Mercurial > hg > truffle
annotate src/os/solaris/vm/os_solaris.cpp @ 17924:917873d2983d
8040140: System.nanoTime() is slow and non-monotonic on OS X
Reviewed-by: sspitsyn, shade, dholmes, acorn
| author | sla |
|---|---|
| date | Fri, 25 Apr 2014 07:40:33 +0200 |
| parents | 6048424d3865 |
| children | f73af4455d7d ce8f6bb717c9 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 17707 | 2 * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 // no precompiled headers |
| 26 #include "classfile/classLoader.hpp" | |
| 27 #include "classfile/systemDictionary.hpp" | |
| 28 #include "classfile/vmSymbols.hpp" | |
| 29 #include "code/icBuffer.hpp" | |
| 30 #include "code/vtableStubs.hpp" | |
| 31 #include "compiler/compileBroker.hpp" | |
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32 #include "compiler/disassembler.hpp" |
| 1972 | 33 #include "interpreter/interpreter.hpp" |
| 34 #include "jvm_solaris.h" | |
| 35 #include "memory/allocation.inline.hpp" | |
| 36 #include "memory/filemap.hpp" | |
| 37 #include "mutex_solaris.inline.hpp" | |
| 38 #include "oops/oop.inline.hpp" | |
| 39 #include "os_share_solaris.hpp" | |
| 40 #include "prims/jniFastGetField.hpp" | |
| 41 #include "prims/jvm.h" | |
| 42 #include "prims/jvm_misc.hpp" | |
| 43 #include "runtime/arguments.hpp" | |
| 44 #include "runtime/extendedPC.hpp" | |
| 45 #include "runtime/globals.hpp" | |
| 46 #include "runtime/interfaceSupport.hpp" | |
| 47 #include "runtime/java.hpp" | |
| 48 #include "runtime/javaCalls.hpp" | |
| 49 #include "runtime/mutexLocker.hpp" | |
| 50 #include "runtime/objectMonitor.hpp" | |
| 51 #include "runtime/osThread.hpp" | |
| 52 #include "runtime/perfMemory.hpp" | |
| 53 #include "runtime/sharedRuntime.hpp" | |
| 54 #include "runtime/statSampler.hpp" | |
| 55 #include "runtime/stubRoutines.hpp" | |
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56 #include "runtime/thread.inline.hpp" |
| 1972 | 57 #include "runtime/threadCritical.hpp" |
| 58 #include "runtime/timer.hpp" | |
| 59 #include "services/attachListener.hpp" | |
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60 #include "services/memTracker.hpp" |
| 1972 | 61 #include "services/runtimeService.hpp" |
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62 #include "utilities/decoder.hpp" |
| 1972 | 63 #include "utilities/defaultStream.hpp" |
| 64 #include "utilities/events.hpp" | |
| 65 #include "utilities/growableArray.hpp" | |
| 66 #include "utilities/vmError.hpp" | |
| 0 | 67 |
| 68 // put OS-includes here | |
| 69 # include <dlfcn.h> | |
| 70 # include <errno.h> | |
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71 # include <exception> |
| 0 | 72 # include <link.h> |
| 73 # include <poll.h> | |
| 74 # include <pthread.h> | |
| 75 # include <pwd.h> | |
| 76 # include <schedctl.h> | |
| 77 # include <setjmp.h> | |
| 78 # include <signal.h> | |
| 79 # include <stdio.h> | |
| 80 # include <alloca.h> | |
| 81 # include <sys/filio.h> | |
| 82 # include <sys/ipc.h> | |
| 83 # include <sys/lwp.h> | |
| 84 # include <sys/machelf.h> // for elf Sym structure used by dladdr1 | |
| 85 # include <sys/mman.h> | |
| 86 # include <sys/processor.h> | |
| 87 # include <sys/procset.h> | |
| 88 # include <sys/pset.h> | |
| 89 # include <sys/resource.h> | |
| 90 # include <sys/shm.h> | |
| 91 # include <sys/socket.h> | |
| 92 # include <sys/stat.h> | |
| 93 # include <sys/systeminfo.h> | |
| 94 # include <sys/time.h> | |
| 95 # include <sys/times.h> | |
| 96 # include <sys/types.h> | |
| 97 # include <sys/wait.h> | |
| 98 # include <sys/utsname.h> | |
| 99 # include <thread.h> | |
| 100 # include <unistd.h> | |
| 101 # include <sys/priocntl.h> | |
| 102 # include <sys/rtpriocntl.h> | |
| 103 # include <sys/tspriocntl.h> | |
| 104 # include <sys/iapriocntl.h> | |
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105 # include <sys/fxpriocntl.h> |
| 0 | 106 # include <sys/loadavg.h> |
| 107 # include <string.h> | |
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108 # include <stdio.h> |
| 0 | 109 |
| 110 # define _STRUCTURED_PROC 1 // this gets us the new structured proc interfaces of 5.6 & later | |
| 111 # include <sys/procfs.h> // see comment in <sys/procfs.h> | |
| 112 | |
| 113 #define MAX_PATH (2 * K) | |
| 114 | |
| 115 // for timer info max values which include all bits | |
| 116 #define ALL_64_BITS CONST64(0xFFFFFFFFFFFFFFFF) | |
| 117 | |
| 118 | |
| 119 // Here are some liblgrp types from sys/lgrp_user.h to be able to | |
| 120 // compile on older systems without this header file. | |
| 121 | |
| 122 #ifndef MADV_ACCESS_LWP | |
| 123 # define MADV_ACCESS_LWP 7 /* next LWP to access heavily */ | |
| 124 #endif | |
| 125 #ifndef MADV_ACCESS_MANY | |
| 126 # define MADV_ACCESS_MANY 8 /* many processes to access heavily */ | |
| 127 #endif | |
| 128 | |
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129 #ifndef LGRP_RSRC_CPU |
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130 # define LGRP_RSRC_CPU 0 /* CPU resources */ |
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131 #endif |
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132 #ifndef LGRP_RSRC_MEM |
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133 # define LGRP_RSRC_MEM 1 /* memory resources */ |
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134 #endif |
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135 |
| 0 | 136 // see thr_setprio(3T) for the basis of these numbers |
| 137 #define MinimumPriority 0 | |
| 138 #define NormalPriority 64 | |
| 139 #define MaximumPriority 127 | |
| 140 | |
| 141 // Values for ThreadPriorityPolicy == 1 | |
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142 int prio_policy1[CriticalPriority+1] = { |
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143 -99999, 0, 16, 32, 48, 64, |
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144 80, 96, 112, 124, 127, 127 }; |
| 0 | 145 |
| 146 // System parameters used internally | |
| 147 static clock_t clock_tics_per_sec = 100; | |
| 148 | |
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149 // Track if we have called enable_extended_FILE_stdio (on Solaris 10u4+) |
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150 static bool enabled_extended_FILE_stdio = false; |
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151 |
| 0 | 152 // For diagnostics to print a message once. see run_periodic_checks |
| 153 static bool check_addr0_done = false; | |
| 154 static sigset_t check_signal_done; | |
| 155 static bool check_signals = true; | |
| 156 | |
| 157 address os::Solaris::handler_start; // start pc of thr_sighndlrinfo | |
| 158 address os::Solaris::handler_end; // end pc of thr_sighndlrinfo | |
| 159 | |
| 160 address os::Solaris::_main_stack_base = NULL; // 4352906 workaround | |
| 161 | |
| 162 | |
| 163 // "default" initializers for missing libc APIs | |
| 164 extern "C" { | |
| 165 static int lwp_mutex_init(mutex_t *mx, int scope, void *arg) { memset(mx, 0, sizeof(mutex_t)); return 0; } | |
| 166 static int lwp_mutex_destroy(mutex_t *mx) { return 0; } | |
| 167 | |
| 168 static int lwp_cond_init(cond_t *cv, int scope, void *arg){ memset(cv, 0, sizeof(cond_t)); return 0; } | |
| 169 static int lwp_cond_destroy(cond_t *cv) { return 0; } | |
| 170 } | |
| 171 | |
| 172 // "default" initializers for pthread-based synchronization | |
| 173 extern "C" { | |
| 174 static int pthread_mutex_default_init(mutex_t *mx, int scope, void *arg) { memset(mx, 0, sizeof(mutex_t)); return 0; } | |
| 175 static int pthread_cond_default_init(cond_t *cv, int scope, void *arg){ memset(cv, 0, sizeof(cond_t)); return 0; } | |
| 176 } | |
| 177 | |
| 10405 | 178 static void unpackTime(timespec* absTime, bool isAbsolute, jlong time); |
| 179 | |
| 0 | 180 // Thread Local Storage |
| 181 // This is common to all Solaris platforms so it is defined here, | |
| 182 // in this common file. | |
| 183 // The declarations are in the os_cpu threadLS*.hpp files. | |
| 184 // | |
| 185 // Static member initialization for TLS | |
| 186 Thread* ThreadLocalStorage::_get_thread_cache[ThreadLocalStorage::_pd_cache_size] = {NULL}; | |
| 187 | |
| 188 #ifndef PRODUCT | |
| 189 #define _PCT(n,d) ((100.0*(double)(n))/(double)(d)) | |
| 190 | |
| 191 int ThreadLocalStorage::_tcacheHit = 0; | |
| 192 int ThreadLocalStorage::_tcacheMiss = 0; | |
| 193 | |
| 194 void ThreadLocalStorage::print_statistics() { | |
| 195 int total = _tcacheMiss+_tcacheHit; | |
| 196 tty->print_cr("Thread cache hits %d misses %d total %d percent %f\n", | |
| 197 _tcacheHit, _tcacheMiss, total, _PCT(_tcacheHit, total)); | |
| 198 } | |
| 199 #undef _PCT | |
| 200 #endif // PRODUCT | |
| 201 | |
| 202 Thread* ThreadLocalStorage::get_thread_via_cache_slowly(uintptr_t raw_id, | |
| 203 int index) { | |
| 204 Thread *thread = get_thread_slow(); | |
| 205 if (thread != NULL) { | |
| 206 address sp = os::current_stack_pointer(); | |
| 207 guarantee(thread->_stack_base == NULL || | |
| 208 (sp <= thread->_stack_base && | |
| 209 sp >= thread->_stack_base - thread->_stack_size) || | |
| 210 is_error_reported(), | |
| 211 "sp must be inside of selected thread stack"); | |
| 212 | |
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213 thread->set_self_raw_id(raw_id); // mark for quick retrieval |
| 0 | 214 _get_thread_cache[ index ] = thread; |
| 215 } | |
| 216 return thread; | |
| 217 } | |
| 218 | |
| 219 | |
| 220 static const double all_zero[ sizeof(Thread) / sizeof(double) + 1 ] = {0}; | |
| 221 #define NO_CACHED_THREAD ((Thread*)all_zero) | |
| 222 | |
| 223 void ThreadLocalStorage::pd_set_thread(Thread* thread) { | |
| 224 | |
| 225 // Store the new value before updating the cache to prevent a race | |
| 226 // between get_thread_via_cache_slowly() and this store operation. | |
| 227 os::thread_local_storage_at_put(ThreadLocalStorage::thread_index(), thread); | |
| 228 | |
| 229 // Update thread cache with new thread if setting on thread create, | |
| 230 // or NO_CACHED_THREAD (zeroed) thread if resetting thread on exit. | |
| 231 uintptr_t raw = pd_raw_thread_id(); | |
| 232 int ix = pd_cache_index(raw); | |
| 233 _get_thread_cache[ix] = thread == NULL ? NO_CACHED_THREAD : thread; | |
| 234 } | |
| 235 | |
| 236 void ThreadLocalStorage::pd_init() { | |
| 237 for (int i = 0; i < _pd_cache_size; i++) { | |
| 238 _get_thread_cache[i] = NO_CACHED_THREAD; | |
| 239 } | |
| 240 } | |
| 241 | |
| 242 // Invalidate all the caches (happens to be the same as pd_init). | |
| 243 void ThreadLocalStorage::pd_invalidate_all() { pd_init(); } | |
| 244 | |
| 245 #undef NO_CACHED_THREAD | |
| 246 | |
| 247 // END Thread Local Storage | |
| 248 | |
| 249 static inline size_t adjust_stack_size(address base, size_t size) { | |
| 250 if ((ssize_t)size < 0) { | |
| 251 // 4759953: Compensate for ridiculous stack size. | |
| 252 size = max_intx; | |
| 253 } | |
| 254 if (size > (size_t)base) { | |
| 255 // 4812466: Make sure size doesn't allow the stack to wrap the address space. | |
| 256 size = (size_t)base; | |
| 257 } | |
| 258 return size; | |
| 259 } | |
| 260 | |
| 261 static inline stack_t get_stack_info() { | |
| 262 stack_t st; | |
| 263 int retval = thr_stksegment(&st); | |
| 264 st.ss_size = adjust_stack_size((address)st.ss_sp, st.ss_size); | |
| 265 assert(retval == 0, "incorrect return value from thr_stksegment"); | |
| 266 assert((address)&st < (address)st.ss_sp, "Invalid stack base returned"); | |
| 267 assert((address)&st > (address)st.ss_sp-st.ss_size, "Invalid stack size returned"); | |
| 268 return st; | |
| 269 } | |
| 270 | |
| 271 address os::current_stack_base() { | |
| 272 int r = thr_main() ; | |
| 273 guarantee (r == 0 || r == 1, "CR6501650 or CR6493689") ; | |
| 274 bool is_primordial_thread = r; | |
| 275 | |
| 276 // Workaround 4352906, avoid calls to thr_stksegment by | |
| 277 // thr_main after the first one (it looks like we trash | |
| 278 // some data, causing the value for ss_sp to be incorrect). | |
| 279 if (!is_primordial_thread || os::Solaris::_main_stack_base == NULL) { | |
| 280 stack_t st = get_stack_info(); | |
| 281 if (is_primordial_thread) { | |
| 282 // cache initial value of stack base | |
| 283 os::Solaris::_main_stack_base = (address)st.ss_sp; | |
| 284 } | |
| 285 return (address)st.ss_sp; | |
| 286 } else { | |
| 287 guarantee(os::Solaris::_main_stack_base != NULL, "Attempt to use null cached stack base"); | |
| 288 return os::Solaris::_main_stack_base; | |
| 289 } | |
| 290 } | |
| 291 | |
| 292 size_t os::current_stack_size() { | |
| 293 size_t size; | |
| 294 | |
| 295 int r = thr_main() ; | |
| 296 guarantee (r == 0 || r == 1, "CR6501650 or CR6493689") ; | |
| 297 if(!r) { | |
| 298 size = get_stack_info().ss_size; | |
| 299 } else { | |
| 300 struct rlimit limits; | |
| 301 getrlimit(RLIMIT_STACK, &limits); | |
| 302 size = adjust_stack_size(os::Solaris::_main_stack_base, (size_t)limits.rlim_cur); | |
| 303 } | |
| 304 // base may not be page aligned | |
| 305 address base = current_stack_base(); | |
| 306 address bottom = (address)align_size_up((intptr_t)(base - size), os::vm_page_size());; | |
| 307 return (size_t)(base - bottom); | |
| 308 } | |
| 309 | |
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310 struct tm* os::localtime_pd(const time_t* clock, struct tm* res) { |
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311 return localtime_r(clock, res); |
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312 } |
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313 |
| 0 | 314 // interruptible infrastructure |
| 315 | |
| 316 // setup_interruptible saves the thread state before going into an | |
| 317 // interruptible system call. | |
| 318 // The saved state is used to restore the thread to | |
| 319 // its former state whether or not an interrupt is received. | |
| 320 // Used by classloader os::read | |
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321 // os::restartable_read calls skip this layer and stay in _thread_in_native |
| 0 | 322 |
| 323 void os::Solaris::setup_interruptible(JavaThread* thread) { | |
| 324 | |
| 325 JavaThreadState thread_state = thread->thread_state(); | |
| 326 | |
| 327 assert(thread_state != _thread_blocked, "Coming from the wrong thread"); | |
| 328 assert(thread_state != _thread_in_native, "Native threads skip setup_interruptible"); | |
| 329 OSThread* osthread = thread->osthread(); | |
| 330 osthread->set_saved_interrupt_thread_state(thread_state); | |
| 331 thread->frame_anchor()->make_walkable(thread); | |
| 332 ThreadStateTransition::transition(thread, thread_state, _thread_blocked); | |
| 333 } | |
| 334 | |
| 335 // Version of setup_interruptible() for threads that are already in | |
| 336 // _thread_blocked. Used by os_sleep(). | |
| 337 void os::Solaris::setup_interruptible_already_blocked(JavaThread* thread) { | |
| 338 thread->frame_anchor()->make_walkable(thread); | |
| 339 } | |
| 340 | |
| 341 JavaThread* os::Solaris::setup_interruptible() { | |
| 342 JavaThread* thread = (JavaThread*)ThreadLocalStorage::thread(); | |
| 343 setup_interruptible(thread); | |
| 344 return thread; | |
| 345 } | |
| 346 | |
| 347 void os::Solaris::try_enable_extended_io() { | |
| 348 typedef int (*enable_extended_FILE_stdio_t)(int, int); | |
| 349 | |
| 350 if (!UseExtendedFileIO) { | |
| 351 return; | |
| 352 } | |
| 353 | |
| 354 enable_extended_FILE_stdio_t enabler = | |
| 355 (enable_extended_FILE_stdio_t) dlsym(RTLD_DEFAULT, | |
| 356 "enable_extended_FILE_stdio"); | |
| 357 if (enabler) { | |
| 358 enabler(-1, -1); | |
| 359 } | |
| 360 } | |
| 361 | |
| 362 | |
| 363 #ifdef ASSERT | |
| 364 | |
| 365 JavaThread* os::Solaris::setup_interruptible_native() { | |
| 366 JavaThread* thread = (JavaThread*)ThreadLocalStorage::thread(); | |
| 367 JavaThreadState thread_state = thread->thread_state(); | |
| 368 assert(thread_state == _thread_in_native, "Assumed thread_in_native"); | |
| 369 return thread; | |
| 370 } | |
| 371 | |
| 372 void os::Solaris::cleanup_interruptible_native(JavaThread* thread) { | |
| 373 JavaThreadState thread_state = thread->thread_state(); | |
| 374 assert(thread_state == _thread_in_native, "Assumed thread_in_native"); | |
| 375 } | |
| 376 #endif | |
| 377 | |
| 378 // cleanup_interruptible reverses the effects of setup_interruptible | |
| 379 // setup_interruptible_already_blocked() does not need any cleanup. | |
| 380 | |
| 381 void os::Solaris::cleanup_interruptible(JavaThread* thread) { | |
| 382 OSThread* osthread = thread->osthread(); | |
| 383 | |
| 384 ThreadStateTransition::transition(thread, _thread_blocked, osthread->saved_interrupt_thread_state()); | |
| 385 } | |
| 386 | |
| 387 // I/O interruption related counters called in _INTERRUPTIBLE | |
| 388 | |
| 389 void os::Solaris::bump_interrupted_before_count() { | |
| 390 RuntimeService::record_interrupted_before_count(); | |
| 391 } | |
| 392 | |
| 393 void os::Solaris::bump_interrupted_during_count() { | |
| 394 RuntimeService::record_interrupted_during_count(); | |
| 395 } | |
| 396 | |
| 397 static int _processors_online = 0; | |
| 398 | |
| 399 jint os::Solaris::_os_thread_limit = 0; | |
| 400 volatile jint os::Solaris::_os_thread_count = 0; | |
| 401 | |
| 402 julong os::available_memory() { | |
| 403 return Solaris::available_memory(); | |
| 404 } | |
| 405 | |
| 406 julong os::Solaris::available_memory() { | |
| 407 return (julong)sysconf(_SC_AVPHYS_PAGES) * os::vm_page_size(); | |
| 408 } | |
| 409 | |
| 410 julong os::Solaris::_physical_memory = 0; | |
| 411 | |
| 412 julong os::physical_memory() { | |
| 413 return Solaris::physical_memory(); | |
| 414 } | |
| 415 | |
| 416 static hrtime_t first_hrtime = 0; | |
| 417 static const hrtime_t hrtime_hz = 1000*1000*1000; | |
| 418 static volatile hrtime_t max_hrtime = 0; | |
| 419 | |
| 420 | |
| 421 void os::Solaris::initialize_system_info() { | |
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422 set_processor_count(sysconf(_SC_NPROCESSORS_CONF)); |
| 0 | 423 _processors_online = sysconf (_SC_NPROCESSORS_ONLN); |
| 424 _physical_memory = (julong)sysconf(_SC_PHYS_PAGES) * (julong)sysconf(_SC_PAGESIZE); | |
| 425 } | |
| 426 | |
| 427 int os::active_processor_count() { | |
| 428 int online_cpus = sysconf(_SC_NPROCESSORS_ONLN); | |
| 429 pid_t pid = getpid(); | |
| 430 psetid_t pset = PS_NONE; | |
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431 // Are we running in a processor set or is there any processor set around? |
| 0 | 432 if (pset_bind(PS_QUERY, P_PID, pid, &pset) == 0) { |
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433 uint_t pset_cpus; |
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434 // Query the number of cpus available to us. |
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435 if (pset_info(pset, NULL, &pset_cpus, NULL) == 0) { |
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436 assert(pset_cpus > 0 && pset_cpus <= online_cpus, "sanity check"); |
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437 _processors_online = pset_cpus; |
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438 return pset_cpus; |
| 0 | 439 } |
| 440 } | |
| 441 // Otherwise return number of online cpus | |
| 442 return online_cpus; | |
| 443 } | |
| 444 | |
| 445 static bool find_processors_in_pset(psetid_t pset, | |
| 446 processorid_t** id_array, | |
| 447 uint_t* id_length) { | |
| 448 bool result = false; | |
| 449 // Find the number of processors in the processor set. | |
| 450 if (pset_info(pset, NULL, id_length, NULL) == 0) { | |
| 451 // Make up an array to hold their ids. | |
| 6197 | 452 *id_array = NEW_C_HEAP_ARRAY(processorid_t, *id_length, mtInternal); |
| 0 | 453 // Fill in the array with their processor ids. |
| 454 if (pset_info(pset, NULL, id_length, *id_array) == 0) { | |
| 455 result = true; | |
| 456 } | |
| 457 } | |
| 458 return result; | |
| 459 } | |
| 460 | |
| 461 // Callers of find_processors_online() must tolerate imprecise results -- | |
| 462 // the system configuration can change asynchronously because of DR | |
| 463 // or explicit psradm operations. | |
| 464 // | |
| 465 // We also need to take care that the loop (below) terminates as the | |
| 466 // number of processors online can change between the _SC_NPROCESSORS_ONLN | |
| 467 // request and the loop that builds the list of processor ids. Unfortunately | |
| 468 // there's no reliable way to determine the maximum valid processor id, | |
| 469 // so we use a manifest constant, MAX_PROCESSOR_ID, instead. See p_online | |
| 470 // man pages, which claim the processor id set is "sparse, but | |
| 471 // not too sparse". MAX_PROCESSOR_ID is used to ensure that we eventually | |
| 472 // exit the loop. | |
| 473 // | |
| 474 // In the future we'll be able to use sysconf(_SC_CPUID_MAX), but that's | |
| 475 // not available on S8.0. | |
| 476 | |
| 477 static bool find_processors_online(processorid_t** id_array, | |
| 478 uint* id_length) { | |
| 479 const processorid_t MAX_PROCESSOR_ID = 100000 ; | |
| 480 // Find the number of processors online. | |
| 481 *id_length = sysconf(_SC_NPROCESSORS_ONLN); | |
| 482 // Make up an array to hold their ids. | |
| 6197 | 483 *id_array = NEW_C_HEAP_ARRAY(processorid_t, *id_length, mtInternal); |
| 0 | 484 // Processors need not be numbered consecutively. |
| 485 long found = 0; | |
| 486 processorid_t next = 0; | |
| 487 while (found < *id_length && next < MAX_PROCESSOR_ID) { | |
| 488 processor_info_t info; | |
| 489 if (processor_info(next, &info) == 0) { | |
| 490 // NB, PI_NOINTR processors are effectively online ... | |
| 491 if (info.pi_state == P_ONLINE || info.pi_state == P_NOINTR) { | |
| 492 (*id_array)[found] = next; | |
| 493 found += 1; | |
| 494 } | |
| 495 } | |
| 496 next += 1; | |
| 497 } | |
| 498 if (found < *id_length) { | |
| 499 // The loop above didn't identify the expected number of processors. | |
| 500 // We could always retry the operation, calling sysconf(_SC_NPROCESSORS_ONLN) | |
| 501 // and re-running the loop, above, but there's no guarantee of progress | |
| 502 // if the system configuration is in flux. Instead, we just return what | |
| 503 // we've got. Note that in the worst case find_processors_online() could | |
| 504 // return an empty set. (As a fall-back in the case of the empty set we | |
| 505 // could just return the ID of the current processor). | |
| 506 *id_length = found ; | |
| 507 } | |
| 508 | |
| 509 return true; | |
| 510 } | |
| 511 | |
| 512 static bool assign_distribution(processorid_t* id_array, | |
| 513 uint id_length, | |
| 514 uint* distribution, | |
| 515 uint distribution_length) { | |
| 516 // We assume we can assign processorid_t's to uint's. | |
| 517 assert(sizeof(processorid_t) == sizeof(uint), | |
| 518 "can't convert processorid_t to uint"); | |
| 519 // Quick check to see if we won't succeed. | |
| 520 if (id_length < distribution_length) { | |
| 521 return false; | |
| 522 } | |
| 523 // Assign processor ids to the distribution. | |
| 524 // Try to shuffle processors to distribute work across boards, | |
| 525 // assuming 4 processors per board. | |
| 526 const uint processors_per_board = ProcessDistributionStride; | |
| 527 // Find the maximum processor id. | |
| 528 processorid_t max_id = 0; | |
| 529 for (uint m = 0; m < id_length; m += 1) { | |
| 530 max_id = MAX2(max_id, id_array[m]); | |
| 531 } | |
| 532 // The next id, to limit loops. | |
| 533 const processorid_t limit_id = max_id + 1; | |
| 534 // Make up markers for available processors. | |
| 6197 | 535 bool* available_id = NEW_C_HEAP_ARRAY(bool, limit_id, mtInternal); |
| 0 | 536 for (uint c = 0; c < limit_id; c += 1) { |
| 537 available_id[c] = false; | |
| 538 } | |
| 539 for (uint a = 0; a < id_length; a += 1) { | |
| 540 available_id[id_array[a]] = true; | |
| 541 } | |
| 542 // Step by "boards", then by "slot", copying to "assigned". | |
| 543 // NEEDS_CLEANUP: The assignment of processors should be stateful, | |
| 544 // remembering which processors have been assigned by | |
| 545 // previous calls, etc., so as to distribute several | |
| 546 // independent calls of this method. What we'd like is | |
| 547 // It would be nice to have an API that let us ask | |
| 548 // how many processes are bound to a processor, | |
| 549 // but we don't have that, either. | |
| 550 // In the short term, "board" is static so that | |
| 551 // subsequent distributions don't all start at board 0. | |
| 552 static uint board = 0; | |
| 553 uint assigned = 0; | |
| 554 // Until we've found enough processors .... | |
| 555 while (assigned < distribution_length) { | |
| 556 // ... find the next available processor in the board. | |
| 557 for (uint slot = 0; slot < processors_per_board; slot += 1) { | |
| 558 uint try_id = board * processors_per_board + slot; | |
| 559 if ((try_id < limit_id) && (available_id[try_id] == true)) { | |
| 560 distribution[assigned] = try_id; | |
| 561 available_id[try_id] = false; | |
| 562 assigned += 1; | |
| 563 break; | |
| 564 } | |
| 565 } | |
| 566 board += 1; | |
| 567 if (board * processors_per_board + 0 >= limit_id) { | |
| 568 board = 0; | |
| 569 } | |
| 570 } | |
| 571 if (available_id != NULL) { | |
| 6197 | 572 FREE_C_HEAP_ARRAY(bool, available_id, mtInternal); |
| 0 | 573 } |
| 574 return true; | |
| 575 } | |
| 576 | |
| 4006 | 577 void os::set_native_thread_name(const char *name) { |
| 578 // Not yet implemented. | |
| 579 return; | |
| 580 } | |
| 581 | |
| 0 | 582 bool os::distribute_processes(uint length, uint* distribution) { |
| 583 bool result = false; | |
| 584 // Find the processor id's of all the available CPUs. | |
| 585 processorid_t* id_array = NULL; | |
| 586 uint id_length = 0; | |
| 587 // There are some races between querying information and using it, | |
| 588 // since processor sets can change dynamically. | |
| 589 psetid_t pset = PS_NONE; | |
| 590 // Are we running in a processor set? | |
| 591 if ((pset_bind(PS_QUERY, P_PID, P_MYID, &pset) == 0) && pset != PS_NONE) { | |
| 592 result = find_processors_in_pset(pset, &id_array, &id_length); | |
| 593 } else { | |
| 594 result = find_processors_online(&id_array, &id_length); | |
| 595 } | |
| 596 if (result == true) { | |
| 597 if (id_length >= length) { | |
| 598 result = assign_distribution(id_array, id_length, distribution, length); | |
| 599 } else { | |
| 600 result = false; | |
| 601 } | |
| 602 } | |
| 603 if (id_array != NULL) { | |
| 6197 | 604 FREE_C_HEAP_ARRAY(processorid_t, id_array, mtInternal); |
| 0 | 605 } |
| 606 return result; | |
| 607 } | |
| 608 | |
| 609 bool os::bind_to_processor(uint processor_id) { | |
| 610 // We assume that a processorid_t can be stored in a uint. | |
| 611 assert(sizeof(uint) == sizeof(processorid_t), | |
| 612 "can't convert uint to processorid_t"); | |
| 613 int bind_result = | |
| 614 processor_bind(P_LWPID, // bind LWP. | |
| 615 P_MYID, // bind current LWP. | |
| 616 (processorid_t) processor_id, // id. | |
| 617 NULL); // don't return old binding. | |
| 618 return (bind_result == 0); | |
| 619 } | |
| 620 | |
| 621 bool os::getenv(const char* name, char* buffer, int len) { | |
| 622 char* val = ::getenv( name ); | |
| 623 if ( val == NULL | |
| 624 || strlen(val) + 1 > len ) { | |
| 625 if (len > 0) buffer[0] = 0; // return a null string | |
| 626 return false; | |
| 627 } | |
| 628 strcpy( buffer, val ); | |
| 629 return true; | |
| 630 } | |
| 631 | |
| 632 | |
| 633 // Return true if user is running as root. | |
| 634 | |
| 635 bool os::have_special_privileges() { | |
| 636 static bool init = false; | |
| 637 static bool privileges = false; | |
| 638 if (!init) { | |
| 639 privileges = (getuid() != geteuid()) || (getgid() != getegid()); | |
| 640 init = true; | |
| 641 } | |
| 642 return privileges; | |
| 643 } | |
| 644 | |
| 645 | |
| 646 void os::init_system_properties_values() { | |
| 647 // The next steps are taken in the product version: | |
| 648 // | |
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649 // Obtain the JAVA_HOME value from the location of libjvm.so. |
| 0 | 650 // This library should be located at: |
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651 // <JAVA_HOME>/jre/lib/<arch>/{client|server}/libjvm.so. |
| 0 | 652 // |
| 653 // If "/jre/lib/" appears at the right place in the path, then we | |
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654 // assume libjvm.so is installed in a JDK and we use this path. |
| 0 | 655 // |
| 656 // Otherwise exit with message: "Could not create the Java virtual machine." | |
| 657 // | |
| 658 // The following extra steps are taken in the debugging version: | |
| 659 // | |
| 660 // If "/jre/lib/" does NOT appear at the right place in the path | |
| 661 // instead of exit check for $JAVA_HOME environment variable. | |
| 662 // | |
| 663 // If it is defined and we are able to locate $JAVA_HOME/jre/lib/<arch>, | |
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664 // then we append a fake suffix "hotspot/libjvm.so" to this path so |
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665 // it looks like libjvm.so is installed there |
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666 // <JAVA_HOME>/jre/lib/<arch>/hotspot/libjvm.so. |
| 0 | 667 // |
| 668 // Otherwise exit. | |
| 669 // | |
| 670 // Important note: if the location of libjvm.so changes this | |
| 671 // code needs to be changed accordingly. | |
| 672 | |
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673 // Base path of extensions installed on the system. |
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674 #define SYS_EXT_DIR "/usr/jdk/packages" |
| 0 | 675 #define EXTENSIONS_DIR "/lib/ext" |
| 676 #define ENDORSED_DIR "/lib/endorsed" | |
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677 |
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678 char cpu_arch[12]; |
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679 // Buffer that fits several sprintfs. |
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680 // Note that the space for the colon and the trailing null are provided |
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681 // by the nulls included by the sizeof operator. |
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682 const size_t bufsize = |
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683 MAX4((size_t)MAXPATHLEN, // For dll_dir & friends. |
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684 sizeof(SYS_EXT_DIR) + sizeof("/lib/") + strlen(cpu_arch), // invariant ld_library_path |
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685 (size_t)MAXPATHLEN + sizeof(EXTENSIONS_DIR) + sizeof(SYS_EXT_DIR) + sizeof(EXTENSIONS_DIR), // extensions dir |
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686 (size_t)MAXPATHLEN + sizeof(ENDORSED_DIR)); // endorsed dir |
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687 char *buf = (char *)NEW_C_HEAP_ARRAY(char, bufsize, mtInternal); |
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688 |
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689 // sysclasspath, java_home, dll_dir |
| 0 | 690 { |
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691 char *pslash; |
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692 os::jvm_path(buf, bufsize); |
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693 |
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694 // Found the full path to libjvm.so. |
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695 // Now cut the path to <java_home>/jre if we can. |
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696 *(strrchr(buf, '/')) = '\0'; // Get rid of /libjvm.so. |
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697 pslash = strrchr(buf, '/'); |
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698 if (pslash != NULL) { |
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699 *pslash = '\0'; // Get rid of /{client|server|hotspot}. |
| 0 | 700 } |
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701 Arguments::set_dll_dir(buf); |
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702 |
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703 if (pslash != NULL) { |
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704 pslash = strrchr(buf, '/'); |
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705 if (pslash != NULL) { |
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706 *pslash = '\0'; // Get rid of /<arch>. |
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707 pslash = strrchr(buf, '/'); |
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708 if (pslash != NULL) { |
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709 *pslash = '\0'; // Get rid of /lib. |
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710 } |
| 0 | 711 } |
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712 } |
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713 Arguments::set_java_home(buf); |
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714 set_boot_path('/', ':'); |
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715 } |
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716 |
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717 // Where to look for native libraries. |
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718 { |
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719 // Use dlinfo() to determine the correct java.library.path. |
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720 // |
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721 // If we're launched by the Java launcher, and the user |
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722 // does not set java.library.path explicitly on the commandline, |
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723 // the Java launcher sets LD_LIBRARY_PATH for us and unsets |
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724 // LD_LIBRARY_PATH_32 and LD_LIBRARY_PATH_64. In this case |
|
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725 // dlinfo returns LD_LIBRARY_PATH + crle settings (including |
|
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726 // /usr/lib), which is exactly what we want. |
|
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727 // |
|
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728 // If the user does set java.library.path, it completely |
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729 // overwrites this setting, and always has. |
|
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730 // |
|
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731 // If we're not launched by the Java launcher, we may |
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732 // get here with any/all of the LD_LIBRARY_PATH[_32|64] |
|
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733 // settings. Again, dlinfo does exactly what we want. |
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734 |
|
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735 Dl_serinfo info_sz, *info = &info_sz; |
|
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736 Dl_serpath *path; |
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737 char *library_path; |
|
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738 char *common_path = buf; |
|
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739 |
|
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740 // Determine search path count and required buffer size. |
|
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741 if (dlinfo(RTLD_SELF, RTLD_DI_SERINFOSIZE, (void *)info) == -1) { |
|
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742 FREE_C_HEAP_ARRAY(char, buf, mtInternal); |
|
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743 vm_exit_during_initialization("dlinfo SERINFOSIZE request", dlerror()); |
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744 } |
|
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745 |
|
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746 // Allocate new buffer and initialize. |
|
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747 info = (Dl_serinfo*)NEW_C_HEAP_ARRAY(char, info_sz.dls_size, mtInternal); |
|
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748 info->dls_size = info_sz.dls_size; |
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749 info->dls_cnt = info_sz.dls_cnt; |
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750 |
|
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751 // Obtain search path information. |
|
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752 if (dlinfo(RTLD_SELF, RTLD_DI_SERINFO, (void *)info) == -1) { |
|
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753 FREE_C_HEAP_ARRAY(char, buf, mtInternal); |
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754 FREE_C_HEAP_ARRAY(char, info, mtInternal); |
|
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755 vm_exit_during_initialization("dlinfo SERINFO request", dlerror()); |
|
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756 } |
|
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757 |
|
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758 path = &info->dls_serpath[0]; |
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759 |
|
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760 // Note: Due to a legacy implementation, most of the library path |
|
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761 // is set in the launcher. This was to accomodate linking restrictions |
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762 // on legacy Solaris implementations (which are no longer supported). |
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763 // Eventually, all the library path setting will be done here. |
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764 // |
|
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765 // However, to prevent the proliferation of improperly built native |
|
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766 // libraries, the new path component /usr/jdk/packages is added here. |
|
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767 |
|
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768 // Determine the actual CPU architecture. |
|
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769 sysinfo(SI_ARCHITECTURE, cpu_arch, sizeof(cpu_arch)); |
| 0 | 770 #ifdef _LP64 |
|
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771 // If we are a 64-bit vm, perform the following translations: |
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772 // sparc -> sparcv9 |
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773 // i386 -> amd64 |
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774 if (strcmp(cpu_arch, "sparc") == 0) { |
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775 strcat(cpu_arch, "v9"); |
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776 } else if (strcmp(cpu_arch, "i386") == 0) { |
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777 strcpy(cpu_arch, "amd64"); |
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778 } |
| 0 | 779 #endif |
| 780 | |
|
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781 // Construct the invariant part of ld_library_path. |
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782 sprintf(common_path, SYS_EXT_DIR "/lib/%s", cpu_arch); |
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783 |
|
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784 // Struct size is more than sufficient for the path components obtained |
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785 // through the dlinfo() call, so only add additional space for the path |
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786 // components explicitly added here. |
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787 size_t library_path_size = info->dls_size + strlen(common_path); |
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788 library_path = (char *)NEW_C_HEAP_ARRAY(char, library_path_size, mtInternal); |
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789 library_path[0] = '\0'; |
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790 |
|
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791 // Construct the desired Java library path from the linker's library |
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792 // search path. |
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793 // |
|
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794 // For compatibility, it is optimal that we insert the additional path |
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795 // components specific to the Java VM after those components specified |
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796 // in LD_LIBRARY_PATH (if any) but before those added by the ld.so |
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797 // infrastructure. |
|
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798 if (info->dls_cnt == 0) { // Not sure this can happen, but allow for it. |
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799 strcpy(library_path, common_path); |
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800 } else { |
|
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801 int inserted = 0; |
|
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802 int i; |
|
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803 for (i = 0; i < info->dls_cnt; i++, path++) { |
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804 uint_t flags = path->dls_flags & LA_SER_MASK; |
|
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805 if (((flags & LA_SER_LIBPATH) == 0) && !inserted) { |
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806 strcat(library_path, common_path); |
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807 strcat(library_path, os::path_separator()); |
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808 inserted = 1; |
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809 } |
|
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810 strcat(library_path, path->dls_name); |
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811 strcat(library_path, os::path_separator()); |
| 0 | 812 } |
|
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813 // Eliminate trailing path separator. |
|
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814 library_path[strlen(library_path)-1] = '\0'; |
| 0 | 815 } |
| 816 | |
|
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817 // happens before argument parsing - can't use a trace flag |
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818 // tty->print_raw("init_system_properties_values: native lib path: "); |
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819 // tty->print_raw_cr(library_path); |
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820 |
|
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821 // Callee copies into its own buffer. |
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822 Arguments::set_library_path(library_path); |
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823 |
|
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824 FREE_C_HEAP_ARRAY(char, library_path, mtInternal); |
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825 FREE_C_HEAP_ARRAY(char, info, mtInternal); |
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826 } |
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827 |
|
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828 // Extensions directories. |
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829 sprintf(buf, "%s" EXTENSIONS_DIR ":" SYS_EXT_DIR EXTENSIONS_DIR, Arguments::get_java_home()); |
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830 Arguments::set_ext_dirs(buf); |
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831 |
|
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832 // Endorsed standards default directory. |
|
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|
833 sprintf(buf, "%s" ENDORSED_DIR, Arguments::get_java_home()); |
|
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834 Arguments::set_endorsed_dirs(buf); |
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835 |
|
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836 FREE_C_HEAP_ARRAY(char, buf, mtInternal); |
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837 |
|
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838 #undef SYS_EXT_DIR |
| 0 | 839 #undef EXTENSIONS_DIR |
| 840 #undef ENDORSED_DIR | |
| 841 } | |
| 842 | |
| 843 void os::breakpoint() { | |
| 844 BREAKPOINT; | |
| 845 } | |
| 846 | |
| 847 bool os::obsolete_option(const JavaVMOption *option) | |
| 848 { | |
| 849 if (!strncmp(option->optionString, "-Xt", 3)) { | |
| 850 return true; | |
| 851 } else if (!strncmp(option->optionString, "-Xtm", 4)) { | |
| 852 return true; | |
| 853 } else if (!strncmp(option->optionString, "-Xverifyheap", 12)) { | |
| 854 return true; | |
| 855 } else if (!strncmp(option->optionString, "-Xmaxjitcodesize", 16)) { | |
| 856 return true; | |
| 857 } | |
| 858 return false; | |
| 859 } | |
| 860 | |
| 861 bool os::Solaris::valid_stack_address(Thread* thread, address sp) { | |
| 862 address stackStart = (address)thread->stack_base(); | |
| 863 address stackEnd = (address)(stackStart - (address)thread->stack_size()); | |
| 864 if (sp < stackStart && sp >= stackEnd ) return true; | |
| 865 return false; | |
| 866 } | |
| 867 | |
| 868 extern "C" void breakpoint() { | |
| 869 // use debugger to set breakpoint here | |
| 870 } | |
| 871 | |
| 872 static thread_t main_thread; | |
| 873 | |
