Mercurial > hg > graal-jvmci-8
annotate src/os/solaris/vm/os_solaris.cpp @ 23489:b40d68340feb
8144483: One long Safepoint pause directly after each GC log rotation
Reviewed-by: dholmes
Contributed-by: cheleswer.sahu@oracle.com
| author | kevinw |
|---|---|
| date | Fri, 08 Jan 2016 05:28:21 -0800 |
| parents | 3ad3f93fe3d2 |
| children | b5f3a471e646 ebd6745380b9 |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
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2 * Copyright (c) 1997, 2015, 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" | |
|
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51 #include "runtime/orderAccess.inline.hpp" |
| 1972 | 52 #include "runtime/osThread.hpp" |
| 53 #include "runtime/perfMemory.hpp" | |
| 54 #include "runtime/sharedRuntime.hpp" | |
| 55 #include "runtime/statSampler.hpp" | |
| 56 #include "runtime/stubRoutines.hpp" | |
|
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57 #include "runtime/thread.inline.hpp" |
| 1972 | 58 #include "runtime/threadCritical.hpp" |
| 59 #include "runtime/timer.hpp" | |
| 60 #include "services/attachListener.hpp" | |
|
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61 #include "services/memTracker.hpp" |
| 1972 | 62 #include "services/runtimeService.hpp" |
|
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63 #include "utilities/decoder.hpp" |
| 1972 | 64 #include "utilities/defaultStream.hpp" |
| 65 #include "utilities/events.hpp" | |
| 66 #include "utilities/growableArray.hpp" | |
| 67 #include "utilities/vmError.hpp" | |
| 0 | 68 |
| 69 // put OS-includes here | |
| 70 # include <dlfcn.h> | |
| 71 # include <errno.h> | |
|
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72 # include <exception> |
| 0 | 73 # include <link.h> |
| 74 # include <poll.h> | |
| 75 # include <pthread.h> | |
| 76 # include <pwd.h> | |
| 77 # include <schedctl.h> | |
| 78 # include <setjmp.h> | |
| 79 # include <signal.h> | |
| 80 # include <stdio.h> | |
| 81 # include <alloca.h> | |
| 82 # include <sys/filio.h> | |
| 83 # include <sys/ipc.h> | |
| 84 # include <sys/lwp.h> | |
| 85 # include <sys/machelf.h> // for elf Sym structure used by dladdr1 | |
| 86 # include <sys/mman.h> | |
| 87 # include <sys/processor.h> | |
| 88 # include <sys/procset.h> | |
| 89 # include <sys/pset.h> | |
| 90 # include <sys/resource.h> | |
| 91 # include <sys/shm.h> | |
| 92 # include <sys/socket.h> | |
| 93 # include <sys/stat.h> | |
| 94 # include <sys/systeminfo.h> | |
| 95 # include <sys/time.h> | |
| 96 # include <sys/times.h> | |
| 97 # include <sys/types.h> | |
| 98 # include <sys/wait.h> | |
| 99 # include <sys/utsname.h> | |
| 100 # include <thread.h> | |
| 101 # include <unistd.h> | |
| 102 # include <sys/priocntl.h> | |
| 103 # include <sys/rtpriocntl.h> | |
| 104 # include <sys/tspriocntl.h> | |
| 105 # include <sys/iapriocntl.h> | |
|
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106 # include <sys/fxpriocntl.h> |
| 0 | 107 # include <sys/loadavg.h> |
| 108 # include <string.h> | |
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109 # include <stdio.h> |
| 0 | 110 |
| 111 # define _STRUCTURED_PROC 1 // this gets us the new structured proc interfaces of 5.6 & later | |
| 112 # include <sys/procfs.h> // see comment in <sys/procfs.h> | |
| 113 | |
| 114 #define MAX_PATH (2 * K) | |
| 115 | |
| 116 // for timer info max values which include all bits | |
| 117 #define ALL_64_BITS CONST64(0xFFFFFFFFFFFFFFFF) | |
| 118 | |
| 119 | |
| 120 // Here are some liblgrp types from sys/lgrp_user.h to be able to | |
| 121 // compile on older systems without this header file. | |
| 122 | |
| 123 #ifndef MADV_ACCESS_LWP | |
| 124 # define MADV_ACCESS_LWP 7 /* next LWP to access heavily */ | |
| 125 #endif | |
| 126 #ifndef MADV_ACCESS_MANY | |
| 127 # define MADV_ACCESS_MANY 8 /* many processes to access heavily */ | |
| 128 #endif | |
| 129 | |
|
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130 #ifndef LGRP_RSRC_CPU |
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131 # define LGRP_RSRC_CPU 0 /* CPU resources */ |
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132 #endif |
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133 #ifndef LGRP_RSRC_MEM |
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134 # define LGRP_RSRC_MEM 1 /* memory resources */ |
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135 #endif |
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136 |
| 0 | 137 // see thr_setprio(3T) for the basis of these numbers |
| 138 #define MinimumPriority 0 | |
| 139 #define NormalPriority 64 | |
| 140 #define MaximumPriority 127 | |
| 141 | |
| 142 // Values for ThreadPriorityPolicy == 1 | |
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143 int prio_policy1[CriticalPriority+1] = { |
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144 -99999, 0, 16, 32, 48, 64, |
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145 80, 96, 112, 124, 127, 127 }; |
| 0 | 146 |
| 147 // System parameters used internally | |
| 148 static clock_t clock_tics_per_sec = 100; | |
| 149 | |
|
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150 // Track if we have called enable_extended_FILE_stdio (on Solaris 10u4+) |
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151 static bool enabled_extended_FILE_stdio = false; |
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152 |
| 0 | 153 // For diagnostics to print a message once. see run_periodic_checks |
| 154 static bool check_addr0_done = false; | |
| 155 static sigset_t check_signal_done; | |
| 156 static bool check_signals = true; | |
| 157 | |
| 158 address os::Solaris::handler_start; // start pc of thr_sighndlrinfo | |
| 159 address os::Solaris::handler_end; // end pc of thr_sighndlrinfo | |
| 160 | |
| 161 address os::Solaris::_main_stack_base = NULL; // 4352906 workaround | |
| 162 | |
| 163 | |
| 164 // "default" initializers for missing libc APIs | |
| 165 extern "C" { | |
| 166 static int lwp_mutex_init(mutex_t *mx, int scope, void *arg) { memset(mx, 0, sizeof(mutex_t)); return 0; } | |
| 167 static int lwp_mutex_destroy(mutex_t *mx) { return 0; } | |
| 168 | |
| 169 static int lwp_cond_init(cond_t *cv, int scope, void *arg){ memset(cv, 0, sizeof(cond_t)); return 0; } | |
| 170 static int lwp_cond_destroy(cond_t *cv) { return 0; } | |
| 171 } | |
| 172 | |
| 173 // "default" initializers for pthread-based synchronization | |
| 174 extern "C" { | |
| 175 static int pthread_mutex_default_init(mutex_t *mx, int scope, void *arg) { memset(mx, 0, sizeof(mutex_t)); return 0; } | |
| 176 static int pthread_cond_default_init(cond_t *cv, int scope, void *arg){ memset(cv, 0, sizeof(cond_t)); return 0; } | |
| 177 } | |
| 178 | |
| 10405 | 179 static void unpackTime(timespec* absTime, bool isAbsolute, jlong time); |
| 180 | |
| 0 | 181 static inline size_t adjust_stack_size(address base, size_t size) { |
| 182 if ((ssize_t)size < 0) { | |
| 183 // 4759953: Compensate for ridiculous stack size. | |
| 184 size = max_intx; | |
| 185 } | |
| 186 if (size > (size_t)base) { | |
| 187 // 4812466: Make sure size doesn't allow the stack to wrap the address space. | |
| 188 size = (size_t)base; | |
| 189 } | |
| 190 return size; | |
| 191 } | |
| 192 | |
| 193 static inline stack_t get_stack_info() { | |
| 194 stack_t st; | |
| 195 int retval = thr_stksegment(&st); | |
| 196 st.ss_size = adjust_stack_size((address)st.ss_sp, st.ss_size); | |
| 197 assert(retval == 0, "incorrect return value from thr_stksegment"); | |
| 198 assert((address)&st < (address)st.ss_sp, "Invalid stack base returned"); | |
| 199 assert((address)&st > (address)st.ss_sp-st.ss_size, "Invalid stack size returned"); | |
| 200 return st; | |
| 201 } | |
| 202 | |
| 203 address os::current_stack_base() { | |
| 204 int r = thr_main() ; | |
| 205 guarantee (r == 0 || r == 1, "CR6501650 or CR6493689") ; | |
| 206 bool is_primordial_thread = r; | |
| 207 | |
| 208 // Workaround 4352906, avoid calls to thr_stksegment by | |
| 209 // thr_main after the first one (it looks like we trash | |
| 210 // some data, causing the value for ss_sp to be incorrect). | |
| 211 if (!is_primordial_thread || os::Solaris::_main_stack_base == NULL) { | |
| 212 stack_t st = get_stack_info(); | |
| 213 if (is_primordial_thread) { | |
| 214 // cache initial value of stack base | |
| 215 os::Solaris::_main_stack_base = (address)st.ss_sp; | |
| 216 } | |
| 217 return (address)st.ss_sp; | |
| 218 } else { | |
| 219 guarantee(os::Solaris::_main_stack_base != NULL, "Attempt to use null cached stack base"); | |
| 220 return os::Solaris::_main_stack_base; | |
| 221 } | |
| 222 } | |
| 223 | |
| 224 size_t os::current_stack_size() { | |
| 225 size_t size; | |
| 226 | |
| 227 int r = thr_main() ; | |
| 228 guarantee (r == 0 || r == 1, "CR6501650 or CR6493689") ; | |
| 229 if(!r) { | |
| 230 size = get_stack_info().ss_size; | |
| 231 } else { | |
| 232 struct rlimit limits; | |
| 233 getrlimit(RLIMIT_STACK, &limits); | |
| 234 size = adjust_stack_size(os::Solaris::_main_stack_base, (size_t)limits.rlim_cur); | |
| 235 } | |
| 236 // base may not be page aligned | |
| 237 address base = current_stack_base(); | |
| 238 address bottom = (address)align_size_up((intptr_t)(base - size), os::vm_page_size());; | |
| 239 return (size_t)(base - bottom); | |
| 240 } | |
| 241 | |
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242 struct tm* os::localtime_pd(const time_t* clock, struct tm* res) { |
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243 return localtime_r(clock, res); |
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244 } |
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245 |
| 0 | 246 // interruptible infrastructure |
| 247 | |
| 248 // setup_interruptible saves the thread state before going into an | |
| 249 // interruptible system call. | |
| 250 // The saved state is used to restore the thread to | |
| 251 // its former state whether or not an interrupt is received. | |
| 252 // Used by classloader os::read | |
|
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253 // os::restartable_read calls skip this layer and stay in _thread_in_native |
| 0 | 254 |
| 255 void os::Solaris::setup_interruptible(JavaThread* thread) { | |
| 256 | |
| 257 JavaThreadState thread_state = thread->thread_state(); | |
| 258 | |
| 259 assert(thread_state != _thread_blocked, "Coming from the wrong thread"); | |
| 260 assert(thread_state != _thread_in_native, "Native threads skip setup_interruptible"); | |
| 261 OSThread* osthread = thread->osthread(); | |
| 262 osthread->set_saved_interrupt_thread_state(thread_state); | |
| 263 thread->frame_anchor()->make_walkable(thread); | |
| 264 ThreadStateTransition::transition(thread, thread_state, _thread_blocked); | |
| 265 } | |
| 266 | |
| 267 // Version of setup_interruptible() for threads that are already in | |
| 268 // _thread_blocked. Used by os_sleep(). | |
| 269 void os::Solaris::setup_interruptible_already_blocked(JavaThread* thread) { | |
| 270 thread->frame_anchor()->make_walkable(thread); | |
| 271 } | |
| 272 | |
| 273 JavaThread* os::Solaris::setup_interruptible() { | |
| 274 JavaThread* thread = (JavaThread*)ThreadLocalStorage::thread(); | |
| 275 setup_interruptible(thread); | |
| 276 return thread; | |
| 277 } | |
| 278 | |
| 279 void os::Solaris::try_enable_extended_io() { | |
| 280 typedef int (*enable_extended_FILE_stdio_t)(int, int); | |
| 281 | |
| 282 if (!UseExtendedFileIO) { | |
| 283 return; | |
| 284 } | |
| 285 | |
| 286 enable_extended_FILE_stdio_t enabler = | |
| 287 (enable_extended_FILE_stdio_t) dlsym(RTLD_DEFAULT, | |
| 288 "enable_extended_FILE_stdio"); | |
| 289 if (enabler) { | |
| 290 enabler(-1, -1); | |
| 291 } | |
| 292 } | |
| 293 | |
| 294 | |
| 295 #ifdef ASSERT | |
| 296 | |
| 297 JavaThread* os::Solaris::setup_interruptible_native() { | |
| 298 JavaThread* thread = (JavaThread*)ThreadLocalStorage::thread(); | |
| 299 JavaThreadState thread_state = thread->thread_state(); | |
| 300 assert(thread_state == _thread_in_native, "Assumed thread_in_native"); | |
| 301 return thread; | |
| 302 } | |
| 303 | |
| 304 void os::Solaris::cleanup_interruptible_native(JavaThread* thread) { | |
| 305 JavaThreadState thread_state = thread->thread_state(); | |
| 306 assert(thread_state == _thread_in_native, "Assumed thread_in_native"); | |
| 307 } | |
| 308 #endif | |
| 309 | |
| 310 // cleanup_interruptible reverses the effects of setup_interruptible | |
| 311 // setup_interruptible_already_blocked() does not need any cleanup. | |
| 312 | |
| 313 void os::Solaris::cleanup_interruptible(JavaThread* thread) { | |
| 314 OSThread* osthread = thread->osthread(); | |
| 315 | |
| 316 ThreadStateTransition::transition(thread, _thread_blocked, osthread->saved_interrupt_thread_state()); | |
| 317 } | |
| 318 | |
| 319 // I/O interruption related counters called in _INTERRUPTIBLE | |
| 320 | |
| 321 void os::Solaris::bump_interrupted_before_count() { | |
| 322 RuntimeService::record_interrupted_before_count(); | |
| 323 } | |
| 324 | |
| 325 void os::Solaris::bump_interrupted_during_count() { | |
| 326 RuntimeService::record_interrupted_during_count(); | |
| 327 } | |
| 328 | |
| 329 static int _processors_online = 0; | |
| 330 | |
| 331 jint os::Solaris::_os_thread_limit = 0; | |
| 332 volatile jint os::Solaris::_os_thread_count = 0; | |
| 333 | |
| 334 julong os::available_memory() { | |
| 335 return Solaris::available_memory(); | |
| 336 } | |
| 337 | |
| 338 julong os::Solaris::available_memory() { | |
| 339 return (julong)sysconf(_SC_AVPHYS_PAGES) * os::vm_page_size(); | |
| 340 } | |
| 341 | |
| 342 julong os::Solaris::_physical_memory = 0; | |
| 343 | |
| 344 julong os::physical_memory() { | |
| 345 return Solaris::physical_memory(); | |
| 346 } | |
| 347 | |
| 348 static hrtime_t first_hrtime = 0; | |
| 349 static const hrtime_t hrtime_hz = 1000*1000*1000; | |
| 350 static volatile hrtime_t max_hrtime = 0; | |
| 351 | |
| 352 | |
| 353 void os::Solaris::initialize_system_info() { | |
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354 set_processor_count(sysconf(_SC_NPROCESSORS_CONF)); |
| 0 | 355 _processors_online = sysconf (_SC_NPROCESSORS_ONLN); |
| 356 _physical_memory = (julong)sysconf(_SC_PHYS_PAGES) * (julong)sysconf(_SC_PAGESIZE); | |
| 357 } | |
| 358 | |
| 359 int os::active_processor_count() { | |
| 360 int online_cpus = sysconf(_SC_NPROCESSORS_ONLN); | |
| 361 pid_t pid = getpid(); | |
| 362 psetid_t pset = PS_NONE; | |
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363 // Are we running in a processor set or is there any processor set around? |
| 0 | 364 if (pset_bind(PS_QUERY, P_PID, pid, &pset) == 0) { |
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365 uint_t pset_cpus; |
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366 // Query the number of cpus available to us. |
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367 if (pset_info(pset, NULL, &pset_cpus, NULL) == 0) { |
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368 assert(pset_cpus > 0 && pset_cpus <= online_cpus, "sanity check"); |
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369 _processors_online = pset_cpus; |
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370 return pset_cpus; |
| 0 | 371 } |
| 372 } | |
| 373 // Otherwise return number of online cpus | |
| 374 return online_cpus; | |
| 375 } | |
| 376 | |
| 377 static bool find_processors_in_pset(psetid_t pset, | |
| 378 processorid_t** id_array, | |
| 379 uint_t* id_length) { | |
| 380 bool result = false; | |
| 381 // Find the number of processors in the processor set. | |
| 382 if (pset_info(pset, NULL, id_length, NULL) == 0) { | |
| 383 // Make up an array to hold their ids. | |
| 6197 | 384 *id_array = NEW_C_HEAP_ARRAY(processorid_t, *id_length, mtInternal); |
| 0 | 385 // Fill in the array with their processor ids. |
| 386 if (pset_info(pset, NULL, id_length, *id_array) == 0) { | |
| 387 result = true; | |
| 388 } | |
| 389 } | |
| 390 return result; | |
| 391 } | |
| 392 | |
| 393 // Callers of find_processors_online() must tolerate imprecise results -- | |
| 394 // the system configuration can change asynchronously because of DR | |
| 395 // or explicit psradm operations. | |
| 396 // | |
| 397 // We also need to take care that the loop (below) terminates as the | |
| 398 // number of processors online can change between the _SC_NPROCESSORS_ONLN | |
| 399 // request and the loop that builds the list of processor ids. Unfortunately | |
| 400 // there's no reliable way to determine the maximum valid processor id, | |
| 401 // so we use a manifest constant, MAX_PROCESSOR_ID, instead. See p_online | |
| 402 // man pages, which claim the processor id set is "sparse, but | |
| 403 // not too sparse". MAX_PROCESSOR_ID is used to ensure that we eventually | |
| 404 // exit the loop. | |
| 405 // | |
| 406 // In the future we'll be able to use sysconf(_SC_CPUID_MAX), but that's | |
| 407 // not available on S8.0. | |
| 408 | |
| 409 static bool find_processors_online(processorid_t** id_array, | |
| 410 uint* id_length) { | |
| 411 const processorid_t MAX_PROCESSOR_ID = 100000 ; | |
| 412 // Find the number of processors online. | |
| 413 *id_length = sysconf(_SC_NPROCESSORS_ONLN); | |
| 414 // Make up an array to hold their ids. | |
| 6197 | 415 *id_array = NEW_C_HEAP_ARRAY(processorid_t, *id_length, mtInternal); |
| 0 | 416 // Processors need not be numbered consecutively. |
| 417 long found = 0; | |
| 418 processorid_t next = 0; | |
| 419 while (found < *id_length && next < MAX_PROCESSOR_ID) { | |
| 420 processor_info_t info; | |
| 421 if (processor_info(next, &info) == 0) { | |
| 422 // NB, PI_NOINTR processors are effectively online ... | |
| 423 if (info.pi_state == P_ONLINE || info.pi_state == P_NOINTR) { | |
| 424 (*id_array)[found] = next; | |
| 425 found += 1; | |
| 426 } | |
| 427 } | |
| 428 next += 1; | |
| 429 } | |
| 430 if (found < *id_length) { | |
| 431 // The loop above didn't identify the expected number of processors. | |
| 432 // We could always retry the operation, calling sysconf(_SC_NPROCESSORS_ONLN) | |
| 433 // and re-running the loop, above, but there's no guarantee of progress | |
| 434 // if the system configuration is in flux. Instead, we just return what | |
| 435 // we've got. Note that in the worst case find_processors_online() could | |
| 436 // return an empty set. (As a fall-back in the case of the empty set we | |
| 437 // could just return the ID of the current processor). | |
| 438 *id_length = found ; | |
| 439 } | |
| 440 | |
| 441 return true; | |
| 442 } | |
| 443 | |
| 444 static bool assign_distribution(processorid_t* id_array, | |
| 445 uint id_length, | |
| 446 uint* distribution, | |
| 447 uint distribution_length) { | |
| 448 // We assume we can assign processorid_t's to uint's. | |
| 449 assert(sizeof(processorid_t) == sizeof(uint), | |
| 450 "can't convert processorid_t to uint"); | |
| 451 // Quick check to see if we won't succeed. | |
| 452 if (id_length < distribution_length) { | |
| 453 return false; | |
| 454 } | |
| 455 // Assign processor ids to the distribution. | |
| 456 // Try to shuffle processors to distribute work across boards, | |
| 457 // assuming 4 processors per board. | |
| 458 const uint processors_per_board = ProcessDistributionStride; | |
| 459 // Find the maximum processor id. | |
| 460 processorid_t max_id = 0; | |
| 461 for (uint m = 0; m < id_length; m += 1) { | |
| 462 max_id = MAX2(max_id, id_array[m]); | |
| 463 } | |
| 464 // The next id, to limit loops. | |
| 465 const processorid_t limit_id = max_id + 1; | |
| 466 // Make up markers for available processors. | |
| 6197 | 467 bool* available_id = NEW_C_HEAP_ARRAY(bool, limit_id, mtInternal); |
| 0 | 468 for (uint c = 0; c < limit_id; c += 1) { |
| 469 available_id[c] = false; | |
| 470 } | |
| 471 for (uint a = 0; a < id_length; a += 1) { | |
| 472 available_id[id_array[a]] = true; | |
| 473 } | |
| 474 // Step by "boards", then by "slot", copying to "assigned". | |
| 475 // NEEDS_CLEANUP: The assignment of processors should be stateful, | |
| 476 // remembering which processors have been assigned by | |
| 477 // previous calls, etc., so as to distribute several | |
| 478 // independent calls of this method. What we'd like is | |
| 479 // It would be nice to have an API that let us ask | |
| 480 // how many processes are bound to a processor, | |
| 481 // but we don't have that, either. | |
| 482 // In the short term, "board" is static so that | |
| 483 // subsequent distributions don't all start at board 0. | |
| 484 static uint board = 0; | |
| 485 uint assigned = 0; | |
| 486 // Until we've found enough processors .... | |
| 487 while (assigned < distribution_length) { | |
| 488 // ... find the next available processor in the board. | |
| 489 for (uint slot = 0; slot < processors_per_board; slot += 1) { | |
| 490 uint try_id = board * processors_per_board + slot; | |
| 491 if ((try_id < limit_id) && (available_id[try_id] == true)) { | |
| 492 distribution[assigned] = try_id; | |
| 493 available_id[try_id] = false; | |
| 494 assigned += 1; | |
| 495 break; | |
| 496 } | |
| 497 } | |
| 498 board += 1; | |
| 499 if (board * processors_per_board + 0 >= limit_id) { | |
| 500 board = 0; | |
| 501 } | |
| 502 } | |
| 503 if (available_id != NULL) { | |
| 6197 | 504 FREE_C_HEAP_ARRAY(bool, available_id, mtInternal); |
| 0 | 505 } |
| 506 return true; | |
| 507 } | |
| 508 | |
| 4006 | 509 void os::set_native_thread_name(const char *name) { |
| 510 // Not yet implemented. | |
| 511 return; | |
| 512 } | |
| 513 | |
| 0 | 514 bool os::distribute_processes(uint length, uint* distribution) { |
| 515 bool result = false; | |
| 516 // Find the processor id's of all the available CPUs. | |
| 517 processorid_t* id_array = NULL; | |
| 518 uint id_length = 0; | |
| 519 // There are some races between querying information and using it, | |
| 520 // since processor sets can change dynamically. | |
| 521 psetid_t pset = PS_NONE; | |
| 522 // Are we running in a processor set? | |
| 523 if ((pset_bind(PS_QUERY, P_PID, P_MYID, &pset) == 0) && pset != PS_NONE) { | |
| 524 result = find_processors_in_pset(pset, &id_array, &id_length); | |
| 525 } else { | |
| 526 result = find_processors_online(&id_array, &id_length); | |
| 527 } | |
| 528 if (result == true) { | |
| 529 if (id_length >= length) { | |
| 530 result = assign_distribution(id_array, id_length, distribution, length); | |
| 531 } else { | |
| 532 result = false; | |
| 533 } | |
| 534 } | |
| 535 if (id_array != NULL) { | |
| 6197 | 536 FREE_C_HEAP_ARRAY(processorid_t, id_array, mtInternal); |
| 0 | 537 } |
| 538 return result; | |
| 539 } | |
| 540 | |
| 541 bool os::bind_to_processor(uint processor_id) { | |
| 542 // We assume that a processorid_t can be stored in a uint. | |
| 543 assert(sizeof(uint) == sizeof(processorid_t), | |
| 544 "can't convert uint to processorid_t"); | |
| 545 int bind_result = | |
| 546 processor_bind(P_LWPID, // bind LWP. | |
| 547 P_MYID, // bind current LWP. | |
| 548 (processorid_t) processor_id, // id. | |
| 549 NULL); // don't return old binding. | |
| 550 return (bind_result == 0); | |
| 551 } | |
| 552 | |
| 553 bool os::getenv(const char* name, char* buffer, int len) { | |
| 554 char* val = ::getenv( name ); | |
| 555 if ( val == NULL | |
| 556 || strlen(val) + 1 > len ) { | |
| 557 if (len > 0) buffer[0] = 0; // return a null string | |
| 558 return false; | |
| 559 } | |
| 560 strcpy( buffer, val ); | |
| 561 return true; | |
| 562 } | |
| 563 | |
| 564 | |
| 565 // Return true if user is running as root. | |
| 566 | |
| 567 bool os::have_special_privileges() { | |
| 568 static bool init = false; | |
| 569 static bool privileges = false; | |
| 570 if (!init) { | |
| 571 privileges = (getuid() != geteuid()) || (getgid() != getegid()); | |
| 572 init = true; | |
| 573 } | |
| 574 return privileges; | |
| 575 } | |
| 576 | |
| 577 | |
| 578 void os::init_system_properties_values() { | |
| 579 // The next steps are taken in the product version: | |
| 580 // | |
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581 // Obtain the JAVA_HOME value from the location of libjvm.so. |
| 0 | 582 // This library should be located at: |
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583 // <JAVA_HOME>/jre/lib/<arch>/{client|server}/libjvm.so. |
| 0 | 584 // |
| 585 // If "/jre/lib/" appears at the right place in the path, then we | |
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586 // assume libjvm.so is installed in a JDK and we use this path. |
| 0 | 587 // |
| 588 // Otherwise exit with message: "Could not create the Java virtual machine." | |
| 589 // | |
| 590 // The following extra steps are taken in the debugging version: | |
| 591 // | |
| 592 // If "/jre/lib/" does NOT appear at the right place in the path | |
| 593 // instead of exit check for $JAVA_HOME environment variable. | |
| 594 // | |
| 595 // If it is defined and we are able to locate $JAVA_HOME/jre/lib/<arch>, | |
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596 // then we append a fake suffix "hotspot/libjvm.so" to this path so |
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597 // it looks like libjvm.so is installed there |
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598 // <JAVA_HOME>/jre/lib/<arch>/hotspot/libjvm.so. |
| 0 | 599 // |
| 600 // Otherwise exit. | |
| 601 // | |
| 602 // Important note: if the location of libjvm.so changes this | |
| 603 // code needs to be changed accordingly. | |
| 604 | |
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605 // Base path of extensions installed on the system. |
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606 #define SYS_EXT_DIR "/usr/jdk/packages" |
| 0 | 607 #define EXTENSIONS_DIR "/lib/ext" |
| 608 #define ENDORSED_DIR "/lib/endorsed" | |
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609 |
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610 char cpu_arch[12]; |
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611 // Buffer that fits several sprintfs. |
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612 // Note that the space for the colon and the trailing null are provided |
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613 // by the nulls included by the sizeof operator. |
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614 const size_t bufsize = |
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615 MAX4((size_t)MAXPATHLEN, // For dll_dir & friends. |
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616 sizeof(SYS_EXT_DIR) + sizeof("/lib/") + strlen(cpu_arch), // invariant ld_library_path |
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617 (size_t)MAXPATHLEN + sizeof(EXTENSIONS_DIR) + sizeof(SYS_EXT_DIR) + sizeof(EXTENSIONS_DIR), // extensions dir |
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618 (size_t)MAXPATHLEN + sizeof(ENDORSED_DIR)); // endorsed dir |
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619 char *buf = (char *)NEW_C_HEAP_ARRAY(char, bufsize, mtInternal); |
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620 |
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621 // sysclasspath, java_home, dll_dir |
| 0 | 622 { |
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623 char *pslash; |
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624 os::jvm_path(buf, bufsize); |
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625 |
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626 // Found the full path to libjvm.so. |
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627 // Now cut the path to <java_home>/jre if we can. |
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628 *(strrchr(buf, '/')) = '\0'; // Get rid of /libjvm.so. |
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629 pslash = strrchr(buf, '/'); |
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630 if (pslash != NULL) { |
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631 *pslash = '\0'; // Get rid of /{client|server|hotspot}. |
| 0 | 632 } |
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633 Arguments::set_dll_dir(buf); |
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634 |
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635 if (pslash != NULL) { |
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636 pslash = strrchr(buf, '/'); |
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637 if (pslash != NULL) { |
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638 *pslash = '\0'; // Get rid of /<arch>. |
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639 pslash = strrchr(buf, '/'); |
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640 if (pslash != NULL) { |
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641 *pslash = '\0'; // Get rid of /lib. |
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642 } |
| 0 | 643 } |
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644 } |
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645 Arguments::set_java_home(buf); |
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646 set_boot_path('/', ':'); |
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647 } |
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648 |
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649 // Where to look for native libraries. |
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650 { |
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651 // Use dlinfo() to determine the correct java.library.path. |
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652 // |
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653 // If we're launched by the Java launcher, and the user |
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654 // does not set java.library.path explicitly on the commandline, |
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655 // the Java launcher sets LD_LIBRARY_PATH for us and unsets |
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656 // LD_LIBRARY_PATH_32 and LD_LIBRARY_PATH_64. In this case |
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657 // dlinfo returns LD_LIBRARY_PATH + crle settings (including |
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658 // /usr/lib), which is exactly what we want. |
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659 // |
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660 // If the user does set java.library.path, it completely |
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661 // overwrites this setting, and always has. |
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662 // |
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663 // If we're not launched by the Java launcher, we may |
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664 // get here with any/all of the LD_LIBRARY_PATH[_32|64] |
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665 // settings. Again, dlinfo does exactly what we want. |
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666 |
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667 Dl_serinfo info_sz, *info = &info_sz; |
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668 Dl_serpath *path; |
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669 char *library_path; |
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670 char *common_path = buf; |
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671 |
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672 // Determine search path count and required buffer size. |
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673 if (dlinfo(RTLD_SELF, RTLD_DI_SERINFOSIZE, (void *)info) == -1) { |
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674 FREE_C_HEAP_ARRAY(char, buf, mtInternal); |
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675 vm_exit_during_initialization("dlinfo SERINFOSIZE request", dlerror()); |
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676 } |
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677 |
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678 // Allocate new buffer and initialize. |
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679 info = (Dl_serinfo*)NEW_C_HEAP_ARRAY(char, info_sz.dls_size, mtInternal); |
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680 info->dls_size = info_sz.dls_size; |
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681 info->dls_cnt = info_sz.dls_cnt; |
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682 |
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683 // Obtain search path information. |
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684 if (dlinfo(RTLD_SELF, RTLD_DI_SERINFO, (void *)info) == -1) { |
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685 FREE_C_HEAP_ARRAY(char, buf, mtInternal); |
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686 FREE_C_HEAP_ARRAY(char, info, mtInternal); |
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687 vm_exit_during_initialization("dlinfo SERINFO request", dlerror()); |
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688 } |
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689 |
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690 path = &info->dls_serpath[0]; |
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691 |
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692 // Note: Due to a legacy implementation, most of the library path |
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693 // is set in the launcher. This was to accomodate linking restrictions |
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694 // on legacy Solaris implementations (which are no longer supported). |
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695 // Eventually, all the library path setting will be done here. |
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696 // |
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697 // However, to prevent the proliferation of improperly built native |
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698 // libraries, the new path component /usr/jdk/packages is added here. |
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699 |
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700 // Determine the actual CPU architecture. |
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701 sysinfo(SI_ARCHITECTURE, cpu_arch, sizeof(cpu_arch)); |
| 0 | 702 #ifdef _LP64 |
|
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703 // If we are a 64-bit vm, perform the following translations: |
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704 // sparc -> sparcv9 |
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705 // i386 -> amd64 |
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706 if (strcmp(cpu_arch, "sparc") == 0) { |
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707 strcat(cpu_arch, "v9"); |
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708 } else if (strcmp(cpu_arch, "i386") == 0) { |
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709 strcpy(cpu_arch, "amd64"); |
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710 } |
| 0 | 711 #endif |
| 712 | |
|
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713 // Construct the invariant part of ld_library_path. |
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714 sprintf(common_path, SYS_EXT_DIR "/lib/%s", cpu_arch); |
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715 |
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716 // Struct size is more than sufficient for the path components obtained |
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717 // through the dlinfo() call, so only add additional space for the path |
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718 // components explicitly added here. |
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719 size_t library_path_size = info->dls_size + strlen(common_path); |
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720 library_path = (char *)NEW_C_HEAP_ARRAY(char, library_path_size, mtInternal); |
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721 library_path[0] = '\0'; |
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722 |
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723 // Construct the desired Java library path from the linker's library |
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724 // search path. |
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725 // |
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726 // For compatibility, it is optimal that we insert the additional path |
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727 // components specific to the Java VM after those components specified |
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728 // in LD_LIBRARY_PATH (if any) but before those added by the ld.so |
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729 // infrastructure. |
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730 if (info->dls_cnt == 0) { // Not sure this can happen, but allow for it. |
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731 strcpy(library_path, common_path); |
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732 } else { |
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733 int inserted = 0; |
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734 int i; |
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735 for (i = 0; i < info->dls_cnt; i++, path++) { |
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736 uint_t flags = path->dls_flags & LA_SER_MASK; |
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737 if (((flags & LA_SER_LIBPATH) == 0) && !inserted) { |
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738 strcat(library_path, common_path); |
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739 strcat(library_path, os::path_separator()); |
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740 inserted = 1; |
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741 } |
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742 strcat(library_path, path->dls_name); |
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743 strcat(library_path, os::path_separator()); |
| 0 | 744 } |
|
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745 // Eliminate trailing path separator. |
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746 library_path[strlen(library_path)-1] = '\0'; |
| 0 | 747 } |
| 748 | |
|
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749 // happens before argument parsing - can't use a trace flag |
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750 // tty->print_raw("init_system_properties_values: native lib path: "); |
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751 // tty->print_raw_cr(library_path); |
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752 |
|
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753 // Callee copies into its own buffer. |
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754 Arguments::set_library_path(library_path); |
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755 |
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756 FREE_C_HEAP_ARRAY(char, library_path, mtInternal); |
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757 FREE_C_HEAP_ARRAY(char, info, mtInternal); |
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758 } |
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759 |
|
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760 // Extensions directories. |
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761 sprintf(buf, "%s" EXTENSIONS_DIR ":" SYS_EXT_DIR EXTENSIONS_DIR, Arguments::get_java_home()); |
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762 Arguments::set_ext_dirs(buf); |
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763 |
|
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764 // Endorsed standards default directory. |
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765 sprintf(buf, "%s" ENDORSED_DIR, Arguments::get_java_home()); |
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766 Arguments::set_endorsed_dirs(buf); |
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767 |
|
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768 FREE_C_HEAP_ARRAY(char, buf, mtInternal); |
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769 |
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770 #undef SYS_EXT_DIR |
| 0 | 771 #undef EXTENSIONS_DIR |
| 772 #undef ENDORSED_DIR | |
| 773 } | |
| 774 | |
| 775 void os::breakpoint() { | |
| 776 BREAKPOINT; | |
| 777 } | |
| 778 | |
| 779 bool os::obsolete_option(const JavaVMOption *option) | |
| 780 { | |
| 781 if (!strncmp(option->optionString, "-Xt", 3)) { | |
| 782 return true; | |
| 783 } else if (!strncmp(option->optionString, "-Xtm", 4)) { | |
| 784 return true; | |
| 785 } else if (!strncmp(option->optionString, "-Xverifyheap", 12)) { | |
| 786 return true; | |
| 787 } else if (!strncmp(option->optionString, "-Xmaxjitcodesize", 16)) { | |
| 788 return true; | |
| 789 } | |
| 790 return false; | |
| 791 } | |
| 792 | |
| 793 bool os::Solaris::valid_stack_address(Thread* thread, address sp) { | |
| 794 address stackStart = (address)thread->stack_base(); | |
| 795 address stackEnd = (address)(stackStart - (address)thread->stack_size()); | |
| 796 if (sp < stackStart && sp >= stackEnd ) return true; | |
| 797 return false; | |
| 798 } | |
| 799 | |
| 800 extern "C" void breakpoint() { | |
| 801 // use debugger to set breakpoint here | |
| 802 } | |
| 803 | |
| 804 static thread_t main_thread; | |
| 805 | |
| 806 // Thread start routine for all new Java threads | |
| 807 extern "C" void* java_start(void* thread_addr) { | |
| 808 // Try to randomize the cache line index of hot stack frames. | |
| 809 // This helps when threads of the same stack traces evict each other's | |
| 810 // cache lines. The threads can be either from the same JVM instance, or | |
| 811 // from different JVM instances. The benefit is especially true for | |
| 812 // processors with hyperthreading technology. | |
| 813 static int counter = 0; | |
| 814 int pid = os::current_process_id(); | |
| 815 alloca(((pid ^ counter++) & 7) * 128); | |
| 816 | |
| 817 int prio; | |
| 818 Thread* thread = (Thread*)thread_addr; | |
| 819 OSThread* osthr = thread->osthread(); | |
| 820 | |
| 821 osthr->set_lwp_id( _lwp_self() ); // Store lwp in case we are bound | |
| 822 thread->_schedctl = (void *) schedctl_init () ; | |
| 823 | |
| 824 if (UseNUMA) { | |
| 825 int lgrp_id = os::numa_get_group_id(); | |
| 826 if (lgrp_id != -1) { | |
| 827 thread->set_lgrp_id(lgrp_id); | |
| 828 } | |
| 829 } | |
| 830 | |
| 831 // If the creator called set priority before we started, | |
|
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832 // we need to call set_native_priority now that we have an lwp. |
|
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833 // We used to get the priority from thr_getprio (we called |
|
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834 // thr_setprio way back in create_thread) and pass it to |
|
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835 // set_native_priority, but Solaris scales the priority |
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836 // in java_to_os_priority, so when we read it back here, |
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837 // we pass trash to set_native_priority instead of what's |
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838 // in java_to_os_priority. So we save the native priority |
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839 // in the osThread and recall it here. |
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840 |
| 0 | 841 if ( osthr->thread_id() != -1 ) { |
| 842 if ( UseThreadPriorities ) { | |
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843 int prio = osthr->native_priority(); |
| 0 | 844 if (ThreadPriorityVerbose) { |
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845 tty->print_cr("Starting Thread " INTPTR_FORMAT ", LWP is " |
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846 INTPTR_FORMAT ", setting priority: %d\n", |
