Mercurial > hg > truffle
annotate src/os/solaris/vm/os_solaris.cpp @ 14475:6c9332549827
6546236: Thread interrupt() of Thread.sleep() can be lost on Solaris due to race with signal handler
Reviewed-by: dholmes, dcubed
| author | fparain |
|---|---|
| date | Wed, 19 Feb 2014 16:22:15 +0000 |
| parents | 2c2a99f6cf83 |
| children | bb9356ec5967 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 14328 | 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 JavaThread* os::Solaris::setup_interruptible() { | |
| 336 JavaThread* thread = (JavaThread*)ThreadLocalStorage::thread(); | |
| 337 setup_interruptible(thread); | |
| 338 return thread; | |
| 339 } | |
| 340 | |
| 341 void os::Solaris::try_enable_extended_io() { | |
| 342 typedef int (*enable_extended_FILE_stdio_t)(int, int); | |
| 343 | |
| 344 if (!UseExtendedFileIO) { | |
| 345 return; | |
| 346 } | |
| 347 | |
| 348 enable_extended_FILE_stdio_t enabler = | |
| 349 (enable_extended_FILE_stdio_t) dlsym(RTLD_DEFAULT, | |
| 350 "enable_extended_FILE_stdio"); | |
| 351 if (enabler) { | |
| 352 enabler(-1, -1); | |
| 353 } | |
| 354 } | |
| 355 | |
| 356 | |
| 357 #ifdef ASSERT | |
| 358 | |
| 359 JavaThread* os::Solaris::setup_interruptible_native() { | |
| 360 JavaThread* thread = (JavaThread*)ThreadLocalStorage::thread(); | |
| 361 JavaThreadState thread_state = thread->thread_state(); | |
| 362 assert(thread_state == _thread_in_native, "Assumed thread_in_native"); | |
| 363 return thread; | |
| 364 } | |
| 365 | |
| 366 void os::Solaris::cleanup_interruptible_native(JavaThread* thread) { | |
| 367 JavaThreadState thread_state = thread->thread_state(); | |
| 368 assert(thread_state == _thread_in_native, "Assumed thread_in_native"); | |
| 369 } | |
| 370 #endif | |
| 371 | |
| 372 // cleanup_interruptible reverses the effects of setup_interruptible | |
| 373 // setup_interruptible_already_blocked() does not need any cleanup. | |
| 374 | |
| 375 void os::Solaris::cleanup_interruptible(JavaThread* thread) { | |
| 376 OSThread* osthread = thread->osthread(); | |
| 377 | |
| 378 ThreadStateTransition::transition(thread, _thread_blocked, osthread->saved_interrupt_thread_state()); | |
| 379 } | |
| 380 | |
| 381 // I/O interruption related counters called in _INTERRUPTIBLE | |
| 382 | |
| 383 void os::Solaris::bump_interrupted_before_count() { | |
| 384 RuntimeService::record_interrupted_before_count(); | |
| 385 } | |
| 386 | |
| 387 void os::Solaris::bump_interrupted_during_count() { | |
| 388 RuntimeService::record_interrupted_during_count(); | |
| 389 } | |
| 390 | |
| 391 static int _processors_online = 0; | |
| 392 | |
| 393 jint os::Solaris::_os_thread_limit = 0; | |
| 394 volatile jint os::Solaris::_os_thread_count = 0; | |
| 395 | |
| 396 julong os::available_memory() { | |
| 397 return Solaris::available_memory(); | |
| 398 } | |
| 399 | |
| 400 julong os::Solaris::available_memory() { | |
| 401 return (julong)sysconf(_SC_AVPHYS_PAGES) * os::vm_page_size(); | |
| 402 } | |
| 403 | |
| 404 julong os::Solaris::_physical_memory = 0; | |
| 405 | |
| 406 julong os::physical_memory() { | |
| 407 return Solaris::physical_memory(); | |
| 408 } | |
| 409 | |
| 410 static hrtime_t first_hrtime = 0; | |
| 411 static const hrtime_t hrtime_hz = 1000*1000*1000; | |
| 412 const int LOCK_BUSY = 1; | |
| 413 const int LOCK_FREE = 0; | |
| 414 const int LOCK_INVALID = -1; | |
| 415 static volatile hrtime_t max_hrtime = 0; | |
| 416 static volatile int max_hrtime_lock = LOCK_FREE; // Update counter with LSB as lock-in-progress | |
| 417 | |
| 418 | |
| 419 void os::Solaris::initialize_system_info() { | |
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420 set_processor_count(sysconf(_SC_NPROCESSORS_CONF)); |
| 0 | 421 _processors_online = sysconf (_SC_NPROCESSORS_ONLN); |
| 422 _physical_memory = (julong)sysconf(_SC_PHYS_PAGES) * (julong)sysconf(_SC_PAGESIZE); | |
| 423 } | |
| 424 | |
| 425 int os::active_processor_count() { | |
| 426 int online_cpus = sysconf(_SC_NPROCESSORS_ONLN); | |
| 427 pid_t pid = getpid(); | |
| 428 psetid_t pset = PS_NONE; | |
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429 // Are we running in a processor set or is there any processor set around? |
| 0 | 430 if (pset_bind(PS_QUERY, P_PID, pid, &pset) == 0) { |
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431 uint_t pset_cpus; |
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432 // Query the number of cpus available to us. |
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433 if (pset_info(pset, NULL, &pset_cpus, NULL) == 0) { |
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434 assert(pset_cpus > 0 && pset_cpus <= online_cpus, "sanity check"); |
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435 _processors_online = pset_cpus; |
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436 return pset_cpus; |
| 0 | 437 } |
| 438 } | |
| 439 // Otherwise return number of online cpus | |
| 440 return online_cpus; | |
| 441 } | |
| 442 | |
| 443 static bool find_processors_in_pset(psetid_t pset, | |
| 444 processorid_t** id_array, | |
| 445 uint_t* id_length) { | |
| 446 bool result = false; | |
| 447 // Find the number of processors in the processor set. | |
| 448 if (pset_info(pset, NULL, id_length, NULL) == 0) { | |
| 449 // Make up an array to hold their ids. | |
| 6197 | 450 *id_array = NEW_C_HEAP_ARRAY(processorid_t, *id_length, mtInternal); |
| 0 | 451 // Fill in the array with their processor ids. |
| 452 if (pset_info(pset, NULL, id_length, *id_array) == 0) { | |
| 453 result = true; | |
| 454 } | |
| 455 } | |
| 456 return result; | |
| 457 } | |
| 458 | |
| 459 // Callers of find_processors_online() must tolerate imprecise results -- | |
| 460 // the system configuration can change asynchronously because of DR | |
| 461 // or explicit psradm operations. | |
| 462 // | |
| 463 // We also need to take care that the loop (below) terminates as the | |
| 464 // number of processors online can change between the _SC_NPROCESSORS_ONLN | |
| 465 // request and the loop that builds the list of processor ids. Unfortunately | |
| 466 // there's no reliable way to determine the maximum valid processor id, | |
| 467 // so we use a manifest constant, MAX_PROCESSOR_ID, instead. See p_online | |
| 468 // man pages, which claim the processor id set is "sparse, but | |
| 469 // not too sparse". MAX_PROCESSOR_ID is used to ensure that we eventually | |
| 470 // exit the loop. | |
| 471 // | |
| 472 // In the future we'll be able to use sysconf(_SC_CPUID_MAX), but that's | |
| 473 // not available on S8.0. | |
| 474 | |
| 475 static bool find_processors_online(processorid_t** id_array, | |
| 476 uint* id_length) { | |
| 477 const processorid_t MAX_PROCESSOR_ID = 100000 ; | |
| 478 // Find the number of processors online. | |
| 479 *id_length = sysconf(_SC_NPROCESSORS_ONLN); | |
| 480 // Make up an array to hold their ids. | |
| 6197 | 481 *id_array = NEW_C_HEAP_ARRAY(processorid_t, *id_length, mtInternal); |
| 0 | 482 // Processors need not be numbered consecutively. |
| 483 long found = 0; | |
| 484 processorid_t next = 0; | |
| 485 while (found < *id_length && next < MAX_PROCESSOR_ID) { | |
| 486 processor_info_t info; | |
| 487 if (processor_info(next, &info) == 0) { | |
| 488 // NB, PI_NOINTR processors are effectively online ... | |
| 489 if (info.pi_state == P_ONLINE || info.pi_state == P_NOINTR) { | |
| 490 (*id_array)[found] = next; | |
| 491 found += 1; | |
| 492 } | |
| 493 } | |
| 494 next += 1; | |
| 495 } | |
| 496 if (found < *id_length) { | |
| 497 // The loop above didn't identify the expected number of processors. | |
| 498 // We could always retry the operation, calling sysconf(_SC_NPROCESSORS_ONLN) | |
| 499 // and re-running the loop, above, but there's no guarantee of progress | |
| 500 // if the system configuration is in flux. Instead, we just return what | |
| 501 // we've got. Note that in the worst case find_processors_online() could | |
| 502 // return an empty set. (As a fall-back in the case of the empty set we | |
| 503 // could just return the ID of the current processor). | |
| 504 *id_length = found ; | |
| 505 } | |
| 506 | |
| 507 return true; | |
| 508 } | |
| 509 | |
| 510 static bool assign_distribution(processorid_t* id_array, | |
| 511 uint id_length, | |
| 512 uint* distribution, | |
| 513 uint distribution_length) { | |
| 514 // We assume we can assign processorid_t's to uint's. | |
| 515 assert(sizeof(processorid_t) == sizeof(uint), | |
| 516 "can't convert processorid_t to uint"); | |
| 517 // Quick check to see if we won't succeed. | |
| 518 if (id_length < distribution_length) { | |
| 519 return false; | |
| 520 } | |
| 521 // Assign processor ids to the distribution. | |
| 522 // Try to shuffle processors to distribute work across boards, | |
| 523 // assuming 4 processors per board. | |
| 524 const uint processors_per_board = ProcessDistributionStride; | |
| 525 // Find the maximum processor id. | |
| 526 processorid_t max_id = 0; | |
| 527 for (uint m = 0; m < id_length; m += 1) { | |
| 528 max_id = MAX2(max_id, id_array[m]); | |
| 529 } | |
| 530 // The next id, to limit loops. | |
| 531 const processorid_t limit_id = max_id + 1; | |
| 532 // Make up markers for available processors. | |
| 6197 | 533 bool* available_id = NEW_C_HEAP_ARRAY(bool, limit_id, mtInternal); |
| 0 | 534 for (uint c = 0; c < limit_id; c += 1) { |
| 535 available_id[c] = false; | |
| 536 } | |
| 537 for (uint a = 0; a < id_length; a += 1) { | |
| 538 available_id[id_array[a]] = true; | |
| 539 } | |
| 540 // Step by "boards", then by "slot", copying to "assigned". | |
| 541 // NEEDS_CLEANUP: The assignment of processors should be stateful, | |
| 542 // remembering which processors have been assigned by | |
| 543 // previous calls, etc., so as to distribute several | |
| 544 // independent calls of this method. What we'd like is | |
| 545 // It would be nice to have an API that let us ask | |
| 546 // how many processes are bound to a processor, | |
| 547 // but we don't have that, either. | |
| 548 // In the short term, "board" is static so that | |
| 549 // subsequent distributions don't all start at board 0. | |
| 550 static uint board = 0; | |
| 551 uint assigned = 0; | |
| 552 // Until we've found enough processors .... | |
| 553 while (assigned < distribution_length) { | |
| 554 // ... find the next available processor in the board. | |
| 555 for (uint slot = 0; slot < processors_per_board; slot += 1) { | |
| 556 uint try_id = board * processors_per_board + slot; | |
| 557 if ((try_id < limit_id) && (available_id[try_id] == true)) { | |
| 558 distribution[assigned] = try_id; | |
| 559 available_id[try_id] = false; | |
| 560 assigned += 1; | |
| 561 break; | |
| 562 } | |
| 563 } | |
| 564 board += 1; | |
| 565 if (board * processors_per_board + 0 >= limit_id) { | |
| 566 board = 0; | |
| 567 } | |
| 568 } | |
| 569 if (available_id != NULL) { | |
| 6197 | 570 FREE_C_HEAP_ARRAY(bool, available_id, mtInternal); |
| 0 | 571 } |
| 572 return true; | |
| 573 } | |
| 574 | |
| 4006 | 575 void os::set_native_thread_name(const char *name) { |
| 576 // Not yet implemented. | |
| 577 return; | |
| 578 } | |
| 579 | |
| 0 | 580 bool os::distribute_processes(uint length, uint* distribution) { |
| 581 bool result = false; | |
| 582 // Find the processor id's of all the available CPUs. | |
| 583 processorid_t* id_array = NULL; | |
| 584 uint id_length = 0; | |
| 585 // There are some races between querying information and using it, | |
| 586 // since processor sets can change dynamically. | |
| 587 psetid_t pset = PS_NONE; | |
| 588 // Are we running in a processor set? | |
| 589 if ((pset_bind(PS_QUERY, P_PID, P_MYID, &pset) == 0) && pset != PS_NONE) { | |
| 590 result = find_processors_in_pset(pset, &id_array, &id_length); | |
| 591 } else { | |
| 592 result = find_processors_online(&id_array, &id_length); | |
| 593 } | |
| 594 if (result == true) { | |
| 595 if (id_length >= length) { | |
| 596 result = assign_distribution(id_array, id_length, distribution, length); | |
| 597 } else { | |
| 598 result = false; | |
| 599 } | |
| 600 } | |
| 601 if (id_array != NULL) { | |
| 6197 | 602 FREE_C_HEAP_ARRAY(processorid_t, id_array, mtInternal); |
| 0 | 603 } |
| 604 return result; | |
| 605 } | |
| 606 | |
| 607 bool os::bind_to_processor(uint processor_id) { | |
| 608 // We assume that a processorid_t can be stored in a uint. | |
| 609 assert(sizeof(uint) == sizeof(processorid_t), | |
| 610 "can't convert uint to processorid_t"); | |
| 611 int bind_result = | |
| 612 processor_bind(P_LWPID, // bind LWP. | |
| 613 P_MYID, // bind current LWP. | |
| 614 (processorid_t) processor_id, // id. | |
| 615 NULL); // don't return old binding. | |
| 616 return (bind_result == 0); | |
| 617 } | |
| 618 | |
| 619 bool os::getenv(const char* name, char* buffer, int len) { | |
| 620 char* val = ::getenv( name ); | |
| 621 if ( val == NULL | |
| 622 || strlen(val) + 1 > len ) { | |
| 623 if (len > 0) buffer[0] = 0; // return a null string | |
| 624 return false; | |
| 625 } | |
| 626 strcpy( buffer, val ); | |
| 627 return true; | |
| 628 } | |
| 629 | |
| 630 | |
| 631 // Return true if user is running as root. | |
| 632 | |
| 633 bool os::have_special_privileges() { | |
| 634 static bool init = false; | |
| 635 static bool privileges = false; | |
| 636 if (!init) { | |
| 637 privileges = (getuid() != geteuid()) || (getgid() != getegid()); | |
| 638 init = true; | |
| 639 } | |
| 640 return privileges; | |
| 641 } | |
| 642 | |
| 643 | |
| 644 void os::init_system_properties_values() { | |
| 645 char arch[12]; | |
| 646 sysinfo(SI_ARCHITECTURE, arch, sizeof(arch)); | |
| 647 | |
| 648 // The next steps are taken in the product version: | |
| 649 // | |
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650 // Obtain the JAVA_HOME value from the location of libjvm.so. |
| 0 | 651 // This library should be located at: |
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652 // <JAVA_HOME>/jre/lib/<arch>/{client|server}/libjvm.so. |
| 0 | 653 // |
| 654 // If "/jre/lib/" appears at the right place in the path, then we | |
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655 // assume libjvm.so is installed in a JDK and we use this path. |
| 0 | 656 // |
| 657 // Otherwise exit with message: "Could not create the Java virtual machine." | |
| 658 // | |
| 659 // The following extra steps are taken in the debugging version: | |
| 660 // | |
| 661 // If "/jre/lib/" does NOT appear at the right place in the path | |
| 662 // instead of exit check for $JAVA_HOME environment variable. | |
| 663 // | |
| 664 // If it is defined and we are able to locate $JAVA_HOME/jre/lib/<arch>, | |
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665 // then we append a fake suffix "hotspot/libjvm.so" to this path so |
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666 // it looks like libjvm.so is installed there |
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667 // <JAVA_HOME>/jre/lib/<arch>/hotspot/libjvm.so. |
| 0 | 668 // |
| 669 // Otherwise exit. | |
| 670 // | |
| 671 // Important note: if the location of libjvm.so changes this | |
| 672 // code needs to be changed accordingly. | |
| 673 | |
| 674 // The next few definitions allow the code to be verbatim: | |
| 6197 | 675 #define malloc(n) (char*)NEW_C_HEAP_ARRAY(char, (n), mtInternal) |
| 676 #define free(p) FREE_C_HEAP_ARRAY(char, p, mtInternal) | |
| 0 | 677 #define getenv(n) ::getenv(n) |
| 678 | |
| 679 #define EXTENSIONS_DIR "/lib/ext" | |
| 680 #define ENDORSED_DIR "/lib/endorsed" | |
| 681 #define COMMON_DIR "/usr/jdk/packages" | |
| 682 | |
| 683 { | |
| 684 /* sysclasspath, java_home, dll_dir */ | |
| 685 { | |
| 686 char *home_path; | |
| 687 char *dll_path; | |
| 688 char *pslash; | |
| 689 char buf[MAXPATHLEN]; | |
| 690 os::jvm_path(buf, sizeof(buf)); | |
| 691 | |
| 692 // Found the full path to libjvm.so. | |
| 693 // Now cut the path to <java_home>/jre if we can. | |
| 694 *(strrchr(buf, '/')) = '\0'; /* get rid of /libjvm.so */ | |
| 695 pslash = strrchr(buf, '/'); | |
| 696 if (pslash != NULL) | |
| 697 *pslash = '\0'; /* get rid of /{client|server|hotspot} */ | |
| 698 dll_path = malloc(strlen(buf) + 1); | |
| 699 if (dll_path == NULL) | |
| 700 return; | |
| 701 strcpy(dll_path, buf); | |
| 702 Arguments::set_dll_dir(dll_path); | |
| 703 | |
| 704 if (pslash != NULL) { | |
| 705 pslash = strrchr(buf, '/'); | |
| 706 if (pslash != NULL) { | |
| 707 *pslash = '\0'; /* get rid of /<arch> */ | |
| 708 pslash = strrchr(buf, '/'); | |
| 709 if (pslash != NULL) | |
| 710 *pslash = '\0'; /* get rid of /lib */ | |
| 711 } | |
| 712 } | |
| 713 | |
| 714 home_path = malloc(strlen(buf) + 1); | |
| 715 if (home_path == NULL) | |
| 716 return; | |
| 717 strcpy(home_path, buf); | |
| 718 Arguments::set_java_home(home_path); | |
| 719 | |
| 720 if (!set_boot_path('/', ':')) | |
| 721 return; | |
| 722 } | |
| 723 | |
| 724 /* | |
| 725 * Where to look for native libraries | |
| 726 */ | |
| 727 { | |
| 728 // Use dlinfo() to determine the correct java.library.path. | |
| 729 // | |
| 730 // If we're launched by the Java launcher, and the user | |
| 731 // does not set java.library.path explicitly on the commandline, | |
| 732 // the Java launcher sets LD_LIBRARY_PATH for us and unsets | |
| 733 // LD_LIBRARY_PATH_32 and LD_LIBRARY_PATH_64. In this case | |
| 734 // dlinfo returns LD_LIBRARY_PATH + crle settings (including | |
| 735 // /usr/lib), which is exactly what we want. | |
| 736 // | |
| 737 // If the user does set java.library.path, it completely | |
| 738 // overwrites this setting, and always has. | |
| 739 // | |
| 740 // If we're not launched by the Java launcher, we may | |
| 741 // get here with any/all of the LD_LIBRARY_PATH[_32|64] | |
| 742 // settings. Again, dlinfo does exactly what we want. | |
| 743 | |
| 744 Dl_serinfo _info, *info = &_info; | |
| 745 Dl_serpath *path; | |
| 746 char* library_path; | |
| 747 char *common_path; | |
| 748 int i; | |
| 749 | |
| 750 // determine search path count and required buffer size | |
| 751 if (dlinfo(RTLD_SELF, RTLD_DI_SERINFOSIZE, (void *)info) == -1) { | |
| 752 vm_exit_during_initialization("dlinfo SERINFOSIZE request", dlerror()); | |
| 753 } | |
| 754 | |
| 755 // allocate new buffer and initialize | |
| 756 info = (Dl_serinfo*)malloc(_info.dls_size); | |
| 757 if (info == NULL) { | |
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758 vm_exit_out_of_memory(_info.dls_size, OOM_MALLOC_ERROR, |
| 0 | 759 "init_system_properties_values info"); |
| 760 } | |
| 761 info->dls_size = _info.dls_size; | |
| 762 info->dls_cnt = _info.dls_cnt; | |
| 763 | |
| 764 // obtain search path information | |
| 765 if (dlinfo(RTLD_SELF, RTLD_DI_SERINFO, (void *)info) == -1) { | |
| 766 free(info); | |
| 767 vm_exit_during_initialization("dlinfo SERINFO request", dlerror()); | |
| 768 } | |
| 769 | |
| 770 path = &info->dls_serpath[0]; | |
| 771 | |
| 772 // Note: Due to a legacy implementation, most of the library path | |
| 773 // is set in the launcher. This was to accomodate linking restrictions | |
| 774 // on legacy Solaris implementations (which are no longer supported). | |
| 775 // Eventually, all the library path setting will be done here. | |
| 776 // | |
| 777 // However, to prevent the proliferation of improperly built native | |
| 778 // libraries, the new path component /usr/jdk/packages is added here. | |
| 779 | |
| 780 // Determine the actual CPU architecture. | |
| 781 char cpu_arch[12]; | |
| 782 sysinfo(SI_ARCHITECTURE, cpu_arch, sizeof(cpu_arch)); | |
| 783 #ifdef _LP64 | |
| 784 // If we are a 64-bit vm, perform the following translations: | |
| 785 // sparc -> sparcv9 | |
| 786 // i386 -> amd64 | |
| 787 if (strcmp(cpu_arch, "sparc") == 0) | |
| 788 strcat(cpu_arch, "v9"); | |
| 789 else if (strcmp(cpu_arch, "i386") == 0) | |
| 790 strcpy(cpu_arch, "amd64"); | |
| 791 #endif | |
| 792 | |
| 793 // Construct the invariant part of ld_library_path. Note that the | |
| 794 // space for the colon and the trailing null are provided by the | |
| 795 // nulls included by the sizeof operator. | |
| 796 size_t bufsize = sizeof(COMMON_DIR) + sizeof("/lib/") + strlen(cpu_arch); | |
| 797 common_path = malloc(bufsize); | |
| 798 if (common_path == NULL) { | |
| 799 free(info); | |
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800 vm_exit_out_of_memory(bufsize, OOM_MALLOC_ERROR, |
| 0 | 801 "init_system_properties_values common_path"); |
| 802 } | |
| 803 sprintf(common_path, COMMON_DIR "/lib/%s", cpu_arch); | |
| 804 | |
| 805 // struct size is more than sufficient for the path components obtained | |
| 806 // through the dlinfo() call, so only add additional space for the path | |
| 807 // components explicitly added here. | |
| 808 bufsize = info->dls_size + strlen(common_path); | |
| 809 library_path = malloc(bufsize); | |
| 810 if (library_path == NULL) { | |
| 811 free(info); | |
| 812 free(common_path); | |
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813 vm_exit_out_of_memory(bufsize, OOM_MALLOC_ERROR, |
| 0 | 814 "init_system_properties_values library_path"); |
| 815 } | |
| 816 library_path[0] = '\0'; | |
| 817 | |
| 818 // Construct the desired Java library path from the linker's library | |
| 819 // search path. | |
| 820 // | |
| 821 // For compatibility, it is optimal that we insert the additional path | |
| 822 // components specific to the Java VM after those components specified | |
| 823 // in LD_LIBRARY_PATH (if any) but before those added by the ld.so | |
| 824 // infrastructure. | |
| 825 if (info->dls_cnt == 0) { // Not sure this can happen, but allow for it | |
| 826 strcpy(library_path, common_path); | |
| 827 } else { | |
| 828 int inserted = 0; | |
| 829 for (i = 0; i < info->dls_cnt; i++, path++) { | |
| 830 uint_t flags = path->dls_flags & LA_SER_MASK; | |
| 831 if (((flags & LA_SER_LIBPATH) == 0) && !inserted) { | |
| 832 strcat(library_path, common_path); | |
| 833 strcat(library_path, os::path_separator()); | |
| 834 inserted = 1; | |
| 835 } | |
| 836 strcat(library_path, path->dls_name); | |
| 837 strcat(library_path, os::path_separator()); | |
| 838 } | |
| 839 // eliminate trailing path separator | |
| 840 library_path[strlen(library_path)-1] = '\0'; | |
| 841 } | |
| 842 | |
| 843 // happens before argument parsing - can't use a trace flag | |
| 844 // tty->print_raw("init_system_properties_values: native lib path: "); | |
| 845 // tty->print_raw_cr(library_path); | |
| 846 | |
| 847 // callee copies into its own buffer | |
| 848 Arguments::set_library_path(library_path); | |
| 849 | |
| 850 free(common_path); | |
| 851 free(library_path); | |
| 852 free(info); | |
| 853 } | |
| 854 | |
| 855 /* | |
| 856 * Extensions directories. | |
| 857 * | |
| 858 * Note that the space for the colon and the trailing null are provided | |
| 859 * by the nulls included by the sizeof operator (so actually one byte more | |
| 860 * than necessary is allocated). | |
| 861 */ | |
| 862 { | |
| 863 char *buf = (char *) malloc(strlen(Arguments::get_java_home()) + | |
| 864 sizeof(EXTENSIONS_DIR) + sizeof(COMMON_DIR) + | |
| 865 sizeof(EXTENSIONS_DIR)); | |
| 866 sprintf(buf, "%s" EXTENSIONS_DIR ":" COMMON_DIR EXTENSIONS_DIR, | |
| 867 Arguments::get_java_home()); | |
| 868 Arguments::set_ext_dirs(buf); | |
| 869 } | |
| 870 | |
| 871 /* Endorsed standards default directory. */ | |
| 872 { | |
| 873 char * buf = malloc(strlen(Arguments::get_java_home()) + sizeof(ENDORSED_DIR)); | |
| 874 sprintf(buf, "%s" ENDORSED_DIR, Arguments::get_java_home()); | |
| 875 Arguments::set_endorsed_dirs(buf); | |
| 876 } | |
| 877 } | |
| 878 | |
| 879 #undef malloc | |
| 880 #undef free | |
| 881 #undef getenv | |
| 882 #undef EXTENSIONS_DIR | |
| 883 #undef ENDORSED_DIR | |
| 884 #undef COMMON_DIR | |
| 885 | |
| 886 } | |
| 887 | |
| 888 void os::breakpoint() { | |
| 889 BREAKPOINT; | |
| 890 } | |
| 891 | |
| 892 bool os::obsolete_option(const JavaVMOption *option) | |
| 893 { | |
| 894 if (!strncmp(option->optionString, "-Xt", 3)) { | |
| 895 return true; | |
| 896 } else if (!strncmp(option->optionString, "-Xtm", 4)) { | |
| 897 return true; | |
| 898 } else if (!strncmp(option->optionString, "-Xverifyheap", 12)) { | |
| 899 return true; | |
| 900 } else if (!strncmp(option->optionString, "-Xmaxjitcodesize", 16)) { | |
| 901 return true; | |
| 902 } | |
| 903 return false; | |
| 904 } | |
| 905 | |
| 906 bool os::Solaris::valid_stack_address(Thread* thread, address sp) { | |
| 907 address stackStart = (address)thread->stack_base(); | |
| 908 address stackEnd = (address)(stackStart - (address)thread->stack_size()); | |
| 909 if (sp < stackStart && sp >= stackEnd ) return true; | |
| 910 return false; | |
| 911 } | |
| 912 | |
| 913 extern "C" void breakpoint() { | |
| 914 // use debugger to set breakpoint here | |
| 915 } | |
| 916 | |
| 917 static thread_t main_thread; | |
| 918 | |
| 919 // Thread start routine for all new Java threads | |
| 920 extern "C" void* java_start(void* thread_addr) { | |
| 921 // Try to randomize the cache line index of hot stack frames. | |
| 922 // This helps when threads of the same stack traces evict each other's | |
| 923 // cache lines. The threads can be either from the same JVM instance, or | |
| 924 // from different JVM instances. The benefit is especially true for | |
| 925 // processors with hyperthreading technology. | |
| 926 static int counter = 0; | |
| 927 int pid = os::current_process_id(); | |
| 928 alloca(((pid ^ counter++) & 7) * 128); | |
| 929 | |
| 930 int prio; | |
| 931 Thread* thread = (Thread*)thread_addr; | |
| 932 OSThread* osthr = thread->osthread(); | |
| 933 | |
| 934 osthr->set_lwp_id( _lwp_self() ); // Store lwp in case we are bound | |
| 935 thread->_schedctl = (void *) schedctl_init () ; | |
| 936 | |
| 937 if (UseNUMA) { | |
| 938 int lgrp_id = os::numa_get_group_id(); | |
| 939 if (lgrp_id != -1) { | |
| 940 thread->set_lgrp_id(lgrp_id); | |
| 941 } | |
| 942 } | |
| 943 | |
| 944 // If the creator called set priority before we started, | |
|
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945 // we need to call set_native_priority now that we have an lwp. |
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946 // We used to get the priority from thr_getprio (we called |
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947 // thr_setprio way back in create_thread) and pass it to |
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948 // set_native_priority, but Solaris scales the priority |
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949 // in java_to_os_priority, so when we read it back here, |
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950 // we pass trash to set_native_priority instead of what's |
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951 // in java_to_os_priority. So we save the native priority |
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952 // in the osThread and recall it here. |
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953 |
| 0 | 954 if ( osthr->thread_id() != -1 ) { |
| 955 if ( UseThreadPriorities ) { | |
|
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956 int prio = osthr->native_priority(); |
| 0 | 957 if (ThreadPriorityVerbose) { |
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958 tty->print_cr("Starting Thread " INTPTR_FORMAT ", LWP is " |
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959 INTPTR_FORMAT ", setting priority: %d\n", |
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960 osthr->thread_id(), osthr->lwp_id(), prio); |
| 0 | 961 } |
| 962 os::set_native_priority(thread, prio); | |
| 963 } | |
| 964 } else if (ThreadPriorityVerbose) { | |
| 965 warning("Can't set priority in _start routine, thread id hasn't been set\n"); | |
| 966 } | |
| 967 | |
| 968 assert(osthr->get_state() == RUNNABLE, "invalid os thread state"); | |
| 969 | |
| 970 // initialize signal mask for this thread | |
| 971 os::Solaris::hotspot_sigmask(thread); | |
| 972 | |
| 973 thread->run(); | |
| 974 | |
| 975 // One less thread is executing | |
| 976 // When the VMThread gets here, the main thread may have already exited | |
| 977 // which frees the CodeHeap containing the Atomic::dec code | |
| 978 if (thread != VMThread::vm_thread() && VMThread::vm_thread() != NULL) { | |
| 979 Atomic::dec(&os::Solaris::_os_thread_count); | |
| 980 } | |
| 981 | |
| 982 if (UseDetachedThreads) { | |
| 983 thr_exit(NULL); | |
| 984 ShouldNotReachHere(); | |
| 985 } | |
| 986 return NULL; | |
| 987 } | |
| 988 | |
| 989 static OSThread* create_os_thread(Thread* thread, thread_t thread_id) { | |
| 990 // Allocate the OSThread object | |
| 991 OSThread* osthread = new OSThread(NULL, NULL); | |
| 992 if (osthread == NULL) return NULL; | |
| 993 | |
| 994 // Store info on the Solaris thread into the OSThread | |
| 995 osthread->set_thread_id(thread_id); | |
| 996 osthread->set_lwp_id(_lwp_self()); | |
| 997 thread->_schedctl = (void *) schedctl_init () ; | |
| 998 | |
| 999 if (UseNUMA) { | |
| 1000 int lgrp_id = os::numa_get_group_id(); | |
| 1001 if (lgrp_id != -1) { | |
| 1002 thread->set_lgrp_id(lgrp_id); | |
| 1003 } | |
| 1004 } | |
| 1005 | |
| 1006 if ( ThreadPriorityVerbose ) { | |
| 1007 tty->print_cr("In create_os_thread, Thread " INTPTR_FORMAT ", LWP is " INTPTR_FORMAT "\n", | |
| 1008 osthread->thread_id(), osthread->lwp_id() ); | |
| 1009 } | |
| 1010 | |
| 1011 // Initial thread state is INITIALIZED, not SUSPENDED | |
| 1012 osthread->set_state(INITIALIZED); | |
| 1013 | |
| 1014 return osthread; | |
| 1015 } | |
| 1016 | |
| 1017 void os::Solaris::hotspot_sigmask(Thread* thread) { | |
| 1018 | |
| 1019 //Save caller's signal mask | |
| 1020 sigset_t sigmask; | |
| 1021 thr_sigsetmask(SIG_SETMASK, NULL, &sigmask); | |
| 1022 OSThread *osthread = thread->osthread(); | |
| 1023 osthread->set_caller_sigmask(sigmask); | |
| 1024 | |
| 1025 thr_sigsetmask(SIG_UNBLOCK, os::Solaris::unblocked_signals(), NULL); | |
| 1026 if (!ReduceSignalUsage) { | |
| 1027 if (thread->is_VM_thread()) { | |
| 1028 // Only the VM thread handles BREAK_SIGNAL ... | |
| 1029 thr_sigsetmask(SIG_UNBLOCK, vm_signals(), NULL); | |
| 1030 } else { | |
| 1031 // ... all other threads block BREAK_SIGNAL | |
| 1032 assert(!sigismember(vm_signals(), SIGINT), "SIGINT should not be blocked"); | |
| 1033 thr_sigsetmask(SIG_BLOCK, vm_signals(), NULL); | |
| 1034 } | |
| 1035 } | |
| 1036 } | |
| 1037 | |
| 1038 bool os::create_attached_thread(JavaThread* thread) { | |
| 1039 #ifdef ASSERT | |
| 1040 thread->verify_not_published(); | |
| 1041 #endif | |
| 1042 OSThread* osthread = create_os_thread(thread, thr_self()); | |
| 1043 if (osthread == NULL) { | |
| 1044 return false; | |
| 1045 } | |
| 1046 | |
| 1047 // Initial thread state is RUNNABLE | |
| 1048 osthread->set_state(RUNNABLE); | |
| 1049 thread->set_osthread(osthread); | |
| 1050 | |
| 1051 // initialize signal mask for this thread | |
| 1052 // and save the caller's signal mask | |
| 1053 os::Solaris::hotspot_sigmask(thread); | |
| 1054 | |
| 1055 return true; | |
| 1056 } | |
| 1057 | |
| 1058 bool os::create_main_thread(JavaThread* thread) { | |
| 1059 #ifdef ASSERT | |
| 1060 thread->verify_not_published(); | |
| 1061 #endif | |
| 1062 if (_starting_thread == NULL) { | |
| 1063 _starting_thread = create_os_thread(thread, main_thread); | |
| 1064 if (_starting_thread == NULL) { | |
| 1065 return false; | |
| 1066 } | |
| 1067 } | |
| 1068 | |
| 1069 // The primodial thread is runnable from the start | |
| 1070 _starting_thread->set_state(RUNNABLE); | |
| 1071 | |
| 1072 thread->set_osthread(_starting_thread); | |
| 1073 | |
| 1074 // initialize signal mask for this thread | |
| 1075 // and save the caller's signal mask | |
| 1076 os::Solaris::hotspot_sigmask(thread); | |
| 1077 | |
| 1078 return true; | |
| 1079 } | |
| 1080 | |
| 1081 // _T2_libthread is true if we believe we are running with the newer | |
| 1082 // SunSoft lwp/libthread.so (2.8 patch, 2.9 default) | |
| 1083 bool os::Solaris::_T2_libthread = false; | |
| 1084 | |
| 1085 bool os::create_thread(Thread* thread, ThreadType thr_type, size_t stack_size) { | |
| 1086 // Allocate the OSThread object | |
| 1087 OSThread* osthread = new OSThread(NULL, NULL); | |
| 1088 if (osthread == NULL) { | |
| 1089 return false; | |
| 1090 } | |
| 1091 | |
| 1092 if ( ThreadPriorityVerbose ) { | |
| 1093 char *thrtyp; | |
| 1094 switch ( thr_type ) { | |
| 1095 case vm_thread: | |
| 1096 thrtyp = (char *)"vm"; | |
| 1097 break; | |
| 1098 case cgc_thread: | |
| 1099 thrtyp = (char *)"cgc"; | |
| 1100 break; | |
| 1101 case pgc_thread: | |
| 1102 thrtyp = (char *)"pgc"; | |
| 1103 break; | |
| 1104 case java_thread: | |
| 1105 thrtyp = (char *)"java"; | |
| 1106 break; | |
| 1107 case compiler_thread: | |
| 1108 thrtyp = (char *)"compiler"; | |
| 1109 break; | |
| 1110 case watcher_thread: | |
| 1111 thrtyp = (char *)"watcher"; | |
| 1112 break; | |
| 1113 default: | |
| 1114 thrtyp = (char *)"unknown"; | |
| 1115 break; | |
| 1116 } | |
| 1117 tty->print_cr("In create_thread, creating a %s thread\n", thrtyp); | |
| 1118 } | |
| 1119 | |
| 1120 // Calculate stack size if it's not specified by caller. | |
| 1121 if (stack_size == 0) { | |
| 1122 // The default stack size 1M (2M for LP64). | |
| 1123 stack_size = (BytesPerWord >> 2) * K * K; | |
| 1124 | |
| 1125 switch (thr_type) { | |
| 1126 case os::java_thread: | |
| 1127 // Java threads use ThreadStackSize which default value can be changed with the flag -Xss | |
| 1128 if (JavaThread::stack_size_at_create() > 0) stack_size = JavaThread::stack_size_at_create(); | |
| 1129 break; | |
| 1130 case os::compiler_thread: | |
| 1131 if (CompilerThreadStackSize > 0) { | |
| 1132 stack_size = (size_t)(CompilerThreadStackSize * K); | |
| 1133 break; | |
| 1134 } // else fall through: | |
| 1135 // use VMThreadStackSize if CompilerThreadStackSize is not defined | |
| 1136 case os::vm_thread: | |
| 1137 case os::pgc_thread: | |
| 1138 case os::cgc_thread: | |
| 1139 case os::watcher_thread: | |
| 1140 if (VMThreadStackSize > 0) stack_size = (size_t)(VMThreadStackSize * K); | |
| 1141 break; | |
| 1142 } | |
| 1143 } | |
| 1144 stack_size = MAX2(stack_size, os::Solaris::min_stack_allowed); | |
| 1145 | |
| 1146 // Initial state is ALLOCATED but not INITIALIZED | |
| 1147 osthread->set_state(ALLOCATED); | |
| 1148 | |
| 1149 if (os::Solaris::_os_thread_count > os::Solaris::_os_thread_limit) { | |
| 1150 // We got lots of threads. Check if we still have some address space left. | |
| 1151 // Need to be at least 5Mb of unreserved address space. We do check by | |
| 1152 // trying to reserve some. | |
| 1153 const size_t VirtualMemoryBangSize = 20*K*K; | |
| 1154 char* mem = os::reserve_memory(VirtualMemoryBangSize); | |
| 1155 if (mem == NULL) { | |
| 1156 delete osthread; | |
| 1157 return false; | |
| 1158 } else { | |
| 1159 // Release the memory again | |
| 1160 os::release_memory(mem, VirtualMemoryBangSize); | |
| 1161 } | |
| 1162 } | |
| 1163 | |
| 1164 // Setup osthread because the child thread may need it. | |
| 1165 thread->set_osthread(osthread); | |
| 1166 | |
| 1167 // Create the Solaris thread | |
| 1168 // explicit THR_BOUND for T2_libthread case in case | |
| 1169 // that assumption is not accurate, but our alternate signal stack | |
| 1170 // handling is based on it which must have bound threads | |
| 1171 thread_t tid = 0; | |
| 1172 long flags = (UseDetachedThreads ? THR_DETACHED : 0) | THR_SUSPENDED | |
| 1173 | ((UseBoundThreads || os::Solaris::T2_libthread() || | |
| 1174 (thr_type == vm_thread) || | |
| 1175 (thr_type == cgc_thread) || | |
| 1176 (thr_type == pgc_thread) || | |
| 1177 (thr_type == compiler_thread && BackgroundCompilation)) ? | |
| 1178 THR_BOUND : 0); | |
| 1179 int status; | |
| 1180 | |
| 1181 // 4376845 -- libthread/kernel don't provide enough LWPs to utilize all CPUs. | |
| 1182 // | |
| 1183 // On multiprocessors systems, libthread sometimes under-provisions our | |
| 1184 // process with LWPs. On a 30-way systems, for instance, we could have | |
| 1185 // 50 user-level threads in ready state and only 2 or 3 LWPs assigned | |
| 1186 // to our process. This can result in under utilization of PEs. | |
| 1187 // I suspect the problem is related to libthread's LWP | |
| 1188 // pool management and to the kernel's SIGBLOCKING "last LWP parked" | |
| 1189 // upcall policy. | |
| 1190 // | |
| 1191 // The following code is palliative -- it attempts to ensure that our | |
| 1192 // process has sufficient LWPs to take advantage of multiple PEs. | |
| 1193 // Proper long-term cures include using user-level threads bound to LWPs | |
| 1194 // (THR_BOUND) or using LWP-based synchronization. Note that there is a | |
| 1195 // slight timing window with respect to sampling _os_thread_count, but | |
| 1196 // the race is benign. Also, we should periodically recompute | |
| 1197 // _processors_online as the min of SC_NPROCESSORS_ONLN and the | |
| 1198 // the number of PEs in our partition. You might be tempted to use | |
| 1199 // THR_NEW_LWP here, but I'd recommend against it as that could | |
| 1200 // result in undesirable growth of the libthread's LWP pool. | |
| 1201 // The fix below isn't sufficient; for instance, it doesn't take into count | |
| 1202 // LWPs parked on IO. It does, however, help certain CPU-bound benchmarks. | |
| 1203 // | |
| 1204 // Some pathologies this scheme doesn't handle: | |
| 1205 // * Threads can block, releasing the LWPs. The LWPs can age out. | |
| 1206 // When a large number of threads become ready again there aren't | |
| 1207 // enough LWPs available to service them. This can occur when the | |
| 1208 // number of ready threads oscillates. | |
| 1209 // * LWPs/Threads park on IO, thus taking the LWP out of circulation. | |
| 1210 // | |
| 1211 // Finally, we should call thr_setconcurrency() periodically to refresh | |
| 1212 // the LWP pool and thwart the LWP age-out mechanism. | |
| 1213 // The "+3" term provides a little slop -- we want to slightly overprovision. | |
| 1214 | |
| 1215 if (AdjustConcurrency && os::Solaris::_os_thread_count < (_processors_online+3)) { | |
| 1216 if (!(flags & THR_BOUND)) { | |
| 1217 thr_setconcurrency (os::Solaris::_os_thread_count); // avoid starvation | |
| 1218 } | |
| 1219 } | |
| 1220 // Although this doesn't hurt, we should warn of undefined behavior | |
| 1221 // when using unbound T1 threads with schedctl(). This should never | |
| 1222 // happen, as the compiler and VM threads are always created bound | |
| 1223 DEBUG_ONLY( | |
| 1224 if ((VMThreadHintNoPreempt || CompilerThreadHintNoPreempt) && | |
| 1225 (!os::Solaris::T2_libthread() && (!(flags & THR_BOUND))) && | |
| 1226 ((thr_type == vm_thread) || (thr_type == cgc_thread) || | |
| 1227 (thr_type == pgc_thread) || (thr_type == compiler_thread && BackgroundCompilation))) { | |
| 1228 warning("schedctl behavior undefined when Compiler/VM/GC Threads are Unbound"); | |
| 1229 } | |
| 1230 ); | |
| 1231 | |
| 1232 | |
| 1233 // Mark that we don't have an lwp or thread id yet. | |
| 1234 // In case we attempt to set the priority before the thread starts. | |
| 1235 osthread->set_lwp_id(-1); | |
| 1236 osthread->set_thread_id(-1); | |
| 1237 | |
| 1238 status = thr_create(NULL, stack_size, java_start, thread, flags, &tid); | |
| 1239 if (status != 0) { | |
| 1240 if (PrintMiscellaneous && (Verbose || WizardMode)) { | |
| 1241 perror("os::create_thread"); | |
| 1242 } | |
| 1243 thread->set_osthread(NULL); | |
| 1244 // Need to clean up stuff we've allocated so far | |
| 1245 delete osthread; | |
| 1246 return false; | |
| 1247 } | |
| 1248 | |
| 1249 Atomic::inc(&os::Solaris::_os_thread_count); | |
| 1250 | |
| 1251 // Store info on the Solaris thread into the OSThread | |
| 1252 osthread->set_thread_id(tid); | |
| 1253 | |
| 1254 // Remember that we created this thread so we can set priority on it | |
| 1255 osthread->set_vm_created(); | |
| 1256 | |
