Mercurial > hg > graal-jvmci-8
annotate src/os/solaris/vm/os_solaris.cpp @ 12233:40136aa2cdb1
8010722: assert: failed: heap size is too big for compressed oops
Summary: Use conservative assumptions of required alignment for the various garbage collector components into account when determining the maximum heap size that supports compressed oops. Using this conservative value avoids several circular dependencies in the calculation.
Reviewed-by: stefank, dholmes
| author | tschatzl |
|---|---|
| date | Wed, 11 Sep 2013 16:25:02 +0200 |
| parents | 4c84d351cca9 |
| children | cefad50507d8 c250880a6673 2b8e28fdf503 5656140324ed |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 // no precompiled headers |
| 26 #include "classfile/classLoader.hpp" | |
| 27 #include "classfile/systemDictionary.hpp" | |
| 28 #include "classfile/vmSymbols.hpp" | |
| 29 #include "code/icBuffer.hpp" | |
| 30 #include "code/vtableStubs.hpp" | |
| 31 #include "compiler/compileBroker.hpp" | |
|
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32 #include "compiler/disassembler.hpp" |
| 1972 | 33 #include "interpreter/interpreter.hpp" |
| 34 #include "jvm_solaris.h" | |
| 35 #include "memory/allocation.inline.hpp" | |
| 36 #include "memory/filemap.hpp" | |
| 37 #include "mutex_solaris.inline.hpp" | |
| 38 #include "oops/oop.inline.hpp" | |
| 39 #include "os_share_solaris.hpp" | |
| 40 #include "prims/jniFastGetField.hpp" | |
| 41 #include "prims/jvm.h" | |
| 42 #include "prims/jvm_misc.hpp" | |
| 43 #include "runtime/arguments.hpp" | |
| 44 #include "runtime/extendedPC.hpp" | |
| 45 #include "runtime/globals.hpp" | |
| 46 #include "runtime/interfaceSupport.hpp" | |
| 47 #include "runtime/java.hpp" | |
| 48 #include "runtime/javaCalls.hpp" | |
| 49 #include "runtime/mutexLocker.hpp" | |
| 50 #include "runtime/objectMonitor.hpp" | |
| 51 #include "runtime/osThread.hpp" | |
| 52 #include "runtime/perfMemory.hpp" | |
| 53 #include "runtime/sharedRuntime.hpp" | |
| 54 #include "runtime/statSampler.hpp" | |
| 55 #include "runtime/stubRoutines.hpp" | |
|
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56 #include "runtime/thread.inline.hpp" |
| 1972 | 57 #include "runtime/threadCritical.hpp" |
| 58 #include "runtime/timer.hpp" | |
| 59 #include "services/attachListener.hpp" | |
|
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60 #include "services/memTracker.hpp" |
| 1972 | 61 #include "services/runtimeService.hpp" |
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62 #include "utilities/decoder.hpp" |
| 1972 | 63 #include "utilities/defaultStream.hpp" |
| 64 #include "utilities/events.hpp" | |
| 65 #include "utilities/growableArray.hpp" | |
| 66 #include "utilities/vmError.hpp" | |
| 0 | 67 |
| 68 // put OS-includes here | |
| 69 # include <dlfcn.h> | |
| 70 # include <errno.h> | |
|
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71 # include <exception> |
| 0 | 72 # include <link.h> |
| 73 # include <poll.h> | |
| 74 # include <pthread.h> | |
| 75 # include <pwd.h> | |
| 76 # include <schedctl.h> | |
| 77 # include <setjmp.h> | |
| 78 # include <signal.h> | |
| 79 # include <stdio.h> | |
| 80 # include <alloca.h> | |
| 81 # include <sys/filio.h> | |
| 82 # include <sys/ipc.h> | |
| 83 # include <sys/lwp.h> | |
| 84 # include <sys/machelf.h> // for elf Sym structure used by dladdr1 | |
| 85 # include <sys/mman.h> | |
| 86 # include <sys/processor.h> | |
| 87 # include <sys/procset.h> | |
| 88 # include <sys/pset.h> | |
| 89 # include <sys/resource.h> | |
| 90 # include <sys/shm.h> | |
| 91 # include <sys/socket.h> | |
| 92 # include <sys/stat.h> | |
| 93 # include <sys/systeminfo.h> | |
| 94 # include <sys/time.h> | |
| 95 # include <sys/times.h> | |
| 96 # include <sys/types.h> | |
| 97 # include <sys/wait.h> | |
| 98 # include <sys/utsname.h> | |
| 99 # include <thread.h> | |
| 100 # include <unistd.h> | |
| 101 # include <sys/priocntl.h> | |
| 102 # include <sys/rtpriocntl.h> | |
| 103 # include <sys/tspriocntl.h> | |
| 104 # include <sys/iapriocntl.h> | |
|
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105 # include <sys/fxpriocntl.h> |
| 0 | 106 # include <sys/loadavg.h> |
| 107 # include <string.h> | |
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108 # include <stdio.h> |
| 0 | 109 |
| 110 # define _STRUCTURED_PROC 1 // this gets us the new structured proc interfaces of 5.6 & later | |
| 111 # include <sys/procfs.h> // see comment in <sys/procfs.h> | |
| 112 | |
| 113 #define MAX_PATH (2 * K) | |
| 114 | |
| 115 // for timer info max values which include all bits | |
| 116 #define ALL_64_BITS CONST64(0xFFFFFFFFFFFFFFFF) | |
| 117 | |
| 118 | |
| 119 // Here are some liblgrp types from sys/lgrp_user.h to be able to | |
| 120 // compile on older systems without this header file. | |
| 121 | |
| 122 #ifndef MADV_ACCESS_LWP | |
| 123 # define MADV_ACCESS_LWP 7 /* next LWP to access heavily */ | |
| 124 #endif | |
| 125 #ifndef MADV_ACCESS_MANY | |
| 126 # define MADV_ACCESS_MANY 8 /* many processes to access heavily */ | |
| 127 #endif | |
| 128 | |
|
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129 #ifndef LGRP_RSRC_CPU |
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130 # define LGRP_RSRC_CPU 0 /* CPU resources */ |
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131 #endif |
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132 #ifndef LGRP_RSRC_MEM |
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133 # define LGRP_RSRC_MEM 1 /* memory resources */ |
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134 #endif |
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135 |
| 0 | 136 // see thr_setprio(3T) for the basis of these numbers |
| 137 #define MinimumPriority 0 | |
| 138 #define NormalPriority 64 | |
| 139 #define MaximumPriority 127 | |
| 140 | |
| 141 // Values for ThreadPriorityPolicy == 1 | |
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142 int prio_policy1[CriticalPriority+1] = { |
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143 -99999, 0, 16, 32, 48, 64, |
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144 80, 96, 112, 124, 127, 127 }; |
| 0 | 145 |
| 146 // System parameters used internally | |
| 147 static clock_t clock_tics_per_sec = 100; | |
| 148 | |
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149 // Track if we have called enable_extended_FILE_stdio (on Solaris 10u4+) |
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150 static bool enabled_extended_FILE_stdio = false; |
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151 |
| 0 | 152 // For diagnostics to print a message once. see run_periodic_checks |
| 153 static bool check_addr0_done = false; | |
| 154 static sigset_t check_signal_done; | |
| 155 static bool check_signals = true; | |
| 156 | |
| 157 address os::Solaris::handler_start; // start pc of thr_sighndlrinfo | |
| 158 address os::Solaris::handler_end; // end pc of thr_sighndlrinfo | |
| 159 | |
| 160 address os::Solaris::_main_stack_base = NULL; // 4352906 workaround | |
| 161 | |
| 162 | |
| 163 // "default" initializers for missing libc APIs | |
| 164 extern "C" { | |
| 165 static int lwp_mutex_init(mutex_t *mx, int scope, void *arg) { memset(mx, 0, sizeof(mutex_t)); return 0; } | |
| 166 static int lwp_mutex_destroy(mutex_t *mx) { return 0; } | |
| 167 | |
| 168 static int lwp_cond_init(cond_t *cv, int scope, void *arg){ memset(cv, 0, sizeof(cond_t)); return 0; } | |
| 169 static int lwp_cond_destroy(cond_t *cv) { return 0; } | |
| 170 } | |
| 171 | |
| 172 // "default" initializers for pthread-based synchronization | |
| 173 extern "C" { | |
| 174 static int pthread_mutex_default_init(mutex_t *mx, int scope, void *arg) { memset(mx, 0, sizeof(mutex_t)); return 0; } | |
| 175 static int pthread_cond_default_init(cond_t *cv, int scope, void *arg){ memset(cv, 0, sizeof(cond_t)); return 0; } | |
| 176 } | |
| 177 | |
| 10405 | 178 static void unpackTime(timespec* absTime, bool isAbsolute, jlong time); |
| 179 | |
| 0 | 180 // Thread Local Storage |
| 181 // This is common to all Solaris platforms so it is defined here, | |
| 182 // in this common file. | |
| 183 // The declarations are in the os_cpu threadLS*.hpp files. | |
| 184 // | |
| 185 // Static member initialization for TLS | |
| 186 Thread* ThreadLocalStorage::_get_thread_cache[ThreadLocalStorage::_pd_cache_size] = {NULL}; | |
| 187 | |
| 188 #ifndef PRODUCT | |
| 189 #define _PCT(n,d) ((100.0*(double)(n))/(double)(d)) | |
| 190 | |
| 191 int ThreadLocalStorage::_tcacheHit = 0; | |
| 192 int ThreadLocalStorage::_tcacheMiss = 0; | |
| 193 | |
| 194 void ThreadLocalStorage::print_statistics() { | |
| 195 int total = _tcacheMiss+_tcacheHit; | |
| 196 tty->print_cr("Thread cache hits %d misses %d total %d percent %f\n", | |
| 197 _tcacheHit, _tcacheMiss, total, _PCT(_tcacheHit, total)); | |
| 198 } | |
| 199 #undef _PCT | |
| 200 #endif // PRODUCT | |
| 201 | |
| 202 Thread* ThreadLocalStorage::get_thread_via_cache_slowly(uintptr_t raw_id, | |
| 203 int index) { | |
| 204 Thread *thread = get_thread_slow(); | |
| 205 if (thread != NULL) { | |
| 206 address sp = os::current_stack_pointer(); | |
| 207 guarantee(thread->_stack_base == NULL || | |
| 208 (sp <= thread->_stack_base && | |
| 209 sp >= thread->_stack_base - thread->_stack_size) || | |
| 210 is_error_reported(), | |
| 211 "sp must be inside of selected thread stack"); | |
| 212 | |
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213 thread->set_self_raw_id(raw_id); // mark for quick retrieval |
| 0 | 214 _get_thread_cache[ index ] = thread; |
| 215 } | |
| 216 return thread; | |
| 217 } | |
| 218 | |
| 219 | |
| 220 static const double all_zero[ sizeof(Thread) / sizeof(double) + 1 ] = {0}; | |
| 221 #define NO_CACHED_THREAD ((Thread*)all_zero) | |
| 222 | |
| 223 void ThreadLocalStorage::pd_set_thread(Thread* thread) { | |
| 224 | |
| 225 // Store the new value before updating the cache to prevent a race | |
| 226 // between get_thread_via_cache_slowly() and this store operation. | |
| 227 os::thread_local_storage_at_put(ThreadLocalStorage::thread_index(), thread); | |
| 228 | |
| 229 // Update thread cache with new thread if setting on thread create, | |
| 230 // or NO_CACHED_THREAD (zeroed) thread if resetting thread on exit. | |
| 231 uintptr_t raw = pd_raw_thread_id(); | |
| 232 int ix = pd_cache_index(raw); | |
| 233 _get_thread_cache[ix] = thread == NULL ? NO_CACHED_THREAD : thread; | |
| 234 } | |
| 235 | |
| 236 void ThreadLocalStorage::pd_init() { | |
| 237 for (int i = 0; i < _pd_cache_size; i++) { | |
| 238 _get_thread_cache[i] = NO_CACHED_THREAD; | |
| 239 } | |
| 240 } | |
| 241 | |
| 242 // Invalidate all the caches (happens to be the same as pd_init). | |
| 243 void ThreadLocalStorage::pd_invalidate_all() { pd_init(); } | |
| 244 | |
| 245 #undef NO_CACHED_THREAD | |
| 246 | |
| 247 // END Thread Local Storage | |
| 248 | |
| 249 static inline size_t adjust_stack_size(address base, size_t size) { | |
| 250 if ((ssize_t)size < 0) { | |
| 251 // 4759953: Compensate for ridiculous stack size. | |
| 252 size = max_intx; | |
| 253 } | |
| 254 if (size > (size_t)base) { | |
| 255 // 4812466: Make sure size doesn't allow the stack to wrap the address space. | |
| 256 size = (size_t)base; | |
| 257 } | |
| 258 return size; | |
| 259 } | |
| 260 | |
| 261 static inline stack_t get_stack_info() { | |
| 262 stack_t st; | |
| 263 int retval = thr_stksegment(&st); | |
| 264 st.ss_size = adjust_stack_size((address)st.ss_sp, st.ss_size); | |
| 265 assert(retval == 0, "incorrect return value from thr_stksegment"); | |
| 266 assert((address)&st < (address)st.ss_sp, "Invalid stack base returned"); | |
| 267 assert((address)&st > (address)st.ss_sp-st.ss_size, "Invalid stack size returned"); | |
| 268 return st; | |
| 269 } | |
| 270 | |
| 271 address os::current_stack_base() { | |
| 272 int r = thr_main() ; | |
| 273 guarantee (r == 0 || r == 1, "CR6501650 or CR6493689") ; | |
| 274 bool is_primordial_thread = r; | |
| 275 | |
| 276 // Workaround 4352906, avoid calls to thr_stksegment by | |
| 277 // thr_main after the first one (it looks like we trash | |
| 278 // some data, causing the value for ss_sp to be incorrect). | |
| 279 if (!is_primordial_thread || os::Solaris::_main_stack_base == NULL) { | |
| 280 stack_t st = get_stack_info(); | |
| 281 if (is_primordial_thread) { | |
| 282 // cache initial value of stack base | |
| 283 os::Solaris::_main_stack_base = (address)st.ss_sp; | |
| 284 } | |
| 285 return (address)st.ss_sp; | |
| 286 } else { | |
| 287 guarantee(os::Solaris::_main_stack_base != NULL, "Attempt to use null cached stack base"); | |
| 288 return os::Solaris::_main_stack_base; | |
| 289 } | |
| 290 } | |
| 291 | |
| 292 size_t os::current_stack_size() { | |
| 293 size_t size; | |
| 294 | |
| 295 int r = thr_main() ; | |
| 296 guarantee (r == 0 || r == 1, "CR6501650 or CR6493689") ; | |
| 297 if(!r) { | |
| 298 size = get_stack_info().ss_size; | |
| 299 } else { | |
| 300 struct rlimit limits; | |
| 301 getrlimit(RLIMIT_STACK, &limits); | |
| 302 size = adjust_stack_size(os::Solaris::_main_stack_base, (size_t)limits.rlim_cur); | |
| 303 } | |
| 304 // base may not be page aligned | |
| 305 address base = current_stack_base(); | |
| 306 address bottom = (address)align_size_up((intptr_t)(base - size), os::vm_page_size());; | |
| 307 return (size_t)(base - bottom); | |
| 308 } | |
| 309 | |
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310 struct tm* os::localtime_pd(const time_t* clock, struct tm* res) { |
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311 return localtime_r(clock, res); |
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312 } |
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313 |
| 0 | 314 // interruptible infrastructure |
| 315 | |
| 316 // setup_interruptible saves the thread state before going into an | |
| 317 // interruptible system call. | |
| 318 // The saved state is used to restore the thread to | |
| 319 // its former state whether or not an interrupt is received. | |
| 320 // Used by classloader os::read | |
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321 // os::restartable_read calls skip this layer and stay in _thread_in_native |
| 0 | 322 |
| 323 void os::Solaris::setup_interruptible(JavaThread* thread) { | |
| 324 | |
| 325 JavaThreadState thread_state = thread->thread_state(); | |
| 326 | |
| 327 assert(thread_state != _thread_blocked, "Coming from the wrong thread"); | |
| 328 assert(thread_state != _thread_in_native, "Native threads skip setup_interruptible"); | |
| 329 OSThread* osthread = thread->osthread(); | |
| 330 osthread->set_saved_interrupt_thread_state(thread_state); | |
| 331 thread->frame_anchor()->make_walkable(thread); | |
| 332 ThreadStateTransition::transition(thread, thread_state, _thread_blocked); | |
| 333 } | |
| 334 | |
| 335 // Version of setup_interruptible() for threads that are already in | |
| 336 // _thread_blocked. Used by os_sleep(). | |
| 337 void os::Solaris::setup_interruptible_already_blocked(JavaThread* thread) { | |
| 338 thread->frame_anchor()->make_walkable(thread); | |
| 339 } | |
| 340 | |
| 341 JavaThread* os::Solaris::setup_interruptible() { | |
| 342 JavaThread* thread = (JavaThread*)ThreadLocalStorage::thread(); | |
| 343 setup_interruptible(thread); | |
| 344 return thread; | |
| 345 } | |
| 346 | |
| 347 void os::Solaris::try_enable_extended_io() { | |
| 348 typedef int (*enable_extended_FILE_stdio_t)(int, int); | |
| 349 | |
| 350 if (!UseExtendedFileIO) { | |
| 351 return; | |
| 352 } | |
| 353 | |
| 354 enable_extended_FILE_stdio_t enabler = | |
| 355 (enable_extended_FILE_stdio_t) dlsym(RTLD_DEFAULT, | |
| 356 "enable_extended_FILE_stdio"); | |
| 357 if (enabler) { | |
| 358 enabler(-1, -1); | |
| 359 } | |
| 360 } | |
| 361 | |
| 362 | |
| 363 #ifdef ASSERT | |
| 364 | |
| 365 JavaThread* os::Solaris::setup_interruptible_native() { | |
| 366 JavaThread* thread = (JavaThread*)ThreadLocalStorage::thread(); | |
| 367 JavaThreadState thread_state = thread->thread_state(); | |
| 368 assert(thread_state == _thread_in_native, "Assumed thread_in_native"); | |
| 369 return thread; | |
| 370 } | |
| 371 | |
| 372 void os::Solaris::cleanup_interruptible_native(JavaThread* thread) { | |
| 373 JavaThreadState thread_state = thread->thread_state(); | |
| 374 assert(thread_state == _thread_in_native, "Assumed thread_in_native"); | |
| 375 } | |
| 376 #endif | |
| 377 | |
| 378 // cleanup_interruptible reverses the effects of setup_interruptible | |
| 379 // setup_interruptible_already_blocked() does not need any cleanup. | |
| 380 | |
| 381 void os::Solaris::cleanup_interruptible(JavaThread* thread) { | |
| 382 OSThread* osthread = thread->osthread(); | |
| 383 | |
| 384 ThreadStateTransition::transition(thread, _thread_blocked, osthread->saved_interrupt_thread_state()); | |
| 385 } | |
| 386 | |
| 387 // I/O interruption related counters called in _INTERRUPTIBLE | |
| 388 | |
| 389 void os::Solaris::bump_interrupted_before_count() { | |
| 390 RuntimeService::record_interrupted_before_count(); | |
| 391 } | |
| 392 | |
| 393 void os::Solaris::bump_interrupted_during_count() { | |
| 394 RuntimeService::record_interrupted_during_count(); | |
| 395 } | |
| 396 | |
| 397 static int _processors_online = 0; | |
| 398 | |
| 399 jint os::Solaris::_os_thread_limit = 0; | |
| 400 volatile jint os::Solaris::_os_thread_count = 0; | |
| 401 | |
| 402 julong os::available_memory() { | |
| 403 return Solaris::available_memory(); | |
| 404 } | |
| 405 | |
| 406 julong os::Solaris::available_memory() { | |
| 407 return (julong)sysconf(_SC_AVPHYS_PAGES) * os::vm_page_size(); | |
| 408 } | |
| 409 | |
| 410 julong os::Solaris::_physical_memory = 0; | |
| 411 | |
| 412 julong os::physical_memory() { | |
| 413 return Solaris::physical_memory(); | |
| 414 } | |
| 415 | |
| 416 static hrtime_t first_hrtime = 0; | |
| 417 static const hrtime_t hrtime_hz = 1000*1000*1000; | |
| 418 const int LOCK_BUSY = 1; | |
| 419 const int LOCK_FREE = 0; | |
| 420 const int LOCK_INVALID = -1; | |
| 421 static volatile hrtime_t max_hrtime = 0; | |
| 422 static volatile int max_hrtime_lock = LOCK_FREE; // Update counter with LSB as lock-in-progress | |
| 423 | |
| 424 | |
| 425 void os::Solaris::initialize_system_info() { | |
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426 set_processor_count(sysconf(_SC_NPROCESSORS_CONF)); |
| 0 | 427 _processors_online = sysconf (_SC_NPROCESSORS_ONLN); |
| 428 _physical_memory = (julong)sysconf(_SC_PHYS_PAGES) * (julong)sysconf(_SC_PAGESIZE); | |
| 429 } | |
| 430 | |
| 431 int os::active_processor_count() { | |
| 432 int online_cpus = sysconf(_SC_NPROCESSORS_ONLN); | |
| 433 pid_t pid = getpid(); | |
| 434 psetid_t pset = PS_NONE; | |
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435 // Are we running in a processor set or is there any processor set around? |
| 0 | 436 if (pset_bind(PS_QUERY, P_PID, pid, &pset) == 0) { |
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437 uint_t pset_cpus; |
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438 // Query the number of cpus available to us. |
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439 if (pset_info(pset, NULL, &pset_cpus, NULL) == 0) { |
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440 assert(pset_cpus > 0 && pset_cpus <= online_cpus, "sanity check"); |
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441 _processors_online = pset_cpus; |
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442 return pset_cpus; |
| 0 | 443 } |
| 444 } | |
| 445 // Otherwise return number of online cpus | |
| 446 return online_cpus; | |
| 447 } | |
| 448 | |
| 449 static bool find_processors_in_pset(psetid_t pset, | |
| 450 processorid_t** id_array, | |
| 451 uint_t* id_length) { | |
| 452 bool result = false; | |
| 453 // Find the number of processors in the processor set. | |
| 454 if (pset_info(pset, NULL, id_length, NULL) == 0) { | |
| 455 // Make up an array to hold their ids. | |
| 6197 | 456 *id_array = NEW_C_HEAP_ARRAY(processorid_t, *id_length, mtInternal); |
| 0 | 457 // Fill in the array with their processor ids. |
| 458 if (pset_info(pset, NULL, id_length, *id_array) == 0) { | |
| 459 result = true; | |
| 460 } | |
| 461 } | |
| 462 return result; | |
| 463 } | |
| 464 | |
| 465 // Callers of find_processors_online() must tolerate imprecise results -- | |
| 466 // the system configuration can change asynchronously because of DR | |
| 467 // or explicit psradm operations. | |
| 468 // | |
| 469 // We also need to take care that the loop (below) terminates as the | |
| 470 // number of processors online can change between the _SC_NPROCESSORS_ONLN | |
| 471 // request and the loop that builds the list of processor ids. Unfortunately | |
| 472 // there's no reliable way to determine the maximum valid processor id, | |
| 473 // so we use a manifest constant, MAX_PROCESSOR_ID, instead. See p_online | |
| 474 // man pages, which claim the processor id set is "sparse, but | |
| 475 // not too sparse". MAX_PROCESSOR_ID is used to ensure that we eventually | |
| 476 // exit the loop. | |
| 477 // | |
| 478 // In the future we'll be able to use sysconf(_SC_CPUID_MAX), but that's | |
| 479 // not available on S8.0. | |
| 480 | |
| 481 static bool find_processors_online(processorid_t** id_array, | |
| 482 uint* id_length) { | |
| 483 const processorid_t MAX_PROCESSOR_ID = 100000 ; | |
| 484 // Find the number of processors online. | |
| 485 *id_length = sysconf(_SC_NPROCESSORS_ONLN); | |
| 486 // Make up an array to hold their ids. | |
| 6197 | 487 *id_array = NEW_C_HEAP_ARRAY(processorid_t, *id_length, mtInternal); |
| 0 | 488 // Processors need not be numbered consecutively. |
| 489 long found = 0; | |
| 490 processorid_t next = 0; | |
| 491 while (found < *id_length && next < MAX_PROCESSOR_ID) { | |
| 492 processor_info_t info; | |
| 493 if (processor_info(next, &info) == 0) { | |
| 494 // NB, PI_NOINTR processors are effectively online ... | |
| 495 if (info.pi_state == P_ONLINE || info.pi_state == P_NOINTR) { | |
| 496 (*id_array)[found] = next; | |
| 497 found += 1; | |
| 498 } | |
| 499 } | |
| 500 next += 1; | |
| 501 } | |
| 502 if (found < *id_length) { | |
| 503 // The loop above didn't identify the expected number of processors. | |
| 504 // We could always retry the operation, calling sysconf(_SC_NPROCESSORS_ONLN) | |
| 505 // and re-running the loop, above, but there's no guarantee of progress | |
| 506 // if the system configuration is in flux. Instead, we just return what | |
| 507 // we've got. Note that in the worst case find_processors_online() could | |
| 508 // return an empty set. (As a fall-back in the case of the empty set we | |
| 509 // could just return the ID of the current processor). | |
| 510 *id_length = found ; | |
| 511 } | |
| 512 | |
| 513 return true; | |
| 514 } | |
| 515 | |
| 516 static bool assign_distribution(processorid_t* id_array, | |
| 517 uint id_length, | |
| 518 uint* distribution, | |
| 519 uint distribution_length) { | |
| 520 // We assume we can assign processorid_t's to uint's. | |
| 521 assert(sizeof(processorid_t) == sizeof(uint), | |
| 522 "can't convert processorid_t to uint"); | |
| 523 // Quick check to see if we won't succeed. | |
| 524 if (id_length < distribution_length) { | |
| 525 return false; | |
| 526 } | |
| 527 // Assign processor ids to the distribution. | |
| 528 // Try to shuffle processors to distribute work across boards, | |
| 529 // assuming 4 processors per board. | |
| 530 const uint processors_per_board = ProcessDistributionStride; | |
| 531 // Find the maximum processor id. | |
| 532 processorid_t max_id = 0; | |
| 533 for (uint m = 0; m < id_length; m += 1) { | |
| 534 max_id = MAX2(max_id, id_array[m]); | |
| 535 } | |
| 536 // The next id, to limit loops. | |
| 537 const processorid_t limit_id = max_id + 1; | |
| 538 // Make up markers for available processors. | |
| 6197 | 539 bool* available_id = NEW_C_HEAP_ARRAY(bool, limit_id, mtInternal); |
| 0 | 540 for (uint c = 0; c < limit_id; c += 1) { |
| 541 available_id[c] = false; | |
| 542 } | |
| 543 for (uint a = 0; a < id_length; a += 1) { | |
| 544 available_id[id_array[a]] = true; | |
| 545 } | |
| 546 // Step by "boards", then by "slot", copying to "assigned". | |
| 547 // NEEDS_CLEANUP: The assignment of processors should be stateful, | |
| 548 // remembering which processors have been assigned by | |
| 549 // previous calls, etc., so as to distribute several | |
| 550 // independent calls of this method. What we'd like is | |
| 551 // It would be nice to have an API that let us ask | |
| 552 // how many processes are bound to a processor, | |
| 553 // but we don't have that, either. | |
| 554 // In the short term, "board" is static so that | |
| 555 // subsequent distributions don't all start at board 0. | |
| 556 static uint board = 0; | |
| 557 uint assigned = 0; | |
| 558 // Until we've found enough processors .... | |
| 559 while (assigned < distribution_length) { | |
| 560 // ... find the next available processor in the board. | |
| 561 for (uint slot = 0; slot < processors_per_board; slot += 1) { | |
| 562 uint try_id = board * processors_per_board + slot; | |
| 563 if ((try_id < limit_id) && (available_id[try_id] == true)) { | |
| 564 distribution[assigned] = try_id; | |
| 565 available_id[try_id] = false; | |
| 566 assigned += 1; | |
| 567 break; | |
| 568 } | |
| 569 } | |
| 570 board += 1; | |
| 571 if (board * processors_per_board + 0 >= limit_id) { | |
| 572 board = 0; | |
| 573 } | |
| 574 } | |
| 575 if (available_id != NULL) { | |
| 6197 | 576 FREE_C_HEAP_ARRAY(bool, available_id, mtInternal); |
| 0 | 577 } |
| 578 return true; | |
| 579 } | |
| 580 | |
| 4006 | 581 void os::set_native_thread_name(const char *name) { |
| 582 // Not yet implemented. | |
| 583 return; | |
| 584 } | |
| 585 | |
| 0 | 586 bool os::distribute_processes(uint length, uint* distribution) { |
| 587 bool result = false; | |
| 588 // Find the processor id's of all the available CPUs. | |
| 589 processorid_t* id_array = NULL; | |
| 590 uint id_length = 0; | |
| 591 // There are some races between querying information and using it, | |
| 592 // since processor sets can change dynamically. | |
| 593 psetid_t pset = PS_NONE; | |
| 594 // Are we running in a processor set? | |
| 595 if ((pset_bind(PS_QUERY, P_PID, P_MYID, &pset) == 0) && pset != PS_NONE) { | |
| 596 result = find_processors_in_pset(pset, &id_array, &id_length); | |
| 597 } else { | |
| 598 result = find_processors_online(&id_array, &id_length); | |
| 599 } | |
| 600 if (result == true) { | |
| 601 if (id_length >= length) { | |
| 602 result = assign_distribution(id_array, id_length, distribution, length); | |
| 603 } else { | |
| 604 result = false; | |
| 605 } | |
| 606 } | |
| 607 if (id_array != NULL) { | |
| 6197 | 608 FREE_C_HEAP_ARRAY(processorid_t, id_array, mtInternal); |
| 0 | 609 } |
| 610 return result; | |
| 611 } | |
| 612 | |
| 613 bool os::bind_to_processor(uint processor_id) { | |
| 614 // We assume that a processorid_t can be stored in a uint. | |
| 615 assert(sizeof(uint) == sizeof(processorid_t), | |
| 616 "can't convert uint to processorid_t"); | |
| 617 int bind_result = | |
| 618 processor_bind(P_LWPID, // bind LWP. | |
| 619 P_MYID, // bind current LWP. | |
| 620 (processorid_t) processor_id, // id. | |
| 621 NULL); // don't return old binding. | |
| 622 return (bind_result == 0); | |
| 623 } | |
| 624 | |
| 625 bool os::getenv(const char* name, char* buffer, int len) { | |
| 626 char* val = ::getenv( name ); | |
| 627 if ( val == NULL | |
| 628 || strlen(val) + 1 > len ) { | |
| 629 if (len > 0) buffer[0] = 0; // return a null string | |
| 630 return false; | |
| 631 } | |
| 632 strcpy( buffer, val ); | |
| 633 return true; | |
| 634 } | |
| 635 | |
| 636 | |
| 637 // Return true if user is running as root. | |
| 638 | |
| 639 bool os::have_special_privileges() { | |
| 640 static bool init = false; | |
| 641 static bool privileges = false; | |
| 642 if (!init) { | |
| 643 privileges = (getuid() != geteuid()) || (getgid() != getegid()); | |
| 644 init = true; | |
| 645 } | |
| 646 return privileges; | |
| 647 } | |
| 648 | |
| 649 | |
| 650 void os::init_system_properties_values() { | |
| 651 char arch[12]; | |
| 652 sysinfo(SI_ARCHITECTURE, arch, sizeof(arch)); | |
| 653 | |
| 654 // The next steps are taken in the product version: | |
| 655 // | |
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656 // Obtain the JAVA_HOME value from the location of libjvm.so. |
| 0 | 657 // This library should be located at: |
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658 // <JAVA_HOME>/jre/lib/<arch>/{client|server}/libjvm.so. |
| 0 | 659 // |
| 660 // If "/jre/lib/" appears at the right place in the path, then we | |
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661 // assume libjvm.so is installed in a JDK and we use this path. |
| 0 | 662 // |
| 663 // Otherwise exit with message: "Could not create the Java virtual machine." | |
| 664 // | |
| 665 // The following extra steps are taken in the debugging version: | |
| 666 // | |
| 667 // If "/jre/lib/" does NOT appear at the right place in the path | |
| 668 // instead of exit check for $JAVA_HOME environment variable. | |
| 669 // | |
| 670 // If it is defined and we are able to locate $JAVA_HOME/jre/lib/<arch>, | |
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671 // then we append a fake suffix "hotspot/libjvm.so" to this path so |
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672 // it looks like libjvm.so is installed there |
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673 // <JAVA_HOME>/jre/lib/<arch>/hotspot/libjvm.so. |
| 0 | 674 // |
| 675 // Otherwise exit. | |
| 676 // | |
| 677 // Important note: if the location of libjvm.so changes this | |
| 678 // code needs to be changed accordingly. | |
| 679 | |
| 680 // The next few definitions allow the code to be verbatim: | |
| 6197 | 681 #define malloc(n) (char*)NEW_C_HEAP_ARRAY(char, (n), mtInternal) |
| 682 #define free(p) FREE_C_HEAP_ARRAY(char, p, mtInternal) | |
| 0 | 683 #define getenv(n) ::getenv(n) |
| 684 | |
| 685 #define EXTENSIONS_DIR "/lib/ext" | |
| 686 #define ENDORSED_DIR "/lib/endorsed" | |
| 687 #define COMMON_DIR "/usr/jdk/packages" | |
| 688 | |
| 689 { | |
| 690 /* sysclasspath, java_home, dll_dir */ | |
| 691 { | |
| 692 char *home_path; | |
| 693 char *dll_path; | |
| 694 char *pslash; | |
| 695 char buf[MAXPATHLEN]; | |
| 696 os::jvm_path(buf, sizeof(buf)); | |
| 697 | |
| 698 // Found the full path to libjvm.so. | |
| 699 // Now cut the path to <java_home>/jre if we can. | |
| 700 *(strrchr(buf, '/')) = '\0'; /* get rid of /libjvm.so */ | |
| 701 pslash = strrchr(buf, '/'); | |
| 702 if (pslash != NULL) | |
| 703 *pslash = '\0'; /* get rid of /{client|server|hotspot} */ | |
| 704 dll_path = malloc(strlen(buf) + 1); | |
| 705 if (dll_path == NULL) | |
| 706 return; | |
| 707 strcpy(dll_path, buf); | |
| 708 Arguments::set_dll_dir(dll_path); | |
| 709 | |
| 710 if (pslash != NULL) { | |
| 711 pslash = strrchr(buf, '/'); | |
| 712 if (pslash != NULL) { | |
| 713 *pslash = '\0'; /* get rid of /<arch> */ | |
| 714 pslash = strrchr(buf, '/'); | |
| 715 if (pslash != NULL) | |
| 716 *pslash = '\0'; /* get rid of /lib */ | |
| 717 } | |
| 718 } | |
| 719 | |
| 720 home_path = malloc(strlen(buf) + 1); | |
| 721 if (home_path == NULL) | |
| 722 return; | |
| 723 strcpy(home_path, buf); | |
| 724 Arguments::set_java_home(home_path); | |
| 725 | |
| 726 if (!set_boot_path('/', ':')) | |
| 727 return; | |
| 728 } | |
| 729 | |
| 730 /* | |
| 731 * Where to look for native libraries | |
| 732 */ | |
| 733 { | |
| 734 // Use dlinfo() to determine the correct java.library.path. | |
| 735 // | |
| 736 // If we're launched by the Java launcher, and the user | |
| 737 // does not set java.library.path explicitly on the commandline, | |
| 738 // the Java launcher sets LD_LIBRARY_PATH for us and unsets | |
| 739 // LD_LIBRARY_PATH_32 and LD_LIBRARY_PATH_64. In this case | |
| 740 // dlinfo returns LD_LIBRARY_PATH + crle settings (including | |
| 741 // /usr/lib), which is exactly what we want. | |
| 742 // | |
| 743 // If the user does set java.library.path, it completely | |
| 744 // overwrites this setting, and always has. | |
| 745 // | |
| 746 // If we're not launched by the Java launcher, we may | |
| 747 // get here with any/all of the LD_LIBRARY_PATH[_32|64] | |
| 748 // settings. Again, dlinfo does exactly what we want. | |
| 749 | |
| 750 Dl_serinfo _info, *info = &_info; | |
| 751 Dl_serpath *path; | |
| 752 char* library_path; | |
| 753 char *common_path; | |
| 754 int i; | |
| 755 | |
| 756 // determine search path count and required buffer size | |
| 757 if (dlinfo(RTLD_SELF, RTLD_DI_SERINFOSIZE, (void *)info) == -1) { | |
| 758 vm_exit_during_initialization("dlinfo SERINFOSIZE request", dlerror()); | |
| 759 } | |
| 760 | |
| 761 // allocate new buffer and initialize | |
| 762 info = (Dl_serinfo*)malloc(_info.dls_size); | |
| 763 if (info == NULL) { | |
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764 vm_exit_out_of_memory(_info.dls_size, OOM_MALLOC_ERROR, |
| 0 | 765 "init_system_properties_values info"); |
| 766 } | |
| 767 info->dls_size = _info.dls_size; | |
| 768 info->dls_cnt = _info.dls_cnt; | |
| 769 | |
| 770 // obtain search path information | |
| 771 if (dlinfo(RTLD_SELF, RTLD_DI_SERINFO, (void *)info) == -1) { | |
| 772 free(info); | |
| 773 vm_exit_during_initialization("dlinfo SERINFO request", dlerror()); | |
| 774 } | |
| 775 | |
| 776 path = &info->dls_serpath[0]; | |
| 777 | |
| 778 // Note: Due to a legacy implementation, most of the library path | |
| 779 // is set in the launcher. This was to accomodate linking restrictions | |
| 780 // on legacy Solaris implementations (which are no longer supported). | |
| 781 // Eventually, all the library path setting will be done here. | |
| 782 // | |
| 783 // However, to prevent the proliferation of improperly built native | |
| 784 // libraries, the new path component /usr/jdk/packages is added here. | |
| 785 | |
| 786 // Determine the actual CPU architecture. | |
| 787 char cpu_arch[12]; | |
| 788 sysinfo(SI_ARCHITECTURE, cpu_arch, sizeof(cpu_arch)); | |
| 789 #ifdef _LP64 | |
| 790 // If we are a 64-bit vm, perform the following translations: | |
| 791 // sparc -> sparcv9 | |
| 792 // i386 -> amd64 | |
| 793 if (strcmp(cpu_arch, "sparc") == 0) | |
| 794 strcat(cpu_arch, "v9"); | |
| 795 else if (strcmp(cpu_arch, "i386") == 0) | |
| 796 strcpy(cpu_arch, "amd64"); | |
| 797 #endif | |
| 798 | |
| 799 // Construct the invariant part of ld_library_path. Note that the | |
| 800 // space for the colon and the trailing null are provided by the | |
| 801 // nulls included by the sizeof operator. | |
| 802 size_t bufsize = sizeof(COMMON_DIR) + sizeof("/lib/") + strlen(cpu_arch); | |
| 803 common_path = malloc(bufsize); | |
| 804 if (common_path == NULL) { | |
| 805 free(info); | |
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806 vm_exit_out_of_memory(bufsize, OOM_MALLOC_ERROR, |
| 0 | 807 "init_system_properties_values common_path"); |
| 808 } | |
| 809 sprintf(common_path, COMMON_DIR "/lib/%s", cpu_arch); | |
| 810 | |
| 811 // struct size is more than sufficient for the path components obtained | |
| 812 // through the dlinfo() call, so only add additional space for the path | |
| 813 // components explicitly added here. | |
| 814 bufsize = info->dls_size + strlen(common_path); | |
| 815 library_path = malloc(bufsize); | |
| 816 if (library_path == NULL) { | |
| 817 free(info); | |
| 818 free(common_path); | |
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819 vm_exit_out_of_memory(bufsize, OOM_MALLOC_ERROR, |
| 0 | 820 "init_system_properties_values library_path"); |
| 821 } | |
| 822 library_path[0] = '\0'; | |
| 823 | |
| 824 // Construct the desired Java library path from the linker's library | |
| 825 // search path. | |
| 826 // | |
| 827 // For compatibility, it is optimal that we insert the additional path | |
| 828 // components specific to the Java VM after those components specified | |
| 829 // in LD_LIBRARY_PATH (if any) but before those added by the ld.so | |
| 830 // infrastructure. | |
| 831 if (info->dls_cnt == 0) { // Not sure this can happen, but allow for it | |
| 832 strcpy(library_path, common_path); | |
| 833 } else { | |
| 834 int inserted = 0; | |
| 835 for (i = 0; i < info->dls_cnt; i++, path++) { | |
| 836 uint_t flags = path->dls_flags & LA_SER_MASK; | |
| 837 if (((flags & LA_SER_LIBPATH) == 0) && !inserted) { | |
| 838 strcat(library_path, common_path); | |
| 839 strcat(library_path, os::path_separator()); | |
| 840 inserted = 1; | |
| 841 } | |
| 842 strcat(library_path, path->dls_name); | |
| 843 strcat(library_path, os::path_separator()); | |
| 844 } | |
| 845 // eliminate trailing path separator | |
| 846 library_path[strlen(library_path)-1] = '\0'; | |
| 847 } | |
| 848 | |
| 849 // happens before argument parsing - can't use a trace flag | |
| 850 // tty->print_raw("init_system_properties_values: native lib path: "); | |
| 851 // tty->print_raw_cr(library_path); | |
| 852 | |
| 853 // callee copies into its own buffer | |
| 854 Arguments::set_library_path(library_path); | |
| 855 | |
| 856 free(common_path); | |
| 857 free(library_path); | |
| 858 free(info); | |
| 859 } | |
| 860 | |
| 861 /* | |
| 862 * Extensions directories. | |
| 863 * | |
| 864 * Note that the space for the colon and the trailing null are provided | |
| 865 * by the nulls included by the sizeof operator (so actually one byte more | |
| 866 * than necessary is allocated). | |
| 867 */ | |
| 868 { | |
| 869 char *buf = (char *) malloc(strlen(Arguments::get_java_home()) + | |
| 870 sizeof(EXTENSIONS_DIR) + sizeof(COMMON_DIR) + | |
| 871 sizeof(EXTENSIONS_DIR)); | |
| 872 sprintf(buf, "%s" EXTENSIONS_DIR ":" COMMON_DIR EXTENSIONS_DIR, | |
| 873 Arguments::get_java_home()); | |
| 874 Arguments::set_ext_dirs(buf); | |
| 875 } | |
| 876 | |
| 877 /* Endorsed standards default directory. */ | |
| 878 { | |
| 879 char * buf = malloc(strlen(Arguments::get_java_home()) + sizeof(ENDORSED_DIR)); | |
| 880 sprintf(buf, "%s" ENDORSED_DIR, Arguments::get_java_home()); | |
| 881 Arguments::set_endorsed_dirs(buf); | |
| 882 } | |
| 883 } | |
| 884 | |
| 885 #undef malloc | |
| 886 #undef free | |
| 887 #undef getenv | |
| 888 #undef EXTENSIONS_DIR | |
| 889 #undef ENDORSED_DIR | |
| 890 #undef COMMON_DIR | |
| 891 | |
| 892 } | |
| 893 | |
| 894 void os::breakpoint() { | |
| 895 BREAKPOINT; | |
| 896 } | |
| 897 | |
| 898 bool os::obsolete_option(const JavaVMOption *option) | |
| 899 { | |
| 900 if (!strncmp(option->optionString, "-Xt", 3)) { | |
| 901 return true; | |
| 902 } else if (!strncmp(option->optionString, "-Xtm", 4)) { | |
| 903 return true; | |
| 904 } else if (!strncmp(option->optionString, "-Xverifyheap", 12)) { | |
| 905 return true; | |
| 906 } else if (!strncmp(option->optionString, "-Xmaxjitcodesize", 16)) { | |
| 907 return true; | |
| 908 } | |
| 909 return false; | |
| 910 } | |
| 911 | |
| 912 bool os::Solaris::valid_stack_address(Thread* thread, address sp) { | |
| 913 address stackStart = (address)thread->stack_base(); | |
| 914 address stackEnd = (address)(stackStart - (address)thread->stack_size()); | |
| 915 if (sp < stackStart && sp >= stackEnd ) return true; | |
| 916 return false; | |
| 917 } | |
| 918 | |
| 919 extern "C" void breakpoint() { | |
| 920 // use debugger to set breakpoint here | |
| 921 } | |
| 922 | |
| 923 static thread_t main_thread; | |
| 924 | |
| 925 // Thread start routine for all new Java threads | |
| 926 extern "C" void* java_start(void* thread_addr) { | |
| 927 // Try to randomize the cache line index of hot stack frames. | |
| 928 // This helps when threads of the same stack traces evict each other's | |
| 929 // cache lines. The threads can be either from the same JVM instance, or | |
| 930 // from different JVM instances. The benefit is especially true for | |
| 931 // processors with hyperthreading technology. | |
| 932 static int counter = 0; | |
| 933 int pid = os::current_process_id(); | |
| 934 alloca(((pid ^ counter++) & 7) * 128); | |
| 935 | |
| 936 int prio; | |
| 937 Thread* thread = (Thread*)thread_addr; | |
| 938 OSThread* osthr = thread->osthread(); | |
| 939 | |
| 940 osthr->set_lwp_id( _lwp_self() ); // Store lwp in case we are bound | |
| 941 thread->_schedctl = (void *) schedctl_init () ; | |
| 942 | |
| 943 if (UseNUMA) { | |
| 944 int lgrp_id = os::numa_get_group_id(); | |
| 945 if (lgrp_id != -1) { | |
| 946 thread->set_lgrp_id(lgrp_id); | |
| 947 } | |
| 948 } | |
| 949 | |
| 950 // If the creator called set priority before we started, | |
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951 // we need to call set_native_priority now that we have an lwp. |
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952 // We used to get the priority from thr_getprio (we called |
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953 // thr_setprio way back in create_thread) and pass it to |
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954 // set_native_priority, but Solaris scales the priority |
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955 // in java_to_os_priority, so when we read it back here, |
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956 // we pass trash to set_native_priority instead of what's |
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957 // in java_to_os_priority. So we save the native priority |
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958 // in the osThread and recall it here. |
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959 |
| 0 | 960 if ( osthr->thread_id() != -1 ) { |
| 961 if ( UseThreadPriorities ) { | |
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962 int prio = osthr->native_priority(); |
| 0 | 963 if (ThreadPriorityVerbose) { |
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964 tty->print_cr("Starting Thread " INTPTR_FORMAT ", LWP is " |
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965 INTPTR_FORMAT ", setting priority: %d\n", |
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966 osthr->thread_id(), osthr->lwp_id(), prio); |
| 0 | 967 } |
| 968 os::set_native_priority(thread, prio); | |
| 969 } | |
| 970 } else if (ThreadPriorityVerbose) { | |
| 971 warning("Can't set priority in _start routine, thread id hasn't been set\n"); | |
| 972 } | |
| 973 | |
| 974 assert(osthr->get_state() == RUNNABLE, "invalid os thread state"); | |
| 975 | |
| 976 // initialize signal mask for this thread | |
| 977 os::Solaris::hotspot_sigmask(thread); | |
| 978 | |
| 979 thread->run(); | |
| 980 | |
| 981 // One less thread is executing | |
| 982 // When the VMThread gets here, the main thread may have already exited | |
| 983 // which frees the CodeHeap containing the Atomic::dec code | |
| 984 if (thread != VMThread::vm_thread() && VMThread::vm_thread() != NULL) { | |
| 985 Atomic::dec(&os::Solaris::_os_thread_count); | |
| 986 } | |
| 987 | |
| 988 if (UseDetachedThreads) { | |
| 989 thr_exit(NULL); | |
| 990 ShouldNotReachHere(); | |
| 991 } | |
| 992 return NULL; | |
| 993 } | |
| 994 | |
