1 /*
2 * Copyright (c) 2003, 2017, Oracle and/or its affiliates. All rights reserved.
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 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include <fcntl.h>
26 #include "precompiled.hpp"
27 #include "code/codeCache.hpp"
28 #include "compiler/compileBroker.hpp"
29 #include "compiler/disassembler.hpp"
30 #include "gc/shared/collectedHeap.hpp"
31 #include "logging/logConfiguration.hpp"
32 #include "prims/jvm.h"
33 #include "prims/whitebox.hpp"
34 #include "runtime/arguments.hpp"
35 #include "runtime/atomic.hpp"
36 #include "runtime/frame.inline.hpp"
37 #include "runtime/init.hpp"
38 #include "runtime/os.hpp"
39 #include "runtime/thread.inline.hpp"
40 #include "runtime/vmThread.hpp"
41 #include "runtime/vm_operations.hpp"
42 #include "runtime/vm_version.hpp"
43 #include "services/memTracker.hpp"
44 #include "trace/traceMacros.hpp"
45 #include "utilities/debug.hpp"
46 #include "utilities/decoder.hpp"
47 #include "utilities/defaultStream.hpp"
48 #include "utilities/errorReporter.hpp"
49 #include "utilities/events.hpp"
50 #include "utilities/vmError.hpp"
51
52 // List of environment variables that should be reported in error log file.
53 const char *env_list[] = {
54 // All platforms
55 "JAVA_HOME", "JRE_HOME", "JAVA_TOOL_OPTIONS", "_JAVA_OPTIONS", "CLASSPATH",
56 "JAVA_COMPILER", "PATH", "USERNAME",
57
58 // Env variables that are defined on Solaris/Linux/BSD
59 "LD_LIBRARY_PATH", "LD_PRELOAD", "SHELL", "DISPLAY",
60 "HOSTTYPE", "OSTYPE", "ARCH", "MACHTYPE",
61
62 // defined on Linux
63 "LD_ASSUME_KERNEL", "_JAVA_SR_SIGNUM",
64
65 // defined on Darwin
66 "DYLD_LIBRARY_PATH", "DYLD_FALLBACK_LIBRARY_PATH",
67 "DYLD_FRAMEWORK_PATH", "DYLD_FALLBACK_FRAMEWORK_PATH",
68 "DYLD_INSERT_LIBRARIES",
69
70 // defined on Windows
71 "OS", "PROCESSOR_IDENTIFIER", "_ALT_JAVA_HOME_DIR",
72
73 (const char *)0
74 };
75
76 // A simple parser for -XX:OnError, usage:
77 // ptr = OnError;
78 // while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr) != NULL)
79 // ... ...
80 static char* next_OnError_command(char* buf, int buflen, const char** ptr) {
81 if (ptr == NULL || *ptr == NULL) return NULL;
82
83 const char* cmd = *ptr;
84
85 // skip leading blanks or ';'
86 while (*cmd == ' ' || *cmd == ';') cmd++;
87
88 if (*cmd == '\0') return NULL;
89
90 const char * cmdend = cmd;
91 while (*cmdend != '\0' && *cmdend != ';') cmdend++;
92
93 Arguments::copy_expand_pid(cmd, cmdend - cmd, buf, buflen);
94
95 *ptr = (*cmdend == '\0' ? cmdend : cmdend + 1);
96 return buf;
97 }
98
99 static void print_bug_submit_message(outputStream *out, Thread *thread) {
100 if (out == NULL) return;
101 out->print_raw_cr("# If you would like to submit a bug report, please visit:");
102 out->print_raw ("# ");
103 out->print_raw_cr(Arguments::java_vendor_url_bug());
104 // If the crash is in native code, encourage user to submit a bug to the
105 // provider of that code.
106 if (thread && thread->is_Java_thread() &&
107 !thread->is_hidden_from_external_view()) {
108 JavaThread* jt = (JavaThread*)thread;
109 if (jt->thread_state() == _thread_in_native) {
110 out->print_cr("# The crash happened outside the Java Virtual Machine in native code.\n# See problematic frame for where to report the bug.");
111 }
112 }
113 out->print_raw_cr("#");
114 }
115
116 bool VMError::coredump_status;
117 char VMError::coredump_message[O_BUFLEN];
118
119 void VMError::record_coredump_status(const char* message, bool status) {
120 coredump_status = status;
121 strncpy(coredump_message, message, sizeof(coredump_message));
122 coredump_message[sizeof(coredump_message)-1] = 0;
123 }
124
125 // Return a string to describe the error
126 char* VMError::error_string(char* buf, int buflen) {
127 char signame_buf[64];
128 const char *signame = os::exception_name(_id, signame_buf, sizeof(signame_buf));
129
130 if (signame) {
131 jio_snprintf(buf, buflen,
132 "%s (0x%x) at pc=" PTR_FORMAT ", pid=%d, tid=" UINTX_FORMAT,
133 signame, _id, _pc,
134 os::current_process_id(), os::current_thread_id());
135 } else if (_filename != NULL && _lineno > 0) {
136 // skip directory names
137 char separator = os::file_separator()[0];
138 const char *p = strrchr(_filename, separator);
139 int n = jio_snprintf(buf, buflen,
140 "Internal Error at %s:%d, pid=%d, tid=" UINTX_FORMAT,
141 p ? p + 1 : _filename, _lineno,
142 os::current_process_id(), os::current_thread_id());
143 if (n >= 0 && n < buflen && _message) {
144 if (strlen(_detail_msg) > 0) {
145 jio_snprintf(buf + n, buflen - n, "%s%s: %s",
146 os::line_separator(), _message, _detail_msg);
147 } else {
148 jio_snprintf(buf + n, buflen - n, "%sError: %s",
149 os::line_separator(), _message);
150 }
151 }
152 } else {
153 jio_snprintf(buf, buflen,
154 "Internal Error (0x%x), pid=%d, tid=" UINTX_FORMAT,
155 _id, os::current_process_id(), os::current_thread_id());
156 }
157
158 return buf;
159 }
160
161 void VMError::print_stack_trace(outputStream* st, JavaThread* jt,
162 char* buf, int buflen, bool verbose) {
163 #ifdef ZERO
164 if (jt->zero_stack()->sp() && jt->top_zero_frame()) {
165 // StackFrameStream uses the frame anchor, which may not have
166 // been set up. This can be done at any time in Zero, however,
167 // so if it hasn't been set up then we just set it up now and
168 // clear it again when we're done.