|
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1257 // Set the default thread priority. If using bound threads, setting |
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1258 // lwp priority will be delayed until thread start. |
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1259 set_native_priority(thread, |
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1260 DefaultThreadPriority == -1 ? |
| 0 | 1261 java_to_os_priority[NormPriority] : |
| 1262 DefaultThreadPriority); | |
| 1263 | |
| 1264 // Initial thread state is INITIALIZED, not SUSPENDED | |
| 1265 osthread->set_state(INITIALIZED); | |
| 1266 | |
| 1267 // The thread is returned suspended (in state INITIALIZED), and is started higher up in the call chain | |
| 1268 return true; | |
| 1269 } | |
| 1270 | |
| 1271 /* defined for >= Solaris 10. This allows builds on earlier versions | |
| 1272 * of Solaris to take advantage of the newly reserved Solaris JVM signals | |
| 1273 * With SIGJVM1, SIGJVM2, INTERRUPT_SIGNAL is SIGJVM1, ASYNC_SIGNAL is SIGJVM2 | |
| 1274 * and -XX:+UseAltSigs does nothing since these should have no conflict | |
| 1275 */ | |
| 1276 #if !defined(SIGJVM1) | |
| 1277 #define SIGJVM1 39 | |
| 1278 #define SIGJVM2 40 | |
| 1279 #endif | |
| 1280 | |
| 1281 debug_only(static bool signal_sets_initialized = false); | |
| 1282 static sigset_t unblocked_sigs, vm_sigs, allowdebug_blocked_sigs; | |
| 1283 int os::Solaris::_SIGinterrupt = INTERRUPT_SIGNAL; | |
| 1284 int os::Solaris::_SIGasync = ASYNC_SIGNAL; | |
| 1285 | |
| 1286 bool os::Solaris::is_sig_ignored(int sig) { | |
| 1287 struct sigaction oact; | |
| 1288 sigaction(sig, (struct sigaction*)NULL, &oact); | |
| 1289 void* ohlr = oact.sa_sigaction ? CAST_FROM_FN_PTR(void*, oact.sa_sigaction) | |
| 1290 : CAST_FROM_FN_PTR(void*, oact.sa_handler); | |
| 1291 if (ohlr == CAST_FROM_FN_PTR(void*, SIG_IGN)) | |
| 1292 return true; | |
| 1293 else | |
| 1294 return false; | |
| 1295 } | |
| 1296 | |
| 1297 // Note: SIGRTMIN is a macro that calls sysconf() so it will | |
| 1298 // dynamically detect SIGRTMIN value for the system at runtime, not buildtime | |
| 1299 static bool isJVM1available() { | |
| 1300 return SIGJVM1 < SIGRTMIN; | |
| 1301 } | |
| 1302 | |
| 1303 void os::Solaris::signal_sets_init() { | |
| 1304 // Should also have an assertion stating we are still single-threaded. | |
| 1305 assert(!signal_sets_initialized, "Already initialized"); | |
| 1306 // Fill in signals that are necessarily unblocked for all threads in | |
| 1307 // the VM. Currently, we unblock the following signals: | |
| 1308 // SHUTDOWN{1,2,3}_SIGNAL: for shutdown hooks support (unless over-ridden | |
| 1309 // by -Xrs (=ReduceSignalUsage)); | |
| 1310 // BREAK_SIGNAL which is unblocked only by the VM thread and blocked by all | |
| 1311 // other threads. The "ReduceSignalUsage" boolean tells us not to alter | |
| 1312 // the dispositions or masks wrt these signals. | |
| 1313 // Programs embedding the VM that want to use the above signals for their | |
| 1314 // own purposes must, at this time, use the "-Xrs" option to prevent | |
| 1315 // interference with shutdown hooks and BREAK_SIGNAL thread dumping. | |
| 1316 // (See bug 4345157, and other related bugs). | |
| 1317 // In reality, though, unblocking these signals is really a nop, since | |
| 1318 // these signals are not blocked by default. | |
| 1319 sigemptyset(&unblocked_sigs); | |
| 1320 sigemptyset(&allowdebug_blocked_sigs); | |
| 1321 sigaddset(&unblocked_sigs, SIGILL); | |
| 1322 sigaddset(&unblocked_sigs, SIGSEGV); | |
| 1323 sigaddset(&unblocked_sigs, SIGBUS); | |
| 1324 sigaddset(&unblocked_sigs, SIGFPE); | |
| 1325 | |
| 1326 if (isJVM1available) { | |
| 1327 os::Solaris::set_SIGinterrupt(SIGJVM1); | |
| 1328 os::Solaris::set_SIGasync(SIGJVM2); | |
| 1329 } else if (UseAltSigs) { | |
| 1330 os::Solaris::set_SIGinterrupt(ALT_INTERRUPT_SIGNAL); | |
| 1331 os::Solaris::set_SIGasync(ALT_ASYNC_SIGNAL); | |
| 1332 } else { | |
| 1333 os::Solaris::set_SIGinterrupt(INTERRUPT_SIGNAL); | |
| 1334 os::Solaris::set_SIGasync(ASYNC_SIGNAL); | |
| 1335 } | |
| 1336 | |
| 1337 sigaddset(&unblocked_sigs, os::Solaris::SIGinterrupt()); | |
| 1338 sigaddset(&unblocked_sigs, os::Solaris::SIGasync()); | |
| 1339 | |
| 1340 if (!ReduceSignalUsage) { | |
| 1341 if (!os::Solaris::is_sig_ignored(SHUTDOWN1_SIGNAL)) { | |
| 1342 sigaddset(&unblocked_sigs, SHUTDOWN1_SIGNAL); | |
| 1343 sigaddset(&allowdebug_blocked_sigs, SHUTDOWN1_SIGNAL); | |
| 1344 } | |
| 1345 if (!os::Solaris::is_sig_ignored(SHUTDOWN2_SIGNAL)) { | |
| 1346 sigaddset(&unblocked_sigs, SHUTDOWN2_SIGNAL); | |
| 1347 sigaddset(&allowdebug_blocked_sigs, SHUTDOWN2_SIGNAL); | |
| 1348 } | |
| 1349 if (!os::Solaris::is_sig_ignored(SHUTDOWN3_SIGNAL)) { | |
| 1350 sigaddset(&unblocked_sigs, SHUTDOWN3_SIGNAL); | |
| 1351 sigaddset(&allowdebug_blocked_sigs, SHUTDOWN3_SIGNAL); | |
| 1352 } | |
| 1353 } | |
| 1354 // Fill in signals that are blocked by all but the VM thread. | |
| 1355 sigemptyset(&vm_sigs); | |
| 1356 if (!ReduceSignalUsage) | |
| 1357 sigaddset(&vm_sigs, BREAK_SIGNAL); | |
| 1358 debug_only(signal_sets_initialized = true); | |
| 1359 | |
| 1360 // For diagnostics only used in run_periodic_checks | |
| 1361 sigemptyset(&check_signal_done); | |
| 1362 } | |
| 1363 | |
| 1364 // These are signals that are unblocked while a thread is running Java. | |
| 1365 // (For some reason, they get blocked by default.) | |
| 1366 sigset_t* os::Solaris::unblocked_signals() { | |
| 1367 assert(signal_sets_initialized, "Not initialized"); | |
| 1368 return &unblocked_sigs; | |
| 1369 } | |
| 1370 | |
| 1371 // These are the signals that are blocked while a (non-VM) thread is | |
| 1372 // running Java. Only the VM thread handles these signals. | |
| 1373 sigset_t* os::Solaris::vm_signals() { | |
| 1374 assert(signal_sets_initialized, "Not initialized"); | |
| 1375 return &vm_sigs; | |
| 1376 } | |
| 1377 | |
| 1378 // These are signals that are blocked during cond_wait to allow debugger in | |
| 1379 sigset_t* os::Solaris::allowdebug_blocked_signals() { | |
| 1380 assert(signal_sets_initialized, "Not initialized"); | |
| 1381 return &allowdebug_blocked_sigs; | |
| 1382 } | |
| 1383 | |
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1384 |
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1385 void _handle_uncaught_cxx_exception() { |
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1386 VMError err("An uncaught C++ exception"); |
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1387 err.report_and_die(); |
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1388 } |
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1389 |
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1390 |
| 0 | 1391 // First crack at OS-specific initialization, from inside the new thread. |
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1392 void os::initialize_thread(Thread* thr) { |
| 0 | 1393 int r = thr_main() ; |
| 1394 guarantee (r == 0 || r == 1, "CR6501650 or CR6493689") ; | |
| 1395 if (r) { | |
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1396 JavaThread* jt = (JavaThread *)thr; |
| 0 | 1397 assert(jt != NULL,"Sanity check"); |
| 1398 size_t stack_size; | |
| 1399 address base = jt->stack_base(); | |
| 1400 if (Arguments::created_by_java_launcher()) { | |
| 1401 // Use 2MB to allow for Solaris 7 64 bit mode. | |
| 1402 stack_size = JavaThread::stack_size_at_create() == 0 | |
| 1403 ? 2048*K : JavaThread::stack_size_at_create(); | |
| 1404 | |
| 1405 // There are rare cases when we may have already used more than | |
| 1406 // the basic stack size allotment before this method is invoked. | |
| 1407 // Attempt to allow for a normally sized java_stack. | |
| 1408 size_t current_stack_offset = (size_t)(base - (address)&stack_size); | |
| 1409 stack_size += ReservedSpace::page_align_size_down(current_stack_offset); | |
| 1410 } else { | |
| 1411 // 6269555: If we were not created by a Java launcher, i.e. if we are | |
| 1412 // running embedded in a native application, treat the primordial thread | |
| 1413 // as much like a native attached thread as possible. This means using | |
| 1414 // the current stack size from thr_stksegment(), unless it is too large | |
| 1415 // to reliably setup guard pages. A reasonable max size is 8MB. | |
| 1416 size_t current_size = current_stack_size(); | |
| 1417 // This should never happen, but just in case.... | |
| 1418 if (current_size == 0) current_size = 2 * K * K; | |
| 1419 stack_size = current_size > (8 * K * K) ? (8 * K * K) : current_size; | |
| 1420 } | |
| 1421 address bottom = (address)align_size_up((intptr_t)(base - stack_size), os::vm_page_size());; | |
| 1422 stack_size = (size_t)(base - bottom); | |
| 1423 | |
| 1424 assert(stack_size > 0, "Stack size calculation problem"); | |
| 1425 | |
| 1426 if (stack_size > jt->stack_size()) { | |
| 1427 NOT_PRODUCT( | |
| 1428 struct rlimit limits; | |
| 1429 getrlimit(RLIMIT_STACK, &limits); | |
| 1430 size_t size = adjust_stack_size(base, (size_t)limits.rlim_cur); | |
| 1431 assert(size >= jt->stack_size(), "Stack size problem in main thread"); | |
| 1432 ) | |
| 1433 tty->print_cr( | |
| 1434 "Stack size of %d Kb exceeds current limit of %d Kb.\n" | |
| 1435 "(Stack sizes are rounded up to a multiple of the system page size.)\n" | |
| 1436 "See limit(1) to increase the stack size limit.", | |
| 1437 stack_size / K, jt->stack_size() / K); | |
| 1438 vm_exit(1); | |
| 1439 } | |
| 1440 assert(jt->stack_size() >= stack_size, | |
| 1441 "Attempt to map more stack than was allocated"); | |
| 1442 jt->set_stack_size(stack_size); | |
| 1443 } | |
| 1444 | |
| 1445 // 5/22/01: Right now alternate signal stacks do not handle | |
| 1446 // throwing stack overflow exceptions, see bug 4463178 | |
| 1447 // Until a fix is found for this, T2 will NOT imply alternate signal | |
| 1448 // stacks. | |
| 1449 // If using T2 libthread threads, install an alternate signal stack. | |
| 1450 // Because alternate stacks associate with LWPs on Solaris, | |
| 1451 // see sigaltstack(2), if using UNBOUND threads, or if UseBoundThreads | |
| 1452 // we prefer to explicitly stack bang. | |
| 1453 // If not using T2 libthread, but using UseBoundThreads any threads | |
| 1454 // (primordial thread, jni_attachCurrentThread) we do not create, | |
| 1455 // probably are not bound, therefore they can not have an alternate | |
| 1456 // signal stack. Since our stack banging code is generated and | |
| 1457 // is shared across threads, all threads must be bound to allow | |
| 1458 // using alternate signal stacks. The alternative is to interpose | |
| 1459 // on _lwp_create to associate an alt sig stack with each LWP, | |
| 1460 // and this could be a problem when the JVM is embedded. | |
| 1461 // We would prefer to use alternate signal stacks with T2 | |
| 1462 // Since there is currently no accurate way to detect T2 | |
| 1463 // we do not. Assuming T2 when running T1 causes sig 11s or assertions | |
| 1464 // on installing alternate signal stacks | |
| 1465 | |
| 1466 | |
| 1467 // 05/09/03: removed alternate signal stack support for Solaris | |
| 1468 // The alternate signal stack mechanism is no longer needed to | |
| 1469 // handle stack overflow. This is now handled by allocating | |
| 1470 // guard pages (red zone) and stackbanging. | |
| 1471 // Initially the alternate signal stack mechanism was removed because | |
| 1472 // it did not work with T1 llibthread. Alternate | |
| 1473 // signal stacks MUST have all threads bound to lwps. Applications | |
| 1474 // can create their own threads and attach them without their being | |
| 1475 // bound under T1. This is frequently the case for the primordial thread. | |
| 1476 // If we were ever to reenable this mechanism we would need to | |
| 1477 // use the dynamic check for T2 libthread. | |
| 1478 | |
| 1479 os::Solaris::init_thread_fpu_state(); | |
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1480 std::set_terminate(_handle_uncaught_cxx_exception); |
| 0 | 1481 } |
| 1482 | |
| 1483 | |
| 1484 | |
| 1485 // Free Solaris resources related to the OSThread | |
| 1486 void os::free_thread(OSThread* osthread) { | |
| 1487 assert(osthread != NULL, "os::free_thread but osthread not set"); | |
| 1488 | |
| 1489 | |
| 1490 // We are told to free resources of the argument thread, | |
| 1491 // but we can only really operate on the current thread. | |
| 1492 // The main thread must take the VMThread down synchronously | |
| 1493 // before the main thread exits and frees up CodeHeap | |
| 1494 guarantee((Thread::current()->osthread() == osthread | |
| 1495 || (osthread == VMThread::vm_thread()->osthread())), "os::free_thread but not current thread"); | |
| 1496 if (Thread::current()->osthread() == osthread) { | |
| 1497 // Restore caller's signal mask | |
| 1498 sigset_t sigmask = osthread->caller_sigmask(); | |
| 1499 thr_sigsetmask(SIG_SETMASK, &sigmask, NULL); | |
| 1500 } | |
| 1501 delete osthread; | |
| 1502 } | |
| 1503 | |
| 1504 void os::pd_start_thread(Thread* thread) { | |
| 1505 int status = thr_continue(thread->osthread()->thread_id()); | |
| 1506 assert_status(status == 0, status, "thr_continue failed"); | |
| 1507 } | |
| 1508 | |
| 1509 | |
| 1510 intx os::current_thread_id() { | |
| 1511 return (intx)thr_self(); | |
| 1512 } | |
| 1513 | |
| 1514 static pid_t _initial_pid = 0; | |
| 1515 | |
| 1516 int os::current_process_id() { | |
| 1517 return (int)(_initial_pid ? _initial_pid : getpid()); | |
| 1518 } | |
| 1519 | |
| 1520 int os::allocate_thread_local_storage() { | |
| 1521 // %%% in Win32 this allocates a memory segment pointed to by a | |
| 1522 // register. Dan Stein can implement a similar feature in | |
| 1523 // Solaris. Alternatively, the VM can do the same thing | |
| 1524 // explicitly: malloc some storage and keep the pointer in a | |
| 1525 // register (which is part of the thread's context) (or keep it | |
| 1526 // in TLS). | |
| 1527 // %%% In current versions of Solaris, thr_self and TSD can | |
| 1528 // be accessed via short sequences of displaced indirections. | |
| 1529 // The value of thr_self is available as %g7(36). | |
| 1530 // The value of thr_getspecific(k) is stored in %g7(12)(4)(k*4-4), | |
| 1531 // assuming that the current thread already has a value bound to k. | |
| 1532 // It may be worth experimenting with such access patterns, | |
| 1533 // and later having the parameters formally exported from a Solaris | |
| 1534 // interface. I think, however, that it will be faster to | |
| 1535 // maintain the invariant that %g2 always contains the | |
| 1536 // JavaThread in Java code, and have stubs simply | |
| 1537 // treat %g2 as a caller-save register, preserving it in a %lN. | |
| 1538 thread_key_t tk; | |
| 1539 if (thr_keycreate( &tk, NULL ) ) | |
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1540 fatal(err_msg("os::allocate_thread_local_storage: thr_keycreate failed " |
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1541 "(%s)", strerror(errno))); |
| 0 | 1542 return int(tk); |
| 1543 } | |
| 1544 | |
| 1545 void os::free_thread_local_storage(int index) { | |
| 1546 // %%% don't think we need anything here | |
| 1547 // if ( pthread_key_delete((pthread_key_t) tk) ) | |
| 1548 // fatal("os::free_thread_local_storage: pthread_key_delete failed"); | |
| 1549 } | |
| 1550 | |
| 1551 #define SMALLINT 32 // libthread allocate for tsd_common is a version specific | |
| 1552 // small number - point is NO swap space available | |
| 1553 void os::thread_local_storage_at_put(int index, void* value) { | |
| 1554 // %%% this is used only in threadLocalStorage.cpp | |
| 1555 if (thr_setspecific((thread_key_t)index, value)) { | |
| 1556 if (errno == ENOMEM) { | |
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1557 vm_exit_out_of_memory(SMALLINT, OOM_MALLOC_ERROR, |
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1558 "thr_setspecific: out of swap space"); |
| 0 | 1559 } else { |
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1560 fatal(err_msg("os::thread_local_storage_at_put: thr_setspecific failed " |
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1561 "(%s)", strerror(errno))); |
| 0 | 1562 } |
| 1563 } else { | |
| 1564 ThreadLocalStorage::set_thread_in_slot ((Thread *) value) ; | |
| 1565 } | |
| 1566 } | |
| 1567 | |
| 1568 // This function could be called before TLS is initialized, for example, when | |
| 1569 // VM receives an async signal or when VM causes a fatal error during | |
| 1570 // initialization. Return NULL if thr_getspecific() fails. | |
| 1571 void* os::thread_local_storage_at(int index) { | |
| 1572 // %%% this is used only in threadLocalStorage.cpp | |
| 1573 void* r = NULL; | |
| 1574 return thr_getspecific((thread_key_t)index, &r) != 0 ? NULL : r; | |
| 1575 } | |
| 1576 | |
| 1577 | |
| 1578 // gethrtime can move backwards if read from one cpu and then a different cpu | |
| 1579 // getTimeNanos is guaranteed to not move backward on Solaris | |
| 1580 // local spinloop created as faster for a CAS on an int than | |
| 1581 // a CAS on a 64bit jlong. Also Atomic::cmpxchg for jlong is not | |
| 1582 // supported on sparc v8 or pre supports_cx8 intel boxes. | |
| 1583 // oldgetTimeNanos for systems which do not support CAS on 64bit jlong | |
| 1584 // i.e. sparc v8 and pre supports_cx8 (i486) intel boxes | |
| 1585 inline hrtime_t oldgetTimeNanos() { | |
| 1586 int gotlock = LOCK_INVALID; | |
| 1587 hrtime_t newtime = gethrtime(); | |
| 1588 | |
| 1589 for (;;) { | |
| 1590 // grab lock for max_hrtime | |
| 1591 int curlock = max_hrtime_lock; | |
| 1592 if (curlock & LOCK_BUSY) continue; | |
| 1593 if (gotlock = Atomic::cmpxchg(LOCK_BUSY, &max_hrtime_lock, LOCK_FREE) != LOCK_FREE) continue; | |
| 1594 if (newtime > max_hrtime) { | |
| 1595 max_hrtime = newtime; | |
| 1596 } else { | |
| 1597 newtime = max_hrtime; | |
| 1598 } | |
| 1599 // release lock | |
| 1600 max_hrtime_lock = LOCK_FREE; | |
| 1601 return newtime; | |
| 1602 } | |
| 1603 } | |
| 1604 // gethrtime can move backwards if read from one cpu and then a different cpu | |
| 1605 // getTimeNanos is guaranteed to not move backward on Solaris | |
| 1606 inline hrtime_t getTimeNanos() { | |
| 1607 if (VM_Version::supports_cx8()) { | |
| 499 | 1608 const hrtime_t now = gethrtime(); |
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1609 // Use atomic long load since 32-bit x86 uses 2 registers to keep long. |
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1610 const hrtime_t prev = Atomic::load((volatile jlong*)&max_hrtime); |
| 499 | 1611 if (now <= prev) return prev; // same or retrograde time; |
| 1612 const hrtime_t obsv = Atomic::cmpxchg(now, (volatile jlong*)&max_hrtime, prev); | |
| 1613 assert(obsv >= prev, "invariant"); // Monotonicity | |
| 1614 // If the CAS succeeded then we're done and return "now". | |
| 1615 // If the CAS failed and the observed value "obs" is >= now then | |
| 1616 // we should return "obs". If the CAS failed and now > obs > prv then | |
| 1617 // some other thread raced this thread and installed a new value, in which case | |
| 1618 // we could either (a) retry the entire operation, (b) retry trying to install now | |
| 1619 // or (c) just return obs. We use (c). No loop is required although in some cases | |
| 1620 // we might discard a higher "now" value in deference to a slightly lower but freshly | |
| 1621 // installed obs value. That's entirely benign -- it admits no new orderings compared | |
| 1622 // to (a) or (b) -- and greatly reduces coherence traffic. | |
| 1623 // We might also condition (c) on the magnitude of the delta between obs and now. | |
| 1624 // Avoiding excessive CAS operations to hot RW locations is critical. | |
| 1625 // See http://blogs.sun.com/dave/entry/cas_and_cache_trivia_invalidate | |
| 1626 return (prev == obsv) ? now : obsv ; | |
| 0 | 1627 } else { |
| 1628 return oldgetTimeNanos(); | |
| 1629 } | |
| 1630 } | |
| 1631 | |
| 1632 // Time since start-up in seconds to a fine granularity. | |
| 1633 // Used by VMSelfDestructTimer and the MemProfiler. | |
| 1634 double os::elapsedTime() { | |
| 1635 return (double)(getTimeNanos() - first_hrtime) / (double)hrtime_hz; | |
| 1636 } | |
| 1637 | |
| 1638 jlong os::elapsed_counter() { | |
| 1639 return (jlong)(getTimeNanos() - first_hrtime); | |
| 1640 } | |
| 1641 | |
| 1642 jlong os::elapsed_frequency() { | |
| 1643 return hrtime_hz; | |
| 1644 } | |
| 1645 | |
| 1646 // Return the real, user, and system times in seconds from an | |
| 1647 // arbitrary fixed point in the past. | |
| 1648 bool os::getTimesSecs(double* process_real_time, | |
| 1649 double* process_user_time, | |
| 1650 double* process_system_time) { | |
| 1651 struct tms ticks; | |
| 1652 clock_t real_ticks = times(&ticks); | |
| 1653 | |
| 1654 if (real_ticks == (clock_t) (-1)) { | |
| 1655 return false; | |
| 1656 } else { | |
| 1657 double ticks_per_second = (double) clock_tics_per_sec; | |
| 1658 *process_user_time = ((double) ticks.tms_utime) / ticks_per_second; | |
| 1659 *process_system_time = ((double) ticks.tms_stime) / ticks_per_second; | |
| 1660 // For consistency return the real time from getTimeNanos() | |
| 1661 // converted to seconds. | |
| 1662 *process_real_time = ((double) getTimeNanos()) / ((double) NANOUNITS); | |
| 1663 | |
| 1664 return true; | |
| 1665 } | |
| 1666 } | |
| 1667 | |
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1668 bool os::supports_vtime() { return true; } |
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1669 |
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1670 bool os::enable_vtime() { |
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1671 int fd = ::open("/proc/self/ctl", O_WRONLY); |
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1672 if (fd == -1) |
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1673 return false; |
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1674 |
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|
1675 long cmd[] = { PCSET, PR_MSACCT }; |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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1972
diff
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|
1676 int res = ::write(fd, cmd, sizeof(long) * 2); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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diff
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|
1677 ::close(fd); |
|
342
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|
1678 if (res != sizeof(long) * 2) |
|
37f87013dfd8
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diff
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|
1679 return false; |
|
37f87013dfd8
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diff
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|
1680 |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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diff
changeset
|
1681 return true; |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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diff
changeset
|
1682 } |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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diff
changeset
|
1683 |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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diff
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|
1684 bool os::vtime_enabled() { |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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|
1685 int fd = ::open("/proc/self/status", O_RDONLY); |
|
342
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|
1686 if (fd == -1) |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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diff
changeset
|
1687 return false; |
|
37f87013dfd8
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diff
changeset
|
1688 |
|
37f87013dfd8
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diff
changeset
|
1689 pstatus_t status; |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
1690 int res = os::read(fd, (void*) &status, sizeof(pstatus_t)); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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diff
changeset
|
1691 ::close(fd); |
|
342
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diff
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|
1692 if (res != sizeof(pstatus_t)) |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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diff
changeset
|
1693 return false; |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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diff
changeset
|
1694 |
|
37f87013dfd8
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diff
changeset
|
1695 return status.pr_flags & PR_MSACCT; |
|
37f87013dfd8
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diff
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|
1696 } |
|
37f87013dfd8
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144
diff
changeset
|
1697 |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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diff
changeset
|
1698 double os::elapsedVTime() { |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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diff
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|
1699 return (double)gethrvtime() / (double)hrtime_hz; |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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changeset
|
1700 } |
|
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|
1701 |
| 0 | 1702 // Used internally for comparisons only |
| 1703 // getTimeMillis guaranteed to not move backwards on Solaris | |
| 1704 jlong getTimeMillis() { | |
| 1705 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
|
1706 return (jlong)(nanotime / NANOSECS_PER_MILLISEC); |
| 0 | 1707 } |
| 1708 | |
| 61 | 1709 // Must return millis since Jan 1 1970 for JVM_CurrentTimeMillis |
| 1710 jlong os::javaTimeMillis() { | |
| 0 | 1711 timeval t; |
| 1712 if (gettimeofday( &t, NULL) == -1) | |
|
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
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|
1713 fatal(err_msg("os::javaTimeMillis: gettimeofday (%s)", strerror(errno))); |
| 0 | 1714 return jlong(t.tv_sec) * 1000 + jlong(t.tv_usec) / 1000; |
| 1715 } | |
| 1716 | |
| 1717 jlong os::javaTimeNanos() { | |
| 1718 return (jlong)getTimeNanos(); | |
| 1719 } | |
| 1720 | |
| 1721 void os::javaTimeNanos_info(jvmtiTimerInfo *info_ptr) { | |
| 1722 info_ptr->max_value = ALL_64_BITS; // gethrtime() uses all 64 bits | |
| 1723 info_ptr->may_skip_backward = false; // not subject to resetting or drifting | |
| 1724 info_ptr->may_skip_forward = false; // not subject to resetting or drifting | |
| 1725 info_ptr->kind = JVMTI_TIMER_ELAPSED; // elapsed not CPU time | |
| 1726 } | |
| 1727 | |
| 1728 char * os::local_time_string(char *buf, size_t buflen) { | |
| 1729 struct tm t; | |
| 1730 time_t long_time; | |
| 1731 time(&long_time); | |
| 1732 localtime_r(&long_time, &t); | |
| 1733 jio_snprintf(buf, buflen, "%d-%02d-%02d %02d:%02d:%02d", | |
| 1734 t.tm_year + 1900, t.tm_mon + 1, t.tm_mday, | |
| 1735 t.tm_hour, t.tm_min, t.tm_sec); | |
| 1736 return buf; | |
| 1737 } | |
| 1738 | |
| 1739 // Note: os::shutdown() might be called very early during initialization, or | |
| 1740 // called from signal handler. Before adding something to os::shutdown(), make | |
| 1741 // sure it is async-safe and can handle partially initialized VM. | |
| 1742 void os::shutdown() { | |
| 1743 | |
| 1744 // allow PerfMemory to attempt cleanup of any persistent resources | |
| 1745 perfMemory_exit(); | |
| 1746 | |
| 1747 // needs to remove object in file system | |
| 1748 AttachListener::abort(); | |
| 1749 | |
| 1750 // flush buffered output, finish log files | |
| 1751 ostream_abort(); | |
| 1752 | |
| 1753 // Check for abort hook | |
| 1754 abort_hook_t abort_hook = Arguments::abort_hook(); | |
| 1755 if (abort_hook != NULL) { | |
| 1756 abort_hook(); | |
| 1757 } | |
| 1758 } | |
| 1759 | |
| 1760 // Note: os::abort() might be called very early during initialization, or | |
| 1761 // called from signal handler. Before adding something to os::abort(), make | |
| 1762 // sure it is async-safe and can handle partially initialized VM. | |
| 1763 void os::abort(bool dump_core) { | |
| 1764 os::shutdown(); | |
| 1765 if (dump_core) { | |
| 1766 #ifndef PRODUCT | |
| 1767 fdStream out(defaultStream::output_fd()); | |
| 1768 out.print_raw("Current thread is "); | |
| 1769 char buf[16]; | |
| 1770 jio_snprintf(buf, sizeof(buf), UINTX_FORMAT, os::current_thread_id()); | |
| 1771 out.print_raw_cr(buf); | |
| 1772 out.print_raw_cr("Dumping core ..."); | |
| 1773 #endif | |
| 1774 ::abort(); // dump core (for debugging) | |
| 1775 } | |
| 1776 | |
| 1777 ::exit(1); | |
| 1778 } | |
| 1779 | |
| 1780 // Die immediately, no exit hook, no abort hook, no cleanup. | |
| 1781 void os::die() { | |
|
8066
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7629
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|
1782 ::abort(); // dump core (for debugging) |
| 0 | 1783 } |
| 1784 | |
| 1785 // unused | |
| 1786 void os::set_error_file(const char *logfile) {} | |
| 1787 | |
| 1788 // DLL functions | |
| 1789 | |
| 1790 const char* os::dll_file_extension() { return ".so"; } | |
| 1791 | |
|
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2102
diff
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|
1792 // 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
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changeset
|
1793 // directory not the java application's temp directory, ala java.io.tmpdir. |
|
34d64ad817f4
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|
1794 const char* os::get_temp_directory() { return "/tmp"; } |
| 0 | 1795 |
| 691 | 1796 static bool file_exists(const char* filename) { |
| 1797 struct stat statbuf; | |
| 1798 if (filename == NULL || strlen(filename) == 0) { | |
| 1799 return false; | |
| 1800 } | |
| 1801 return os::stat(filename, &statbuf) == 0; | |
| 1802 } | |
| 1803 | |
|
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changeset
|
1804 bool os::dll_build_name(char* buffer, size_t buflen, |
| 691 | 1805 const char* pname, const char* fname) { |
|
6966
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changeset
|
1806 bool retval = false; |
| 242 | 1807 const size_t pnamelen = pname ? strlen(pname) : 0; |
| 1808 | |
|
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|
1809 // Return error on buffer overflow. |
| 242 | 1810 if (pnamelen + strlen(fname) + 10 > (size_t) buflen) { |
|
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changeset
|
1811 return retval; |
| 242 | 1812 } |
| 1813 | |
| 1814 if (pnamelen == 0) { | |
| 691 | 1815 snprintf(buffer, buflen, "lib%s.so", fname); |
|
6966
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changeset
|
1816 retval = true; |
| 691 | 1817 } else if (strchr(pname, *os::path_separator()) != NULL) { |
| 1818 int n; | |
| 1819 char** pelements = split_path(pname, &n); | |
|
9059
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diff
changeset
|
1820 if (pelements == NULL) { |
| 9062 | 1821 return false; |
|
9059
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parents:
8744
diff
changeset
|
1822 } |
| 691 | 1823 for (int i = 0 ; i < n ; i++) { |
| 1824 // really shouldn't be NULL but what the heck, check can't hurt | |
| 1825 if (pelements[i] == NULL || strlen(pelements[i]) == 0) { | |
| 1826 continue; // skip the empty path values | |
| 1827 } | |
| 1828 snprintf(buffer, buflen, "%s/lib%s.so", pelements[i], fname); | |
| 1829 if (file_exists(buffer)) { | |
|
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
|
1830 retval = true; |
| 691 | 1831 break; |
| 1832 } | |
| 1833 } | |
| 1834 // release the storage | |
| 1835 for (int i = 0 ; i < n ; i++) { | |
| 1836 if (pelements[i] != NULL) { | |
| 6197 | 1837 FREE_C_HEAP_ARRAY(char, pelements[i], mtInternal); |
| 691 | 1838 } |
| 1839 } | |
| 1840 if (pelements != NULL) { | |
| 6197 | 1841 FREE_C_HEAP_ARRAY(char*, pelements, mtInternal); |
| 691 | 1842 } |
| 242 | 1843 } else { |
| 691 | 1844 snprintf(buffer, buflen, "%s/lib%s.so", pname, fname); |
|
6966
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diff
changeset
|
1845 retval = true; |
|
6cb0d32b828b
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diff
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|
1846 } |
|
6cb0d32b828b
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changeset
|
1847 return retval; |
| 242 | 1848 } |
| 1849 | |
|
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8005044: remove crufty '_g' support from HS runtime code
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7206
diff
changeset
|
1850 // check if addr is inside libjvm.so |
| 0 | 1851 bool os::address_is_in_vm(address addr) { |
| 1852 static address libjvm_base_addr; | |
| 1853 Dl_info dlinfo; | |
| 1854 | |
| 1855 if (libjvm_base_addr == NULL) { | |
|
11092
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changeset
|
1856 if (dladdr(CAST_FROM_FN_PTR(void *, os::address_is_in_vm), &dlinfo) != 0) { |
|
59b052799158
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changeset
|
1857 libjvm_base_addr = (address)dlinfo.dli_fbase; |
|
59b052799158
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|
1858 } |
| 0 | 1859 assert(libjvm_base_addr !=NULL, "Cannot obtain base address for libjvm"); |
| 1860 } | |
| 1861 | |
|
11092
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|
1862 if (dladdr((void *)addr, &dlinfo) != 0) { |
| 0 | 1863 if (libjvm_base_addr == (address)dlinfo.dli_fbase) return true; |
| 1864 } | |
| 1865 | |
| 1866 return false; | |
| 1867 } | |
| 1868 | |
| 1869 typedef int (*dladdr1_func_type) (void *, Dl_info *, void **, int); | |
| 1870 static dladdr1_func_type dladdr1_func = NULL; | |
| 1871 | |
| 1872 bool os::dll_address_to_function_name(address addr, char *buf, | |
| 1873 int buflen, int * offset) { | |
|
11092
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|
1874 // buf is not optional, but offset is optional |
|
59b052799158
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changeset
|
1875 assert(buf != NULL, "sanity check"); |
|
59b052799158
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changeset
|
1876 |
| 0 | 1877 Dl_info dlinfo; |
| 1878 | |
| 1879 // dladdr1_func was initialized in os::init() | |
|
11092
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changeset
|
1880 if (dladdr1_func != NULL) { |
|
59b052799158
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dcubed
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changeset
|
1881 // yes, we have dladdr1 |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
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|
1882 |
|
59b052799158
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|
1883 // Support for dladdr1 is checked at runtime; it may be |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
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|
1884 // available even if the vm is built on a machine that does |
|
59b052799158
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dcubed
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diff
changeset
|
1885 // 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
|
1886 // RTLD_DL_SYMENT. |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
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|
1887 #ifndef RTLD_DL_SYMENT |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
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changeset
|
1888 #define RTLD_DL_SYMENT 1 |
|
59b052799158
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10986
diff
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|
1889 #endif |
|
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2130
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changeset
|
1890 #ifdef _LP64 |
|
11092
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|
1891 Elf64_Sym * info; |
|
2259
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|
1892 #else |
|
11092
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|
1893 Elf32_Sym * info; |
|
2259
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7018101: os::dll_address_to_function_name returning wrong answers in 64 bit
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2130
diff
changeset
|
1894 #endif |
|
11092
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changeset
|
1895 if (dladdr1_func((void *)addr, &dlinfo, (void **)&info, |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
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|
1896 RTLD_DL_SYMENT) != 0) { |
|
59b052799158
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changeset
|
1897 // see if we have a matching symbol that covers our address |
|
59b052799158
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|
1898 if (dlinfo.dli_saddr != NULL && |
|
59b052799158
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10986
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changeset
|
1899 (char *)dlinfo.dli_saddr + info->st_size > (char *)addr) { |
|
59b052799158
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|
1900 if (dlinfo.dli_sname != NULL) { |
|
59b052799158
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changeset
|
1901 if (!Decoder::demangle(dlinfo.dli_sname, buf, buflen)) { |
|
59b052799158
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|
1902 jio_snprintf(buf, buflen, "%s", dlinfo.dli_sname); |
|
59b052799158
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dcubed
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changeset
|
1903 } |
|
59b052799158
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changeset
|
1904 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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1972
diff
changeset
|
1905 return true; |
|
2d4762ec74af
7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
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1972
diff
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|
1906 } |
|
2d4762ec74af
7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
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|
1907 } |
|
11092
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|
1908 // no matching symbol so try for just file info |
|
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1909 if (dlinfo.dli_fname != NULL && dlinfo.dli_fbase != NULL) { |
|
2022
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|
1910 if (Decoder::decode((address)(addr - (address)dlinfo.dli_fbase), |
|
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|
1911 buf, buflen, offset, dlinfo.dli_fname)) { |
| 0 | 1912 return true; |
|
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|
1913 } |
| 0 | 1914 } |
|
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|
1915 } |
|
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1916 buf[0] = '\0'; |
|
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1917 if (offset != NULL) *offset = -1; |
|
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1918 return false; |
|
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|
1919 } |
|
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|
1920 |
|
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1921 // no, only dladdr is available |
|
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1922 if (dladdr((void *)addr, &dlinfo) != 0) { |
|
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1923 // see if we have a matching symbol |
|
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1924 if (dlinfo.dli_saddr != NULL && dlinfo.dli_sname != NULL) { |
|
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1925 if (!Decoder::demangle(dlinfo.dli_sname, buf, buflen)) { |
|
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1926 jio_snprintf(buf, buflen, dlinfo.dli_sname); |