| 874 // Thread start routine for all new Java threads | |
| 875 extern "C" void* java_start(void* thread_addr) { | |
| 876 // Try to randomize the cache line index of hot stack frames. | |
| 877 // This helps when threads of the same stack traces evict each other's | |
| 878 // cache lines. The threads can be either from the same JVM instance, or | |
| 879 // from different JVM instances. The benefit is especially true for | |
| 880 // processors with hyperthreading technology. | |
| 881 static int counter = 0; | |
| 882 int pid = os::current_process_id(); | |
| 883 alloca(((pid ^ counter++) & 7) * 128); | |
| 884 | |
| 885 int prio; | |
| 886 Thread* thread = (Thread*)thread_addr; | |
| 887 OSThread* osthr = thread->osthread(); | |
| 888 | |
| 889 osthr->set_lwp_id( _lwp_self() ); // Store lwp in case we are bound | |
| 890 thread->_schedctl = (void *) schedctl_init () ; | |
| 891 | |
| 892 if (UseNUMA) { | |
| 893 int lgrp_id = os::numa_get_group_id(); | |
| 894 if (lgrp_id != -1) { | |
| 895 thread->set_lgrp_id(lgrp_id); | |
| 896 } | |
| 897 } | |
| 898 | |
| 899 // If the creator called set priority before we started, | |
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900 // we need to call set_native_priority now that we have an lwp. |
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901 // We used to get the priority from thr_getprio (we called |
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902 // thr_setprio way back in create_thread) and pass it to |
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903 // set_native_priority, but Solaris scales the priority |
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904 // in java_to_os_priority, so when we read it back here, |
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905 // we pass trash to set_native_priority instead of what's |
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906 // in java_to_os_priority. So we save the native priority |
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907 // in the osThread and recall it here. |
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908 |
| 0 | 909 if ( osthr->thread_id() != -1 ) { |
| 910 if ( UseThreadPriorities ) { | |
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911 int prio = osthr->native_priority(); |
| 0 | 912 if (ThreadPriorityVerbose) { |
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913 tty->print_cr("Starting Thread " INTPTR_FORMAT ", LWP is " |
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914 INTPTR_FORMAT ", setting priority: %d\n", |
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915 osthr->thread_id(), osthr->lwp_id(), prio); |
| 0 | 916 } |
| 917 os::set_native_priority(thread, prio); | |
| 918 } | |
| 919 } else if (ThreadPriorityVerbose) { | |
| 920 warning("Can't set priority in _start routine, thread id hasn't been set\n"); | |
| 921 } | |
| 922 | |
| 923 assert(osthr->get_state() == RUNNABLE, "invalid os thread state"); | |
| 924 | |
| 925 // initialize signal mask for this thread | |
| 926 os::Solaris::hotspot_sigmask(thread); | |
| 927 | |
| 928 thread->run(); | |
| 929 | |
| 930 // One less thread is executing | |
| 931 // When the VMThread gets here, the main thread may have already exited | |
| 932 // which frees the CodeHeap containing the Atomic::dec code | |
| 933 if (thread != VMThread::vm_thread() && VMThread::vm_thread() != NULL) { | |
| 934 Atomic::dec(&os::Solaris::_os_thread_count); | |
| 935 } | |
| 936 | |
| 937 if (UseDetachedThreads) { | |
| 938 thr_exit(NULL); | |
| 939 ShouldNotReachHere(); | |
| 940 } | |
| 941 return NULL; | |
| 942 } | |
| 943 | |
| 944 static OSThread* create_os_thread(Thread* thread, thread_t thread_id) { | |
| 945 // Allocate the OSThread object | |
| 946 OSThread* osthread = new OSThread(NULL, NULL); | |
| 947 if (osthread == NULL) return NULL; | |
| 948 | |
| 949 // Store info on the Solaris thread into the OSThread | |
| 950 osthread->set_thread_id(thread_id); | |
| 951 osthread->set_lwp_id(_lwp_self()); | |
| 952 thread->_schedctl = (void *) schedctl_init () ; | |
| 953 | |
| 954 if (UseNUMA) { | |
| 955 int lgrp_id = os::numa_get_group_id(); | |
| 956 if (lgrp_id != -1) { | |
| 957 thread->set_lgrp_id(lgrp_id); | |
| 958 } | |
| 959 } | |
| 960 | |
| 961 if ( ThreadPriorityVerbose ) { | |
| 962 tty->print_cr("In create_os_thread, Thread " INTPTR_FORMAT ", LWP is " INTPTR_FORMAT "\n", | |
| 963 osthread->thread_id(), osthread->lwp_id() ); | |
| 964 } | |
| 965 | |
| 966 // Initial thread state is INITIALIZED, not SUSPENDED | |
| 967 osthread->set_state(INITIALIZED); | |
| 968 | |
| 969 return osthread; | |
| 970 } | |
| 971 | |
| 972 void os::Solaris::hotspot_sigmask(Thread* thread) { | |
| 973 | |
| 974 //Save caller's signal mask | |
| 975 sigset_t sigmask; | |
| 976 thr_sigsetmask(SIG_SETMASK, NULL, &sigmask); | |
| 977 OSThread *osthread = thread->osthread(); | |
| 978 osthread->set_caller_sigmask(sigmask); | |
| 979 | |
| 980 thr_sigsetmask(SIG_UNBLOCK, os::Solaris::unblocked_signals(), NULL); | |
| 981 if (!ReduceSignalUsage) { | |
| 982 if (thread->is_VM_thread()) { | |
| 983 // Only the VM thread handles BREAK_SIGNAL ... | |
| 984 thr_sigsetmask(SIG_UNBLOCK, vm_signals(), NULL); | |
| 985 } else { | |
| 986 // ... all other threads block BREAK_SIGNAL | |
| 987 assert(!sigismember(vm_signals(), SIGINT), "SIGINT should not be blocked"); | |
| 988 thr_sigsetmask(SIG_BLOCK, vm_signals(), NULL); | |
| 989 } | |
| 990 } | |
| 991 } | |
| 992 | |
| 993 bool os::create_attached_thread(JavaThread* thread) { | |
| 994 #ifdef ASSERT | |
| 995 thread->verify_not_published(); | |
| 996 #endif | |
| 997 OSThread* osthread = create_os_thread(thread, thr_self()); | |
| 998 if (osthread == NULL) { | |
| 999 return false; | |
| 1000 } | |
| 1001 | |
| 1002 // Initial thread state is RUNNABLE | |
| 1003 osthread->set_state(RUNNABLE); | |
| 1004 thread->set_osthread(osthread); | |
| 1005 | |
| 1006 // initialize signal mask for this thread | |
| 1007 // and save the caller's signal mask | |
| 1008 os::Solaris::hotspot_sigmask(thread); | |
| 1009 | |
| 1010 return true; | |
| 1011 } | |
| 1012 | |
| 1013 bool os::create_main_thread(JavaThread* thread) { | |
| 1014 #ifdef ASSERT | |
| 1015 thread->verify_not_published(); | |
| 1016 #endif | |
| 1017 if (_starting_thread == NULL) { | |
| 1018 _starting_thread = create_os_thread(thread, main_thread); | |
| 1019 if (_starting_thread == NULL) { | |
| 1020 return false; | |
| 1021 } | |
| 1022 } | |
| 1023 | |
| 1024 // The primodial thread is runnable from the start | |
| 1025 _starting_thread->set_state(RUNNABLE); | |
| 1026 | |
| 1027 thread->set_osthread(_starting_thread); | |
| 1028 | |
| 1029 // initialize signal mask for this thread | |
| 1030 // and save the caller's signal mask | |
| 1031 os::Solaris::hotspot_sigmask(thread); | |
| 1032 | |
| 1033 return true; | |
| 1034 } | |
| 1035 | |
| 1036 // _T2_libthread is true if we believe we are running with the newer | |
| 1037 // SunSoft lwp/libthread.so (2.8 patch, 2.9 default) | |
| 1038 bool os::Solaris::_T2_libthread = false; | |
| 1039 | |
| 1040 bool os::create_thread(Thread* thread, ThreadType thr_type, size_t stack_size) { | |
| 1041 // Allocate the OSThread object | |
| 1042 OSThread* osthread = new OSThread(NULL, NULL); | |
| 1043 if (osthread == NULL) { | |
| 1044 return false; | |
| 1045 } | |
| 1046 | |
| 1047 if ( ThreadPriorityVerbose ) { | |
| 1048 char *thrtyp; | |
| 1049 switch ( thr_type ) { | |
| 1050 case vm_thread: | |
| 1051 thrtyp = (char *)"vm"; | |
| 1052 break; | |
| 1053 case cgc_thread: | |
| 1054 thrtyp = (char *)"cgc"; | |
| 1055 break; | |
| 1056 case pgc_thread: | |
| 1057 thrtyp = (char *)"pgc"; | |
| 1058 break; | |
| 1059 case java_thread: | |
| 1060 thrtyp = (char *)"java"; | |
| 1061 break; | |
| 1062 case compiler_thread: | |
| 1063 thrtyp = (char *)"compiler"; | |
| 1064 break; | |
| 1065 case watcher_thread: | |
| 1066 thrtyp = (char *)"watcher"; | |
| 1067 break; | |
| 1068 default: | |
| 1069 thrtyp = (char *)"unknown"; | |
| 1070 break; | |
| 1071 } | |
| 1072 tty->print_cr("In create_thread, creating a %s thread\n", thrtyp); | |
| 1073 } | |
| 1074 | |
| 1075 // Calculate stack size if it's not specified by caller. | |
| 1076 if (stack_size == 0) { | |
| 1077 // The default stack size 1M (2M for LP64). | |
| 1078 stack_size = (BytesPerWord >> 2) * K * K; | |
| 1079 | |
| 1080 switch (thr_type) { | |
| 1081 case os::java_thread: | |
| 1082 // Java threads use ThreadStackSize which default value can be changed with the flag -Xss | |
| 1083 if (JavaThread::stack_size_at_create() > 0) stack_size = JavaThread::stack_size_at_create(); | |
| 1084 break; | |
| 1085 case os::compiler_thread: | |
| 1086 if (CompilerThreadStackSize > 0) { | |
| 1087 stack_size = (size_t)(CompilerThreadStackSize * K); | |
| 1088 break; | |
| 1089 } // else fall through: | |
| 1090 // use VMThreadStackSize if CompilerThreadStackSize is not defined | |
| 1091 case os::vm_thread: | |
| 1092 case os::pgc_thread: | |
| 1093 case os::cgc_thread: | |
| 1094 case os::watcher_thread: | |
| 1095 if (VMThreadStackSize > 0) stack_size = (size_t)(VMThreadStackSize * K); | |
| 1096 break; | |
| 1097 } | |
| 1098 } | |
| 1099 stack_size = MAX2(stack_size, os::Solaris::min_stack_allowed); | |
| 1100 | |
| 1101 // Initial state is ALLOCATED but not INITIALIZED | |
| 1102 osthread->set_state(ALLOCATED); | |
| 1103 | |
| 1104 if (os::Solaris::_os_thread_count > os::Solaris::_os_thread_limit) { | |
| 1105 // We got lots of threads. Check if we still have some address space left. | |
| 1106 // Need to be at least 5Mb of unreserved address space. We do check by | |
| 1107 // trying to reserve some. | |
| 1108 const size_t VirtualMemoryBangSize = 20*K*K; | |
| 1109 char* mem = os::reserve_memory(VirtualMemoryBangSize); | |
| 1110 if (mem == NULL) { | |
| 1111 delete osthread; | |
| 1112 return false; | |
| 1113 } else { | |
| 1114 // Release the memory again | |
| 1115 os::release_memory(mem, VirtualMemoryBangSize); | |
| 1116 } | |
| 1117 } | |
| 1118 | |
| 1119 // Setup osthread because the child thread may need it. | |
| 1120 thread->set_osthread(osthread); | |
| 1121 | |
| 1122 // Create the Solaris thread | |
| 1123 // explicit THR_BOUND for T2_libthread case in case | |
| 1124 // that assumption is not accurate, but our alternate signal stack | |
| 1125 // handling is based on it which must have bound threads | |
| 1126 thread_t tid = 0; | |
| 1127 long flags = (UseDetachedThreads ? THR_DETACHED : 0) | THR_SUSPENDED | |
| 1128 | ((UseBoundThreads || os::Solaris::T2_libthread() || | |
| 1129 (thr_type == vm_thread) || | |
| 1130 (thr_type == cgc_thread) || | |
| 1131 (thr_type == pgc_thread) || | |
| 1132 (thr_type == compiler_thread && BackgroundCompilation)) ? | |
| 1133 THR_BOUND : 0); | |
| 1134 int status; | |
| 1135 | |
| 1136 // 4376845 -- libthread/kernel don't provide enough LWPs to utilize all CPUs. | |
| 1137 // | |
| 1138 // On multiprocessors systems, libthread sometimes under-provisions our | |
| 1139 // process with LWPs. On a 30-way systems, for instance, we could have | |
| 1140 // 50 user-level threads in ready state and only 2 or 3 LWPs assigned | |
| 1141 // to our process. This can result in under utilization of PEs. | |
| 1142 // I suspect the problem is related to libthread's LWP | |
| 1143 // pool management and to the kernel's SIGBLOCKING "last LWP parked" | |
| 1144 // upcall policy. | |
| 1145 // | |
| 1146 // The following code is palliative -- it attempts to ensure that our | |
| 1147 // process has sufficient LWPs to take advantage of multiple PEs. | |
| 1148 // Proper long-term cures include using user-level threads bound to LWPs | |
| 1149 // (THR_BOUND) or using LWP-based synchronization. Note that there is a | |
| 1150 // slight timing window with respect to sampling _os_thread_count, but | |
| 1151 // the race is benign. Also, we should periodically recompute | |
| 1152 // _processors_online as the min of SC_NPROCESSORS_ONLN and the | |
| 1153 // the number of PEs in our partition. You might be tempted to use | |
| 1154 // THR_NEW_LWP here, but I'd recommend against it as that could | |
| 1155 // result in undesirable growth of the libthread's LWP pool. | |
| 1156 // The fix below isn't sufficient; for instance, it doesn't take into count | |
| 1157 // LWPs parked on IO. It does, however, help certain CPU-bound benchmarks. | |
| 1158 // | |
| 1159 // Some pathologies this scheme doesn't handle: | |
| 1160 // * Threads can block, releasing the LWPs. The LWPs can age out. | |
| 1161 // When a large number of threads become ready again there aren't | |
| 1162 // enough LWPs available to service them. This can occur when the | |
| 1163 // number of ready threads oscillates. | |
| 1164 // * LWPs/Threads park on IO, thus taking the LWP out of circulation. | |
| 1165 // | |
| 1166 // Finally, we should call thr_setconcurrency() periodically to refresh | |
| 1167 // the LWP pool and thwart the LWP age-out mechanism. | |
| 1168 // The "+3" term provides a little slop -- we want to slightly overprovision. | |
| 1169 | |
| 1170 if (AdjustConcurrency && os::Solaris::_os_thread_count < (_processors_online+3)) { | |
| 1171 if (!(flags & THR_BOUND)) { | |
| 1172 thr_setconcurrency (os::Solaris::_os_thread_count); // avoid starvation | |
| 1173 } | |
| 1174 } | |
| 1175 // Although this doesn't hurt, we should warn of undefined behavior | |
| 1176 // when using unbound T1 threads with schedctl(). This should never | |
| 1177 // happen, as the compiler and VM threads are always created bound | |
| 1178 DEBUG_ONLY( | |
| 1179 if ((VMThreadHintNoPreempt || CompilerThreadHintNoPreempt) && | |
| 1180 (!os::Solaris::T2_libthread() && (!(flags & THR_BOUND))) && | |
| 1181 ((thr_type == vm_thread) || (thr_type == cgc_thread) || | |
| 1182 (thr_type == pgc_thread) || (thr_type == compiler_thread && BackgroundCompilation))) { | |
| 1183 warning("schedctl behavior undefined when Compiler/VM/GC Threads are Unbound"); | |
| 1184 } | |
| 1185 ); | |
| 1186 | |
| 1187 | |
| 1188 // Mark that we don't have an lwp or thread id yet. | |
| 1189 // In case we attempt to set the priority before the thread starts. | |
| 1190 osthread->set_lwp_id(-1); | |
| 1191 osthread->set_thread_id(-1); | |
| 1192 | |
| 1193 status = thr_create(NULL, stack_size, java_start, thread, flags, &tid); | |
| 1194 if (status != 0) { | |
| 1195 if (PrintMiscellaneous && (Verbose || WizardMode)) { | |
| 1196 perror("os::create_thread"); | |
| 1197 } | |
| 1198 thread->set_osthread(NULL); | |
| 1199 // Need to clean up stuff we've allocated so far | |
| 1200 delete osthread; | |
| 1201 return false; | |
| 1202 } | |
| 1203 | |
| 1204 Atomic::inc(&os::Solaris::_os_thread_count); | |
| 1205 | |
| 1206 // Store info on the Solaris thread into the OSThread | |
| 1207 osthread->set_thread_id(tid); | |
| 1208 | |
| 1209 // Remember that we created this thread so we can set priority on it | |
| 1210 osthread->set_vm_created(); | |
| 1211 | |
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1212 // Set the default thread priority. If using bound threads, setting |
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1213 // lwp priority will be delayed until thread start. |
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1214 set_native_priority(thread, |
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1215 DefaultThreadPriority == -1 ? |
| 0 | 1216 java_to_os_priority[NormPriority] : |
| 1217 DefaultThreadPriority); | |
| 1218 | |
| 1219 // Initial thread state is INITIALIZED, not SUSPENDED | |
| 1220 osthread->set_state(INITIALIZED); | |
| 1221 | |
| 1222 // The thread is returned suspended (in state INITIALIZED), and is started higher up in the call chain | |
| 1223 return true; | |
| 1224 } | |
| 1225 | |
| 1226 /* defined for >= Solaris 10. This allows builds on earlier versions | |
| 1227 * of Solaris to take advantage of the newly reserved Solaris JVM signals | |
| 1228 * With SIGJVM1, SIGJVM2, INTERRUPT_SIGNAL is SIGJVM1, ASYNC_SIGNAL is SIGJVM2 | |
| 1229 * and -XX:+UseAltSigs does nothing since these should have no conflict | |
| 1230 */ | |
| 1231 #if !defined(SIGJVM1) | |
| 1232 #define SIGJVM1 39 | |
| 1233 #define SIGJVM2 40 | |
| 1234 #endif | |
| 1235 | |
| 1236 debug_only(static bool signal_sets_initialized = false); | |
| 1237 static sigset_t unblocked_sigs, vm_sigs, allowdebug_blocked_sigs; | |
| 1238 int os::Solaris::_SIGinterrupt = INTERRUPT_SIGNAL; | |
| 1239 int os::Solaris::_SIGasync = ASYNC_SIGNAL; | |
| 1240 | |
| 1241 bool os::Solaris::is_sig_ignored(int sig) { | |
| 1242 struct sigaction oact; | |
| 1243 sigaction(sig, (struct sigaction*)NULL, &oact); | |
| 1244 void* ohlr = oact.sa_sigaction ? CAST_FROM_FN_PTR(void*, oact.sa_sigaction) | |
| 1245 : CAST_FROM_FN_PTR(void*, oact.sa_handler); | |
| 1246 if (ohlr == CAST_FROM_FN_PTR(void*, SIG_IGN)) | |
| 1247 return true; | |
| 1248 else | |
| 1249 return false; | |
| 1250 } | |
| 1251 | |
| 1252 // Note: SIGRTMIN is a macro that calls sysconf() so it will | |
| 1253 // dynamically detect SIGRTMIN value for the system at runtime, not buildtime | |
| 1254 static bool isJVM1available() { | |
| 1255 return SIGJVM1 < SIGRTMIN; | |
| 1256 } | |
| 1257 | |
| 1258 void os::Solaris::signal_sets_init() { | |
| 1259 // Should also have an assertion stating we are still single-threaded. | |
| 1260 assert(!signal_sets_initialized, "Already initialized"); | |
| 1261 // Fill in signals that are necessarily unblocked for all threads in | |
| 1262 // the VM. Currently, we unblock the following signals: | |
| 1263 // SHUTDOWN{1,2,3}_SIGNAL: for shutdown hooks support (unless over-ridden | |
| 1264 // by -Xrs (=ReduceSignalUsage)); | |
| 1265 // BREAK_SIGNAL which is unblocked only by the VM thread and blocked by all | |
| 1266 // other threads. The "ReduceSignalUsage" boolean tells us not to alter | |
| 1267 // the dispositions or masks wrt these signals. | |
| 1268 // Programs embedding the VM that want to use the above signals for their | |
| 1269 // own purposes must, at this time, use the "-Xrs" option to prevent | |
| 1270 // interference with shutdown hooks and BREAK_SIGNAL thread dumping. | |
| 1271 // (See bug 4345157, and other related bugs). | |
| 1272 // In reality, though, unblocking these signals is really a nop, since | |
| 1273 // these signals are not blocked by default. | |
| 1274 sigemptyset(&unblocked_sigs); | |
| 1275 sigemptyset(&allowdebug_blocked_sigs); | |
| 1276 sigaddset(&unblocked_sigs, SIGILL); | |
| 1277 sigaddset(&unblocked_sigs, SIGSEGV); | |
| 1278 sigaddset(&unblocked_sigs, SIGBUS); | |
| 1279 sigaddset(&unblocked_sigs, SIGFPE); | |
| 1280 | |
| 1281 if (isJVM1available) { | |
| 1282 os::Solaris::set_SIGinterrupt(SIGJVM1); | |
| 1283 os::Solaris::set_SIGasync(SIGJVM2); | |
| 1284 } else if (UseAltSigs) { | |
| 1285 os::Solaris::set_SIGinterrupt(ALT_INTERRUPT_SIGNAL); | |
| 1286 os::Solaris::set_SIGasync(ALT_ASYNC_SIGNAL); | |
| 1287 } else { | |
| 1288 os::Solaris::set_SIGinterrupt(INTERRUPT_SIGNAL); | |
| 1289 os::Solaris::set_SIGasync(ASYNC_SIGNAL); | |
| 1290 } | |
| 1291 | |
| 1292 sigaddset(&unblocked_sigs, os::Solaris::SIGinterrupt()); | |
| 1293 sigaddset(&unblocked_sigs, os::Solaris::SIGasync()); | |
| 1294 | |
| 1295 if (!ReduceSignalUsage) { | |
| 1296 if (!os::Solaris::is_sig_ignored(SHUTDOWN1_SIGNAL)) { | |
| 1297 sigaddset(&unblocked_sigs, SHUTDOWN1_SIGNAL); | |
| 1298 sigaddset(&allowdebug_blocked_sigs, SHUTDOWN1_SIGNAL); | |
| 1299 } | |
| 1300 if (!os::Solaris::is_sig_ignored(SHUTDOWN2_SIGNAL)) { | |
| 1301 sigaddset(&unblocked_sigs, SHUTDOWN2_SIGNAL); | |
| 1302 sigaddset(&allowdebug_blocked_sigs, SHUTDOWN2_SIGNAL); | |
| 1303 } | |
| 1304 if (!os::Solaris::is_sig_ignored(SHUTDOWN3_SIGNAL)) { | |
| 1305 sigaddset(&unblocked_sigs, SHUTDOWN3_SIGNAL); | |
| 1306 sigaddset(&allowdebug_blocked_sigs, SHUTDOWN3_SIGNAL); | |
| 1307 } | |
| 1308 } | |
| 1309 // Fill in signals that are blocked by all but the VM thread. | |
| 1310 sigemptyset(&vm_sigs); | |
| 1311 if (!ReduceSignalUsage) | |
| 1312 sigaddset(&vm_sigs, BREAK_SIGNAL); | |
| 1313 debug_only(signal_sets_initialized = true); | |
| 1314 | |
| 1315 // For diagnostics only used in run_periodic_checks | |
| 1316 sigemptyset(&check_signal_done); | |
| 1317 } | |
| 1318 | |
| 1319 // These are signals that are unblocked while a thread is running Java. | |
| 1320 // (For some reason, they get blocked by default.) | |
| 1321 sigset_t* os::Solaris::unblocked_signals() { | |
| 1322 assert(signal_sets_initialized, "Not initialized"); | |
| 1323 return &unblocked_sigs; | |
| 1324 } | |
| 1325 | |
| 1326 // These are the signals that are blocked while a (non-VM) thread is | |
| 1327 // running Java. Only the VM thread handles these signals. | |
| 1328 sigset_t* os::Solaris::vm_signals() { | |
| 1329 assert(signal_sets_initialized, "Not initialized"); | |
| 1330 return &vm_sigs; | |
| 1331 } | |
| 1332 | |
| 1333 // These are signals that are blocked during cond_wait to allow debugger in | |
| 1334 sigset_t* os::Solaris::allowdebug_blocked_signals() { | |
| 1335 assert(signal_sets_initialized, "Not initialized"); | |
| 1336 return &allowdebug_blocked_sigs; | |
| 1337 } | |
| 1338 | |
|
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1339 |
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1340 void _handle_uncaught_cxx_exception() { |
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1341 VMError err("An uncaught C++ exception"); |
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1342 err.report_and_die(); |
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1343 } |
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1344 |
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1345 |
| 0 | 1346 // First crack at OS-specific initialization, from inside the new thread. |
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1347 void os::initialize_thread(Thread* thr) { |
| 0 | 1348 int r = thr_main() ; |
| 1349 guarantee (r == 0 || r == 1, "CR6501650 or CR6493689") ; | |
| 1350 if (r) { | |
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1351 JavaThread* jt = (JavaThread *)thr; |
| 0 | 1352 assert(jt != NULL,"Sanity check"); |
| 1353 size_t stack_size; | |
| 1354 address base = jt->stack_base(); | |
| 1355 if (Arguments::created_by_java_launcher()) { | |
| 1356 // Use 2MB to allow for Solaris 7 64 bit mode. | |
| 1357 stack_size = JavaThread::stack_size_at_create() == 0 | |
| 1358 ? 2048*K : JavaThread::stack_size_at_create(); | |
| 1359 | |
| 1360 // There are rare cases when we may have already used more than | |
| 1361 // the basic stack size allotment before this method is invoked. | |
| 1362 // Attempt to allow for a normally sized java_stack. | |
| 1363 size_t current_stack_offset = (size_t)(base - (address)&stack_size); | |
| 1364 stack_size += ReservedSpace::page_align_size_down(current_stack_offset); | |
| 1365 } else { | |
| 1366 // 6269555: If we were not created by a Java launcher, i.e. if we are | |
| 1367 // running embedded in a native application, treat the primordial thread | |
| 1368 // as much like a native attached thread as possible. This means using | |
| 1369 // the current stack size from thr_stksegment(), unless it is too large | |
| 1370 // to reliably setup guard pages. A reasonable max size is 8MB. | |
| 1371 size_t current_size = current_stack_size(); | |
| 1372 // This should never happen, but just in case.... | |
| 1373 if (current_size == 0) current_size = 2 * K * K; | |
| 1374 stack_size = current_size > (8 * K * K) ? (8 * K * K) : current_size; | |
| 1375 } | |
| 1376 address bottom = (address)align_size_up((intptr_t)(base - stack_size), os::vm_page_size());; | |
| 1377 stack_size = (size_t)(base - bottom); | |
| 1378 | |
| 1379 assert(stack_size > 0, "Stack size calculation problem"); | |
| 1380 | |
| 1381 if (stack_size > jt->stack_size()) { | |
| 1382 NOT_PRODUCT( | |
| 1383 struct rlimit limits; | |
| 1384 getrlimit(RLIMIT_STACK, &limits); | |
| 1385 size_t size = adjust_stack_size(base, (size_t)limits.rlim_cur); | |
| 1386 assert(size >= jt->stack_size(), "Stack size problem in main thread"); | |
| 1387 ) | |
| 1388 tty->print_cr( | |
| 1389 "Stack size of %d Kb exceeds current limit of %d Kb.\n" | |
| 1390 "(Stack sizes are rounded up to a multiple of the system page size.)\n" | |
| 1391 "See limit(1) to increase the stack size limit.", | |
| 1392 stack_size / K, jt->stack_size() / K); | |
| 1393 vm_exit(1); | |
| 1394 } | |
| 1395 assert(jt->stack_size() >= stack_size, | |
| 1396 "Attempt to map more stack than was allocated"); | |
| 1397 jt->set_stack_size(stack_size); | |
| 1398 } | |
| 1399 | |
| 1400 // 5/22/01: Right now alternate signal stacks do not handle | |
| 1401 // throwing stack overflow exceptions, see bug 4463178 | |
| 1402 // Until a fix is found for this, T2 will NOT imply alternate signal | |
| 1403 // stacks. | |
| 1404 // If using T2 libthread threads, install an alternate signal stack. | |
| 1405 // Because alternate stacks associate with LWPs on Solaris, | |
| 1406 // see sigaltstack(2), if using UNBOUND threads, or if UseBoundThreads | |
| 1407 // we prefer to explicitly stack bang. | |
| 1408 // If not using T2 libthread, but using UseBoundThreads any threads | |
| 1409 // (primordial thread, jni_attachCurrentThread) we do not create, | |
| 1410 // probably are not bound, therefore they can not have an alternate | |
| 1411 // signal stack. Since our stack banging code is generated and | |
| 1412 // is shared across threads, all threads must be bound to allow | |
| 1413 // using alternate signal stacks. The alternative is to interpose | |
| 1414 // on _lwp_create to associate an alt sig stack with each LWP, | |
| 1415 // and this could be a problem when the JVM is embedded. | |
| 1416 // We would prefer to use alternate signal stacks with T2 | |
| 1417 // Since there is currently no accurate way to detect T2 | |
| 1418 // we do not. Assuming T2 when running T1 causes sig 11s or assertions | |
| 1419 // on installing alternate signal stacks | |
| 1420 | |
| 1421 | |
| 1422 // 05/09/03: removed alternate signal stack support for Solaris | |
| 1423 // The alternate signal stack mechanism is no longer needed to | |
| 1424 // handle stack overflow. This is now handled by allocating | |
| 1425 // guard pages (red zone) and stackbanging. | |
| 1426 // Initially the alternate signal stack mechanism was removed because | |
| 1427 // it did not work with T1 llibthread. Alternate | |
| 1428 // signal stacks MUST have all threads bound to lwps. Applications | |
| 1429 // can create their own threads and attach them without their being | |
| 1430 // bound under T1. This is frequently the case for the primordial thread. | |
| 1431 // If we were ever to reenable this mechanism we would need to | |
| 1432 // use the dynamic check for T2 libthread. | |
| 1433 | |
| 1434 os::Solaris::init_thread_fpu_state(); | |
|
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1435 std::set_terminate(_handle_uncaught_cxx_exception); |
| 0 | 1436 } |
| 1437 | |
| 1438 | |
| 1439 | |
| 1440 // Free Solaris resources related to the OSThread | |
| 1441 void os::free_thread(OSThread* osthread) { | |
| 1442 assert(osthread != NULL, "os::free_thread but osthread not set"); | |
| 1443 | |
| 1444 | |
| 1445 // We are told to free resources of the argument thread, | |
| 1446 // but we can only really operate on the current thread. | |
| 1447 // The main thread must take the VMThread down synchronously | |
| 1448 // before the main thread exits and frees up CodeHeap | |
| 1449 guarantee((Thread::current()->osthread() == osthread | |
| 1450 || (osthread == VMThread::vm_thread()->osthread())), "os::free_thread but not current thread"); | |
| 1451 if (Thread::current()->osthread() == osthread) { | |
| 1452 // Restore caller's signal mask | |
| 1453 sigset_t sigmask = osthread->caller_sigmask(); | |
| 1454 thr_sigsetmask(SIG_SETMASK, &sigmask, NULL); | |
| 1455 } | |
| 1456 delete osthread; | |
| 1457 } | |
| 1458 | |
| 1459 void os::pd_start_thread(Thread* thread) { | |
| 1460 int status = thr_continue(thread->osthread()->thread_id()); | |
| 1461 assert_status(status == 0, status, "thr_continue failed"); | |
| 1462 } | |
| 1463 | |
| 1464 | |
| 1465 intx os::current_thread_id() { | |
| 1466 return (intx)thr_self(); | |
| 1467 } | |
| 1468 | |
| 1469 static pid_t _initial_pid = 0; | |
| 1470 | |
| 1471 int os::current_process_id() { | |
| 1472 return (int)(_initial_pid ? _initial_pid : getpid()); | |
| 1473 } | |
| 1474 | |
| 1475 int os::allocate_thread_local_storage() { | |
| 1476 // %%% in Win32 this allocates a memory segment pointed to by a | |
| 1477 // register. Dan Stein can implement a similar feature in | |
| 1478 // Solaris. Alternatively, the VM can do the same thing | |
| 1479 // explicitly: malloc some storage and keep the pointer in a | |
| 1480 // register (which is part of the thread's context) (or keep it | |
| 1481 // in TLS). | |
| 1482 // %%% In current versions of Solaris, thr_self and TSD can | |
| 1483 // be accessed via short sequences of displaced indirections. | |
| 1484 // The value of thr_self is available as %g7(36). | |
| 1485 // The value of thr_getspecific(k) is stored in %g7(12)(4)(k*4-4), | |
| 1486 // assuming that the current thread already has a value bound to k. | |
| 1487 // It may be worth experimenting with such access patterns, | |
| 1488 // and later having the parameters formally exported from a Solaris | |
| 1489 // interface. I think, however, that it will be faster to | |
| 1490 // maintain the invariant that %g2 always contains the | |
| 1491 // JavaThread in Java code, and have stubs simply | |
| 1492 // treat %g2 as a caller-save register, preserving it in a %lN. | |
| 1493 thread_key_t tk; | |
| 1494 if (thr_keycreate( &tk, NULL ) ) | |
|
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1495 fatal(err_msg("os::allocate_thread_local_storage: thr_keycreate failed " |
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1496 "(%s)", strerror(errno))); |
| 0 | 1497 return int(tk); |
| 1498 } | |
| 1499 | |
| 1500 void os::free_thread_local_storage(int index) { | |
| 1501 // %%% don't think we need anything here | |
| 1502 // if ( pthread_key_delete((pthread_key_t) tk) ) | |
| 1503 // fatal("os::free_thread_local_storage: pthread_key_delete failed"); | |
| 1504 } | |
| 1505 | |
| 1506 #define SMALLINT 32 // libthread allocate for tsd_common is a version specific | |
| 1507 // small number - point is NO swap space available | |
| 1508 void os::thread_local_storage_at_put(int index, void* value) { | |
| 1509 // %%% this is used only in threadLocalStorage.cpp | |
| 1510 if (thr_setspecific((thread_key_t)index, value)) { | |
| 1511 if (errno == ENOMEM) { | |
|
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1512 vm_exit_out_of_memory(SMALLINT, OOM_MALLOC_ERROR, |
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1513 "thr_setspecific: out of swap space"); |
| 0 | 1514 } else { |
|
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1515 fatal(err_msg("os::thread_local_storage_at_put: thr_setspecific failed " |
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1516 "(%s)", strerror(errno))); |
| 0 | 1517 } |
| 1518 } else { | |
| 1519 ThreadLocalStorage::set_thread_in_slot ((Thread *) value) ; | |
| 1520 } | |
| 1521 } | |
| 1522 | |
| 1523 // This function could be called before TLS is initialized, for example, when | |
| 1524 // VM receives an async signal or when VM causes a fatal error during | |
| 1525 // initialization. Return NULL if thr_getspecific() fails. | |
| 1526 void* os::thread_local_storage_at(int index) { | |
| 1527 // %%% this is used only in threadLocalStorage.cpp | |
| 1528 void* r = NULL; | |
| 1529 return thr_getspecific((thread_key_t)index, &r) != 0 ? NULL : r; | |
| 1530 } | |
| 1531 | |
| 1532 | |
|
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1533 // gethrtime() should be monotonic according to the documentation, |
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1534 // but some virtualized platforms are known to break this guarantee. |
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1535 // getTimeNanos() must be guaranteed not to move backwards, so we |
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1536 // are forced to add a check here. |
| 0 | 1537 inline hrtime_t getTimeNanos() { |
|
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1538 const hrtime_t now = gethrtime(); |
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1539 const hrtime_t prev = max_hrtime; |
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1540 if (now <= prev) { |
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1541 return prev; // same or retrograde time; |
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1542 } |
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1543 const hrtime_t obsv = Atomic::cmpxchg(now, (volatile jlong*)&max_hrtime, prev); |
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1544 assert(obsv >= prev, "invariant"); // Monotonicity |
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1545 // If the CAS succeeded then we're done and return "now". |
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1546 // If the CAS failed and the observed value "obsv" is >= now then |
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1547 // we should return "obsv". If the CAS failed and now > obsv > prv then |
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1548 // some other thread raced this thread and installed a new value, in which case |
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1549 // we could either (a) retry the entire operation, (b) retry trying to install now |
|
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1550 // or (c) just return obsv. We use (c). No loop is required although in some cases |
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1551 // we might discard a higher "now" value in deference to a slightly lower but freshly |
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1552 // installed obsv value. That's entirely benign -- it admits no new orderings compared |
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1553 // to (a) or (b) -- and greatly reduces coherence traffic. |
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1554 // We might also condition (c) on the magnitude of the delta between obsv and now. |
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1555 // Avoiding excessive CAS operations to hot RW locations is critical. |
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1556 // See https://blogs.oracle.com/dave/entry/cas_and_cache_trivia_invalidate |
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1557 return (prev == obsv) ? now : obsv; |
| 0 | 1558 } |
| 1559 | |
| 1560 // Time since start-up in seconds to a fine granularity. | |
| 1561 // Used by VMSelfDestructTimer and the MemProfiler. | |
| 1562 double os::elapsedTime() { | |
| 1563 return (double)(getTimeNanos() - first_hrtime) / (double)hrtime_hz; | |
| 1564 } | |
| 1565 | |
| 1566 jlong os::elapsed_counter() { | |
| 1567 return (jlong)(getTimeNanos() - first_hrtime); | |
| 1568 } | |
| 1569 | |
| 1570 jlong os::elapsed_frequency() { | |
| 1571 return hrtime_hz; | |
| 1572 } | |
| 1573 | |
| 1574 // Return the real, user, and system times in seconds from an | |
| 1575 // arbitrary fixed point in the past. | |
| 1576 bool os::getTimesSecs(double* process_real_time, | |
| 1577 double* process_user_time, | |
| 1578 double* process_system_time) { | |
| 1579 struct tms ticks; | |
| 1580 clock_t real_ticks = times(&ticks); | |
| 1581 | |
| 1582 if (real_ticks == (clock_t) (-1)) { | |
| 1583 return false; | |
| 1584 } else { | |
| 1585 double ticks_per_second = (double) clock_tics_per_sec; | |
| 1586 *process_user_time = ((double) ticks.tms_utime) / ticks_per_second; | |
| 1587 *process_system_time = ((double) ticks.tms_stime) / ticks_per_second; | |
| 1588 // For consistency return the real time from getTimeNanos() | |
| 1589 // converted to seconds. | |
| 1590 *process_real_time = ((double) getTimeNanos()) / ((double) NANOUNITS); | |
| 1591 | |
| 1592 return true; | |
| 1593 } | |
| 1594 } | |
| 1595 | |
|
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1596 bool os::supports_vtime() { return true; } |
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1597 |
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1598 bool os::enable_vtime() { |
|
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1599 int fd = ::open("/proc/self/ctl", O_WRONLY); |
|
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1600 if (fd == -1) |
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1601 return false; |
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|
1602 |
|
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|
1603 long cmd[] = { PCSET, PR_MSACCT }; |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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diff
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|
1604 int res = ::write(fd, cmd, sizeof(long) * 2); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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|
1605 ::close(fd); |
|
342
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6711316: Open source the Garbage-First garbage collector
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|
1606 if (res != sizeof(long) * 2) |
|
37f87013dfd8
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diff
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|
1607 return false; |
|
37f87013dfd8
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diff
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|
1608 |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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diff
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|
1609 return true; |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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diff
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|
1610 } |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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diff
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|
1611 |
|
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6711316: Open source the Garbage-First garbage collector
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|
1612 bool os::vtime_enabled() { |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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|
1613 int fd = ::open("/proc/self/status", O_RDONLY); |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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|
1614 if (fd == -1) |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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diff
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|
1615 return false; |
|
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diff
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|
1616 |
|
37f87013dfd8
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diff
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|
1617 pstatus_t status; |
|
1980
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6348631: remove the use of the HPI library from Hotspot
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diff
changeset
|
1618 int res = os::read(fd, (void*) &status, sizeof(pstatus_t)); |
|
828eafbd85cc
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|
1619 ::close(fd); |
|
342
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diff
changeset
|
1620 if (res != sizeof(pstatus_t)) |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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diff
changeset
|
1621 return false; |
|
37f87013dfd8
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diff
changeset
|
1622 |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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|
1623 return status.pr_flags & PR_MSACCT; |
|
37f87013dfd8
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diff
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|
1624 } |
|
37f87013dfd8
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144
diff
changeset
|
1625 |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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diff
changeset
|
1626 double os::elapsedVTime() { |
|
37f87013dfd8
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144
diff
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|
1627 return (double)gethrvtime() / (double)hrtime_hz; |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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diff
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|
1628 } |
|
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diff
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|
1629 |
| 0 | 1630 // Used internally for comparisons only |
| 1631 // getTimeMillis guaranteed to not move backwards on Solaris | |
| 1632 jlong getTimeMillis() { | |
| 1633 jlong nanotime = getTimeNanos(); | |
|
4712
e7dead7e90af
7117303: VM uses non-monotonic time source and complains that it is non-monotonic
johnc
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4082
diff
changeset
|
1634 return (jlong)(nanotime / NANOSECS_PER_MILLISEC); |
| 0 | 1635 } |
| 1636 | |
| 61 | 1637 // Must return millis since Jan 1 1970 for JVM_CurrentTimeMillis |
| 1638 jlong os::javaTimeMillis() { | |
| 0 | 1639 timeval t; |
| 1640 if (gettimeofday( &t, NULL) == -1) | |
|
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
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1353
diff
changeset
|
1641 fatal(err_msg("os::javaTimeMillis: gettimeofday (%s)", strerror(errno))); |
| 0 | 1642 return jlong(t.tv_sec) * 1000 + jlong(t.tv_usec) / 1000; |
| 1643 } | |
| 1644 | |
| 1645 jlong os::javaTimeNanos() { | |
| 1646 return (jlong)getTimeNanos(); | |
| 1647 } | |
| 1648 | |
| 1649 void os::javaTimeNanos_info(jvmtiTimerInfo *info_ptr) { | |
| 1650 info_ptr->max_value = ALL_64_BITS; // gethrtime() uses all 64 bits | |
| 1651 info_ptr->may_skip_backward = false; // not subject to resetting or drifting | |
| 1652 info_ptr->may_skip_forward = false; // not subject to resetting or drifting | |
| 1653 info_ptr->kind = JVMTI_TIMER_ELAPSED; // elapsed not CPU time | |
| 1654 } | |
| 1655 | |
| 1656 char * os::local_time_string(char *buf, size_t buflen) { | |
| 1657 struct tm t; | |
| 1658 time_t long_time; | |
| 1659 time(&long_time); | |
| 1660 localtime_r(&long_time, &t); | |
| 1661 jio_snprintf(buf, buflen, "%d-%02d-%02d %02d:%02d:%02d", | |
| 1662 t.tm_year + 1900, t.tm_mon + 1, t.tm_mday, | |
| 1663 t.tm_hour, t.tm_min, t.tm_sec); | |
| 1664 return buf; | |
| 1665 } | |
| 1666 | |
| 1667 // Note: os::shutdown() might be called very early during initialization, or | |
| 1668 // called from signal handler. Before adding something to os::shutdown(), make | |
| 1669 // sure it is async-safe and can handle partially initialized VM. | |
| 1670 void os::shutdown() { | |
| 1671 | |
| 1672 // allow PerfMemory to attempt cleanup of any persistent resources | |
| 1673 perfMemory_exit(); | |
| 1674 | |
| 1675 // needs to remove object in file system | |
| 1676 AttachListener::abort(); | |
| 1677 | |
| 1678 // flush buffered output, finish log files | |
| 1679 ostream_abort(); | |
| 1680 | |
| 1681 // Check for abort hook | |
| 1682 abort_hook_t abort_hook = Arguments::abort_hook(); | |
| 1683 if (abort_hook != NULL) { | |
| 1684 abort_hook(); | |
| 1685 } | |
| 1686 } | |
| 1687 | |
| 1688 // Note: os::abort() might be called very early during initialization, or | |
| 1689 // called from signal handler. Before adding something to os::abort(), make | |
| 1690 // sure it is async-safe and can handle partially initialized VM. | |
| 1691 void os::abort(bool dump_core) { | |
| 1692 os::shutdown(); | |
| 1693 if (dump_core) { | |
| 1694 #ifndef PRODUCT | |
| 1695 fdStream out(defaultStream::output_fd()); | |
| 1696 out.print_raw("Current thread is "); | |
| 1697 char buf[16]; | |
| 1698 jio_snprintf(buf, sizeof(buf), UINTX_FORMAT, os::current_thread_id()); | |
| 1699 out.print_raw_cr(buf); | |
| 1700 out.print_raw_cr("Dumping core ..."); | |
| 1701 #endif | |
| 1702 ::abort(); // dump core (for debugging) | |
| 1703 } | |
| 1704 | |
| 1705 ::exit(1); | |
| 1706 } | |
| 1707 | |
| 1708 // Die immediately, no exit hook, no abort hook, no cleanup. | |
| 1709 void os::die() { | |
|
8066
b5e3ec9c69fa
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7629
diff
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|
1710 ::abort(); // dump core (for debugging) |
| 0 | 1711 } |
| 1712 | |
| 1713 // unused | |
| 1714 void os::set_error_file(const char *logfile) {} | |
| 1715 | |
| 1716 // DLL functions | |
| 1717 | |
| 1718 const char* os::dll_file_extension() { return ".so"; } | |
| 1719 | |
|
2130
34d64ad817f4
7009828: Fix for 6938627 breaks visualvm monitoring when -Djava.io.tmpdir is defined
coleenp
parents:
2102
diff
changeset
|
1720 // This must be hard coded because it's the system's temporary |
|
34d64ad817f4
7009828: Fix for 6938627 breaks visualvm monitoring when -Djava.io.tmpdir is defined
coleenp
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2102
diff
changeset
|
1721 // directory not the java application's temp directory, ala java.io.tmpdir. |
|
34d64ad817f4
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2102