169 bool has_last_Java_frame = jt->has_last_Java_frame();
170 if (!has_last_Java_frame)
171 jt->set_last_Java_frame();
172 st->print("Java frames:");
173
174 // If the top frame is a Shark frame and the frame anchor isn't
175 // set up then it's possible that the information in the frame
176 // is garbage: it could be from a previous decache, or it could
177 // simply have never been written. So we print a warning...
178 StackFrameStream sfs(jt);
179 if (!has_last_Java_frame && !sfs.is_done()) {
180 if (sfs.current()->zeroframe()->is_shark_frame()) {
181 st->print(" (TOP FRAME MAY BE JUNK)");
182 }
183 }
184 st->cr();
185
186 // Print the frames
187 for(int i = 0; !sfs.is_done(); sfs.next(), i++) {
188 sfs.current()->zero_print_on_error(i, st, buf, buflen);
189 st->cr();
190 }
191
192 // Reset the frame anchor if necessary
193 if (!has_last_Java_frame)
194 jt->reset_last_Java_frame();
195 }
196 #else
197 if (jt->has_last_Java_frame()) {
198 st->print_cr("Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)");
199 for(StackFrameStream sfs(jt); !sfs.is_done(); sfs.next()) {
200 sfs.current()->print_on_error(st, buf, buflen, verbose);
201 st->cr();
202 }
203 }
204 #endif // ZERO
205 }
206
207 void VMError::print_native_stack(outputStream* st, frame fr, Thread* t, char* buf, int buf_size) {
208
209 // see if it's a valid frame
210 if (fr.pc()) {
211 st->print_cr("Native frames: (J=compiled Java code, A=aot compiled Java code, j=interpreted, Vv=VM code, C=native code)");
212
213 int count = 0;
214 while (count++ < StackPrintLimit) {
215 fr.print_on_error(st, buf, buf_size);
216 st->cr();
217 // Compiled code may use EBP register on x86 so it looks like
218 // non-walkable C frame. Use frame.sender() for java frames.
219 if (t && t->is_Java_thread()) {
220 // Catch very first native frame by using stack address.
221 // For JavaThread stack_base and stack_size should be set.
222 if (!t->on_local_stack((address)(fr.real_fp() + 1))) {
223 break;
224 }
225 if (fr.is_java_frame() || fr.is_native_frame() || fr.is_runtime_frame()) {
226 RegisterMap map((JavaThread*)t, false); // No update
227 fr = fr.sender(&map);
228 } else {
229 fr = os::get_sender_for_C_frame(&fr);
230 }
231 } else {
232 // is_first_C_frame() does only simple checks for frame pointer,
233 // it will pass if java compiled code has a pointer in EBP.
234 if (os::is_first_C_frame(&fr)) break;
235 fr = os::get_sender_for_C_frame(&fr);
236 }
237 }
238
239 if (count > StackPrintLimit) {
240 st->print_cr("...<more frames>...");
241 }
242
243 st->cr();
244 }
245 }
246
247 static void print_oom_reasons(outputStream* st) {
248 st->print_cr("# Possible reasons:");
249 st->print_cr("# The system is out of physical RAM or swap space");
250 if (UseCompressedOops) {
251 st->print_cr("# The process is running with CompressedOops enabled, and the Java Heap may be blocking the growth of the native heap");
252 }
253 if (LogBytesPerWord == 2) {
254 st->print_cr("# In 32 bit mode, the process size limit was hit");
255 }
256 st->print_cr("# Possible solutions:");
257 st->print_cr("# Reduce memory load on the system");
258 st->print_cr("# Increase physical memory or swap space");
259 st->print_cr("# Check if swap backing store is full");
260 if (LogBytesPerWord == 2) {
261 st->print_cr("# Use 64 bit Java on a 64 bit OS");
262 }
263 st->print_cr("# Decrease Java heap size (-Xmx/-Xms)");
264 st->print_cr("# Decrease number of Java threads");
265 st->print_cr("# Decrease Java thread stack sizes (-Xss)");
266 st->print_cr("# Set larger code cache with -XX:ReservedCodeCacheSize=");
267 if (UseCompressedOops) {
268 switch (Universe::narrow_oop_mode()) {
269 case Universe::UnscaledNarrowOop:
270 st->print_cr("# JVM is running with Unscaled Compressed Oops mode in which the Java heap is");
271 st->print_cr("# placed in the first 4GB address space. The Java Heap base address is the");
272 st->print_cr("# maximum limit for the native heap growth. Please use -XX:HeapBaseMinAddress");
273 st->print_cr("# to set the Java Heap base and to place the Java Heap above 4GB virtual address.");
274 break;
275 case Universe::ZeroBasedNarrowOop:
276 st->print_cr("# JVM is running with Zero Based Compressed Oops mode in which the Java heap is");
277 st->print_cr("# placed in the first 32GB address space. The Java Heap base address is the");
278 st->print_cr("# maximum limit for the native heap growth. Please use -XX:HeapBaseMinAddress");
279 st->print_cr("# to set the Java Heap base and to place the Java Heap above 32GB virtual address.");
280 break;
281 default:
282 break;
283 }
284 }
285 st->print_cr("# This output file may be truncated or incomplete.");
286 }
287
288 static const char* gc_mode() {
289 if (UseG1GC) return "g1 gc";
290 if (UseParallelGC) return "parallel gc";
291 if (UseConcMarkSweepGC) return "concurrent mark sweep gc";
292 if (UseSerialGC) return "serial gc";
293 return "ERROR in GC mode";
294 }
295
296 static void report_vm_version(outputStream* st, char* buf, int buflen) {
297 // VM version
298 st->print_cr("#");
299 JDK_Version::current().to_string(buf, buflen);
300 const char* runtime_name = JDK_Version::runtime_name() != NULL ?