|
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|
1927 } |
|
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1928 if (offset != NULL) *offset = addr - (address)dlinfo.dli_saddr; |
|
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1929 return true; |
|
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1930 } |
|
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1931 // no matching symbol so try for just file info |
|
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1932 if (dlinfo.dli_fname != NULL && dlinfo.dli_fbase != NULL) { |
|
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1933 if (Decoder::decode((address)(addr - (address)dlinfo.dli_fbase), |
|
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1934 buf, buflen, offset, dlinfo.dli_fname)) { |
|
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1935 return true; |
|
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|
1936 } |
|
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|
1937 } |
|
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|
1938 } |
|
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1939 buf[0] = '\0'; |
|
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1940 if (offset != NULL) *offset = -1; |
|
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1941 return false; |
| 0 | 1942 } |
| 1943 | |
| 1944 bool os::dll_address_to_library_name(address addr, char* buf, | |
| 1945 int buflen, int* offset) { | |
|
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1946 // buf is not optional, but offset is optional |
|
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1947 assert(buf != NULL, "sanity check"); |
|
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1948 |
| 0 | 1949 Dl_info dlinfo; |
| 1950 | |
|
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1951 if (dladdr((void*)addr, &dlinfo) != 0) { |
|
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1952 if (dlinfo.dli_fname != NULL) { |
|
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1953 jio_snprintf(buf, buflen, "%s", dlinfo.dli_fname); |
|
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1954 } |
|
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1955 if (dlinfo.dli_fbase != NULL && offset != NULL) { |
|
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1956 *offset = addr - (address)dlinfo.dli_fbase; |
|
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|
1957 } |
|
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|
1958 return true; |
|
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|
1959 } |
|
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|
1960 |
|
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|
1961 buf[0] = '\0'; |
|
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1962 if (offset) *offset = -1; |
|
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|
1963 return false; |
| 0 | 1964 } |
| 1965 | |
| 1966 // Prints the names and full paths of all opened dynamic libraries | |
| 1967 // for current process | |
| 1968 void os::print_dll_info(outputStream * st) { | |
|
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|
1969 Dl_info dli; |
|
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|
1970 void *handle; |
|
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|
1971 Link_map *map; |
|
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|
1972 Link_map *p; |
|
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|
1973 |
|
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|
1974 st->print_cr("Dynamic libraries:"); st->flush(); |
|
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|
1975 |
|
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|
1976 if (dladdr(CAST_FROM_FN_PTR(void *, os::print_dll_info), &dli) == 0 || |
|
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|
1977 dli.dli_fname == NULL) { |
|
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|
1978 st->print_cr("Error: Cannot print dynamic libraries."); |
|
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1979 return; |
|
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|
1980 } |
|
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|
1981 handle = dlopen(dli.dli_fname, RTLD_LAZY); |
|
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|
1982 if (handle == NULL) { |
|
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|
1983 st->print_cr("Error: Cannot print dynamic libraries."); |
|
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|
1984 return; |
|
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|
1985 } |
|
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|
1986 dlinfo(handle, RTLD_DI_LINKMAP, &map); |
|
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|
1987 if (map == NULL) { |
|
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|
1988 st->print_cr("Error: Cannot print dynamic libraries."); |
|
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|
1989 return; |
|
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|
1990 } |
|
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|
1991 |
|
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|
1992 while (map->l_prev != NULL) |
|
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|
1993 map = map->l_prev; |
|
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|
1994 |
|
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|
1995 while (map != NULL) { |
|
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|
1996 st->print_cr(PTR_FORMAT " \t%s", map->l_addr, map->l_name); |
|
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|
1997 map = map->l_next; |
|
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|
1998 } |
|
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|
1999 |
|
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|
2000 dlclose(handle); |
| 0 | 2001 } |
| 2002 | |
| 2003 // Loads .dll/.so and | |
| 2004 // in case of error it checks if .dll/.so was built for the | |
| 2005 // same architecture as Hotspot is running on | |
| 2006 | |
| 2007 void * os::dll_load(const char *filename, char *ebuf, int ebuflen) | |
| 2008 { | |
| 2009 void * result= ::dlopen(filename, RTLD_LAZY); | |
| 2010 if (result != NULL) { | |
| 2011 // Successful loading | |
| 2012 return result; | |
| 2013 } | |
| 2014 | |
| 2015 Elf32_Ehdr elf_head; | |
| 2016 | |
| 2017 // Read system error message into ebuf | |
| 2018 // It may or may not be overwritten below | |
| 2019 ::strncpy(ebuf, ::dlerror(), ebuflen-1); | |
| 2020 ebuf[ebuflen-1]='\0'; | |
| 2021 int diag_msg_max_length=ebuflen-strlen(ebuf); | |
| 2022 char* diag_msg_buf=ebuf+strlen(ebuf); | |
| 2023 | |
| 2024 if (diag_msg_max_length==0) { | |
| 2025 // No more space in ebuf for additional diagnostics message | |
| 2026 return NULL; | |
| 2027 } | |
| 2028 | |
| 2029 | |
| 2030 int file_descriptor= ::open(filename, O_RDONLY | O_NONBLOCK); | |
| 2031 | |
| 2032 if (file_descriptor < 0) { | |
| 2033 // Can't open library, report dlerror() message | |
| 2034 return NULL; | |
| 2035 } | |
| 2036 | |
| 2037 bool failed_to_read_elf_head= | |
| 2038 (sizeof(elf_head)!= | |
| 2039 (::read(file_descriptor, &elf_head,sizeof(elf_head)))) ; | |
| 2040 | |
| 2041 ::close(file_descriptor); | |
| 2042 if (failed_to_read_elf_head) { | |
| 2043 // file i/o error - report dlerror() msg | |
| 2044 return NULL; | |
| 2045 } | |
| 2046 | |
| 2047 typedef struct { | |
| 2048 Elf32_Half code; // Actual value as defined in elf.h | |
| 2049 Elf32_Half compat_class; // Compatibility of archs at VM's sense | |
| 2050 char elf_class; // 32 or 64 bit | |
| 2051 char endianess; // MSB or LSB | |
| 2052 char* name; // String representation | |
| 2053 } arch_t; | |
| 2054 | |
| 2055 static const arch_t arch_array[]={ | |
| 2056 {EM_386, EM_386, ELFCLASS32, ELFDATA2LSB, (char*)"IA 32"}, | |
| 2057 {EM_486, EM_386, ELFCLASS32, ELFDATA2LSB, (char*)"IA 32"}, | |
| 2058 {EM_IA_64, EM_IA_64, ELFCLASS64, ELFDATA2LSB, (char*)"IA 64"}, | |
| 2059 {EM_X86_64, EM_X86_64, ELFCLASS64, ELFDATA2LSB, (char*)"AMD 64"}, | |
| 2060 {EM_SPARC, EM_SPARC, ELFCLASS32, ELFDATA2MSB, (char*)"Sparc 32"}, | |
| 2061 {EM_SPARC32PLUS, EM_SPARC, ELFCLASS32, ELFDATA2MSB, (char*)"Sparc 32"}, | |
| 2062 {EM_SPARCV9, EM_SPARCV9, ELFCLASS64, ELFDATA2MSB, (char*)"Sparc v9 64"}, | |
| 2063 {EM_PPC, EM_PPC, ELFCLASS32, ELFDATA2MSB, (char*)"Power PC 32"}, | |
|
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2064 {EM_PPC64, EM_PPC64, ELFCLASS64, ELFDATA2MSB, (char*)"Power PC 64"}, |
|
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|
2065 {EM_ARM, EM_ARM, ELFCLASS32, ELFDATA2LSB, (char*)"ARM 32"} |
| 0 | 2066 }; |
| 2067 | |
| 2068 #if (defined IA32) | |
| 2069 static Elf32_Half running_arch_code=EM_386; | |
| 2070 #elif (defined AMD64) | |
| 2071 static Elf32_Half running_arch_code=EM_X86_64; | |
| 2072 #elif (defined IA64) | |
| 2073 static Elf32_Half running_arch_code=EM_IA_64; | |
| 2074 #elif (defined __sparc) && (defined _LP64) | |
| 2075 static Elf32_Half running_arch_code=EM_SPARCV9; | |
| 2076 #elif (defined __sparc) && (!defined _LP64) | |
| 2077 static Elf32_Half running_arch_code=EM_SPARC; | |
| 2078 #elif (defined __powerpc64__) | |
| 2079 static Elf32_Half running_arch_code=EM_PPC64; | |
| 2080 #elif (defined __powerpc__) | |
| 2081 static Elf32_Half running_arch_code=EM_PPC; | |
|
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|
2082 #elif (defined ARM) |
|
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|
2083 static Elf32_Half running_arch_code=EM_ARM; |
| 0 | 2084 #else |
| 2085 #error Method os::dll_load requires that one of following is defined:\ | |
|
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|
2086 IA32, AMD64, IA64, __sparc, __powerpc__, ARM, ARM |
| 0 | 2087 #endif |
| 2088 | |
| 2089 // Identify compatability class for VM's architecture and library's architecture | |
| 2090 // Obtain string descriptions for architectures | |
| 2091 | |
| 2092 arch_t lib_arch={elf_head.e_machine,0,elf_head.e_ident[EI_CLASS], elf_head.e_ident[EI_DATA], NULL}; | |
| 2093 int running_arch_index=-1; | |
| 2094 | |
| 2095 for (unsigned int i=0 ; i < ARRAY_SIZE(arch_array) ; i++ ) { | |
| 2096 if (running_arch_code == arch_array[i].code) { | |
| 2097 running_arch_index = i; | |
| 2098 } | |
| 2099 if (lib_arch.code == arch_array[i].code) { | |
| 2100 lib_arch.compat_class = arch_array[i].compat_class; | |
| 2101 lib_arch.name = arch_array[i].name; | |
| 2102 } | |
| 2103 } | |
| 2104 | |
| 2105 assert(running_arch_index != -1, | |
| 2106 "Didn't find running architecture code (running_arch_code) in arch_array"); | |
| 2107 if (running_arch_index == -1) { | |
| 2108 // Even though running architecture detection failed | |
| 2109 // we may still continue with reporting dlerror() message | |
| 2110 return NULL; | |
| 2111 } | |
| 2112 | |
| 2113 if (lib_arch.endianess != arch_array[running_arch_index].endianess) { | |
| 2114 ::snprintf(diag_msg_buf, diag_msg_max_length-1," (Possible cause: endianness mismatch)"); | |
| 2115 return NULL; | |
| 2116 } | |
| 2117 | |
| 2118 if (lib_arch.elf_class != arch_array[running_arch_index].elf_class) { | |
| 2119 ::snprintf(diag_msg_buf, diag_msg_max_length-1," (Possible cause: architecture word width mismatch)"); | |
| 2120 return NULL; | |
| 2121 } | |
| 2122 | |
| 2123 if (lib_arch.compat_class != arch_array[running_arch_index].compat_class) { | |
| 2124 if ( lib_arch.name!=NULL ) { | |
| 2125 ::snprintf(diag_msg_buf, diag_msg_max_length-1, | |
| 2126 " (Possible cause: can't load %s-bit .so on a %s-bit platform)", | |
| 2127 lib_arch.name, arch_array[running_arch_index].name); | |
| 2128 } else { | |
| 2129 ::snprintf(diag_msg_buf, diag_msg_max_length-1, | |
| 2130 " (Possible cause: can't load this .so (machine code=0x%x) on a %s-bit platform)", | |
| 2131 lib_arch.code, | |
| 2132 arch_array[running_arch_index].name); | |
| 2133 } | |
| 2134 } | |
| 2135 | |
| 2136 return NULL; | |
| 2137 } | |
| 2138 | |
| 242 | 2139 void* os::dll_lookup(void* handle, const char* name) { |
| 2140 return dlsym(handle, name); | |
| 2141 } | |
| 0 | 2142 |
|
14286
c250880a6673
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
|
2143 void* os::get_default_process_handle() { |
|
c250880a6673
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
|
2144 return (void*)::dlopen(NULL, RTLD_LAZY); |
|
c250880a6673
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
|
2145 } |
|
c250880a6673
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
|
2146 |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2147 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
|
2148 char pathbuf[MAX_PATH]; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2149 if (strlen(path) > MAX_PATH - 1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2150 errno = ENAMETOOLONG; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2151 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2152 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2153 os::native_path(strcpy(pathbuf, path)); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2154 return ::stat(pathbuf, sbuf); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2155 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2156 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2157 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
|
2158 int fd = ::open(filename, O_RDONLY); |
| 0 | 2159 if (fd == -1) { |
| 2160 return false; | |
| 2161 } | |
| 2162 | |
| 2163 char buf[32]; | |
| 2164 int bytes; | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2165 while ((bytes = ::read(fd, buf, sizeof(buf))) > 0) { |
| 0 | 2166 st->print_raw(buf, bytes); |
| 2167 } | |
| 2168 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2169 ::close(fd); |
| 0 | 2170 |
| 2171 return true; | |
| 2172 } | |
| 2173 | |
|
6080
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2174 void os::print_os_info_brief(outputStream* st) { |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2175 os::Solaris::print_distro_info(st); |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2176 |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2177 os::Posix::print_uname_info(st); |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2178 |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2179 os::Solaris::print_libversion_info(st); |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2180 } |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2181 |
| 0 | 2182 void os::print_os_info(outputStream* st) { |
| 2183 st->print("OS:"); | |
| 2184 | |
|
6080
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2185 os::Solaris::print_distro_info(st); |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2186 |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2187 os::Posix::print_uname_info(st); |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2188 |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2189 os::Solaris::print_libversion_info(st); |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2190 |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2191 os::Posix::print_rlimit_info(st); |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2192 |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2193 os::Posix::print_load_average(st); |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2194 } |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2195 |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2196 void os::Solaris::print_distro_info(outputStream* st) { |
| 0 | 2197 if (!_print_ascii_file("/etc/release", st)) { |
|
6080
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2198 st->print("Solaris"); |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2199 } |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2200 st->cr(); |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2201 } |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2202 |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2203 void os::Solaris::print_libversion_info(outputStream* st) { |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2204 if (os::Solaris::T2_libthread()) { |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2205 st->print(" (T2 libthread)"); |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2206 } |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2207 else { |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2208 st->print(" (T1 libthread)"); |
| 0 | 2209 } |
| 2210 st->cr(); | |
|
6080
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
5903
diff
changeset
|
2211 } |
| 0 | 2212 |
| 2213 static bool check_addr0(outputStream* st) { | |
| 2214 jboolean status = false; | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2215 int fd = ::open("/proc/self/map",O_RDONLY); |
| 0 | 2216 if (fd >= 0) { |
| 2217 prmap_t p; | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2218 while(::read(fd, &p, sizeof(p)) > 0) { |
| 0 | 2219 if (p.pr_vaddr == 0x0) { |
| 2220 st->print("Warning: Address: 0x%x, Size: %dK, ",p.pr_vaddr, p.pr_size/1024, p.pr_mapname); | |
| 2221 st->print("Mapped file: %s, ", p.pr_mapname[0] == '\0' ? "None" : p.pr_mapname); | |
| 2222 st->print("Access:"); | |
| 2223 st->print("%s",(p.pr_mflags & MA_READ) ? "r" : "-"); | |
| 2224 st->print("%s",(p.pr_mflags & MA_WRITE) ? "w" : "-"); | |
| 2225 st->print("%s",(p.pr_mflags & MA_EXEC) ? "x" : "-"); | |
| 2226 st->cr(); | |
| 2227 status = true; | |
| 2228 } | |
| 2229 } | |
| 14328 | 2230 ::close(fd); |
| 0 | 2231 } |
| 2232 return status; | |
| 2233 } | |
| 2234 | |
|
3800
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
jcoomes
parents:
3318
diff
changeset
|
2235 void os::pd_print_cpu_info(outputStream* st) { |
|
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
jcoomes
parents:
3318
diff
changeset
|
2236 // Nothing to do for now. |
|
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
jcoomes
parents:
3318
diff
changeset
|
2237 } |
|
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
jcoomes
parents:
3318
diff
changeset
|
2238 |
| 0 | 2239 void os::print_memory_info(outputStream* st) { |
| 2240 st->print("Memory:"); | |
| 2241 st->print(" %dk page", os::vm_page_size()>>10); | |
| 2242 st->print(", physical " UINT64_FORMAT "k", os::physical_memory()>>10); | |
| 2243 st->print("(" UINT64_FORMAT "k free)", os::available_memory() >> 10); | |
| 2244 st->cr(); | |
| 2245 (void) check_addr0(st); | |
| 2246 } | |
| 2247 | |
| 2248 // Taken from /usr/include/sys/machsig.h Supposed to be architecture specific | |
| 2249 // but they're the same for all the solaris architectures that we support. | |
| 2250 const char *ill_names[] = { "ILL0", "ILL_ILLOPC", "ILL_ILLOPN", "ILL_ILLADR", | |
| 2251 "ILL_ILLTRP", "ILL_PRVOPC", "ILL_PRVREG", | |
| 2252 "ILL_COPROC", "ILL_BADSTK" }; | |
| 2253 | |
| 14328 | 2254 const size_t ill_names_length = (sizeof(ill_names)/sizeof(char *)); |
| 2255 | |
| 0 | 2256 const char *fpe_names[] = { "FPE0", "FPE_INTDIV", "FPE_INTOVF", "FPE_FLTDIV", |
| 2257 "FPE_FLTOVF", "FPE_FLTUND", "FPE_FLTRES", | |
| 2258 "FPE_FLTINV", "FPE_FLTSUB" }; | |
| 14328 | 2259 const size_t fpe_names_length = (sizeof(fpe_names)/sizeof(char *)); |
| 0 | 2260 |
| 2261 const char *segv_names[] = { "SEGV0", "SEGV_MAPERR", "SEGV_ACCERR" }; | |
| 14328 | 2262 const size_t segv_names_length = (sizeof(segv_names)/sizeof(char *)); |
| 0 | 2263 |
| 2264 const char *bus_names[] = { "BUS0", "BUS_ADRALN", "BUS_ADRERR", "BUS_OBJERR" }; | |
| 14328 | 2265 const size_t bus_names_length = (sizeof(bus_names)/sizeof(char *)); |
| 0 | 2266 |
| 2267 void os::print_siginfo(outputStream* st, void* siginfo) { | |
| 2268 st->print("siginfo:"); | |
| 2269 | |
| 2270 const int buflen = 100; | |
| 2271 char buf[buflen]; | |
| 2272 siginfo_t *si = (siginfo_t*)siginfo; | |
| 2273 st->print("si_signo=%s: ", os::exception_name(si->si_signo, buf, buflen)); | |
| 2274 char *err = strerror(si->si_errno); | |
| 2275 if (si->si_errno != 0 && err != NULL) { | |
| 2276 st->print("si_errno=%s", err); | |
| 2277 } else { | |
| 2278 st->print("si_errno=%d", si->si_errno); | |
| 2279 } | |
| 2280 const int c = si->si_code; | |
| 2281 assert(c > 0, "unexpected si_code"); | |
| 2282 switch (si->si_signo) { | |
| 2283 case SIGILL: | |
| 14328 | 2284 st->print(", si_code=%d (%s)", c, |
| 2285 c >= ill_names_length ? "" : ill_names[c]); | |
| 0 | 2286 st->print(", si_addr=" PTR_FORMAT, si->si_addr); |
| 2287 break; | |
| 2288 case SIGFPE: | |
| 14328 | 2289 st->print(", si_code=%d (%s)", c, |
| 2290 c >= fpe_names_length ? "" : fpe_names[c]); | |
| 0 | 2291 st->print(", si_addr=" PTR_FORMAT, si->si_addr); |
| 2292 break; | |
| 2293 case SIGSEGV: | |
| 14328 | 2294 st->print(", si_code=%d (%s)", c, |
| 2295 c >= segv_names_length ? "" : segv_names[c]); | |
| 0 | 2296 st->print(", si_addr=" PTR_FORMAT, si->si_addr); |
| 2297 break; | |
| 2298 case SIGBUS: | |
| 14328 | 2299 st->print(", si_code=%d (%s)", c, |
| 2300 c >= bus_names_length ? "" : bus_names[c]); | |
| 0 | 2301 st->print(", si_addr=" PTR_FORMAT, si->si_addr); |
| 2302 break; | |
| 2303 default: | |
| 2304 st->print(", si_code=%d", si->si_code); | |
| 2305 // no si_addr | |
| 2306 } | |
| 2307 | |
| 2308 if ((si->si_signo == SIGBUS || si->si_signo == SIGSEGV) && | |
| 2309 UseSharedSpaces) { | |
| 2310 FileMapInfo* mapinfo = FileMapInfo::current_info(); | |
| 2311 if (mapinfo->is_in_shared_space(si->si_addr)) { | |
| 2312 st->print("\n\nError accessing class data sharing archive." \ | |
| 2313 " Mapped file inaccessible during execution, " \ | |
| 2314 " possible disk/network problem."); | |
| 2315 } | |
| 2316 } | |
| 2317 st->cr(); | |
| 2318 } | |
| 2319 | |
| 2320 // Moved from whole group, because we need them here for diagnostic | |
| 2321 // prints. | |
| 2322 #define OLDMAXSIGNUM 32 | |
| 2323 static int Maxsignum = 0; | |
| 2324 static int *ourSigFlags = NULL; | |
| 2325 | |
| 2326 extern "C" void sigINTRHandler(int, siginfo_t*, void*); | |
| 2327 | |
| 2328 int os::Solaris::get_our_sigflags(int sig) { | |
| 2329 assert(ourSigFlags!=NULL, "signal data structure not initialized"); | |
| 2330 assert(sig > 0 && sig < Maxsignum, "vm signal out of expected range"); | |
| 2331 return ourSigFlags[sig]; | |
| 2332 } | |
| 2333 | |
| 2334 void os::Solaris::set_our_sigflags(int sig, int flags) { | |
| 2335 assert(ourSigFlags!=NULL, "signal data structure not initialized"); | |
| 2336 assert(sig > 0 && sig < Maxsignum, "vm signal out of expected range"); | |
| 2337 ourSigFlags[sig] = flags; | |
| 2338 } | |
| 2339 | |
| 2340 | |
| 2341 static const char* get_signal_handler_name(address handler, | |
| 2342 char* buf, int buflen) { | |
| 2343 int offset; | |
| 2344 bool found = os::dll_address_to_library_name(handler, buf, buflen, &offset); | |
| 2345 if (found) { | |
| 2346 // skip directory names | |
| 2347 const char *p1, *p2; | |
| 2348 p1 = buf; | |
| 2349 size_t len = strlen(os::file_separator()); | |
| 2350 while ((p2 = strstr(p1, os::file_separator())) != NULL) p1 = p2 + len; | |
| 2351 jio_snprintf(buf, buflen, "%s+0x%x", p1, offset); | |
| 2352 } else { | |
| 2353 jio_snprintf(buf, buflen, PTR_FORMAT, handler); | |
| 2354 } | |
| 2355 return buf; | |
| 2356 } | |
| 2357 | |
| 2358 static void print_signal_handler(outputStream* st, int sig, | |
| 2359 char* buf, size_t buflen) { | |
| 2360 struct sigaction sa; | |
| 2361 | |
| 2362 sigaction(sig, NULL, &sa); | |
| 2363 | |
| 2364 st->print("%s: ", os::exception_name(sig, buf, buflen)); | |
| 2365 | |
| 2366 address handler = (sa.sa_flags & SA_SIGINFO) | |
| 2367 ? CAST_FROM_FN_PTR(address, sa.sa_sigaction) | |
| 2368 : CAST_FROM_FN_PTR(address, sa.sa_handler); | |
| 2369 | |
| 2370 if (handler == CAST_FROM_FN_PTR(address, SIG_DFL)) { | |
| 2371 st->print("SIG_DFL"); | |
| 2372 } else if (handler == CAST_FROM_FN_PTR(address, SIG_IGN)) { | |
| 2373 st->print("SIG_IGN"); | |
| 2374 } else { | |
| 2375 st->print("[%s]", get_signal_handler_name(handler, buf, buflen)); | |
| 2376 } | |
| 2377 | |
| 2378 st->print(", sa_mask[0]=" PTR32_FORMAT, *(uint32_t*)&sa.sa_mask); | |
| 2379 | |
| 2380 address rh = VMError::get_resetted_sighandler(sig); | |
| 2381 // May be, handler was resetted by VMError? | |
| 2382 if(rh != NULL) { | |
| 2383 handler = rh; | |
| 2384 sa.sa_flags = VMError::get_resetted_sigflags(sig); | |
| 2385 } | |
| 2386 | |
| 2387 st->print(", sa_flags=" PTR32_FORMAT, sa.sa_flags); | |
| 2388 | |
| 2389 // Check: is it our handler? | |
| 2390 if(handler == CAST_FROM_FN_PTR(address, signalHandler) || | |
| 2391 handler == CAST_FROM_FN_PTR(address, sigINTRHandler)) { | |
| 2392 // It is our signal handler | |
| 2393 // check for flags | |
| 2394 if(sa.sa_flags != os::Solaris::get_our_sigflags(sig)) { | |
| 2395 st->print( | |
| 2396 ", flags was changed from " PTR32_FORMAT ", consider using jsig library", | |
| 2397 os::Solaris::get_our_sigflags(sig)); | |
| 2398 } | |
| 2399 } | |
| 2400 st->cr(); | |
| 2401 } | |
| 2402 | |
| 2403 void os::print_signal_handlers(outputStream* st, char* buf, size_t buflen) { | |
| 2404 st->print_cr("Signal Handlers:"); | |
| 2405 print_signal_handler(st, SIGSEGV, buf, buflen); | |
| 2406 print_signal_handler(st, SIGBUS , buf, buflen); | |
| 2407 print_signal_handler(st, SIGFPE , buf, buflen); | |
| 2408 print_signal_handler(st, SIGPIPE, buf, buflen); | |
| 2409 print_signal_handler(st, SIGXFSZ, buf, buflen); | |
| 2410 print_signal_handler(st, SIGILL , buf, buflen); | |
| 2411 print_signal_handler(st, INTERRUPT_SIGNAL, buf, buflen); | |
| 2412 print_signal_handler(st, ASYNC_SIGNAL, buf, buflen); | |
| 2413 print_signal_handler(st, BREAK_SIGNAL, buf, buflen); | |
| 2414 print_signal_handler(st, SHUTDOWN1_SIGNAL , buf, buflen); | |
| 2415 print_signal_handler(st, SHUTDOWN2_SIGNAL , buf, buflen); | |
| 2416 print_signal_handler(st, SHUTDOWN3_SIGNAL, buf, buflen); | |
| 2417 print_signal_handler(st, os::Solaris::SIGinterrupt(), buf, buflen); | |
| 2418 print_signal_handler(st, os::Solaris::SIGasync(), buf, buflen); | |
| 2419 } | |
| 2420 | |
| 2421 static char saved_jvm_path[MAXPATHLEN] = { 0 }; | |
| 2422 | |
|
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8005044: remove crufty '_g' support from HS runtime code
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7206
diff
changeset
|
2423 // Find the full path to the current module, libjvm.so |
| 0 | 2424 void os::jvm_path(char *buf, jint buflen) { |
| 2425 // Error checking. | |
| 2426 if (buflen < MAXPATHLEN) { | |
| 2427 assert(false, "must use a large-enough buffer"); | |
| 2428 buf[0] = '\0'; | |
| 2429 return; | |
| 2430 } | |
| 2431 // Lazy resolve the path to current module. | |
| 2432 if (saved_jvm_path[0] != 0) { | |
| 2433 strcpy(buf, saved_jvm_path); | |
| 2434 return; | |
| 2435 } | |
| 2436 | |
| 2437 Dl_info dlinfo; | |
| 2438 int ret = dladdr(CAST_FROM_FN_PTR(void *, os::jvm_path), &dlinfo); | |
| 2439 assert(ret != 0, "cannot locate libjvm"); | |
|
11092
59b052799158
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10986
diff
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|
2440 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
|
2441 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
|
2442 } else { |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
2443 buf[0] = '\0'; |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
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10986
diff
changeset
|
2444 return; |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
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parents:
10986
diff
changeset
|
2445 } |
| 0 | 2446 |
|
14317
b59507f713e0
8027113: decouple the '-XXaltjvm=<path>' option from the gamma launcher
rdurbin
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14291
diff
changeset
|
2447 if (Arguments::sun_java_launcher_is_altjvm()) { |
|
b59507f713e0
8027113: decouple the '-XXaltjvm=<path>' option from the gamma launcher
rdurbin
parents:
14291
diff
changeset
|
2448 // Support for the java launcher's '-XXaltjvm=<path>' option. Typical |
|
b59507f713e0
8027113: decouple the '-XXaltjvm=<path>' option from the gamma launcher
rdurbin
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14291
diff
changeset
|
2449 // value for buf is "<JAVA_HOME>/jre/lib/<arch>/<vmtype>/libjvm.so". |
|
b59507f713e0
8027113: decouple the '-XXaltjvm=<path>' option from the gamma launcher
rdurbin
parents:
14291
diff
changeset
|
2450 // If "/jre/lib/" appears at the right place in the string, then |
|
b59507f713e0
8027113: decouple the '-XXaltjvm=<path>' option from the gamma launcher
rdurbin
parents:
14291
diff
changeset
|
2451 // assume we are installed in a JDK and we're done. Otherwise, check |
|
b59507f713e0
8027113: decouple the '-XXaltjvm=<path>' option from the gamma launcher
rdurbin
parents:
14291
diff
changeset
|
2452 // for a JAVA_HOME environment variable and fix up the path so it |
|
b59507f713e0
8027113: decouple the '-XXaltjvm=<path>' option from the gamma launcher
rdurbin
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14291
diff
changeset
|
2453 // looks like libjvm.so is installed there (append a fake suffix |
|
b59507f713e0
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14291
diff
changeset
|
2454 // hotspot/libjvm.so). |
| 0 | 2455 const char *p = buf + strlen(buf) - 1; |
| 2456 for (int count = 0; p > buf && count < 5; ++count) { | |
| 2457 for (--p; p > buf && *p != '/'; --p) | |
| 2458 /* empty */ ; | |
| 2459 } | |
| 2460 | |
| 2461 if (strncmp(p, "/jre/lib/", 9) != 0) { | |
| 2462 // Look for JAVA_HOME in the environment. | |
| 2463 char* java_home_var = ::getenv("JAVA_HOME"); | |
| 2464 if (java_home_var != NULL && java_home_var[0] != 0) { | |
| 2465 char cpu_arch[12]; | |
| 1642 | 2466 char* jrelib_p; |
| 2467 int len; | |
| 0 | 2468 sysinfo(SI_ARCHITECTURE, cpu_arch, sizeof(cpu_arch)); |
| 2469 #ifdef _LP64 | |
| 2470 // If we are on sparc running a 64-bit vm, look in jre/lib/sparcv9. | |
| 2471 if (strcmp(cpu_arch, "sparc") == 0) { | |
| 2472 strcat(cpu_arch, "v9"); | |
| 2473 } else if (strcmp(cpu_arch, "i386") == 0) { | |
| 2474 strcpy(cpu_arch, "amd64"); | |
| 2475 } | |
| 2476 #endif | |
|
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7206
diff
changeset
|
2477 // Check the current module name "libjvm.so". |
| 0 | 2478 p = strrchr(buf, '/'); |
| 2479 assert(strstr(p, "/libjvm") == p, "invalid library name"); | |
| 2480 | |
| 2481 realpath(java_home_var, buf); | |
| 1642 | 2482 // determine if this is a legacy image or modules image |
| 2483 // modules image doesn't have "jre" subdirectory | |
| 2484 len = strlen(buf); | |
| 2485 jrelib_p = buf + len; | |
| 2486 snprintf(jrelib_p, buflen-len, "/jre/lib/%s", cpu_arch); | |
| 2487 if (0 != access(buf, F_OK)) { | |
| 2488 snprintf(jrelib_p, buflen-len, "/lib/%s", cpu_arch); | |
| 2489 } | |
| 2490 | |
| 0 | 2491 if (0 == access(buf, F_OK)) { |
|
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7206
diff
changeset
|
2492 // Use current module name "libjvm.so" |
| 1642 | 2493 len = strlen(buf); |
|
7456
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7206
diff
changeset
|
2494 snprintf(buf + len, buflen-len, "/hotspot/libjvm.so"); |
| 0 | 2495 } else { |
| 2496 // Go back to path of .so | |
| 2497 realpath((char *)dlinfo.dli_fname, buf); | |
| 2498 } | |
| 2499 } | |
| 2500 } | |
| 2501 } | |
| 2502 | |
| 2503 strcpy(saved_jvm_path, buf); | |
| 2504 } | |
| 2505 | |
| 2506 | |
| 2507 void os::print_jni_name_prefix_on(outputStream* st, int args_size) { | |
| 2508 // no prefix required, not even "_" | |
| 2509 } | |
| 2510 | |
| 2511 | |
| 2512 void os::print_jni_name_suffix_on(outputStream* st, int args_size) { | |
| 2513 // no suffix required | |
| 2514 } | |
| 2515 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2516 // This method is a copy of JDK's sysGetLastErrorString |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2517 // from src/solaris/hpi/src/system_md.c |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2518 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
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diff
changeset
|
2519 size_t os::lasterror(char *buf, size_t len) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2520 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2521 if (errno == 0) return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2522 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
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diff
changeset
|
2523 const char *s = ::strerror(errno); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2524 size_t n = ::strlen(s); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2525 if (n >= len) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2526 n = len - 1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2527 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2528 ::strncpy(buf, s, n); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2529 buf[n] = '\0'; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2530 return n; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2531 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2532 |
| 0 | 2533 |
| 2534 // sun.misc.Signal | |
| 2535 | |
| 2536 extern "C" { | |
| 2537 static void UserHandler(int sig, void *siginfo, void *context) { | |
| 2538 // Ctrl-C is pressed during error reporting, likely because the error | |
| 2539 // handler fails to abort. Let VM die immediately. | |
| 2540 if (sig == SIGINT && is_error_reported()) { | |
| 2541 os::die(); | |
| 2542 } | |
| 2543 | |
| 2544 os::signal_notify(sig); | |
| 2545 // We do not need to reinstate the signal handler each time... | |
| 2546 } | |
| 2547 } | |
| 2548 | |
| 2549 void* os::user_handler() { | |
| 2550 return CAST_FROM_FN_PTR(void*, UserHandler); | |
| 2551 } | |
| 2552 | |
| 10405 | 2553 class Semaphore : public StackObj { |
| 2554 public: | |
| 2555 Semaphore(); | |
| 2556 ~Semaphore(); | |
| 2557 void signal(); | |
| 2558 void wait(); | |
| 2559 bool trywait(); | |
| 2560 bool timedwait(unsigned int sec, int nsec); | |
| 2561 private: | |
| 2562 sema_t _semaphore; | |
| 2563 }; | |
| 2564 | |
| 2565 | |
| 2566 Semaphore::Semaphore() { | |
| 2567 sema_init(&_semaphore, 0, NULL, NULL); | |
| 2568 } | |
| 2569 | |
| 2570 Semaphore::~Semaphore() { | |
| 2571 sema_destroy(&_semaphore); | |
| 2572 } | |
| 2573 | |
| 2574 void Semaphore::signal() { | |
| 2575 sema_post(&_semaphore); | |
| 2576 } | |
| 2577 | |
| 2578 void Semaphore::wait() { | |
| 2579 sema_wait(&_semaphore); | |
| 2580 } | |
| 2581 | |
| 2582 bool Semaphore::trywait() { | |
| 2583 return sema_trywait(&_semaphore) == 0; | |
| 2584 } | |
| 2585 | |
| 2586 bool Semaphore::timedwait(unsigned int sec, int nsec) { | |
| 2587 struct timespec ts; | |
| 2588 unpackTime(&ts, false, (sec * NANOSECS_PER_SEC) + nsec); | |
| 2589 | |
| 2590 while (1) { | |
| 2591 int result = sema_timedwait(&_semaphore, &ts); | |
| 2592 if (result == 0) { | |
| 2593 return true; | |
| 2594 } else if (errno == EINTR) { | |
| 2595 continue; | |
| 2596 } else if (errno == ETIME) { | |
| 2597 return false; | |
| 2598 } else { | |
| 2599 return false; | |
| 2600 } | |
| 2601 } | |
| 2602 } | |
| 2603 | |
| 0 | 2604 extern "C" { |
| 2605 typedef void (*sa_handler_t)(int); | |
| 2606 typedef void (*sa_sigaction_t)(int, siginfo_t *, void *); | |
| 2607 } | |
| 2608 | |
| 2609 void* os::signal(int signal_number, void* handler) { | |
| 2610 struct sigaction sigAct, oldSigAct; | |
| 2611 sigfillset(&(sigAct.sa_mask)); | |
| 2612 sigAct.sa_flags = SA_RESTART & ~SA_RESETHAND; | |
| 2613 sigAct.sa_handler = CAST_TO_FN_PTR(sa_handler_t, handler); | |
| 2614 | |
| 2615 if (sigaction(signal_number, &sigAct, &oldSigAct)) | |
| 2616 // -1 means registration failed | |
| 2617 return (void *)-1; | |
| 2618 | |
| 2619 return CAST_FROM_FN_PTR(void*, oldSigAct.sa_handler); | |
| 2620 } | |
| 2621 | |
| 2622 void os::signal_raise(int signal_number) { | |
| 2623 raise(signal_number); | |
| 2624 } | |
| 2625 | |
| 2626 /* | |
| 2627 * The following code is moved from os.cpp for making this | |
| 2628 * code platform specific, which it is by its very nature. | |
| 2629 */ | |
| 2630 | |
| 2631 // a counter for each possible signal value | |
| 2632 static int Sigexit = 0; | |
| 2633 static int Maxlibjsigsigs; | |
| 2634 static jint *pending_signals = NULL; | |
| 2635 static int *preinstalled_sigs = NULL; | |
| 2636 static struct sigaction *chainedsigactions = NULL; | |
| 2637 static sema_t sig_sem; | |
| 2638 typedef int (*version_getting_t)(); | |
| 2639 version_getting_t os::Solaris::get_libjsig_version = NULL; | |
| 2640 static int libjsigversion = NULL; | |
| 2641 | |
| 2642 int os::sigexitnum_pd() { | |
| 2643 assert(Sigexit > 0, "signal memory not yet initialized"); | |
| 2644 return Sigexit; | |
| 2645 } | |
| 2646 | |
| 2647 void os::Solaris::init_signal_mem() { | |
| 2648 // Initialize signal structures | |
| 2649 Maxsignum = SIGRTMAX; | |
| 2650 Sigexit = Maxsignum+1; | |
| 2651 assert(Maxsignum >0, "Unable to obtain max signal number"); | |
| 2652 | |
| 2653 Maxlibjsigsigs = Maxsignum; | |
| 2654 | |
| 2655 // pending_signals has one int per signal | |
| 2656 // The additional signal is for SIGEXIT - exit signal to signal_thread | |
| 6197 | 2657 pending_signals = (jint *)os::malloc(sizeof(jint) * (Sigexit+1), mtInternal); |
| 0 | 2658 memset(pending_signals, 0, (sizeof(jint) * (Sigexit+1))); |
| 2659 | |
| 2660 if (UseSignalChaining) { | |
| 2661 chainedsigactions = (struct sigaction *)malloc(sizeof(struct sigaction) | |
| 6197 | 2662 * (Maxsignum + 1), mtInternal); |
| 0 | 2663 memset(chainedsigactions, 0, (sizeof(struct sigaction) * (Maxsignum + 1))); |
| 6197 | 2664 preinstalled_sigs = (int *)os::malloc(sizeof(int) * (Maxsignum + 1), mtInternal); |
| 0 | 2665 memset(preinstalled_sigs, 0, (sizeof(int) * (Maxsignum + 1))); |
| 2666 } | |
| 6197 | 2667 ourSigFlags = (int*)malloc(sizeof(int) * (Maxsignum + 1 ), mtInternal); |
| 0 | 2668 memset(ourSigFlags, 0, sizeof(int) * (Maxsignum + 1)); |
| 2669 } | |
| 2670 | |
| 2671 void os::signal_init_pd() { | |
| 2672 int ret; | |
| 2673 | |
| 2674 ret = ::sema_init(&sig_sem, 0, NULL, NULL); | |
| 2675 assert(ret == 0, "sema_init() failed"); | |
| 2676 } | |
| 2677 | |
| 2678 void os::signal_notify(int signal_number) { | |
| 2679 int ret; | |
| 2680 | |
| 2681 Atomic::inc(&pending_signals[signal_number]); | |
| 2682 ret = ::sema_post(&sig_sem); | |
| 2683 assert(ret == 0, "sema_post() failed"); | |
| 2684 } | |
| 2685 | |
| 2686 static int check_pending_signals(bool wait_for_signal) { | |
| 2687 int ret; | |
| 2688 while (true) { | |
| 2689 for (int i = 0; i < Sigexit + 1; i++) { | |
| 2690 jint n = pending_signals[i]; | |
| 2691 if (n > 0 && n == Atomic::cmpxchg(n - 1, &pending_signals[i], n)) { | |
| 2692 return i; | |
| 2693 } | |
| 2694 } | |
| 2695 if (!wait_for_signal) { | |
| 2696 return -1; | |
| 2697 } | |
| 2698 JavaThread *thread = JavaThread::current(); | |
| 2699 ThreadBlockInVM tbivm(thread); | |
| 2700 | |
| 2701 bool threadIsSuspended; | |
| 2702 do { | |
| 2703 thread->set_suspend_equivalent(); | |
| 2704 // cleared by handle_special_suspend_equivalent_condition() or java_suspend_self() | |
| 2705 while((ret = ::sema_wait(&sig_sem)) == EINTR) | |
| 2706 ; | |
| 2707 assert(ret == 0, "sema_wait() failed"); | |
| 2708 | |
| 2709 // were we externally suspended while we were waiting? | |
| 2710 threadIsSuspended = thread->handle_special_suspend_equivalent_condition(); | |
| 2711 if (threadIsSuspended) { | |
| 2712 // | |
| 2713 // The semaphore has been incremented, but while we were waiting | |
| 2714 // another thread suspended us. We don't want to continue running | |
| 2715 // while suspended because that would surprise the thread that | |
| 2716 // suspended us. | |
| 2717 // | |
| 2718 ret = ::sema_post(&sig_sem); | |
| 2719 assert(ret == 0, "sema_post() failed"); | |
| 2720 | |
| 2721 thread->java_suspend_self(); | |
| 2722 } | |
| 2723 } while (threadIsSuspended); | |
| 2724 } | |
| 2725 } | |
| 2726 | |
| 2727 int os::signal_lookup() { | |
| 2728 return check_pending_signals(false); | |