diff
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|
1722 const char* os::get_temp_directory() { return "/tmp"; } |
| 0 | 1723 |
| 691 | 1724 static bool file_exists(const char* filename) { |
| 1725 struct stat statbuf; | |
| 1726 if (filename == NULL || strlen(filename) == 0) { | |
| 1727 return false; | |
| 1728 } | |
| 1729 return os::stat(filename, &statbuf) == 0; | |
| 1730 } | |
| 1731 | |
|
6966
6cb0d32b828b
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6882
diff
changeset
|
1732 bool os::dll_build_name(char* buffer, size_t buflen, |
| 691 | 1733 const char* pname, const char* fname) { |
|
6966
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changeset
|
1734 bool retval = false; |
| 242 | 1735 const size_t pnamelen = pname ? strlen(pname) : 0; |
| 1736 | |
|
6966
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8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
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diff
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|
1737 // Return error on buffer overflow. |
| 242 | 1738 if (pnamelen + strlen(fname) + 10 > (size_t) buflen) { |
|
6966
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changeset
|
1739 return retval; |
| 242 | 1740 } |
| 1741 | |
| 1742 if (pnamelen == 0) { | |
| 691 | 1743 snprintf(buffer, buflen, "lib%s.so", fname); |
|
6966
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8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
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6882
diff
changeset
|
1744 retval = true; |
| 691 | 1745 } else if (strchr(pname, *os::path_separator()) != NULL) { |
| 1746 int n; | |
| 1747 char** pelements = split_path(pname, &n); | |
|
9059
17bf4d428955
8006103: [parfait] Possible null pointer dereference at hotspot/src/os/linux/vm/os_linux.cpp; os_windows.cpp; os_solaris.cpp; os_bsd.cpp
ccheung
parents:
8744
diff
changeset
|
1748 if (pelements == NULL) { |
| 9062 | 1749 return false; |
|
9059
17bf4d428955
8006103: [parfait] Possible null pointer dereference at hotspot/src/os/linux/vm/os_linux.cpp; os_windows.cpp; os_solaris.cpp; os_bsd.cpp
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parents:
8744
diff
changeset
|
1750 } |
| 691 | 1751 for (int i = 0 ; i < n ; i++) { |
| 1752 // really shouldn't be NULL but what the heck, check can't hurt | |
| 1753 if (pelements[i] == NULL || strlen(pelements[i]) == 0) { | |
| 1754 continue; // skip the empty path values | |
| 1755 } | |
| 1756 snprintf(buffer, buflen, "%s/lib%s.so", pelements[i], fname); | |
| 1757 if (file_exists(buffer)) { | |
|
6966
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8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
bpittore
parents:
6882
diff
changeset
|
1758 retval = true; |
| 691 | 1759 break; |
| 1760 } | |
| 1761 } | |
| 1762 // release the storage | |
| 1763 for (int i = 0 ; i < n ; i++) { | |
| 1764 if (pelements[i] != NULL) { | |
| 6197 | 1765 FREE_C_HEAP_ARRAY(char, pelements[i], mtInternal); |
| 691 | 1766 } |
| 1767 } | |
| 1768 if (pelements != NULL) { | |
| 6197 | 1769 FREE_C_HEAP_ARRAY(char*, pelements, mtInternal); |
| 691 | 1770 } |
| 242 | 1771 } else { |
| 691 | 1772 snprintf(buffer, buflen, "%s/lib%s.so", pname, fname); |
|
6966
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8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
bpittore
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6882
diff
changeset
|
1773 retval = true; |
|
6cb0d32b828b
8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
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diff
changeset
|
1774 } |
|
6cb0d32b828b
8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
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6882
diff
changeset
|
1775 return retval; |
| 242 | 1776 } |
| 1777 | |
|
7456
7d42f3b08300
8005044: remove crufty '_g' support from HS runtime code
dcubed
parents:
7206
diff
changeset
|
1778 // check if addr is inside libjvm.so |
| 0 | 1779 bool os::address_is_in_vm(address addr) { |
| 1780 static address libjvm_base_addr; | |
| 1781 Dl_info dlinfo; | |
| 1782 | |
| 1783 if (libjvm_base_addr == NULL) { | |
|
11092
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10986
diff
changeset
|
1784 if (dladdr(CAST_FROM_FN_PTR(void *, os::address_is_in_vm), &dlinfo) != 0) { |
|
59b052799158
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dcubed
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10986
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|
1785 libjvm_base_addr = (address)dlinfo.dli_fbase; |
|
59b052799158
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10986
diff
changeset
|
1786 } |
| 0 | 1787 assert(libjvm_base_addr !=NULL, "Cannot obtain base address for libjvm"); |
| 1788 } | |
| 1789 | |
|
11092
59b052799158
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diff
changeset
|
1790 if (dladdr((void *)addr, &dlinfo) != 0) { |
| 0 | 1791 if (libjvm_base_addr == (address)dlinfo.dli_fbase) return true; |
| 1792 } | |
| 1793 | |
| 1794 return false; | |
| 1795 } | |
| 1796 | |
| 1797 typedef int (*dladdr1_func_type) (void *, Dl_info *, void **, int); | |
| 1798 static dladdr1_func_type dladdr1_func = NULL; | |
| 1799 | |
| 1800 bool os::dll_address_to_function_name(address addr, char *buf, | |
| 1801 int buflen, int * offset) { | |
|
11092
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|
1802 // buf is not optional, but offset is optional |
|
59b052799158
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|
1803 assert(buf != NULL, "sanity check"); |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
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|
1804 |
| 0 | 1805 Dl_info dlinfo; |
| 1806 | |
| 1807 // dladdr1_func was initialized in os::init() | |
|
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changeset
|
1808 if (dladdr1_func != NULL) { |
|
59b052799158
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|
1809 // yes, we have dladdr1 |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
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|
1810 |
|
59b052799158
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changeset
|
1811 // Support for dladdr1 is checked at runtime; it may be |
|
59b052799158
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|
1812 // available even if the vm is built on a machine that does |
|
59b052799158
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dcubed
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changeset
|
1813 // not have dladdr1 support. Make sure there is a value for |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
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changeset
|
1814 // RTLD_DL_SYMENT. |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
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|
1815 #ifndef RTLD_DL_SYMENT |
|
59b052799158
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changeset
|
1816 #define RTLD_DL_SYMENT 1 |
|
59b052799158
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|
1817 #endif |
|
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|
1818 #ifdef _LP64 |
|
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|
1819 Elf64_Sym * info; |
|
2259
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|
1820 #else |
|
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|
1821 Elf32_Sym * info; |
|
2259
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2130
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|
1822 #endif |
|
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changeset
|
1823 if (dladdr1_func((void *)addr, &dlinfo, (void **)&info, |
|
59b052799158
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changeset
|
1824 RTLD_DL_SYMENT) != 0) { |
|
59b052799158
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changeset
|
1825 // see if we have a matching symbol that covers our address |
|
59b052799158
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changeset
|
1826 if (dlinfo.dli_saddr != NULL && |
|
59b052799158
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10986
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changeset
|
1827 (char *)dlinfo.dli_saddr + info->st_size > (char *)addr) { |
|
59b052799158
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changeset
|
1828 if (dlinfo.dli_sname != NULL) { |
|
59b052799158
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10986
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changeset
|
1829 if (!Decoder::demangle(dlinfo.dli_sname, buf, buflen)) { |
|
59b052799158
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|
1830 jio_snprintf(buf, buflen, "%s", dlinfo.dli_sname); |
|
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diff
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|
1831 } |
|
59b052799158
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changeset
|
1832 if (offset != NULL) *offset = addr - (address)dlinfo.dli_saddr; |
|
2022
2d4762ec74af
7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
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diff
changeset
|
1833 return true; |
|
2d4762ec74af
7003748: Decode C stack frames when symbols are presented (PhoneHome project)
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1972
diff
changeset
|
1834 } |
|
2d4762ec74af
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|
1835 } |
|
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|
1836 // no matching symbol so try for just file info |
|
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|
1837 if (dlinfo.dli_fname != NULL && dlinfo.dli_fbase != NULL) { |
|
2022
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zgu
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diff
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|
1838 if (Decoder::decode((address)(addr - (address)dlinfo.dli_fbase), |
|
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|
1839 buf, buflen, offset, dlinfo.dli_fname)) { |
| 0 | 1840 return true; |
|
2022
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|
1841 } |
| 0 | 1842 } |
|
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|
1843 } |
|
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|
1844 buf[0] = '\0'; |
|
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|
1845 if (offset != NULL) *offset = -1; |
|
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|
1846 return false; |
|
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|
1847 } |
|
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|
1848 |
|
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|
1849 // no, only dladdr is available |
|
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|
1850 if (dladdr((void *)addr, &dlinfo) != 0) { |
|
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|
1851 // see if we have a matching symbol |
|
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|
1852 if (dlinfo.dli_saddr != NULL && dlinfo.dli_sname != NULL) { |
|
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|
1853 if (!Decoder::demangle(dlinfo.dli_sname, buf, buflen)) { |
|
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|
1854 jio_snprintf(buf, buflen, dlinfo.dli_sname); |
|
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|
1855 } |
|
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|
1856 if (offset != NULL) *offset = addr - (address)dlinfo.dli_saddr; |
|
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|
1857 return true; |
|
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|
1858 } |
|
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|
1859 // no matching symbol so try for just file info |
|
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|
1860 if (dlinfo.dli_fname != NULL && dlinfo.dli_fbase != NULL) { |
|
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|
1861 if (Decoder::decode((address)(addr - (address)dlinfo.dli_fbase), |
|
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|
1862 buf, buflen, offset, dlinfo.dli_fname)) { |
|
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|
1863 return true; |
|
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|
1864 } |
|
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|
1865 } |
|
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|
1866 } |
|
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|
1867 buf[0] = '\0'; |
|
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|
1868 if (offset != NULL) *offset = -1; |
|
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|
1869 return false; |
| 0 | 1870 } |
| 1871 | |
| 1872 bool os::dll_address_to_library_name(address addr, char* buf, | |
| 1873 int buflen, int* offset) { | |
|
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|
1874 // buf is not optional, but offset is optional |
|
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|
1875 assert(buf != NULL, "sanity check"); |
|
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|
1876 |
| 0 | 1877 Dl_info dlinfo; |
| 1878 | |
|
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|
1879 if (dladdr((void*)addr, &dlinfo) != 0) { |
|
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|
1880 if (dlinfo.dli_fname != NULL) { |
|
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|
1881 jio_snprintf(buf, buflen, "%s", dlinfo.dli_fname); |
|
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|
1882 } |
|
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|
1883 if (dlinfo.dli_fbase != NULL && offset != NULL) { |
|
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|
1884 *offset = addr - (address)dlinfo.dli_fbase; |
|
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|
1885 } |
|
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|
1886 return true; |
|
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|
1887 } |
|
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|
1888 |
|
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|
1889 buf[0] = '\0'; |
|
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|
1890 if (offset) *offset = -1; |
|
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|
1891 return false; |
| 0 | 1892 } |
| 1893 | |
| 1894 // Prints the names and full paths of all opened dynamic libraries | |
| 1895 // for current process | |
| 1896 void os::print_dll_info(outputStream * st) { | |
|
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|
1897 Dl_info dli; |
|
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|
1898 void *handle; |
|
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|
1899 Link_map *map; |
|
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|
1900 Link_map *p; |
|
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|
1901 |
|
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|
1902 st->print_cr("Dynamic libraries:"); st->flush(); |
|
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|
1903 |
|
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|
1904 if (dladdr(CAST_FROM_FN_PTR(void *, os::print_dll_info), &dli) == 0 || |
|
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|
1905 dli.dli_fname == NULL) { |
|
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|
1906 st->print_cr("Error: Cannot print dynamic libraries."); |
|
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|
1907 return; |
|
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|
1908 } |
|
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|
1909 handle = dlopen(dli.dli_fname, RTLD_LAZY); |
|
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|
1910 if (handle == NULL) { |
|
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|
1911 st->print_cr("Error: Cannot print dynamic libraries."); |
|
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|
1912 return; |
|
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|
1913 } |
|
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|
1914 dlinfo(handle, RTLD_DI_LINKMAP, &map); |
|
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|
1915 if (map == NULL) { |
|
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|
1916 st->print_cr("Error: Cannot print dynamic libraries."); |
|
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|
1917 return; |
|
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|
1918 } |
|
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|
1919 |
|
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|
1920 while (map->l_prev != NULL) |
|
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|
1921 map = map->l_prev; |
|
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|
1922 |
|
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|
1923 while (map != NULL) { |
|
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|
1924 st->print_cr(PTR_FORMAT " \t%s", map->l_addr, map->l_name); |
|
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|
1925 map = map->l_next; |
|
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|
1926 } |
|
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|
1927 |
|
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|
1928 dlclose(handle); |
| 0 | 1929 } |
| 1930 | |
| 1931 // Loads .dll/.so and | |
| 1932 // in case of error it checks if .dll/.so was built for the | |
| 1933 // same architecture as Hotspot is running on | |
| 1934 | |
| 1935 void * os::dll_load(const char *filename, char *ebuf, int ebuflen) | |
| 1936 { | |
| 1937 void * result= ::dlopen(filename, RTLD_LAZY); | |
| 1938 if (result != NULL) { | |
| 1939 // Successful loading | |
| 1940 return result; | |
| 1941 } | |
| 1942 | |
| 1943 Elf32_Ehdr elf_head; | |
| 1944 | |
| 1945 // Read system error message into ebuf | |
| 1946 // It may or may not be overwritten below | |
| 1947 ::strncpy(ebuf, ::dlerror(), ebuflen-1); | |
| 1948 ebuf[ebuflen-1]='\0'; | |
| 1949 int diag_msg_max_length=ebuflen-strlen(ebuf); | |
| 1950 char* diag_msg_buf=ebuf+strlen(ebuf); | |
| 1951 | |
| 1952 if (diag_msg_max_length==0) { | |
| 1953 // No more space in ebuf for additional diagnostics message | |
| 1954 return NULL; | |
| 1955 } | |
| 1956 | |
| 1957 | |
| 1958 int file_descriptor= ::open(filename, O_RDONLY | O_NONBLOCK); | |
| 1959 | |
| 1960 if (file_descriptor < 0) { | |
| 1961 // Can't open library, report dlerror() message | |
| 1962 return NULL; | |
| 1963 } | |
| 1964 | |
| 1965 bool failed_to_read_elf_head= | |
| 1966 (sizeof(elf_head)!= | |
| 1967 (::read(file_descriptor, &elf_head,sizeof(elf_head)))) ; | |
| 1968 | |
| 1969 ::close(file_descriptor); | |
| 1970 if (failed_to_read_elf_head) { | |
| 1971 // file i/o error - report dlerror() msg | |
| 1972 return NULL; | |
| 1973 } | |
| 1974 | |
| 1975 typedef struct { | |
| 1976 Elf32_Half code; // Actual value as defined in elf.h | |
| 1977 Elf32_Half compat_class; // Compatibility of archs at VM's sense | |
| 1978 char elf_class; // 32 or 64 bit | |
| 1979 char endianess; // MSB or LSB | |
| 1980 char* name; // String representation | |
| 1981 } arch_t; | |
| 1982 | |
| 1983 static const arch_t arch_array[]={ | |
| 1984 {EM_386, EM_386, ELFCLASS32, ELFDATA2LSB, (char*)"IA 32"}, | |
| 1985 {EM_486, EM_386, ELFCLASS32, ELFDATA2LSB, (char*)"IA 32"}, | |
| 1986 {EM_IA_64, EM_IA_64, ELFCLASS64, ELFDATA2LSB, (char*)"IA 64"}, | |
| 1987 {EM_X86_64, EM_X86_64, ELFCLASS64, ELFDATA2LSB, (char*)"AMD 64"}, | |
| 1988 {EM_SPARC, EM_SPARC, ELFCLASS32, ELFDATA2MSB, (char*)"Sparc 32"}, | |
| 1989 {EM_SPARC32PLUS, EM_SPARC, ELFCLASS32, ELFDATA2MSB, (char*)"Sparc 32"}, | |
| 1990 {EM_SPARCV9, EM_SPARCV9, ELFCLASS64, ELFDATA2MSB, (char*)"Sparc v9 64"}, | |
| 1991 {EM_PPC, EM_PPC, ELFCLASS32, ELFDATA2MSB, (char*)"Power PC 32"}, | |
|
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|
1992 {EM_PPC64, EM_PPC64, ELFCLASS64, ELFDATA2MSB, (char*)"Power PC 64"}, |
|
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|
1993 {EM_ARM, EM_ARM, ELFCLASS32, ELFDATA2LSB, (char*)"ARM 32"} |
| 0 | 1994 }; |
| 1995 | |
| 1996 #if (defined IA32) | |
| 1997 static Elf32_Half running_arch_code=EM_386; | |
| 1998 #elif (defined AMD64) | |
| 1999 static Elf32_Half running_arch_code=EM_X86_64; | |
| 2000 #elif (defined IA64) | |
| 2001 static Elf32_Half running_arch_code=EM_IA_64; | |
| 2002 #elif (defined __sparc) && (defined _LP64) | |
| 2003 static Elf32_Half running_arch_code=EM_SPARCV9; | |
| 2004 #elif (defined __sparc) && (!defined _LP64) | |
| 2005 static Elf32_Half running_arch_code=EM_SPARC; | |
| 2006 #elif (defined __powerpc64__) | |
| 2007 static Elf32_Half running_arch_code=EM_PPC64; | |
| 2008 #elif (defined __powerpc__) | |
| 2009 static Elf32_Half running_arch_code=EM_PPC; | |
|
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|
2010 #elif (defined ARM) |
|
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|
2011 static Elf32_Half running_arch_code=EM_ARM; |
| 0 | 2012 #else |
| 2013 #error Method os::dll_load requires that one of following is defined:\ | |
|
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|
2014 IA32, AMD64, IA64, __sparc, __powerpc__, ARM, ARM |
| 0 | 2015 #endif |
| 2016 | |
| 2017 // Identify compatability class for VM's architecture and library's architecture | |
| 2018 // Obtain string descriptions for architectures | |
| 2019 | |
| 2020 arch_t lib_arch={elf_head.e_machine,0,elf_head.e_ident[EI_CLASS], elf_head.e_ident[EI_DATA], NULL}; | |
| 2021 int running_arch_index=-1; | |
| 2022 | |
| 2023 for (unsigned int i=0 ; i < ARRAY_SIZE(arch_array) ; i++ ) { | |
| 2024 if (running_arch_code == arch_array[i].code) { | |
| 2025 running_arch_index = i; | |
| 2026 } | |
| 2027 if (lib_arch.code == arch_array[i].code) { | |
| 2028 lib_arch.compat_class = arch_array[i].compat_class; | |
| 2029 lib_arch.name = arch_array[i].name; | |
| 2030 } | |
| 2031 } | |
| 2032 | |
| 2033 assert(running_arch_index != -1, | |
| 2034 "Didn't find running architecture code (running_arch_code) in arch_array"); | |
| 2035 if (running_arch_index == -1) { | |
| 2036 // Even though running architecture detection failed | |
| 2037 // we may still continue with reporting dlerror() message | |
| 2038 return NULL; | |
| 2039 } | |
| 2040 | |
| 2041 if (lib_arch.endianess != arch_array[running_arch_index].endianess) { | |
| 2042 ::snprintf(diag_msg_buf, diag_msg_max_length-1," (Possible cause: endianness mismatch)"); | |
| 2043 return NULL; | |
| 2044 } | |
| 2045 | |
| 2046 if (lib_arch.elf_class != arch_array[running_arch_index].elf_class) { | |
| 2047 ::snprintf(diag_msg_buf, diag_msg_max_length-1," (Possible cause: architecture word width mismatch)"); | |
| 2048 return NULL; | |
| 2049 } | |
| 2050 | |
| 2051 if (lib_arch.compat_class != arch_array[running_arch_index].compat_class) { | |
| 2052 if ( lib_arch.name!=NULL ) { | |
| 2053 ::snprintf(diag_msg_buf, diag_msg_max_length-1, | |
| 2054 " (Possible cause: can't load %s-bit .so on a %s-bit platform)", | |
| 2055 lib_arch.name, arch_array[running_arch_index].name); | |
| 2056 } else { | |
| 2057 ::snprintf(diag_msg_buf, diag_msg_max_length-1, | |
| 2058 " (Possible cause: can't load this .so (machine code=0x%x) on a %s-bit platform)", | |
| 2059 lib_arch.code, | |
| 2060 arch_array[running_arch_index].name); | |
| 2061 } | |
| 2062 } | |
| 2063 | |
| 2064 return NULL; | |
| 2065 } | |
| 2066 | |
| 242 | 2067 void* os::dll_lookup(void* handle, const char* name) { |
| 2068 return dlsym(handle, name); | |
| 2069 } | |
| 0 | 2070 |
|
17684
d1621038becf
8031968: Mac OS X: VM starts the agent by calling both Agent_OnAttach and Agent_OnAttach_L functions if its agent library is dynamically linked.
sla
parents:
12233
diff
changeset
|
2071 void* os::get_default_process_handle() { |
|
d1621038becf
8031968: Mac OS X: VM starts the agent by calling both Agent_OnAttach and Agent_OnAttach_L functions if its agent library is dynamically linked.
sla
parents:
12233
diff
changeset
|
2072 return (void*)::dlopen(NULL, RTLD_LAZY); |
|
d1621038becf
8031968: Mac OS X: VM starts the agent by calling both Agent_OnAttach and Agent_OnAttach_L functions if its agent library is dynamically linked.
sla
parents:
12233
diff
changeset
|
2073 } |
|
d1621038becf
8031968: Mac OS X: VM starts the agent by calling both Agent_OnAttach and Agent_OnAttach_L functions if its agent library is dynamically linked.
sla
parents:
12233
diff
changeset
|
2074 |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2075 int os::stat(const char *path, struct stat *sbuf) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2076 char pathbuf[MAX_PATH]; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2077 if (strlen(path) > MAX_PATH - 1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2078 errno = ENAMETOOLONG; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2079 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2080 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2081 os::native_path(strcpy(pathbuf, path)); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2082 return ::stat(pathbuf, sbuf); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2083 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2084 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2085 static bool _print_ascii_file(const char* filename, outputStream* st) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2086 int fd = ::open(filename, O_RDONLY); |
| 0 | 2087 if (fd == -1) { |
| 2088 return false; | |
| 2089 } | |
| 2090 | |
| 2091 char buf[32]; | |
| 2092 int bytes; | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2093 while ((bytes = ::read(fd, buf, sizeof(buf))) > 0) { |
| 0 | 2094 st->print_raw(buf, bytes); |
| 2095 } | |
| 2096 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2097 ::close(fd); |
| 0 | 2098 |
| 2099 return true; | |
| 2100 } | |
| 2101 | |
|
6080
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2102 void os::print_os_info_brief(outputStream* st) { |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2103 os::Solaris::print_distro_info(st); |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2104 |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2105 os::Posix::print_uname_info(st); |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2106 |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2107 os::Solaris::print_libversion_info(st); |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2108 } |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2109 |
| 0 | 2110 void os::print_os_info(outputStream* st) { |
| 2111 st->print("OS:"); | |
| 2112 | |
|
6080
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2113 os::Solaris::print_distro_info(st); |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2114 |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2115 os::Posix::print_uname_info(st); |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2116 |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2117 os::Solaris::print_libversion_info(st); |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2118 |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2119 os::Posix::print_rlimit_info(st); |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2120 |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2121 os::Posix::print_load_average(st); |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2122 } |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2123 |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2124 void os::Solaris::print_distro_info(outputStream* st) { |
| 0 | 2125 if (!_print_ascii_file("/etc/release", st)) { |
|
6080
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2126 st->print("Solaris"); |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2127 } |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2128 st->cr(); |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2129 } |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2130 |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2131 void os::Solaris::print_libversion_info(outputStream* st) { |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2132 if (os::Solaris::T2_libthread()) { |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2133 st->print(" (T2 libthread)"); |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2134 } |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2135 else { |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2136 st->print(" (T1 libthread)"); |
| 0 | 2137 } |
| 2138 st->cr(); | |
|
6080
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2139 } |
| 0 | 2140 |
| 2141 static bool check_addr0(outputStream* st) { | |
| 2142 jboolean status = false; | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2143 int fd = ::open("/proc/self/map",O_RDONLY); |
| 0 | 2144 if (fd >= 0) { |
| 2145 prmap_t p; | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2146 while(::read(fd, &p, sizeof(p)) > 0) { |
| 0 | 2147 if (p.pr_vaddr == 0x0) { |
| 2148 st->print("Warning: Address: 0x%x, Size: %dK, ",p.pr_vaddr, p.pr_size/1024, p.pr_mapname); | |
| 2149 st->print("Mapped file: %s, ", p.pr_mapname[0] == '\0' ? "None" : p.pr_mapname); | |
| 2150 st->print("Access:"); | |
| 2151 st->print("%s",(p.pr_mflags & MA_READ) ? "r" : "-"); | |
| 2152 st->print("%s",(p.pr_mflags & MA_WRITE) ? "w" : "-"); | |
| 2153 st->print("%s",(p.pr_mflags & MA_EXEC) ? "x" : "-"); | |
| 2154 st->cr(); | |
| 2155 status = true; | |
| 2156 } | |
| 2157 } | |
| 17707 | 2158 ::close(fd); |
| 0 | 2159 } |
| 2160 return status; | |
| 2161 } | |
| 2162 | |
|
3800
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
jcoomes
parents:
3318
diff
changeset
|
2163 void os::pd_print_cpu_info(outputStream* st) { |
|
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
jcoomes
parents:
3318
diff
changeset
|
2164 // Nothing to do for now. |
|
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
jcoomes
parents:
3318
diff
changeset
|
2165 } |
|
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
jcoomes
parents:
3318
diff
changeset
|
2166 |
| 0 | 2167 void os::print_memory_info(outputStream* st) { |
| 2168 st->print("Memory:"); | |
| 2169 st->print(" %dk page", os::vm_page_size()>>10); | |
| 2170 st->print(", physical " UINT64_FORMAT "k", os::physical_memory()>>10); | |
| 2171 st->print("(" UINT64_FORMAT "k free)", os::available_memory() >> 10); | |
| 2172 st->cr(); | |
| 2173 (void) check_addr0(st); | |
| 2174 } | |
| 2175 | |
| 2176 void os::print_siginfo(outputStream* st, void* siginfo) { | |
| 14410 | 2177 const siginfo_t* si = (const siginfo_t*)siginfo; |
| 2178 | |
| 2179 os::Posix::print_siginfo_brief(st, si); | |
| 2180 | |
| 2181 if (si && (si->si_signo == SIGBUS || si->si_signo == SIGSEGV) && | |
| 0 | 2182 UseSharedSpaces) { |
| 2183 FileMapInfo* mapinfo = FileMapInfo::current_info(); | |
| 2184 if (mapinfo->is_in_shared_space(si->si_addr)) { | |
| 2185 st->print("\n\nError accessing class data sharing archive." \ | |
| 2186 " Mapped file inaccessible during execution, " \ | |
| 2187 " possible disk/network problem."); | |
| 2188 } | |
| 2189 } | |
| 2190 st->cr(); | |
| 2191 } | |
| 2192 | |
| 2193 // Moved from whole group, because we need them here for diagnostic | |
| 2194 // prints. | |
| 2195 #define OLDMAXSIGNUM 32 | |
| 2196 static int Maxsignum = 0; | |
| 2197 static int *ourSigFlags = NULL; | |
| 2198 | |
| 2199 extern "C" void sigINTRHandler(int, siginfo_t*, void*); | |
| 2200 | |
| 2201 int os::Solaris::get_our_sigflags(int sig) { | |
| 2202 assert(ourSigFlags!=NULL, "signal data structure not initialized"); | |
| 2203 assert(sig > 0 && sig < Maxsignum, "vm signal out of expected range"); | |
| 2204 return ourSigFlags[sig]; | |
| 2205 } | |
| 2206 | |
| 2207 void os::Solaris::set_our_sigflags(int sig, int flags) { | |
| 2208 assert(ourSigFlags!=NULL, "signal data structure not initialized"); | |
| 2209 assert(sig > 0 && sig < Maxsignum, "vm signal out of expected range"); | |
| 2210 ourSigFlags[sig] = flags; | |
| 2211 } | |
| 2212 | |
| 2213 | |
| 2214 static const char* get_signal_handler_name(address handler, | |
| 2215 char* buf, int buflen) { | |
| 2216 int offset; | |
| 2217 bool found = os::dll_address_to_library_name(handler, buf, buflen, &offset); | |
| 2218 if (found) { | |
| 2219 // skip directory names | |
| 2220 const char *p1, *p2; | |
| 2221 p1 = buf; | |
| 2222 size_t len = strlen(os::file_separator()); | |
| 2223 while ((p2 = strstr(p1, os::file_separator())) != NULL) p1 = p2 + len; | |
| 2224 jio_snprintf(buf, buflen, "%s+0x%x", p1, offset); | |
| 2225 } else { | |
| 2226 jio_snprintf(buf, buflen, PTR_FORMAT, handler); | |
| 2227 } | |
| 2228 return buf; | |
| 2229 } | |
| 2230 | |
| 2231 static void print_signal_handler(outputStream* st, int sig, | |
| 2232 char* buf, size_t buflen) { | |
| 2233 struct sigaction sa; | |
| 2234 | |
| 2235 sigaction(sig, NULL, &sa); | |
| 2236 | |
| 2237 st->print("%s: ", os::exception_name(sig, buf, buflen)); | |
| 2238 | |
| 2239 address handler = (sa.sa_flags & SA_SIGINFO) | |
| 2240 ? CAST_FROM_FN_PTR(address, sa.sa_sigaction) | |
| 2241 : CAST_FROM_FN_PTR(address, sa.sa_handler); | |
| 2242 | |
| 2243 if (handler == CAST_FROM_FN_PTR(address, SIG_DFL)) { | |
| 2244 st->print("SIG_DFL"); | |
| 2245 } else if (handler == CAST_FROM_FN_PTR(address, SIG_IGN)) { | |
| 2246 st->print("SIG_IGN"); | |
| 2247 } else { | |
| 2248 st->print("[%s]", get_signal_handler_name(handler, buf, buflen)); | |
| 2249 } | |
| 2250 | |
| 14410 | 2251 st->print(", sa_mask[0]="); |
| 2252 os::Posix::print_signal_set_short(st, &sa.sa_mask); | |
| 0 | 2253 |
| 2254 address rh = VMError::get_resetted_sighandler(sig); | |
| 2255 // May be, handler was resetted by VMError? | |
| 2256 if(rh != NULL) { | |
| 2257 handler = rh; | |
| 2258 sa.sa_flags = VMError::get_resetted_sigflags(sig); | |
| 2259 } | |
| 2260 | |
| 14410 | 2261 st->print(", sa_flags="); |
| 2262 os::Posix::print_sa_flags(st, sa.sa_flags); | |
| 0 | 2263 |
| 2264 // Check: is it our handler? | |
| 2265 if(handler == CAST_FROM_FN_PTR(address, signalHandler) || | |
| 2266 handler == CAST_FROM_FN_PTR(address, sigINTRHandler)) { | |
| 2267 // It is our signal handler | |
| 2268 // check for flags | |
| 2269 if(sa.sa_flags != os::Solaris::get_our_sigflags(sig)) { | |
| 2270 st->print( | |
| 2271 ", flags was changed from " PTR32_FORMAT ", consider using jsig library", | |
| 2272 os::Solaris::get_our_sigflags(sig)); | |
| 2273 } | |
| 2274 } | |
| 2275 st->cr(); | |
| 2276 } | |
| 2277 | |
| 2278 void os::print_signal_handlers(outputStream* st, char* buf, size_t buflen) { | |
| 2279 st->print_cr("Signal Handlers:"); | |
| 2280 print_signal_handler(st, SIGSEGV, buf, buflen); | |
| 2281 print_signal_handler(st, SIGBUS , buf, buflen); | |
| 2282 print_signal_handler(st, SIGFPE , buf, buflen); | |
| 2283 print_signal_handler(st, SIGPIPE, buf, buflen); | |
| 2284 print_signal_handler(st, SIGXFSZ, buf, buflen); | |
| 2285 print_signal_handler(st, SIGILL , buf, buflen); | |
| 2286 print_signal_handler(st, INTERRUPT_SIGNAL, buf, buflen); | |
| 2287 print_signal_handler(st, ASYNC_SIGNAL, buf, buflen); | |
| 2288 print_signal_handler(st, BREAK_SIGNAL, buf, buflen); | |
| 2289 print_signal_handler(st, SHUTDOWN1_SIGNAL , buf, buflen); | |
| 2290 print_signal_handler(st, SHUTDOWN2_SIGNAL , buf, buflen); | |
| 2291 print_signal_handler(st, SHUTDOWN3_SIGNAL, buf, buflen); | |
| 2292 print_signal_handler(st, os::Solaris::SIGinterrupt(), buf, buflen); | |
| 2293 print_signal_handler(st, os::Solaris::SIGasync(), buf, buflen); | |
| 2294 } | |
| 2295 | |
| 2296 static char saved_jvm_path[MAXPATHLEN] = { 0 }; | |
| 2297 | |
|
7456
7d42f3b08300
8005044: remove crufty '_g' support from HS runtime code
dcubed
parents:
7206
diff
changeset
|
2298 // Find the full path to the current module, libjvm.so |
| 0 | 2299 void os::jvm_path(char *buf, jint buflen) { |
| 2300 // Error checking. | |
| 2301 if (buflen < MAXPATHLEN) { | |
| 2302 assert(false, "must use a large-enough buffer"); | |
| 2303 buf[0] = '\0'; | |
| 2304 return; | |
| 2305 } | |
| 2306 // Lazy resolve the path to current module. | |
| 2307 if (saved_jvm_path[0] != 0) { | |
| 2308 strcpy(buf, saved_jvm_path); | |
| 2309 return; | |
| 2310 } | |
| 2311 | |
| 2312 Dl_info dlinfo; | |
| 2313 int ret = dladdr(CAST_FROM_FN_PTR(void *, os::jvm_path), &dlinfo); | |
| 2314 assert(ret != 0, "cannot locate libjvm"); | |
|
11092
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
2315 if (ret != 0 && dlinfo.dli_fname != NULL) { |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
2316 realpath((char *)dlinfo.dli_fname, buf); |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
2317 } else { |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
2318 buf[0] = '\0'; |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
2319 return; |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
2320 } |
| 0 | 2321 |
|
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2191
diff
changeset
|
2322 if (Arguments::created_by_gamma_launcher()) { |
| 0 | 2323 // Support for the gamma launcher. Typical value for buf is |
| 2324 // "<JAVA_HOME>/jre/lib/<arch>/<vmtype>/libjvm.so". If "/jre/lib/" appears at | |
| 2325 // the right place in the string, then assume we are installed in a JDK and | |
| 2326 // we're done. Otherwise, check for a JAVA_HOME environment variable and fix | |
| 2327 // up the path so it looks like libjvm.so is installed there (append a | |
| 2328 // fake suffix hotspot/libjvm.so). | |
| 2329 const char *p = buf + strlen(buf) - 1; | |
| 2330 for (int count = 0; p > buf && count < 5; ++count) { | |
| 2331 for (--p; p > buf && *p != '/'; --p) | |
| 2332 /* empty */ ; | |
| 2333 } | |
| 2334 | |
| 2335 if (strncmp(p, "/jre/lib/", 9) != 0) { | |
| 2336 // Look for JAVA_HOME in the environment. | |
| 2337 char* java_home_var = ::getenv("JAVA_HOME"); | |
| 2338 if (java_home_var != NULL && java_home_var[0] != 0) { | |
| 2339 char cpu_arch[12]; | |
| 1642 | 2340 char* jrelib_p; |
| 2341 int len; | |
| 0 | 2342 sysinfo(SI_ARCHITECTURE, cpu_arch, sizeof(cpu_arch)); |
| 2343 #ifdef _LP64 | |
| 2344 // If we are on sparc running a 64-bit vm, look in jre/lib/sparcv9. | |
| 2345 if (strcmp(cpu_arch, "sparc") == 0) { | |
| 2346 strcat(cpu_arch, "v9"); | |
| 2347 } else if (strcmp(cpu_arch, "i386") == 0) { | |
| 2348 strcpy(cpu_arch, "amd64"); | |
| 2349 } | |
| 2350 #endif | |
|
7456
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|
2351 // Check the current module name "libjvm.so". |
| 0 | 2352 p = strrchr(buf, '/'); |
| 2353 assert(strstr(p, "/libjvm") == p, "invalid library name"); | |
| 2354 | |
| 2355 realpath(java_home_var, buf); | |
| 1642 | 2356 // determine if this is a legacy image or modules image |
| 2357 // modules image doesn't have "jre" subdirectory | |
| 2358 len = strlen(buf); | |
| 2359 jrelib_p = buf + len; | |
| 2360 snprintf(jrelib_p, buflen-len, "/jre/lib/%s", cpu_arch); | |
| 2361 if (0 != access(buf, F_OK)) { | |
| 2362 snprintf(jrelib_p, buflen-len, "/lib/%s", cpu_arch); | |
| 2363 } | |
| 2364 | |
| 0 | 2365 if (0 == access(buf, F_OK)) { |
|
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|
2366 // Use current module name "libjvm.so" |
| 1642 | 2367 len = strlen(buf); |
|
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|
2368 snprintf(buf + len, buflen-len, "/hotspot/libjvm.so"); |
| 0 | 2369 } else { |
| 2370 // Go back to path of .so | |
| 2371 realpath((char *)dlinfo.dli_fname, buf); | |
| 2372 } | |
| 2373 } | |
| 2374 } | |
| 2375 } | |
| 2376 | |
| 2377 strcpy(saved_jvm_path, buf); | |
| 2378 } | |
| 2379 | |
| 2380 | |
| 2381 void os::print_jni_name_prefix_on(outputStream* st, int args_size) { | |
| 2382 // no prefix required, not even "_" | |
| 2383 } | |
| 2384 | |
| 2385 | |
| 2386 void os::print_jni_name_suffix_on(outputStream* st, int args_size) { | |
| 2387 // no suffix required | |
| 2388 } | |
| 2389 | |
|
1980
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|
2390 // This method is a copy of JDK's sysGetLastErrorString |
|
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|
2391 // from src/solaris/hpi/src/system_md.c |
|
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diff
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|
2392 |
|
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|
2393 size_t os::lasterror(char *buf, size_t len) { |
|
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diff
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|
2394 |
|
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diff
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|
2395 if (errno == 0) return 0; |
|
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diff
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|
2396 |
|
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diff
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|
2397 const char *s = ::strerror(errno); |
|
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diff
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|
2398 size_t n = ::strlen(s); |
|
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diff
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|
2399 if (n >= len) { |
|
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diff
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|
2400 n = len - 1; |
|
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diff
changeset
|
2401 } |
|
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diff
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|
2402 ::strncpy(buf, s, n); |
|
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diff
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|
2403 buf[n] = '\0'; |
|
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diff
changeset
|
2404 return n; |
|
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diff
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|
2405 } |
|
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|
2406 |
| 0 | 2407 |
| 2408 // sun.misc.Signal | |
| 2409 | |
| 2410 extern "C" { | |
| 2411 static void UserHandler(int sig, void *siginfo, void *context) { | |
| 2412 // Ctrl-C is pressed during error reporting, likely because the error | |
| 2413 // handler fails to abort. Let VM die immediately. | |
| 2414 if (sig == SIGINT && is_error_reported()) { | |
| 2415 os::die(); | |
| 2416 } | |
| 2417 | |
| 2418 os::signal_notify(sig); | |
| 2419 // We do not need to reinstate the signal handler each time... | |
| 2420 } | |
| 2421 } | |
| 2422 | |
| 2423 void* os::user_handler() { | |
| 2424 return CAST_FROM_FN_PTR(void*, UserHandler); | |
| 2425 } | |
| 2426 | |
| 10405 | 2427 class Semaphore : public StackObj { |
| 2428 public: | |
| 2429 Semaphore(); | |
| 2430 ~Semaphore(); | |
| 2431 void signal(); | |
| 2432 void wait(); | |
| 2433 bool trywait(); | |
| 2434 bool timedwait(unsigned int sec, int nsec); | |
| 2435 private: | |
| 2436 sema_t _semaphore; | |
| 2437 }; | |
| 2438 | |
| 2439 | |
| 2440 Semaphore::Semaphore() { | |
| 2441 sema_init(&_semaphore, 0, NULL, NULL); | |
| 2442 } | |
| 2443 | |
| 2444 Semaphore::~Semaphore() { | |
| 2445 sema_destroy(&_semaphore); | |
| 2446 } | |
| 2447 | |
| 2448 void Semaphore::signal() { | |
| 2449 sema_post(&_semaphore); | |
| 2450 } | |
| 2451 | |
| 2452 void Semaphore::wait() { | |
| 2453 sema_wait(&_semaphore); | |
| 2454 } | |
| 2455 | |
| 2456 bool Semaphore::trywait() { | |
| 2457 return sema_trywait(&_semaphore) == 0; | |
| 2458 } | |
| 2459 | |
| 2460 bool Semaphore::timedwait(unsigned int sec, int nsec) { | |
| 2461 struct timespec ts; | |
| 2462 unpackTime(&ts, false, (sec * NANOSECS_PER_SEC) + nsec); | |
| 2463 | |
| 2464 while (1) { | |
| 2465 int result = sema_timedwait(&_semaphore, &ts); | |
| 2466 if (result == 0) { | |
| 2467 return true; | |
| 2468 } else if (errno == EINTR) { | |
| 2469 continue; | |
| 2470 } else if (errno == ETIME) { | |
| 2471 return false; | |
| 2472 } else { | |
| 2473 return false; | |
| 2474 } | |
| 2475 } | |
| 2476 } | |
| 2477 | |
| 0 | 2478 extern "C" { |
| 2479 typedef void (*sa_handler_t)(int); | |
| 2480 typedef void (*sa_sigaction_t)(int, siginfo_t *, void *); | |
| 2481 } | |
| 2482 | |
| 2483 void* os::signal(int signal_number, void* handler) { | |
| 2484 struct sigaction sigAct, oldSigAct; | |
| 2485 sigfillset(&(sigAct.sa_mask)); | |
| 2486 sigAct.sa_flags = SA_RESTART & ~SA_RESETHAND; | |
| 2487 sigAct.sa_handler = CAST_TO_FN_PTR(sa_handler_t, handler); | |
| 2488 | |
| 2489 if (sigaction(signal_number, &sigAct, &oldSigAct)) | |
| 2490 // -1 means registration failed | |
| 2491 return (void *)-1; | |
| 2492 | |
| 2493 return CAST_FROM_FN_PTR(void*, oldSigAct.sa_handler); | |
| 2494 } | |
| 2495 | |
| 2496 void os::signal_raise(int signal_number) { | |
| 2497 raise(signal_number); | |
| 2498 } | |
| 2499 | |
| 2500 /* | |
| 2501 * The following code is moved from os.cpp for making this | |
| 2502 * code platform specific, which it is by its very nature. | |
| 2503 */ | |
| 2504 | |
| 2505 // a counter for each possible signal value | |
| 2506 static int Sigexit = 0; | |
| 2507 static int Maxlibjsigsigs; | |
| 2508 static jint *pending_signals = NULL; | |
| 2509 static int *preinstalled_sigs = NULL; | |
| 2510 static struct sigaction *chainedsigactions = NULL; | |
| 2511 static sema_t sig_sem; | |
| 2512 typedef int (*version_getting_t)(); | |
| 2513 version_getting_t os::Solaris::get_libjsig_version = NULL; | |
| 2514 static int libjsigversion = NULL; | |
| 2515 | |
| 2516 int os::sigexitnum_pd() { | |
| 2517 assert(Sigexit > 0, "signal memory not yet initialized"); | |
| 2518 return Sigexit; | |
| 2519 } | |
| 2520 | |
| 2521 void os::Solaris::init_signal_mem() { | |
| 2522 // Initialize signal structures | |
| 2523 Maxsignum = SIGRTMAX; | |
| 2524 Sigexit = Maxsignum+1; | |
| 2525 assert(Maxsignum >0, "Unable to obtain max signal number"); | |