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847 osthr->thread_id(), osthr->lwp_id(), prio); |
| 0 | 848 } |
| 849 os::set_native_priority(thread, prio); | |
| 850 } | |
| 851 } else if (ThreadPriorityVerbose) { | |
| 852 warning("Can't set priority in _start routine, thread id hasn't been set\n"); | |
| 853 } | |
| 854 | |
| 855 assert(osthr->get_state() == RUNNABLE, "invalid os thread state"); | |
| 856 | |
| 857 // initialize signal mask for this thread | |
| 858 os::Solaris::hotspot_sigmask(thread); | |
| 859 | |
| 860 thread->run(); | |
| 861 | |
| 862 // One less thread is executing | |
| 863 // When the VMThread gets here, the main thread may have already exited | |
| 864 // which frees the CodeHeap containing the Atomic::dec code | |
| 865 if (thread != VMThread::vm_thread() && VMThread::vm_thread() != NULL) { | |
| 866 Atomic::dec(&os::Solaris::_os_thread_count); | |
| 867 } | |
| 868 | |
| 869 if (UseDetachedThreads) { | |
| 870 thr_exit(NULL); | |
| 871 ShouldNotReachHere(); | |
| 872 } | |
| 873 return NULL; | |
| 874 } | |
| 875 | |
| 876 static OSThread* create_os_thread(Thread* thread, thread_t thread_id) { | |
| 877 // Allocate the OSThread object | |
| 878 OSThread* osthread = new OSThread(NULL, NULL); | |
| 879 if (osthread == NULL) return NULL; | |
| 880 | |
| 881 // Store info on the Solaris thread into the OSThread | |
| 882 osthread->set_thread_id(thread_id); | |
| 883 osthread->set_lwp_id(_lwp_self()); | |
| 884 thread->_schedctl = (void *) schedctl_init () ; | |
| 885 | |
| 886 if (UseNUMA) { | |
| 887 int lgrp_id = os::numa_get_group_id(); | |
| 888 if (lgrp_id != -1) { | |
| 889 thread->set_lgrp_id(lgrp_id); | |
| 890 } | |
| 891 } | |
| 892 | |
| 893 if ( ThreadPriorityVerbose ) { | |
| 894 tty->print_cr("In create_os_thread, Thread " INTPTR_FORMAT ", LWP is " INTPTR_FORMAT "\n", | |
| 895 osthread->thread_id(), osthread->lwp_id() ); | |
| 896 } | |
| 897 | |
| 898 // Initial thread state is INITIALIZED, not SUSPENDED | |
| 899 osthread->set_state(INITIALIZED); | |
| 900 | |
| 901 return osthread; | |
| 902 } | |
| 903 | |
| 904 void os::Solaris::hotspot_sigmask(Thread* thread) { | |
| 905 | |
| 906 //Save caller's signal mask | |
| 907 sigset_t sigmask; | |
| 908 thr_sigsetmask(SIG_SETMASK, NULL, &sigmask); | |
| 909 OSThread *osthread = thread->osthread(); | |
| 910 osthread->set_caller_sigmask(sigmask); | |
| 911 | |
| 912 thr_sigsetmask(SIG_UNBLOCK, os::Solaris::unblocked_signals(), NULL); | |
| 913 if (!ReduceSignalUsage) { | |
| 914 if (thread->is_VM_thread()) { | |
| 915 // Only the VM thread handles BREAK_SIGNAL ... | |
| 916 thr_sigsetmask(SIG_UNBLOCK, vm_signals(), NULL); | |
| 917 } else { | |
| 918 // ... all other threads block BREAK_SIGNAL | |
| 919 assert(!sigismember(vm_signals(), SIGINT), "SIGINT should not be blocked"); | |
| 920 thr_sigsetmask(SIG_BLOCK, vm_signals(), NULL); | |
| 921 } | |
| 922 } | |
| 923 } | |
| 924 | |
| 925 bool os::create_attached_thread(JavaThread* thread) { | |
| 926 #ifdef ASSERT | |
| 927 thread->verify_not_published(); | |
| 928 #endif | |
| 929 OSThread* osthread = create_os_thread(thread, thr_self()); | |
| 930 if (osthread == NULL) { | |
| 931 return false; | |
| 932 } | |
| 933 | |
| 934 // Initial thread state is RUNNABLE | |
| 935 osthread->set_state(RUNNABLE); | |
| 936 thread->set_osthread(osthread); | |
| 937 | |
| 938 // initialize signal mask for this thread | |
| 939 // and save the caller's signal mask | |
| 940 os::Solaris::hotspot_sigmask(thread); | |
| 941 | |
| 942 return true; | |
| 943 } | |
| 944 | |
| 945 bool os::create_main_thread(JavaThread* thread) { | |
| 946 #ifdef ASSERT | |
| 947 thread->verify_not_published(); | |
| 948 #endif | |
| 949 if (_starting_thread == NULL) { | |
| 950 _starting_thread = create_os_thread(thread, main_thread); | |
| 951 if (_starting_thread == NULL) { | |
| 952 return false; | |
| 953 } | |
| 954 } | |
| 955 | |
| 956 // The primodial thread is runnable from the start | |
| 957 _starting_thread->set_state(RUNNABLE); | |
| 958 | |
| 959 thread->set_osthread(_starting_thread); | |
| 960 | |
| 961 // initialize signal mask for this thread | |
| 962 // and save the caller's signal mask | |
| 963 os::Solaris::hotspot_sigmask(thread); | |
| 964 | |
| 965 return true; | |
| 966 } | |
| 967 | |
| 968 // _T2_libthread is true if we believe we are running with the newer | |
| 969 // SunSoft lwp/libthread.so (2.8 patch, 2.9 default) | |
| 970 bool os::Solaris::_T2_libthread = false; | |
| 971 | |
| 972 bool os::create_thread(Thread* thread, ThreadType thr_type, size_t stack_size) { | |
| 973 // Allocate the OSThread object | |
| 974 OSThread* osthread = new OSThread(NULL, NULL); | |
| 975 if (osthread == NULL) { | |
| 976 return false; | |
| 977 } | |
| 978 | |
| 979 if ( ThreadPriorityVerbose ) { | |
| 980 char *thrtyp; | |
| 981 switch ( thr_type ) { | |
| 982 case vm_thread: | |
| 983 thrtyp = (char *)"vm"; | |
| 984 break; | |
| 985 case cgc_thread: | |
| 986 thrtyp = (char *)"cgc"; | |
| 987 break; | |
| 988 case pgc_thread: | |
| 989 thrtyp = (char *)"pgc"; | |
| 990 break; | |
| 991 case java_thread: | |
| 992 thrtyp = (char *)"java"; | |
| 993 break; | |
| 994 case compiler_thread: | |
| 995 thrtyp = (char *)"compiler"; | |
| 996 break; | |
| 997 case watcher_thread: | |
| 998 thrtyp = (char *)"watcher"; | |
| 999 break; | |
| 1000 default: | |
| 1001 thrtyp = (char *)"unknown"; | |
| 1002 break; | |
| 1003 } | |
| 1004 tty->print_cr("In create_thread, creating a %s thread\n", thrtyp); | |
| 1005 } | |
| 1006 | |
| 1007 // Calculate stack size if it's not specified by caller. | |
| 1008 if (stack_size == 0) { | |
| 1009 // The default stack size 1M (2M for LP64). | |
| 1010 stack_size = (BytesPerWord >> 2) * K * K; | |
| 1011 | |
| 1012 switch (thr_type) { | |
| 1013 case os::java_thread: | |
| 1014 // Java threads use ThreadStackSize which default value can be changed with the flag -Xss | |
| 1015 if (JavaThread::stack_size_at_create() > 0) stack_size = JavaThread::stack_size_at_create(); | |
| 1016 break; | |
| 1017 case os::compiler_thread: | |
| 1018 if (CompilerThreadStackSize > 0) { | |
| 1019 stack_size = (size_t)(CompilerThreadStackSize * K); | |
| 1020 break; | |
| 1021 } // else fall through: | |
| 1022 // use VMThreadStackSize if CompilerThreadStackSize is not defined | |
| 1023 case os::vm_thread: | |
| 1024 case os::pgc_thread: | |
| 1025 case os::cgc_thread: | |
| 1026 case os::watcher_thread: | |
| 1027 if (VMThreadStackSize > 0) stack_size = (size_t)(VMThreadStackSize * K); | |
| 1028 break; | |
| 1029 } | |
| 1030 } | |
| 1031 stack_size = MAX2(stack_size, os::Solaris::min_stack_allowed); | |
| 1032 | |
| 1033 // Initial state is ALLOCATED but not INITIALIZED | |
| 1034 osthread->set_state(ALLOCATED); | |
| 1035 | |
| 1036 if (os::Solaris::_os_thread_count > os::Solaris::_os_thread_limit) { | |
| 1037 // We got lots of threads. Check if we still have some address space left. | |
| 1038 // Need to be at least 5Mb of unreserved address space. We do check by | |
| 1039 // trying to reserve some. | |
| 1040 const size_t VirtualMemoryBangSize = 20*K*K; | |
| 1041 char* mem = os::reserve_memory(VirtualMemoryBangSize); | |
| 1042 if (mem == NULL) { | |
| 1043 delete osthread; | |
| 1044 return false; | |
| 1045 } else { | |
| 1046 // Release the memory again | |
| 1047 os::release_memory(mem, VirtualMemoryBangSize); | |
| 1048 } | |
| 1049 } | |
| 1050 | |
| 1051 // Setup osthread because the child thread may need it. | |
| 1052 thread->set_osthread(osthread); | |
| 1053 | |
| 1054 // Create the Solaris thread | |
| 1055 // explicit THR_BOUND for T2_libthread case in case | |
| 1056 // that assumption is not accurate, but our alternate signal stack | |
| 1057 // handling is based on it which must have bound threads | |
| 1058 thread_t tid = 0; | |
| 1059 long flags = (UseDetachedThreads ? THR_DETACHED : 0) | THR_SUSPENDED | |
| 1060 | ((UseBoundThreads || os::Solaris::T2_libthread() || | |
| 1061 (thr_type == vm_thread) || | |
| 1062 (thr_type == cgc_thread) || | |
| 1063 (thr_type == pgc_thread) || | |
| 1064 (thr_type == compiler_thread && BackgroundCompilation)) ? | |
| 1065 THR_BOUND : 0); | |
| 1066 int status; | |
| 1067 | |
| 1068 // 4376845 -- libthread/kernel don't provide enough LWPs to utilize all CPUs. | |
| 1069 // | |
| 1070 // On multiprocessors systems, libthread sometimes under-provisions our | |
| 1071 // process with LWPs. On a 30-way systems, for instance, we could have | |
| 1072 // 50 user-level threads in ready state and only 2 or 3 LWPs assigned | |
| 1073 // to our process. This can result in under utilization of PEs. | |
| 1074 // I suspect the problem is related to libthread's LWP | |
| 1075 // pool management and to the kernel's SIGBLOCKING "last LWP parked" | |
| 1076 // upcall policy. | |
| 1077 // | |
| 1078 // The following code is palliative -- it attempts to ensure that our | |
| 1079 // process has sufficient LWPs to take advantage of multiple PEs. | |
| 1080 // Proper long-term cures include using user-level threads bound to LWPs | |
| 1081 // (THR_BOUND) or using LWP-based synchronization. Note that there is a | |
| 1082 // slight timing window with respect to sampling _os_thread_count, but | |
| 1083 // the race is benign. Also, we should periodically recompute | |
| 1084 // _processors_online as the min of SC_NPROCESSORS_ONLN and the | |
| 1085 // the number of PEs in our partition. You might be tempted to use | |
| 1086 // THR_NEW_LWP here, but I'd recommend against it as that could | |
| 1087 // result in undesirable growth of the libthread's LWP pool. | |
| 1088 // The fix below isn't sufficient; for instance, it doesn't take into count | |
| 1089 // LWPs parked on IO. It does, however, help certain CPU-bound benchmarks. | |
| 1090 // | |
| 1091 // Some pathologies this scheme doesn't handle: | |
| 1092 // * Threads can block, releasing the LWPs. The LWPs can age out. | |
| 1093 // When a large number of threads become ready again there aren't | |
| 1094 // enough LWPs available to service them. This can occur when the | |
| 1095 // number of ready threads oscillates. | |
| 1096 // * LWPs/Threads park on IO, thus taking the LWP out of circulation. | |
| 1097 // | |
| 1098 // Finally, we should call thr_setconcurrency() periodically to refresh | |
| 1099 // the LWP pool and thwart the LWP age-out mechanism. | |
| 1100 // The "+3" term provides a little slop -- we want to slightly overprovision. | |
| 1101 | |
| 1102 if (AdjustConcurrency && os::Solaris::_os_thread_count < (_processors_online+3)) { | |
| 1103 if (!(flags & THR_BOUND)) { | |
| 1104 thr_setconcurrency (os::Solaris::_os_thread_count); // avoid starvation | |
| 1105 } | |
| 1106 } | |
| 1107 // Although this doesn't hurt, we should warn of undefined behavior | |
| 1108 // when using unbound T1 threads with schedctl(). This should never | |
| 1109 // happen, as the compiler and VM threads are always created bound | |
| 1110 DEBUG_ONLY( | |
| 1111 if ((VMThreadHintNoPreempt || CompilerThreadHintNoPreempt) && | |
| 1112 (!os::Solaris::T2_libthread() && (!(flags & THR_BOUND))) && | |
| 1113 ((thr_type == vm_thread) || (thr_type == cgc_thread) || | |
| 1114 (thr_type == pgc_thread) || (thr_type == compiler_thread && BackgroundCompilation))) { | |
| 1115 warning("schedctl behavior undefined when Compiler/VM/GC Threads are Unbound"); | |
| 1116 } | |
| 1117 ); | |
| 1118 | |
| 1119 | |
| 1120 // Mark that we don't have an lwp or thread id yet. | |
| 1121 // In case we attempt to set the priority before the thread starts. | |
| 1122 osthread->set_lwp_id(-1); | |
| 1123 osthread->set_thread_id(-1); | |
| 1124 | |
| 1125 status = thr_create(NULL, stack_size, java_start, thread, flags, &tid); | |
| 1126 if (status != 0) { | |
| 1127 if (PrintMiscellaneous && (Verbose || WizardMode)) { | |
| 1128 perror("os::create_thread"); | |
| 1129 } | |
| 1130 thread->set_osthread(NULL); | |
| 1131 // Need to clean up stuff we've allocated so far | |
| 1132 delete osthread; | |
| 1133 return false; | |
| 1134 } | |
| 1135 | |
| 1136 Atomic::inc(&os::Solaris::_os_thread_count); | |
| 1137 | |
| 1138 // Store info on the Solaris thread into the OSThread | |
| 1139 osthread->set_thread_id(tid); | |
| 1140 | |
| 1141 // Remember that we created this thread so we can set priority on it | |
| 1142 osthread->set_vm_created(); | |
| 1143 | |
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1144 // Set the default thread priority. If using bound threads, setting |
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1145 // lwp priority will be delayed until thread start. |
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1146 set_native_priority(thread, |
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1147 DefaultThreadPriority == -1 ? |
| 0 | 1148 java_to_os_priority[NormPriority] : |
| 1149 DefaultThreadPriority); | |
| 1150 | |
| 1151 // Initial thread state is INITIALIZED, not SUSPENDED | |
| 1152 osthread->set_state(INITIALIZED); | |
| 1153 | |
| 1154 // The thread is returned suspended (in state INITIALIZED), and is started higher up in the call chain | |
| 1155 return true; | |
| 1156 } | |
| 1157 | |
| 1158 /* defined for >= Solaris 10. This allows builds on earlier versions | |
| 1159 * of Solaris to take advantage of the newly reserved Solaris JVM signals | |
| 1160 * With SIGJVM1, SIGJVM2, INTERRUPT_SIGNAL is SIGJVM1, ASYNC_SIGNAL is SIGJVM2 | |
| 1161 * and -XX:+UseAltSigs does nothing since these should have no conflict | |
| 1162 */ | |
| 1163 #if !defined(SIGJVM1) | |
| 1164 #define SIGJVM1 39 | |
| 1165 #define SIGJVM2 40 | |
| 1166 #endif | |
| 1167 | |
| 1168 debug_only(static bool signal_sets_initialized = false); | |
| 1169 static sigset_t unblocked_sigs, vm_sigs, allowdebug_blocked_sigs; | |
| 1170 int os::Solaris::_SIGinterrupt = INTERRUPT_SIGNAL; | |
| 1171 int os::Solaris::_SIGasync = ASYNC_SIGNAL; | |
| 1172 | |
| 1173 bool os::Solaris::is_sig_ignored(int sig) { | |
| 1174 struct sigaction oact; | |
| 1175 sigaction(sig, (struct sigaction*)NULL, &oact); | |
| 1176 void* ohlr = oact.sa_sigaction ? CAST_FROM_FN_PTR(void*, oact.sa_sigaction) | |
| 1177 : CAST_FROM_FN_PTR(void*, oact.sa_handler); | |
| 1178 if (ohlr == CAST_FROM_FN_PTR(void*, SIG_IGN)) | |
| 1179 return true; | |
| 1180 else | |
| 1181 return false; | |
| 1182 } | |
| 1183 | |
| 1184 // Note: SIGRTMIN is a macro that calls sysconf() so it will | |
| 1185 // dynamically detect SIGRTMIN value for the system at runtime, not buildtime | |
| 1186 static bool isJVM1available() { | |
| 1187 return SIGJVM1 < SIGRTMIN; | |
| 1188 } | |
| 1189 | |
| 1190 void os::Solaris::signal_sets_init() { | |
| 1191 // Should also have an assertion stating we are still single-threaded. | |
| 1192 assert(!signal_sets_initialized, "Already initialized"); | |
| 1193 // Fill in signals that are necessarily unblocked for all threads in | |
| 1194 // the VM. Currently, we unblock the following signals: | |
| 1195 // SHUTDOWN{1,2,3}_SIGNAL: for shutdown hooks support (unless over-ridden | |
| 1196 // by -Xrs (=ReduceSignalUsage)); | |
| 1197 // BREAK_SIGNAL which is unblocked only by the VM thread and blocked by all | |
| 1198 // other threads. The "ReduceSignalUsage" boolean tells us not to alter | |
| 1199 // the dispositions or masks wrt these signals. | |
| 1200 // Programs embedding the VM that want to use the above signals for their | |
| 1201 // own purposes must, at this time, use the "-Xrs" option to prevent | |
| 1202 // interference with shutdown hooks and BREAK_SIGNAL thread dumping. | |
| 1203 // (See bug 4345157, and other related bugs). | |
| 1204 // In reality, though, unblocking these signals is really a nop, since | |
| 1205 // these signals are not blocked by default. | |
| 1206 sigemptyset(&unblocked_sigs); | |
| 1207 sigemptyset(&allowdebug_blocked_sigs); | |
| 1208 sigaddset(&unblocked_sigs, SIGILL); | |
| 1209 sigaddset(&unblocked_sigs, SIGSEGV); | |
| 1210 sigaddset(&unblocked_sigs, SIGBUS); | |
| 1211 sigaddset(&unblocked_sigs, SIGFPE); | |
| 1212 | |
| 1213 if (isJVM1available) { | |
| 1214 os::Solaris::set_SIGinterrupt(SIGJVM1); | |
| 1215 os::Solaris::set_SIGasync(SIGJVM2); | |
| 1216 } else if (UseAltSigs) { | |
| 1217 os::Solaris::set_SIGinterrupt(ALT_INTERRUPT_SIGNAL); | |
| 1218 os::Solaris::set_SIGasync(ALT_ASYNC_SIGNAL); | |
| 1219 } else { | |
| 1220 os::Solaris::set_SIGinterrupt(INTERRUPT_SIGNAL); | |
| 1221 os::Solaris::set_SIGasync(ASYNC_SIGNAL); | |
| 1222 } | |
| 1223 | |
| 1224 sigaddset(&unblocked_sigs, os::Solaris::SIGinterrupt()); | |
| 1225 sigaddset(&unblocked_sigs, os::Solaris::SIGasync()); | |
| 1226 | |
| 1227 if (!ReduceSignalUsage) { | |
| 1228 if (!os::Solaris::is_sig_ignored(SHUTDOWN1_SIGNAL)) { | |
| 1229 sigaddset(&unblocked_sigs, SHUTDOWN1_SIGNAL); | |
| 1230 sigaddset(&allowdebug_blocked_sigs, SHUTDOWN1_SIGNAL); | |
| 1231 } | |
| 1232 if (!os::Solaris::is_sig_ignored(SHUTDOWN2_SIGNAL)) { | |
| 1233 sigaddset(&unblocked_sigs, SHUTDOWN2_SIGNAL); | |
| 1234 sigaddset(&allowdebug_blocked_sigs, SHUTDOWN2_SIGNAL); | |
| 1235 } | |
| 1236 if (!os::Solaris::is_sig_ignored(SHUTDOWN3_SIGNAL)) { | |
| 1237 sigaddset(&unblocked_sigs, SHUTDOWN3_SIGNAL); | |
| 1238 sigaddset(&allowdebug_blocked_sigs, SHUTDOWN3_SIGNAL); | |
| 1239 } | |
| 1240 } | |
| 1241 // Fill in signals that are blocked by all but the VM thread. | |
| 1242 sigemptyset(&vm_sigs); | |
| 1243 if (!ReduceSignalUsage) | |
| 1244 sigaddset(&vm_sigs, BREAK_SIGNAL); | |
| 1245 debug_only(signal_sets_initialized = true); | |
| 1246 | |
| 1247 // For diagnostics only used in run_periodic_checks | |
| 1248 sigemptyset(&check_signal_done); | |
| 1249 } | |
| 1250 | |
| 1251 // These are signals that are unblocked while a thread is running Java. | |
| 1252 // (For some reason, they get blocked by default.) | |
| 1253 sigset_t* os::Solaris::unblocked_signals() { | |
| 1254 assert(signal_sets_initialized, "Not initialized"); | |
| 1255 return &unblocked_sigs; | |
| 1256 } | |
| 1257 | |
| 1258 // These are the signals that are blocked while a (non-VM) thread is | |
| 1259 // running Java. Only the VM thread handles these signals. | |
| 1260 sigset_t* os::Solaris::vm_signals() { | |
| 1261 assert(signal_sets_initialized, "Not initialized"); | |
| 1262 return &vm_sigs; | |
| 1263 } | |
| 1264 | |
| 1265 // These are signals that are blocked during cond_wait to allow debugger in | |
| 1266 sigset_t* os::Solaris::allowdebug_blocked_signals() { | |
| 1267 assert(signal_sets_initialized, "Not initialized"); | |
| 1268 return &allowdebug_blocked_sigs; | |
| 1269 } | |
| 1270 | |
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1272 void _handle_uncaught_cxx_exception() { |
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1273 VMError err("An uncaught C++ exception"); |
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1274 err.report_and_die(); |
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1275 } |
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1276 |
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1277 |
| 0 | 1278 // First crack at OS-specific initialization, from inside the new thread. |
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1279 void os::initialize_thread(Thread* thr) { |
| 0 | 1280 int r = thr_main() ; |
| 1281 guarantee (r == 0 || r == 1, "CR6501650 or CR6493689") ; | |
| 1282 if (r) { | |
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1283 JavaThread* jt = (JavaThread *)thr; |
| 0 | 1284 assert(jt != NULL,"Sanity check"); |
| 1285 size_t stack_size; | |
| 1286 address base = jt->stack_base(); | |
| 1287 if (Arguments::created_by_java_launcher()) { | |
| 1288 // Use 2MB to allow for Solaris 7 64 bit mode. | |
| 1289 stack_size = JavaThread::stack_size_at_create() == 0 | |
| 1290 ? 2048*K : JavaThread::stack_size_at_create(); | |
| 1291 | |
| 1292 // There are rare cases when we may have already used more than | |
| 1293 // the basic stack size allotment before this method is invoked. | |
| 1294 // Attempt to allow for a normally sized java_stack. | |
| 1295 size_t current_stack_offset = (size_t)(base - (address)&stack_size); | |
| 1296 stack_size += ReservedSpace::page_align_size_down(current_stack_offset); | |
| 1297 } else { | |
| 1298 // 6269555: If we were not created by a Java launcher, i.e. if we are | |
| 1299 // running embedded in a native application, treat the primordial thread | |
| 1300 // as much like a native attached thread as possible. This means using | |
| 1301 // the current stack size from thr_stksegment(), unless it is too large | |
| 1302 // to reliably setup guard pages. A reasonable max size is 8MB. | |
| 1303 size_t current_size = current_stack_size(); | |
| 1304 // This should never happen, but just in case.... | |
| 1305 if (current_size == 0) current_size = 2 * K * K; | |
| 1306 stack_size = current_size > (8 * K * K) ? (8 * K * K) : current_size; | |
| 1307 } | |
| 1308 address bottom = (address)align_size_up((intptr_t)(base - stack_size), os::vm_page_size());; | |
| 1309 stack_size = (size_t)(base - bottom); | |
| 1310 | |
| 1311 assert(stack_size > 0, "Stack size calculation problem"); | |
| 1312 | |
| 1313 if (stack_size > jt->stack_size()) { | |
| 1314 NOT_PRODUCT( | |
| 1315 struct rlimit limits; | |
| 1316 getrlimit(RLIMIT_STACK, &limits); | |
| 1317 size_t size = adjust_stack_size(base, (size_t)limits.rlim_cur); | |
| 1318 assert(size >= jt->stack_size(), "Stack size problem in main thread"); | |
| 1319 ) | |
| 1320 tty->print_cr( | |
| 1321 "Stack size of %d Kb exceeds current limit of %d Kb.\n" | |
| 1322 "(Stack sizes are rounded up to a multiple of the system page size.)\n" | |
| 1323 "See limit(1) to increase the stack size limit.", | |
| 1324 stack_size / K, jt->stack_size() / K); | |
| 1325 vm_exit(1); | |
| 1326 } | |
| 1327 assert(jt->stack_size() >= stack_size, | |
| 1328 "Attempt to map more stack than was allocated"); | |
| 1329 jt->set_stack_size(stack_size); | |
| 1330 } | |
| 1331 | |
| 1332 // 5/22/01: Right now alternate signal stacks do not handle | |
| 1333 // throwing stack overflow exceptions, see bug 4463178 | |
| 1334 // Until a fix is found for this, T2 will NOT imply alternate signal | |
| 1335 // stacks. | |
| 1336 // If using T2 libthread threads, install an alternate signal stack. | |
| 1337 // Because alternate stacks associate with LWPs on Solaris, | |
| 1338 // see sigaltstack(2), if using UNBOUND threads, or if UseBoundThreads | |
| 1339 // we prefer to explicitly stack bang. | |
| 1340 // If not using T2 libthread, but using UseBoundThreads any threads | |
| 1341 // (primordial thread, jni_attachCurrentThread) we do not create, | |
| 1342 // probably are not bound, therefore they can not have an alternate | |
| 1343 // signal stack. Since our stack banging code is generated and | |
| 1344 // is shared across threads, all threads must be bound to allow | |
| 1345 // using alternate signal stacks. The alternative is to interpose | |
| 1346 // on _lwp_create to associate an alt sig stack with each LWP, | |
| 1347 // and this could be a problem when the JVM is embedded. | |
| 1348 // We would prefer to use alternate signal stacks with T2 | |
| 1349 // Since there is currently no accurate way to detect T2 | |
| 1350 // we do not. Assuming T2 when running T1 causes sig 11s or assertions | |
| 1351 // on installing alternate signal stacks | |
| 1352 | |
| 1353 | |
| 1354 // 05/09/03: removed alternate signal stack support for Solaris | |
| 1355 // The alternate signal stack mechanism is no longer needed to | |
| 1356 // handle stack overflow. This is now handled by allocating | |
| 1357 // guard pages (red zone) and stackbanging. | |
| 1358 // Initially the alternate signal stack mechanism was removed because | |
| 1359 // it did not work with T1 llibthread. Alternate | |
| 1360 // signal stacks MUST have all threads bound to lwps. Applications | |
| 1361 // can create their own threads and attach them without their being | |
| 1362 // bound under T1. This is frequently the case for the primordial thread. | |
| 1363 // If we were ever to reenable this mechanism we would need to | |
| 1364 // use the dynamic check for T2 libthread. | |
| 1365 | |
| 1366 os::Solaris::init_thread_fpu_state(); | |
|
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1367 std::set_terminate(_handle_uncaught_cxx_exception); |
| 0 | 1368 } |
| 1369 | |
| 1370 | |
| 1371 | |
| 1372 // Free Solaris resources related to the OSThread | |
| 1373 void os::free_thread(OSThread* osthread) { | |
| 1374 assert(osthread != NULL, "os::free_thread but osthread not set"); | |
| 1375 | |
| 1376 | |
| 1377 // We are told to free resources of the argument thread, | |
| 1378 // but we can only really operate on the current thread. | |
| 1379 // The main thread must take the VMThread down synchronously | |
| 1380 // before the main thread exits and frees up CodeHeap | |
| 1381 guarantee((Thread::current()->osthread() == osthread | |
| 1382 || (osthread == VMThread::vm_thread()->osthread())), "os::free_thread but not current thread"); | |
| 1383 if (Thread::current()->osthread() == osthread) { | |
| 1384 // Restore caller's signal mask | |
| 1385 sigset_t sigmask = osthread->caller_sigmask(); | |
| 1386 thr_sigsetmask(SIG_SETMASK, &sigmask, NULL); | |
| 1387 } | |
| 1388 delete osthread; | |
| 1389 } | |
| 1390 | |
| 1391 void os::pd_start_thread(Thread* thread) { | |
| 1392 int status = thr_continue(thread->osthread()->thread_id()); | |
| 1393 assert_status(status == 0, status, "thr_continue failed"); | |
| 1394 } | |
| 1395 | |
| 1396 | |
| 1397 intx os::current_thread_id() { | |
| 1398 return (intx)thr_self(); | |
| 1399 } | |
| 1400 | |
| 1401 static pid_t _initial_pid = 0; | |
| 1402 | |
| 1403 int os::current_process_id() { | |
| 1404 return (int)(_initial_pid ? _initial_pid : getpid()); | |
| 1405 } | |
| 1406 | |
|
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1407 // gethrtime() should be monotonic according to the documentation, |
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1408 // but some virtualized platforms are known to break this guarantee. |
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1409 // getTimeNanos() must be guaranteed not to move backwards, so we |
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1410 // are forced to add a check here. |
| 0 | 1411 inline hrtime_t getTimeNanos() { |
|
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1412 const hrtime_t now = gethrtime(); |
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1413 const hrtime_t prev = max_hrtime; |
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1414 if (now <= prev) { |
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1415 return prev; // same or retrograde time; |
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1416 } |
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1417 const hrtime_t obsv = Atomic::cmpxchg(now, (volatile jlong*)&max_hrtime, prev); |
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1418 assert(obsv >= prev, "invariant"); // Monotonicity |
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1419 // If the CAS succeeded then we're done and return "now". |
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1420 // If the CAS failed and the observed value "obsv" is >= now then |
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1421 // we should return "obsv". If the CAS failed and now > obsv > prv then |
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1422 // some other thread raced this thread and installed a new value, in which case |
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1423 // we could either (a) retry the entire operation, (b) retry trying to install now |
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1424 // or (c) just return obsv. We use (c). No loop is required although in some cases |
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1425 // we might discard a higher "now" value in deference to a slightly lower but freshly |
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1426 // installed obsv value. That's entirely benign -- it admits no new orderings compared |
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1427 // to (a) or (b) -- and greatly reduces coherence traffic. |
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1428 // We might also condition (c) on the magnitude of the delta between obsv and now. |
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1429 // Avoiding excessive CAS operations to hot RW locations is critical. |
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1430 // See https://blogs.oracle.com/dave/entry/cas_and_cache_trivia_invalidate |
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1431 return (prev == obsv) ? now : obsv; |
| 0 | 1432 } |
| 1433 | |
| 1434 // Time since start-up in seconds to a fine granularity. | |
| 1435 // Used by VMSelfDestructTimer and the MemProfiler. | |
| 1436 double os::elapsedTime() { | |
| 1437 return (double)(getTimeNanos() - first_hrtime) / (double)hrtime_hz; | |
| 1438 } | |
| 1439 | |
| 1440 jlong os::elapsed_counter() { | |
| 1441 return (jlong)(getTimeNanos() - first_hrtime); | |
| 1442 } | |
| 1443 | |
| 1444 jlong os::elapsed_frequency() { | |
| 1445 return hrtime_hz; | |
| 1446 } | |
| 1447 | |
| 1448 // Return the real, user, and system times in seconds from an | |
| 1449 // arbitrary fixed point in the past. | |
| 1450 bool os::getTimesSecs(double* process_real_time, | |
| 1451 double* process_user_time, | |
| 1452 double* process_system_time) { | |
| 1453 struct tms ticks; | |
| 1454 clock_t real_ticks = times(&ticks); | |
| 1455 | |
| 1456 if (real_ticks == (clock_t) (-1)) { | |
| 1457 return false; | |
| 1458 } else { | |
| 1459 double ticks_per_second = (double) clock_tics_per_sec; | |
| 1460 *process_user_time = ((double) ticks.tms_utime) / ticks_per_second; | |
| 1461 *process_system_time = ((double) ticks.tms_stime) / ticks_per_second; | |
| 1462 // For consistency return the real time from getTimeNanos() | |
| 1463 // converted to seconds. | |
| 1464 *process_real_time = ((double) getTimeNanos()) / ((double) NANOUNITS); | |
| 1465 | |
| 1466 return true; | |
| 1467 } | |
| 1468 } | |
| 1469 | |
|
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1470 bool os::supports_vtime() { return true; } |
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1471 |
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1472 bool os::enable_vtime() { |
|
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1473 int fd = ::open("/proc/self/ctl", O_WRONLY); |
|
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1474 if (fd == -1) |
|
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1475 return false; |
|
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1476 |
|
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1477 long cmd[] = { PCSET, PR_MSACCT }; |
|
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1478 int res = ::write(fd, cmd, sizeof(long) * 2); |
|
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1479 ::close(fd); |
|
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1480 if (res != sizeof(long) * 2) |
|
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1481 return false; |
|
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1482 |
|
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1483 return true; |
|
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1484 } |
|
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1485 |
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1486 bool os::vtime_enabled() { |
|
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1487 int fd = ::open("/proc/self/status", O_RDONLY); |
|
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1488 if (fd == -1) |
|
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1489 return false; |
|
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1490 |
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1491 pstatus_t status; |
|
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1492 int res = os::read(fd, (void*) &status, sizeof(pstatus_t)); |
|
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1493 ::close(fd); |
|
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1494 if (res != sizeof(pstatus_t)) |
|
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1495 return false; |
|
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1496 |
|
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1497 return status.pr_flags & PR_MSACCT; |
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1498 } |
|
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1499 |
|
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1500 double os::elapsedVTime() { |
|
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1501 return (double)gethrvtime() / (double)hrtime_hz; |
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1502 } |
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1503 |
| 0 | 1504 // Used internally for comparisons only |
| 1505 // getTimeMillis guaranteed to not move backwards on Solaris | |
| 1506 jlong getTimeMillis() { | |
| 1507 jlong nanotime = getTimeNanos(); | |
|
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1508 return (jlong)(nanotime / NANOSECS_PER_MILLISEC); |
| 0 | 1509 } |
| 1510 | |
| 61 | 1511 // Must return millis since Jan 1 1970 for JVM_CurrentTimeMillis |
| 1512 jlong os::javaTimeMillis() { | |
| 0 | 1513 timeval t; |
| 1514 if (gettimeofday( &t, NULL) == -1) | |
|
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1515 fatal(err_msg("os::javaTimeMillis: gettimeofday (%s)", strerror(errno))); |
| 0 | 1516 return jlong(t.tv_sec) * 1000 + jlong(t.tv_usec) / 1000; |
| 1517 } | |
| 1518 | |
| 1519 jlong os::javaTimeNanos() { | |
| 1520 return (jlong)getTimeNanos(); | |
| 1521 } | |
| 1522 | |
| 1523 void os::javaTimeNanos_info(jvmtiTimerInfo *info_ptr) { | |
| 1524 info_ptr->max_value = ALL_64_BITS; // gethrtime() uses all 64 bits | |
| 1525 info_ptr->may_skip_backward = false; // not subject to resetting or drifting | |
| 1526 info_ptr->may_skip_forward = false; // not subject to resetting or drifting | |
| 1527 info_ptr->kind = JVMTI_TIMER_ELAPSED; // elapsed not CPU time | |
| 1528 } | |
| 1529 | |
| 1530 char * os::local_time_string(char *buf, size_t buflen) { | |
| 1531 struct tm t; | |
| 1532 time_t long_time; | |
| 1533 time(&long_time); | |
| 1534 localtime_r(&long_time, &t); | |
| 1535 jio_snprintf(buf, buflen, "%d-%02d-%02d %02d:%02d:%02d", | |
| 1536 t.tm_year + 1900, t.tm_mon + 1, t.tm_mday, | |
| 1537 t.tm_hour, t.tm_min, t.tm_sec); | |
| 1538 return buf; | |
| 1539 } | |
| 1540 | |
| 1541 // Note: os::shutdown() might be called very early during initialization, or | |
| 1542 // called from signal handler. Before adding something to os::shutdown(), make | |
| 1543 // sure it is async-safe and can handle partially initialized VM. | |
| 1544 void os::shutdown() { | |
| 1545 | |
| 1546 // allow PerfMemory to attempt cleanup of any persistent resources | |
| 1547 perfMemory_exit(); | |
| 1548 | |
| 1549 // needs to remove object in file system | |
| 1550 AttachListener::abort(); | |
| 1551 | |
| 1552 // flush buffered output, finish log files | |
| 1553 ostream_abort(); | |
| 1554 | |
| 1555 // Check for abort hook | |
| 1556 abort_hook_t abort_hook = Arguments::abort_hook(); | |
| 1557 if (abort_hook != NULL) { | |
| 1558 abort_hook(); | |
| 1559 } | |
| 1560 } | |
| 1561 | |
| 1562 // Note: os::abort() might be called very early during initialization, or | |
| 1563 // called from signal handler. Before adding something to os::abort(), make | |
| 1564 // sure it is async-safe and can handle partially initialized VM. | |
| 1565 void os::abort(bool dump_core) { | |
| 1566 os::shutdown(); | |
| 1567 if (dump_core) { | |
| 1568 #ifndef PRODUCT | |
| 1569 fdStream out(defaultStream::output_fd()); | |
| 1570 out.print_raw("Current thread is "); | |
| 1571 char buf[16]; | |
| 1572 jio_snprintf(buf, sizeof(buf), UINTX_FORMAT, os::current_thread_id()); | |
| 1573 out.print_raw_cr(buf); | |
| 1574 out.print_raw_cr("Dumping core ..."); | |
| 1575 #endif | |
| 1576 ::abort(); // dump core (for debugging) | |
| 1577 } | |
| 1578 | |
| 1579 ::exit(1); | |
| 1580 } | |
| 1581 | |
| 1582 // Die immediately, no exit hook, no abort hook, no cleanup. | |
| 1583 void os::die() { | |
|
8066
b5e3ec9c69fa
8007779: os::die() on solaris should generate core file
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7629
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changeset
|
1584 ::abort(); // dump core (for debugging) |
| 0 | 1585 } |
| 1586 | |
| 1587 // DLL functions | |
| 1588 | |
| 1589 const char* os::dll_file_extension() { return ".so"; } | |
| 1590 | |
|
2130
34d64ad817f4
7009828: Fix for 6938627 breaks visualvm monitoring when -Djava.io.tmpdir is defined
coleenp
parents:
2102
diff
changeset
|
1591 // This must be hard coded because it's the system's temporary |
|
34d64ad817f4
7009828: Fix for 6938627 breaks visualvm monitoring when -Djava.io.tmpdir is defined
coleenp
parents:
2102
diff
changeset
|
1592 // directory not the java application's temp directory, ala java.io.tmpdir. |
|
34d64ad817f4
7009828: Fix for 6938627 breaks visualvm monitoring when -Djava.io.tmpdir is defined
coleenp
parents:
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diff
changeset
|
1593 const char* os::get_temp_directory() { return "/tmp"; } |
| 0 | 1594 |
| 691 | 1595 static bool file_exists(const char* filename) { |
| 1596 struct stat statbuf; | |
| 1597 if (filename == NULL || strlen(filename) == 0) { | |
| 1598 return false; | |
| 1599 } | |
| 1600 return os::stat(filename, &statbuf) == 0; | |
| 1601 } | |
| 1602 | |
|
6966
6cb0d32b828b
8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
bpittore
parents:
6882
diff
changeset
|
1603 bool os::dll_build_name(char* buffer, size_t buflen, |
| 691 | 1604 const char* pname, const char* fname) { |
|
6966
6cb0d32b828b
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diff
changeset
|
1605 bool retval = false; |
| 242 | 1606 const size_t pnamelen = pname ? strlen(pname) : 0; |
| 1607 | |
|
6966
6cb0d32b828b
8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
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diff
changeset
|
1608 // Return error on buffer overflow. |
| 242 | 1609 if (pnamelen + strlen(fname) + 10 > (size_t) buflen) { |
|
6966
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8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
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diff
changeset
|
1610 return retval; |
| 242 | 1611 } |
| 1612 | |
| 1613 if (pnamelen == 0) { | |
| 691 | 1614 snprintf(buffer, buflen, "lib%s.so", fname); |
|
6966
6cb0d32b828b
8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
bpittore
parents:
6882
diff
changeset
|
1615 retval = true; |
| 691 | 1616 } else if (strchr(pname, *os::path_separator()) != NULL) { |
| 1617 int n; | |
| 1618 char** pelements = split_path(pname, &n); | |
|
9059
17bf4d428955
8006103: [parfait] Possible null pointer dereference at hotspot/src/os/linux/vm/os_linux.cpp; os_windows.cpp; os_solaris.cpp; os_bsd.cpp
ccheung
parents:
8744
diff
changeset
|
1619 if (pelements == NULL) { |
| 9062 | 1620 return false; |
|
9059
17bf4d428955
8006103: [parfait] Possible null pointer dereference at hotspot/src/os/linux/vm/os_linux.cpp; os_windows.cpp; os_solaris.cpp; os_bsd.cpp
ccheung
parents:
8744
diff
changeset
|
1621 } |
| 691 | 1622 for (int i = 0 ; i < n ; i++) { |
| 1623 // really shouldn't be NULL but what the heck, check can't hurt | |
| 1624 if (pelements[i] == NULL || strlen(pelements[i]) == 0) { | |
| 1625 continue; // skip the empty path values | |
| 1626 } | |
| 1627 snprintf(buffer, buflen, "%s/lib%s.so", pelements[i], fname); | |
| 1628 if (file_exists(buffer)) { | |
|
6966
6cb0d32b828b
8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
bpittore
parents:
6882
diff
changeset
|
1629 retval = true; |
| 691 | 1630 break; |
| 1631 } | |
| 1632 } | |
| 1633 // release the storage | |
| 1634 for (int i = 0 ; i < n ; i++) { | |
| 1635 if (pelements[i] != NULL) { | |
| 6197 | 1636 FREE_C_HEAP_ARRAY(char, pelements[i], mtInternal); |
| 691 | 1637 } |
| 1638 } | |
| 1639 if (pelements != NULL) { | |
| 6197 | 1640 FREE_C_HEAP_ARRAY(char*, pelements, mtInternal); |
| 691 | 1641 } |
| 242 | 1642 } else { |
| 691 | 1643 snprintf(buffer, buflen, "%s/lib%s.so", pname, fname); |
|
6966
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8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
bpittore
parents:
6882
diff
changeset
|
1644 retval = true; |
|
6cb0d32b828b
8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
bpittore
parents:
6882
diff
changeset
|
1645 } |
|
6cb0d32b828b
8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
bpittore
parents:
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diff
changeset
|
1646 return retval; |
| 242 | 1647 } |
| 1648 | |
|
7456
7d42f3b08300
8005044: remove crufty '_g' support from HS runtime code
dcubed
parents:
7206
diff
changeset
|
1649 // check if addr is inside libjvm.so |
| 0 | 1650 bool os::address_is_in_vm(address addr) { |
| 1651 static address libjvm_base_addr; | |
| 1652 Dl_info dlinfo; | |
| 1653 | |
| 1654 if (libjvm_base_addr == NULL) { | |
|
11092
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
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diff
changeset
|
1655 if (dladdr(CAST_FROM_FN_PTR(void *, os::address_is_in_vm), &dlinfo) != 0) { |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1656 libjvm_base_addr = (address)dlinfo.dli_fbase; |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1657 } |
| 0 | 1658 assert(libjvm_base_addr !=NULL, "Cannot obtain base address for libjvm"); |
| 1659 } | |
| 1660 | |
|
11092
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
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diff
changeset
|
1661 if (dladdr((void *)addr, &dlinfo) != 0) { |
| 0 | 1662 if (libjvm_base_addr == (address)dlinfo.dli_fbase) return true; |
| 1663 } | |
| 1664 | |
| 1665 return false; | |
| 1666 } | |
| 1667 | |
| 1668 typedef int (*dladdr1_func_type) (void *, Dl_info *, void **, int); | |
| 1669 static dladdr1_func_type dladdr1_func = NULL; | |
| 1670 | |
| 1671 bool os::dll_address_to_function_name(address addr, char *buf, | |
| 1672 int buflen, int * offset) { | |
|
11092
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
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diff
changeset
|
1673 // buf is not optional, but offset is optional |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
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changeset
|
1674 assert(buf != NULL, "sanity check"); |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
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diff
changeset
|
1675 |
| 0 | 1676 Dl_info dlinfo; |
| 1677 | |
| 1678 // dladdr1_func was initialized in os::init() | |
|
11092
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
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diff
changeset
|
1679 if (dladdr1_func != NULL) { |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
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changeset
|
1680 // yes, we have dladdr1 |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
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diff
changeset
|
1681 |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
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diff
changeset
|
1682 // Support for dladdr1 is checked at runtime; it may be |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
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diff
changeset
|
1683 // available even if the vm is built on a machine that does |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
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diff
changeset
|
1684 // not have dladdr1 support. Make sure there is a value for |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
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diff
changeset
|
1685 // RTLD_DL_SYMENT. |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