| 995 static OSThread* create_os_thread(Thread* thread, thread_t thread_id) { | |
| 996 // Allocate the OSThread object | |
| 997 OSThread* osthread = new OSThread(NULL, NULL); | |
| 998 if (osthread == NULL) return NULL; | |
| 999 | |
| 1000 // Store info on the Solaris thread into the OSThread | |
| 1001 osthread->set_thread_id(thread_id); | |
| 1002 osthread->set_lwp_id(_lwp_self()); | |
| 1003 thread->_schedctl = (void *) schedctl_init () ; | |
| 1004 | |
| 1005 if (UseNUMA) { | |
| 1006 int lgrp_id = os::numa_get_group_id(); | |
| 1007 if (lgrp_id != -1) { | |
| 1008 thread->set_lgrp_id(lgrp_id); | |
| 1009 } | |
| 1010 } | |
| 1011 | |
| 1012 if ( ThreadPriorityVerbose ) { | |
| 1013 tty->print_cr("In create_os_thread, Thread " INTPTR_FORMAT ", LWP is " INTPTR_FORMAT "\n", | |
| 1014 osthread->thread_id(), osthread->lwp_id() ); | |
| 1015 } | |
| 1016 | |
| 1017 // Initial thread state is INITIALIZED, not SUSPENDED | |
| 1018 osthread->set_state(INITIALIZED); | |
| 1019 | |
| 1020 return osthread; | |
| 1021 } | |
| 1022 | |
| 1023 void os::Solaris::hotspot_sigmask(Thread* thread) { | |
| 1024 | |
| 1025 //Save caller's signal mask | |
| 1026 sigset_t sigmask; | |
| 1027 thr_sigsetmask(SIG_SETMASK, NULL, &sigmask); | |
| 1028 OSThread *osthread = thread->osthread(); | |
| 1029 osthread->set_caller_sigmask(sigmask); | |
| 1030 | |
| 1031 thr_sigsetmask(SIG_UNBLOCK, os::Solaris::unblocked_signals(), NULL); | |
| 1032 if (!ReduceSignalUsage) { | |
| 1033 if (thread->is_VM_thread()) { | |
| 1034 // Only the VM thread handles BREAK_SIGNAL ... | |
| 1035 thr_sigsetmask(SIG_UNBLOCK, vm_signals(), NULL); | |
| 1036 } else { | |
| 1037 // ... all other threads block BREAK_SIGNAL | |
| 1038 assert(!sigismember(vm_signals(), SIGINT), "SIGINT should not be blocked"); | |
| 1039 thr_sigsetmask(SIG_BLOCK, vm_signals(), NULL); | |
| 1040 } | |
| 1041 } | |
| 1042 } | |
| 1043 | |
| 1044 bool os::create_attached_thread(JavaThread* thread) { | |
| 1045 #ifdef ASSERT | |
| 1046 thread->verify_not_published(); | |
| 1047 #endif | |
| 1048 OSThread* osthread = create_os_thread(thread, thr_self()); | |
| 1049 if (osthread == NULL) { | |
| 1050 return false; | |
| 1051 } | |
| 1052 | |
| 1053 // Initial thread state is RUNNABLE | |
| 1054 osthread->set_state(RUNNABLE); | |
| 1055 thread->set_osthread(osthread); | |
| 1056 | |
| 1057 // initialize signal mask for this thread | |
| 1058 // and save the caller's signal mask | |
| 1059 os::Solaris::hotspot_sigmask(thread); | |
| 1060 | |
| 1061 return true; | |
| 1062 } | |
| 1063 | |
| 1064 bool os::create_main_thread(JavaThread* thread) { | |
| 1065 #ifdef ASSERT | |
| 1066 thread->verify_not_published(); | |
| 1067 #endif | |
| 1068 if (_starting_thread == NULL) { | |
| 1069 _starting_thread = create_os_thread(thread, main_thread); | |
| 1070 if (_starting_thread == NULL) { | |
| 1071 return false; | |
| 1072 } | |
| 1073 } | |
| 1074 | |
| 1075 // The primodial thread is runnable from the start | |
| 1076 _starting_thread->set_state(RUNNABLE); | |
| 1077 | |
| 1078 thread->set_osthread(_starting_thread); | |
| 1079 | |
| 1080 // initialize signal mask for this thread | |
| 1081 // and save the caller's signal mask | |
| 1082 os::Solaris::hotspot_sigmask(thread); | |
| 1083 | |
| 1084 return true; | |
| 1085 } | |
| 1086 | |
| 1087 // _T2_libthread is true if we believe we are running with the newer | |
| 1088 // SunSoft lwp/libthread.so (2.8 patch, 2.9 default) | |
| 1089 bool os::Solaris::_T2_libthread = false; | |
| 1090 | |
| 1091 bool os::create_thread(Thread* thread, ThreadType thr_type, size_t stack_size) { | |
| 1092 // Allocate the OSThread object | |
| 1093 OSThread* osthread = new OSThread(NULL, NULL); | |
| 1094 if (osthread == NULL) { | |
| 1095 return false; | |
| 1096 } | |
| 1097 | |
| 1098 if ( ThreadPriorityVerbose ) { | |
| 1099 char *thrtyp; | |
| 1100 switch ( thr_type ) { | |
| 1101 case vm_thread: | |
| 1102 thrtyp = (char *)"vm"; | |
| 1103 break; | |
| 1104 case cgc_thread: | |
| 1105 thrtyp = (char *)"cgc"; | |
| 1106 break; | |
| 1107 case pgc_thread: | |
| 1108 thrtyp = (char *)"pgc"; | |
| 1109 break; | |
| 1110 case java_thread: | |
| 1111 thrtyp = (char *)"java"; | |
| 1112 break; | |
| 1113 case compiler_thread: | |
| 1114 thrtyp = (char *)"compiler"; | |
| 1115 break; | |
| 1116 case watcher_thread: | |
| 1117 thrtyp = (char *)"watcher"; | |
| 1118 break; | |
| 1119 default: | |
| 1120 thrtyp = (char *)"unknown"; | |
| 1121 break; | |
| 1122 } | |
| 1123 tty->print_cr("In create_thread, creating a %s thread\n", thrtyp); | |
| 1124 } | |
| 1125 | |
| 1126 // Calculate stack size if it's not specified by caller. | |
| 1127 if (stack_size == 0) { | |
| 1128 // The default stack size 1M (2M for LP64). | |
| 1129 stack_size = (BytesPerWord >> 2) * K * K; | |
| 1130 | |
| 1131 switch (thr_type) { | |
| 1132 case os::java_thread: | |
| 1133 // Java threads use ThreadStackSize which default value can be changed with the flag -Xss | |
| 1134 if (JavaThread::stack_size_at_create() > 0) stack_size = JavaThread::stack_size_at_create(); | |
| 1135 break; | |
| 1136 case os::compiler_thread: | |
| 1137 if (CompilerThreadStackSize > 0) { | |
| 1138 stack_size = (size_t)(CompilerThreadStackSize * K); | |
| 1139 break; | |
| 1140 } // else fall through: | |
| 1141 // use VMThreadStackSize if CompilerThreadStackSize is not defined | |
| 1142 case os::vm_thread: | |
| 1143 case os::pgc_thread: | |
| 1144 case os::cgc_thread: | |
| 1145 case os::watcher_thread: | |
| 1146 if (VMThreadStackSize > 0) stack_size = (size_t)(VMThreadStackSize * K); | |
| 1147 break; | |
| 1148 } | |
| 1149 } | |
| 1150 stack_size = MAX2(stack_size, os::Solaris::min_stack_allowed); | |
| 1151 | |
| 1152 // Initial state is ALLOCATED but not INITIALIZED | |
| 1153 osthread->set_state(ALLOCATED); | |
| 1154 | |
| 1155 if (os::Solaris::_os_thread_count > os::Solaris::_os_thread_limit) { | |
| 1156 // We got lots of threads. Check if we still have some address space left. | |
| 1157 // Need to be at least 5Mb of unreserved address space. We do check by | |
| 1158 // trying to reserve some. | |
| 1159 const size_t VirtualMemoryBangSize = 20*K*K; | |
| 1160 char* mem = os::reserve_memory(VirtualMemoryBangSize); | |
| 1161 if (mem == NULL) { | |
| 1162 delete osthread; | |
| 1163 return false; | |
| 1164 } else { | |
| 1165 // Release the memory again | |
| 1166 os::release_memory(mem, VirtualMemoryBangSize); | |
| 1167 } | |
| 1168 } | |
| 1169 | |
| 1170 // Setup osthread because the child thread may need it. | |
| 1171 thread->set_osthread(osthread); | |
| 1172 | |
| 1173 // Create the Solaris thread | |
| 1174 // explicit THR_BOUND for T2_libthread case in case | |
| 1175 // that assumption is not accurate, but our alternate signal stack | |
| 1176 // handling is based on it which must have bound threads | |
| 1177 thread_t tid = 0; | |
| 1178 long flags = (UseDetachedThreads ? THR_DETACHED : 0) | THR_SUSPENDED | |
| 1179 | ((UseBoundThreads || os::Solaris::T2_libthread() || | |
| 1180 (thr_type == vm_thread) || | |
| 1181 (thr_type == cgc_thread) || | |
| 1182 (thr_type == pgc_thread) || | |
| 1183 (thr_type == compiler_thread && BackgroundCompilation)) ? | |
| 1184 THR_BOUND : 0); | |
| 1185 int status; | |
| 1186 | |
| 1187 // 4376845 -- libthread/kernel don't provide enough LWPs to utilize all CPUs. | |
| 1188 // | |
| 1189 // On multiprocessors systems, libthread sometimes under-provisions our | |
| 1190 // process with LWPs. On a 30-way systems, for instance, we could have | |
| 1191 // 50 user-level threads in ready state and only 2 or 3 LWPs assigned | |
| 1192 // to our process. This can result in under utilization of PEs. | |
| 1193 // I suspect the problem is related to libthread's LWP | |
| 1194 // pool management and to the kernel's SIGBLOCKING "last LWP parked" | |
| 1195 // upcall policy. | |
| 1196 // | |
| 1197 // The following code is palliative -- it attempts to ensure that our | |
| 1198 // process has sufficient LWPs to take advantage of multiple PEs. | |
| 1199 // Proper long-term cures include using user-level threads bound to LWPs | |
| 1200 // (THR_BOUND) or using LWP-based synchronization. Note that there is a | |
| 1201 // slight timing window with respect to sampling _os_thread_count, but | |
| 1202 // the race is benign. Also, we should periodically recompute | |
| 1203 // _processors_online as the min of SC_NPROCESSORS_ONLN and the | |
| 1204 // the number of PEs in our partition. You might be tempted to use | |
| 1205 // THR_NEW_LWP here, but I'd recommend against it as that could | |
| 1206 // result in undesirable growth of the libthread's LWP pool. | |
| 1207 // The fix below isn't sufficient; for instance, it doesn't take into count | |
| 1208 // LWPs parked on IO. It does, however, help certain CPU-bound benchmarks. | |
| 1209 // | |
| 1210 // Some pathologies this scheme doesn't handle: | |
| 1211 // * Threads can block, releasing the LWPs. The LWPs can age out. | |
| 1212 // When a large number of threads become ready again there aren't | |
| 1213 // enough LWPs available to service them. This can occur when the | |
| 1214 // number of ready threads oscillates. | |
| 1215 // * LWPs/Threads park on IO, thus taking the LWP out of circulation. | |
| 1216 // | |
| 1217 // Finally, we should call thr_setconcurrency() periodically to refresh | |
| 1218 // the LWP pool and thwart the LWP age-out mechanism. | |
| 1219 // The "+3" term provides a little slop -- we want to slightly overprovision. | |
| 1220 | |
| 1221 if (AdjustConcurrency && os::Solaris::_os_thread_count < (_processors_online+3)) { | |
| 1222 if (!(flags & THR_BOUND)) { | |
| 1223 thr_setconcurrency (os::Solaris::_os_thread_count); // avoid starvation | |
| 1224 } | |
| 1225 } | |
| 1226 // Although this doesn't hurt, we should warn of undefined behavior | |
| 1227 // when using unbound T1 threads with schedctl(). This should never | |
| 1228 // happen, as the compiler and VM threads are always created bound | |
| 1229 DEBUG_ONLY( | |
| 1230 if ((VMThreadHintNoPreempt || CompilerThreadHintNoPreempt) && | |
| 1231 (!os::Solaris::T2_libthread() && (!(flags & THR_BOUND))) && | |
| 1232 ((thr_type == vm_thread) || (thr_type == cgc_thread) || | |
| 1233 (thr_type == pgc_thread) || (thr_type == compiler_thread && BackgroundCompilation))) { | |
| 1234 warning("schedctl behavior undefined when Compiler/VM/GC Threads are Unbound"); | |
| 1235 } | |
| 1236 ); | |
| 1237 | |
| 1238 | |
| 1239 // Mark that we don't have an lwp or thread id yet. | |
| 1240 // In case we attempt to set the priority before the thread starts. | |
| 1241 osthread->set_lwp_id(-1); | |
| 1242 osthread->set_thread_id(-1); | |
| 1243 | |
| 1244 status = thr_create(NULL, stack_size, java_start, thread, flags, &tid); | |
| 1245 if (status != 0) { | |
| 1246 if (PrintMiscellaneous && (Verbose || WizardMode)) { | |
| 1247 perror("os::create_thread"); | |
| 1248 } | |
| 1249 thread->set_osthread(NULL); | |
| 1250 // Need to clean up stuff we've allocated so far | |
| 1251 delete osthread; | |
| 1252 return false; | |
| 1253 } | |
| 1254 | |
| 1255 Atomic::inc(&os::Solaris::_os_thread_count); | |
| 1256 | |
| 1257 // Store info on the Solaris thread into the OSThread | |
| 1258 osthread->set_thread_id(tid); | |
| 1259 | |
| 1260 // Remember that we created this thread so we can set priority on it | |
| 1261 osthread->set_vm_created(); | |
| 1262 | |
|
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1263 // Set the default thread priority. If using bound threads, setting |
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1264 // lwp priority will be delayed until thread start. |
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1265 set_native_priority(thread, |
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1266 DefaultThreadPriority == -1 ? |
| 0 | 1267 java_to_os_priority[NormPriority] : |
| 1268 DefaultThreadPriority); | |
| 1269 | |
| 1270 // Initial thread state is INITIALIZED, not SUSPENDED | |
| 1271 osthread->set_state(INITIALIZED); | |
| 1272 | |
| 1273 // The thread is returned suspended (in state INITIALIZED), and is started higher up in the call chain | |
| 1274 return true; | |
| 1275 } | |
| 1276 | |
| 1277 /* defined for >= Solaris 10. This allows builds on earlier versions | |
| 1278 * of Solaris to take advantage of the newly reserved Solaris JVM signals | |
| 1279 * With SIGJVM1, SIGJVM2, INTERRUPT_SIGNAL is SIGJVM1, ASYNC_SIGNAL is SIGJVM2 | |
| 1280 * and -XX:+UseAltSigs does nothing since these should have no conflict | |
| 1281 */ | |
| 1282 #if !defined(SIGJVM1) | |
| 1283 #define SIGJVM1 39 | |
| 1284 #define SIGJVM2 40 | |
| 1285 #endif | |
| 1286 | |
| 1287 debug_only(static bool signal_sets_initialized = false); | |
| 1288 static sigset_t unblocked_sigs, vm_sigs, allowdebug_blocked_sigs; | |
| 1289 int os::Solaris::_SIGinterrupt = INTERRUPT_SIGNAL; | |
| 1290 int os::Solaris::_SIGasync = ASYNC_SIGNAL; | |
| 1291 | |
| 1292 bool os::Solaris::is_sig_ignored(int sig) { | |
| 1293 struct sigaction oact; | |
| 1294 sigaction(sig, (struct sigaction*)NULL, &oact); | |
| 1295 void* ohlr = oact.sa_sigaction ? CAST_FROM_FN_PTR(void*, oact.sa_sigaction) | |
| 1296 : CAST_FROM_FN_PTR(void*, oact.sa_handler); | |
| 1297 if (ohlr == CAST_FROM_FN_PTR(void*, SIG_IGN)) | |
| 1298 return true; | |
| 1299 else | |
| 1300 return false; | |
| 1301 } | |
| 1302 | |
| 1303 // Note: SIGRTMIN is a macro that calls sysconf() so it will | |
| 1304 // dynamically detect SIGRTMIN value for the system at runtime, not buildtime | |
| 1305 static bool isJVM1available() { | |
| 1306 return SIGJVM1 < SIGRTMIN; | |
| 1307 } | |
| 1308 | |
| 1309 void os::Solaris::signal_sets_init() { | |
| 1310 // Should also have an assertion stating we are still single-threaded. | |
| 1311 assert(!signal_sets_initialized, "Already initialized"); | |
| 1312 // Fill in signals that are necessarily unblocked for all threads in | |
| 1313 // the VM. Currently, we unblock the following signals: | |
| 1314 // SHUTDOWN{1,2,3}_SIGNAL: for shutdown hooks support (unless over-ridden | |
| 1315 // by -Xrs (=ReduceSignalUsage)); | |
| 1316 // BREAK_SIGNAL which is unblocked only by the VM thread and blocked by all | |
| 1317 // other threads. The "ReduceSignalUsage" boolean tells us not to alter | |
| 1318 // the dispositions or masks wrt these signals. | |
| 1319 // Programs embedding the VM that want to use the above signals for their | |
| 1320 // own purposes must, at this time, use the "-Xrs" option to prevent | |
| 1321 // interference with shutdown hooks and BREAK_SIGNAL thread dumping. | |
| 1322 // (See bug 4345157, and other related bugs). | |
| 1323 // In reality, though, unblocking these signals is really a nop, since | |
| 1324 // these signals are not blocked by default. | |
| 1325 sigemptyset(&unblocked_sigs); | |
| 1326 sigemptyset(&allowdebug_blocked_sigs); | |
| 1327 sigaddset(&unblocked_sigs, SIGILL); | |
| 1328 sigaddset(&unblocked_sigs, SIGSEGV); | |
| 1329 sigaddset(&unblocked_sigs, SIGBUS); | |
| 1330 sigaddset(&unblocked_sigs, SIGFPE); | |
| 1331 | |
| 1332 if (isJVM1available) { | |
| 1333 os::Solaris::set_SIGinterrupt(SIGJVM1); | |
| 1334 os::Solaris::set_SIGasync(SIGJVM2); | |
| 1335 } else if (UseAltSigs) { | |
| 1336 os::Solaris::set_SIGinterrupt(ALT_INTERRUPT_SIGNAL); | |
| 1337 os::Solaris::set_SIGasync(ALT_ASYNC_SIGNAL); | |
| 1338 } else { | |
| 1339 os::Solaris::set_SIGinterrupt(INTERRUPT_SIGNAL); | |
| 1340 os::Solaris::set_SIGasync(ASYNC_SIGNAL); | |
| 1341 } | |
| 1342 | |
| 1343 sigaddset(&unblocked_sigs, os::Solaris::SIGinterrupt()); | |
| 1344 sigaddset(&unblocked_sigs, os::Solaris::SIGasync()); | |
| 1345 | |
| 1346 if (!ReduceSignalUsage) { | |
| 1347 if (!os::Solaris::is_sig_ignored(SHUTDOWN1_SIGNAL)) { | |
| 1348 sigaddset(&unblocked_sigs, SHUTDOWN1_SIGNAL); | |
| 1349 sigaddset(&allowdebug_blocked_sigs, SHUTDOWN1_SIGNAL); | |
| 1350 } | |
| 1351 if (!os::Solaris::is_sig_ignored(SHUTDOWN2_SIGNAL)) { | |
| 1352 sigaddset(&unblocked_sigs, SHUTDOWN2_SIGNAL); | |
| 1353 sigaddset(&allowdebug_blocked_sigs, SHUTDOWN2_SIGNAL); | |
| 1354 } | |
| 1355 if (!os::Solaris::is_sig_ignored(SHUTDOWN3_SIGNAL)) { | |
| 1356 sigaddset(&unblocked_sigs, SHUTDOWN3_SIGNAL); | |
| 1357 sigaddset(&allowdebug_blocked_sigs, SHUTDOWN3_SIGNAL); | |
| 1358 } | |
| 1359 } | |
| 1360 // Fill in signals that are blocked by all but the VM thread. | |
| 1361 sigemptyset(&vm_sigs); | |
| 1362 if (!ReduceSignalUsage) | |
| 1363 sigaddset(&vm_sigs, BREAK_SIGNAL); | |
| 1364 debug_only(signal_sets_initialized = true); | |
| 1365 | |
| 1366 // For diagnostics only used in run_periodic_checks | |
| 1367 sigemptyset(&check_signal_done); | |
| 1368 } | |
| 1369 | |
| 1370 // These are signals that are unblocked while a thread is running Java. | |
| 1371 // (For some reason, they get blocked by default.) | |
| 1372 sigset_t* os::Solaris::unblocked_signals() { | |
| 1373 assert(signal_sets_initialized, "Not initialized"); | |
| 1374 return &unblocked_sigs; | |
| 1375 } | |
| 1376 | |
| 1377 // These are the signals that are blocked while a (non-VM) thread is | |
| 1378 // running Java. Only the VM thread handles these signals. | |
| 1379 sigset_t* os::Solaris::vm_signals() { | |
| 1380 assert(signal_sets_initialized, "Not initialized"); | |
| 1381 return &vm_sigs; | |
| 1382 } | |
| 1383 | |
| 1384 // These are signals that are blocked during cond_wait to allow debugger in | |
| 1385 sigset_t* os::Solaris::allowdebug_blocked_signals() { | |
| 1386 assert(signal_sets_initialized, "Not initialized"); | |
| 1387 return &allowdebug_blocked_sigs; | |
| 1388 } | |
| 1389 | |
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1390 |
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1391 void _handle_uncaught_cxx_exception() { |
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1392 VMError err("An uncaught C++ exception"); |
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1393 err.report_and_die(); |
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1394 } |
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1395 |
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1396 |
| 0 | 1397 // First crack at OS-specific initialization, from inside the new thread. |
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1398 void os::initialize_thread(Thread* thr) { |
| 0 | 1399 int r = thr_main() ; |
| 1400 guarantee (r == 0 || r == 1, "CR6501650 or CR6493689") ; | |
| 1401 if (r) { | |
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1402 JavaThread* jt = (JavaThread *)thr; |
| 0 | 1403 assert(jt != NULL,"Sanity check"); |
| 1404 size_t stack_size; | |
| 1405 address base = jt->stack_base(); | |
| 1406 if (Arguments::created_by_java_launcher()) { | |
| 1407 // Use 2MB to allow for Solaris 7 64 bit mode. | |
| 1408 stack_size = JavaThread::stack_size_at_create() == 0 | |
| 1409 ? 2048*K : JavaThread::stack_size_at_create(); | |
| 1410 | |
| 1411 // There are rare cases when we may have already used more than | |
| 1412 // the basic stack size allotment before this method is invoked. | |
| 1413 // Attempt to allow for a normally sized java_stack. | |
| 1414 size_t current_stack_offset = (size_t)(base - (address)&stack_size); | |
| 1415 stack_size += ReservedSpace::page_align_size_down(current_stack_offset); | |
| 1416 } else { | |
| 1417 // 6269555: If we were not created by a Java launcher, i.e. if we are | |
| 1418 // running embedded in a native application, treat the primordial thread | |
| 1419 // as much like a native attached thread as possible. This means using | |
| 1420 // the current stack size from thr_stksegment(), unless it is too large | |
| 1421 // to reliably setup guard pages. A reasonable max size is 8MB. | |
| 1422 size_t current_size = current_stack_size(); | |
| 1423 // This should never happen, but just in case.... | |
| 1424 if (current_size == 0) current_size = 2 * K * K; | |
| 1425 stack_size = current_size > (8 * K * K) ? (8 * K * K) : current_size; | |
| 1426 } | |
| 1427 address bottom = (address)align_size_up((intptr_t)(base - stack_size), os::vm_page_size());; | |
| 1428 stack_size = (size_t)(base - bottom); | |
| 1429 | |
| 1430 assert(stack_size > 0, "Stack size calculation problem"); | |
| 1431 | |
| 1432 if (stack_size > jt->stack_size()) { | |
| 1433 NOT_PRODUCT( | |
| 1434 struct rlimit limits; | |
| 1435 getrlimit(RLIMIT_STACK, &limits); | |
| 1436 size_t size = adjust_stack_size(base, (size_t)limits.rlim_cur); | |
| 1437 assert(size >= jt->stack_size(), "Stack size problem in main thread"); | |
| 1438 ) | |
| 1439 tty->print_cr( | |
| 1440 "Stack size of %d Kb exceeds current limit of %d Kb.\n" | |
| 1441 "(Stack sizes are rounded up to a multiple of the system page size.)\n" | |
| 1442 "See limit(1) to increase the stack size limit.", | |
| 1443 stack_size / K, jt->stack_size() / K); | |
| 1444 vm_exit(1); | |
| 1445 } | |
| 1446 assert(jt->stack_size() >= stack_size, | |
| 1447 "Attempt to map more stack than was allocated"); | |
| 1448 jt->set_stack_size(stack_size); | |
| 1449 } | |
| 1450 | |
| 1451 // 5/22/01: Right now alternate signal stacks do not handle | |
| 1452 // throwing stack overflow exceptions, see bug 4463178 | |
| 1453 // Until a fix is found for this, T2 will NOT imply alternate signal | |
| 1454 // stacks. | |
| 1455 // If using T2 libthread threads, install an alternate signal stack. | |
| 1456 // Because alternate stacks associate with LWPs on Solaris, | |
| 1457 // see sigaltstack(2), if using UNBOUND threads, or if UseBoundThreads | |
| 1458 // we prefer to explicitly stack bang. | |
| 1459 // If not using T2 libthread, but using UseBoundThreads any threads | |
| 1460 // (primordial thread, jni_attachCurrentThread) we do not create, | |
| 1461 // probably are not bound, therefore they can not have an alternate | |
| 1462 // signal stack. Since our stack banging code is generated and | |
| 1463 // is shared across threads, all threads must be bound to allow | |
| 1464 // using alternate signal stacks. The alternative is to interpose | |
| 1465 // on _lwp_create to associate an alt sig stack with each LWP, | |
| 1466 // and this could be a problem when the JVM is embedded. | |
| 1467 // We would prefer to use alternate signal stacks with T2 | |
| 1468 // Since there is currently no accurate way to detect T2 | |
| 1469 // we do not. Assuming T2 when running T1 causes sig 11s or assertions | |
| 1470 // on installing alternate signal stacks | |
| 1471 | |
| 1472 | |
| 1473 // 05/09/03: removed alternate signal stack support for Solaris | |
| 1474 // The alternate signal stack mechanism is no longer needed to | |
| 1475 // handle stack overflow. This is now handled by allocating | |
| 1476 // guard pages (red zone) and stackbanging. | |
| 1477 // Initially the alternate signal stack mechanism was removed because | |
| 1478 // it did not work with T1 llibthread. Alternate | |
| 1479 // signal stacks MUST have all threads bound to lwps. Applications | |
| 1480 // can create their own threads and attach them without their being | |
| 1481 // bound under T1. This is frequently the case for the primordial thread. | |
| 1482 // If we were ever to reenable this mechanism we would need to | |
| 1483 // use the dynamic check for T2 libthread. | |
| 1484 | |
| 1485 os::Solaris::init_thread_fpu_state(); | |
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1486 std::set_terminate(_handle_uncaught_cxx_exception); |
| 0 | 1487 } |
| 1488 | |
| 1489 | |
| 1490 | |
| 1491 // Free Solaris resources related to the OSThread | |
| 1492 void os::free_thread(OSThread* osthread) { | |
| 1493 assert(osthread != NULL, "os::free_thread but osthread not set"); | |
| 1494 | |
| 1495 | |
| 1496 // We are told to free resources of the argument thread, | |
| 1497 // but we can only really operate on the current thread. | |
| 1498 // The main thread must take the VMThread down synchronously | |
| 1499 // before the main thread exits and frees up CodeHeap | |
| 1500 guarantee((Thread::current()->osthread() == osthread | |
| 1501 || (osthread == VMThread::vm_thread()->osthread())), "os::free_thread but not current thread"); | |
| 1502 if (Thread::current()->osthread() == osthread) { | |
| 1503 // Restore caller's signal mask | |
| 1504 sigset_t sigmask = osthread->caller_sigmask(); | |
| 1505 thr_sigsetmask(SIG_SETMASK, &sigmask, NULL); | |
| 1506 } | |
| 1507 delete osthread; | |
| 1508 } | |
| 1509 | |
| 1510 void os::pd_start_thread(Thread* thread) { | |
| 1511 int status = thr_continue(thread->osthread()->thread_id()); | |
| 1512 assert_status(status == 0, status, "thr_continue failed"); | |
| 1513 } | |
| 1514 | |
| 1515 | |
| 1516 intx os::current_thread_id() { | |
| 1517 return (intx)thr_self(); | |
| 1518 } | |
| 1519 | |
| 1520 static pid_t _initial_pid = 0; | |
| 1521 | |
| 1522 int os::current_process_id() { | |
| 1523 return (int)(_initial_pid ? _initial_pid : getpid()); | |
| 1524 } | |
| 1525 | |
| 1526 int os::allocate_thread_local_storage() { | |
| 1527 // %%% in Win32 this allocates a memory segment pointed to by a | |
| 1528 // register. Dan Stein can implement a similar feature in | |
| 1529 // Solaris. Alternatively, the VM can do the same thing | |
| 1530 // explicitly: malloc some storage and keep the pointer in a | |
| 1531 // register (which is part of the thread's context) (or keep it | |
| 1532 // in TLS). | |
| 1533 // %%% In current versions of Solaris, thr_self and TSD can | |
| 1534 // be accessed via short sequences of displaced indirections. | |
| 1535 // The value of thr_self is available as %g7(36). | |
| 1536 // The value of thr_getspecific(k) is stored in %g7(12)(4)(k*4-4), | |
| 1537 // assuming that the current thread already has a value bound to k. | |
| 1538 // It may be worth experimenting with such access patterns, | |
| 1539 // and later having the parameters formally exported from a Solaris | |
| 1540 // interface. I think, however, that it will be faster to | |
| 1541 // maintain the invariant that %g2 always contains the | |
| 1542 // JavaThread in Java code, and have stubs simply | |
| 1543 // treat %g2 as a caller-save register, preserving it in a %lN. | |
| 1544 thread_key_t tk; | |
| 1545 if (thr_keycreate( &tk, NULL ) ) | |
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1546 fatal(err_msg("os::allocate_thread_local_storage: thr_keycreate failed " |
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1547 "(%s)", strerror(errno))); |
| 0 | 1548 return int(tk); |
| 1549 } | |
| 1550 | |
| 1551 void os::free_thread_local_storage(int index) { | |
| 1552 // %%% don't think we need anything here | |
| 1553 // if ( pthread_key_delete((pthread_key_t) tk) ) | |
| 1554 // fatal("os::free_thread_local_storage: pthread_key_delete failed"); | |
| 1555 } | |
| 1556 | |
| 1557 #define SMALLINT 32 // libthread allocate for tsd_common is a version specific | |
| 1558 // small number - point is NO swap space available | |
| 1559 void os::thread_local_storage_at_put(int index, void* value) { | |
| 1560 // %%% this is used only in threadLocalStorage.cpp | |
| 1561 if (thr_setspecific((thread_key_t)index, value)) { | |
| 1562 if (errno == ENOMEM) { | |
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1563 vm_exit_out_of_memory(SMALLINT, OOM_MALLOC_ERROR, |
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1564 "thr_setspecific: out of swap space"); |
| 0 | 1565 } else { |
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1566 fatal(err_msg("os::thread_local_storage_at_put: thr_setspecific failed " |
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1567 "(%s)", strerror(errno))); |
| 0 | 1568 } |
| 1569 } else { | |
| 1570 ThreadLocalStorage::set_thread_in_slot ((Thread *) value) ; | |
| 1571 } | |
| 1572 } | |
| 1573 | |
| 1574 // This function could be called before TLS is initialized, for example, when | |
| 1575 // VM receives an async signal or when VM causes a fatal error during | |
| 1576 // initialization. Return NULL if thr_getspecific() fails. | |
| 1577 void* os::thread_local_storage_at(int index) { | |
| 1578 // %%% this is used only in threadLocalStorage.cpp | |
| 1579 void* r = NULL; | |
| 1580 return thr_getspecific((thread_key_t)index, &r) != 0 ? NULL : r; | |
| 1581 } | |
| 1582 | |
| 1583 | |
| 1584 // gethrtime can move backwards if read from one cpu and then a different cpu | |
| 1585 // getTimeNanos is guaranteed to not move backward on Solaris | |
| 1586 // local spinloop created as faster for a CAS on an int than | |
| 1587 // a CAS on a 64bit jlong. Also Atomic::cmpxchg for jlong is not | |
| 1588 // supported on sparc v8 or pre supports_cx8 intel boxes. | |
| 1589 // oldgetTimeNanos for systems which do not support CAS on 64bit jlong | |
| 1590 // i.e. sparc v8 and pre supports_cx8 (i486) intel boxes | |
| 1591 inline hrtime_t oldgetTimeNanos() { | |
| 1592 int gotlock = LOCK_INVALID; | |
| 1593 hrtime_t newtime = gethrtime(); | |
| 1594 | |
| 1595 for (;;) { | |
| 1596 // grab lock for max_hrtime | |
| 1597 int curlock = max_hrtime_lock; | |
| 1598 if (curlock & LOCK_BUSY) continue; | |
| 1599 if (gotlock = Atomic::cmpxchg(LOCK_BUSY, &max_hrtime_lock, LOCK_FREE) != LOCK_FREE) continue; | |
| 1600 if (newtime > max_hrtime) { | |
| 1601 max_hrtime = newtime; | |
| 1602 } else { | |
| 1603 newtime = max_hrtime; | |
| 1604 } | |
| 1605 // release lock | |
| 1606 max_hrtime_lock = LOCK_FREE; | |
| 1607 return newtime; | |
| 1608 } | |
| 1609 } | |
| 1610 // gethrtime can move backwards if read from one cpu and then a different cpu | |
| 1611 // getTimeNanos is guaranteed to not move backward on Solaris | |
| 1612 inline hrtime_t getTimeNanos() { | |
| 1613 if (VM_Version::supports_cx8()) { | |
| 499 | 1614 const hrtime_t now = gethrtime(); |
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1615 // Use atomic long load since 32-bit x86 uses 2 registers to keep long. |
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1616 const hrtime_t prev = Atomic::load((volatile jlong*)&max_hrtime); |
| 499 | 1617 if (now <= prev) return prev; // same or retrograde time; |
| 1618 const hrtime_t obsv = Atomic::cmpxchg(now, (volatile jlong*)&max_hrtime, prev); | |
| 1619 assert(obsv >= prev, "invariant"); // Monotonicity | |
| 1620 // If the CAS succeeded then we're done and return "now". | |
| 1621 // If the CAS failed and the observed value "obs" is >= now then | |
| 1622 // we should return "obs". If the CAS failed and now > obs > prv then | |
| 1623 // some other thread raced this thread and installed a new value, in which case | |
| 1624 // we could either (a) retry the entire operation, (b) retry trying to install now | |
| 1625 // or (c) just return obs. We use (c). No loop is required although in some cases | |
| 1626 // we might discard a higher "now" value in deference to a slightly lower but freshly | |
| 1627 // installed obs value. That's entirely benign -- it admits no new orderings compared | |
| 1628 // to (a) or (b) -- and greatly reduces coherence traffic. | |
| 1629 // We might also condition (c) on the magnitude of the delta between obs and now. | |
| 1630 // Avoiding excessive CAS operations to hot RW locations is critical. | |
| 1631 // See http://blogs.sun.com/dave/entry/cas_and_cache_trivia_invalidate | |
| 1632 return (prev == obsv) ? now : obsv ; | |
| 0 | 1633 } else { |
| 1634 return oldgetTimeNanos(); | |
| 1635 } | |
| 1636 } | |
| 1637 | |
| 1638 // Time since start-up in seconds to a fine granularity. | |
| 1639 // Used by VMSelfDestructTimer and the MemProfiler. | |
| 1640 double os::elapsedTime() { | |
| 1641 return (double)(getTimeNanos() - first_hrtime) / (double)hrtime_hz; | |
| 1642 } | |
| 1643 | |
| 1644 jlong os::elapsed_counter() { | |
| 1645 return (jlong)(getTimeNanos() - first_hrtime); | |
| 1646 } | |
| 1647 | |
| 1648 jlong os::elapsed_frequency() { | |
| 1649 return hrtime_hz; | |
| 1650 } | |
| 1651 | |
| 1652 // Return the real, user, and system times in seconds from an | |
| 1653 // arbitrary fixed point in the past. | |
| 1654 bool os::getTimesSecs(double* process_real_time, | |
| 1655 double* process_user_time, | |
| 1656 double* process_system_time) { | |
| 1657 struct tms ticks; | |
| 1658 clock_t real_ticks = times(&ticks); | |
| 1659 | |
| 1660 if (real_ticks == (clock_t) (-1)) { | |
| 1661 return false; | |
| 1662 } else { | |
| 1663 double ticks_per_second = (double) clock_tics_per_sec; | |
| 1664 *process_user_time = ((double) ticks.tms_utime) / ticks_per_second; | |
| 1665 *process_system_time = ((double) ticks.tms_stime) / ticks_per_second; | |
| 1666 // For consistency return the real time from getTimeNanos() | |
| 1667 // converted to seconds. | |
| 1668 *process_real_time = ((double) getTimeNanos()) / ((double) NANOUNITS); | |
| 1669 | |
| 1670 return true; | |
| 1671 } | |
| 1672 } | |
| 1673 | |
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1674 bool os::supports_vtime() { return true; } |
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1675 |
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1676 bool os::enable_vtime() { |
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6348631: remove the use of the HPI library from Hotspot
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diff
changeset
|
1677 int fd = ::open("/proc/self/ctl", O_WRONLY); |
|
342
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|
1678 if (fd == -1) |
|
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|
1679 return false; |
|
37f87013dfd8
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|
1680 |
|
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changeset
|
1681 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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|
1682 int res = ::write(fd, cmd, sizeof(long) * 2); |
|
828eafbd85cc
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diff
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|
1683 ::close(fd); |
|
342
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diff
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|
1684 if (res != sizeof(long) * 2) |
|
37f87013dfd8
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diff
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|
1685 return false; |
|
37f87013dfd8
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diff
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|
1686 |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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diff
changeset
|
1687 return true; |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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diff
changeset
|
1688 } |
|
37f87013dfd8
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144
diff
changeset
|
1689 |
|
37f87013dfd8
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144
diff
changeset
|
1690 bool os::vtime_enabled() { |
|
1980
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changeset
|
1691 int fd = ::open("/proc/self/status", O_RDONLY); |
|
342
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|
1692 if (fd == -1) |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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diff
changeset
|
1693 return false; |
|
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diff
changeset
|
1694 |
|
37f87013dfd8
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diff
changeset
|
1695 pstatus_t status; |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
1696 int res = os::read(fd, (void*) &status, sizeof(pstatus_t)); |
|
828eafbd85cc
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|
1697 ::close(fd); |
|
342
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diff
changeset
|
1698 if (res != sizeof(pstatus_t)) |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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diff
changeset
|
1699 return false; |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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diff
changeset
|
1700 |
|
37f87013dfd8
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|
1701 return status.pr_flags & PR_MSACCT; |
|
37f87013dfd8
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|
1702 } |
|
37f87013dfd8
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diff
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|
1703 |
|
37f87013dfd8
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diff
changeset
|
1704 double os::elapsedVTime() { |
|
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|
1705 return (double)gethrvtime() / (double)hrtime_hz; |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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|
1706 } |
|
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|
1707 |
| 0 | 1708 // Used internally for comparisons only |
| 1709 // getTimeMillis guaranteed to not move backwards on Solaris | |
| 1710 jlong getTimeMillis() { | |
| 1711 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
|
1712 return (jlong)(nanotime / NANOSECS_PER_MILLISEC); |
| 0 | 1713 } |
| 1714 | |
| 61 | 1715 // Must return millis since Jan 1 1970 for JVM_CurrentTimeMillis |
| 1716 jlong os::javaTimeMillis() { | |
| 0 | 1717 timeval t; |
| 1718 if (gettimeofday( &t, NULL) == -1) | |
|
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
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|
1719 fatal(err_msg("os::javaTimeMillis: gettimeofday (%s)", strerror(errno))); |
| 0 | 1720 return jlong(t.tv_sec) * 1000 + jlong(t.tv_usec) / 1000; |
| 1721 } | |
| 1722 | |
| 1723 jlong os::javaTimeNanos() { | |
| 1724 return (jlong)getTimeNanos(); | |
| 1725 } | |
| 1726 | |
| 1727 void os::javaTimeNanos_info(jvmtiTimerInfo *info_ptr) { | |
| 1728 info_ptr->max_value = ALL_64_BITS; // gethrtime() uses all 64 bits | |
| 1729 info_ptr->may_skip_backward = false; // not subject to resetting or drifting | |
| 1730 info_ptr->may_skip_forward = false; // not subject to resetting or drifting | |
| 1731 info_ptr->kind = JVMTI_TIMER_ELAPSED; // elapsed not CPU time | |
| 1732 } | |
| 1733 | |
| 1734 char * os::local_time_string(char *buf, size_t buflen) { | |
| 1735 struct tm t; | |
| 1736 time_t long_time; | |
| 1737 time(&long_time); | |
| 1738 localtime_r(&long_time, &t); | |
| 1739 jio_snprintf(buf, buflen, "%d-%02d-%02d %02d:%02d:%02d", | |
| 1740 t.tm_year + 1900, t.tm_mon + 1, t.tm_mday, | |
| 1741 t.tm_hour, t.tm_min, t.tm_sec); | |
| 1742 return buf; | |
| 1743 } | |
| 1744 | |
| 1745 // Note: os::shutdown() might be called very early during initialization, or | |
| 1746 // called from signal handler. Before adding something to os::shutdown(), make | |
| 1747 // sure it is async-safe and can handle partially initialized VM. | |
| 1748 void os::shutdown() { | |
| 1749 | |
| 1750 // allow PerfMemory to attempt cleanup of any persistent resources | |
| 1751 perfMemory_exit(); | |
| 1752 | |
| 1753 // needs to remove object in file system | |
| 1754 AttachListener::abort(); | |
| 1755 | |
| 1756 // flush buffered output, finish log files | |
| 1757 ostream_abort(); | |
| 1758 | |
| 1759 // Check for abort hook | |
| 1760 abort_hook_t abort_hook = Arguments::abort_hook(); | |
| 1761 if (abort_hook != NULL) { | |
| 1762 abort_hook(); | |
| 1763 } | |
| 1764 } | |
| 1765 | |
| 1766 // Note: os::abort() might be called very early during initialization, or | |
| 1767 // called from signal handler. Before adding something to os::abort(), make | |
| 1768 // sure it is async-safe and can handle partially initialized VM. | |
| 1769 void os::abort(bool dump_core) { | |
| 1770 os::shutdown(); | |
| 1771 if (dump_core) { | |
| 1772 #ifndef PRODUCT | |
| 1773 fdStream out(defaultStream::output_fd()); | |
| 1774 out.print_raw("Current thread is "); | |
| 1775 char buf[16]; | |
| 1776 jio_snprintf(buf, sizeof(buf), UINTX_FORMAT, os::current_thread_id()); | |
| 1777 out.print_raw_cr(buf); | |
| 1778 out.print_raw_cr("Dumping core ..."); | |
| 1779 #endif | |
| 1780 ::abort(); // dump core (for debugging) | |
| 1781 } | |
| 1782 | |
| 1783 ::exit(1); | |
| 1784 } | |
| 1785 | |
| 1786 // Die immediately, no exit hook, no abort hook, no cleanup. | |
| 1787 void os::die() { | |
|
8066
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|
1788 ::abort(); // dump core (for debugging) |
| 0 | 1789 } |
| 1790 | |
| 1791 // unused | |
| 1792 void os::set_error_file(const char *logfile) {} | |
| 1793 | |
| 1794 // DLL functions | |
| 1795 | |
| 1796 const char* os::dll_file_extension() { return ".so"; } | |
| 1797 | |
|
2130
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2102
diff
changeset
|
1798 // This must be hard coded because it's the system's temporary |
|
34d64ad817f4
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diff
changeset
|
1799 // directory not the java application's temp directory, ala java.io.tmpdir. |
|
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|
1800 const char* os::get_temp_directory() { return "/tmp"; } |
| 0 | 1801 |
| 691 | 1802 static bool file_exists(const char* filename) { |
| 1803 struct stat statbuf; | |
| 1804 if (filename == NULL || strlen(filename) == 0) { | |
| 1805 return false; | |
| 1806 } | |
| 1807 return os::stat(filename, &statbuf) == 0; | |
| 1808 } | |
| 1809 | |
|
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changeset
|
1810 bool os::dll_build_name(char* buffer, size_t buflen, |
| 691 | 1811 const char* pname, const char* fname) { |
|
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|
1812 bool retval = false; |
| 242 | 1813 const size_t pnamelen = pname ? strlen(pname) : 0; |
| 1814 | |
|
6966
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|
1815 // Return error on buffer overflow. |
| 242 | 1816 if (pnamelen + strlen(fname) + 10 > (size_t) buflen) { |
|
6966
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changeset
|
1817 return retval; |
| 242 | 1818 } |
| 1819 | |
| 1820 if (pnamelen == 0) { | |
| 691 | 1821 snprintf(buffer, buflen, "lib%s.so", fname); |
|
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changeset
|
1822 retval = true; |
| 691 | 1823 } else if (strchr(pname, *os::path_separator()) != NULL) { |
| 1824 int n; | |
| 1825 char** pelements = split_path(pname, &n); | |
|
9059
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diff
changeset
|
1826 if (pelements == NULL) { |
| 9062 | 1827 return false; |
|
9059
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parents:
8744
diff
changeset
|
1828 } |
| 691 | 1829 for (int i = 0 ; i < n ; i++) { |
| 1830 // really shouldn't be NULL but what the heck, check can't hurt | |
| 1831 if (pelements[i] == NULL || strlen(pelements[i]) == 0) { | |
| 1832 continue; // skip the empty path values | |
| 1833 } | |
| 1834 snprintf(buffer, buflen, "%s/lib%s.so", pelements[i], fname); | |
| 1835 if (file_exists(buffer)) { | |
|
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changeset
|
1836 retval = true; |
| 691 | 1837 break; |
| 1838 } | |
| 1839 } | |
| 1840 // release the storage | |
| 1841 for (int i = 0 ; i < n ; i++) { | |
| 1842 if (pelements[i] != NULL) { | |
| 6197 | 1843 FREE_C_HEAP_ARRAY(char, pelements[i], mtInternal); |
| 691 | 1844 } |
| 1845 } | |
| 1846 if (pelements != NULL) { | |
| 6197 | 1847 FREE_C_HEAP_ARRAY(char*, pelements, mtInternal); |
| 691 | 1848 } |