| 2526 | |
| 2527 Maxlibjsigsigs = Maxsignum; | |
| 2528 | |
| 2529 // pending_signals has one int per signal | |
| 2530 // The additional signal is for SIGEXIT - exit signal to signal_thread | |
| 6197 | 2531 pending_signals = (jint *)os::malloc(sizeof(jint) * (Sigexit+1), mtInternal); |
| 0 | 2532 memset(pending_signals, 0, (sizeof(jint) * (Sigexit+1))); |
| 2533 | |
| 2534 if (UseSignalChaining) { | |
| 2535 chainedsigactions = (struct sigaction *)malloc(sizeof(struct sigaction) | |
| 6197 | 2536 * (Maxsignum + 1), mtInternal); |
| 0 | 2537 memset(chainedsigactions, 0, (sizeof(struct sigaction) * (Maxsignum + 1))); |
| 6197 | 2538 preinstalled_sigs = (int *)os::malloc(sizeof(int) * (Maxsignum + 1), mtInternal); |
| 0 | 2539 memset(preinstalled_sigs, 0, (sizeof(int) * (Maxsignum + 1))); |
| 2540 } | |
| 6197 | 2541 ourSigFlags = (int*)malloc(sizeof(int) * (Maxsignum + 1 ), mtInternal); |
| 0 | 2542 memset(ourSigFlags, 0, sizeof(int) * (Maxsignum + 1)); |
| 2543 } | |
| 2544 | |
| 2545 void os::signal_init_pd() { | |
| 2546 int ret; | |
| 2547 | |
| 2548 ret = ::sema_init(&sig_sem, 0, NULL, NULL); | |
| 2549 assert(ret == 0, "sema_init() failed"); | |
| 2550 } | |
| 2551 | |
| 2552 void os::signal_notify(int signal_number) { | |
| 2553 int ret; | |
| 2554 | |
| 2555 Atomic::inc(&pending_signals[signal_number]); | |
| 2556 ret = ::sema_post(&sig_sem); | |
| 2557 assert(ret == 0, "sema_post() failed"); | |
| 2558 } | |
| 2559 | |
| 2560 static int check_pending_signals(bool wait_for_signal) { | |
| 2561 int ret; | |
| 2562 while (true) { | |
| 2563 for (int i = 0; i < Sigexit + 1; i++) { | |
| 2564 jint n = pending_signals[i]; | |
| 2565 if (n > 0 && n == Atomic::cmpxchg(n - 1, &pending_signals[i], n)) { | |
| 2566 return i; | |
| 2567 } | |
| 2568 } | |
| 2569 if (!wait_for_signal) { | |
| 2570 return -1; | |
| 2571 } | |
| 2572 JavaThread *thread = JavaThread::current(); | |
| 2573 ThreadBlockInVM tbivm(thread); | |
| 2574 | |
| 2575 bool threadIsSuspended; | |
| 2576 do { | |
| 2577 thread->set_suspend_equivalent(); | |
| 2578 // cleared by handle_special_suspend_equivalent_condition() or java_suspend_self() | |
| 2579 while((ret = ::sema_wait(&sig_sem)) == EINTR) | |
| 2580 ; | |
| 2581 assert(ret == 0, "sema_wait() failed"); | |
| 2582 | |
| 2583 // were we externally suspended while we were waiting? | |
| 2584 threadIsSuspended = thread->handle_special_suspend_equivalent_condition(); | |
| 2585 if (threadIsSuspended) { | |
| 2586 // | |
| 2587 // The semaphore has been incremented, but while we were waiting | |
| 2588 // another thread suspended us. We don't want to continue running | |
| 2589 // while suspended because that would surprise the thread that | |
| 2590 // suspended us. | |
| 2591 // | |
| 2592 ret = ::sema_post(&sig_sem); | |
| 2593 assert(ret == 0, "sema_post() failed"); | |
| 2594 | |
| 2595 thread->java_suspend_self(); | |
| 2596 } | |
| 2597 } while (threadIsSuspended); | |
| 2598 } | |
| 2599 } | |
| 2600 | |
| 2601 int os::signal_lookup() { | |
| 2602 return check_pending_signals(false); | |
| 2603 } | |
| 2604 | |
| 2605 int os::signal_wait() { | |
| 2606 return check_pending_signals(true); | |
| 2607 } | |
| 2608 | |
| 2609 //////////////////////////////////////////////////////////////////////////////// | |
| 2610 // Virtual Memory | |
| 2611 | |
| 2612 static int page_size = -1; | |
| 2613 | |
| 2614 // The mmap MAP_ALIGN flag is supported on Solaris 9 and later. init_2() will | |
| 2615 // clear this var if support is not available. | |
| 2616 static bool has_map_align = true; | |
| 2617 | |
| 2618 int os::vm_page_size() { | |
| 2619 assert(page_size != -1, "must call os::init"); | |
| 2620 return page_size; | |
| 2621 } | |
| 2622 | |
| 2623 // Solaris allocates memory by pages. | |
| 2624 int os::vm_allocation_granularity() { | |
| 2625 assert(page_size != -1, "must call os::init"); | |
| 2626 return page_size; | |
| 2627 } | |
| 2628 | |
|
10969
a837fa3d3f86
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dcubed
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diff
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|
2629 static bool recoverable_mmap_error(int err) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
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diff
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|
2630 // See if the error is one we can let the caller handle. This |
|
a837fa3d3f86
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dcubed
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10405
diff
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|
2631 // list of errno values comes from the Solaris mmap(2) man page. |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
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|
2632 switch (err) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
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diff
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|
2633 case EBADF: |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
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|
2634 case EINVAL: |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
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|
2635 case ENOTSUP: |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
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diff
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|
2636 // let the caller deal with these errors |
|
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8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
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|
2637 return true; |
|
a837fa3d3f86
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dcubed
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diff
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|
2638 |
|
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diff
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|
2639 default: |
|
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dcubed
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diff
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|
2640 // Any remaining errors on this OS can cause our reserved mapping |
|
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8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
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diff
changeset
|
2641 // to be lost. That can cause confusion where different data |
|
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dcubed
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diff
changeset
|
2642 // structures think they have the same memory mapped. The worst |
|
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8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
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10405
diff
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|
2643 // scenario is if both the VM and a library think they have the |
|
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dcubed
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diff
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|
2644 // same memory mapped. |
|
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8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
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diff
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|
2645 return false; |
|
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|
2646 } |
|
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|
2647 } |
|
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|
2648 |
|
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|
2649 static void warn_fail_commit_memory(char* addr, size_t bytes, bool exec, |
|
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|
2650 int err) { |
|
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diff
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|
2651 warning("INFO: os::commit_memory(" PTR_FORMAT ", " SIZE_FORMAT |
|
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diff
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|
2652 ", %d) failed; error='%s' (errno=%d)", addr, bytes, exec, |
|
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|
2653 strerror(err), err); |
|
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diff
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|
2654 } |
|
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diff
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|
2655 |
|
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diff
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|
2656 static void warn_fail_commit_memory(char* addr, size_t bytes, |
|
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|
2657 size_t alignment_hint, bool exec, |
|
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diff
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|
2658 int err) { |
|
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diff
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|
2659 warning("INFO: os::commit_memory(" PTR_FORMAT ", " SIZE_FORMAT |
|
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diff
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|
2660 ", " SIZE_FORMAT ", %d) failed; error='%s' (errno=%d)", addr, bytes, |
|
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|
2661 alignment_hint, exec, strerror(err), err); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2662 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2663 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2664 int os::Solaris::commit_memory_impl(char* addr, size_t bytes, bool exec) { |
| 656 | 2665 int prot = exec ? PROT_READ|PROT_WRITE|PROT_EXEC : PROT_READ|PROT_WRITE; |
| 0 | 2666 size_t size = bytes; |
| 3885 | 2667 char *res = Solaris::mmap_chunk(addr, size, MAP_PRIVATE|MAP_FIXED, prot); |
| 2668 if (res != NULL) { | |
| 2669 if (UseNUMAInterleaving) { | |
| 2670 numa_make_global(addr, bytes); | |
| 2671 } | |
|
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
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10405
diff
changeset
|
2672 return 0; |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2673 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2674 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2675 int err = errno; // save errno from mmap() call in mmap_chunk() |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2676 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2677 if (!recoverable_mmap_error(err)) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2678 warn_fail_commit_memory(addr, bytes, exec, err); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2679 vm_exit_out_of_memory(bytes, OOM_MMAP_ERROR, "committing reserved memory."); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2680 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2681 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2682 return err; |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2683 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2684 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2685 bool os::pd_commit_memory(char* addr, size_t bytes, bool exec) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
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diff
changeset
|
2686 return Solaris::commit_memory_impl(addr, bytes, exec) == 0; |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2687 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2688 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2689 void os::pd_commit_memory_or_exit(char* addr, size_t bytes, bool exec, |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
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diff
changeset
|
2690 const char* mesg) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2691 assert(mesg != NULL, "mesg must be specified"); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2692 int err = os::Solaris::commit_memory_impl(addr, bytes, exec); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2693 if (err != 0) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2694 // the caller wants all commit errors to exit with the specified mesg: |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2695 warn_fail_commit_memory(addr, bytes, exec, err); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2696 vm_exit_out_of_memory(bytes, OOM_MMAP_ERROR, mesg); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2697 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
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diff
changeset
|
2698 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2699 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2700 int os::Solaris::commit_memory_impl(char* addr, size_t bytes, |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2701 size_t alignment_hint, bool exec) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2702 int err = Solaris::commit_memory_impl(addr, bytes, exec); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2703 if (err == 0) { |
|
11111
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
2704 if (UseLargePages && (alignment_hint > (size_t)vm_page_size())) { |
| 0 | 2705 // If the large page size has been set and the VM |
| 2706 // is using large pages, use the large page size | |
| 2707 // if it is smaller than the alignment hint. This is | |
| 2708 // a case where the VM wants to use a larger alignment size | |
| 2709 // for its own reasons but still want to use large pages | |
| 2710 // (which is what matters to setting the mpss range. | |
| 2711 size_t page_size = 0; | |
| 2712 if (large_page_size() < alignment_hint) { | |
| 2713 assert(UseLargePages, "Expected to be here for large page use only"); | |
| 2714 page_size = large_page_size(); | |
| 2715 } else { | |
| 2716 // If the alignment hint is less than the large page | |
| 2717 // size, the VM wants a particular alignment (thus the hint) | |
| 2718 // for internal reasons. Try to set the mpss range using | |
| 2719 // the alignment_hint. | |
| 2720 page_size = alignment_hint; | |
| 2721 } | |
| 2722 // Since this is a hint, ignore any failures. | |
|
11111
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
2723 (void)Solaris::setup_large_pages(addr, bytes, page_size); |
| 0 | 2724 } |
|
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2725 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
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diff
changeset
|
2726 return err; |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2727 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2728 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2729 bool os::pd_commit_memory(char* addr, size_t bytes, size_t alignment_hint, |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2730 bool exec) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2731 return Solaris::commit_memory_impl(addr, bytes, alignment_hint, exec) == 0; |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2732 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2733 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2734 void os::pd_commit_memory_or_exit(char* addr, size_t bytes, |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2735 size_t alignment_hint, bool exec, |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2736 const char* mesg) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2737 assert(mesg != NULL, "mesg must be specified"); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2738 int err = os::Solaris::commit_memory_impl(addr, bytes, alignment_hint, exec); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2739 if (err != 0) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2740 // the caller wants all commit errors to exit with the specified mesg: |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2741 warn_fail_commit_memory(addr, bytes, alignment_hint, exec, err); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2742 vm_exit_out_of_memory(bytes, OOM_MMAP_ERROR, mesg); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2743 } |
| 0 | 2744 } |
| 2745 | |
| 2746 // Uncommit the pages in a specified region. | |
| 6197 | 2747 void os::pd_free_memory(char* addr, size_t bytes, size_t alignment_hint) { |
| 0 | 2748 if (madvise(addr, bytes, MADV_FREE) < 0) { |
| 2749 debug_only(warning("MADV_FREE failed.")); | |
| 2750 return; | |
| 2751 } | |
| 2752 } | |
| 2753 | |
| 6197 | 2754 bool os::pd_create_stack_guard_pages(char* addr, size_t size) { |
|
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2755 return os::commit_memory(addr, size, !ExecMem); |
|
1320
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1123
diff
changeset
|
2756 } |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1123
diff
changeset
|
2757 |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1123
diff
changeset
|
2758 bool os::remove_stack_guard_pages(char* addr, size_t size) { |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1123
diff
changeset
|
2759 return os::uncommit_memory(addr, size); |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1123
diff
changeset
|
2760 } |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1123
diff
changeset
|
2761 |
| 0 | 2762 // Change the page size in a given range. |
| 6197 | 2763 void os::pd_realign_memory(char *addr, size_t bytes, size_t alignment_hint) { |
| 0 | 2764 assert((intptr_t)addr % alignment_hint == 0, "Address should be aligned."); |
| 2765 assert((intptr_t)(addr + bytes) % alignment_hint == 0, "End should be aligned."); | |
|
11111
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
2766 if (UseLargePages) { |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
2767 Solaris::setup_large_pages(addr, bytes, alignment_hint); |
|
3292
c303b3532d4a
7037939: NUMA: Disable adaptive resizing if SHM large pages are used
iveresov
parents:
2304
diff
changeset
|
2768 } |
| 0 | 2769 } |
| 2770 | |
| 2771 // Tell the OS to make the range local to the first-touching LWP | |
| 141 | 2772 void os::numa_make_local(char *addr, size_t bytes, int lgrp_hint) { |
| 0 | 2773 assert((intptr_t)addr % os::vm_page_size() == 0, "Address should be page-aligned."); |
| 2774 if (madvise(addr, bytes, MADV_ACCESS_LWP) < 0) { | |
| 2775 debug_only(warning("MADV_ACCESS_LWP failed.")); | |
| 2776 } | |
| 2777 } | |
| 2778 | |
| 2779 // Tell the OS that this range would be accessed from different LWPs. | |
| 2780 void os::numa_make_global(char *addr, size_t bytes) { | |
| 2781 assert((intptr_t)addr % os::vm_page_size() == 0, "Address should be page-aligned."); | |
| 2782 if (madvise(addr, bytes, MADV_ACCESS_MANY) < 0) { | |
| 2783 debug_only(warning("MADV_ACCESS_MANY failed.")); | |
| 2784 } | |
| 2785 } | |
| 2786 | |
| 2787 // Get the number of the locality groups. | |
| 2788 size_t os::numa_get_groups_num() { | |
| 2789 size_t n = Solaris::lgrp_nlgrps(Solaris::lgrp_cookie()); | |
| 2790 return n != -1 ? n : 1; | |
| 2791 } | |
| 2792 | |
| 2793 // Get a list of leaf locality groups. A leaf lgroup is group that | |
| 2794 // doesn't have any children. Typical leaf group is a CPU or a CPU/memory | |
| 2795 // board. An LWP is assigned to one of these groups upon creation. | |
| 2796 size_t os::numa_get_leaf_groups(int *ids, size_t size) { | |
| 2797 if ((ids[0] = Solaris::lgrp_root(Solaris::lgrp_cookie())) == -1) { | |
| 2798 ids[0] = 0; | |
| 2799 return 1; | |
| 2800 } | |
| 2801 int result_size = 0, top = 1, bottom = 0, cur = 0; | |
| 2802 for (int k = 0; k < size; k++) { | |
| 2803 int r = Solaris::lgrp_children(Solaris::lgrp_cookie(), ids[cur], | |
| 2804 (Solaris::lgrp_id_t*)&ids[top], size - top); | |
| 2805 if (r == -1) { | |
| 2806 ids[0] = 0; | |
| 2807 return 1; | |
| 2808 } | |
| 2809 if (!r) { | |
|
144
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
2810 // That's a leaf node. |
| 0 | 2811 assert (bottom <= cur, "Sanity check"); |
|
144
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
2812 // Check if the node has memory |
|
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
2813 if (Solaris::lgrp_resources(Solaris::lgrp_cookie(), ids[cur], |
|
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
2814 NULL, 0, LGRP_RSRC_MEM) > 0) { |
|
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
2815 ids[bottom++] = ids[cur]; |
|
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
2816 } |
| 0 | 2817 } |
| 2818 top += r; | |
| 2819 cur++; | |
| 2820 } | |
|
268
d6340ab4105b
6723228: NUMA allocator: assert(lgrp_id != -1, "No lgrp_id set")
iveresov
parents:
267
diff
changeset
|
2821 if (bottom == 0) { |
|
d6340ab4105b
6723228: NUMA allocator: assert(lgrp_id != -1, "No lgrp_id set")
iveresov
parents:
267
diff
changeset
|
2822 // Handle a situation, when the OS reports no memory available. |
|
d6340ab4105b
6723228: NUMA allocator: assert(lgrp_id != -1, "No lgrp_id set")
iveresov
parents:
267
diff
changeset
|
2823 // Assume UMA architecture. |
|
d6340ab4105b
6723228: NUMA allocator: assert(lgrp_id != -1, "No lgrp_id set")
iveresov
parents:
267
diff
changeset
|
2824 ids[0] = 0; |
|
d6340ab4105b
6723228: NUMA allocator: assert(lgrp_id != -1, "No lgrp_id set")
iveresov
parents:
267
diff
changeset
|
2825 return 1; |
|
d6340ab4105b
6723228: NUMA allocator: assert(lgrp_id != -1, "No lgrp_id set")
iveresov
parents:
267
diff
changeset
|
2826 } |
| 0 | 2827 return bottom; |
| 2828 } | |
| 2829 | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
144
diff
changeset
|
2830 // Detect the topology change. Typically happens during CPU plugging-unplugging. |
| 0 | 2831 bool os::numa_topology_changed() { |
| 2832 int is_stale = Solaris::lgrp_cookie_stale(Solaris::lgrp_cookie()); | |
| 2833 if (is_stale != -1 && is_stale) { | |
| 2834 Solaris::lgrp_fini(Solaris::lgrp_cookie()); | |
| 2835 Solaris::lgrp_cookie_t c = Solaris::lgrp_init(Solaris::LGRP_VIEW_CALLER); | |
| 2836 assert(c != 0, "Failure to initialize LGRP API"); | |
| 2837 Solaris::set_lgrp_cookie(c); | |
| 2838 return true; | |
| 2839 } | |
| 2840 return false; | |
| 2841 } | |
| 2842 | |
| 2843 // Get the group id of the current LWP. | |
| 2844 int os::numa_get_group_id() { | |
|
144
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141
diff
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|
2845 int lgrp_id = Solaris::lgrp_home(P_LWPID, P_MYID); |
| 0 | 2846 if (lgrp_id == -1) { |
| 2847 return 0; | |
| 2848 } | |
|
144
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141
diff
changeset
|
2849 const int size = os::numa_get_groups_num(); |
|
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141
diff
changeset
|
2850 int *ids = (int*)alloca(size * sizeof(int)); |
|
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6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
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141
diff
changeset
|
2851 |
|
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6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
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diff
changeset
|
2852 // Get the ids of all lgroups with memory; r is the count. |
|
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6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
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|
2853 int r = Solaris::lgrp_resources(Solaris::lgrp_cookie(), lgrp_id, |
|
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141
diff
changeset
|
2854 (Solaris::lgrp_id_t*)ids, size, LGRP_RSRC_MEM); |
|
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6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
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141
diff
changeset
|
2855 if (r <= 0) { |
|
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6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
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diff
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|
2856 return 0; |
|
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141
diff
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|
2857 } |
|
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6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
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changeset
|
2858 return ids[os::random() % r]; |
| 0 | 2859 } |
| 2860 | |
| 2861 // Request information about the page. | |
| 2862 bool os::get_page_info(char *start, page_info* info) { | |
| 2863 const uint_t info_types[] = { MEMINFO_VLGRP, MEMINFO_VPAGESIZE }; | |
| 2864 uint64_t addr = (uintptr_t)start; | |
| 2865 uint64_t outdata[2]; | |
| 2866 uint_t validity = 0; | |
| 2867 | |
| 2868 if (os::Solaris::meminfo(&addr, 1, info_types, 2, outdata, &validity) < 0) { | |
| 2869 return false; | |
| 2870 } | |
| 2871 | |
| 2872 info->size = 0; | |
| 2873 info->lgrp_id = -1; | |
| 2874 | |
| 2875 if ((validity & 1) != 0) { | |
| 2876 if ((validity & 2) != 0) { | |
| 2877 info->lgrp_id = outdata[0]; | |
| 2878 } | |
| 2879 if ((validity & 4) != 0) { | |
| 2880 info->size = outdata[1]; | |
| 2881 } | |
| 2882 return true; | |
| 2883 } | |
| 2884 return false; | |
| 2885 } | |
| 2886 | |
| 2887 // Scan the pages from start to end until a page different than | |
| 2888 // the one described in the info parameter is encountered. | |
| 2889 char *os::scan_pages(char *start, char* end, page_info* page_expected, page_info* page_found) { | |
| 2890 const uint_t info_types[] = { MEMINFO_VLGRP, MEMINFO_VPAGESIZE }; | |
| 2891 const size_t types = sizeof(info_types) / sizeof(info_types[0]); | |
| 17707 | 2892 uint64_t addrs[MAX_MEMINFO_CNT], outdata[types * MAX_MEMINFO_CNT + 1]; |
| 0 | 2893 uint_t validity[MAX_MEMINFO_CNT]; |
| 2894 | |
| 2895 size_t page_size = MAX2((size_t)os::vm_page_size(), page_expected->size); | |
| 2896 uint64_t p = (uint64_t)start; | |
| 2897 while (p < (uint64_t)end) { | |
| 2898 addrs[0] = p; | |
| 2899 size_t addrs_count = 1; | |
|
8739
ca9580859cf4
8004697: SIGSEGV on Solaris sparc with -XX:+UseNUMA
stefank
parents:
8067
diff
changeset
|
2900 while (addrs_count < MAX_MEMINFO_CNT && addrs[addrs_count - 1] + page_size < (uint64_t)end) { |
| 0 | 2901 addrs[addrs_count] = addrs[addrs_count - 1] + page_size; |
| 2902 addrs_count++; | |
| 2903 } | |
| 2904 | |
| 2905 if (os::Solaris::meminfo(addrs, addrs_count, info_types, types, outdata, validity) < 0) { | |
| 2906 return NULL; | |
| 2907 } | |
| 2908 | |
| 2909 size_t i = 0; | |
| 2910 for (; i < addrs_count; i++) { | |
| 2911 if ((validity[i] & 1) != 0) { | |
| 2912 if ((validity[i] & 4) != 0) { | |
| 2913 if (outdata[types * i + 1] != page_expected->size) { | |
| 2914 break; | |
| 2915 } | |
| 2916 } else | |
| 2917 if (page_expected->size != 0) { | |
| 2918 break; | |
| 2919 } | |
| 2920 | |
| 2921 if ((validity[i] & 2) != 0 && page_expected->lgrp_id > 0) { | |
| 2922 if (outdata[types * i] != page_expected->lgrp_id) { | |
| 2923 break; | |
| 2924 } | |
| 2925 } | |
| 2926 } else { | |
| 2927 return NULL; | |
| 2928 } | |
| 2929 } | |
| 2930 | |
| 17707 | 2931 if (i < addrs_count) { |
| 0 | 2932 if ((validity[i] & 2) != 0) { |
| 2933 page_found->lgrp_id = outdata[types * i]; | |
| 2934 } else { | |
| 2935 page_found->lgrp_id = -1; | |
| 2936 } | |
| 2937 if ((validity[i] & 4) != 0) { | |
| 2938 page_found->size = outdata[types * i + 1]; | |
| 2939 } else { | |
| 2940 page_found->size = 0; | |
| 2941 } | |
| 2942 return (char*)addrs[i]; | |
| 2943 } | |
| 2944 | |
| 2945 p = addrs[addrs_count - 1] + page_size; | |
| 2946 } | |
| 2947 return end; | |
| 2948 } | |
| 2949 | |
| 6197 | 2950 bool os::pd_uncommit_memory(char* addr, size_t bytes) { |
| 0 | 2951 size_t size = bytes; |
| 2952 // Map uncommitted pages PROT_NONE so we fail early if we touch an | |
| 2953 // uncommitted page. Otherwise, the read/write might succeed if we | |
| 2954 // have enough swap space to back the physical page. | |
| 2955 return | |
| 2956 NULL != Solaris::mmap_chunk(addr, size, | |
| 2957 MAP_PRIVATE|MAP_FIXED|MAP_NORESERVE, | |
| 2958 PROT_NONE); | |
| 2959 } | |
| 2960 | |
| 2961 char* os::Solaris::mmap_chunk(char *addr, size_t size, int flags, int prot) { | |
| 2962 char *b = (char *)mmap(addr, size, prot, flags, os::Solaris::_dev_zero_fd, 0); | |
| 2963 | |
| 2964 if (b == MAP_FAILED) { | |
| 2965 return NULL; | |
| 2966 } | |
| 2967 return b; | |
| 2968 } | |
| 2969 | |
|
60
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
2970 char* os::Solaris::anon_mmap(char* requested_addr, size_t bytes, size_t alignment_hint, bool fixed) { |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
2971 char* addr = requested_addr; |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
2972 int flags = MAP_PRIVATE | MAP_NORESERVE; |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
2973 |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
2974 assert(!(fixed && (alignment_hint > 0)), "alignment hint meaningless with fixed mmap"); |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
2975 |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
2976 if (fixed) { |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
2977 flags |= MAP_FIXED; |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
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0
diff
changeset
|
2978 } else if (has_map_align && (alignment_hint > (size_t) vm_page_size())) { |
| 0 | 2979 flags |= MAP_ALIGN; |
| 2980 addr = (char*) alignment_hint; | |
| 2981 } | |
| 2982 | |
| 2983 // Map uncommitted pages PROT_NONE so we fail early if we touch an | |
| 2984 // uncommitted page. Otherwise, the read/write might succeed if we | |
| 2985 // have enough swap space to back the physical page. | |
|
60
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6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
2986 return mmap_chunk(addr, bytes, flags, PROT_NONE); |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
2987 } |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
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0
diff
changeset
|
2988 |
| 6197 | 2989 char* os::pd_reserve_memory(size_t bytes, char* requested_addr, size_t alignment_hint) { |
|
60
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6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
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0
diff
changeset
|
2990 char* addr = Solaris::anon_mmap(requested_addr, bytes, alignment_hint, (requested_addr != NULL)); |
| 0 | 2991 |
| 2992 guarantee(requested_addr == NULL || requested_addr == addr, | |
| 2993 "OS failed to return requested mmap address."); | |
| 2994 return addr; | |
| 2995 } | |
| 2996 | |
| 2997 // Reserve memory at an arbitrary address, only if that area is | |
| 2998 // available (and not reserved for something else). | |
| 2999 | |
| 6197 | 3000 char* os::pd_attempt_reserve_memory_at(size_t bytes, char* requested_addr) { |
| 0 | 3001 const int max_tries = 10; |
| 3002 char* base[max_tries]; | |
| 3003 size_t size[max_tries]; | |
| 3004 | |
| 3005 // Solaris adds a gap between mmap'ed regions. The size of the gap | |
| 3006 // is dependent on the requested size and the MMU. Our initial gap | |
| 3007 // value here is just a guess and will be corrected later. | |
| 3008 bool had_top_overlap = false; | |
| 3009 bool have_adjusted_gap = false; | |
| 3010 size_t gap = 0x400000; | |
| 3011 | |
| 3012 // Assert only that the size is a multiple of the page size, since | |
| 3013 // that's all that mmap requires, and since that's all we really know | |
| 3014 // about at this low abstraction level. If we need higher alignment, | |
| 3015 // we can either pass an alignment to this method or verify alignment | |
| 3016 // in one of the methods further up the call chain. See bug 5044738. | |
| 3017 assert(bytes % os::vm_page_size() == 0, "reserving unexpected size block"); | |
| 3018 | |
|
60
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3019 // Since snv_84, Solaris attempts to honor the address hint - see 5003415. |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3020 // Give it a try, if the kernel honors the hint we can return immediately. |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3021 char* addr = Solaris::anon_mmap(requested_addr, bytes, 0, false); |
|
6882
716c64bda5ba
7199092: NMT: NMT needs to deal overlapped virtual memory ranges
zgu
parents:
6854
diff
changeset
|
3022 |
|
60
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3023 volatile int err = errno; |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
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0
diff
changeset
|
3024 if (addr == requested_addr) { |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
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parents:
0
diff
changeset
|
3025 return addr; |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3026 } else if (addr != NULL) { |
|
6882
716c64bda5ba
7199092: NMT: NMT needs to deal overlapped virtual memory ranges
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6854
diff
changeset
|
3027 pd_unmap_memory(addr, bytes); |
|
60
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3028 } |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3029 |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
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0
diff
changeset
|
3030 if (PrintMiscellaneous && Verbose) { |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3031 char buf[256]; |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
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0
diff
changeset
|
3032 buf[0] = '\0'; |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
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0
diff
changeset
|
3033 if (addr == NULL) { |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3034 jio_snprintf(buf, sizeof(buf), ": %s", strerror(err)); |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
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0
diff
changeset
|
3035 } |
| 2080 | 3036 warning("attempt_reserve_memory_at: couldn't reserve " SIZE_FORMAT " bytes at " |
|
60
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sbohne
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0
diff
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|
3037 PTR_FORMAT ": reserve_memory_helper returned " PTR_FORMAT |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3038 "%s", bytes, requested_addr, addr, buf); |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3039 } |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3040 |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3041 // Address hint method didn't work. Fall back to the old method. |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3042 // In theory, once SNV becomes our oldest supported platform, this |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3043 // code will no longer be needed. |
|
8d84e28e68ba
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sbohne
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0
diff
changeset
|
3044 // |
| 0 | 3045 // Repeatedly allocate blocks until the block is allocated at the |
| 3046 // right spot. Give up after max_tries. | |
| 3047 int i; | |
| 3048 for (i = 0; i < max_tries; ++i) { | |
| 3049 base[i] = reserve_memory(bytes); | |
| 3050 | |
| 3051 if (base[i] != NULL) { | |
| 3052 // Is this the block we wanted? | |
| 3053 if (base[i] == requested_addr) { | |
| 3054 size[i] = bytes; | |
| 3055 break; | |
| 3056 } | |
| 3057 | |
| 3058 // check that the gap value is right | |
| 3059 if (had_top_overlap && !have_adjusted_gap) { | |
| 3060 size_t actual_gap = base[i-1] - base[i] - bytes; | |
| 3061 if (gap != actual_gap) { | |
| 3062 // adjust the gap value and retry the last 2 allocations | |
| 3063 assert(i > 0, "gap adjustment code problem"); | |
| 3064 have_adjusted_gap = true; // adjust the gap only once, just in case | |
| 3065 gap = actual_gap; | |
| 3066 if (PrintMiscellaneous && Verbose) { | |
| 3067 warning("attempt_reserve_memory_at: adjusted gap to 0x%lx", gap); | |
| 3068 } | |
| 3069 unmap_memory(base[i], bytes); | |
| 3070 unmap_memory(base[i-1], size[i-1]); | |
| 3071 i-=2; | |
| 3072 continue; | |
| 3073 } | |
| 3074 } | |
| 3075 | |
| 3076 // Does this overlap the block we wanted? Give back the overlapped | |
| 3077 // parts and try again. | |
| 3078 // | |
| 3079 // There is still a bug in this code: if top_overlap == bytes, | |
| 3080 // the overlap is offset from requested region by the value of gap. | |
| 3081 // In this case giving back the overlapped part will not work, | |
| 3082 // because we'll give back the entire block at base[i] and | |
| 3083 // therefore the subsequent allocation will not generate a new gap. | |
| 3084 // This could be fixed with a new algorithm that used larger | |
| 3085 // or variable size chunks to find the requested region - | |
| 3086 // but such a change would introduce additional complications. | |
| 3087 // It's rare enough that the planets align for this bug, | |
| 3088 // so we'll just wait for a fix for 6204603/5003415 which | |
| 3089 // will provide a mmap flag to allow us to avoid this business. | |
| 3090 | |
| 3091 size_t top_overlap = requested_addr + (bytes + gap) - base[i]; | |
| 3092 if (top_overlap >= 0 && top_overlap < bytes) { | |
| 3093 had_top_overlap = true; | |
| 3094 unmap_memory(base[i], top_overlap); | |
| 3095 base[i] += top_overlap; | |
| 3096 size[i] = bytes - top_overlap; | |
| 3097 } else { | |
| 3098 size_t bottom_overlap = base[i] + bytes - requested_addr; | |
| 3099 if (bottom_overlap >= 0 && bottom_overlap < bytes) { | |
| 3100 if (PrintMiscellaneous && Verbose && bottom_overlap == 0) { | |
| 3101 warning("attempt_reserve_memory_at: possible alignment bug"); | |
| 3102 } | |
| 3103 unmap_memory(requested_addr, bottom_overlap); | |
| 3104 size[i] = bytes - bottom_overlap; | |
| 3105 } else { | |
| 3106 size[i] = bytes; | |
| 3107 } | |
| 3108 } | |
| 3109 } | |
| 3110 } | |
| 3111 | |
| 3112 // Give back the unused reserved pieces. | |
| 3113 | |
| 3114 for (int j = 0; j < i; ++j) { | |
| 3115 if (base[j] != NULL) { | |
| 3116 unmap_memory(base[j], size[j]); | |
| 3117 } | |
| 3118 } | |
| 3119 | |
| 3120 return (i < max_tries) ? requested_addr : NULL; | |
| 3121 } | |
| 3122 | |
| 6197 | 3123 bool os::pd_release_memory(char* addr, size_t bytes) { |
| 0 | 3124 size_t size = bytes; |
| 3125 return munmap(addr, size) == 0; | |
| 3126 } | |
| 3127 | |
| 3128 static bool solaris_mprotect(char* addr, size_t bytes, int prot) { | |
| 3129 assert(addr == (char*)align_size_down((uintptr_t)addr, os::vm_page_size()), | |
| 3130 "addr must be page aligned"); | |
| 3131 int retVal = mprotect(addr, bytes, prot); | |
| 3132 return retVal == 0; | |
| 3133 } | |
| 3134 | |
|
237
1fdb98a17101
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coleenp
parents:
196
diff
changeset
|
3135 // Protect memory (Used to pass readonly pages through |
| 0 | 3136 // JNI GetArray<type>Elements with empty arrays.) |
|
477
24fda36852ce
6727377: VM stack guard pages on Windows should PAGE_READWRITE not PAGE_EXECUTE_READWRITE
coleenp
parents:
462
diff
changeset
|
3137 // Also, used for serialization page and for compressed oops null pointer |
|
24fda36852ce
6727377: VM stack guard pages on Windows should PAGE_READWRITE not PAGE_EXECUTE_READWRITE
coleenp
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462
diff
changeset
|
3138 // checking. |
|
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diff
changeset
|
3139 bool os::protect_memory(char* addr, size_t bytes, ProtType prot, |
|
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196
diff
changeset
|
3140 bool is_committed) { |
|
1fdb98a17101
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196
diff
changeset
|
3141 unsigned int p = 0; |
|
1fdb98a17101
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coleenp
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196
diff
changeset
|
3142 switch (prot) { |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3143 case MEM_PROT_NONE: p = PROT_NONE; break; |
|
1fdb98a17101
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coleenp
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196
diff
changeset
|
3144 case MEM_PROT_READ: p = PROT_READ; break; |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
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196
diff
changeset
|
3145 case MEM_PROT_RW: p = PROT_READ|PROT_WRITE; break; |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
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196
diff
changeset
|
3146 case MEM_PROT_RWX: p = PROT_READ|PROT_WRITE|PROT_EXEC; break; |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3147 default: |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3148 ShouldNotReachHere(); |
|
1fdb98a17101
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coleenp
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196
diff
changeset
|
3149 } |
|
1fdb98a17101
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coleenp
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196
diff
changeset
|
3150 // is_committed is unused. |
|
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diff
changeset
|
3151 return solaris_mprotect(addr, bytes, p); |
| 0 | 3152 } |
| 3153 | |
| 3154 // guard_memory and unguard_memory only happens within stack guard pages. | |
| 3155 // Since ISM pertains only to the heap, guard and unguard memory should not | |
| 3156 /// happen with an ISM region. | |
| 3157 bool os::guard_memory(char* addr, size_t bytes) { | |
| 3158 return solaris_mprotect(addr, bytes, PROT_NONE); | |
| 3159 } | |
| 3160 | |
| 3161 bool os::unguard_memory(char* addr, size_t bytes) { | |
|
477
24fda36852ce
6727377: VM stack guard pages on Windows should PAGE_READWRITE not PAGE_EXECUTE_READWRITE
coleenp
parents:
462
diff
changeset
|
3162 return solaris_mprotect(addr, bytes, PROT_READ|PROT_WRITE); |
| 0 | 3163 } |
| 3164 | |
| 3165 // Large page support | |
| 3166 static size_t _large_page_size = 0; | |
| 3167 | |
| 3168 // Insertion sort for small arrays (descending order). | |
| 3169 static void insertion_sort_descending(size_t* array, int len) { | |
| 3170 for (int i = 0; i < len; i++) { | |
| 3171 size_t val = array[i]; | |
| 3172 for (size_t key = i; key > 0 && array[key - 1] < val; --key) { | |
| 3173 size_t tmp = array[key]; | |
| 3174 array[key] = array[key - 1]; | |
| 3175 array[key - 1] = tmp; | |
| 3176 } | |
| 3177 } | |
| 3178 } | |
| 3179 | |
|
11111
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
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10986
diff
changeset
|
3180 bool os::Solaris::mpss_sanity_check(bool warn, size_t* page_size) { |
| 0 | 3181 const unsigned int usable_count = VM_Version::page_size_count(); |
| 3182 if (usable_count == 1) { | |
| 3183 return false; | |
| 3184 } | |
| 3185 | |
| 3859 | 3186 // Find the right getpagesizes interface. When solaris 11 is the minimum |
| 3187 // build platform, getpagesizes() (without the '2') can be called directly. | |
| 3188 typedef int (*gps_t)(size_t[], int); | |
| 3189 gps_t gps_func = CAST_TO_FN_PTR(gps_t, dlsym(RTLD_DEFAULT, "getpagesizes2")); | |
| 3190 if (gps_func == NULL) { | |
| 3191 gps_func = CAST_TO_FN_PTR(gps_t, dlsym(RTLD_DEFAULT, "getpagesizes")); | |
| 3192 if (gps_func == NULL) { | |
| 3193 if (warn) { | |
| 3194 warning("MPSS is not supported by the operating system."); | |
| 3195 } | |
| 3196 return false; | |
| 3197 } | |
| 3198 } | |
| 3199 | |
| 0 | 3200 // Fill the array of page sizes. |
| 3859 | 3201 int n = (*gps_func)(_page_sizes, page_sizes_max); |
| 0 | 3202 assert(n > 0, "Solaris bug?"); |
| 3859 | 3203 |
| 0 | 3204 if (n == page_sizes_max) { |
| 3205 // Add a sentinel value (necessary only if the array was completely filled | |
| 3206 // since it is static (zeroed at initialization)). | |
| 3207 _page_sizes[--n] = 0; | |
| 3208 DEBUG_ONLY(warning("increase the size of the os::_page_sizes array.");) | |
| 3209 } | |
| 3210 assert(_page_sizes[n] == 0, "missing sentinel"); | |
| 3859 | 3211 trace_page_sizes("available page sizes", _page_sizes, n); |
| 0 | 3212 |
| 3213 if (n == 1) return false; // Only one page size available. | |
| 3214 | |
| 3215 // Skip sizes larger than 4M (or LargePageSizeInBytes if it was set) and | |
| 3216 // select up to usable_count elements. First sort the array, find the first | |
| 3217 // acceptable value, then copy the usable sizes to the top of the array and | |
| 3218 // trim the rest. Make sure to include the default page size :-). | |
| 3219 // | |
| 3220 // A better policy could get rid of the 4M limit by taking the sizes of the | |
| 3221 // important VM memory regions (java heap and possibly the code cache) into | |
| 3222 // account. | |
| 3223 insertion_sort_descending(_page_sizes, n); | |
| 3224 const size_t size_limit = | |
| 3225 FLAG_IS_DEFAULT(LargePageSizeInBytes) ? 4 * M : LargePageSizeInBytes; | |
| 3226 int beg; | |
| 3227 for (beg = 0; beg < n && _page_sizes[beg] > size_limit; ++beg) /* empty */ ; | |
| 3228 const int end = MIN2((int)usable_count, n) - 1; | |
| 3229 for (int cur = 0; cur < end; ++cur, ++beg) { | |
| 3230 _page_sizes[cur] = _page_sizes[beg]; | |
| 3231 } | |
| 3232 _page_sizes[end] = vm_page_size(); | |
| 3233 _page_sizes[end + 1] = 0; | |
| 3234 | |
| 3235 if (_page_sizes[end] > _page_sizes[end - 1]) { | |
| 3236 // Default page size is not the smallest; sort again. | |
| 3237 insertion_sort_descending(_page_sizes, end + 1); | |
| 3238 } | |
| 3239 *page_size = _page_sizes[0]; | |
| 3240 | |
| 3859 | 3241 trace_page_sizes("usable page sizes", _page_sizes, end + 1); |