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diff
changeset
|
1686 #ifndef RTLD_DL_SYMENT |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
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10986
diff
changeset
|
1687 #define RTLD_DL_SYMENT 1 |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1688 #endif |
|
2259
2a57c59eb548
7018101: os::dll_address_to_function_name returning wrong answers in 64 bit
never
parents:
2130
diff
changeset
|
1689 #ifdef _LP64 |
|
11092
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
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diff
changeset
|
1690 Elf64_Sym * info; |
|
2259
2a57c59eb548
7018101: os::dll_address_to_function_name returning wrong answers in 64 bit
never
parents:
2130
diff
changeset
|
1691 #else |
|
11092
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1692 Elf32_Sym * info; |
|
2259
2a57c59eb548
7018101: os::dll_address_to_function_name returning wrong answers in 64 bit
never
parents:
2130
diff
changeset
|
1693 #endif |
|
11092
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1694 if (dladdr1_func((void *)addr, &dlinfo, (void **)&info, |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1695 RTLD_DL_SYMENT) != 0) { |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1696 // see if we have a matching symbol that covers our address |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1697 if (dlinfo.dli_saddr != NULL && |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1698 (char *)dlinfo.dli_saddr + info->st_size > (char *)addr) { |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1699 if (dlinfo.dli_sname != NULL) { |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1700 if (!Decoder::demangle(dlinfo.dli_sname, buf, buflen)) { |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1701 jio_snprintf(buf, buflen, "%s", dlinfo.dli_sname); |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
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diff
changeset
|
1702 } |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1703 if (offset != NULL) *offset = addr - (address)dlinfo.dli_saddr; |
|
2022
2d4762ec74af
7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
1972
diff
changeset
|
1704 return true; |
|
2d4762ec74af
7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
1972
diff
changeset
|
1705 } |
|
2d4762ec74af
7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
1972
diff
changeset
|
1706 } |
|
11092
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1707 // no matching symbol so try for just file info |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1708 if (dlinfo.dli_fname != NULL && dlinfo.dli_fbase != NULL) { |
|
2022
2d4762ec74af
7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
1972
diff
changeset
|
1709 if (Decoder::decode((address)(addr - (address)dlinfo.dli_fbase), |
|
11092
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1710 buf, buflen, offset, dlinfo.dli_fname)) { |
| 0 | 1711 return true; |
|
2022
2d4762ec74af
7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
1972
diff
changeset
|
1712 } |
| 0 | 1713 } |
|
11092
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
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diff
changeset
|
1714 } |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1715 buf[0] = '\0'; |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1716 if (offset != NULL) *offset = -1; |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1717 return false; |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1718 } |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1719 |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1720 // no, only dladdr is available |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
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diff
changeset
|
1721 if (dladdr((void *)addr, &dlinfo) != 0) { |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1722 // see if we have a matching symbol |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1723 if (dlinfo.dli_saddr != NULL && dlinfo.dli_sname != NULL) { |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
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diff
changeset
|
1724 if (!Decoder::demangle(dlinfo.dli_sname, buf, buflen)) { |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1725 jio_snprintf(buf, buflen, dlinfo.dli_sname); |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
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diff
changeset
|
1726 } |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1727 if (offset != NULL) *offset = addr - (address)dlinfo.dli_saddr; |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1728 return true; |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
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diff
changeset
|
1729 } |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1730 // no matching symbol so try for just file info |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1731 if (dlinfo.dli_fname != NULL && dlinfo.dli_fbase != NULL) { |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1732 if (Decoder::decode((address)(addr - (address)dlinfo.dli_fbase), |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
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diff
changeset
|
1733 buf, buflen, offset, dlinfo.dli_fname)) { |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
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diff
changeset
|
1734 return true; |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1735 } |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1736 } |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
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diff
changeset
|
1737 } |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1738 buf[0] = '\0'; |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1739 if (offset != NULL) *offset = -1; |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1740 return false; |
| 0 | 1741 } |
| 1742 | |
| 1743 bool os::dll_address_to_library_name(address addr, char* buf, | |
| 1744 int buflen, int* offset) { | |
|
11092
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
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diff
changeset
|
1745 // buf is not optional, but offset is optional |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
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diff
changeset
|
1746 assert(buf != NULL, "sanity check"); |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
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diff
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|
1747 |
| 0 | 1748 Dl_info dlinfo; |
| 1749 | |
|
11092
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
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diff
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|
1750 if (dladdr((void*)addr, &dlinfo) != 0) { |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
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diff
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|
1751 if (dlinfo.dli_fname != NULL) { |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
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diff
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|
1752 jio_snprintf(buf, buflen, "%s", dlinfo.dli_fname); |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
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diff
changeset
|
1753 } |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
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diff
changeset
|
1754 if (dlinfo.dli_fbase != NULL && offset != NULL) { |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
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diff
changeset
|
1755 *offset = addr - (address)dlinfo.dli_fbase; |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
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diff
changeset
|
1756 } |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
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diff
changeset
|
1757 return true; |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
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diff
changeset
|
1758 } |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
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diff
changeset
|
1759 |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
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diff
changeset
|
1760 buf[0] = '\0'; |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
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|
1761 if (offset) *offset = -1; |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
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|
1762 return false; |
| 0 | 1763 } |
| 1764 | |
| 1765 // Prints the names and full paths of all opened dynamic libraries | |
| 1766 // for current process | |
| 1767 void os::print_dll_info(outputStream * st) { | |
|
11092
59b052799158
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dcubed
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|
1768 Dl_info dli; |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
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|
1769 void *handle; |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
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|
1770 Link_map *map; |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
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|
1771 Link_map *p; |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
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|
1772 |
|
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dcubed
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|
1773 st->print_cr("Dynamic libraries:"); st->flush(); |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
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|
1774 |
|
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|
1775 if (dladdr(CAST_FROM_FN_PTR(void *, os::print_dll_info), &dli) == 0 || |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
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|
1776 dli.dli_fname == NULL) { |
|
59b052799158
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dcubed
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|
1777 st->print_cr("Error: Cannot print dynamic libraries."); |
|
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dcubed
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|
1778 return; |
|
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8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
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|
1779 } |
|
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|
1780 handle = dlopen(dli.dli_fname, RTLD_LAZY); |
|
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dcubed
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|
1781 if (handle == NULL) { |
|
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|
1782 st->print_cr("Error: Cannot print dynamic libraries."); |
|
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|
1783 return; |
|
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changeset
|
1784 } |
|
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changeset
|
1785 dlinfo(handle, RTLD_DI_LINKMAP, &map); |
|
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|
1786 if (map == NULL) { |
|
59b052799158
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|
1787 st->print_cr("Error: Cannot print dynamic libraries."); |
|
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|
1788 return; |
|
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changeset
|
1789 } |
|
59b052799158
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changeset
|
1790 |
|
59b052799158
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changeset
|
1791 while (map->l_prev != NULL) |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
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changeset
|
1792 map = map->l_prev; |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
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changeset
|
1793 |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
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changeset
|
1794 while (map != NULL) { |
|
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dcubed
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changeset
|
1795 st->print_cr(PTR_FORMAT " \t%s", map->l_addr, map->l_name); |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
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changeset
|
1796 map = map->l_next; |
|
59b052799158
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changeset
|
1797 } |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
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changeset
|
1798 |
|
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|
1799 dlclose(handle); |
| 0 | 1800 } |
| 1801 | |
| 1802 // Loads .dll/.so and | |
| 1803 // in case of error it checks if .dll/.so was built for the | |
| 1804 // same architecture as Hotspot is running on | |
| 1805 | |
| 1806 void * os::dll_load(const char *filename, char *ebuf, int ebuflen) | |
| 1807 { | |
| 1808 void * result= ::dlopen(filename, RTLD_LAZY); | |
| 1809 if (result != NULL) { | |
| 1810 // Successful loading | |
| 1811 return result; | |
| 1812 } | |
| 1813 | |
| 1814 Elf32_Ehdr elf_head; | |
| 1815 | |
| 1816 // Read system error message into ebuf | |
| 1817 // It may or may not be overwritten below | |
| 1818 ::strncpy(ebuf, ::dlerror(), ebuflen-1); | |
| 1819 ebuf[ebuflen-1]='\0'; | |
| 1820 int diag_msg_max_length=ebuflen-strlen(ebuf); | |
| 1821 char* diag_msg_buf=ebuf+strlen(ebuf); | |
| 1822 | |
| 1823 if (diag_msg_max_length==0) { | |
| 1824 // No more space in ebuf for additional diagnostics message | |
| 1825 return NULL; | |
| 1826 } | |
| 1827 | |
| 1828 | |
| 1829 int file_descriptor= ::open(filename, O_RDONLY | O_NONBLOCK); | |
| 1830 | |
| 1831 if (file_descriptor < 0) { | |
| 1832 // Can't open library, report dlerror() message | |
| 1833 return NULL; | |
| 1834 } | |
| 1835 | |
| 1836 bool failed_to_read_elf_head= | |
| 1837 (sizeof(elf_head)!= | |
| 1838 (::read(file_descriptor, &elf_head,sizeof(elf_head)))) ; | |
| 1839 | |
| 1840 ::close(file_descriptor); | |
| 1841 if (failed_to_read_elf_head) { | |
| 1842 // file i/o error - report dlerror() msg | |
| 1843 return NULL; | |
| 1844 } | |
| 1845 | |
| 1846 typedef struct { | |
| 1847 Elf32_Half code; // Actual value as defined in elf.h | |
| 1848 Elf32_Half compat_class; // Compatibility of archs at VM's sense | |
| 1849 char elf_class; // 32 or 64 bit | |
| 1850 char endianess; // MSB or LSB | |
| 1851 char* name; // String representation | |
| 1852 } arch_t; | |
| 1853 | |
| 1854 static const arch_t arch_array[]={ | |
| 1855 {EM_386, EM_386, ELFCLASS32, ELFDATA2LSB, (char*)"IA 32"}, | |
| 1856 {EM_486, EM_386, ELFCLASS32, ELFDATA2LSB, (char*)"IA 32"}, | |
| 1857 {EM_IA_64, EM_IA_64, ELFCLASS64, ELFDATA2LSB, (char*)"IA 64"}, | |
| 1858 {EM_X86_64, EM_X86_64, ELFCLASS64, ELFDATA2LSB, (char*)"AMD 64"}, | |
| 1859 {EM_SPARC, EM_SPARC, ELFCLASS32, ELFDATA2MSB, (char*)"Sparc 32"}, | |
| 1860 {EM_SPARC32PLUS, EM_SPARC, ELFCLASS32, ELFDATA2MSB, (char*)"Sparc 32"}, | |
| 1861 {EM_SPARCV9, EM_SPARCV9, ELFCLASS64, ELFDATA2MSB, (char*)"Sparc v9 64"}, | |
| 1862 {EM_PPC, EM_PPC, ELFCLASS32, ELFDATA2MSB, (char*)"Power PC 32"}, | |
|
1681
126ea7725993
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diff
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|
1863 {EM_PPC64, EM_PPC64, ELFCLASS64, ELFDATA2MSB, (char*)"Power PC 64"}, |
|
126ea7725993
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1642
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|
1864 {EM_ARM, EM_ARM, ELFCLASS32, ELFDATA2LSB, (char*)"ARM 32"} |
| 0 | 1865 }; |
| 1866 | |
| 1867 #if (defined IA32) | |
| 1868 static Elf32_Half running_arch_code=EM_386; | |
| 1869 #elif (defined AMD64) | |
| 1870 static Elf32_Half running_arch_code=EM_X86_64; | |
| 1871 #elif (defined IA64) | |
| 1872 static Elf32_Half running_arch_code=EM_IA_64; | |
| 1873 #elif (defined __sparc) && (defined _LP64) | |
| 1874 static Elf32_Half running_arch_code=EM_SPARCV9; | |
| 1875 #elif (defined __sparc) && (!defined _LP64) | |
| 1876 static Elf32_Half running_arch_code=EM_SPARC; | |
| 1877 #elif (defined __powerpc64__) | |
| 1878 static Elf32_Half running_arch_code=EM_PPC64; | |
| 1879 #elif (defined __powerpc__) | |
| 1880 static Elf32_Half running_arch_code=EM_PPC; | |
|
1681
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diff
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|
1881 #elif (defined ARM) |
|
126ea7725993
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|
1882 static Elf32_Half running_arch_code=EM_ARM; |
| 0 | 1883 #else |
| 1884 #error Method os::dll_load requires that one of following is defined:\ | |
|
1681
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|
1885 IA32, AMD64, IA64, __sparc, __powerpc__, ARM, ARM |
| 0 | 1886 #endif |
| 1887 | |
| 1888 // Identify compatability class for VM's architecture and library's architecture | |
| 1889 // Obtain string descriptions for architectures | |
| 1890 | |
| 1891 arch_t lib_arch={elf_head.e_machine,0,elf_head.e_ident[EI_CLASS], elf_head.e_ident[EI_DATA], NULL}; | |
| 1892 int running_arch_index=-1; | |
| 1893 | |
| 1894 for (unsigned int i=0 ; i < ARRAY_SIZE(arch_array) ; i++ ) { | |
| 1895 if (running_arch_code == arch_array[i].code) { | |
| 1896 running_arch_index = i; | |
| 1897 } | |
| 1898 if (lib_arch.code == arch_array[i].code) { | |
| 1899 lib_arch.compat_class = arch_array[i].compat_class; | |
| 1900 lib_arch.name = arch_array[i].name; | |
| 1901 } | |
| 1902 } | |
| 1903 | |
| 1904 assert(running_arch_index != -1, | |
| 1905 "Didn't find running architecture code (running_arch_code) in arch_array"); | |
| 1906 if (running_arch_index == -1) { | |
| 1907 // Even though running architecture detection failed | |
| 1908 // we may still continue with reporting dlerror() message | |
| 1909 return NULL; | |
| 1910 } | |
| 1911 | |
| 1912 if (lib_arch.endianess != arch_array[running_arch_index].endianess) { | |
| 1913 ::snprintf(diag_msg_buf, diag_msg_max_length-1," (Possible cause: endianness mismatch)"); | |
| 1914 return NULL; | |
| 1915 } | |
| 1916 | |
| 1917 if (lib_arch.elf_class != arch_array[running_arch_index].elf_class) { | |
| 1918 ::snprintf(diag_msg_buf, diag_msg_max_length-1," (Possible cause: architecture word width mismatch)"); | |
| 1919 return NULL; | |
| 1920 } | |
| 1921 | |
| 1922 if (lib_arch.compat_class != arch_array[running_arch_index].compat_class) { | |
| 1923 if ( lib_arch.name!=NULL ) { | |
| 1924 ::snprintf(diag_msg_buf, diag_msg_max_length-1, | |
| 1925 " (Possible cause: can't load %s-bit .so on a %s-bit platform)", | |
| 1926 lib_arch.name, arch_array[running_arch_index].name); | |
| 1927 } else { | |
| 1928 ::snprintf(diag_msg_buf, diag_msg_max_length-1, | |
| 1929 " (Possible cause: can't load this .so (machine code=0x%x) on a %s-bit platform)", | |
| 1930 lib_arch.code, | |
| 1931 arch_array[running_arch_index].name); | |
| 1932 } | |
| 1933 } | |
| 1934 | |
| 1935 return NULL; | |
| 1936 } | |
| 1937 | |
| 242 | 1938 void* os::dll_lookup(void* handle, const char* name) { |
| 1939 return dlsym(handle, name); | |
| 1940 } | |
| 0 | 1941 |
|
17684
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|
1942 void* os::get_default_process_handle() { |
|
d1621038becf
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|
1943 return (void*)::dlopen(NULL, RTLD_LAZY); |
|
d1621038becf
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|
1944 } |
|
d1621038becf
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|
1945 |
|
1980
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diff
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|
1946 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
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|
1947 char pathbuf[MAX_PATH]; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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diff
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|
1948 if (strlen(path) > MAX_PATH - 1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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|
1949 errno = ENAMETOOLONG; |
|
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diff
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|
1950 return -1; |
|
828eafbd85cc
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diff
changeset
|
1951 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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diff
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|
1952 os::native_path(strcpy(pathbuf, path)); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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diff
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|
1953 return ::stat(pathbuf, sbuf); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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diff
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|
1954 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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diff
changeset
|
1955 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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diff
changeset
|
1956 static bool _print_ascii_file(const char* filename, outputStream* st) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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diff
changeset
|
1957 int fd = ::open(filename, O_RDONLY); |
| 0 | 1958 if (fd == -1) { |
| 1959 return false; | |
| 1960 } | |
| 1961 | |
| 1962 char buf[32]; | |
| 1963 int bytes; | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
1964 while ((bytes = ::read(fd, buf, sizeof(buf))) > 0) { |
| 0 | 1965 st->print_raw(buf, bytes); |
| 1966 } | |
| 1967 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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diff
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|
1968 ::close(fd); |
| 0 | 1969 |
| 1970 return true; | |
| 1971 } | |
| 1972 | |
|
6080
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|
1973 void os::print_os_info_brief(outputStream* st) { |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
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diff
changeset
|
1974 os::Solaris::print_distro_info(st); |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
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|
1975 |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
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changeset
|
1976 os::Posix::print_uname_info(st); |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
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changeset
|
1977 |
|
7432b9db36ff
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5903
diff
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|
1978 os::Solaris::print_libversion_info(st); |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
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diff
changeset
|
1979 } |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
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diff
changeset
|
1980 |
| 0 | 1981 void os::print_os_info(outputStream* st) { |
| 1982 st->print("OS:"); | |
| 1983 | |
|
6080
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|
1984 os::Solaris::print_distro_info(st); |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
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diff
changeset
|
1985 |
|
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1986 os::Posix::print_uname_info(st); |
|
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1987 |
|
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1988 os::Solaris::print_libversion_info(st); |
|
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1989 |
|
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1990 os::Posix::print_rlimit_info(st); |
|
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1991 |
|
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1992 os::Posix::print_load_average(st); |
|
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1993 } |
|
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1994 |
|
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1995 void os::Solaris::print_distro_info(outputStream* st) { |
| 0 | 1996 if (!_print_ascii_file("/etc/release", st)) { |
|
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1997 st->print("Solaris"); |
|
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|
1998 } |
|
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|
1999 st->cr(); |
|
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|
2000 } |
|
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|
2001 |
|
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2002 void os::Solaris::print_libversion_info(outputStream* st) { |
|
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2003 if (os::Solaris::T2_libthread()) { |
|
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|
2004 st->print(" (T2 libthread)"); |
|
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|
2005 } |
|
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|
2006 else { |
|
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|
2007 st->print(" (T1 libthread)"); |
| 0 | 2008 } |
| 2009 st->cr(); | |
|
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|
2010 } |
| 0 | 2011 |
| 2012 static bool check_addr0(outputStream* st) { | |
| 2013 jboolean status = false; | |
|
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|
2014 int fd = ::open("/proc/self/map",O_RDONLY); |
| 0 | 2015 if (fd >= 0) { |
| 2016 prmap_t p; | |
|
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|
2017 while(::read(fd, &p, sizeof(p)) > 0) { |
| 0 | 2018 if (p.pr_vaddr == 0x0) { |
| 2019 st->print("Warning: Address: 0x%x, Size: %dK, ",p.pr_vaddr, p.pr_size/1024, p.pr_mapname); | |
| 2020 st->print("Mapped file: %s, ", p.pr_mapname[0] == '\0' ? "None" : p.pr_mapname); | |
| 2021 st->print("Access:"); | |
| 2022 st->print("%s",(p.pr_mflags & MA_READ) ? "r" : "-"); | |
| 2023 st->print("%s",(p.pr_mflags & MA_WRITE) ? "w" : "-"); | |
| 2024 st->print("%s",(p.pr_mflags & MA_EXEC) ? "x" : "-"); | |
| 2025 st->cr(); | |
| 2026 status = true; | |
| 2027 } | |
| 2028 } | |
| 17707 | 2029 ::close(fd); |
| 0 | 2030 } |
| 2031 return status; | |
| 2032 } | |
| 2033 | |
|
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|
2034 void os::pd_print_cpu_info(outputStream* st) { |
|
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|
2035 // Nothing to do for now. |
|
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|
2036 } |
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|
2037 |
| 0 | 2038 void os::print_memory_info(outputStream* st) { |
| 2039 st->print("Memory:"); | |
| 2040 st->print(" %dk page", os::vm_page_size()>>10); | |
| 2041 st->print(", physical " UINT64_FORMAT "k", os::physical_memory()>>10); | |
| 2042 st->print("(" UINT64_FORMAT "k free)", os::available_memory() >> 10); | |
| 2043 st->cr(); | |
|
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|
2044 if (VMError::fatal_error_in_progress()) { |
|
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|
2045 (void) check_addr0(st); |
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|
2046 } |
| 0 | 2047 } |
| 2048 | |
| 2049 void os::print_siginfo(outputStream* st, void* siginfo) { | |
| 14410 | 2050 const siginfo_t* si = (const siginfo_t*)siginfo; |
| 2051 | |
| 2052 os::Posix::print_siginfo_brief(st, si); | |
| 2053 | |
| 2054 if (si && (si->si_signo == SIGBUS || si->si_signo == SIGSEGV) && | |
| 0 | 2055 UseSharedSpaces) { |
| 2056 FileMapInfo* mapinfo = FileMapInfo::current_info(); | |
| 2057 if (mapinfo->is_in_shared_space(si->si_addr)) { | |
| 2058 st->print("\n\nError accessing class data sharing archive." \ | |
| 2059 " Mapped file inaccessible during execution, " \ | |
| 2060 " possible disk/network problem."); | |
| 2061 } | |
| 2062 } | |
| 2063 st->cr(); | |
| 2064 } | |
| 2065 | |
| 2066 // Moved from whole group, because we need them here for diagnostic | |
| 2067 // prints. | |
| 2068 #define OLDMAXSIGNUM 32 | |
| 2069 static int Maxsignum = 0; | |
| 2070 static int *ourSigFlags = NULL; | |
| 2071 | |
| 2072 extern "C" void sigINTRHandler(int, siginfo_t*, void*); | |
| 2073 | |
| 2074 int os::Solaris::get_our_sigflags(int sig) { | |
| 2075 assert(ourSigFlags!=NULL, "signal data structure not initialized"); | |
| 2076 assert(sig > 0 && sig < Maxsignum, "vm signal out of expected range"); | |
| 2077 return ourSigFlags[sig]; | |
| 2078 } | |
| 2079 | |
| 2080 void os::Solaris::set_our_sigflags(int sig, int flags) { | |
| 2081 assert(ourSigFlags!=NULL, "signal data structure not initialized"); | |
| 2082 assert(sig > 0 && sig < Maxsignum, "vm signal out of expected range"); | |
| 2083 ourSigFlags[sig] = flags; | |
| 2084 } | |
| 2085 | |
| 2086 | |
| 2087 static const char* get_signal_handler_name(address handler, | |
| 2088 char* buf, int buflen) { | |
| 2089 int offset; | |
| 2090 bool found = os::dll_address_to_library_name(handler, buf, buflen, &offset); | |
| 2091 if (found) { | |
| 2092 // skip directory names | |
| 2093 const char *p1, *p2; | |
| 2094 p1 = buf; | |
| 2095 size_t len = strlen(os::file_separator()); | |
| 2096 while ((p2 = strstr(p1, os::file_separator())) != NULL) p1 = p2 + len; | |
| 2097 jio_snprintf(buf, buflen, "%s+0x%x", p1, offset); | |
| 2098 } else { | |
| 2099 jio_snprintf(buf, buflen, PTR_FORMAT, handler); | |
| 2100 } | |
| 2101 return buf; | |
| 2102 } | |
| 2103 | |
| 2104 static void print_signal_handler(outputStream* st, int sig, | |
| 2105 char* buf, size_t buflen) { | |
| 2106 struct sigaction sa; | |
| 2107 | |
| 2108 sigaction(sig, NULL, &sa); | |
| 2109 | |
| 2110 st->print("%s: ", os::exception_name(sig, buf, buflen)); | |
| 2111 | |
| 2112 address handler = (sa.sa_flags & SA_SIGINFO) | |
| 2113 ? CAST_FROM_FN_PTR(address, sa.sa_sigaction) | |
| 2114 : CAST_FROM_FN_PTR(address, sa.sa_handler); | |
| 2115 | |
| 2116 if (handler == CAST_FROM_FN_PTR(address, SIG_DFL)) { | |
| 2117 st->print("SIG_DFL"); | |
| 2118 } else if (handler == CAST_FROM_FN_PTR(address, SIG_IGN)) { | |
| 2119 st->print("SIG_IGN"); | |
| 2120 } else { | |
| 2121 st->print("[%s]", get_signal_handler_name(handler, buf, buflen)); | |
| 2122 } | |
| 2123 | |
| 14410 | 2124 st->print(", sa_mask[0]="); |
| 2125 os::Posix::print_signal_set_short(st, &sa.sa_mask); | |
| 0 | 2126 |
| 2127 address rh = VMError::get_resetted_sighandler(sig); | |
| 2128 // May be, handler was resetted by VMError? | |
| 2129 if(rh != NULL) { | |
| 2130 handler = rh; | |
| 2131 sa.sa_flags = VMError::get_resetted_sigflags(sig); | |
| 2132 } | |
| 2133 | |
| 14410 | 2134 st->print(", sa_flags="); |
| 2135 os::Posix::print_sa_flags(st, sa.sa_flags); | |
| 0 | 2136 |
| 2137 // Check: is it our handler? | |
| 2138 if(handler == CAST_FROM_FN_PTR(address, signalHandler) || | |
| 2139 handler == CAST_FROM_FN_PTR(address, sigINTRHandler)) { | |
| 2140 // It is our signal handler | |
| 2141 // check for flags | |
| 2142 if(sa.sa_flags != os::Solaris::get_our_sigflags(sig)) { | |
| 2143 st->print( | |
| 2144 ", flags was changed from " PTR32_FORMAT ", consider using jsig library", | |
| 2145 os::Solaris::get_our_sigflags(sig)); | |
| 2146 } | |
| 2147 } | |
| 2148 st->cr(); | |
| 2149 } | |
| 2150 | |
| 2151 void os::print_signal_handlers(outputStream* st, char* buf, size_t buflen) { | |
| 2152 st->print_cr("Signal Handlers:"); | |
| 2153 print_signal_handler(st, SIGSEGV, buf, buflen); | |
| 2154 print_signal_handler(st, SIGBUS , buf, buflen); | |
| 2155 print_signal_handler(st, SIGFPE , buf, buflen); | |
| 2156 print_signal_handler(st, SIGPIPE, buf, buflen); | |
| 2157 print_signal_handler(st, SIGXFSZ, buf, buflen); | |
| 2158 print_signal_handler(st, SIGILL , buf, buflen); | |
| 2159 print_signal_handler(st, INTERRUPT_SIGNAL, buf, buflen); | |
| 2160 print_signal_handler(st, ASYNC_SIGNAL, buf, buflen); | |
| 2161 print_signal_handler(st, BREAK_SIGNAL, buf, buflen); | |
| 2162 print_signal_handler(st, SHUTDOWN1_SIGNAL , buf, buflen); | |
| 2163 print_signal_handler(st, SHUTDOWN2_SIGNAL , buf, buflen); | |
| 2164 print_signal_handler(st, SHUTDOWN3_SIGNAL, buf, buflen); | |
| 2165 print_signal_handler(st, os::Solaris::SIGinterrupt(), buf, buflen); | |
| 2166 print_signal_handler(st, os::Solaris::SIGasync(), buf, buflen); | |
| 2167 } | |
| 2168 | |
| 2169 static char saved_jvm_path[MAXPATHLEN] = { 0 }; | |
| 2170 | |
|
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2171 // Find the full path to the current module, libjvm.so |
| 0 | 2172 void os::jvm_path(char *buf, jint buflen) { |
| 2173 // Error checking. | |
| 2174 if (buflen < MAXPATHLEN) { | |
| 2175 assert(false, "must use a large-enough buffer"); | |
| 2176 buf[0] = '\0'; | |
| 2177 return; | |
| 2178 } | |
| 2179 // Lazy resolve the path to current module. | |
| 2180 if (saved_jvm_path[0] != 0) { | |
| 2181 strcpy(buf, saved_jvm_path); | |
| 2182 return; | |
| 2183 } | |
| 2184 | |
| 2185 Dl_info dlinfo; | |
| 2186 int ret = dladdr(CAST_FROM_FN_PTR(void *, os::jvm_path), &dlinfo); | |
| 2187 assert(ret != 0, "cannot locate libjvm"); | |
|
11092
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|
2188 if (ret != 0 && dlinfo.dli_fname != NULL) { |
|
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|
2189 realpath((char *)dlinfo.dli_fname, buf); |
|
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|
2190 } else { |
|
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|
2191 buf[0] = '\0'; |
|
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|
2192 return; |
|
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|
2193 } |
| 0 | 2194 |
|
2302
da091bb67459
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|
2195 if (Arguments::created_by_gamma_launcher()) { |
| 0 | 2196 // Support for the gamma launcher. Typical value for buf is |
| 2197 // "<JAVA_HOME>/jre/lib/<arch>/<vmtype>/libjvm.so". If "/jre/lib/" appears at | |
| 2198 // the right place in the string, then assume we are installed in a JDK and | |
| 2199 // we're done. Otherwise, check for a JAVA_HOME environment variable and fix | |
| 2200 // up the path so it looks like libjvm.so is installed there (append a | |
| 2201 // fake suffix hotspot/libjvm.so). | |
| 2202 const char *p = buf + strlen(buf) - 1; | |
| 2203 for (int count = 0; p > buf && count < 5; ++count) { | |
| 2204 for (--p; p > buf && *p != '/'; --p) | |
| 2205 /* empty */ ; | |
| 2206 } | |
| 2207 | |
| 2208 if (strncmp(p, "/jre/lib/", 9) != 0) { | |
| 2209 // Look for JAVA_HOME in the environment. | |
| 2210 char* java_home_var = ::getenv("JAVA_HOME"); | |
| 2211 if (java_home_var != NULL && java_home_var[0] != 0) { | |
| 2212 char cpu_arch[12]; | |
| 1642 | 2213 char* jrelib_p; |
| 2214 int len; | |
| 0 | 2215 sysinfo(SI_ARCHITECTURE, cpu_arch, sizeof(cpu_arch)); |
| 2216 #ifdef _LP64 | |
| 2217 // If we are on sparc running a 64-bit vm, look in jre/lib/sparcv9. | |
| 2218 if (strcmp(cpu_arch, "sparc") == 0) { | |
| 2219 strcat(cpu_arch, "v9"); | |
| 2220 } else if (strcmp(cpu_arch, "i386") == 0) { | |
| 2221 strcpy(cpu_arch, "amd64"); | |
| 2222 } | |
| 2223 #endif | |
|
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|
2224 // Check the current module name "libjvm.so". |
| 0 | 2225 p = strrchr(buf, '/'); |
| 2226 assert(strstr(p, "/libjvm") == p, "invalid library name"); | |
| 2227 | |
| 2228 realpath(java_home_var, buf); | |
| 1642 | 2229 // determine if this is a legacy image or modules image |
| 2230 // modules image doesn't have "jre" subdirectory | |
| 2231 len = strlen(buf); | |
| 17567 | 2232 assert(len < buflen, "Ran out of buffer space"); |
| 1642 | 2233 jrelib_p = buf + len; |
| 2234 snprintf(jrelib_p, buflen-len, "/jre/lib/%s", cpu_arch); | |
| 2235 if (0 != access(buf, F_OK)) { | |
| 2236 snprintf(jrelib_p, buflen-len, "/lib/%s", cpu_arch); | |
| 2237 } | |
| 2238 | |
| 0 | 2239 if (0 == access(buf, F_OK)) { |
|
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2240 // Use current module name "libjvm.so" |
| 1642 | 2241 len = strlen(buf); |
|
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2242 snprintf(buf + len, buflen-len, "/hotspot/libjvm.so"); |
| 0 | 2243 } else { |
| 2244 // Go back to path of .so | |
| 2245 realpath((char *)dlinfo.dli_fname, buf); | |
| 2246 } | |
| 2247 } | |
| 2248 } | |
| 2249 } | |
| 2250 | |
| 17567 | 2251 strncpy(saved_jvm_path, buf, MAXPATHLEN); |
| 0 | 2252 } |
| 2253 | |
| 2254 | |
| 2255 void os::print_jni_name_prefix_on(outputStream* st, int args_size) { | |
| 2256 // no prefix required, not even "_" | |
| 2257 } | |
| 2258 | |
| 2259 | |
| 2260 void os::print_jni_name_suffix_on(outputStream* st, int args_size) { | |
| 2261 // no suffix required | |
| 2262 } | |
| 2263 | |
|
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2264 // This method is a copy of JDK's sysGetLastErrorString |
|
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2265 // from src/solaris/hpi/src/system_md.c |
|
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2266 |
|
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2267 size_t os::lasterror(char *buf, size_t len) { |
|
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2268 |
|
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|
2269 if (errno == 0) return 0; |
|
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2270 |
|
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|
2271 const char *s = ::strerror(errno); |
|
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|
2272 size_t n = ::strlen(s); |
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|
2273 if (n >= len) { |
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|
2274 n = len - 1; |
|
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|
2275 } |
|
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|
2276 ::strncpy(buf, s, n); |
|
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|
2277 buf[n] = '\0'; |
|
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|
2278 return n; |
|
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|
2279 } |
|
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|
2280 |
| 0 | 2281 |
| 2282 // sun.misc.Signal | |
| 2283 | |
| 2284 extern "C" { | |
| 2285 static void UserHandler(int sig, void *siginfo, void *context) { | |
| 2286 // Ctrl-C is pressed during error reporting, likely because the error | |
| 2287 // handler fails to abort. Let VM die immediately. | |
| 2288 if (sig == SIGINT && is_error_reported()) { | |
| 2289 os::die(); | |
| 2290 } | |
| 2291 | |
| 2292 os::signal_notify(sig); | |
| 2293 // We do not need to reinstate the signal handler each time... | |
| 2294 } | |
| 2295 } | |
| 2296 | |
| 2297 void* os::user_handler() { | |
| 2298 return CAST_FROM_FN_PTR(void*, UserHandler); | |
| 2299 } | |
| 2300 | |
| 10405 | 2301 class Semaphore : public StackObj { |
| 2302 public: | |
| 2303 Semaphore(); | |
| 2304 ~Semaphore(); | |
| 2305 void signal(); | |
| 2306 void wait(); | |
| 2307 bool trywait(); | |
| 2308 bool timedwait(unsigned int sec, int nsec); | |
| 2309 private: | |
| 2310 sema_t _semaphore; | |
| 2311 }; | |
| 2312 | |
| 2313 | |
| 2314 Semaphore::Semaphore() { | |
| 2315 sema_init(&_semaphore, 0, NULL, NULL); | |
| 2316 } | |
| 2317 | |
| 2318 Semaphore::~Semaphore() { | |
| 2319 sema_destroy(&_semaphore); | |
| 2320 } | |
| 2321 | |
| 2322 void Semaphore::signal() { | |
| 2323 sema_post(&_semaphore); | |
| 2324 } | |
| 2325 | |
| 2326 void Semaphore::wait() { | |
| 2327 sema_wait(&_semaphore); | |
| 2328 } | |
| 2329 | |
| 2330 bool Semaphore::trywait() { | |
| 2331 return sema_trywait(&_semaphore) == 0; | |
| 2332 } | |
| 2333 | |
| 2334 bool Semaphore::timedwait(unsigned int sec, int nsec) { | |
| 2335 struct timespec ts; | |
| 2336 unpackTime(&ts, false, (sec * NANOSECS_PER_SEC) + nsec); | |
| 2337 | |
| 2338 while (1) { | |
| 2339 int result = sema_timedwait(&_semaphore, &ts); | |
| 2340 if (result == 0) { | |
| 2341 return true; | |
| 2342 } else if (errno == EINTR) { | |
| 2343 continue; | |
| 2344 } else if (errno == ETIME) { | |
| 2345 return false; | |
| 2346 } else { | |
| 2347 return false; | |
| 2348 } | |
| 2349 } | |
| 2350 } | |
| 2351 | |
| 0 | 2352 extern "C" { |
| 2353 typedef void (*sa_handler_t)(int); | |
| 2354 typedef void (*sa_sigaction_t)(int, siginfo_t *, void *); | |
| 2355 } | |
| 2356 | |
| 2357 void* os::signal(int signal_number, void* handler) { | |
| 2358 struct sigaction sigAct, oldSigAct; | |
| 2359 sigfillset(&(sigAct.sa_mask)); | |
| 2360 sigAct.sa_flags = SA_RESTART & ~SA_RESETHAND; | |
| 2361 sigAct.sa_handler = CAST_TO_FN_PTR(sa_handler_t, handler); | |
| 2362 | |
| 2363 if (sigaction(signal_number, &sigAct, &oldSigAct)) | |
| 2364 // -1 means registration failed | |
| 2365 return (void *)-1; | |
| 2366 | |
| 2367 return CAST_FROM_FN_PTR(void*, oldSigAct.sa_handler); | |
| 2368 } | |
| 2369 | |
| 2370 void os::signal_raise(int signal_number) { | |
| 2371 raise(signal_number); | |
| 2372 } | |
| 2373 | |
| 2374 /* | |
| 2375 * The following code is moved from os.cpp for making this | |
| 2376 * code platform specific, which it is by its very nature. | |
| 2377 */ | |
| 2378 | |
| 2379 // a counter for each possible signal value | |
| 2380 static int Sigexit = 0; | |
| 2381 static int Maxlibjsigsigs; | |
| 2382 static jint *pending_signals = NULL; | |
| 2383 static int *preinstalled_sigs = NULL; | |
| 2384 static struct sigaction *chainedsigactions = NULL; | |
| 2385 static sema_t sig_sem; | |
| 2386 typedef int (*version_getting_t)(); | |
| 2387 version_getting_t os::Solaris::get_libjsig_version = NULL; | |
| 2388 static int libjsigversion = NULL; | |
| 2389 | |
| 2390 int os::sigexitnum_pd() { | |
| 2391 assert(Sigexit > 0, "signal memory not yet initialized"); | |
| 2392 return Sigexit; | |
| 2393 } | |
| 2394 | |
| 2395 void os::Solaris::init_signal_mem() { | |
| 2396 // Initialize signal structures | |
| 2397 Maxsignum = SIGRTMAX; | |
| 2398 Sigexit = Maxsignum+1; | |
| 2399 assert(Maxsignum >0, "Unable to obtain max signal number"); | |
| 2400 | |
| 2401 Maxlibjsigsigs = Maxsignum; | |
| 2402 | |
| 2403 // pending_signals has one int per signal | |
| 2404 // The additional signal is for SIGEXIT - exit signal to signal_thread | |
| 6197 | 2405 pending_signals = (jint *)os::malloc(sizeof(jint) * (Sigexit+1), mtInternal); |
| 0 | 2406 memset(pending_signals, 0, (sizeof(jint) * (Sigexit+1))); |
| 2407 | |
| 2408 if (UseSignalChaining) { | |
| 2409 chainedsigactions = (struct sigaction *)malloc(sizeof(struct sigaction) | |
| 6197 | 2410 * (Maxsignum + 1), mtInternal); |
| 0 | 2411 memset(chainedsigactions, 0, (sizeof(struct sigaction) * (Maxsignum + 1))); |
| 6197 | 2412 preinstalled_sigs = (int *)os::malloc(sizeof(int) * (Maxsignum + 1), mtInternal); |
| 0 | 2413 memset(preinstalled_sigs, 0, (sizeof(int) * (Maxsignum + 1))); |
| 2414 } | |
| 6197 | 2415 ourSigFlags = (int*)malloc(sizeof(int) * (Maxsignum + 1 ), mtInternal); |
| 0 | 2416 memset(ourSigFlags, 0, sizeof(int) * (Maxsignum + 1)); |
| 2417 } | |
| 2418 | |
| 2419 void os::signal_init_pd() { | |
| 2420 int ret; | |
| 2421 | |
| 2422 ret = ::sema_init(&sig_sem, 0, NULL, NULL); | |
| 2423 assert(ret == 0, "sema_init() failed"); | |
| 2424 } | |
| 2425 | |
| 2426 void os::signal_notify(int signal_number) { | |
| 2427 int ret; | |
| 2428 | |
| 2429 Atomic::inc(&pending_signals[signal_number]); | |
| 2430 ret = ::sema_post(&sig_sem); | |
| 2431 assert(ret == 0, "sema_post() failed"); | |
| 2432 } | |
| 2433 | |
| 2434 static int check_pending_signals(bool wait_for_signal) { | |
| 2435 int ret; | |
| 2436 while (true) { | |
| 2437 for (int i = 0; i < Sigexit + 1; i++) { | |
| 2438 jint n = pending_signals[i]; | |
| 2439 if (n > 0 && n == Atomic::cmpxchg(n - 1, &pending_signals[i], n)) { | |
| 2440 return i; | |
| 2441 } | |
| 2442 } | |
| 2443 if (!wait_for_signal) { | |
| 2444 return -1; | |
| 2445 } | |
| 2446 JavaThread *thread = JavaThread::current(); | |