301 JDK_Version::runtime_name() : "";
302 const char* runtime_version = JDK_Version::runtime_version() != NULL ?
303 JDK_Version::runtime_version() : "";
304 const char* jdk_debug_level = Abstract_VM_Version::printable_jdk_debug_level() != NULL ?
305 Abstract_VM_Version::printable_jdk_debug_level() : "";
306
307 st->print_cr("# JRE version: %s (%s) (%sbuild %s)", runtime_name, buf,
308 jdk_debug_level, runtime_version);
309
310 // This is the long version with some default settings added
311 st->print_cr("# Java VM: %s (%s%s, %s%s%s%s%s, %s, %s)",
312 Abstract_VM_Version::vm_name(),
313 jdk_debug_level,
314 Abstract_VM_Version::vm_release(),
315 Abstract_VM_Version::vm_info_string(),
316 TieredCompilation ? ", tiered" : "",
317 #if INCLUDE_JVMCI
318 EnableJVMCI ? ", jvmci" : "",
319 UseJVMCICompiler ? ", jvmci compiler" : "",
320 #else
321 "", "",
322 #endif
323 UseCompressedOops ? ", compressed oops" : "",
324 gc_mode(),
325 Abstract_VM_Version::vm_platform_string()
326 );
327 }
328
329 // This is the main function to report a fatal error. Only one thread can
330 // call this function, so we don't need to worry about MT-safety. But it's
331 // possible that the error handler itself may crash or die on an internal
332 // error, for example, when the stack/heap is badly damaged. We must be
333 // able to handle recursive errors that happen inside error handler.
334 //
335 // Error reporting is done in several steps. If a crash or internal error
336 // occurred when reporting an error, the nested signal/exception handler
337 // can skip steps that are already (or partially) done. Error reporting will
338 // continue from the next step. This allows us to retrieve and print
339 // information that may be unsafe to get after a fatal error. If it happens,
340 // you may find nested report_and_die() frames when you look at the stack
341 // in a debugger.
342 //
343 // In general, a hang in error handler is much worse than a crash or internal
344 // error, as it's harder to recover from a hang. Deadlock can happen if we
345 // try to grab a lock that is already owned by current thread, or if the
346 // owner is blocked forever (e.g. in os::infinite_sleep()). If possible, the
347 // error handler and all the functions it called should avoid grabbing any
348 // lock. An important thing to notice is that memory allocation needs a lock.
349 //
350 // We should avoid using large stack allocated buffers. Many errors happen
351 // when stack space is already low. Making things even worse is that there
352 // could be nested report_and_die() calls on stack (see above). Only one
353 // thread can report error, so large buffers are statically allocated in data
354 // segment.
355
356 int VMError::_current_step;
357 const char* VMError::_current_step_info;
358
359 volatile jlong VMError::_reporting_start_time = -1;
360 volatile bool VMError::_reporting_did_timeout = false;
361 volatile jlong VMError::_step_start_time = -1;
362 volatile bool VMError::_step_did_timeout = false;
363
364 // Helper, return current timestamp for timeout handling.
365 jlong VMError::get_current_timestamp() {
366 return os::javaTimeNanos();
367 }
368 // Factor to translate the timestamp to seconds.
369 #define TIMESTAMP_TO_SECONDS_FACTOR (1000 * 1000 * 1000)
370
371 void VMError::record_reporting_start_time() {
372 const jlong now = get_current_timestamp();
373 Atomic::store(now, &_reporting_start_time);
374 }
375
376 jlong VMError::get_reporting_start_time() {
377 return Atomic::load(&_reporting_start_time);
378 }
379
380 void VMError::record_step_start_time() {
381 const jlong now = get_current_timestamp();
382 Atomic::store(now, &_step_start_time);
383 }
384
385 jlong VMError::get_step_start_time() {
386 return Atomic::load(&_step_start_time);
387 }
388
389 void VMError::report(outputStream* st, bool _verbose) {
390
391 # define BEGIN if (_current_step == 0) { _current_step = __LINE__;
392 # define STEP(s) } if (_current_step < __LINE__) { _current_step = __LINE__; _current_step_info = s; \
393 record_step_start_time(); _step_did_timeout = false;
394 # define END }
395
396 // don't allocate large buffer on stack
397 static char buf[O_BUFLEN];
398
399 BEGIN
400
401 STEP("printing fatal error message")
402
403 st->print_cr("#");
404 if (should_report_bug(_id)) {
405 st->print_cr("# A fatal error has been detected by the Java Runtime Environment:");
406 } else {
407 st->print_cr("# There is insufficient memory for the Java "
408 "Runtime Environment to continue.");
409 }
410
411 #ifndef PRODUCT
412 // Error handler self tests
413
414 // test secondary error handling. Test it twice, to test that resetting
415 // error handler after a secondary crash works.