| 0 | 3242 return true; |
| 3243 } | |
| 3244 | |
|
3318
188c9a5d6a6d
7040485: Use transparent huge page on linux by default
iveresov
parents:
3292
diff
changeset
|
3245 void os::large_page_init() { |
|
11111
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parents:
10986
diff
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|
3246 if (UseLargePages) { |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
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parents:
10986
diff
changeset
|
3247 // print a warning if any large page related flag is specified on command line |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
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parents:
10986
diff
changeset
|
3248 bool warn_on_failure = !FLAG_IS_DEFAULT(UseLargePages) || |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
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parents:
10986
diff
changeset
|
3249 !FLAG_IS_DEFAULT(LargePageSizeInBytes); |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3250 |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3251 UseLargePages = Solaris::mpss_sanity_check(warn_on_failure, &_large_page_size); |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
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parents:
10986
diff
changeset
|
3252 } |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3253 } |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3254 |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3255 bool os::Solaris::setup_large_pages(caddr_t start, size_t bytes, size_t align) { |
| 0 | 3256 // Signal to OS that we want large pages for addresses |
| 3257 // from addr, addr + bytes | |
| 3258 struct memcntl_mha mpss_struct; | |
| 3259 mpss_struct.mha_cmd = MHA_MAPSIZE_VA; | |
| 3260 mpss_struct.mha_pagesize = align; | |
| 3261 mpss_struct.mha_flags = 0; | |
|
11111
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3262 // Upon successful completion, memcntl() returns 0 |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3263 if (memcntl(start, bytes, MC_HAT_ADVISE, (caddr_t) &mpss_struct, 0, 0)) { |
| 0 | 3264 debug_only(warning("Attempt to use MPSS failed.")); |
| 3265 return false; | |
| 3266 } | |
| 3267 return true; | |
| 3268 } | |
| 3269 | |
|
12110
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
11112
diff
changeset
|
3270 char* os::reserve_memory_special(size_t size, size_t alignment, char* addr, bool exec) { |
|
11111
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3271 fatal("os::reserve_memory_special should not be called on Solaris."); |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3272 return NULL; |
| 0 | 3273 } |
| 3274 | |
| 3275 bool os::release_memory_special(char* base, size_t bytes) { | |
|
11111
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3276 fatal("os::release_memory_special should not be called on Solaris."); |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3277 return false; |
| 0 | 3278 } |
| 3279 | |
| 3280 size_t os::large_page_size() { | |
| 3281 return _large_page_size; | |
| 3282 } | |
| 3283 | |
| 3284 // MPSS allows application to commit large page memory on demand; with ISM | |
| 3285 // the entire memory region must be allocated as shared memory. | |
| 3286 bool os::can_commit_large_page_memory() { | |
|
11111
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3287 return true; |
| 0 | 3288 } |
| 3289 | |
|
79
82db0859acbe
6642862: Code cache allocation fails with large pages after 6588638
jcoomes
parents:
61
diff
changeset
|
3290 bool os::can_execute_large_page_memory() { |
|
11111
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3291 return true; |
|
79
82db0859acbe
6642862: Code cache allocation fails with large pages after 6588638
jcoomes
parents:
61
diff
changeset
|
3292 } |
|
82db0859acbe
6642862: Code cache allocation fails with large pages after 6588638
jcoomes
parents:
61
diff
changeset
|
3293 |
| 0 | 3294 static int os_sleep(jlong millis, bool interruptible) { |
| 3295 const jlong limit = INT_MAX; | |
| 3296 jlong prevtime; | |
| 3297 int res; | |
| 3298 | |
| 3299 while (millis > limit) { | |
| 3300 if ((res = os_sleep(limit, interruptible)) != OS_OK) | |
| 3301 return res; | |
| 3302 millis -= limit; | |
| 3303 } | |
| 3304 | |
| 3305 // Restart interrupted polls with new parameters until the proper delay | |
| 3306 // has been completed. | |
| 3307 | |
| 3308 prevtime = getTimeMillis(); | |
| 3309 | |
| 3310 while (millis > 0) { | |
| 3311 jlong newtime; | |
| 3312 | |
| 3313 if (!interruptible) { | |
| 3314 // Following assert fails for os::yield_all: | |
| 3315 // assert(!thread->is_Java_thread(), "must not be java thread"); | |
| 3316 res = poll(NULL, 0, millis); | |
| 3317 } else { | |
| 3318 JavaThread *jt = JavaThread::current(); | |
| 3319 | |
| 3320 INTERRUPTIBLE_NORESTART_VM_ALWAYS(poll(NULL, 0, millis), res, jt, | |
| 3321 os::Solaris::clear_interrupted); | |
| 3322 } | |
| 3323 | |
| 3324 // INTERRUPTIBLE_NORESTART_VM_ALWAYS returns res == OS_INTRPT for | |
| 3325 // thread.Interrupt. | |
| 3326 | |
| 1967 | 3327 // See c/r 6751923. Poll can return 0 before time |
| 3328 // has elapsed if time is set via clock_settime (as NTP does). | |
| 3329 // res == 0 if poll timed out (see man poll RETURN VALUES) | |
| 3330 // using the logic below checks that we really did | |
| 3331 // sleep at least "millis" if not we'll sleep again. | |
| 3332 if( ( res == 0 ) || ((res == OS_ERR) && (errno == EINTR))) { | |
| 0 | 3333 newtime = getTimeMillis(); |
| 3334 assert(newtime >= prevtime, "time moving backwards"); | |
| 3335 /* Doing prevtime and newtime in microseconds doesn't help precision, | |
| 3336 and trying to round up to avoid lost milliseconds can result in a | |
| 3337 too-short delay. */ | |
| 3338 millis -= newtime - prevtime; | |
| 3339 if(millis <= 0) | |
| 3340 return OS_OK; | |
| 3341 prevtime = newtime; | |
| 3342 } else | |
| 3343 return res; | |
| 3344 } | |
| 3345 | |
| 3346 return OS_OK; | |
| 3347 } | |
| 3348 | |
| 3349 // Read calls from inside the vm need to perform state transitions | |
| 3350 size_t os::read(int fd, void *buf, unsigned int nBytes) { | |
| 3351 INTERRUPTIBLE_RETURN_INT_VM(::read(fd, buf, nBytes), os::Solaris::clear_interrupted); | |
| 3352 } | |
| 3353 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3354 size_t os::restartable_read(int fd, void *buf, unsigned int nBytes) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3355 INTERRUPTIBLE_RETURN_INT(::read(fd, buf, nBytes), os::Solaris::clear_interrupted); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3356 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3357 |
| 0 | 3358 int os::sleep(Thread* thread, jlong millis, bool interruptible) { |
| 3359 assert(thread == Thread::current(), "thread consistency check"); | |
| 3360 | |
| 3361 // TODO-FIXME: this should be removed. | |
| 3362 // On Solaris machines (especially 2.5.1) we found that sometimes the VM gets into a live lock | |
| 3363 // situation with a JavaThread being starved out of a lwp. The kernel doesn't seem to generate | |
| 3364 // a SIGWAITING signal which would enable the threads library to create a new lwp for the starving | |
| 3365 // thread. We suspect that because the Watcher thread keeps waking up at periodic intervals the kernel | |
| 3366 // is fooled into believing that the system is making progress. In the code below we block the | |
| 3367 // the watcher thread while safepoint is in progress so that it would not appear as though the | |
| 3368 // system is making progress. | |
| 3369 if (!Solaris::T2_libthread() && | |
| 3370 thread->is_Watcher_thread() && SafepointSynchronize::is_synchronizing() && !Arguments::has_profile()) { | |
| 3371 // We now try to acquire the threads lock. Since this lock is held by the VM thread during | |
| 3372 // the entire safepoint, the watcher thread will line up here during the safepoint. | |
| 3373 Threads_lock->lock_without_safepoint_check(); | |
| 3374 Threads_lock->unlock(); | |
| 3375 } | |
| 3376 | |
| 3377 if (thread->is_Java_thread()) { | |
| 3378 // This is a JavaThread so we honor the _thread_blocked protocol | |
| 3379 // even for sleeps of 0 milliseconds. This was originally done | |
| 3380 // as a workaround for bug 4338139. However, now we also do it | |
| 3381 // to honor the suspend-equivalent protocol. | |
| 3382 | |
| 3383 JavaThread *jt = (JavaThread *) thread; | |
| 3384 ThreadBlockInVM tbivm(jt); | |
| 3385 | |
| 3386 jt->set_suspend_equivalent(); | |
| 3387 // cleared by handle_special_suspend_equivalent_condition() or | |
| 3388 // java_suspend_self() via check_and_wait_while_suspended() | |
| 3389 | |
| 3390 int ret_code; | |
| 3391 if (millis <= 0) { | |
| 3392 thr_yield(); | |
| 3393 ret_code = 0; | |
| 3394 } else { | |
| 3395 // The original sleep() implementation did not create an | |
| 3396 // OSThreadWaitState helper for sleeps of 0 milliseconds. | |
| 3397 // I'm preserving that decision for now. | |
| 3398 OSThreadWaitState osts(jt->osthread(), false /* not Object.wait() */); | |
| 3399 | |
| 3400 ret_code = os_sleep(millis, interruptible); | |
| 3401 } | |
| 3402 | |
| 3403 // were we externally suspended while we were waiting? | |
| 3404 jt->check_and_wait_while_suspended(); | |
| 3405 | |
| 3406 return ret_code; | |
| 3407 } | |
| 3408 | |
| 3409 // non-JavaThread from this point on: | |
| 3410 | |
| 3411 if (millis <= 0) { | |
| 3412 thr_yield(); | |
| 3413 return 0; | |
| 3414 } | |
| 3415 | |
| 3416 OSThreadWaitState osts(thread->osthread(), false /* not Object.wait() */); | |
| 3417 | |
| 3418 return os_sleep(millis, interruptible); | |
| 3419 } | |
| 3420 | |
|
17706
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
dsimms
parents:
17684
diff
changeset
|
3421 void os::naked_short_sleep(jlong ms) { |
|
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
dsimms
parents:
17684
diff
changeset
|
3422 assert(ms < 1000, "Un-interruptable sleep, short time use only"); |
|
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
dsimms
parents:
17684
diff
changeset
|
3423 |
|
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
dsimms
parents:
17684
diff
changeset
|
3424 // usleep is deprecated and removed from POSIX, in favour of nanosleep, but |
|
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
dsimms
parents:
17684
diff
changeset
|
3425 // Solaris requires -lrt for this. |
|
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
dsimms
parents:
17684
diff
changeset
|
3426 usleep((ms * 1000)); |
|
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
dsimms
parents:
17684
diff
changeset
|
3427 |
|
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
dsimms
parents:
17684
diff
changeset
|
3428 return; |
| 0 | 3429 } |
| 3430 | |
| 3431 // Sleep forever; naked call to OS-specific sleep; use with CAUTION | |
| 3432 void os::infinite_sleep() { | |
| 3433 while (true) { // sleep forever ... | |
| 3434 ::sleep(100); // ... 100 seconds at a time | |
| 3435 } | |
| 3436 } | |
| 3437 | |
| 3438 // Used to convert frequent JVM_Yield() to nops | |
| 3439 bool os::dont_yield() { | |
| 3440 if (DontYieldALot) { | |
| 3441 static hrtime_t last_time = 0; | |
| 3442 hrtime_t diff = getTimeNanos() - last_time; | |
| 3443 | |
| 3444 if (diff < DontYieldALotInterval * 1000000) | |
| 3445 return true; | |
| 3446 | |
| 3447 last_time += diff; | |
| 3448 | |
| 3449 return false; | |
| 3450 } | |
| 3451 else { | |
| 3452 return false; | |
| 3453 } | |
| 3454 } | |
| 3455 | |
| 3456 // Caveat: Solaris os::yield() causes a thread-state transition whereas | |
| 3457 // the linux and win32 implementations do not. This should be checked. | |
| 3458 | |
| 3459 void os::yield() { | |
| 3460 // Yields to all threads with same or greater priority | |
| 3461 os::sleep(Thread::current(), 0, false); | |
| 3462 } | |
| 3463 | |
| 3464 // Note that yield semantics are defined by the scheduling class to which | |
| 3465 // the thread currently belongs. Typically, yield will _not yield to | |
| 3466 // other equal or higher priority threads that reside on the dispatch queues | |
| 3467 // of other CPUs. | |
| 3468 | |
| 3469 os::YieldResult os::NakedYield() { thr_yield(); return os::YIELD_UNKNOWN; } | |
| 3470 | |
| 3471 | |
| 3472 // On Solaris we found that yield_all doesn't always yield to all other threads. | |
| 3473 // There have been cases where there is a thread ready to execute but it doesn't | |
| 3474 // get an lwp as the VM thread continues to spin with sleeps of 1 millisecond. | |
| 3475 // The 1 millisecond wait doesn't seem long enough for the kernel to issue a | |
| 3476 // SIGWAITING signal which will cause a new lwp to be created. So we count the | |
| 3477 // number of times yield_all is called in the one loop and increase the sleep | |
| 3478 // time after 8 attempts. If this fails too we increase the concurrency level | |
| 3479 // so that the starving thread would get an lwp | |
| 3480 | |
| 3481 void os::yield_all(int attempts) { | |
| 3482 // Yields to all threads, including threads with lower priorities | |
| 3483 if (attempts == 0) { | |
| 3484 os::sleep(Thread::current(), 1, false); | |
| 3485 } else { | |
| 3486 int iterations = attempts % 30; | |
| 3487 if (iterations == 0 && !os::Solaris::T2_libthread()) { | |
| 3488 // thr_setconcurrency and _getconcurrency make sense only under T1. | |
| 3489 int noofLWPS = thr_getconcurrency(); | |
| 3490 if (noofLWPS < (Threads::number_of_threads() + 2)) { | |
| 3491 thr_setconcurrency(thr_getconcurrency() + 1); | |
| 3492 } | |
| 3493 } else if (iterations < 25) { | |
| 3494 os::sleep(Thread::current(), 1, false); | |
| 3495 } else { | |
| 3496 os::sleep(Thread::current(), 10, false); | |
| 3497 } | |
| 3498 } | |
| 3499 } | |
| 3500 | |
| 3501 // Called from the tight loops to possibly influence time-sharing heuristics | |
| 3502 void os::loop_breaker(int attempts) { | |
| 3503 os::yield_all(attempts); | |
| 3504 } | |
| 3505 | |
| 3506 | |
| 3507 // Interface for setting lwp priorities. If we are using T2 libthread, | |
| 3508 // which forces the use of BoundThreads or we manually set UseBoundThreads, | |
| 3509 // all of our threads will be assigned to real lwp's. Using the thr_setprio | |
| 3510 // function is meaningless in this mode so we must adjust the real lwp's priority | |
| 3511 // The routines below implement the getting and setting of lwp priorities. | |
| 3512 // | |
| 3513 // Note: There are three priority scales used on Solaris. Java priotities | |
| 3514 // which range from 1 to 10, libthread "thr_setprio" scale which range | |
| 3515 // from 0 to 127, and the current scheduling class of the process we | |
| 3516 // are running in. This is typically from -60 to +60. | |
| 3517 // The setting of the lwp priorities in done after a call to thr_setprio | |
| 3518 // so Java priorities are mapped to libthread priorities and we map from | |
| 3519 // the latter to lwp priorities. We don't keep priorities stored in | |
| 3520 // Java priorities since some of our worker threads want to set priorities | |
| 3521 // higher than all Java threads. | |
| 3522 // | |
| 3523 // For related information: | |
| 3524 // (1) man -s 2 priocntl | |
| 3525 // (2) man -s 4 priocntl | |
| 3526 // (3) man dispadmin | |
| 3527 // = librt.so | |
| 3528 // = libthread/common/rtsched.c - thrp_setlwpprio(). | |
| 3529 // = ps -cL <pid> ... to validate priority. | |
| 3530 // = sched_get_priority_min and _max | |
| 3531 // pthread_create | |
| 3532 // sched_setparam | |
| 3533 // pthread_setschedparam | |
| 3534 // | |
| 3535 // Assumptions: | |
| 3536 // + We assume that all threads in the process belong to the same | |
| 3537 // scheduling class. IE. an homogenous process. | |
| 3538 // + Must be root or in IA group to change change "interactive" attribute. | |
| 3539 // Priocntl() will fail silently. The only indication of failure is when | |
| 3540 // we read-back the value and notice that it hasn't changed. | |
| 3541 // + Interactive threads enter the runq at the head, non-interactive at the tail. | |
| 3542 // + For RT, change timeslice as well. Invariant: | |
| 3543 // constant "priority integral" | |
| 3544 // Konst == TimeSlice * (60-Priority) | |
| 3545 // Given a priority, compute appropriate timeslice. | |
| 3546 // + Higher numerical values have higher priority. | |
| 3547 | |
| 3548 // sched class attributes | |
| 3549 typedef struct { | |
| 3550 int schedPolicy; // classID | |
| 3551 int maxPrio; | |
| 3552 int minPrio; | |
| 3553 } SchedInfo; | |
| 3554 | |
| 3555 | |
|
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|
3556 static SchedInfo tsLimits, iaLimits, rtLimits, fxLimits; |
| 0 | 3557 |
| 3558 #ifdef ASSERT | |
| 3559 static int ReadBackValidate = 1; | |
| 3560 #endif | |
| 3561 static int myClass = 0; | |
| 3562 static int myMin = 0; | |
| 3563 static int myMax = 0; | |
| 3564 static int myCur = 0; | |
| 3565 static bool priocntl_enable = false; | |
| 3566 | |
|
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|
3567 static const int criticalPrio = 60; // FX/60 is critical thread class/priority on T4 |
|
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|
3568 static int java_MaxPriority_to_os_priority = 0; // Saved mapping |
| 0 | 3569 |
| 3570 | |
| 3571 // lwp_priocntl_init | |
| 3572 // | |
| 3573 // Try to determine the priority scale for our process. | |
| 3574 // | |
| 3575 // Return errno or 0 if OK. | |
| 3576 // | |
|
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|
3577 static int lwp_priocntl_init () { |
| 0 | 3578 int rslt; |
| 3579 pcinfo_t ClassInfo; | |
| 3580 pcparms_t ParmInfo; | |
| 3581 int i; | |
| 3582 | |
| 3583 if (!UseThreadPriorities) return 0; | |
| 3584 | |
| 3585 // We are using Bound threads, we need to determine our priority ranges | |
| 3586 if (os::Solaris::T2_libthread() || UseBoundThreads) { | |
| 3587 // If ThreadPriorityPolicy is 1, switch tables | |
| 3588 if (ThreadPriorityPolicy == 1) { | |
|
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|
3589 for (i = 0 ; i < CriticalPriority+1; i++) |
| 0 | 3590 os::java_to_os_priority[i] = prio_policy1[i]; |
| 3591 } | |
|
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|
3592 if (UseCriticalJavaThreadPriority) { |
|
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|
3593 // MaxPriority always maps to the FX scheduling class and criticalPrio. |
|
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|
3594 // See set_native_priority() and set_lwp_class_and_priority(). |
|
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|
3595 // Save original MaxPriority mapping in case attempt to |
|
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|
3596 // use critical priority fails. |
|
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|
3597 java_MaxPriority_to_os_priority = os::java_to_os_priority[MaxPriority]; |
|
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|
3598 // Set negative to distinguish from other priorities |
|
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|
3599 os::java_to_os_priority[MaxPriority] = -criticalPrio; |
|
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|
3600 } |
| 0 | 3601 } |
| 3602 // Not using Bound Threads, set to ThreadPolicy 1 | |
| 3603 else { | |
|
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|
3604 for ( i = 0 ; i < CriticalPriority+1; i++ ) { |
| 0 | 3605 os::java_to_os_priority[i] = prio_policy1[i]; |
| 3606 } | |
| 3607 return 0; | |
| 3608 } | |
| 3609 | |
| 3610 // Get IDs for a set of well-known scheduling classes. | |
| 3611 // TODO-FIXME: GETCLINFO returns the current # of classes in the | |
| 3612 // the system. We should have a loop that iterates over the | |
| 3613 // classID values, which are known to be "small" integers. | |
| 3614 | |
| 3615 strcpy(ClassInfo.pc_clname, "TS"); | |
| 3616 ClassInfo.pc_cid = -1; | |
|
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|
3617 rslt = priocntl(P_ALL, 0, PC_GETCID, (caddr_t)&ClassInfo); |
| 0 | 3618 if (rslt < 0) return errno; |
| 3619 assert(ClassInfo.pc_cid != -1, "cid for TS class is -1"); | |
| 3620 tsLimits.schedPolicy = ClassInfo.pc_cid; | |
| 3621 tsLimits.maxPrio = ((tsinfo_t*)ClassInfo.pc_clinfo)->ts_maxupri; | |
| 3622 tsLimits.minPrio = -tsLimits.maxPrio; | |
| 3623 | |
| 3624 strcpy(ClassInfo.pc_clname, "IA"); | |
| 3625 ClassInfo.pc_cid = -1; | |
|
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|
3626 rslt = priocntl(P_ALL, 0, PC_GETCID, (caddr_t)&ClassInfo); |
| 0 | 3627 if (rslt < 0) return errno; |
| 3628 assert(ClassInfo.pc_cid != -1, "cid for IA class is -1"); | |
| 3629 iaLimits.schedPolicy = ClassInfo.pc_cid; | |
| 3630 iaLimits.maxPrio = ((iainfo_t*)ClassInfo.pc_clinfo)->ia_maxupri; | |
| 3631 iaLimits.minPrio = -iaLimits.maxPrio; | |
| 3632 | |
| 3633 strcpy(ClassInfo.pc_clname, "RT"); | |
| 3634 ClassInfo.pc_cid = -1; | |
|
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|
3635 rslt = priocntl(P_ALL, 0, PC_GETCID, (caddr_t)&ClassInfo); |
| 0 | 3636 if (rslt < 0) return errno; |
| 3637 assert(ClassInfo.pc_cid != -1, "cid for RT class is -1"); | |
| 3638 rtLimits.schedPolicy = ClassInfo.pc_cid; | |
| 3639 rtLimits.maxPrio = ((rtinfo_t*)ClassInfo.pc_clinfo)->rt_maxpri; | |
| 3640 rtLimits.minPrio = 0; | |
| 3641 | |
|
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|
3642 strcpy(ClassInfo.pc_clname, "FX"); |
|
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|
3643 ClassInfo.pc_cid = -1; |
|
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|
3644 rslt = priocntl(P_ALL, 0, PC_GETCID, (caddr_t)&ClassInfo); |
|
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|
3645 if (rslt < 0) return errno; |
|
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|
3646 assert(ClassInfo.pc_cid != -1, "cid for FX class is -1"); |
|
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|
3647 fxLimits.schedPolicy = ClassInfo.pc_cid; |
|
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|
3648 fxLimits.maxPrio = ((fxinfo_t*)ClassInfo.pc_clinfo)->fx_maxupri; |
|
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|
3649 fxLimits.minPrio = 0; |
| 0 | 3650 |
| 3651 // Query our "current" scheduling class. | |
|
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|
3652 // This will normally be IA, TS or, rarely, FX or RT. |
|
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|
3653 memset(&ParmInfo, 0, sizeof(ParmInfo)); |
| 0 | 3654 ParmInfo.pc_cid = PC_CLNULL; |
|
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|
3655 rslt = priocntl(P_PID, P_MYID, PC_GETPARMS, (caddr_t)&ParmInfo); |
|
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|
3656 if (rslt < 0) return errno; |
| 0 | 3657 myClass = ParmInfo.pc_cid; |
| 3658 | |
| 3659 // We now know our scheduling classId, get specific information | |
|
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|
3660 // about the class. |
| 0 | 3661 ClassInfo.pc_cid = myClass; |
| 3662 ClassInfo.pc_clname[0] = 0; | |
|
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|
3663 rslt = priocntl((idtype)0, 0, PC_GETCLINFO, (caddr_t)&ClassInfo); |
|
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|
3664 if (rslt < 0) return errno; |
|
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|
3665 |
|
de268c8a8075
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|
3666 if (ThreadPriorityVerbose) { |
|
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|
3667 tty->print_cr("lwp_priocntl_init: Class=%d(%s)...", myClass, ClassInfo.pc_clname); |
|
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|
3668 } |
| 0 | 3669 |
| 3670 memset(&ParmInfo, 0, sizeof(pcparms_t)); | |
| 3671 ParmInfo.pc_cid = PC_CLNULL; | |
|
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|
3672 rslt = priocntl(P_PID, P_MYID, PC_GETPARMS, (caddr_t)&ParmInfo); |
| 0 | 3673 if (rslt < 0) return errno; |
| 3674 | |
| 3675 if (ParmInfo.pc_cid == rtLimits.schedPolicy) { | |
| 3676 myMin = rtLimits.minPrio; | |
| 3677 myMax = rtLimits.maxPrio; | |
| 3678 } else if (ParmInfo.pc_cid == iaLimits.schedPolicy) { | |
| 3679 iaparms_t *iaInfo = (iaparms_t*)ParmInfo.pc_clparms; | |
| 3680 myMin = iaLimits.minPrio; | |
| 3681 myMax = iaLimits.maxPrio; | |
| 3682 myMax = MIN2(myMax, (int)iaInfo->ia_uprilim); // clamp - restrict | |
| 3683 } else if (ParmInfo.pc_cid == tsLimits.schedPolicy) { | |
| 3684 tsparms_t *tsInfo = (tsparms_t*)ParmInfo.pc_clparms; | |
| 3685 myMin = tsLimits.minPrio; | |
| 3686 myMax = tsLimits.maxPrio; | |
| 3687 myMax = MIN2(myMax, (int)tsInfo->ts_uprilim); // clamp - restrict | |
|
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|
3688 } else if (ParmInfo.pc_cid == fxLimits.schedPolicy) { |
|
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|
3689 fxparms_t *fxInfo = (fxparms_t*)ParmInfo.pc_clparms; |
|
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|
3690 myMin = fxLimits.minPrio; |
|
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|
3691 myMax = fxLimits.maxPrio; |
|
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|
3692 myMax = MIN2(myMax, (int)fxInfo->fx_uprilim); // clamp - restrict |
| 0 | 3693 } else { |
| 3694 // No clue - punt | |
| 3695 if (ThreadPriorityVerbose) | |
| 3696 tty->print_cr ("Unknown scheduling class: %s ... \n", ClassInfo.pc_clname); | |
| 3697 return EINVAL; // no clue, punt | |
| 3698 } | |
| 3699 | |
|
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|
3700 if (ThreadPriorityVerbose) { |
|
de268c8a8075
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|
3701 tty->print_cr ("Thread priority Range: [%d..%d]\n", myMin, myMax); |
|
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|
3702 } |
| 0 | 3703 |
| 3704 priocntl_enable = true; // Enable changing priorities | |
| 3705 return 0; | |
| 3706 } | |
| 3707 | |
| 3708 #define IAPRI(x) ((iaparms_t *)((x).pc_clparms)) | |
| 3709 #define RTPRI(x) ((rtparms_t *)((x).pc_clparms)) | |
| 3710 #define TSPRI(x) ((tsparms_t *)((x).pc_clparms)) | |
|
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|
3711 #define FXPRI(x) ((fxparms_t *)((x).pc_clparms)) |
| 0 | 3712 |
| 3713 | |
| 3714 // scale_to_lwp_priority | |
| 3715 // | |
| 3716 // Convert from the libthread "thr_setprio" scale to our current | |
| 3717 // lwp scheduling class scale. | |
| 3718 // | |
| 3719 static | |
| 3720 int scale_to_lwp_priority (int rMin, int rMax, int x) | |
| 3721 { | |
| 3722 int v; | |
| 3723 | |
| 3724 if (x == 127) return rMax; // avoid round-down | |
| 3725 v = (((x*(rMax-rMin)))/128)+rMin; | |
| 3726 return v; | |
| 3727 } | |
| 3728 | |
| 3729 | |
|
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|
3730 // set_lwp_class_and_priority |
| 0 | 3731 // |
|
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|
3732 // Set the class and priority of the lwp. This call should only |
|
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|
3733 // be made when using bound threads (T2 threads are bound by default). |
| 0 | 3734 // |
|
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|
3735 int set_lwp_class_and_priority(int ThreadID, int lwpid, |
|
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|
3736 int newPrio, int new_class, bool scale) { |
| 0 | 3737 int rslt; |
| 3738 int Actual, Expected, prv; | |
| 3739 pcparms_t ParmInfo; // for GET-SET | |
| 3740 #ifdef ASSERT | |
| 3741 pcparms_t ReadBack; // for readback | |
| 3742 #endif | |
| 3743 | |
| 3744 // Set priority via PC_GETPARMS, update, PC_SETPARMS | |
| 3745 // Query current values. | |
| 3746 // TODO: accelerate this by eliminating the PC_GETPARMS call. | |
| 3747 // Cache "pcparms_t" in global ParmCache. | |
| 3748 // TODO: elide set-to-same-value | |
| 3749 | |
| 3750 // If something went wrong on init, don't change priorities. | |
| 3751 if ( !priocntl_enable ) { | |
| 3752 if (ThreadPriorityVerbose) | |
| 3753 tty->print_cr("Trying to set priority but init failed, ignoring"); | |
| 3754 return EINVAL; | |
| 3755 } | |
| 3756 | |
| 3757 // If lwp hasn't started yet, just return | |
| 3758 // the _start routine will call us again. | |
| 3759 if ( lwpid <= 0 ) { | |
| 3760 if (ThreadPriorityVerbose) { | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3761 tty->print_cr ("deferring the set_lwp_class_and_priority of thread " |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3762 INTPTR_FORMAT " to %d, lwpid not set", |
| 0 | 3763 ThreadID, newPrio); |
| 3764 } | |
| 3765 return 0; | |
| 3766 } | |
| 3767 | |
| 3768 if (ThreadPriorityVerbose) { | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3769 tty->print_cr ("set_lwp_class_and_priority(" |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3770 INTPTR_FORMAT "@" INTPTR_FORMAT " %d) ", |
| 0 | 3771 ThreadID, lwpid, newPrio); |
| 3772 } | |
| 3773 | |
| 3774 memset(&ParmInfo, 0, sizeof(pcparms_t)); | |
| 3775 ParmInfo.pc_cid = PC_CLNULL; | |
|
11111
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3776 rslt = priocntl(P_LWPID, lwpid, PC_GETPARMS, (caddr_t)&ParmInfo); |
| 0 | 3777 if (rslt < 0) return errno; |
| 3778 | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3779 int cur_class = ParmInfo.pc_cid; |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3780 ParmInfo.pc_cid = (id_t)new_class; |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3781 |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3782 if (new_class == rtLimits.schedPolicy) { |
| 0 | 3783 rtparms_t *rtInfo = (rtparms_t*)ParmInfo.pc_clparms; |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3784 rtInfo->rt_pri = scale ? scale_to_lwp_priority(rtLimits.minPrio, |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3785 rtLimits.maxPrio, newPrio) |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3786 : newPrio; |
| 0 | 3787 rtInfo->rt_tqsecs = RT_NOCHANGE; |
| 3788 rtInfo->rt_tqnsecs = RT_NOCHANGE; | |
| 3789 if (ThreadPriorityVerbose) { | |
| 3790 tty->print_cr("RT: %d->%d\n", newPrio, rtInfo->rt_pri); | |
| 3791 } | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3792 } else if (new_class == iaLimits.schedPolicy) { |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3793 iaparms_t* iaInfo = (iaparms_t*)ParmInfo.pc_clparms; |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3794 int maxClamped = MIN2(iaLimits.maxPrio, |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3795 cur_class == new_class |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3796 ? (int)iaInfo->ia_uprilim : iaLimits.maxPrio); |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3797 iaInfo->ia_upri = scale ? scale_to_lwp_priority(iaLimits.minPrio, |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3798 maxClamped, newPrio) |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3799 : newPrio; |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3800 iaInfo->ia_uprilim = cur_class == new_class |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3801 ? IA_NOCHANGE : (pri_t)iaLimits.maxPrio; |
| 0 | 3802 iaInfo->ia_mode = IA_NOCHANGE; |
| 3803 if (ThreadPriorityVerbose) { | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3804 tty->print_cr("IA: [%d...%d] %d->%d\n", |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3805 iaLimits.minPrio, maxClamped, newPrio, iaInfo->ia_upri); |
| 0 | 3806 } |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3807 } else if (new_class == tsLimits.schedPolicy) { |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3808 tsparms_t* tsInfo = (tsparms_t*)ParmInfo.pc_clparms; |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3809 int maxClamped = MIN2(tsLimits.maxPrio, |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3810 cur_class == new_class |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3811 ? (int)tsInfo->ts_uprilim : tsLimits.maxPrio); |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3812 tsInfo->ts_upri = scale ? scale_to_lwp_priority(tsLimits.minPrio, |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3813 maxClamped, newPrio) |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3814 : newPrio; |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3815 tsInfo->ts_uprilim = cur_class == new_class |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3816 ? TS_NOCHANGE : (pri_t)tsLimits.maxPrio; |
| 0 | 3817 if (ThreadPriorityVerbose) { |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3818 tty->print_cr("TS: [%d...%d] %d->%d\n", |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3819 tsLimits.minPrio, maxClamped, newPrio, tsInfo->ts_upri); |
| 0 | 3820 } |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3821 } else if (new_class == fxLimits.schedPolicy) { |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3822 fxparms_t* fxInfo = (fxparms_t*)ParmInfo.pc_clparms; |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3823 int maxClamped = MIN2(fxLimits.maxPrio, |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3824 cur_class == new_class |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3825 ? (int)fxInfo->fx_uprilim : fxLimits.maxPrio); |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3826 fxInfo->fx_upri = scale ? scale_to_lwp_priority(fxLimits.minPrio, |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3827 maxClamped, newPrio) |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3828 : newPrio; |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3829 fxInfo->fx_uprilim = cur_class == new_class |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3830 ? FX_NOCHANGE : (pri_t)fxLimits.maxPrio; |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3831 fxInfo->fx_tqsecs = FX_NOCHANGE; |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3832 fxInfo->fx_tqnsecs = FX_NOCHANGE; |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3833 if (ThreadPriorityVerbose) { |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3834 tty->print_cr("FX: [%d...%d] %d->%d\n", |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3835 fxLimits.minPrio, maxClamped, newPrio, fxInfo->fx_upri); |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3836 } |
| 0 | 3837 } else { |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3838 if (ThreadPriorityVerbose) { |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3839 tty->print_cr("Unknown new scheduling class %d\n", new_class); |
| 0 | 3840 } |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3841 return EINVAL; // no clue, punt |
| 0 | 3842 } |
| 3843 | |
|
11111
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3844 rslt = priocntl(P_LWPID, lwpid, PC_SETPARMS, (caddr_t)&ParmInfo); |
| 0 | 3845 if (ThreadPriorityVerbose && rslt) { |
| 3846 tty->print_cr ("PC_SETPARMS ->%d %d\n", rslt, errno); | |
| 3847 } | |
| 3848 if (rslt < 0) return errno; | |
| 3849 | |
| 3850 #ifdef ASSERT | |
| 3851 // Sanity check: read back what we just attempted to set. | |
| 3852 // In theory it could have changed in the interim ... | |
| 3853 // | |
| 3854 // The priocntl system call is tricky. | |
| 3855 // Sometimes it'll validate the priority value argument and | |
| 3856 // return EINVAL if unhappy. At other times it fails silently. | |
| 3857 // Readbacks are prudent. | |
| 3858 | |
| 3859 if (!ReadBackValidate) return 0; | |
| 3860 | |
| 3861 memset(&ReadBack, 0, sizeof(pcparms_t)); | |
| 3862 ReadBack.pc_cid = PC_CLNULL; | |
|
11111
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3863 rslt = priocntl(P_LWPID, lwpid, PC_GETPARMS, (caddr_t)&ReadBack); |
| 0 | 3864 assert(rslt >= 0, "priocntl failed"); |
| 3865 Actual = Expected = 0xBAD; | |
| 3866 assert(ParmInfo.pc_cid == ReadBack.pc_cid, "cid's don't match"); | |
| 3867 if (ParmInfo.pc_cid == rtLimits.schedPolicy) { | |
| 3868 Actual = RTPRI(ReadBack)->rt_pri; | |
| 3869 Expected = RTPRI(ParmInfo)->rt_pri; | |
| 3870 } else if (ParmInfo.pc_cid == iaLimits.schedPolicy) { | |
| 3871 Actual = IAPRI(ReadBack)->ia_upri; | |
| 3872 Expected = IAPRI(ParmInfo)->ia_upri; | |
| 3873 } else if (ParmInfo.pc_cid == tsLimits.schedPolicy) { | |
| 3874 Actual = TSPRI(ReadBack)->ts_upri; | |
| 3875 Expected = TSPRI(ParmInfo)->ts_upri; | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3876 } else if (ParmInfo.pc_cid == fxLimits.schedPolicy) { |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3877 Actual = FXPRI(ReadBack)->fx_upri; |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3878 Expected = FXPRI(ParmInfo)->fx_upri; |
| 0 | 3879 } else { |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3880 if (ThreadPriorityVerbose) { |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3881 tty->print_cr("set_lwp_class_and_priority: unexpected class in readback: %d\n", |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3882 ParmInfo.pc_cid); |
| 0 | 3883 } |
| 3884 } | |
| 3885 | |
| 3886 if (Actual != Expected) { | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3887 if (ThreadPriorityVerbose) { |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3888 tty->print_cr ("set_lwp_class_and_priority(%d %d) Class=%d: actual=%d vs expected=%d\n", |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3889 lwpid, newPrio, ReadBack.pc_cid, Actual, Expected); |
| 0 | 3890 } |
| 3891 } | |
| 3892 #endif | |
| 3893 | |
| 3894 return 0; | |
| 3895 } | |
| 3896 | |
| 3897 // Solaris only gives access to 128 real priorities at a time, | |
| 3898 // so we expand Java's ten to fill this range. This would be better | |
| 3899 // if we dynamically adjusted relative priorities. | |
| 3900 // | |
| 3901 // The ThreadPriorityPolicy option allows us to select 2 different | |
| 3902 // priority scales. | |
| 3903 // | |
| 3904 // ThreadPriorityPolicy=0 | |
| 3905 // Since the Solaris' default priority is MaximumPriority, we do not | |
| 3906 // set a priority lower than Max unless a priority lower than | |
| 3907 // NormPriority is requested. | |
| 3908 // | |
| 3909 // ThreadPriorityPolicy=1 | |
| 3910 // This mode causes the priority table to get filled with | |
| 3911 // linear values. NormPriority get's mapped to 50% of the | |
| 3912 // Maximum priority an so on. This will cause VM threads | |
| 3913 // to get unfair treatment against other Solaris processes | |
| 3914 // which do not explicitly alter their thread priorities. | |
| 3915 // | |
| 3916 | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3917 int os::java_to_os_priority[CriticalPriority + 1] = { |
| 0 | 3918 -99999, // 0 Entry should never be used |
| 3919 | |
| 3920 0, // 1 MinPriority | |
| 3921 32, // 2 | |
| 3922 64, // 3 | |
| 3923 | |
| 3924 96, // 4 | |
| 3925 127, // 5 NormPriority | |
| 3926 127, // 6 | |
| 3927 | |
| 3928 127, // 7 | |
| 3929 127, // 8 | |
| 3930 127, // 9 NearMaxPriority | |
| 3931 | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3932 127, // 10 MaxPriority |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3933 |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3934 -criticalPrio // 11 CriticalPriority |
| 0 | 3935 }; |
| 3936 | |
| 3937 OSReturn os::set_native_priority(Thread* thread, int newpri) { | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3938 OSThread* osthread = thread->osthread(); |
|
de268c8a8075
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3939 |
|
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3940 // Save requested priority in case the thread hasn't been started |
|
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3941 osthread->set_native_priority(newpri); |
|
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3942 |
|
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|
3943 // Check for critical priority request |
|
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3944 bool fxcritical = false; |
|
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3945 if (newpri == -criticalPrio) { |
|
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3946 fxcritical = true; |
|
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3947 newpri = criticalPrio; |
|
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3948 } |
|
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3949 |
| 0 | 3950 assert(newpri >= MinimumPriority && newpri <= MaximumPriority, "bad priority mapping"); |
|
4854
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3951 if (!UseThreadPriorities) return OS_OK; |
|
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3952 |
|
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|
3953 int status = 0; |
|
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3954 |
|
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|
3955 if (!fxcritical) { |
|
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3956 // Use thr_setprio only if we have a priority that thr_setprio understands |
|
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3957 status = thr_setprio(thread->osthread()->thread_id(), newpri); |
|
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3958 } |
|
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3959 |
|
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3960 if (os::Solaris::T2_libthread() || |
|
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3961 (UseBoundThreads && osthread->is_vm_created())) { |
|
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3962 int lwp_status = |
|
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3963 set_lwp_class_and_priority(osthread->thread_id(), |
|
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3964 osthread->lwp_id(), |
|
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|
3965 newpri, |
|
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|
3966 fxcritical ? fxLimits.schedPolicy : myClass, |
|
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3967 !fxcritical); |
|
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|
3968 if (lwp_status != 0 && fxcritical) { |
|
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3969 // Try again, this time without changing the scheduling class |
|
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|
3970 newpri = java_MaxPriority_to_os_priority; |
|
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3971 lwp_status = set_lwp_class_and_priority(osthread->thread_id(), |
|
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3972 osthread->lwp_id(), |
|
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|
3973 newpri, myClass, false); |
|
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3974 } |
|
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|
3975 status |= lwp_status; |
|
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|
3976 } |
| 0 | 3977 return (status == 0) ? OS_OK : OS_ERR; |
| 3978 } | |
| 3979 | |
| 3980 | |
| 3981 OSReturn os::get_native_priority(const Thread* const thread, int *priority_ptr) { | |
| 3982 int p; | |
| 3983 if ( !UseThreadPriorities ) { | |
| 3984 *priority_ptr = NormalPriority; | |
| 3985 return OS_OK; | |
| 3986 } | |
| 3987 int status = thr_getprio(thread->osthread()->thread_id(), &p); | |
| 3988 if (status != 0) { | |
| 3989 return OS_ERR; | |
| 3990 } | |
| 3991 *priority_ptr = p; | |
| 3992 return OS_OK; | |
| 3993 } | |
| 3994 | |
| 3995 | |
| 3996 // Hint to the underlying OS that a task switch would not be good. | |
| 3997 // Void return because it's a hint and can fail. | |
| 3998 void os::hint_no_preempt() { | |
| 3999 schedctl_start(schedctl_init()); | |
| 4000 } | |
| 4001 | |
| 10405 | 4002 static void resume_clear_context(OSThread *osthread) { |
| 4003 osthread->set_ucontext(NULL); | |
| 4004 } | |
| 4005 | |
| 4006 static void suspend_save_context(OSThread *osthread, ucontext_t* context) { | |
| 4007 osthread->set_ucontext(context); | |
| 4008 } | |
| 4009 | |
| 4010 static Semaphore sr_semaphore; | |
| 4011 | |
| 4012 void os::Solaris::SR_handler(Thread* thread, ucontext_t* uc) { | |
| 4013 // Save and restore errno to avoid confusing native code with EINTR | |
| 4014 // after sigsuspend. | |
| 4015 int old_errno = errno; | |
| 4016 | |
| 4017 OSThread* osthread = thread->osthread(); | |
| 4018 assert(thread->is_VM_thread() || thread->is_Java_thread(), "Must be VMThread or JavaThread"); | |
| 4019 | |
| 4020 os::SuspendResume::State current = osthread->sr.state(); | |
| 4021 if (current == os::SuspendResume::SR_SUSPEND_REQUEST) { | |
| 4022 suspend_save_context(osthread, uc); | |
| 4023 | |
| 4024 // attempt to switch the state, we assume we had a SUSPEND_REQUEST | |
| 4025 os::SuspendResume::State state = osthread->sr.suspended(); | |
| 4026 if (state == os::SuspendResume::SR_SUSPENDED) { | |
| 4027 sigset_t suspend_set; // signals for sigsuspend() | |
| 4028 | |
| 4029 // get current set of blocked signals and unblock resume signal | |
| 4030 thr_sigsetmask(SIG_BLOCK, NULL, &suspend_set); | |
| 4031 sigdelset(&suspend_set, os::Solaris::SIGasync()); | |
| 4032 | |
| 4033 sr_semaphore.signal(); | |
| 4034 // wait here until we are resumed | |
| 4035 while (1) { | |
| 4036 sigsuspend(&suspend_set); | |
| 4037 | |
| 4038 os::SuspendResume::State result = osthread->sr.running(); | |
| 4039 if (result == os::SuspendResume::SR_RUNNING) { | |
| 4040 sr_semaphore.signal(); | |
| 4041 break; | |
| 4042 } | |
| 4043 } | |
| 4044 | |
| 4045 } else if (state == os::SuspendResume::SR_RUNNING) { | |
| 4046 // request was cancelled, continue | |
| 4047 } else { | |
| 4048 ShouldNotReachHere(); | |
| 4049 } | |
| 4050 | |
| 4051 resume_clear_context(osthread); | |
| 4052 } else if (current == os::SuspendResume::SR_RUNNING) { | |
| 4053 // request was cancelled, continue | |
| 4054 } else if (current == os::SuspendResume::SR_WAKEUP_REQUEST) { | |
| 4055 // ignore | |
| 4056 } else { | |
| 4057 // ignore | |
| 4058 } | |
| 4059 | |
| 4060 errno = old_errno; | |
| 4061 } | |
| 4062 | |
| 4063 | |