| 242 | 1849 } else { |
| 691 | 1850 snprintf(buffer, buflen, "%s/lib%s.so", pname, fname); |
|
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|
1851 retval = true; |
|
6cb0d32b828b
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|
1852 } |
|
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changeset
|
1853 return retval; |
| 242 | 1854 } |
| 1855 | |
|
7456
7d42f3b08300
8005044: remove crufty '_g' support from HS runtime code
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parents:
7206
diff
changeset
|
1856 // check if addr is inside libjvm.so |
| 0 | 1857 bool os::address_is_in_vm(address addr) { |
| 1858 static address libjvm_base_addr; | |
| 1859 Dl_info dlinfo; | |
| 1860 | |
| 1861 if (libjvm_base_addr == NULL) { | |
|
11092
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|
1862 if (dladdr(CAST_FROM_FN_PTR(void *, os::address_is_in_vm), &dlinfo) != 0) { |
|
59b052799158
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|
1863 libjvm_base_addr = (address)dlinfo.dli_fbase; |
|
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|
1864 } |
| 0 | 1865 assert(libjvm_base_addr !=NULL, "Cannot obtain base address for libjvm"); |
| 1866 } | |
| 1867 | |
|
11092
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|
1868 if (dladdr((void *)addr, &dlinfo) != 0) { |
| 0 | 1869 if (libjvm_base_addr == (address)dlinfo.dli_fbase) return true; |
| 1870 } | |
| 1871 | |
| 1872 return false; | |
| 1873 } | |
| 1874 | |
| 1875 typedef int (*dladdr1_func_type) (void *, Dl_info *, void **, int); | |
| 1876 static dladdr1_func_type dladdr1_func = NULL; | |
| 1877 | |
| 1878 bool os::dll_address_to_function_name(address addr, char *buf, | |
| 1879 int buflen, int * offset) { | |
|
11092
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|
1880 // buf is not optional, but offset is optional |
|
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|
1881 assert(buf != NULL, "sanity check"); |
|
59b052799158
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changeset
|
1882 |
| 0 | 1883 Dl_info dlinfo; |
| 1884 | |
| 1885 // dladdr1_func was initialized in os::init() | |
|
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changeset
|
1886 if (dladdr1_func != NULL) { |
|
59b052799158
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|
1887 // yes, we have dladdr1 |
|
59b052799158
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|
1888 |
|
59b052799158
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|
1889 // Support for dladdr1 is checked at runtime; it may be |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
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|
1890 // available even if the vm is built on a machine that does |
|
59b052799158
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changeset
|
1891 // not have dladdr1 support. Make sure there is a value for |
|
59b052799158
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|
1892 // RTLD_DL_SYMENT. |
|
59b052799158
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|
1893 #ifndef RTLD_DL_SYMENT |
|
59b052799158
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changeset
|
1894 #define RTLD_DL_SYMENT 1 |
|
59b052799158
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10986
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changeset
|
1895 #endif |
|
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2130
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changeset
|
1896 #ifdef _LP64 |
|
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|
1897 Elf64_Sym * info; |
|
2259
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|
1898 #else |
|
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|
1899 Elf32_Sym * info; |
|
2259
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2130
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|
1900 #endif |
|
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|
1901 if (dladdr1_func((void *)addr, &dlinfo, (void **)&info, |
|
59b052799158
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|
1902 RTLD_DL_SYMENT) != 0) { |
|
59b052799158
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changeset
|
1903 // see if we have a matching symbol that covers our address |
|
59b052799158
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|
1904 if (dlinfo.dli_saddr != NULL && |
|
59b052799158
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diff
changeset
|
1905 (char *)dlinfo.dli_saddr + info->st_size > (char *)addr) { |
|
59b052799158
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|
1906 if (dlinfo.dli_sname != NULL) { |
|
59b052799158
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changeset
|
1907 if (!Decoder::demangle(dlinfo.dli_sname, buf, buflen)) { |
|
59b052799158
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|
1908 jio_snprintf(buf, buflen, "%s", dlinfo.dli_sname); |
|
59b052799158
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dcubed
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|
1909 } |
|
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|
1910 if (offset != NULL) *offset = addr - (address)dlinfo.dli_saddr; |
|
2022
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|
1911 return true; |
|
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diff
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|
1912 } |
|
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|
1913 } |
|
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|
1914 // no matching symbol so try for just file info |
|
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|
1915 if (dlinfo.dli_fname != NULL && dlinfo.dli_fbase != NULL) { |
|
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|
1916 if (Decoder::decode((address)(addr - (address)dlinfo.dli_fbase), |
|
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1917 buf, buflen, offset, dlinfo.dli_fname)) { |
| 0 | 1918 return true; |
|
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|
1919 } |
| 0 | 1920 } |
|
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|
1921 } |
|
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|
1922 buf[0] = '\0'; |
|
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1923 if (offset != NULL) *offset = -1; |
|
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1924 return false; |
|
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|
1925 } |
|
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|
1926 |
|
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1927 // no, only dladdr is available |
|
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1928 if (dladdr((void *)addr, &dlinfo) != 0) { |
|
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1929 // see if we have a matching symbol |
|
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1930 if (dlinfo.dli_saddr != NULL && dlinfo.dli_sname != NULL) { |
|
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1931 if (!Decoder::demangle(dlinfo.dli_sname, buf, buflen)) { |
|
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1932 jio_snprintf(buf, buflen, dlinfo.dli_sname); |
|
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|
1933 } |
|
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1934 if (offset != NULL) *offset = addr - (address)dlinfo.dli_saddr; |
|
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1935 return true; |
|
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|
1936 } |
|
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|
1937 // no matching symbol so try for just file info |
|
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1938 if (dlinfo.dli_fname != NULL && dlinfo.dli_fbase != NULL) { |
|
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1939 if (Decoder::decode((address)(addr - (address)dlinfo.dli_fbase), |
|
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1940 buf, buflen, offset, dlinfo.dli_fname)) { |
|
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1941 return true; |
|
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|
1942 } |
|
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|
1943 } |
|
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|
1944 } |
|
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|
1945 buf[0] = '\0'; |
|
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1946 if (offset != NULL) *offset = -1; |
|
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1947 return false; |
| 0 | 1948 } |
| 1949 | |
| 1950 bool os::dll_address_to_library_name(address addr, char* buf, | |
| 1951 int buflen, int* offset) { | |
|
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1952 // buf is not optional, but offset is optional |
|
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1953 assert(buf != NULL, "sanity check"); |
|
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1954 |
| 0 | 1955 Dl_info dlinfo; |
| 1956 | |
|
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1957 if (dladdr((void*)addr, &dlinfo) != 0) { |
|
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1958 if (dlinfo.dli_fname != NULL) { |
|
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1959 jio_snprintf(buf, buflen, "%s", dlinfo.dli_fname); |
|
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1960 } |
|
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1961 if (dlinfo.dli_fbase != NULL && offset != NULL) { |
|
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1962 *offset = addr - (address)dlinfo.dli_fbase; |
|
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|
1963 } |
|
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1964 return true; |
|
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|
1965 } |
|
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|
1966 |
|
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1967 buf[0] = '\0'; |
|
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1968 if (offset) *offset = -1; |
|
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|
1969 return false; |
| 0 | 1970 } |
| 1971 | |
| 1972 // Prints the names and full paths of all opened dynamic libraries | |
| 1973 // for current process | |
| 1974 void os::print_dll_info(outputStream * st) { | |
|
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1975 Dl_info dli; |
|
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|
1976 void *handle; |
|
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|
1977 Link_map *map; |
|
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|
1978 Link_map *p; |
|
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|
1979 |
|
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|
1980 st->print_cr("Dynamic libraries:"); st->flush(); |
|
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|
1981 |
|
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1982 if (dladdr(CAST_FROM_FN_PTR(void *, os::print_dll_info), &dli) == 0 || |
|
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|
1983 dli.dli_fname == NULL) { |
|
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|
1984 st->print_cr("Error: Cannot print dynamic libraries."); |
|
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|
1985 return; |
|
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|
1986 } |
|
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|
1987 handle = dlopen(dli.dli_fname, RTLD_LAZY); |
|
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|
1988 if (handle == NULL) { |
|
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|
1989 st->print_cr("Error: Cannot print dynamic libraries."); |
|
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|
1990 return; |
|
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|
1991 } |
|
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|
1992 dlinfo(handle, RTLD_DI_LINKMAP, &map); |
|
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|
1993 if (map == NULL) { |
|
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|
1994 st->print_cr("Error: Cannot print dynamic libraries."); |
|
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|
1995 return; |
|
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|
1996 } |
|
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|
1997 |
|
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|
1998 while (map->l_prev != NULL) |
|
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|
1999 map = map->l_prev; |
|
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|
2000 |
|
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|
2001 while (map != NULL) { |
|
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|
2002 st->print_cr(PTR_FORMAT " \t%s", map->l_addr, map->l_name); |
|
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|
2003 map = map->l_next; |
|
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|
2004 } |
|
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|
2005 |
|
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|
2006 dlclose(handle); |
| 0 | 2007 } |
| 2008 | |
| 2009 // Loads .dll/.so and | |
| 2010 // in case of error it checks if .dll/.so was built for the | |
| 2011 // same architecture as Hotspot is running on | |
| 2012 | |
| 2013 void * os::dll_load(const char *filename, char *ebuf, int ebuflen) | |
| 2014 { | |
| 2015 void * result= ::dlopen(filename, RTLD_LAZY); | |
| 2016 if (result != NULL) { | |
| 2017 // Successful loading | |
| 2018 return result; | |
| 2019 } | |
| 2020 | |
| 2021 Elf32_Ehdr elf_head; | |
| 2022 | |
| 2023 // Read system error message into ebuf | |
| 2024 // It may or may not be overwritten below | |
| 2025 ::strncpy(ebuf, ::dlerror(), ebuflen-1); | |
| 2026 ebuf[ebuflen-1]='\0'; | |
| 2027 int diag_msg_max_length=ebuflen-strlen(ebuf); | |
| 2028 char* diag_msg_buf=ebuf+strlen(ebuf); | |
| 2029 | |
| 2030 if (diag_msg_max_length==0) { | |
| 2031 // No more space in ebuf for additional diagnostics message | |
| 2032 return NULL; | |
| 2033 } | |
| 2034 | |
| 2035 | |
| 2036 int file_descriptor= ::open(filename, O_RDONLY | O_NONBLOCK); | |
| 2037 | |
| 2038 if (file_descriptor < 0) { | |
| 2039 // Can't open library, report dlerror() message | |
| 2040 return NULL; | |
| 2041 } | |
| 2042 | |
| 2043 bool failed_to_read_elf_head= | |
| 2044 (sizeof(elf_head)!= | |
| 2045 (::read(file_descriptor, &elf_head,sizeof(elf_head)))) ; | |
| 2046 | |
| 2047 ::close(file_descriptor); | |
| 2048 if (failed_to_read_elf_head) { | |
| 2049 // file i/o error - report dlerror() msg | |
| 2050 return NULL; | |
| 2051 } | |
| 2052 | |
| 2053 typedef struct { | |
| 2054 Elf32_Half code; // Actual value as defined in elf.h | |
| 2055 Elf32_Half compat_class; // Compatibility of archs at VM's sense | |
| 2056 char elf_class; // 32 or 64 bit | |
| 2057 char endianess; // MSB or LSB | |
| 2058 char* name; // String representation | |
| 2059 } arch_t; | |
| 2060 | |
| 2061 static const arch_t arch_array[]={ | |
| 2062 {EM_386, EM_386, ELFCLASS32, ELFDATA2LSB, (char*)"IA 32"}, | |
| 2063 {EM_486, EM_386, ELFCLASS32, ELFDATA2LSB, (char*)"IA 32"}, | |
| 2064 {EM_IA_64, EM_IA_64, ELFCLASS64, ELFDATA2LSB, (char*)"IA 64"}, | |
| 2065 {EM_X86_64, EM_X86_64, ELFCLASS64, ELFDATA2LSB, (char*)"AMD 64"}, | |
| 2066 {EM_SPARC, EM_SPARC, ELFCLASS32, ELFDATA2MSB, (char*)"Sparc 32"}, | |
| 2067 {EM_SPARC32PLUS, EM_SPARC, ELFCLASS32, ELFDATA2MSB, (char*)"Sparc 32"}, | |
| 2068 {EM_SPARCV9, EM_SPARCV9, ELFCLASS64, ELFDATA2MSB, (char*)"Sparc v9 64"}, | |
| 2069 {EM_PPC, EM_PPC, ELFCLASS32, ELFDATA2MSB, (char*)"Power PC 32"}, | |
|
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2070 {EM_PPC64, EM_PPC64, ELFCLASS64, ELFDATA2MSB, (char*)"Power PC 64"}, |
|
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|
2071 {EM_ARM, EM_ARM, ELFCLASS32, ELFDATA2LSB, (char*)"ARM 32"} |
| 0 | 2072 }; |
| 2073 | |
| 2074 #if (defined IA32) | |
| 2075 static Elf32_Half running_arch_code=EM_386; | |
| 2076 #elif (defined AMD64) | |
| 2077 static Elf32_Half running_arch_code=EM_X86_64; | |
| 2078 #elif (defined IA64) | |
| 2079 static Elf32_Half running_arch_code=EM_IA_64; | |
| 2080 #elif (defined __sparc) && (defined _LP64) | |
| 2081 static Elf32_Half running_arch_code=EM_SPARCV9; | |
| 2082 #elif (defined __sparc) && (!defined _LP64) | |
| 2083 static Elf32_Half running_arch_code=EM_SPARC; | |
| 2084 #elif (defined __powerpc64__) | |
| 2085 static Elf32_Half running_arch_code=EM_PPC64; | |
| 2086 #elif (defined __powerpc__) | |
| 2087 static Elf32_Half running_arch_code=EM_PPC; | |
|
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|
2088 #elif (defined ARM) |
|
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|
2089 static Elf32_Half running_arch_code=EM_ARM; |
| 0 | 2090 #else |
| 2091 #error Method os::dll_load requires that one of following is defined:\ | |
|
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|
2092 IA32, AMD64, IA64, __sparc, __powerpc__, ARM, ARM |
| 0 | 2093 #endif |
| 2094 | |
| 2095 // Identify compatability class for VM's architecture and library's architecture | |
| 2096 // Obtain string descriptions for architectures | |
| 2097 | |
| 2098 arch_t lib_arch={elf_head.e_machine,0,elf_head.e_ident[EI_CLASS], elf_head.e_ident[EI_DATA], NULL}; | |
| 2099 int running_arch_index=-1; | |
| 2100 | |
| 2101 for (unsigned int i=0 ; i < ARRAY_SIZE(arch_array) ; i++ ) { | |
| 2102 if (running_arch_code == arch_array[i].code) { | |
| 2103 running_arch_index = i; | |
| 2104 } | |
| 2105 if (lib_arch.code == arch_array[i].code) { | |
| 2106 lib_arch.compat_class = arch_array[i].compat_class; | |
| 2107 lib_arch.name = arch_array[i].name; | |
| 2108 } | |
| 2109 } | |
| 2110 | |
| 2111 assert(running_arch_index != -1, | |
| 2112 "Didn't find running architecture code (running_arch_code) in arch_array"); | |
| 2113 if (running_arch_index == -1) { | |
| 2114 // Even though running architecture detection failed | |
| 2115 // we may still continue with reporting dlerror() message | |
| 2116 return NULL; | |
| 2117 } | |
| 2118 | |
| 2119 if (lib_arch.endianess != arch_array[running_arch_index].endianess) { | |
| 2120 ::snprintf(diag_msg_buf, diag_msg_max_length-1," (Possible cause: endianness mismatch)"); | |
| 2121 return NULL; | |
| 2122 } | |
| 2123 | |
| 2124 if (lib_arch.elf_class != arch_array[running_arch_index].elf_class) { | |
| 2125 ::snprintf(diag_msg_buf, diag_msg_max_length-1," (Possible cause: architecture word width mismatch)"); | |
| 2126 return NULL; | |
| 2127 } | |
| 2128 | |
| 2129 if (lib_arch.compat_class != arch_array[running_arch_index].compat_class) { | |
| 2130 if ( lib_arch.name!=NULL ) { | |
| 2131 ::snprintf(diag_msg_buf, diag_msg_max_length-1, | |
| 2132 " (Possible cause: can't load %s-bit .so on a %s-bit platform)", | |
| 2133 lib_arch.name, arch_array[running_arch_index].name); | |
| 2134 } else { | |
| 2135 ::snprintf(diag_msg_buf, diag_msg_max_length-1, | |
| 2136 " (Possible cause: can't load this .so (machine code=0x%x) on a %s-bit platform)", | |
| 2137 lib_arch.code, | |
| 2138 arch_array[running_arch_index].name); | |
| 2139 } | |
| 2140 } | |
| 2141 | |
| 2142 return NULL; | |
| 2143 } | |
| 2144 | |
| 242 | 2145 void* os::dll_lookup(void* handle, const char* name) { |
| 2146 return dlsym(handle, name); | |
| 2147 } | |
| 0 | 2148 |
|
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828eafbd85cc
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diff
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|
2149 int os::stat(const char *path, struct stat *sbuf) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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diff
changeset
|
2150 char pathbuf[MAX_PATH]; |
|
828eafbd85cc
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parents:
1972
diff
changeset
|
2151 if (strlen(path) > MAX_PATH - 1) { |
|
828eafbd85cc
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1972
diff
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|
2152 errno = ENAMETOOLONG; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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diff
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|
2153 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
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|
2154 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
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|
2155 os::native_path(strcpy(pathbuf, path)); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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1972
diff
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|
2156 return ::stat(pathbuf, sbuf); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2157 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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1972
diff
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|
2158 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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parents:
1972
diff
changeset
|
2159 static bool _print_ascii_file(const char* filename, outputStream* st) { |
|
828eafbd85cc
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ikrylov
parents:
1972
diff
changeset
|
2160 int fd = ::open(filename, O_RDONLY); |
| 0 | 2161 if (fd == -1) { |
| 2162 return false; | |
| 2163 } | |
| 2164 | |
| 2165 char buf[32]; | |
| 2166 int bytes; | |
|
1980
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parents:
1972
diff
changeset
|
2167 while ((bytes = ::read(fd, buf, sizeof(buf))) > 0) { |
| 0 | 2168 st->print_raw(buf, bytes); |
| 2169 } | |
| 2170 | |
|
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1972
diff
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|
2171 ::close(fd); |
| 0 | 2172 |
| 2173 return true; | |
| 2174 } | |
| 2175 | |
|
6080
7432b9db36ff
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|
2176 void os::print_os_info_brief(outputStream* st) { |
|
7432b9db36ff
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diff
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|
2177 os::Solaris::print_distro_info(st); |
|
7432b9db36ff
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5903
diff
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|
2178 |
|
7432b9db36ff
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5903
diff
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|
2179 os::Posix::print_uname_info(st); |
|
7432b9db36ff
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5903
diff
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|
2180 |
|
7432b9db36ff
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5903
diff
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|
2181 os::Solaris::print_libversion_info(st); |
|
7432b9db36ff
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5903
diff
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|
2182 } |
|
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diff
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|
2183 |
| 0 | 2184 void os::print_os_info(outputStream* st) { |
| 2185 st->print("OS:"); | |
| 2186 | |
|
6080
7432b9db36ff
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5903
diff
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|
2187 os::Solaris::print_distro_info(st); |
|
7432b9db36ff
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5903
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|
2188 |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
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5903
diff
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|
2189 os::Posix::print_uname_info(st); |
|
7432b9db36ff
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5903
diff
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|
2190 |
|
7432b9db36ff
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diff
changeset
|
2191 os::Solaris::print_libversion_info(st); |
|
7432b9db36ff
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5903
diff
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|
2192 |
|
7432b9db36ff
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5903
diff
changeset
|
2193 os::Posix::print_rlimit_info(st); |
|
7432b9db36ff
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diff
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|
2194 |
|
7432b9db36ff
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5903
diff
changeset
|
2195 os::Posix::print_load_average(st); |
|
7432b9db36ff
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5903
diff
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|
2196 } |
|
7432b9db36ff
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5903
diff
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|
2197 |
|
7432b9db36ff
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diff
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|
2198 void os::Solaris::print_distro_info(outputStream* st) { |
| 0 | 2199 if (!_print_ascii_file("/etc/release", st)) { |
|
6080
7432b9db36ff
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|
2200 st->print("Solaris"); |
|
7432b9db36ff
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5903
diff
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|
2201 } |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
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5903
diff
changeset
|
2202 st->cr(); |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
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5903
diff
changeset
|
2203 } |
|
7432b9db36ff
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5903
diff
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|
2204 |
|
7432b9db36ff
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5903
diff
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|
2205 void os::Solaris::print_libversion_info(outputStream* st) { |
|
7432b9db36ff
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5903
diff
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|
2206 if (os::Solaris::T2_libthread()) { |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
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5903
diff
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|
2207 st->print(" (T2 libthread)"); |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
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5903
diff
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|
2208 } |
|
7432b9db36ff
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diff
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|
2209 else { |
|
7432b9db36ff
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5903
diff
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|
2210 st->print(" (T1 libthread)"); |
| 0 | 2211 } |
| 2212 st->cr(); | |
|
6080
7432b9db36ff
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5903
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|
2213 } |
| 0 | 2214 |
| 2215 static bool check_addr0(outputStream* st) { | |
| 2216 jboolean status = false; | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2217 int fd = ::open("/proc/self/map",O_RDONLY); |
| 0 | 2218 if (fd >= 0) { |
| 2219 prmap_t p; | |
|
1980
828eafbd85cc
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ikrylov
parents:
1972
diff
changeset
|
2220 while(::read(fd, &p, sizeof(p)) > 0) { |
| 0 | 2221 if (p.pr_vaddr == 0x0) { |
| 2222 st->print("Warning: Address: 0x%x, Size: %dK, ",p.pr_vaddr, p.pr_size/1024, p.pr_mapname); | |
| 2223 st->print("Mapped file: %s, ", p.pr_mapname[0] == '\0' ? "None" : p.pr_mapname); | |
| 2224 st->print("Access:"); | |
| 2225 st->print("%s",(p.pr_mflags & MA_READ) ? "r" : "-"); | |
| 2226 st->print("%s",(p.pr_mflags & MA_WRITE) ? "w" : "-"); | |
| 2227 st->print("%s",(p.pr_mflags & MA_EXEC) ? "x" : "-"); | |
| 2228 st->cr(); | |
| 2229 status = true; | |
| 2230 } | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2231 ::close(fd); |
| 0 | 2232 } |
| 2233 } | |
| 2234 return status; | |
| 2235 } | |
| 2236 | |
|
3800
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
jcoomes
parents:
3318
diff
changeset
|
2237 void os::pd_print_cpu_info(outputStream* st) { |
|
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
jcoomes
parents:
3318
diff
changeset
|
2238 // Nothing to do for now. |
|
bf6481e5f96d
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jcoomes
parents:
3318
diff
changeset
|
2239 } |
|
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3318
diff
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|
2240 |
| 0 | 2241 void os::print_memory_info(outputStream* st) { |
| 2242 st->print("Memory:"); | |
| 2243 st->print(" %dk page", os::vm_page_size()>>10); | |
| 2244 st->print(", physical " UINT64_FORMAT "k", os::physical_memory()>>10); | |
| 2245 st->print("(" UINT64_FORMAT "k free)", os::available_memory() >> 10); | |
| 2246 st->cr(); | |
| 2247 (void) check_addr0(st); | |
| 2248 } | |
| 2249 | |
| 2250 // Taken from /usr/include/sys/machsig.h Supposed to be architecture specific | |
| 2251 // but they're the same for all the solaris architectures that we support. | |
| 2252 const char *ill_names[] = { "ILL0", "ILL_ILLOPC", "ILL_ILLOPN", "ILL_ILLADR", | |
| 2253 "ILL_ILLTRP", "ILL_PRVOPC", "ILL_PRVREG", | |
| 2254 "ILL_COPROC", "ILL_BADSTK" }; | |
| 2255 | |
| 2256 const char *fpe_names[] = { "FPE0", "FPE_INTDIV", "FPE_INTOVF", "FPE_FLTDIV", | |
| 2257 "FPE_FLTOVF", "FPE_FLTUND", "FPE_FLTRES", | |
| 2258 "FPE_FLTINV", "FPE_FLTSUB" }; | |
| 2259 | |
| 2260 const char *segv_names[] = { "SEGV0", "SEGV_MAPERR", "SEGV_ACCERR" }; | |
| 2261 | |
| 2262 const char *bus_names[] = { "BUS0", "BUS_ADRALN", "BUS_ADRERR", "BUS_OBJERR" }; | |
| 2263 | |
| 2264 void os::print_siginfo(outputStream* st, void* siginfo) { | |
| 2265 st->print("siginfo:"); | |
| 2266 | |
| 2267 const int buflen = 100; | |
| 2268 char buf[buflen]; | |
| 2269 siginfo_t *si = (siginfo_t*)siginfo; | |
| 2270 st->print("si_signo=%s: ", os::exception_name(si->si_signo, buf, buflen)); | |
| 2271 char *err = strerror(si->si_errno); | |
| 2272 if (si->si_errno != 0 && err != NULL) { | |
| 2273 st->print("si_errno=%s", err); | |
| 2274 } else { | |
| 2275 st->print("si_errno=%d", si->si_errno); | |
| 2276 } | |
| 2277 const int c = si->si_code; | |
| 2278 assert(c > 0, "unexpected si_code"); | |
| 2279 switch (si->si_signo) { | |
| 2280 case SIGILL: | |
| 2281 st->print(", si_code=%d (%s)", c, c > 8 ? "" : ill_names[c]); | |
| 2282 st->print(", si_addr=" PTR_FORMAT, si->si_addr); | |
| 2283 break; | |
| 2284 case SIGFPE: | |
| 2285 st->print(", si_code=%d (%s)", c, c > 9 ? "" : fpe_names[c]); | |
| 2286 st->print(", si_addr=" PTR_FORMAT, si->si_addr); | |
| 2287 break; | |
| 2288 case SIGSEGV: | |
| 2289 st->print(", si_code=%d (%s)", c, c > 2 ? "" : segv_names[c]); | |
| 2290 st->print(", si_addr=" PTR_FORMAT, si->si_addr); | |
| 2291 break; | |
| 2292 case SIGBUS: | |
| 2293 st->print(", si_code=%d (%s)", c, c > 3 ? "" : bus_names[c]); | |
| 2294 st->print(", si_addr=" PTR_FORMAT, si->si_addr); | |
| 2295 break; | |
| 2296 default: | |
| 2297 st->print(", si_code=%d", si->si_code); | |
| 2298 // no si_addr | |
| 2299 } | |
| 2300 | |
| 2301 if ((si->si_signo == SIGBUS || si->si_signo == SIGSEGV) && | |
| 2302 UseSharedSpaces) { | |
| 2303 FileMapInfo* mapinfo = FileMapInfo::current_info(); | |
| 2304 if (mapinfo->is_in_shared_space(si->si_addr)) { | |
| 2305 st->print("\n\nError accessing class data sharing archive." \ | |
| 2306 " Mapped file inaccessible during execution, " \ | |
| 2307 " possible disk/network problem."); | |
| 2308 } | |
| 2309 } | |
| 2310 st->cr(); | |
| 2311 } | |
| 2312 | |
| 2313 // Moved from whole group, because we need them here for diagnostic | |
| 2314 // prints. | |
| 2315 #define OLDMAXSIGNUM 32 | |
| 2316 static int Maxsignum = 0; | |
| 2317 static int *ourSigFlags = NULL; | |
| 2318 | |
| 2319 extern "C" void sigINTRHandler(int, siginfo_t*, void*); | |
| 2320 | |
| 2321 int os::Solaris::get_our_sigflags(int sig) { | |
| 2322 assert(ourSigFlags!=NULL, "signal data structure not initialized"); | |
| 2323 assert(sig > 0 && sig < Maxsignum, "vm signal out of expected range"); | |
| 2324 return ourSigFlags[sig]; | |
| 2325 } | |
| 2326 | |
| 2327 void os::Solaris::set_our_sigflags(int sig, int flags) { | |
| 2328 assert(ourSigFlags!=NULL, "signal data structure not initialized"); | |
| 2329 assert(sig > 0 && sig < Maxsignum, "vm signal out of expected range"); | |
| 2330 ourSigFlags[sig] = flags; | |
| 2331 } | |
| 2332 | |
| 2333 | |
| 2334 static const char* get_signal_handler_name(address handler, | |
| 2335 char* buf, int buflen) { | |
| 2336 int offset; | |
| 2337 bool found = os::dll_address_to_library_name(handler, buf, buflen, &offset); | |
| 2338 if (found) { | |
| 2339 // skip directory names | |
| 2340 const char *p1, *p2; | |
| 2341 p1 = buf; | |
| 2342 size_t len = strlen(os::file_separator()); | |
| 2343 while ((p2 = strstr(p1, os::file_separator())) != NULL) p1 = p2 + len; | |
| 2344 jio_snprintf(buf, buflen, "%s+0x%x", p1, offset); | |
| 2345 } else { | |
| 2346 jio_snprintf(buf, buflen, PTR_FORMAT, handler); | |
| 2347 } | |
| 2348 return buf; | |
| 2349 } | |
| 2350 | |
| 2351 static void print_signal_handler(outputStream* st, int sig, | |
| 2352 char* buf, size_t buflen) { | |
| 2353 struct sigaction sa; | |
| 2354 | |
| 2355 sigaction(sig, NULL, &sa); | |
| 2356 | |
| 2357 st->print("%s: ", os::exception_name(sig, buf, buflen)); | |
| 2358 | |
| 2359 address handler = (sa.sa_flags & SA_SIGINFO) | |
| 2360 ? CAST_FROM_FN_PTR(address, sa.sa_sigaction) | |
| 2361 : CAST_FROM_FN_PTR(address, sa.sa_handler); | |
| 2362 | |
| 2363 if (handler == CAST_FROM_FN_PTR(address, SIG_DFL)) { | |
| 2364 st->print("SIG_DFL"); | |
| 2365 } else if (handler == CAST_FROM_FN_PTR(address, SIG_IGN)) { | |
| 2366 st->print("SIG_IGN"); | |
| 2367 } else { | |
| 2368 st->print("[%s]", get_signal_handler_name(handler, buf, buflen)); | |
| 2369 } | |
| 2370 | |
| 2371 st->print(", sa_mask[0]=" PTR32_FORMAT, *(uint32_t*)&sa.sa_mask); | |
| 2372 | |
| 2373 address rh = VMError::get_resetted_sighandler(sig); | |
| 2374 // May be, handler was resetted by VMError? | |
| 2375 if(rh != NULL) { | |
| 2376 handler = rh; | |
| 2377 sa.sa_flags = VMError::get_resetted_sigflags(sig); | |
| 2378 } | |
| 2379 | |
| 2380 st->print(", sa_flags=" PTR32_FORMAT, sa.sa_flags); | |
| 2381 | |
| 2382 // Check: is it our handler? | |
| 2383 if(handler == CAST_FROM_FN_PTR(address, signalHandler) || | |
| 2384 handler == CAST_FROM_FN_PTR(address, sigINTRHandler)) { | |
| 2385 // It is our signal handler | |
| 2386 // check for flags | |
| 2387 if(sa.sa_flags != os::Solaris::get_our_sigflags(sig)) { | |
| 2388 st->print( | |
| 2389 ", flags was changed from " PTR32_FORMAT ", consider using jsig library", | |
| 2390 os::Solaris::get_our_sigflags(sig)); | |
| 2391 } | |
| 2392 } | |
| 2393 st->cr(); | |
| 2394 } | |
| 2395 | |
| 2396 void os::print_signal_handlers(outputStream* st, char* buf, size_t buflen) { | |
| 2397 st->print_cr("Signal Handlers:"); | |
| 2398 print_signal_handler(st, SIGSEGV, buf, buflen); | |
| 2399 print_signal_handler(st, SIGBUS , buf, buflen); | |
| 2400 print_signal_handler(st, SIGFPE , buf, buflen); | |
| 2401 print_signal_handler(st, SIGPIPE, buf, buflen); | |
| 2402 print_signal_handler(st, SIGXFSZ, buf, buflen); | |
| 2403 print_signal_handler(st, SIGILL , buf, buflen); | |
| 2404 print_signal_handler(st, INTERRUPT_SIGNAL, buf, buflen); | |
| 2405 print_signal_handler(st, ASYNC_SIGNAL, buf, buflen); | |
| 2406 print_signal_handler(st, BREAK_SIGNAL, buf, buflen); | |
| 2407 print_signal_handler(st, SHUTDOWN1_SIGNAL , buf, buflen); | |
| 2408 print_signal_handler(st, SHUTDOWN2_SIGNAL , buf, buflen); | |
| 2409 print_signal_handler(st, SHUTDOWN3_SIGNAL, buf, buflen); | |
| 2410 print_signal_handler(st, os::Solaris::SIGinterrupt(), buf, buflen); | |
| 2411 print_signal_handler(st, os::Solaris::SIGasync(), buf, buflen); | |
| 2412 } | |
| 2413 | |
| 2414 static char saved_jvm_path[MAXPATHLEN] = { 0 }; | |
| 2415 | |
|
7456
7d42f3b08300
8005044: remove crufty '_g' support from HS runtime code
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parents:
7206
diff
changeset
|
2416 // Find the full path to the current module, libjvm.so |
| 0 | 2417 void os::jvm_path(char *buf, jint buflen) { |
| 2418 // Error checking. | |
| 2419 if (buflen < MAXPATHLEN) { | |
| 2420 assert(false, "must use a large-enough buffer"); | |
| 2421 buf[0] = '\0'; | |
| 2422 return; | |
| 2423 } | |
| 2424 // Lazy resolve the path to current module. | |
| 2425 if (saved_jvm_path[0] != 0) { | |
| 2426 strcpy(buf, saved_jvm_path); | |
| 2427 return; | |
| 2428 } | |
| 2429 | |
| 2430 Dl_info dlinfo; | |
| 2431 int ret = dladdr(CAST_FROM_FN_PTR(void *, os::jvm_path), &dlinfo); | |
| 2432 assert(ret != 0, "cannot locate libjvm"); | |
|
11092
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
2433 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
|
2434 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
|
2435 } else { |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
2436 buf[0] = '\0'; |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
2437 return; |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
2438 } |
| 0 | 2439 |
|
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2191
diff
changeset
|
2440 if (Arguments::created_by_gamma_launcher()) { |
| 0 | 2441 // Support for the gamma launcher. Typical value for buf is |
| 2442 // "<JAVA_HOME>/jre/lib/<arch>/<vmtype>/libjvm.so". If "/jre/lib/" appears at | |
| 2443 // the right place in the string, then assume we are installed in a JDK and | |
| 2444 // we're done. Otherwise, check for a JAVA_HOME environment variable and fix | |
| 2445 // up the path so it looks like libjvm.so is installed there (append a | |
| 2446 // fake suffix hotspot/libjvm.so). | |
| 2447 const char *p = buf + strlen(buf) - 1; | |
| 2448 for (int count = 0; p > buf && count < 5; ++count) { | |
| 2449 for (--p; p > buf && *p != '/'; --p) | |
| 2450 /* empty */ ; | |
| 2451 } | |
| 2452 | |
| 2453 if (strncmp(p, "/jre/lib/", 9) != 0) { | |
| 2454 // Look for JAVA_HOME in the environment. | |
| 2455 char* java_home_var = ::getenv("JAVA_HOME"); | |
| 2456 if (java_home_var != NULL && java_home_var[0] != 0) { | |
| 2457 char cpu_arch[12]; | |
| 1642 | 2458 char* jrelib_p; |
| 2459 int len; | |
| 0 | 2460 sysinfo(SI_ARCHITECTURE, cpu_arch, sizeof(cpu_arch)); |
| 2461 #ifdef _LP64 | |
| 2462 // If we are on sparc running a 64-bit vm, look in jre/lib/sparcv9. | |
| 2463 if (strcmp(cpu_arch, "sparc") == 0) { | |
| 2464 strcat(cpu_arch, "v9"); | |
| 2465 } else if (strcmp(cpu_arch, "i386") == 0) { | |
| 2466 strcpy(cpu_arch, "amd64"); | |
| 2467 } | |
| 2468 #endif | |
|
7456
7d42f3b08300
8005044: remove crufty '_g' support from HS runtime code
dcubed
parents:
7206
diff
changeset
|
2469 // Check the current module name "libjvm.so". |
| 0 | 2470 p = strrchr(buf, '/'); |
| 2471 assert(strstr(p, "/libjvm") == p, "invalid library name"); | |
| 2472 | |
| 2473 realpath(java_home_var, buf); | |
| 1642 | 2474 // determine if this is a legacy image or modules image |
| 2475 // modules image doesn't have "jre" subdirectory | |
| 2476 len = strlen(buf); | |
| 2477 jrelib_p = buf + len; | |
| 2478 snprintf(jrelib_p, buflen-len, "/jre/lib/%s", cpu_arch); | |
| 2479 if (0 != access(buf, F_OK)) { | |
| 2480 snprintf(jrelib_p, buflen-len, "/lib/%s", cpu_arch); | |
| 2481 } | |
| 2482 | |
| 0 | 2483 if (0 == access(buf, F_OK)) { |
|
7456
7d42f3b08300
8005044: remove crufty '_g' support from HS runtime code
dcubed
parents:
7206
diff
changeset
|
2484 // Use current module name "libjvm.so" |
| 1642 | 2485 len = strlen(buf); |
|
7456
7d42f3b08300
8005044: remove crufty '_g' support from HS runtime code
dcubed
parents:
7206
diff
changeset
|
2486 snprintf(buf + len, buflen-len, "/hotspot/libjvm.so"); |
| 0 | 2487 } else { |
| 2488 // Go back to path of .so | |
| 2489 realpath((char *)dlinfo.dli_fname, buf); | |
| 2490 } | |
| 2491 } | |
| 2492 } | |
| 2493 } | |
| 2494 | |
| 2495 strcpy(saved_jvm_path, buf); | |
| 2496 } | |
| 2497 | |
| 2498 | |
| 2499 void os::print_jni_name_prefix_on(outputStream* st, int args_size) { | |
| 2500 // no prefix required, not even "_" | |
| 2501 } | |
| 2502 | |
| 2503 | |
| 2504 void os::print_jni_name_suffix_on(outputStream* st, int args_size) { | |
| 2505 // no suffix required | |
| 2506 } | |
| 2507 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2508 // 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
|
2509 // from src/solaris/hpi/src/system_md.c |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2510 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2511 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
|
2512 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2513 if (errno == 0) return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2514 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2515 const char *s = ::strerror(errno); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2516 size_t n = ::strlen(s); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2517 if (n >= len) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2518 n = len - 1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2519 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2520 ::strncpy(buf, s, n); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2521 buf[n] = '\0'; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2522 return n; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2523 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2524 |
| 0 | 2525 |
| 2526 // sun.misc.Signal | |
| 2527 | |
| 2528 extern "C" { | |
| 2529 static void UserHandler(int sig, void *siginfo, void *context) { | |
| 2530 // Ctrl-C is pressed during error reporting, likely because the error | |
| 2531 // handler fails to abort. Let VM die immediately. | |
| 2532 if (sig == SIGINT && is_error_reported()) { | |
| 2533 os::die(); | |
| 2534 } | |
| 2535 | |
| 2536 os::signal_notify(sig); | |
| 2537 // We do not need to reinstate the signal handler each time... | |
| 2538 } | |
| 2539 } | |
| 2540 | |
| 2541 void* os::user_handler() { | |
| 2542 return CAST_FROM_FN_PTR(void*, UserHandler); | |
| 2543 } | |
| 2544 | |
| 10405 | 2545 class Semaphore : public StackObj { |
| 2546 public: | |
| 2547 Semaphore(); | |
| 2548 ~Semaphore(); | |
| 2549 void signal(); | |
| 2550 void wait(); | |
| 2551 bool trywait(); | |
| 2552 bool timedwait(unsigned int sec, int nsec); | |
| 2553 private: | |
| 2554 sema_t _semaphore; | |
| 2555 }; | |
| 2556 | |
| 2557 | |
| 2558 Semaphore::Semaphore() { | |
| 2559 sema_init(&_semaphore, 0, NULL, NULL); | |
| 2560 } | |
| 2561 | |
| 2562 Semaphore::~Semaphore() { | |
| 2563 sema_destroy(&_semaphore); | |
| 2564 } | |
| 2565 | |
| 2566 void Semaphore::signal() { | |
| 2567 sema_post(&_semaphore); | |
| 2568 } | |
| 2569 | |
| 2570 void Semaphore::wait() { | |
| 2571 sema_wait(&_semaphore); | |
| 2572 } | |
| 2573 | |
| 2574 bool Semaphore::trywait() { | |
| 2575 return sema_trywait(&_semaphore) == 0; | |
| 2576 } | |
| 2577 | |
| 2578 bool Semaphore::timedwait(unsigned int sec, int nsec) { | |
| 2579 struct timespec ts; | |
| 2580 unpackTime(&ts, false, (sec * NANOSECS_PER_SEC) + nsec); | |
| 2581 | |
| 2582 while (1) { | |
| 2583 int result = sema_timedwait(&_semaphore, &ts); | |
| 2584 if (result == 0) { | |
| 2585 return true; | |
| 2586 } else if (errno == EINTR) { | |
| 2587 continue; | |