416 STEP("test secondary crash 1")
417 if (_verbose && TestCrashInErrorHandler != 0) {
418 st->print_cr("Will crash now (TestCrashInErrorHandler=" UINTX_FORMAT ")...",
419 TestCrashInErrorHandler);
420 controlled_crash(TestCrashInErrorHandler);
421 }
422
423 STEP("test secondary crash 2")
424 if (_verbose && TestCrashInErrorHandler != 0) {
425 st->print_cr("Will crash now (TestCrashInErrorHandler=" UINTX_FORMAT ")...",
426 TestCrashInErrorHandler);
427 controlled_crash(TestCrashInErrorHandler);
428 }
429
430 // TestUnresponsiveErrorHandler: We want to test both step timeouts and global timeout.
431 // Step to global timeout ratio is 4:1, so in order to be absolutely sure we hit the
432 // global timeout, let's execute the timeout step five times.
433 // See corresponding test in test/runtime/ErrorHandling/TimeoutInErrorHandlingTest.java
434 #define TIMEOUT_TEST_STEP STEP("test unresponsive error reporting step") \
435 if (_verbose && TestUnresponsiveErrorHandler) { os::infinite_sleep(); }
436 TIMEOUT_TEST_STEP
437 TIMEOUT_TEST_STEP
438 TIMEOUT_TEST_STEP
439 TIMEOUT_TEST_STEP
440 TIMEOUT_TEST_STEP
441
442 STEP("test safefetch in error handler")
443 // test whether it is safe to use SafeFetch32 in Crash Handler. Test twice
444 // to test that resetting the signal handler works correctly.
445 if (_verbose && TestSafeFetchInErrorHandler) {
446 st->print_cr("Will test SafeFetch...");
447 if (CanUseSafeFetch32()) {
448 int* const invalid_pointer = (int*) get_segfault_address();
449 const int x = 0x76543210;
450 int i1 = SafeFetch32(invalid_pointer, x);
451 int i2 = SafeFetch32(invalid_pointer, x);
452 if (i1 == x && i2 == x) {
453 st->print_cr("SafeFetch OK."); // Correctly deflected and returned default pattern
454 } else {
455 st->print_cr("??");
456 }
457 } else {
458 st->print_cr("not possible; skipped.");
459 }
460 }
461 #endif // PRODUCT
462
463 STEP("printing type of error")
464
465 switch(_id) {
466 case OOM_MALLOC_ERROR:
467 case OOM_MMAP_ERROR:
468 if (_size) {
469 st->print("# Native memory allocation ");
470 st->print((_id == (int)OOM_MALLOC_ERROR) ? "(malloc) failed to allocate " :
471 "(mmap) failed to map ");
472 jio_snprintf(buf, sizeof(buf), SIZE_FORMAT, _size);
473 st->print("%s", buf);
474 st->print(" bytes");
475 if (strlen(_detail_msg) > 0) {
476 st->print(" for ");
477 st->print("%s", _detail_msg);
478 }
479 st->cr();
480 } else {
481 if (strlen(_detail_msg) > 0) {
482 st->print("# ");
483 st->print_cr("%s", _detail_msg);
484 }
485 }
486 // In error file give some solutions
487 if (_verbose) {
488 print_oom_reasons(st);
489 } else {
490 return; // that's enough for the screen
491 }
492 break;
493 case INTERNAL_ERROR:
494 default:
495 break;
496 }
497
498 STEP("printing exception/signal name")
499
500 st->print_cr("#");
501 st->print("# ");
502 // Is it an OS exception/signal?
503 if (os::exception_name(_id, buf, sizeof(buf))) {
504 st->print("%s", buf);
505 st->print(" (0x%x)", _id); // signal number
506 st->print(" at pc=" PTR_FORMAT, p2i(_pc));
507 } else {
508 if (should_report_bug(_id)) {
509 st->print("Internal Error");
510 } else {
511 st->print("Out of Memory Error");
512 }
513 if (_filename != NULL && _lineno > 0) {
514 #ifdef PRODUCT
515 // In product mode chop off pathname?
516 char separator = os::file_separator()[0];
517 const char *p = strrchr(_filename, separator);
518 const char *file = p ? p+1 : _filename;
519 #else
520 const char *file = _filename;
521 #endif
522 st->print(" (%s:%d)", file, _lineno);
523 } else {
524 st->print(" (0x%x)", _id);
525 }
526 }
527
528 STEP("printing current thread and pid")
529
530 // process id, thread id
531 st->print(", pid=%d", os::current_process_id());
532 st->print(", tid=" UINTX_FORMAT, os::current_thread_id());
533 st->cr();
534
535 STEP("printing error message")
536
537 if (should_report_bug(_id)) { // already printed the message.