| 2729 } | |
| 2730 | |
| 2731 int os::signal_wait() { | |
| 2732 return check_pending_signals(true); | |
| 2733 } | |
| 2734 | |
| 2735 //////////////////////////////////////////////////////////////////////////////// | |
| 2736 // Virtual Memory | |
| 2737 | |
| 2738 static int page_size = -1; | |
| 2739 | |
| 2740 // The mmap MAP_ALIGN flag is supported on Solaris 9 and later. init_2() will | |
| 2741 // clear this var if support is not available. | |
| 2742 static bool has_map_align = true; | |
| 2743 | |
| 2744 int os::vm_page_size() { | |
| 2745 assert(page_size != -1, "must call os::init"); | |
| 2746 return page_size; | |
| 2747 } | |
| 2748 | |
| 2749 // Solaris allocates memory by pages. | |
| 2750 int os::vm_allocation_granularity() { | |
| 2751 assert(page_size != -1, "must call os::init"); | |
| 2752 return page_size; | |
| 2753 } | |
| 2754 | |
|
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2755 static bool recoverable_mmap_error(int err) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2756 // See if the error is one we can let the caller handle. This |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2757 // 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
changeset
|
2758 switch (err) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2759 case EBADF: |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2760 case EINVAL: |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2761 case ENOTSUP: |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2762 // let the caller deal with these errors |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2763 return true; |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2764 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2765 default: |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2766 // Any remaining errors on this OS can cause our reserved mapping |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2767 // to be lost. That can cause confusion where different data |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2768 // structures think they have the same memory mapped. The worst |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2769 // scenario is if both the VM and a library think they have the |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
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diff
changeset
|
2770 // same memory mapped. |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
2771 return false; |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
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diff
changeset
|
2772 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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parents:
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diff
changeset
|
2773 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
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diff
changeset
|
2774 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2775 static void warn_fail_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
|
2776 int err) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
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diff
changeset
|
2777 warning("INFO: os::commit_memory(" PTR_FORMAT ", " SIZE_FORMAT |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
2778 ", %d) failed; error='%s' (errno=%d)", addr, bytes, exec, |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
2779 strerror(err), err); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
2780 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
2781 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
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diff
changeset
|
2782 static void warn_fail_commit_memory(char* addr, size_t bytes, |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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parents:
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diff
changeset
|
2783 size_t alignment_hint, bool exec, |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
2784 int err) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
2785 warning("INFO: os::commit_memory(" PTR_FORMAT ", " SIZE_FORMAT |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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parents:
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diff
changeset
|
2786 ", " SIZE_FORMAT ", %d) failed; error='%s' (errno=%d)", addr, bytes, |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2787 alignment_hint, exec, strerror(err), err); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
2788 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
2789 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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parents:
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diff
changeset
|
2790 int os::Solaris::commit_memory_impl(char* addr, size_t bytes, bool exec) { |
| 656 | 2791 int prot = exec ? PROT_READ|PROT_WRITE|PROT_EXEC : PROT_READ|PROT_WRITE; |
| 0 | 2792 size_t size = bytes; |
| 3885 | 2793 char *res = Solaris::mmap_chunk(addr, size, MAP_PRIVATE|MAP_FIXED, prot); |
| 2794 if (res != NULL) { | |
| 2795 if (UseNUMAInterleaving) { | |
| 2796 numa_make_global(addr, bytes); | |
| 2797 } | |
|
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
2798 return 0; |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
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diff
changeset
|
2799 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
2800 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
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diff
changeset
|
2801 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:
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diff
changeset
|
2802 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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parents:
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diff
changeset
|
2803 if (!recoverable_mmap_error(err)) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2804 warn_fail_commit_memory(addr, bytes, exec, err); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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parents:
10405
diff
changeset
|
2805 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:
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diff
changeset
|
2806 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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parents:
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diff
changeset
|
2807 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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parents:
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diff
changeset
|
2808 return err; |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
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diff
changeset
|
2809 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
2810 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
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diff
changeset
|
2811 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
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parents:
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diff
changeset
|
2812 return Solaris::commit_memory_impl(addr, bytes, exec) == 0; |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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parents:
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diff
changeset
|
2813 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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parents:
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diff
changeset
|
2814 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2815 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
|
2816 const char* mesg) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
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diff
changeset
|
2817 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
|
2818 int err = os::Solaris::commit_memory_impl(addr, bytes, exec); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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parents:
10405
diff
changeset
|
2819 if (err != 0) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
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diff
changeset
|
2820 // 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
|
2821 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
|
2822 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
|
2823 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2824 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2825 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2826 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
|
2827 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
|
2828 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
|
2829 if (err == 0) { |
|
11111
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
2830 if (UseLargePages && (alignment_hint > (size_t)vm_page_size())) { |
| 0 | 2831 // If the large page size has been set and the VM |
| 2832 // is using large pages, use the large page size | |
| 2833 // if it is smaller than the alignment hint. This is | |
| 2834 // a case where the VM wants to use a larger alignment size | |
| 2835 // for its own reasons but still want to use large pages | |
| 2836 // (which is what matters to setting the mpss range. | |
| 2837 size_t page_size = 0; | |
| 2838 if (large_page_size() < alignment_hint) { | |
| 2839 assert(UseLargePages, "Expected to be here for large page use only"); | |
| 2840 page_size = large_page_size(); | |
| 2841 } else { | |
| 2842 // If the alignment hint is less than the large page | |
| 2843 // size, the VM wants a particular alignment (thus the hint) | |
| 2844 // for internal reasons. Try to set the mpss range using | |
| 2845 // the alignment_hint. | |
| 2846 page_size = alignment_hint; | |
| 2847 } | |
| 2848 // 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
|
2849 (void)Solaris::setup_large_pages(addr, bytes, page_size); |
| 0 | 2850 } |
|
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2851 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2852 return err; |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2853 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2854 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2855 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
|
2856 bool exec) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2857 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
|
2858 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2859 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2860 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
|
2861 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
|
2862 const char* mesg) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2863 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
|
2864 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
|
2865 if (err != 0) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2866 // 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
|
2867 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
|
2868 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
|
2869 } |
| 0 | 2870 } |
| 2871 | |
| 2872 // Uncommit the pages in a specified region. | |
| 6197 | 2873 void os::pd_free_memory(char* addr, size_t bytes, size_t alignment_hint) { |
| 0 | 2874 if (madvise(addr, bytes, MADV_FREE) < 0) { |
| 2875 debug_only(warning("MADV_FREE failed.")); | |
| 2876 return; | |
| 2877 } | |
| 2878 } | |
| 2879 | |
| 6197 | 2880 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
|
2881 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
|
2882 } |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1123
diff
changeset
|
2883 |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1123
diff
changeset
|
2884 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
|
2885 return os::uncommit_memory(addr, size); |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1123
diff
changeset
|
2886 } |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1123
diff
changeset
|
2887 |
| 0 | 2888 // Change the page size in a given range. |
| 6197 | 2889 void os::pd_realign_memory(char *addr, size_t bytes, size_t alignment_hint) { |
| 0 | 2890 assert((intptr_t)addr % alignment_hint == 0, "Address should be aligned."); |
| 2891 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
|
2892 if (UseLargePages) { |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
2893 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
|
2894 } |
| 0 | 2895 } |
| 2896 | |
| 2897 // Tell the OS to make the range local to the first-touching LWP | |
| 141 | 2898 void os::numa_make_local(char *addr, size_t bytes, int lgrp_hint) { |
| 0 | 2899 assert((intptr_t)addr % os::vm_page_size() == 0, "Address should be page-aligned."); |
| 2900 if (madvise(addr, bytes, MADV_ACCESS_LWP) < 0) { | |
| 2901 debug_only(warning("MADV_ACCESS_LWP failed.")); | |
| 2902 } | |
| 2903 } | |
| 2904 | |
| 2905 // Tell the OS that this range would be accessed from different LWPs. | |
| 2906 void os::numa_make_global(char *addr, size_t bytes) { | |
| 2907 assert((intptr_t)addr % os::vm_page_size() == 0, "Address should be page-aligned."); | |
| 2908 if (madvise(addr, bytes, MADV_ACCESS_MANY) < 0) { | |
| 2909 debug_only(warning("MADV_ACCESS_MANY failed.")); | |
| 2910 } | |
| 2911 } | |
| 2912 | |
| 2913 // Get the number of the locality groups. | |
| 2914 size_t os::numa_get_groups_num() { | |
| 2915 size_t n = Solaris::lgrp_nlgrps(Solaris::lgrp_cookie()); | |
| 2916 return n != -1 ? n : 1; | |
| 2917 } | |
| 2918 | |
| 2919 // Get a list of leaf locality groups. A leaf lgroup is group that | |
| 2920 // doesn't have any children. Typical leaf group is a CPU or a CPU/memory | |
| 2921 // board. An LWP is assigned to one of these groups upon creation. | |
| 2922 size_t os::numa_get_leaf_groups(int *ids, size_t size) { | |
| 2923 if ((ids[0] = Solaris::lgrp_root(Solaris::lgrp_cookie())) == -1) { | |
| 2924 ids[0] = 0; | |
| 2925 return 1; | |
| 2926 } | |
| 2927 int result_size = 0, top = 1, bottom = 0, cur = 0; | |
| 2928 for (int k = 0; k < size; k++) { | |
| 2929 int r = Solaris::lgrp_children(Solaris::lgrp_cookie(), ids[cur], | |
| 2930 (Solaris::lgrp_id_t*)&ids[top], size - top); | |
| 2931 if (r == -1) { | |
| 2932 ids[0] = 0; | |
| 2933 return 1; | |
| 2934 } | |
| 2935 if (!r) { | |
|
144
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
2936 // That's a leaf node. |
| 0 | 2937 assert (bottom <= cur, "Sanity check"); |
|
144
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
2938 // Check if the node has memory |
|
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
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141
diff
changeset
|
2939 if (Solaris::lgrp_resources(Solaris::lgrp_cookie(), ids[cur], |
|
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
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141
diff
changeset
|
2940 NULL, 0, LGRP_RSRC_MEM) > 0) { |
|
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6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
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141
diff
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|
2941 ids[bottom++] = ids[cur]; |
|
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6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
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141
diff
changeset
|
2942 } |
| 0 | 2943 } |
| 2944 top += r; | |
| 2945 cur++; | |
| 2946 } | |
|
268
d6340ab4105b
6723228: NUMA allocator: assert(lgrp_id != -1, "No lgrp_id set")
iveresov
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267
diff
changeset
|
2947 if (bottom == 0) { |
|
d6340ab4105b
6723228: NUMA allocator: assert(lgrp_id != -1, "No lgrp_id set")
iveresov
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267
diff
changeset
|
2948 // Handle a situation, when the OS reports no memory available. |
|
d6340ab4105b
6723228: NUMA allocator: assert(lgrp_id != -1, "No lgrp_id set")
iveresov
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267
diff
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|
2949 // Assume UMA architecture. |
|
d6340ab4105b
6723228: NUMA allocator: assert(lgrp_id != -1, "No lgrp_id set")
iveresov
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267
diff
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|
2950 ids[0] = 0; |
|
d6340ab4105b
6723228: NUMA allocator: assert(lgrp_id != -1, "No lgrp_id set")
iveresov
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267
diff
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|
2951 return 1; |
|
d6340ab4105b
6723228: NUMA allocator: assert(lgrp_id != -1, "No lgrp_id set")
iveresov
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267
diff
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|
2952 } |
| 0 | 2953 return bottom; |
| 2954 } | |
| 2955 | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
144
diff
changeset
|
2956 // Detect the topology change. Typically happens during CPU plugging-unplugging. |
| 0 | 2957 bool os::numa_topology_changed() { |
| 2958 int is_stale = Solaris::lgrp_cookie_stale(Solaris::lgrp_cookie()); | |
| 2959 if (is_stale != -1 && is_stale) { | |
| 2960 Solaris::lgrp_fini(Solaris::lgrp_cookie()); | |
| 2961 Solaris::lgrp_cookie_t c = Solaris::lgrp_init(Solaris::LGRP_VIEW_CALLER); | |
| 2962 assert(c != 0, "Failure to initialize LGRP API"); | |
| 2963 Solaris::set_lgrp_cookie(c); | |
| 2964 return true; | |
| 2965 } | |
| 2966 return false; | |
| 2967 } | |
| 2968 | |
| 2969 // Get the group id of the current LWP. | |
| 2970 int os::numa_get_group_id() { | |
|
144
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iveresov
parents:
141
diff
changeset
|
2971 int lgrp_id = Solaris::lgrp_home(P_LWPID, P_MYID); |
| 0 | 2972 if (lgrp_id == -1) { |
| 2973 return 0; | |
| 2974 } | |
|
144
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6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
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141
diff
changeset
|
2975 const int size = os::numa_get_groups_num(); |
|
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
2976 int *ids = (int*)alloca(size * sizeof(int)); |
|
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
2977 |
|
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
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141
diff
changeset
|
2978 // Get the ids of all lgroups with memory; r is the count. |
|
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
2979 int r = Solaris::lgrp_resources(Solaris::lgrp_cookie(), lgrp_id, |
|
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
2980 (Solaris::lgrp_id_t*)ids, size, LGRP_RSRC_MEM); |
|
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
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parents:
141
diff
changeset
|
2981 if (r <= 0) { |
|
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
2982 return 0; |
|
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
2983 } |
|
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
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141
diff
changeset
|
2984 return ids[os::random() % r]; |
| 0 | 2985 } |
| 2986 | |
| 2987 // Request information about the page. | |
| 2988 bool os::get_page_info(char *start, page_info* info) { | |
| 2989 const uint_t info_types[] = { MEMINFO_VLGRP, MEMINFO_VPAGESIZE }; | |
| 2990 uint64_t addr = (uintptr_t)start; | |
| 2991 uint64_t outdata[2]; | |
| 2992 uint_t validity = 0; | |
| 2993 | |
| 2994 if (os::Solaris::meminfo(&addr, 1, info_types, 2, outdata, &validity) < 0) { | |
| 2995 return false; | |
| 2996 } | |
| 2997 | |
| 2998 info->size = 0; | |
| 2999 info->lgrp_id = -1; | |
| 3000 | |
| 3001 if ((validity & 1) != 0) { | |
| 3002 if ((validity & 2) != 0) { | |
| 3003 info->lgrp_id = outdata[0]; | |
| 3004 } | |
| 3005 if ((validity & 4) != 0) { | |
| 3006 info->size = outdata[1]; | |
| 3007 } | |
| 3008 return true; | |
| 3009 } | |
| 3010 return false; | |
| 3011 } | |
| 3012 | |
| 3013 // Scan the pages from start to end until a page different than | |
| 3014 // the one described in the info parameter is encountered. | |
| 3015 char *os::scan_pages(char *start, char* end, page_info* page_expected, page_info* page_found) { | |
| 3016 const uint_t info_types[] = { MEMINFO_VLGRP, MEMINFO_VPAGESIZE }; | |
| 3017 const size_t types = sizeof(info_types) / sizeof(info_types[0]); | |
| 14328 | 3018 uint64_t addrs[MAX_MEMINFO_CNT], outdata[types * MAX_MEMINFO_CNT + 1]; |
| 0 | 3019 uint_t validity[MAX_MEMINFO_CNT]; |
| 3020 | |
| 3021 size_t page_size = MAX2((size_t)os::vm_page_size(), page_expected->size); | |
| 3022 uint64_t p = (uint64_t)start; | |
| 3023 while (p < (uint64_t)end) { | |
| 3024 addrs[0] = p; | |
| 3025 size_t addrs_count = 1; | |
|
8739
ca9580859cf4
8004697: SIGSEGV on Solaris sparc with -XX:+UseNUMA
stefank
parents:
8067
diff
changeset
|
3026 while (addrs_count < MAX_MEMINFO_CNT && addrs[addrs_count - 1] + page_size < (uint64_t)end) { |
| 0 | 3027 addrs[addrs_count] = addrs[addrs_count - 1] + page_size; |
| 3028 addrs_count++; | |
| 3029 } | |
| 3030 | |
| 3031 if (os::Solaris::meminfo(addrs, addrs_count, info_types, types, outdata, validity) < 0) { | |
| 3032 return NULL; | |
| 3033 } | |
| 3034 | |
| 3035 size_t i = 0; | |
| 3036 for (; i < addrs_count; i++) { | |
| 3037 if ((validity[i] & 1) != 0) { | |
| 3038 if ((validity[i] & 4) != 0) { | |
| 3039 if (outdata[types * i + 1] != page_expected->size) { | |
| 3040 break; | |
| 3041 } | |
| 3042 } else | |
| 3043 if (page_expected->size != 0) { | |
| 3044 break; | |
| 3045 } | |
| 3046 | |
| 3047 if ((validity[i] & 2) != 0 && page_expected->lgrp_id > 0) { | |
| 3048 if (outdata[types * i] != page_expected->lgrp_id) { | |
| 3049 break; | |
| 3050 } | |
| 3051 } | |
| 3052 } else { | |
| 3053 return NULL; | |
| 3054 } | |
| 3055 } | |
| 3056 | |
| 14328 | 3057 if (i < addrs_count) { |
| 0 | 3058 if ((validity[i] & 2) != 0) { |
| 3059 page_found->lgrp_id = outdata[types * i]; | |
| 3060 } else { | |
| 3061 page_found->lgrp_id = -1; | |
| 3062 } | |
| 3063 if ((validity[i] & 4) != 0) { | |
| 3064 page_found->size = outdata[types * i + 1]; | |
| 3065 } else { | |
| 3066 page_found->size = 0; | |
| 3067 } | |
| 3068 return (char*)addrs[i]; | |
| 3069 } | |
| 3070 | |
| 3071 p = addrs[addrs_count - 1] + page_size; | |
| 3072 } | |
| 3073 return end; | |
| 3074 } | |
| 3075 | |
| 6197 | 3076 bool os::pd_uncommit_memory(char* addr, size_t bytes) { |
| 0 | 3077 size_t size = bytes; |
| 3078 // Map uncommitted pages PROT_NONE so we fail early if we touch an | |
| 3079 // uncommitted page. Otherwise, the read/write might succeed if we | |
| 3080 // have enough swap space to back the physical page. | |
| 3081 return | |
| 3082 NULL != Solaris::mmap_chunk(addr, size, | |
| 3083 MAP_PRIVATE|MAP_FIXED|MAP_NORESERVE, | |
| 3084 PROT_NONE); | |
| 3085 } | |
| 3086 | |
| 3087 char* os::Solaris::mmap_chunk(char *addr, size_t size, int flags, int prot) { | |
| 3088 char *b = (char *)mmap(addr, size, prot, flags, os::Solaris::_dev_zero_fd, 0); | |
| 3089 | |
| 3090 if (b == MAP_FAILED) { | |
| 3091 return NULL; | |
| 3092 } | |
| 3093 return b; | |
| 3094 } | |
| 3095 | |
|
60
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3096 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
|
3097 char* addr = requested_addr; |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3098 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
|
3099 |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3100 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
|
3101 |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3102 if (fixed) { |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3103 flags |= MAP_FIXED; |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3104 } else if (has_map_align && (alignment_hint > (size_t) vm_page_size())) { |
| 0 | 3105 flags |= MAP_ALIGN; |
| 3106 addr = (char*) alignment_hint; | |
| 3107 } | |
| 3108 | |
| 3109 // Map uncommitted pages PROT_NONE so we fail early if we touch an | |
| 3110 // uncommitted page. Otherwise, the read/write might succeed if we | |
| 3111 // have enough swap space to back the physical page. | |
|
60
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3112 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
|
3113 } |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3114 |
| 6197 | 3115 char* os::pd_reserve_memory(size_t bytes, char* requested_addr, size_t alignment_hint) { |
|
60
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3116 char* addr = Solaris::anon_mmap(requested_addr, bytes, alignment_hint, (requested_addr != NULL)); |
| 0 | 3117 |
| 3118 guarantee(requested_addr == NULL || requested_addr == addr, | |
| 3119 "OS failed to return requested mmap address."); | |
| 3120 return addr; | |
| 3121 } | |
| 3122 | |
| 3123 // Reserve memory at an arbitrary address, only if that area is | |
| 3124 // available (and not reserved for something else). | |
| 3125 | |
| 6197 | 3126 char* os::pd_attempt_reserve_memory_at(size_t bytes, char* requested_addr) { |
| 0 | 3127 const int max_tries = 10; |
| 3128 char* base[max_tries]; | |
| 3129 size_t size[max_tries]; | |
| 3130 | |
| 3131 // Solaris adds a gap between mmap'ed regions. The size of the gap | |
| 3132 // is dependent on the requested size and the MMU. Our initial gap | |
| 3133 // value here is just a guess and will be corrected later. | |
| 3134 bool had_top_overlap = false; | |
| 3135 bool have_adjusted_gap = false; | |
| 3136 size_t gap = 0x400000; | |
| 3137 | |
| 3138 // Assert only that the size is a multiple of the page size, since | |
| 3139 // that's all that mmap requires, and since that's all we really know | |
| 3140 // about at this low abstraction level. If we need higher alignment, | |
| 3141 // we can either pass an alignment to this method or verify alignment | |
| 3142 // in one of the methods further up the call chain. See bug 5044738. | |
| 3143 assert(bytes % os::vm_page_size() == 0, "reserving unexpected size block"); | |
| 3144 | |
|
60
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3145 // 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
|
3146 // 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
|
3147 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
|
3148 |
|
60
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3149 volatile int err = errno; |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3150 if (addr == requested_addr) { |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3151 return addr; |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3152 } else if (addr != NULL) { |
|
6882
716c64bda5ba
7199092: NMT: NMT needs to deal overlapped virtual memory ranges
zgu
parents:
6854
diff
changeset
|
3153 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
|
3154 } |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3155 |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3156 if (PrintMiscellaneous && Verbose) { |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3157 char buf[256]; |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3158 buf[0] = '\0'; |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3159 if (addr == NULL) { |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3160 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
|
3161 } |
| 2080 | 3162 warning("attempt_reserve_memory_at: couldn't reserve " SIZE_FORMAT " bytes at " |
|
60
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sbohne
parents:
0
diff
changeset
|
3163 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
|
3164 "%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
|
3165 } |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3166 |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3167 // 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
|
3168 // 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
|
3169 // code will no longer be needed. |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3170 // |
| 0 | 3171 // Repeatedly allocate blocks until the block is allocated at the |
| 3172 // right spot. Give up after max_tries. | |
| 3173 int i; | |
| 3174 for (i = 0; i < max_tries; ++i) { | |
| 3175 base[i] = reserve_memory(bytes); | |
| 3176 | |
| 3177 if (base[i] != NULL) { | |
| 3178 // Is this the block we wanted? | |
| 3179 if (base[i] == requested_addr) { | |
| 3180 size[i] = bytes; | |
| 3181 break; | |
| 3182 } | |
| 3183 | |
| 3184 // check that the gap value is right | |
| 3185 if (had_top_overlap && !have_adjusted_gap) { | |
| 3186 size_t actual_gap = base[i-1] - base[i] - bytes; | |
| 3187 if (gap != actual_gap) { | |
| 3188 // adjust the gap value and retry the last 2 allocations | |
| 3189 assert(i > 0, "gap adjustment code problem"); | |
| 3190 have_adjusted_gap = true; // adjust the gap only once, just in case | |
| 3191 gap = actual_gap; | |
| 3192 if (PrintMiscellaneous && Verbose) { | |
| 3193 warning("attempt_reserve_memory_at: adjusted gap to 0x%lx", gap); | |
| 3194 } | |
| 3195 unmap_memory(base[i], bytes); | |
| 3196 unmap_memory(base[i-1], size[i-1]); | |
| 3197 i-=2; | |
| 3198 continue; | |
| 3199 } | |
| 3200 } | |
| 3201 | |
| 3202 // Does this overlap the block we wanted? Give back the overlapped | |
| 3203 // parts and try again. | |
| 3204 // | |
| 3205 // There is still a bug in this code: if top_overlap == bytes, | |
| 3206 // the overlap is offset from requested region by the value of gap. | |
| 3207 // In this case giving back the overlapped part will not work, | |
| 3208 // because we'll give back the entire block at base[i] and | |
| 3209 // therefore the subsequent allocation will not generate a new gap. | |
| 3210 // This could be fixed with a new algorithm that used larger | |
| 3211 // or variable size chunks to find the requested region - | |
| 3212 // but such a change would introduce additional complications. | |
| 3213 // It's rare enough that the planets align for this bug, | |
| 3214 // so we'll just wait for a fix for 6204603/5003415 which | |
| 3215 // will provide a mmap flag to allow us to avoid this business. | |
| 3216 | |
| 3217 size_t top_overlap = requested_addr + (bytes + gap) - base[i]; | |
| 3218 if (top_overlap >= 0 && top_overlap < bytes) { | |
| 3219 had_top_overlap = true; | |
| 3220 unmap_memory(base[i], top_overlap); | |
| 3221 base[i] += top_overlap; | |
| 3222 size[i] = bytes - top_overlap; | |
| 3223 } else { | |
| 3224 size_t bottom_overlap = base[i] + bytes - requested_addr; | |
| 3225 if (bottom_overlap >= 0 && bottom_overlap < bytes) { | |
| 3226 if (PrintMiscellaneous && Verbose && bottom_overlap == 0) { | |
| 3227 warning("attempt_reserve_memory_at: possible alignment bug"); | |
| 3228 } | |
| 3229 unmap_memory(requested_addr, bottom_overlap); | |
| 3230 size[i] = bytes - bottom_overlap; | |
| 3231 } else { | |
| 3232 size[i] = bytes; | |
| 3233 } | |
| 3234 } | |
| 3235 } | |
| 3236 } | |
| 3237 | |
| 3238 // Give back the unused reserved pieces. | |
| 3239 | |
| 3240 for (int j = 0; j < i; ++j) { | |
| 3241 if (base[j] != NULL) { | |
| 3242 unmap_memory(base[j], size[j]); | |
| 3243 } | |
| 3244 } | |
| 3245 | |
| 3246 return (i < max_tries) ? requested_addr : NULL; | |
| 3247 } | |
| 3248 | |
| 6197 | 3249 bool os::pd_release_memory(char* addr, size_t bytes) { |
| 0 | 3250 size_t size = bytes; |
| 3251 return munmap(addr, size) == 0; | |
| 3252 } | |
| 3253 | |
| 3254 static bool solaris_mprotect(char* addr, size_t bytes, int prot) { | |
| 3255 assert(addr == (char*)align_size_down((uintptr_t)addr, os::vm_page_size()), | |
| 3256 "addr must be page aligned"); | |
| 3257 int retVal = mprotect(addr, bytes, prot); | |
| 3258 return retVal == 0; | |
| 3259 } | |
| 3260 | |
|
237
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|
3261 // Protect memory (Used to pass readonly pages through |
| 0 | 3262 // JNI GetArray<type>Elements with empty arrays.) |
|
477
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diff
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|
3263 // Also, used for serialization page and for compressed oops null pointer |
|
24fda36852ce
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|
3264 // checking. |
|
237
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|
3265 bool os::protect_memory(char* addr, size_t bytes, ProtType prot, |
|
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|
3266 bool is_committed) { |
|
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196
diff
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|
3267 unsigned int p = 0; |
|
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196
diff
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|
3268 switch (prot) { |
|
1fdb98a17101
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diff
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|
3269 case MEM_PROT_NONE: p = PROT_NONE; break; |
|
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|
3270 case MEM_PROT_READ: p = PROT_READ; break; |
|
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|
3271 case MEM_PROT_RW: p = PROT_READ|PROT_WRITE; break; |
|
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196
diff
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|
3272 case MEM_PROT_RWX: p = PROT_READ|PROT_WRITE|PROT_EXEC; break; |
|
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|
3273 default: |
|
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|
3274 ShouldNotReachHere(); |
|
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|
3275 } |
|
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|
3276 // is_committed is unused. |
|
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|
3277 return solaris_mprotect(addr, bytes, p); |
| 0 | 3278 } |
| 3279 | |
| 3280 // guard_memory and unguard_memory only happens within stack guard pages. | |
| 3281 // Since ISM pertains only to the heap, guard and unguard memory should not | |
| 3282 /// happen with an ISM region. | |
| 3283 bool os::guard_memory(char* addr, size_t bytes) { | |
| 3284 return solaris_mprotect(addr, bytes, PROT_NONE); | |
| 3285 } | |
| 3286 | |
| 3287 bool os::unguard_memory(char* addr, size_t bytes) { | |
|
477
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462
diff
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|
3288 return solaris_mprotect(addr, bytes, PROT_READ|PROT_WRITE); |
| 0 | 3289 } |
| 3290 | |
| 3291 // Large page support | |
| 3292 static size_t _large_page_size = 0; | |
| 3293 | |
| 3294 // Insertion sort for small arrays (descending order). | |
| 3295 static void insertion_sort_descending(size_t* array, int len) { | |
| 3296 for (int i = 0; i < len; i++) { | |
| 3297 size_t val = array[i]; | |
| 3298 for (size_t key = i; key > 0 && array[key - 1] < val; --key) { | |
| 3299 size_t tmp = array[key]; | |
| 3300 array[key] = array[key - 1]; | |
| 3301 array[key - 1] = tmp; | |
| 3302 } | |
| 3303 } | |
| 3304 } | |
| 3305 | |
|
11111
dec841e0c9aa
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diff
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|
3306 bool os::Solaris::mpss_sanity_check(bool warn, size_t* page_size) { |
| 0 | 3307 const unsigned int usable_count = VM_Version::page_size_count(); |
| 3308 if (usable_count == 1) { | |
| 3309 return false; | |
| 3310 } | |
| 3311 | |
| 3859 | 3312 // Find the right getpagesizes interface. When solaris 11 is the minimum |
| 3313 // build platform, getpagesizes() (without the '2') can be called directly. | |
| 3314 typedef int (*gps_t)(size_t[], int); | |
| 3315 gps_t gps_func = CAST_TO_FN_PTR(gps_t, dlsym(RTLD_DEFAULT, "getpagesizes2")); | |
| 3316 if (gps_func == NULL) { | |
| 3317 gps_func = CAST_TO_FN_PTR(gps_t, dlsym(RTLD_DEFAULT, "getpagesizes")); | |
| 3318 if (gps_func == NULL) { | |
| 3319 if (warn) { | |
| 3320 warning("MPSS is not supported by the operating system."); | |
| 3321 } | |
| 3322 return false; | |
| 3323 } | |
| 3324 } | |
| 3325 | |
| 0 | 3326 // Fill the array of page sizes. |
| 3859 | 3327 int n = (*gps_func)(_page_sizes, page_sizes_max); |
| 0 | 3328 assert(n > 0, "Solaris bug?"); |
| 3859 | 3329 |
| 0 | 3330 if (n == page_sizes_max) { |
| 3331 // Add a sentinel value (necessary only if the array was completely filled | |
| 3332 // since it is static (zeroed at initialization)). | |
| 3333 _page_sizes[--n] = 0; | |
| 3334 DEBUG_ONLY(warning("increase the size of the os::_page_sizes array.");) | |
| 3335 } | |
| 3336 assert(_page_sizes[n] == 0, "missing sentinel"); | |
| 3859 | 3337 trace_page_sizes("available page sizes", _page_sizes, n); |
| 0 | 3338 |
| 3339 if (n == 1) return false; // Only one page size available. | |
| 3340 | |
| 3341 // Skip sizes larger than 4M (or LargePageSizeInBytes if it was set) and | |
| 3342 // select up to usable_count elements. First sort the array, find the first | |
| 3343 // acceptable value, then copy the usable sizes to the top of the array and | |
| 3344 // trim the rest. Make sure to include the default page size :-). | |
| 3345 // | |
| 3346 // A better policy could get rid of the 4M limit by taking the sizes of the | |
| 3347 // important VM memory regions (java heap and possibly the code cache) into | |
| 3348 // account. | |
| 3349 insertion_sort_descending(_page_sizes, n); | |
| 3350 const size_t size_limit = | |
| 3351 FLAG_IS_DEFAULT(LargePageSizeInBytes) ? 4 * M : LargePageSizeInBytes; | |
| 3352 int beg; | |
| 3353 for (beg = 0; beg < n && _page_sizes[beg] > size_limit; ++beg) /* empty */ ; | |
| 3354 const int end = MIN2((int)usable_count, n) - 1; | |
| 3355 for (int cur = 0; cur < end; ++cur, ++beg) { | |
| 3356 _page_sizes[cur] = _page_sizes[beg]; | |
| 3357 } | |
| 3358 _page_sizes[end] = vm_page_size(); | |
| 3359 _page_sizes[end + 1] = 0; | |
| 3360 | |
| 3361 if (_page_sizes[end] > _page_sizes[end - 1]) { | |
| 3362 // Default page size is not the smallest; sort again. | |
| 3363 insertion_sort_descending(_page_sizes, end + 1); | |
| 3364 } | |
| 3365 *page_size = _page_sizes[0]; | |
| 3366 | |
| 3859 | 3367 trace_page_sizes("usable page sizes", _page_sizes, end + 1); |
| 0 | 3368 return true; |
| 3369 } | |
| 3370 | |
|
3318
188c9a5d6a6d
7040485: Use transparent huge page on linux by default
iveresov
parents:
3292
diff
changeset
|
3371 void os::large_page_init() { |
|
11111
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10986
diff
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|
3372 if (UseLargePages) { |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
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|
3373 // 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
|
3374 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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10986
diff
changeset
|
3375 !FLAG_IS_DEFAULT(LargePageSizeInBytes); |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3376 |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3377 UseLargePages = Solaris::mpss_sanity_check(warn_on_failure, &_large_page_size); |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3378 } |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3379 } |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3380 |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3381 bool os::Solaris::setup_large_pages(caddr_t start, size_t bytes, size_t align) { |
| 0 | 3382 // Signal to OS that we want large pages for addresses |
| 3383 // from addr, addr + bytes | |
| 3384 struct memcntl_mha mpss_struct; | |
| 3385 mpss_struct.mha_cmd = MHA_MAPSIZE_VA; | |
| 3386 mpss_struct.mha_pagesize = align; | |
| 3387 mpss_struct.mha_flags = 0; | |
|
11111
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
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parents:
10986
diff
changeset
|
3388 // Upon successful completion, memcntl() returns 0 |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3389 if (memcntl(start, bytes, MC_HAT_ADVISE, (caddr_t) &mpss_struct, 0, 0)) { |