| 2588 } else if (errno == ETIME) { | |
| 2589 return false; | |
| 2590 } else { | |
| 2591 return false; | |
| 2592 } | |
| 2593 } | |
| 2594 } | |
| 2595 | |
| 0 | 2596 extern "C" { |
| 2597 typedef void (*sa_handler_t)(int); | |
| 2598 typedef void (*sa_sigaction_t)(int, siginfo_t *, void *); | |
| 2599 } | |
| 2600 | |
| 2601 void* os::signal(int signal_number, void* handler) { | |
| 2602 struct sigaction sigAct, oldSigAct; | |
| 2603 sigfillset(&(sigAct.sa_mask)); | |
| 2604 sigAct.sa_flags = SA_RESTART & ~SA_RESETHAND; | |
| 2605 sigAct.sa_handler = CAST_TO_FN_PTR(sa_handler_t, handler); | |
| 2606 | |
| 2607 if (sigaction(signal_number, &sigAct, &oldSigAct)) | |
| 2608 // -1 means registration failed | |
| 2609 return (void *)-1; | |
| 2610 | |
| 2611 return CAST_FROM_FN_PTR(void*, oldSigAct.sa_handler); | |
| 2612 } | |
| 2613 | |
| 2614 void os::signal_raise(int signal_number) { | |
| 2615 raise(signal_number); | |
| 2616 } | |
| 2617 | |
| 2618 /* | |
| 2619 * The following code is moved from os.cpp for making this | |
| 2620 * code platform specific, which it is by its very nature. | |
| 2621 */ | |
| 2622 | |
| 2623 // a counter for each possible signal value | |
| 2624 static int Sigexit = 0; | |
| 2625 static int Maxlibjsigsigs; | |
| 2626 static jint *pending_signals = NULL; | |
| 2627 static int *preinstalled_sigs = NULL; | |
| 2628 static struct sigaction *chainedsigactions = NULL; | |
| 2629 static sema_t sig_sem; | |
| 2630 typedef int (*version_getting_t)(); | |
| 2631 version_getting_t os::Solaris::get_libjsig_version = NULL; | |
| 2632 static int libjsigversion = NULL; | |
| 2633 | |
| 2634 int os::sigexitnum_pd() { | |
| 2635 assert(Sigexit > 0, "signal memory not yet initialized"); | |
| 2636 return Sigexit; | |
| 2637 } | |
| 2638 | |
| 2639 void os::Solaris::init_signal_mem() { | |
| 2640 // Initialize signal structures | |
| 2641 Maxsignum = SIGRTMAX; | |
| 2642 Sigexit = Maxsignum+1; | |
| 2643 assert(Maxsignum >0, "Unable to obtain max signal number"); | |
| 2644 | |
| 2645 Maxlibjsigsigs = Maxsignum; | |
| 2646 | |
| 2647 // pending_signals has one int per signal | |
| 2648 // The additional signal is for SIGEXIT - exit signal to signal_thread | |
| 6197 | 2649 pending_signals = (jint *)os::malloc(sizeof(jint) * (Sigexit+1), mtInternal); |
| 0 | 2650 memset(pending_signals, 0, (sizeof(jint) * (Sigexit+1))); |
| 2651 | |
| 2652 if (UseSignalChaining) { | |
| 2653 chainedsigactions = (struct sigaction *)malloc(sizeof(struct sigaction) | |
| 6197 | 2654 * (Maxsignum + 1), mtInternal); |
| 0 | 2655 memset(chainedsigactions, 0, (sizeof(struct sigaction) * (Maxsignum + 1))); |
| 6197 | 2656 preinstalled_sigs = (int *)os::malloc(sizeof(int) * (Maxsignum + 1), mtInternal); |
| 0 | 2657 memset(preinstalled_sigs, 0, (sizeof(int) * (Maxsignum + 1))); |
| 2658 } | |
| 6197 | 2659 ourSigFlags = (int*)malloc(sizeof(int) * (Maxsignum + 1 ), mtInternal); |
| 0 | 2660 memset(ourSigFlags, 0, sizeof(int) * (Maxsignum + 1)); |
| 2661 } | |
| 2662 | |
| 2663 void os::signal_init_pd() { | |
| 2664 int ret; | |
| 2665 | |
| 2666 ret = ::sema_init(&sig_sem, 0, NULL, NULL); | |
| 2667 assert(ret == 0, "sema_init() failed"); | |
| 2668 } | |
| 2669 | |
| 2670 void os::signal_notify(int signal_number) { | |
| 2671 int ret; | |
| 2672 | |
| 2673 Atomic::inc(&pending_signals[signal_number]); | |
| 2674 ret = ::sema_post(&sig_sem); | |
| 2675 assert(ret == 0, "sema_post() failed"); | |
| 2676 } | |
| 2677 | |
| 2678 static int check_pending_signals(bool wait_for_signal) { | |
| 2679 int ret; | |
| 2680 while (true) { | |
| 2681 for (int i = 0; i < Sigexit + 1; i++) { | |
| 2682 jint n = pending_signals[i]; | |
| 2683 if (n > 0 && n == Atomic::cmpxchg(n - 1, &pending_signals[i], n)) { | |
| 2684 return i; | |
| 2685 } | |
| 2686 } | |
| 2687 if (!wait_for_signal) { | |
| 2688 return -1; | |
| 2689 } | |
| 2690 JavaThread *thread = JavaThread::current(); | |
| 2691 ThreadBlockInVM tbivm(thread); | |
| 2692 | |
| 2693 bool threadIsSuspended; | |
| 2694 do { | |
| 2695 thread->set_suspend_equivalent(); | |
| 2696 // cleared by handle_special_suspend_equivalent_condition() or java_suspend_self() | |
| 2697 while((ret = ::sema_wait(&sig_sem)) == EINTR) | |
| 2698 ; | |
| 2699 assert(ret == 0, "sema_wait() failed"); | |
| 2700 | |
| 2701 // were we externally suspended while we were waiting? | |
| 2702 threadIsSuspended = thread->handle_special_suspend_equivalent_condition(); | |
| 2703 if (threadIsSuspended) { | |
| 2704 // | |
| 2705 // The semaphore has been incremented, but while we were waiting | |
| 2706 // another thread suspended us. We don't want to continue running | |
| 2707 // while suspended because that would surprise the thread that | |
| 2708 // suspended us. | |
| 2709 // | |
| 2710 ret = ::sema_post(&sig_sem); | |
| 2711 assert(ret == 0, "sema_post() failed"); | |
| 2712 | |
| 2713 thread->java_suspend_self(); | |
| 2714 } | |
| 2715 } while (threadIsSuspended); | |
| 2716 } | |
| 2717 } | |
| 2718 | |
| 2719 int os::signal_lookup() { | |
| 2720 return check_pending_signals(false); | |
| 2721 } | |
| 2722 | |
| 2723 int os::signal_wait() { | |
| 2724 return check_pending_signals(true); | |
| 2725 } | |
| 2726 | |
| 2727 //////////////////////////////////////////////////////////////////////////////// | |
| 2728 // Virtual Memory | |
| 2729 | |
| 2730 static int page_size = -1; | |
| 2731 | |
| 2732 // The mmap MAP_ALIGN flag is supported on Solaris 9 and later. init_2() will | |
| 2733 // clear this var if support is not available. | |
| 2734 static bool has_map_align = true; | |
| 2735 | |
| 2736 int os::vm_page_size() { | |
| 2737 assert(page_size != -1, "must call os::init"); | |
| 2738 return page_size; | |
| 2739 } | |
| 2740 | |
| 2741 // Solaris allocates memory by pages. | |
| 2742 int os::vm_allocation_granularity() { | |
| 2743 assert(page_size != -1, "must call os::init"); | |
| 2744 return page_size; | |
| 2745 } | |
| 2746 | |
|
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2747 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
|
2748 // 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
|
2749 // 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
|
2750 switch (err) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2751 case EBADF: |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2752 case EINVAL: |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2753 case ENOTSUP: |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2754 // 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
|
2755 return true; |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2756 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2757 default: |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2758 // 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
|
2759 // 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
|
2760 // 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
|
2761 // 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:
10405
diff
changeset
|
2762 // same memory mapped. |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2763 return false; |
|
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 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2766 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2767 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:
10405
diff
changeset
|
2768 int err) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2769 warning("INFO: os::commit_memory(" PTR_FORMAT ", " SIZE_FORMAT |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2770 ", %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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changeset
|
2771 strerror(err), err); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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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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diff
changeset
|
2773 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
2774 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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diff
changeset
|
2775 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
|
2776 int err) { |
|
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
|
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 ", " SIZE_FORMAT ", %d) failed; error='%s' (errno=%d)", addr, bytes, |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
2779 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
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|
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
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diff
changeset
|
2782 int os::Solaris::commit_memory_impl(char* addr, size_t bytes, bool exec) { |
| 656 | 2783 int prot = exec ? PROT_READ|PROT_WRITE|PROT_EXEC : PROT_READ|PROT_WRITE; |
| 0 | 2784 size_t size = bytes; |
| 3885 | 2785 char *res = Solaris::mmap_chunk(addr, size, MAP_PRIVATE|MAP_FIXED, prot); |
| 2786 if (res != NULL) { | |
| 2787 if (UseNUMAInterleaving) { | |
| 2788 numa_make_global(addr, bytes); | |
| 2789 } | |
|
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
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|
2790 return 0; |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
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|
2791 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
2792 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
2793 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
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changeset
|
2794 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
2795 if (!recoverable_mmap_error(err)) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
2796 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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diff
changeset
|
2797 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
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|
2798 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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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 return err; |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
2801 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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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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10405
diff
changeset
|
2803 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
|
2804 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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diff
changeset
|
2805 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
2806 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
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diff
changeset
|
2807 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
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diff
changeset
|
2808 const char* mesg) { |
|
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
|
2809 assert(mesg != NULL, "mesg must be specified"); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
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diff
changeset
|
2810 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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diff
changeset
|
2811 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
|
2812 // 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:
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diff
changeset
|
2813 warn_fail_commit_memory(addr, bytes, exec, err); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
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diff
changeset
|
2814 vm_exit_out_of_memory(bytes, OOM_MMAP_ERROR, mesg); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
2815 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
2816 } |
|
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
|
2817 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2818 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
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parents:
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diff
changeset
|
2819 size_t alignment_hint, bool exec) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
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diff
changeset
|
2820 int err = Solaris::commit_memory_impl(addr, bytes, exec); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
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diff
changeset
|
2821 if (err == 0) { |
|
11111
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
2822 if (UseLargePages && (alignment_hint > (size_t)vm_page_size())) { |
| 0 | 2823 // If the large page size has been set and the VM |
| 2824 // is using large pages, use the large page size | |
| 2825 // if it is smaller than the alignment hint. This is | |
| 2826 // a case where the VM wants to use a larger alignment size | |
| 2827 // for its own reasons but still want to use large pages | |
| 2828 // (which is what matters to setting the mpss range. | |
| 2829 size_t page_size = 0; | |
| 2830 if (large_page_size() < alignment_hint) { | |
| 2831 assert(UseLargePages, "Expected to be here for large page use only"); | |
| 2832 page_size = large_page_size(); | |
| 2833 } else { | |
| 2834 // If the alignment hint is less than the large page | |
| 2835 // size, the VM wants a particular alignment (thus the hint) | |
| 2836 // for internal reasons. Try to set the mpss range using | |
| 2837 // the alignment_hint. | |
| 2838 page_size = alignment_hint; | |
| 2839 } | |
| 2840 // 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
|
2841 (void)Solaris::setup_large_pages(addr, bytes, page_size); |
| 0 | 2842 } |
|
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
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10405
diff
changeset
|
2843 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
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diff
changeset
|
2844 return err; |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2845 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
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10405
diff
changeset
|
2846 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2847 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
|
2848 bool exec) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2849 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
|
2850 } |
|
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 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
|
2853 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
|
2854 const char* mesg) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2855 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
|
2856 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
|
2857 if (err != 0) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2858 // 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
|
2859 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
|
2860 vm_exit_out_of_memory(bytes, OOM_MMAP_ERROR, mesg); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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parents:
10405
diff
changeset
|
2861 } |
| 0 | 2862 } |
| 2863 | |
| 2864 // Uncommit the pages in a specified region. | |
| 6197 | 2865 void os::pd_free_memory(char* addr, size_t bytes, size_t alignment_hint) { |
| 0 | 2866 if (madvise(addr, bytes, MADV_FREE) < 0) { |
| 2867 debug_only(warning("MADV_FREE failed.")); | |
| 2868 return; | |
| 2869 } | |
| 2870 } | |
| 2871 | |
| 6197 | 2872 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
|
2873 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
|
2874 } |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1123
diff
changeset
|
2875 |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1123
diff
changeset
|
2876 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
|
2877 return os::uncommit_memory(addr, size); |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1123
diff
changeset
|
2878 } |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1123
diff
changeset
|
2879 |
| 0 | 2880 // Change the page size in a given range. |
| 6197 | 2881 void os::pd_realign_memory(char *addr, size_t bytes, size_t alignment_hint) { |
| 0 | 2882 assert((intptr_t)addr % alignment_hint == 0, "Address should be aligned."); |
| 2883 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
|
2884 if (UseLargePages) { |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
2885 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
|
2886 } |
| 0 | 2887 } |
| 2888 | |
| 2889 // Tell the OS to make the range local to the first-touching LWP | |
| 141 | 2890 void os::numa_make_local(char *addr, size_t bytes, int lgrp_hint) { |
| 0 | 2891 assert((intptr_t)addr % os::vm_page_size() == 0, "Address should be page-aligned."); |
| 2892 if (madvise(addr, bytes, MADV_ACCESS_LWP) < 0) { | |
| 2893 debug_only(warning("MADV_ACCESS_LWP failed.")); | |
| 2894 } | |
| 2895 } | |
| 2896 | |
| 2897 // Tell the OS that this range would be accessed from different LWPs. | |
| 2898 void os::numa_make_global(char *addr, size_t bytes) { | |
| 2899 assert((intptr_t)addr % os::vm_page_size() == 0, "Address should be page-aligned."); | |
| 2900 if (madvise(addr, bytes, MADV_ACCESS_MANY) < 0) { | |
| 2901 debug_only(warning("MADV_ACCESS_MANY failed.")); | |
| 2902 } | |
| 2903 } | |
| 2904 | |
| 2905 // Get the number of the locality groups. | |
| 2906 size_t os::numa_get_groups_num() { | |
| 2907 size_t n = Solaris::lgrp_nlgrps(Solaris::lgrp_cookie()); | |
| 2908 return n != -1 ? n : 1; | |
| 2909 } | |
| 2910 | |
| 2911 // Get a list of leaf locality groups. A leaf lgroup is group that | |
| 2912 // doesn't have any children. Typical leaf group is a CPU or a CPU/memory | |
| 2913 // board. An LWP is assigned to one of these groups upon creation. | |
| 2914 size_t os::numa_get_leaf_groups(int *ids, size_t size) { | |
| 2915 if ((ids[0] = Solaris::lgrp_root(Solaris::lgrp_cookie())) == -1) { | |
| 2916 ids[0] = 0; | |
| 2917 return 1; | |
| 2918 } | |
| 2919 int result_size = 0, top = 1, bottom = 0, cur = 0; | |
| 2920 for (int k = 0; k < size; k++) { | |
| 2921 int r = Solaris::lgrp_children(Solaris::lgrp_cookie(), ids[cur], | |
| 2922 (Solaris::lgrp_id_t*)&ids[top], size - top); | |
| 2923 if (r == -1) { | |
| 2924 ids[0] = 0; | |
| 2925 return 1; | |
| 2926 } | |
| 2927 if (!r) { | |
|
144
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
2928 // That's a leaf node. |
| 0 | 2929 assert (bottom <= cur, "Sanity check"); |
|
144
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
2930 // Check if the node has memory |
|
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
2931 if (Solaris::lgrp_resources(Solaris::lgrp_cookie(), ids[cur], |
|
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
2932 NULL, 0, LGRP_RSRC_MEM) > 0) { |
|
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
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141
diff
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|
2933 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
|
2934 } |
| 0 | 2935 } |
| 2936 top += r; | |
| 2937 cur++; | |
| 2938 } | |
|
268
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iveresov
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267
diff
changeset
|
2939 if (bottom == 0) { |
|
d6340ab4105b
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iveresov
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267
diff
changeset
|
2940 // Handle a situation, when the OS reports no memory available. |
|
d6340ab4105b
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267
diff
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|
2941 // Assume UMA architecture. |
|
d6340ab4105b
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267
diff
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|
2942 ids[0] = 0; |
|
d6340ab4105b
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diff
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|
2943 return 1; |
|
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|
2944 } |
| 0 | 2945 return bottom; |
| 2946 } | |
| 2947 | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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144
diff
changeset
|
2948 // Detect the topology change. Typically happens during CPU plugging-unplugging. |
| 0 | 2949 bool os::numa_topology_changed() { |
| 2950 int is_stale = Solaris::lgrp_cookie_stale(Solaris::lgrp_cookie()); | |
| 2951 if (is_stale != -1 && is_stale) { | |
| 2952 Solaris::lgrp_fini(Solaris::lgrp_cookie()); | |
| 2953 Solaris::lgrp_cookie_t c = Solaris::lgrp_init(Solaris::LGRP_VIEW_CALLER); | |
| 2954 assert(c != 0, "Failure to initialize LGRP API"); | |
| 2955 Solaris::set_lgrp_cookie(c); | |
| 2956 return true; | |
| 2957 } | |
| 2958 return false; | |
| 2959 } | |
| 2960 | |
| 2961 // Get the group id of the current LWP. | |
| 2962 int os::numa_get_group_id() { | |
|
144
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6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
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141
diff
changeset
|
2963 int lgrp_id = Solaris::lgrp_home(P_LWPID, P_MYID); |
| 0 | 2964 if (lgrp_id == -1) { |
| 2965 return 0; | |
| 2966 } | |
|
144
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141
diff
changeset
|
2967 const int size = os::numa_get_groups_num(); |
|
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141
diff
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|
2968 int *ids = (int*)alloca(size * sizeof(int)); |
|
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
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141
diff
changeset
|
2969 |
|
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6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
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diff
changeset
|
2970 // Get the ids of all lgroups with memory; r is the count. |
|
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6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
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141
diff
changeset
|
2971 int r = Solaris::lgrp_resources(Solaris::lgrp_cookie(), lgrp_id, |
|
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6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
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141
diff
changeset
|
2972 (Solaris::lgrp_id_t*)ids, size, LGRP_RSRC_MEM); |
|
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6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
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141
diff
changeset
|
2973 if (r <= 0) { |
|
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
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diff
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|
2974 return 0; |
|
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141
diff
changeset
|
2975 } |
|
e3729351c946
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141
diff
changeset
|
2976 return ids[os::random() % r]; |
| 0 | 2977 } |
| 2978 | |
| 2979 // Request information about the page. | |
| 2980 bool os::get_page_info(char *start, page_info* info) { | |
| 2981 const uint_t info_types[] = { MEMINFO_VLGRP, MEMINFO_VPAGESIZE }; | |
| 2982 uint64_t addr = (uintptr_t)start; | |
| 2983 uint64_t outdata[2]; | |
| 2984 uint_t validity = 0; | |
| 2985 | |
| 2986 if (os::Solaris::meminfo(&addr, 1, info_types, 2, outdata, &validity) < 0) { | |
| 2987 return false; | |
| 2988 } | |
| 2989 | |
| 2990 info->size = 0; | |
| 2991 info->lgrp_id = -1; | |
| 2992 | |
| 2993 if ((validity & 1) != 0) { | |
| 2994 if ((validity & 2) != 0) { | |
| 2995 info->lgrp_id = outdata[0]; | |
| 2996 } | |
| 2997 if ((validity & 4) != 0) { | |
| 2998 info->size = outdata[1]; | |
| 2999 } | |
| 3000 return true; | |
| 3001 } | |
| 3002 return false; | |
| 3003 } | |
| 3004 | |
| 3005 // Scan the pages from start to end until a page different than | |
| 3006 // the one described in the info parameter is encountered. | |
| 3007 char *os::scan_pages(char *start, char* end, page_info* page_expected, page_info* page_found) { | |
| 3008 const uint_t info_types[] = { MEMINFO_VLGRP, MEMINFO_VPAGESIZE }; | |
| 3009 const size_t types = sizeof(info_types) / sizeof(info_types[0]); | |
| 3010 uint64_t addrs[MAX_MEMINFO_CNT], outdata[types * MAX_MEMINFO_CNT]; | |
| 3011 uint_t validity[MAX_MEMINFO_CNT]; | |
| 3012 | |
| 3013 size_t page_size = MAX2((size_t)os::vm_page_size(), page_expected->size); | |
| 3014 uint64_t p = (uint64_t)start; | |
| 3015 while (p < (uint64_t)end) { | |
| 3016 addrs[0] = p; | |
| 3017 size_t addrs_count = 1; | |
|
8739
ca9580859cf4
8004697: SIGSEGV on Solaris sparc with -XX:+UseNUMA
stefank
parents:
8067
diff
changeset
|
3018 while (addrs_count < MAX_MEMINFO_CNT && addrs[addrs_count - 1] + page_size < (uint64_t)end) { |
| 0 | 3019 addrs[addrs_count] = addrs[addrs_count - 1] + page_size; |
| 3020 addrs_count++; | |
| 3021 } | |
| 3022 | |
| 3023 if (os::Solaris::meminfo(addrs, addrs_count, info_types, types, outdata, validity) < 0) { | |
| 3024 return NULL; | |
| 3025 } | |
| 3026 | |
| 3027 size_t i = 0; | |
| 3028 for (; i < addrs_count; i++) { | |
| 3029 if ((validity[i] & 1) != 0) { | |
| 3030 if ((validity[i] & 4) != 0) { | |
| 3031 if (outdata[types * i + 1] != page_expected->size) { | |
| 3032 break; | |
| 3033 } | |
| 3034 } else | |
| 3035 if (page_expected->size != 0) { | |
| 3036 break; | |
| 3037 } | |
| 3038 | |
| 3039 if ((validity[i] & 2) != 0 && page_expected->lgrp_id > 0) { | |
| 3040 if (outdata[types * i] != page_expected->lgrp_id) { | |
| 3041 break; | |
| 3042 } | |
| 3043 } | |
| 3044 } else { | |
| 3045 return NULL; | |
| 3046 } | |
| 3047 } | |
| 3048 | |
| 3049 if (i != addrs_count) { | |
| 3050 if ((validity[i] & 2) != 0) { | |
| 3051 page_found->lgrp_id = outdata[types * i]; | |
| 3052 } else { | |
| 3053 page_found->lgrp_id = -1; | |
| 3054 } | |
| 3055 if ((validity[i] & 4) != 0) { | |
| 3056 page_found->size = outdata[types * i + 1]; | |
| 3057 } else { | |
| 3058 page_found->size = 0; | |
| 3059 } | |
| 3060 return (char*)addrs[i]; | |
| 3061 } | |
| 3062 | |
| 3063 p = addrs[addrs_count - 1] + page_size; | |
| 3064 } | |
| 3065 return end; | |
| 3066 } | |
| 3067 | |
| 6197 | 3068 bool os::pd_uncommit_memory(char* addr, size_t bytes) { |
| 0 | 3069 size_t size = bytes; |
| 3070 // Map uncommitted pages PROT_NONE so we fail early if we touch an | |
| 3071 // uncommitted page. Otherwise, the read/write might succeed if we | |
| 3072 // have enough swap space to back the physical page. | |
| 3073 return | |
| 3074 NULL != Solaris::mmap_chunk(addr, size, | |
| 3075 MAP_PRIVATE|MAP_FIXED|MAP_NORESERVE, | |
| 3076 PROT_NONE); | |
| 3077 } | |
| 3078 | |
| 3079 char* os::Solaris::mmap_chunk(char *addr, size_t size, int flags, int prot) { | |
| 3080 char *b = (char *)mmap(addr, size, prot, flags, os::Solaris::_dev_zero_fd, 0); | |
| 3081 | |
| 3082 if (b == MAP_FAILED) { | |
| 3083 return NULL; | |
| 3084 } | |
| 3085 return b; | |
| 3086 } | |
| 3087 | |
|
60
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3088 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
|
3089 char* addr = requested_addr; |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3090 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
|
3091 |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3092 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
|
3093 |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3094 if (fixed) { |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3095 flags |= MAP_FIXED; |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3096 } else if (has_map_align && (alignment_hint > (size_t) vm_page_size())) { |
| 0 | 3097 flags |= MAP_ALIGN; |
| 3098 addr = (char*) alignment_hint; | |
| 3099 } | |
| 3100 | |
| 3101 // Map uncommitted pages PROT_NONE so we fail early if we touch an | |
| 3102 // uncommitted page. Otherwise, the read/write might succeed if we | |
| 3103 // 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
|
3104 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
|
3105 } |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3106 |
| 6197 | 3107 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
|
3108 char* addr = Solaris::anon_mmap(requested_addr, bytes, alignment_hint, (requested_addr != NULL)); |
| 0 | 3109 |
| 3110 guarantee(requested_addr == NULL || requested_addr == addr, | |
| 3111 "OS failed to return requested mmap address."); | |
| 3112 return addr; | |
| 3113 } | |
| 3114 | |
| 3115 // Reserve memory at an arbitrary address, only if that area is | |
| 3116 // available (and not reserved for something else). | |
| 3117 | |
| 6197 | 3118 char* os::pd_attempt_reserve_memory_at(size_t bytes, char* requested_addr) { |
| 0 | 3119 const int max_tries = 10; |
| 3120 char* base[max_tries]; | |
| 3121 size_t size[max_tries]; | |
| 3122 | |
| 3123 // Solaris adds a gap between mmap'ed regions. The size of the gap | |
| 3124 // is dependent on the requested size and the MMU. Our initial gap | |
| 3125 // value here is just a guess and will be corrected later. | |
| 3126 bool had_top_overlap = false; | |
| 3127 bool have_adjusted_gap = false; | |
| 3128 size_t gap = 0x400000; | |
| 3129 | |
| 3130 // Assert only that the size is a multiple of the page size, since | |
| 3131 // that's all that mmap requires, and since that's all we really know | |
| 3132 // about at this low abstraction level. If we need higher alignment, | |
| 3133 // we can either pass an alignment to this method or verify alignment | |
| 3134 // in one of the methods further up the call chain. See bug 5044738. | |
| 3135 assert(bytes % os::vm_page_size() == 0, "reserving unexpected size block"); | |
| 3136 | |
|
60
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3137 // 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
|
3138 // 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
|
3139 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
|
3140 |
|
60
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3141 volatile int err = errno; |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3142 if (addr == requested_addr) { |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3143 return addr; |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3144 } else if (addr != NULL) { |
|
6882
716c64bda5ba
7199092: NMT: NMT needs to deal overlapped virtual memory ranges
zgu
parents:
6854
diff
changeset
|
3145 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
|
3146 } |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3147 |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3148 if (PrintMiscellaneous && Verbose) { |
|
8d84e28e68ba
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sbohne
parents:
0
diff
changeset
|
3149 char buf[256]; |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
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0
diff
changeset
|
3150 buf[0] = '\0'; |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
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0
diff
changeset
|
3151 if (addr == NULL) { |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
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0
diff
changeset
|
3152 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
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|
3153 } |
| 2080 | 3154 warning("attempt_reserve_memory_at: couldn't reserve " SIZE_FORMAT " bytes at " |
|
60
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sbohne
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0
diff
changeset
|
3155 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
|
3156 "%s", bytes, requested_addr, addr, buf); |
|
8d84e28e68ba
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sbohne
parents:
0
diff
changeset
|
3157 } |
|
8d84e28e68ba
6204603: Modify hotspot to use new Solaris mmap semantics for class data archive file
sbohne
parents:
0
diff
changeset
|
3158 |
|
8d84e28e68ba
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sbohne
parents:
0
diff
changeset
|
3159 // Address hint method didn't work. Fall back to the old method. |
|
8d84e28e68ba
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sbohne
parents:
0
diff
changeset
|
3160 // 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
|
3161 // code will no longer be needed. |
|
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sbohne
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0
diff
changeset
|
3162 // |
| 0 | 3163 // Repeatedly allocate blocks until the block is allocated at the |
| 3164 // right spot. Give up after max_tries. | |
| 3165 int i; | |
| 3166 for (i = 0; i < max_tries; ++i) { | |
| 3167 base[i] = reserve_memory(bytes); | |
| 3168 | |
| 3169 if (base[i] != NULL) { | |
| 3170 // Is this the block we wanted? | |
| 3171 if (base[i] == requested_addr) { | |
| 3172 size[i] = bytes; | |
| 3173 break; | |
| 3174 } | |
| 3175 | |
| 3176 // check that the gap value is right | |
| 3177 if (had_top_overlap && !have_adjusted_gap) { | |
| 3178 size_t actual_gap = base[i-1] - base[i] - bytes; | |
| 3179 if (gap != actual_gap) { | |
| 3180 // adjust the gap value and retry the last 2 allocations | |
| 3181 assert(i > 0, "gap adjustment code problem"); | |
| 3182 have_adjusted_gap = true; // adjust the gap only once, just in case | |
| 3183 gap = actual_gap; | |
| 3184 if (PrintMiscellaneous && Verbose) { | |
| 3185 warning("attempt_reserve_memory_at: adjusted gap to 0x%lx", gap); | |
| 3186 } | |
| 3187 unmap_memory(base[i], bytes); | |
| 3188 unmap_memory(base[i-1], size[i-1]); | |
| 3189 i-=2; | |
| 3190 continue; | |
| 3191 } | |
| 3192 } | |
| 3193 | |
| 3194 // Does this overlap the block we wanted? Give back the overlapped | |
| 3195 // parts and try again. | |
| 3196 // | |
| 3197 // There is still a bug in this code: if top_overlap == bytes, | |
| 3198 // the overlap is offset from requested region by the value of gap. | |
| 3199 // In this case giving back the overlapped part will not work, | |
| 3200 // because we'll give back the entire block at base[i] and | |
| 3201 // therefore the subsequent allocation will not generate a new gap. | |
| 3202 // This could be fixed with a new algorithm that used larger | |
| 3203 // or variable size chunks to find the requested region - | |
| 3204 // but such a change would introduce additional complications. | |
| 3205 // It's rare enough that the planets align for this bug, | |
| 3206 // so we'll just wait for a fix for 6204603/5003415 which | |
| 3207 // will provide a mmap flag to allow us to avoid this business. | |
| 3208 | |
| 3209 size_t top_overlap = requested_addr + (bytes + gap) - base[i]; | |
| 3210 if (top_overlap >= 0 && top_overlap < bytes) { | |
| 3211 had_top_overlap = true; | |
| 3212 unmap_memory(base[i], top_overlap); | |
| 3213 base[i] += top_overlap; | |
| 3214 size[i] = bytes - top_overlap; | |
| 3215 } else { | |
| 3216 size_t bottom_overlap = base[i] + bytes - requested_addr; | |
| 3217 if (bottom_overlap >= 0 && bottom_overlap < bytes) { | |
| 3218 if (PrintMiscellaneous && Verbose && bottom_overlap == 0) { | |
| 3219 warning("attempt_reserve_memory_at: possible alignment bug"); | |
| 3220 } | |
| 3221 unmap_memory(requested_addr, bottom_overlap); | |
| 3222 size[i] = bytes - bottom_overlap; | |
| 3223 } else { | |
| 3224 size[i] = bytes; | |
| 3225 } | |
| 3226 } | |
| 3227 } | |
| 3228 } | |
| 3229 | |
| 3230 // Give back the unused reserved pieces. | |
| 3231 | |
| 3232 for (int j = 0; j < i; ++j) { | |
| 3233 if (base[j] != NULL) { | |
| 3234 unmap_memory(base[j], size[j]); | |
| 3235 } | |
| 3236 } | |
| 3237 | |
| 3238 return (i < max_tries) ? requested_addr : NULL; | |
| 3239 } | |
| 3240 | |
| 6197 | 3241 bool os::pd_release_memory(char* addr, size_t bytes) { |
| 0 | 3242 size_t size = bytes; |
| 3243 return munmap(addr, size) == 0; | |
| 3244 } | |
| 3245 | |
| 3246 static bool solaris_mprotect(char* addr, size_t bytes, int prot) { | |
| 3247 assert(addr == (char*)align_size_down((uintptr_t)addr, os::vm_page_size()), | |
| 3248 "addr must be page aligned"); | |
| 3249 int retVal = mprotect(addr, bytes, prot); | |
| 3250 return retVal == 0; | |
| 3251 } | |
| 3252 | |
|
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|
3253 // Protect memory (Used to pass readonly pages through |
| 0 | 3254 // JNI GetArray<type>Elements with empty arrays.) |
|
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|
3255 // Also, used for serialization page and for compressed oops null pointer |
|
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|
3256 // checking. |
|
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3257 bool os::protect_memory(char* addr, size_t bytes, ProtType prot, |
|
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|
3258 bool is_committed) { |
|
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|
3259 unsigned int p = 0; |
|
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|
3260 switch (prot) { |
|
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|
3261 case MEM_PROT_NONE: p = PROT_NONE; break; |
|
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|
3262 case MEM_PROT_READ: p = PROT_READ; break; |
|
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3263 case MEM_PROT_RW: p = PROT_READ|PROT_WRITE; break; |
|
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|
3264 case MEM_PROT_RWX: p = PROT_READ|PROT_WRITE|PROT_EXEC; break; |
|
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|
3265 default: |
|
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|
3266 ShouldNotReachHere(); |
|
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|
3267 } |
|
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|
3268 // is_committed is unused. |
|
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|
3269 return solaris_mprotect(addr, bytes, p); |
| 0 | 3270 } |
| 3271 | |
| 3272 // guard_memory and unguard_memory only happens within stack guard pages. | |
| 3273 // Since ISM pertains only to the heap, guard and unguard memory should not | |
| 3274 /// happen with an ISM region. | |
| 3275 bool os::guard_memory(char* addr, size_t bytes) { | |
| 3276 return solaris_mprotect(addr, bytes, PROT_NONE); | |
| 3277 } | |
| 3278 | |
| 3279 bool os::unguard_memory(char* addr, size_t bytes) { | |
|
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|
3280 return solaris_mprotect(addr, bytes, PROT_READ|PROT_WRITE); |
| 0 | 3281 } |
| 3282 | |
| 3283 // Large page support | |
| 3284 static size_t _large_page_size = 0; | |
| 3285 | |
| 3286 // Insertion sort for small arrays (descending order). | |
| 3287 static void insertion_sort_descending(size_t* array, int len) { | |
| 3288 for (int i = 0; i < len; i++) { | |
| 3289 size_t val = array[i]; | |
| 3290 for (size_t key = i; key > 0 && array[key - 1] < val; --key) { | |
| 3291 size_t tmp = array[key]; | |
| 3292 array[key] = array[key - 1]; | |
| 3293 array[key - 1] = tmp; | |
| 3294 } | |
| 3295 } | |
| 3296 } | |
| 3297 | |
|
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|
3298 bool os::Solaris::mpss_sanity_check(bool warn, size_t* page_size) { |
| 0 | 3299 const unsigned int usable_count = VM_Version::page_size_count(); |
| 3300 if (usable_count == 1) { | |
| 3301 return false; | |
| 3302 } | |
| 3303 | |
| 3859 | 3304 // Find the right getpagesizes interface. When solaris 11 is the minimum |
| 3305 // build platform, getpagesizes() (without the '2') can be called directly. | |
| 3306 typedef int (*gps_t)(size_t[], int); | |
| 3307 gps_t gps_func = CAST_TO_FN_PTR(gps_t, dlsym(RTLD_DEFAULT, "getpagesizes2")); | |
| 3308 if (gps_func == NULL) { | |
| 3309 gps_func = CAST_TO_FN_PTR(gps_t, dlsym(RTLD_DEFAULT, "getpagesizes")); | |
| 3310 if (gps_func == NULL) { | |
| 3311 if (warn) { | |
| 3312 warning("MPSS is not supported by the operating system."); | |
| 3313 } | |
| 3314 return false; | |
| 3315 } | |
| 3316 } | |
| 3317 | |
| 0 | 3318 // Fill the array of page sizes. |
| 3859 | 3319 int n = (*gps_func)(_page_sizes, page_sizes_max); |
| 0 | 3320 assert(n > 0, "Solaris bug?"); |
| 3859 | 3321 |
| 0 | 3322 if (n == page_sizes_max) { |
| 3323 // Add a sentinel value (necessary only if the array was completely filled | |
| 3324 // since it is static (zeroed at initialization)). | |
| 3325 _page_sizes[--n] = 0; | |
| 3326 DEBUG_ONLY(warning("increase the size of the os::_page_sizes array.");) | |
| 3327 } | |
| 3328 assert(_page_sizes[n] == 0, "missing sentinel"); | |
| 3859 | 3329 trace_page_sizes("available page sizes", _page_sizes, n); |
| 0 | 3330 |
| 3331 if (n == 1) return false; // Only one page size available. | |
| 3332 | |
| 3333 // Skip sizes larger than 4M (or LargePageSizeInBytes if it was set) and | |
| 3334 // select up to usable_count elements. First sort the array, find the first | |
| 3335 // acceptable value, then copy the usable sizes to the top of the array and | |
| 3336 // trim the rest. Make sure to include the default page size :-). | |
| 3337 // | |
| 3338 // A better policy could get rid of the 4M limit by taking the sizes of the | |
| 3339 // important VM memory regions (java heap and possibly the code cache) into | |
| 3340 // account. | |
| 3341 insertion_sort_descending(_page_sizes, n); | |
| 3342 const size_t size_limit = | |
| 3343 FLAG_IS_DEFAULT(LargePageSizeInBytes) ? 4 * M : LargePageSizeInBytes; | |
| 3344 int beg; | |
| 3345 for (beg = 0; beg < n && _page_sizes[beg] > size_limit; ++beg) /* empty */ ; | |
| 3346 const int end = MIN2((int)usable_count, n) - 1; | |
| 3347 for (int cur = 0; cur < end; ++cur, ++beg) { | |
| 3348 _page_sizes[cur] = _page_sizes[beg]; | |
| 3349 } | |
| 3350 _page_sizes[end] = vm_page_size(); | |
| 3351 _page_sizes[end + 1] = 0; | |
| 3352 | |
| 3353 if (_page_sizes[end] > _page_sizes[end - 1]) { | |
| 3354 // Default page size is not the smallest; sort again. | |
| 3355 insertion_sort_descending(_page_sizes, end + 1); | |
| 3356 } | |
| 3357 *page_size = _page_sizes[0]; | |
| 3358 | |
| 3859 | 3359 trace_page_sizes("usable page sizes", _page_sizes, end + 1); |
| 0 | 3360 return true; |
| 3361 } | |
| 3362 | |
|
3318
188c9a5d6a6d
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3292
diff
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|
3363 void os::large_page_init() { |
|
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|
3364 if (UseLargePages) { |
|
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8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
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|
3365 // print a warning if any large page related flag is specified on command line |
|
dec841e0c9aa
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|
3366 bool warn_on_failure = !FLAG_IS_DEFAULT(UseLargePages) || |
|
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8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
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diff
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|
3367 !FLAG_IS_DEFAULT(LargePageSizeInBytes); |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
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|
3368 |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