538 // error message
539 if (strlen(_detail_msg) > 0) {
540 st->print_cr("# %s: %s", _message ? _message : "Error", _detail_msg);
541 } else if (_message) {
542 st->print_cr("# Error: %s", _message);
543 }
544 }
545
546 STEP("printing Java version string")
547
548 report_vm_version(st, buf, sizeof(buf));
549
550 STEP("printing problematic frame")
551
552 // Print current frame if we have a context (i.e. it's a crash)
553 if (_context) {
554 st->print_cr("# Problematic frame:");
555 st->print("# ");
556 frame fr = os::fetch_frame_from_context(_context);
557 fr.print_on_error(st, buf, sizeof(buf));
558 st->cr();
559 st->print_cr("#");
560 }
561
562 STEP("printing core file information")
563 st->print("# ");
564 if (CreateCoredumpOnCrash) {
565 if (coredump_status) {
566 st->print("Core dump will be written. Default location: %s", coredump_message);
567 } else {
568 st->print("No core dump will be written. %s", coredump_message);
569 }
570 } else {
571 st->print("CreateCoredumpOnCrash turned off, no core file dumped");
572 }
573 st->cr();
574 st->print_cr("#");
575
576 STEP("printing bug submit message")
577
578 if (should_report_bug(_id) && _verbose) {
579 print_bug_submit_message(st, _thread);
580 }
581
582 STEP("printing summary")
583
584 if (_verbose) {
585 st->cr();
586 st->print_cr("--------------- S U M M A R Y ------------");
587 st->cr();
588 }
589
590 STEP("printing VM option summary")
591
592 if (_verbose) {
593 // VM options
594 Arguments::print_summary_on(st);
595 st->cr();
596 }
597
598 STEP("printing summary machine and OS info")
599
600 if (_verbose) {
601 os::print_summary_info(st, buf, sizeof(buf));
602 }
603
604
605 STEP("printing date and time")
606
607 if (_verbose) {
608 os::print_date_and_time(st, buf, sizeof(buf));
609 }
610
611 STEP("printing thread")
612
613 if (_verbose) {
614 st->cr();
615 st->print_cr("--------------- T H R E A D ---------------");
616 st->cr();
617 }
618
619 STEP("printing current thread")
620
621 // current thread
622 if (_verbose) {
623 if (_thread) {
624 st->print("Current thread (" PTR_FORMAT "): ", p2i(_thread));
625 _thread->print_on_error(st, buf, sizeof(buf));
626 st->cr();
627 } else {
628 st->print_cr("Current thread is native thread");
629 }
630 st->cr();
631 }
632
633 STEP("printing current compile task")
634
635 if (_verbose && _thread && _thread->is_Compiler_thread()) {
636 CompilerThread* t = (CompilerThread*)_thread;
637 if (t->task()) {
638 st->cr();
639 st->print_cr("Current CompileTask:");
640 t->task()->print_line_on_error(st, buf, sizeof(buf));
641 st->cr();
642 }
643 }
644
645
646 STEP("printing stack bounds")
647
648 if (_verbose) {
649 st->print("Stack: ");
650
651 address stack_top;
652 size_t stack_size;
653
654 if (_thread) {
655 stack_top = _thread->stack_base();
656 stack_size = _thread->stack_size();
657 } else {
658 stack_top = os::current_stack_base();
659 stack_size = os::current_stack_size();
660 }
661
662 address stack_bottom = stack_top - stack_size;
663 st->print("[" PTR_FORMAT "," PTR_FORMAT "]", p2i(stack_bottom), p2i(stack_top));
664
665 frame fr = _context ? os::fetch_frame_from_context(_context)
666 : os::current_frame();
667
668 if (fr.sp()) {
669 st->print(", sp=" PTR_FORMAT, p2i(fr.sp()));
670 size_t free_stack_size = pointer_delta(fr.sp(), stack_bottom, 1024);
671 st->print(", free space=" SIZE_FORMAT "k", free_stack_size);
672 }
673
674 st->cr();
675 }
676
677 STEP("printing native stack")
678
679 if (_verbose) {
680 if (os::platform_print_native_stack(st, _context, buf, sizeof(buf))) {
681 // We have printed the native stack in platform-specific code
682 // Windows/x64 needs special handling.
683 } else {
684 frame fr = _context ? os::fetch_frame_from_context(_context)
685 : os::current_frame();
686
687 print_native_stack(st, fr, _thread, buf, sizeof(buf));
688 }
689 }
690
691 STEP("printing Java stack")
692
693 if (_verbose && _thread && _thread->is_Java_thread()) {
694 print_stack_trace(st, (JavaThread*)_thread, buf, sizeof(buf));
695 }
696
697 STEP("printing target Java thread stack")
698
699 // printing Java thread stack trace if it is involved in GC crash
700 if (_verbose && _thread && (_thread->is_Named_thread())) {
701 JavaThread* jt = ((NamedThread *)_thread)->processed_thread();
702 if (jt != NULL) {
703 st->print_cr("JavaThread " PTR_FORMAT " (nid = %d) was being processed", p2i(jt), jt->osthread()->thread_id());
704 print_stack_trace(st, jt, buf, sizeof(buf), true);
705 }
706 }
707
708 STEP("printing siginfo")
709
710 // signal no, signal code, address that caused the fault
711 if (_verbose && _siginfo) {
712 st->cr();
713 os::print_siginfo(st, _siginfo);
714 st->cr();
715 }
716
717 STEP("CDS archive access warning")
718
719 // Print an explicit hint if we crashed on access to the CDS archive.