| 2447 ThreadBlockInVM tbivm(thread); | |
| 2448 | |
| 2449 bool threadIsSuspended; | |
| 2450 do { | |
| 2451 thread->set_suspend_equivalent(); | |
| 2452 // cleared by handle_special_suspend_equivalent_condition() or java_suspend_self() | |
| 2453 while((ret = ::sema_wait(&sig_sem)) == EINTR) | |
| 2454 ; | |
| 2455 assert(ret == 0, "sema_wait() failed"); | |
| 2456 | |
| 2457 // were we externally suspended while we were waiting? | |
| 2458 threadIsSuspended = thread->handle_special_suspend_equivalent_condition(); | |
| 2459 if (threadIsSuspended) { | |
| 2460 // | |
| 2461 // The semaphore has been incremented, but while we were waiting | |
| 2462 // another thread suspended us. We don't want to continue running | |
| 2463 // while suspended because that would surprise the thread that | |
| 2464 // suspended us. | |
| 2465 // | |
| 2466 ret = ::sema_post(&sig_sem); | |
| 2467 assert(ret == 0, "sema_post() failed"); | |
| 2468 | |
| 2469 thread->java_suspend_self(); | |
| 2470 } | |
| 2471 } while (threadIsSuspended); | |
| 2472 } | |
| 2473 } | |
| 2474 | |
| 2475 int os::signal_lookup() { | |
| 2476 return check_pending_signals(false); | |
| 2477 } | |
| 2478 | |
| 2479 int os::signal_wait() { | |
| 2480 return check_pending_signals(true); | |
| 2481 } | |
| 2482 | |
| 2483 //////////////////////////////////////////////////////////////////////////////// | |
| 2484 // Virtual Memory | |
| 2485 | |
| 2486 static int page_size = -1; | |
| 2487 | |
| 2488 // The mmap MAP_ALIGN flag is supported on Solaris 9 and later. init_2() will | |
| 2489 // clear this var if support is not available. | |
| 2490 static bool has_map_align = true; | |
| 2491 | |
| 2492 int os::vm_page_size() { | |
| 2493 assert(page_size != -1, "must call os::init"); | |
| 2494 return page_size; | |
| 2495 } | |
| 2496 | |
| 2497 // Solaris allocates memory by pages. | |
| 2498 int os::vm_allocation_granularity() { | |
| 2499 assert(page_size != -1, "must call os::init"); | |
| 2500 return page_size; | |
| 2501 } | |
| 2502 | |
|
10969
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|
2503 static bool recoverable_mmap_error(int err) { |
|
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|
2504 // See if the error is one we can let the caller handle. This |
|
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|
2505 // list of errno values comes from the Solaris mmap(2) man page. |
|
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|
2506 switch (err) { |
|
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|
2507 case EBADF: |
|
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|
2508 case EINVAL: |
|
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|
2509 case ENOTSUP: |
|
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|
2510 // let the caller deal with these errors |
|
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|
2511 return true; |
|
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|
2512 |
|
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|
2513 default: |
|
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|
2514 // Any remaining errors on this OS can cause our reserved mapping |
|
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|
2515 // to be lost. That can cause confusion where different data |
|
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|
2516 // structures think they have the same memory mapped. The worst |
|
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|
2517 // scenario is if both the VM and a library think they have the |
|
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|
2518 // same memory mapped. |
|
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|
2519 return false; |
|
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|
2520 } |
|
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|
2521 } |
|
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|
2522 |
|
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|
2523 static void warn_fail_commit_memory(char* addr, size_t bytes, bool exec, |
|
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|
2524 int err) { |
|
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|
2525 warning("INFO: os::commit_memory(" PTR_FORMAT ", " SIZE_FORMAT |
|
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|
2526 ", %d) failed; error='%s' (errno=%d)", addr, bytes, exec, |
|
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|
2527 strerror(err), err); |
|
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|
2528 } |
|
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|
2529 |
|
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|
2530 static void warn_fail_commit_memory(char* addr, size_t bytes, |
|
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|
2531 size_t alignment_hint, bool exec, |
|
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|
2532 int err) { |
|
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|
2533 warning("INFO: os::commit_memory(" PTR_FORMAT ", " SIZE_FORMAT |
|
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|
2534 ", " SIZE_FORMAT ", %d) failed; error='%s' (errno=%d)", addr, bytes, |
|
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|
2535 alignment_hint, exec, strerror(err), err); |
|
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|
2536 } |
|
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|
2537 |
|
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|
2538 int os::Solaris::commit_memory_impl(char* addr, size_t bytes, bool exec) { |
| 656 | 2539 int prot = exec ? PROT_READ|PROT_WRITE|PROT_EXEC : PROT_READ|PROT_WRITE; |
| 0 | 2540 size_t size = bytes; |
| 3885 | 2541 char *res = Solaris::mmap_chunk(addr, size, MAP_PRIVATE|MAP_FIXED, prot); |
| 2542 if (res != NULL) { | |
| 2543 if (UseNUMAInterleaving) { | |
| 2544 numa_make_global(addr, bytes); | |
| 2545 } | |
|
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|
2546 return 0; |
|
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|
2547 } |
|
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|
2548 |
|
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|
2549 int err = errno; // save errno from mmap() call in mmap_chunk() |
|
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|
2550 |
|
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|
2551 if (!recoverable_mmap_error(err)) { |
|
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|
2552 warn_fail_commit_memory(addr, bytes, exec, err); |
|
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|
2553 vm_exit_out_of_memory(bytes, OOM_MMAP_ERROR, "committing reserved memory."); |
|
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|
2554 } |
|
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|
2555 |
|
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changeset
|
2556 return err; |
|
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|
2557 } |
|
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|
2558 |
|
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changeset
|
2559 bool os::pd_commit_memory(char* addr, size_t bytes, bool exec) { |
|
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|
2560 return Solaris::commit_memory_impl(addr, bytes, exec) == 0; |
|
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|
2561 } |
|
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|
2562 |
|
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changeset
|
2563 void os::pd_commit_memory_or_exit(char* addr, size_t bytes, bool exec, |
|
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|
2564 const char* mesg) { |
|
a837fa3d3f86
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|
2565 assert(mesg != NULL, "mesg must be specified"); |
|
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diff
changeset
|
2566 int err = os::Solaris::commit_memory_impl(addr, bytes, exec); |
|
a837fa3d3f86
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changeset
|
2567 if (err != 0) { |
|
a837fa3d3f86
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diff
changeset
|
2568 // the caller wants all commit errors to exit with the specified mesg: |
|
a837fa3d3f86
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diff
changeset
|
2569 warn_fail_commit_memory(addr, bytes, exec, err); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2570 vm_exit_out_of_memory(bytes, OOM_MMAP_ERROR, mesg); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2571 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2572 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2573 |
|
22972
41a855ff6305
8049536: os::commit_memory on Solaris uses aligment_hint as page size
ehelin
parents:
22883
diff
changeset
|
2574 size_t os::Solaris::page_size_for_alignment(size_t alignment) { |
|
41a855ff6305
8049536: os::commit_memory on Solaris uses aligment_hint as page size
ehelin
parents:
22883
diff
changeset
|
2575 assert(is_size_aligned(alignment, (size_t) vm_page_size()), |
|
41a855ff6305
8049536: os::commit_memory on Solaris uses aligment_hint as page size
ehelin
parents:
22883
diff
changeset
|
2576 err_msg(SIZE_FORMAT " is not aligned to " SIZE_FORMAT, |
|
41a855ff6305
8049536: os::commit_memory on Solaris uses aligment_hint as page size
ehelin
parents:
22883
diff
changeset
|
2577 alignment, (size_t) vm_page_size())); |
|
41a855ff6305
8049536: os::commit_memory on Solaris uses aligment_hint as page size
ehelin
parents:
22883
diff
changeset
|
2578 |
|
41a855ff6305
8049536: os::commit_memory on Solaris uses aligment_hint as page size
ehelin
parents:
22883
diff
changeset
|
2579 for (int i = 0; _page_sizes[i] != 0; i++) { |
|
41a855ff6305
8049536: os::commit_memory on Solaris uses aligment_hint as page size
ehelin
parents:
22883
diff
changeset
|
2580 if (is_size_aligned(alignment, _page_sizes[i])) { |
|
41a855ff6305
8049536: os::commit_memory on Solaris uses aligment_hint as page size
ehelin
parents:
22883
diff
changeset
|
2581 return _page_sizes[i]; |
|
41a855ff6305
8049536: os::commit_memory on Solaris uses aligment_hint as page size
ehelin
parents:
22883
diff
changeset
|
2582 } |
|
41a855ff6305
8049536: os::commit_memory on Solaris uses aligment_hint as page size
ehelin
parents:
22883
diff
changeset
|
2583 } |
|
41a855ff6305
8049536: os::commit_memory on Solaris uses aligment_hint as page size
ehelin
parents:
22883
diff
changeset
|
2584 |
|
41a855ff6305
8049536: os::commit_memory on Solaris uses aligment_hint as page size
ehelin
parents:
22883
diff
changeset
|
2585 return (size_t) vm_page_size(); |
|
41a855ff6305
8049536: os::commit_memory on Solaris uses aligment_hint as page size
ehelin
parents:
22883
diff
changeset
|
2586 } |
|
41a855ff6305
8049536: os::commit_memory on Solaris uses aligment_hint as page size
ehelin
parents:
22883
diff
changeset
|
2587 |
|
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2588 int os::Solaris::commit_memory_impl(char* addr, size_t bytes, |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2589 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
|
2590 int err = Solaris::commit_memory_impl(addr, bytes, exec); |
|
22972
41a855ff6305
8049536: os::commit_memory on Solaris uses aligment_hint as page size
ehelin
parents:
22883
diff
changeset
|
2591 if (err == 0 && UseLargePages && alignment_hint > 0) { |
|
41a855ff6305
8049536: os::commit_memory on Solaris uses aligment_hint as page size
ehelin
parents:
22883
diff
changeset
|
2592 assert(is_size_aligned(bytes, alignment_hint), |
|
41a855ff6305
8049536: os::commit_memory on Solaris uses aligment_hint as page size
ehelin
parents:
22883
diff
changeset
|
2593 err_msg(SIZE_FORMAT " is not aligned to " SIZE_FORMAT, bytes, alignment_hint)); |
|
41a855ff6305
8049536: os::commit_memory on Solaris uses aligment_hint as page size
ehelin
parents:
22883
diff
changeset
|
2594 |
|
41a855ff6305
8049536: os::commit_memory on Solaris uses aligment_hint as page size
ehelin
parents:
22883
diff
changeset
|
2595 // The syscall memcntl requires an exact page size (see man memcntl for details). |
|
41a855ff6305
8049536: os::commit_memory on Solaris uses aligment_hint as page size
ehelin
parents:
22883
diff
changeset
|
2596 size_t page_size = page_size_for_alignment(alignment_hint); |
|
41a855ff6305
8049536: os::commit_memory on Solaris uses aligment_hint as page size
ehelin
parents:
22883
diff
changeset
|
2597 if (page_size > (size_t) vm_page_size()) { |
|
11111
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
2598 (void)Solaris::setup_large_pages(addr, bytes, page_size); |
| 0 | 2599 } |
|
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2600 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2601 return err; |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2602 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2603 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2604 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
|
2605 bool exec) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2606 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
|
2607 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2608 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2609 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
|
2610 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
|
2611 const char* mesg) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2612 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
|
2613 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
|
2614 if (err != 0) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2615 // 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
|
2616 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
|
2617 vm_exit_out_of_memory(bytes, OOM_MMAP_ERROR, mesg); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2618 } |
| 0 | 2619 } |
| 2620 | |
| 2621 // Uncommit the pages in a specified region. | |
| 6197 | 2622 void os::pd_free_memory(char* addr, size_t bytes, size_t alignment_hint) { |
| 0 | 2623 if (madvise(addr, bytes, MADV_FREE) < 0) { |
| 2624 debug_only(warning("MADV_FREE failed.")); | |
| 2625 return; | |
| 2626 } | |
| 2627 } | |
| 2628 | |
| 6197 | 2629 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
|
2630 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
|
2631 } |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1123
diff
changeset
|
2632 |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1123
diff
changeset
|
2633 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
|
2634 return os::uncommit_memory(addr, size); |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1123
diff
changeset
|
2635 } |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1123
diff
changeset
|
2636 |
| 0 | 2637 // Change the page size in a given range. |
| 6197 | 2638 void os::pd_realign_memory(char *addr, size_t bytes, size_t alignment_hint) { |
| 0 | 2639 assert((intptr_t)addr % alignment_hint == 0, "Address should be aligned."); |
| 2640 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
|
2641 if (UseLargePages) { |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
2642 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
|
2643 } |
| 0 | 2644 } |
| 2645 | |
| 2646 // Tell the OS to make the range local to the first-touching LWP | |
| 141 | 2647 void os::numa_make_local(char *addr, size_t bytes, int lgrp_hint) { |
| 0 | 2648 assert((intptr_t)addr % os::vm_page_size() == 0, "Address should be page-aligned."); |
| 2649 if (madvise(addr, bytes, MADV_ACCESS_LWP) < 0) { | |
| 2650 debug_only(warning("MADV_ACCESS_LWP failed.")); | |
| 2651 } | |
| 2652 } | |
| 2653 | |
| 2654 // Tell the OS that this range would be accessed from different LWPs. | |
| 2655 void os::numa_make_global(char *addr, size_t bytes) { | |
| 2656 assert((intptr_t)addr % os::vm_page_size() == 0, "Address should be page-aligned."); | |
| 2657 if (madvise(addr, bytes, MADV_ACCESS_MANY) < 0) { | |
| 2658 debug_only(warning("MADV_ACCESS_MANY failed.")); | |
| 2659 } | |
| 2660 } | |
| 2661 | |
| 2662 // Get the number of the locality groups. | |
| 2663 size_t os::numa_get_groups_num() { | |
| 2664 size_t n = Solaris::lgrp_nlgrps(Solaris::lgrp_cookie()); | |
| 2665 return n != -1 ? n : 1; | |
| 2666 } | |
| 2667 | |
| 2668 // Get a list of leaf locality groups. A leaf lgroup is group that | |
| 2669 // doesn't have any children. Typical leaf group is a CPU or a CPU/memory | |
| 2670 // board. An LWP is assigned to one of these groups upon creation. | |
| 2671 size_t os::numa_get_leaf_groups(int *ids, size_t size) { | |
| 2672 if ((ids[0] = Solaris::lgrp_root(Solaris::lgrp_cookie())) == -1) { | |
| 2673 ids[0] = 0; | |
| 2674 return 1; | |
| 2675 } | |
| 2676 int result_size = 0, top = 1, bottom = 0, cur = 0; | |
| 2677 for (int k = 0; k < size; k++) { | |
| 2678 int r = Solaris::lgrp_children(Solaris::lgrp_cookie(), ids[cur], | |
| 2679 (Solaris::lgrp_id_t*)&ids[top], size - top); | |
| 2680 if (r == -1) { | |
| 2681 ids[0] = 0; | |
| 2682 return 1; | |
| 2683 } | |
| 2684 if (!r) { | |
|
144
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
2685 // That's a leaf node. |
| 0 | 2686 assert (bottom <= cur, "Sanity check"); |
|
144
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
2687 // Check if the node has memory |
|
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
2688 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
|
2689 NULL, 0, LGRP_RSRC_MEM) > 0) { |
|
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
2690 ids[bottom++] = ids[cur]; |
|
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
2691 } |
| 0 | 2692 } |
| 2693 top += r; | |
| 2694 cur++; | |
| 2695 } | |
|
268
d6340ab4105b
6723228: NUMA allocator: assert(lgrp_id != -1, "No lgrp_id set")
iveresov
parents:
267
diff
changeset
|
2696 if (bottom == 0) { |
|
d6340ab4105b
6723228: NUMA allocator: assert(lgrp_id != -1, "No lgrp_id set")
iveresov
parents:
267
diff
changeset
|
2697 // Handle a situation, when the OS reports no memory available. |
|
d6340ab4105b
6723228: NUMA allocator: assert(lgrp_id != -1, "No lgrp_id set")
iveresov
parents:
267
diff
changeset
|
2698 // Assume UMA architecture. |
|
d6340ab4105b
6723228: NUMA allocator: assert(lgrp_id != -1, "No lgrp_id set")
iveresov
parents:
267
diff
changeset
|
2699 ids[0] = 0; |
|
d6340ab4105b
6723228: NUMA allocator: assert(lgrp_id != -1, "No lgrp_id set")
iveresov
parents:
267
diff
changeset
|
2700 return 1; |
|
d6340ab4105b
6723228: NUMA allocator: assert(lgrp_id != -1, "No lgrp_id set")
iveresov
parents:
267
diff
changeset
|
2701 } |
| 0 | 2702 return bottom; |
| 2703 } | |
| 2704 | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
144
diff
changeset
|
2705 // Detect the topology change. Typically happens during CPU plugging-unplugging. |
| 0 | 2706 bool os::numa_topology_changed() { |
| 2707 int is_stale = Solaris::lgrp_cookie_stale(Solaris::lgrp_cookie()); | |
| 2708 if (is_stale != -1 && is_stale) { | |
| 2709 Solaris::lgrp_fini(Solaris::lgrp_cookie()); | |
| 2710 Solaris::lgrp_cookie_t c = Solaris::lgrp_init(Solaris::LGRP_VIEW_CALLER); | |
| 2711 assert(c != 0, "Failure to initialize LGRP API"); | |
| 2712 Solaris::set_lgrp_cookie(c); | |
| 2713 return true; | |
| 2714 } | |
| 2715 return false; | |
| 2716 } | |
| 2717 | |
| 2718 // Get the group id of the current LWP. | |
| 2719 int os::numa_get_group_id() { | |
|
144
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
2720 int lgrp_id = Solaris::lgrp_home(P_LWPID, P_MYID); |
| 0 | 2721 if (lgrp_id == -1) { |
| 2722 return 0; | |
| 2723 } | |
|
144
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
2724 const int size = os::numa_get_groups_num(); |
|
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
2725 int *ids = (int*)alloca(size * sizeof(int)); |
|
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
2726 |
|
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
2727 // Get the ids of all lgroups with memory; r is the count. |
|
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
2728 int r = Solaris::lgrp_resources(Solaris::lgrp_cookie(), lgrp_id, |
|
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
2729 (Solaris::lgrp_id_t*)ids, size, LGRP_RSRC_MEM); |
|
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
2730 if (r <= 0) { |
|
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
2731 return 0; |
|
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
2732 } |
|
e3729351c946
6697534: Premature GC and invalid lgrp selection with NUMA-aware allocator.
iveresov
parents:
141
diff
changeset
|
2733 return ids[os::random() % r]; |
| 0 | 2734 } |
| 2735 | |
| 2736 // Request information about the page. | |
| 2737 bool os::get_page_info(char *start, page_info* info) { | |
| 2738 const uint_t info_types[] = { MEMINFO_VLGRP, MEMINFO_VPAGESIZE }; | |
| 2739 uint64_t addr = (uintptr_t)start; | |
| 2740 uint64_t outdata[2]; | |
| 2741 uint_t validity = 0; | |
| 2742 | |
| 2743 if (os::Solaris::meminfo(&addr, 1, info_types, 2, outdata, &validity) < 0) { | |
| 2744 return false; | |
| 2745 } | |
| 2746 | |
| 2747 info->size = 0; | |
| 2748 info->lgrp_id = -1; | |
| 2749 | |
| 2750 if ((validity & 1) != 0) { | |
| 2751 if ((validity & 2) != 0) { | |
| 2752 info->lgrp_id = outdata[0]; | |
| 2753 } | |
| 2754 if ((validity & 4) != 0) { | |
| 2755 info->size = outdata[1]; | |
| 2756 } | |
| 2757 return true; | |
| 2758 } | |
| 2759 return false; | |
| 2760 } | |
| 2761 | |
| 2762 // Scan the pages from start to end until a page different than | |
| 2763 // the one described in the info parameter is encountered. | |
| 2764 char *os::scan_pages(char *start, char* end, page_info* page_expected, page_info* page_found) { | |
| 2765 const uint_t info_types[] = { MEMINFO_VLGRP, MEMINFO_VPAGESIZE }; | |
| 2766 const size_t types = sizeof(info_types) / sizeof(info_types[0]); | |
| 17707 | 2767 uint64_t addrs[MAX_MEMINFO_CNT], outdata[types * MAX_MEMINFO_CNT + 1]; |
| 0 | 2768 uint_t validity[MAX_MEMINFO_CNT]; |
| 2769 | |
| 2770 size_t page_size = MAX2((size_t)os::vm_page_size(), page_expected->size); | |
| 2771 uint64_t p = (uint64_t)start; | |
| 2772 while (p < (uint64_t)end) { | |
| 2773 addrs[0] = p; | |
| 2774 size_t addrs_count = 1; | |
|
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|
2775 while (addrs_count < MAX_MEMINFO_CNT && addrs[addrs_count - 1] + page_size < (uint64_t)end) { |
| 0 | 2776 addrs[addrs_count] = addrs[addrs_count - 1] + page_size; |
| 2777 addrs_count++; | |
| 2778 } | |
| 2779 | |
| 2780 if (os::Solaris::meminfo(addrs, addrs_count, info_types, types, outdata, validity) < 0) { | |
| 2781 return NULL; | |
| 2782 } | |
| 2783 | |
| 2784 size_t i = 0; | |
| 2785 for (; i < addrs_count; i++) { | |
| 2786 if ((validity[i] & 1) != 0) { | |
| 2787 if ((validity[i] & 4) != 0) { | |
| 2788 if (outdata[types * i + 1] != page_expected->size) { | |
| 2789 break; | |
| 2790 } | |
| 2791 } else | |
| 2792 if (page_expected->size != 0) { | |
| 2793 break; | |
| 2794 } | |
| 2795 | |
| 2796 if ((validity[i] & 2) != 0 && page_expected->lgrp_id > 0) { | |
| 2797 if (outdata[types * i] != page_expected->lgrp_id) { | |
| 2798 break; | |
| 2799 } | |
| 2800 } | |
| 2801 } else { | |
| 2802 return NULL; | |
| 2803 } | |
| 2804 } | |
| 2805 | |
| 17707 | 2806 if (i < addrs_count) { |
| 0 | 2807 if ((validity[i] & 2) != 0) { |
| 2808 page_found->lgrp_id = outdata[types * i]; | |
| 2809 } else { | |
| 2810 page_found->lgrp_id = -1; | |
| 2811 } | |
| 2812 if ((validity[i] & 4) != 0) { | |
| 2813 page_found->size = outdata[types * i + 1]; | |
| 2814 } else { | |
| 2815 page_found->size = 0; | |
| 2816 } | |
| 2817 return (char*)addrs[i]; | |
| 2818 } | |
| 2819 | |
| 2820 p = addrs[addrs_count - 1] + page_size; | |
| 2821 } | |
| 2822 return end; | |
| 2823 } | |
| 2824 | |
| 6197 | 2825 bool os::pd_uncommit_memory(char* addr, size_t bytes) { |
| 0 | 2826 size_t size = bytes; |
| 2827 // Map uncommitted pages PROT_NONE so we fail early if we touch an | |
| 2828 // uncommitted page. Otherwise, the read/write might succeed if we | |
| 2829 // have enough swap space to back the physical page. | |
| 2830 return | |
| 2831 NULL != Solaris::mmap_chunk(addr, size, | |
| 2832 MAP_PRIVATE|MAP_FIXED|MAP_NORESERVE, | |
| 2833 PROT_NONE); | |
| 2834 } | |
| 2835 | |
| 2836 char* os::Solaris::mmap_chunk(char *addr, size_t size, int flags, int prot) { | |
| 2837 char *b = (char *)mmap(addr, size, prot, flags, os::Solaris::_dev_zero_fd, 0); | |
| 2838 | |
| 2839 if (b == MAP_FAILED) { | |
| 2840 return NULL; | |
| 2841 } | |
| 2842 return b; | |
| 2843 } | |
| 2844 | |
|
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2845 char* os::Solaris::anon_mmap(char* requested_addr, size_t bytes, size_t alignment_hint, bool fixed) { |
|
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|
2846 char* addr = requested_addr; |
|
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|
2847 int flags = MAP_PRIVATE | MAP_NORESERVE; |
|
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2848 |
|
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|
2849 assert(!(fixed && (alignment_hint > 0)), "alignment hint meaningless with fixed mmap"); |
|
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2850 |
|
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|
2851 if (fixed) { |
|
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|
2852 flags |= MAP_FIXED; |
|
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|
2853 } else if (has_map_align && (alignment_hint > (size_t) vm_page_size())) { |
| 0 | 2854 flags |= MAP_ALIGN; |
| 2855 addr = (char*) alignment_hint; | |
| 2856 } | |
| 2857 | |
| 2858 // Map uncommitted pages PROT_NONE so we fail early if we touch an | |
| 2859 // uncommitted page. Otherwise, the read/write might succeed if we | |
| 2860 // have enough swap space to back the physical page. | |
|
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|
2861 return mmap_chunk(addr, bytes, flags, PROT_NONE); |
|
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|
2862 } |
|
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|
2863 |
| 6197 | 2864 char* os::pd_reserve_memory(size_t bytes, char* requested_addr, size_t alignment_hint) { |
|
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|
2865 char* addr = Solaris::anon_mmap(requested_addr, bytes, alignment_hint, (requested_addr != NULL)); |
| 0 | 2866 |
| 2867 guarantee(requested_addr == NULL || requested_addr == addr, | |
| 2868 "OS failed to return requested mmap address."); | |
| 2869 return addr; | |
| 2870 } | |
| 2871 | |
| 2872 // Reserve memory at an arbitrary address, only if that area is | |
| 2873 // available (and not reserved for something else). | |
| 2874 | |
| 6197 | 2875 char* os::pd_attempt_reserve_memory_at(size_t bytes, char* requested_addr) { |
| 0 | 2876 const int max_tries = 10; |
| 2877 char* base[max_tries]; | |
| 2878 size_t size[max_tries]; | |
| 2879 | |
| 2880 // Solaris adds a gap between mmap'ed regions. The size of the gap | |
| 2881 // is dependent on the requested size and the MMU. Our initial gap | |
| 2882 // value here is just a guess and will be corrected later. | |
| 2883 bool had_top_overlap = false; | |
| 2884 bool have_adjusted_gap = false; | |
| 2885 size_t gap = 0x400000; | |
| 2886 | |
| 2887 // Assert only that the size is a multiple of the page size, since | |
| 2888 // that's all that mmap requires, and since that's all we really know | |
| 2889 // about at this low abstraction level. If we need higher alignment, | |
| 2890 // we can either pass an alignment to this method or verify alignment | |
| 2891 // in one of the methods further up the call chain. See bug 5044738. | |
| 2892 assert(bytes % os::vm_page_size() == 0, "reserving unexpected size block"); | |
| 2893 | |
|
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|
2894 // Since snv_84, Solaris attempts to honor the address hint - see 5003415. |
|
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|
2895 // Give it a try, if the kernel honors the hint we can return immediately. |
|
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|
2896 char* addr = Solaris::anon_mmap(requested_addr, bytes, 0, false); |
|
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|
2897 |
|
60
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|
2898 volatile int err = errno; |
|
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|
2899 if (addr == requested_addr) { |
|
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|
2900 return addr; |
|
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|
2901 } else if (addr != NULL) { |
|
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|
2902 pd_unmap_memory(addr, bytes); |
|
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|
2903 } |
|
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|
2904 |
|
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|
2905 if (PrintMiscellaneous && Verbose) { |
|
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|
2906 char buf[256]; |
|
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|
2907 buf[0] = '\0'; |
|
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|
2908 if (addr == NULL) { |
|
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|
2909 jio_snprintf(buf, sizeof(buf), ": %s", strerror(err)); |
|
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|
2910 } |
| 2080 | 2911 warning("attempt_reserve_memory_at: couldn't reserve " SIZE_FORMAT " bytes at " |
|
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|
2912 PTR_FORMAT ": reserve_memory_helper returned " PTR_FORMAT |
|
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|
2913 "%s", bytes, requested_addr, addr, buf); |
|
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|
2914 } |
|
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|
2915 |
|
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|
2916 // Address hint method didn't work. Fall back to the old method. |
|
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|
2917 // In theory, once SNV becomes our oldest supported platform, this |
|
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|
2918 // code will no longer be needed. |
|
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|
2919 // |
| 0 | 2920 // Repeatedly allocate blocks until the block is allocated at the |
| 2921 // right spot. Give up after max_tries. | |
| 2922 int i; | |
| 2923 for (i = 0; i < max_tries; ++i) { | |
| 2924 base[i] = reserve_memory(bytes); | |
| 2925 | |
| 2926 if (base[i] != NULL) { | |
| 2927 // Is this the block we wanted? | |
| 2928 if (base[i] == requested_addr) { | |
| 2929 size[i] = bytes; | |
| 2930 break; | |
| 2931 } | |
| 2932 | |
| 2933 // check that the gap value is right | |
| 2934 if (had_top_overlap && !have_adjusted_gap) { | |
| 2935 size_t actual_gap = base[i-1] - base[i] - bytes; | |
| 2936 if (gap != actual_gap) { | |
| 2937 // adjust the gap value and retry the last 2 allocations | |
| 2938 assert(i > 0, "gap adjustment code problem"); | |
| 2939 have_adjusted_gap = true; // adjust the gap only once, just in case | |
| 2940 gap = actual_gap; | |
| 2941 if (PrintMiscellaneous && Verbose) { | |
| 2942 warning("attempt_reserve_memory_at: adjusted gap to 0x%lx", gap); | |
| 2943 } | |
| 2944 unmap_memory(base[i], bytes); | |
| 2945 unmap_memory(base[i-1], size[i-1]); | |
| 2946 i-=2; | |
| 2947 continue; | |
| 2948 } | |
| 2949 } | |
| 2950 | |
| 2951 // Does this overlap the block we wanted? Give back the overlapped | |
| 2952 // parts and try again. | |
| 2953 // | |
| 2954 // There is still a bug in this code: if top_overlap == bytes, | |
| 2955 // the overlap is offset from requested region by the value of gap. | |
| 2956 // In this case giving back the overlapped part will not work, | |
| 2957 // because we'll give back the entire block at base[i] and | |
| 2958 // therefore the subsequent allocation will not generate a new gap. | |
| 2959 // This could be fixed with a new algorithm that used larger | |
| 2960 // or variable size chunks to find the requested region - | |
| 2961 // but such a change would introduce additional complications. | |
| 2962 // It's rare enough that the planets align for this bug, | |
| 2963 // so we'll just wait for a fix for 6204603/5003415 which | |
| 2964 // will provide a mmap flag to allow us to avoid this business. | |
| 2965 | |
| 2966 size_t top_overlap = requested_addr + (bytes + gap) - base[i]; | |
| 2967 if (top_overlap >= 0 && top_overlap < bytes) { | |
| 2968 had_top_overlap = true; | |
| 2969 unmap_memory(base[i], top_overlap); | |
| 2970 base[i] += top_overlap; | |
| 2971 size[i] = bytes - top_overlap; | |
| 2972 } else { | |
| 2973 size_t bottom_overlap = base[i] + bytes - requested_addr; | |
| 2974 if (bottom_overlap >= 0 && bottom_overlap < bytes) { | |
| 2975 if (PrintMiscellaneous && Verbose && bottom_overlap == 0) { | |
| 2976 warning("attempt_reserve_memory_at: possible alignment bug"); | |
| 2977 } | |
| 2978 unmap_memory(requested_addr, bottom_overlap); | |
| 2979 size[i] = bytes - bottom_overlap; | |
| 2980 } else { | |
| 2981 size[i] = bytes; | |
| 2982 } | |
| 2983 } | |
| 2984 } | |
| 2985 } | |
| 2986 | |
| 2987 // Give back the unused reserved pieces. | |
| 2988 | |
| 2989 for (int j = 0; j < i; ++j) { | |
| 2990 if (base[j] != NULL) { | |
| 2991 unmap_memory(base[j], size[j]); | |
| 2992 } | |
| 2993 } | |
| 2994 | |
| 2995 return (i < max_tries) ? requested_addr : NULL; | |
| 2996 } | |
| 2997 | |
| 6197 | 2998 bool os::pd_release_memory(char* addr, size_t bytes) { |
| 0 | 2999 size_t size = bytes; |
| 3000 return munmap(addr, size) == 0; | |
| 3001 } | |
| 3002 | |
| 3003 static bool solaris_mprotect(char* addr, size_t bytes, int prot) { | |
| 3004 assert(addr == (char*)align_size_down((uintptr_t)addr, os::vm_page_size()), | |
| 3005 "addr must be page aligned"); | |
| 3006 int retVal = mprotect(addr, bytes, prot); | |
| 3007 return retVal == 0; | |
| 3008 } | |
| 3009 | |
|
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3010 // Protect memory (Used to pass readonly pages through |
| 0 | 3011 // JNI GetArray<type>Elements with empty arrays.) |
|
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3012 // Also, used for serialization page and for compressed oops null pointer |
|
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3013 // checking. |
|
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3014 bool os::protect_memory(char* addr, size_t bytes, ProtType prot, |
|
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3015 bool is_committed) { |
|
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|
3016 unsigned int p = 0; |
|
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|
3017 switch (prot) { |
|
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|
3018 case MEM_PROT_NONE: p = PROT_NONE; break; |
|
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3019 case MEM_PROT_READ: p = PROT_READ; break; |
|
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3020 case MEM_PROT_RW: p = PROT_READ|PROT_WRITE; break; |
|
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|
3021 case MEM_PROT_RWX: p = PROT_READ|PROT_WRITE|PROT_EXEC; break; |
|
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|
3022 default: |
|
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|
3023 ShouldNotReachHere(); |
|
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|
3024 } |
|
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|
3025 // is_committed is unused. |
|
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|
3026 return solaris_mprotect(addr, bytes, p); |
| 0 | 3027 } |
| 3028 | |
| 3029 // guard_memory and unguard_memory only happens within stack guard pages. | |
| 3030 // Since ISM pertains only to the heap, guard and unguard memory should not | |
| 3031 /// happen with an ISM region. | |
| 3032 bool os::guard_memory(char* addr, size_t bytes) { | |
| 3033 return solaris_mprotect(addr, bytes, PROT_NONE); | |
| 3034 } | |
| 3035 | |
| 3036 bool os::unguard_memory(char* addr, size_t bytes) { | |
|
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|
3037 return solaris_mprotect(addr, bytes, PROT_READ|PROT_WRITE); |
| 0 | 3038 } |
| 3039 | |
| 3040 // Large page support | |
| 3041 static size_t _large_page_size = 0; | |
| 3042 | |
| 3043 // Insertion sort for small arrays (descending order). | |
| 3044 static void insertion_sort_descending(size_t* array, int len) { | |
| 3045 for (int i = 0; i < len; i++) { | |
| 3046 size_t val = array[i]; | |
| 3047 for (size_t key = i; key > 0 && array[key - 1] < val; --key) { | |
| 3048 size_t tmp = array[key]; | |
| 3049 array[key] = array[key - 1]; | |
| 3050 array[key - 1] = tmp; | |
| 3051 } | |
| 3052 } | |
| 3053 } | |
| 3054 | |
|
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changeset
|
3055 bool os::Solaris::mpss_sanity_check(bool warn, size_t* page_size) { |
| 0 | 3056 const unsigned int usable_count = VM_Version::page_size_count(); |
| 3057 if (usable_count == 1) { | |
| 3058 return false; | |
| 3059 } | |
| 3060 | |
| 3859 | 3061 // Find the right getpagesizes interface. When solaris 11 is the minimum |
| 3062 // build platform, getpagesizes() (without the '2') can be called directly. | |
| 3063 typedef int (*gps_t)(size_t[], int); | |
| 3064 gps_t gps_func = CAST_TO_FN_PTR(gps_t, dlsym(RTLD_DEFAULT, "getpagesizes2")); | |
| 3065 if (gps_func == NULL) { | |
| 3066 gps_func = CAST_TO_FN_PTR(gps_t, dlsym(RTLD_DEFAULT, "getpagesizes")); | |
| 3067 if (gps_func == NULL) { | |
| 3068 if (warn) { | |
| 3069 warning("MPSS is not supported by the operating system."); | |
| 3070 } | |
| 3071 return false; | |
| 3072 } | |
| 3073 } | |
| 3074 | |
| 0 | 3075 // Fill the array of page sizes. |
| 3859 | 3076 int n = (*gps_func)(_page_sizes, page_sizes_max); |
| 0 | 3077 assert(n > 0, "Solaris bug?"); |
| 3859 | 3078 |
| 0 | 3079 if (n == page_sizes_max) { |
| 3080 // Add a sentinel value (necessary only if the array was completely filled | |
| 3081 // since it is static (zeroed at initialization)). | |
| 3082 _page_sizes[--n] = 0; | |
| 3083 DEBUG_ONLY(warning("increase the size of the os::_page_sizes array.");) | |
| 3084 } | |
| 3085 assert(_page_sizes[n] == 0, "missing sentinel"); | |
| 3859 | 3086 trace_page_sizes("available page sizes", _page_sizes, n); |
| 0 | 3087 |
| 3088 if (n == 1) return false; // Only one page size available. | |
| 3089 | |
| 3090 // Skip sizes larger than 4M (or LargePageSizeInBytes if it was set) and | |
| 3091 // select up to usable_count elements. First sort the array, find the first | |
| 3092 // acceptable value, then copy the usable sizes to the top of the array and | |
| 3093 // trim the rest. Make sure to include the default page size :-). | |
| 3094 // | |
| 3095 // A better policy could get rid of the 4M limit by taking the sizes of the | |
| 3096 // important VM memory regions (java heap and possibly the code cache) into | |
| 3097 // account. | |
| 3098 insertion_sort_descending(_page_sizes, n); | |
| 3099 const size_t size_limit = | |
| 3100 FLAG_IS_DEFAULT(LargePageSizeInBytes) ? 4 * M : LargePageSizeInBytes; | |
| 3101 int beg; | |
| 3102 for (beg = 0; beg < n && _page_sizes[beg] > size_limit; ++beg) /* empty */ ; | |
| 3103 const int end = MIN2((int)usable_count, n) - 1; | |
| 3104 for (int cur = 0; cur < end; ++cur, ++beg) { | |
| 3105 _page_sizes[cur] = _page_sizes[beg]; | |
| 3106 } | |
| 3107 _page_sizes[end] = vm_page_size(); | |
| 3108 _page_sizes[end + 1] = 0; | |
| 3109 | |
| 3110 if (_page_sizes[end] > _page_sizes[end - 1]) { | |
| 3111 // Default page size is not the smallest; sort again. | |
| 3112 insertion_sort_descending(_page_sizes, end + 1); | |
| 3113 } | |
| 3114 *page_size = _page_sizes[0]; | |
| 3115 | |
| 3859 | 3116 trace_page_sizes("usable page sizes", _page_sizes, end + 1); |
| 0 | 3117 return true; |
| 3118 } | |
| 3119 | |
|
3318
188c9a5d6a6d
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3292
diff
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|
3120 void os::large_page_init() { |
|
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|
3121 if (UseLargePages) { |
|
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diff
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|
3122 // print a warning if any large page related flag is specified on command line |
|
dec841e0c9aa
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|
3123 bool warn_on_failure = !FLAG_IS_DEFAULT(UseLargePages) || |
|
dec841e0c9aa
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|
3124 !FLAG_IS_DEFAULT(LargePageSizeInBytes); |
|
dec841e0c9aa
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diff
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|
3125 |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
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diff
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|
3126 UseLargePages = Solaris::mpss_sanity_check(warn_on_failure, &_large_page_size); |
|
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diff
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|
3127 } |
|
dec841e0c9aa
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diff
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|
3128 } |
|
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diff
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|
3129 |
|
22972
41a855ff6305
8049536: os::commit_memory on Solaris uses aligment_hint as page size
ehelin
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diff
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|
3130 bool os::Solaris::is_valid_page_size(size_t bytes) { |
|
41a855ff6305
8049536: os::commit_memory on Solaris uses aligment_hint as page size
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diff
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|
3131 for (int i = 0; _page_sizes[i] != 0; i++) { |
|
41a855ff6305
8049536: os::commit_memory on Solaris uses aligment_hint as page size
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22883
diff
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|
3132 if (_page_sizes[i] == bytes) { |
|
41a855ff6305
8049536: os::commit_memory on Solaris uses aligment_hint as page size
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22883
diff
changeset
|
3133 return true; |
|
41a855ff6305
8049536: os::commit_memory on Solaris uses aligment_hint as page size
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parents:
22883
diff
changeset
|
3134 } |
|
41a855ff6305
8049536: os::commit_memory on Solaris uses aligment_hint as page size
ehelin
parents:
22883
diff
changeset
|
3135 } |
|
41a855ff6305
8049536: os::commit_memory on Solaris uses aligment_hint as page size
ehelin
parents:
22883
diff
changeset
|
3136 return false; |
|
41a855ff6305
8049536: os::commit_memory on Solaris uses aligment_hint as page size
ehelin
parents:
22883
diff
changeset
|
3137 } |
|
41a855ff6305
8049536: os::commit_memory on Solaris uses aligment_hint as page size
ehelin
parents:
22883
diff
changeset
|
3138 |
|
11111
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8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
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diff
changeset
|
3139 bool os::Solaris::setup_large_pages(caddr_t start, size_t bytes, size_t align) { |
|
22972
41a855ff6305
8049536: os::commit_memory on Solaris uses aligment_hint as page size
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22883
diff
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|
3140 assert(is_valid_page_size(align), err_msg(SIZE_FORMAT " is not a valid page size", align)); |
|
41a855ff6305
8049536: os::commit_memory on Solaris uses aligment_hint as page size
ehelin
parents:
22883
diff
changeset
|
3141 assert(is_ptr_aligned((void*) start, align), |
|
41a855ff6305
8049536: os::commit_memory on Solaris uses aligment_hint as page size
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parents:
22883
diff
changeset
|
3142 err_msg(PTR_FORMAT " is not aligned to " SIZE_FORMAT, p2i((void*) start), align)); |
|
41a855ff6305
8049536: os::commit_memory on Solaris uses aligment_hint as page size
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22883
diff
changeset
|
3143 assert(is_size_aligned(bytes, align), |
|
41a855ff6305
8049536: os::commit_memory on Solaris uses aligment_hint as page size
ehelin
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22883