| 0 | 4064 void os::interrupt(Thread* thread) { |
| 4065 assert(Thread::current() == thread || Threads_lock->owned_by_self(), "possibility of dangling Thread pointer"); | |
| 4066 | |
| 4067 OSThread* osthread = thread->osthread(); | |
| 4068 | |
| 4069 int isInterrupted = osthread->interrupted(); | |
| 4070 if (!isInterrupted) { | |
| 4071 osthread->set_interrupted(true); | |
| 4072 OrderAccess::fence(); | |
| 4073 // os::sleep() is implemented with either poll (NULL,0,timeout) or | |
| 4074 // by parking on _SleepEvent. If the former, thr_kill will unwedge | |
| 4075 // the sleeper by SIGINTR, otherwise the unpark() will wake the sleeper. | |
| 4076 ParkEvent * const slp = thread->_SleepEvent ; | |
| 4077 if (slp != NULL) slp->unpark() ; | |
| 4078 } | |
| 4079 | |
| 4080 // For JSR166: unpark after setting status but before thr_kill -dl | |
| 4081 if (thread->is_Java_thread()) { | |
| 4082 ((JavaThread*)thread)->parker()->unpark(); | |
| 4083 } | |
| 4084 | |
| 4085 // Handle interruptible wait() ... | |
| 4086 ParkEvent * const ev = thread->_ParkEvent ; | |
| 4087 if (ev != NULL) ev->unpark() ; | |
| 4088 | |
| 4089 // When events are used everywhere for os::sleep, then this thr_kill | |
| 4090 // will only be needed if UseVMInterruptibleIO is true. | |
| 4091 | |
| 4092 if (!isInterrupted) { | |
| 4093 int status = thr_kill(osthread->thread_id(), os::Solaris::SIGinterrupt()); | |
| 4094 assert_status(status == 0, status, "thr_kill"); | |
| 4095 | |
| 4096 // Bump thread interruption counter | |
| 4097 RuntimeService::record_thread_interrupt_signaled_count(); | |
| 4098 } | |
| 4099 } | |
| 4100 | |
| 4101 | |
| 4102 bool os::is_interrupted(Thread* thread, bool clear_interrupted) { | |
| 4103 assert(Thread::current() == thread || Threads_lock->owned_by_self(), "possibility of dangling Thread pointer"); | |
| 4104 | |
| 4105 OSThread* osthread = thread->osthread(); | |
| 4106 | |
| 4107 bool res = osthread->interrupted(); | |
| 4108 | |
| 4109 // NOTE that since there is no "lock" around these two operations, | |
| 4110 // there is the possibility that the interrupted flag will be | |
| 4111 // "false" but that the interrupt event will be set. This is | |
| 4112 // intentional. The effect of this is that Object.wait() will appear | |
| 4113 // to have a spurious wakeup, which is not harmful, and the | |
| 4114 // possibility is so rare that it is not worth the added complexity | |
| 4115 // to add yet another lock. It has also been recommended not to put | |
| 4116 // the interrupted flag into the os::Solaris::Event structure, | |
| 4117 // because it hides the issue. | |
| 4118 if (res && clear_interrupted) { | |
| 4119 osthread->set_interrupted(false); | |
| 4120 } | |
| 4121 return res; | |
| 4122 } | |
| 4123 | |
| 4124 | |
| 4125 void os::print_statistics() { | |
| 4126 } | |
| 4127 | |
| 4128 int os::message_box(const char* title, const char* message) { | |
| 4129 int i; | |
| 4130 fdStream err(defaultStream::error_fd()); | |
| 4131 for (i = 0; i < 78; i++) err.print_raw("="); | |
| 4132 err.cr(); | |
| 4133 err.print_raw_cr(title); | |
| 4134 for (i = 0; i < 78; i++) err.print_raw("-"); | |
| 4135 err.cr(); | |
| 4136 err.print_raw_cr(message); | |
| 4137 for (i = 0; i < 78; i++) err.print_raw("="); | |
| 4138 err.cr(); | |
| 4139 | |
| 4140 char buf[16]; | |
| 4141 // Prevent process from exiting upon "read error" without consuming all CPU | |
| 4142 while (::read(0, buf, sizeof(buf)) <= 0) { ::sleep(100); } | |
| 4143 | |
| 4144 return buf[0] == 'y' || buf[0] == 'Y'; | |
| 4145 } | |
| 4146 | |
| 10405 | 4147 static int sr_notify(OSThread* osthread) { |
| 4148 int status = thr_kill(osthread->thread_id(), os::Solaris::SIGasync()); | |
| 4149 assert_status(status == 0, status, "thr_kill"); | |
| 4150 return status; | |
| 4151 } | |
| 4152 | |
| 4153 // "Randomly" selected value for how long we want to spin | |
| 4154 // before bailing out on suspending a thread, also how often | |
| 4155 // we send a signal to a thread we want to resume | |
| 4156 static const int RANDOMLY_LARGE_INTEGER = 1000000; | |
| 4157 static const int RANDOMLY_LARGE_INTEGER2 = 100; | |
| 4158 | |
| 4159 static bool do_suspend(OSThread* osthread) { | |
| 4160 assert(osthread->sr.is_running(), "thread should be running"); | |
| 4161 assert(!sr_semaphore.trywait(), "semaphore has invalid state"); | |
| 4162 | |
| 4163 // mark as suspended and send signal | |
| 4164 if (osthread->sr.request_suspend() != os::SuspendResume::SR_SUSPEND_REQUEST) { | |
| 4165 // failed to switch, state wasn't running? | |
| 4166 ShouldNotReachHere(); | |
| 4167 return false; | |
| 4168 } | |
| 4169 | |
| 4170 if (sr_notify(osthread) != 0) { | |
| 4171 ShouldNotReachHere(); | |
| 4172 } | |
| 4173 | |
| 4174 // managed to send the signal and switch to SUSPEND_REQUEST, now wait for SUSPENDED | |
| 4175 while (true) { | |
| 4176 if (sr_semaphore.timedwait(0, 2000 * NANOSECS_PER_MILLISEC)) { | |
| 4177 break; | |
| 4178 } else { | |
| 4179 // timeout | |
| 4180 os::SuspendResume::State cancelled = osthread->sr.cancel_suspend(); | |
| 4181 if (cancelled == os::SuspendResume::SR_RUNNING) { | |
| 4182 return false; | |
| 4183 } else if (cancelled == os::SuspendResume::SR_SUSPENDED) { | |
| 4184 // make sure that we consume the signal on the semaphore as well | |
| 4185 sr_semaphore.wait(); | |
| 4186 break; | |
| 4187 } else { | |
| 4188 ShouldNotReachHere(); | |
| 4189 return false; | |
| 4190 } | |
| 4191 } | |
| 4192 } | |
| 4193 | |
| 4194 guarantee(osthread->sr.is_suspended(), "Must be suspended"); | |
| 4195 return true; | |
| 4196 } | |
| 4197 | |
| 4198 static void do_resume(OSThread* osthread) { | |
| 4199 assert(osthread->sr.is_suspended(), "thread should be suspended"); | |
| 4200 assert(!sr_semaphore.trywait(), "invalid semaphore state"); | |
| 4201 | |
| 4202 if (osthread->sr.request_wakeup() != os::SuspendResume::SR_WAKEUP_REQUEST) { | |
| 4203 // failed to switch to WAKEUP_REQUEST | |
| 4204 ShouldNotReachHere(); | |
| 4205 return; | |
| 4206 } | |
| 4207 | |
| 4208 while (true) { | |
| 4209 if (sr_notify(osthread) == 0) { | |
| 4210 if (sr_semaphore.timedwait(0, 2 * NANOSECS_PER_MILLISEC)) { | |
| 4211 if (osthread->sr.is_running()) { | |
| 4212 return; | |
| 4213 } | |
| 4214 } | |
| 4215 } else { | |
| 4216 ShouldNotReachHere(); | |
| 4217 } | |
| 4218 } | |
| 4219 | |
| 4220 guarantee(osthread->sr.is_running(), "Must be running!"); | |
| 4221 } | |
| 4222 | |
| 4223 void os::SuspendedThreadTask::internal_do_task() { | |
| 4224 if (do_suspend(_thread->osthread())) { | |
| 4225 SuspendedThreadTaskContext context(_thread, _thread->osthread()->ucontext()); | |
| 4226 do_task(context); | |
| 4227 do_resume(_thread->osthread()); | |
| 4228 } | |
| 4229 } | |
| 4230 | |
| 4231 class PcFetcher : public os::SuspendedThreadTask { | |
| 4232 public: | |
| 4233 PcFetcher(Thread* thread) : os::SuspendedThreadTask(thread) {} | |
| 4234 ExtendedPC result(); | |
| 4235 protected: | |
| 4236 void do_task(const os::SuspendedThreadTaskContext& context); | |
| 4237 private: | |
| 4238 ExtendedPC _epc; | |
| 4239 }; | |
| 4240 | |
| 4241 ExtendedPC PcFetcher::result() { | |
| 4242 guarantee(is_done(), "task is not done yet."); | |
| 4243 return _epc; | |
| 4244 } | |
| 4245 | |
| 4246 void PcFetcher::do_task(const os::SuspendedThreadTaskContext& context) { | |
| 4247 Thread* thread = context.thread(); | |
| 4248 OSThread* osthread = thread->osthread(); | |
| 4249 if (osthread->ucontext() != NULL) { | |
| 4250 _epc = os::Solaris::ucontext_get_pc((ucontext_t *) context.ucontext()); | |
| 4251 } else { | |
| 4252 // NULL context is unexpected, double-check this is the VMThread | |
| 4253 guarantee(thread->is_VM_thread(), "can only be called for VMThread"); | |
| 4254 } | |
| 4255 } | |
| 4256 | |
| 0 | 4257 // A lightweight implementation that does not suspend the target thread and |
| 4258 // thus returns only a hint. Used for profiling only! | |
| 4259 ExtendedPC os::get_thread_pc(Thread* thread) { | |
| 4260 // Make sure that it is called by the watcher and the Threads lock is owned. | |
| 4261 assert(Thread::current()->is_Watcher_thread(), "Must be watcher and own Threads_lock"); | |
| 4262 // For now, is only used to profile the VM Thread | |
| 4263 assert(thread->is_VM_thread(), "Can only be called for VMThread"); | |
| 10405 | 4264 PcFetcher fetcher(thread); |
| 4265 fetcher.run(); | |
| 4266 return fetcher.result(); | |
| 0 | 4267 } |
| 4268 | |
| 4269 | |
| 4270 // This does not do anything on Solaris. This is basically a hook for being | |
| 4271 // able to use structured exception handling (thread-local exception filters) on, e.g., Win32. | |
| 4272 void os::os_exception_wrapper(java_call_t f, JavaValue* value, methodHandle* method, JavaCallArguments* args, Thread* thread) { | |
| 4273 f(value, method, args, thread); | |
| 4274 } | |
| 4275 | |
| 4276 // This routine may be used by user applications as a "hook" to catch signals. | |
| 4277 // The user-defined signal handler must pass unrecognized signals to this | |
| 4278 // routine, and if it returns true (non-zero), then the signal handler must | |
| 4279 // return immediately. If the flag "abort_if_unrecognized" is true, then this | |
| 4280 // routine will never retun false (zero), but instead will execute a VM panic | |
| 4281 // routine kill the process. | |
| 4282 // | |
| 4283 // If this routine returns false, it is OK to call it again. This allows | |
| 4284 // the user-defined signal handler to perform checks either before or after | |
| 4285 // the VM performs its own checks. Naturally, the user code would be making | |
| 4286 // a serious error if it tried to handle an exception (such as a null check | |
| 4287 // or breakpoint) that the VM was generating for its own correct operation. | |
| 4288 // | |
| 4289 // This routine may recognize any of the following kinds of signals: | |
| 4290 // SIGBUS, SIGSEGV, SIGILL, SIGFPE, BREAK_SIGNAL, SIGPIPE, SIGXFSZ, | |
| 4291 // os::Solaris::SIGasync | |
| 4292 // It should be consulted by handlers for any of those signals. | |
| 4293 // It explicitly does not recognize os::Solaris::SIGinterrupt | |
| 4294 // | |
| 4295 // The caller of this routine must pass in the three arguments supplied | |
| 4296 // to the function referred to in the "sa_sigaction" (not the "sa_handler") | |
| 4297 // field of the structure passed to sigaction(). This routine assumes that | |
| 4298 // the sa_flags field passed to sigaction() includes SA_SIGINFO and SA_RESTART. | |
| 4299 // | |
| 4300 // Note that the VM will print warnings if it detects conflicting signal | |
| 4301 // handlers, unless invoked with the option "-XX:+AllowUserSignalHandlers". | |
| 4302 // | |
| 2191 | 4303 extern "C" JNIEXPORT int |
| 4304 JVM_handle_solaris_signal(int signo, siginfo_t* siginfo, void* ucontext, | |
| 4305 int abort_if_unrecognized); | |
| 0 | 4306 |
| 4307 | |
| 4308 void signalHandler(int sig, siginfo_t* info, void* ucVoid) { | |
| 8067 | 4309 int orig_errno = errno; // Preserve errno value over signal handler. |
| 0 | 4310 JVM_handle_solaris_signal(sig, info, ucVoid, true); |
| 8067 | 4311 errno = orig_errno; |
| 0 | 4312 } |
| 4313 | |
| 4314 /* Do not delete - if guarantee is ever removed, a signal handler (even empty) | |
| 4315 is needed to provoke threads blocked on IO to return an EINTR | |
| 4316 Note: this explicitly does NOT call JVM_handle_solaris_signal and | |
| 4317 does NOT participate in signal chaining due to requirement for | |
| 4318 NOT setting SA_RESTART to make EINTR work. */ | |
| 4319 extern "C" void sigINTRHandler(int sig, siginfo_t* info, void* ucVoid) { | |
| 4320 if (UseSignalChaining) { | |
| 4321 struct sigaction *actp = os::Solaris::get_chained_signal_action(sig); | |
| 4322 if (actp && actp->sa_handler) { | |
| 4323 vm_exit_during_initialization("Signal chaining detected for VM interrupt signal, try -XX:+UseAltSigs"); | |
| 4324 } | |
| 4325 } | |
| 4326 } | |
| 4327 | |
| 4328 // This boolean allows users to forward their own non-matching signals | |
| 4329 // to JVM_handle_solaris_signal, harmlessly. | |
| 4330 bool os::Solaris::signal_handlers_are_installed = false; | |
| 4331 | |
| 4332 // For signal-chaining | |
| 4333 bool os::Solaris::libjsig_is_loaded = false; | |
| 4334 typedef struct sigaction *(*get_signal_t)(int); | |
| 4335 get_signal_t os::Solaris::get_signal_action = NULL; | |
| 4336 | |
| 4337 struct sigaction* os::Solaris::get_chained_signal_action(int sig) { | |
| 4338 struct sigaction *actp = NULL; | |
| 4339 | |
| 4340 if ((libjsig_is_loaded) && (sig <= Maxlibjsigsigs)) { | |
| 4341 // Retrieve the old signal handler from libjsig | |
| 4342 actp = (*get_signal_action)(sig); | |
| 4343 } | |
| 4344 if (actp == NULL) { | |
| 4345 // Retrieve the preinstalled signal handler from jvm | |
| 4346 actp = get_preinstalled_handler(sig); | |
| 4347 } | |
| 4348 | |
| 4349 return actp; | |
| 4350 } | |
| 4351 | |
| 4352 static bool call_chained_handler(struct sigaction *actp, int sig, | |
| 4353 siginfo_t *siginfo, void *context) { | |
| 4354 // Call the old signal handler | |
| 4355 if (actp->sa_handler == SIG_DFL) { | |
| 4356 // It's more reasonable to let jvm treat it as an unexpected exception | |
| 4357 // instead of taking the default action. | |
| 4358 return false; | |
| 4359 } else if (actp->sa_handler != SIG_IGN) { | |
| 4360 if ((actp->sa_flags & SA_NODEFER) == 0) { | |
| 4361 // automaticlly block the signal | |
| 4362 sigaddset(&(actp->sa_mask), sig); | |
| 4363 } | |
| 4364 | |
| 4365 sa_handler_t hand; | |
| 4366 sa_sigaction_t sa; | |
| 4367 bool siginfo_flag_set = (actp->sa_flags & SA_SIGINFO) != 0; | |
| 4368 // retrieve the chained handler | |
| 4369 if (siginfo_flag_set) { | |
| 4370 sa = actp->sa_sigaction; | |
| 4371 } else { | |
| 4372 hand = actp->sa_handler; | |
| 4373 } | |
| 4374 | |
| 4375 if ((actp->sa_flags & SA_RESETHAND) != 0) { | |
| 4376 actp->sa_handler = SIG_DFL; | |
| 4377 } | |
| 4378 | |
| 4379 // try to honor the signal mask | |
| 4380 sigset_t oset; | |
| 4381 thr_sigsetmask(SIG_SETMASK, &(actp->sa_mask), &oset); | |
| 4382 | |
| 4383 // call into the chained handler | |
| 4384 if (siginfo_flag_set) { | |
| 4385 (*sa)(sig, siginfo, context); | |
| 4386 } else { | |
| 4387 (*hand)(sig); | |
| 4388 } | |
| 4389 | |
| 4390 // restore the signal mask | |
| 4391 thr_sigsetmask(SIG_SETMASK, &oset, 0); | |
| 4392 } | |
| 4393 // Tell jvm's signal handler the signal is taken care of. | |
| 4394 return true; | |
| 4395 } | |
| 4396 | |
| 4397 bool os::Solaris::chained_handler(int sig, siginfo_t* siginfo, void* context) { | |
| 4398 bool chained = false; | |
| 4399 // signal-chaining | |
| 4400 if (UseSignalChaining) { | |
| 4401 struct sigaction *actp = get_chained_signal_action(sig); | |
| 4402 if (actp != NULL) { | |
| 4403 chained = call_chained_handler(actp, sig, siginfo, context); | |
| 4404 } | |
| 4405 } | |
| 4406 return chained; | |
| 4407 } | |
| 4408 | |
| 4409 struct sigaction* os::Solaris::get_preinstalled_handler(int sig) { | |
| 4410 assert((chainedsigactions != (struct sigaction *)NULL) && (preinstalled_sigs != (int *)NULL) , "signals not yet initialized"); | |
| 4411 if (preinstalled_sigs[sig] != 0) { | |
| 4412 return &chainedsigactions[sig]; | |
| 4413 } | |
| 4414 return NULL; | |
| 4415 } | |
| 4416 | |
| 4417 void os::Solaris::save_preinstalled_handler(int sig, struct sigaction& oldAct) { | |
| 4418 | |
| 4419 assert(sig > 0 && sig <= Maxsignum, "vm signal out of expected range"); | |
| 4420 assert((chainedsigactions != (struct sigaction *)NULL) && (preinstalled_sigs != (int *)NULL) , "signals not yet initialized"); | |
| 4421 chainedsigactions[sig] = oldAct; | |
| 4422 preinstalled_sigs[sig] = 1; | |
| 4423 } | |
| 4424 | |
| 4425 void os::Solaris::set_signal_handler(int sig, bool set_installed, bool oktochain) { | |
| 4426 // Check for overwrite. | |
| 4427 struct sigaction oldAct; | |
| 4428 sigaction(sig, (struct sigaction*)NULL, &oldAct); | |
| 4429 void* oldhand = oldAct.sa_sigaction ? CAST_FROM_FN_PTR(void*, oldAct.sa_sigaction) | |
| 4430 : CAST_FROM_FN_PTR(void*, oldAct.sa_handler); | |
| 4431 if (oldhand != CAST_FROM_FN_PTR(void*, SIG_DFL) && | |
| 4432 oldhand != CAST_FROM_FN_PTR(void*, SIG_IGN) && | |
| 4433 oldhand != CAST_FROM_FN_PTR(void*, signalHandler)) { | |
| 4434 if (AllowUserSignalHandlers || !set_installed) { | |
| 4435 // Do not overwrite; user takes responsibility to forward to us. | |
| 4436 return; | |
| 4437 } else if (UseSignalChaining) { | |
| 4438 if (oktochain) { | |
| 4439 // save the old handler in jvm | |
| 4440 save_preinstalled_handler(sig, oldAct); | |
| 4441 } else { | |
| 4442 vm_exit_during_initialization("Signal chaining not allowed for VM interrupt signal, try -XX:+UseAltSigs."); | |
| 4443 } | |
| 4444 // libjsig also interposes the sigaction() call below and saves the | |
| 4445 // old sigaction on it own. | |
| 4446 } else { | |
|
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|
4447 fatal(err_msg("Encountered unexpected pre-existing sigaction handler " |
|
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|
4448 "%#lx for signal %d.", (long)oldhand, sig)); |
| 0 | 4449 } |
| 4450 } | |
| 4451 | |
| 4452 struct sigaction sigAct; | |
| 4453 sigfillset(&(sigAct.sa_mask)); | |
| 4454 sigAct.sa_handler = SIG_DFL; | |
| 4455 | |
| 4456 sigAct.sa_sigaction = signalHandler; | |
| 4457 // Handle SIGSEGV on alternate signal stack if | |
| 4458 // not using stack banging | |
| 4459 if (!UseStackBanging && sig == SIGSEGV) { | |
| 4460 sigAct.sa_flags = SA_SIGINFO | SA_RESTART | SA_ONSTACK; | |
| 4461 // Interruptible i/o requires SA_RESTART cleared so EINTR | |
| 4462 // is returned instead of restarting system calls | |
| 4463 } else if (sig == os::Solaris::SIGinterrupt()) { | |
| 4464 sigemptyset(&sigAct.sa_mask); | |
| 4465 sigAct.sa_handler = NULL; | |
| 4466 sigAct.sa_flags = SA_SIGINFO; | |
| 4467 sigAct.sa_sigaction = sigINTRHandler; | |
| 4468 } else { | |
| 4469 sigAct.sa_flags = SA_SIGINFO | SA_RESTART; | |
| 4470 } | |
| 4471 os::Solaris::set_our_sigflags(sig, sigAct.sa_flags); | |
| 4472 | |
| 4473 sigaction(sig, &sigAct, &oldAct); | |
| 4474 | |
| 4475 void* oldhand2 = oldAct.sa_sigaction ? CAST_FROM_FN_PTR(void*, oldAct.sa_sigaction) | |
| 4476 : CAST_FROM_FN_PTR(void*, oldAct.sa_handler); | |
| 4477 assert(oldhand2 == oldhand, "no concurrent signal handler installation"); | |
| 4478 } | |
| 4479 | |
| 4480 | |
| 4481 #define DO_SIGNAL_CHECK(sig) \ | |
| 4482 if (!sigismember(&check_signal_done, sig)) \ | |
| 4483 os::Solaris::check_signal_handler(sig) | |
| 4484 | |
| 4485 // This method is a periodic task to check for misbehaving JNI applications | |
| 4486 // under CheckJNI, we can add any periodic checks here | |
| 4487 | |
| 4488 void os::run_periodic_checks() { | |
| 4489 // A big source of grief is hijacking virt. addr 0x0 on Solaris, | |
| 4490 // thereby preventing a NULL checks. | |
| 4491 if(!check_addr0_done) check_addr0_done = check_addr0(tty); | |
| 4492 | |
| 4493 if (check_signals == false) return; | |
| 4494 | |
| 4495 // SEGV and BUS if overridden could potentially prevent | |
| 4496 // generation of hs*.log in the event of a crash, debugging | |
| 4497 // such a case can be very challenging, so we absolutely | |
| 4498 // check for the following for a good measure: | |
| 4499 DO_SIGNAL_CHECK(SIGSEGV); | |
| 4500 DO_SIGNAL_CHECK(SIGILL); | |
| 4501 DO_SIGNAL_CHECK(SIGFPE); | |
| 4502 DO_SIGNAL_CHECK(SIGBUS); | |
| 4503 DO_SIGNAL_CHECK(SIGPIPE); | |
| 4504 DO_SIGNAL_CHECK(SIGXFSZ); | |
| 4505 | |
| 4506 // ReduceSignalUsage allows the user to override these handlers | |
| 4507 // see comments at the very top and jvm_solaris.h | |
| 4508 if (!ReduceSignalUsage) { | |
| 4509 DO_SIGNAL_CHECK(SHUTDOWN1_SIGNAL); | |
| 4510 DO_SIGNAL_CHECK(SHUTDOWN2_SIGNAL); | |
| 4511 DO_SIGNAL_CHECK(SHUTDOWN3_SIGNAL); | |
| 4512 DO_SIGNAL_CHECK(BREAK_SIGNAL); | |
| 4513 } | |
| 4514 | |
| 4515 // See comments above for using JVM1/JVM2 and UseAltSigs | |
| 4516 DO_SIGNAL_CHECK(os::Solaris::SIGinterrupt()); | |
| 4517 DO_SIGNAL_CHECK(os::Solaris::SIGasync()); | |
| 4518 | |
| 4519 } | |
| 4520 | |
| 4521 typedef int (*os_sigaction_t)(int, const struct sigaction *, struct sigaction *); | |
| 4522 | |
| 4523 static os_sigaction_t os_sigaction = NULL; | |
| 4524 | |
| 4525 void os::Solaris::check_signal_handler(int sig) { | |
| 4526 char buf[O_BUFLEN]; | |
| 4527 address jvmHandler = NULL; | |
| 4528 | |
| 4529 struct sigaction act; | |
| 4530 if (os_sigaction == NULL) { | |
| 4531 // only trust the default sigaction, in case it has been interposed | |
| 4532 os_sigaction = (os_sigaction_t)dlsym(RTLD_DEFAULT, "sigaction"); | |
| 4533 if (os_sigaction == NULL) return; | |
| 4534 } | |
| 4535 | |
| 4536 os_sigaction(sig, (struct sigaction*)NULL, &act); | |
| 4537 | |
| 4538 address thisHandler = (act.sa_flags & SA_SIGINFO) | |
| 4539 ? CAST_FROM_FN_PTR(address, act.sa_sigaction) | |
| 4540 : CAST_FROM_FN_PTR(address, act.sa_handler) ; | |
| 4541 | |
| 4542 | |
| 4543 switch(sig) { | |
| 4544 case SIGSEGV: | |
| 4545 case SIGBUS: | |
| 4546 case SIGFPE: | |
| 4547 case SIGPIPE: | |
| 4548 case SIGXFSZ: | |
| 4549 case SIGILL: | |
| 4550 jvmHandler = CAST_FROM_FN_PTR(address, signalHandler); | |
| 4551 break; | |
| 4552 | |
| 4553 case SHUTDOWN1_SIGNAL: | |
| 4554 case SHUTDOWN2_SIGNAL: | |
| 4555 case SHUTDOWN3_SIGNAL: | |
| 4556 case BREAK_SIGNAL: | |
| 4557 jvmHandler = (address)user_handler(); | |
| 4558 break; | |
| 4559 | |
| 4560 default: | |
| 4561 int intrsig = os::Solaris::SIGinterrupt(); | |
| 4562 int asynsig = os::Solaris::SIGasync(); | |
| 4563 | |
| 4564 if (sig == intrsig) { | |
| 4565 jvmHandler = CAST_FROM_FN_PTR(address, sigINTRHandler); | |
| 4566 } else if (sig == asynsig) { | |
| 4567 jvmHandler = CAST_FROM_FN_PTR(address, signalHandler); | |
| 4568 } else { | |
| 4569 return; | |
| 4570 } | |
| 4571 break; | |
| 4572 } | |
| 4573 | |
| 4574 | |
| 4575 if (thisHandler != jvmHandler) { | |
| 4576 tty->print("Warning: %s handler ", exception_name(sig, buf, O_BUFLEN)); | |
| 4577 tty->print("expected:%s", get_signal_handler_name(jvmHandler, buf, O_BUFLEN)); | |
| 4578 tty->print_cr(" found:%s", get_signal_handler_name(thisHandler, buf, O_BUFLEN)); | |
| 4579 // No need to check this sig any longer | |
| 4580 sigaddset(&check_signal_done, sig); | |
| 4581 } else if(os::Solaris::get_our_sigflags(sig) != 0 && act.sa_flags != os::Solaris::get_our_sigflags(sig)) { | |
| 4582 tty->print("Warning: %s handler flags ", exception_name(sig, buf, O_BUFLEN)); | |
| 4583 tty->print("expected:" PTR32_FORMAT, os::Solaris::get_our_sigflags(sig)); | |
| 4584 tty->print_cr(" found:" PTR32_FORMAT, act.sa_flags); | |
| 4585 // No need to check this sig any longer | |
| 4586 sigaddset(&check_signal_done, sig); | |
| 4587 } | |
| 4588 | |
| 4589 // Print all the signal handler state | |
| 4590 if (sigismember(&check_signal_done, sig)) { | |
| 4591 print_signal_handlers(tty, buf, O_BUFLEN); | |
| 4592 } | |
| 4593 | |
| 4594 } | |
| 4595 | |
| 4596 void os::Solaris::install_signal_handlers() { | |
| 4597 bool libjsigdone = false; | |
| 4598 signal_handlers_are_installed = true; | |
| 4599 | |
| 4600 // signal-chaining | |
| 4601 typedef void (*signal_setting_t)(); | |
| 4602 signal_setting_t begin_signal_setting = NULL; | |
| 4603 signal_setting_t end_signal_setting = NULL; | |
| 4604 begin_signal_setting = CAST_TO_FN_PTR(signal_setting_t, | |
| 4605 dlsym(RTLD_DEFAULT, "JVM_begin_signal_setting")); | |
| 4606 if (begin_signal_setting != NULL) { | |
| 4607 end_signal_setting = CAST_TO_FN_PTR(signal_setting_t, | |
| 4608 dlsym(RTLD_DEFAULT, "JVM_end_signal_setting")); | |
| 4609 get_signal_action = CAST_TO_FN_PTR(get_signal_t, | |
| 4610 dlsym(RTLD_DEFAULT, "JVM_get_signal_action")); | |
| 4611 get_libjsig_version = CAST_TO_FN_PTR(version_getting_t, | |
| 4612 dlsym(RTLD_DEFAULT, "JVM_get_libjsig_version")); | |
| 4613 libjsig_is_loaded = true; | |
| 4614 if (os::Solaris::get_libjsig_version != NULL) { | |
| 4615 libjsigversion = (*os::Solaris::get_libjsig_version)(); | |
| 4616 } | |
| 4617 assert(UseSignalChaining, "should enable signal-chaining"); | |
| 4618 } | |
| 4619 if (libjsig_is_loaded) { | |
| 4620 // Tell libjsig jvm is setting signal handlers | |
| 4621 (*begin_signal_setting)(); | |
| 4622 } | |
| 4623 | |
| 4624 set_signal_handler(SIGSEGV, true, true); | |
| 4625 set_signal_handler(SIGPIPE, true, true); | |
| 4626 set_signal_handler(SIGXFSZ, true, true); | |
| 4627 set_signal_handler(SIGBUS, true, true); | |
| 4628 set_signal_handler(SIGILL, true, true); | |
| 4629 set_signal_handler(SIGFPE, true, true); | |
| 4630 | |
| 4631 | |
| 4632 if (os::Solaris::SIGinterrupt() > OLDMAXSIGNUM || os::Solaris::SIGasync() > OLDMAXSIGNUM) { | |
| 4633 | |
| 4634 // Pre-1.4.1 Libjsig limited to signal chaining signals <= 32 so | |
| 4635 // can not register overridable signals which might be > 32 | |
| 4636 if (libjsig_is_loaded && libjsigversion <= JSIG_VERSION_1_4_1) { | |
| 4637 // Tell libjsig jvm has finished setting signal handlers | |
| 4638 (*end_signal_setting)(); | |
| 4639 libjsigdone = true; | |
| 4640 } | |
| 4641 } | |
| 4642 | |
| 4643 // Never ok to chain our SIGinterrupt | |
| 4644 set_signal_handler(os::Solaris::SIGinterrupt(), true, false); | |
| 4645 set_signal_handler(os::Solaris::SIGasync(), true, true); | |
| 4646 | |
| 4647 if (libjsig_is_loaded && !libjsigdone) { | |
| 4648 // Tell libjsig jvm finishes setting signal handlers | |
| 4649 (*end_signal_setting)(); | |
| 4650 } | |
| 4651 | |
| 4652 // We don't activate signal checker if libjsig is in place, we trust ourselves | |
|
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4653 // and if UserSignalHandler is installed all bets are off. |
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4654 // Log that signal checking is off only if -verbose:jni is specified. |
| 0 | 4655 if (CheckJNICalls) { |
| 4656 if (libjsig_is_loaded) { | |
|
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4657 if (PrintJNIResolving) { |
|
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4658 tty->print_cr("Info: libjsig is activated, all active signal checking is disabled"); |
|
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|
4659 } |
| 0 | 4660 check_signals = false; |
| 4661 } | |
| 4662 if (AllowUserSignalHandlers) { | |
|
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4663 if (PrintJNIResolving) { |
|
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4664 tty->print_cr("Info: AllowUserSignalHandlers is activated, all active signal checking is disabled"); |
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|
4665 } |
| 0 | 4666 check_signals = false; |
| 4667 } | |
| 4668 } | |
| 4669 } | |
| 4670 | |
| 4671 | |
| 4672 void report_error(const char* file_name, int line_no, const char* title, const char* format, ...); | |
| 4673 | |
| 4674 const char * signames[] = { | |
| 4675 "SIG0", | |
| 4676 "SIGHUP", "SIGINT", "SIGQUIT", "SIGILL", "SIGTRAP", | |
| 4677 "SIGABRT", "SIGEMT", "SIGFPE", "SIGKILL", "SIGBUS", | |
| 4678 "SIGSEGV", "SIGSYS", "SIGPIPE", "SIGALRM", "SIGTERM", | |
| 4679 "SIGUSR1", "SIGUSR2", "SIGCLD", "SIGPWR", "SIGWINCH", | |
| 4680 "SIGURG", "SIGPOLL", "SIGSTOP", "SIGTSTP", "SIGCONT", | |
| 4681 "SIGTTIN", "SIGTTOU", "SIGVTALRM", "SIGPROF", "SIGXCPU", | |
| 4682 "SIGXFSZ", "SIGWAITING", "SIGLWP", "SIGFREEZE", "SIGTHAW", | |
| 4683 "SIGCANCEL", "SIGLOST" | |
| 4684 }; | |
| 4685 | |
| 4686 const char* os::exception_name(int exception_code, char* buf, size_t size) { | |
| 4687 if (0 < exception_code && exception_code <= SIGRTMAX) { | |
| 4688 // signal | |
| 4689 if (exception_code < sizeof(signames)/sizeof(const char*)) { | |
| 4690 jio_snprintf(buf, size, "%s", signames[exception_code]); | |
| 4691 } else { | |
| 4692 jio_snprintf(buf, size, "SIG%d", exception_code); | |
| 4693 } | |
| 4694 return buf; | |
| 4695 } else { | |
| 4696 return NULL; | |
| 4697 } | |
| 4698 } | |
| 4699 | |
| 4700 // (Static) wrappers for the new libthread API | |
| 4701 int_fnP_thread_t_iP_uP_stack_tP_gregset_t os::Solaris::_thr_getstate; | |
| 4702 int_fnP_thread_t_i_gregset_t os::Solaris::_thr_setstate; | |
| 4703 int_fnP_thread_t_i os::Solaris::_thr_setmutator; | |
| 4704 int_fnP_thread_t os::Solaris::_thr_suspend_mutator; | |
| 4705 int_fnP_thread_t os::Solaris::_thr_continue_mutator; | |
| 4706 | |
|
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4707 // (Static) wrapper for getisax(2) call. |
|
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4708 os::Solaris::getisax_func_t os::Solaris::_getisax = 0; |
|
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4709 |
| 0 | 4710 // (Static) wrappers for the liblgrp API |
| 4711 os::Solaris::lgrp_home_func_t os::Solaris::_lgrp_home; | |
| 4712 os::Solaris::lgrp_init_func_t os::Solaris::_lgrp_init; | |
| 4713 os::Solaris::lgrp_fini_func_t os::Solaris::_lgrp_fini; | |
| 4714 os::Solaris::lgrp_root_func_t os::Solaris::_lgrp_root; | |
| 4715 os::Solaris::lgrp_children_func_t os::Solaris::_lgrp_children; | |
|
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|
4716 os::Solaris::lgrp_resources_func_t os::Solaris::_lgrp_resources; |
| 0 | 4717 os::Solaris::lgrp_nlgrps_func_t os::Solaris::_lgrp_nlgrps; |
| 4718 os::Solaris::lgrp_cookie_stale_func_t os::Solaris::_lgrp_cookie_stale; | |
| 4719 os::Solaris::lgrp_cookie_t os::Solaris::_lgrp_cookie = 0; | |
| 4720 | |
| 4721 // (Static) wrapper for meminfo() call. | |
| 4722 os::Solaris::meminfo_func_t os::Solaris::_meminfo = 0; | |
| 4723 | |
|
641
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
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parents:
548
diff
changeset
|
4724 static address resolve_symbol_lazy(const char* name) { |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4725 address addr = (address) dlsym(RTLD_DEFAULT, name); |
| 0 | 4726 if(addr == NULL) { |
| 4727 // RTLD_DEFAULT was not defined on some early versions of 2.5.1 | |
| 4728 addr = (address) dlsym(RTLD_NEXT, name); | |
|
641
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4729 } |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4730 return addr; |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4731 } |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4732 |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4733 static address resolve_symbol(const char* name) { |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4734 address addr = resolve_symbol_lazy(name); |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4735 if(addr == NULL) { |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4736 fatal(dlerror()); |
| 0 | 4737 } |
| 4738 return addr; | |
| 4739 } | |
| 4740 | |
| 4741 | |
| 4742 | |
| 4743 // isT2_libthread() | |
| 4744 // | |
| 4745 // Routine to determine if we are currently using the new T2 libthread. | |
| 4746 // | |
| 4747 // We determine if we are using T2 by reading /proc/self/lstatus and | |
| 4748 // looking for a thread with the ASLWP bit set. If we find this status | |
| 4749 // bit set, we must assume that we are NOT using T2. The T2 team | |
| 4750 // has approved this algorithm. | |
| 4751 // | |
| 4752 // We need to determine if we are running with the new T2 libthread | |
| 4753 // since setting native thread priorities is handled differently | |
| 4754 // when using this library. All threads created using T2 are bound | |
| 4755 // threads. Calling thr_setprio is meaningless in this case. | |
| 4756 // | |
| 4757 bool isT2_libthread() { | |
| 4758 static prheader_t * lwpArray = NULL; | |
| 4759 static int lwpSize = 0; | |
| 4760 static int lwpFile = -1; | |
| 4761 lwpstatus_t * that; | |
| 4762 char lwpName [128]; | |
| 4763 bool isT2 = false; | |
| 4764 | |
| 4765 #define ADR(x) ((uintptr_t)(x)) | |
| 4766 #define LWPINDEX(ary,ix) ((lwpstatus_t *)(((ary)->pr_entsize * (ix)) + (ADR((ary) + 1)))) | |
| 4767 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
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diff
changeset
|
4768 lwpFile = ::open("/proc/self/lstatus", O_RDONLY, 0); |
|
89
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4769 if (lwpFile < 0) { |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4770 if (ThreadPriorityVerbose) warning ("Couldn't open /proc/self/lstatus\n"); |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4771 return false; |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4772 } |
| 0 | 4773 lwpSize = 16*1024; |
| 4774 for (;;) { | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4775 ::lseek64 (lwpFile, 0, SEEK_SET); |
| 6197 | 4776 lwpArray = (prheader_t *)NEW_C_HEAP_ARRAY(char, lwpSize, mtInternal); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4777 if (::read(lwpFile, lwpArray, lwpSize) < 0) { |
|
89
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4778 if (ThreadPriorityVerbose) warning("Error reading /proc/self/lstatus\n"); |
| 0 | 4779 break; |
| 4780 } | |
|
89
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4781 if ((lwpArray->pr_nent * lwpArray->pr_entsize) <= lwpSize) { |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4782 // We got a good snapshot - now iterate over the list. |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4783 int aslwpcount = 0; |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4784 for (int i = 0; i < lwpArray->pr_nent; i++ ) { |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4785 that = LWPINDEX(lwpArray,i); |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4786 if (that->pr_flags & PR_ASLWP) { |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4787 aslwpcount++; |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4788 } |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4789 } |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4790 if (aslwpcount == 0) isT2 = true; |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4791 break; |
| 0 | 4792 } |
|
89
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4793 lwpSize = lwpArray->pr_nent * lwpArray->pr_entsize; |
| 6197 | 4794 FREE_C_HEAP_ARRAY(char, lwpArray, mtInternal); // retry. |
| 4795 } | |
| 4796 | |
| 4797 FREE_C_HEAP_ARRAY(char, lwpArray, mtInternal); | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4798 ::close (lwpFile); |
|
89
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4799 if (ThreadPriorityVerbose) { |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4800 if (isT2) tty->print_cr("We are running with a T2 libthread\n"); |
| 0 | 4801 else tty->print_cr("We are not running with a T2 libthread\n"); |
| 4802 } | |
|
89
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4803 return isT2; |
| 0 | 4804 } |
| 4805 | |
| 4806 | |
| 4807 void os::Solaris::libthread_init() { | |
| 4808 address func = (address)dlsym(RTLD_DEFAULT, "_thr_suspend_allmutators"); | |
| 4809 | |
| 4810 // Determine if we are running with the new T2 libthread | |
| 4811 os::Solaris::set_T2_libthread(isT2_libthread()); | |
| 4812 | |
| 4813 lwp_priocntl_init(); | |
| 4814 | |
| 4815 // RTLD_DEFAULT was not defined on some early versions of 5.5.1 | |
| 4816 if(func == NULL) { | |
| 4817 func = (address) dlsym(RTLD_NEXT, "_thr_suspend_allmutators"); | |
| 4818 // Guarantee that this VM is running on an new enough OS (5.6 or | |
| 4819 // later) that it will have a new enough libthread.so. | |
| 4820 guarantee(func != NULL, "libthread.so is too old."); | |
| 4821 } | |
| 4822 | |
| 4823 // Initialize the new libthread getstate API wrappers | |
| 4824 func = resolve_symbol("thr_getstate"); | |
| 4825 os::Solaris::set_thr_getstate(CAST_TO_FN_PTR(int_fnP_thread_t_iP_uP_stack_tP_gregset_t, func)); | |
| 4826 | |
| 4827 func = resolve_symbol("thr_setstate"); | |
| 4828 os::Solaris::set_thr_setstate(CAST_TO_FN_PTR(int_fnP_thread_t_i_gregset_t, func)); | |
| 4829 | |
| 4830 func = resolve_symbol("thr_setmutator"); | |
| 4831 os::Solaris::set_thr_setmutator(CAST_TO_FN_PTR(int_fnP_thread_t_i, func)); | |
| 4832 | |
| 4833 func = resolve_symbol("thr_suspend_mutator"); | |
| 4834 os::Solaris::set_thr_suspend_mutator(CAST_TO_FN_PTR(int_fnP_thread_t, func)); | |
| 4835 | |
| 4836 func = resolve_symbol("thr_continue_mutator"); | |
| 4837 os::Solaris::set_thr_continue_mutator(CAST_TO_FN_PTR(int_fnP_thread_t, func)); | |
| 4838 | |
| 4839 int size; | |
| 4840 void (*handler_info_func)(address *, int *); | |
| 4841 handler_info_func = CAST_TO_FN_PTR(void (*)(address *, int *), resolve_symbol("thr_sighndlrinfo")); | |
| 4842 handler_info_func(&handler_start, &size); | |
| 4843 handler_end = handler_start + size; | |
| 4844 } | |
| 4845 | |
| 4846 | |
| 4847 int_fnP_mutex_tP os::Solaris::_mutex_lock; | |
| 4848 int_fnP_mutex_tP os::Solaris::_mutex_trylock; | |
| 4849 int_fnP_mutex_tP os::Solaris::_mutex_unlock; | |
| 4850 int_fnP_mutex_tP_i_vP os::Solaris::_mutex_init; | |
| 4851 int_fnP_mutex_tP os::Solaris::_mutex_destroy; | |
| 4852 int os::Solaris::_mutex_scope = USYNC_THREAD; | |
| 4853 | |
| 4854 int_fnP_cond_tP_mutex_tP_timestruc_tP os::Solaris::_cond_timedwait; | |
| 4855 int_fnP_cond_tP_mutex_tP os::Solaris::_cond_wait; | |
| 4856 int_fnP_cond_tP os::Solaris::_cond_signal; | |
| 4857 int_fnP_cond_tP os::Solaris::_cond_broadcast; | |
| 4858 int_fnP_cond_tP_i_vP os::Solaris::_cond_init; | |
| 4859 int_fnP_cond_tP os::Solaris::_cond_destroy; | |
| 4860 int os::Solaris::_cond_scope = USYNC_THREAD; | |
| 4861 | |
| 4862 void os::Solaris::synchronization_init() { | |
| 4863 if(UseLWPSynchronization) { | |
| 4864 os::Solaris::set_mutex_lock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("_lwp_mutex_lock"))); | |
| 4865 os::Solaris::set_mutex_trylock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("_lwp_mutex_trylock"))); | |
| 4866 os::Solaris::set_mutex_unlock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("_lwp_mutex_unlock"))); | |
| 4867 os::Solaris::set_mutex_init(lwp_mutex_init); | |
| 4868 os::Solaris::set_mutex_destroy(lwp_mutex_destroy); | |
| 4869 os::Solaris::set_mutex_scope(USYNC_THREAD); | |
| 4870 | |
| 4871 os::Solaris::set_cond_timedwait(CAST_TO_FN_PTR(int_fnP_cond_tP_mutex_tP_timestruc_tP, resolve_symbol("_lwp_cond_timedwait"))); | |
| 4872 os::Solaris::set_cond_wait(CAST_TO_FN_PTR(int_fnP_cond_tP_mutex_tP, resolve_symbol("_lwp_cond_wait"))); | |
| 4873 os::Solaris::set_cond_signal(CAST_TO_FN_PTR(int_fnP_cond_tP, resolve_symbol("_lwp_cond_signal"))); | |
| 4874 os::Solaris::set_cond_broadcast(CAST_TO_FN_PTR(int_fnP_cond_tP, resolve_symbol("_lwp_cond_broadcast"))); | |
| 4875 os::Solaris::set_cond_init(lwp_cond_init); | |
| 4876 os::Solaris::set_cond_destroy(lwp_cond_destroy); | |
| 4877 os::Solaris::set_cond_scope(USYNC_THREAD); | |
| 4878 } | |
| 4879 else { | |
| 4880 os::Solaris::set_mutex_scope(USYNC_THREAD); | |
| 4881 os::Solaris::set_cond_scope(USYNC_THREAD); | |
| 4882 | |
| 4883 if(UsePthreads) { | |
| 4884 os::Solaris::set_mutex_lock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("pthread_mutex_lock"))); | |
| 4885 os::Solaris::set_mutex_trylock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("pthread_mutex_trylock"))); | |
| 4886 os::Solaris::set_mutex_unlock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("pthread_mutex_unlock"))); | |
| 4887 os::Solaris::set_mutex_init(pthread_mutex_default_init); | |
| 4888 os::Solaris::set_mutex_destroy(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("pthread_mutex_destroy"))); | |
| 4889 | |
| 4890 os::Solaris::set_cond_timedwait(CAST_TO_FN_PTR(int_fnP_cond_tP_mutex_tP_timestruc_tP, resolve_symbol("pthread_cond_timedwait"))); | |
| 4891 os::Solaris::set_cond_wait(CAST_TO_FN_PTR(int_fnP_cond_tP_mutex_tP, resolve_symbol("pthread_cond_wait"))); | |
| 4892 os::Solaris::set_cond_signal(CAST_TO_FN_PTR(int_fnP_cond_tP, resolve_symbol("pthread_cond_signal"))); | |
| 4893 os::Solaris::set_cond_broadcast(CAST_TO_FN_PTR(int_fnP_cond_tP, resolve_symbol("pthread_cond_broadcast"))); | |
| 4894 os::Solaris::set_cond_init(pthread_cond_default_init); | |
| 4895 os::Solaris::set_cond_destroy(CAST_TO_FN_PTR(int_fnP_cond_tP, resolve_symbol("pthread_cond_destroy"))); | |
| 4896 } | |
| 4897 else { | |
| 4898 os::Solaris::set_mutex_lock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("mutex_lock"))); | |
| 4899 os::Solaris::set_mutex_trylock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("mutex_trylock"))); | |
| 4900 os::Solaris::set_mutex_unlock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("mutex_unlock"))); | |
| 4901 os::Solaris::set_mutex_init(::mutex_init); | |
| 4902 os::Solaris::set_mutex_destroy(::mutex_destroy); | |
| 4903 | |
| 4904 os::Solaris::set_cond_timedwait(CAST_TO_FN_PTR(int_fnP_cond_tP_mutex_tP_timestruc_tP, resolve_symbol("cond_timedwait"))); | |
| 4905 os::Solaris::set_cond_wait(CAST_TO_FN_PTR(int_fnP_cond_tP_mutex_tP, resolve_symbol("cond_wait"))); | |
| 4906 os::Solaris::set_cond_signal(CAST_TO_FN_PTR(int_fnP_cond_tP, resolve_symbol("cond_signal"))); | |
| 4907 os::Solaris::set_cond_broadcast(CAST_TO_FN_PTR(int_fnP_cond_tP, resolve_symbol("cond_broadcast"))); | |
| 4908 os::Solaris::set_cond_init(::cond_init); | |
| 4909 os::Solaris::set_cond_destroy(::cond_destroy); | |
| 4910 } | |
| 4911 } | |
| 4912 } | |
| 4913 | |
|
462
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
4914 bool os::Solaris::liblgrp_init() { |
|
267
9d6a3a6891f8
6720130: NUMA allocator: The linux version should search for libnuma.so.1
iveresov
parents:
144
diff
changeset
|
4915 void *handle = dlopen("liblgrp.so.1", RTLD_LAZY); |
| 0 | 4916 if (handle != NULL) { |
| 4917 os::Solaris::set_lgrp_home(CAST_TO_FN_PTR(lgrp_home_func_t, dlsym(handle, "lgrp_home"))); | |
| 4918 os::Solaris::set_lgrp_init(CAST_TO_FN_PTR(lgrp_init_func_t, dlsym(handle, "lgrp_init"))); | |
| 4919 os::Solaris::set_lgrp_fini(CAST_TO_FN_PTR(lgrp_fini_func_t, dlsym(handle, "lgrp_fini"))); | |
| 4920 os::Solaris::set_lgrp_root(CAST_TO_FN_PTR(lgrp_root_func_t, dlsym(handle, "lgrp_root"))); | |
| 4921 os::Solaris::set_lgrp_children(CAST_TO_FN_PTR(lgrp_children_func_t, dlsym(handle, "lgrp_children"))); | |
|
144
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
4922 os::Solaris::set_lgrp_resources(CAST_TO_FN_PTR(lgrp_resources_func_t, dlsym(handle, "lgrp_resources"))); |
| 0 | 4923 os::Solaris::set_lgrp_nlgrps(CAST_TO_FN_PTR(lgrp_nlgrps_func_t, dlsym(handle, "lgrp_nlgrps"))); |
| 4924 os::Solaris::set_lgrp_cookie_stale(CAST_TO_FN_PTR(lgrp_cookie_stale_func_t, | |
| 4925 dlsym(handle, "lgrp_cookie_stale"))); | |
| 4926 | |
| 4927 lgrp_cookie_t c = lgrp_init(LGRP_VIEW_CALLER); | |
| 4928 set_lgrp_cookie(c); | |
|
462
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
4929 return true; |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
4930 } |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
4931 return false; |
| 0 | 4932 } |
| 4933 | |
| 4934 void os::Solaris::misc_sym_init() { | |
|
641
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4935 address func; |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4936 |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4937 // getisax |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4938 func = resolve_symbol_lazy("getisax"); |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4939 if (func != NULL) { |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4940 os::Solaris::_getisax = CAST_TO_FN_PTR(getisax_func_t, func); |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4941 } |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4942 |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4943 // meminfo |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4944 func = resolve_symbol_lazy("meminfo"); |
| 0 | 4945 if (func != NULL) { |
| 4946 os::Solaris::set_meminfo(CAST_TO_FN_PTR(meminfo_func_t, func)); | |
| 4947 } | |
| 4948 } | |
| 4949 | |
|
641
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4950 uint_t os::Solaris::getisax(uint32_t* array, uint_t n) { |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4951 assert(_getisax != NULL, "_getisax not set"); |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4952 return _getisax(array, n); |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4953 } |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4954 |
| 0 | 4955 // int pset_getloadavg(psetid_t pset, double loadavg[], int nelem); |
| 4956 typedef long (*pset_getloadavg_type)(psetid_t pset, double loadavg[], int nelem); | |
| 4957 static pset_getloadavg_type pset_getloadavg_ptr = NULL; | |
| 4958 | |
| 4959 void init_pset_getloadavg_ptr(void) { | |
| 4960 pset_getloadavg_ptr = | |
| 4961 (pset_getloadavg_type)dlsym(RTLD_DEFAULT, "pset_getloadavg"); | |
| 4962 if (PrintMiscellaneous && Verbose && pset_getloadavg_ptr == NULL) { | |
| 4963 warning("pset_getloadavg function not found"); | |
| 4964 } | |
| 4965 } | |
| 4966 | |
| 4967 int os::Solaris::_dev_zero_fd = -1; | |
| 4968 | |
| 4969 // this is called _before_ the global arguments have been parsed | |
| 4970 void os::init(void) { | |
| 4971 _initial_pid = getpid(); | |
| 4972 | |
| 4973 max_hrtime = first_hrtime = gethrtime(); | |
| 4974 | |
| 4975 init_random(1234567); | |
| 4976 | |
| 4977 page_size = sysconf(_SC_PAGESIZE); | |
| 4978 if (page_size == -1) | |
|
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1353
diff
changeset
|
4979 fatal(err_msg("os_solaris.cpp: os::init: sysconf failed (%s)", |
|
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1353
diff
changeset
|
4980 strerror(errno))); |
| 0 | 4981 init_page_sizes((size_t) page_size); |
| 4982 | |
| 4983 Solaris::initialize_system_info(); | |