720 if (_verbose && _siginfo) {
721 check_failing_cds_access(st, _siginfo);
722 st->cr();
723 }
724
725 STEP("printing register info")
726
727 // decode register contents if possible
728 if (_verbose && _context && Universe::is_fully_initialized()) {
729 os::print_register_info(st, _context);
730 st->cr();
731 }
732
733 STEP("printing registers, top of stack, instructions near pc")
734
735 // registers, top of stack, instructions near pc
736 if (_verbose && _context) {
737 os::print_context(st, _context);
738 st->cr();
739 }
740
741 STEP("printing code blob if possible")
742
743 if (_verbose && _context) {
744 CodeBlob* cb = CodeCache::find_blob(_pc);
745 if (cb != NULL) {
746 if (Interpreter::contains(_pc)) {
747 // The interpreter CodeBlob is very large so try to print the codelet instead.
748 InterpreterCodelet* codelet = Interpreter::codelet_containing(_pc);
749 if (codelet != NULL) {
750 codelet->print_on(st);
751 Disassembler::decode(codelet->code_begin(), codelet->code_end(), st);
752 }
753 } else {
754 StubCodeDesc* desc = StubCodeDesc::desc_for(_pc);
755 if (desc != NULL) {
756 desc->print_on(st);
757 Disassembler::decode(desc->begin(), desc->end(), st);
758 } else {
759 Disassembler::decode(cb, st);
760 st->cr();
761 }
762 }
763 }
764 }
765
766 STEP("printing VM operation")
767
768 if (_verbose && _thread && _thread->is_VM_thread()) {
769 VMThread* t = (VMThread*)_thread;
770 VM_Operation* op = t->vm_operation();
771 if (op) {
772 op->print_on_error(st);
773 st->cr();
774 st->cr();
775 }
776 }
777
778 STEP("printing process")
779
780 if (_verbose) {
781 st->cr();
782 st->print_cr("--------------- P R O C E S S ---------------");
783 st->cr();
784 }
785
786 STEP("printing all threads")
787
788 // all threads
789 if (_verbose && _thread) {
790 Threads::print_on_error(st, _thread, buf, sizeof(buf));
791 st->cr();
792 }
793
794 STEP("printing VM state")
795
796 if (_verbose) {
797 // Safepoint state
798 st->print("VM state:");
799
800 if (SafepointSynchronize::is_synchronizing()) st->print("synchronizing");
801 else if (SafepointSynchronize::is_at_safepoint()) st->print("at safepoint");
802 else st->print("not at safepoint");
803
804 // Also see if error occurred during initialization or shutdown
805 if (!Universe::is_fully_initialized()) {
806 st->print(" (not fully initialized)");
807 } else if (VM_Exit::vm_exited()) {
808 st->print(" (shutting down)");
809 } else {
810 st->print(" (normal execution)");
811 }
812 st->cr();
813 st->cr();
814 }
815
816 STEP("printing owned locks on error")
817
818 // mutexes/monitors that currently have an owner
819 if (_verbose) {
820 print_owned_locks_on_error(st);
821 st->cr();
822 }
823
824 STEP("printing number of OutOfMemoryError and StackOverflow exceptions")
825
826 if (_verbose && Exceptions::has_exception_counts()) {
827 st->print_cr("OutOfMemory and StackOverflow Exception counts:");
828 Exceptions::print_exception_counts_on_error(st);
829 st->cr();
830 }
831
832 STEP("printing compressed oops mode")
833
834 if (_verbose && UseCompressedOops) {
835 Universe::print_compressed_oops_mode(st);
836 if (UseCompressedClassPointers) {
837 Metaspace::print_compressed_class_space(st);
838 }
839 st->cr();
840 }
841
842 STEP("printing heap information")
843
844 if (_verbose && Universe::is_fully_initialized()) {
845 Universe::heap()->print_on_error(st);
846 st->cr();
847 st->print_cr("Polling page: " INTPTR_FORMAT, p2i(os::get_polling_page()));
848 st->cr();
849 }
850
851 STEP("printing code cache information")
852
853 if (_verbose && Universe::is_fully_initialized()) {
854 // print code cache information before vm abort
855 CodeCache::print_summary(st);
856 st->cr();
857 }
858
859 STEP("printing ring buffers")
860
861 if (_verbose) {
862 Events::print_all(st);
863 st->cr();
864 }
865
866 STEP("printing dynamic libraries")
867
868 if (_verbose) {
869 // dynamic libraries, or memory map
870 os::print_dll_info(st);
871 st->cr();
872 }
873
874 STEP("printing VM options")
875
876 if (_verbose) {
877 // VM options
878 Arguments::print_on(st);
879 st->cr();
880 }
881
882 STEP("printing warning if internal testing API used")
883
884 if (WhiteBox::used()) {
885 st->print_cr("Unsupported internal testing APIs have been used.");
886 st->cr();
887 }
888
889 STEP("printing log configuration")
890 if (_verbose){
891 st->print_cr("Logging:");
892 LogConfiguration::describe_current_configuration(st);
893 st->cr();
894 }
895
896 STEP("printing all environment variables")
897
898 if (_verbose) {
899 os::print_environment_variables(st, env_list);
900 st->cr();
901 }
902
903 STEP("printing signal handlers")
904
905 if (_verbose) {
906 os::print_signal_handlers(st, buf, sizeof(buf));
907 st->cr();
908 }
909
910 STEP("Native Memory Tracking")
911 if (_verbose) {
912 MemTracker::error_report(st);
913 }
914
915 STEP("printing system")
916
917 if (_verbose) {
918 st->cr();
919 st->print_cr("--------------- S Y S T E M ---------------");
920 st->cr();
921 }
922
923 STEP("printing OS information")
924
925 if (_verbose) {
926 os::print_os_info(st);
927 st->cr();
928 }
929
930 STEP("printing CPU info")
931 if (_verbose) {
932 os::print_cpu_info(st, buf, sizeof(buf));
933 st->cr();
934 }
935
936 STEP("printing memory info")
937
938 if (_verbose) {
939 os::print_memory_info(st);
940 st->cr();
941 }
942
943 STEP("printing internal vm info")
944
945 if (_verbose) {
946 st->print_cr("vm_info: %s", Abstract_VM_Version::internal_vm_info_string());
947 st->cr();
948 }
949
950 // print a defined marker to show that error handling finished correctly.