diff
changeset
|
3144 err_msg(SIZE_FORMAT " is not aligned to " SIZE_FORMAT, bytes, align)); |
|
41a855ff6305
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ehelin
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22883
diff
changeset
|
3145 |
| 0 | 3146 // Signal to OS that we want large pages for addresses |
| 3147 // from addr, addr + bytes | |
| 3148 struct memcntl_mha mpss_struct; | |
| 3149 mpss_struct.mha_cmd = MHA_MAPSIZE_VA; | |
| 3150 mpss_struct.mha_pagesize = align; | |
| 3151 mpss_struct.mha_flags = 0; | |
|
11111
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
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10986
diff
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|
3152 // Upon successful completion, memcntl() returns 0 |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3153 if (memcntl(start, bytes, MC_HAT_ADVISE, (caddr_t) &mpss_struct, 0, 0)) { |
| 0 | 3154 debug_only(warning("Attempt to use MPSS failed.")); |
| 3155 return false; | |
| 3156 } | |
| 3157 return true; | |
| 3158 } | |
| 3159 | |
|
12110
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
11112
diff
changeset
|
3160 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
|
3161 fatal("os::reserve_memory_special should not be called on Solaris."); |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3162 return NULL; |
| 0 | 3163 } |
| 3164 | |
| 3165 bool os::release_memory_special(char* base, size_t bytes) { | |
|
11111
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
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parents:
10986
diff
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|
3166 fatal("os::release_memory_special should not be called on Solaris."); |
|
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3167 return false; |
| 0 | 3168 } |
| 3169 | |
| 3170 size_t os::large_page_size() { | |
| 3171 return _large_page_size; | |
| 3172 } | |
| 3173 | |
| 3174 // MPSS allows application to commit large page memory on demand; with ISM | |
| 3175 // the entire memory region must be allocated as shared memory. | |
| 3176 bool os::can_commit_large_page_memory() { | |
|
11111
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3177 return true; |
| 0 | 3178 } |
| 3179 | |
|
79
82db0859acbe
6642862: Code cache allocation fails with large pages after 6588638
jcoomes
parents:
61
diff
changeset
|
3180 bool os::can_execute_large_page_memory() { |
|
11111
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3181 return true; |
|
79
82db0859acbe
6642862: Code cache allocation fails with large pages after 6588638
jcoomes
parents:
61
diff
changeset
|
3182 } |
|
82db0859acbe
6642862: Code cache allocation fails with large pages after 6588638
jcoomes
parents:
61
diff
changeset
|
3183 |
| 0 | 3184 static int os_sleep(jlong millis, bool interruptible) { |
| 3185 const jlong limit = INT_MAX; | |
| 3186 jlong prevtime; | |
| 3187 int res; | |
| 3188 | |
| 3189 while (millis > limit) { | |
| 3190 if ((res = os_sleep(limit, interruptible)) != OS_OK) | |
| 3191 return res; | |
| 3192 millis -= limit; | |
| 3193 } | |
| 3194 | |
| 3195 // Restart interrupted polls with new parameters until the proper delay | |
| 3196 // has been completed. | |
| 3197 | |
| 3198 prevtime = getTimeMillis(); | |
| 3199 | |
| 3200 while (millis > 0) { | |
| 3201 jlong newtime; | |
| 3202 | |
| 3203 if (!interruptible) { | |
| 3204 // Following assert fails for os::yield_all: | |
| 3205 // assert(!thread->is_Java_thread(), "must not be java thread"); | |
| 3206 res = poll(NULL, 0, millis); | |
| 3207 } else { | |
| 3208 JavaThread *jt = JavaThread::current(); | |
| 3209 | |
| 3210 INTERRUPTIBLE_NORESTART_VM_ALWAYS(poll(NULL, 0, millis), res, jt, | |
| 3211 os::Solaris::clear_interrupted); | |
| 3212 } | |
| 3213 | |
| 3214 // INTERRUPTIBLE_NORESTART_VM_ALWAYS returns res == OS_INTRPT for | |
| 3215 // thread.Interrupt. | |
| 3216 | |
| 1967 | 3217 // See c/r 6751923. Poll can return 0 before time |
| 3218 // has elapsed if time is set via clock_settime (as NTP does). | |
| 3219 // res == 0 if poll timed out (see man poll RETURN VALUES) | |
| 3220 // using the logic below checks that we really did | |
| 3221 // sleep at least "millis" if not we'll sleep again. | |
| 3222 if( ( res == 0 ) || ((res == OS_ERR) && (errno == EINTR))) { | |
| 0 | 3223 newtime = getTimeMillis(); |
| 3224 assert(newtime >= prevtime, "time moving backwards"); | |
| 3225 /* Doing prevtime and newtime in microseconds doesn't help precision, | |
| 3226 and trying to round up to avoid lost milliseconds can result in a | |
| 3227 too-short delay. */ | |
| 3228 millis -= newtime - prevtime; | |
| 3229 if(millis <= 0) | |
| 3230 return OS_OK; | |
| 3231 prevtime = newtime; | |
| 3232 } else | |
| 3233 return res; | |
| 3234 } | |
| 3235 | |
| 3236 return OS_OK; | |
| 3237 } | |
| 3238 | |
| 3239 // Read calls from inside the vm need to perform state transitions | |
| 3240 size_t os::read(int fd, void *buf, unsigned int nBytes) { | |
| 3241 INTERRUPTIBLE_RETURN_INT_VM(::read(fd, buf, nBytes), os::Solaris::clear_interrupted); | |
| 3242 } | |
| 3243 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3244 size_t os::restartable_read(int fd, void *buf, unsigned int nBytes) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3245 INTERRUPTIBLE_RETURN_INT(::read(fd, buf, nBytes), os::Solaris::clear_interrupted); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3246 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3247 |
| 0 | 3248 int os::sleep(Thread* thread, jlong millis, bool interruptible) { |
| 3249 assert(thread == Thread::current(), "thread consistency check"); | |
| 3250 | |
| 3251 // TODO-FIXME: this should be removed. | |
| 3252 // On Solaris machines (especially 2.5.1) we found that sometimes the VM gets into a live lock | |
| 3253 // situation with a JavaThread being starved out of a lwp. The kernel doesn't seem to generate | |
| 3254 // a SIGWAITING signal which would enable the threads library to create a new lwp for the starving | |
| 3255 // thread. We suspect that because the Watcher thread keeps waking up at periodic intervals the kernel | |
| 3256 // is fooled into believing that the system is making progress. In the code below we block the | |
| 3257 // the watcher thread while safepoint is in progress so that it would not appear as though the | |
| 3258 // system is making progress. | |
| 3259 if (!Solaris::T2_libthread() && | |
| 3260 thread->is_Watcher_thread() && SafepointSynchronize::is_synchronizing() && !Arguments::has_profile()) { | |
| 3261 // We now try to acquire the threads lock. Since this lock is held by the VM thread during | |
| 3262 // the entire safepoint, the watcher thread will line up here during the safepoint. | |
| 3263 Threads_lock->lock_without_safepoint_check(); | |
| 3264 Threads_lock->unlock(); | |
| 3265 } | |
| 3266 | |
| 3267 if (thread->is_Java_thread()) { | |
| 3268 // This is a JavaThread so we honor the _thread_blocked protocol | |
| 3269 // even for sleeps of 0 milliseconds. This was originally done | |
| 3270 // as a workaround for bug 4338139. However, now we also do it | |
| 3271 // to honor the suspend-equivalent protocol. | |
| 3272 | |
| 3273 JavaThread *jt = (JavaThread *) thread; | |
| 3274 ThreadBlockInVM tbivm(jt); | |
| 3275 | |
| 3276 jt->set_suspend_equivalent(); | |
| 3277 // cleared by handle_special_suspend_equivalent_condition() or | |
| 3278 // java_suspend_self() via check_and_wait_while_suspended() | |
| 3279 | |
| 3280 int ret_code; | |
| 3281 if (millis <= 0) { | |
| 3282 thr_yield(); | |
| 3283 ret_code = 0; | |
| 3284 } else { | |
| 3285 // The original sleep() implementation did not create an | |
| 3286 // OSThreadWaitState helper for sleeps of 0 milliseconds. | |
| 3287 // I'm preserving that decision for now. | |
| 3288 OSThreadWaitState osts(jt->osthread(), false /* not Object.wait() */); | |
| 3289 | |
| 3290 ret_code = os_sleep(millis, interruptible); | |
| 3291 } | |
| 3292 | |
| 3293 // were we externally suspended while we were waiting? | |
| 3294 jt->check_and_wait_while_suspended(); | |
| 3295 | |
| 3296 return ret_code; | |
| 3297 } | |
| 3298 | |
| 3299 // non-JavaThread from this point on: | |
| 3300 | |
| 3301 if (millis <= 0) { | |
| 3302 thr_yield(); | |
| 3303 return 0; | |
| 3304 } | |
| 3305 | |
| 3306 OSThreadWaitState osts(thread->osthread(), false /* not Object.wait() */); | |
| 3307 | |
| 3308 return os_sleep(millis, interruptible); | |
| 3309 } | |
| 3310 | |
|
17706
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
dsimms
parents:
17684
diff
changeset
|
3311 void os::naked_short_sleep(jlong ms) { |
|
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
dsimms
parents:
17684
diff
changeset
|
3312 assert(ms < 1000, "Un-interruptable sleep, short time use only"); |
|
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
dsimms
parents:
17684
diff
changeset
|
3313 |
|
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
dsimms
parents:
17684
diff
changeset
|
3314 // usleep is deprecated and removed from POSIX, in favour of nanosleep, but |
|
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
dsimms
parents:
17684
diff
changeset
|
3315 // Solaris requires -lrt for this. |
|
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
dsimms
parents:
17684
diff
changeset
|
3316 usleep((ms * 1000)); |
|
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
dsimms
parents:
17684
diff
changeset
|
3317 |
|
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
dsimms
parents:
17684
diff
changeset
|
3318 return; |
| 0 | 3319 } |
| 3320 | |
| 3321 // Sleep forever; naked call to OS-specific sleep; use with CAUTION | |
| 3322 void os::infinite_sleep() { | |
| 3323 while (true) { // sleep forever ... | |
| 3324 ::sleep(100); // ... 100 seconds at a time | |
| 3325 } | |
| 3326 } | |
| 3327 | |
| 3328 // Used to convert frequent JVM_Yield() to nops | |
| 3329 bool os::dont_yield() { | |
| 3330 if (DontYieldALot) { | |
| 3331 static hrtime_t last_time = 0; | |
| 3332 hrtime_t diff = getTimeNanos() - last_time; | |
| 3333 | |
| 3334 if (diff < DontYieldALotInterval * 1000000) | |
| 3335 return true; | |
| 3336 | |
| 3337 last_time += diff; | |
| 3338 | |
| 3339 return false; | |
| 3340 } | |
| 3341 else { | |
| 3342 return false; | |
| 3343 } | |
| 3344 } | |
| 3345 | |
| 3346 // Caveat: Solaris os::yield() causes a thread-state transition whereas | |
| 3347 // the linux and win32 implementations do not. This should be checked. | |
| 3348 | |
| 3349 void os::yield() { | |
| 3350 // Yields to all threads with same or greater priority | |
| 3351 os::sleep(Thread::current(), 0, false); | |
| 3352 } | |
| 3353 | |
| 3354 // Note that yield semantics are defined by the scheduling class to which | |
| 3355 // the thread currently belongs. Typically, yield will _not yield to | |
| 3356 // other equal or higher priority threads that reside on the dispatch queues | |
| 3357 // of other CPUs. | |
| 3358 | |
| 3359 os::YieldResult os::NakedYield() { thr_yield(); return os::YIELD_UNKNOWN; } | |
| 3360 | |
| 3361 | |
| 3362 // On Solaris we found that yield_all doesn't always yield to all other threads. | |
| 3363 // There have been cases where there is a thread ready to execute but it doesn't | |
| 3364 // get an lwp as the VM thread continues to spin with sleeps of 1 millisecond. | |
| 3365 // The 1 millisecond wait doesn't seem long enough for the kernel to issue a | |
| 3366 // SIGWAITING signal which will cause a new lwp to be created. So we count the | |
| 3367 // number of times yield_all is called in the one loop and increase the sleep | |
| 3368 // time after 8 attempts. If this fails too we increase the concurrency level | |
| 3369 // so that the starving thread would get an lwp | |
| 3370 | |
| 3371 void os::yield_all(int attempts) { | |
| 3372 // Yields to all threads, including threads with lower priorities | |
| 3373 if (attempts == 0) { | |
| 3374 os::sleep(Thread::current(), 1, false); | |
| 3375 } else { | |
| 3376 int iterations = attempts % 30; | |
| 3377 if (iterations == 0 && !os::Solaris::T2_libthread()) { | |
| 3378 // thr_setconcurrency and _getconcurrency make sense only under T1. | |
| 3379 int noofLWPS = thr_getconcurrency(); | |
| 3380 if (noofLWPS < (Threads::number_of_threads() + 2)) { | |
| 3381 thr_setconcurrency(thr_getconcurrency() + 1); | |
| 3382 } | |
| 3383 } else if (iterations < 25) { | |
| 3384 os::sleep(Thread::current(), 1, false); | |
| 3385 } else { | |
| 3386 os::sleep(Thread::current(), 10, false); | |
| 3387 } | |
| 3388 } | |
| 3389 } | |
| 3390 | |
| 3391 // Called from the tight loops to possibly influence time-sharing heuristics | |
| 3392 void os::loop_breaker(int attempts) { | |
| 3393 os::yield_all(attempts); | |
| 3394 } | |
| 3395 | |
| 3396 | |
| 3397 // Interface for setting lwp priorities. If we are using T2 libthread, | |
| 3398 // which forces the use of BoundThreads or we manually set UseBoundThreads, | |
| 3399 // all of our threads will be assigned to real lwp's. Using the thr_setprio | |
| 3400 // function is meaningless in this mode so we must adjust the real lwp's priority | |
| 3401 // The routines below implement the getting and setting of lwp priorities. | |
| 3402 // | |
| 3403 // Note: There are three priority scales used on Solaris. Java priotities | |
| 3404 // which range from 1 to 10, libthread "thr_setprio" scale which range | |
| 3405 // from 0 to 127, and the current scheduling class of the process we | |
| 3406 // are running in. This is typically from -60 to +60. | |
| 3407 // The setting of the lwp priorities in done after a call to thr_setprio | |
| 3408 // so Java priorities are mapped to libthread priorities and we map from | |
| 3409 // the latter to lwp priorities. We don't keep priorities stored in | |
| 3410 // Java priorities since some of our worker threads want to set priorities | |
| 3411 // higher than all Java threads. | |
| 3412 // | |
| 3413 // For related information: | |
| 3414 // (1) man -s 2 priocntl | |
| 3415 // (2) man -s 4 priocntl | |
| 3416 // (3) man dispadmin | |
| 3417 // = librt.so | |
| 3418 // = libthread/common/rtsched.c - thrp_setlwpprio(). | |
| 3419 // = ps -cL <pid> ... to validate priority. | |
| 3420 // = sched_get_priority_min and _max | |
| 3421 // pthread_create | |
| 3422 // sched_setparam | |
| 3423 // pthread_setschedparam | |
| 3424 // | |
| 3425 // Assumptions: | |
| 3426 // + We assume that all threads in the process belong to the same | |
| 3427 // scheduling class. IE. an homogenous process. | |
| 3428 // + Must be root or in IA group to change change "interactive" attribute. | |
| 3429 // Priocntl() will fail silently. The only indication of failure is when | |
| 3430 // we read-back the value and notice that it hasn't changed. | |
| 3431 // + Interactive threads enter the runq at the head, non-interactive at the tail. | |
| 3432 // + For RT, change timeslice as well. Invariant: | |
| 3433 // constant "priority integral" | |
| 3434 // Konst == TimeSlice * (60-Priority) | |
| 3435 // Given a priority, compute appropriate timeslice. | |
| 3436 // + Higher numerical values have higher priority. | |
| 3437 | |
| 3438 // sched class attributes | |
| 3439 typedef struct { | |
| 3440 int schedPolicy; // classID | |
| 3441 int maxPrio; | |
| 3442 int minPrio; | |
| 3443 } SchedInfo; | |
| 3444 | |
| 3445 | |
|
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|
3446 static SchedInfo tsLimits, iaLimits, rtLimits, fxLimits; |
| 0 | 3447 |
| 3448 #ifdef ASSERT | |
| 3449 static int ReadBackValidate = 1; | |
| 3450 #endif | |
| 3451 static int myClass = 0; | |
| 3452 static int myMin = 0; | |
| 3453 static int myMax = 0; | |
| 3454 static int myCur = 0; | |
| 3455 static bool priocntl_enable = false; | |
| 3456 | |
|
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|
3457 static const int criticalPrio = 60; // FX/60 is critical thread class/priority on T4 |
|
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|
3458 static int java_MaxPriority_to_os_priority = 0; // Saved mapping |
| 0 | 3459 |
| 3460 | |
| 3461 // lwp_priocntl_init | |
| 3462 // | |
| 3463 // Try to determine the priority scale for our process. | |
| 3464 // | |
| 3465 // Return errno or 0 if OK. | |
| 3466 // | |
|
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|
3467 static int lwp_priocntl_init () { |
| 0 | 3468 int rslt; |
| 3469 pcinfo_t ClassInfo; | |
| 3470 pcparms_t ParmInfo; | |
| 3471 int i; | |
| 3472 | |
| 3473 if (!UseThreadPriorities) return 0; | |
| 3474 | |
| 3475 // We are using Bound threads, we need to determine our priority ranges | |
| 3476 if (os::Solaris::T2_libthread() || UseBoundThreads) { | |
| 3477 // If ThreadPriorityPolicy is 1, switch tables | |
| 3478 if (ThreadPriorityPolicy == 1) { | |
|
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|
3479 for (i = 0 ; i < CriticalPriority+1; i++) |
| 0 | 3480 os::java_to_os_priority[i] = prio_policy1[i]; |
| 3481 } | |
|
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|
3482 if (UseCriticalJavaThreadPriority) { |
|
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|
3483 // MaxPriority always maps to the FX scheduling class and criticalPrio. |
|
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|
3484 // See set_native_priority() and set_lwp_class_and_priority(). |
|
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|
3485 // Save original MaxPriority mapping in case attempt to |
|
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|
3486 // use critical priority fails. |
|
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|
3487 java_MaxPriority_to_os_priority = os::java_to_os_priority[MaxPriority]; |
|
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|
3488 // Set negative to distinguish from other priorities |
|
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|
3489 os::java_to_os_priority[MaxPriority] = -criticalPrio; |
|
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|
3490 } |
| 0 | 3491 } |
| 3492 // Not using Bound Threads, set to ThreadPolicy 1 | |
| 3493 else { | |
|
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|
3494 for ( i = 0 ; i < CriticalPriority+1; i++ ) { |
| 0 | 3495 os::java_to_os_priority[i] = prio_policy1[i]; |
| 3496 } | |
| 3497 return 0; | |
| 3498 } | |
| 3499 | |
| 3500 // Get IDs for a set of well-known scheduling classes. | |
| 3501 // TODO-FIXME: GETCLINFO returns the current # of classes in the | |
| 3502 // the system. We should have a loop that iterates over the | |
| 3503 // classID values, which are known to be "small" integers. | |
| 3504 | |
| 3505 strcpy(ClassInfo.pc_clname, "TS"); | |
| 3506 ClassInfo.pc_cid = -1; | |
|
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|
3507 rslt = priocntl(P_ALL, 0, PC_GETCID, (caddr_t)&ClassInfo); |
| 0 | 3508 if (rslt < 0) return errno; |
| 3509 assert(ClassInfo.pc_cid != -1, "cid for TS class is -1"); | |
| 3510 tsLimits.schedPolicy = ClassInfo.pc_cid; | |
| 3511 tsLimits.maxPrio = ((tsinfo_t*)ClassInfo.pc_clinfo)->ts_maxupri; | |
| 3512 tsLimits.minPrio = -tsLimits.maxPrio; | |
| 3513 | |
| 3514 strcpy(ClassInfo.pc_clname, "IA"); | |
| 3515 ClassInfo.pc_cid = -1; | |
|
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|
3516 rslt = priocntl(P_ALL, 0, PC_GETCID, (caddr_t)&ClassInfo); |
| 0 | 3517 if (rslt < 0) return errno; |
| 3518 assert(ClassInfo.pc_cid != -1, "cid for IA class is -1"); | |
| 3519 iaLimits.schedPolicy = ClassInfo.pc_cid; | |
| 3520 iaLimits.maxPrio = ((iainfo_t*)ClassInfo.pc_clinfo)->ia_maxupri; | |
| 3521 iaLimits.minPrio = -iaLimits.maxPrio; | |
| 3522 | |
| 3523 strcpy(ClassInfo.pc_clname, "RT"); | |
| 3524 ClassInfo.pc_cid = -1; | |
|
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|
3525 rslt = priocntl(P_ALL, 0, PC_GETCID, (caddr_t)&ClassInfo); |
| 0 | 3526 if (rslt < 0) return errno; |
| 3527 assert(ClassInfo.pc_cid != -1, "cid for RT class is -1"); | |
| 3528 rtLimits.schedPolicy = ClassInfo.pc_cid; | |
| 3529 rtLimits.maxPrio = ((rtinfo_t*)ClassInfo.pc_clinfo)->rt_maxpri; | |
| 3530 rtLimits.minPrio = 0; | |
| 3531 | |
|
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|
3532 strcpy(ClassInfo.pc_clname, "FX"); |
|
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|
3533 ClassInfo.pc_cid = -1; |
|
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|
3534 rslt = priocntl(P_ALL, 0, PC_GETCID, (caddr_t)&ClassInfo); |
|
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|
3535 if (rslt < 0) return errno; |
|
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|
3536 assert(ClassInfo.pc_cid != -1, "cid for FX class is -1"); |
|
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|
3537 fxLimits.schedPolicy = ClassInfo.pc_cid; |
|
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|
3538 fxLimits.maxPrio = ((fxinfo_t*)ClassInfo.pc_clinfo)->fx_maxupri; |
|
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|
3539 fxLimits.minPrio = 0; |
| 0 | 3540 |
| 3541 // Query our "current" scheduling class. | |
|
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|
3542 // This will normally be IA, TS or, rarely, FX or RT. |
|
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|
3543 memset(&ParmInfo, 0, sizeof(ParmInfo)); |
| 0 | 3544 ParmInfo.pc_cid = PC_CLNULL; |
|
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|
3545 rslt = priocntl(P_PID, P_MYID, PC_GETPARMS, (caddr_t)&ParmInfo); |
|
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|
3546 if (rslt < 0) return errno; |
| 0 | 3547 myClass = ParmInfo.pc_cid; |
| 3548 | |
| 3549 // We now know our scheduling classId, get specific information | |
|
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|
3550 // about the class. |
| 0 | 3551 ClassInfo.pc_cid = myClass; |
| 3552 ClassInfo.pc_clname[0] = 0; | |
|
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|
3553 rslt = priocntl((idtype)0, 0, PC_GETCLINFO, (caddr_t)&ClassInfo); |
|
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|
3554 if (rslt < 0) return errno; |
|
de268c8a8075
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|
3555 |
|
de268c8a8075
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|
3556 if (ThreadPriorityVerbose) { |
|
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|
3557 tty->print_cr("lwp_priocntl_init: Class=%d(%s)...", myClass, ClassInfo.pc_clname); |
|
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|
3558 } |
| 0 | 3559 |
| 3560 memset(&ParmInfo, 0, sizeof(pcparms_t)); | |
| 3561 ParmInfo.pc_cid = PC_CLNULL; | |
|
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|
3562 rslt = priocntl(P_PID, P_MYID, PC_GETPARMS, (caddr_t)&ParmInfo); |
| 0 | 3563 if (rslt < 0) return errno; |
| 3564 | |
| 3565 if (ParmInfo.pc_cid == rtLimits.schedPolicy) { | |
| 3566 myMin = rtLimits.minPrio; | |
| 3567 myMax = rtLimits.maxPrio; | |
| 3568 } else if (ParmInfo.pc_cid == iaLimits.schedPolicy) { | |
| 3569 iaparms_t *iaInfo = (iaparms_t*)ParmInfo.pc_clparms; | |
| 3570 myMin = iaLimits.minPrio; | |
| 3571 myMax = iaLimits.maxPrio; | |
| 3572 myMax = MIN2(myMax, (int)iaInfo->ia_uprilim); // clamp - restrict | |
| 3573 } else if (ParmInfo.pc_cid == tsLimits.schedPolicy) { | |
| 3574 tsparms_t *tsInfo = (tsparms_t*)ParmInfo.pc_clparms; | |
| 3575 myMin = tsLimits.minPrio; | |
| 3576 myMax = tsLimits.maxPrio; | |
| 3577 myMax = MIN2(myMax, (int)tsInfo->ts_uprilim); // clamp - restrict | |
|
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|
3578 } else if (ParmInfo.pc_cid == fxLimits.schedPolicy) { |
|
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|
3579 fxparms_t *fxInfo = (fxparms_t*)ParmInfo.pc_clparms; |
|
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|
3580 myMin = fxLimits.minPrio; |
|
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|
3581 myMax = fxLimits.maxPrio; |
|
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|
3582 myMax = MIN2(myMax, (int)fxInfo->fx_uprilim); // clamp - restrict |
| 0 | 3583 } else { |
| 3584 // No clue - punt | |
| 3585 if (ThreadPriorityVerbose) | |
| 3586 tty->print_cr ("Unknown scheduling class: %s ... \n", ClassInfo.pc_clname); | |
| 3587 return EINVAL; // no clue, punt | |
| 3588 } | |
| 3589 | |
|
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|
3590 if (ThreadPriorityVerbose) { |
|
de268c8a8075
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|
3591 tty->print_cr ("Thread priority Range: [%d..%d]\n", myMin, myMax); |
|
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|
3592 } |
| 0 | 3593 |
| 3594 priocntl_enable = true; // Enable changing priorities | |
| 3595 return 0; | |
| 3596 } | |
| 3597 | |
| 3598 #define IAPRI(x) ((iaparms_t *)((x).pc_clparms)) | |
| 3599 #define RTPRI(x) ((rtparms_t *)((x).pc_clparms)) | |
| 3600 #define TSPRI(x) ((tsparms_t *)((x).pc_clparms)) | |
|
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|
3601 #define FXPRI(x) ((fxparms_t *)((x).pc_clparms)) |
| 0 | 3602 |
| 3603 | |
| 3604 // scale_to_lwp_priority | |
| 3605 // | |
| 3606 // Convert from the libthread "thr_setprio" scale to our current | |
| 3607 // lwp scheduling class scale. | |
| 3608 // | |
| 3609 static | |
| 3610 int scale_to_lwp_priority (int rMin, int rMax, int x) | |
| 3611 { | |
| 3612 int v; | |
| 3613 | |
| 3614 if (x == 127) return rMax; // avoid round-down | |
| 3615 v = (((x*(rMax-rMin)))/128)+rMin; | |
| 3616 return v; | |
| 3617 } | |
| 3618 | |
| 3619 | |
|
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|
3620 // set_lwp_class_and_priority |
| 0 | 3621 // |
|
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|
3622 // Set the class and priority of the lwp. This call should only |
|
de268c8a8075
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|
3623 // be made when using bound threads (T2 threads are bound by default). |
| 0 | 3624 // |
|
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|
3625 int set_lwp_class_and_priority(int ThreadID, int lwpid, |
|
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|
3626 int newPrio, int new_class, bool scale) { |
| 0 | 3627 int rslt; |
| 3628 int Actual, Expected, prv; | |
| 3629 pcparms_t ParmInfo; // for GET-SET | |
| 3630 #ifdef ASSERT | |
| 3631 pcparms_t ReadBack; // for readback | |
| 3632 #endif | |
| 3633 | |
| 3634 // Set priority via PC_GETPARMS, update, PC_SETPARMS | |
| 3635 // Query current values. | |
| 3636 // TODO: accelerate this by eliminating the PC_GETPARMS call. | |
| 3637 // Cache "pcparms_t" in global ParmCache. | |
| 3638 // TODO: elide set-to-same-value | |
| 3639 | |
| 3640 // If something went wrong on init, don't change priorities. | |
| 3641 if ( !priocntl_enable ) { | |
| 3642 if (ThreadPriorityVerbose) | |
| 3643 tty->print_cr("Trying to set priority but init failed, ignoring"); | |
| 3644 return EINVAL; | |
| 3645 } | |
| 3646 | |
| 3647 // If lwp hasn't started yet, just return | |
| 3648 // the _start routine will call us again. | |
| 3649 if ( lwpid <= 0 ) { | |
| 3650 if (ThreadPriorityVerbose) { | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3651 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
|
3652 INTPTR_FORMAT " to %d, lwpid not set", |
| 0 | 3653 ThreadID, newPrio); |
| 3654 } | |
| 3655 return 0; | |
| 3656 } | |
| 3657 | |
| 3658 if (ThreadPriorityVerbose) { | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3659 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
|
3660 INTPTR_FORMAT "@" INTPTR_FORMAT " %d) ", |
| 0 | 3661 ThreadID, lwpid, newPrio); |
| 3662 } | |
| 3663 | |
| 3664 memset(&ParmInfo, 0, sizeof(pcparms_t)); | |
| 3665 ParmInfo.pc_cid = PC_CLNULL; | |
|
11111
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3666 rslt = priocntl(P_LWPID, lwpid, PC_GETPARMS, (caddr_t)&ParmInfo); |
| 0 | 3667 if (rslt < 0) return errno; |
| 3668 | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3669 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
|
3670 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
|
3671 |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3672 if (new_class == rtLimits.schedPolicy) { |
| 0 | 3673 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
|
3674 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
|
3675 rtLimits.maxPrio, newPrio) |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3676 : newPrio; |
| 0 | 3677 rtInfo->rt_tqsecs = RT_NOCHANGE; |
| 3678 rtInfo->rt_tqnsecs = RT_NOCHANGE; | |
| 3679 if (ThreadPriorityVerbose) { | |
| 3680 tty->print_cr("RT: %d->%d\n", newPrio, rtInfo->rt_pri); | |
| 3681 } | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3682 } 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
|
3683 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
|
3684 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
|
3685 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
|
3686 ? (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
|
3687 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
|
3688 maxClamped, newPrio) |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3689 : newPrio; |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3690 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
|
3691 ? IA_NOCHANGE : (pri_t)iaLimits.maxPrio; |
| 0 | 3692 iaInfo->ia_mode = IA_NOCHANGE; |
| 3693 if (ThreadPriorityVerbose) { | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3694 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
|
3695 iaLimits.minPrio, maxClamped, newPrio, iaInfo->ia_upri); |
| 0 | 3696 } |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3697 } 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
|
3698 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
|
3699 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
|
3700 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
|
3701 ? (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
|
3702 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
|
3703 maxClamped, newPrio) |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3704 : newPrio; |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3705 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
|
3706 ? TS_NOCHANGE : (pri_t)tsLimits.maxPrio; |
| 0 | 3707 if (ThreadPriorityVerbose) { |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3708 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
|
3709 tsLimits.minPrio, maxClamped, newPrio, tsInfo->ts_upri); |
| 0 | 3710 } |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3711 } 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
|
3712 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
|
3713 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
|
3714 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
|
3715 ? (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
|
3716 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
|
3717 maxClamped, newPrio) |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3718 : newPrio; |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3719 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
|
3720 ? 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
|
3721 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
|
3722 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
|
3723 if (ThreadPriorityVerbose) { |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3724 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
|
3725 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
|
3726 } |
| 0 | 3727 } else { |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3728 if (ThreadPriorityVerbose) { |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3729 tty->print_cr("Unknown new scheduling class %d\n", new_class); |
| 0 | 3730 } |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3731 return EINVAL; // no clue, punt |
| 0 | 3732 } |
| 3733 | |
|
11111
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3734 rslt = priocntl(P_LWPID, lwpid, PC_SETPARMS, (caddr_t)&ParmInfo); |
| 0 | 3735 if (ThreadPriorityVerbose && rslt) { |
| 3736 tty->print_cr ("PC_SETPARMS ->%d %d\n", rslt, errno); | |
| 3737 } | |
| 3738 if (rslt < 0) return errno; | |
| 3739 | |
| 3740 #ifdef ASSERT | |
| 3741 // Sanity check: read back what we just attempted to set. | |
| 3742 // In theory it could have changed in the interim ... | |
| 3743 // | |
| 3744 // The priocntl system call is tricky. | |
| 3745 // Sometimes it'll validate the priority value argument and | |
| 3746 // return EINVAL if unhappy. At other times it fails silently. | |
| 3747 // Readbacks are prudent. | |
| 3748 | |
| 3749 if (!ReadBackValidate) return 0; | |
| 3750 | |
| 3751 memset(&ReadBack, 0, sizeof(pcparms_t)); | |
| 3752 ReadBack.pc_cid = PC_CLNULL; | |
|
11111
dec841e0c9aa
8016749: -XX:+UseISM fails an assert(obj->is_oop()) when running SPECjbb2005
anoll
parents:
10986
diff
changeset
|
3753 rslt = priocntl(P_LWPID, lwpid, PC_GETPARMS, (caddr_t)&ReadBack); |
| 0 | 3754 assert(rslt >= 0, "priocntl failed"); |
| 3755 Actual = Expected = 0xBAD; | |
| 3756 assert(ParmInfo.pc_cid == ReadBack.pc_cid, "cid's don't match"); | |
| 3757 if (ParmInfo.pc_cid == rtLimits.schedPolicy) { | |
| 3758 Actual = RTPRI(ReadBack)->rt_pri; | |
| 3759 Expected = RTPRI(ParmInfo)->rt_pri; | |
| 3760 } else if (ParmInfo.pc_cid == iaLimits.schedPolicy) { | |
| 3761 Actual = IAPRI(ReadBack)->ia_upri; | |
| 3762 Expected = IAPRI(ParmInfo)->ia_upri; | |
| 3763 } else if (ParmInfo.pc_cid == tsLimits.schedPolicy) { | |
| 3764 Actual = TSPRI(ReadBack)->ts_upri; | |
| 3765 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
|
3766 } 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
|
3767 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
|
3768 Expected = FXPRI(ParmInfo)->fx_upri; |
| 0 | 3769 } else { |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3770 if (ThreadPriorityVerbose) { |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3771 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
|
3772 ParmInfo.pc_cid); |
| 0 | 3773 } |
| 3774 } | |
| 3775 | |
| 3776 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
|
3777 if (ThreadPriorityVerbose) { |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3778 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
|
3779 lwpid, newPrio, ReadBack.pc_cid, Actual, Expected); |
| 0 | 3780 } |
| 3781 } | |
| 3782 #endif | |
| 3783 | |
| 3784 return 0; | |
| 3785 } | |
| 3786 | |
| 3787 // Solaris only gives access to 128 real priorities at a time, | |
| 3788 // so we expand Java's ten to fill this range. This would be better | |
| 3789 // if we dynamically adjusted relative priorities. | |
| 3790 // | |
| 3791 // The ThreadPriorityPolicy option allows us to select 2 different | |
| 3792 // priority scales. | |
| 3793 // | |
| 3794 // ThreadPriorityPolicy=0 | |
| 3795 // Since the Solaris' default priority is MaximumPriority, we do not | |
| 3796 // set a priority lower than Max unless a priority lower than | |
| 3797 // NormPriority is requested. | |
| 3798 // | |
| 3799 // ThreadPriorityPolicy=1 | |
| 3800 // This mode causes the priority table to get filled with | |
| 3801 // linear values. NormPriority get's mapped to 50% of the | |
| 3802 // Maximum priority an so on. This will cause VM threads | |
| 3803 // to get unfair treatment against other Solaris processes | |
| 3804 // which do not explicitly alter their thread priorities. | |
| 3805 // | |
| 3806 | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3807 int os::java_to_os_priority[CriticalPriority + 1] = { |
| 0 | 3808 -99999, // 0 Entry should never be used |
| 3809 | |
| 3810 0, // 1 MinPriority | |
| 3811 32, // 2 | |
| 3812 64, // 3 | |
| 3813 | |
| 3814 96, // 4 | |
| 3815 127, // 5 NormPriority | |
| 3816 127, // 6 | |
| 3817 | |
| 3818 127, // 7 | |
| 3819 127, // 8 | |
| 3820 127, // 9 NearMaxPriority | |
| 3821 | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3822 127, // 10 MaxPriority |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3823 |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3824 -criticalPrio // 11 CriticalPriority |
| 0 | 3825 }; |
| 3826 | |
| 3827 OSReturn os::set_native_priority(Thread* thread, int newpri) { | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3828 OSThread* osthread = thread->osthread(); |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3829 |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3830 // Save requested priority in case the thread hasn't been started |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3831 osthread->set_native_priority(newpri); |
|
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3832 |
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3833 // Check for critical priority request |
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3834 bool fxcritical = false; |
|
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3835 if (newpri == -criticalPrio) { |
|
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3836 fxcritical = true; |
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3837 newpri = criticalPrio; |
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3838 } |
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3839 |
| 0 | 3840 assert(newpri >= MinimumPriority && newpri <= MaximumPriority, "bad priority mapping"); |
|
4854
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3841 if (!UseThreadPriorities) return OS_OK; |
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3842 |
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3843 int status = 0; |
|
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3844 |
|
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3845 if (!fxcritical) { |
|
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3846 // Use thr_setprio only if we have a priority that thr_setprio understands |
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3847 status = thr_setprio(thread->osthread()->thread_id(), newpri); |
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3848 } |
|
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3849 |
|
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3850 if (os::Solaris::T2_libthread() || |
|
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3851 (UseBoundThreads && osthread->is_vm_created())) { |
|
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3852 int lwp_status = |
|
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3853 set_lwp_class_and_priority(osthread->thread_id(), |
|
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3854 osthread->lwp_id(), |
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3855 newpri, |
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3856 fxcritical ? fxLimits.schedPolicy : myClass, |
|
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3857 !fxcritical); |
|
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3858 if (lwp_status != 0 && fxcritical) { |
|
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3859 // Try again, this time without changing the scheduling class |
|
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3860 newpri = java_MaxPriority_to_os_priority; |
|
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3861 lwp_status = set_lwp_class_and_priority(osthread->thread_id(), |
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3862 osthread->lwp_id(), |
|
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|
3863 newpri, myClass, false); |
|
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3864 } |
|
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3865 status |= lwp_status; |
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|
3866 } |
| 0 | 3867 return (status == 0) ? OS_OK : OS_ERR; |
| 3868 } | |
| 3869 | |
| 3870 | |
| 3871 OSReturn os::get_native_priority(const Thread* const thread, int *priority_ptr) { | |
| 3872 int p; | |
| 3873 if ( !UseThreadPriorities ) { | |
| 3874 *priority_ptr = NormalPriority; | |
| 3875 return OS_OK; | |
| 3876 } | |
| 3877 int status = thr_getprio(thread->osthread()->thread_id(), &p); | |
| 3878 if (status != 0) { | |
| 3879 return OS_ERR; | |
| 3880 } | |
| 3881 *priority_ptr = p; | |
| 3882 return OS_OK; | |
| 3883 } | |
| 3884 | |
| 3885 | |
| 3886 // Hint to the underlying OS that a task switch would not be good. | |
| 3887 // Void return because it's a hint and can fail. | |
| 3888 void os::hint_no_preempt() { | |
| 3889 schedctl_start(schedctl_init()); | |
| 3890 } | |
| 3891 | |
| 10405 | 3892 static void resume_clear_context(OSThread *osthread) { |
| 3893 osthread->set_ucontext(NULL); | |
| 3894 } | |
| 3895 | |
| 3896 static void suspend_save_context(OSThread *osthread, ucontext_t* context) { | |
| 3897 osthread->set_ucontext(context); | |
| 3898 } | |
| 3899 | |
| 3900 static Semaphore sr_semaphore; | |
| 3901 | |
| 3902 void os::Solaris::SR_handler(Thread* thread, ucontext_t* uc) { | |
| 3903 // Save and restore errno to avoid confusing native code with EINTR | |
| 3904 // after sigsuspend. | |
| 3905 int old_errno = errno; | |
| 3906 | |
| 3907 OSThread* osthread = thread->osthread(); | |
| 3908 assert(thread->is_VM_thread() || thread->is_Java_thread(), "Must be VMThread or JavaThread"); | |
| 3909 | |
| 3910 os::SuspendResume::State current = osthread->sr.state(); | |
| 3911 if (current == os::SuspendResume::SR_SUSPEND_REQUEST) { | |
| 3912 suspend_save_context(osthread, uc); | |
| 3913 | |
| 3914 // attempt to switch the state, we assume we had a SUSPEND_REQUEST | |
| 3915 os::SuspendResume::State state = osthread->sr.suspended(); | |
| 3916 if (state == os::SuspendResume::SR_SUSPENDED) { | |
| 3917 sigset_t suspend_set; // signals for sigsuspend() | |
| 3918 | |
| 3919 // get current set of blocked signals and unblock resume signal | |
| 3920 thr_sigsetmask(SIG_BLOCK, NULL, &suspend_set); | |
| 3921 sigdelset(&suspend_set, os::Solaris::SIGasync()); | |
| 3922 | |
| 3923 sr_semaphore.signal(); | |
| 3924 // wait here until we are resumed | |
| 3925 while (1) { | |
| 3926 sigsuspend(&suspend_set); | |
| 3927 | |
| 3928 os::SuspendResume::State result = osthread->sr.running(); | |
| 3929 if (result == os::SuspendResume::SR_RUNNING) { | |
| 3930 sr_semaphore.signal(); | |
| 3931 break; | |
| 3932 } | |
| 3933 } | |
| 3934 | |
| 3935 } else if (state == os::SuspendResume::SR_RUNNING) { | |
| 3936 // request was cancelled, continue | |
| 3937 } else { | |
| 3938 ShouldNotReachHere(); | |
| 3939 } | |
| 3940 | |
| 3941 resume_clear_context(osthread); | |
| 3942 } else if (current == os::SuspendResume::SR_RUNNING) { | |
| 3943 // request was cancelled, continue | |
| 3944 } else if (current == os::SuspendResume::SR_WAKEUP_REQUEST) { | |
| 3945 // ignore | |
| 3946 } else { | |
| 3947 // ignore | |
| 3948 } | |
| 3949 | |
| 3950 errno = old_errno; | |
| 3951 } | |
| 3952 | |
| 3953 | |
| 0 | 3954 void os::interrupt(Thread* thread) { |
| 3955 assert(Thread::current() == thread || Threads_lock->owned_by_self(), "possibility of dangling Thread pointer"); | |
| 3956 | |
| 3957 OSThread* osthread = thread->osthread(); | |
| 3958 | |
| 3959 int isInterrupted = osthread->interrupted(); | |
| 3960 if (!isInterrupted) { | |
| 3961 osthread->set_interrupted(true); | |
| 3962 OrderAccess::fence(); | |
| 3963 // os::sleep() is implemented with either poll (NULL,0,timeout) or | |
| 3964 // by parking on _SleepEvent. If the former, thr_kill will unwedge | |
| 3965 // the sleeper by SIGINTR, otherwise the unpark() will wake the sleeper. | |
| 3966 ParkEvent * const slp = thread->_SleepEvent ; | |
| 3967 if (slp != NULL) slp->unpark() ; | |
| 3968 } | |
| 3969 | |
| 3970 // For JSR166: unpark after setting status but before thr_kill -dl | |
| 3971 if (thread->is_Java_thread()) { | |
| 3972 ((JavaThread*)thread)->parker()->unpark(); | |
| 3973 } | |
| 3974 | |
| 3975 // Handle interruptible wait() ... | |
| 3976 ParkEvent * const ev = thread->_ParkEvent ; | |
| 3977 if (ev != NULL) ev->unpark() ; | |
| 3978 | |
| 3979 // When events are used everywhere for os::sleep, then this thr_kill | |
| 3980 // will only be needed if UseVMInterruptibleIO is true. | |
| 3981 | |
| 3982 if (!isInterrupted) { | |
| 3983 int status = thr_kill(osthread->thread_id(), os::Solaris::SIGinterrupt()); | |
| 3984 assert_status(status == 0, status, "thr_kill"); | |
| 3985 | |
| 3986 // Bump thread interruption counter | |
| 3987 RuntimeService::record_thread_interrupt_signaled_count(); | |