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diff
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|
3369 UseLargePages = Solaris::mpss_sanity_check(warn_on_failure, &_large_page_size); |
|
dec841e0c9aa
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|
3370 } |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
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diff
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|
3371 } |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
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diff
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|
3372 |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
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diff
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|
3373 bool os::Solaris::setup_large_pages(caddr_t start, size_t bytes, size_t align) { |
| 0 | 3374 // Signal to OS that we want large pages for addresses |
| 3375 // from addr, addr + bytes | |
| 3376 struct memcntl_mha mpss_struct; | |
| 3377 mpss_struct.mha_cmd = MHA_MAPSIZE_VA; | |
| 3378 mpss_struct.mha_pagesize = align; | |
| 3379 mpss_struct.mha_flags = 0; | |
|
11111
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diff
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|
3380 // Upon successful completion, memcntl() returns 0 |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
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10986
diff
changeset
|
3381 if (memcntl(start, bytes, MC_HAT_ADVISE, (caddr_t) &mpss_struct, 0, 0)) { |
| 0 | 3382 debug_only(warning("Attempt to use MPSS failed.")); |
| 3383 return false; | |
| 3384 } | |
| 3385 return true; | |
| 3386 } | |
| 3387 | |
|
12110
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
11112
diff
changeset
|
3388 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
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parents:
10986
diff
changeset
|
3389 fatal("os::reserve_memory_special should not be called on Solaris."); |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
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10986
diff
changeset
|
3390 return NULL; |
| 0 | 3391 } |
| 3392 | |
| 3393 bool os::release_memory_special(char* base, size_t bytes) { | |
|
11111
dec841e0c9aa
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10986
diff
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|
3394 fatal("os::release_memory_special should not be called on Solaris."); |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
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diff
changeset
|
3395 return false; |
| 0 | 3396 } |
| 3397 | |
| 3398 size_t os::large_page_size() { | |
| 3399 return _large_page_size; | |
| 3400 } | |
| 3401 | |
| 3402 // MPSS allows application to commit large page memory on demand; with ISM | |
| 3403 // the entire memory region must be allocated as shared memory. | |
| 3404 bool os::can_commit_large_page_memory() { | |
|
11111
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10986
diff
changeset
|
3405 return true; |
| 0 | 3406 } |
| 3407 | |
|
79
82db0859acbe
6642862: Code cache allocation fails with large pages after 6588638
jcoomes
parents:
61
diff
changeset
|
3408 bool os::can_execute_large_page_memory() { |
|
11111
dec841e0c9aa
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diff
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|
3409 return true; |
|
79
82db0859acbe
6642862: Code cache allocation fails with large pages after 6588638
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parents:
61
diff
changeset
|
3410 } |
|
82db0859acbe
6642862: Code cache allocation fails with large pages after 6588638
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61
diff
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|
3411 |
| 0 | 3412 static int os_sleep(jlong millis, bool interruptible) { |
| 3413 const jlong limit = INT_MAX; | |
| 3414 jlong prevtime; | |
| 3415 int res; | |
| 3416 | |
| 3417 while (millis > limit) { | |
| 3418 if ((res = os_sleep(limit, interruptible)) != OS_OK) | |
| 3419 return res; | |
| 3420 millis -= limit; | |
| 3421 } | |
| 3422 | |
| 3423 // Restart interrupted polls with new parameters until the proper delay | |
| 3424 // has been completed. | |
| 3425 | |
| 3426 prevtime = getTimeMillis(); | |
| 3427 | |
| 3428 while (millis > 0) { | |
| 3429 jlong newtime; | |
| 3430 | |
| 3431 if (!interruptible) { | |
| 3432 // Following assert fails for os::yield_all: | |
| 3433 // assert(!thread->is_Java_thread(), "must not be java thread"); | |
| 3434 res = poll(NULL, 0, millis); | |
| 3435 } else { | |
| 3436 JavaThread *jt = JavaThread::current(); | |
| 3437 | |
| 3438 INTERRUPTIBLE_NORESTART_VM_ALWAYS(poll(NULL, 0, millis), res, jt, | |
| 3439 os::Solaris::clear_interrupted); | |
| 3440 } | |
| 3441 | |
| 3442 // INTERRUPTIBLE_NORESTART_VM_ALWAYS returns res == OS_INTRPT for | |
| 3443 // thread.Interrupt. | |
| 3444 | |
| 1967 | 3445 // See c/r 6751923. Poll can return 0 before time |
| 3446 // has elapsed if time is set via clock_settime (as NTP does). | |
| 3447 // res == 0 if poll timed out (see man poll RETURN VALUES) | |
| 3448 // using the logic below checks that we really did | |
| 3449 // sleep at least "millis" if not we'll sleep again. | |
| 3450 if( ( res == 0 ) || ((res == OS_ERR) && (errno == EINTR))) { | |
| 0 | 3451 newtime = getTimeMillis(); |
| 3452 assert(newtime >= prevtime, "time moving backwards"); | |
| 3453 /* Doing prevtime and newtime in microseconds doesn't help precision, | |
| 3454 and trying to round up to avoid lost milliseconds can result in a | |
| 3455 too-short delay. */ | |
| 3456 millis -= newtime - prevtime; | |
| 3457 if(millis <= 0) | |
| 3458 return OS_OK; | |
| 3459 prevtime = newtime; | |
| 3460 } else | |
| 3461 return res; | |
| 3462 } | |
| 3463 | |
| 3464 return OS_OK; | |
| 3465 } | |
| 3466 | |
| 3467 // Read calls from inside the vm need to perform state transitions | |
| 3468 size_t os::read(int fd, void *buf, unsigned int nBytes) { | |
| 3469 INTERRUPTIBLE_RETURN_INT_VM(::read(fd, buf, nBytes), os::Solaris::clear_interrupted); | |
| 3470 } | |
| 3471 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
3472 size_t os::restartable_read(int fd, void *buf, unsigned int nBytes) { |
|
828eafbd85cc
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ikrylov
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diff
changeset
|
3473 INTERRUPTIBLE_RETURN_INT(::read(fd, buf, nBytes), os::Solaris::clear_interrupted); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
3474 } |
|
828eafbd85cc
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1972
diff
changeset
|
3475 |
| 0 | 3476 int os::sleep(Thread* thread, jlong millis, bool interruptible) { |
| 3477 assert(thread == Thread::current(), "thread consistency check"); | |
| 3478 | |
| 3479 // TODO-FIXME: this should be removed. | |
| 3480 // On Solaris machines (especially 2.5.1) we found that sometimes the VM gets into a live lock | |
| 3481 // situation with a JavaThread being starved out of a lwp. The kernel doesn't seem to generate | |
| 3482 // a SIGWAITING signal which would enable the threads library to create a new lwp for the starving | |
| 3483 // thread. We suspect that because the Watcher thread keeps waking up at periodic intervals the kernel | |
| 3484 // is fooled into believing that the system is making progress. In the code below we block the | |
| 3485 // the watcher thread while safepoint is in progress so that it would not appear as though the | |
| 3486 // system is making progress. | |
| 3487 if (!Solaris::T2_libthread() && | |
| 3488 thread->is_Watcher_thread() && SafepointSynchronize::is_synchronizing() && !Arguments::has_profile()) { | |
| 3489 // We now try to acquire the threads lock. Since this lock is held by the VM thread during | |
| 3490 // the entire safepoint, the watcher thread will line up here during the safepoint. | |
| 3491 Threads_lock->lock_without_safepoint_check(); | |
| 3492 Threads_lock->unlock(); | |
| 3493 } | |
| 3494 | |
| 3495 if (thread->is_Java_thread()) { | |
| 3496 // This is a JavaThread so we honor the _thread_blocked protocol | |
| 3497 // even for sleeps of 0 milliseconds. This was originally done | |
| 3498 // as a workaround for bug 4338139. However, now we also do it | |
| 3499 // to honor the suspend-equivalent protocol. | |
| 3500 | |
| 3501 JavaThread *jt = (JavaThread *) thread; | |
| 3502 ThreadBlockInVM tbivm(jt); | |
| 3503 | |
| 3504 jt->set_suspend_equivalent(); | |
| 3505 // cleared by handle_special_suspend_equivalent_condition() or | |
| 3506 // java_suspend_self() via check_and_wait_while_suspended() | |
| 3507 | |
| 3508 int ret_code; | |
| 3509 if (millis <= 0) { | |
| 3510 thr_yield(); | |
| 3511 ret_code = 0; | |
| 3512 } else { | |
| 3513 // The original sleep() implementation did not create an | |
| 3514 // OSThreadWaitState helper for sleeps of 0 milliseconds. | |
| 3515 // I'm preserving that decision for now. | |
| 3516 OSThreadWaitState osts(jt->osthread(), false /* not Object.wait() */); | |
| 3517 | |
| 3518 ret_code = os_sleep(millis, interruptible); | |
| 3519 } | |
| 3520 | |
| 3521 // were we externally suspended while we were waiting? | |
| 3522 jt->check_and_wait_while_suspended(); | |
| 3523 | |
| 3524 return ret_code; | |
| 3525 } | |
| 3526 | |
| 3527 // non-JavaThread from this point on: | |
| 3528 | |
| 3529 if (millis <= 0) { | |
| 3530 thr_yield(); | |
| 3531 return 0; | |
| 3532 } | |
| 3533 | |
| 3534 OSThreadWaitState osts(thread->osthread(), false /* not Object.wait() */); | |
| 3535 | |
| 3536 return os_sleep(millis, interruptible); | |
| 3537 } | |
| 3538 | |
| 3539 int os::naked_sleep() { | |
| 3540 // %% make the sleep time an integer flag. for now use 1 millisec. | |
| 3541 return os_sleep(1, false); | |
| 3542 } | |
| 3543 | |
| 3544 // Sleep forever; naked call to OS-specific sleep; use with CAUTION | |
| 3545 void os::infinite_sleep() { | |
| 3546 while (true) { // sleep forever ... | |
| 3547 ::sleep(100); // ... 100 seconds at a time | |
| 3548 } | |
| 3549 } | |
| 3550 | |
| 3551 // Used to convert frequent JVM_Yield() to nops | |
| 3552 bool os::dont_yield() { | |
| 3553 if (DontYieldALot) { | |
| 3554 static hrtime_t last_time = 0; | |
| 3555 hrtime_t diff = getTimeNanos() - last_time; | |
| 3556 | |
| 3557 if (diff < DontYieldALotInterval * 1000000) | |
| 3558 return true; | |
| 3559 | |
| 3560 last_time += diff; | |
| 3561 | |
| 3562 return false; | |
| 3563 } | |
| 3564 else { | |
| 3565 return false; | |
| 3566 } | |
| 3567 } | |
| 3568 | |
| 3569 // Caveat: Solaris os::yield() causes a thread-state transition whereas | |
| 3570 // the linux and win32 implementations do not. This should be checked. | |
| 3571 | |
| 3572 void os::yield() { | |
| 3573 // Yields to all threads with same or greater priority | |
| 3574 os::sleep(Thread::current(), 0, false); | |
| 3575 } | |
| 3576 | |
| 3577 // Note that yield semantics are defined by the scheduling class to which | |
| 3578 // the thread currently belongs. Typically, yield will _not yield to | |
| 3579 // other equal or higher priority threads that reside on the dispatch queues | |
| 3580 // of other CPUs. | |
| 3581 | |
| 3582 os::YieldResult os::NakedYield() { thr_yield(); return os::YIELD_UNKNOWN; } | |
| 3583 | |
| 3584 | |
| 3585 // On Solaris we found that yield_all doesn't always yield to all other threads. | |
| 3586 // There have been cases where there is a thread ready to execute but it doesn't | |
| 3587 // get an lwp as the VM thread continues to spin with sleeps of 1 millisecond. | |
| 3588 // The 1 millisecond wait doesn't seem long enough for the kernel to issue a | |
| 3589 // SIGWAITING signal which will cause a new lwp to be created. So we count the | |
| 3590 // number of times yield_all is called in the one loop and increase the sleep | |
| 3591 // time after 8 attempts. If this fails too we increase the concurrency level | |
| 3592 // so that the starving thread would get an lwp | |
| 3593 | |
| 3594 void os::yield_all(int attempts) { | |
| 3595 // Yields to all threads, including threads with lower priorities | |
| 3596 if (attempts == 0) { | |
| 3597 os::sleep(Thread::current(), 1, false); | |
| 3598 } else { | |
| 3599 int iterations = attempts % 30; | |
| 3600 if (iterations == 0 && !os::Solaris::T2_libthread()) { | |
| 3601 // thr_setconcurrency and _getconcurrency make sense only under T1. | |
| 3602 int noofLWPS = thr_getconcurrency(); | |
| 3603 if (noofLWPS < (Threads::number_of_threads() + 2)) { | |
| 3604 thr_setconcurrency(thr_getconcurrency() + 1); | |
| 3605 } | |
| 3606 } else if (iterations < 25) { | |
| 3607 os::sleep(Thread::current(), 1, false); | |
| 3608 } else { | |
| 3609 os::sleep(Thread::current(), 10, false); | |
| 3610 } | |
| 3611 } | |
| 3612 } | |
| 3613 | |
| 3614 // Called from the tight loops to possibly influence time-sharing heuristics | |
| 3615 void os::loop_breaker(int attempts) { | |
| 3616 os::yield_all(attempts); | |
| 3617 } | |
| 3618 | |
| 3619 | |
| 3620 // Interface for setting lwp priorities. If we are using T2 libthread, | |
| 3621 // which forces the use of BoundThreads or we manually set UseBoundThreads, | |
| 3622 // all of our threads will be assigned to real lwp's. Using the thr_setprio | |
| 3623 // function is meaningless in this mode so we must adjust the real lwp's priority | |
| 3624 // The routines below implement the getting and setting of lwp priorities. | |
| 3625 // | |
| 3626 // Note: There are three priority scales used on Solaris. Java priotities | |
| 3627 // which range from 1 to 10, libthread "thr_setprio" scale which range | |
| 3628 // from 0 to 127, and the current scheduling class of the process we | |
| 3629 // are running in. This is typically from -60 to +60. | |
| 3630 // The setting of the lwp priorities in done after a call to thr_setprio | |
| 3631 // so Java priorities are mapped to libthread priorities and we map from | |
| 3632 // the latter to lwp priorities. We don't keep priorities stored in | |
| 3633 // Java priorities since some of our worker threads want to set priorities | |
| 3634 // higher than all Java threads. | |
| 3635 // | |
| 3636 // For related information: | |
| 3637 // (1) man -s 2 priocntl | |
| 3638 // (2) man -s 4 priocntl | |
| 3639 // (3) man dispadmin | |
| 3640 // = librt.so | |
| 3641 // = libthread/common/rtsched.c - thrp_setlwpprio(). | |
| 3642 // = ps -cL <pid> ... to validate priority. | |
| 3643 // = sched_get_priority_min and _max | |
| 3644 // pthread_create | |
| 3645 // sched_setparam | |
| 3646 // pthread_setschedparam | |
| 3647 // | |
| 3648 // Assumptions: | |
| 3649 // + We assume that all threads in the process belong to the same | |
| 3650 // scheduling class. IE. an homogenous process. | |
| 3651 // + Must be root or in IA group to change change "interactive" attribute. | |
| 3652 // Priocntl() will fail silently. The only indication of failure is when | |
| 3653 // we read-back the value and notice that it hasn't changed. | |
| 3654 // + Interactive threads enter the runq at the head, non-interactive at the tail. | |
| 3655 // + For RT, change timeslice as well. Invariant: | |
| 3656 // constant "priority integral" | |
| 3657 // Konst == TimeSlice * (60-Priority) | |
| 3658 // Given a priority, compute appropriate timeslice. | |
| 3659 // + Higher numerical values have higher priority. | |
| 3660 | |
| 3661 // sched class attributes | |
| 3662 typedef struct { | |
| 3663 int schedPolicy; // classID | |
| 3664 int maxPrio; | |
| 3665 int minPrio; | |
| 3666 } SchedInfo; | |
| 3667 | |
| 3668 | |
|
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|
3669 static SchedInfo tsLimits, iaLimits, rtLimits, fxLimits; |
| 0 | 3670 |
| 3671 #ifdef ASSERT | |
| 3672 static int ReadBackValidate = 1; | |
| 3673 #endif | |
| 3674 static int myClass = 0; | |
| 3675 static int myMin = 0; | |
| 3676 static int myMax = 0; | |
| 3677 static int myCur = 0; | |
| 3678 static bool priocntl_enable = false; | |
| 3679 | |
|
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|
3680 static const int criticalPrio = 60; // FX/60 is critical thread class/priority on T4 |
|
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|
3681 static int java_MaxPriority_to_os_priority = 0; // Saved mapping |
| 0 | 3682 |
| 3683 | |
| 3684 // lwp_priocntl_init | |
| 3685 // | |
| 3686 // Try to determine the priority scale for our process. | |
| 3687 // | |
| 3688 // Return errno or 0 if OK. | |
| 3689 // | |
|
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|
3690 static int lwp_priocntl_init () { |
| 0 | 3691 int rslt; |
| 3692 pcinfo_t ClassInfo; | |
| 3693 pcparms_t ParmInfo; | |
| 3694 int i; | |
| 3695 | |
| 3696 if (!UseThreadPriorities) return 0; | |
| 3697 | |
| 3698 // We are using Bound threads, we need to determine our priority ranges | |
| 3699 if (os::Solaris::T2_libthread() || UseBoundThreads) { | |
| 3700 // If ThreadPriorityPolicy is 1, switch tables | |
| 3701 if (ThreadPriorityPolicy == 1) { | |
|
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|
3702 for (i = 0 ; i < CriticalPriority+1; i++) |
| 0 | 3703 os::java_to_os_priority[i] = prio_policy1[i]; |
| 3704 } | |
|
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|
3705 if (UseCriticalJavaThreadPriority) { |
|
de268c8a8075
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|
3706 // MaxPriority always maps to the FX scheduling class and criticalPrio. |
|
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|
3707 // See set_native_priority() and set_lwp_class_and_priority(). |
|
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|
3708 // Save original MaxPriority mapping in case attempt to |
|
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|
3709 // use critical priority fails. |
|
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|
3710 java_MaxPriority_to_os_priority = os::java_to_os_priority[MaxPriority]; |
|
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|
3711 // Set negative to distinguish from other priorities |
|
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|
3712 os::java_to_os_priority[MaxPriority] = -criticalPrio; |
|
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|
3713 } |
| 0 | 3714 } |
| 3715 // Not using Bound Threads, set to ThreadPolicy 1 | |
| 3716 else { | |
|
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|
3717 for ( i = 0 ; i < CriticalPriority+1; i++ ) { |
| 0 | 3718 os::java_to_os_priority[i] = prio_policy1[i]; |
| 3719 } | |
| 3720 return 0; | |
| 3721 } | |
| 3722 | |
| 3723 // Get IDs for a set of well-known scheduling classes. | |
| 3724 // TODO-FIXME: GETCLINFO returns the current # of classes in the | |
| 3725 // the system. We should have a loop that iterates over the | |
| 3726 // classID values, which are known to be "small" integers. | |
| 3727 | |
| 3728 strcpy(ClassInfo.pc_clname, "TS"); | |
| 3729 ClassInfo.pc_cid = -1; | |
|
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|
3730 rslt = priocntl(P_ALL, 0, PC_GETCID, (caddr_t)&ClassInfo); |
| 0 | 3731 if (rslt < 0) return errno; |
| 3732 assert(ClassInfo.pc_cid != -1, "cid for TS class is -1"); | |
| 3733 tsLimits.schedPolicy = ClassInfo.pc_cid; | |
| 3734 tsLimits.maxPrio = ((tsinfo_t*)ClassInfo.pc_clinfo)->ts_maxupri; | |
| 3735 tsLimits.minPrio = -tsLimits.maxPrio; | |
| 3736 | |
| 3737 strcpy(ClassInfo.pc_clname, "IA"); | |
| 3738 ClassInfo.pc_cid = -1; | |
|
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|
3739 rslt = priocntl(P_ALL, 0, PC_GETCID, (caddr_t)&ClassInfo); |
| 0 | 3740 if (rslt < 0) return errno; |
| 3741 assert(ClassInfo.pc_cid != -1, "cid for IA class is -1"); | |
| 3742 iaLimits.schedPolicy = ClassInfo.pc_cid; | |
| 3743 iaLimits.maxPrio = ((iainfo_t*)ClassInfo.pc_clinfo)->ia_maxupri; | |
| 3744 iaLimits.minPrio = -iaLimits.maxPrio; | |
| 3745 | |
| 3746 strcpy(ClassInfo.pc_clname, "RT"); | |
| 3747 ClassInfo.pc_cid = -1; | |
|
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|
3748 rslt = priocntl(P_ALL, 0, PC_GETCID, (caddr_t)&ClassInfo); |
| 0 | 3749 if (rslt < 0) return errno; |
| 3750 assert(ClassInfo.pc_cid != -1, "cid for RT class is -1"); | |
| 3751 rtLimits.schedPolicy = ClassInfo.pc_cid; | |
| 3752 rtLimits.maxPrio = ((rtinfo_t*)ClassInfo.pc_clinfo)->rt_maxpri; | |
| 3753 rtLimits.minPrio = 0; | |
| 3754 | |
|
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|
3755 strcpy(ClassInfo.pc_clname, "FX"); |
|
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|
3756 ClassInfo.pc_cid = -1; |
|
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|
3757 rslt = priocntl(P_ALL, 0, PC_GETCID, (caddr_t)&ClassInfo); |
|
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|
3758 if (rslt < 0) return errno; |
|
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diff
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|
3759 assert(ClassInfo.pc_cid != -1, "cid for FX class is -1"); |
|
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4803
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|
3760 fxLimits.schedPolicy = ClassInfo.pc_cid; |
|
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|
3761 fxLimits.maxPrio = ((fxinfo_t*)ClassInfo.pc_clinfo)->fx_maxupri; |
|
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|
3762 fxLimits.minPrio = 0; |
| 0 | 3763 |
| 3764 // Query our "current" scheduling class. | |
|
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4803
diff
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|
3765 // This will normally be IA, TS or, rarely, FX or RT. |
|
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4803
diff
changeset
|
3766 memset(&ParmInfo, 0, sizeof(ParmInfo)); |
| 0 | 3767 ParmInfo.pc_cid = PC_CLNULL; |
|
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|
3768 rslt = priocntl(P_PID, P_MYID, PC_GETPARMS, (caddr_t)&ParmInfo); |
|
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diff
changeset
|
3769 if (rslt < 0) return errno; |
| 0 | 3770 myClass = ParmInfo.pc_cid; |
| 3771 | |
| 3772 // We now know our scheduling classId, get specific information | |
|
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4803
diff
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|
3773 // about the class. |
| 0 | 3774 ClassInfo.pc_cid = myClass; |
| 3775 ClassInfo.pc_clname[0] = 0; | |
|
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|
3776 rslt = priocntl((idtype)0, 0, PC_GETCLINFO, (caddr_t)&ClassInfo); |
|
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4803
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|
3777 if (rslt < 0) return errno; |
|
de268c8a8075
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phh
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4803
diff
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|
3778 |
|
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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|
3779 if (ThreadPriorityVerbose) { |
|
de268c8a8075
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4803
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|
3780 tty->print_cr("lwp_priocntl_init: Class=%d(%s)...", myClass, ClassInfo.pc_clname); |
|
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|
3781 } |
| 0 | 3782 |
| 3783 memset(&ParmInfo, 0, sizeof(pcparms_t)); | |
| 3784 ParmInfo.pc_cid = PC_CLNULL; | |
|
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|
3785 rslt = priocntl(P_PID, P_MYID, PC_GETPARMS, (caddr_t)&ParmInfo); |
| 0 | 3786 if (rslt < 0) return errno; |
| 3787 | |
| 3788 if (ParmInfo.pc_cid == rtLimits.schedPolicy) { | |
| 3789 myMin = rtLimits.minPrio; | |
| 3790 myMax = rtLimits.maxPrio; | |
| 3791 } else if (ParmInfo.pc_cid == iaLimits.schedPolicy) { | |
| 3792 iaparms_t *iaInfo = (iaparms_t*)ParmInfo.pc_clparms; | |
| 3793 myMin = iaLimits.minPrio; | |
| 3794 myMax = iaLimits.maxPrio; | |
| 3795 myMax = MIN2(myMax, (int)iaInfo->ia_uprilim); // clamp - restrict | |
| 3796 } else if (ParmInfo.pc_cid == tsLimits.schedPolicy) { | |
| 3797 tsparms_t *tsInfo = (tsparms_t*)ParmInfo.pc_clparms; | |
| 3798 myMin = tsLimits.minPrio; | |
| 3799 myMax = tsLimits.maxPrio; | |
| 3800 myMax = MIN2(myMax, (int)tsInfo->ts_uprilim); // clamp - restrict | |
|
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diff
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|
3801 } else if (ParmInfo.pc_cid == fxLimits.schedPolicy) { |
|
de268c8a8075
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|
3802 fxparms_t *fxInfo = (fxparms_t*)ParmInfo.pc_clparms; |
|
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|
3803 myMin = fxLimits.minPrio; |
|
de268c8a8075
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|
3804 myMax = fxLimits.maxPrio; |
|
de268c8a8075
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|
3805 myMax = MIN2(myMax, (int)fxInfo->fx_uprilim); // clamp - restrict |
| 0 | 3806 } else { |
| 3807 // No clue - punt | |
| 3808 if (ThreadPriorityVerbose) | |
| 3809 tty->print_cr ("Unknown scheduling class: %s ... \n", ClassInfo.pc_clname); | |
| 3810 return EINVAL; // no clue, punt | |
| 3811 } | |
| 3812 | |
|
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|
3813 if (ThreadPriorityVerbose) { |
|
de268c8a8075
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|
3814 tty->print_cr ("Thread priority Range: [%d..%d]\n", myMin, myMax); |
|
de268c8a8075
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|
3815 } |
| 0 | 3816 |
| 3817 priocntl_enable = true; // Enable changing priorities | |
| 3818 return 0; | |
| 3819 } | |
| 3820 | |
| 3821 #define IAPRI(x) ((iaparms_t *)((x).pc_clparms)) | |
| 3822 #define RTPRI(x) ((rtparms_t *)((x).pc_clparms)) | |
| 3823 #define TSPRI(x) ((tsparms_t *)((x).pc_clparms)) | |
|
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|
3824 #define FXPRI(x) ((fxparms_t *)((x).pc_clparms)) |
| 0 | 3825 |
| 3826 | |
| 3827 // scale_to_lwp_priority | |
| 3828 // | |
| 3829 // Convert from the libthread "thr_setprio" scale to our current | |
| 3830 // lwp scheduling class scale. | |
| 3831 // | |
| 3832 static | |
| 3833 int scale_to_lwp_priority (int rMin, int rMax, int x) | |
| 3834 { | |
| 3835 int v; | |
| 3836 | |
| 3837 if (x == 127) return rMax; // avoid round-down | |
| 3838 v = (((x*(rMax-rMin)))/128)+rMin; | |
| 3839 return v; | |
| 3840 } | |
| 3841 | |
| 3842 | |
|
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|
3843 // set_lwp_class_and_priority |
| 0 | 3844 // |
|
4854
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|
3845 // Set the class and priority of the lwp. This call should only |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3846 // be made when using bound threads (T2 threads are bound by default). |
| 0 | 3847 // |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3848 int set_lwp_class_and_priority(int ThreadID, int lwpid, |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3849 int newPrio, int new_class, bool scale) { |
| 0 | 3850 int rslt; |
| 3851 int Actual, Expected, prv; | |
| 3852 pcparms_t ParmInfo; // for GET-SET | |
| 3853 #ifdef ASSERT | |
| 3854 pcparms_t ReadBack; // for readback | |
| 3855 #endif | |
| 3856 | |
| 3857 // Set priority via PC_GETPARMS, update, PC_SETPARMS | |
| 3858 // Query current values. | |
| 3859 // TODO: accelerate this by eliminating the PC_GETPARMS call. | |
| 3860 // Cache "pcparms_t" in global ParmCache. | |
| 3861 // TODO: elide set-to-same-value | |
| 3862 | |
| 3863 // If something went wrong on init, don't change priorities. | |
| 3864 if ( !priocntl_enable ) { | |
| 3865 if (ThreadPriorityVerbose) | |
| 3866 tty->print_cr("Trying to set priority but init failed, ignoring"); | |
| 3867 return EINVAL; | |
| 3868 } | |
| 3869 | |
| 3870 // If lwp hasn't started yet, just return | |
| 3871 // the _start routine will call us again. | |
| 3872 if ( lwpid <= 0 ) { | |
| 3873 if (ThreadPriorityVerbose) { | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3874 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
|
3875 INTPTR_FORMAT " to %d, lwpid not set", |
| 0 | 3876 ThreadID, newPrio); |
| 3877 } | |
| 3878 return 0; | |
| 3879 } | |
| 3880 | |
| 3881 if (ThreadPriorityVerbose) { | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3882 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
|
3883 INTPTR_FORMAT "@" INTPTR_FORMAT " %d) ", |
| 0 | 3884 ThreadID, lwpid, newPrio); |
| 3885 } | |
| 3886 | |
| 3887 memset(&ParmInfo, 0, sizeof(pcparms_t)); | |
| 3888 ParmInfo.pc_cid = PC_CLNULL; | |
|
11111
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3889 rslt = priocntl(P_LWPID, lwpid, PC_GETPARMS, (caddr_t)&ParmInfo); |
| 0 | 3890 if (rslt < 0) return errno; |
| 3891 | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3892 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
|
3893 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
|
3894 |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3895 if (new_class == rtLimits.schedPolicy) { |
| 0 | 3896 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
|
3897 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
|
3898 rtLimits.maxPrio, newPrio) |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3899 : newPrio; |
| 0 | 3900 rtInfo->rt_tqsecs = RT_NOCHANGE; |
| 3901 rtInfo->rt_tqnsecs = RT_NOCHANGE; | |
| 3902 if (ThreadPriorityVerbose) { | |
| 3903 tty->print_cr("RT: %d->%d\n", newPrio, rtInfo->rt_pri); | |
| 3904 } | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3905 } 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
|
3906 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
|
3907 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
|
3908 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
|
3909 ? (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
|
3910 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
|
3911 maxClamped, newPrio) |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3912 : newPrio; |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3913 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
|
3914 ? IA_NOCHANGE : (pri_t)iaLimits.maxPrio; |
| 0 | 3915 iaInfo->ia_mode = IA_NOCHANGE; |
| 3916 if (ThreadPriorityVerbose) { | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3917 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
|
3918 iaLimits.minPrio, maxClamped, newPrio, iaInfo->ia_upri); |
| 0 | 3919 } |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3920 } 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
|
3921 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
|
3922 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
|
3923 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
|
3924 ? (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
|
3925 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
|
3926 maxClamped, newPrio) |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3927 : newPrio; |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3928 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
|
3929 ? TS_NOCHANGE : (pri_t)tsLimits.maxPrio; |
| 0 | 3930 if (ThreadPriorityVerbose) { |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3931 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
|
3932 tsLimits.minPrio, maxClamped, newPrio, tsInfo->ts_upri); |
| 0 | 3933 } |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3934 } 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
|
3935 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
|
3936 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
|
3937 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
|
3938 ? (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
|
3939 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
|
3940 maxClamped, newPrio) |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3941 : newPrio; |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3942 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
|
3943 ? 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
|
3944 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
|
3945 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
|
3946 if (ThreadPriorityVerbose) { |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3947 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
|
3948 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
|
3949 } |
| 0 | 3950 } else { |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3951 if (ThreadPriorityVerbose) { |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3952 tty->print_cr("Unknown new scheduling class %d\n", new_class); |
| 0 | 3953 } |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3954 return EINVAL; // no clue, punt |
| 0 | 3955 } |
| 3956 | |
|
11111
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3957 rslt = priocntl(P_LWPID, lwpid, PC_SETPARMS, (caddr_t)&ParmInfo); |
| 0 | 3958 if (ThreadPriorityVerbose && rslt) { |
| 3959 tty->print_cr ("PC_SETPARMS ->%d %d\n", rslt, errno); | |
| 3960 } | |
| 3961 if (rslt < 0) return errno; | |
| 3962 | |
| 3963 #ifdef ASSERT | |
| 3964 // Sanity check: read back what we just attempted to set. | |
| 3965 // In theory it could have changed in the interim ... | |
| 3966 // | |
| 3967 // The priocntl system call is tricky. | |
| 3968 // Sometimes it'll validate the priority value argument and | |
| 3969 // return EINVAL if unhappy. At other times it fails silently. | |
| 3970 // Readbacks are prudent. | |
| 3971 | |
| 3972 if (!ReadBackValidate) return 0; | |
| 3973 | |
| 3974 memset(&ReadBack, 0, sizeof(pcparms_t)); | |
| 3975 ReadBack.pc_cid = PC_CLNULL; | |
|
11111
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3976 rslt = priocntl(P_LWPID, lwpid, PC_GETPARMS, (caddr_t)&ReadBack); |
| 0 | 3977 assert(rslt >= 0, "priocntl failed"); |
| 3978 Actual = Expected = 0xBAD; | |
| 3979 assert(ParmInfo.pc_cid == ReadBack.pc_cid, "cid's don't match"); | |
| 3980 if (ParmInfo.pc_cid == rtLimits.schedPolicy) { | |
| 3981 Actual = RTPRI(ReadBack)->rt_pri; | |
| 3982 Expected = RTPRI(ParmInfo)->rt_pri; | |
| 3983 } else if (ParmInfo.pc_cid == iaLimits.schedPolicy) { | |
| 3984 Actual = IAPRI(ReadBack)->ia_upri; | |
| 3985 Expected = IAPRI(ParmInfo)->ia_upri; | |
| 3986 } else if (ParmInfo.pc_cid == tsLimits.schedPolicy) { | |
| 3987 Actual = TSPRI(ReadBack)->ts_upri; | |
| 3988 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
|
3989 } 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
|
3990 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
|
3991 Expected = FXPRI(ParmInfo)->fx_upri; |
| 0 | 3992 } else { |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3993 if (ThreadPriorityVerbose) { |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3994 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
|
3995 ParmInfo.pc_cid); |
| 0 | 3996 } |
| 3997 } | |
| 3998 | |
| 3999 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
|
4000 if (ThreadPriorityVerbose) { |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
4001 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
|
4002 lwpid, newPrio, ReadBack.pc_cid, Actual, Expected); |
| 0 | 4003 } |
| 4004 } | |
| 4005 #endif | |
| 4006 | |
| 4007 return 0; | |
| 4008 } | |
| 4009 | |
| 4010 // Solaris only gives access to 128 real priorities at a time, | |
| 4011 // so we expand Java's ten to fill this range. This would be better | |
| 4012 // if we dynamically adjusted relative priorities. | |
| 4013 // | |
| 4014 // The ThreadPriorityPolicy option allows us to select 2 different | |
| 4015 // priority scales. | |
| 4016 // | |
| 4017 // ThreadPriorityPolicy=0 | |
| 4018 // Since the Solaris' default priority is MaximumPriority, we do not | |
| 4019 // set a priority lower than Max unless a priority lower than | |
| 4020 // NormPriority is requested. | |
| 4021 // | |
| 4022 // ThreadPriorityPolicy=1 | |
| 4023 // This mode causes the priority table to get filled with | |
| 4024 // linear values. NormPriority get's mapped to 50% of the | |
| 4025 // Maximum priority an so on. This will cause VM threads | |
| 4026 // to get unfair treatment against other Solaris processes | |
| 4027 // which do not explicitly alter their thread priorities. | |
| 4028 // | |
| 4029 | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
4030 int os::java_to_os_priority[CriticalPriority + 1] = { |
| 0 | 4031 -99999, // 0 Entry should never be used |
| 4032 | |
| 4033 0, // 1 MinPriority | |
| 4034 32, // 2 | |
| 4035 64, // 3 | |
| 4036 | |
| 4037 96, // 4 | |
| 4038 127, // 5 NormPriority | |
| 4039 127, // 6 | |
| 4040 | |
| 4041 127, // 7 | |
| 4042 127, // 8 | |
| 4043 127, // 9 NearMaxPriority | |
| 4044 | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
4045 127, // 10 MaxPriority |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
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4046 |
|
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|
4047 -criticalPrio // 11 CriticalPriority |
| 0 | 4048 }; |
| 4049 | |
| 4050 OSReturn os::set_native_priority(Thread* thread, int newpri) { | |
|
4854
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|
4051 OSThread* osthread = thread->osthread(); |
|
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4052 |
|
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|
4053 // Save requested priority in case the thread hasn't been started |
|
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|
4054 osthread->set_native_priority(newpri); |
|
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4055 |
|
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|
4056 // Check for critical priority request |
|
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4057 bool fxcritical = false; |
|
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|
4058 if (newpri == -criticalPrio) { |
|
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4059 fxcritical = true; |
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4060 newpri = criticalPrio; |
|
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4061 } |
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|
4062 |
| 0 | 4063 assert(newpri >= MinimumPriority && newpri <= MaximumPriority, "bad priority mapping"); |
|
4854
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4064 if (!UseThreadPriorities) return OS_OK; |
|
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|
4065 |
|
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|
4066 int status = 0; |
|
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4067 |
|
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|
4068 if (!fxcritical) { |
|
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4069 // Use thr_setprio only if we have a priority that thr_setprio understands |
|
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4070 status = thr_setprio(thread->osthread()->thread_id(), newpri); |
|
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4071 } |
|
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|
4072 |
|
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|
4073 if (os::Solaris::T2_libthread() || |
|
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4074 (UseBoundThreads && osthread->is_vm_created())) { |
|
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|
4075 int lwp_status = |
|
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|
4076 set_lwp_class_and_priority(osthread->thread_id(), |
|
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|
4077 osthread->lwp_id(), |
|
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|
4078 newpri, |
|
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|
4079 fxcritical ? fxLimits.schedPolicy : myClass, |
|
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4080 !fxcritical); |
|
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|
4081 if (lwp_status != 0 && fxcritical) { |
|
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4082 // Try again, this time without changing the scheduling class |
|
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|
4083 newpri = java_MaxPriority_to_os_priority; |
|
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|
4084 lwp_status = set_lwp_class_and_priority(osthread->thread_id(), |
|
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|
4085 osthread->lwp_id(), |
|
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|
4086 newpri, myClass, false); |
|
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|
4087 } |
|
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|
4088 status |= lwp_status; |
|
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|
4089 } |
| 0 | 4090 return (status == 0) ? OS_OK : OS_ERR; |
| 4091 } | |
| 4092 | |
| 4093 | |
| 4094 OSReturn os::get_native_priority(const Thread* const thread, int *priority_ptr) { | |
| 4095 int p; | |
| 4096 if ( !UseThreadPriorities ) { | |
| 4097 *priority_ptr = NormalPriority; | |
| 4098 return OS_OK; | |
| 4099 } | |
| 4100 int status = thr_getprio(thread->osthread()->thread_id(), &p); | |
| 4101 if (status != 0) { | |
| 4102 return OS_ERR; | |
| 4103 } | |
| 4104 *priority_ptr = p; | |
| 4105 return OS_OK; | |
| 4106 } | |
| 4107 | |
| 4108 | |
| 4109 // Hint to the underlying OS that a task switch would not be good. | |
| 4110 // Void return because it's a hint and can fail. | |
| 4111 void os::hint_no_preempt() { | |
| 4112 schedctl_start(schedctl_init()); | |
| 4113 } | |
| 4114 | |
| 10405 | 4115 static void resume_clear_context(OSThread *osthread) { |
| 4116 osthread->set_ucontext(NULL); | |
| 4117 } | |
| 4118 | |
| 4119 static void suspend_save_context(OSThread *osthread, ucontext_t* context) { | |
| 4120 osthread->set_ucontext(context); | |
| 4121 } | |
| 4122 | |
| 4123 static Semaphore sr_semaphore; | |
| 4124 | |
| 4125 void os::Solaris::SR_handler(Thread* thread, ucontext_t* uc) { | |
| 4126 // Save and restore errno to avoid confusing native code with EINTR | |
| 4127 // after sigsuspend. | |
| 4128 int old_errno = errno; | |
| 4129 | |
| 4130 OSThread* osthread = thread->osthread(); | |
| 4131 assert(thread->is_VM_thread() || thread->is_Java_thread(), "Must be VMThread or JavaThread"); | |
| 4132 | |
| 4133 os::SuspendResume::State current = osthread->sr.state(); | |
| 4134 if (current == os::SuspendResume::SR_SUSPEND_REQUEST) { | |
| 4135 suspend_save_context(osthread, uc); | |
| 4136 | |
| 4137 // attempt to switch the state, we assume we had a SUSPEND_REQUEST | |
| 4138 os::SuspendResume::State state = osthread->sr.suspended(); | |
| 4139 if (state == os::SuspendResume::SR_SUSPENDED) { | |
| 4140 sigset_t suspend_set; // signals for sigsuspend() | |
| 4141 | |
| 4142 // get current set of blocked signals and unblock resume signal | |
| 4143 thr_sigsetmask(SIG_BLOCK, NULL, &suspend_set); | |
| 4144 sigdelset(&suspend_set, os::Solaris::SIGasync()); | |
| 4145 | |
| 4146 sr_semaphore.signal(); | |
| 4147 // wait here until we are resumed | |
| 4148 while (1) { | |
| 4149 sigsuspend(&suspend_set); | |
| 4150 | |
| 4151 os::SuspendResume::State result = osthread->sr.running(); | |
| 4152 if (result == os::SuspendResume::SR_RUNNING) { | |
| 4153 sr_semaphore.signal(); | |
| 4154 break; | |
| 4155 } | |
| 4156 } | |
| 4157 | |
| 4158 } else if (state == os::SuspendResume::SR_RUNNING) { | |
| 4159 // request was cancelled, continue | |
| 4160 } else { | |
| 4161 ShouldNotReachHere(); | |
| 4162 } | |
| 4163 | |