| 0 | 3390 debug_only(warning("Attempt to use MPSS failed.")); |
| 3391 return false; | |
| 3392 } | |
| 3393 return true; | |
| 3394 } | |
| 3395 | |
|
12110
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
11112
diff
changeset
|
3396 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
|
3397 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
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10986
diff
changeset
|
3398 return NULL; |
| 0 | 3399 } |
| 3400 | |
| 3401 bool os::release_memory_special(char* base, size_t bytes) { | |
|
11111
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
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parents:
10986
diff
changeset
|
3402 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
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10986
diff
changeset
|
3403 return false; |
| 0 | 3404 } |
| 3405 | |
| 3406 size_t os::large_page_size() { | |
| 3407 return _large_page_size; | |
| 3408 } | |
| 3409 | |
| 3410 // MPSS allows application to commit large page memory on demand; with ISM | |
| 3411 // the entire memory region must be allocated as shared memory. | |
| 3412 bool os::can_commit_large_page_memory() { | |
|
11111
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8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
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10986
diff
changeset
|
3413 return true; |
| 0 | 3414 } |
| 3415 | |
|
79
82db0859acbe
6642862: Code cache allocation fails with large pages after 6588638
jcoomes
parents:
61
diff
changeset
|
3416 bool os::can_execute_large_page_memory() { |
|
11111
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
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10986
diff
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|
3417 return true; |
|
79
82db0859acbe
6642862: Code cache allocation fails with large pages after 6588638
jcoomes
parents:
61
diff
changeset
|
3418 } |
|
82db0859acbe
6642862: Code cache allocation fails with large pages after 6588638
jcoomes
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61
diff
changeset
|
3419 |
| 0 | 3420 // Read calls from inside the vm need to perform state transitions |
| 3421 size_t os::read(int fd, void *buf, unsigned int nBytes) { | |
| 3422 INTERRUPTIBLE_RETURN_INT_VM(::read(fd, buf, nBytes), os::Solaris::clear_interrupted); | |
| 3423 } | |
| 3424 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
3425 size_t os::restartable_read(int fd, void *buf, unsigned int nBytes) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
3426 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
|
3427 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
3428 |
|
14291
5944dba4badc
8028280: ParkEvent leak when running modified runThese which only loads classes
dsimms
parents:
14286
diff
changeset
|
3429 void os::naked_short_sleep(jlong ms) { |
|
5944dba4badc
8028280: ParkEvent leak when running modified runThese which only loads classes
dsimms
parents:
14286
diff
changeset
|
3430 assert(ms < 1000, "Un-interruptable sleep, short time use only"); |
|
5944dba4badc
8028280: ParkEvent leak when running modified runThese which only loads classes
dsimms
parents:
14286
diff
changeset
|
3431 |
|
5944dba4badc
8028280: ParkEvent leak when running modified runThese which only loads classes
dsimms
parents:
14286
diff
changeset
|
3432 // usleep is deprecated and removed from POSIX, in favour of nanosleep, but |
|
5944dba4badc
8028280: ParkEvent leak when running modified runThese which only loads classes
dsimms
parents:
14286
diff
changeset
|
3433 // Solaris requires -lrt for this. |
|
5944dba4badc
8028280: ParkEvent leak when running modified runThese which only loads classes
dsimms
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14286
diff
changeset
|
3434 usleep((ms * 1000)); |
|
5944dba4badc
8028280: ParkEvent leak when running modified runThese which only loads classes
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14286
diff
changeset
|
3435 |
|
5944dba4badc
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14286
diff
changeset
|
3436 return; |
| 0 | 3437 } |
| 3438 | |
| 3439 // Sleep forever; naked call to OS-specific sleep; use with CAUTION | |
| 3440 void os::infinite_sleep() { | |
| 3441 while (true) { // sleep forever ... | |
| 3442 ::sleep(100); // ... 100 seconds at a time | |
| 3443 } | |
| 3444 } | |
| 3445 | |
| 3446 // Used to convert frequent JVM_Yield() to nops | |
| 3447 bool os::dont_yield() { | |
| 3448 if (DontYieldALot) { | |
| 3449 static hrtime_t last_time = 0; | |
| 3450 hrtime_t diff = getTimeNanos() - last_time; | |
| 3451 | |
| 3452 if (diff < DontYieldALotInterval * 1000000) | |
| 3453 return true; | |
| 3454 | |
| 3455 last_time += diff; | |
| 3456 | |
| 3457 return false; | |
| 3458 } | |
| 3459 else { | |
| 3460 return false; | |
| 3461 } | |
| 3462 } | |
| 3463 | |
| 3464 // Caveat: Solaris os::yield() causes a thread-state transition whereas | |
| 3465 // the linux and win32 implementations do not. This should be checked. | |
| 3466 | |
| 3467 void os::yield() { | |
| 3468 // Yields to all threads with same or greater priority | |
| 3469 os::sleep(Thread::current(), 0, false); | |
| 3470 } | |
| 3471 | |
| 3472 // Note that yield semantics are defined by the scheduling class to which | |
| 3473 // the thread currently belongs. Typically, yield will _not yield to | |
| 3474 // other equal or higher priority threads that reside on the dispatch queues | |
| 3475 // of other CPUs. | |
| 3476 | |
| 3477 os::YieldResult os::NakedYield() { thr_yield(); return os::YIELD_UNKNOWN; } | |
| 3478 | |
| 3479 | |
| 3480 // On Solaris we found that yield_all doesn't always yield to all other threads. | |
| 3481 // There have been cases where there is a thread ready to execute but it doesn't | |
| 3482 // get an lwp as the VM thread continues to spin with sleeps of 1 millisecond. | |
| 3483 // The 1 millisecond wait doesn't seem long enough for the kernel to issue a | |
| 3484 // SIGWAITING signal which will cause a new lwp to be created. So we count the | |
| 3485 // number of times yield_all is called in the one loop and increase the sleep | |
| 3486 // time after 8 attempts. If this fails too we increase the concurrency level | |
| 3487 // so that the starving thread would get an lwp | |
| 3488 | |
| 3489 void os::yield_all(int attempts) { | |
| 3490 // Yields to all threads, including threads with lower priorities | |
| 3491 if (attempts == 0) { | |
| 3492 os::sleep(Thread::current(), 1, false); | |
| 3493 } else { | |
| 3494 int iterations = attempts % 30; | |
| 3495 if (iterations == 0 && !os::Solaris::T2_libthread()) { | |
| 3496 // thr_setconcurrency and _getconcurrency make sense only under T1. | |
| 3497 int noofLWPS = thr_getconcurrency(); | |
| 3498 if (noofLWPS < (Threads::number_of_threads() + 2)) { | |
| 3499 thr_setconcurrency(thr_getconcurrency() + 1); | |
| 3500 } | |
| 3501 } else if (iterations < 25) { | |
| 3502 os::sleep(Thread::current(), 1, false); | |
| 3503 } else { | |
| 3504 os::sleep(Thread::current(), 10, false); | |
| 3505 } | |
| 3506 } | |
| 3507 } | |
| 3508 | |
| 3509 // Called from the tight loops to possibly influence time-sharing heuristics | |
| 3510 void os::loop_breaker(int attempts) { | |
| 3511 os::yield_all(attempts); | |
| 3512 } | |
| 3513 | |
| 3514 | |
| 3515 // Interface for setting lwp priorities. If we are using T2 libthread, | |
| 3516 // which forces the use of BoundThreads or we manually set UseBoundThreads, | |
| 3517 // all of our threads will be assigned to real lwp's. Using the thr_setprio | |
| 3518 // function is meaningless in this mode so we must adjust the real lwp's priority | |
| 3519 // The routines below implement the getting and setting of lwp priorities. | |
| 3520 // | |
| 3521 // Note: There are three priority scales used on Solaris. Java priotities | |
| 3522 // which range from 1 to 10, libthread "thr_setprio" scale which range | |
| 3523 // from 0 to 127, and the current scheduling class of the process we | |
| 3524 // are running in. This is typically from -60 to +60. | |
| 3525 // The setting of the lwp priorities in done after a call to thr_setprio | |
| 3526 // so Java priorities are mapped to libthread priorities and we map from | |
| 3527 // the latter to lwp priorities. We don't keep priorities stored in | |
| 3528 // Java priorities since some of our worker threads want to set priorities | |
| 3529 // higher than all Java threads. | |
| 3530 // | |
| 3531 // For related information: | |
| 3532 // (1) man -s 2 priocntl | |
| 3533 // (2) man -s 4 priocntl | |
| 3534 // (3) man dispadmin | |
| 3535 // = librt.so | |
| 3536 // = libthread/common/rtsched.c - thrp_setlwpprio(). | |
| 3537 // = ps -cL <pid> ... to validate priority. | |
| 3538 // = sched_get_priority_min and _max | |
| 3539 // pthread_create | |
| 3540 // sched_setparam | |
| 3541 // pthread_setschedparam | |
| 3542 // | |
| 3543 // Assumptions: | |
| 3544 // + We assume that all threads in the process belong to the same | |
| 3545 // scheduling class. IE. an homogenous process. | |
| 3546 // + Must be root or in IA group to change change "interactive" attribute. | |
| 3547 // Priocntl() will fail silently. The only indication of failure is when | |
| 3548 // we read-back the value and notice that it hasn't changed. | |
| 3549 // + Interactive threads enter the runq at the head, non-interactive at the tail. | |
| 3550 // + For RT, change timeslice as well. Invariant: | |
| 3551 // constant "priority integral" | |
| 3552 // Konst == TimeSlice * (60-Priority) | |
| 3553 // Given a priority, compute appropriate timeslice. | |
| 3554 // + Higher numerical values have higher priority. | |
| 3555 | |
| 3556 // sched class attributes | |
| 3557 typedef struct { | |
| 3558 int schedPolicy; // classID | |
| 3559 int maxPrio; | |
| 3560 int minPrio; | |
| 3561 } SchedInfo; | |
| 3562 | |
| 3563 | |
|
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|
3564 static SchedInfo tsLimits, iaLimits, rtLimits, fxLimits; |
| 0 | 3565 |
| 3566 #ifdef ASSERT | |
| 3567 static int ReadBackValidate = 1; | |
| 3568 #endif | |
| 3569 static int myClass = 0; | |
| 3570 static int myMin = 0; | |
| 3571 static int myMax = 0; | |
| 3572 static int myCur = 0; | |
| 3573 static bool priocntl_enable = false; | |
| 3574 | |
|
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|
3575 static const int criticalPrio = 60; // FX/60 is critical thread class/priority on T4 |
|
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|
3576 static int java_MaxPriority_to_os_priority = 0; // Saved mapping |
| 0 | 3577 |
| 3578 | |
| 3579 // lwp_priocntl_init | |
| 3580 // | |
| 3581 // Try to determine the priority scale for our process. | |
| 3582 // | |
| 3583 // Return errno or 0 if OK. | |
| 3584 // | |
|
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|
3585 static int lwp_priocntl_init () { |
| 0 | 3586 int rslt; |
| 3587 pcinfo_t ClassInfo; | |
| 3588 pcparms_t ParmInfo; | |
| 3589 int i; | |
| 3590 | |
| 3591 if (!UseThreadPriorities) return 0; | |
| 3592 | |
| 3593 // We are using Bound threads, we need to determine our priority ranges | |
| 3594 if (os::Solaris::T2_libthread() || UseBoundThreads) { | |
| 3595 // If ThreadPriorityPolicy is 1, switch tables | |
| 3596 if (ThreadPriorityPolicy == 1) { | |
|
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|
3597 for (i = 0 ; i < CriticalPriority+1; i++) |
| 0 | 3598 os::java_to_os_priority[i] = prio_policy1[i]; |
| 3599 } | |
|
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|
3600 if (UseCriticalJavaThreadPriority) { |
|
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|
3601 // MaxPriority always maps to the FX scheduling class and criticalPrio. |
|
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|
3602 // See set_native_priority() and set_lwp_class_and_priority(). |
|
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|
3603 // Save original MaxPriority mapping in case attempt to |
|
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|
3604 // use critical priority fails. |
|
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|
3605 java_MaxPriority_to_os_priority = os::java_to_os_priority[MaxPriority]; |
|
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|
3606 // Set negative to distinguish from other priorities |
|
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|
3607 os::java_to_os_priority[MaxPriority] = -criticalPrio; |
|
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|
3608 } |
| 0 | 3609 } |
| 3610 // Not using Bound Threads, set to ThreadPolicy 1 | |
| 3611 else { | |
|
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|
3612 for ( i = 0 ; i < CriticalPriority+1; i++ ) { |
| 0 | 3613 os::java_to_os_priority[i] = prio_policy1[i]; |
| 3614 } | |
| 3615 return 0; | |
| 3616 } | |
| 3617 | |
| 3618 // Get IDs for a set of well-known scheduling classes. | |
| 3619 // TODO-FIXME: GETCLINFO returns the current # of classes in the | |
| 3620 // the system. We should have a loop that iterates over the | |
| 3621 // classID values, which are known to be "small" integers. | |
| 3622 | |
| 3623 strcpy(ClassInfo.pc_clname, "TS"); | |
| 3624 ClassInfo.pc_cid = -1; | |
|
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|
3625 rslt = priocntl(P_ALL, 0, PC_GETCID, (caddr_t)&ClassInfo); |
| 0 | 3626 if (rslt < 0) return errno; |
| 3627 assert(ClassInfo.pc_cid != -1, "cid for TS class is -1"); | |
| 3628 tsLimits.schedPolicy = ClassInfo.pc_cid; | |
| 3629 tsLimits.maxPrio = ((tsinfo_t*)ClassInfo.pc_clinfo)->ts_maxupri; | |
| 3630 tsLimits.minPrio = -tsLimits.maxPrio; | |
| 3631 | |
| 3632 strcpy(ClassInfo.pc_clname, "IA"); | |
| 3633 ClassInfo.pc_cid = -1; | |
|
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|
3634 rslt = priocntl(P_ALL, 0, PC_GETCID, (caddr_t)&ClassInfo); |
| 0 | 3635 if (rslt < 0) return errno; |
| 3636 assert(ClassInfo.pc_cid != -1, "cid for IA class is -1"); | |
| 3637 iaLimits.schedPolicy = ClassInfo.pc_cid; | |
| 3638 iaLimits.maxPrio = ((iainfo_t*)ClassInfo.pc_clinfo)->ia_maxupri; | |
| 3639 iaLimits.minPrio = -iaLimits.maxPrio; | |
| 3640 | |
| 3641 strcpy(ClassInfo.pc_clname, "RT"); | |
| 3642 ClassInfo.pc_cid = -1; | |
|
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|
3643 rslt = priocntl(P_ALL, 0, PC_GETCID, (caddr_t)&ClassInfo); |
| 0 | 3644 if (rslt < 0) return errno; |
| 3645 assert(ClassInfo.pc_cid != -1, "cid for RT class is -1"); | |
| 3646 rtLimits.schedPolicy = ClassInfo.pc_cid; | |
| 3647 rtLimits.maxPrio = ((rtinfo_t*)ClassInfo.pc_clinfo)->rt_maxpri; | |
| 3648 rtLimits.minPrio = 0; | |
| 3649 | |
|
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|
3650 strcpy(ClassInfo.pc_clname, "FX"); |
|
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|
3651 ClassInfo.pc_cid = -1; |
|
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|
3652 rslt = priocntl(P_ALL, 0, PC_GETCID, (caddr_t)&ClassInfo); |
|
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|
3653 if (rslt < 0) return errno; |
|
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|
3654 assert(ClassInfo.pc_cid != -1, "cid for FX class is -1"); |
|
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|
3655 fxLimits.schedPolicy = ClassInfo.pc_cid; |
|
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|
3656 fxLimits.maxPrio = ((fxinfo_t*)ClassInfo.pc_clinfo)->fx_maxupri; |
|
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|
3657 fxLimits.minPrio = 0; |
| 0 | 3658 |
| 3659 // Query our "current" scheduling class. | |
|
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|
3660 // This will normally be IA, TS or, rarely, FX or RT. |
|
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changeset
|
3661 memset(&ParmInfo, 0, sizeof(ParmInfo)); |
| 0 | 3662 ParmInfo.pc_cid = PC_CLNULL; |
|
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|
3663 rslt = priocntl(P_PID, P_MYID, PC_GETPARMS, (caddr_t)&ParmInfo); |
|
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changeset
|
3664 if (rslt < 0) return errno; |
| 0 | 3665 myClass = ParmInfo.pc_cid; |
| 3666 | |
| 3667 // We now know our scheduling classId, get specific information | |
|
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4803
diff
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|
3668 // about the class. |
| 0 | 3669 ClassInfo.pc_cid = myClass; |
| 3670 ClassInfo.pc_clname[0] = 0; | |
|
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|
3671 rslt = priocntl((idtype)0, 0, PC_GETCLINFO, (caddr_t)&ClassInfo); |
|
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4803
diff
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|
3672 if (rslt < 0) return errno; |
|
de268c8a8075
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diff
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|
3673 |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
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4803
diff
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|
3674 if (ThreadPriorityVerbose) { |
|
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4803
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|
3675 tty->print_cr("lwp_priocntl_init: Class=%d(%s)...", myClass, ClassInfo.pc_clname); |
|
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|
3676 } |
| 0 | 3677 |
| 3678 memset(&ParmInfo, 0, sizeof(pcparms_t)); | |
| 3679 ParmInfo.pc_cid = PC_CLNULL; | |
|
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|
3680 rslt = priocntl(P_PID, P_MYID, PC_GETPARMS, (caddr_t)&ParmInfo); |
| 0 | 3681 if (rslt < 0) return errno; |
| 3682 | |
| 3683 if (ParmInfo.pc_cid == rtLimits.schedPolicy) { | |
| 3684 myMin = rtLimits.minPrio; | |
| 3685 myMax = rtLimits.maxPrio; | |
| 3686 } else if (ParmInfo.pc_cid == iaLimits.schedPolicy) { | |
| 3687 iaparms_t *iaInfo = (iaparms_t*)ParmInfo.pc_clparms; | |
| 3688 myMin = iaLimits.minPrio; | |
| 3689 myMax = iaLimits.maxPrio; | |
| 3690 myMax = MIN2(myMax, (int)iaInfo->ia_uprilim); // clamp - restrict | |
| 3691 } else if (ParmInfo.pc_cid == tsLimits.schedPolicy) { | |
| 3692 tsparms_t *tsInfo = (tsparms_t*)ParmInfo.pc_clparms; | |
| 3693 myMin = tsLimits.minPrio; | |
| 3694 myMax = tsLimits.maxPrio; | |
| 3695 myMax = MIN2(myMax, (int)tsInfo->ts_uprilim); // clamp - restrict | |
|
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|
3696 } else if (ParmInfo.pc_cid == fxLimits.schedPolicy) { |
|
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|
3697 fxparms_t *fxInfo = (fxparms_t*)ParmInfo.pc_clparms; |
|
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|
3698 myMin = fxLimits.minPrio; |
|
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|
3699 myMax = fxLimits.maxPrio; |
|
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|
3700 myMax = MIN2(myMax, (int)fxInfo->fx_uprilim); // clamp - restrict |
| 0 | 3701 } else { |
| 3702 // No clue - punt | |
| 3703 if (ThreadPriorityVerbose) | |
| 3704 tty->print_cr ("Unknown scheduling class: %s ... \n", ClassInfo.pc_clname); | |
| 3705 return EINVAL; // no clue, punt | |
| 3706 } | |
| 3707 | |
|
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|
3708 if (ThreadPriorityVerbose) { |
|
de268c8a8075
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|
3709 tty->print_cr ("Thread priority Range: [%d..%d]\n", myMin, myMax); |
|
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|
3710 } |
| 0 | 3711 |
| 3712 priocntl_enable = true; // Enable changing priorities | |
| 3713 return 0; | |
| 3714 } | |
| 3715 | |
| 3716 #define IAPRI(x) ((iaparms_t *)((x).pc_clparms)) | |
| 3717 #define RTPRI(x) ((rtparms_t *)((x).pc_clparms)) | |
| 3718 #define TSPRI(x) ((tsparms_t *)((x).pc_clparms)) | |
|
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|
3719 #define FXPRI(x) ((fxparms_t *)((x).pc_clparms)) |
| 0 | 3720 |
| 3721 | |
| 3722 // scale_to_lwp_priority | |
| 3723 // | |
| 3724 // Convert from the libthread "thr_setprio" scale to our current | |
| 3725 // lwp scheduling class scale. | |
| 3726 // | |
| 3727 static | |
| 3728 int scale_to_lwp_priority (int rMin, int rMax, int x) | |
| 3729 { | |
| 3730 int v; | |
| 3731 | |
| 3732 if (x == 127) return rMax; // avoid round-down | |
| 3733 v = (((x*(rMax-rMin)))/128)+rMin; | |
| 3734 return v; | |
| 3735 } | |
| 3736 | |
| 3737 | |
|
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|
3738 // set_lwp_class_and_priority |
| 0 | 3739 // |
|
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diff
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|
3740 // Set the class and priority of the lwp. This call should only |
|
de268c8a8075
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diff
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|
3741 // be made when using bound threads (T2 threads are bound by default). |
| 0 | 3742 // |
|
4854
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diff
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|
3743 int set_lwp_class_and_priority(int ThreadID, int lwpid, |
|
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diff
changeset
|
3744 int newPrio, int new_class, bool scale) { |
| 0 | 3745 int rslt; |
| 3746 int Actual, Expected, prv; | |
| 3747 pcparms_t ParmInfo; // for GET-SET | |
| 3748 #ifdef ASSERT | |
| 3749 pcparms_t ReadBack; // for readback | |
| 3750 #endif | |
| 3751 | |
| 3752 // Set priority via PC_GETPARMS, update, PC_SETPARMS | |
| 3753 // Query current values. | |
| 3754 // TODO: accelerate this by eliminating the PC_GETPARMS call. | |
| 3755 // Cache "pcparms_t" in global ParmCache. | |
| 3756 // TODO: elide set-to-same-value | |
| 3757 | |
| 3758 // If something went wrong on init, don't change priorities. | |
| 3759 if ( !priocntl_enable ) { | |
| 3760 if (ThreadPriorityVerbose) | |
| 3761 tty->print_cr("Trying to set priority but init failed, ignoring"); | |
| 3762 return EINVAL; | |
| 3763 } | |
| 3764 | |
| 3765 // If lwp hasn't started yet, just return | |
| 3766 // the _start routine will call us again. | |
| 3767 if ( lwpid <= 0 ) { | |
| 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 ("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
|
3770 INTPTR_FORMAT " to %d, lwpid not set", |
| 0 | 3771 ThreadID, newPrio); |
| 3772 } | |
| 3773 return 0; | |
| 3774 } | |
| 3775 | |
| 3776 if (ThreadPriorityVerbose) { | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3777 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
|
3778 INTPTR_FORMAT "@" INTPTR_FORMAT " %d) ", |
| 0 | 3779 ThreadID, lwpid, newPrio); |
| 3780 } | |
| 3781 | |
| 3782 memset(&ParmInfo, 0, sizeof(pcparms_t)); | |
| 3783 ParmInfo.pc_cid = PC_CLNULL; | |
|
11111
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3784 rslt = priocntl(P_LWPID, lwpid, PC_GETPARMS, (caddr_t)&ParmInfo); |
| 0 | 3785 if (rslt < 0) return errno; |
| 3786 | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3787 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
|
3788 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
|
3789 |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3790 if (new_class == rtLimits.schedPolicy) { |
| 0 | 3791 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
|
3792 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
|
3793 rtLimits.maxPrio, newPrio) |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3794 : newPrio; |
| 0 | 3795 rtInfo->rt_tqsecs = RT_NOCHANGE; |
| 3796 rtInfo->rt_tqnsecs = RT_NOCHANGE; | |
| 3797 if (ThreadPriorityVerbose) { | |
| 3798 tty->print_cr("RT: %d->%d\n", newPrio, rtInfo->rt_pri); | |
| 3799 } | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3800 } 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
|
3801 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
|
3802 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
|
3803 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
|
3804 ? (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
|
3805 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
|
3806 maxClamped, newPrio) |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3807 : newPrio; |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3808 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
|
3809 ? IA_NOCHANGE : (pri_t)iaLimits.maxPrio; |
| 0 | 3810 iaInfo->ia_mode = IA_NOCHANGE; |
| 3811 if (ThreadPriorityVerbose) { | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3812 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
|
3813 iaLimits.minPrio, maxClamped, newPrio, iaInfo->ia_upri); |
| 0 | 3814 } |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3815 } 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
|
3816 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
|
3817 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
|
3818 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
|
3819 ? (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
|
3820 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
|
3821 maxClamped, newPrio) |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3822 : newPrio; |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3823 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
|
3824 ? TS_NOCHANGE : (pri_t)tsLimits.maxPrio; |
| 0 | 3825 if (ThreadPriorityVerbose) { |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3826 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
|
3827 tsLimits.minPrio, maxClamped, newPrio, tsInfo->ts_upri); |
| 0 | 3828 } |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3829 } 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
|
3830 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
|
3831 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
|
3832 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
|
3833 ? (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
|
3834 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
|
3835 maxClamped, newPrio) |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3836 : newPrio; |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3837 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
|
3838 ? 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
|
3839 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
|
3840 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
|
3841 if (ThreadPriorityVerbose) { |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3842 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
|
3843 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
|
3844 } |
| 0 | 3845 } else { |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3846 if (ThreadPriorityVerbose) { |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3847 tty->print_cr("Unknown new scheduling class %d\n", new_class); |
| 0 | 3848 } |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3849 return EINVAL; // no clue, punt |
| 0 | 3850 } |
| 3851 | |
|
11111
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3852 rslt = priocntl(P_LWPID, lwpid, PC_SETPARMS, (caddr_t)&ParmInfo); |
| 0 | 3853 if (ThreadPriorityVerbose && rslt) { |
| 3854 tty->print_cr ("PC_SETPARMS ->%d %d\n", rslt, errno); | |
| 3855 } | |
| 3856 if (rslt < 0) return errno; | |
| 3857 | |
| 3858 #ifdef ASSERT | |
| 3859 // Sanity check: read back what we just attempted to set. | |
| 3860 // In theory it could have changed in the interim ... | |
| 3861 // | |
| 3862 // The priocntl system call is tricky. | |
| 3863 // Sometimes it'll validate the priority value argument and | |
| 3864 // return EINVAL if unhappy. At other times it fails silently. | |
| 3865 // Readbacks are prudent. | |
| 3866 | |
| 3867 if (!ReadBackValidate) return 0; | |
| 3868 | |
| 3869 memset(&ReadBack, 0, sizeof(pcparms_t)); | |
| 3870 ReadBack.pc_cid = PC_CLNULL; | |
|
11111
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3871 rslt = priocntl(P_LWPID, lwpid, PC_GETPARMS, (caddr_t)&ReadBack); |
| 0 | 3872 assert(rslt >= 0, "priocntl failed"); |
| 3873 Actual = Expected = 0xBAD; | |
| 3874 assert(ParmInfo.pc_cid == ReadBack.pc_cid, "cid's don't match"); | |
| 3875 if (ParmInfo.pc_cid == rtLimits.schedPolicy) { | |
| 3876 Actual = RTPRI(ReadBack)->rt_pri; | |
| 3877 Expected = RTPRI(ParmInfo)->rt_pri; | |
| 3878 } else if (ParmInfo.pc_cid == iaLimits.schedPolicy) { | |
| 3879 Actual = IAPRI(ReadBack)->ia_upri; | |
| 3880 Expected = IAPRI(ParmInfo)->ia_upri; | |
| 3881 } else if (ParmInfo.pc_cid == tsLimits.schedPolicy) { | |
| 3882 Actual = TSPRI(ReadBack)->ts_upri; | |
| 3883 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
|
3884 } 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
|
3885 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
|
3886 Expected = FXPRI(ParmInfo)->fx_upri; |
| 0 | 3887 } else { |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3888 if (ThreadPriorityVerbose) { |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3889 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
|
3890 ParmInfo.pc_cid); |
| 0 | 3891 } |
| 3892 } | |
| 3893 | |
| 3894 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
|
3895 if (ThreadPriorityVerbose) { |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3896 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
|
3897 lwpid, newPrio, ReadBack.pc_cid, Actual, Expected); |
| 0 | 3898 } |
| 3899 } | |
| 3900 #endif | |
| 3901 | |
| 3902 return 0; | |
| 3903 } | |
| 3904 | |
| 3905 // Solaris only gives access to 128 real priorities at a time, | |
| 3906 // so we expand Java's ten to fill this range. This would be better | |
| 3907 // if we dynamically adjusted relative priorities. | |
| 3908 // | |
| 3909 // The ThreadPriorityPolicy option allows us to select 2 different | |
| 3910 // priority scales. | |
| 3911 // | |
| 3912 // ThreadPriorityPolicy=0 | |
| 3913 // Since the Solaris' default priority is MaximumPriority, we do not | |
| 3914 // set a priority lower than Max unless a priority lower than | |
| 3915 // NormPriority is requested. | |
| 3916 // | |
| 3917 // ThreadPriorityPolicy=1 | |
| 3918 // This mode causes the priority table to get filled with | |
| 3919 // linear values. NormPriority get's mapped to 50% of the | |
| 3920 // Maximum priority an so on. This will cause VM threads | |
| 3921 // to get unfair treatment against other Solaris processes | |
| 3922 // which do not explicitly alter their thread priorities. | |
| 3923 // | |
| 3924 | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3925 int os::java_to_os_priority[CriticalPriority + 1] = { |
| 0 | 3926 -99999, // 0 Entry should never be used |
| 3927 | |
| 3928 0, // 1 MinPriority | |
| 3929 32, // 2 | |
| 3930 64, // 3 | |
| 3931 | |
| 3932 96, // 4 | |
| 3933 127, // 5 NormPriority | |
| 3934 127, // 6 | |
| 3935 | |
| 3936 127, // 7 | |
| 3937 127, // 8 | |
| 3938 127, // 9 NearMaxPriority | |
| 3939 | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3940 127, // 10 MaxPriority |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3941 |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3942 -criticalPrio // 11 CriticalPriority |
| 0 | 3943 }; |
| 3944 | |
| 3945 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
|
3946 OSThread* osthread = thread->osthread(); |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3947 |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3948 // Save requested priority in case the thread hasn't been started |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3949 osthread->set_native_priority(newpri); |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3950 |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3951 // Check for critical priority request |
|
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3952 bool fxcritical = false; |
|
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3953 if (newpri == -criticalPrio) { |
|
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3954 fxcritical = true; |
|
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|
3955 newpri = criticalPrio; |
|
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|
3956 } |
|
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|
3957 |
| 0 | 3958 assert(newpri >= MinimumPriority && newpri <= MaximumPriority, "bad priority mapping"); |
|
4854
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3959 if (!UseThreadPriorities) return OS_OK; |
|
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3960 |
|
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|
3961 int status = 0; |
|
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3962 |
|
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|
3963 if (!fxcritical) { |
|
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3964 // Use thr_setprio only if we have a priority that thr_setprio understands |
|
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3965 status = thr_setprio(thread->osthread()->thread_id(), newpri); |
|
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3966 } |
|
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3967 |
|
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|
3968 if (os::Solaris::T2_libthread() || |
|
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|
3969 (UseBoundThreads && osthread->is_vm_created())) { |
|
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3970 int lwp_status = |
|
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3971 set_lwp_class_and_priority(osthread->thread_id(), |
|
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3972 osthread->lwp_id(), |
|
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|
3973 newpri, |
|
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3974 fxcritical ? fxLimits.schedPolicy : myClass, |
|
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3975 !fxcritical); |
|
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3976 if (lwp_status != 0 && fxcritical) { |
|
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3977 // Try again, this time without changing the scheduling class |
|
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3978 newpri = java_MaxPriority_to_os_priority; |
|
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3979 lwp_status = set_lwp_class_and_priority(osthread->thread_id(), |
|
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|
3980 osthread->lwp_id(), |
|
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|
3981 newpri, myClass, false); |
|
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|
3982 } |
|
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|
3983 status |= lwp_status; |
|
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|
3984 } |
| 0 | 3985 return (status == 0) ? OS_OK : OS_ERR; |
| 3986 } | |
| 3987 | |
| 3988 | |
| 3989 OSReturn os::get_native_priority(const Thread* const thread, int *priority_ptr) { | |
| 3990 int p; | |
| 3991 if ( !UseThreadPriorities ) { | |
| 3992 *priority_ptr = NormalPriority; | |
| 3993 return OS_OK; | |
| 3994 } | |
| 3995 int status = thr_getprio(thread->osthread()->thread_id(), &p); | |
| 3996 if (status != 0) { | |
| 3997 return OS_ERR; | |
| 3998 } | |
| 3999 *priority_ptr = p; | |
| 4000 return OS_OK; | |
| 4001 } | |
| 4002 | |
| 4003 | |
| 4004 // Hint to the underlying OS that a task switch would not be good. | |
| 4005 // Void return because it's a hint and can fail. | |
| 4006 void os::hint_no_preempt() { | |
| 4007 schedctl_start(schedctl_init()); | |
| 4008 } | |
| 4009 | |
| 10405 | 4010 static void resume_clear_context(OSThread *osthread) { |
| 4011 osthread->set_ucontext(NULL); | |
| 4012 } | |
| 4013 | |
| 4014 static void suspend_save_context(OSThread *osthread, ucontext_t* context) { | |
| 4015 osthread->set_ucontext(context); | |
| 4016 } | |
| 4017 | |
| 4018 static Semaphore sr_semaphore; | |
| 4019 | |
| 4020 void os::Solaris::SR_handler(Thread* thread, ucontext_t* uc) { | |
| 4021 // Save and restore errno to avoid confusing native code with EINTR | |
| 4022 // after sigsuspend. | |
| 4023 int old_errno = errno; | |
| 4024 | |
| 4025 OSThread* osthread = thread->osthread(); | |
| 4026 assert(thread->is_VM_thread() || thread->is_Java_thread(), "Must be VMThread or JavaThread"); | |
| 4027 | |
| 4028 os::SuspendResume::State current = osthread->sr.state(); | |
| 4029 if (current == os::SuspendResume::SR_SUSPEND_REQUEST) { | |
| 4030 suspend_save_context(osthread, uc); | |
| 4031 | |
| 4032 // attempt to switch the state, we assume we had a SUSPEND_REQUEST | |
| 4033 os::SuspendResume::State state = osthread->sr.suspended(); | |
| 4034 if (state == os::SuspendResume::SR_SUSPENDED) { | |
| 4035 sigset_t suspend_set; // signals for sigsuspend() | |
| 4036 | |
| 4037 // get current set of blocked signals and unblock resume signal | |
| 4038 thr_sigsetmask(SIG_BLOCK, NULL, &suspend_set); | |
| 4039 sigdelset(&suspend_set, os::Solaris::SIGasync()); | |
| 4040 | |
| 4041 sr_semaphore.signal(); | |
| 4042 // wait here until we are resumed | |
| 4043 while (1) { | |
| 4044 sigsuspend(&suspend_set); | |
| 4045 | |
| 4046 os::SuspendResume::State result = osthread->sr.running(); | |
| 4047 if (result == os::SuspendResume::SR_RUNNING) { | |
| 4048 sr_semaphore.signal(); | |
| 4049 break; | |
| 4050 } | |
| 4051 } | |
| 4052 | |
| 4053 } else if (state == os::SuspendResume::SR_RUNNING) { | |
| 4054 // request was cancelled, continue | |
| 4055 } else { | |
| 4056 ShouldNotReachHere(); | |
| 4057 } | |
| 4058 | |
| 4059 resume_clear_context(osthread); | |
| 4060 } else if (current == os::SuspendResume::SR_RUNNING) { | |
| 4061 // request was cancelled, continue | |
| 4062 } else if (current == os::SuspendResume::SR_WAKEUP_REQUEST) { | |
| 4063 // ignore | |
| 4064 } else { | |
| 4065 // ignore | |
| 4066 } | |
| 4067 | |
| 4068 errno = old_errno; | |
| 4069 } | |
| 4070 | |
| 0 | 4071 void os::print_statistics() { |
| 4072 } | |
| 4073 | |
| 4074 int os::message_box(const char* title, const char* message) { | |
| 4075 int i; | |
| 4076 fdStream err(defaultStream::error_fd()); | |
| 4077 for (i = 0; i < 78; i++) err.print_raw("="); | |
| 4078 err.cr(); | |
| 4079 err.print_raw_cr(title); | |
| 4080 for (i = 0; i < 78; i++) err.print_raw("-"); | |
| 4081 err.cr(); | |
| 4082 err.print_raw_cr(message); | |
| 4083 for (i = 0; i < 78; i++) err.print_raw("="); | |
| 4084 err.cr(); | |
| 4085 | |
| 4086 char buf[16]; | |
| 4087 // Prevent process from exiting upon "read error" without consuming all CPU | |
| 4088 while (::read(0, buf, sizeof(buf)) <= 0) { ::sleep(100); } | |
| 4089 | |
| 4090 return buf[0] == 'y' || buf[0] == 'Y'; | |
| 4091 } | |
| 4092 | |
| 10405 | 4093 static int sr_notify(OSThread* osthread) { |
| 4094 int status = thr_kill(osthread->thread_id(), os::Solaris::SIGasync()); | |
| 4095 assert_status(status == 0, status, "thr_kill"); | |
| 4096 return status; | |
| 4097 } | |
| 4098 | |
| 4099 // "Randomly" selected value for how long we want to spin | |
| 4100 // before bailing out on suspending a thread, also how often | |
| 4101 // we send a signal to a thread we want to resume | |
| 4102 static const int RANDOMLY_LARGE_INTEGER = 1000000; | |
| 4103 static const int RANDOMLY_LARGE_INTEGER2 = 100; | |
| 4104 | |
| 4105 static bool do_suspend(OSThread* osthread) { | |
| 4106 assert(osthread->sr.is_running(), "thread should be running"); | |
| 4107 assert(!sr_semaphore.trywait(), "semaphore has invalid state"); | |
| 4108 | |
| 4109 // mark as suspended and send signal | |
| 4110 if (osthread->sr.request_suspend() != os::SuspendResume::SR_SUSPEND_REQUEST) { | |
| 4111 // failed to switch, state wasn't running? | |
| 4112 ShouldNotReachHere(); | |
| 4113 return false; | |
| 4114 } | |
| 4115 | |
| 4116 if (sr_notify(osthread) != 0) { | |
| 4117 ShouldNotReachHere(); | |
| 4118 } | |
| 4119 | |
| 4120 // managed to send the signal and switch to SUSPEND_REQUEST, now wait for SUSPENDED | |
| 4121 while (true) { | |
| 4122 if (sr_semaphore.timedwait(0, 2000 * NANOSECS_PER_MILLISEC)) { | |
| 4123 break; | |
| 4124 } else { | |
| 4125 // timeout | |
| 4126 os::SuspendResume::State cancelled = osthread->sr.cancel_suspend(); | |
| 4127 if (cancelled == os::SuspendResume::SR_RUNNING) { | |