951 STEP("printing end marker")
952
953 if (_verbose) {
954 st->print_cr("END.");
955 }
956
957 END
958
959 # undef BEGIN
960 # undef STEP
961 # undef END
962 }
963
964 // Report for the vm_info_cmd. This prints out the information above omitting
965 // crash and thread specific information. If output is added above, it should be added
966 // here also, if it is safe to call during a running process.
967 void VMError::print_vm_info(outputStream* st) {
968
969 char buf[O_BUFLEN];
970 report_vm_version(st, buf, sizeof(buf));
971
972 // STEP("printing summary")
973
974 st->cr();
975 st->print_cr("--------------- S U M M A R Y ------------");
976 st->cr();
977
978 // STEP("printing VM option summary")
979
980 // VM options
981 Arguments::print_summary_on(st);
982 st->cr();
983
984 // STEP("printing summary machine and OS info")
985
986 os::print_summary_info(st, buf, sizeof(buf));
987
988 // STEP("printing date and time")
989
990 os::print_date_and_time(st, buf, sizeof(buf));
991
992 // Skip: STEP("printing thread")
993
994 // STEP("printing process")
995
996 st->cr();
997 st->print_cr("--------------- P R O C E S S ---------------");
998 st->cr();
999
1000 // STEP("printing number of OutOfMemoryError and StackOverflow exceptions")
1001
1002 if (Exceptions::has_exception_counts()) {
1003 st->print_cr("OutOfMemory and StackOverflow Exception counts:");
1004 Exceptions::print_exception_counts_on_error(st);
1005 st->cr();
1006 }
1007
1008 // STEP("printing compressed oops mode")
1009
1010 if (UseCompressedOops) {
1011 Universe::print_compressed_oops_mode(st);
1012 if (UseCompressedClassPointers) {
1013 Metaspace::print_compressed_class_space(st);
1014 }
1015 st->cr();
1016 }
1017
1018 // STEP("printing heap information")
1019
1020 if (Universe::is_fully_initialized()) {
1021 MutexLocker hl(Heap_lock);
1022 Universe::heap()->print_on_error(st);
1023 st->cr();
1024 st->print_cr("Polling page: " INTPTR_FORMAT, p2i(os::get_polling_page()));
1025 st->cr();
1026 }
1027
1028 // STEP("printing code cache information")
1029
1030 if (Universe::is_fully_initialized()) {
1031 // print code cache information before vm abort
1032 CodeCache::print_summary(st);
1033 st->cr();
1034 }
1035
1036 // STEP("printing ring buffers")
1037
1038 Events::print_all(st);
1039 st->cr();
1040
1041 // STEP("printing dynamic libraries")
1042
1043 // dynamic libraries, or memory map
1044 os::print_dll_info(st);
1045 st->cr();
1046
1047 // STEP("printing VM options")
1048
1049 // VM options
1050 Arguments::print_on(st);
1051 st->cr();
1052
1053 // STEP("printing warning if internal testing API used")
1054
1055 if (WhiteBox::used()) {
1056 st->print_cr("Unsupported internal testing APIs have been used.");
1057 st->cr();
1058 }
1059
1060 // STEP("printing log configuration")
1061 st->print_cr("Logging:");
1062 LogConfiguration::describe(st);
1063 st->cr();
1064
1065 // STEP("printing all environment variables")
1066
1067 os::print_environment_variables(st, env_list);
1068 st->cr();
1069
1070 // STEP("printing signal handlers")
1071
1072 os::print_signal_handlers(st, buf, sizeof(buf));
1073 st->cr();
1074
1075 // STEP("Native Memory Tracking")
1076
1077 MemTracker::error_report(st);
1078
1079 // STEP("printing system")
1080
1081 st->cr();
1082 st->print_cr("--------------- S Y S T E M ---------------");
1083 st->cr();
1084
1085 // STEP("printing OS information")
1086
1087 os::print_os_info(st);
1088 st->cr();
1089
1090 // STEP("printing CPU info")
1091
1092 os::print_cpu_info(st, buf, sizeof(buf));
1093 st->cr();
1094
1095 // STEP("printing memory info")
1096
1097 os::print_memory_info(st);
1098 st->cr();
1099
1100 // STEP("printing internal vm info")
1101
1102 st->print_cr("vm_info: %s", Abstract_VM_Version::internal_vm_info_string());
1103 st->cr();
1104
1105 // print a defined marker to show that error handling finished correctly.