| 4984 | |
|
641
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4985 // Initialize misc. symbols as soon as possible, so we can use them |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4986 // if we need them. |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4987 Solaris::misc_sym_init(); |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4988 |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4989 int fd = ::open("/dev/zero", O_RDWR); |
| 0 | 4990 if (fd < 0) { |
|
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1353
diff
changeset
|
4991 fatal(err_msg("os::init: cannot open /dev/zero (%s)", strerror(errno))); |
| 0 | 4992 } else { |
| 4993 Solaris::set_dev_zero_fd(fd); | |
| 4994 | |
| 4995 // Close on exec, child won't inherit. | |
| 4996 fcntl(fd, F_SETFD, FD_CLOEXEC); | |
| 4997 } | |
| 4998 | |
| 4999 clock_tics_per_sec = CLK_TCK; | |
| 5000 | |
| 5001 // check if dladdr1() exists; dladdr1 can provide more information than | |
| 5002 // dladdr for os::dll_address_to_function_name. It comes with SunOS 5.9 | |
| 5003 // and is available on linker patches for 5.7 and 5.8. | |
| 5004 // libdl.so must have been loaded, this call is just an entry lookup | |
| 5005 void * hdl = dlopen("libdl.so", RTLD_NOW); | |
| 5006 if (hdl) | |
| 5007 dladdr1_func = CAST_TO_FN_PTR(dladdr1_func_type, dlsym(hdl, "dladdr1")); | |
| 5008 | |
| 5009 // (Solaris only) this switches to calls that actually do locking. | |
| 5010 ThreadCritical::initialize(); | |
| 5011 | |
| 5012 main_thread = thr_self(); | |
| 5013 | |
| 5014 // Constant minimum stack size allowed. It must be at least | |
| 5015 // the minimum of what the OS supports (thr_min_stack()), and | |
| 5016 // enough to allow the thread to get to user bytecode execution. | |
| 5017 Solaris::min_stack_allowed = MAX2(thr_min_stack(), Solaris::min_stack_allowed); | |
| 5018 // If the pagesize of the VM is greater than 8K determine the appropriate | |
| 5019 // number of initial guard pages. The user can change this with the | |
| 5020 // command line arguments, if needed. | |
| 5021 if (vm_page_size() > 8*K) { | |
| 5022 StackYellowPages = 1; | |
| 5023 StackRedPages = 1; | |
| 5024 StackShadowPages = round_to((StackShadowPages*8*K), vm_page_size()) / vm_page_size(); | |
| 5025 } | |
| 5026 } | |
| 5027 | |
| 5028 // To install functions for atexit system call | |
| 5029 extern "C" { | |
| 5030 static void perfMemory_exit_helper() { | |
| 5031 perfMemory_exit(); | |
| 5032 } | |
| 5033 } | |
| 5034 | |
| 5035 // this is called _after_ the global arguments have been parsed | |
| 5036 jint os::init_2(void) { | |
| 5037 // try to enable extended file IO ASAP, see 6431278 | |
| 5038 os::Solaris::try_enable_extended_io(); | |
| 5039 | |
| 5040 // Allocate a single page and mark it as readable for safepoint polling. Also | |
| 5041 // use this first mmap call to check support for MAP_ALIGN. | |
| 5042 address polling_page = (address)Solaris::mmap_chunk((char*)page_size, | |
| 5043 page_size, | |
| 5044 MAP_PRIVATE | MAP_ALIGN, | |
| 5045 PROT_READ); | |
| 5046 if (polling_page == NULL) { | |
| 5047 has_map_align = false; | |
| 5048 polling_page = (address)Solaris::mmap_chunk(NULL, page_size, MAP_PRIVATE, | |
| 5049 PROT_READ); | |
| 5050 } | |
| 5051 | |
| 5052 os::set_polling_page(polling_page); | |
| 5053 | |
| 5054 #ifndef PRODUCT | |
| 5055 if( Verbose && PrintMiscellaneous ) | |
| 5056 tty->print("[SafePoint Polling address: " INTPTR_FORMAT "]\n", (intptr_t)polling_page); | |
| 5057 #endif | |
| 5058 | |
| 5059 if (!UseMembar) { | |
| 5060 address mem_serialize_page = (address)Solaris::mmap_chunk( NULL, page_size, MAP_PRIVATE, PROT_READ | PROT_WRITE ); | |
| 5061 guarantee( mem_serialize_page != NULL, "mmap Failed for memory serialize page"); | |
| 5062 os::set_memory_serialize_page( mem_serialize_page ); | |
| 5063 | |
| 5064 #ifndef PRODUCT | |
| 5065 if(Verbose && PrintMiscellaneous) | |
| 5066 tty->print("[Memory Serialize Page address: " INTPTR_FORMAT "]\n", (intptr_t)mem_serialize_page); | |
| 5067 #endif | |
|
12233
40136aa2cdb1
8010722: assert: failed: heap size is too big for compressed oops
tschatzl
parents:
12110
diff
changeset
|
5068 } |
| 0 | 5069 |
| 5070 // Check minimum allowable stack size for thread creation and to initialize | |
| 5071 // the java system classes, including StackOverflowError - depends on page | |
| 5072 // size. Add a page for compiler2 recursion in main thread. | |
|
1867
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
5073 // Add in 2*BytesPerWord times page size to account for VM stack during |
| 0 | 5074 // class initialization depending on 32 or 64 bit VM. |
|
1867
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
5075 os::Solaris::min_stack_allowed = MAX2(os::Solaris::min_stack_allowed, |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
5076 (size_t)(StackYellowPages+StackRedPages+StackShadowPages+ |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
5077 2*BytesPerWord COMPILER2_PRESENT(+1)) * page_size); |
| 0 | 5078 |
| 5079 size_t threadStackSizeInBytes = ThreadStackSize * K; | |
| 5080 if (threadStackSizeInBytes != 0 && | |
|
1867
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
5081 threadStackSizeInBytes < os::Solaris::min_stack_allowed) { |
| 0 | 5082 tty->print_cr("\nThe stack size specified is too small, Specify at least %dk", |
|
1867
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
5083 os::Solaris::min_stack_allowed/K); |
| 0 | 5084 return JNI_ERR; |
| 5085 } | |
| 5086 | |
| 5087 // For 64kbps there will be a 64kb page size, which makes | |
| 5088 // the usable default stack size quite a bit less. Increase the | |
| 5089 // stack for 64kb (or any > than 8kb) pages, this increases | |
| 5090 // virtual memory fragmentation (since we're not creating the | |
| 5091 // stack on a power of 2 boundary. The real fix for this | |
| 5092 // should be to fix the guard page mechanism. | |
| 5093 | |
| 5094 if (vm_page_size() > 8*K) { | |
| 5095 threadStackSizeInBytes = (threadStackSizeInBytes != 0) | |
| 5096 ? threadStackSizeInBytes + | |
| 5097 ((StackYellowPages + StackRedPages) * vm_page_size()) | |
| 5098 : 0; | |
| 5099 ThreadStackSize = threadStackSizeInBytes/K; | |
| 5100 } | |
| 5101 | |
| 5102 // Make the stack size a multiple of the page size so that | |
| 5103 // the yellow/red zones can be guarded. | |
| 5104 JavaThread::set_stack_size_at_create(round_to(threadStackSizeInBytes, | |
| 5105 vm_page_size())); | |
| 5106 | |
| 5107 Solaris::libthread_init(); | |
|
462
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5108 |
| 0 | 5109 if (UseNUMA) { |
|
462
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5110 if (!Solaris::liblgrp_init()) { |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5111 UseNUMA = false; |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5112 } else { |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5113 size_t lgrp_limit = os::numa_get_groups_num(); |
| 6197 | 5114 int *lgrp_ids = NEW_C_HEAP_ARRAY(int, lgrp_limit, mtInternal); |
|
462
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5115 size_t lgrp_num = os::numa_get_leaf_groups(lgrp_ids, lgrp_limit); |
| 6197 | 5116 FREE_C_HEAP_ARRAY(int, lgrp_ids, mtInternal); |
|
462
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5117 if (lgrp_num < 2) { |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5118 // There's only one locality group, disable NUMA. |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5119 UseNUMA = false; |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5120 } |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5121 } |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5122 if (!UseNUMA && ForceNUMA) { |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5123 UseNUMA = true; |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5124 } |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5125 } |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5126 |
| 0 | 5127 Solaris::signal_sets_init(); |
| 5128 Solaris::init_signal_mem(); | |
| 5129 Solaris::install_signal_handlers(); | |
| 5130 | |
| 5131 if (libjsigversion < JSIG_VERSION_1_4_1) { | |
| 5132 Maxlibjsigsigs = OLDMAXSIGNUM; | |
| 5133 } | |
| 5134 | |
| 5135 // initialize synchronization primitives to use either thread or | |
| 5136 // lwp synchronization (controlled by UseLWPSynchronization) | |
| 5137 Solaris::synchronization_init(); | |
| 5138 | |
| 5139 if (MaxFDLimit) { | |
| 5140 // set the number of file descriptors to max. print out error | |
| 5141 // if getrlimit/setrlimit fails but continue regardless. | |
| 5142 struct rlimit nbr_files; | |
| 5143 int status = getrlimit(RLIMIT_NOFILE, &nbr_files); | |
| 5144 if (status != 0) { | |
| 5145 if (PrintMiscellaneous && (Verbose || WizardMode)) | |
| 5146 perror("os::init_2 getrlimit failed"); | |
| 5147 } else { | |
| 5148 nbr_files.rlim_cur = nbr_files.rlim_max; | |
| 5149 status = setrlimit(RLIMIT_NOFILE, &nbr_files); | |
| 5150 if (status != 0) { | |
| 5151 if (PrintMiscellaneous && (Verbose || WizardMode)) | |
| 5152 perror("os::init_2 setrlimit failed"); | |
| 5153 } | |
| 5154 } | |
| 5155 } | |
| 5156 | |
| 5157 // Calculate theoretical max. size of Threads to guard gainst | |
| 5158 // artifical out-of-memory situations, where all available address- | |
| 5159 // space has been reserved by thread stacks. Default stack size is 1Mb. | |
| 5160 size_t pre_thread_stack_size = (JavaThread::stack_size_at_create()) ? | |
| 5161 JavaThread::stack_size_at_create() : (1*K*K); | |
| 5162 assert(pre_thread_stack_size != 0, "Must have a stack"); | |
| 5163 // Solaris has a maximum of 4Gb of user programs. Calculate the thread limit when | |
| 5164 // we should start doing Virtual Memory banging. Currently when the threads will | |
| 5165 // have used all but 200Mb of space. | |
| 5166 size_t max_address_space = ((unsigned int)4 * K * K * K) - (200 * K * K); | |
| 5167 Solaris::_os_thread_limit = max_address_space / pre_thread_stack_size; | |
| 5168 | |
| 5169 // at-exit methods are called in the reverse order of their registration. | |
| 5170 // In Solaris 7 and earlier, atexit functions are called on return from | |
| 5171 // main or as a result of a call to exit(3C). There can be only 32 of | |
| 5172 // these functions registered and atexit() does not set errno. In Solaris | |
| 5173 // 8 and later, there is no limit to the number of functions registered | |
| 5174 // and atexit() sets errno. In addition, in Solaris 8 and later, atexit | |
| 5175 // functions are called upon dlclose(3DL) in addition to return from main | |
| 5176 // and exit(3C). | |
| 5177 | |
| 5178 if (PerfAllowAtExitRegistration) { | |
| 5179 // only register atexit functions if PerfAllowAtExitRegistration is set. | |
| 5180 // atexit functions can be delayed until process exit time, which | |
| 5181 // can be problematic for embedded VM situations. Embedded VMs should | |
| 5182 // call DestroyJavaVM() to assure that VM resources are released. | |
| 5183 | |
| 5184 // note: perfMemory_exit_helper atexit function may be removed in | |
| 5185 // the future if the appropriate cleanup code can be added to the | |
| 5186 // VM_Exit VMOperation's doit method. | |
| 5187 if (atexit(perfMemory_exit_helper) != 0) { | |
| 5188 warning("os::init2 atexit(perfMemory_exit_helper) failed"); | |
| 5189 } | |
| 5190 } | |
| 5191 | |
| 5192 // Init pset_loadavg function pointer | |
| 5193 init_pset_getloadavg_ptr(); | |
| 5194 | |
| 5195 return JNI_OK; | |
| 5196 } | |
| 5197 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
5198 void os::init_3(void) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
5199 return; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
5200 } |
| 0 | 5201 |
| 5202 // Mark the polling page as unreadable | |
| 5203 void os::make_polling_page_unreadable(void) { | |
| 5204 if( mprotect((char *)_polling_page, page_size, PROT_NONE) != 0 ) | |
| 5205 fatal("Could not disable polling page"); | |
| 5206 }; | |
| 5207 | |
| 5208 // Mark the polling page as readable | |
| 5209 void os::make_polling_page_readable(void) { | |
| 5210 if( mprotect((char *)_polling_page, page_size, PROT_READ) != 0 ) | |
| 5211 fatal("Could not enable polling page"); | |
| 5212 }; | |
| 5213 | |
| 5214 // OS interface. | |
| 5215 | |
| 5216 bool os::check_heap(bool force) { return true; } | |
| 5217 | |
| 5218 typedef int (*vsnprintf_t)(char* buf, size_t count, const char* fmt, va_list argptr); | |
| 5219 static vsnprintf_t sol_vsnprintf = NULL; | |
| 5220 | |
| 5221 int local_vsnprintf(char* buf, size_t count, const char* fmt, va_list argptr) { | |
| 5222 if (!sol_vsnprintf) { | |
| 5223 //search for the named symbol in the objects that were loaded after libjvm | |
| 5224 void* where = RTLD_NEXT; | |
| 5225 if ((sol_vsnprintf = CAST_TO_FN_PTR(vsnprintf_t, dlsym(where, "__vsnprintf"))) == NULL) | |
| 5226 sol_vsnprintf = CAST_TO_FN_PTR(vsnprintf_t, dlsym(where, "vsnprintf")); | |
| 5227 if (!sol_vsnprintf){ | |
| 5228 //search for the named symbol in the objects that were loaded before libjvm | |
| 5229 where = RTLD_DEFAULT; | |
| 5230 if ((sol_vsnprintf = CAST_TO_FN_PTR(vsnprintf_t, dlsym(where, "__vsnprintf"))) == NULL) | |
| 5231 sol_vsnprintf = CAST_TO_FN_PTR(vsnprintf_t, dlsym(where, "vsnprintf")); | |
| 5232 assert(sol_vsnprintf != NULL, "vsnprintf not found"); | |
| 5233 } | |
| 5234 } | |
| 5235 return (*sol_vsnprintf)(buf, count, fmt, argptr); | |
| 5236 } | |
| 5237 | |
| 5238 | |
| 5239 // Is a (classpath) directory empty? | |
| 5240 bool os::dir_is_empty(const char* path) { | |
| 5241 DIR *dir = NULL; | |
| 5242 struct dirent *ptr; | |
| 5243 | |
| 5244 dir = opendir(path); | |
| 5245 if (dir == NULL) return true; | |
| 5246 | |
| 5247 /* Scan the directory */ | |
| 5248 bool result = true; | |
| 5249 char buf[sizeof(struct dirent) + MAX_PATH]; | |
| 5250 struct dirent *dbuf = (struct dirent *) buf; | |
| 5251 while (result && (ptr = readdir(dir, dbuf)) != NULL) { | |
| 5252 if (strcmp(ptr->d_name, ".") != 0 && strcmp(ptr->d_name, "..") != 0) { | |
| 5253 result = false; | |
| 5254 } | |
| 5255 } | |
| 5256 closedir(dir); | |
| 5257 return result; | |
| 5258 } | |
| 5259 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5260 // This code originates from JDK's sysOpen and open64_w |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5261 // from src/solaris/hpi/src/system_md.c |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5262 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5263 #ifndef O_DELETE |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5264 #define O_DELETE 0x10000 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5265 #endif |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5266 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5267 // Open a file. Unlink the file immediately after open returns |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5268 // if the specified oflag has the O_DELETE flag set. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5269 // O_DELETE is used only in j2se/src/share/native/java/util/zip/ZipFile.c |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5270 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5271 int os::open(const char *path, int oflag, int mode) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5272 if (strlen(path) > MAX_PATH - 1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5273 errno = ENAMETOOLONG; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5274 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5275 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5276 int fd; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5277 int o_delete = (oflag & O_DELETE); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5278 oflag = oflag & ~O_DELETE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5279 |
| 2097 | 5280 fd = ::open64(path, oflag, mode); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5281 if (fd == -1) return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5282 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5283 //If the open succeeded, the file might still be a directory |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5284 { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5285 struct stat64 buf64; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5286 int ret = ::fstat64(fd, &buf64); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5287 int st_mode = buf64.st_mode; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5288 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5289 if (ret != -1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5290 if ((st_mode & S_IFMT) == S_IFDIR) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5291 errno = EISDIR; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5292 ::close(fd); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5293 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5294 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5295 } else { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5296 ::close(fd); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5297 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5298 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5299 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5300 /* |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5301 * 32-bit Solaris systems suffer from: |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5302 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5303 * - an historical default soft limit of 256 per-process file |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5304 * descriptors that is too low for many Java programs. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5305 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5306 * - a design flaw where file descriptors created using stdio |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5307 * fopen must be less than 256, _even_ when the first limit above |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5308 * has been raised. This can cause calls to fopen (but not calls to |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5309 * open, for example) to fail mysteriously, perhaps in 3rd party |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5310 * native code (although the JDK itself uses fopen). One can hardly |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5311 * criticize them for using this most standard of all functions. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5312 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5313 * We attempt to make everything work anyways by: |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5314 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5315 * - raising the soft limit on per-process file descriptors beyond |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5316 * 256 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5317 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5318 * - As of Solaris 10u4, we can request that Solaris raise the 256 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5319 * stdio fopen limit by calling function enable_extended_FILE_stdio. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5320 * This is done in init_2 and recorded in enabled_extended_FILE_stdio |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5321 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5322 * - If we are stuck on an old (pre 10u4) Solaris system, we can |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5323 * workaround the bug by remapping non-stdio file descriptors below |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5324 * 256 to ones beyond 256, which is done below. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5325 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5326 * See: |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5327 * 1085341: 32-bit stdio routines should support file descriptors >255 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5328 * 6533291: Work around 32-bit Solaris stdio limit of 256 open files |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5329 * 6431278: Netbeans crash on 32 bit Solaris: need to call |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5330 * enable_extended_FILE_stdio() in VM initialisation |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5331 * Giri Mandalika's blog |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5332 * http://technopark02.blogspot.com/2005_05_01_archive.html |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5333 */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5334 #ifndef _LP64 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5335 if ((!enabled_extended_FILE_stdio) && fd < 256) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5336 int newfd = ::fcntl(fd, F_DUPFD, 256); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5337 if (newfd != -1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5338 ::close(fd); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5339 fd = newfd; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5340 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5341 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5342 #endif // 32-bit Solaris |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5343 /* |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5344 * All file descriptors that are opened in the JVM and not |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5345 * specifically destined for a subprocess should have the |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5346 * close-on-exec flag set. If we don't set it, then careless 3rd |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5347 * party native code might fork and exec without closing all |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5348 * appropriate file descriptors (e.g. as we do in closeDescriptors in |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5349 * UNIXProcess.c), and this in turn might: |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5350 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5351 * - cause end-of-file to fail to be detected on some file |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5352 * descriptors, resulting in mysterious hangs, or |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5353 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5354 * - might cause an fopen in the subprocess to fail on a system |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5355 * suffering from bug 1085341. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5356 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5357 * (Yes, the default setting of the close-on-exec flag is a Unix |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5358 * design flaw) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5359 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5360 * See: |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5361 * 1085341: 32-bit stdio routines should support file descriptors >255 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5362 * 4843136: (process) pipe file descriptor from Runtime.exec not being closed |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5363 * 6339493: (process) Runtime.exec does not close all file descriptors on Solaris 9 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5364 */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5365 #ifdef FD_CLOEXEC |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5366 { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5367 int flags = ::fcntl(fd, F_GETFD); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5368 if (flags != -1) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5369 ::fcntl(fd, F_SETFD, flags | FD_CLOEXEC); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5370 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5371 #endif |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5372 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5373 if (o_delete != 0) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5374 ::unlink(path); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5375 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5376 return fd; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5377 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5378 |
| 0 | 5379 // create binary file, rewriting existing file if required |
| 5380 int os::create_binary_file(const char* path, bool rewrite_existing) { | |
| 5381 int oflags = O_WRONLY | O_CREAT; | |
| 5382 if (!rewrite_existing) { | |
| 5383 oflags |= O_EXCL; | |
| 5384 } | |
| 5385 return ::open64(path, oflags, S_IREAD | S_IWRITE); | |
| 5386 } | |
| 5387 | |
| 5388 // return current position of file pointer | |
| 5389 jlong os::current_file_offset(int fd) { | |
| 5390 return (jlong)::lseek64(fd, (off64_t)0, SEEK_CUR); | |
| 5391 } | |
| 5392 | |
| 5393 // move file pointer to the specified offset | |
| 5394 jlong os::seek_to_file_offset(int fd, jlong offset) { | |
| 5395 return (jlong)::lseek64(fd, (off64_t)offset, SEEK_SET); | |
| 5396 } | |
| 5397 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5398 jlong os::lseek(int fd, jlong offset, int whence) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5399 return (jlong) ::lseek64(fd, offset, whence); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5400 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5401 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5402 char * os::native_path(char *path) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5403 return path; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5404 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5405 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5406 int os::ftruncate(int fd, jlong length) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5407 return ::ftruncate64(fd, length); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5408 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5409 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5410 int os::fsync(int fd) { |
|
828eafbd85cc
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diff
changeset
|
5411 RESTARTABLE_RETURN_INT(::fsync(fd)); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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parents:
1972
diff
changeset
|
5412 } |
|
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diff
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|
5413 |
|
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diff
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|
5414 int os::available(int fd, jlong *bytes) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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1972
diff
changeset
|
5415 jlong cur, end; |
|
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1972
diff
changeset
|
5416 int mode; |
|
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6348631: remove the use of the HPI library from Hotspot
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1972
diff
changeset
|
5417 struct stat64 buf64; |
|
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diff
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|
5418 |
|
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diff
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|
5419 if (::fstat64(fd, &buf64) >= 0) { |
|
828eafbd85cc
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diff
changeset
|
5420 mode = buf64.st_mode; |
|
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diff
changeset
|
5421 if (S_ISCHR(mode) || S_ISFIFO(mode) || S_ISSOCK(mode)) { |
|
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6348631: remove the use of the HPI library from Hotspot
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diff
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|
5422 /* |
|
828eafbd85cc
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1972
diff
changeset
|
5423 * XXX: is the following call interruptible? If so, this might |
|
828eafbd85cc
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1972
diff
changeset
|
5424 * need to go through the INTERRUPT_IO() wrapper as for other |
|
828eafbd85cc
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1972
diff
changeset
|
5425 * blocking, interruptible calls in this file. |
|
828eafbd85cc
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ikrylov
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1972
diff
changeset
|
5426 */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
5427 int n,ioctl_return; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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1972
diff
changeset
|
5428 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
5429 INTERRUPTIBLE(::ioctl(fd, FIONREAD, &n),ioctl_return,os::Solaris::clear_interrupted); |
|
828eafbd85cc
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ikrylov
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1972
diff
changeset
|
5430 if (ioctl_return>= 0) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5431 *bytes = n; |
|
828eafbd85cc
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ikrylov
parents:
1972
diff
changeset
|
5432 return 1; |
|
828eafbd85cc
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ikrylov
parents:
1972
diff
changeset
|
5433 } |
|
828eafbd85cc
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parents:
1972
diff
changeset
|
5434 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5435 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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1972
diff
changeset
|
5436 if ((cur = ::lseek64(fd, 0L, SEEK_CUR)) == -1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5437 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5438 } else if ((end = ::lseek64(fd, 0L, SEEK_END)) == -1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5439 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5440 } else if (::lseek64(fd, cur, SEEK_SET) == -1) { |
|
828eafbd85cc
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ikrylov
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1972
diff
changeset
|
5441 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5442 } |
|
828eafbd85cc
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1972
diff
changeset
|
5443 *bytes = end - cur; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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parents:
1972
diff
changeset
|
5444 return 1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5445 } |
|
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diff
changeset
|
5446 |
| 0 | 5447 // Map a block of memory. |
| 6197 | 5448 char* os::pd_map_memory(int fd, const char* file_name, size_t file_offset, |
| 0 | 5449 char *addr, size_t bytes, bool read_only, |
| 5450 bool allow_exec) { | |
| 5451 int prot; | |
| 5452 int flags; | |
| 5453 | |
| 5454 if (read_only) { | |
| 5455 prot = PROT_READ; | |
| 5456 flags = MAP_SHARED; | |
| 5457 } else { | |
| 5458 prot = PROT_READ | PROT_WRITE; | |
| 5459 flags = MAP_PRIVATE; | |
| 5460 } | |
| 5461 | |
| 5462 if (allow_exec) { | |
| 5463 prot |= PROT_EXEC; | |
| 5464 } | |
| 5465 | |
| 5466 if (addr != NULL) { | |
| 5467 flags |= MAP_FIXED; | |
| 5468 } | |
| 5469 | |
| 5470 char* mapped_address = (char*)mmap(addr, (size_t)bytes, prot, flags, | |
| 5471 fd, file_offset); | |
| 5472 if (mapped_address == MAP_FAILED) { | |
| 5473 return NULL; | |
| 5474 } | |
| 5475 return mapped_address; | |
| 5476 } | |
| 5477 | |
| 5478 | |
| 5479 // Remap a block of memory. | |
| 6197 | 5480 char* os::pd_remap_memory(int fd, const char* file_name, size_t file_offset, |
| 0 | 5481 char *addr, size_t bytes, bool read_only, |
| 5482 bool allow_exec) { | |
| 5483 // same as map_memory() on this OS | |
| 5484 return os::map_memory(fd, file_name, file_offset, addr, bytes, read_only, | |
| 5485 allow_exec); | |
| 5486 } | |
| 5487 | |
| 5488 | |
| 5489 // Unmap a block of memory. | |
| 6197 | 5490 bool os::pd_unmap_memory(char* addr, size_t bytes) { |
| 0 | 5491 return munmap(addr, bytes) == 0; |
| 5492 } | |
| 5493 | |
| 5494 void os::pause() { | |
| 5495 char filename[MAX_PATH]; | |
| 5496 if (PauseAtStartupFile && PauseAtStartupFile[0]) { | |
| 5497 jio_snprintf(filename, MAX_PATH, PauseAtStartupFile); | |
| 5498 } else { | |
| 5499 jio_snprintf(filename, MAX_PATH, "./vm.paused.%d", current_process_id()); | |
| 5500 } | |
| 5501 | |
| 5502 int fd = ::open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0666); | |
| 5503 if (fd != -1) { | |
| 5504 struct stat buf; | |
|
1980
828eafbd85cc
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ikrylov
parents:
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diff
changeset
|
5505 ::close(fd); |
| 0 | 5506 while (::stat(filename, &buf) == 0) { |
| 5507 (void)::poll(NULL, 0, 100); | |
| 5508 } | |
| 5509 } else { | |
| 5510 jio_fprintf(stderr, | |
| 5511 "Could not open pause file '%s', continuing immediately.\n", filename); | |
| 5512 } | |
| 5513 } | |
| 5514 | |
| 5515 #ifndef PRODUCT | |
| 5516 #ifdef INTERPOSE_ON_SYSTEM_SYNCH_FUNCTIONS | |
| 5517 // Turn this on if you need to trace synch operations. | |
| 5518 // Set RECORD_SYNCH_LIMIT to a large-enough value, | |
| 5519 // and call record_synch_enable and record_synch_disable | |
| 5520 // around the computation of interest. | |
| 5521 | |
| 5522 void record_synch(char* name, bool returning); // defined below | |
| 5523 | |
| 5524 class RecordSynch { | |
| 5525 char* _name; | |
| 5526 public: | |
| 5527 RecordSynch(char* name) :_name(name) | |
| 5528 { record_synch(_name, false); } | |
| 5529 ~RecordSynch() { record_synch(_name, true); } | |
| 5530 }; | |
| 5531 | |
| 5532 #define CHECK_SYNCH_OP(ret, name, params, args, inner) \ | |
| 5533 extern "C" ret name params { \ | |
| 5534 typedef ret name##_t params; \ | |
| 5535 static name##_t* implem = NULL; \ | |
| 5536 static int callcount = 0; \ | |
| 5537 if (implem == NULL) { \ | |
| 5538 implem = (name##_t*) dlsym(RTLD_NEXT, #name); \ | |
| 5539 if (implem == NULL) fatal(dlerror()); \ | |
| 5540 } \ | |
| 5541 ++callcount; \ | |
| 5542 RecordSynch _rs(#name); \ | |
| 5543 inner; \ | |
| 5544 return implem args; \ | |
| 5545 } | |
| 5546 // in dbx, examine callcounts this way: | |
| 5547 // for n in $(eval whereis callcount | awk '{print $2}'); do print $n; done | |
| 5548 | |
| 5549 #define CHECK_POINTER_OK(p) \ | |
|
6725
da91efe96a93
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coleenp
parents:
6200
diff
changeset
|
5550 (!Universe::is_fully_initialized() || !Universe::is_reserved_heap((oop)(p))) |
| 0 | 5551 #define CHECK_MU \ |
| 5552 if (!CHECK_POINTER_OK(mu)) fatal("Mutex must be in C heap only."); | |
| 5553 #define CHECK_CV \ | |
| 5554 if (!CHECK_POINTER_OK(cv)) fatal("Condvar must be in C heap only."); | |
| 5555 #define CHECK_P(p) \ | |
| 5556 if (!CHECK_POINTER_OK(p)) fatal(false, "Pointer must be in C heap only."); | |
| 5557 | |
| 5558 #define CHECK_MUTEX(mutex_op) \ | |
| 5559 CHECK_SYNCH_OP(int, mutex_op, (mutex_t *mu), (mu), CHECK_MU); | |
| 5560 | |
| 5561 CHECK_MUTEX( mutex_lock) | |
| 5562 CHECK_MUTEX( _mutex_lock) | |
| 5563 CHECK_MUTEX( mutex_unlock) | |
| 5564 CHECK_MUTEX(_mutex_unlock) | |
| 5565 CHECK_MUTEX( mutex_trylock) | |
| 5566 CHECK_MUTEX(_mutex_trylock) | |
| 5567 | |
| 5568 #define CHECK_COND(cond_op) \ | |
| 5569 CHECK_SYNCH_OP(int, cond_op, (cond_t *cv, mutex_t *mu), (cv, mu), CHECK_MU;CHECK_CV); | |
| 5570 | |
| 5571 CHECK_COND( cond_wait); | |
| 5572 CHECK_COND(_cond_wait); | |
| 5573 CHECK_COND(_cond_wait_cancel); | |
| 5574 | |
| 5575 #define CHECK_COND2(cond_op) \ | |
| 5576 CHECK_SYNCH_OP(int, cond_op, (cond_t *cv, mutex_t *mu, timestruc_t* ts), (cv, mu, ts), CHECK_MU;CHECK_CV); | |
| 5577 | |
| 5578 CHECK_COND2( cond_timedwait); | |
| 5579 CHECK_COND2(_cond_timedwait); | |
| 5580 CHECK_COND2(_cond_timedwait_cancel); | |
| 5581 | |
| 5582 // do the _lwp_* versions too | |
| 5583 #define mutex_t lwp_mutex_t | |
| 5584 #define cond_t lwp_cond_t | |
| 5585 CHECK_MUTEX( _lwp_mutex_lock) | |
| 5586 CHECK_MUTEX( _lwp_mutex_unlock) | |
| 5587 CHECK_MUTEX( _lwp_mutex_trylock) | |
| 5588 CHECK_MUTEX( __lwp_mutex_lock) | |
| 5589 CHECK_MUTEX( __lwp_mutex_unlock) | |
| 5590 CHECK_MUTEX( __lwp_mutex_trylock) | |
| 5591 CHECK_MUTEX(___lwp_mutex_lock) | |
| 5592 CHECK_MUTEX(___lwp_mutex_unlock) | |
| 5593 | |
| 5594 CHECK_COND( _lwp_cond_wait); | |
| 5595 CHECK_COND( __lwp_cond_wait); | |
| 5596 CHECK_COND(___lwp_cond_wait); | |
| 5597 | |
| 5598 CHECK_COND2( _lwp_cond_timedwait); | |
| 5599 CHECK_COND2( __lwp_cond_timedwait); | |
| 5600 #undef mutex_t | |
| 5601 #undef cond_t | |
| 5602 | |
| 5603 CHECK_SYNCH_OP(int, _lwp_suspend2, (int lwp, int *n), (lwp, n), 0); | |
| 5604 CHECK_SYNCH_OP(int,__lwp_suspend2, (int lwp, int *n), (lwp, n), 0); | |
| 5605 CHECK_SYNCH_OP(int, _lwp_kill, (int lwp, int n), (lwp, n), 0); | |
| 5606 CHECK_SYNCH_OP(int,__lwp_kill, (int lwp, int n), (lwp, n), 0); | |
| 5607 CHECK_SYNCH_OP(int, _lwp_sema_wait, (lwp_sema_t* p), (p), CHECK_P(p)); | |
| 5608 CHECK_SYNCH_OP(int,__lwp_sema_wait, (lwp_sema_t* p), (p), CHECK_P(p)); | |
| 5609 CHECK_SYNCH_OP(int, _lwp_cond_broadcast, (lwp_cond_t* cv), (cv), CHECK_CV); | |
| 5610 CHECK_SYNCH_OP(int,__lwp_cond_broadcast, (lwp_cond_t* cv), (cv), CHECK_CV); | |
| 5611 | |
| 5612 | |
| 5613 // recording machinery: | |
| 5614 | |
| 5615 enum { RECORD_SYNCH_LIMIT = 200 }; | |
| 5616 char* record_synch_name[RECORD_SYNCH_LIMIT]; | |
| 5617 void* record_synch_arg0ptr[RECORD_SYNCH_LIMIT]; | |
| 5618 bool record_synch_returning[RECORD_SYNCH_LIMIT]; | |
| 5619 thread_t record_synch_thread[RECORD_SYNCH_LIMIT]; | |
| 5620 int record_synch_count = 0; | |
| 5621 bool record_synch_enabled = false; | |
| 5622 | |
| 5623 // in dbx, examine recorded data this way: | |
| 5624 // for n in name arg0ptr returning thread; do print record_synch_$n[0..record_synch_count-1]; done | |
| 5625 | |
| 5626 void record_synch(char* name, bool returning) { | |
| 5627 if (record_synch_enabled) { | |
| 5628 if (record_synch_count < RECORD_SYNCH_LIMIT) { | |
| 5629 record_synch_name[record_synch_count] = name; | |
| 5630 record_synch_returning[record_synch_count] = returning; | |
| 5631 record_synch_thread[record_synch_count] = thr_self(); | |
| 5632 record_synch_arg0ptr[record_synch_count] = &name; | |
| 5633 record_synch_count++; | |
| 5634 } | |
| 5635 // put more checking code here: | |
| 5636 // ... | |
| 5637 } | |
| 5638 } | |
| 5639 | |
| 5640 void record_synch_enable() { | |
| 5641 // start collecting trace data, if not already doing so | |
| 5642 if (!record_synch_enabled) record_synch_count = 0; | |
| 5643 record_synch_enabled = true; | |
| 5644 } | |
| 5645 | |
| 5646 void record_synch_disable() { | |
| 5647 // stop collecting trace data | |
| 5648 record_synch_enabled = false; | |
| 5649 } | |
| 5650 | |
| 5651 #endif // INTERPOSE_ON_SYSTEM_SYNCH_FUNCTIONS | |
| 5652 #endif // PRODUCT | |
| 5653 | |
| 5654 const intptr_t thr_time_off = (intptr_t)(&((prusage_t *)(NULL))->pr_utime); | |
| 5655 const intptr_t thr_time_size = (intptr_t)(&((prusage_t *)(NULL))->pr_ttime) - | |
| 5656 (intptr_t)(&((prusage_t *)(NULL))->pr_utime); | |
| 5657 | |
| 5658 | |
| 5659 // JVMTI & JVM monitoring and management support | |
| 5660 // The thread_cpu_time() and current_thread_cpu_time() are only | |
| 5661 // supported if is_thread_cpu_time_supported() returns true. | |
| 5662 // They are not supported on Solaris T1. | |
| 5663 | |
| 5664 // current_thread_cpu_time(bool) and thread_cpu_time(Thread*, bool) | |
| 5665 // are used by JVM M&M and JVMTI to get user+sys or user CPU time | |
| 5666 // of a thread. | |
| 5667 // | |
| 5668 // current_thread_cpu_time() and thread_cpu_time(Thread *) | |
| 5669 // returns the fast estimate available on the platform. | |
| 5670 | |
| 5671 // hrtime_t gethrvtime() return value includes | |
| 5672 // user time but does not include system time | |
| 5673 jlong os::current_thread_cpu_time() { | |
| 5674 return (jlong) gethrvtime(); | |
| 5675 } | |
| 5676 | |
| 5677 jlong os::thread_cpu_time(Thread *thread) { | |
| 5678 // return user level CPU time only to be consistent with | |
| 5679 // what current_thread_cpu_time returns. | |
| 5680 // thread_cpu_time_info() must be changed if this changes | |
| 5681 return os::thread_cpu_time(thread, false /* user time only */); | |
| 5682 } | |
| 5683 | |
| 5684 jlong os::current_thread_cpu_time(bool user_sys_cpu_time) { | |
| 5685 if (user_sys_cpu_time) { | |
| 5686 return os::thread_cpu_time(Thread::current(), user_sys_cpu_time); | |
| 5687 } else { | |
| 5688 return os::current_thread_cpu_time(); | |
| 5689 } | |
| 5690 } | |
| 5691 | |
| 5692 jlong os::thread_cpu_time(Thread *thread, bool user_sys_cpu_time) { | |
| 5693 char proc_name[64]; | |
| 5694 int count; | |
| 5695 prusage_t prusage; | |
| 5696 jlong lwp_time; | |
| 5697 int fd; | |
| 5698 | |
| 5699 sprintf(proc_name, "/proc/%d/lwp/%d/lwpusage", | |
| 5700 getpid(), | |
| 5701 thread->osthread()->lwp_id()); | |
|
1980
828eafbd85cc
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1972
diff
changeset
|
5702 fd = ::open(proc_name, O_RDONLY); |
| 0 | 5703 if ( fd == -1 ) return -1; |
| 5704 | |
| 5705 do { | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5706 count = ::pread(fd, |
| 0 | 5707 (void *)&prusage.pr_utime, |
| 5708 thr_time_size, | |
| 5709 thr_time_off); | |
| 5710 } while (count < 0 && errno == EINTR); | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5711 ::close(fd); |
| 0 | 5712 if ( count < 0 ) return -1; |
| 5713 | |
| 5714 if (user_sys_cpu_time) { | |
| 5715 // user + system CPU time | |
| 5716 lwp_time = (((jlong)prusage.pr_stime.tv_sec + | |
| 5717 (jlong)prusage.pr_utime.tv_sec) * (jlong)1000000000) + | |
| 5718 (jlong)prusage.pr_stime.tv_nsec + | |
| 5719 (jlong)prusage.pr_utime.tv_nsec; | |
| 5720 } else { | |
| 5721 // user level CPU time only | |
| 5722 lwp_time = ((jlong)prusage.pr_utime.tv_sec * (jlong)1000000000) + | |
| 5723 (jlong)prusage.pr_utime.tv_nsec; | |
| 5724 } | |
| 5725 | |
| 5726 return(lwp_time); | |
| 5727 } | |
| 5728 | |
| 5729 void os::current_thread_cpu_time_info(jvmtiTimerInfo *info_ptr) { | |
| 5730 info_ptr->max_value = ALL_64_BITS; // will not wrap in less than 64 bits | |
| 5731 info_ptr->may_skip_backward = false; // elapsed time not wall time | |
| 5732 info_ptr->may_skip_forward = false; // elapsed time not wall time | |
| 5733 info_ptr->kind = JVMTI_TIMER_USER_CPU; // only user time is returned | |
| 5734 } | |
| 5735 | |
| 5736 void os::thread_cpu_time_info(jvmtiTimerInfo *info_ptr) { | |
| 5737 info_ptr->max_value = ALL_64_BITS; // will not wrap in less than 64 bits | |
| 5738 info_ptr->may_skip_backward = false; // elapsed time not wall time | |
| 5739 info_ptr->may_skip_forward = false; // elapsed time not wall time | |
| 5740 info_ptr->kind = JVMTI_TIMER_USER_CPU; // only user time is returned | |
| 5741 } | |
| 5742 | |
| 5743 bool os::is_thread_cpu_time_supported() { | |
| 5744 if ( os::Solaris::T2_libthread() || UseBoundThreads ) { | |
| 5745 return true; | |
| 5746 } else { | |
| 5747 return false; | |
| 5748 } | |
| 5749 } | |
| 5750 | |
| 5751 // System loadavg support. Returns -1 if load average cannot be obtained. | |
| 5752 // Return the load average for our processor set if the primitive exists | |
| 5753 // (Solaris 9 and later). Otherwise just return system wide loadavg. | |
| 5754 int os::loadavg(double loadavg[], int nelem) { | |
| 5755 if (pset_getloadavg_ptr != NULL) { | |
| 5756 return (*pset_getloadavg_ptr)(PS_MYID, loadavg, nelem); | |
| 5757 } else { | |
| 5758 return ::getloadavg(loadavg, nelem); | |
| 5759 } | |
| 5760 } | |
| 5761 | |
| 5762 //--------------------------------------------------------------------------------- | |
| 5763 | |
|
1681
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bobv
parents:
1642
diff
changeset
|
5764 bool os::find(address addr, outputStream* st) { |
| 0 | 5765 Dl_info dlinfo; |
| 5766 memset(&dlinfo, 0, sizeof(dlinfo)); | |
|
11092
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
5767 if (dladdr(addr, &dlinfo) != 0) { |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
5768 st->print(PTR_FORMAT ": ", addr); |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
5769 if (dlinfo.dli_sname != NULL && dlinfo.dli_saddr != NULL) { |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
5770 st->print("%s+%#lx", dlinfo.dli_sname, addr-(intptr_t)dlinfo.dli_saddr); |
|
11092
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
5771 } else if (dlinfo.dli_fbase != NULL) |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
5772 st->print("<offset %#lx>", addr-(intptr_t)dlinfo.dli_fbase); |
| 0 | 5773 else |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
5774 st->print("<absolute address>"); |
|
11092
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
5775 if (dlinfo.dli_fname != NULL) { |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
5776 st->print(" in %s", dlinfo.dli_fname); |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
5777 } |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
5778 if (dlinfo.dli_fbase != NULL) { |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
5779 st->print(" at " PTR_FORMAT, dlinfo.dli_fbase); |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
5780 } |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