| 3988 } | |
| 3989 } | |
| 3990 | |
| 3991 | |
| 3992 bool os::is_interrupted(Thread* thread, bool clear_interrupted) { | |
| 3993 assert(Thread::current() == thread || Threads_lock->owned_by_self(), "possibility of dangling Thread pointer"); | |
| 3994 | |
| 3995 OSThread* osthread = thread->osthread(); | |
| 3996 | |
| 3997 bool res = osthread->interrupted(); | |
| 3998 | |
| 3999 // NOTE that since there is no "lock" around these two operations, | |
| 4000 // there is the possibility that the interrupted flag will be | |
| 4001 // "false" but that the interrupt event will be set. This is | |
| 4002 // intentional. The effect of this is that Object.wait() will appear | |
| 4003 // to have a spurious wakeup, which is not harmful, and the | |
| 4004 // possibility is so rare that it is not worth the added complexity | |
| 4005 // to add yet another lock. It has also been recommended not to put | |
| 4006 // the interrupted flag into the os::Solaris::Event structure, | |
| 4007 // because it hides the issue. | |
| 4008 if (res && clear_interrupted) { | |
| 4009 osthread->set_interrupted(false); | |
| 4010 } | |
| 4011 return res; | |
| 4012 } | |
| 4013 | |
| 4014 | |
| 4015 void os::print_statistics() { | |
| 4016 } | |
| 4017 | |
| 4018 int os::message_box(const char* title, const char* message) { | |
| 4019 int i; | |
| 4020 fdStream err(defaultStream::error_fd()); | |
| 4021 for (i = 0; i < 78; i++) err.print_raw("="); | |
| 4022 err.cr(); | |
| 4023 err.print_raw_cr(title); | |
| 4024 for (i = 0; i < 78; i++) err.print_raw("-"); | |
| 4025 err.cr(); | |
| 4026 err.print_raw_cr(message); | |
| 4027 for (i = 0; i < 78; i++) err.print_raw("="); | |
| 4028 err.cr(); | |
| 4029 | |
| 4030 char buf[16]; | |
| 4031 // Prevent process from exiting upon "read error" without consuming all CPU | |
| 4032 while (::read(0, buf, sizeof(buf)) <= 0) { ::sleep(100); } | |
| 4033 | |
| 4034 return buf[0] == 'y' || buf[0] == 'Y'; | |
| 4035 } | |
| 4036 | |
| 10405 | 4037 static int sr_notify(OSThread* osthread) { |
| 4038 int status = thr_kill(osthread->thread_id(), os::Solaris::SIGasync()); | |
| 4039 assert_status(status == 0, status, "thr_kill"); | |
| 4040 return status; | |
| 4041 } | |
| 4042 | |
| 4043 // "Randomly" selected value for how long we want to spin | |
| 4044 // before bailing out on suspending a thread, also how often | |
| 4045 // we send a signal to a thread we want to resume | |
| 4046 static const int RANDOMLY_LARGE_INTEGER = 1000000; | |
| 4047 static const int RANDOMLY_LARGE_INTEGER2 = 100; | |
| 4048 | |
| 4049 static bool do_suspend(OSThread* osthread) { | |
| 4050 assert(osthread->sr.is_running(), "thread should be running"); | |
| 4051 assert(!sr_semaphore.trywait(), "semaphore has invalid state"); | |
| 4052 | |
| 4053 // mark as suspended and send signal | |
| 4054 if (osthread->sr.request_suspend() != os::SuspendResume::SR_SUSPEND_REQUEST) { | |
| 4055 // failed to switch, state wasn't running? | |
| 4056 ShouldNotReachHere(); | |
| 4057 return false; | |
| 4058 } | |
| 4059 | |
| 4060 if (sr_notify(osthread) != 0) { | |
| 4061 ShouldNotReachHere(); | |
| 4062 } | |
| 4063 | |
| 4064 // managed to send the signal and switch to SUSPEND_REQUEST, now wait for SUSPENDED | |
| 4065 while (true) { | |
| 4066 if (sr_semaphore.timedwait(0, 2000 * NANOSECS_PER_MILLISEC)) { | |
| 4067 break; | |
| 4068 } else { | |
| 4069 // timeout | |
| 4070 os::SuspendResume::State cancelled = osthread->sr.cancel_suspend(); | |
| 4071 if (cancelled == os::SuspendResume::SR_RUNNING) { | |
| 4072 return false; | |
| 4073 } else if (cancelled == os::SuspendResume::SR_SUSPENDED) { | |
| 4074 // make sure that we consume the signal on the semaphore as well | |
| 4075 sr_semaphore.wait(); | |
| 4076 break; | |
| 4077 } else { | |
| 4078 ShouldNotReachHere(); | |
| 4079 return false; | |
| 4080 } | |
| 4081 } | |
| 4082 } | |
| 4083 | |
| 4084 guarantee(osthread->sr.is_suspended(), "Must be suspended"); | |
| 4085 return true; | |
| 4086 } | |
| 4087 | |
| 4088 static void do_resume(OSThread* osthread) { | |
| 4089 assert(osthread->sr.is_suspended(), "thread should be suspended"); | |
| 4090 assert(!sr_semaphore.trywait(), "invalid semaphore state"); | |
| 4091 | |
| 4092 if (osthread->sr.request_wakeup() != os::SuspendResume::SR_WAKEUP_REQUEST) { | |
| 4093 // failed to switch to WAKEUP_REQUEST | |
| 4094 ShouldNotReachHere(); | |
| 4095 return; | |
| 4096 } | |
| 4097 | |
| 4098 while (true) { | |
| 4099 if (sr_notify(osthread) == 0) { | |
| 4100 if (sr_semaphore.timedwait(0, 2 * NANOSECS_PER_MILLISEC)) { | |
| 4101 if (osthread->sr.is_running()) { | |
| 4102 return; | |
| 4103 } | |
| 4104 } | |
| 4105 } else { | |
| 4106 ShouldNotReachHere(); | |
| 4107 } | |
| 4108 } | |
| 4109 | |
| 4110 guarantee(osthread->sr.is_running(), "Must be running!"); | |
| 4111 } | |
| 4112 | |
| 4113 void os::SuspendedThreadTask::internal_do_task() { | |
| 4114 if (do_suspend(_thread->osthread())) { | |
| 4115 SuspendedThreadTaskContext context(_thread, _thread->osthread()->ucontext()); | |
| 4116 do_task(context); | |
| 4117 do_resume(_thread->osthread()); | |
| 4118 } | |
| 4119 } | |
| 4120 | |
| 4121 class PcFetcher : public os::SuspendedThreadTask { | |
| 4122 public: | |
| 4123 PcFetcher(Thread* thread) : os::SuspendedThreadTask(thread) {} | |
| 4124 ExtendedPC result(); | |
| 4125 protected: | |
| 4126 void do_task(const os::SuspendedThreadTaskContext& context); | |
| 4127 private: | |
| 4128 ExtendedPC _epc; | |
| 4129 }; | |
| 4130 | |
| 4131 ExtendedPC PcFetcher::result() { | |
| 4132 guarantee(is_done(), "task is not done yet."); | |
| 4133 return _epc; | |
| 4134 } | |
| 4135 | |
| 4136 void PcFetcher::do_task(const os::SuspendedThreadTaskContext& context) { | |
| 4137 Thread* thread = context.thread(); | |
| 4138 OSThread* osthread = thread->osthread(); | |
| 4139 if (osthread->ucontext() != NULL) { | |
| 4140 _epc = os::Solaris::ucontext_get_pc((ucontext_t *) context.ucontext()); | |
| 4141 } else { | |
| 4142 // NULL context is unexpected, double-check this is the VMThread | |
| 4143 guarantee(thread->is_VM_thread(), "can only be called for VMThread"); | |
| 4144 } | |
| 4145 } | |
| 4146 | |
| 0 | 4147 // A lightweight implementation that does not suspend the target thread and |
| 4148 // thus returns only a hint. Used for profiling only! | |
| 4149 ExtendedPC os::get_thread_pc(Thread* thread) { | |
| 4150 // Make sure that it is called by the watcher and the Threads lock is owned. | |
| 4151 assert(Thread::current()->is_Watcher_thread(), "Must be watcher and own Threads_lock"); | |
| 4152 // For now, is only used to profile the VM Thread | |
| 4153 assert(thread->is_VM_thread(), "Can only be called for VMThread"); | |
| 10405 | 4154 PcFetcher fetcher(thread); |
| 4155 fetcher.run(); | |
| 4156 return fetcher.result(); | |
| 0 | 4157 } |
| 4158 | |
| 4159 | |
| 4160 // This does not do anything on Solaris. This is basically a hook for being | |
| 4161 // able to use structured exception handling (thread-local exception filters) on, e.g., Win32. | |
| 4162 void os::os_exception_wrapper(java_call_t f, JavaValue* value, methodHandle* method, JavaCallArguments* args, Thread* thread) { | |
| 4163 f(value, method, args, thread); | |
| 4164 } | |
| 4165 | |
| 4166 // This routine may be used by user applications as a "hook" to catch signals. | |
| 4167 // The user-defined signal handler must pass unrecognized signals to this | |
| 4168 // routine, and if it returns true (non-zero), then the signal handler must | |
| 4169 // return immediately. If the flag "abort_if_unrecognized" is true, then this | |
| 4170 // routine will never retun false (zero), but instead will execute a VM panic | |
| 4171 // routine kill the process. | |
| 4172 // | |
| 4173 // If this routine returns false, it is OK to call it again. This allows | |
| 4174 // the user-defined signal handler to perform checks either before or after | |
| 4175 // the VM performs its own checks. Naturally, the user code would be making | |
| 4176 // a serious error if it tried to handle an exception (such as a null check | |
| 4177 // or breakpoint) that the VM was generating for its own correct operation. | |
| 4178 // | |
| 4179 // This routine may recognize any of the following kinds of signals: | |
| 4180 // SIGBUS, SIGSEGV, SIGILL, SIGFPE, BREAK_SIGNAL, SIGPIPE, SIGXFSZ, | |
| 4181 // os::Solaris::SIGasync | |
| 4182 // It should be consulted by handlers for any of those signals. | |
| 4183 // It explicitly does not recognize os::Solaris::SIGinterrupt | |
| 4184 // | |
| 4185 // The caller of this routine must pass in the three arguments supplied | |
| 4186 // to the function referred to in the "sa_sigaction" (not the "sa_handler") | |
| 4187 // field of the structure passed to sigaction(). This routine assumes that | |
| 4188 // the sa_flags field passed to sigaction() includes SA_SIGINFO and SA_RESTART. | |
| 4189 // | |
| 4190 // Note that the VM will print warnings if it detects conflicting signal | |
| 4191 // handlers, unless invoked with the option "-XX:+AllowUserSignalHandlers". | |
| 4192 // | |
| 2191 | 4193 extern "C" JNIEXPORT int |
| 4194 JVM_handle_solaris_signal(int signo, siginfo_t* siginfo, void* ucontext, | |
| 4195 int abort_if_unrecognized); | |
| 0 | 4196 |
| 4197 | |
| 4198 void signalHandler(int sig, siginfo_t* info, void* ucVoid) { | |
| 8067 | 4199 int orig_errno = errno; // Preserve errno value over signal handler. |
| 0 | 4200 JVM_handle_solaris_signal(sig, info, ucVoid, true); |
| 8067 | 4201 errno = orig_errno; |
| 0 | 4202 } |
| 4203 | |
| 4204 /* Do not delete - if guarantee is ever removed, a signal handler (even empty) | |
| 4205 is needed to provoke threads blocked on IO to return an EINTR | |
| 4206 Note: this explicitly does NOT call JVM_handle_solaris_signal and | |
| 4207 does NOT participate in signal chaining due to requirement for | |
| 4208 NOT setting SA_RESTART to make EINTR work. */ | |
| 4209 extern "C" void sigINTRHandler(int sig, siginfo_t* info, void* ucVoid) { | |
| 4210 if (UseSignalChaining) { | |
| 4211 struct sigaction *actp = os::Solaris::get_chained_signal_action(sig); | |
| 4212 if (actp && actp->sa_handler) { | |
| 4213 vm_exit_during_initialization("Signal chaining detected for VM interrupt signal, try -XX:+UseAltSigs"); | |
| 4214 } | |
| 4215 } | |
| 4216 } | |
| 4217 | |
| 4218 // This boolean allows users to forward their own non-matching signals | |
| 4219 // to JVM_handle_solaris_signal, harmlessly. | |
| 4220 bool os::Solaris::signal_handlers_are_installed = false; | |
| 4221 | |
| 4222 // For signal-chaining | |
| 4223 bool os::Solaris::libjsig_is_loaded = false; | |
| 4224 typedef struct sigaction *(*get_signal_t)(int); | |
| 4225 get_signal_t os::Solaris::get_signal_action = NULL; | |
| 4226 | |
| 4227 struct sigaction* os::Solaris::get_chained_signal_action(int sig) { | |
| 4228 struct sigaction *actp = NULL; | |
| 4229 | |
| 4230 if ((libjsig_is_loaded) && (sig <= Maxlibjsigsigs)) { | |
| 4231 // Retrieve the old signal handler from libjsig | |
| 4232 actp = (*get_signal_action)(sig); | |
| 4233 } | |
| 4234 if (actp == NULL) { | |
| 4235 // Retrieve the preinstalled signal handler from jvm | |
| 4236 actp = get_preinstalled_handler(sig); | |
| 4237 } | |
| 4238 | |
| 4239 return actp; | |
| 4240 } | |
| 4241 | |
| 4242 static bool call_chained_handler(struct sigaction *actp, int sig, | |
| 4243 siginfo_t *siginfo, void *context) { | |
| 4244 // Call the old signal handler | |
| 4245 if (actp->sa_handler == SIG_DFL) { | |
| 4246 // It's more reasonable to let jvm treat it as an unexpected exception | |
| 4247 // instead of taking the default action. | |
| 4248 return false; | |
| 4249 } else if (actp->sa_handler != SIG_IGN) { | |
| 4250 if ((actp->sa_flags & SA_NODEFER) == 0) { | |
| 4251 // automaticlly block the signal | |
| 4252 sigaddset(&(actp->sa_mask), sig); | |
| 4253 } | |
| 4254 | |
| 4255 sa_handler_t hand; | |
| 4256 sa_sigaction_t sa; | |
| 4257 bool siginfo_flag_set = (actp->sa_flags & SA_SIGINFO) != 0; | |
| 4258 // retrieve the chained handler | |
| 4259 if (siginfo_flag_set) { | |
| 4260 sa = actp->sa_sigaction; | |
| 4261 } else { | |
| 4262 hand = actp->sa_handler; | |
| 4263 } | |
| 4264 | |
| 4265 if ((actp->sa_flags & SA_RESETHAND) != 0) { | |
| 4266 actp->sa_handler = SIG_DFL; | |
| 4267 } | |
| 4268 | |
| 4269 // try to honor the signal mask | |
| 4270 sigset_t oset; | |
| 4271 thr_sigsetmask(SIG_SETMASK, &(actp->sa_mask), &oset); | |
| 4272 | |
| 4273 // call into the chained handler | |
| 4274 if (siginfo_flag_set) { | |
| 4275 (*sa)(sig, siginfo, context); | |
| 4276 } else { | |
| 4277 (*hand)(sig); | |
| 4278 } | |
| 4279 | |
| 4280 // restore the signal mask | |
| 4281 thr_sigsetmask(SIG_SETMASK, &oset, 0); | |
| 4282 } | |
| 4283 // Tell jvm's signal handler the signal is taken care of. | |
| 4284 return true; | |
| 4285 } | |
| 4286 | |
| 4287 bool os::Solaris::chained_handler(int sig, siginfo_t* siginfo, void* context) { | |
| 4288 bool chained = false; | |
| 4289 // signal-chaining | |
| 4290 if (UseSignalChaining) { | |
| 4291 struct sigaction *actp = get_chained_signal_action(sig); | |
| 4292 if (actp != NULL) { | |
| 4293 chained = call_chained_handler(actp, sig, siginfo, context); | |
| 4294 } | |
| 4295 } | |
| 4296 return chained; | |
| 4297 } | |
| 4298 | |
| 4299 struct sigaction* os::Solaris::get_preinstalled_handler(int sig) { | |
| 4300 assert((chainedsigactions != (struct sigaction *)NULL) && (preinstalled_sigs != (int *)NULL) , "signals not yet initialized"); | |
| 4301 if (preinstalled_sigs[sig] != 0) { | |
| 4302 return &chainedsigactions[sig]; | |
| 4303 } | |
| 4304 return NULL; | |
| 4305 } | |
| 4306 | |
| 4307 void os::Solaris::save_preinstalled_handler(int sig, struct sigaction& oldAct) { | |
| 4308 | |
| 4309 assert(sig > 0 && sig <= Maxsignum, "vm signal out of expected range"); | |
| 4310 assert((chainedsigactions != (struct sigaction *)NULL) && (preinstalled_sigs != (int *)NULL) , "signals not yet initialized"); | |
| 4311 chainedsigactions[sig] = oldAct; | |
| 4312 preinstalled_sigs[sig] = 1; | |
| 4313 } | |
| 4314 | |
| 4315 void os::Solaris::set_signal_handler(int sig, bool set_installed, bool oktochain) { | |
| 4316 // Check for overwrite. | |
| 4317 struct sigaction oldAct; | |
| 4318 sigaction(sig, (struct sigaction*)NULL, &oldAct); | |
| 4319 void* oldhand = oldAct.sa_sigaction ? CAST_FROM_FN_PTR(void*, oldAct.sa_sigaction) | |
| 4320 : CAST_FROM_FN_PTR(void*, oldAct.sa_handler); | |
| 4321 if (oldhand != CAST_FROM_FN_PTR(void*, SIG_DFL) && | |
| 4322 oldhand != CAST_FROM_FN_PTR(void*, SIG_IGN) && | |
| 4323 oldhand != CAST_FROM_FN_PTR(void*, signalHandler)) { | |
| 4324 if (AllowUserSignalHandlers || !set_installed) { | |
| 4325 // Do not overwrite; user takes responsibility to forward to us. | |
| 4326 return; | |
| 4327 } else if (UseSignalChaining) { | |
| 4328 if (oktochain) { | |
| 4329 // save the old handler in jvm | |
| 4330 save_preinstalled_handler(sig, oldAct); | |
| 4331 } else { | |
| 4332 vm_exit_during_initialization("Signal chaining not allowed for VM interrupt signal, try -XX:+UseAltSigs."); | |
| 4333 } | |
| 4334 // libjsig also interposes the sigaction() call below and saves the | |
| 4335 // old sigaction on it own. | |
| 4336 } else { | |
|
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|
4337 fatal(err_msg("Encountered unexpected pre-existing sigaction handler " |
|
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|
4338 "%#lx for signal %d.", (long)oldhand, sig)); |
| 0 | 4339 } |
| 4340 } | |
| 4341 | |
| 4342 struct sigaction sigAct; | |
| 4343 sigfillset(&(sigAct.sa_mask)); | |
| 4344 sigAct.sa_handler = SIG_DFL; | |
| 4345 | |
| 4346 sigAct.sa_sigaction = signalHandler; | |
| 4347 // Handle SIGSEGV on alternate signal stack if | |
| 4348 // not using stack banging | |
| 4349 if (!UseStackBanging && sig == SIGSEGV) { | |
| 4350 sigAct.sa_flags = SA_SIGINFO | SA_RESTART | SA_ONSTACK; | |
| 4351 // Interruptible i/o requires SA_RESTART cleared so EINTR | |
| 4352 // is returned instead of restarting system calls | |
| 4353 } else if (sig == os::Solaris::SIGinterrupt()) { | |
| 4354 sigemptyset(&sigAct.sa_mask); | |
| 4355 sigAct.sa_handler = NULL; | |
| 4356 sigAct.sa_flags = SA_SIGINFO; | |
| 4357 sigAct.sa_sigaction = sigINTRHandler; | |
| 4358 } else { | |
| 4359 sigAct.sa_flags = SA_SIGINFO | SA_RESTART; | |
| 4360 } | |
| 4361 os::Solaris::set_our_sigflags(sig, sigAct.sa_flags); | |
| 4362 | |
| 4363 sigaction(sig, &sigAct, &oldAct); | |
| 4364 | |
| 4365 void* oldhand2 = oldAct.sa_sigaction ? CAST_FROM_FN_PTR(void*, oldAct.sa_sigaction) | |
| 4366 : CAST_FROM_FN_PTR(void*, oldAct.sa_handler); | |
| 4367 assert(oldhand2 == oldhand, "no concurrent signal handler installation"); | |
| 4368 } | |
| 4369 | |
| 4370 | |
| 4371 #define DO_SIGNAL_CHECK(sig) \ | |
| 4372 if (!sigismember(&check_signal_done, sig)) \ | |
| 4373 os::Solaris::check_signal_handler(sig) | |
| 4374 | |
| 4375 // This method is a periodic task to check for misbehaving JNI applications | |
| 4376 // under CheckJNI, we can add any periodic checks here | |
| 4377 | |
| 4378 void os::run_periodic_checks() { | |
| 4379 // A big source of grief is hijacking virt. addr 0x0 on Solaris, | |
| 4380 // thereby preventing a NULL checks. | |
| 4381 if(!check_addr0_done) check_addr0_done = check_addr0(tty); | |
| 4382 | |
| 4383 if (check_signals == false) return; | |
| 4384 | |
| 4385 // SEGV and BUS if overridden could potentially prevent | |
| 4386 // generation of hs*.log in the event of a crash, debugging | |
| 4387 // such a case can be very challenging, so we absolutely | |
| 4388 // check for the following for a good measure: | |
| 4389 DO_SIGNAL_CHECK(SIGSEGV); | |
| 4390 DO_SIGNAL_CHECK(SIGILL); | |
| 4391 DO_SIGNAL_CHECK(SIGFPE); | |
| 4392 DO_SIGNAL_CHECK(SIGBUS); | |
| 4393 DO_SIGNAL_CHECK(SIGPIPE); | |
| 4394 DO_SIGNAL_CHECK(SIGXFSZ); | |
| 4395 | |
| 4396 // ReduceSignalUsage allows the user to override these handlers | |
| 4397 // see comments at the very top and jvm_solaris.h | |
| 4398 if (!ReduceSignalUsage) { | |
| 4399 DO_SIGNAL_CHECK(SHUTDOWN1_SIGNAL); | |
| 4400 DO_SIGNAL_CHECK(SHUTDOWN2_SIGNAL); | |
| 4401 DO_SIGNAL_CHECK(SHUTDOWN3_SIGNAL); | |
| 4402 DO_SIGNAL_CHECK(BREAK_SIGNAL); | |
| 4403 } | |
| 4404 | |
| 4405 // See comments above for using JVM1/JVM2 and UseAltSigs | |
| 4406 DO_SIGNAL_CHECK(os::Solaris::SIGinterrupt()); | |
| 4407 DO_SIGNAL_CHECK(os::Solaris::SIGasync()); | |
| 4408 | |
| 4409 } | |
| 4410 | |
| 4411 typedef int (*os_sigaction_t)(int, const struct sigaction *, struct sigaction *); | |
| 4412 | |
| 4413 static os_sigaction_t os_sigaction = NULL; | |
| 4414 | |
| 4415 void os::Solaris::check_signal_handler(int sig) { | |
| 4416 char buf[O_BUFLEN]; | |
| 4417 address jvmHandler = NULL; | |
| 4418 | |
| 4419 struct sigaction act; | |
| 4420 if (os_sigaction == NULL) { | |
| 4421 // only trust the default sigaction, in case it has been interposed | |
| 4422 os_sigaction = (os_sigaction_t)dlsym(RTLD_DEFAULT, "sigaction"); | |
| 4423 if (os_sigaction == NULL) return; | |
| 4424 } | |
| 4425 | |
| 4426 os_sigaction(sig, (struct sigaction*)NULL, &act); | |
| 4427 | |
| 4428 address thisHandler = (act.sa_flags & SA_SIGINFO) | |
| 4429 ? CAST_FROM_FN_PTR(address, act.sa_sigaction) | |
| 4430 : CAST_FROM_FN_PTR(address, act.sa_handler) ; | |
| 4431 | |
| 4432 | |
| 4433 switch(sig) { | |
| 4434 case SIGSEGV: | |
| 4435 case SIGBUS: | |
| 4436 case SIGFPE: | |
| 4437 case SIGPIPE: | |
| 4438 case SIGXFSZ: | |
| 4439 case SIGILL: | |
| 4440 jvmHandler = CAST_FROM_FN_PTR(address, signalHandler); | |
| 4441 break; | |
| 4442 | |
| 4443 case SHUTDOWN1_SIGNAL: | |
| 4444 case SHUTDOWN2_SIGNAL: | |
| 4445 case SHUTDOWN3_SIGNAL: | |
| 4446 case BREAK_SIGNAL: | |
| 4447 jvmHandler = (address)user_handler(); | |
| 4448 break; | |
| 4449 | |
| 4450 default: | |
| 4451 int intrsig = os::Solaris::SIGinterrupt(); | |
| 4452 int asynsig = os::Solaris::SIGasync(); | |
| 4453 | |
| 4454 if (sig == intrsig) { | |
| 4455 jvmHandler = CAST_FROM_FN_PTR(address, sigINTRHandler); | |
| 4456 } else if (sig == asynsig) { | |
| 4457 jvmHandler = CAST_FROM_FN_PTR(address, signalHandler); | |
| 4458 } else { | |
| 4459 return; | |
| 4460 } | |
| 4461 break; | |
| 4462 } | |
| 4463 | |
| 4464 | |
| 4465 if (thisHandler != jvmHandler) { | |
| 4466 tty->print("Warning: %s handler ", exception_name(sig, buf, O_BUFLEN)); | |
| 4467 tty->print("expected:%s", get_signal_handler_name(jvmHandler, buf, O_BUFLEN)); | |
| 4468 tty->print_cr(" found:%s", get_signal_handler_name(thisHandler, buf, O_BUFLEN)); | |
| 4469 // No need to check this sig any longer | |
| 4470 sigaddset(&check_signal_done, sig); | |
|
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|
4471 // Running under non-interactive shell, SHUTDOWN2_SIGNAL will be reassigned SIG_IGN |
|
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|
4472 if (sig == SHUTDOWN2_SIGNAL && !isatty(fileno(stdin))) { |
|
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|
4473 tty->print_cr("Running in non-interactive shell, %s handler is replaced by shell", |
|
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|
4474 exception_name(sig, buf, O_BUFLEN)); |
|
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|
4475 } |
| 0 | 4476 } else if(os::Solaris::get_our_sigflags(sig) != 0 && act.sa_flags != os::Solaris::get_our_sigflags(sig)) { |
| 4477 tty->print("Warning: %s handler flags ", exception_name(sig, buf, O_BUFLEN)); | |
| 4478 tty->print("expected:" PTR32_FORMAT, os::Solaris::get_our_sigflags(sig)); | |
| 4479 tty->print_cr(" found:" PTR32_FORMAT, act.sa_flags); | |
| 4480 // No need to check this sig any longer | |
| 4481 sigaddset(&check_signal_done, sig); | |
| 4482 } | |
| 4483 | |
| 4484 // Print all the signal handler state | |
| 4485 if (sigismember(&check_signal_done, sig)) { | |
| 4486 print_signal_handlers(tty, buf, O_BUFLEN); | |
| 4487 } | |
| 4488 | |
| 4489 } | |
| 4490 | |
| 4491 void os::Solaris::install_signal_handlers() { | |
| 4492 bool libjsigdone = false; | |
| 4493 signal_handlers_are_installed = true; | |
| 4494 | |
| 4495 // signal-chaining | |
| 4496 typedef void (*signal_setting_t)(); | |
| 4497 signal_setting_t begin_signal_setting = NULL; | |
| 4498 signal_setting_t end_signal_setting = NULL; | |
| 4499 begin_signal_setting = CAST_TO_FN_PTR(signal_setting_t, | |
| 4500 dlsym(RTLD_DEFAULT, "JVM_begin_signal_setting")); | |
| 4501 if (begin_signal_setting != NULL) { | |
| 4502 end_signal_setting = CAST_TO_FN_PTR(signal_setting_t, | |
| 4503 dlsym(RTLD_DEFAULT, "JVM_end_signal_setting")); | |
| 4504 get_signal_action = CAST_TO_FN_PTR(get_signal_t, | |
| 4505 dlsym(RTLD_DEFAULT, "JVM_get_signal_action")); | |
| 4506 get_libjsig_version = CAST_TO_FN_PTR(version_getting_t, | |
| 4507 dlsym(RTLD_DEFAULT, "JVM_get_libjsig_version")); | |
| 4508 libjsig_is_loaded = true; | |
| 4509 if (os::Solaris::get_libjsig_version != NULL) { | |
| 4510 libjsigversion = (*os::Solaris::get_libjsig_version)(); | |
| 4511 } | |
| 4512 assert(UseSignalChaining, "should enable signal-chaining"); | |
| 4513 } | |
| 4514 if (libjsig_is_loaded) { | |
| 4515 // Tell libjsig jvm is setting signal handlers | |
| 4516 (*begin_signal_setting)(); | |
| 4517 } | |
| 4518 | |
| 4519 set_signal_handler(SIGSEGV, true, true); | |
| 4520 set_signal_handler(SIGPIPE, true, true); | |
| 4521 set_signal_handler(SIGXFSZ, true, true); | |
| 4522 set_signal_handler(SIGBUS, true, true); | |
| 4523 set_signal_handler(SIGILL, true, true); | |
| 4524 set_signal_handler(SIGFPE, true, true); | |
| 4525 | |
| 4526 | |
| 4527 if (os::Solaris::SIGinterrupt() > OLDMAXSIGNUM || os::Solaris::SIGasync() > OLDMAXSIGNUM) { | |
| 4528 | |
| 4529 // Pre-1.4.1 Libjsig limited to signal chaining signals <= 32 so | |
| 4530 // can not register overridable signals which might be > 32 | |
| 4531 if (libjsig_is_loaded && libjsigversion <= JSIG_VERSION_1_4_1) { | |
| 4532 // Tell libjsig jvm has finished setting signal handlers | |
| 4533 (*end_signal_setting)(); | |
| 4534 libjsigdone = true; | |
| 4535 } | |
| 4536 } | |
| 4537 | |
| 4538 // Never ok to chain our SIGinterrupt | |
| 4539 set_signal_handler(os::Solaris::SIGinterrupt(), true, false); | |
| 4540 set_signal_handler(os::Solaris::SIGasync(), true, true); | |
| 4541 | |
| 4542 if (libjsig_is_loaded && !libjsigdone) { | |
| 4543 // Tell libjsig jvm finishes setting signal handlers | |
| 4544 (*end_signal_setting)(); | |
| 4545 } | |
| 4546 | |
| 4547 // We don't activate signal checker if libjsig is in place, we trust ourselves | |
|
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|
4548 // and if UserSignalHandler is installed all bets are off. |
|
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changeset
|
4549 // Log that signal checking is off only if -verbose:jni is specified. |
| 0 | 4550 if (CheckJNICalls) { |
| 4551 if (libjsig_is_loaded) { | |
|
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|
4552 if (PrintJNIResolving) { |
|
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|
4553 tty->print_cr("Info: libjsig is activated, all active signal checking is disabled"); |
|
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|
4554 } |
| 0 | 4555 check_signals = false; |
| 4556 } | |
| 4557 if (AllowUserSignalHandlers) { | |
|
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|
4558 if (PrintJNIResolving) { |
|
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changeset
|
4559 tty->print_cr("Info: AllowUserSignalHandlers is activated, all active signal checking is disabled"); |
|
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|
4560 } |
| 0 | 4561 check_signals = false; |
| 4562 } | |
| 4563 } | |
| 4564 } | |
| 4565 | |
| 4566 | |
| 4567 void report_error(const char* file_name, int line_no, const char* title, const char* format, ...); | |
| 4568 | |
| 4569 const char * signames[] = { | |
| 4570 "SIG0", | |
| 4571 "SIGHUP", "SIGINT", "SIGQUIT", "SIGILL", "SIGTRAP", | |
| 4572 "SIGABRT", "SIGEMT", "SIGFPE", "SIGKILL", "SIGBUS", | |
| 4573 "SIGSEGV", "SIGSYS", "SIGPIPE", "SIGALRM", "SIGTERM", | |
| 4574 "SIGUSR1", "SIGUSR2", "SIGCLD", "SIGPWR", "SIGWINCH", | |
| 4575 "SIGURG", "SIGPOLL", "SIGSTOP", "SIGTSTP", "SIGCONT", | |
| 4576 "SIGTTIN", "SIGTTOU", "SIGVTALRM", "SIGPROF", "SIGXCPU", | |
| 4577 "SIGXFSZ", "SIGWAITING", "SIGLWP", "SIGFREEZE", "SIGTHAW", | |
| 4578 "SIGCANCEL", "SIGLOST" | |
| 4579 }; | |
| 4580 | |
| 4581 const char* os::exception_name(int exception_code, char* buf, size_t size) { | |
| 4582 if (0 < exception_code && exception_code <= SIGRTMAX) { | |
| 4583 // signal | |
| 4584 if (exception_code < sizeof(signames)/sizeof(const char*)) { | |
| 4585 jio_snprintf(buf, size, "%s", signames[exception_code]); | |
| 4586 } else { | |
| 4587 jio_snprintf(buf, size, "SIG%d", exception_code); | |
| 4588 } | |
| 4589 return buf; | |
| 4590 } else { | |
| 4591 return NULL; | |
| 4592 } | |
| 4593 } | |
| 4594 | |
| 4595 // (Static) wrappers for the new libthread API | |
| 4596 int_fnP_thread_t_iP_uP_stack_tP_gregset_t os::Solaris::_thr_getstate; | |
| 4597 int_fnP_thread_t_i_gregset_t os::Solaris::_thr_setstate; | |
| 4598 int_fnP_thread_t_i os::Solaris::_thr_setmutator; | |
| 4599 int_fnP_thread_t os::Solaris::_thr_suspend_mutator; | |
| 4600 int_fnP_thread_t os::Solaris::_thr_continue_mutator; | |
| 4601 | |
|
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|
4602 // (Static) wrapper for getisax(2) call. |
|
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|
4603 os::Solaris::getisax_func_t os::Solaris::_getisax = 0; |
|
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|
4604 |
| 0 | 4605 // (Static) wrappers for the liblgrp API |
| 4606 os::Solaris::lgrp_home_func_t os::Solaris::_lgrp_home; | |
| 4607 os::Solaris::lgrp_init_func_t os::Solaris::_lgrp_init; | |
| 4608 os::Solaris::lgrp_fini_func_t os::Solaris::_lgrp_fini; | |
| 4609 os::Solaris::lgrp_root_func_t os::Solaris::_lgrp_root; | |
| 4610 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
|
4611 os::Solaris::lgrp_resources_func_t os::Solaris::_lgrp_resources; |
| 0 | 4612 os::Solaris::lgrp_nlgrps_func_t os::Solaris::_lgrp_nlgrps; |
| 4613 os::Solaris::lgrp_cookie_stale_func_t os::Solaris::_lgrp_cookie_stale; | |
| 4614 os::Solaris::lgrp_cookie_t os::Solaris::_lgrp_cookie = 0; | |
| 4615 | |
| 4616 // (Static) wrapper for meminfo() call. | |
| 4617 os::Solaris::meminfo_func_t os::Solaris::_meminfo = 0; | |
| 4618 | |
|
641
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
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parents:
548
diff
changeset
|
4619 static address resolve_symbol_lazy(const char* name) { |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4620 address addr = (address) dlsym(RTLD_DEFAULT, name); |
| 0 | 4621 if(addr == NULL) { |
| 4622 // RTLD_DEFAULT was not defined on some early versions of 2.5.1 | |
| 4623 addr = (address) dlsym(RTLD_NEXT, name); | |
|
641
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4624 } |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4625 return addr; |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4626 } |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4627 |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4628 static address resolve_symbol(const char* name) { |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4629 address addr = resolve_symbol_lazy(name); |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4630 if(addr == NULL) { |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4631 fatal(dlerror()); |
| 0 | 4632 } |
| 4633 return addr; | |
| 4634 } | |
| 4635 | |
| 4636 | |
| 4637 | |
| 4638 // isT2_libthread() | |
| 4639 // | |
| 4640 // Routine to determine if we are currently using the new T2 libthread. | |
| 4641 // | |
| 4642 // We determine if we are using T2 by reading /proc/self/lstatus and | |
| 4643 // looking for a thread with the ASLWP bit set. If we find this status | |
| 4644 // bit set, we must assume that we are NOT using T2. The T2 team | |
| 4645 // has approved this algorithm. | |
| 4646 // | |
| 4647 // We need to determine if we are running with the new T2 libthread | |
| 4648 // since setting native thread priorities is handled differently | |
| 4649 // when using this library. All threads created using T2 are bound | |
| 4650 // threads. Calling thr_setprio is meaningless in this case. | |
| 4651 // | |
| 4652 bool isT2_libthread() { | |
| 4653 static prheader_t * lwpArray = NULL; | |
| 4654 static int lwpSize = 0; | |
| 4655 static int lwpFile = -1; | |
| 4656 lwpstatus_t * that; | |
| 4657 char lwpName [128]; | |
| 4658 bool isT2 = false; | |
| 4659 | |
| 4660 #define ADR(x) ((uintptr_t)(x)) | |
| 4661 #define LWPINDEX(ary,ix) ((lwpstatus_t *)(((ary)->pr_entsize * (ix)) + (ADR((ary) + 1)))) | |
| 4662 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4663 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
|
4664 if (lwpFile < 0) { |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4665 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
|
4666 return false; |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4667 } |
| 0 | 4668 lwpSize = 16*1024; |
| 4669 for (;;) { | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4670 ::lseek64 (lwpFile, 0, SEEK_SET); |
| 6197 | 4671 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
|
4672 if (::read(lwpFile, lwpArray, lwpSize) < 0) { |
|
89
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4673 if (ThreadPriorityVerbose) warning("Error reading /proc/self/lstatus\n"); |
| 0 | 4674 break; |
| 4675 } | |
|
89
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4676 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
|
4677 // 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
|
4678 int aslwpcount = 0; |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4679 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
|
4680 that = LWPINDEX(lwpArray,i); |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4681 if (that->pr_flags & PR_ASLWP) { |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4682 aslwpcount++; |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4683 } |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4684 } |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4685 if (aslwpcount == 0) isT2 = true; |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4686 break; |
| 0 | 4687 } |
|
89
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4688 lwpSize = lwpArray->pr_nent * lwpArray->pr_entsize; |
| 6197 | 4689 FREE_C_HEAP_ARRAY(char, lwpArray, mtInternal); // retry. |
| 4690 } | |
| 4691 | |
| 4692 FREE_C_HEAP_ARRAY(char, lwpArray, mtInternal); | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4693 ::close (lwpFile); |
|
89
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4694 if (ThreadPriorityVerbose) { |
|
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4695 if (isT2) tty->print_cr("We are running with a T2 libthread\n"); |
| 0 | 4696 else tty->print_cr("We are not running with a T2 libthread\n"); |
| 4697 } | |
|
89
b97de546208e
6671882: memory access after free in solaris/vm/os_solaris.cpp
xlu
parents:
79
diff
changeset
|
4698 return isT2; |
| 0 | 4699 } |
| 4700 | |
| 4701 | |
| 4702 void os::Solaris::libthread_init() { | |
| 4703 address func = (address)dlsym(RTLD_DEFAULT, "_thr_suspend_allmutators"); | |
| 4704 | |
| 4705 // Determine if we are running with the new T2 libthread | |
| 4706 os::Solaris::set_T2_libthread(isT2_libthread()); | |
| 4707 | |
| 4708 lwp_priocntl_init(); | |
| 4709 | |
| 4710 // RTLD_DEFAULT was not defined on some early versions of 5.5.1 | |
| 4711 if(func == NULL) { | |
| 4712 func = (address) dlsym(RTLD_NEXT, "_thr_suspend_allmutators"); | |
| 4713 // Guarantee that this VM is running on an new enough OS (5.6 or | |
| 4714 // later) that it will have a new enough libthread.so. | |
| 4715 guarantee(func != NULL, "libthread.so is too old."); | |
| 4716 } | |
| 4717 | |
| 4718 // Initialize the new libthread getstate API wrappers | |
| 4719 func = resolve_symbol("thr_getstate"); | |
| 4720 os::Solaris::set_thr_getstate(CAST_TO_FN_PTR(int_fnP_thread_t_iP_uP_stack_tP_gregset_t, func)); | |
| 4721 | |
| 4722 func = resolve_symbol("thr_setstate"); | |
| 4723 os::Solaris::set_thr_setstate(CAST_TO_FN_PTR(int_fnP_thread_t_i_gregset_t, func)); | |
| 4724 | |
| 4725 func = resolve_symbol("thr_setmutator"); | |
| 4726 os::Solaris::set_thr_setmutator(CAST_TO_FN_PTR(int_fnP_thread_t_i, func)); | |
| 4727 | |
| 4728 func = resolve_symbol("thr_suspend_mutator"); | |
| 4729 os::Solaris::set_thr_suspend_mutator(CAST_TO_FN_PTR(int_fnP_thread_t, func)); | |
| 4730 | |
| 4731 func = resolve_symbol("thr_continue_mutator"); | |
| 4732 os::Solaris::set_thr_continue_mutator(CAST_TO_FN_PTR(int_fnP_thread_t, func)); | |
| 4733 | |
| 4734 int size; | |
| 4735 void (*handler_info_func)(address *, int *); | |
| 4736 handler_info_func = CAST_TO_FN_PTR(void (*)(address *, int *), resolve_symbol("thr_sighndlrinfo")); | |
| 4737 handler_info_func(&handler_start, &size); | |
| 4738 handler_end = handler_start + size; | |
| 4739 } | |
| 4740 | |
| 4741 | |
| 4742 int_fnP_mutex_tP os::Solaris::_mutex_lock; | |
| 4743 int_fnP_mutex_tP os::Solaris::_mutex_trylock; | |
| 4744 int_fnP_mutex_tP os::Solaris::_mutex_unlock; | |
| 4745 int_fnP_mutex_tP_i_vP os::Solaris::_mutex_init; | |
| 4746 int_fnP_mutex_tP os::Solaris::_mutex_destroy; | |
| 4747 int os::Solaris::_mutex_scope = USYNC_THREAD; | |
| 4748 | |
| 4749 int_fnP_cond_tP_mutex_tP_timestruc_tP os::Solaris::_cond_timedwait; | |
| 4750 int_fnP_cond_tP_mutex_tP os::Solaris::_cond_wait; | |
| 4751 int_fnP_cond_tP os::Solaris::_cond_signal; | |
| 4752 int_fnP_cond_tP os::Solaris::_cond_broadcast; | |
| 4753 int_fnP_cond_tP_i_vP os::Solaris::_cond_init; | |
| 4754 int_fnP_cond_tP os::Solaris::_cond_destroy; | |
| 4755 int os::Solaris::_cond_scope = USYNC_THREAD; | |
| 4756 | |
| 4757 void os::Solaris::synchronization_init() { | |
| 4758 if(UseLWPSynchronization) { | |
| 4759 os::Solaris::set_mutex_lock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("_lwp_mutex_lock"))); | |
| 4760 os::Solaris::set_mutex_trylock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("_lwp_mutex_trylock"))); | |
| 4761 os::Solaris::set_mutex_unlock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("_lwp_mutex_unlock"))); | |
| 4762 os::Solaris::set_mutex_init(lwp_mutex_init); | |
| 4763 os::Solaris::set_mutex_destroy(lwp_mutex_destroy); | |
| 4764 os::Solaris::set_mutex_scope(USYNC_THREAD); | |
| 4765 | |
| 4766 os::Solaris::set_cond_timedwait(CAST_TO_FN_PTR(int_fnP_cond_tP_mutex_tP_timestruc_tP, resolve_symbol("_lwp_cond_timedwait"))); | |
| 4767 os::Solaris::set_cond_wait(CAST_TO_FN_PTR(int_fnP_cond_tP_mutex_tP, resolve_symbol("_lwp_cond_wait"))); | |
| 4768 os::Solaris::set_cond_signal(CAST_TO_FN_PTR(int_fnP_cond_tP, resolve_symbol("_lwp_cond_signal"))); | |
| 4769 os::Solaris::set_cond_broadcast(CAST_TO_FN_PTR(int_fnP_cond_tP, resolve_symbol("_lwp_cond_broadcast"))); | |
| 4770 os::Solaris::set_cond_init(lwp_cond_init); | |
| 4771 os::Solaris::set_cond_destroy(lwp_cond_destroy); | |
| 4772 os::Solaris::set_cond_scope(USYNC_THREAD); | |
| 4773 } | |
| 4774 else { | |
| 4775 os::Solaris::set_mutex_scope(USYNC_THREAD); | |
| 4776 os::Solaris::set_cond_scope(USYNC_THREAD); | |
| 4777 | |
| 4778 if(UsePthreads) { | |
| 4779 os::Solaris::set_mutex_lock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("pthread_mutex_lock"))); | |
| 4780 os::Solaris::set_mutex_trylock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("pthread_mutex_trylock"))); | |
| 4781 os::Solaris::set_mutex_unlock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("pthread_mutex_unlock"))); | |
| 4782 os::Solaris::set_mutex_init(pthread_mutex_default_init); | |
| 4783 os::Solaris::set_mutex_destroy(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("pthread_mutex_destroy"))); | |
| 4784 | |
| 4785 os::Solaris::set_cond_timedwait(CAST_TO_FN_PTR(int_fnP_cond_tP_mutex_tP_timestruc_tP, resolve_symbol("pthread_cond_timedwait"))); | |
| 4786 os::Solaris::set_cond_wait(CAST_TO_FN_PTR(int_fnP_cond_tP_mutex_tP, resolve_symbol("pthread_cond_wait"))); | |
| 4787 os::Solaris::set_cond_signal(CAST_TO_FN_PTR(int_fnP_cond_tP, resolve_symbol("pthread_cond_signal"))); | |
| 4788 os::Solaris::set_cond_broadcast(CAST_TO_FN_PTR(int_fnP_cond_tP, resolve_symbol("pthread_cond_broadcast"))); | |
| 4789 os::Solaris::set_cond_init(pthread_cond_default_init); | |
| 4790 os::Solaris::set_cond_destroy(CAST_TO_FN_PTR(int_fnP_cond_tP, resolve_symbol("pthread_cond_destroy"))); | |
| 4791 } | |
| 4792 else { | |
| 4793 os::Solaris::set_mutex_lock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("mutex_lock"))); | |
| 4794 os::Solaris::set_mutex_trylock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("mutex_trylock"))); | |
| 4795 os::Solaris::set_mutex_unlock(CAST_TO_FN_PTR(int_fnP_mutex_tP, resolve_symbol("mutex_unlock"))); | |
| 4796 os::Solaris::set_mutex_init(::mutex_init); | |
| 4797 os::Solaris::set_mutex_destroy(::mutex_destroy); | |
| 4798 | |
| 4799 os::Solaris::set_cond_timedwait(CAST_TO_FN_PTR(int_fnP_cond_tP_mutex_tP_timestruc_tP, resolve_symbol("cond_timedwait"))); | |
| 4800 os::Solaris::set_cond_wait(CAST_TO_FN_PTR(int_fnP_cond_tP_mutex_tP, resolve_symbol("cond_wait"))); | |
| 4801 os::Solaris::set_cond_signal(CAST_TO_FN_PTR(int_fnP_cond_tP, resolve_symbol("cond_signal"))); | |
| 4802 os::Solaris::set_cond_broadcast(CAST_TO_FN_PTR(int_fnP_cond_tP, resolve_symbol("cond_broadcast"))); | |
| 4803 os::Solaris::set_cond_init(::cond_init); | |
| 4804 os::Solaris::set_cond_destroy(::cond_destroy); | |
| 4805 } | |
| 4806 } | |
| 4807 } | |
| 4808 | |
|
462
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
4809 bool os::Solaris::liblgrp_init() { |
|
267
9d6a3a6891f8
6720130: NUMA allocator: The linux version should search for libnuma.so.1
iveresov
parents:
144
diff
changeset
|
4810 void *handle = dlopen("liblgrp.so.1", RTLD_LAZY); |
| 0 | 4811 if (handle != NULL) { |
| 4812 os::Solaris::set_lgrp_home(CAST_TO_FN_PTR(lgrp_home_func_t, dlsym(handle, "lgrp_home"))); | |
| 4813 os::Solaris::set_lgrp_init(CAST_TO_FN_PTR(lgrp_init_func_t, dlsym(handle, "lgrp_init"))); | |
| 4814 os::Solaris::set_lgrp_fini(CAST_TO_FN_PTR(lgrp_fini_func_t, dlsym(handle, "lgrp_fini"))); | |
| 4815 os::Solaris::set_lgrp_root(CAST_TO_FN_PTR(lgrp_root_func_t, dlsym(handle, "lgrp_root"))); | |
| 4816 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
|
4817 os::Solaris::set_lgrp_resources(CAST_TO_FN_PTR(lgrp_resources_func_t, dlsym(handle, "lgrp_resources"))); |
| 0 | 4818 os::Solaris::set_lgrp_nlgrps(CAST_TO_FN_PTR(lgrp_nlgrps_func_t, dlsym(handle, "lgrp_nlgrps"))); |
| 4819 os::Solaris::set_lgrp_cookie_stale(CAST_TO_FN_PTR(lgrp_cookie_stale_func_t, | |
| 4820 dlsym(handle, "lgrp_cookie_stale"))); | |
| 4821 | |
| 4822 lgrp_cookie_t c = lgrp_init(LGRP_VIEW_CALLER); | |
| 4823 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
|
4824 return true; |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
4825 } |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
4826 return false; |
| 0 | 4827 } |
| 4828 | |
| 4829 void os::Solaris::misc_sym_init() { | |
|
641
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4830 address func; |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4831 |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4832 // getisax |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4833 func = resolve_symbol_lazy("getisax"); |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4834 if (func != NULL) { |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4835 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
|
4836 } |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4837 |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4838 // meminfo |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
twisti
parents:
548
diff
changeset
|
4839 func = resolve_symbol_lazy("meminfo"); |
| 0 | 4840 if (func != NULL) { |
| 4841 os::Solaris::set_meminfo(CAST_TO_FN_PTR(meminfo_func_t, func)); | |
| 4842 } | |
| 4843 } | |
| 4844 | |
|
641
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6812587: Use auxv to determine SPARC hardware features on Solaris
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diff
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|
4845 uint_t os::Solaris::getisax(uint32_t* array, uint_t n) { |
|
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6812587: Use auxv to determine SPARC hardware features on Solaris
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diff
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|
4846 assert(_getisax != NULL, "_getisax not set"); |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
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diff
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|
4847 return _getisax(array, n); |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
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diff
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|
4848 } |
|
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6812587: Use auxv to determine SPARC hardware features on Solaris
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diff
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|
4849 |
| 0 | 4850 // int pset_getloadavg(psetid_t pset, double loadavg[], int nelem); |
| 4851 typedef long (*pset_getloadavg_type)(psetid_t pset, double loadavg[], int nelem); | |
| 4852 static pset_getloadavg_type pset_getloadavg_ptr = NULL; | |
| 4853 | |
| 4854 void init_pset_getloadavg_ptr(void) { | |
| 4855 pset_getloadavg_ptr = | |
| 4856 (pset_getloadavg_type)dlsym(RTLD_DEFAULT, "pset_getloadavg"); | |
| 4857 if (PrintMiscellaneous && Verbose && pset_getloadavg_ptr == NULL) { | |
| 4858 warning("pset_getloadavg function not found"); | |
| 4859 } | |
| 4860 } | |
| 4861 | |
| 4862 int os::Solaris::_dev_zero_fd = -1; | |
| 4863 | |
| 4864 // this is called _before_ the global arguments have been parsed | |
| 4865 void os::init(void) { | |