| 4164 resume_clear_context(osthread); | |
| 4165 } else if (current == os::SuspendResume::SR_RUNNING) { | |
| 4166 // request was cancelled, continue | |
| 4167 } else if (current == os::SuspendResume::SR_WAKEUP_REQUEST) { | |
| 4168 // ignore | |
| 4169 } else { | |
| 4170 // ignore | |
| 4171 } | |
| 4172 | |
| 4173 errno = old_errno; | |
| 4174 } | |
| 4175 | |
| 4176 | |
| 0 | 4177 void os::interrupt(Thread* thread) { |
| 4178 assert(Thread::current() == thread || Threads_lock->owned_by_self(), "possibility of dangling Thread pointer"); | |
| 4179 | |
| 4180 OSThread* osthread = thread->osthread(); | |
| 4181 | |
| 4182 int isInterrupted = osthread->interrupted(); | |
| 4183 if (!isInterrupted) { | |
| 4184 osthread->set_interrupted(true); | |
| 4185 OrderAccess::fence(); | |
| 4186 // os::sleep() is implemented with either poll (NULL,0,timeout) or | |
| 4187 // by parking on _SleepEvent. If the former, thr_kill will unwedge | |
| 4188 // the sleeper by SIGINTR, otherwise the unpark() will wake the sleeper. | |
| 4189 ParkEvent * const slp = thread->_SleepEvent ; | |
| 4190 if (slp != NULL) slp->unpark() ; | |
| 4191 } | |
| 4192 | |
| 4193 // For JSR166: unpark after setting status but before thr_kill -dl | |
| 4194 if (thread->is_Java_thread()) { | |
| 4195 ((JavaThread*)thread)->parker()->unpark(); | |
| 4196 } | |
| 4197 | |
| 4198 // Handle interruptible wait() ... | |
| 4199 ParkEvent * const ev = thread->_ParkEvent ; | |
| 4200 if (ev != NULL) ev->unpark() ; | |
| 4201 | |
| 4202 // When events are used everywhere for os::sleep, then this thr_kill | |
| 4203 // will only be needed if UseVMInterruptibleIO is true. | |
| 4204 | |
| 4205 if (!isInterrupted) { | |
| 4206 int status = thr_kill(osthread->thread_id(), os::Solaris::SIGinterrupt()); | |
| 4207 assert_status(status == 0, status, "thr_kill"); | |
| 4208 | |
| 4209 // Bump thread interruption counter | |
| 4210 RuntimeService::record_thread_interrupt_signaled_count(); | |
| 4211 } | |
| 4212 } | |
| 4213 | |
| 4214 | |
| 4215 bool os::is_interrupted(Thread* thread, bool clear_interrupted) { | |
| 4216 assert(Thread::current() == thread || Threads_lock->owned_by_self(), "possibility of dangling Thread pointer"); | |
| 4217 | |
| 4218 OSThread* osthread = thread->osthread(); | |
| 4219 | |
| 4220 bool res = osthread->interrupted(); | |
| 4221 | |
| 4222 // NOTE that since there is no "lock" around these two operations, | |
| 4223 // there is the possibility that the interrupted flag will be | |
| 4224 // "false" but that the interrupt event will be set. This is | |
| 4225 // intentional. The effect of this is that Object.wait() will appear | |
| 4226 // to have a spurious wakeup, which is not harmful, and the | |
| 4227 // possibility is so rare that it is not worth the added complexity | |
| 4228 // to add yet another lock. It has also been recommended not to put | |
| 4229 // the interrupted flag into the os::Solaris::Event structure, | |
| 4230 // because it hides the issue. | |
| 4231 if (res && clear_interrupted) { | |
| 4232 osthread->set_interrupted(false); | |
| 4233 } | |
| 4234 return res; | |
| 4235 } | |
| 4236 | |
| 4237 | |
| 4238 void os::print_statistics() { | |
| 4239 } | |
| 4240 | |
| 4241 int os::message_box(const char* title, const char* message) { | |
| 4242 int i; | |
| 4243 fdStream err(defaultStream::error_fd()); | |
| 4244 for (i = 0; i < 78; i++) err.print_raw("="); | |
| 4245 err.cr(); | |
| 4246 err.print_raw_cr(title); | |
| 4247 for (i = 0; i < 78; i++) err.print_raw("-"); | |
| 4248 err.cr(); | |
| 4249 err.print_raw_cr(message); | |
| 4250 for (i = 0; i < 78; i++) err.print_raw("="); | |
| 4251 err.cr(); | |
| 4252 | |
| 4253 char buf[16]; | |
| 4254 // Prevent process from exiting upon "read error" without consuming all CPU | |
| 4255 while (::read(0, buf, sizeof(buf)) <= 0) { ::sleep(100); } | |
| 4256 | |
| 4257 return buf[0] == 'y' || buf[0] == 'Y'; | |
| 4258 } | |
| 4259 | |
| 10405 | 4260 static int sr_notify(OSThread* osthread) { |
| 4261 int status = thr_kill(osthread->thread_id(), os::Solaris::SIGasync()); | |
| 4262 assert_status(status == 0, status, "thr_kill"); | |
| 4263 return status; | |
| 4264 } | |
| 4265 | |
| 4266 // "Randomly" selected value for how long we want to spin | |
| 4267 // before bailing out on suspending a thread, also how often | |
| 4268 // we send a signal to a thread we want to resume | |
| 4269 static const int RANDOMLY_LARGE_INTEGER = 1000000; | |
| 4270 static const int RANDOMLY_LARGE_INTEGER2 = 100; | |
| 4271 | |
| 4272 static bool do_suspend(OSThread* osthread) { | |
| 4273 assert(osthread->sr.is_running(), "thread should be running"); | |
| 4274 assert(!sr_semaphore.trywait(), "semaphore has invalid state"); | |
| 4275 | |
| 4276 // mark as suspended and send signal | |
| 4277 if (osthread->sr.request_suspend() != os::SuspendResume::SR_SUSPEND_REQUEST) { | |
| 4278 // failed to switch, state wasn't running? | |
| 4279 ShouldNotReachHere(); | |
| 4280 return false; | |
| 4281 } | |
| 4282 | |
| 4283 if (sr_notify(osthread) != 0) { | |
| 4284 ShouldNotReachHere(); | |
| 4285 } | |
| 4286 | |
| 4287 // managed to send the signal and switch to SUSPEND_REQUEST, now wait for SUSPENDED | |
| 4288 while (true) { | |
| 4289 if (sr_semaphore.timedwait(0, 2000 * NANOSECS_PER_MILLISEC)) { | |
| 4290 break; | |
| 4291 } else { | |
| 4292 // timeout | |
| 4293 os::SuspendResume::State cancelled = osthread->sr.cancel_suspend(); | |
| 4294 if (cancelled == os::SuspendResume::SR_RUNNING) { | |
| 4295 return false; | |
| 4296 } else if (cancelled == os::SuspendResume::SR_SUSPENDED) { | |
| 4297 // make sure that we consume the signal on the semaphore as well | |
| 4298 sr_semaphore.wait(); | |
| 4299 break; | |
| 4300 } else { | |
| 4301 ShouldNotReachHere(); | |
| 4302 return false; | |
| 4303 } | |
| 4304 } | |
| 4305 } | |
| 4306 | |
| 4307 guarantee(osthread->sr.is_suspended(), "Must be suspended"); | |
| 4308 return true; | |
| 4309 } | |
| 4310 | |
| 4311 static void do_resume(OSThread* osthread) { | |
| 4312 assert(osthread->sr.is_suspended(), "thread should be suspended"); | |
| 4313 assert(!sr_semaphore.trywait(), "invalid semaphore state"); | |
| 4314 | |
| 4315 if (osthread->sr.request_wakeup() != os::SuspendResume::SR_WAKEUP_REQUEST) { | |
| 4316 // failed to switch to WAKEUP_REQUEST | |
| 4317 ShouldNotReachHere(); | |
| 4318 return; | |
| 4319 } | |
| 4320 | |
| 4321 while (true) { | |
| 4322 if (sr_notify(osthread) == 0) { | |
| 4323 if (sr_semaphore.timedwait(0, 2 * NANOSECS_PER_MILLISEC)) { | |
| 4324 if (osthread->sr.is_running()) { | |
| 4325 return; | |
| 4326 } | |
| 4327 } | |
| 4328 } else { | |
| 4329 ShouldNotReachHere(); | |
| 4330 } | |
| 4331 } | |
| 4332 | |
| 4333 guarantee(osthread->sr.is_running(), "Must be running!"); | |
| 4334 } | |
| 4335 | |
| 4336 void os::SuspendedThreadTask::internal_do_task() { | |
| 4337 if (do_suspend(_thread->osthread())) { | |
| 4338 SuspendedThreadTaskContext context(_thread, _thread->osthread()->ucontext()); | |
| 4339 do_task(context); | |
| 4340 do_resume(_thread->osthread()); | |
| 4341 } | |
| 4342 } | |
| 4343 | |
| 4344 class PcFetcher : public os::SuspendedThreadTask { | |
| 4345 public: | |
| 4346 PcFetcher(Thread* thread) : os::SuspendedThreadTask(thread) {} | |
| 4347 ExtendedPC result(); | |
| 4348 protected: | |
| 4349 void do_task(const os::SuspendedThreadTaskContext& context); | |
| 4350 private: | |
| 4351 ExtendedPC _epc; | |
| 4352 }; | |
| 4353 | |
| 4354 ExtendedPC PcFetcher::result() { | |
| 4355 guarantee(is_done(), "task is not done yet."); | |
| 4356 return _epc; | |
| 4357 } | |
| 4358 | |
| 4359 void PcFetcher::do_task(const os::SuspendedThreadTaskContext& context) { | |
| 4360 Thread* thread = context.thread(); | |
| 4361 OSThread* osthread = thread->osthread(); | |
| 4362 if (osthread->ucontext() != NULL) { | |
| 4363 _epc = os::Solaris::ucontext_get_pc((ucontext_t *) context.ucontext()); | |
| 4364 } else { | |
| 4365 // NULL context is unexpected, double-check this is the VMThread | |
| 4366 guarantee(thread->is_VM_thread(), "can only be called for VMThread"); | |
| 4367 } | |
| 4368 } | |
| 4369 | |
| 0 | 4370 // A lightweight implementation that does not suspend the target thread and |
| 4371 // thus returns only a hint. Used for profiling only! | |
| 4372 ExtendedPC os::get_thread_pc(Thread* thread) { | |
| 4373 // Make sure that it is called by the watcher and the Threads lock is owned. | |
| 4374 assert(Thread::current()->is_Watcher_thread(), "Must be watcher and own Threads_lock"); | |
| 4375 // For now, is only used to profile the VM Thread | |
| 4376 assert(thread->is_VM_thread(), "Can only be called for VMThread"); | |
| 10405 | 4377 PcFetcher fetcher(thread); |
| 4378 fetcher.run(); | |
| 4379 return fetcher.result(); | |
| 0 | 4380 } |
| 4381 | |
| 4382 | |
| 4383 // This does not do anything on Solaris. This is basically a hook for being | |
| 4384 // able to use structured exception handling (thread-local exception filters) on, e.g., Win32. | |
| 4385 void os::os_exception_wrapper(java_call_t f, JavaValue* value, methodHandle* method, JavaCallArguments* args, Thread* thread) { | |
| 4386 f(value, method, args, thread); | |
| 4387 } | |
| 4388 | |
| 4389 // This routine may be used by user applications as a "hook" to catch signals. | |
| 4390 // The user-defined signal handler must pass unrecognized signals to this | |
| 4391 // routine, and if it returns true (non-zero), then the signal handler must | |
| 4392 // return immediately. If the flag "abort_if_unrecognized" is true, then this | |
| 4393 // routine will never retun false (zero), but instead will execute a VM panic | |
| 4394 // routine kill the process. | |
| 4395 // | |
| 4396 // If this routine returns false, it is OK to call it again. This allows | |
| 4397 // the user-defined signal handler to perform checks either before or after | |
| 4398 // the VM performs its own checks. Naturally, the user code would be making | |
| 4399 // a serious error if it tried to handle an exception (such as a null check | |
| 4400 // or breakpoint) that the VM was generating for its own correct operation. | |
| 4401 // | |
| 4402 // This routine may recognize any of the following kinds of signals: | |
| 4403 // SIGBUS, SIGSEGV, SIGILL, SIGFPE, BREAK_SIGNAL, SIGPIPE, SIGXFSZ, | |
| 4404 // os::Solaris::SIGasync | |
| 4405 // It should be consulted by handlers for any of those signals. | |
| 4406 // It explicitly does not recognize os::Solaris::SIGinterrupt | |
| 4407 // | |
| 4408 // The caller of this routine must pass in the three arguments supplied | |
| 4409 // to the function referred to in the "sa_sigaction" (not the "sa_handler") | |
| 4410 // field of the structure passed to sigaction(). This routine assumes that | |
| 4411 // the sa_flags field passed to sigaction() includes SA_SIGINFO and SA_RESTART. | |
| 4412 // | |
| 4413 // Note that the VM will print warnings if it detects conflicting signal | |
| 4414 // handlers, unless invoked with the option "-XX:+AllowUserSignalHandlers". | |
| 4415 // | |
| 2191 | 4416 extern "C" JNIEXPORT int |
| 4417 JVM_handle_solaris_signal(int signo, siginfo_t* siginfo, void* ucontext, | |
| 4418 int abort_if_unrecognized); | |
| 0 | 4419 |
| 4420 | |
| 4421 void signalHandler(int sig, siginfo_t* info, void* ucVoid) { | |
| 8067 | 4422 int orig_errno = errno; // Preserve errno value over signal handler. |
| 0 | 4423 JVM_handle_solaris_signal(sig, info, ucVoid, true); |
| 8067 | 4424 errno = orig_errno; |
| 0 | 4425 } |
| 4426 | |
| 4427 /* Do not delete - if guarantee is ever removed, a signal handler (even empty) | |
| 4428 is needed to provoke threads blocked on IO to return an EINTR | |
| 4429 Note: this explicitly does NOT call JVM_handle_solaris_signal and | |
| 4430 does NOT participate in signal chaining due to requirement for | |
| 4431 NOT setting SA_RESTART to make EINTR work. */ | |
| 4432 extern "C" void sigINTRHandler(int sig, siginfo_t* info, void* ucVoid) { | |
| 4433 if (UseSignalChaining) { | |
| 4434 struct sigaction *actp = os::Solaris::get_chained_signal_action(sig); | |
| 4435 if (actp && actp->sa_handler) { | |
| 4436 vm_exit_during_initialization("Signal chaining detected for VM interrupt signal, try -XX:+UseAltSigs"); | |
| 4437 } | |
| 4438 } | |
| 4439 } | |
| 4440 | |
| 4441 // This boolean allows users to forward their own non-matching signals | |
| 4442 // to JVM_handle_solaris_signal, harmlessly. | |
| 4443 bool os::Solaris::signal_handlers_are_installed = false; | |
| 4444 | |
| 4445 // For signal-chaining | |
| 4446 bool os::Solaris::libjsig_is_loaded = false; | |
| 4447 typedef struct sigaction *(*get_signal_t)(int); | |
| 4448 get_signal_t os::Solaris::get_signal_action = NULL; | |
| 4449 | |
| 4450 struct sigaction* os::Solaris::get_chained_signal_action(int sig) { | |
| 4451 struct sigaction *actp = NULL; | |
| 4452 | |
| 4453 if ((libjsig_is_loaded) && (sig <= Maxlibjsigsigs)) { | |
| 4454 // Retrieve the old signal handler from libjsig | |
| 4455 actp = (*get_signal_action)(sig); | |
| 4456 } | |
| 4457 if (actp == NULL) { | |
| 4458 // Retrieve the preinstalled signal handler from jvm | |
| 4459 actp = get_preinstalled_handler(sig); | |
| 4460 } | |
| 4461 | |
| 4462 return actp; | |
| 4463 } | |
| 4464 | |
| 4465 static bool call_chained_handler(struct sigaction *actp, int sig, | |
| 4466 siginfo_t *siginfo, void *context) { | |
| 4467 // Call the old signal handler | |
| 4468 if (actp->sa_handler == SIG_DFL) { | |
| 4469 // It's more reasonable to let jvm treat it as an unexpected exception | |
| 4470 // instead of taking the default action. | |
| 4471 return false; | |
| 4472 } else if (actp->sa_handler != SIG_IGN) { | |
| 4473 if ((actp->sa_flags & SA_NODEFER) == 0) { | |
| 4474 // automaticlly block the signal | |
| 4475 sigaddset(&(actp->sa_mask), sig); | |
| 4476 } | |
| 4477 | |
| 4478 sa_handler_t hand; | |
| 4479 sa_sigaction_t sa; | |
| 4480 bool siginfo_flag_set = (actp->sa_flags & SA_SIGINFO) != 0; | |
| 4481 // retrieve the chained handler | |
| 4482 if (siginfo_flag_set) { | |
| 4483 sa = actp->sa_sigaction; | |
| 4484 } else { | |
| 4485 hand = actp->sa_handler; | |
| 4486 } | |
| 4487 | |
| 4488 if ((actp->sa_flags & SA_RESETHAND) != 0) { | |
| 4489 actp->sa_handler = SIG_DFL; | |
| 4490 } | |
| 4491 | |
| 4492 // try to honor the signal mask | |
| 4493 sigset_t oset; | |
| 4494 thr_sigsetmask(SIG_SETMASK, &(actp->sa_mask), &oset); | |
| 4495 | |
| 4496 // call into the chained handler | |
| 4497 if (siginfo_flag_set) { | |
| 4498 (*sa)(sig, siginfo, context); | |
| 4499 } else { | |
| 4500 (*hand)(sig); | |
| 4501 } | |
| 4502 | |
| 4503 // restore the signal mask | |
| 4504 thr_sigsetmask(SIG_SETMASK, &oset, 0); | |
| 4505 } | |
| 4506 // Tell jvm's signal handler the signal is taken care of. | |
| 4507 return true; | |
| 4508 } | |
| 4509 | |
| 4510 bool os::Solaris::chained_handler(int sig, siginfo_t* siginfo, void* context) { | |
| 4511 bool chained = false; | |
| 4512 // signal-chaining | |
| 4513 if (UseSignalChaining) { | |
| 4514 struct sigaction *actp = get_chained_signal_action(sig); | |
| 4515 if (actp != NULL) { | |
| 4516 chained = call_chained_handler(actp, sig, siginfo, context); | |
| 4517 } | |
| 4518 } | |
| 4519 return chained; | |
| 4520 } | |
| 4521 | |
| 4522 struct sigaction* os::Solaris::get_preinstalled_handler(int sig) { | |
| 4523 assert((chainedsigactions != (struct sigaction *)NULL) && (preinstalled_sigs != (int *)NULL) , "signals not yet initialized"); | |
| 4524 if (preinstalled_sigs[sig] != 0) { | |
| 4525 return &chainedsigactions[sig]; | |
| 4526 } | |
| 4527 return NULL; | |
| 4528 } | |
| 4529 | |
| 4530 void os::Solaris::save_preinstalled_handler(int sig, struct sigaction& oldAct) { | |
| 4531 | |
| 4532 assert(sig > 0 && sig <= Maxsignum, "vm signal out of expected range"); | |
| 4533 assert((chainedsigactions != (struct sigaction *)NULL) && (preinstalled_sigs != (int *)NULL) , "signals not yet initialized"); | |
| 4534 chainedsigactions[sig] = oldAct; | |
| 4535 preinstalled_sigs[sig] = 1; | |
| 4536 } | |
| 4537 | |
| 4538 void os::Solaris::set_signal_handler(int sig, bool set_installed, bool oktochain) { | |
| 4539 // Check for overwrite. | |
| 4540 struct sigaction oldAct; | |
| 4541 sigaction(sig, (struct sigaction*)NULL, &oldAct); | |
| 4542 void* oldhand = oldAct.sa_sigaction ? CAST_FROM_FN_PTR(void*, oldAct.sa_sigaction) | |
| 4543 : CAST_FROM_FN_PTR(void*, oldAct.sa_handler); | |
| 4544 if (oldhand != CAST_FROM_FN_PTR(void*, SIG_DFL) && | |
| 4545 oldhand != CAST_FROM_FN_PTR(void*, SIG_IGN) && | |
| 4546 oldhand != CAST_FROM_FN_PTR(void*, signalHandler)) { | |
| 4547 if (AllowUserSignalHandlers || !set_installed) { | |
| 4548 // Do not overwrite; user takes responsibility to forward to us. | |
| 4549 return; | |
| 4550 } else if (UseSignalChaining) { | |
| 4551 if (oktochain) { | |
| 4552 // save the old handler in jvm | |
| 4553 save_preinstalled_handler(sig, oldAct); | |
| 4554 } else { | |
| 4555 vm_exit_during_initialization("Signal chaining not allowed for VM interrupt signal, try -XX:+UseAltSigs."); | |
| 4556 } | |
| 4557 // libjsig also interposes the sigaction() call below and saves the | |
| 4558 // old sigaction on it own. | |
| 4559 } else { | |
|
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|
4560 fatal(err_msg("Encountered unexpected pre-existing sigaction handler " |
|
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|
4561 "%#lx for signal %d.", (long)oldhand, sig)); |
| 0 | 4562 } |
| 4563 } | |
| 4564 | |
| 4565 struct sigaction sigAct; | |
| 4566 sigfillset(&(sigAct.sa_mask)); | |
| 4567 sigAct.sa_handler = SIG_DFL; | |
| 4568 | |
| 4569 sigAct.sa_sigaction = signalHandler; | |
| 4570 // Handle SIGSEGV on alternate signal stack if | |
| 4571 // not using stack banging | |
| 4572 if (!UseStackBanging && sig == SIGSEGV) { | |
| 4573 sigAct.sa_flags = SA_SIGINFO | SA_RESTART | SA_ONSTACK; | |
| 4574 // Interruptible i/o requires SA_RESTART cleared so EINTR | |
| 4575 // is returned instead of restarting system calls | |
| 4576 } else if (sig == os::Solaris::SIGinterrupt()) { | |
| 4577 sigemptyset(&sigAct.sa_mask); | |
| 4578 sigAct.sa_handler = NULL; | |
| 4579 sigAct.sa_flags = SA_SIGINFO; | |
| 4580 sigAct.sa_sigaction = sigINTRHandler; | |
| 4581 } else { | |
| 4582 sigAct.sa_flags = SA_SIGINFO | SA_RESTART; | |
| 4583 } | |
| 4584 os::Solaris::set_our_sigflags(sig, sigAct.sa_flags); | |
| 4585 | |
| 4586 sigaction(sig, &sigAct, &oldAct); | |
| 4587 | |
| 4588 void* oldhand2 = oldAct.sa_sigaction ? CAST_FROM_FN_PTR(void*, oldAct.sa_sigaction) | |
| 4589 : CAST_FROM_FN_PTR(void*, oldAct.sa_handler); | |
| 4590 assert(oldhand2 == oldhand, "no concurrent signal handler installation"); | |
| 4591 } | |
| 4592 | |
| 4593 | |
| 4594 #define DO_SIGNAL_CHECK(sig) \ | |
| 4595 if (!sigismember(&check_signal_done, sig)) \ | |
| 4596 os::Solaris::check_signal_handler(sig) | |
| 4597 | |
| 4598 // This method is a periodic task to check for misbehaving JNI applications | |
| 4599 // under CheckJNI, we can add any periodic checks here | |
| 4600 | |
| 4601 void os::run_periodic_checks() { | |
| 4602 // A big source of grief is hijacking virt. addr 0x0 on Solaris, | |
| 4603 // thereby preventing a NULL checks. | |
| 4604 if(!check_addr0_done) check_addr0_done = check_addr0(tty); | |
| 4605 | |
| 4606 if (check_signals == false) return; | |
| 4607 | |
| 4608 // SEGV and BUS if overridden could potentially prevent | |
| 4609 // generation of hs*.log in the event of a crash, debugging | |
| 4610 // such a case can be very challenging, so we absolutely | |
| 4611 // check for the following for a good measure: | |
| 4612 DO_SIGNAL_CHECK(SIGSEGV); | |
| 4613 DO_SIGNAL_CHECK(SIGILL); | |
| 4614 DO_SIGNAL_CHECK(SIGFPE); | |
| 4615 DO_SIGNAL_CHECK(SIGBUS); | |
| 4616 DO_SIGNAL_CHECK(SIGPIPE); | |
| 4617 DO_SIGNAL_CHECK(SIGXFSZ); | |
| 4618 | |
| 4619 // ReduceSignalUsage allows the user to override these handlers | |
| 4620 // see comments at the very top and jvm_solaris.h | |
| 4621 if (!ReduceSignalUsage) { | |
| 4622 DO_SIGNAL_CHECK(SHUTDOWN1_SIGNAL); | |
| 4623 DO_SIGNAL_CHECK(SHUTDOWN2_SIGNAL); | |
| 4624 DO_SIGNAL_CHECK(SHUTDOWN3_SIGNAL); | |
| 4625 DO_SIGNAL_CHECK(BREAK_SIGNAL); | |
| 4626 } | |
| 4627 | |
| 4628 // See comments above for using JVM1/JVM2 and UseAltSigs | |
| 4629 DO_SIGNAL_CHECK(os::Solaris::SIGinterrupt()); | |
| 4630 DO_SIGNAL_CHECK(os::Solaris::SIGasync()); | |
| 4631 | |
| 4632 } | |
| 4633 | |
| 4634 typedef int (*os_sigaction_t)(int, const struct sigaction *, struct sigaction *); | |
| 4635 | |
| 4636 static os_sigaction_t os_sigaction = NULL; | |
| 4637 | |
| 4638 void os::Solaris::check_signal_handler(int sig) { | |
| 4639 char buf[O_BUFLEN]; | |
| 4640 address jvmHandler = NULL; | |
| 4641 | |
| 4642 struct sigaction act; | |
| 4643 if (os_sigaction == NULL) { | |
| 4644 // only trust the default sigaction, in case it has been interposed | |
| 4645 os_sigaction = (os_sigaction_t)dlsym(RTLD_DEFAULT, "sigaction"); | |
| 4646 if (os_sigaction == NULL) return; | |
| 4647 } | |
| 4648 | |
| 4649 os_sigaction(sig, (struct sigaction*)NULL, &act); | |
| 4650 | |
| 4651 address thisHandler = (act.sa_flags & SA_SIGINFO) | |
| 4652 ? CAST_FROM_FN_PTR(address, act.sa_sigaction) | |
| 4653 : CAST_FROM_FN_PTR(address, act.sa_handler) ; | |
| 4654 | |
| 4655 | |
| 4656 switch(sig) { | |
| 4657 case SIGSEGV: | |
| 4658 case SIGBUS: | |
| 4659 case SIGFPE: | |
| 4660 case SIGPIPE: | |
| 4661 case SIGXFSZ: | |
| 4662 case SIGILL: | |
| 4663 jvmHandler = CAST_FROM_FN_PTR(address, signalHandler); | |
| 4664 break; | |
| 4665 | |
| 4666 case SHUTDOWN1_SIGNAL: | |
| 4667 case SHUTDOWN2_SIGNAL: | |
| 4668 case SHUTDOWN3_SIGNAL: | |
| 4669 case BREAK_SIGNAL: | |
| 4670 jvmHandler = (address)user_handler(); | |
| 4671 break; | |
| 4672 | |
| 4673 default: | |
| 4674 int intrsig = os::Solaris::SIGinterrupt(); | |
| 4675 int asynsig = os::Solaris::SIGasync(); | |
| 4676 | |
| 4677 if (sig == intrsig) { | |
| 4678 jvmHandler = CAST_FROM_FN_PTR(address, sigINTRHandler); | |
| 4679 } else if (sig == asynsig) { | |
| 4680 jvmHandler = CAST_FROM_FN_PTR(address, signalHandler); | |
| 4681 } else { | |
| 4682 return; | |
| 4683 } | |
| 4684 break; | |
| 4685 } | |
| 4686 | |
| 4687 | |
| 4688 if (thisHandler != jvmHandler) { | |
| 4689 tty->print("Warning: %s handler ", exception_name(sig, buf, O_BUFLEN)); | |
| 4690 tty->print("expected:%s", get_signal_handler_name(jvmHandler, buf, O_BUFLEN)); | |
| 4691 tty->print_cr(" found:%s", get_signal_handler_name(thisHandler, buf, O_BUFLEN)); | |
| 4692 // No need to check this sig any longer | |
| 4693 sigaddset(&check_signal_done, sig); | |
| 4694 } else if(os::Solaris::get_our_sigflags(sig) != 0 && act.sa_flags != os::Solaris::get_our_sigflags(sig)) { | |
| 4695 tty->print("Warning: %s handler flags ", exception_name(sig, buf, O_BUFLEN)); | |
| 4696 tty->print("expected:" PTR32_FORMAT, os::Solaris::get_our_sigflags(sig)); | |
| 4697 tty->print_cr(" found:" PTR32_FORMAT, act.sa_flags); | |
| 4698 // No need to check this sig any longer | |
| 4699 sigaddset(&check_signal_done, sig); | |
| 4700 } | |
| 4701 | |
| 4702 // Print all the signal handler state | |
| 4703 if (sigismember(&check_signal_done, sig)) { | |
| 4704 print_signal_handlers(tty, buf, O_BUFLEN); | |
| 4705 } | |
| 4706 | |
| 4707 } | |
| 4708 | |
| 4709 void os::Solaris::install_signal_handlers() { | |
| 4710 bool libjsigdone = false; | |
| 4711 signal_handlers_are_installed = true; | |
| 4712 | |
| 4713 // signal-chaining | |
| 4714 typedef void (*signal_setting_t)(); | |
| 4715 signal_setting_t begin_signal_setting = NULL; | |
| 4716 signal_setting_t end_signal_setting = NULL; | |
| 4717 begin_signal_setting = CAST_TO_FN_PTR(signal_setting_t, | |
| 4718 dlsym(RTLD_DEFAULT, "JVM_begin_signal_setting")); | |
| 4719 if (begin_signal_setting != NULL) { | |
| 4720 end_signal_setting = CAST_TO_FN_PTR(signal_setting_t, | |
| 4721 dlsym(RTLD_DEFAULT, "JVM_end_signal_setting")); | |
| 4722 get_signal_action = CAST_TO_FN_PTR(get_signal_t, | |
| 4723 dlsym(RTLD_DEFAULT, "JVM_get_signal_action")); | |
| 4724 get_libjsig_version = CAST_TO_FN_PTR(version_getting_t, | |
| 4725 dlsym(RTLD_DEFAULT, "JVM_get_libjsig_version")); | |
| 4726 libjsig_is_loaded = true; | |
| 4727 if (os::Solaris::get_libjsig_version != NULL) { | |
| 4728 libjsigversion = (*os::Solaris::get_libjsig_version)(); | |
| 4729 } | |
| 4730 assert(UseSignalChaining, "should enable signal-chaining"); | |
| 4731 } | |
| 4732 if (libjsig_is_loaded) { | |
| 4733 // Tell libjsig jvm is setting signal handlers | |
| 4734 (*begin_signal_setting)(); | |
| 4735 } | |
| 4736 | |
| 4737 set_signal_handler(SIGSEGV, true, true); | |
| 4738 set_signal_handler(SIGPIPE, true, true); | |
| 4739 set_signal_handler(SIGXFSZ, true, true); | |
| 4740 set_signal_handler(SIGBUS, true, true); | |
| 4741 set_signal_handler(SIGILL, true, true); | |
| 4742 set_signal_handler(SIGFPE, true, true); | |
| 4743 | |
| 4744 | |
| 4745 if (os::Solaris::SIGinterrupt() > OLDMAXSIGNUM || os::Solaris::SIGasync() > OLDMAXSIGNUM) { | |
| 4746 | |
| 4747 // Pre-1.4.1 Libjsig limited to signal chaining signals <= 32 so | |
| 4748 // can not register overridable signals which might be > 32 | |
| 4749 if (libjsig_is_loaded && libjsigversion <= JSIG_VERSION_1_4_1) { | |
| 4750 // Tell libjsig jvm has finished setting signal handlers | |
| 4751 (*end_signal_setting)(); | |
| 4752 libjsigdone = true; | |
| 4753 } | |
| 4754 } | |
| 4755 | |
| 4756 // Never ok to chain our SIGinterrupt | |
| 4757 set_signal_handler(os::Solaris::SIGinterrupt(), true, false); | |
| 4758 set_signal_handler(os::Solaris::SIGasync(), true, true); | |
| 4759 | |
| 4760 if (libjsig_is_loaded && !libjsigdone) { | |
| 4761 // Tell libjsig jvm finishes setting signal handlers | |
| 4762 (*end_signal_setting)(); | |
| 4763 } | |
| 4764 | |
| 4765 // We don't activate signal checker if libjsig is in place, we trust ourselves | |
|
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4766 // and if UserSignalHandler is installed all bets are off. |
|
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|
4767 // Log that signal checking is off only if -verbose:jni is specified. |
| 0 | 4768 if (CheckJNICalls) { |
| 4769 if (libjsig_is_loaded) { | |
|
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|
4770 if (PrintJNIResolving) { |
|
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|
4771 tty->print_cr("Info: libjsig is activated, all active signal checking is disabled"); |
|
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|
4772 } |
| 0 | 4773 check_signals = false; |
| 4774 } | |
| 4775 if (AllowUserSignalHandlers) { | |
|
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|
4776 if (PrintJNIResolving) { |
|
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|
4777 tty->print_cr("Info: AllowUserSignalHandlers is activated, all active signal checking is disabled"); |
|
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|
4778 } |
| 0 | 4779 check_signals = false; |
| 4780 } | |
| 4781 } | |
| 4782 } | |
| 4783 | |
| 4784 | |
| 4785 void report_error(const char* file_name, int line_no, const char* title, const char* format, ...); | |
| 4786 | |
| 4787 const char * signames[] = { | |
| 4788 "SIG0", | |
| 4789 "SIGHUP", "SIGINT", "SIGQUIT", "SIGILL", "SIGTRAP", | |
| 4790 "SIGABRT", "SIGEMT", "SIGFPE", "SIGKILL", "SIGBUS", | |
| 4791 "SIGSEGV", "SIGSYS", "SIGPIPE", "SIGALRM", "SIGTERM", | |
| 4792 "SIGUSR1", "SIGUSR2", "SIGCLD", "SIGPWR", "SIGWINCH", | |
| 4793 "SIGURG", "SIGPOLL", "SIGSTOP", "SIGTSTP", "SIGCONT", | |
| 4794 "SIGTTIN", "SIGTTOU", "SIGVTALRM", "SIGPROF", "SIGXCPU", | |
| 4795 "SIGXFSZ", "SIGWAITING", "SIGLWP", "SIGFREEZE", "SIGTHAW", | |
| 4796 "SIGCANCEL", "SIGLOST" | |
| 4797 }; | |
| 4798 | |
| 4799 const char* os::exception_name(int exception_code, char* buf, size_t size) { | |
| 4800 if (0 < exception_code && exception_code <= SIGRTMAX) { | |
| 4801 // signal | |
| 4802 if (exception_code < sizeof(signames)/sizeof(const char*)) { | |
| 4803 jio_snprintf(buf, size, "%s", signames[exception_code]); | |
| 4804 } else { | |
| 4805 jio_snprintf(buf, size, "SIG%d", exception_code); | |
| 4806 } | |
| 4807 return buf; | |
| 4808 } else { | |
| 4809 return NULL; | |
| 4810 } | |
| 4811 } | |
| 4812 | |
| 4813 // (Static) wrappers for the new libthread API | |
| 4814 int_fnP_thread_t_iP_uP_stack_tP_gregset_t os::Solaris::_thr_getstate; | |
| 4815 int_fnP_thread_t_i_gregset_t os::Solaris::_thr_setstate; | |
| 4816 int_fnP_thread_t_i os::Solaris::_thr_setmutator; | |
| 4817 int_fnP_thread_t os::Solaris::_thr_suspend_mutator; | |
| 4818 int_fnP_thread_t os::Solaris::_thr_continue_mutator; | |
| 4819 | |
|
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4820 // (Static) wrapper for getisax(2) call. |
|
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4821 os::Solaris::getisax_func_t os::Solaris::_getisax = 0; |
|
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|
4822 |
| 0 | 4823 // (Static) wrappers for the liblgrp API |
| 4824 os::Solaris::lgrp_home_func_t os::Solaris::_lgrp_home; | |
| 4825 os::Solaris::lgrp_init_func_t os::Solaris::_lgrp_init; | |
| 4826 os::Solaris::lgrp_fini_func_t os::Solaris::_lgrp_fini; | |
| 4827 os::Solaris::lgrp_root_func_t os::Solaris::_lgrp_root; | |
| 4828 os::Solaris::lgrp_children_func_t os::Solaris::_lgrp_children; | |
|
144
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
4829 os::Solaris::lgrp_resources_func_t os::Solaris::_lgrp_resources; |
| 0 | 4830 os::Solaris::lgrp_nlgrps_func_t os::Solaris::_lgrp_nlgrps; |
| 4831 os::Solaris::lgrp_cookie_stale_func_t os::Solaris::_lgrp_cookie_stale; | |
| 4832 os::Solaris::lgrp_cookie_t os::Solaris::_lgrp_cookie = 0; | |
| 4833 | |
| 4834 // (Static) wrapper for meminfo() call. | |
| 4835 os::Solaris::meminfo_func_t os::Solaris::_meminfo = 0; | |
| 4836 | |
|
641
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4837 static address resolve_symbol_lazy(const char* name) { |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4838 address addr = (address) dlsym(RTLD_DEFAULT, name); |
| 0 | 4839 if(addr == NULL) { |
| 4840 // RTLD_DEFAULT was not defined on some early versions of 2.5.1 | |
| 4841 addr = (address) dlsym(RTLD_NEXT, name); | |
|
641
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4842 } |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4843 return addr; |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4844 } |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4845 |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4846 static address resolve_symbol(const char* name) { |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4847 address addr = resolve_symbol_lazy(name); |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4848 if(addr == NULL) { |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4849 fatal(dlerror()); |
| 0 | 4850 } |
| 4851 return addr; | |
| 4852 } | |
| 4853 | |
| 4854 | |
| 4855 | |
| 4856 // isT2_libthread() | |
| 4857 // | |
| 4858 // Routine to determine if we are currently using the new T2 libthread. | |
| 4859 // | |
| 4860 // We determine if we are using T2 by reading /proc/self/lstatus and | |
| 4861 // looking for a thread with the ASLWP bit set. If we find this status | |
| 4862 // bit set, we must assume that we are NOT using T2. The T2 team | |
| 4863 // has approved this algorithm. | |
| 4864 // | |
| 4865 // We need to determine if we are running with the new T2 libthread | |
| 4866 // since setting native thread priorities is handled differently | |
| 4867 // when using this library. All threads created using T2 are bound | |
| 4868 // threads. Calling thr_setprio is meaningless in this case. | |
| 4869 // | |
| 4870 bool isT2_libthread() { | |
| 4871 static prheader_t * lwpArray = NULL; | |
| 4872 static int lwpSize = 0; | |
| 4873 static int lwpFile = -1; | |
| 4874 lwpstatus_t * that; | |
| 4875 char lwpName [128]; | |
| 4876 bool isT2 = false; | |
| 4877 | |
| 4878 #define ADR(x) ((uintptr_t)(x)) | |
| 4879 #define LWPINDEX(ary,ix) ((lwpstatus_t *)(((ary)->pr_entsize * (ix)) + (ADR((ary) + 1)))) | |
| 4880 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4881 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
|
4882 if (lwpFile < 0) { |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4883 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
|
4884 return false; |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4885 } |
| 0 | 4886 lwpSize = 16*1024; |
| 4887 for (;;) { | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4888 ::lseek64 (lwpFile, 0, SEEK_SET); |
| 6197 | 4889 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
|
4890 if (::read(lwpFile, lwpArray, lwpSize) < 0) { |
|
89
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4891 if (ThreadPriorityVerbose) warning("Error reading /proc/self/lstatus\n"); |
| 0 | 4892 break; |
| 4893 } | |
|
89
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4894 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
|
4895 // 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
|
4896 int aslwpcount = 0; |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4897 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
|
4898 that = LWPINDEX(lwpArray,i); |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4899 if (that->pr_flags & PR_ASLWP) { |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4900 aslwpcount++; |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4901 } |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4902 } |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4903 if (aslwpcount == 0) isT2 = true; |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4904 break; |
| 0 | 4905 } |
|
89
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4906 lwpSize = lwpArray->pr_nent * lwpArray->pr_entsize; |
| 6197 | 4907 FREE_C_HEAP_ARRAY(char, lwpArray, mtInternal); // retry. |
| 4908 } | |
| 4909 | |
| 4910 FREE_C_HEAP_ARRAY(char, lwpArray, mtInternal); | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4911 ::close (lwpFile); |
|
89
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4912 if (ThreadPriorityVerbose) { |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4913 if (isT2) tty->print_cr("We are running with a T2 libthread\n"); |
| 0 | 4914 else tty->print_cr("We are not running with a T2 libthread\n"); |
| 4915 } | |
|
89
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4916 return isT2; |
| 0 | 4917 } |
| 4918 | |
| 4919 | |
| 4920 void os::Solaris::libthread_init() { | |
| 4921 address func = (address)dlsym(RTLD_DEFAULT, "_thr_suspend_allmutators"); | |
| 4922 | |
| 4923 // Determine if we are running with the new T2 libthread | |
| 4924 os::Solaris::set_T2_libthread(isT2_libthread()); | |
| 4925 | |
| 4926 lwp_priocntl_init(); | |
| 4927 | |
| 4928 // RTLD_DEFAULT was not defined on some early versions of 5.5.1 | |
| 4929 if(func == NULL) { | |
| 4930 func = (address) dlsym(RTLD_NEXT, "_thr_suspend_allmutators"); | |
| 4931 // Guarantee that this VM is running on an new enough OS (5.6 or | |
| 4932 // later) that it will have a new enough libthread.so. | |
| 4933 guarantee(func != NULL, "libthread.so is too old."); | |
| 4934 } | |
| 4935 | |
| 4936 // Initialize the new libthread getstate API wrappers | |
| 4937 func = resolve_symbol("thr_getstate"); | |
| 4938 os::Solaris::set_thr_getstate(CAST_TO_FN_PTR(int_fnP_thread_t_iP_uP_stack_tP_gregset_t, func)); | |
| 4939 | |
| 4940 func = resolve_symbol("thr_setstate"); | |
| 4941 os::Solaris::set_thr_setstate(CAST_TO_FN_PTR(int_fnP_thread_t_i_gregset_t, func)); | |
| 4942 | |
| 4943 func = resolve_symbol("thr_setmutator"); | |
| 4944 os::Solaris::set_thr_setmutator(CAST_TO_FN_PTR(int_fnP_thread_t_i, func)); | |
| 4945 | |
| 4946 func = resolve_symbol("thr_suspend_mutator"); | |
| 4947 os::Solaris::set_thr_suspend_mutator(CAST_TO_FN_PTR(int_fnP_thread_t, func)); | |
| 4948 | |
| 4949 func = resolve_symbol("thr_continue_mutator"); | |
| 4950 os::Solaris::set_thr_continue_mutator(CAST_TO_FN_PTR(int_fnP_thread_t, func)); | |
| 4951 | |
| 4952 int size; | |
| 4953 void (*handler_info_func)(address *, int *); | |
| 4954 handler_info_func = CAST_TO_FN_PTR(void (*)(address *, int *), resolve_symbol("thr_sighndlrinfo")); | |
| 4955 handler_info_func(&handler_start, &size); | |
| 4956 handler_end = handler_start + size; | |
| 4957 } | |
| 4958 | |
| 4959 | |
| 4960 int_fnP_mutex_tP os::Solaris::_mutex_lock; | |
| 4961 int_fnP_mutex_tP os::Solaris::_mutex_trylock; | |
| 4962 int_fnP_mutex_tP os::Solaris::_mutex_unlock; | |
| 4963 int_fnP_mutex_tP_i_vP os::Solaris::_mutex_init; | |
| 4964 int_fnP_mutex_tP os::Solaris::_mutex_destroy; | |
| 4965 int os::Solaris::_mutex_scope = USYNC_THREAD; | |
| 4966 | |
| 4967 int_fnP_cond_tP_mutex_tP_timestruc_tP os::Solaris::_cond_timedwait; | |
| 4968 int_fnP_cond_tP_mutex_tP os::Solaris::_cond_wait; | |
| 4969 int_fnP_cond_tP os::Solaris::_cond_signal; | |
| 4970 int_fnP_cond_tP os::Solaris::_cond_broadcast; | |
| 4971 int_fnP_cond_tP_i_vP os::Solaris::_cond_init; | |
| 4972 int_fnP_cond_tP os::Solaris::_cond_destroy; | |
| 4973 int os::Solaris::_cond_scope = USYNC_THREAD; | |
| 4974 | |
| 4975 void os::Solaris::synchronization_init() { | |
| 4976 if(UseLWPSynchronization) { | |
| 4977 os::Solaris::set_mutex_lock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("_lwp_mutex_lock"))); | |
| 4978 os::Solaris::set_mutex_trylock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("_lwp_mutex_trylock"))); | |
| 4979 os::Solaris::set_mutex_unlock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("_lwp_mutex_unlock"))); | |
| 4980 os::Solaris::set_mutex_init(lwp_mutex_init); | |
| 4981 os::Solaris::set_mutex_destroy(lwp_mutex_destroy); | |
| 4982 os::Solaris::set_mutex_scope(USYNC_THREAD); | |
| 4983 | |
| 4984 os::Solaris::set_cond_timedwait(CAST_TO_FN_PTR(int_fnP_cond_tP_mutex_tP_timestruc_tP, resolve_symbol("_lwp_cond_timedwait"))); | |
| 4985 os::Solaris::set_cond_wait(CAST_TO_FN_PTR(int_fnP_cond_tP_mutex_tP, resolve_symbol("_lwp_cond_wait"))); | |
| 4986 os::Solaris::set_cond_signal(CAST_TO_FN_PTR(int_fnP_cond_tP, resolve_symbol("_lwp_cond_signal"))); | |
| 4987 os::Solaris::set_cond_broadcast(CAST_TO_FN_PTR(int_fnP_cond_tP, resolve_symbol("_lwp_cond_broadcast"))); | |
| 4988 os::Solaris::set_cond_init(lwp_cond_init); | |
| 4989 os::Solaris::set_cond_destroy(lwp_cond_destroy); | |
| 4990 os::Solaris::set_cond_scope(USYNC_THREAD); | |
| 4991 } | |
| 4992 else { | |
| 4993 os::Solaris::set_mutex_scope(USYNC_THREAD); | |
| 4994 os::Solaris::set_cond_scope(USYNC_THREAD); | |
| 4995 | |
| 4996 if(UsePthreads) { | |
| 4997 os::Solaris::set_mutex_lock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("pthread_mutex_lock"))); | |
| 4998 os::Solaris::set_mutex_trylock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("pthread_mutex_trylock"))); | |
| 4999 os::Solaris::set_mutex_unlock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("pthread_mutex_unlock"))); | |
| 5000 os::Solaris::set_mutex_init(pthread_mutex_default_init); | |
| 5001 os::Solaris::set_mutex_destroy(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("pthread_mutex_destroy"))); | |
| 5002 | |
| 5003 os::Solaris::set_cond_timedwait(CAST_TO_FN_PTR(int_fnP_cond_tP_mutex_tP_timestruc_tP, resolve_symbol("pthread_cond_timedwait"))); | |
| 5004 os::Solaris::set_cond_wait(CAST_TO_FN_PTR(int_fnP_cond_tP_mutex_tP, resolve_symbol("pthread_cond_wait"))); | |
| 5005 os::Solaris::set_cond_signal(CAST_TO_FN_PTR(int_fnP_cond_tP, resolve_symbol("pthread_cond_signal"))); | |
| 5006 os::Solaris::set_cond_broadcast(CAST_TO_FN_PTR(int_fnP_cond_tP, resolve_symbol("pthread_cond_broadcast"))); | |
| 5007 os::Solaris::set_cond_init(pthread_cond_default_init); | |
| 5008 os::Solaris::set_cond_destroy(CAST_TO_FN_PTR(int_fnP_cond_tP, resolve_symbol("pthread_cond_destroy"))); | |
| 5009 } | |
| 5010 else { | |
| 5011 os::Solaris::set_mutex_lock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("mutex_lock"))); | |
| 5012 os::Solaris::set_mutex_trylock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("mutex_trylock"))); | |
| 5013 os::Solaris::set_mutex_unlock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("mutex_unlock"))); | |
| 5014 os::Solaris::set_mutex_init(::mutex_init); | |
| 5015 os::Solaris::set_mutex_destroy(::mutex_destroy); | |
| 5016 | |
| 5017 os::Solaris::set_cond_timedwait(CAST_TO_FN_PTR(int_fnP_cond_tP_mutex_tP_timestruc_tP, resolve_symbol("cond_timedwait"))); | |
| 5018 os::Solaris::set_cond_wait(CAST_TO_FN_PTR(int_fnP_cond_tP_mutex_tP, resolve_symbol("cond_wait"))); | |
| 5019 os::Solaris::set_cond_signal(CAST_TO_FN_PTR(int_fnP_cond_tP, resolve_symbol("cond_signal"))); | |
| 5020 os::Solaris::set_cond_broadcast(CAST_TO_FN_PTR(int_fnP_cond_tP, resolve_symbol("cond_broadcast"))); | |
| 5021 os::Solaris::set_cond_init(::cond_init); | |
| 5022 os::Solaris::set_cond_destroy(::cond_destroy); | |
| 5023 } | |
| 5024 } | |
| 5025 } | |
| 5026 | |
|
462
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5027 bool os::Solaris::liblgrp_init() { |
|
267
9d6a3a6891f8
6720130: NUMA allocator: The linux version should search for libnuma.so.1
iveresov
parents:
144
diff
changeset
|
5028 void *handle = dlopen("liblgrp.so.1", RTLD_LAZY); |
| 0 | 5029 if (handle != NULL) { |
| 5030 os::Solaris::set_lgrp_home(CAST_TO_FN_PTR(lgrp_home_func_t, dlsym(handle, "lgrp_home"))); | |
| 5031 os::Solaris::set_lgrp_init(CAST_TO_FN_PTR(lgrp_init_func_t, dlsym(handle, "lgrp_init"))); | |
| 5032 os::Solaris::set_lgrp_fini(CAST_TO_FN_PTR(lgrp_fini_func_t, dlsym(handle, "lgrp_fini"))); | |
| 5033 os::Solaris::set_lgrp_root(CAST_TO_FN_PTR(lgrp_root_func_t, dlsym(handle, "lgrp_root"))); | |
| 5034 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
|
5035 os::Solaris::set_lgrp_resources(CAST_TO_FN_PTR(lgrp_resources_func_t, dlsym(handle, "lgrp_resources"))); |
| 0 | 5036 os::Solaris::set_lgrp_nlgrps(CAST_TO_FN_PTR(lgrp_nlgrps_func_t, dlsym(handle, "lgrp_nlgrps"))); |
| 5037 os::Solaris::set_lgrp_cookie_stale(CAST_TO_FN_PTR(lgrp_cookie_stale_func_t, | |
| 5038 dlsym(handle, "lgrp_cookie_stale"))); | |
| 5039 | |
| 5040 lgrp_cookie_t c = lgrp_init(LGRP_VIEW_CALLER); | |
| 5041 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
|
5042 return true; |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5043 } |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5044 return false; |
| 0 | 5045 } |
| 5046 | |
| 5047 void os::Solaris::misc_sym_init() { | |
|
641
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
5048 address func; |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
5049 |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
5050 // getisax |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
5051 func = resolve_symbol_lazy("getisax"); |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
5052 if (func != NULL) { |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
5053 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
|
5054 } |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
5055 |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
5056 // meminfo |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