| 4128 return false; | |
| 4129 } else if (cancelled == os::SuspendResume::SR_SUSPENDED) { | |
| 4130 // make sure that we consume the signal on the semaphore as well | |
| 4131 sr_semaphore.wait(); | |
| 4132 break; | |
| 4133 } else { | |
| 4134 ShouldNotReachHere(); | |
| 4135 return false; | |
| 4136 } | |
| 4137 } | |
| 4138 } | |
| 4139 | |
| 4140 guarantee(osthread->sr.is_suspended(), "Must be suspended"); | |
| 4141 return true; | |
| 4142 } | |
| 4143 | |
| 4144 static void do_resume(OSThread* osthread) { | |
| 4145 assert(osthread->sr.is_suspended(), "thread should be suspended"); | |
| 4146 assert(!sr_semaphore.trywait(), "invalid semaphore state"); | |
| 4147 | |
| 4148 if (osthread->sr.request_wakeup() != os::SuspendResume::SR_WAKEUP_REQUEST) { | |
| 4149 // failed to switch to WAKEUP_REQUEST | |
| 4150 ShouldNotReachHere(); | |
| 4151 return; | |
| 4152 } | |
| 4153 | |
| 4154 while (true) { | |
| 4155 if (sr_notify(osthread) == 0) { | |
| 4156 if (sr_semaphore.timedwait(0, 2 * NANOSECS_PER_MILLISEC)) { | |
| 4157 if (osthread->sr.is_running()) { | |
| 4158 return; | |
| 4159 } | |
| 4160 } | |
| 4161 } else { | |
| 4162 ShouldNotReachHere(); | |
| 4163 } | |
| 4164 } | |
| 4165 | |
| 4166 guarantee(osthread->sr.is_running(), "Must be running!"); | |
| 4167 } | |
| 4168 | |
| 4169 void os::SuspendedThreadTask::internal_do_task() { | |
| 4170 if (do_suspend(_thread->osthread())) { | |
| 4171 SuspendedThreadTaskContext context(_thread, _thread->osthread()->ucontext()); | |
| 4172 do_task(context); | |
| 4173 do_resume(_thread->osthread()); | |
| 4174 } | |
| 4175 } | |
| 4176 | |
| 4177 class PcFetcher : public os::SuspendedThreadTask { | |
| 4178 public: | |
| 4179 PcFetcher(Thread* thread) : os::SuspendedThreadTask(thread) {} | |
| 4180 ExtendedPC result(); | |
| 4181 protected: | |
| 4182 void do_task(const os::SuspendedThreadTaskContext& context); | |
| 4183 private: | |
| 4184 ExtendedPC _epc; | |
| 4185 }; | |
| 4186 | |
| 4187 ExtendedPC PcFetcher::result() { | |
| 4188 guarantee(is_done(), "task is not done yet."); | |
| 4189 return _epc; | |
| 4190 } | |
| 4191 | |
| 4192 void PcFetcher::do_task(const os::SuspendedThreadTaskContext& context) { | |
| 4193 Thread* thread = context.thread(); | |
| 4194 OSThread* osthread = thread->osthread(); | |
| 4195 if (osthread->ucontext() != NULL) { | |
| 4196 _epc = os::Solaris::ucontext_get_pc((ucontext_t *) context.ucontext()); | |
| 4197 } else { | |
| 4198 // NULL context is unexpected, double-check this is the VMThread | |
| 4199 guarantee(thread->is_VM_thread(), "can only be called for VMThread"); | |
| 4200 } | |
| 4201 } | |
| 4202 | |
| 0 | 4203 // A lightweight implementation that does not suspend the target thread and |
| 4204 // thus returns only a hint. Used for profiling only! | |
| 4205 ExtendedPC os::get_thread_pc(Thread* thread) { | |
| 4206 // Make sure that it is called by the watcher and the Threads lock is owned. | |
| 4207 assert(Thread::current()->is_Watcher_thread(), "Must be watcher and own Threads_lock"); | |
| 4208 // For now, is only used to profile the VM Thread | |
| 4209 assert(thread->is_VM_thread(), "Can only be called for VMThread"); | |
| 10405 | 4210 PcFetcher fetcher(thread); |
| 4211 fetcher.run(); | |
| 4212 return fetcher.result(); | |
| 0 | 4213 } |
| 4214 | |
| 4215 | |
| 4216 // This does not do anything on Solaris. This is basically a hook for being | |
| 4217 // able to use structured exception handling (thread-local exception filters) on, e.g., Win32. | |
| 4218 void os::os_exception_wrapper(java_call_t f, JavaValue* value, methodHandle* method, JavaCallArguments* args, Thread* thread) { | |
| 4219 f(value, method, args, thread); | |
| 4220 } | |
| 4221 | |
| 4222 // This routine may be used by user applications as a "hook" to catch signals. | |
| 4223 // The user-defined signal handler must pass unrecognized signals to this | |
| 4224 // routine, and if it returns true (non-zero), then the signal handler must | |
| 4225 // return immediately. If the flag "abort_if_unrecognized" is true, then this | |
| 4226 // routine will never retun false (zero), but instead will execute a VM panic | |
| 4227 // routine kill the process. | |
| 4228 // | |
| 4229 // If this routine returns false, it is OK to call it again. This allows | |
| 4230 // the user-defined signal handler to perform checks either before or after | |
| 4231 // the VM performs its own checks. Naturally, the user code would be making | |
| 4232 // a serious error if it tried to handle an exception (such as a null check | |
| 4233 // or breakpoint) that the VM was generating for its own correct operation. | |
| 4234 // | |
| 4235 // This routine may recognize any of the following kinds of signals: | |
| 4236 // SIGBUS, SIGSEGV, SIGILL, SIGFPE, BREAK_SIGNAL, SIGPIPE, SIGXFSZ, | |
| 4237 // os::Solaris::SIGasync | |
| 4238 // It should be consulted by handlers for any of those signals. | |
| 4239 // It explicitly does not recognize os::Solaris::SIGinterrupt | |
| 4240 // | |
| 4241 // The caller of this routine must pass in the three arguments supplied | |
| 4242 // to the function referred to in the "sa_sigaction" (not the "sa_handler") | |
| 4243 // field of the structure passed to sigaction(). This routine assumes that | |
| 4244 // the sa_flags field passed to sigaction() includes SA_SIGINFO and SA_RESTART. | |
| 4245 // | |
| 4246 // Note that the VM will print warnings if it detects conflicting signal | |
| 4247 // handlers, unless invoked with the option "-XX:+AllowUserSignalHandlers". | |
| 4248 // | |
| 2191 | 4249 extern "C" JNIEXPORT int |
| 4250 JVM_handle_solaris_signal(int signo, siginfo_t* siginfo, void* ucontext, | |
| 4251 int abort_if_unrecognized); | |
| 0 | 4252 |
| 4253 | |
| 4254 void signalHandler(int sig, siginfo_t* info, void* ucVoid) { | |
| 8067 | 4255 int orig_errno = errno; // Preserve errno value over signal handler. |
| 0 | 4256 JVM_handle_solaris_signal(sig, info, ucVoid, true); |
| 8067 | 4257 errno = orig_errno; |
| 0 | 4258 } |
| 4259 | |
| 4260 /* Do not delete - if guarantee is ever removed, a signal handler (even empty) | |
| 4261 is needed to provoke threads blocked on IO to return an EINTR | |
| 4262 Note: this explicitly does NOT call JVM_handle_solaris_signal and | |
| 4263 does NOT participate in signal chaining due to requirement for | |
| 4264 NOT setting SA_RESTART to make EINTR work. */ | |
| 4265 extern "C" void sigINTRHandler(int sig, siginfo_t* info, void* ucVoid) { | |
| 4266 if (UseSignalChaining) { | |
| 4267 struct sigaction *actp = os::Solaris::get_chained_signal_action(sig); | |
| 4268 if (actp && actp->sa_handler) { | |
| 4269 vm_exit_during_initialization("Signal chaining detected for VM interrupt signal, try -XX:+UseAltSigs"); | |
| 4270 } | |
| 4271 } | |
| 4272 } | |
| 4273 | |
| 4274 // This boolean allows users to forward their own non-matching signals | |
| 4275 // to JVM_handle_solaris_signal, harmlessly. | |
| 4276 bool os::Solaris::signal_handlers_are_installed = false; | |
| 4277 | |
| 4278 // For signal-chaining | |
| 4279 bool os::Solaris::libjsig_is_loaded = false; | |
| 4280 typedef struct sigaction *(*get_signal_t)(int); | |
| 4281 get_signal_t os::Solaris::get_signal_action = NULL; | |
| 4282 | |
| 4283 struct sigaction* os::Solaris::get_chained_signal_action(int sig) { | |
| 4284 struct sigaction *actp = NULL; | |
| 4285 | |
| 4286 if ((libjsig_is_loaded) && (sig <= Maxlibjsigsigs)) { | |
| 4287 // Retrieve the old signal handler from libjsig | |
| 4288 actp = (*get_signal_action)(sig); | |
| 4289 } | |
| 4290 if (actp == NULL) { | |
| 4291 // Retrieve the preinstalled signal handler from jvm | |
| 4292 actp = get_preinstalled_handler(sig); | |
| 4293 } | |
| 4294 | |
| 4295 return actp; | |
| 4296 } | |
| 4297 | |
| 4298 static bool call_chained_handler(struct sigaction *actp, int sig, | |
| 4299 siginfo_t *siginfo, void *context) { | |
| 4300 // Call the old signal handler | |
| 4301 if (actp->sa_handler == SIG_DFL) { | |
| 4302 // It's more reasonable to let jvm treat it as an unexpected exception | |
| 4303 // instead of taking the default action. | |
| 4304 return false; | |
| 4305 } else if (actp->sa_handler != SIG_IGN) { | |
| 4306 if ((actp->sa_flags & SA_NODEFER) == 0) { | |
| 4307 // automaticlly block the signal | |
| 4308 sigaddset(&(actp->sa_mask), sig); | |
| 4309 } | |
| 4310 | |
| 4311 sa_handler_t hand; | |
| 4312 sa_sigaction_t sa; | |
| 4313 bool siginfo_flag_set = (actp->sa_flags & SA_SIGINFO) != 0; | |
| 4314 // retrieve the chained handler | |
| 4315 if (siginfo_flag_set) { | |
| 4316 sa = actp->sa_sigaction; | |
| 4317 } else { | |
| 4318 hand = actp->sa_handler; | |
| 4319 } | |
| 4320 | |
| 4321 if ((actp->sa_flags & SA_RESETHAND) != 0) { | |
| 4322 actp->sa_handler = SIG_DFL; | |
| 4323 } | |
| 4324 | |
| 4325 // try to honor the signal mask | |
| 4326 sigset_t oset; | |
| 4327 thr_sigsetmask(SIG_SETMASK, &(actp->sa_mask), &oset); | |
| 4328 | |
| 4329 // call into the chained handler | |
| 4330 if (siginfo_flag_set) { | |
| 4331 (*sa)(sig, siginfo, context); | |
| 4332 } else { | |
| 4333 (*hand)(sig); | |
| 4334 } | |
| 4335 | |
| 4336 // restore the signal mask | |
| 4337 thr_sigsetmask(SIG_SETMASK, &oset, 0); | |
| 4338 } | |
| 4339 // Tell jvm's signal handler the signal is taken care of. | |
| 4340 return true; | |
| 4341 } | |
| 4342 | |
| 4343 bool os::Solaris::chained_handler(int sig, siginfo_t* siginfo, void* context) { | |
| 4344 bool chained = false; | |
| 4345 // signal-chaining | |
| 4346 if (UseSignalChaining) { | |
| 4347 struct sigaction *actp = get_chained_signal_action(sig); | |
| 4348 if (actp != NULL) { | |
| 4349 chained = call_chained_handler(actp, sig, siginfo, context); | |
| 4350 } | |
| 4351 } | |
| 4352 return chained; | |
| 4353 } | |
| 4354 | |
| 4355 struct sigaction* os::Solaris::get_preinstalled_handler(int sig) { | |
| 4356 assert((chainedsigactions != (struct sigaction *)NULL) && (preinstalled_sigs != (int *)NULL) , "signals not yet initialized"); | |
| 4357 if (preinstalled_sigs[sig] != 0) { | |
| 4358 return &chainedsigactions[sig]; | |
| 4359 } | |
| 4360 return NULL; | |
| 4361 } | |
| 4362 | |
| 4363 void os::Solaris::save_preinstalled_handler(int sig, struct sigaction& oldAct) { | |
| 4364 | |
| 4365 assert(sig > 0 && sig <= Maxsignum, "vm signal out of expected range"); | |
| 4366 assert((chainedsigactions != (struct sigaction *)NULL) && (preinstalled_sigs != (int *)NULL) , "signals not yet initialized"); | |
| 4367 chainedsigactions[sig] = oldAct; | |
| 4368 preinstalled_sigs[sig] = 1; | |
| 4369 } | |
| 4370 | |
| 4371 void os::Solaris::set_signal_handler(int sig, bool set_installed, bool oktochain) { | |
| 4372 // Check for overwrite. | |
| 4373 struct sigaction oldAct; | |
| 4374 sigaction(sig, (struct sigaction*)NULL, &oldAct); | |
| 4375 void* oldhand = oldAct.sa_sigaction ? CAST_FROM_FN_PTR(void*, oldAct.sa_sigaction) | |
| 4376 : CAST_FROM_FN_PTR(void*, oldAct.sa_handler); | |
| 4377 if (oldhand != CAST_FROM_FN_PTR(void*, SIG_DFL) && | |
| 4378 oldhand != CAST_FROM_FN_PTR(void*, SIG_IGN) && | |
| 4379 oldhand != CAST_FROM_FN_PTR(void*, signalHandler)) { | |
| 4380 if (AllowUserSignalHandlers || !set_installed) { | |
| 4381 // Do not overwrite; user takes responsibility to forward to us. | |
| 4382 return; | |
| 4383 } else if (UseSignalChaining) { | |
| 4384 if (oktochain) { | |
| 4385 // save the old handler in jvm | |
| 4386 save_preinstalled_handler(sig, oldAct); | |
| 4387 } else { | |
| 4388 vm_exit_during_initialization("Signal chaining not allowed for VM interrupt signal, try -XX:+UseAltSigs."); | |
| 4389 } | |
| 4390 // libjsig also interposes the sigaction() call below and saves the | |
| 4391 // old sigaction on it own. | |
| 4392 } else { | |
|
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|
4393 fatal(err_msg("Encountered unexpected pre-existing sigaction handler " |
|
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|
4394 "%#lx for signal %d.", (long)oldhand, sig)); |
| 0 | 4395 } |
| 4396 } | |
| 4397 | |
| 4398 struct sigaction sigAct; | |
| 4399 sigfillset(&(sigAct.sa_mask)); | |
| 4400 sigAct.sa_handler = SIG_DFL; | |
| 4401 | |
| 4402 sigAct.sa_sigaction = signalHandler; | |
| 4403 // Handle SIGSEGV on alternate signal stack if | |
| 4404 // not using stack banging | |
| 4405 if (!UseStackBanging && sig == SIGSEGV) { | |
| 4406 sigAct.sa_flags = SA_SIGINFO | SA_RESTART | SA_ONSTACK; | |
| 4407 // Interruptible i/o requires SA_RESTART cleared so EINTR | |
| 4408 // is returned instead of restarting system calls | |
| 4409 } else if (sig == os::Solaris::SIGinterrupt()) { | |
| 4410 sigemptyset(&sigAct.sa_mask); | |
| 4411 sigAct.sa_handler = NULL; | |
| 4412 sigAct.sa_flags = SA_SIGINFO; | |
| 4413 sigAct.sa_sigaction = sigINTRHandler; | |
| 4414 } else { | |
| 4415 sigAct.sa_flags = SA_SIGINFO | SA_RESTART; | |
| 4416 } | |
| 4417 os::Solaris::set_our_sigflags(sig, sigAct.sa_flags); | |
| 4418 | |
| 4419 sigaction(sig, &sigAct, &oldAct); | |
| 4420 | |
| 4421 void* oldhand2 = oldAct.sa_sigaction ? CAST_FROM_FN_PTR(void*, oldAct.sa_sigaction) | |
| 4422 : CAST_FROM_FN_PTR(void*, oldAct.sa_handler); | |
| 4423 assert(oldhand2 == oldhand, "no concurrent signal handler installation"); | |
| 4424 } | |
| 4425 | |
| 4426 | |
| 4427 #define DO_SIGNAL_CHECK(sig) \ | |
| 4428 if (!sigismember(&check_signal_done, sig)) \ | |
| 4429 os::Solaris::check_signal_handler(sig) | |
| 4430 | |
| 4431 // This method is a periodic task to check for misbehaving JNI applications | |
| 4432 // under CheckJNI, we can add any periodic checks here | |
| 4433 | |
| 4434 void os::run_periodic_checks() { | |
| 4435 // A big source of grief is hijacking virt. addr 0x0 on Solaris, | |
| 4436 // thereby preventing a NULL checks. | |
| 4437 if(!check_addr0_done) check_addr0_done = check_addr0(tty); | |
| 4438 | |
| 4439 if (check_signals == false) return; | |
| 4440 | |
| 4441 // SEGV and BUS if overridden could potentially prevent | |
| 4442 // generation of hs*.log in the event of a crash, debugging | |
| 4443 // such a case can be very challenging, so we absolutely | |
| 4444 // check for the following for a good measure: | |
| 4445 DO_SIGNAL_CHECK(SIGSEGV); | |
| 4446 DO_SIGNAL_CHECK(SIGILL); | |
| 4447 DO_SIGNAL_CHECK(SIGFPE); | |
| 4448 DO_SIGNAL_CHECK(SIGBUS); | |
| 4449 DO_SIGNAL_CHECK(SIGPIPE); | |
| 4450 DO_SIGNAL_CHECK(SIGXFSZ); | |
| 4451 | |
| 4452 // ReduceSignalUsage allows the user to override these handlers | |
| 4453 // see comments at the very top and jvm_solaris.h | |
| 4454 if (!ReduceSignalUsage) { | |
| 4455 DO_SIGNAL_CHECK(SHUTDOWN1_SIGNAL); | |
| 4456 DO_SIGNAL_CHECK(SHUTDOWN2_SIGNAL); | |
| 4457 DO_SIGNAL_CHECK(SHUTDOWN3_SIGNAL); | |
| 4458 DO_SIGNAL_CHECK(BREAK_SIGNAL); | |
| 4459 } | |
| 4460 | |
| 4461 // See comments above for using JVM1/JVM2 and UseAltSigs | |
| 4462 DO_SIGNAL_CHECK(os::Solaris::SIGinterrupt()); | |
| 4463 DO_SIGNAL_CHECK(os::Solaris::SIGasync()); | |
| 4464 | |
| 4465 } | |
| 4466 | |
| 4467 typedef int (*os_sigaction_t)(int, const struct sigaction *, struct sigaction *); | |
| 4468 | |
| 4469 static os_sigaction_t os_sigaction = NULL; | |
| 4470 | |
| 4471 void os::Solaris::check_signal_handler(int sig) { | |
| 4472 char buf[O_BUFLEN]; | |
| 4473 address jvmHandler = NULL; | |
| 4474 | |
| 4475 struct sigaction act; | |
| 4476 if (os_sigaction == NULL) { | |
| 4477 // only trust the default sigaction, in case it has been interposed | |
| 4478 os_sigaction = (os_sigaction_t)dlsym(RTLD_DEFAULT, "sigaction"); | |
| 4479 if (os_sigaction == NULL) return; | |
| 4480 } | |
| 4481 | |
| 4482 os_sigaction(sig, (struct sigaction*)NULL, &act); | |
| 4483 | |
| 4484 address thisHandler = (act.sa_flags & SA_SIGINFO) | |
| 4485 ? CAST_FROM_FN_PTR(address, act.sa_sigaction) | |
| 4486 : CAST_FROM_FN_PTR(address, act.sa_handler) ; | |
| 4487 | |
| 4488 | |
| 4489 switch(sig) { | |
| 4490 case SIGSEGV: | |
| 4491 case SIGBUS: | |
| 4492 case SIGFPE: | |
| 4493 case SIGPIPE: | |
| 4494 case SIGXFSZ: | |
| 4495 case SIGILL: | |
| 4496 jvmHandler = CAST_FROM_FN_PTR(address, signalHandler); | |
| 4497 break; | |
| 4498 | |
| 4499 case SHUTDOWN1_SIGNAL: | |
| 4500 case SHUTDOWN2_SIGNAL: | |
| 4501 case SHUTDOWN3_SIGNAL: | |
| 4502 case BREAK_SIGNAL: | |
| 4503 jvmHandler = (address)user_handler(); | |
| 4504 break; | |
| 4505 | |
| 4506 default: | |
| 4507 int intrsig = os::Solaris::SIGinterrupt(); | |
| 4508 int asynsig = os::Solaris::SIGasync(); | |
| 4509 | |
| 4510 if (sig == intrsig) { | |
| 4511 jvmHandler = CAST_FROM_FN_PTR(address, sigINTRHandler); | |
| 4512 } else if (sig == asynsig) { | |
| 4513 jvmHandler = CAST_FROM_FN_PTR(address, signalHandler); | |
| 4514 } else { | |
| 4515 return; | |
| 4516 } | |
| 4517 break; | |
| 4518 } | |
| 4519 | |
| 4520 | |
| 4521 if (thisHandler != jvmHandler) { | |
| 4522 tty->print("Warning: %s handler ", exception_name(sig, buf, O_BUFLEN)); | |
| 4523 tty->print("expected:%s", get_signal_handler_name(jvmHandler, buf, O_BUFLEN)); | |
| 4524 tty->print_cr(" found:%s", get_signal_handler_name(thisHandler, buf, O_BUFLEN)); | |
| 4525 // No need to check this sig any longer | |
| 4526 sigaddset(&check_signal_done, sig); | |
| 4527 } else if(os::Solaris::get_our_sigflags(sig) != 0 && act.sa_flags != os::Solaris::get_our_sigflags(sig)) { | |
| 4528 tty->print("Warning: %s handler flags ", exception_name(sig, buf, O_BUFLEN)); | |
| 4529 tty->print("expected:" PTR32_FORMAT, os::Solaris::get_our_sigflags(sig)); | |
| 4530 tty->print_cr(" found:" PTR32_FORMAT, act.sa_flags); | |
| 4531 // No need to check this sig any longer | |
| 4532 sigaddset(&check_signal_done, sig); | |
| 4533 } | |
| 4534 | |
| 4535 // Print all the signal handler state | |
| 4536 if (sigismember(&check_signal_done, sig)) { | |
| 4537 print_signal_handlers(tty, buf, O_BUFLEN); | |
| 4538 } | |
| 4539 | |
| 4540 } | |
| 4541 | |
| 4542 void os::Solaris::install_signal_handlers() { | |
| 4543 bool libjsigdone = false; | |
| 4544 signal_handlers_are_installed = true; | |
| 4545 | |
| 4546 // signal-chaining | |
| 4547 typedef void (*signal_setting_t)(); | |
| 4548 signal_setting_t begin_signal_setting = NULL; | |
| 4549 signal_setting_t end_signal_setting = NULL; | |
| 4550 begin_signal_setting = CAST_TO_FN_PTR(signal_setting_t, | |
| 4551 dlsym(RTLD_DEFAULT, "JVM_begin_signal_setting")); | |
| 4552 if (begin_signal_setting != NULL) { | |
| 4553 end_signal_setting = CAST_TO_FN_PTR(signal_setting_t, | |
| 4554 dlsym(RTLD_DEFAULT, "JVM_end_signal_setting")); | |
| 4555 get_signal_action = CAST_TO_FN_PTR(get_signal_t, | |
| 4556 dlsym(RTLD_DEFAULT, "JVM_get_signal_action")); | |
| 4557 get_libjsig_version = CAST_TO_FN_PTR(version_getting_t, | |
| 4558 dlsym(RTLD_DEFAULT, "JVM_get_libjsig_version")); | |
| 4559 libjsig_is_loaded = true; | |
| 4560 if (os::Solaris::get_libjsig_version != NULL) { | |
| 4561 libjsigversion = (*os::Solaris::get_libjsig_version)(); | |
| 4562 } | |
| 4563 assert(UseSignalChaining, "should enable signal-chaining"); | |
| 4564 } | |
| 4565 if (libjsig_is_loaded) { | |
| 4566 // Tell libjsig jvm is setting signal handlers | |
| 4567 (*begin_signal_setting)(); | |
| 4568 } | |
| 4569 | |
| 4570 set_signal_handler(SIGSEGV, true, true); | |
| 4571 set_signal_handler(SIGPIPE, true, true); | |
| 4572 set_signal_handler(SIGXFSZ, true, true); | |
| 4573 set_signal_handler(SIGBUS, true, true); | |
| 4574 set_signal_handler(SIGILL, true, true); | |
| 4575 set_signal_handler(SIGFPE, true, true); | |
| 4576 | |
| 4577 | |
| 4578 if (os::Solaris::SIGinterrupt() > OLDMAXSIGNUM || os::Solaris::SIGasync() > OLDMAXSIGNUM) { | |
| 4579 | |
| 4580 // Pre-1.4.1 Libjsig limited to signal chaining signals <= 32 so | |
| 4581 // can not register overridable signals which might be > 32 | |
| 4582 if (libjsig_is_loaded && libjsigversion <= JSIG_VERSION_1_4_1) { | |
| 4583 // Tell libjsig jvm has finished setting signal handlers | |
| 4584 (*end_signal_setting)(); | |
| 4585 libjsigdone = true; | |
| 4586 } | |
| 4587 } | |
| 4588 | |
| 4589 // Never ok to chain our SIGinterrupt | |
| 4590 set_signal_handler(os::Solaris::SIGinterrupt(), true, false); | |
| 4591 set_signal_handler(os::Solaris::SIGasync(), true, true); | |
| 4592 | |
| 4593 if (libjsig_is_loaded && !libjsigdone) { | |
| 4594 // Tell libjsig jvm finishes setting signal handlers | |
| 4595 (*end_signal_setting)(); | |
| 4596 } | |
| 4597 | |
| 4598 // We don't activate signal checker if libjsig is in place, we trust ourselves | |
|
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|
4599 // and if UserSignalHandler is installed all bets are off. |
|
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|
4600 // Log that signal checking is off only if -verbose:jni is specified. |
| 0 | 4601 if (CheckJNICalls) { |
| 4602 if (libjsig_is_loaded) { | |
|
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|
4603 if (PrintJNIResolving) { |
|
3607aac85aa9
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|
4604 tty->print_cr("Info: libjsig is activated, all active signal checking is disabled"); |
|
3607aac85aa9
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|
4605 } |
| 0 | 4606 check_signals = false; |
| 4607 } | |
| 4608 if (AllowUserSignalHandlers) { | |
|
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|
4609 if (PrintJNIResolving) { |
|
3607aac85aa9
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|
4610 tty->print_cr("Info: AllowUserSignalHandlers is activated, all active signal checking is disabled"); |
|
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|
4611 } |
| 0 | 4612 check_signals = false; |
| 4613 } | |
| 4614 } | |
| 4615 } | |
| 4616 | |
| 4617 | |
| 4618 void report_error(const char* file_name, int line_no, const char* title, const char* format, ...); | |
| 4619 | |
| 4620 const char * signames[] = { | |
| 4621 "SIG0", | |
| 4622 "SIGHUP", "SIGINT", "SIGQUIT", "SIGILL", "SIGTRAP", | |
| 4623 "SIGABRT", "SIGEMT", "SIGFPE", "SIGKILL", "SIGBUS", | |
| 4624 "SIGSEGV", "SIGSYS", "SIGPIPE", "SIGALRM", "SIGTERM", | |
| 4625 "SIGUSR1", "SIGUSR2", "SIGCLD", "SIGPWR", "SIGWINCH", | |
| 4626 "SIGURG", "SIGPOLL", "SIGSTOP", "SIGTSTP", "SIGCONT", | |
| 4627 "SIGTTIN", "SIGTTOU", "SIGVTALRM", "SIGPROF", "SIGXCPU", | |
| 4628 "SIGXFSZ", "SIGWAITING", "SIGLWP", "SIGFREEZE", "SIGTHAW", | |
| 4629 "SIGCANCEL", "SIGLOST" | |
| 4630 }; | |
| 4631 | |
| 4632 const char* os::exception_name(int exception_code, char* buf, size_t size) { | |
| 4633 if (0 < exception_code && exception_code <= SIGRTMAX) { | |
| 4634 // signal | |
| 4635 if (exception_code < sizeof(signames)/sizeof(const char*)) { | |
| 4636 jio_snprintf(buf, size, "%s", signames[exception_code]); | |
| 4637 } else { | |
| 4638 jio_snprintf(buf, size, "SIG%d", exception_code); | |
| 4639 } | |
| 4640 return buf; | |
| 4641 } else { | |
| 4642 return NULL; | |
| 4643 } | |
| 4644 } | |
| 4645 | |
| 4646 // (Static) wrappers for the new libthread API | |
| 4647 int_fnP_thread_t_iP_uP_stack_tP_gregset_t os::Solaris::_thr_getstate; | |
| 4648 int_fnP_thread_t_i_gregset_t os::Solaris::_thr_setstate; | |
| 4649 int_fnP_thread_t_i os::Solaris::_thr_setmutator; | |
| 4650 int_fnP_thread_t os::Solaris::_thr_suspend_mutator; | |
| 4651 int_fnP_thread_t os::Solaris::_thr_continue_mutator; | |
| 4652 | |
|
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|
4653 // (Static) wrapper for getisax(2) call. |
|
6af0a709d52b
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548
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|
4654 os::Solaris::getisax_func_t os::Solaris::_getisax = 0; |
|
6af0a709d52b
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|
4655 |
| 0 | 4656 // (Static) wrappers for the liblgrp API |
| 4657 os::Solaris::lgrp_home_func_t os::Solaris::_lgrp_home; | |
| 4658 os::Solaris::lgrp_init_func_t os::Solaris::_lgrp_init; | |
| 4659 os::Solaris::lgrp_fini_func_t os::Solaris::_lgrp_fini; | |
| 4660 os::Solaris::lgrp_root_func_t os::Solaris::_lgrp_root; | |
| 4661 os::Solaris::lgrp_children_func_t os::Solaris::_lgrp_children; | |
|
144
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|
4662 os::Solaris::lgrp_resources_func_t os::Solaris::_lgrp_resources; |
| 0 | 4663 os::Solaris::lgrp_nlgrps_func_t os::Solaris::_lgrp_nlgrps; |
| 4664 os::Solaris::lgrp_cookie_stale_func_t os::Solaris::_lgrp_cookie_stale; | |
| 4665 os::Solaris::lgrp_cookie_t os::Solaris::_lgrp_cookie = 0; | |
| 4666 | |
| 4667 // (Static) wrapper for meminfo() call. | |
| 4668 os::Solaris::meminfo_func_t os::Solaris::_meminfo = 0; | |
| 4669 | |
|
641
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|
4670 static address resolve_symbol_lazy(const char* name) { |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
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diff
changeset
|
4671 address addr = (address) dlsym(RTLD_DEFAULT, name); |
| 0 | 4672 if(addr == NULL) { |
| 4673 // RTLD_DEFAULT was not defined on some early versions of 2.5.1 | |
| 4674 addr = (address) dlsym(RTLD_NEXT, name); | |
|
641
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|
4675 } |
|
6af0a709d52b
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diff
changeset
|
4676 return addr; |
|
6af0a709d52b
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diff
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|
4677 } |
|
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diff
changeset
|
4678 |
|
6af0a709d52b
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diff
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|
4679 static address resolve_symbol(const char* name) { |
|
6af0a709d52b
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|
4680 address addr = resolve_symbol_lazy(name); |
|
6af0a709d52b
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548
diff
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|
4681 if(addr == NULL) { |
|
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|
4682 fatal(dlerror()); |
| 0 | 4683 } |
| 4684 return addr; | |
| 4685 } | |
| 4686 | |
| 4687 | |
| 4688 | |
| 4689 // isT2_libthread() | |
| 4690 // | |
| 4691 // Routine to determine if we are currently using the new T2 libthread. | |
| 4692 // | |
| 4693 // We determine if we are using T2 by reading /proc/self/lstatus and | |
| 4694 // looking for a thread with the ASLWP bit set. If we find this status | |
| 4695 // bit set, we must assume that we are NOT using T2. The T2 team | |
| 4696 // has approved this algorithm. | |
| 4697 // | |
| 4698 // We need to determine if we are running with the new T2 libthread | |
| 4699 // since setting native thread priorities is handled differently | |
| 4700 // when using this library. All threads created using T2 are bound | |
| 4701 // threads. Calling thr_setprio is meaningless in this case. | |
| 4702 // | |
| 4703 bool isT2_libthread() { | |
| 4704 static prheader_t * lwpArray = NULL; | |
| 4705 static int lwpSize = 0; | |
| 4706 static int lwpFile = -1; | |
| 4707 lwpstatus_t * that; | |
| 4708 char lwpName [128]; | |
| 4709 bool isT2 = false; | |
| 4710 | |
| 4711 #define ADR(x) ((uintptr_t)(x)) | |
| 4712 #define LWPINDEX(ary,ix) ((lwpstatus_t *)(((ary)->pr_entsize * (ix)) + (ADR((ary) + 1)))) | |
| 4713 | |
|
1980
828eafbd85cc
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1972
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changeset
|
4714 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
|
4715 if (lwpFile < 0) { |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4716 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
|
4717 return false; |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4718 } |
| 0 | 4719 lwpSize = 16*1024; |
| 4720 for (;;) { | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4721 ::lseek64 (lwpFile, 0, SEEK_SET); |
| 6197 | 4722 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
|
4723 if (::read(lwpFile, lwpArray, lwpSize) < 0) { |
|
89
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4724 if (ThreadPriorityVerbose) warning("Error reading /proc/self/lstatus\n"); |
| 0 | 4725 break; |
| 4726 } | |
|
89
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4727 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
|
4728 // 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
|
4729 int aslwpcount = 0; |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4730 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
|
4731 that = LWPINDEX(lwpArray,i); |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4732 if (that->pr_flags & PR_ASLWP) { |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4733 aslwpcount++; |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4734 } |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4735 } |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4736 if (aslwpcount == 0) isT2 = true; |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4737 break; |
| 0 | 4738 } |
|
89
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4739 lwpSize = lwpArray->pr_nent * lwpArray->pr_entsize; |
| 6197 | 4740 FREE_C_HEAP_ARRAY(char, lwpArray, mtInternal); // retry. |
| 4741 } | |
| 4742 | |
| 4743 FREE_C_HEAP_ARRAY(char, lwpArray, mtInternal); | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4744 ::close (lwpFile); |
|
89
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4745 if (ThreadPriorityVerbose) { |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4746 if (isT2) tty->print_cr("We are running with a T2 libthread\n"); |
| 0 | 4747 else tty->print_cr("We are not running with a T2 libthread\n"); |
| 4748 } | |
|
89
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4749 return isT2; |
| 0 | 4750 } |
| 4751 | |
| 4752 | |
| 4753 void os::Solaris::libthread_init() { | |
| 4754 address func = (address)dlsym(RTLD_DEFAULT, "_thr_suspend_allmutators"); | |
| 4755 | |
| 4756 // Determine if we are running with the new T2 libthread | |
| 4757 os::Solaris::set_T2_libthread(isT2_libthread()); | |
| 4758 | |
| 4759 lwp_priocntl_init(); | |
| 4760 | |
| 4761 // RTLD_DEFAULT was not defined on some early versions of 5.5.1 | |
| 4762 if(func == NULL) { | |
| 4763 func = (address) dlsym(RTLD_NEXT, "_thr_suspend_allmutators"); | |
| 4764 // Guarantee that this VM is running on an new enough OS (5.6 or | |
| 4765 // later) that it will have a new enough libthread.so. | |
| 4766 guarantee(func != NULL, "libthread.so is too old."); | |
| 4767 } | |
| 4768 | |
| 4769 // Initialize the new libthread getstate API wrappers | |
| 4770 func = resolve_symbol("thr_getstate"); | |
| 4771 os::Solaris::set_thr_getstate(CAST_TO_FN_PTR(int_fnP_thread_t_iP_uP_stack_tP_gregset_t, func)); | |
| 4772 | |
| 4773 func = resolve_symbol("thr_setstate"); | |
| 4774 os::Solaris::set_thr_setstate(CAST_TO_FN_PTR(int_fnP_thread_t_i_gregset_t, func)); | |
| 4775 | |
| 4776 func = resolve_symbol("thr_setmutator"); | |
| 4777 os::Solaris::set_thr_setmutator(CAST_TO_FN_PTR(int_fnP_thread_t_i, func)); | |
| 4778 | |
| 4779 func = resolve_symbol("thr_suspend_mutator"); | |
| 4780 os::Solaris::set_thr_suspend_mutator(CAST_TO_FN_PTR(int_fnP_thread_t, func)); | |
| 4781 | |
| 4782 func = resolve_symbol("thr_continue_mutator"); | |
| 4783 os::Solaris::set_thr_continue_mutator(CAST_TO_FN_PTR(int_fnP_thread_t, func)); | |
| 4784 | |
| 4785 int size; | |
| 4786 void (*handler_info_func)(address *, int *); | |
| 4787 handler_info_func = CAST_TO_FN_PTR(void (*)(address *, int *), resolve_symbol("thr_sighndlrinfo")); | |
| 4788 handler_info_func(&handler_start, &size); | |
| 4789 handler_end = handler_start + size; | |
| 4790 } | |
| 4791 | |
| 4792 | |
| 4793 int_fnP_mutex_tP os::Solaris::_mutex_lock; | |
| 4794 int_fnP_mutex_tP os::Solaris::_mutex_trylock; | |
| 4795 int_fnP_mutex_tP os::Solaris::_mutex_unlock; | |
| 4796 int_fnP_mutex_tP_i_vP os::Solaris::_mutex_init; | |
| 4797 int_fnP_mutex_tP os::Solaris::_mutex_destroy; | |
| 4798 int os::Solaris::_mutex_scope = USYNC_THREAD; | |
| 4799 | |
| 4800 int_fnP_cond_tP_mutex_tP_timestruc_tP os::Solaris::_cond_timedwait; | |
| 4801 int_fnP_cond_tP_mutex_tP os::Solaris::_cond_wait; | |
| 4802 int_fnP_cond_tP os::Solaris::_cond_signal; | |
| 4803 int_fnP_cond_tP os::Solaris::_cond_broadcast; | |
| 4804 int_fnP_cond_tP_i_vP os::Solaris::_cond_init; | |
| 4805 int_fnP_cond_tP os::Solaris::_cond_destroy; | |
| 4806 int os::Solaris::_cond_scope = USYNC_THREAD; | |
| 4807 | |
| 4808 void os::Solaris::synchronization_init() { | |
| 4809 if(UseLWPSynchronization) { | |
| 4810 os::Solaris::set_mutex_lock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("_lwp_mutex_lock"))); | |
| 4811 os::Solaris::set_mutex_trylock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("_lwp_mutex_trylock"))); | |
| 4812 os::Solaris::set_mutex_unlock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("_lwp_mutex_unlock"))); | |
| 4813 os::Solaris::set_mutex_init(lwp_mutex_init); | |
| 4814 os::Solaris::set_mutex_destroy(lwp_mutex_destroy); | |
| 4815 os::Solaris::set_mutex_scope(USYNC_THREAD); | |
| 4816 | |
| 4817 os::Solaris::set_cond_timedwait(CAST_TO_FN_PTR(int_fnP_cond_tP_mutex_tP_timestruc_tP, resolve_symbol("_lwp_cond_timedwait"))); | |
| 4818 os::Solaris::set_cond_wait(CAST_TO_FN_PTR(int_fnP_cond_tP_mutex_tP, resolve_symbol("_lwp_cond_wait"))); | |
| 4819 os::Solaris::set_cond_signal(CAST_TO_FN_PTR(int_fnP_cond_tP, resolve_symbol("_lwp_cond_signal"))); | |
| 4820 os::Solaris::set_cond_broadcast(CAST_TO_FN_PTR(int_fnP_cond_tP, resolve_symbol("_lwp_cond_broadcast"))); | |
| 4821 os::Solaris::set_cond_init(lwp_cond_init); | |
| 4822 os::Solaris::set_cond_destroy(lwp_cond_destroy); | |
| 4823 os::Solaris::set_cond_scope(USYNC_THREAD); | |
| 4824 } | |
| 4825 else { | |
| 4826 os::Solaris::set_mutex_scope(USYNC_THREAD); | |
| 4827 os::Solaris::set_cond_scope(USYNC_THREAD); | |
| 4828 | |
| 4829 if(UsePthreads) { | |
| 4830 os::Solaris::set_mutex_lock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("pthread_mutex_lock"))); | |
| 4831 os::Solaris::set_mutex_trylock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("pthread_mutex_trylock"))); | |
| 4832 os::Solaris::set_mutex_unlock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("pthread_mutex_unlock"))); | |
| 4833 os::Solaris::set_mutex_init(pthread_mutex_default_init); | |
| 4834 os::Solaris::set_mutex_destroy(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("pthread_mutex_destroy"))); | |
| 4835 | |
| 4836 os::Solaris::set_cond_timedwait(CAST_TO_FN_PTR(int_fnP_cond_tP_mutex_tP_timestruc_tP, resolve_symbol("pthread_cond_timedwait"))); | |
| 4837 os::Solaris::set_cond_wait(CAST_TO_FN_PTR(int_fnP_cond_tP_mutex_tP, resolve_symbol("pthread_cond_wait"))); | |
| 4838 os::Solaris::set_cond_signal(CAST_TO_FN_PTR(int_fnP_cond_tP, resolve_symbol("pthread_cond_signal"))); | |
| 4839 os::Solaris::set_cond_broadcast(CAST_TO_FN_PTR(int_fnP_cond_tP, resolve_symbol("pthread_cond_broadcast"))); | |
| 4840 os::Solaris::set_cond_init(pthread_cond_default_init); | |
| 4841 os::Solaris::set_cond_destroy(CAST_TO_FN_PTR(int_fnP_cond_tP, resolve_symbol("pthread_cond_destroy"))); | |
| 4842 } | |
| 4843 else { | |
| 4844 os::Solaris::set_mutex_lock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("mutex_lock"))); | |
| 4845 os::Solaris::set_mutex_trylock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("mutex_trylock"))); | |
| 4846 os::Solaris::set_mutex_unlock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("mutex_unlock"))); | |
| 4847 os::Solaris::set_mutex_init(::mutex_init); | |
| 4848 os::Solaris::set_mutex_destroy(::mutex_destroy); | |
| 4849 | |
| 4850 os::Solaris::set_cond_timedwait(CAST_TO_FN_PTR(int_fnP_cond_tP_mutex_tP_timestruc_tP, resolve_symbol("cond_timedwait"))); | |
| 4851 os::Solaris::set_cond_wait(CAST_TO_FN_PTR(int_fnP_cond_tP_mutex_tP, resolve_symbol("cond_wait"))); | |
| 4852 os::Solaris::set_cond_signal(CAST_TO_FN_PTR(int_fnP_cond_tP, resolve_symbol("cond_signal"))); | |
| 4853 os::Solaris::set_cond_broadcast(CAST_TO_FN_PTR(int_fnP_cond_tP, resolve_symbol("cond_broadcast"))); | |
| 4854 os::Solaris::set_cond_init(::cond_init); | |
| 4855 os::Solaris::set_cond_destroy(::cond_destroy); | |
| 4856 } | |
| 4857 } | |
| 4858 } | |
| 4859 | |
|
462
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
4860 bool os::Solaris::liblgrp_init() { |
|
267
9d6a3a6891f8
6720130: NUMA allocator: The linux version should search for libnuma.so.1
iveresov
parents:
144
diff
changeset
|
4861 void *handle = dlopen("liblgrp.so.1", RTLD_LAZY); |
| 0 | 4862 if (handle != NULL) { |
| 4863 os::Solaris::set_lgrp_home(CAST_TO_FN_PTR(lgrp_home_func_t, dlsym(handle, "lgrp_home"))); | |
| 4864 os::Solaris::set_lgrp_init(CAST_TO_FN_PTR(lgrp_init_func_t, dlsym(handle, "lgrp_init"))); | |
| 4865 os::Solaris::set_lgrp_fini(CAST_TO_FN_PTR(lgrp_fini_func_t, dlsym(handle, "lgrp_fini"))); | |
| 4866 os::Solaris::set_lgrp_root(CAST_TO_FN_PTR(lgrp_root_func_t, dlsym(handle, "lgrp_root"))); | |
| 4867 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
|
4868 os::Solaris::set_lgrp_resources(CAST_TO_FN_PTR(lgrp_resources_func_t, dlsym(handle, "lgrp_resources"))); |
| 0 | 4869 os::Solaris::set_lgrp_nlgrps(CAST_TO_FN_PTR(lgrp_nlgrps_func_t, dlsym(handle, "lgrp_nlgrps"))); |
| 4870 os::Solaris::set_lgrp_cookie_stale(CAST_TO_FN_PTR(lgrp_cookie_stale_func_t, | |
| 4871 dlsym(handle, "lgrp_cookie_stale"))); | |
| 4872 | |
| 4873 lgrp_cookie_t c = lgrp_init(LGRP_VIEW_CALLER); | |
| 4874 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
|
4875 return true; |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
4876 } |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
4877 return false; |
| 0 | 4878 } |
| 4879 | |
| 4880 void os::Solaris::misc_sym_init() { | |
|
641
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4881 address func; |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4882 |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4883 // getisax |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4884 func = resolve_symbol_lazy("getisax"); |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4885 if (func != NULL) { |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4886 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
|
4887 } |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4888 |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4889 // meminfo |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4890 func = resolve_symbol_lazy("meminfo"); |
| 0 | 4891 if (func != NULL) { |
| 4892 os::Solaris::set_meminfo(CAST_TO_FN_PTR(meminfo_func_t, func)); | |
| 4893 } | |
| 4894 } | |
| 4895 | |
|
641
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4896 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
|
4897 assert(_getisax != NULL, "_getisax not set"); |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4898 return _getisax(array, n); |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4899 } |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4900 |
| 0 | 4901 // int pset_getloadavg(psetid_t pset, double loadavg[], int nelem); |
| 4902 typedef long (*pset_getloadavg_type)(psetid_t pset, double loadavg[], int nelem); | |
| 4903 static pset_getloadavg_type pset_getloadavg_ptr = NULL; | |
| 4904 | |
| 4905 void init_pset_getloadavg_ptr(void) { | |
| 4906 pset_getloadavg_ptr = | |
| 4907 (pset_getloadavg_type)dlsym(RTLD_DEFAULT, "pset_getloadavg"); | |
| 4908 if (PrintMiscellaneous && Verbose && pset_getloadavg_ptr == NULL) { | |
| 4909 warning("pset_getloadavg function not found"); | |
| 4910 } | |
| 4911 } | |
| 4912 | |
| 4913 int os::Solaris::_dev_zero_fd = -1; | |
| 4914 | |
| 4915 // this is called _before_ the global arguments have been parsed | |
| 4916 void os::init(void) { | |
| 4917 _initial_pid = getpid(); | |
| 4918 | |
| 4919 max_hrtime = first_hrtime = gethrtime(); | |
| 4920 | |
| 4921 init_random(1234567); | |
| 4922 | |
| 4923 page_size = sysconf(_SC_PAGESIZE); | |
| 4924 if (page_size == -1) | |
|
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1353
diff
changeset
|