| 4866 _initial_pid = getpid(); | |
| 4867 | |
| 4868 max_hrtime = first_hrtime = gethrtime(); | |
| 4869 | |
| 4870 init_random(1234567); | |
| 4871 | |
| 4872 page_size = sysconf(_SC_PAGESIZE); | |
| 4873 if (page_size == -1) | |
|
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
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1353
diff
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|
4874 fatal(err_msg("os_solaris.cpp: os::init: sysconf failed (%s)", |
|
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
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1353
diff
changeset
|
4875 strerror(errno))); |
| 0 | 4876 init_page_sizes((size_t) page_size); |
| 4877 | |
| 4878 Solaris::initialize_system_info(); | |
| 4879 | |
|
641
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|
4880 // Initialize misc. symbols as soon as possible, so we can use them |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
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548
diff
changeset
|
4881 // if we need them. |
|
6af0a709d52b
6812587: Use auxv to determine SPARC hardware features on Solaris
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548
diff
changeset
|
4882 Solaris::misc_sym_init(); |
|
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6812587: Use auxv to determine SPARC hardware features on Solaris
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|
4883 |
|
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diff
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|
4884 int fd = ::open("/dev/zero", O_RDWR); |
| 0 | 4885 if (fd < 0) { |
|
1490
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|
4886 fatal(err_msg("os::init: cannot open /dev/zero (%s)", strerror(errno))); |
| 0 | 4887 } else { |
| 4888 Solaris::set_dev_zero_fd(fd); | |
| 4889 | |
| 4890 // Close on exec, child won't inherit. | |
| 4891 fcntl(fd, F_SETFD, FD_CLOEXEC); | |
| 4892 } | |
| 4893 | |
| 4894 clock_tics_per_sec = CLK_TCK; | |
| 4895 | |
| 4896 // check if dladdr1() exists; dladdr1 can provide more information than | |
| 4897 // dladdr for os::dll_address_to_function_name. It comes with SunOS 5.9 | |
| 4898 // and is available on linker patches for 5.7 and 5.8. | |
| 4899 // libdl.so must have been loaded, this call is just an entry lookup | |
| 4900 void * hdl = dlopen("libdl.so", RTLD_NOW); | |
| 4901 if (hdl) | |
| 4902 dladdr1_func = CAST_TO_FN_PTR(dladdr1_func_type, dlsym(hdl, "dladdr1")); | |
| 4903 | |
| 4904 // (Solaris only) this switches to calls that actually do locking. | |
| 4905 ThreadCritical::initialize(); | |
| 4906 | |
| 4907 main_thread = thr_self(); | |
| 4908 | |
| 4909 // Constant minimum stack size allowed. It must be at least | |
| 4910 // the minimum of what the OS supports (thr_min_stack()), and | |
| 4911 // enough to allow the thread to get to user bytecode execution. | |
| 4912 Solaris::min_stack_allowed = MAX2(thr_min_stack(), Solaris::min_stack_allowed); | |
| 4913 // If the pagesize of the VM is greater than 8K determine the appropriate | |
| 4914 // number of initial guard pages. The user can change this with the | |
| 4915 // command line arguments, if needed. | |
| 4916 if (vm_page_size() > 8*K) { | |
| 4917 StackYellowPages = 1; | |
| 4918 StackRedPages = 1; | |
| 4919 StackShadowPages = round_to((StackShadowPages*8*K), vm_page_size()) / vm_page_size(); | |
| 4920 } | |
| 4921 } | |
| 4922 | |
| 4923 // To install functions for atexit system call | |
| 4924 extern "C" { | |
| 4925 static void perfMemory_exit_helper() { | |
| 4926 perfMemory_exit(); | |
| 4927 } | |
| 4928 } | |
| 4929 | |
| 4930 // this is called _after_ the global arguments have been parsed | |
| 4931 jint os::init_2(void) { | |
| 4932 // try to enable extended file IO ASAP, see 6431278 | |
| 4933 os::Solaris::try_enable_extended_io(); | |
| 4934 | |
| 4935 // Allocate a single page and mark it as readable for safepoint polling. Also | |
| 4936 // use this first mmap call to check support for MAP_ALIGN. | |
| 4937 address polling_page = (address)Solaris::mmap_chunk((char*)page_size, | |
| 4938 page_size, | |
| 4939 MAP_PRIVATE | MAP_ALIGN, | |
| 4940 PROT_READ); | |
| 4941 if (polling_page == NULL) { | |
| 4942 has_map_align = false; | |
| 4943 polling_page = (address)Solaris::mmap_chunk(NULL, page_size, MAP_PRIVATE, | |
| 4944 PROT_READ); | |
| 4945 } | |
| 4946 | |
| 4947 os::set_polling_page(polling_page); | |
| 4948 | |
| 4949 #ifndef PRODUCT | |
| 4950 if( Verbose && PrintMiscellaneous ) | |
| 4951 tty->print("[SafePoint Polling address: " INTPTR_FORMAT "]\n", (intptr_t)polling_page); | |
| 4952 #endif | |
| 4953 | |
| 4954 if (!UseMembar) { | |
| 4955 address mem_serialize_page = (address)Solaris::mmap_chunk( NULL, page_size, MAP_PRIVATE, PROT_READ | PROT_WRITE ); | |
| 4956 guarantee( mem_serialize_page != NULL, "mmap Failed for memory serialize page"); | |
| 4957 os::set_memory_serialize_page( mem_serialize_page ); | |
| 4958 | |
| 4959 #ifndef PRODUCT | |
| 4960 if(Verbose && PrintMiscellaneous) | |
| 4961 tty->print("[Memory Serialize Page address: " INTPTR_FORMAT "]\n", (intptr_t)mem_serialize_page); | |
| 4962 #endif | |
|
12233
40136aa2cdb1
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12110
diff
changeset
|
4963 } |
| 0 | 4964 |
| 4965 // Check minimum allowable stack size for thread creation and to initialize | |
| 4966 // the java system classes, including StackOverflowError - depends on page | |
| 4967 // size. Add a page for compiler2 recursion in main thread. | |
|
1867
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coleenp
parents:
1865
diff
changeset
|
4968 // Add in 2*BytesPerWord times page size to account for VM stack during |
| 0 | 4969 // class initialization depending on 32 or 64 bit VM. |
|
1867
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
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1865
diff
changeset
|
4970 os::Solaris::min_stack_allowed = MAX2(os::Solaris::min_stack_allowed, |
|
b6aedd1acdc0
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1865
diff
changeset
|
4971 (size_t)(StackYellowPages+StackRedPages+StackShadowPages+ |
|
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coleenp
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1865
diff
changeset
|
4972 2*BytesPerWord COMPILER2_PRESENT(+1)) * page_size); |
| 0 | 4973 |
| 4974 size_t threadStackSizeInBytes = ThreadStackSize * K; | |
| 4975 if (threadStackSizeInBytes != 0 && | |
|
1867
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coleenp
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1865
diff
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|
4976 threadStackSizeInBytes < os::Solaris::min_stack_allowed) { |
| 0 | 4977 tty->print_cr("\nThe stack size specified is too small, Specify at least %dk", |
|
1867
b6aedd1acdc0
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coleenp
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1865
diff
changeset
|
4978 os::Solaris::min_stack_allowed/K); |
| 0 | 4979 return JNI_ERR; |
| 4980 } | |
| 4981 | |
| 4982 // For 64kbps there will be a 64kb page size, which makes | |
| 4983 // the usable default stack size quite a bit less. Increase the | |
| 4984 // stack for 64kb (or any > than 8kb) pages, this increases | |
| 4985 // virtual memory fragmentation (since we're not creating the | |
| 4986 // stack on a power of 2 boundary. The real fix for this | |
| 4987 // should be to fix the guard page mechanism. | |
| 4988 | |
| 4989 if (vm_page_size() > 8*K) { | |
| 4990 threadStackSizeInBytes = (threadStackSizeInBytes != 0) | |
| 4991 ? threadStackSizeInBytes + | |
| 4992 ((StackYellowPages + StackRedPages) * vm_page_size()) | |
| 4993 : 0; | |
| 4994 ThreadStackSize = threadStackSizeInBytes/K; | |
| 4995 } | |
| 4996 | |
| 4997 // Make the stack size a multiple of the page size so that | |
| 4998 // the yellow/red zones can be guarded. | |
| 4999 JavaThread::set_stack_size_at_create(round_to(threadStackSizeInBytes, | |
| 5000 vm_page_size())); | |
| 5001 | |
| 5002 Solaris::libthread_init(); | |
|
462
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439
diff
changeset
|
5003 |
| 0 | 5004 if (UseNUMA) { |
|
462
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6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
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diff
changeset
|
5005 if (!Solaris::liblgrp_init()) { |
|
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6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
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439
diff
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|
5006 UseNUMA = false; |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5007 } else { |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5008 size_t lgrp_limit = os::numa_get_groups_num(); |
| 6197 | 5009 int *lgrp_ids = NEW_C_HEAP_ARRAY(int, lgrp_limit, mtInternal); |
|
462
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6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
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diff
changeset
|
5010 size_t lgrp_num = os::numa_get_leaf_groups(lgrp_ids, lgrp_limit); |
| 6197 | 5011 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
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439
diff
changeset
|
5012 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
|
5013 // 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
|
5014 UseNUMA = false; |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5015 } |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5016 } |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
439
diff
changeset
|
5017 if (!UseNUMA && ForceNUMA) { |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
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439
diff
changeset
|
5018 UseNUMA = true; |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
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439
diff
changeset
|
5019 } |
|
85f1b9537f70
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diff
changeset
|
5020 } |
|
85f1b9537f70
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|
5021 |
| 0 | 5022 Solaris::signal_sets_init(); |
| 5023 Solaris::init_signal_mem(); | |
| 5024 Solaris::install_signal_handlers(); | |
| 5025 | |
| 5026 if (libjsigversion < JSIG_VERSION_1_4_1) { | |
| 5027 Maxlibjsigsigs = OLDMAXSIGNUM; | |
| 5028 } | |
| 5029 | |
| 5030 // initialize synchronization primitives to use either thread or | |
| 5031 // lwp synchronization (controlled by UseLWPSynchronization) | |
| 5032 Solaris::synchronization_init(); | |
| 5033 | |
| 5034 if (MaxFDLimit) { | |
| 5035 // set the number of file descriptors to max. print out error | |
| 5036 // if getrlimit/setrlimit fails but continue regardless. | |
| 5037 struct rlimit nbr_files; | |
| 5038 int status = getrlimit(RLIMIT_NOFILE, &nbr_files); | |
| 5039 if (status != 0) { | |
| 5040 if (PrintMiscellaneous && (Verbose || WizardMode)) | |
| 5041 perror("os::init_2 getrlimit failed"); | |
| 5042 } else { | |
| 5043 nbr_files.rlim_cur = nbr_files.rlim_max; | |
| 5044 status = setrlimit(RLIMIT_NOFILE, &nbr_files); | |
| 5045 if (status != 0) { | |
| 5046 if (PrintMiscellaneous && (Verbose || WizardMode)) | |
| 5047 perror("os::init_2 setrlimit failed"); | |
| 5048 } | |
| 5049 } | |
| 5050 } | |
| 5051 | |
| 5052 // Calculate theoretical max. size of Threads to guard gainst | |
| 5053 // artifical out-of-memory situations, where all available address- | |
| 5054 // space has been reserved by thread stacks. Default stack size is 1Mb. | |
| 5055 size_t pre_thread_stack_size = (JavaThread::stack_size_at_create()) ? | |
| 5056 JavaThread::stack_size_at_create() : (1*K*K); | |
| 5057 assert(pre_thread_stack_size != 0, "Must have a stack"); | |
| 5058 // Solaris has a maximum of 4Gb of user programs. Calculate the thread limit when | |
| 5059 // we should start doing Virtual Memory banging. Currently when the threads will | |
| 5060 // have used all but 200Mb of space. | |
| 5061 size_t max_address_space = ((unsigned int)4 * K * K * K) - (200 * K * K); | |
| 5062 Solaris::_os_thread_limit = max_address_space / pre_thread_stack_size; | |
| 5063 | |
| 5064 // at-exit methods are called in the reverse order of their registration. | |
| 5065 // In Solaris 7 and earlier, atexit functions are called on return from | |
| 5066 // main or as a result of a call to exit(3C). There can be only 32 of | |
| 5067 // these functions registered and atexit() does not set errno. In Solaris | |
| 5068 // 8 and later, there is no limit to the number of functions registered | |
| 5069 // and atexit() sets errno. In addition, in Solaris 8 and later, atexit | |
| 5070 // functions are called upon dlclose(3DL) in addition to return from main | |
| 5071 // and exit(3C). | |
| 5072 | |
| 5073 if (PerfAllowAtExitRegistration) { | |
| 5074 // only register atexit functions if PerfAllowAtExitRegistration is set. | |
| 5075 // atexit functions can be delayed until process exit time, which | |
| 5076 // can be problematic for embedded VM situations. Embedded VMs should | |
| 5077 // call DestroyJavaVM() to assure that VM resources are released. | |
| 5078 | |
| 5079 // note: perfMemory_exit_helper atexit function may be removed in | |
| 5080 // the future if the appropriate cleanup code can be added to the | |
| 5081 // VM_Exit VMOperation's doit method. | |
| 5082 if (atexit(perfMemory_exit_helper) != 0) { | |
| 5083 warning("os::init2 atexit(perfMemory_exit_helper) failed"); | |
| 5084 } | |
| 5085 } | |
| 5086 | |
| 5087 // Init pset_loadavg function pointer | |
| 5088 init_pset_getloadavg_ptr(); | |
| 5089 | |
| 5090 return JNI_OK; | |
| 5091 } | |
| 5092 | |
| 5093 // Mark the polling page as unreadable | |
| 5094 void os::make_polling_page_unreadable(void) { | |
| 5095 if( mprotect((char *)_polling_page, page_size, PROT_NONE) != 0 ) | |
| 5096 fatal("Could not disable polling page"); | |
| 5097 }; | |
| 5098 | |
| 5099 // Mark the polling page as readable | |
| 5100 void os::make_polling_page_readable(void) { | |
| 5101 if( mprotect((char *)_polling_page, page_size, PROT_READ) != 0 ) | |
| 5102 fatal("Could not enable polling page"); | |
| 5103 }; | |
| 5104 | |
| 5105 // OS interface. | |
| 5106 | |
| 5107 bool os::check_heap(bool force) { return true; } | |
| 5108 | |
| 5109 typedef int (*vsnprintf_t)(char* buf, size_t count, const char* fmt, va_list argptr); | |
| 5110 static vsnprintf_t sol_vsnprintf = NULL; | |
| 5111 | |
| 5112 int local_vsnprintf(char* buf, size_t count, const char* fmt, va_list argptr) { | |
| 5113 if (!sol_vsnprintf) { | |
| 5114 //search for the named symbol in the objects that were loaded after libjvm | |
| 5115 void* where = RTLD_NEXT; | |
| 5116 if ((sol_vsnprintf = CAST_TO_FN_PTR(vsnprintf_t, dlsym(where, "__vsnprintf"))) == NULL) | |
| 5117 sol_vsnprintf = CAST_TO_FN_PTR(vsnprintf_t, dlsym(where, "vsnprintf")); | |
| 5118 if (!sol_vsnprintf){ | |
| 5119 //search for the named symbol in the objects that were loaded before libjvm | |
| 5120 where = RTLD_DEFAULT; | |
| 5121 if ((sol_vsnprintf = CAST_TO_FN_PTR(vsnprintf_t, dlsym(where, "__vsnprintf"))) == NULL) | |
| 5122 sol_vsnprintf = CAST_TO_FN_PTR(vsnprintf_t, dlsym(where, "vsnprintf")); | |
| 5123 assert(sol_vsnprintf != NULL, "vsnprintf not found"); | |
| 5124 } | |
| 5125 } | |
| 5126 return (*sol_vsnprintf)(buf, count, fmt, argptr); | |
| 5127 } | |
| 5128 | |
| 5129 | |
| 5130 // Is a (classpath) directory empty? | |
| 5131 bool os::dir_is_empty(const char* path) { | |
| 5132 DIR *dir = NULL; | |
| 5133 struct dirent *ptr; | |
| 5134 | |
| 5135 dir = opendir(path); | |
| 5136 if (dir == NULL) return true; | |
| 5137 | |
| 5138 /* Scan the directory */ | |
| 5139 bool result = true; | |
| 5140 char buf[sizeof(struct dirent) + MAX_PATH]; | |
| 5141 struct dirent *dbuf = (struct dirent *) buf; | |
| 5142 while (result && (ptr = readdir(dir, dbuf)) != NULL) { | |
| 5143 if (strcmp(ptr->d_name, ".") != 0 && strcmp(ptr->d_name, "..") != 0) { | |
| 5144 result = false; | |
| 5145 } | |
| 5146 } | |
| 5147 closedir(dir); | |
| 5148 return result; | |
| 5149 } | |
| 5150 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
5151 // This code originates from JDK's sysOpen and open64_w |
|
828eafbd85cc
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ikrylov
parents:
1972
diff
changeset
|
5152 // from src/solaris/hpi/src/system_md.c |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5153 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5154 #ifndef O_DELETE |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5155 #define O_DELETE 0x10000 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5156 #endif |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5157 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5158 // 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
|
5159 // 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
|
5160 // 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
|
5161 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5162 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
|
5163 if (strlen(path) > MAX_PATH - 1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5164 errno = ENAMETOOLONG; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5165 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5166 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5167 int fd; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5168 int o_delete = (oflag & O_DELETE); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5169 oflag = oflag & ~O_DELETE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5170 |
| 2097 | 5171 fd = ::open64(path, oflag, mode); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5172 if (fd == -1) return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5173 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5174 //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
|
5175 { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5176 struct stat64 buf64; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5177 int ret = ::fstat64(fd, &buf64); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5178 int st_mode = buf64.st_mode; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5179 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5180 if (ret != -1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5181 if ((st_mode & S_IFMT) == S_IFDIR) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5182 errno = EISDIR; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5183 ::close(fd); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5184 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5185 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5186 } else { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5187 ::close(fd); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5188 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5189 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5190 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5191 /* |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5192 * 32-bit Solaris systems suffer from: |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5193 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5194 * - 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
|
5195 * 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
|
5196 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5197 * - 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
|
5198 * 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
|
5199 * 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
|
5200 * 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
|
5201 * 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
|
5202 * 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
|
5203 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5204 * We attempt to make everything work anyways by: |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5205 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5206 * - 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
|
5207 * 256 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5208 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5209 * - 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
|
5210 * 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
|
5211 * 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
|
5212 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5213 * - 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
|
5214 * 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
|
5215 * 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
|
5216 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5217 * See: |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5218 * 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
|
5219 * 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
|
5220 * 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
|
5221 * enable_extended_FILE_stdio() in VM initialisation |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5222 * Giri Mandalika's blog |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5223 * 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
|
5224 */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5225 #ifndef _LP64 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5226 if ((!enabled_extended_FILE_stdio) && fd < 256) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5227 int newfd = ::fcntl(fd, F_DUPFD, 256); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5228 if (newfd != -1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5229 ::close(fd); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5230 fd = newfd; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5231 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5232 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5233 #endif // 32-bit Solaris |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5234 /* |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5235 * 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
|
5236 * specifically destined for a subprocess should have the |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5237 * 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
|
5238 * 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
|
5239 * 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
|
5240 * UNIXProcess.c), and this in turn might: |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5241 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5242 * - 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
|
5243 * descriptors, resulting in mysterious hangs, or |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5244 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5245 * - 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
|
5246 * suffering from bug 1085341. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5247 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5248 * (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
|
5249 * design flaw) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5250 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5251 * See: |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5252 * 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
|
5253 * 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
|
5254 * 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
|
5255 */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5256 #ifdef FD_CLOEXEC |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5257 { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5258 int flags = ::fcntl(fd, F_GETFD); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5259 if (flags != -1) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5260 ::fcntl(fd, F_SETFD, flags | FD_CLOEXEC); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5261 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5262 #endif |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5263 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5264 if (o_delete != 0) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5265 ::unlink(path); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5266 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5267 return fd; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5268 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5269 |
| 0 | 5270 // create binary file, rewriting existing file if required |
| 5271 int os::create_binary_file(const char* path, bool rewrite_existing) { | |
| 5272 int oflags = O_WRONLY | O_CREAT; | |
| 5273 if (!rewrite_existing) { | |
| 5274 oflags |= O_EXCL; | |
| 5275 } | |
| 5276 return ::open64(path, oflags, S_IREAD | S_IWRITE); | |
| 5277 } | |
| 5278 | |
| 5279 // return current position of file pointer | |
| 5280 jlong os::current_file_offset(int fd) { | |
| 5281 return (jlong)::lseek64(fd, (off64_t)0, SEEK_CUR); | |
| 5282 } | |
| 5283 | |
| 5284 // move file pointer to the specified offset | |
| 5285 jlong os::seek_to_file_offset(int fd, jlong offset) { | |
| 5286 return (jlong)::lseek64(fd, (off64_t)offset, SEEK_SET); | |
| 5287 } | |
| 5288 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5289 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
|
5290 return (jlong) ::lseek64(fd, offset, whence); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5291 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5292 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5293 char * os::native_path(char *path) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5294 return path; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5295 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5296 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5297 int os::ftruncate(int fd, jlong length) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5298 return ::ftruncate64(fd, length); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5299 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5300 |
|
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diff
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|
5301 int os::fsync(int fd) { |
|
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diff
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|
5302 RESTARTABLE_RETURN_INT(::fsync(fd)); |
|
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diff
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|
5303 } |
|
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|
5304 |
|
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|
5305 int os::available(int fd, jlong *bytes) { |
|
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diff
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|
5306 jlong cur, end; |
|
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diff
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|
5307 int mode; |
|
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diff
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|
5308 struct stat64 buf64; |
|
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diff
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|
5309 |
|
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diff
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|
5310 if (::fstat64(fd, &buf64) >= 0) { |
|
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diff
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|
5311 mode = buf64.st_mode; |
|
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|
5312 if (S_ISCHR(mode) || S_ISFIFO(mode) || S_ISSOCK(mode)) { |
|
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diff
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|
5313 /* |
|
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diff
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|
5314 * XXX: is the following call interruptible? If so, this might |
|
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1972
diff
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|
5315 * need to go through the INTERRUPT_IO() wrapper as for other |
|
828eafbd85cc
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diff
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|
5316 * blocking, interruptible calls in this file. |
|
828eafbd85cc
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ikrylov
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diff
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|
5317 */ |
|
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diff
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|
5318 int n,ioctl_return; |
|
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diff
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|
5319 |
|
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diff
changeset
|
5320 INTERRUPTIBLE(::ioctl(fd, FIONREAD, &n),ioctl_return,os::Solaris::clear_interrupted); |
|
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diff
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|
5321 if (ioctl_return>= 0) { |
|
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diff
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|
5322 *bytes = n; |
|
828eafbd85cc
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1972
diff
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|
5323 return 1; |
|
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1972
diff
changeset
|
5324 } |
|
828eafbd85cc
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diff
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|
5325 } |
|
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6348631: remove the use of the HPI library from Hotspot
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diff
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|
5326 } |
|
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diff
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|
5327 if ((cur = ::lseek64(fd, 0L, SEEK_CUR)) == -1) { |
|
828eafbd85cc
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diff
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|
5328 return 0; |
|
828eafbd85cc
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1972
diff
changeset
|
5329 } else if ((end = ::lseek64(fd, 0L, SEEK_END)) == -1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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diff
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|
5330 return 0; |
|
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diff
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|
5331 } else if (::lseek64(fd, cur, SEEK_SET) == -1) { |
|
828eafbd85cc
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diff
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|
5332 return 0; |
|
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diff
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|
5333 } |
|
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|
5334 *bytes = end - cur; |
|
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|
5335 return 1; |
|
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diff
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|
5336 } |
|
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|
5337 |
| 0 | 5338 // Map a block of memory. |
| 6197 | 5339 char* os::pd_map_memory(int fd, const char* file_name, size_t file_offset, |
| 0 | 5340 char *addr, size_t bytes, bool read_only, |
| 5341 bool allow_exec) { | |
| 5342 int prot; | |
| 5343 int flags; | |
| 5344 | |
| 5345 if (read_only) { | |
| 5346 prot = PROT_READ; | |
| 5347 flags = MAP_SHARED; | |
| 5348 } else { | |
| 5349 prot = PROT_READ | PROT_WRITE; | |
| 5350 flags = MAP_PRIVATE; | |
| 5351 } | |
| 5352 | |
| 5353 if (allow_exec) { | |
| 5354 prot |= PROT_EXEC; | |
| 5355 } | |
| 5356 | |
| 5357 if (addr != NULL) { | |
| 5358 flags |= MAP_FIXED; | |
| 5359 } | |
| 5360 | |
| 5361 char* mapped_address = (char*)mmap(addr, (size_t)bytes, prot, flags, | |
| 5362 fd, file_offset); | |
| 5363 if (mapped_address == MAP_FAILED) { | |
| 5364 return NULL; | |
| 5365 } | |
| 5366 return mapped_address; | |
| 5367 } | |
| 5368 | |
| 5369 | |
| 5370 // Remap a block of memory. | |
| 6197 | 5371 char* os::pd_remap_memory(int fd, const char* file_name, size_t file_offset, |
| 0 | 5372 char *addr, size_t bytes, bool read_only, |
| 5373 bool allow_exec) { | |
| 5374 // same as map_memory() on this OS | |
| 5375 return os::map_memory(fd, file_name, file_offset, addr, bytes, read_only, | |
| 5376 allow_exec); | |
| 5377 } | |
| 5378 | |
| 5379 | |
| 5380 // Unmap a block of memory. | |
| 6197 | 5381 bool os::pd_unmap_memory(char* addr, size_t bytes) { |
| 0 | 5382 return munmap(addr, bytes) == 0; |
| 5383 } | |
| 5384 | |
| 5385 void os::pause() { | |
| 5386 char filename[MAX_PATH]; | |
| 5387 if (PauseAtStartupFile && PauseAtStartupFile[0]) { | |
| 5388 jio_snprintf(filename, MAX_PATH, PauseAtStartupFile); | |
| 5389 } else { | |
| 5390 jio_snprintf(filename, MAX_PATH, "./vm.paused.%d", current_process_id()); | |
| 5391 } | |
| 5392 | |
| 5393 int fd = ::open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0666); | |
| 5394 if (fd != -1) { | |
| 5395 struct stat buf; | |
|
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828eafbd85cc
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diff
changeset
|
5396 ::close(fd); |
| 0 | 5397 while (::stat(filename, &buf) == 0) { |
| 5398 (void)::poll(NULL, 0, 100); | |
| 5399 } | |
| 5400 } else { | |
| 5401 jio_fprintf(stderr, | |
| 5402 "Could not open pause file '%s', continuing immediately.\n", filename); | |
| 5403 } | |
| 5404 } | |
| 5405 | |
| 5406 #ifndef PRODUCT | |
| 5407 #ifdef INTERPOSE_ON_SYSTEM_SYNCH_FUNCTIONS | |
| 5408 // Turn this on if you need to trace synch operations. | |
| 5409 // Set RECORD_SYNCH_LIMIT to a large-enough value, | |
| 5410 // and call record_synch_enable and record_synch_disable | |
| 5411 // around the computation of interest. | |
| 5412 | |
| 5413 void record_synch(char* name, bool returning); // defined below | |
| 5414 | |
| 5415 class RecordSynch { | |
| 5416 char* _name; | |
| 5417 public: | |
| 5418 RecordSynch(char* name) :_name(name) | |
| 5419 { record_synch(_name, false); } | |
| 5420 ~RecordSynch() { record_synch(_name, true); } | |
| 5421 }; | |
| 5422 | |
| 5423 #define CHECK_SYNCH_OP(ret, name, params, args, inner) \ | |
| 5424 extern "C" ret name params { \ | |
| 5425 typedef ret name##_t params; \ | |
| 5426 static name##_t* implem = NULL; \ | |
| 5427 static int callcount = 0; \ | |
| 5428 if (implem == NULL) { \ | |
| 5429 implem = (name##_t*) dlsym(RTLD_NEXT, #name); \ | |
| 5430 if (implem == NULL) fatal(dlerror()); \ | |
| 5431 } \ | |
| 5432 ++callcount; \ | |
| 5433 RecordSynch _rs(#name); \ | |
| 5434 inner; \ | |
| 5435 return implem args; \ | |
| 5436 } | |
| 5437 // in dbx, examine callcounts this way: | |
| 5438 // for n in $(eval whereis callcount | awk '{print $2}'); do print $n; done | |
| 5439 | |
| 5440 #define CHECK_POINTER_OK(p) \ | |
|
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da91efe96a93
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coleenp
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6200
diff
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|
5441 (!Universe::is_fully_initialized() || !Universe::is_reserved_heap((oop)(p))) |
| 0 | 5442 #define CHECK_MU \ |
| 5443 if (!CHECK_POINTER_OK(mu)) fatal("Mutex must be in C heap only."); | |
| 5444 #define CHECK_CV \ | |
| 5445 if (!CHECK_POINTER_OK(cv)) fatal("Condvar must be in C heap only."); | |
| 5446 #define CHECK_P(p) \ | |
| 5447 if (!CHECK_POINTER_OK(p)) fatal(false, "Pointer must be in C heap only."); | |
| 5448 | |
| 5449 #define CHECK_MUTEX(mutex_op) \ | |
| 5450 CHECK_SYNCH_OP(int, mutex_op, (mutex_t *mu), (mu), CHECK_MU); | |
| 5451 | |
| 5452 CHECK_MUTEX( mutex_lock) | |
| 5453 CHECK_MUTEX( _mutex_lock) | |
| 5454 CHECK_MUTEX( mutex_unlock) | |
| 5455 CHECK_MUTEX(_mutex_unlock) | |
| 5456 CHECK_MUTEX( mutex_trylock) | |
| 5457 CHECK_MUTEX(_mutex_trylock) | |
| 5458 | |
| 5459 #define CHECK_COND(cond_op) \ | |
| 5460 CHECK_SYNCH_OP(int, cond_op, (cond_t *cv, mutex_t *mu), (cv, mu), CHECK_MU;CHECK_CV); | |
| 5461 | |
| 5462 CHECK_COND( cond_wait); | |
| 5463 CHECK_COND(_cond_wait); | |
| 5464 CHECK_COND(_cond_wait_cancel); | |
| 5465 | |
| 5466 #define CHECK_COND2(cond_op) \ | |
| 5467 CHECK_SYNCH_OP(int, cond_op, (cond_t *cv, mutex_t *mu, timestruc_t* ts), (cv, mu, ts), CHECK_MU;CHECK_CV); | |
| 5468 | |
| 5469 CHECK_COND2( cond_timedwait); | |
| 5470 CHECK_COND2(_cond_timedwait); | |
| 5471 CHECK_COND2(_cond_timedwait_cancel); | |
| 5472 | |
| 5473 // do the _lwp_* versions too | |
| 5474 #define mutex_t lwp_mutex_t | |
| 5475 #define cond_t lwp_cond_t | |
| 5476 CHECK_MUTEX( _lwp_mutex_lock) | |
| 5477 CHECK_MUTEX( _lwp_mutex_unlock) | |
| 5478 CHECK_MUTEX( _lwp_mutex_trylock) | |
| 5479 CHECK_MUTEX( __lwp_mutex_lock) | |
| 5480 CHECK_MUTEX( __lwp_mutex_unlock) | |
| 5481 CHECK_MUTEX( __lwp_mutex_trylock) | |
| 5482 CHECK_MUTEX(___lwp_mutex_lock) | |
| 5483 CHECK_MUTEX(___lwp_mutex_unlock) | |
| 5484 | |
| 5485 CHECK_COND( _lwp_cond_wait); | |
| 5486 CHECK_COND( __lwp_cond_wait); | |
| 5487 CHECK_COND(___lwp_cond_wait); | |
| 5488 | |
| 5489 CHECK_COND2( _lwp_cond_timedwait); | |
| 5490 CHECK_COND2( __lwp_cond_timedwait); | |
| 5491 #undef mutex_t | |
| 5492 #undef cond_t | |
| 5493 | |
| 5494 CHECK_SYNCH_OP(int, _lwp_suspend2, (int lwp, int *n), (lwp, n), 0); | |
| 5495 CHECK_SYNCH_OP(int,__lwp_suspend2, (int lwp, int *n), (lwp, n), 0); | |
| 5496 CHECK_SYNCH_OP(int, _lwp_kill, (int lwp, int n), (lwp, n), 0); | |
| 5497 CHECK_SYNCH_OP(int,__lwp_kill, (int lwp, int n), (lwp, n), 0); | |
| 5498 CHECK_SYNCH_OP(int, _lwp_sema_wait, (lwp_sema_t* p), (p), CHECK_P(p)); | |
| 5499 CHECK_SYNCH_OP(int,__lwp_sema_wait, (lwp_sema_t* p), (p), CHECK_P(p)); | |
| 5500 CHECK_SYNCH_OP(int, _lwp_cond_broadcast, (lwp_cond_t* cv), (cv), CHECK_CV); | |
| 5501 CHECK_SYNCH_OP(int,__lwp_cond_broadcast, (lwp_cond_t* cv), (cv), CHECK_CV); | |
| 5502 | |
| 5503 | |
| 5504 // recording machinery: | |
| 5505 | |
| 5506 enum { RECORD_SYNCH_LIMIT = 200 }; | |
| 5507 char* record_synch_name[RECORD_SYNCH_LIMIT]; | |
| 5508 void* record_synch_arg0ptr[RECORD_SYNCH_LIMIT]; | |
| 5509 bool record_synch_returning[RECORD_SYNCH_LIMIT]; | |
| 5510 thread_t record_synch_thread[RECORD_SYNCH_LIMIT]; | |
| 5511 int record_synch_count = 0; | |
| 5512 bool record_synch_enabled = false; | |
| 5513 | |
| 5514 // in dbx, examine recorded data this way: | |
| 5515 // for n in name arg0ptr returning thread; do print record_synch_$n[0..record_synch_count-1]; done | |
| 5516 | |
| 5517 void record_synch(char* name, bool returning) { | |
| 5518 if (record_synch_enabled) { | |
| 5519 if (record_synch_count < RECORD_SYNCH_LIMIT) { | |
| 5520 record_synch_name[record_synch_count] = name; | |
| 5521 record_synch_returning[record_synch_count] = returning; | |
| 5522 record_synch_thread[record_synch_count] = thr_self(); | |
| 5523 record_synch_arg0ptr[record_synch_count] = &name; | |
| 5524 record_synch_count++; | |
| 5525 } | |
| 5526 // put more checking code here: | |
| 5527 // ... | |
| 5528 } | |
| 5529 } | |
| 5530 | |
| 5531 void record_synch_enable() { | |
| 5532 // start collecting trace data, if not already doing so | |
| 5533 if (!record_synch_enabled) record_synch_count = 0; | |
| 5534 record_synch_enabled = true; | |
| 5535 } | |
| 5536 | |
| 5537 void record_synch_disable() { | |
| 5538 // stop collecting trace data | |
| 5539 record_synch_enabled = false; | |
| 5540 } | |
| 5541 | |
| 5542 #endif // INTERPOSE_ON_SYSTEM_SYNCH_FUNCTIONS | |
| 5543 #endif // PRODUCT | |
| 5544 | |
| 5545 const intptr_t thr_time_off = (intptr_t)(&((prusage_t *)(NULL))->pr_utime); | |
| 5546 const intptr_t thr_time_size = (intptr_t)(&((prusage_t *)(NULL))->pr_ttime) - | |
| 5547 (intptr_t)(&((prusage_t *)(NULL))->pr_utime); | |
| 5548 | |
| 5549 | |
| 5550 // JVMTI & JVM monitoring and management support | |
| 5551 // The thread_cpu_time() and current_thread_cpu_time() are only | |
| 5552 // supported if is_thread_cpu_time_supported() returns true. | |
| 5553 // They are not supported on Solaris T1. | |
| 5554 | |
| 5555 // current_thread_cpu_time(bool) and thread_cpu_time(Thread*, bool) | |
| 5556 // are used by JVM M&M and JVMTI to get user+sys or user CPU time | |
| 5557 // of a thread. | |
| 5558 // | |
| 5559 // current_thread_cpu_time() and thread_cpu_time(Thread *) | |
| 5560 // returns the fast estimate available on the platform. | |
| 5561 | |
| 5562 // hrtime_t gethrvtime() return value includes | |
| 5563 // user time but does not include system time | |
| 5564 jlong os::current_thread_cpu_time() { | |
| 5565 return (jlong) gethrvtime(); | |
| 5566 } | |
| 5567 | |
| 5568 jlong os::thread_cpu_time(Thread *thread) { | |
| 5569 // return user level CPU time only to be consistent with | |
| 5570 // what current_thread_cpu_time returns. | |
| 5571 // thread_cpu_time_info() must be changed if this changes | |
| 5572 return os::thread_cpu_time(thread, false /* user time only */); | |
| 5573 } | |
| 5574 | |
| 5575 jlong os::current_thread_cpu_time(bool user_sys_cpu_time) { | |
| 5576 if (user_sys_cpu_time) { | |
| 5577 return os::thread_cpu_time(Thread::current(), user_sys_cpu_time); | |
| 5578 } else { | |
| 5579 return os::current_thread_cpu_time(); | |
| 5580 } | |
| 5581 } | |
| 5582 | |
| 5583 jlong os::thread_cpu_time(Thread *thread, bool user_sys_cpu_time) { | |
| 5584 char proc_name[64]; | |
| 5585 int count; | |
| 5586 prusage_t prusage; | |
| 5587 jlong lwp_time; | |
| 5588 int fd; | |
| 5589 | |
| 5590 sprintf(proc_name, "/proc/%d/lwp/%d/lwpusage", | |
| 5591 getpid(), | |
| 5592 thread->osthread()->lwp_id()); | |
|
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1972
diff
changeset
|
5593 fd = ::open(proc_name, O_RDONLY); |
| 0 | 5594 if ( fd == -1 ) return -1; |
| 5595 | |
| 5596 do { | |
|
1980
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ikrylov
parents:
1972
diff
changeset
|
5597 count = ::pread(fd, |
| 0 | 5598 (void *)&prusage.pr_utime, |
| 5599 thr_time_size, | |
| 5600 thr_time_off); | |
| 5601 } while (count < 0 && errno == EINTR); | |
|
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6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5602 ::close(fd); |
| 0 | 5603 if ( count < 0 ) return -1; |
| 5604 | |
| 5605 if (user_sys_cpu_time) { | |
| 5606 // user + system CPU time | |
| 5607 lwp_time = (((jlong)prusage.pr_stime.tv_sec + | |
| 5608 (jlong)prusage.pr_utime.tv_sec) * (jlong)1000000000) + | |
| 5609 (jlong)prusage.pr_stime.tv_nsec + | |
| 5610 (jlong)prusage.pr_utime.tv_nsec; | |
| 5611 } else { | |
| 5612 // user level CPU time only | |
| 5613 lwp_time = ((jlong)prusage.pr_utime.tv_sec * (jlong)1000000000) + | |
| 5614 (jlong)prusage.pr_utime.tv_nsec; | |
| 5615 } | |
| 5616 | |
| 5617 return(lwp_time); | |
| 5618 } | |
| 5619 | |
| 5620 void os::current_thread_cpu_time_info(jvmtiTimerInfo *info_ptr) { | |
| 5621 info_ptr->max_value = ALL_64_BITS; // will not wrap in less than 64 bits | |
| 5622 info_ptr->may_skip_backward = false; // elapsed time not wall time | |
| 5623 info_ptr->may_skip_forward = false; // elapsed time not wall time | |
| 5624 info_ptr->kind = JVMTI_TIMER_USER_CPU; // only user time is returned | |
| 5625 } | |
| 5626 | |
| 5627 void os::thread_cpu_time_info(jvmtiTimerInfo *info_ptr) { | |
| 5628 info_ptr->max_value = ALL_64_BITS; // will not wrap in less than 64 bits | |
| 5629 info_ptr->may_skip_backward = false; // elapsed time not wall time | |
| 5630 info_ptr->may_skip_forward = false; // elapsed time not wall time | |
| 5631 info_ptr->kind = JVMTI_TIMER_USER_CPU; // only user time is returned | |
| 5632 } | |
| 5633 | |
| 5634 bool os::is_thread_cpu_time_supported() { | |
| 5635 if ( os::Solaris::T2_libthread() || UseBoundThreads ) { | |
| 5636 return true; | |
| 5637 } else { | |
| 5638 return false; | |
| 5639 } | |
| 5640 } | |
| 5641 | |
| 5642 // System loadavg support. Returns -1 if load average cannot be obtained. | |
| 5643 // Return the load average for our processor set if the primitive exists | |