5781 st->cr(); |
| 0 | 5782 |
| 5783 if (Verbose) { | |
| 5784 // decode some bytes around the PC | |
|
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
9059
diff
changeset
|
5785 address begin = clamp_address_in_page(addr-40, addr, os::vm_page_size()); |
|
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
9059
diff
changeset
|
5786 address end = clamp_address_in_page(addr+40, addr, os::vm_page_size()); |
| 0 | 5787 address lowest = (address) dlinfo.dli_sname; |
| 5788 if (!lowest) lowest = (address) dlinfo.dli_fbase; | |
| 5789 if (begin < lowest) begin = lowest; | |
| 5790 Dl_info dlinfo2; | |
|
11092
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
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10986
diff
changeset
|
5791 if (dladdr(end, &dlinfo2) != 0 && dlinfo2.dli_saddr != dlinfo.dli_saddr |
| 0 | 5792 && end > dlinfo2.dli_saddr && dlinfo2.dli_saddr > begin) |
| 5793 end = (address) dlinfo2.dli_saddr; | |
|
1681
126ea7725993
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bobv
parents:
1642
diff
changeset
|
5794 Disassembler::decode(begin, end, st); |
| 0 | 5795 } |
| 5796 return true; | |
| 5797 } | |
| 5798 return false; | |
| 5799 } | |
| 5800 | |
| 5801 // Following function has been added to support HotSparc's libjvm.so running | |
| 5802 // under Solaris production JDK 1.2.2 / 1.3.0. These came from | |
| 5803 // src/solaris/hpi/native_threads in the EVM codebase. | |
| 5804 // | |
| 5805 // NOTE: This is no longer needed in the 1.3.1 and 1.4 production release | |
| 5806 // libraries and should thus be removed. We will leave it behind for a while | |
| 5807 // until we no longer want to able to run on top of 1.3.0 Solaris production | |
| 5808 // JDK. See 4341971. | |
| 5809 | |
| 5810 #define STACK_SLACK 0x800 | |
| 5811 | |
| 5812 extern "C" { | |
| 5813 intptr_t sysThreadAvailableStackWithSlack() { | |
| 5814 stack_t st; | |
| 5815 intptr_t retval, stack_top; | |
| 5816 retval = thr_stksegment(&st); | |
| 5817 assert(retval == 0, "incorrect return value from thr_stksegment"); | |
| 5818 assert((address)&st < (address)st.ss_sp, "Invalid stack base returned"); | |
| 5819 assert((address)&st > (address)st.ss_sp-st.ss_size, "Invalid stack size returned"); | |
| 5820 stack_top=(intptr_t)st.ss_sp-st.ss_size; | |
| 5821 return ((intptr_t)&stack_top - stack_top - STACK_SLACK); | |
| 5822 } | |
| 5823 } | |
| 5824 | |
| 5825 // ObjectMonitor park-unpark infrastructure ... | |
| 5826 // | |
| 5827 // We implement Solaris and Linux PlatformEvents with the | |
| 5828 // obvious condvar-mutex-flag triple. | |
| 5829 // Another alternative that works quite well is pipes: | |
| 5830 // Each PlatformEvent consists of a pipe-pair. | |
| 5831 // The thread associated with the PlatformEvent | |
| 5832 // calls park(), which reads from the input end of the pipe. | |
| 5833 // Unpark() writes into the other end of the pipe. | |
| 5834 // The write-side of the pipe must be set NDELAY. | |
| 5835 // Unfortunately pipes consume a large # of handles. | |
| 5836 // Native solaris lwp_park() and lwp_unpark() work nicely, too. | |
| 5837 // Using pipes for the 1st few threads might be workable, however. | |
| 5838 // | |
| 5839 // park() is permitted to return spuriously. | |
| 5840 // Callers of park() should wrap the call to park() in | |
| 5841 // an appropriate loop. A litmus test for the correct | |
| 5842 // usage of park is the following: if park() were modified | |
| 5843 // to immediately return 0 your code should still work, | |
| 5844 // albeit degenerating to a spin loop. | |
| 5845 // | |
| 5846 // An interesting optimization for park() is to use a trylock() | |
| 5847 // to attempt to acquire the mutex. If the trylock() fails | |
| 5848 // then we know that a concurrent unpark() operation is in-progress. | |
| 5849 // in that case the park() code could simply set _count to 0 | |
| 5850 // and return immediately. The subsequent park() operation *might* | |
| 5851 // return immediately. That's harmless as the caller of park() is | |
| 5852 // expected to loop. By using trylock() we will have avoided a | |
| 5853 // avoided a context switch caused by contention on the per-thread mutex. | |
| 5854 // | |
| 5855 // TODO-FIXME: | |
| 5856 // 1. Reconcile Doug's JSR166 j.u.c park-unpark with the | |
| 5857 // objectmonitor implementation. | |
| 5858 // 2. Collapse the JSR166 parker event, and the | |
| 5859 // objectmonitor ParkEvent into a single "Event" construct. | |
| 5860 // 3. In park() and unpark() add: | |
| 5861 // assert (Thread::current() == AssociatedWith). | |
| 5862 // 4. add spurious wakeup injection on a -XX:EarlyParkReturn=N switch. | |
| 5863 // 1-out-of-N park() operations will return immediately. | |
| 5864 // | |
| 5865 // _Event transitions in park() | |
| 5866 // -1 => -1 : illegal | |
| 5867 // 1 => 0 : pass - return immediately | |
| 5868 // 0 => -1 : block | |
| 5869 // | |
| 5870 // _Event serves as a restricted-range semaphore. | |
| 5871 // | |
| 5872 // Another possible encoding of _Event would be with | |
| 5873 // explicit "PARKED" == 01b and "SIGNALED" == 10b bits. | |
| 5874 // | |
| 5875 // TODO-FIXME: add DTRACE probes for: | |
| 5876 // 1. Tx parks | |
| 5877 // 2. Ty unparks Tx | |
| 5878 // 3. Tx resumes from park | |
| 5879 | |
| 5880 | |
| 5881 // value determined through experimentation | |
| 5882 #define ROUNDINGFIX 11 | |
| 5883 | |
| 5884 // utility to compute the abstime argument to timedwait. | |
| 5885 // TODO-FIXME: switch from compute_abstime() to unpackTime(). | |
| 5886 | |
| 5887 static timestruc_t* compute_abstime(timestruc_t* abstime, jlong millis) { | |
| 5888 // millis is the relative timeout time | |
| 5889 // abstime will be the absolute timeout time | |
| 5890 if (millis < 0) millis = 0; | |
| 5891 struct timeval now; | |
| 5892 int status = gettimeofday(&now, NULL); | |
| 5893 assert(status == 0, "gettimeofday"); | |
| 5894 jlong seconds = millis / 1000; | |
| 5895 jlong max_wait_period; | |
| 5896 | |
| 5897 if (UseLWPSynchronization) { | |
| 5898 // forward port of fix for 4275818 (not sleeping long enough) | |
| 5899 // There was a bug in Solaris 6, 7 and pre-patch 5 of 8 where | |
| 5900 // _lwp_cond_timedwait() used a round_down algorithm rather | |
| 5901 // than a round_up. For millis less than our roundfactor | |
| 5902 // it rounded down to 0 which doesn't meet the spec. | |
| 5903 // For millis > roundfactor we may return a bit sooner, but | |
| 5904 // since we can not accurately identify the patch level and | |
| 5905 // this has already been fixed in Solaris 9 and 8 we will | |
| 5906 // leave it alone rather than always rounding down. | |
| 5907 | |
| 5908 if (millis > 0 && millis < ROUNDINGFIX) millis = ROUNDINGFIX; | |
| 5909 // It appears that when we go directly through Solaris _lwp_cond_timedwait() | |
| 5910 // the acceptable max time threshold is smaller than for libthread on 2.5.1 and 2.6 | |
| 5911 max_wait_period = 21000000; | |
| 5912 } else { | |
| 5913 max_wait_period = 50000000; | |
| 5914 } | |
| 5915 millis %= 1000; | |
| 5916 if (seconds > max_wait_period) { // see man cond_timedwait(3T) | |
| 5917 seconds = max_wait_period; | |
| 5918 } | |
| 5919 abstime->tv_sec = now.tv_sec + seconds; | |
| 5920 long usec = now.tv_usec + millis * 1000; | |
| 5921 if (usec >= 1000000) { | |
| 5922 abstime->tv_sec += 1; | |
| 5923 usec -= 1000000; | |
| 5924 } | |
| 5925 abstime->tv_nsec = usec * 1000; | |
| 5926 return abstime; | |
| 5927 } | |
| 5928 | |
| 5929 // Test-and-clear _Event, always leaves _Event set to 0, returns immediately. | |
| 5930 // Conceptually TryPark() should be equivalent to park(0). | |
| 5931 | |
| 5932 int os::PlatformEvent::TryPark() { | |
| 5933 for (;;) { | |
| 5934 const int v = _Event ; | |
| 5935 guarantee ((v == 0) || (v == 1), "invariant") ; | |
| 5936 if (Atomic::cmpxchg (0, &_Event, v) == v) return v ; | |
| 5937 } | |
| 5938 } | |
| 5939 | |
| 5940 void os::PlatformEvent::park() { // AKA: down() | |
| 5941 // Invariant: Only the thread associated with the Event/PlatformEvent | |
| 5942 // may call park(). | |
| 5943 int v ; | |
| 5944 for (;;) { | |
| 5945 v = _Event ; | |
| 5946 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break ; | |
| 5947 } | |
| 5948 guarantee (v >= 0, "invariant") ; | |
| 5949 if (v == 0) { | |
| 5950 // Do this the hard way by blocking ... | |
| 5951 // See http://monaco.sfbay/detail.jsf?cr=5094058. | |
| 5952 // TODO-FIXME: for Solaris SPARC set fprs.FEF=0 prior to parking. | |
| 5953 // Only for SPARC >= V8PlusA | |
| 5954 #if defined(__sparc) && defined(COMPILER2) | |
| 5955 if (ClearFPUAtPark) { _mark_fpu_nosave() ; } | |
| 5956 #endif | |
| 5957 int status = os::Solaris::mutex_lock(_mutex); | |
| 5958 assert_status(status == 0, status, "mutex_lock"); | |
| 5959 guarantee (_nParked == 0, "invariant") ; | |
| 5960 ++ _nParked ; | |
| 5961 while (_Event < 0) { | |
| 5962 // for some reason, under 2.7 lwp_cond_wait() may return ETIME ... | |
| 5963 // Treat this the same as if the wait was interrupted | |
| 5964 // With usr/lib/lwp going to kernel, always handle ETIME | |
| 5965 status = os::Solaris::cond_wait(_cond, _mutex); | |
| 5966 if (status == ETIME) status = EINTR ; | |
| 5967 assert_status(status == 0 || status == EINTR, status, "cond_wait"); | |
| 5968 } | |
| 5969 -- _nParked ; | |
| 5970 _Event = 0 ; | |
| 5971 status = os::Solaris::mutex_unlock(_mutex); | |
| 5972 assert_status(status == 0, status, "mutex_unlock"); | |
|
7629
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diff
changeset
|
5973 // Paranoia to ensure our locked and lock-free paths interact |
|
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7456
diff
changeset
|
5974 // correctly with each other. |
|
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
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7456
diff
changeset
|
5975 OrderAccess::fence(); |
| 0 | 5976 } |
| 5977 } | |
| 5978 | |
| 5979 int os::PlatformEvent::park(jlong millis) { | |
| 5980 guarantee (_nParked == 0, "invariant") ; | |
| 5981 int v ; | |
| 5982 for (;;) { | |
| 5983 v = _Event ; | |
| 5984 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break ; | |
| 5985 } | |
| 5986 guarantee (v >= 0, "invariant") ; | |
| 5987 if (v != 0) return OS_OK ; | |
| 5988 | |
| 5989 int ret = OS_TIMEOUT; | |
| 5990 timestruc_t abst; | |
| 5991 compute_abstime (&abst, millis); | |
| 5992 | |
| 5993 // See http://monaco.sfbay/detail.jsf?cr=5094058. | |
| 5994 // For Solaris SPARC set fprs.FEF=0 prior to parking. | |
| 5995 // Only for SPARC >= V8PlusA | |
| 5996 #if defined(__sparc) && defined(COMPILER2) | |
| 5997 if (ClearFPUAtPark) { _mark_fpu_nosave() ; } | |
| 5998 #endif | |
| 5999 int status = os::Solaris::mutex_lock(_mutex); | |
| 6000 assert_status(status == 0, status, "mutex_lock"); | |
| 6001 guarantee (_nParked == 0, "invariant") ; | |
| 6002 ++ _nParked ; | |
| 6003 while (_Event < 0) { | |
| 6004 int status = os::Solaris::cond_timedwait(_cond, _mutex, &abst); | |
| 6005 assert_status(status == 0 || status == EINTR || | |
| 6006 status == ETIME || status == ETIMEDOUT, | |
| 6007 status, "cond_timedwait"); | |
| 6008 if (!FilterSpuriousWakeups) break ; // previous semantics | |
| 6009 if (status == ETIME || status == ETIMEDOUT) break ; | |
| 6010 // We consume and ignore EINTR and spurious wakeups. | |
| 6011 } | |
| 6012 -- _nParked ; | |
| 6013 if (_Event >= 0) ret = OS_OK ; | |
| 6014 _Event = 0 ; | |
| 6015 status = os::Solaris::mutex_unlock(_mutex); | |
| 6016 assert_status(status == 0, status, "mutex_unlock"); | |
|
7629
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dcubed
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diff
changeset
|
6017 // Paranoia to ensure our locked and lock-free paths interact |
|
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
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diff
changeset
|
6018 // correctly with each other. |
|
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
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7456
diff
changeset
|
6019 OrderAccess::fence(); |
| 0 | 6020 return ret; |
| 6021 } | |
| 6022 | |
| 6023 void os::PlatformEvent::unpark() { | |
|
7629
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8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
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diff
changeset
|
6024 // Transitions for _Event: |
|
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
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diff
changeset
|
6025 // 0 :=> 1 |
|
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
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diff
changeset
|
6026 // 1 :=> 1 |
|
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
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diff
changeset
|
6027 // -1 :=> either 0 or 1; must signal target thread |
|
22ba8c8ce6a6
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7456
diff
changeset
|
6028 // That is, we can safely transition _Event from -1 to either |
|
22ba8c8ce6a6
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7456
diff
changeset
|
6029 // 0 or 1. Forcing 1 is slightly more efficient for back-to-back |
|
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
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diff
changeset
|
6030 // unpark() calls. |
|
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
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diff
changeset
|
6031 // See also: "Semaphores in Plan 9" by Mullender & Cox |
|
22ba8c8ce6a6
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dcubed
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7456
diff
changeset
|
6032 // |
|
22ba8c8ce6a6
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7456
diff
changeset
|
6033 // Note: Forcing a transition from "-1" to "1" on an unpark() means |
|
22ba8c8ce6a6
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dcubed
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7456
diff
changeset
|
6034 // that it will take two back-to-back park() calls for the owning |
|
22ba8c8ce6a6
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diff
changeset
|
6035 // thread to block. This has the benefit of forcing a spurious return |
|
22ba8c8ce6a6
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diff
changeset
|
6036 // from the first park() call after an unpark() call which will help |
|
22ba8c8ce6a6
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diff
changeset
|
6037 // shake out uses of park() and unpark() without condition variables. |
|
22ba8c8ce6a6
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diff
changeset
|
6038 |
|
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diff
changeset
|
6039 if (Atomic::xchg(1, &_Event) >= 0) return; |
| 0 | 6040 |
| 6041 // If the thread associated with the event was parked, wake it. | |
|
7629
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diff
changeset
|
6042 // Wait for the thread assoc with the PlatformEvent to vacate. |
|
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
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diff
changeset
|
6043 int status = os::Solaris::mutex_lock(_mutex); |
|
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
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diff
changeset
|
6044 assert_status(status == 0, status, "mutex_lock"); |
|
22ba8c8ce6a6
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dcubed
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diff
changeset
|
6045 int AnyWaiters = _nParked; |
|
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
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diff
changeset
|
6046 status = os::Solaris::mutex_unlock(_mutex); |
|
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
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7456
diff
changeset
|
6047 assert_status(status == 0, status, "mutex_unlock"); |
|
22ba8c8ce6a6
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dcubed
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diff
changeset
|
6048 guarantee(AnyWaiters == 0 || AnyWaiters == 1, "invariant"); |
|
22ba8c8ce6a6
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diff
changeset
|
6049 if (AnyWaiters != 0) { |
|
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
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diff
changeset
|
6050 // We intentional signal *after* dropping the lock |
|
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
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diff
changeset
|
6051 // to avoid a common class of futile wakeups. |
|
22ba8c8ce6a6
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dcubed
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diff
changeset
|
6052 status = os::Solaris::cond_signal(_cond); |
|
22ba8c8ce6a6
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dcubed
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diff
changeset
|
6053 assert_status(status == 0, status, "cond_signal"); |
| 0 | 6054 } |
| 6055 } | |
| 6056 | |
| 6057 // JSR166 | |
| 6058 // ------------------------------------------------------- | |
| 6059 | |
| 6060 /* | |
| 6061 * The solaris and linux implementations of park/unpark are fairly | |
| 6062 * conservative for now, but can be improved. They currently use a | |
| 6063 * mutex/condvar pair, plus _counter. | |
| 6064 * Park decrements _counter if > 0, else does a condvar wait. Unpark | |
| 6065 * sets count to 1 and signals condvar. Only one thread ever waits | |
| 6066 * on the condvar. Contention seen when trying to park implies that someone | |
| 6067 * is unparking you, so don't wait. And spurious returns are fine, so there | |
| 6068 * is no need to track notifications. | |
| 6069 */ | |
| 6070 | |
| 6071 #define MAX_SECS 100000000 | |
| 6072 /* | |
| 6073 * This code is common to linux and solaris and will be moved to a | |
| 6074 * common place in dolphin. | |
| 6075 * | |
| 6076 * The passed in time value is either a relative time in nanoseconds | |
| 6077 * or an absolute time in milliseconds. Either way it has to be unpacked | |
| 6078 * into suitable seconds and nanoseconds components and stored in the | |
| 6079 * given timespec structure. | |
| 6080 * Given time is a 64-bit value and the time_t used in the timespec is only | |
| 6081 * a signed-32-bit value (except on 64-bit Linux) we have to watch for | |
| 6082 * overflow if times way in the future are given. Further on Solaris versions | |
| 6083 * prior to 10 there is a restriction (see cond_timedwait) that the specified | |
| 6084 * number of seconds, in abstime, is less than current_time + 100,000,000. | |
| 6085 * As it will be 28 years before "now + 100000000" will overflow we can | |
| 6086 * ignore overflow and just impose a hard-limit on seconds using the value | |
| 6087 * of "now + 100,000,000". This places a limit on the timeout of about 3.17 | |
| 6088 * years from "now". | |
| 6089 */ | |
| 6090 static void unpackTime(timespec* absTime, bool isAbsolute, jlong time) { | |
| 6091 assert (time > 0, "convertTime"); | |
| 6092 | |
| 6093 struct timeval now; | |
| 6094 int status = gettimeofday(&now, NULL); | |
| 6095 assert(status == 0, "gettimeofday"); | |
| 6096 | |
| 6097 time_t max_secs = now.tv_sec + MAX_SECS; | |
| 6098 | |
| 6099 if (isAbsolute) { | |
| 6100 jlong secs = time / 1000; | |
| 6101 if (secs > max_secs) { | |
| 6102 absTime->tv_sec = max_secs; | |
| 6103 } | |
| 6104 else { | |
| 6105 absTime->tv_sec = secs; | |
| 6106 } | |
| 6107 absTime->tv_nsec = (time % 1000) * NANOSECS_PER_MILLISEC; | |
| 6108 } | |
| 6109 else { | |
| 6110 jlong secs = time / NANOSECS_PER_SEC; | |
| 6111 if (secs >= MAX_SECS) { | |
| 6112 absTime->tv_sec = max_secs; | |
| 6113 absTime->tv_nsec = 0; | |
| 6114 } | |
| 6115 else { | |
| 6116 absTime->tv_sec = now.tv_sec + secs; | |
| 6117 absTime->tv_nsec = (time % NANOSECS_PER_SEC) + now.tv_usec*1000; | |
| 6118 if (absTime->tv_nsec >= NANOSECS_PER_SEC) { | |
| 6119 absTime->tv_nsec -= NANOSECS_PER_SEC; | |
| 6120 ++absTime->tv_sec; // note: this must be <= max_secs | |
| 6121 } | |
| 6122 } | |
| 6123 } | |
| 6124 assert(absTime->tv_sec >= 0, "tv_sec < 0"); | |
| 6125 assert(absTime->tv_sec <= max_secs, "tv_sec > max_secs"); | |
| 6126 assert(absTime->tv_nsec >= 0, "tv_nsec < 0"); | |
| 6127 assert(absTime->tv_nsec < NANOSECS_PER_SEC, "tv_nsec >= nanos_per_sec"); | |
| 6128 } | |
| 6129 | |
| 6130 void Parker::park(bool isAbsolute, jlong time) { | |
|
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|
6131 // Ideally we'd do something useful while spinning, such |
|
22ba8c8ce6a6
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diff
changeset
|
6132 // as calling unpackTime(). |
| 0 | 6133 |
| 6134 // Optional fast-path check: | |
| 6135 // Return immediately if a permit is available. | |
|
7629
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diff
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|
6136 // We depend on Atomic::xchg() having full barrier semantics |
|
22ba8c8ce6a6
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diff
changeset
|
6137 // since we are doing a lock-free update to _counter. |
|
22ba8c8ce6a6
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dcubed
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7456
diff
changeset
|
6138 if (Atomic::xchg(0, &_counter) > 0) return; |
| 0 | 6139 |
| 6140 // Optional fast-exit: Check interrupt before trying to wait | |
| 6141 Thread* thread = Thread::current(); | |
| 6142 assert(thread->is_Java_thread(), "Must be JavaThread"); | |
| 6143 JavaThread *jt = (JavaThread *)thread; | |
| 6144 if (Thread::is_interrupted(thread, false)) { | |
| 6145 return; | |
| 6146 } | |
| 6147 | |
| 6148 // First, demultiplex/decode time arguments | |
| 6149 timespec absTime; | |
|
1865
1c352af0135d
6763959: java.util.concurrent.locks.LockSupport.parkUntil(0) blocks forever
acorn
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1681
diff
changeset
|
6150 if (time < 0 || (isAbsolute && time == 0) ) { // don't wait at all |
| 0 | 6151 return; |
| 6152 } | |
| 6153 if (time > 0) { | |
| 6154 // Warning: this code might be exposed to the old Solaris time | |
| 6155 // round-down bugs. Grep "roundingFix" for details. | |
| 6156 unpackTime(&absTime, isAbsolute, time); | |
| 6157 } | |
| 6158 | |
| 6159 // Enter safepoint region | |
| 6160 // Beware of deadlocks such as 6317397. | |
| 6161 // The per-thread Parker:: _mutex is a classic leaf-lock. | |
| 6162 // In particular a thread must never block on the Threads_lock while | |
| 6163 // holding the Parker:: mutex. If safepoints are pending both the | |
| 6164 // the ThreadBlockInVM() CTOR and DTOR may grab Threads_lock. | |
| 6165 ThreadBlockInVM tbivm(jt); | |
| 6166 | |
| 6167 // Don't wait if cannot get lock since interference arises from | |
| 6168 // unblocking. Also. check interrupt before trying wait | |
| 6169 if (Thread::is_interrupted(thread, false) || | |
| 6170 os::Solaris::mutex_trylock(_mutex) != 0) { | |
| 6171 return; | |
| 6172 } | |
| 6173 | |
| 6174 int status ; | |
| 6175 | |
| 6176 if (_counter > 0) { // no wait needed | |
| 6177 _counter = 0; | |
| 6178 status = os::Solaris::mutex_unlock(_mutex); | |
| 6179 assert (status == 0, "invariant") ; | |
|
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|
6180 // Paranoia to ensure our locked and lock-free paths interact |
|
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diff
changeset
|
6181 // correctly with each other and Java-level accesses. |
|
1117
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6822370: ReentrantReadWriteLock: threads hung when there are no threads holding onto the lock (Netra x4450)
dholmes
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diff
changeset
|
6182 OrderAccess::fence(); |
| 0 | 6183 return; |
| 6184 } | |
| 6185 | |
| 6186 #ifdef ASSERT | |
| 6187 // Don't catch signals while blocked; let the running threads have the signals. | |
| 6188 // (This allows a debugger to break into the running thread.) | |
| 6189 sigset_t oldsigs; | |
| 6190 sigset_t* allowdebug_blocked = os::Solaris::allowdebug_blocked_signals(); | |
| 6191 thr_sigsetmask(SIG_BLOCK, allowdebug_blocked, &oldsigs); | |
| 6192 #endif | |
| 6193 | |
| 6194 OSThreadWaitState osts(thread->osthread(), false /* not Object.wait() */); | |
| 6195 jt->set_suspend_equivalent(); | |
| 6196 // cleared by handle_special_suspend_equivalent_condition() or java_suspend_self() | |
| 6197 | |
| 6198 // Do this the hard way by blocking ... | |
| 6199 // See http://monaco.sfbay/detail.jsf?cr=5094058. | |
| 6200 // TODO-FIXME: for Solaris SPARC set fprs.FEF=0 prior to parking. | |
| 6201 // Only for SPARC >= V8PlusA | |
| 6202 #if defined(__sparc) && defined(COMPILER2) | |
| 6203 if (ClearFPUAtPark) { _mark_fpu_nosave() ; } | |
| 6204 #endif | |
| 6205 | |
| 6206 if (time == 0) { | |
| 6207 status = os::Solaris::cond_wait (_cond, _mutex) ; | |
| 6208 } else { | |
| 6209 status = os::Solaris::cond_timedwait (_cond, _mutex, &absTime); | |
| 6210 } | |
| 6211 // Note that an untimed cond_wait() can sometimes return ETIME on older | |
| 6212 // versions of the Solaris. | |
| 6213 assert_status(status == 0 || status == EINTR || | |
| 6214 status == ETIME || status == ETIMEDOUT, | |
| 6215 status, "cond_timedwait"); | |
| 6216 | |
| 6217 #ifdef ASSERT | |
| 6218 thr_sigsetmask(SIG_SETMASK, &oldsigs, NULL); | |
| 6219 #endif | |
| 6220 _counter = 0 ; | |
| 6221 status = os::Solaris::mutex_unlock(_mutex); | |
| 6222 assert_status(status == 0, status, "mutex_unlock") ; | |
|
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|
6223 // Paranoia to ensure our locked and lock-free paths interact |
|
22ba8c8ce6a6
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7456
diff
changeset
|
6224 // correctly with each other and Java-level accesses. |
|
22ba8c8ce6a6
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7456
diff
changeset
|
6225 OrderAccess::fence(); |
| 0 | 6226 |
| 6227 // If externally suspended while waiting, re-suspend | |
| 6228 if (jt->handle_special_suspend_equivalent_condition()) { | |
| 6229 jt->java_suspend_self(); | |
| 6230 } | |
| 6231 } | |
| 6232 | |
| 6233 void Parker::unpark() { | |
| 6234 int s, status ; | |
| 6235 status = os::Solaris::mutex_lock (_mutex) ; | |
| 6236 assert (status == 0, "invariant") ; | |
| 6237 s = _counter; | |
| 6238 _counter = 1; | |
| 6239 status = os::Solaris::mutex_unlock (_mutex) ; | |
| 6240 assert (status == 0, "invariant") ; | |
| 6241 | |
| 6242 if (s < 1) { | |
| 6243 status = os::Solaris::cond_signal (_cond) ; | |
| 6244 assert (status == 0, "invariant") ; | |
| 6245 } | |
| 6246 } | |
| 6247 | |
| 6248 extern char** environ; | |
| 6249 | |
| 6250 // Run the specified command in a separate process. Return its exit value, | |
| 6251 // or -1 on failure (e.g. can't fork a new process). | |
| 6252 // Unlike system(), this function can be called from signal handler. It | |
| 6253 // doesn't block SIGINT et al. | |
| 6254 int os::fork_and_exec(char* cmd) { | |
| 6255 char * argv[4]; | |
| 6256 argv[0] = (char *)"sh"; | |
| 6257 argv[1] = (char *)"-c"; | |
| 6258 argv[2] = cmd; | |
| 6259 argv[3] = NULL; | |
| 6260 | |
| 6261 // fork is async-safe, fork1 is not so can't use in signal handler | |
| 6262 pid_t pid; | |
| 6263 Thread* t = ThreadLocalStorage::get_thread_slow(); | |
| 6264 if (t != NULL && t->is_inside_signal_handler()) { | |
| 6265 pid = fork(); | |
| 6266 } else { | |
| 6267 pid = fork1(); | |
| 6268 } | |
| 6269 | |
| 6270 if (pid < 0) { | |
| 6271 // fork failed | |
| 6272 warning("fork failed: %s", strerror(errno)); | |
| 6273 return -1; | |
| 6274 | |
| 6275 } else if (pid == 0) { | |
| 6276 // child process | |
| 6277 | |
| 6278 // try to be consistent with system(), which uses "/usr/bin/sh" on Solaris | |
| 6279 execve("/usr/bin/sh", argv, environ); | |
| 6280 | |
| 6281 // execve failed | |
| 6282 _exit(-1); | |
| 6283 | |
| 6284 } else { | |
| 6285 // copied from J2SE ..._waitForProcessExit() in UNIXProcess_md.c; we don't | |
| 6286 // care about the actual exit code, for now. | |
| 6287 | |
| 6288 int status; | |
| 6289 | |
| 6290 // Wait for the child process to exit. This returns immediately if | |
| 6291 // the child has already exited. */ | |
| 6292 while (waitpid(pid, &status, 0) < 0) { | |
| 6293 switch (errno) { | |
| 6294 case ECHILD: return 0; | |
| 6295 case EINTR: break; | |
| 6296 default: return -1; | |
| 6297 } | |
| 6298 } | |
| 6299 | |
| 6300 if (WIFEXITED(status)) { | |
| 6301 // The child exited normally; get its exit code. | |
| 6302 return WEXITSTATUS(status); | |
| 6303 } else if (WIFSIGNALED(status)) { | |
| 6304 // The child exited because of a signal | |
| 6305 // The best value to return is 0x80 + signal number, | |
| 6306 // because that is what all Unix shells do, and because | |
| 6307 // it allows callers to distinguish between process exit and | |
| 6308 // process death by signal. | |
| 6309 return 0x80 + WTERMSIG(status); | |
| 6310 } else { | |
| 6311 // Unknown exit code; pass it through | |
| 6312 return status; | |
| 6313 } | |
| 6314 } | |
| 6315 } | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6316 |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6317 // is_headless_jre() |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6318 // |
|
4082
36b057451829
7110017: is_headless_jre should be updated to reflect the new location of awt toolkit libraries
dholmes
parents:
4006
diff
changeset
|
6319 // Test for the existence of xawt/libmawt.so or libawt_xawt.so |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6320 // in order to report if we are running in a headless jre |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6321 // |
|
4082
36b057451829
7110017: is_headless_jre should be updated to reflect the new location of awt toolkit libraries
dholmes
parents:
4006
diff
changeset
|
6322 // Since JDK8 xawt/libmawt.so was moved into the same directory |
|
36b057451829
7110017: is_headless_jre should be updated to reflect the new location of awt toolkit libraries
dholmes
parents:
4006
diff
changeset
|
6323 // as libawt.so, and renamed libawt_xawt.so |
|
36b057451829
7110017: is_headless_jre should be updated to reflect the new location of awt toolkit libraries
dholmes
parents:
4006
diff
changeset
|
6324 // |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6325 bool os::is_headless_jre() { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6326 struct stat statbuf; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6327 char buf[MAXPATHLEN]; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6328 char libmawtpath[MAXPATHLEN]; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6329 const char *xawtstr = "/xawt/libmawt.so"; |
|
4082
36b057451829
7110017: is_headless_jre should be updated to reflect the new location of awt toolkit libraries
dholmes
parents:
4006
diff
changeset
|
6330 const char *new_xawtstr = "/libawt_xawt.so"; |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6331 char *p; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6332 |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6333 // Get path to libjvm.so |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6334 os::jvm_path(buf, sizeof(buf)); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6335 |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6336 // Get rid of libjvm.so |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6337 p = strrchr(buf, '/'); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6338 if (p == NULL) return false; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6339 else *p = '\0'; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6340 |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6341 // Get rid of client or server |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6342 p = strrchr(buf, '/'); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6343 if (p == NULL) return false; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6344 else *p = '\0'; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6345 |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6346 // check xawt/libmawt.so |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6347 strcpy(libmawtpath, buf); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6348 strcat(libmawtpath, xawtstr); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6349 if (::stat(libmawtpath, &statbuf) == 0) return false; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
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1642
diff
changeset
|
6350 |
|
4082
36b057451829
7110017: is_headless_jre should be updated to reflect the new location of awt toolkit libraries
dholmes
parents:
4006
diff
changeset
|
6351 // check libawt_xawt.so |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6352 strcpy(libmawtpath, buf); |
|
4082
36b057451829
7110017: is_headless_jre should be updated to reflect the new location of awt toolkit libraries
dholmes
parents:
4006
diff
changeset
|
6353 strcat(libmawtpath, new_xawtstr); |
|
1681
126ea7725993
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bobv
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diff
changeset
|
6354 if (::stat(libmawtpath, &statbuf) == 0) return false; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
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diff
changeset
|
6355 |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6356 return true; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6357 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
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1642
diff
changeset
|
6358 |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6359 size_t os::write(int fd, const void *buf, unsigned int nBytes) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6360 INTERRUPTIBLE_RETURN_INT(::write(fd, buf, nBytes), os::Solaris::clear_interrupted); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6361 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6362 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6363 int os::close(int fd) { |
|
10978
e95fc50106cf
7178026: os::close can restart ::close but that is not a restartable syscall
rdurbin
parents:
10969
diff
changeset
|
6364 return ::close(fd); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6365 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6366 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6367 int os::socket_close(int fd) { |
|
10978
e95fc50106cf
7178026: os::close can restart ::close but that is not a restartable syscall
rdurbin
parents:
10969
diff
changeset
|
6368 return ::close(fd); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6369 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6370 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6371 int os::recv(int fd, char* buf, size_t nBytes, uint flags) { |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6372 INTERRUPTIBLE_RETURN_INT((int)::recv(fd, buf, nBytes, flags), os::Solaris::clear_interrupted); |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6373 } |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6374 |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6375 int os::send(int fd, char* buf, size_t nBytes, uint flags) { |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6376 INTERRUPTIBLE_RETURN_INT((int)::send(fd, buf, nBytes, flags), os::Solaris::clear_interrupted); |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6377 } |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6378 |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6379 int os::raw_send(int fd, char* buf, size_t nBytes, uint flags) { |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6380 RESTARTABLE_RETURN_INT((int)::send(fd, buf, nBytes, flags)); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6381 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6382 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6383 // As both poll and select can be interrupted by signals, we have to be |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6384 // prepared to restart the system call after updating the timeout, unless |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6385 // a poll() is done with timeout == -1, in which case we repeat with this |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6386 // "wait forever" value. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6387 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6388 int os::timeout(int fd, long timeout) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6389 int res; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6390 struct timeval t; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6391 julong prevtime, newtime; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6392 static const char* aNull = 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6393 struct pollfd pfd; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6394 pfd.fd = fd; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6395 pfd.events = POLLIN; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6396 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6397 gettimeofday(&t, &aNull); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6398 prevtime = ((julong)t.tv_sec * 1000) + t.tv_usec / 1000; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6399 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6400 for(;;) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6401 INTERRUPTIBLE_NORESTART(::poll(&pfd, 1, timeout), res, os::Solaris::clear_interrupted); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6402 if(res == OS_ERR && errno == EINTR) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6403 if(timeout != -1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6404 gettimeofday(&t, &aNull); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6405 newtime = ((julong)t.tv_sec * 1000) + t.tv_usec /1000; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6406 timeout -= newtime - prevtime; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6407 if(timeout <= 0) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6408 return OS_OK; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6409 prevtime = newtime; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6410 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6411 } else return res; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6412 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6413 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6414 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6415 int os::connect(int fd, struct sockaddr *him, socklen_t len) { |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6416 int _result; |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6417 INTERRUPTIBLE_NORESTART(::connect(fd, him, len), _result,\ |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6418 os::Solaris::clear_interrupted); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6419 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6420 // Depending on when thread interruption is reset, _result could be |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6421 // one of two values when errno == EINTR |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6422 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6423 if (((_result == OS_INTRPT) || (_result == OS_ERR)) |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6424 && (errno == EINTR)) { |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6425 /* restarting a connect() changes its errno semantics */ |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6426 INTERRUPTIBLE(::connect(fd, him, len), _result,\ |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6427 os::Solaris::clear_interrupted); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6428 /* undo these changes */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6429 if (_result == OS_ERR) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6430 if (errno == EALREADY) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6431 errno = EINPROGRESS; /* fall through */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6432 } else if (errno == EISCONN) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6433 errno = 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6434 return OS_OK; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6435 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6436 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6437 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6438 return _result; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6439 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6440 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6441 int os::accept(int fd, struct sockaddr* him, socklen_t* len) { |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6442 if (fd < 0) { |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6443 return OS_ERR; |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6444 } |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6445 INTERRUPTIBLE_RETURN_INT((int)::accept(fd, him, len),\ |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6446 os::Solaris::clear_interrupted); |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6447 } |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6448 |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6449 int os::recvfrom(int fd, char* buf, size_t nBytes, uint flags, |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6450 sockaddr* from, socklen_t* fromlen) { |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6451 INTERRUPTIBLE_RETURN_INT((int)::recvfrom(fd, buf, nBytes, flags, from, fromlen),\ |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6452 os::Solaris::clear_interrupted); |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6453 } |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6454 |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6455 int os::sendto(int fd, char* buf, size_t len, uint flags, |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6456 struct sockaddr* to, socklen_t tolen) { |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6457 INTERRUPTIBLE_RETURN_INT((int)::sendto(fd, buf, len, flags, to, tolen),\ |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6458 os::Solaris::clear_interrupted); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6459 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6460 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6461 int os::socket_available(int fd, jint *pbytes) { |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6462 if (fd < 0) { |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6463 return OS_OK; |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6464 } |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6465 int ret; |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6466 RESTARTABLE(::ioctl(fd, FIONREAD, pbytes), ret); |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6467 // note: ioctl can return 0 when successful, JVM_SocketAvailable |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6468 // is expected to return 0 on failure and 1 on success to the jdk. |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6469 return (ret == OS_ERR) ? 0 : 1; |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6470 } |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6471 |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6472 int os::bind(int fd, struct sockaddr* him, socklen_t len) { |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6473 INTERRUPTIBLE_RETURN_INT_NORESTART(::bind(fd, him, len),\ |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6474 os::Solaris::clear_interrupted); |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6475 } |
|
6200
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6476 |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6477 // Get the default path to the core file |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6478 // Returns the length of the string |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6479 int os::get_core_path(char* buffer, size_t bufferSize) { |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6480 const char* p = get_current_directory(buffer, bufferSize); |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6481 |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6482 if (p == NULL) { |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6483 assert(p != NULL, "failed to get current directory"); |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6484 return 0; |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6485 } |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6486 |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6487 return strlen(buffer); |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6488 } |
|
12110
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
11112
diff
changeset
|
6489 |
|
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
11112
diff
changeset
|
6490 #ifndef PRODUCT |
|
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
11112
diff
changeset
|
6491 void TestReserveMemorySpecial_test() { |
|
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
11112
diff
changeset
|
6492 // No tests available for this platform |
|
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6493 } |
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6494 #endif |