4925 fatal(err_msg("os_solaris.cpp: os::init: sysconf failed (%s)", |
|
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1353
diff
changeset
|
4926 strerror(errno))); |
| 0 | 4927 init_page_sizes((size_t) page_size); |
| 4928 | |
| 4929 Solaris::initialize_system_info(); | |
| 4930 | |
|
641
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4931 // 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
|
4932 // if we need them. |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4933 Solaris::misc_sym_init(); |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4934 |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4935 int fd = ::open("/dev/zero", O_RDWR); |
| 0 | 4936 if (fd < 0) { |
|
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1353
diff
changeset
|
4937 fatal(err_msg("os::init: cannot open /dev/zero (%s)", strerror(errno))); |
| 0 | 4938 } else { |
| 4939 Solaris::set_dev_zero_fd(fd); | |
| 4940 | |
| 4941 // Close on exec, child won't inherit. | |
| 4942 fcntl(fd, F_SETFD, FD_CLOEXEC); | |
| 4943 } | |
| 4944 | |
| 4945 clock_tics_per_sec = CLK_TCK; | |
| 4946 | |
| 4947 // check if dladdr1() exists; dladdr1 can provide more information than | |
| 4948 // dladdr for os::dll_address_to_function_name. It comes with SunOS 5.9 | |
| 4949 // and is available on linker patches for 5.7 and 5.8. | |
| 4950 // libdl.so must have been loaded, this call is just an entry lookup | |
| 4951 void * hdl = dlopen("libdl.so", RTLD_NOW); | |
| 4952 if (hdl) | |
| 4953 dladdr1_func = CAST_TO_FN_PTR(dladdr1_func_type, dlsym(hdl, "dladdr1")); | |
| 4954 | |
| 4955 // (Solaris only) this switches to calls that actually do locking. | |
| 4956 ThreadCritical::initialize(); | |
| 4957 | |
| 4958 main_thread = thr_self(); | |
| 4959 | |
| 4960 // Constant minimum stack size allowed. It must be at least | |
| 4961 // the minimum of what the OS supports (thr_min_stack()), and | |
| 4962 // enough to allow the thread to get to user bytecode execution. | |
| 4963 Solaris::min_stack_allowed = MAX2(thr_min_stack(), Solaris::min_stack_allowed); | |
| 4964 // If the pagesize of the VM is greater than 8K determine the appropriate | |
| 4965 // number of initial guard pages. The user can change this with the | |
| 4966 // command line arguments, if needed. | |
| 4967 if (vm_page_size() > 8*K) { | |
| 4968 StackYellowPages = 1; | |
| 4969 StackRedPages = 1; | |
| 4970 StackShadowPages = round_to((StackShadowPages*8*K), vm_page_size()) / vm_page_size(); | |
| 4971 } | |
| 4972 } | |
| 4973 | |
| 4974 // To install functions for atexit system call | |
| 4975 extern "C" { | |
| 4976 static void perfMemory_exit_helper() { | |
| 4977 perfMemory_exit(); | |
| 4978 } | |
| 4979 } | |
| 4980 | |
| 4981 // this is called _after_ the global arguments have been parsed | |
| 4982 jint os::init_2(void) { | |
| 4983 // try to enable extended file IO ASAP, see 6431278 | |
| 4984 os::Solaris::try_enable_extended_io(); | |
| 4985 | |
| 4986 // Allocate a single page and mark it as readable for safepoint polling. Also | |
| 4987 // use this first mmap call to check support for MAP_ALIGN. | |
| 4988 address polling_page = (address)Solaris::mmap_chunk((char*)page_size, | |
| 4989 page_size, | |
| 4990 MAP_PRIVATE | MAP_ALIGN, | |
| 4991 PROT_READ); | |
| 4992 if (polling_page == NULL) { | |
| 4993 has_map_align = false; | |
| 4994 polling_page = (address)Solaris::mmap_chunk(NULL, page_size, MAP_PRIVATE, | |
| 4995 PROT_READ); | |
| 4996 } | |
| 4997 | |
| 4998 os::set_polling_page(polling_page); | |
| 4999 | |
| 5000 #ifndef PRODUCT | |
| 5001 if( Verbose && PrintMiscellaneous ) | |
| 5002 tty->print("[SafePoint Polling address: " INTPTR_FORMAT "]\n", (intptr_t)polling_page); | |
| 5003 #endif | |
| 5004 | |
| 5005 if (!UseMembar) { | |
| 5006 address mem_serialize_page = (address)Solaris::mmap_chunk( NULL, page_size, MAP_PRIVATE, PROT_READ | PROT_WRITE ); | |
| 5007 guarantee( mem_serialize_page != NULL, "mmap Failed for memory serialize page"); | |
| 5008 os::set_memory_serialize_page( mem_serialize_page ); | |
| 5009 | |
| 5010 #ifndef PRODUCT | |
| 5011 if(Verbose && PrintMiscellaneous) | |
| 5012 tty->print("[Memory Serialize Page address: " INTPTR_FORMAT "]\n", (intptr_t)mem_serialize_page); | |
| 5013 #endif | |
|
12233
40136aa2cdb1
8010722: assert: failed: heap size is too big for compressed oops
tschatzl
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12110
diff
changeset
|
5014 } |
| 0 | 5015 |
| 5016 // Check minimum allowable stack size for thread creation and to initialize | |
| 5017 // the java system classes, including StackOverflowError - depends on page | |
| 5018 // 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
|
5019 // Add in 2*BytesPerWord times page size to account for VM stack during |
| 0 | 5020 // 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
|
5021 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
|
5022 (size_t)(StackYellowPages+StackRedPages+StackShadowPages+ |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
5023 2*BytesPerWord COMPILER2_PRESENT(+1)) * page_size); |
| 0 | 5024 |
| 5025 size_t threadStackSizeInBytes = ThreadStackSize * K; | |
| 5026 if (threadStackSizeInBytes != 0 && | |
|
1867
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
5027 threadStackSizeInBytes < os::Solaris::min_stack_allowed) { |
| 0 | 5028 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
|
5029 os::Solaris::min_stack_allowed/K); |
| 0 | 5030 return JNI_ERR; |
| 5031 } | |
| 5032 | |
| 5033 // For 64kbps there will be a 64kb page size, which makes | |
| 5034 // the usable default stack size quite a bit less. Increase the | |
| 5035 // stack for 64kb (or any > than 8kb) pages, this increases | |
| 5036 // virtual memory fragmentation (since we're not creating the | |
| 5037 // stack on a power of 2 boundary. The real fix for this | |
| 5038 // should be to fix the guard page mechanism. | |
| 5039 | |
| 5040 if (vm_page_size() > 8*K) { | |
| 5041 threadStackSizeInBytes = (threadStackSizeInBytes != 0) | |
| 5042 ? threadStackSizeInBytes + | |
| 5043 ((StackYellowPages + StackRedPages) * vm_page_size()) | |
| 5044 : 0; | |
| 5045 ThreadStackSize = threadStackSizeInBytes/K; | |
| 5046 } | |
| 5047 | |
| 5048 // Make the stack size a multiple of the page size so that | |
| 5049 // the yellow/red zones can be guarded. | |
| 5050 JavaThread::set_stack_size_at_create(round_to(threadStackSizeInBytes, | |
| 5051 vm_page_size())); | |
| 5052 | |
| 5053 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
|
5054 |
| 0 | 5055 if (UseNUMA) { |
|
462
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5056 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
|
5057 UseNUMA = false; |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5058 } else { |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5059 size_t lgrp_limit = os::numa_get_groups_num(); |
| 6197 | 5060 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
|
5061 size_t lgrp_num = os::numa_get_leaf_groups(lgrp_ids, lgrp_limit); |
| 6197 | 5062 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
|
5063 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
|
5064 // 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
|
5065 UseNUMA = false; |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5066 } |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5067 } |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5068 if (!UseNUMA && ForceNUMA) { |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5069 UseNUMA = true; |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5070 } |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5071 } |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5072 |
| 0 | 5073 Solaris::signal_sets_init(); |
| 5074 Solaris::init_signal_mem(); | |
| 5075 Solaris::install_signal_handlers(); | |
| 5076 | |
| 5077 if (libjsigversion < JSIG_VERSION_1_4_1) { | |
| 5078 Maxlibjsigsigs = OLDMAXSIGNUM; | |
| 5079 } | |
| 5080 | |
| 5081 // initialize synchronization primitives to use either thread or | |
| 5082 // lwp synchronization (controlled by UseLWPSynchronization) | |
| 5083 Solaris::synchronization_init(); | |
| 5084 | |
| 5085 if (MaxFDLimit) { | |
| 5086 // set the number of file descriptors to max. print out error | |
| 5087 // if getrlimit/setrlimit fails but continue regardless. | |
| 5088 struct rlimit nbr_files; | |
| 5089 int status = getrlimit(RLIMIT_NOFILE, &nbr_files); | |
| 5090 if (status != 0) { | |
| 5091 if (PrintMiscellaneous && (Verbose || WizardMode)) | |
| 5092 perror("os::init_2 getrlimit failed"); | |
| 5093 } else { | |
| 5094 nbr_files.rlim_cur = nbr_files.rlim_max; | |
| 5095 status = setrlimit(RLIMIT_NOFILE, &nbr_files); | |
| 5096 if (status != 0) { | |
| 5097 if (PrintMiscellaneous && (Verbose || WizardMode)) | |
| 5098 perror("os::init_2 setrlimit failed"); | |
| 5099 } | |
| 5100 } | |
| 5101 } | |
| 5102 | |
| 5103 // Calculate theoretical max. size of Threads to guard gainst | |
| 5104 // artifical out-of-memory situations, where all available address- | |
| 5105 // space has been reserved by thread stacks. Default stack size is 1Mb. | |
| 5106 size_t pre_thread_stack_size = (JavaThread::stack_size_at_create()) ? | |
| 5107 JavaThread::stack_size_at_create() : (1*K*K); | |
| 5108 assert(pre_thread_stack_size != 0, "Must have a stack"); | |
| 5109 // Solaris has a maximum of 4Gb of user programs. Calculate the thread limit when | |
| 5110 // we should start doing Virtual Memory banging. Currently when the threads will | |
| 5111 // have used all but 200Mb of space. | |
| 5112 size_t max_address_space = ((unsigned int)4 * K * K * K) - (200 * K * K); | |
| 5113 Solaris::_os_thread_limit = max_address_space / pre_thread_stack_size; | |
| 5114 | |
| 5115 // at-exit methods are called in the reverse order of their registration. | |
| 5116 // In Solaris 7 and earlier, atexit functions are called on return from | |
| 5117 // main or as a result of a call to exit(3C). There can be only 32 of | |
| 5118 // these functions registered and atexit() does not set errno. In Solaris | |
| 5119 // 8 and later, there is no limit to the number of functions registered | |
| 5120 // and atexit() sets errno. In addition, in Solaris 8 and later, atexit | |
| 5121 // functions are called upon dlclose(3DL) in addition to return from main | |
| 5122 // and exit(3C). | |
| 5123 | |
| 5124 if (PerfAllowAtExitRegistration) { | |
| 5125 // only register atexit functions if PerfAllowAtExitRegistration is set. | |
| 5126 // atexit functions can be delayed until process exit time, which | |
| 5127 // can be problematic for embedded VM situations. Embedded VMs should | |
| 5128 // call DestroyJavaVM() to assure that VM resources are released. | |
| 5129 | |
| 5130 // note: perfMemory_exit_helper atexit function may be removed in | |
| 5131 // the future if the appropriate cleanup code can be added to the | |
| 5132 // VM_Exit VMOperation's doit method. | |
| 5133 if (atexit(perfMemory_exit_helper) != 0) { | |
| 5134 warning("os::init2 atexit(perfMemory_exit_helper) failed"); | |
| 5135 } | |
| 5136 } | |
| 5137 | |
| 5138 // Init pset_loadavg function pointer | |
| 5139 init_pset_getloadavg_ptr(); | |
| 5140 | |
| 5141 return JNI_OK; | |
| 5142 } | |
| 5143 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
5144 void os::init_3(void) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
5145 return; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
5146 } |
| 0 | 5147 |
| 5148 // Mark the polling page as unreadable | |
| 5149 void os::make_polling_page_unreadable(void) { | |
| 5150 if( mprotect((char *)_polling_page, page_size, PROT_NONE) != 0 ) | |
| 5151 fatal("Could not disable polling page"); | |
| 5152 }; | |
| 5153 | |
| 5154 // Mark the polling page as readable | |
| 5155 void os::make_polling_page_readable(void) { | |
| 5156 if( mprotect((char *)_polling_page, page_size, PROT_READ) != 0 ) | |
| 5157 fatal("Could not enable polling page"); | |
| 5158 }; | |
| 5159 | |
| 5160 // OS interface. | |
| 5161 | |
| 5162 bool os::check_heap(bool force) { return true; } | |
| 5163 | |
| 5164 typedef int (*vsnprintf_t)(char* buf, size_t count, const char* fmt, va_list argptr); | |
| 5165 static vsnprintf_t sol_vsnprintf = NULL; | |
| 5166 | |
| 5167 int local_vsnprintf(char* buf, size_t count, const char* fmt, va_list argptr) { | |
| 5168 if (!sol_vsnprintf) { | |
| 5169 //search for the named symbol in the objects that were loaded after libjvm | |
| 5170 void* where = RTLD_NEXT; | |
| 5171 if ((sol_vsnprintf = CAST_TO_FN_PTR(vsnprintf_t, dlsym(where, "__vsnprintf"))) == NULL) | |
| 5172 sol_vsnprintf = CAST_TO_FN_PTR(vsnprintf_t, dlsym(where, "vsnprintf")); | |
| 5173 if (!sol_vsnprintf){ | |
| 5174 //search for the named symbol in the objects that were loaded before libjvm | |
| 5175 where = RTLD_DEFAULT; | |
| 5176 if ((sol_vsnprintf = CAST_TO_FN_PTR(vsnprintf_t, dlsym(where, "__vsnprintf"))) == NULL) | |
| 5177 sol_vsnprintf = CAST_TO_FN_PTR(vsnprintf_t, dlsym(where, "vsnprintf")); | |
| 5178 assert(sol_vsnprintf != NULL, "vsnprintf not found"); | |
| 5179 } | |
| 5180 } | |
| 5181 return (*sol_vsnprintf)(buf, count, fmt, argptr); | |
| 5182 } | |
| 5183 | |
| 5184 | |
| 5185 // Is a (classpath) directory empty? | |
| 5186 bool os::dir_is_empty(const char* path) { | |
| 5187 DIR *dir = NULL; | |
| 5188 struct dirent *ptr; | |
| 5189 | |
| 5190 dir = opendir(path); | |
| 5191 if (dir == NULL) return true; | |
| 5192 | |
| 5193 /* Scan the directory */ | |
| 5194 bool result = true; | |
| 5195 char buf[sizeof(struct dirent) + MAX_PATH]; | |
| 5196 struct dirent *dbuf = (struct dirent *) buf; | |
| 5197 while (result && (ptr = readdir(dir, dbuf)) != NULL) { | |
| 5198 if (strcmp(ptr->d_name, ".") != 0 && strcmp(ptr->d_name, "..") != 0) { | |
| 5199 result = false; | |
| 5200 } | |
| 5201 } | |
| 5202 closedir(dir); | |
| 5203 return result; | |
| 5204 } | |
| 5205 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5206 // 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
|
5207 // from src/solaris/hpi/src/system_md.c |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5208 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5209 #ifndef O_DELETE |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5210 #define O_DELETE 0x10000 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5211 #endif |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5212 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5213 // 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
|
5214 // 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
|
5215 // 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
|
5216 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5217 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
|
5218 if (strlen(path) > MAX_PATH - 1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5219 errno = ENAMETOOLONG; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5220 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5221 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5222 int fd; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5223 int o_delete = (oflag & O_DELETE); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5224 oflag = oflag & ~O_DELETE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5225 |
| 2097 | 5226 fd = ::open64(path, oflag, mode); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5227 if (fd == -1) return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5228 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5229 //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
|
5230 { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5231 struct stat64 buf64; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5232 int ret = ::fstat64(fd, &buf64); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5233 int st_mode = buf64.st_mode; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5234 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5235 if (ret != -1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5236 if ((st_mode & S_IFMT) == S_IFDIR) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5237 errno = EISDIR; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5238 ::close(fd); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5239 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5240 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5241 } else { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5242 ::close(fd); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5243 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5244 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5245 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5246 /* |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5247 * 32-bit Solaris systems suffer from: |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5248 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5249 * - 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
|
5250 * 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
|
5251 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5252 * - 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
|
5253 * 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
|
5254 * 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
|
5255 * 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
|
5256 * 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
|
5257 * 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
|
5258 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5259 * We attempt to make everything work anyways by: |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5260 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5261 * - 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
|
5262 * 256 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5263 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5264 * - 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
|
5265 * 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
|
5266 * 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
|
5267 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5268 * - 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
|
5269 * 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
|
5270 * 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
|
5271 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5272 * See: |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5273 * 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
|
5274 * 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
|
5275 * 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
|
5276 * enable_extended_FILE_stdio() in VM initialisation |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5277 * Giri Mandalika's blog |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5278 * 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
|
5279 */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5280 #ifndef _LP64 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5281 if ((!enabled_extended_FILE_stdio) && fd < 256) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5282 int newfd = ::fcntl(fd, F_DUPFD, 256); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5283 if (newfd != -1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5284 ::close(fd); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5285 fd = newfd; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5286 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5287 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5288 #endif // 32-bit Solaris |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5289 /* |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5290 * 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
|
5291 * specifically destined for a subprocess should have the |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5292 * 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
|
5293 * 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
|
5294 * 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
|
5295 * UNIXProcess.c), and this in turn might: |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5296 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5297 * - 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
|
5298 * descriptors, resulting in mysterious hangs, or |
|
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 * - 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
|
5301 * suffering from bug 1085341. |
|
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 * (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
|
5304 * design flaw) |
|
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 * See: |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5307 * 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
|
5308 * 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
|
5309 * 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
|
5310 */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5311 #ifdef FD_CLOEXEC |
|
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 int flags = ::fcntl(fd, F_GETFD); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5314 if (flags != -1) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5315 ::fcntl(fd, F_SETFD, flags | FD_CLOEXEC); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5316 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5317 #endif |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5318 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5319 if (o_delete != 0) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5320 ::unlink(path); |
|
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 return fd; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5323 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5324 |
| 0 | 5325 // create binary file, rewriting existing file if required |
| 5326 int os::create_binary_file(const char* path, bool rewrite_existing) { | |
| 5327 int oflags = O_WRONLY | O_CREAT; | |
| 5328 if (!rewrite_existing) { | |
| 5329 oflags |= O_EXCL; | |
| 5330 } | |
| 5331 return ::open64(path, oflags, S_IREAD | S_IWRITE); | |
| 5332 } | |
| 5333 | |
| 5334 // return current position of file pointer | |
| 5335 jlong os::current_file_offset(int fd) { | |
| 5336 return (jlong)::lseek64(fd, (off64_t)0, SEEK_CUR); | |
| 5337 } | |
| 5338 | |
| 5339 // move file pointer to the specified offset | |
| 5340 jlong os::seek_to_file_offset(int fd, jlong offset) { | |
| 5341 return (jlong)::lseek64(fd, (off64_t)offset, SEEK_SET); | |
| 5342 } | |
| 5343 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5344 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
|
5345 return (jlong) ::lseek64(fd, offset, whence); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5346 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5347 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5348 char * os::native_path(char *path) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5349 return path; |
|
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 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5352 int os::ftruncate(int fd, jlong length) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5353 return ::ftruncate64(fd, length); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5354 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5355 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5356 int os::fsync(int fd) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5357 RESTARTABLE_RETURN_INT(::fsync(fd)); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5358 } |
|
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 int os::available(int fd, jlong *bytes) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5361 jlong cur, end; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5362 int mode; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5363 struct stat64 buf64; |
|
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 if (::fstat64(fd, &buf64) >= 0) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5366 mode = buf64.st_mode; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5367 if (S_ISCHR(mode) || S_ISFIFO(mode) || S_ISSOCK(mode)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5368 /* |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5369 * XXX: is the following call interruptible? If so, this might |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5370 * need to go through the INTERRUPT_IO() wrapper as for other |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5371 * blocking, interruptible calls in this file. |
|
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 int n,ioctl_return; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5374 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5375 INTERRUPTIBLE(::ioctl(fd, FIONREAD, &n),ioctl_return,os::Solaris::clear_interrupted); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5376 if (ioctl_return>= 0) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5377 *bytes = n; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5378 return 1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5379 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5380 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5381 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5382 if ((cur = ::lseek64(fd, 0L, SEEK_CUR)) == -1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5383 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5384 } 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
|
5385 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5386 } else if (::lseek64(fd, cur, SEEK_SET) == -1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5387 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5388 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5389 *bytes = end - cur; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5390 return 1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5391 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5392 |
| 0 | 5393 // Map a block of memory. |
| 6197 | 5394 char* os::pd_map_memory(int fd, const char* file_name, size_t file_offset, |
| 0 | 5395 char *addr, size_t bytes, bool read_only, |
| 5396 bool allow_exec) { | |
| 5397 int prot; | |
| 5398 int flags; | |
| 5399 | |
| 5400 if (read_only) { | |
| 5401 prot = PROT_READ; | |
| 5402 flags = MAP_SHARED; | |
| 5403 } else { | |
| 5404 prot = PROT_READ | PROT_WRITE; | |
| 5405 flags = MAP_PRIVATE; | |
| 5406 } | |
| 5407 | |
| 5408 if (allow_exec) { | |
| 5409 prot |= PROT_EXEC; | |
| 5410 } | |
| 5411 | |
| 5412 if (addr != NULL) { | |
| 5413 flags |= MAP_FIXED; | |
| 5414 } | |
| 5415 | |
| 5416 char* mapped_address = (char*)mmap(addr, (size_t)bytes, prot, flags, | |
| 5417 fd, file_offset); | |
| 5418 if (mapped_address == MAP_FAILED) { | |
| 5419 return NULL; | |
| 5420 } | |
| 5421 return mapped_address; | |
| 5422 } | |
| 5423 | |
| 5424 | |
| 5425 // Remap a block of memory. | |
| 6197 | 5426 char* os::pd_remap_memory(int fd, const char* file_name, size_t file_offset, |
| 0 | 5427 char *addr, size_t bytes, bool read_only, |
| 5428 bool allow_exec) { | |
| 5429 // same as map_memory() on this OS | |
| 5430 return os::map_memory(fd, file_name, file_offset, addr, bytes, read_only, | |
| 5431 allow_exec); | |
| 5432 } | |
| 5433 | |
| 5434 | |
| 5435 // Unmap a block of memory. | |
| 6197 | 5436 bool os::pd_unmap_memory(char* addr, size_t bytes) { |
| 0 | 5437 return munmap(addr, bytes) == 0; |
| 5438 } | |
| 5439 | |
| 5440 void os::pause() { | |
| 5441 char filename[MAX_PATH]; | |
| 5442 if (PauseAtStartupFile && PauseAtStartupFile[0]) { | |
| 5443 jio_snprintf(filename, MAX_PATH, PauseAtStartupFile); | |
| 5444 } else { | |
| 5445 jio_snprintf(filename, MAX_PATH, "./vm.paused.%d", current_process_id()); | |
| 5446 } | |
| 5447 | |
| 5448 int fd = ::open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0666); | |
| 5449 if (fd != -1) { | |
| 5450 struct stat buf; | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5451 ::close(fd); |
| 0 | 5452 while (::stat(filename, &buf) == 0) { |
| 5453 (void)::poll(NULL, 0, 100); | |
| 5454 } | |
| 5455 } else { | |
| 5456 jio_fprintf(stderr, | |
| 5457 "Could not open pause file '%s', continuing immediately.\n", filename); | |
| 5458 } | |
| 5459 } | |
| 5460 | |
| 5461 #ifndef PRODUCT | |
| 5462 #ifdef INTERPOSE_ON_SYSTEM_SYNCH_FUNCTIONS | |
| 5463 // Turn this on if you need to trace synch operations. | |
| 5464 // Set RECORD_SYNCH_LIMIT to a large-enough value, | |
| 5465 // and call record_synch_enable and record_synch_disable | |
| 5466 // around the computation of interest. | |
| 5467 | |
| 5468 void record_synch(char* name, bool returning); // defined below | |
| 5469 | |
| 5470 class RecordSynch { | |
| 5471 char* _name; | |
| 5472 public: | |
| 5473 RecordSynch(char* name) :_name(name) | |
| 5474 { record_synch(_name, false); } | |
| 5475 ~RecordSynch() { record_synch(_name, true); } | |
| 5476 }; | |
| 5477 | |
| 5478 #define CHECK_SYNCH_OP(ret, name, params, args, inner) \ | |
| 5479 extern "C" ret name params { \ | |
| 5480 typedef ret name##_t params; \ | |
| 5481 static name##_t* implem = NULL; \ | |
| 5482 static int callcount = 0; \ | |
| 5483 if (implem == NULL) { \ | |
| 5484 implem = (name##_t*) dlsym(RTLD_NEXT, #name); \ | |
| 5485 if (implem == NULL) fatal(dlerror()); \ | |
| 5486 } \ | |
| 5487 ++callcount; \ | |
| 5488 RecordSynch _rs(#name); \ | |
| 5489 inner; \ | |
| 5490 return implem args; \ | |
| 5491 } | |
| 5492 // in dbx, examine callcounts this way: | |
| 5493 // for n in $(eval whereis callcount | awk '{print $2}'); do print $n; done | |
| 5494 | |
| 5495 #define CHECK_POINTER_OK(p) \ | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6200
diff
changeset
|
5496 (!Universe::is_fully_initialized() || !Universe::is_reserved_heap((oop)(p))) |
| 0 | 5497 #define CHECK_MU \ |
| 5498 if (!CHECK_POINTER_OK(mu)) fatal("Mutex must be in C heap only."); | |
| 5499 #define CHECK_CV \ | |
| 5500 if (!CHECK_POINTER_OK(cv)) fatal("Condvar must be in C heap only."); | |
| 5501 #define CHECK_P(p) \ | |
| 5502 if (!CHECK_POINTER_OK(p)) fatal(false, "Pointer must be in C heap only."); | |
| 5503 | |
| 5504 #define CHECK_MUTEX(mutex_op) \ | |
| 5505 CHECK_SYNCH_OP(int, mutex_op, (mutex_t *mu), (mu), CHECK_MU); | |
| 5506 | |
| 5507 CHECK_MUTEX( mutex_lock) | |
| 5508 CHECK_MUTEX( _mutex_lock) | |
| 5509 CHECK_MUTEX( mutex_unlock) | |
| 5510 CHECK_MUTEX(_mutex_unlock) | |
| 5511 CHECK_MUTEX( mutex_trylock) | |
| 5512 CHECK_MUTEX(_mutex_trylock) | |
| 5513 | |
| 5514 #define CHECK_COND(cond_op) \ | |
| 5515 CHECK_SYNCH_OP(int, cond_op, (cond_t *cv, mutex_t *mu), (cv, mu), CHECK_MU;CHECK_CV); | |
| 5516 | |
| 5517 CHECK_COND( cond_wait); | |
| 5518 CHECK_COND(_cond_wait); | |
| 5519 CHECK_COND(_cond_wait_cancel); | |
| 5520 | |
| 5521 #define CHECK_COND2(cond_op) \ | |
| 5522 CHECK_SYNCH_OP(int, cond_op, (cond_t *cv, mutex_t *mu, timestruc_t* ts), (cv, mu, ts), CHECK_MU;CHECK_CV); | |
| 5523 | |
| 5524 CHECK_COND2( cond_timedwait); | |
| 5525 CHECK_COND2(_cond_timedwait); | |
| 5526 CHECK_COND2(_cond_timedwait_cancel); | |
| 5527 | |
| 5528 // do the _lwp_* versions too | |
| 5529 #define mutex_t lwp_mutex_t | |
| 5530 #define cond_t lwp_cond_t | |
| 5531 CHECK_MUTEX( _lwp_mutex_lock) | |
| 5532 CHECK_MUTEX( _lwp_mutex_unlock) | |
| 5533 CHECK_MUTEX( _lwp_mutex_trylock) | |
| 5534 CHECK_MUTEX( __lwp_mutex_lock) | |
| 5535 CHECK_MUTEX( __lwp_mutex_unlock) | |
| 5536 CHECK_MUTEX( __lwp_mutex_trylock) | |
| 5537 CHECK_MUTEX(___lwp_mutex_lock) | |
| 5538 CHECK_MUTEX(___lwp_mutex_unlock) | |
| 5539 | |
| 5540 CHECK_COND( _lwp_cond_wait); | |
| 5541 CHECK_COND( __lwp_cond_wait); | |
| 5542 CHECK_COND(___lwp_cond_wait); | |
| 5543 | |
| 5544 CHECK_COND2( _lwp_cond_timedwait); | |
| 5545 CHECK_COND2( __lwp_cond_timedwait); | |
| 5546 #undef mutex_t | |
| 5547 #undef cond_t | |
| 5548 | |
| 5549 CHECK_SYNCH_OP(int, _lwp_suspend2, (int lwp, int *n), (lwp, n), 0); | |
| 5550 CHECK_SYNCH_OP(int,__lwp_suspend2, (int lwp, int *n), (lwp, n), 0); | |
| 5551 CHECK_SYNCH_OP(int, _lwp_kill, (int lwp, int n), (lwp, n), 0); | |
| 5552 CHECK_SYNCH_OP(int,__lwp_kill, (int lwp, int n), (lwp, n), 0); | |
| 5553 CHECK_SYNCH_OP(int, _lwp_sema_wait, (lwp_sema_t* p), (p), CHECK_P(p)); | |
| 5554 CHECK_SYNCH_OP(int,__lwp_sema_wait, (lwp_sema_t* p), (p), CHECK_P(p)); | |
| 5555 CHECK_SYNCH_OP(int, _lwp_cond_broadcast, (lwp_cond_t* cv), (cv), CHECK_CV); | |
| 5556 CHECK_SYNCH_OP(int,__lwp_cond_broadcast, (lwp_cond_t* cv), (cv), CHECK_CV); | |
| 5557 | |
| 5558 | |
| 5559 // recording machinery: | |
| 5560 | |
| 5561 enum { RECORD_SYNCH_LIMIT = 200 }; | |
| 5562 char* record_synch_name[RECORD_SYNCH_LIMIT]; | |
| 5563 void* record_synch_arg0ptr[RECORD_SYNCH_LIMIT]; | |
| 5564 bool record_synch_returning[RECORD_SYNCH_LIMIT]; | |
| 5565 thread_t record_synch_thread[RECORD_SYNCH_LIMIT]; | |
| 5566 int record_synch_count = 0; | |
| 5567 bool record_synch_enabled = false; | |
| 5568 | |
| 5569 // in dbx, examine recorded data this way: | |
| 5570 // for n in name arg0ptr returning thread; do print record_synch_$n[0..record_synch_count-1]; done | |
| 5571 | |
| 5572 void record_synch(char* name, bool returning) { | |
| 5573 if (record_synch_enabled) { | |
| 5574 if (record_synch_count < RECORD_SYNCH_LIMIT) { | |
| 5575 record_synch_name[record_synch_count] = name; | |
| 5576 record_synch_returning[record_synch_count] = returning; | |
| 5577 record_synch_thread[record_synch_count] = thr_self(); | |
| 5578 record_synch_arg0ptr[record_synch_count] = &name; | |
| 5579 record_synch_count++; | |
| 5580 } | |
| 5581 // put more checking code here: | |
| 5582 // ... | |
| 5583 } | |
| 5584 } | |
| 5585 | |
| 5586 void record_synch_enable() { | |
| 5587 // start collecting trace data, if not already doing so | |
| 5588 if (!record_synch_enabled) record_synch_count = 0; | |
| 5589 record_synch_enabled = true; | |
| 5590 } | |
| 5591 | |
| 5592 void record_synch_disable() { | |
| 5593 // stop collecting trace data | |
| 5594 record_synch_enabled = false; | |
| 5595 } | |
| 5596 | |
| 5597 #endif // INTERPOSE_ON_SYSTEM_SYNCH_FUNCTIONS | |
| 5598 #endif // PRODUCT | |
| 5599 | |
| 5600 const intptr_t thr_time_off = (intptr_t)(&((prusage_t *)(NULL))->pr_utime); | |
| 5601 const intptr_t thr_time_size = (intptr_t)(&((prusage_t *)(NULL))->pr_ttime) - | |
| 5602 (intptr_t)(&((prusage_t *)(NULL))->pr_utime); | |
| 5603 | |
| 5604 | |
| 5605 // JVMTI & JVM monitoring and management support | |
| 5606 // The thread_cpu_time() and current_thread_cpu_time() are only | |
| 5607 // supported if is_thread_cpu_time_supported() returns true. | |
| 5608 // They are not supported on Solaris T1. | |
| 5609 | |
| 5610 // current_thread_cpu_time(bool) and thread_cpu_time(Thread*, bool) | |
| 5611 // are used by JVM M&M and JVMTI to get user+sys or user CPU time | |
| 5612 // of a thread. | |
| 5613 // | |
| 5614 // current_thread_cpu_time() and thread_cpu_time(Thread *) | |
| 5615 // returns the fast estimate available on the platform. | |
| 5616 | |
| 5617 // hrtime_t gethrvtime() return value includes | |
| 5618 // user time but does not include system time | |
| 5619 jlong os::current_thread_cpu_time() { | |
| 5620 return (jlong) gethrvtime(); | |
| 5621 } | |
| 5622 | |
| 5623 jlong os::thread_cpu_time(Thread *thread) { | |
| 5624 // return user level CPU time only to be consistent with | |
| 5625 // what current_thread_cpu_time returns. | |
| 5626 // thread_cpu_time_info() must be changed if this changes | |
| 5627 return os::thread_cpu_time(thread, false /* user time only */); | |
| 5628 } | |
| 5629 | |
| 5630 jlong os::current_thread_cpu_time(bool user_sys_cpu_time) { | |
| 5631 if (user_sys_cpu_time) { | |
| 5632 return os::thread_cpu_time(Thread::current(), user_sys_cpu_time); | |
| 5633 } else { | |
| 5634 return os::current_thread_cpu_time(); | |
| 5635 } | |
| 5636 } | |
| 5637 | |
| 5638 jlong os::thread_cpu_time(Thread *thread, bool user_sys_cpu_time) { | |
| 5639 char proc_name[64]; | |
| 5640 int count; | |
| 5641 prusage_t prusage; | |
| 5642 jlong lwp_time; | |
| 5643 int fd; | |
| 5644 | |
| 5645 sprintf(proc_name, "/proc/%d/lwp/%d/lwpusage", | |
| 5646 getpid(), | |
| 5647 thread->osthread()->lwp_id()); | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5648 fd = ::open(proc_name, O_RDONLY); |
| 0 | 5649 if ( fd == -1 ) return -1; |
| 5650 | |
| 5651 do { | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5652 count = ::pread(fd, |
| 0 | 5653 (void *)&prusage.pr_utime, |
| 5654 thr_time_size, | |
| 5655 thr_time_off); | |
| 5656 } while (count < 0 && errno == EINTR); | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5657 ::close(fd); |
| 0 | 5658 if ( count < 0 ) return -1; |
| 5659 | |
| 5660 if (user_sys_cpu_time) { | |
| 5661 // user + system CPU time | |
| 5662 lwp_time = (((jlong)prusage.pr_stime.tv_sec + | |
| 5663 (jlong)prusage.pr_utime.tv_sec) * (jlong)1000000000) + | |
| 5664 (jlong)prusage.pr_stime.tv_nsec + | |
| 5665 (jlong)prusage.pr_utime.tv_nsec; | |
| 5666 } else { | |
| 5667 // user level CPU time only | |
| 5668 lwp_time = ((jlong)prusage.pr_utime.tv_sec * (jlong)1000000000) + | |
| 5669 (jlong)prusage.pr_utime.tv_nsec; | |
| 5670 } | |
| 5671 | |
| 5672 return(lwp_time); | |
| 5673 } | |
| 5674 | |
| 5675 void os::current_thread_cpu_time_info(jvmtiTimerInfo *info_ptr) { | |
| 5676 info_ptr->max_value = ALL_64_BITS; // will not wrap in less than 64 bits | |
| 5677 info_ptr->may_skip_backward = false; // elapsed time not wall time | |
| 5678 info_ptr->may_skip_forward = false; // elapsed time not wall time | |
| 5679 info_ptr->kind = JVMTI_TIMER_USER_CPU; // only user time is returned | |
| 5680 } | |
| 5681 | |
| 5682 void os::thread_cpu_time_info(jvmtiTimerInfo *info_ptr) { | |
| 5683 info_ptr->max_value = ALL_64_BITS; // will not wrap in less than 64 bits | |
| 5684 info_ptr->may_skip_backward = false; // elapsed time not wall time | |
| 5685 info_ptr->may_skip_forward = false; // elapsed time not wall time | |
| 5686 info_ptr->kind = JVMTI_TIMER_USER_CPU; // only user time is returned | |
| 5687 } | |
| 5688 | |
| 5689 bool os::is_thread_cpu_time_supported() { | |
| 5690 if ( os::Solaris::T2_libthread() || UseBoundThreads ) { | |
| 5691 return true; | |
| 5692 } else { | |
| 5693 return false; | |
| 5694 } | |
| 5695 } | |
| 5696 | |
| 5697 // System loadavg support. Returns -1 if load average cannot be obtained. | |
| 5698 // Return the load average for our processor set if the primitive exists | |
| 5699 // (Solaris 9 and later). Otherwise just return system wide loadavg. | |
| 5700 int os::loadavg(double loadavg[], int nelem) { | |
| 5701 if (pset_getloadavg_ptr != NULL) { | |
| 5702 return (*pset_getloadavg_ptr)(PS_MYID, loadavg, nelem); | |
| 5703 } else { | |
| 5704 return ::getloadavg(loadavg, nelem); | |
| 5705 } | |
| 5706 } | |
| 5707 | |
| 5708 //--------------------------------------------------------------------------------- | |
| 5709 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
5710 bool os::find(address addr, outputStream* st) { |
| 0 | 5711 Dl_info dlinfo; |
| 5712 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
|
5713 if (dladdr(addr, &dlinfo) != 0) { |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
5714 st->print(PTR_FORMAT ": ", addr); |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
5715 if (dlinfo.dli_sname != NULL && dlinfo.dli_saddr != NULL) { |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
5716 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
|
5717 } else if (dlinfo.dli_fbase != NULL) |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
5718 st->print("<offset %#lx>", addr-(intptr_t)dlinfo.dli_fbase); |
| 0 | 5719 else |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
5720 st->print("<absolute address>"); |
|
11092
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