5057 func = resolve_symbol_lazy("meminfo"); |
| 0 | 5058 if (func != NULL) { |
| 5059 os::Solaris::set_meminfo(CAST_TO_FN_PTR(meminfo_func_t, func)); | |
| 5060 } | |
| 5061 } | |
| 5062 | |
|
641
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
5063 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
|
5064 assert(_getisax != NULL, "_getisax not set"); |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
5065 return _getisax(array, n); |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
5066 } |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
5067 |
| 0 | 5068 // int pset_getloadavg(psetid_t pset, double loadavg[], int nelem); |
| 5069 typedef long (*pset_getloadavg_type)(psetid_t pset, double loadavg[], int nelem); | |
| 5070 static pset_getloadavg_type pset_getloadavg_ptr = NULL; | |
| 5071 | |
| 5072 void init_pset_getloadavg_ptr(void) { | |
| 5073 pset_getloadavg_ptr = | |
| 5074 (pset_getloadavg_type)dlsym(RTLD_DEFAULT, "pset_getloadavg"); | |
| 5075 if (PrintMiscellaneous && Verbose && pset_getloadavg_ptr == NULL) { | |
| 5076 warning("pset_getloadavg function not found"); | |
| 5077 } | |
| 5078 } | |
| 5079 | |
| 5080 int os::Solaris::_dev_zero_fd = -1; | |
| 5081 | |
| 5082 // this is called _before_ the global arguments have been parsed | |
| 5083 void os::init(void) { | |
| 5084 _initial_pid = getpid(); | |
| 5085 | |
| 5086 max_hrtime = first_hrtime = gethrtime(); | |
| 5087 | |
| 5088 init_random(1234567); | |
| 5089 | |
| 5090 page_size = sysconf(_SC_PAGESIZE); | |
| 5091 if (page_size == -1) | |
|
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1353
diff
changeset
|
5092 fatal(err_msg("os_solaris.cpp: os::init: sysconf failed (%s)", |
|
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1353
diff
changeset
|
5093 strerror(errno))); |
| 0 | 5094 init_page_sizes((size_t) page_size); |
| 5095 | |
| 5096 Solaris::initialize_system_info(); | |
| 5097 | |
|
641
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
5098 // 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
|
5099 // if we need them. |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
5100 Solaris::misc_sym_init(); |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
5101 |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
5102 int fd = ::open("/dev/zero", O_RDWR); |
| 0 | 5103 if (fd < 0) { |
|
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1353
diff
changeset
|
5104 fatal(err_msg("os::init: cannot open /dev/zero (%s)", strerror(errno))); |
| 0 | 5105 } else { |
| 5106 Solaris::set_dev_zero_fd(fd); | |
| 5107 | |
| 5108 // Close on exec, child won't inherit. | |
| 5109 fcntl(fd, F_SETFD, FD_CLOEXEC); | |
| 5110 } | |
| 5111 | |
| 5112 clock_tics_per_sec = CLK_TCK; | |
| 5113 | |
| 5114 // check if dladdr1() exists; dladdr1 can provide more information than | |
| 5115 // dladdr for os::dll_address_to_function_name. It comes with SunOS 5.9 | |
| 5116 // and is available on linker patches for 5.7 and 5.8. | |
| 5117 // libdl.so must have been loaded, this call is just an entry lookup | |
| 5118 void * hdl = dlopen("libdl.so", RTLD_NOW); | |
| 5119 if (hdl) | |
| 5120 dladdr1_func = CAST_TO_FN_PTR(dladdr1_func_type, dlsym(hdl, "dladdr1")); | |
| 5121 | |
| 5122 // (Solaris only) this switches to calls that actually do locking. | |
| 5123 ThreadCritical::initialize(); | |
| 5124 | |
| 5125 main_thread = thr_self(); | |
| 5126 | |
| 5127 // Constant minimum stack size allowed. It must be at least | |
| 5128 // the minimum of what the OS supports (thr_min_stack()), and | |
| 5129 // enough to allow the thread to get to user bytecode execution. | |
| 5130 Solaris::min_stack_allowed = MAX2(thr_min_stack(), Solaris::min_stack_allowed); | |
| 5131 // If the pagesize of the VM is greater than 8K determine the appropriate | |
| 5132 // number of initial guard pages. The user can change this with the | |
| 5133 // command line arguments, if needed. | |
| 5134 if (vm_page_size() > 8*K) { | |
| 5135 StackYellowPages = 1; | |
| 5136 StackRedPages = 1; | |
| 5137 StackShadowPages = round_to((StackShadowPages*8*K), vm_page_size()) / vm_page_size(); | |
| 5138 } | |
| 5139 } | |
| 5140 | |
| 5141 // To install functions for atexit system call | |
| 5142 extern "C" { | |
| 5143 static void perfMemory_exit_helper() { | |
| 5144 perfMemory_exit(); | |
| 5145 } | |
| 5146 } | |
| 5147 | |
| 5148 // this is called _after_ the global arguments have been parsed | |
| 5149 jint os::init_2(void) { | |
| 5150 // try to enable extended file IO ASAP, see 6431278 | |
| 5151 os::Solaris::try_enable_extended_io(); | |
| 5152 | |
| 5153 // Allocate a single page and mark it as readable for safepoint polling. Also | |
| 5154 // use this first mmap call to check support for MAP_ALIGN. | |
| 5155 address polling_page = (address)Solaris::mmap_chunk((char*)page_size, | |
| 5156 page_size, | |
| 5157 MAP_PRIVATE | MAP_ALIGN, | |
| 5158 PROT_READ); | |
| 5159 if (polling_page == NULL) { | |
| 5160 has_map_align = false; | |
| 5161 polling_page = (address)Solaris::mmap_chunk(NULL, page_size, MAP_PRIVATE, | |
| 5162 PROT_READ); | |
| 5163 } | |
| 5164 | |
| 5165 os::set_polling_page(polling_page); | |
| 5166 | |
| 5167 #ifndef PRODUCT | |
| 5168 if( Verbose && PrintMiscellaneous ) | |
| 5169 tty->print("[SafePoint Polling address: " INTPTR_FORMAT "]\n", (intptr_t)polling_page); | |
| 5170 #endif | |
| 5171 | |
| 5172 if (!UseMembar) { | |
| 5173 address mem_serialize_page = (address)Solaris::mmap_chunk( NULL, page_size, MAP_PRIVATE, PROT_READ | PROT_WRITE ); | |
| 5174 guarantee( mem_serialize_page != NULL, "mmap Failed for memory serialize page"); | |
| 5175 os::set_memory_serialize_page( mem_serialize_page ); | |
| 5176 | |
| 5177 #ifndef PRODUCT | |
| 5178 if(Verbose && PrintMiscellaneous) | |
| 5179 tty->print("[Memory Serialize Page address: " INTPTR_FORMAT "]\n", (intptr_t)mem_serialize_page); | |
| 5180 #endif | |
|
12233
40136aa2cdb1
8010722: assert: failed: heap size is too big for compressed oops
tschatzl
parents:
12110
diff
changeset
|
5181 } |
| 0 | 5182 |
| 5183 // Check minimum allowable stack size for thread creation and to initialize | |
| 5184 // the java system classes, including StackOverflowError - depends on page | |
| 5185 // 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
|
5186 // Add in 2*BytesPerWord times page size to account for VM stack during |
| 0 | 5187 // 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
|
5188 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
|
5189 (size_t)(StackYellowPages+StackRedPages+StackShadowPages+ |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
5190 2*BytesPerWord COMPILER2_PRESENT(+1)) * page_size); |
| 0 | 5191 |
| 5192 size_t threadStackSizeInBytes = ThreadStackSize * K; | |
| 5193 if (threadStackSizeInBytes != 0 && | |
|
1867
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
5194 threadStackSizeInBytes < os::Solaris::min_stack_allowed) { |
| 0 | 5195 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
|
5196 os::Solaris::min_stack_allowed/K); |
| 0 | 5197 return JNI_ERR; |
| 5198 } | |
| 5199 | |
| 5200 // For 64kbps there will be a 64kb page size, which makes | |
| 5201 // the usable default stack size quite a bit less. Increase the | |
| 5202 // stack for 64kb (or any > than 8kb) pages, this increases | |
| 5203 // virtual memory fragmentation (since we're not creating the | |
| 5204 // stack on a power of 2 boundary. The real fix for this | |
| 5205 // should be to fix the guard page mechanism. | |
| 5206 | |
| 5207 if (vm_page_size() > 8*K) { | |
| 5208 threadStackSizeInBytes = (threadStackSizeInBytes != 0) | |
| 5209 ? threadStackSizeInBytes + | |
| 5210 ((StackYellowPages + StackRedPages) * vm_page_size()) | |
| 5211 : 0; | |
| 5212 ThreadStackSize = threadStackSizeInBytes/K; | |
| 5213 } | |
| 5214 | |
| 5215 // Make the stack size a multiple of the page size so that | |
| 5216 // the yellow/red zones can be guarded. | |
| 5217 JavaThread::set_stack_size_at_create(round_to(threadStackSizeInBytes, | |
| 5218 vm_page_size())); | |
| 5219 | |
| 5220 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
|
5221 |
| 0 | 5222 if (UseNUMA) { |
|
462
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5223 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
|
5224 UseNUMA = false; |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5225 } else { |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5226 size_t lgrp_limit = os::numa_get_groups_num(); |
| 6197 | 5227 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
|
5228 size_t lgrp_num = os::numa_get_leaf_groups(lgrp_ids, lgrp_limit); |
| 6197 | 5229 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
|
5230 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
|
5231 // 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
|
5232 UseNUMA = false; |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5233 } |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5234 } |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5235 if (!UseNUMA && ForceNUMA) { |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5236 UseNUMA = true; |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5237 } |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5238 } |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5239 |
| 0 | 5240 Solaris::signal_sets_init(); |
| 5241 Solaris::init_signal_mem(); | |
| 5242 Solaris::install_signal_handlers(); | |
| 5243 | |
| 5244 if (libjsigversion < JSIG_VERSION_1_4_1) { | |
| 5245 Maxlibjsigsigs = OLDMAXSIGNUM; | |
| 5246 } | |
| 5247 | |
| 5248 // initialize synchronization primitives to use either thread or | |
| 5249 // lwp synchronization (controlled by UseLWPSynchronization) | |
| 5250 Solaris::synchronization_init(); | |
| 5251 | |
| 5252 if (MaxFDLimit) { | |
| 5253 // set the number of file descriptors to max. print out error | |
| 5254 // if getrlimit/setrlimit fails but continue regardless. | |
| 5255 struct rlimit nbr_files; | |
| 5256 int status = getrlimit(RLIMIT_NOFILE, &nbr_files); | |
| 5257 if (status != 0) { | |
| 5258 if (PrintMiscellaneous && (Verbose || WizardMode)) | |
| 5259 perror("os::init_2 getrlimit failed"); | |
| 5260 } else { | |
| 5261 nbr_files.rlim_cur = nbr_files.rlim_max; | |
| 5262 status = setrlimit(RLIMIT_NOFILE, &nbr_files); | |
| 5263 if (status != 0) { | |
| 5264 if (PrintMiscellaneous && (Verbose || WizardMode)) | |
| 5265 perror("os::init_2 setrlimit failed"); | |
| 5266 } | |
| 5267 } | |
| 5268 } | |
| 5269 | |
| 5270 // Calculate theoretical max. size of Threads to guard gainst | |
| 5271 // artifical out-of-memory situations, where all available address- | |
| 5272 // space has been reserved by thread stacks. Default stack size is 1Mb. | |
| 5273 size_t pre_thread_stack_size = (JavaThread::stack_size_at_create()) ? | |
| 5274 JavaThread::stack_size_at_create() : (1*K*K); | |
| 5275 assert(pre_thread_stack_size != 0, "Must have a stack"); | |
| 5276 // Solaris has a maximum of 4Gb of user programs. Calculate the thread limit when | |
| 5277 // we should start doing Virtual Memory banging. Currently when the threads will | |
| 5278 // have used all but 200Mb of space. | |
| 5279 size_t max_address_space = ((unsigned int)4 * K * K * K) - (200 * K * K); | |
| 5280 Solaris::_os_thread_limit = max_address_space / pre_thread_stack_size; | |
| 5281 | |
| 5282 // at-exit methods are called in the reverse order of their registration. | |
| 5283 // In Solaris 7 and earlier, atexit functions are called on return from | |
| 5284 // main or as a result of a call to exit(3C). There can be only 32 of | |
| 5285 // these functions registered and atexit() does not set errno. In Solaris | |
| 5286 // 8 and later, there is no limit to the number of functions registered | |
| 5287 // and atexit() sets errno. In addition, in Solaris 8 and later, atexit | |
| 5288 // functions are called upon dlclose(3DL) in addition to return from main | |
| 5289 // and exit(3C). | |
| 5290 | |
| 5291 if (PerfAllowAtExitRegistration) { | |
| 5292 // only register atexit functions if PerfAllowAtExitRegistration is set. | |
| 5293 // atexit functions can be delayed until process exit time, which | |
| 5294 // can be problematic for embedded VM situations. Embedded VMs should | |
| 5295 // call DestroyJavaVM() to assure that VM resources are released. | |
| 5296 | |
| 5297 // note: perfMemory_exit_helper atexit function may be removed in | |
| 5298 // the future if the appropriate cleanup code can be added to the | |
| 5299 // VM_Exit VMOperation's doit method. | |
| 5300 if (atexit(perfMemory_exit_helper) != 0) { | |
| 5301 warning("os::init2 atexit(perfMemory_exit_helper) failed"); | |
| 5302 } | |
| 5303 } | |
| 5304 | |
| 5305 // Init pset_loadavg function pointer | |
| 5306 init_pset_getloadavg_ptr(); | |
| 5307 | |
| 5308 return JNI_OK; | |
| 5309 } | |
| 5310 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
5311 void os::init_3(void) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
5312 return; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
5313 } |
| 0 | 5314 |
| 5315 // Mark the polling page as unreadable | |
| 5316 void os::make_polling_page_unreadable(void) { | |
| 5317 if( mprotect((char *)_polling_page, page_size, PROT_NONE) != 0 ) | |
| 5318 fatal("Could not disable polling page"); | |
| 5319 }; | |
| 5320 | |
| 5321 // Mark the polling page as readable | |
| 5322 void os::make_polling_page_readable(void) { | |
| 5323 if( mprotect((char *)_polling_page, page_size, PROT_READ) != 0 ) | |
| 5324 fatal("Could not enable polling page"); | |
| 5325 }; | |
| 5326 | |
| 5327 // OS interface. | |
| 5328 | |
| 5329 bool os::check_heap(bool force) { return true; } | |
| 5330 | |
| 5331 typedef int (*vsnprintf_t)(char* buf, size_t count, const char* fmt, va_list argptr); | |
| 5332 static vsnprintf_t sol_vsnprintf = NULL; | |
| 5333 | |
| 5334 int local_vsnprintf(char* buf, size_t count, const char* fmt, va_list argptr) { | |
| 5335 if (!sol_vsnprintf) { | |
| 5336 //search for the named symbol in the objects that were loaded after libjvm | |
| 5337 void* where = RTLD_NEXT; | |
| 5338 if ((sol_vsnprintf = CAST_TO_FN_PTR(vsnprintf_t, dlsym(where, "__vsnprintf"))) == NULL) | |
| 5339 sol_vsnprintf = CAST_TO_FN_PTR(vsnprintf_t, dlsym(where, "vsnprintf")); | |
| 5340 if (!sol_vsnprintf){ | |
| 5341 //search for the named symbol in the objects that were loaded before libjvm | |
| 5342 where = RTLD_DEFAULT; | |
| 5343 if ((sol_vsnprintf = CAST_TO_FN_PTR(vsnprintf_t, dlsym(where, "__vsnprintf"))) == NULL) | |
| 5344 sol_vsnprintf = CAST_TO_FN_PTR(vsnprintf_t, dlsym(where, "vsnprintf")); | |
| 5345 assert(sol_vsnprintf != NULL, "vsnprintf not found"); | |
| 5346 } | |
| 5347 } | |
| 5348 return (*sol_vsnprintf)(buf, count, fmt, argptr); | |
| 5349 } | |
| 5350 | |
| 5351 | |
| 5352 // Is a (classpath) directory empty? | |
| 5353 bool os::dir_is_empty(const char* path) { | |
| 5354 DIR *dir = NULL; | |
| 5355 struct dirent *ptr; | |
| 5356 | |
| 5357 dir = opendir(path); | |
| 5358 if (dir == NULL) return true; | |
| 5359 | |
| 5360 /* Scan the directory */ | |
| 5361 bool result = true; | |
| 5362 char buf[sizeof(struct dirent) + MAX_PATH]; | |
| 5363 struct dirent *dbuf = (struct dirent *) buf; | |
| 5364 while (result && (ptr = readdir(dir, dbuf)) != NULL) { | |
| 5365 if (strcmp(ptr->d_name, ".") != 0 && strcmp(ptr->d_name, "..") != 0) { | |
| 5366 result = false; | |
| 5367 } | |
| 5368 } | |
| 5369 closedir(dir); | |
| 5370 return result; | |
| 5371 } | |
| 5372 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5373 // 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
|
5374 // from src/solaris/hpi/src/system_md.c |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5375 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5376 #ifndef O_DELETE |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5377 #define O_DELETE 0x10000 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5378 #endif |
|
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 // 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
|
5381 // 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
|
5382 // 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
|
5383 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5384 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
|
5385 if (strlen(path) > MAX_PATH - 1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5386 errno = ENAMETOOLONG; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5387 return -1; |
|
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 int fd; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5390 int o_delete = (oflag & O_DELETE); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5391 oflag = oflag & ~O_DELETE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5392 |
| 2097 | 5393 fd = ::open64(path, oflag, mode); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5394 if (fd == -1) return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5395 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5396 //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
|
5397 { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5398 struct stat64 buf64; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5399 int ret = ::fstat64(fd, &buf64); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5400 int st_mode = buf64.st_mode; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5401 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5402 if (ret != -1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5403 if ((st_mode & S_IFMT) == S_IFDIR) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5404 errno = EISDIR; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5405 ::close(fd); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5406 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5407 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5408 } else { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5409 ::close(fd); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5410 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5411 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5412 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5413 /* |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5414 * 32-bit Solaris systems suffer from: |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5415 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5416 * - 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
|
5417 * 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
|
5418 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5419 * - 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
|
5420 * 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
|
5421 * 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
|
5422 * 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
|
5423 * 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
|
5424 * 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
|
5425 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5426 * We attempt to make everything work anyways by: |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5427 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5428 * - 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
|
5429 * 256 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5430 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5431 * - 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
|
5432 * 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
|
5433 * 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
|
5434 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5435 * - 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
|
5436 * 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
|
5437 * 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
|
5438 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5439 * See: |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5440 * 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
|
5441 * 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
|
5442 * 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
|
5443 * enable_extended_FILE_stdio() in VM initialisation |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5444 * Giri Mandalika's blog |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5445 * 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
|
5446 */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5447 #ifndef _LP64 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5448 if ((!enabled_extended_FILE_stdio) && fd < 256) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5449 int newfd = ::fcntl(fd, F_DUPFD, 256); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5450 if (newfd != -1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5451 ::close(fd); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5452 fd = newfd; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5453 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5454 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5455 #endif // 32-bit Solaris |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5456 /* |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5457 * 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
|
5458 * specifically destined for a subprocess should have the |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5459 * 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
|
5460 * 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
|
5461 * 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
|
5462 * UNIXProcess.c), and this in turn might: |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5463 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5464 * - 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
|
5465 * descriptors, resulting in mysterious hangs, or |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5466 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5467 * - 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
|
5468 * suffering from bug 1085341. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5469 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5470 * (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
|
5471 * design flaw) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5472 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5473 * See: |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5474 * 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
|
5475 * 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
|
5476 * 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
|
5477 */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5478 #ifdef FD_CLOEXEC |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5479 { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5480 int flags = ::fcntl(fd, F_GETFD); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5481 if (flags != -1) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5482 ::fcntl(fd, F_SETFD, flags | FD_CLOEXEC); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5483 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5484 #endif |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5485 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5486 if (o_delete != 0) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5487 ::unlink(path); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5488 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5489 return fd; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5490 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5491 |
| 0 | 5492 // create binary file, rewriting existing file if required |
| 5493 int os::create_binary_file(const char* path, bool rewrite_existing) { | |
| 5494 int oflags = O_WRONLY | O_CREAT; | |
| 5495 if (!rewrite_existing) { | |
| 5496 oflags |= O_EXCL; | |
| 5497 } | |
| 5498 return ::open64(path, oflags, S_IREAD | S_IWRITE); | |
| 5499 } | |
| 5500 | |
| 5501 // return current position of file pointer | |
| 5502 jlong os::current_file_offset(int fd) { | |
| 5503 return (jlong)::lseek64(fd, (off64_t)0, SEEK_CUR); | |
| 5504 } | |
| 5505 | |
| 5506 // move file pointer to the specified offset | |
| 5507 jlong os::seek_to_file_offset(int fd, jlong offset) { | |
| 5508 return (jlong)::lseek64(fd, (off64_t)offset, SEEK_SET); | |
| 5509 } | |
| 5510 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5511 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
|
5512 return (jlong) ::lseek64(fd, offset, whence); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5513 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5514 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5515 char * os::native_path(char *path) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5516 return path; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5517 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5518 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5519 int os::ftruncate(int fd, jlong length) { |
|
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|
5520 return ::ftruncate64(fd, length); |
|
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diff
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|
5521 } |
|
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diff
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|
5522 |
|
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changeset
|
5523 int os::fsync(int fd) { |
|
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diff
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|
5524 RESTARTABLE_RETURN_INT(::fsync(fd)); |
|
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diff
changeset
|
5525 } |
|
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|
5526 |
|
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|
5527 int os::available(int fd, jlong *bytes) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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diff
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|
5528 jlong cur, end; |
|
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diff
changeset
|
5529 int mode; |
|
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diff
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|
5530 struct stat64 buf64; |
|
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diff
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|
5531 |
|
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|
5532 if (::fstat64(fd, &buf64) >= 0) { |
|
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changeset
|
5533 mode = buf64.st_mode; |
|
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|
5534 if (S_ISCHR(mode) || S_ISFIFO(mode) || S_ISSOCK(mode)) { |
|
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|
5535 /* |
|
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diff
changeset
|
5536 * XXX: is the following call interruptible? If so, this might |
|
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1972
diff
changeset
|
5537 * need to go through the INTERRUPT_IO() wrapper as for other |
|
828eafbd85cc
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ikrylov
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diff
changeset
|
5538 * blocking, interruptible calls in this file. |
|
828eafbd85cc
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ikrylov
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diff
changeset
|
5539 */ |
|
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1972
diff
changeset
|
5540 int n,ioctl_return; |
|
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6348631: remove the use of the HPI library from Hotspot
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diff
changeset
|
5541 |
|
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diff
changeset
|
5542 INTERRUPTIBLE(::ioctl(fd, FIONREAD, &n),ioctl_return,os::Solaris::clear_interrupted); |
|
828eafbd85cc
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ikrylov
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1972
diff
changeset
|
5543 if (ioctl_return>= 0) { |
|
828eafbd85cc
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ikrylov
parents:
1972
diff
changeset
|
5544 *bytes = n; |
|
828eafbd85cc
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parents:
1972
diff
changeset
|
5545 return 1; |
|
828eafbd85cc
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ikrylov
parents:
1972
diff
changeset
|
5546 } |
|
828eafbd85cc
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diff
changeset
|
5547 } |
|
828eafbd85cc
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diff
changeset
|
5548 } |
|
828eafbd85cc
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diff
changeset
|
5549 if ((cur = ::lseek64(fd, 0L, SEEK_CUR)) == -1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
5550 return 0; |
|
828eafbd85cc
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ikrylov
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1972
diff
changeset
|
5551 } else if ((end = ::lseek64(fd, 0L, SEEK_END)) == -1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
5552 return 0; |
|
828eafbd85cc
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ikrylov
parents:
1972
diff
changeset
|
5553 } else if (::lseek64(fd, cur, SEEK_SET) == -1) { |
|
828eafbd85cc
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ikrylov
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1972
diff
changeset
|
5554 return 0; |
|
828eafbd85cc
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parents:
1972
diff
changeset
|
5555 } |
|
828eafbd85cc
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diff
changeset
|
5556 *bytes = end - cur; |
|
828eafbd85cc
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parents:
1972
diff
changeset
|
5557 return 1; |
|
828eafbd85cc
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ikrylov
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diff
changeset
|
5558 } |
|
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|
5559 |
| 0 | 5560 // Map a block of memory. |
| 6197 | 5561 char* os::pd_map_memory(int fd, const char* file_name, size_t file_offset, |
| 0 | 5562 char *addr, size_t bytes, bool read_only, |
| 5563 bool allow_exec) { | |
| 5564 int prot; | |
| 5565 int flags; | |
| 5566 | |
| 5567 if (read_only) { | |
| 5568 prot = PROT_READ; | |
| 5569 flags = MAP_SHARED; | |
| 5570 } else { | |
| 5571 prot = PROT_READ | PROT_WRITE; | |
| 5572 flags = MAP_PRIVATE; | |
| 5573 } | |
| 5574 | |
| 5575 if (allow_exec) { | |
| 5576 prot |= PROT_EXEC; | |
| 5577 } | |
| 5578 | |
| 5579 if (addr != NULL) { | |
| 5580 flags |= MAP_FIXED; | |
| 5581 } | |
| 5582 | |
| 5583 char* mapped_address = (char*)mmap(addr, (size_t)bytes, prot, flags, | |
| 5584 fd, file_offset); | |
| 5585 if (mapped_address == MAP_FAILED) { | |
| 5586 return NULL; | |
| 5587 } | |
| 5588 return mapped_address; | |
| 5589 } | |
| 5590 | |
| 5591 | |
| 5592 // Remap a block of memory. | |
| 6197 | 5593 char* os::pd_remap_memory(int fd, const char* file_name, size_t file_offset, |
| 0 | 5594 char *addr, size_t bytes, bool read_only, |
| 5595 bool allow_exec) { | |
| 5596 // same as map_memory() on this OS | |
| 5597 return os::map_memory(fd, file_name, file_offset, addr, bytes, read_only, | |
| 5598 allow_exec); | |
| 5599 } | |
| 5600 | |
| 5601 | |
| 5602 // Unmap a block of memory. | |
| 6197 | 5603 bool os::pd_unmap_memory(char* addr, size_t bytes) { |
| 0 | 5604 return munmap(addr, bytes) == 0; |
| 5605 } | |
| 5606 | |
| 5607 void os::pause() { | |
| 5608 char filename[MAX_PATH]; | |
| 5609 if (PauseAtStartupFile && PauseAtStartupFile[0]) { | |
| 5610 jio_snprintf(filename, MAX_PATH, PauseAtStartupFile); | |
| 5611 } else { | |
| 5612 jio_snprintf(filename, MAX_PATH, "./vm.paused.%d", current_process_id()); | |
| 5613 } | |
| 5614 | |
| 5615 int fd = ::open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0666); | |
| 5616 if (fd != -1) { | |
| 5617 struct stat buf; | |
|
1980
828eafbd85cc
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diff
changeset
|
5618 ::close(fd); |
| 0 | 5619 while (::stat(filename, &buf) == 0) { |
| 5620 (void)::poll(NULL, 0, 100); | |
| 5621 } | |
| 5622 } else { | |
| 5623 jio_fprintf(stderr, | |
| 5624 "Could not open pause file '%s', continuing immediately.\n", filename); | |
| 5625 } | |
| 5626 } | |
| 5627 | |
| 5628 #ifndef PRODUCT | |
| 5629 #ifdef INTERPOSE_ON_SYSTEM_SYNCH_FUNCTIONS | |
| 5630 // Turn this on if you need to trace synch operations. | |
| 5631 // Set RECORD_SYNCH_LIMIT to a large-enough value, | |
| 5632 // and call record_synch_enable and record_synch_disable | |
| 5633 // around the computation of interest. | |
| 5634 | |
| 5635 void record_synch(char* name, bool returning); // defined below | |
| 5636 | |
| 5637 class RecordSynch { | |
| 5638 char* _name; | |
| 5639 public: | |
| 5640 RecordSynch(char* name) :_name(name) | |
| 5641 { record_synch(_name, false); } | |
| 5642 ~RecordSynch() { record_synch(_name, true); } | |
| 5643 }; | |
| 5644 | |
| 5645 #define CHECK_SYNCH_OP(ret, name, params, args, inner) \ | |
| 5646 extern "C" ret name params { \ | |
| 5647 typedef ret name##_t params; \ | |
| 5648 static name##_t* implem = NULL; \ | |
| 5649 static int callcount = 0; \ | |
| 5650 if (implem == NULL) { \ | |
| 5651 implem = (name##_t*) dlsym(RTLD_NEXT, #name); \ | |
| 5652 if (implem == NULL) fatal(dlerror()); \ | |
| 5653 } \ | |
| 5654 ++callcount; \ | |
| 5655 RecordSynch _rs(#name); \ | |
| 5656 inner; \ | |
| 5657 return implem args; \ | |
| 5658 } | |
| 5659 // in dbx, examine callcounts this way: | |
| 5660 // for n in $(eval whereis callcount | awk '{print $2}'); do print $n; done | |
| 5661 | |
| 5662 #define CHECK_POINTER_OK(p) \ | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6200
diff
changeset
|
5663 (!Universe::is_fully_initialized() || !Universe::is_reserved_heap((oop)(p))) |
| 0 | 5664 #define CHECK_MU \ |
| 5665 if (!CHECK_POINTER_OK(mu)) fatal("Mutex must be in C heap only."); | |
| 5666 #define CHECK_CV \ | |
| 5667 if (!CHECK_POINTER_OK(cv)) fatal("Condvar must be in C heap only."); | |
| 5668 #define CHECK_P(p) \ | |
| 5669 if (!CHECK_POINTER_OK(p)) fatal(false, "Pointer must be in C heap only."); | |
| 5670 | |
| 5671 #define CHECK_MUTEX(mutex_op) \ | |
| 5672 CHECK_SYNCH_OP(int, mutex_op, (mutex_t *mu), (mu), CHECK_MU); | |
| 5673 | |
| 5674 CHECK_MUTEX( mutex_lock) | |
| 5675 CHECK_MUTEX( _mutex_lock) | |
| 5676 CHECK_MUTEX( mutex_unlock) | |
| 5677 CHECK_MUTEX(_mutex_unlock) | |
| 5678 CHECK_MUTEX( mutex_trylock) | |
| 5679 CHECK_MUTEX(_mutex_trylock) | |
| 5680 | |
| 5681 #define CHECK_COND(cond_op) \ | |
| 5682 CHECK_SYNCH_OP(int, cond_op, (cond_t *cv, mutex_t *mu), (cv, mu), CHECK_MU;CHECK_CV); | |
| 5683 | |
| 5684 CHECK_COND( cond_wait); | |
| 5685 CHECK_COND(_cond_wait); | |
| 5686 CHECK_COND(_cond_wait_cancel); | |
| 5687 | |
| 5688 #define CHECK_COND2(cond_op) \ | |
| 5689 CHECK_SYNCH_OP(int, cond_op, (cond_t *cv, mutex_t *mu, timestruc_t* ts), (cv, mu, ts), CHECK_MU;CHECK_CV); | |
| 5690 | |
| 5691 CHECK_COND2( cond_timedwait); | |
| 5692 CHECK_COND2(_cond_timedwait); | |
| 5693 CHECK_COND2(_cond_timedwait_cancel); | |
| 5694 | |
| 5695 // do the _lwp_* versions too | |
| 5696 #define mutex_t lwp_mutex_t | |
| 5697 #define cond_t lwp_cond_t | |
| 5698 CHECK_MUTEX( _lwp_mutex_lock) | |
| 5699 CHECK_MUTEX( _lwp_mutex_unlock) | |
| 5700 CHECK_MUTEX( _lwp_mutex_trylock) | |
| 5701 CHECK_MUTEX( __lwp_mutex_lock) | |
| 5702 CHECK_MUTEX( __lwp_mutex_unlock) | |
| 5703 CHECK_MUTEX( __lwp_mutex_trylock) | |
| 5704 CHECK_MUTEX(___lwp_mutex_lock) | |
| 5705 CHECK_MUTEX(___lwp_mutex_unlock) | |
| 5706 | |
| 5707 CHECK_COND( _lwp_cond_wait); | |
| 5708 CHECK_COND( __lwp_cond_wait); | |
| 5709 CHECK_COND(___lwp_cond_wait); | |
| 5710 | |
| 5711 CHECK_COND2( _lwp_cond_timedwait); | |
| 5712 CHECK_COND2( __lwp_cond_timedwait); | |
| 5713 #undef mutex_t | |
| 5714 #undef cond_t | |
| 5715 | |
| 5716 CHECK_SYNCH_OP(int, _lwp_suspend2, (int lwp, int *n), (lwp, n), 0); | |
| 5717 CHECK_SYNCH_OP(int,__lwp_suspend2, (int lwp, int *n), (lwp, n), 0); | |
| 5718 CHECK_SYNCH_OP(int, _lwp_kill, (int lwp, int n), (lwp, n), 0); | |
| 5719 CHECK_SYNCH_OP(int,__lwp_kill, (int lwp, int n), (lwp, n), 0); | |
| 5720 CHECK_SYNCH_OP(int, _lwp_sema_wait, (lwp_sema_t* p), (p), CHECK_P(p)); | |
| 5721 CHECK_SYNCH_OP(int,__lwp_sema_wait, (lwp_sema_t* p), (p), CHECK_P(p)); | |
| 5722 CHECK_SYNCH_OP(int, _lwp_cond_broadcast, (lwp_cond_t* cv), (cv), CHECK_CV); | |
| 5723 CHECK_SYNCH_OP(int,__lwp_cond_broadcast, (lwp_cond_t* cv), (cv), CHECK_CV); | |
| 5724 | |
| 5725 | |
| 5726 // recording machinery: | |
| 5727 | |
| 5728 enum { RECORD_SYNCH_LIMIT = 200 }; | |
| 5729 char* record_synch_name[RECORD_SYNCH_LIMIT]; | |
| 5730 void* record_synch_arg0ptr[RECORD_SYNCH_LIMIT]; | |
| 5731 bool record_synch_returning[RECORD_SYNCH_LIMIT]; | |
| 5732 thread_t record_synch_thread[RECORD_SYNCH_LIMIT]; | |
| 5733 int record_synch_count = 0; | |
| 5734 bool record_synch_enabled = false; | |
| 5735 | |
| 5736 // in dbx, examine recorded data this way: | |
| 5737 // for n in name arg0ptr returning thread; do print record_synch_$n[0..record_synch_count-1]; done | |
| 5738 | |
| 5739 void record_synch(char* name, bool returning) { | |
| 5740 if (record_synch_enabled) { | |
| 5741 if (record_synch_count < RECORD_SYNCH_LIMIT) { | |
| 5742 record_synch_name[record_synch_count] = name; | |
| 5743 record_synch_returning[record_synch_count] = returning; | |
| 5744 record_synch_thread[record_synch_count] = thr_self(); | |
| 5745 record_synch_arg0ptr[record_synch_count] = &name; | |
| 5746 record_synch_count++; | |
| 5747 } | |
| 5748 // put more checking code here: | |
| 5749 // ... | |
| 5750 } | |
| 5751 } | |
| 5752 | |
| 5753 void record_synch_enable() { | |
| 5754 // start collecting trace data, if not already doing so | |
| 5755 if (!record_synch_enabled) record_synch_count = 0; | |
| 5756 record_synch_enabled = true; | |
| 5757 } | |
| 5758 | |
| 5759 void record_synch_disable() { | |
| 5760 // stop collecting trace data | |
| 5761 record_synch_enabled = false; | |
| 5762 } | |
| 5763 | |
| 5764 #endif // INTERPOSE_ON_SYSTEM_SYNCH_FUNCTIONS | |
| 5765 #endif // PRODUCT | |
| 5766 | |
| 5767 const intptr_t thr_time_off = (intptr_t)(&((prusage_t *)(NULL))->pr_utime); | |
| 5768 const intptr_t thr_time_size = (intptr_t)(&((prusage_t *)(NULL))->pr_ttime) - | |
| 5769 (intptr_t)(&((prusage_t *)(NULL))->pr_utime); | |
| 5770 | |
| 5771 | |
| 5772 // JVMTI & JVM monitoring and management support | |
| 5773 // The thread_cpu_time() and current_thread_cpu_time() are only | |
| 5774 // supported if is_thread_cpu_time_supported() returns true. | |
| 5775 // They are not supported on Solaris T1. | |
| 5776 | |
| 5777 // current_thread_cpu_time(bool) and thread_cpu_time(Thread*, bool) | |
| 5778 // are used by JVM M&M and JVMTI to get user+sys or user CPU time | |
| 5779 // of a thread. | |
| 5780 // | |
| 5781 // current_thread_cpu_time() and thread_cpu_time(Thread *) | |
| 5782 // returns the fast estimate available on the platform. | |
| 5783 | |
| 5784 // hrtime_t gethrvtime() return value includes | |
| 5785 // user time but does not include system time | |
| 5786 jlong os::current_thread_cpu_time() { | |
| 5787 return (jlong) gethrvtime(); | |
| 5788 } | |
| 5789 | |
| 5790 jlong os::thread_cpu_time(Thread *thread) { | |
| 5791 // return user level CPU time only to be consistent with | |
| 5792 // what current_thread_cpu_time returns. | |
| 5793 // thread_cpu_time_info() must be changed if this changes | |
| 5794 return os::thread_cpu_time(thread, false /* user time only */); | |
| 5795 } | |
| 5796 | |
| 5797 jlong os::current_thread_cpu_time(bool user_sys_cpu_time) { | |
| 5798 if (user_sys_cpu_time) { | |
| 5799 return os::thread_cpu_time(Thread::current(), user_sys_cpu_time); | |
| 5800 } else { | |
| 5801 return os::current_thread_cpu_time(); | |
| 5802 } | |
| 5803 } | |
| 5804 | |
| 5805 jlong os::thread_cpu_time(Thread *thread, bool user_sys_cpu_time) { | |
| 5806 char proc_name[64]; | |
| 5807 int count; | |
| 5808 prusage_t prusage; | |
| 5809 jlong lwp_time; | |
| 5810 int fd; | |
| 5811 | |
| 5812 sprintf(proc_name, "/proc/%d/lwp/%d/lwpusage", | |
| 5813 getpid(), | |
| 5814 thread->osthread()->lwp_id()); | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5815 fd = ::open(proc_name, O_RDONLY); |
| 0 | 5816 if ( fd == -1 ) return -1; |
| 5817 | |
| 5818 do { | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5819 count = ::pread(fd, |
| 0 | 5820 (void *)&prusage.pr_utime, |
| 5821 thr_time_size, | |
| 5822 thr_time_off); | |
| 5823 } while (count < 0 && errno == EINTR); | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5824 ::close(fd); |
| 0 | 5825 if ( count < 0 ) return -1; |
| 5826 | |
| 5827 if (user_sys_cpu_time) { | |
| 5828 // user + system CPU time | |
| 5829 lwp_time = (((jlong)prusage.pr_stime.tv_sec + | |
| 5830 (jlong)prusage.pr_utime.tv_sec) * (jlong)1000000000) + | |
| 5831 (jlong)prusage.pr_stime.tv_nsec + | |
| 5832 (jlong)prusage.pr_utime.tv_nsec; | |
| 5833 } else { | |
| 5834 // user level CPU time only | |
| 5835 lwp_time = ((jlong)prusage.pr_utime.tv_sec * (jlong)1000000000) + | |
| 5836 (jlong)prusage.pr_utime.tv_nsec; | |
| 5837 } | |
| 5838 | |
| 5839 return(lwp_time); | |
| 5840 } | |
| 5841 | |
| 5842 void os::current_thread_cpu_time_info(jvmtiTimerInfo *info_ptr) { | |
| 5843 info_ptr->max_value = ALL_64_BITS; // will not wrap in less than 64 bits | |
| 5844 info_ptr->may_skip_backward = false; // elapsed time not wall time | |
| 5845 info_ptr->may_skip_forward = false; // elapsed time not wall time | |
| 5846 info_ptr->kind = JVMTI_TIMER_USER_CPU; // only user time is returned | |
| 5847 } | |
| 5848 | |
| 5849 void os::thread_cpu_time_info(jvmtiTimerInfo *info_ptr) { | |
| 5850 info_ptr->max_value = ALL_64_BITS; // will not wrap in less than 64 bits | |
| 5851 info_ptr->may_skip_backward = false; // elapsed time not wall time | |
| 5852 info_ptr->may_skip_forward = false; // elapsed time not wall time | |
| 5853 info_ptr->kind = JVMTI_TIMER_USER_CPU; // only user time is returned | |
| 5854 } | |
| 5855 | |
| 5856 bool os::is_thread_cpu_time_supported() { | |
| 5857 if ( os::Solaris::T2_libthread() || UseBoundThreads ) { | |
| 5858 return true; | |
| 5859 } else { | |
| 5860 return false; | |
| 5861 } | |
| 5862 } | |
| 5863 | |
| 5864 // System loadavg support. Returns -1 if load average cannot be obtained. | |
| 5865 // Return the load average for our processor set if the primitive exists | |
| 5866 // (Solaris 9 and later). Otherwise just return system wide loadavg. | |
| 5867 int os::loadavg(double loadavg[], int nelem) { | |
| 5868 if (pset_getloadavg_ptr != NULL) { | |
| 5869 return (*pset_getloadavg_ptr)(PS_MYID, loadavg, nelem); | |
| 5870 } else { | |
| 5871 return ::getloadavg(loadavg, nelem); | |
| 5872 } | |
| 5873 } | |
| 5874 | |
| 5875 //--------------------------------------------------------------------------------- | |
| 5876 | |
|
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bobv
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1642
diff
changeset
|
5877 bool os::find(address addr, outputStream* st) { |