| 5644 // (Solaris 9 and later). Otherwise just return system wide loadavg. | |
| 5645 int os::loadavg(double loadavg[], int nelem) { | |
| 5646 if (pset_getloadavg_ptr != NULL) { | |
| 5647 return (*pset_getloadavg_ptr)(PS_MYID, loadavg, nelem); | |
| 5648 } else { | |
| 5649 return ::getloadavg(loadavg, nelem); | |
| 5650 } | |
| 5651 } | |
| 5652 | |
| 5653 //--------------------------------------------------------------------------------- | |
| 5654 | |
|
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bobv
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diff
changeset
|
5655 bool os::find(address addr, outputStream* st) { |
| 0 | 5656 Dl_info dlinfo; |
| 5657 memset(&dlinfo, 0, sizeof(dlinfo)); | |
|
11092
59b052799158
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diff
changeset
|
5658 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
|
5659 st->print(PTR_FORMAT ": ", addr); |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
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changeset
|
5660 if (dlinfo.dli_sname != NULL && dlinfo.dli_saddr != NULL) { |
|
1681
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bobv
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diff
changeset
|
5661 st->print("%s+%#lx", dlinfo.dli_sname, addr-(intptr_t)dlinfo.dli_saddr); |
|
11092
59b052799158
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parents:
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diff
changeset
|
5662 } else if (dlinfo.dli_fbase != NULL) |
|
1681
126ea7725993
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bobv
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diff
changeset
|
5663 st->print("<offset %#lx>", addr-(intptr_t)dlinfo.dli_fbase); |
| 0 | 5664 else |
|
1681
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changeset
|
5665 st->print("<absolute address>"); |
|
11092
59b052799158
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diff
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|
5666 if (dlinfo.dli_fname != NULL) { |
|
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
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changeset
|
5667 st->print(" in %s", dlinfo.dli_fname); |
|
59b052799158
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|
5668 } |
|
59b052799158
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diff
changeset
|
5669 if (dlinfo.dli_fbase != NULL) { |
|
59b052799158
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dcubed
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diff
changeset
|
5670 st->print(" at " PTR_FORMAT, dlinfo.dli_fbase); |
|
59b052799158
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dcubed
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diff
changeset
|
5671 } |
|
1681
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changeset
|
5672 st->cr(); |
| 0 | 5673 |
| 5674 if (Verbose) { | |
| 5675 // decode some bytes around the PC | |
|
9060
cc32ccaaf47f
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mikael
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9059
diff
changeset
|
5676 address begin = clamp_address_in_page(addr-40, addr, os::vm_page_size()); |
|
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
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9059
diff
changeset
|
5677 address end = clamp_address_in_page(addr+40, addr, os::vm_page_size()); |
| 0 | 5678 address lowest = (address) dlinfo.dli_sname; |
| 5679 if (!lowest) lowest = (address) dlinfo.dli_fbase; | |
| 5680 if (begin < lowest) begin = lowest; | |
| 5681 Dl_info dlinfo2; | |
|
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|
5682 if (dladdr(end, &dlinfo2) != 0 && dlinfo2.dli_saddr != dlinfo.dli_saddr |
| 0 | 5683 && end > dlinfo2.dli_saddr && dlinfo2.dli_saddr > begin) |
| 5684 end = (address) dlinfo2.dli_saddr; | |
|
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|
5685 Disassembler::decode(begin, end, st); |
| 0 | 5686 } |
| 5687 return true; | |
| 5688 } | |
| 5689 return false; | |
| 5690 } | |
| 5691 | |
| 5692 // Following function has been added to support HotSparc's libjvm.so running | |
| 5693 // under Solaris production JDK 1.2.2 / 1.3.0. These came from | |
| 5694 // src/solaris/hpi/native_threads in the EVM codebase. | |
| 5695 // | |
| 5696 // NOTE: This is no longer needed in the 1.3.1 and 1.4 production release | |
| 5697 // libraries and should thus be removed. We will leave it behind for a while | |
| 5698 // until we no longer want to able to run on top of 1.3.0 Solaris production | |
| 5699 // JDK. See 4341971. | |
| 5700 | |
| 5701 #define STACK_SLACK 0x800 | |
| 5702 | |
| 5703 extern "C" { | |
| 5704 intptr_t sysThreadAvailableStackWithSlack() { | |
| 5705 stack_t st; | |
| 5706 intptr_t retval, stack_top; | |
| 5707 retval = thr_stksegment(&st); | |
| 5708 assert(retval == 0, "incorrect return value from thr_stksegment"); | |
| 5709 assert((address)&st < (address)st.ss_sp, "Invalid stack base returned"); | |
| 5710 assert((address)&st > (address)st.ss_sp-st.ss_size, "Invalid stack size returned"); | |
| 5711 stack_top=(intptr_t)st.ss_sp-st.ss_size; | |
| 5712 return ((intptr_t)&stack_top - stack_top - STACK_SLACK); | |
| 5713 } | |
| 5714 } | |
| 5715 | |
| 5716 // ObjectMonitor park-unpark infrastructure ... | |
| 5717 // | |
| 5718 // We implement Solaris and Linux PlatformEvents with the | |
| 5719 // obvious condvar-mutex-flag triple. | |
| 5720 // Another alternative that works quite well is pipes: | |
| 5721 // Each PlatformEvent consists of a pipe-pair. | |
| 5722 // The thread associated with the PlatformEvent | |
| 5723 // calls park(), which reads from the input end of the pipe. | |
| 5724 // Unpark() writes into the other end of the pipe. | |
| 5725 // The write-side of the pipe must be set NDELAY. | |
| 5726 // Unfortunately pipes consume a large # of handles. | |
| 5727 // Native solaris lwp_park() and lwp_unpark() work nicely, too. | |
| 5728 // Using pipes for the 1st few threads might be workable, however. | |
| 5729 // | |
| 5730 // park() is permitted to return spuriously. | |
| 5731 // Callers of park() should wrap the call to park() in | |
| 5732 // an appropriate loop. A litmus test for the correct | |
| 5733 // usage of park is the following: if park() were modified | |
| 5734 // to immediately return 0 your code should still work, | |
| 5735 // albeit degenerating to a spin loop. | |
| 5736 // | |
| 5737 // An interesting optimization for park() is to use a trylock() | |
| 5738 // to attempt to acquire the mutex. If the trylock() fails | |
| 5739 // then we know that a concurrent unpark() operation is in-progress. | |
| 5740 // in that case the park() code could simply set _count to 0 | |
| 5741 // and return immediately. The subsequent park() operation *might* | |
| 5742 // return immediately. That's harmless as the caller of park() is | |
| 5743 // expected to loop. By using trylock() we will have avoided a | |
| 5744 // avoided a context switch caused by contention on the per-thread mutex. | |
| 5745 // | |
| 5746 // TODO-FIXME: | |
| 5747 // 1. Reconcile Doug's JSR166 j.u.c park-unpark with the | |
| 5748 // objectmonitor implementation. | |
| 5749 // 2. Collapse the JSR166 parker event, and the | |
| 5750 // objectmonitor ParkEvent into a single "Event" construct. | |
| 5751 // 3. In park() and unpark() add: | |
| 5752 // assert (Thread::current() == AssociatedWith). | |
| 5753 // 4. add spurious wakeup injection on a -XX:EarlyParkReturn=N switch. | |
| 5754 // 1-out-of-N park() operations will return immediately. | |
| 5755 // | |
| 5756 // _Event transitions in park() | |
| 5757 // -1 => -1 : illegal | |
| 5758 // 1 => 0 : pass - return immediately | |
| 5759 // 0 => -1 : block | |
| 5760 // | |
| 5761 // _Event serves as a restricted-range semaphore. | |
| 5762 // | |
| 5763 // Another possible encoding of _Event would be with | |
| 5764 // explicit "PARKED" == 01b and "SIGNALED" == 10b bits. | |
| 5765 // | |
| 5766 // TODO-FIXME: add DTRACE probes for: | |
| 5767 // 1. Tx parks | |
| 5768 // 2. Ty unparks Tx | |
| 5769 // 3. Tx resumes from park | |
| 5770 | |
| 5771 | |
| 5772 // value determined through experimentation | |
| 5773 #define ROUNDINGFIX 11 | |
| 5774 | |
| 5775 // utility to compute the abstime argument to timedwait. | |
| 5776 // TODO-FIXME: switch from compute_abstime() to unpackTime(). | |
| 5777 | |
| 5778 static timestruc_t* compute_abstime(timestruc_t* abstime, jlong millis) { | |
| 5779 // millis is the relative timeout time | |
| 5780 // abstime will be the absolute timeout time | |
| 5781 if (millis < 0) millis = 0; | |
| 5782 struct timeval now; | |
| 5783 int status = gettimeofday(&now, NULL); | |
| 5784 assert(status == 0, "gettimeofday"); | |
| 5785 jlong seconds = millis / 1000; | |
| 5786 jlong max_wait_period; | |
| 5787 | |
| 5788 if (UseLWPSynchronization) { | |
| 5789 // forward port of fix for 4275818 (not sleeping long enough) | |
| 5790 // There was a bug in Solaris 6, 7 and pre-patch 5 of 8 where | |
| 5791 // _lwp_cond_timedwait() used a round_down algorithm rather | |
| 5792 // than a round_up. For millis less than our roundfactor | |
| 5793 // it rounded down to 0 which doesn't meet the spec. | |
| 5794 // For millis > roundfactor we may return a bit sooner, but | |
| 5795 // since we can not accurately identify the patch level and | |
| 5796 // this has already been fixed in Solaris 9 and 8 we will | |
| 5797 // leave it alone rather than always rounding down. | |
| 5798 | |
| 5799 if (millis > 0 && millis < ROUNDINGFIX) millis = ROUNDINGFIX; | |
| 5800 // It appears that when we go directly through Solaris _lwp_cond_timedwait() | |
| 5801 // the acceptable max time threshold is smaller than for libthread on 2.5.1 and 2.6 | |
| 5802 max_wait_period = 21000000; | |
| 5803 } else { | |
| 5804 max_wait_period = 50000000; | |
| 5805 } | |
| 5806 millis %= 1000; | |
| 5807 if (seconds > max_wait_period) { // see man cond_timedwait(3T) | |
| 5808 seconds = max_wait_period; | |
| 5809 } | |
| 5810 abstime->tv_sec = now.tv_sec + seconds; | |
| 5811 long usec = now.tv_usec + millis * 1000; | |
| 5812 if (usec >= 1000000) { | |
| 5813 abstime->tv_sec += 1; | |
| 5814 usec -= 1000000; | |
| 5815 } | |
| 5816 abstime->tv_nsec = usec * 1000; | |
| 5817 return abstime; | |
| 5818 } | |
| 5819 | |
| 5820 // Test-and-clear _Event, always leaves _Event set to 0, returns immediately. | |
| 5821 // Conceptually TryPark() should be equivalent to park(0). | |
| 5822 | |
| 5823 int os::PlatformEvent::TryPark() { | |
| 5824 for (;;) { | |
| 5825 const int v = _Event ; | |
| 5826 guarantee ((v == 0) || (v == 1), "invariant") ; | |
| 5827 if (Atomic::cmpxchg (0, &_Event, v) == v) return v ; | |
| 5828 } | |
| 5829 } | |
| 5830 | |
| 5831 void os::PlatformEvent::park() { // AKA: down() | |
| 5832 // Invariant: Only the thread associated with the Event/PlatformEvent | |
| 5833 // may call park(). | |
| 5834 int v ; | |
| 5835 for (;;) { | |
| 5836 v = _Event ; | |
| 5837 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break ; | |
| 5838 } | |
| 5839 guarantee (v >= 0, "invariant") ; | |
| 5840 if (v == 0) { | |
| 5841 // Do this the hard way by blocking ... | |
| 5842 // See http://monaco.sfbay/detail.jsf?cr=5094058. | |
| 5843 // TODO-FIXME: for Solaris SPARC set fprs.FEF=0 prior to parking. | |
| 5844 // Only for SPARC >= V8PlusA | |
| 5845 #if defined(__sparc) && defined(COMPILER2) | |
| 5846 if (ClearFPUAtPark) { _mark_fpu_nosave() ; } | |
| 5847 #endif | |
| 5848 int status = os::Solaris::mutex_lock(_mutex); | |
| 5849 assert_status(status == 0, status, "mutex_lock"); | |
| 5850 guarantee (_nParked == 0, "invariant") ; | |
| 5851 ++ _nParked ; | |
| 5852 while (_Event < 0) { | |
| 5853 // for some reason, under 2.7 lwp_cond_wait() may return ETIME ... | |
| 5854 // Treat this the same as if the wait was interrupted | |
| 5855 // With usr/lib/lwp going to kernel, always handle ETIME | |
| 5856 status = os::Solaris::cond_wait(_cond, _mutex); | |
| 5857 if (status == ETIME) status = EINTR ; | |
| 5858 assert_status(status == 0 || status == EINTR, status, "cond_wait"); | |
| 5859 } | |
| 5860 -- _nParked ; | |
| 5861 _Event = 0 ; | |
| 5862 status = os::Solaris::mutex_unlock(_mutex); | |
| 5863 assert_status(status == 0, status, "mutex_unlock"); | |
|
7629
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diff
changeset
|
5864 // Paranoia to ensure our locked and lock-free paths interact |
|
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diff
changeset
|
5865 // correctly with each other. |
|
22ba8c8ce6a6
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dcubed
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diff
changeset
|
5866 OrderAccess::fence(); |
| 0 | 5867 } |
| 5868 } | |
| 5869 | |
| 5870 int os::PlatformEvent::park(jlong millis) { | |
| 5871 guarantee (_nParked == 0, "invariant") ; | |
| 5872 int v ; | |
| 5873 for (;;) { | |
| 5874 v = _Event ; | |
| 5875 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break ; | |
| 5876 } | |
| 5877 guarantee (v >= 0, "invariant") ; | |
| 5878 if (v != 0) return OS_OK ; | |
| 5879 | |
| 5880 int ret = OS_TIMEOUT; | |
| 5881 timestruc_t abst; | |
| 5882 compute_abstime (&abst, millis); | |
| 5883 | |
| 5884 // See http://monaco.sfbay/detail.jsf?cr=5094058. | |
| 5885 // For Solaris SPARC set fprs.FEF=0 prior to parking. | |
| 5886 // Only for SPARC >= V8PlusA | |
| 5887 #if defined(__sparc) && defined(COMPILER2) | |
| 5888 if (ClearFPUAtPark) { _mark_fpu_nosave() ; } | |
| 5889 #endif | |
| 5890 int status = os::Solaris::mutex_lock(_mutex); | |
| 5891 assert_status(status == 0, status, "mutex_lock"); | |
| 5892 guarantee (_nParked == 0, "invariant") ; | |
| 5893 ++ _nParked ; | |
| 5894 while (_Event < 0) { | |
| 5895 int status = os::Solaris::cond_timedwait(_cond, _mutex, &abst); | |
| 5896 assert_status(status == 0 || status == EINTR || | |
| 5897 status == ETIME || status == ETIMEDOUT, | |
| 5898 status, "cond_timedwait"); | |
| 5899 if (!FilterSpuriousWakeups) break ; // previous semantics | |
| 5900 if (status == ETIME || status == ETIMEDOUT) break ; | |
| 5901 // We consume and ignore EINTR and spurious wakeups. | |
| 5902 } | |
| 5903 -- _nParked ; | |
| 5904 if (_Event >= 0) ret = OS_OK ; | |
| 5905 _Event = 0 ; | |
| 5906 status = os::Solaris::mutex_unlock(_mutex); | |
| 5907 assert_status(status == 0, status, "mutex_unlock"); | |
|
7629
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changeset
|
5908 // Paranoia to ensure our locked and lock-free paths interact |
|
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diff
changeset
|
5909 // correctly with each other. |
|
22ba8c8ce6a6
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diff
changeset
|
5910 OrderAccess::fence(); |
| 0 | 5911 return ret; |
| 5912 } | |
| 5913 | |
| 5914 void os::PlatformEvent::unpark() { | |
|
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changeset
|
5915 // Transitions for _Event: |
|
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8004902: correctness fixes motivated by contended locking work (6607129)
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diff
changeset
|
5916 // 0 :=> 1 |
|
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changeset
|
5917 // 1 :=> 1 |
|
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changeset
|
5918 // -1 :=> either 0 or 1; must signal target thread |
|
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changeset
|
5919 // That is, we can safely transition _Event from -1 to either |
|
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changeset
|
5920 // 0 or 1. Forcing 1 is slightly more efficient for back-to-back |
|
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changeset
|
5921 // unpark() calls. |
|
22ba8c8ce6a6
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changeset
|
5922 // See also: "Semaphores in Plan 9" by Mullender & Cox |
|
22ba8c8ce6a6
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|
5923 // |
|
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changeset
|
5924 // Note: Forcing a transition from "-1" to "1" on an unpark() means |
|
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changeset
|
5925 // that it will take two back-to-back park() calls for the owning |
|
22ba8c8ce6a6
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changeset
|
5926 // thread to block. This has the benefit of forcing a spurious return |
|
22ba8c8ce6a6
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diff
changeset
|
5927 // from the first park() call after an unpark() call which will help |
|
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diff
changeset
|
5928 // shake out uses of park() and unpark() without condition variables. |
|
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changeset
|
5929 |
|
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changeset
|
5930 if (Atomic::xchg(1, &_Event) >= 0) return; |
| 0 | 5931 |
| 5932 // If the thread associated with the event was parked, wake it. | |
|
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|
5933 // Wait for the thread assoc with the PlatformEvent to vacate. |
|
22ba8c8ce6a6
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diff
changeset
|
5934 int status = os::Solaris::mutex_lock(_mutex); |
|
22ba8c8ce6a6
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changeset
|
5935 assert_status(status == 0, status, "mutex_lock"); |
|
22ba8c8ce6a6
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changeset
|
5936 int AnyWaiters = _nParked; |
|
22ba8c8ce6a6
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changeset
|
5937 status = os::Solaris::mutex_unlock(_mutex); |
|
22ba8c8ce6a6
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diff
changeset
|
5938 assert_status(status == 0, status, "mutex_unlock"); |
|
22ba8c8ce6a6
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changeset
|
5939 guarantee(AnyWaiters == 0 || AnyWaiters == 1, "invariant"); |
|
22ba8c8ce6a6
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changeset
|
5940 if (AnyWaiters != 0) { |
|
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changeset
|
5941 // We intentional signal *after* dropping the lock |
|
22ba8c8ce6a6
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changeset
|
5942 // to avoid a common class of futile wakeups. |
|
22ba8c8ce6a6
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changeset
|
5943 status = os::Solaris::cond_signal(_cond); |
|
22ba8c8ce6a6
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diff
changeset
|
5944 assert_status(status == 0, status, "cond_signal"); |
| 0 | 5945 } |
| 5946 } | |
| 5947 | |
| 5948 // JSR166 | |
| 5949 // ------------------------------------------------------- | |
| 5950 | |
| 5951 /* | |
| 5952 * The solaris and linux implementations of park/unpark are fairly | |
| 5953 * conservative for now, but can be improved. They currently use a | |
| 5954 * mutex/condvar pair, plus _counter. | |
| 5955 * Park decrements _counter if > 0, else does a condvar wait. Unpark | |
| 5956 * sets count to 1 and signals condvar. Only one thread ever waits | |
| 5957 * on the condvar. Contention seen when trying to park implies that someone | |
| 5958 * is unparking you, so don't wait. And spurious returns are fine, so there | |
| 5959 * is no need to track notifications. | |
| 5960 */ | |
| 5961 | |
| 5962 #define MAX_SECS 100000000 | |
| 5963 /* | |
| 5964 * This code is common to linux and solaris and will be moved to a | |
| 5965 * common place in dolphin. | |
| 5966 * | |
| 5967 * The passed in time value is either a relative time in nanoseconds | |
| 5968 * or an absolute time in milliseconds. Either way it has to be unpacked | |
| 5969 * into suitable seconds and nanoseconds components and stored in the | |
| 5970 * given timespec structure. | |
| 5971 * Given time is a 64-bit value and the time_t used in the timespec is only | |
| 5972 * a signed-32-bit value (except on 64-bit Linux) we have to watch for | |
| 5973 * overflow if times way in the future are given. Further on Solaris versions | |
| 5974 * prior to 10 there is a restriction (see cond_timedwait) that the specified | |
| 5975 * number of seconds, in abstime, is less than current_time + 100,000,000. | |
| 5976 * As it will be 28 years before "now + 100000000" will overflow we can | |
| 5977 * ignore overflow and just impose a hard-limit on seconds using the value | |
| 5978 * of "now + 100,000,000". This places a limit on the timeout of about 3.17 | |
| 5979 * years from "now". | |
| 5980 */ | |
| 5981 static void unpackTime(timespec* absTime, bool isAbsolute, jlong time) { | |
| 5982 assert (time > 0, "convertTime"); | |
| 5983 | |
| 5984 struct timeval now; | |
| 5985 int status = gettimeofday(&now, NULL); | |
| 5986 assert(status == 0, "gettimeofday"); | |
| 5987 | |
| 5988 time_t max_secs = now.tv_sec + MAX_SECS; | |
| 5989 | |
| 5990 if (isAbsolute) { | |
| 5991 jlong secs = time / 1000; | |
| 5992 if (secs > max_secs) { | |
| 5993 absTime->tv_sec = max_secs; | |
| 5994 } | |
| 5995 else { | |
| 5996 absTime->tv_sec = secs; | |
| 5997 } | |
| 5998 absTime->tv_nsec = (time % 1000) * NANOSECS_PER_MILLISEC; | |
| 5999 } | |
| 6000 else { | |
| 6001 jlong secs = time / NANOSECS_PER_SEC; | |
| 6002 if (secs >= MAX_SECS) { | |
| 6003 absTime->tv_sec = max_secs; | |
| 6004 absTime->tv_nsec = 0; | |
| 6005 } | |
| 6006 else { | |
| 6007 absTime->tv_sec = now.tv_sec + secs; | |
| 6008 absTime->tv_nsec = (time % NANOSECS_PER_SEC) + now.tv_usec*1000; | |
| 6009 if (absTime->tv_nsec >= NANOSECS_PER_SEC) { | |
| 6010 absTime->tv_nsec -= NANOSECS_PER_SEC; | |
| 6011 ++absTime->tv_sec; // note: this must be <= max_secs | |
| 6012 } | |
| 6013 } | |
| 6014 } | |
| 6015 assert(absTime->tv_sec >= 0, "tv_sec < 0"); | |
| 6016 assert(absTime->tv_sec <= max_secs, "tv_sec > max_secs"); | |
| 6017 assert(absTime->tv_nsec >= 0, "tv_nsec < 0"); | |
| 6018 assert(absTime->tv_nsec < NANOSECS_PER_SEC, "tv_nsec >= nanos_per_sec"); | |
| 6019 } | |
| 6020 | |
| 6021 void Parker::park(bool isAbsolute, jlong time) { | |
|
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diff
changeset
|
6022 // Ideally we'd do something useful while spinning, such |
|
22ba8c8ce6a6
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dcubed
parents:
7456
diff
changeset
|
6023 // as calling unpackTime(). |
| 0 | 6024 |
| 6025 // Optional fast-path check: | |
| 6026 // Return immediately if a permit is available. | |
|
7629
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diff
changeset
|
6027 // 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
|
6028 // since we are doing a lock-free update to _counter. |
|
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
7456
diff
changeset
|
6029 if (Atomic::xchg(0, &_counter) > 0) return; |
| 0 | 6030 |
| 6031 // Optional fast-exit: Check interrupt before trying to wait | |
| 6032 Thread* thread = Thread::current(); | |
| 6033 assert(thread->is_Java_thread(), "Must be JavaThread"); | |
| 6034 JavaThread *jt = (JavaThread *)thread; | |
| 6035 if (Thread::is_interrupted(thread, false)) { | |
| 6036 return; | |
| 6037 } | |
| 6038 | |
| 6039 // First, demultiplex/decode time arguments | |
| 6040 timespec absTime; | |
|
1865
1c352af0135d
6763959: java.util.concurrent.locks.LockSupport.parkUntil(0) blocks forever
acorn
parents:
1681
diff
changeset
|
6041 if (time < 0 || (isAbsolute && time == 0) ) { // don't wait at all |
| 0 | 6042 return; |
| 6043 } | |
| 6044 if (time > 0) { | |
| 6045 // Warning: this code might be exposed to the old Solaris time | |
| 6046 // round-down bugs. Grep "roundingFix" for details. | |
| 6047 unpackTime(&absTime, isAbsolute, time); | |
| 6048 } | |
| 6049 | |
| 6050 // Enter safepoint region | |
| 6051 // Beware of deadlocks such as 6317397. | |
| 6052 // The per-thread Parker:: _mutex is a classic leaf-lock. | |
| 6053 // In particular a thread must never block on the Threads_lock while | |
| 6054 // holding the Parker:: mutex. If safepoints are pending both the | |
| 6055 // the ThreadBlockInVM() CTOR and DTOR may grab Threads_lock. | |
| 6056 ThreadBlockInVM tbivm(jt); | |
| 6057 | |
| 6058 // Don't wait if cannot get lock since interference arises from | |
| 6059 // unblocking. Also. check interrupt before trying wait | |
| 6060 if (Thread::is_interrupted(thread, false) || | |
| 6061 os::Solaris::mutex_trylock(_mutex) != 0) { | |
| 6062 return; | |
| 6063 } | |
| 6064 | |
| 6065 int status ; | |
| 6066 | |
| 6067 if (_counter > 0) { // no wait needed | |
| 6068 _counter = 0; | |
| 6069 status = os::Solaris::mutex_unlock(_mutex); | |
| 6070 assert (status == 0, "invariant") ; | |
|
7629
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|
6071 // Paranoia to ensure our locked and lock-free paths interact |
|
22ba8c8ce6a6
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7456
diff
changeset
|
6072 // correctly with each other and Java-level accesses. |
|
1117
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6822370: ReentrantReadWriteLock: threads hung when there are no threads holding onto the lock (Netra x4450)
dholmes
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diff
changeset
|
6073 OrderAccess::fence(); |
| 0 | 6074 return; |
| 6075 } | |
| 6076 | |
| 6077 #ifdef ASSERT | |
| 6078 // Don't catch signals while blocked; let the running threads have the signals. | |
| 6079 // (This allows a debugger to break into the running thread.) | |
| 6080 sigset_t oldsigs; | |
| 6081 sigset_t* allowdebug_blocked = os::Solaris::allowdebug_blocked_signals(); | |
| 6082 thr_sigsetmask(SIG_BLOCK, allowdebug_blocked, &oldsigs); | |
| 6083 #endif | |
| 6084 | |
| 6085 OSThreadWaitState osts(thread->osthread(), false /* not Object.wait() */); | |
| 6086 jt->set_suspend_equivalent(); | |
| 6087 // cleared by handle_special_suspend_equivalent_condition() or java_suspend_self() | |
| 6088 | |
| 6089 // Do this the hard way by blocking ... | |
| 6090 // See http://monaco.sfbay/detail.jsf?cr=5094058. | |
| 6091 // TODO-FIXME: for Solaris SPARC set fprs.FEF=0 prior to parking. | |
| 6092 // Only for SPARC >= V8PlusA | |
| 6093 #if defined(__sparc) && defined(COMPILER2) | |
| 6094 if (ClearFPUAtPark) { _mark_fpu_nosave() ; } | |
| 6095 #endif | |
| 6096 | |
| 6097 if (time == 0) { | |
| 6098 status = os::Solaris::cond_wait (_cond, _mutex) ; | |
| 6099 } else { | |
| 6100 status = os::Solaris::cond_timedwait (_cond, _mutex, &absTime); | |
| 6101 } | |
| 6102 // Note that an untimed cond_wait() can sometimes return ETIME on older | |
| 6103 // versions of the Solaris. | |
| 6104 assert_status(status == 0 || status == EINTR || | |
| 6105 status == ETIME || status == ETIMEDOUT, | |
| 6106 status, "cond_timedwait"); | |
| 6107 | |
| 6108 #ifdef ASSERT | |
| 6109 thr_sigsetmask(SIG_SETMASK, &oldsigs, NULL); | |
| 6110 #endif | |
| 6111 _counter = 0 ; | |
| 6112 status = os::Solaris::mutex_unlock(_mutex); | |
| 6113 assert_status(status == 0, status, "mutex_unlock") ; | |
|
7629
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|
6114 // Paranoia to ensure our locked and lock-free paths interact |
|
22ba8c8ce6a6
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dcubed
parents:
7456
diff
changeset
|
6115 // correctly with each other and Java-level accesses. |
|
22ba8c8ce6a6
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dcubed
parents:
7456
diff
changeset
|
6116 OrderAccess::fence(); |
| 0 | 6117 |
| 6118 // If externally suspended while waiting, re-suspend | |
| 6119 if (jt->handle_special_suspend_equivalent_condition()) { | |
| 6120 jt->java_suspend_self(); | |
| 6121 } | |
| 6122 } | |
| 6123 | |
| 6124 void Parker::unpark() { | |
| 6125 int s, status ; | |
| 6126 status = os::Solaris::mutex_lock (_mutex) ; | |
| 6127 assert (status == 0, "invariant") ; | |
| 6128 s = _counter; | |
| 6129 _counter = 1; | |
| 6130 status = os::Solaris::mutex_unlock (_mutex) ; | |
| 6131 assert (status == 0, "invariant") ; | |
| 6132 | |
| 6133 if (s < 1) { | |
| 6134 status = os::Solaris::cond_signal (_cond) ; | |
| 6135 assert (status == 0, "invariant") ; | |
| 6136 } | |
| 6137 } | |
| 6138 | |
| 6139 extern char** environ; | |
| 6140 | |
| 6141 // Run the specified command in a separate process. Return its exit value, | |
| 6142 // or -1 on failure (e.g. can't fork a new process). | |
| 6143 // Unlike system(), this function can be called from signal handler. It | |
| 6144 // doesn't block SIGINT et al. | |
| 6145 int os::fork_and_exec(char* cmd) { | |
| 6146 char * argv[4]; | |
| 6147 argv[0] = (char *)"sh"; | |
| 6148 argv[1] = (char *)"-c"; | |
| 6149 argv[2] = cmd; | |
| 6150 argv[3] = NULL; | |
| 6151 | |
| 6152 // fork is async-safe, fork1 is not so can't use in signal handler | |
| 6153 pid_t pid; | |
| 6154 Thread* t = ThreadLocalStorage::get_thread_slow(); | |
| 6155 if (t != NULL && t->is_inside_signal_handler()) { | |
| 6156 pid = fork(); | |
| 6157 } else { | |
| 6158 pid = fork1(); | |
| 6159 } | |
| 6160 | |
| 6161 if (pid < 0) { | |
| 6162 // fork failed | |
| 6163 warning("fork failed: %s", strerror(errno)); | |
| 6164 return -1; | |
| 6165 | |
| 6166 } else if (pid == 0) { | |
| 6167 // child process | |
| 6168 | |
| 6169 // try to be consistent with system(), which uses "/usr/bin/sh" on Solaris | |
| 6170 execve("/usr/bin/sh", argv, environ); | |
| 6171 | |
| 6172 // execve failed | |
| 6173 _exit(-1); | |
| 6174 | |
| 6175 } else { | |
| 6176 // copied from J2SE ..._waitForProcessExit() in UNIXProcess_md.c; we don't | |
| 6177 // care about the actual exit code, for now. | |
| 6178 | |
| 6179 int status; | |
| 6180 | |
| 6181 // Wait for the child process to exit. This returns immediately if | |
| 6182 // the child has already exited. */ | |
| 6183 while (waitpid(pid, &status, 0) < 0) { | |
| 6184 switch (errno) { | |
| 6185 case ECHILD: return 0; | |
| 6186 case EINTR: break; | |
| 6187 default: return -1; | |
| 6188 } | |
| 6189 } | |
| 6190 | |
| 6191 if (WIFEXITED(status)) { | |
| 6192 // The child exited normally; get its exit code. | |
| 6193 return WEXITSTATUS(status); | |
| 6194 } else if (WIFSIGNALED(status)) { | |
| 6195 // The child exited because of a signal | |
| 6196 // The best value to return is 0x80 + signal number, | |
| 6197 // because that is what all Unix shells do, and because | |
| 6198 // it allows callers to distinguish between process exit and | |
| 6199 // process death by signal. | |
| 6200 return 0x80 + WTERMSIG(status); | |
| 6201 } else { | |
| 6202 // Unknown exit code; pass it through | |
| 6203 return status; | |
| 6204 } | |
| 6205 } | |
| 6206 } | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6207 |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6208 // is_headless_jre() |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6209 // |
|
4082
36b057451829
7110017: is_headless_jre should be updated to reflect the new location of awt toolkit libraries
dholmes
parents:
4006
diff
changeset
|
6210 // 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
|
6211 // 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
|
6212 // |
|
4082
36b057451829
7110017: is_headless_jre should be updated to reflect the new location of awt toolkit libraries
dholmes
parents:
4006
diff
changeset
|
6213 // 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
|
6214 // 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
|
6215 // |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6216 bool os::is_headless_jre() { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6217 struct stat statbuf; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6218 char buf[MAXPATHLEN]; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6219 char libmawtpath[MAXPATHLEN]; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6220 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
|
6221 const char *new_xawtstr = "/libawt_xawt.so"; |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6222 char *p; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6223 |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6224 // Get path to libjvm.so |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6225 os::jvm_path(buf, sizeof(buf)); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6226 |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6227 // Get rid of libjvm.so |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6228 p = strrchr(buf, '/'); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6229 if (p == NULL) return false; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6230 else *p = '\0'; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6231 |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6232 // Get rid of client or server |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6233 p = strrchr(buf, '/'); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6234 if (p == NULL) return false; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6235 else *p = '\0'; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6236 |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6237 // check xawt/libmawt.so |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6238 strcpy(libmawtpath, buf); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6239 strcat(libmawtpath, xawtstr); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6240 if (::stat(libmawtpath, &statbuf) == 0) return false; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6241 |
|
4082
36b057451829
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dholmes
parents:
4006
diff
changeset
|
6242 // check libawt_xawt.so |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6243 strcpy(libmawtpath, buf); |
|
4082
36b057451829
7110017: is_headless_jre should be updated to reflect the new location of awt toolkit libraries
dholmes
parents:
4006
diff
changeset
|
6244 strcat(libmawtpath, new_xawtstr); |
|
1681
126ea7725993
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bobv
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diff
changeset
|
6245 if (::stat(libmawtpath, &statbuf) == 0) return false; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6246 |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6247 return true; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1642
diff
changeset
|
6248 } |
|
126ea7725993
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bobv
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diff
changeset
|
6249 |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6250 size_t os::write(int fd, const void *buf, unsigned int nBytes) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
6251 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
|
6252 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6253 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6254 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
|
6255 return ::close(fd); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6256 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6257 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6258 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
|
6259 return ::close(fd); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6260 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6261 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6262 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
|
6263 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
|
6264 } |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6265 |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6266 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
|
6267 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
|
6268 } |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6269 |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6270 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
|
6271 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
|
6272 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6273 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6274 // 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
|
6275 // 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
|
6276 // 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
|
6277 // "wait forever" value. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6278 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6279 int os::timeout(int fd, long timeout) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6280 int res; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6281 struct timeval t; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6282 julong prevtime, newtime; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6283 static const char* aNull = 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6284 struct pollfd pfd; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6285 pfd.fd = fd; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6286 pfd.events = POLLIN; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6287 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6288 gettimeofday(&t, &aNull); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6289 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
|
6290 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6291 for(;;) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6292 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
|
6293 if(res == OS_ERR && errno == EINTR) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6294 if(timeout != -1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6295 gettimeofday(&t, &aNull); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6296 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
|
6297 timeout -= newtime - prevtime; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6298 if(timeout <= 0) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6299 return OS_OK; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6300 prevtime = newtime; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6301 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6302 } else return res; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6303 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6304 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6305 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6306 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
|
6307 int _result; |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6308 INTERRUPTIBLE_NORESTART(::connect(fd, him, len), _result,\ |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6309 os::Solaris::clear_interrupted); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6310 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6311 // 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
|
6312 // one of two values when errno == EINTR |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6313 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6314 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
|
6315 && (errno == EINTR)) { |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6316 /* 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
|
6317 INTERRUPTIBLE(::connect(fd, him, len), _result,\ |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6318 os::Solaris::clear_interrupted); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6319 /* undo these changes */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6320 if (_result == OS_ERR) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6321 if (errno == EALREADY) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6322 errno = EINPROGRESS; /* fall through */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6323 } else if (errno == EISCONN) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6324 errno = 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6325 return OS_OK; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6326 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6327 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6328 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6329 return _result; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6330 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6331 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6332 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
|
6333 if (fd < 0) { |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6334 return OS_ERR; |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6335 } |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6336 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
|
6337 os::Solaris::clear_interrupted); |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6338 } |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6339 |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6340 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
|
6341 sockaddr* from, socklen_t* fromlen) { |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6342 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
|
6343 os::Solaris::clear_interrupted); |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6344 } |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6345 |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6346 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
|
6347 struct sockaddr* to, socklen_t tolen) { |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6348 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
|
6349 os::Solaris::clear_interrupted); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6350 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6351 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
6352 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
|
6353 if (fd < 0) { |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6354 return OS_OK; |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6355 } |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6356 int ret; |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6357 RESTARTABLE(::ioctl(fd, FIONREAD, pbytes), ret); |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6358 // 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
|
6359 // 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
|
6360 return (ret == OS_ERR) ? 0 : 1; |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6361 } |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6362 |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6363 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
|
6364 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
|
6365 os::Solaris::clear_interrupted); |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4082
diff
changeset
|
6366 } |
|
6200
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6367 |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6368 // Get the default path to the core file |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6369 // Returns the length of the string |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6370 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
|
6371 const char* p = get_current_directory(buffer, bufferSize); |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6372 |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6373 if (p == NULL) { |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6374 assert(p != NULL, "failed to get current directory"); |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6375 return 0; |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6376 } |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6377 |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6378 return strlen(buffer); |
|
65906dc96aa1
7129724: MAC: Core file location is wrong in crash report
mikael
parents:
6197
diff
changeset
|
6379 } |
|
12110
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
11112
diff
changeset
|
6380 |
|
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
11112
diff
changeset
|
6381 #ifndef PRODUCT |
|
4c84d351cca9
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6382 void TestReserveMemorySpecial_test() { |
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6383 // No tests available for this platform |
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6384 } |
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6385 #endif |