5721 if (dlinfo.dli_fname != NULL) { |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
5722 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
|
5723 } |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
5724 if (dlinfo.dli_fbase != NULL) { |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
5725 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
|
5726 } |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
5727 st->cr(); |
| 0 | 5728 |
| 5729 if (Verbose) { | |
| 5730 // decode some bytes around the PC | |
|
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
9059
diff
changeset
|
5731 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
|
5732 address end = clamp_address_in_page(addr+40, addr, os::vm_page_size()); |
| 0 | 5733 address lowest = (address) dlinfo.dli_sname; |
| 5734 if (!lowest) lowest = (address) dlinfo.dli_fbase; | |
| 5735 if (begin < lowest) begin = lowest; | |
| 5736 Dl_info dlinfo2; | |
|
11092
59b052799158
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|
5737 if (dladdr(end, &dlinfo2) != 0 && dlinfo2.dli_saddr != dlinfo.dli_saddr |
| 0 | 5738 && end > dlinfo2.dli_saddr && dlinfo2.dli_saddr > begin) |
| 5739 end = (address) dlinfo2.dli_saddr; | |
|
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|
5740 Disassembler::decode(begin, end, st); |
| 0 | 5741 } |
| 5742 return true; | |
| 5743 } | |
| 5744 return false; | |
| 5745 } | |
| 5746 | |
| 5747 // Following function has been added to support HotSparc's libjvm.so running | |
| 5748 // under Solaris production JDK 1.2.2 / 1.3.0. These came from | |
| 5749 // src/solaris/hpi/native_threads in the EVM codebase. | |
| 5750 // | |
| 5751 // NOTE: This is no longer needed in the 1.3.1 and 1.4 production release | |
| 5752 // libraries and should thus be removed. We will leave it behind for a while | |
| 5753 // until we no longer want to able to run on top of 1.3.0 Solaris production | |
| 5754 // JDK. See 4341971. | |
| 5755 | |
| 5756 #define STACK_SLACK 0x800 | |
| 5757 | |
| 5758 extern "C" { | |
| 5759 intptr_t sysThreadAvailableStackWithSlack() { | |
| 5760 stack_t st; | |
| 5761 intptr_t retval, stack_top; | |
| 5762 retval = thr_stksegment(&st); | |
| 5763 assert(retval == 0, "incorrect return value from thr_stksegment"); | |
| 5764 assert((address)&st < (address)st.ss_sp, "Invalid stack base returned"); | |
| 5765 assert((address)&st > (address)st.ss_sp-st.ss_size, "Invalid stack size returned"); | |
| 5766 stack_top=(intptr_t)st.ss_sp-st.ss_size; | |
| 5767 return ((intptr_t)&stack_top - stack_top - STACK_SLACK); | |
| 5768 } | |
| 5769 } | |
| 5770 | |
| 5771 // ObjectMonitor park-unpark infrastructure ... | |
| 5772 // | |
| 5773 // We implement Solaris and Linux PlatformEvents with the | |
| 5774 // obvious condvar-mutex-flag triple. | |
| 5775 // Another alternative that works quite well is pipes: | |
| 5776 // Each PlatformEvent consists of a pipe-pair. | |
| 5777 // The thread associated with the PlatformEvent | |
| 5778 // calls park(), which reads from the input end of the pipe. | |
| 5779 // Unpark() writes into the other end of the pipe. | |
| 5780 // The write-side of the pipe must be set NDELAY. | |
| 5781 // Unfortunately pipes consume a large # of handles. | |
| 5782 // Native solaris lwp_park() and lwp_unpark() work nicely, too. | |
| 5783 // Using pipes for the 1st few threads might be workable, however. | |
| 5784 // | |
| 5785 // park() is permitted to return spuriously. | |
| 5786 // Callers of park() should wrap the call to park() in | |
| 5787 // an appropriate loop. A litmus test for the correct | |
| 5788 // usage of park is the following: if park() were modified | |
| 5789 // to immediately return 0 your code should still work, | |
| 5790 // albeit degenerating to a spin loop. | |
| 5791 // | |
| 5792 // An interesting optimization for park() is to use a trylock() | |
| 5793 // to attempt to acquire the mutex. If the trylock() fails | |
| 5794 // then we know that a concurrent unpark() operation is in-progress. | |
| 5795 // in that case the park() code could simply set _count to 0 | |
| 5796 // and return immediately. The subsequent park() operation *might* | |
| 5797 // return immediately. That's harmless as the caller of park() is | |
| 5798 // expected to loop. By using trylock() we will have avoided a | |
| 5799 // avoided a context switch caused by contention on the per-thread mutex. | |
| 5800 // | |
| 5801 // TODO-FIXME: | |
| 5802 // 1. Reconcile Doug's JSR166 j.u.c park-unpark with the | |
| 5803 // objectmonitor implementation. | |
| 5804 // 2. Collapse the JSR166 parker event, and the | |
| 5805 // objectmonitor ParkEvent into a single "Event" construct. | |
| 5806 // 3. In park() and unpark() add: | |
| 5807 // assert (Thread::current() == AssociatedWith). | |
| 5808 // 4. add spurious wakeup injection on a -XX:EarlyParkReturn=N switch. | |
| 5809 // 1-out-of-N park() operations will return immediately. | |
| 5810 // | |
| 5811 // _Event transitions in park() | |
| 5812 // -1 => -1 : illegal | |
| 5813 // 1 => 0 : pass - return immediately | |
| 5814 // 0 => -1 : block | |
| 5815 // | |
| 5816 // _Event serves as a restricted-range semaphore. | |
| 5817 // | |
| 5818 // Another possible encoding of _Event would be with | |
| 5819 // explicit "PARKED" == 01b and "SIGNALED" == 10b bits. | |
| 5820 // | |
| 5821 // TODO-FIXME: add DTRACE probes for: | |
| 5822 // 1. Tx parks | |
| 5823 // 2. Ty unparks Tx | |
| 5824 // 3. Tx resumes from park | |
| 5825 | |
| 5826 | |
| 5827 // value determined through experimentation | |
| 5828 #define ROUNDINGFIX 11 | |
| 5829 | |
| 5830 // utility to compute the abstime argument to timedwait. | |
| 5831 // TODO-FIXME: switch from compute_abstime() to unpackTime(). | |
| 5832 | |
| 5833 static timestruc_t* compute_abstime(timestruc_t* abstime, jlong millis) { | |
| 5834 // millis is the relative timeout time | |
| 5835 // abstime will be the absolute timeout time | |
| 5836 if (millis < 0) millis = 0; | |
| 5837 struct timeval now; | |
| 5838 int status = gettimeofday(&now, NULL); | |
| 5839 assert(status == 0, "gettimeofday"); | |
| 5840 jlong seconds = millis / 1000; | |
| 5841 jlong max_wait_period; | |
| 5842 | |
| 5843 if (UseLWPSynchronization) { | |
| 5844 // forward port of fix for 4275818 (not sleeping long enough) | |
| 5845 // There was a bug in Solaris 6, 7 and pre-patch 5 of 8 where | |
| 5846 // _lwp_cond_timedwait() used a round_down algorithm rather | |
| 5847 // than a round_up. For millis less than our roundfactor | |
| 5848 // it rounded down to 0 which doesn't meet the spec. | |
| 5849 // For millis > roundfactor we may return a bit sooner, but | |
| 5850 // since we can not accurately identify the patch level and | |
| 5851 // this has already been fixed in Solaris 9 and 8 we will | |
| 5852 // leave it alone rather than always rounding down. | |
| 5853 | |
| 5854 if (millis > 0 && millis < ROUNDINGFIX) millis = ROUNDINGFIX; | |
| 5855 // It appears that when we go directly through Solaris _lwp_cond_timedwait() | |
| 5856 // the acceptable max time threshold is smaller than for libthread on 2.5.1 and 2.6 | |
| 5857 max_wait_period = 21000000; | |
| 5858 } else { | |
| 5859 max_wait_period = 50000000; | |
| 5860 } | |
| 5861 millis %= 1000; | |
| 5862 if (seconds > max_wait_period) { // see man cond_timedwait(3T) | |
| 5863 seconds = max_wait_period; | |
| 5864 } | |
| 5865 abstime->tv_sec = now.tv_sec + seconds; | |
| 5866 long usec = now.tv_usec + millis * 1000; | |
| 5867 if (usec >= 1000000) { | |
| 5868 abstime->tv_sec += 1; | |
| 5869 usec -= 1000000; | |
| 5870 } | |
| 5871 abstime->tv_nsec = usec * 1000; | |
| 5872 return abstime; | |
| 5873 } | |
| 5874 | |
| 5875 // Test-and-clear _Event, always leaves _Event set to 0, returns immediately. | |
| 5876 // Conceptually TryPark() should be equivalent to park(0). | |
| 5877 | |
| 5878 int os::PlatformEvent::TryPark() { | |
| 5879 for (;;) { | |
| 5880 const int v = _Event ; | |
| 5881 guarantee ((v == 0) || (v == 1), "invariant") ; | |
| 5882 if (Atomic::cmpxchg (0, &_Event, v) == v) return v ; | |
| 5883 } | |
| 5884 } | |
| 5885 | |
| 5886 void os::PlatformEvent::park() { // AKA: down() | |
| 5887 // Invariant: Only the thread associated with the Event/PlatformEvent | |
| 5888 // may call park(). | |
| 5889 int v ; | |
| 5890 for (;;) { | |
| 5891 v = _Event ; | |
| 5892 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break ; | |
| 5893 } | |
| 5894 guarantee (v >= 0, "invariant") ; | |
| 5895 if (v == 0) { | |
| 5896 // Do this the hard way by blocking ... | |
| 5897 // See http://monaco.sfbay/detail.jsf?cr=5094058. | |
| 5898 // TODO-FIXME: for Solaris SPARC set fprs.FEF=0 prior to parking. | |
| 5899 // Only for SPARC >= V8PlusA | |
| 5900 #if defined(__sparc) && defined(COMPILER2) | |
| 5901 if (ClearFPUAtPark) { _mark_fpu_nosave() ; } | |
| 5902 #endif | |
| 5903 int status = os::Solaris::mutex_lock(_mutex); | |
| 5904 assert_status(status == 0, status, "mutex_lock"); | |
| 5905 guarantee (_nParked == 0, "invariant") ; | |
| 5906 ++ _nParked ; | |
| 5907 while (_Event < 0) { | |
| 5908 // for some reason, under 2.7 lwp_cond_wait() may return ETIME ... | |
| 5909 // Treat this the same as if the wait was interrupted | |
| 5910 // With usr/lib/lwp going to kernel, always handle ETIME | |
| 5911 status = os::Solaris::cond_wait(_cond, _mutex); | |
| 5912 if (status == ETIME) status = EINTR ; | |
| 5913 assert_status(status == 0 || status == EINTR, status, "cond_wait"); | |
| 5914 } | |
| 5915 -- _nParked ; | |
| 5916 _Event = 0 ; | |
| 5917 status = os::Solaris::mutex_unlock(_mutex); | |
| 5918 assert_status(status == 0, status, "mutex_unlock"); | |
|
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5919 // Paranoia to ensure our locked and lock-free paths interact |
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5920 // correctly with each other. |
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|
5921 OrderAccess::fence(); |
| 0 | 5922 } |
| 5923 } | |
| 5924 | |
| 5925 int os::PlatformEvent::park(jlong millis) { | |
| 5926 guarantee (_nParked == 0, "invariant") ; | |
| 5927 int v ; | |
| 5928 for (;;) { | |
| 5929 v = _Event ; | |
| 5930 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break ; | |
| 5931 } | |
| 5932 guarantee (v >= 0, "invariant") ; | |
| 5933 if (v != 0) return OS_OK ; | |
| 5934 | |
| 5935 int ret = OS_TIMEOUT; | |
| 5936 timestruc_t abst; | |
| 5937 compute_abstime (&abst, millis); | |
| 5938 | |
| 5939 // See http://monaco.sfbay/detail.jsf?cr=5094058. | |
| 5940 // For Solaris SPARC set fprs.FEF=0 prior to parking. | |
| 5941 // Only for SPARC >= V8PlusA | |
| 5942 #if defined(__sparc) && defined(COMPILER2) | |
| 5943 if (ClearFPUAtPark) { _mark_fpu_nosave() ; } | |
| 5944 #endif | |
| 5945 int status = os::Solaris::mutex_lock(_mutex); | |
| 5946 assert_status(status == 0, status, "mutex_lock"); | |
| 5947 guarantee (_nParked == 0, "invariant") ; | |
| 5948 ++ _nParked ; | |
| 5949 while (_Event < 0) { | |
| 5950 int status = os::Solaris::cond_timedwait(_cond, _mutex, &abst); | |
| 5951 assert_status(status == 0 || status == EINTR || | |
| 5952 status == ETIME || status == ETIMEDOUT, | |
| 5953 status, "cond_timedwait"); | |
| 5954 if (!FilterSpuriousWakeups) break ; // previous semantics | |
| 5955 if (status == ETIME || status == ETIMEDOUT) break ; | |
| 5956 // We consume and ignore EINTR and spurious wakeups. | |
| 5957 } | |
| 5958 -- _nParked ; | |
| 5959 if (_Event >= 0) ret = OS_OK ; | |
| 5960 _Event = 0 ; | |
| 5961 status = os::Solaris::mutex_unlock(_mutex); | |
| 5962 assert_status(status == 0, status, "mutex_unlock"); | |
|
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5963 // Paranoia to ensure our locked and lock-free paths interact |
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5964 // correctly with each other. |
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5965 OrderAccess::fence(); |
| 0 | 5966 return ret; |
| 5967 } | |
| 5968 | |
| 5969 void os::PlatformEvent::unpark() { | |
|
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5970 // Transitions for _Event: |
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5971 // 0 :=> 1 |
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5972 // 1 :=> 1 |
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5973 // -1 :=> either 0 or 1; must signal target thread |
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5974 // That is, we can safely transition _Event from -1 to either |
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5975 // 0 or 1. Forcing 1 is slightly more efficient for back-to-back |
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5976 // unpark() calls. |
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5977 // See also: "Semaphores in Plan 9" by Mullender & Cox |
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5978 // |
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5979 // Note: Forcing a transition from "-1" to "1" on an unpark() means |
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5980 // that it will take two back-to-back park() calls for the owning |
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5981 // thread to block. This has the benefit of forcing a spurious return |
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5982 // from the first park() call after an unpark() call which will help |
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5983 // shake out uses of park() and unpark() without condition variables. |
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5984 |
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5985 if (Atomic::xchg(1, &_Event) >= 0) return; |
| 0 | 5986 |
| 5987 // If the thread associated with the event was parked, wake it. | |
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5988 // Wait for the thread assoc with the PlatformEvent to vacate. |
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5989 int status = os::Solaris::mutex_lock(_mutex); |
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5990 assert_status(status == 0, status, "mutex_lock"); |
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5991 int AnyWaiters = _nParked; |
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5992 status = os::Solaris::mutex_unlock(_mutex); |
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5993 assert_status(status == 0, status, "mutex_unlock"); |
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5994 guarantee(AnyWaiters == 0 || AnyWaiters == 1, "invariant"); |
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5995 if (AnyWaiters != 0) { |
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5996 // We intentional signal *after* dropping the lock |
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5997 // to avoid a common class of futile wakeups. |
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5998 status = os::Solaris::cond_signal(_cond); |
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5999 assert_status(status == 0, status, "cond_signal"); |
| 0 | 6000 } |
| 6001 } | |
| 6002 | |
| 6003 // JSR166 | |
| 6004 // ------------------------------------------------------- | |
| 6005 | |
| 6006 /* | |
| 6007 * The solaris and linux implementations of park/unpark are fairly | |
| 6008 * conservative for now, but can be improved. They currently use a | |
| 6009 * mutex/condvar pair, plus _counter. | |
| 6010 * Park decrements _counter if > 0, else does a condvar wait. Unpark | |
| 6011 * sets count to 1 and signals condvar. Only one thread ever waits | |
| 6012 * on the condvar. Contention seen when trying to park implies that someone | |
| 6013 * is unparking you, so don't wait. And spurious returns are fine, so there | |
| 6014 * is no need to track notifications. | |
| 6015 */ | |
| 6016 | |
| 6017 #define MAX_SECS 100000000 | |
| 6018 /* | |
| 6019 * This code is common to linux and solaris and will be moved to a | |
| 6020 * common place in dolphin. | |
| 6021 * | |
| 6022 * The passed in time value is either a relative time in nanoseconds | |
| 6023 * or an absolute time in milliseconds. Either way it has to be unpacked | |
| 6024 * into suitable seconds and nanoseconds components and stored in the | |
| 6025 * given timespec structure. | |
| 6026 * Given time is a 64-bit value and the time_t used in the timespec is only | |
| 6027 * a signed-32-bit value (except on 64-bit Linux) we have to watch for | |
| 6028 * overflow if times way in the future are given. Further on Solaris versions | |
| 6029 * prior to 10 there is a restriction (see cond_timedwait) that the specified | |
| 6030 * number of seconds, in abstime, is less than current_time + 100,000,000. | |
| 6031 * As it will be 28 years before "now + 100000000" will overflow we can | |
| 6032 * ignore overflow and just impose a hard-limit on seconds using the value | |
| 6033 * of "now + 100,000,000". This places a limit on the timeout of about 3.17 | |
| 6034 * years from "now". | |
| 6035 */ | |
| 6036 static void unpackTime(timespec* absTime, bool isAbsolute, jlong time) { | |
| 6037 assert (time > 0, "convertTime"); | |
| 6038 | |
| 6039 struct timeval now; | |
| 6040 int status = gettimeofday(&now, NULL); | |
| 6041 assert(status == 0, "gettimeofday"); | |
| 6042 | |
| 6043 time_t max_secs = now.tv_sec + MAX_SECS; | |
| 6044 | |
| 6045 if (isAbsolute) { | |
| 6046 jlong secs = time / 1000; | |
| 6047 if (secs > max_secs) { | |
| 6048 absTime->tv_sec = max_secs; | |
| 6049 } | |
| 6050 else { | |
| 6051 absTime->tv_sec = secs; | |
| 6052 } | |
| 6053 absTime->tv_nsec = (time % 1000) * NANOSECS_PER_MILLISEC; | |
| 6054 } | |
| 6055 else { | |
| 6056 jlong secs = time / NANOSECS_PER_SEC; | |
| 6057 if (secs >= MAX_SECS) { | |
| 6058 absTime->tv_sec = max_secs; | |
| 6059 absTime->tv_nsec = 0; | |
| 6060 } | |
| 6061 else { | |
| 6062 absTime->tv_sec = now.tv_sec + secs; | |
| 6063 absTime->tv_nsec = (time % NANOSECS_PER_SEC) + now.tv_usec*1000; | |
| 6064 if (absTime->tv_nsec >= NANOSECS_PER_SEC) { | |
| 6065 absTime->tv_nsec -= NANOSECS_PER_SEC; | |
| 6066 ++absTime->tv_sec; // note: this must be <= max_secs | |
| 6067 } | |
| 6068 } | |
| 6069 } | |
| 6070 assert(absTime->tv_sec >= 0, "tv_sec < 0"); | |
| 6071 assert(absTime->tv_sec <= max_secs, "tv_sec > max_secs"); | |
| 6072 assert(absTime->tv_nsec >= 0, "tv_nsec < 0"); | |
| 6073 assert(absTime->tv_nsec < NANOSECS_PER_SEC, "tv_nsec >= nanos_per_sec"); | |
| 6074 } | |
| 6075 | |
| 6076 void Parker::park(bool isAbsolute, jlong time) { | |
|
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6077 // Ideally we'd do something useful while spinning, such |
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6078 // as calling unpackTime(). |
| 0 | 6079 |
| 6080 // Optional fast-path check: | |
| 6081 // Return immediately if a permit is available. | |
|
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6082 // We depend on Atomic::xchg() having full barrier semantics |
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changeset
|
6083 // since we are doing a lock-free update to _counter. |
|
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
7456
diff
changeset
|
6084 if (Atomic::xchg(0, &_counter) > 0) return; |
| 0 | 6085 |
| 6086 // Optional fast-exit: Check interrupt before trying to wait | |
| 6087 Thread* thread = Thread::current(); | |
| 6088 assert(thread->is_Java_thread(), "Must be JavaThread"); | |
| 6089 JavaThread *jt = (JavaThread *)thread; | |
| 6090 if (Thread::is_interrupted(thread, false)) { | |
| 6091 return; | |
| 6092 } | |
| 6093 | |
| 6094 // First, demultiplex/decode time arguments | |
| 6095 timespec absTime; | |
|
1865
1c352af0135d
6763959: java.util.concurrent.locks.LockSupport.parkUntil(0) blocks forever
acorn
parents:
1681
diff
changeset
|
6096 if (time < 0 || (isAbsolute && time == 0) ) { // don't wait at all |
| 0 | 6097 return; |
| 6098 } | |
| 6099 if (time > 0) { | |
| 6100 // Warning: this code might be exposed to the old Solaris time | |
| 6101 // round-down bugs. Grep "roundingFix" for details. | |
| 6102 unpackTime(&absTime, isAbsolute, time); | |
| 6103 } | |
| 6104 | |
| 6105 // Enter safepoint region | |
| 6106 // Beware of deadlocks such as 6317397. | |
| 6107 // The per-thread Parker:: _mutex is a classic leaf-lock. | |
| 6108 // In particular a thread must never block on the Threads_lock while | |
| 6109 // holding the Parker:: mutex. If safepoints are pending both the | |
| 6110 // the ThreadBlockInVM() CTOR and DTOR may grab Threads_lock. | |
| 6111 ThreadBlockInVM tbivm(jt); | |
| 6112 | |
| 6113 // Don't wait if cannot get lock since interference arises from | |
| 6114 // unblocking. Also. check interrupt before trying wait | |
| 6115 if (Thread::is_interrupted(thread, false) || | |
| 6116 os::Solaris::mutex_trylock(_mutex) != 0) { | |
| 6117 return; | |
| 6118 } | |
| 6119 | |
| 6120 int status ; | |
| 6121 | |
| 6122 if (_counter > 0) { // no wait needed | |
| 6123 _counter = 0; | |
| 6124 status = os::Solaris::mutex_unlock(_mutex); | |
| 6125 assert (status == 0, "invariant") ; | |
|
7629
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
7456
diff
changeset
|
6126 // Paranoia to ensure our locked and lock-free paths interact |
|
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
7456
diff
changeset
|
6127 // correctly with each other and Java-level accesses. |
|
1117
95e9083cf4a7
6822370: ReentrantReadWriteLock: threads hung when there are no threads holding onto the lock (Netra x4450)
dholmes
parents:
894
diff
changeset
|
6128 OrderAccess::fence(); |
| 0 | 6129 return; |
| 6130 } | |
| 6131 | |
| 6132 #ifdef ASSERT | |
| 6133 // Don't catch signals while blocked; let the running threads have the signals. | |
| 6134 // (This allows a debugger to break into the running thread.) | |
| 6135 sigset_t oldsigs; | |
| 6136 sigset_t* allowdebug_blocked = os::Solaris::allowdebug_blocked_signals(); | |
| 6137 thr_sigsetmask(SIG_BLOCK, allowdebug_blocked, &oldsigs); | |
| 6138 #endif | |
| 6139 | |
| 6140 OSThreadWaitState osts(thread->osthread(), false /* not Object.wait() */); | |
| 6141 jt->set_suspend_equivalent(); | |
| 6142 // cleared by handle_special_suspend_equivalent_condition() or java_suspend_self() | |
| 6143 | |
| 6144 // Do this the hard way by blocking ... | |
| 6145 // See http://monaco.sfbay/detail.jsf?cr=5094058. | |
| 6146 // TODO-FIXME: for Solaris SPARC set fprs.FEF=0 prior to parking. | |
| 6147 // Only for SPARC >= V8PlusA | |
| 6148 #if defined(__sparc) && defined(COMPILER2) | |
| 6149 if (ClearFPUAtPark) { _mark_fpu_nosave() ; } | |
| 6150 #endif | |
| 6151 | |
| 6152 if (time == 0) { | |
| 6153 status = os::Solaris::cond_wait (_cond, _mutex) ; | |
| 6154 } else { | |
| 6155 status = os::Solaris::cond_timedwait (_cond, _mutex, &absTime); | |
| 6156 } | |
| 6157 // Note that an untimed cond_wait() can sometimes return ETIME on older | |
| 6158 // versions of the Solaris. | |
| 6159 assert_status(status == 0 || status == EINTR || | |
| 6160 status == ETIME || status == ETIMEDOUT, | |
| 6161 status, "cond_timedwait"); | |
| 6162 | |
| 6163 #ifdef ASSERT | |
| 6164 thr_sigsetmask(SIG_SETMASK, &oldsigs, NULL); | |
| 6165 #endif | |
| 6166 _counter = 0 ; | |
| 6167 status = os::Solaris::mutex_unlock(_mutex); | |
| 6168 assert_status(status == 0, status, "mutex_unlock") ; | |
|
7629
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
7456
diff
changeset
|
6169 // Paranoia to ensure our locked and lock-free paths interact |
|
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
7456
diff
changeset
|
6170 // correctly with each other and Java-level accesses. |
|
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
7456
diff
changeset
|
6171 OrderAccess::fence(); |
| 0 | 6172 |
| 6173 // If externally suspended while waiting, re-suspend | |
| 6174 if (jt->handle_special_suspend_equivalent_condition()) { | |
| 6175 jt->java_suspend_self(); | |
| 6176 } | |
| 6177 } | |
| 6178 | |
| 6179 void Parker::unpark() { | |
| 6180 int s, status ; | |
| 6181 status = os::Solaris::mutex_lock (_mutex) ; | |
| 6182 assert (status == 0, "invariant") ; | |
| 6183 s = _counter; | |
| 6184 _counter = 1; | |
| 6185 status = os::Solaris::mutex_unlock (_mutex) ; | |
| 6186 assert (status == 0, "invariant") ; | |
| 6187 | |
| 6188 if (s < 1) { | |
| 6189 status = os::Solaris::cond_signal (_cond) ; | |
| 6190 assert (status == 0, "invariant") ; | |
| 6191 } | |
| 6192 } | |
| 6193 | |
| 6194 extern char** environ; | |
| 6195 | |
| 6196 // Run the specified command in a separate process. Return its exit value, | |
| 6197 // or -1 on failure (e.g. can't fork a new process). | |
| 6198 // Unlike system(), this function can be called from signal handler. It | |
| 6199 // doesn't block SIGINT et al. | |
| 6200 int os::fork_and_exec(char* cmd) { | |
| 6201 char * argv[4]; | |
| 6202 argv[0] = (char *)"sh"; | |
| 6203 argv[1] = (char *)"-c"; | |
| 6204 argv[2] = cmd; | |
| 6205 argv[3] = NULL; | |
| 6206 | |
| 6207 // fork is async-safe, fork1 is not so can't use in signal handler | |
| 6208 pid_t pid; | |
| 6209 Thread* t = ThreadLocalStorage::get_thread_slow(); | |
| 6210 if (t != NULL && t->is_inside_signal_handler()) { | |
| 6211 pid = fork(); | |
| 6212 } else { | |
| 6213 pid = fork1(); | |
| 6214 } | |
| 6215 | |
| 6216 if (pid < 0) { | |
| 6217 // fork failed | |
| 6218 warning("fork failed: %s", strerror(errno)); | |
| 6219 return -1; | |
| 6220 | |
| 6221 } else if (pid == 0) { | |
| 6222 // child process | |
| 6223 | |
| 6224 // try to be consistent with system(), which uses "/usr/bin/sh" on Solaris | |
| 6225 execve("/usr/bin/sh", argv, environ); | |
| 6226 | |
| 6227 // execve failed | |
| 6228 _exit(-1); | |
| 6229 | |
| 6230 } else { | |
| 6231 // copied from J2SE ..._waitForProcessExit() in UNIXProcess_md.c; we don't | |
| 6232 // care about the actual exit code, for now. | |
| 6233 | |
| 6234 int status; | |
| 6235 | |
| 6236 // Wait for the child process to exit. This returns immediately if | |
| 6237 // the child has already exited. */ | |
| 6238 while (waitpid(pid, &status, 0) < 0) { | |
| 6239 switch (errno) { | |
| 6240 case ECHILD: return 0; | |
| 6241 case EINTR: break; | |
| 6242 default: return -1; | |
| 6243 } | |
| 6244 } | |
| 6245 | |
| 6246 if (WIFEXITED(status)) { | |
| 6247 // The child exited normally; get its exit code. | |
| 6248 return WEXITSTATUS(status); | |
| 6249 } else if (WIFSIGNALED(status)) { | |
| 6250 // The child exited because of a signal | |
| 6251 // The best value to return is 0x80 + signal number, | |
| 6252 // because that is what all Unix shells do, and because | |
| 6253 // it allows callers to distinguish between process exit and | |
| 6254 // process death by signal. | |
| 6255 return 0x80 + WTERMSIG(status); | |
| 6256 } else { | |
| 6257 // Unknown exit code; pass it through | |
| 6258 return status; | |
| 6259 } | |
| 6260 } | |
| 6261 } | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6262 |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6263 // is_headless_jre() |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6264 // |
|
4082
36b057451829
7110017: is_headless_jre should be updated to reflect the new location of awt toolkit libraries
dholmes
parents:
4006
diff
changeset
|
6265 // 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
|
6266 // 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
|
6267 // |
|
4082
36b057451829
7110017: is_headless_jre should be updated to reflect the new location of awt toolkit libraries
dholmes
parents:
4006
diff
changeset
|
6268 // 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
|
6269 // 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
|
6270 // |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6271 bool os::is_headless_jre() { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6272 struct stat statbuf; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6273 char buf[MAXPATHLEN]; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6274 char libmawtpath[MAXPATHLEN]; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6275 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
|
6276 const char *new_xawtstr = "/libawt_xawt.so"; |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6277 char *p; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6278 |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6279 // Get path to libjvm.so |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6280 os::jvm_path(buf, sizeof(buf)); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6281 |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6282 // Get rid of libjvm.so |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6283 p = strrchr(buf, '/'); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6284 if (p == NULL) return false; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6285 else *p = '\0'; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6286 |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6287 // Get rid of client or server |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6288 p = strrchr(buf, '/'); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6289 if (p == NULL) return false; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6290 else *p = '\0'; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6291 |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6292 // check xawt/libmawt.so |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6293 strcpy(libmawtpath, buf); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6294 strcat(libmawtpath, xawtstr); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6295 if (::stat(libmawtpath, &statbuf) == 0) return false; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6296 |
|
4082
36b057451829
7110017: is_headless_jre should be updated to reflect the new location of awt toolkit libraries
dholmes
parents:
4006
diff
changeset
|
6297 // check libawt_xawt.so |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6298 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
|
6299 strcat(libmawtpath, new_xawtstr); |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6300 if (::stat(libmawtpath, &statbuf) == 0) return false; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6301 |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6302 return true; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6303 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6304 |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6305 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
|
6306 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
|
6307 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6308 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6309 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
|
6310 return ::close(fd); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6311 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6312 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6313 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
|
6314 return ::close(fd); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6315 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6316 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6317 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
|
6318 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
|
6319 } |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6320 |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6321 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
|
6322 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
|
6323 } |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6324 |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6325 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
|
6326 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
|
6327 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6328 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6329 // 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
|
6330 // 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
|
6331 // 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
|
6332 // "wait forever" value. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6333 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6334 int os::timeout(int fd, long timeout) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6335 int res; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6336 struct timeval t; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6337 julong prevtime, newtime; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6338 static const char* aNull = 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6339 struct pollfd pfd; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6340 pfd.fd = fd; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6341 pfd.events = POLLIN; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6342 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6343 gettimeofday(&t, &aNull); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6344 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
|
6345 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6346 for(;;) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6347 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
|
6348 if(res == OS_ERR && errno == EINTR) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6349 if(timeout != -1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6350 gettimeofday(&t, &aNull); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6351 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
|
6352 timeout -= newtime - prevtime; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6353 if(timeout <= 0) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6354 return OS_OK; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6355 prevtime = newtime; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6356 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6357 } else return res; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6358 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6359 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6360 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6361 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
|
6362 int _result; |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6363 INTERRUPTIBLE_NORESTART(::connect(fd, him, len), _result,\ |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6364 os::Solaris::clear_interrupted); |
|
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 // 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
|
6367 // one of two values when errno == EINTR |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6368 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6369 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
|
6370 && (errno == EINTR)) { |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6371 /* 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
|
6372 INTERRUPTIBLE(::connect(fd, him, len), _result,\ |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6373 os::Solaris::clear_interrupted); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6374 /* undo these changes */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6375 if (_result == OS_ERR) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6376 if (errno == EALREADY) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6377 errno = EINPROGRESS; /* fall through */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6378 } else if (errno == EISCONN) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6379 errno = 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6380 return OS_OK; |
|
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 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6384 return _result; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6385 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6386 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6387 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
|
6388 if (fd < 0) { |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6389 return OS_ERR; |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6390 } |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6391 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
|
6392 os::Solaris::clear_interrupted); |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6393 } |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6394 |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6395 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
|
6396 sockaddr* from, socklen_t* fromlen) { |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6397 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
|
6398 os::Solaris::clear_interrupted); |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6399 } |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6400 |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6401 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
|
6402 struct sockaddr* to, socklen_t tolen) { |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6403 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
|
6404 os::Solaris::clear_interrupted); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6405 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6406 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6407 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
|
6408 if (fd < 0) { |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6409 return OS_OK; |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6410 } |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6411 int ret; |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6412 RESTARTABLE(::ioctl(fd, FIONREAD, pbytes), ret); |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6413 // 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
|
6414 // 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
|
6415 return (ret == OS_ERR) ? 0 : 1; |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6416 } |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6417 |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6418 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
|
6419 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
|
6420 os::Solaris::clear_interrupted); |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6421 } |
|
6200
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6422 |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6423 // Get the default path to the core file |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6424 // Returns the length of the string |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6425 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
|
6426 const char* p = get_current_directory(buffer, bufferSize); |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6427 |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6428 if (p == NULL) { |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6429 assert(p != NULL, "failed to get current directory"); |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6430 return 0; |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6431 } |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6432 |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6433 return strlen(buffer); |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6434 } |
|
12110
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
11112
diff
changeset
|
6435 |
|
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
11112
diff
changeset
|
6436 #ifndef PRODUCT |
|
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
11112
diff
changeset
|
6437 void TestReserveMemorySpecial_test() { |
|
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
11112
diff
changeset
|
6438 // No tests available for this platform |
|
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
11112
diff
changeset
|
6439 } |
|
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
11112
diff
changeset
|
6440 #endif |