| 0 | 5878 Dl_info dlinfo; |
| 5879 memset(&dlinfo, 0, sizeof(dlinfo)); | |
|
11092
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dcubed
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diff
changeset
|
5880 if (dladdr(addr, &dlinfo) != 0) { |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
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diff
changeset
|
5881 st->print(PTR_FORMAT ": ", addr); |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
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diff
changeset
|
5882 if (dlinfo.dli_sname != NULL && dlinfo.dli_saddr != NULL) { |
|
1681
126ea7725993
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bobv
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diff
changeset
|
5883 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:
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diff
changeset
|
5884 } else if (dlinfo.dli_fbase != NULL) |
|
1681
126ea7725993
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bobv
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diff
changeset
|
5885 st->print("<offset %#lx>", addr-(intptr_t)dlinfo.dli_fbase); |
| 0 | 5886 else |
|
1681
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diff
changeset
|
5887 st->print("<absolute address>"); |
|
11092
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
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diff
changeset
|
5888 if (dlinfo.dli_fname != NULL) { |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
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10986
diff
changeset
|
5889 st->print(" in %s", dlinfo.dli_fname); |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
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diff
changeset
|
5890 } |
|
59b052799158
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diff
changeset
|
5891 if (dlinfo.dli_fbase != NULL) { |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
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diff
changeset
|
5892 st->print(" at " PTR_FORMAT, dlinfo.dli_fbase); |
|
59b052799158
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diff
changeset
|
5893 } |
|
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|
5894 st->cr(); |
| 0 | 5895 |
| 5896 if (Verbose) { | |
| 5897 // decode some bytes around the PC | |
|
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mikael
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diff
changeset
|
5898 address begin = clamp_address_in_page(addr-40, addr, os::vm_page_size()); |
|
cc32ccaaf47f
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mikael
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|
5899 address end = clamp_address_in_page(addr+40, addr, os::vm_page_size()); |
| 0 | 5900 address lowest = (address) dlinfo.dli_sname; |
| 5901 if (!lowest) lowest = (address) dlinfo.dli_fbase; | |
| 5902 if (begin < lowest) begin = lowest; | |
| 5903 Dl_info dlinfo2; | |
|
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|
5904 if (dladdr(end, &dlinfo2) != 0 && dlinfo2.dli_saddr != dlinfo.dli_saddr |
| 0 | 5905 && end > dlinfo2.dli_saddr && dlinfo2.dli_saddr > begin) |
| 5906 end = (address) dlinfo2.dli_saddr; | |
|
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|
5907 Disassembler::decode(begin, end, st); |
| 0 | 5908 } |
| 5909 return true; | |
| 5910 } | |
| 5911 return false; | |
| 5912 } | |
| 5913 | |
| 5914 // Following function has been added to support HotSparc's libjvm.so running | |
| 5915 // under Solaris production JDK 1.2.2 / 1.3.0. These came from | |
| 5916 // src/solaris/hpi/native_threads in the EVM codebase. | |
| 5917 // | |
| 5918 // NOTE: This is no longer needed in the 1.3.1 and 1.4 production release | |
| 5919 // libraries and should thus be removed. We will leave it behind for a while | |
| 5920 // until we no longer want to able to run on top of 1.3.0 Solaris production | |
| 5921 // JDK. See 4341971. | |
| 5922 | |
| 5923 #define STACK_SLACK 0x800 | |
| 5924 | |
| 5925 extern "C" { | |
| 5926 intptr_t sysThreadAvailableStackWithSlack() { | |
| 5927 stack_t st; | |
| 5928 intptr_t retval, stack_top; | |
| 5929 retval = thr_stksegment(&st); | |
| 5930 assert(retval == 0, "incorrect return value from thr_stksegment"); | |
| 5931 assert((address)&st < (address)st.ss_sp, "Invalid stack base returned"); | |
| 5932 assert((address)&st > (address)st.ss_sp-st.ss_size, "Invalid stack size returned"); | |
| 5933 stack_top=(intptr_t)st.ss_sp-st.ss_size; | |
| 5934 return ((intptr_t)&stack_top - stack_top - STACK_SLACK); | |
| 5935 } | |
| 5936 } | |
| 5937 | |
| 5938 // ObjectMonitor park-unpark infrastructure ... | |
| 5939 // | |
| 5940 // We implement Solaris and Linux PlatformEvents with the | |
| 5941 // obvious condvar-mutex-flag triple. | |
| 5942 // Another alternative that works quite well is pipes: | |
| 5943 // Each PlatformEvent consists of a pipe-pair. | |
| 5944 // The thread associated with the PlatformEvent | |
| 5945 // calls park(), which reads from the input end of the pipe. | |
| 5946 // Unpark() writes into the other end of the pipe. | |
| 5947 // The write-side of the pipe must be set NDELAY. | |
| 5948 // Unfortunately pipes consume a large # of handles. | |
| 5949 // Native solaris lwp_park() and lwp_unpark() work nicely, too. | |
| 5950 // Using pipes for the 1st few threads might be workable, however. | |
| 5951 // | |
| 5952 // park() is permitted to return spuriously. | |
| 5953 // Callers of park() should wrap the call to park() in | |
| 5954 // an appropriate loop. A litmus test for the correct | |
| 5955 // usage of park is the following: if park() were modified | |
| 5956 // to immediately return 0 your code should still work, | |
| 5957 // albeit degenerating to a spin loop. | |
| 5958 // | |
| 5959 // An interesting optimization for park() is to use a trylock() | |
| 5960 // to attempt to acquire the mutex. If the trylock() fails | |
| 5961 // then we know that a concurrent unpark() operation is in-progress. | |
| 5962 // in that case the park() code could simply set _count to 0 | |
| 5963 // and return immediately. The subsequent park() operation *might* | |
| 5964 // return immediately. That's harmless as the caller of park() is | |
| 5965 // expected to loop. By using trylock() we will have avoided a | |
| 5966 // avoided a context switch caused by contention on the per-thread mutex. | |
| 5967 // | |
| 5968 // TODO-FIXME: | |
| 5969 // 1. Reconcile Doug's JSR166 j.u.c park-unpark with the | |
| 5970 // objectmonitor implementation. | |
| 5971 // 2. Collapse the JSR166 parker event, and the | |
| 5972 // objectmonitor ParkEvent into a single "Event" construct. | |
| 5973 // 3. In park() and unpark() add: | |
| 5974 // assert (Thread::current() == AssociatedWith). | |
| 5975 // 4. add spurious wakeup injection on a -XX:EarlyParkReturn=N switch. | |
| 5976 // 1-out-of-N park() operations will return immediately. | |
| 5977 // | |
| 5978 // _Event transitions in park() | |
| 5979 // -1 => -1 : illegal | |
| 5980 // 1 => 0 : pass - return immediately | |
| 5981 // 0 => -1 : block | |
| 5982 // | |
| 5983 // _Event serves as a restricted-range semaphore. | |
| 5984 // | |
| 5985 // Another possible encoding of _Event would be with | |
| 5986 // explicit "PARKED" == 01b and "SIGNALED" == 10b bits. | |
| 5987 // | |
| 5988 // TODO-FIXME: add DTRACE probes for: | |
| 5989 // 1. Tx parks | |
| 5990 // 2. Ty unparks Tx | |
| 5991 // 3. Tx resumes from park | |
| 5992 | |
| 5993 | |
| 5994 // value determined through experimentation | |
| 5995 #define ROUNDINGFIX 11 | |
| 5996 | |
| 5997 // utility to compute the abstime argument to timedwait. | |
| 5998 // TODO-FIXME: switch from compute_abstime() to unpackTime(). | |
| 5999 | |
| 6000 static timestruc_t* compute_abstime(timestruc_t* abstime, jlong millis) { | |
| 6001 // millis is the relative timeout time | |
| 6002 // abstime will be the absolute timeout time | |
| 6003 if (millis < 0) millis = 0; | |
| 6004 struct timeval now; | |
| 6005 int status = gettimeofday(&now, NULL); | |
| 6006 assert(status == 0, "gettimeofday"); | |
| 6007 jlong seconds = millis / 1000; | |
| 6008 jlong max_wait_period; | |
| 6009 | |
| 6010 if (UseLWPSynchronization) { | |
| 6011 // forward port of fix for 4275818 (not sleeping long enough) | |
| 6012 // There was a bug in Solaris 6, 7 and pre-patch 5 of 8 where | |
| 6013 // _lwp_cond_timedwait() used a round_down algorithm rather | |
| 6014 // than a round_up. For millis less than our roundfactor | |
| 6015 // it rounded down to 0 which doesn't meet the spec. | |
| 6016 // For millis > roundfactor we may return a bit sooner, but | |
| 6017 // since we can not accurately identify the patch level and | |
| 6018 // this has already been fixed in Solaris 9 and 8 we will | |
| 6019 // leave it alone rather than always rounding down. | |
| 6020 | |
| 6021 if (millis > 0 && millis < ROUNDINGFIX) millis = ROUNDINGFIX; | |
| 6022 // It appears that when we go directly through Solaris _lwp_cond_timedwait() | |
| 6023 // the acceptable max time threshold is smaller than for libthread on 2.5.1 and 2.6 | |
| 6024 max_wait_period = 21000000; | |
| 6025 } else { | |
| 6026 max_wait_period = 50000000; | |
| 6027 } | |
| 6028 millis %= 1000; | |
| 6029 if (seconds > max_wait_period) { // see man cond_timedwait(3T) | |
| 6030 seconds = max_wait_period; | |
| 6031 } | |
| 6032 abstime->tv_sec = now.tv_sec + seconds; | |
| 6033 long usec = now.tv_usec + millis * 1000; | |
| 6034 if (usec >= 1000000) { | |
| 6035 abstime->tv_sec += 1; | |
| 6036 usec -= 1000000; | |
| 6037 } | |
| 6038 abstime->tv_nsec = usec * 1000; | |
| 6039 return abstime; | |
| 6040 } | |
| 6041 | |
| 6042 // Test-and-clear _Event, always leaves _Event set to 0, returns immediately. | |
| 6043 // Conceptually TryPark() should be equivalent to park(0). | |
| 6044 | |
| 6045 int os::PlatformEvent::TryPark() { | |
| 6046 for (;;) { | |
| 6047 const int v = _Event ; | |
| 6048 guarantee ((v == 0) || (v == 1), "invariant") ; | |
| 6049 if (Atomic::cmpxchg (0, &_Event, v) == v) return v ; | |
| 6050 } | |
| 6051 } | |
| 6052 | |
| 6053 void os::PlatformEvent::park() { // AKA: down() | |
| 6054 // Invariant: Only the thread associated with the Event/PlatformEvent | |
| 6055 // may call park(). | |
| 6056 int v ; | |
| 6057 for (;;) { | |
| 6058 v = _Event ; | |
| 6059 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break ; | |
| 6060 } | |
| 6061 guarantee (v >= 0, "invariant") ; | |
| 6062 if (v == 0) { | |
| 6063 // Do this the hard way by blocking ... | |
| 6064 // See http://monaco.sfbay/detail.jsf?cr=5094058. | |
| 6065 // TODO-FIXME: for Solaris SPARC set fprs.FEF=0 prior to parking. | |
| 6066 // Only for SPARC >= V8PlusA | |
| 6067 #if defined(__sparc) && defined(COMPILER2) | |
| 6068 if (ClearFPUAtPark) { _mark_fpu_nosave() ; } | |
| 6069 #endif | |
| 6070 int status = os::Solaris::mutex_lock(_mutex); | |
| 6071 assert_status(status == 0, status, "mutex_lock"); | |
| 6072 guarantee (_nParked == 0, "invariant") ; | |
| 6073 ++ _nParked ; | |
| 6074 while (_Event < 0) { | |
| 6075 // for some reason, under 2.7 lwp_cond_wait() may return ETIME ... | |
| 6076 // Treat this the same as if the wait was interrupted | |
| 6077 // With usr/lib/lwp going to kernel, always handle ETIME | |
| 6078 status = os::Solaris::cond_wait(_cond, _mutex); | |
| 6079 if (status == ETIME) status = EINTR ; | |
| 6080 assert_status(status == 0 || status == EINTR, status, "cond_wait"); | |
| 6081 } | |
| 6082 -- _nParked ; | |
| 6083 _Event = 0 ; | |
| 6084 status = os::Solaris::mutex_unlock(_mutex); | |
| 6085 assert_status(status == 0, status, "mutex_unlock"); | |
|
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|
6086 // Paranoia to ensure our locked and lock-free paths interact |
|
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diff
changeset
|
6087 // correctly with each other. |
|
22ba8c8ce6a6
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diff
changeset
|
6088 OrderAccess::fence(); |
| 0 | 6089 } |
| 6090 } | |
| 6091 | |
| 6092 int os::PlatformEvent::park(jlong millis) { | |
| 6093 guarantee (_nParked == 0, "invariant") ; | |
| 6094 int v ; | |
| 6095 for (;;) { | |
| 6096 v = _Event ; | |
| 6097 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break ; | |
| 6098 } | |
| 6099 guarantee (v >= 0, "invariant") ; | |
| 6100 if (v != 0) return OS_OK ; | |
| 6101 | |
| 6102 int ret = OS_TIMEOUT; | |
| 6103 timestruc_t abst; | |
| 6104 compute_abstime (&abst, millis); | |
| 6105 | |
| 6106 // See http://monaco.sfbay/detail.jsf?cr=5094058. | |
| 6107 // For Solaris SPARC set fprs.FEF=0 prior to parking. | |
| 6108 // Only for SPARC >= V8PlusA | |
| 6109 #if defined(__sparc) && defined(COMPILER2) | |
| 6110 if (ClearFPUAtPark) { _mark_fpu_nosave() ; } | |
| 6111 #endif | |
| 6112 int status = os::Solaris::mutex_lock(_mutex); | |
| 6113 assert_status(status == 0, status, "mutex_lock"); | |
| 6114 guarantee (_nParked == 0, "invariant") ; | |
| 6115 ++ _nParked ; | |
| 6116 while (_Event < 0) { | |
| 6117 int status = os::Solaris::cond_timedwait(_cond, _mutex, &abst); | |
| 6118 assert_status(status == 0 || status == EINTR || | |
| 6119 status == ETIME || status == ETIMEDOUT, | |
| 6120 status, "cond_timedwait"); | |
| 6121 if (!FilterSpuriousWakeups) break ; // previous semantics | |
| 6122 if (status == ETIME || status == ETIMEDOUT) break ; | |
| 6123 // We consume and ignore EINTR and spurious wakeups. | |
| 6124 } | |
| 6125 -- _nParked ; | |
| 6126 if (_Event >= 0) ret = OS_OK ; | |
| 6127 _Event = 0 ; | |
| 6128 status = os::Solaris::mutex_unlock(_mutex); | |
| 6129 assert_status(status == 0, status, "mutex_unlock"); | |
|
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|
6130 // Paranoia to ensure our locked and lock-free paths interact |
|
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|
6131 // correctly with each other. |
|
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diff
changeset
|
6132 OrderAccess::fence(); |
| 0 | 6133 return ret; |
| 6134 } | |
| 6135 | |
| 6136 void os::PlatformEvent::unpark() { | |
|
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|
6137 // Transitions for _Event: |
|
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|
6138 // 0 :=> 1 |
|
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|
6139 // 1 :=> 1 |
|
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|
6140 // -1 :=> either 0 or 1; must signal target thread |
|
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|
6141 // That is, we can safely transition _Event from -1 to either |
|
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|
6142 // 0 or 1. Forcing 1 is slightly more efficient for back-to-back |
|
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|
6143 // unpark() calls. |
|
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|
6144 // See also: "Semaphores in Plan 9" by Mullender & Cox |
|
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|
6145 // |
|
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|
6146 // Note: Forcing a transition from "-1" to "1" on an unpark() means |
|
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|
6147 // that it will take two back-to-back park() calls for the owning |
|
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|
6148 // thread to block. This has the benefit of forcing a spurious return |
|
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|
6149 // from the first park() call after an unpark() call which will help |
|
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|
6150 // shake out uses of park() and unpark() without condition variables. |
|
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|
6151 |
|
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|
6152 if (Atomic::xchg(1, &_Event) >= 0) return; |
| 0 | 6153 |
| 6154 // If the thread associated with the event was parked, wake it. | |
|
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|
6155 // Wait for the thread assoc with the PlatformEvent to vacate. |
|
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|
6156 int status = os::Solaris::mutex_lock(_mutex); |
|
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|
6157 assert_status(status == 0, status, "mutex_lock"); |
|
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|
6158 int AnyWaiters = _nParked; |
|
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|
6159 status = os::Solaris::mutex_unlock(_mutex); |
|
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|
6160 assert_status(status == 0, status, "mutex_unlock"); |
|
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|
6161 guarantee(AnyWaiters == 0 || AnyWaiters == 1, "invariant"); |
|
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|
6162 if (AnyWaiters != 0) { |
|
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|
6163 // We intentional signal *after* dropping the lock |
|
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|
6164 // to avoid a common class of futile wakeups. |
|
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changeset
|
6165 status = os::Solaris::cond_signal(_cond); |
|
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7456
diff
changeset
|
6166 assert_status(status == 0, status, "cond_signal"); |
| 0 | 6167 } |
| 6168 } | |
| 6169 | |
| 6170 // JSR166 | |
| 6171 // ------------------------------------------------------- | |
| 6172 | |
| 6173 /* | |
| 6174 * The solaris and linux implementations of park/unpark are fairly | |
| 6175 * conservative for now, but can be improved. They currently use a | |
| 6176 * mutex/condvar pair, plus _counter. | |
| 6177 * Park decrements _counter if > 0, else does a condvar wait. Unpark | |
| 6178 * sets count to 1 and signals condvar. Only one thread ever waits | |
| 6179 * on the condvar. Contention seen when trying to park implies that someone | |
| 6180 * is unparking you, so don't wait. And spurious returns are fine, so there | |
| 6181 * is no need to track notifications. | |
| 6182 */ | |
| 6183 | |
| 6184 #define MAX_SECS 100000000 | |
| 6185 /* | |
| 6186 * This code is common to linux and solaris and will be moved to a | |
| 6187 * common place in dolphin. | |
| 6188 * | |
| 6189 * The passed in time value is either a relative time in nanoseconds | |
| 6190 * or an absolute time in milliseconds. Either way it has to be unpacked | |
| 6191 * into suitable seconds and nanoseconds components and stored in the | |
| 6192 * given timespec structure. | |
| 6193 * Given time is a 64-bit value and the time_t used in the timespec is only | |
| 6194 * a signed-32-bit value (except on 64-bit Linux) we have to watch for | |
| 6195 * overflow if times way in the future are given. Further on Solaris versions | |
| 6196 * prior to 10 there is a restriction (see cond_timedwait) that the specified | |
| 6197 * number of seconds, in abstime, is less than current_time + 100,000,000. | |
| 6198 * As it will be 28 years before "now + 100000000" will overflow we can | |
| 6199 * ignore overflow and just impose a hard-limit on seconds using the value | |
| 6200 * of "now + 100,000,000". This places a limit on the timeout of about 3.17 | |
| 6201 * years from "now". | |
| 6202 */ | |
| 6203 static void unpackTime(timespec* absTime, bool isAbsolute, jlong time) { | |
| 6204 assert (time > 0, "convertTime"); | |
| 6205 | |
| 6206 struct timeval now; | |
| 6207 int status = gettimeofday(&now, NULL); | |
| 6208 assert(status == 0, "gettimeofday"); | |
| 6209 | |
| 6210 time_t max_secs = now.tv_sec + MAX_SECS; | |
| 6211 | |
| 6212 if (isAbsolute) { | |
| 6213 jlong secs = time / 1000; | |
| 6214 if (secs > max_secs) { | |
| 6215 absTime->tv_sec = max_secs; | |
| 6216 } | |
| 6217 else { | |
| 6218 absTime->tv_sec = secs; | |
| 6219 } | |
| 6220 absTime->tv_nsec = (time % 1000) * NANOSECS_PER_MILLISEC; | |
| 6221 } | |
| 6222 else { | |
| 6223 jlong secs = time / NANOSECS_PER_SEC; | |
| 6224 if (secs >= MAX_SECS) { | |
| 6225 absTime->tv_sec = max_secs; | |
| 6226 absTime->tv_nsec = 0; | |
| 6227 } | |
| 6228 else { | |
| 6229 absTime->tv_sec = now.tv_sec + secs; | |
| 6230 absTime->tv_nsec = (time % NANOSECS_PER_SEC) + now.tv_usec*1000; | |
| 6231 if (absTime->tv_nsec >= NANOSECS_PER_SEC) { | |
| 6232 absTime->tv_nsec -= NANOSECS_PER_SEC; | |
| 6233 ++absTime->tv_sec; // note: this must be <= max_secs | |
| 6234 } | |
| 6235 } | |
| 6236 } | |
| 6237 assert(absTime->tv_sec >= 0, "tv_sec < 0"); | |
| 6238 assert(absTime->tv_sec <= max_secs, "tv_sec > max_secs"); | |
| 6239 assert(absTime->tv_nsec >= 0, "tv_nsec < 0"); | |
| 6240 assert(absTime->tv_nsec < NANOSECS_PER_SEC, "tv_nsec >= nanos_per_sec"); | |
| 6241 } | |
| 6242 | |
| 6243 void Parker::park(bool isAbsolute, jlong time) { | |
|
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|
6244 // Ideally we'd do something useful while spinning, such |
|
22ba8c8ce6a6
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dcubed
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7456
diff
changeset
|
6245 // as calling unpackTime(). |
| 0 | 6246 |
| 6247 // Optional fast-path check: | |
| 6248 // Return immediately if a permit is available. | |
|
7629
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diff
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|
6249 // We depend on Atomic::xchg() having full barrier semantics |
|
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
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7456
diff
changeset
|
6250 // since we are doing a lock-free update to _counter. |
|
22ba8c8ce6a6
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dcubed
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7456
diff
changeset
|
6251 if (Atomic::xchg(0, &_counter) > 0) return; |
| 0 | 6252 |
| 6253 // Optional fast-exit: Check interrupt before trying to wait | |
| 6254 Thread* thread = Thread::current(); | |
| 6255 assert(thread->is_Java_thread(), "Must be JavaThread"); | |
| 6256 JavaThread *jt = (JavaThread *)thread; | |
| 6257 if (Thread::is_interrupted(thread, false)) { | |
| 6258 return; | |
| 6259 } | |
| 6260 | |
| 6261 // First, demultiplex/decode time arguments | |
| 6262 timespec absTime; | |
|
1865
1c352af0135d
6763959: java.util.concurrent.locks.LockSupport.parkUntil(0) blocks forever
acorn
parents:
1681
diff
changeset
|
6263 if (time < 0 || (isAbsolute && time == 0) ) { // don't wait at all |
| 0 | 6264 return; |
| 6265 } | |
| 6266 if (time > 0) { | |
| 6267 // Warning: this code might be exposed to the old Solaris time | |
| 6268 // round-down bugs. Grep "roundingFix" for details. | |
| 6269 unpackTime(&absTime, isAbsolute, time); | |
| 6270 } | |
| 6271 | |
| 6272 // Enter safepoint region | |
| 6273 // Beware of deadlocks such as 6317397. | |
| 6274 // The per-thread Parker:: _mutex is a classic leaf-lock. | |
| 6275 // In particular a thread must never block on the Threads_lock while | |
| 6276 // holding the Parker:: mutex. If safepoints are pending both the | |
| 6277 // the ThreadBlockInVM() CTOR and DTOR may grab Threads_lock. | |
| 6278 ThreadBlockInVM tbivm(jt); | |
| 6279 | |
| 6280 // Don't wait if cannot get lock since interference arises from | |
| 6281 // unblocking. Also. check interrupt before trying wait | |
| 6282 if (Thread::is_interrupted(thread, false) || | |
| 6283 os::Solaris::mutex_trylock(_mutex) != 0) { | |
| 6284 return; | |
| 6285 } | |
| 6286 | |
| 6287 int status ; | |
| 6288 | |
| 6289 if (_counter > 0) { // no wait needed | |
| 6290 _counter = 0; | |
| 6291 status = os::Solaris::mutex_unlock(_mutex); | |
| 6292 assert (status == 0, "invariant") ; | |
|
7629
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|
6293 // Paranoia to ensure our locked and lock-free paths interact |
|
22ba8c8ce6a6
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7456
diff
changeset
|
6294 // 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
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894
diff
changeset
|
6295 OrderAccess::fence(); |
| 0 | 6296 return; |
| 6297 } | |
| 6298 | |
| 6299 #ifdef ASSERT | |
| 6300 // Don't catch signals while blocked; let the running threads have the signals. | |
| 6301 // (This allows a debugger to break into the running thread.) | |
| 6302 sigset_t oldsigs; | |
| 6303 sigset_t* allowdebug_blocked = os::Solaris::allowdebug_blocked_signals(); | |
| 6304 thr_sigsetmask(SIG_BLOCK, allowdebug_blocked, &oldsigs); | |
| 6305 #endif | |
| 6306 | |
| 6307 OSThreadWaitState osts(thread->osthread(), false /* not Object.wait() */); | |
| 6308 jt->set_suspend_equivalent(); | |
| 6309 // cleared by handle_special_suspend_equivalent_condition() or java_suspend_self() | |
| 6310 | |
| 6311 // Do this the hard way by blocking ... | |
| 6312 // See http://monaco.sfbay/detail.jsf?cr=5094058. | |
| 6313 // TODO-FIXME: for Solaris SPARC set fprs.FEF=0 prior to parking. | |
| 6314 // Only for SPARC >= V8PlusA | |
| 6315 #if defined(__sparc) && defined(COMPILER2) | |
| 6316 if (ClearFPUAtPark) { _mark_fpu_nosave() ; } | |
| 6317 #endif | |
| 6318 | |
| 6319 if (time == 0) { | |
| 6320 status = os::Solaris::cond_wait (_cond, _mutex) ; | |
| 6321 } else { | |
| 6322 status = os::Solaris::cond_timedwait (_cond, _mutex, &absTime); | |
| 6323 } | |
| 6324 // Note that an untimed cond_wait() can sometimes return ETIME on older | |
| 6325 // versions of the Solaris. | |
| 6326 assert_status(status == 0 || status == EINTR || | |
| 6327 status == ETIME || status == ETIMEDOUT, | |
| 6328 status, "cond_timedwait"); | |
| 6329 | |
| 6330 #ifdef ASSERT | |
| 6331 thr_sigsetmask(SIG_SETMASK, &oldsigs, NULL); | |
| 6332 #endif | |
| 6333 _counter = 0 ; | |
| 6334 status = os::Solaris::mutex_unlock(_mutex); | |
| 6335 assert_status(status == 0, status, "mutex_unlock") ; | |
|
7629
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|
6336 // Paranoia to ensure our locked and lock-free paths interact |
|
22ba8c8ce6a6
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parents:
7456
diff
changeset
|
6337 // correctly with each other and Java-level accesses. |
|
22ba8c8ce6a6
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dcubed
parents:
7456
diff
changeset
|
6338 OrderAccess::fence(); |
| 0 | 6339 |
| 6340 // If externally suspended while waiting, re-suspend | |
| 6341 if (jt->handle_special_suspend_equivalent_condition()) { | |
| 6342 jt->java_suspend_self(); | |
| 6343 } | |
| 6344 } | |
| 6345 | |
| 6346 void Parker::unpark() { | |
| 6347 int s, status ; | |
| 6348 status = os::Solaris::mutex_lock (_mutex) ; | |
| 6349 assert (status == 0, "invariant") ; | |
| 6350 s = _counter; | |
| 6351 _counter = 1; | |
| 6352 status = os::Solaris::mutex_unlock (_mutex) ; | |
| 6353 assert (status == 0, "invariant") ; | |
| 6354 | |
| 6355 if (s < 1) { | |
| 6356 status = os::Solaris::cond_signal (_cond) ; | |
| 6357 assert (status == 0, "invariant") ; | |
| 6358 } | |
| 6359 } | |
| 6360 | |
| 6361 extern char** environ; | |
| 6362 | |
| 6363 // Run the specified command in a separate process. Return its exit value, | |
| 6364 // or -1 on failure (e.g. can't fork a new process). | |
| 6365 // Unlike system(), this function can be called from signal handler. It | |
| 6366 // doesn't block SIGINT et al. | |
| 6367 int os::fork_and_exec(char* cmd) { | |
| 6368 char * argv[4]; | |
| 6369 argv[0] = (char *)"sh"; | |
| 6370 argv[1] = (char *)"-c"; | |
| 6371 argv[2] = cmd; | |
| 6372 argv[3] = NULL; | |
| 6373 | |
| 6374 // fork is async-safe, fork1 is not so can't use in signal handler | |
| 6375 pid_t pid; | |
| 6376 Thread* t = ThreadLocalStorage::get_thread_slow(); | |
| 6377 if (t != NULL && t->is_inside_signal_handler()) { | |
| 6378 pid = fork(); | |
| 6379 } else { | |
| 6380 pid = fork1(); | |
| 6381 } | |
| 6382 | |
| 6383 if (pid < 0) { | |
| 6384 // fork failed | |
| 6385 warning("fork failed: %s", strerror(errno)); | |
| 6386 return -1; | |
| 6387 | |
| 6388 } else if (pid == 0) { | |
| 6389 // child process | |
| 6390 | |
| 6391 // try to be consistent with system(), which uses "/usr/bin/sh" on Solaris | |
| 6392 execve("/usr/bin/sh", argv, environ); | |
| 6393 | |
| 6394 // execve failed | |
| 6395 _exit(-1); | |
| 6396 | |
| 6397 } else { | |
| 6398 // copied from J2SE ..._waitForProcessExit() in UNIXProcess_md.c; we don't | |
| 6399 // care about the actual exit code, for now. | |
| 6400 | |
| 6401 int status; | |
| 6402 | |
| 6403 // Wait for the child process to exit. This returns immediately if | |
| 6404 // the child has already exited. */ | |
| 6405 while (waitpid(pid, &status, 0) < 0) { | |
| 6406 switch (errno) { | |
| 6407 case ECHILD: return 0; | |
| 6408 case EINTR: break; | |
| 6409 default: return -1; | |
| 6410 } | |
| 6411 } | |
| 6412 | |
| 6413 if (WIFEXITED(status)) { | |
| 6414 // The child exited normally; get its exit code. | |
| 6415 return WEXITSTATUS(status); | |
| 6416 } else if (WIFSIGNALED(status)) { | |
| 6417 // The child exited because of a signal | |
| 6418 // The best value to return is 0x80 + signal number, | |
| 6419 // because that is what all Unix shells do, and because | |
| 6420 // it allows callers to distinguish between process exit and | |
| 6421 // process death by signal. | |
| 6422 return 0x80 + WTERMSIG(status); | |
| 6423 } else { | |
| 6424 // Unknown exit code; pass it through | |
| 6425 return status; | |
| 6426 } | |
| 6427 } | |
| 6428 } | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6429 |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6430 // is_headless_jre() |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6431 // |
|
4082
36b057451829
7110017: is_headless_jre should be updated to reflect the new location of awt toolkit libraries
dholmes
parents:
4006
diff
changeset
|
6432 // 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
|
6433 // 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
|
6434 // |
|
4082
36b057451829
7110017: is_headless_jre should be updated to reflect the new location of awt toolkit libraries
dholmes
parents:
4006
diff
changeset
|
6435 // 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
|
6436 // 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
|
6437 // |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6438 bool os::is_headless_jre() { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6439 struct stat statbuf; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6440 char buf[MAXPATHLEN]; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6441 char libmawtpath[MAXPATHLEN]; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6442 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
|
6443 const char *new_xawtstr = "/libawt_xawt.so"; |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6444 char *p; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6445 |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6446 // Get path to libjvm.so |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6447 os::jvm_path(buf, sizeof(buf)); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6448 |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6449 // Get rid of libjvm.so |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6450 p = strrchr(buf, '/'); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6451 if (p == NULL) return false; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6452 else *p = '\0'; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6453 |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6454 // Get rid of client or server |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6455 p = strrchr(buf, '/'); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6456 if (p == NULL) return false; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6457 else *p = '\0'; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6458 |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6459 // check xawt/libmawt.so |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6460 strcpy(libmawtpath, buf); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6461 strcat(libmawtpath, xawtstr); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6462 if (::stat(libmawtpath, &statbuf) == 0) return false; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6463 |
|
4082
36b057451829
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dholmes
parents:
4006
diff
changeset
|
6464 // check libawt_xawt.so |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6465 strcpy(libmawtpath, buf); |
|
4082
36b057451829
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dholmes
parents:
4006
diff
changeset
|
6466 strcat(libmawtpath, new_xawtstr); |
|
1681
126ea7725993
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bobv
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diff
changeset
|
6467 if (::stat(libmawtpath, &statbuf) == 0) return false; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6468 |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6469 return true; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6470 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6471 |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6472 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
|
6473 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
|
6474 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6475 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6476 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
|
6477 return ::close(fd); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6478 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6479 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6480 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
|
6481 return ::close(fd); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6482 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6483 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6484 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
|
6485 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
|
6486 } |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6487 |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6488 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
|
6489 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
|
6490 } |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6491 |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6492 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
|
6493 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
|
6494 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6495 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6496 // 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
|
6497 // 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
|
6498 // 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
|
6499 // "wait forever" value. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6500 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6501 int os::timeout(int fd, long timeout) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6502 int res; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6503 struct timeval t; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6504 julong prevtime, newtime; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6505 static const char* aNull = 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6506 struct pollfd pfd; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6507 pfd.fd = fd; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6508 pfd.events = POLLIN; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6509 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6510 gettimeofday(&t, &aNull); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6511 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
|
6512 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6513 for(;;) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6514 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
|
6515 if(res == OS_ERR && errno == EINTR) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6516 if(timeout != -1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6517 gettimeofday(&t, &aNull); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6518 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
|
6519 timeout -= newtime - prevtime; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6520 if(timeout <= 0) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6521 return OS_OK; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6522 prevtime = newtime; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6523 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6524 } else return res; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6525 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6526 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6527 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6528 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
|
6529 int _result; |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6530 INTERRUPTIBLE_NORESTART(::connect(fd, him, len), _result,\ |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6531 os::Solaris::clear_interrupted); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6532 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6533 // 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
|
6534 // one of two values when errno == EINTR |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6535 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6536 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
|
6537 && (errno == EINTR)) { |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6538 /* 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
|
6539 INTERRUPTIBLE(::connect(fd, him, len), _result,\ |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6540 os::Solaris::clear_interrupted); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6541 /* undo these changes */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6542 if (_result == OS_ERR) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6543 if (errno == EALREADY) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6544 errno = EINPROGRESS; /* fall through */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6545 } else if (errno == EISCONN) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6546 errno = 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6547 return OS_OK; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6548 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6549 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6550 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6551 return _result; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6552 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6553 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6554 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
|
6555 if (fd < 0) { |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6556 return OS_ERR; |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6557 } |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6558 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
|
6559 os::Solaris::clear_interrupted); |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6560 } |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6561 |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6562 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
|
6563 sockaddr* from, socklen_t* fromlen) { |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6564 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
|
6565 os::Solaris::clear_interrupted); |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6566 } |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6567 |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6568 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
|
6569 struct sockaddr* to, socklen_t tolen) { |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6570 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
|
6571 os::Solaris::clear_interrupted); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6572 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6573 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6574 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
|
6575 if (fd < 0) { |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6576 return OS_OK; |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6577 } |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6578 int ret; |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6579 RESTARTABLE(::ioctl(fd, FIONREAD, pbytes), ret); |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6580 // 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
|
6581 // 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
|
6582 return (ret == OS_ERR) ? 0 : 1; |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6583 } |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6584 |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6585 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
|
6586 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
|
6587 os::Solaris::clear_interrupted); |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6588 } |
|
6200
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6589 |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6590 // Get the default path to the core file |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6591 // Returns the length of the string |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6592 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
|
6593 const char* p = get_current_directory(buffer, bufferSize); |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6594 |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6595 if (p == NULL) { |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6596 assert(p != NULL, "failed to get current directory"); |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6597 return 0; |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6598 } |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6599 |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6600 return strlen(buffer); |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
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6197
diff
changeset
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6601 } |
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12110
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
11112
diff
changeset
|
6602 |
|
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
11112
diff
changeset
|
6603 #ifndef PRODUCT |
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4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
11112
diff
changeset
|
6604 void TestReserveMemorySpecial_test() { |
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4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
11112
diff
changeset
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6605 // No tests available for this platform |
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4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
11112
diff
changeset
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6606 } |
|
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
11112
diff
changeset
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6607 #endif |