1106 // STEP("printing end marker")
1107
1108 st->print_cr("END.");
1109 }
1110
1111 volatile intptr_t VMError::first_error_tid = -1;
1112
1113 // An error could happen before tty is initialized or after it has been
1114 // destroyed.
1115 // Please note: to prevent large stack allocations, the log- and
1116 // output-stream use a global scratch buffer for format printing.
1117 // (see VmError::report_and_die(). Access to those streams is synchronized
1118 // in VmError::report_and_die() - there is only one reporting thread at
1119 // any given time.
1120 fdStream VMError::out(defaultStream::output_fd());
1121 fdStream VMError::log; // error log used by VMError::report_and_die()
1122
1123 /** Expand a pattern into a buffer starting at pos and open a file using constructed path */
1124 static int expand_and_open(const char* pattern, char* buf, size_t buflen, size_t pos) {
1125 int fd = -1;
1126 if (Arguments::copy_expand_pid(pattern, strlen(pattern), &buf[pos], buflen - pos)) {
1127 // the O_EXCL flag will cause the open to fail if the file exists
1128 fd = open(buf, O_RDWR | O_CREAT | O_EXCL, 0666);
1129 }
1130 return fd;
1131 }
1132
1133 /**
1134 * Construct file name for a log file and return it's file descriptor.
1135 * Name and location depends on pattern, default_pattern params and access
1136 * permissions.
1137 */
1138 static int prepare_log_file(const char* pattern, const char* default_pattern, char* buf, size_t buflen) {
1139 int fd = -1;
1140
1141 // If possible, use specified pattern to construct log file name
1142 if (pattern != NULL) {
1143 fd = expand_and_open(pattern, buf, buflen, 0);
1144 }
1145
1146 // Either user didn't specify, or the user's location failed,
1147 // so use the default name in the current directory
1148 if (fd == -1) {
1149 const char* cwd = os::get_current_directory(buf, buflen);
1150 if (cwd != NULL) {
1151 size_t pos = strlen(cwd);
1152 int fsep_len = jio_snprintf(&buf[pos], buflen-pos, "%s", os::file_separator());
1153 pos += fsep_len;
1154 if (fsep_len > 0) {
1155 fd = expand_and_open(default_pattern, buf, buflen, pos);
1156 }
1157 }
1158 }
1159
1160 // try temp directory if it exists.
1161 if (fd == -1) {
1162 const char* tmpdir = os::get_temp_directory();
1163 if (tmpdir != NULL && strlen(tmpdir) > 0) {
1164 int pos = jio_snprintf(buf, buflen, "%s%s", tmpdir, os::file_separator());
1165 if (pos > 0) {
1166 fd = expand_and_open(default_pattern, buf, buflen, pos);
1167 }
1168 }
1169 }
1170
1171 return fd;
1172 }
1173
1174 int VMError::_id;
1175 const char* VMError::_message;
1176 char VMError::_detail_msg[1024];
1177 Thread* VMError::_thread;
1178 address VMError::_pc;
1179 void* VMError::_siginfo;
1180 void* VMError::_context;
1181 const char* VMError::_filename;
1182 int VMError::_lineno;
1183 size_t VMError::_size;
1184
1185 void VMError::report_and_die(Thread* thread, unsigned int sig, address pc, void* siginfo,
1186 void* context, const char* detail_fmt, ...)
1187 {
1188 va_list detail_args;
1189 va_start(detail_args, detail_fmt);
1190 report_and_die(sig, NULL, detail_fmt, detail_args, thread, pc, siginfo, context, NULL, 0, 0);
1191 va_end(detail_args);
1192 }
1193
1194 void VMError::report_and_die(Thread* thread, unsigned int sig, address pc, void* siginfo, void* context)
1195 {
1196 report_and_die(thread, sig, pc, siginfo, context, "%s", "");
1197 }
1198
1199 void VMError::report_and_die(const char* message, const char* detail_fmt, ...)
1200 {
1201 va_list detail_args;
1202 va_start(detail_args, detail_fmt);
1203 report_and_die(INTERNAL_ERROR, message, detail_fmt, detail_args, NULL, NULL, NULL, NULL, NULL, 0, 0);
1204 va_end(detail_args);
1205 }
1206
1207 void VMError::report_and_die(const char* message)
1208 {
1209 report_and_die(message, "%s", "");
1210 }
1211
1212 void VMError::report_and_die(Thread* thread, const char* filename, int lineno, const char* message,
1213 const char* detail_fmt, va_list detail_args)
1214 {
1215 report_and_die(INTERNAL_ERROR, message, detail_fmt, detail_args, thread, NULL, NULL, NULL, filename, lineno, 0);
1216 }
1217
1218 void VMError::report_and_die(Thread* thread, const char* filename, int lineno, size_t size,
1219 VMErrorType vm_err_type, const char* detail_fmt, va_list detail_args) {
1220 report_and_die(vm_err_type, NULL, detail_fmt, detail_args, thread, NULL, NULL, NULL, filename, lineno, size);
1221 }
1222
1223 void VMError::report_and_die(int id, const char* message, const char* detail_fmt, va_list detail_args,
1224 Thread* thread, address pc, void* siginfo, void* context, const char* filename,
1225 int lineno, size_t size)
1226 {
1227 // Don't allocate large buffer on stack
1228 static char buffer[O_BUFLEN];
1229 out.set_scratch_buffer(buffer, sizeof(buffer));
1230 log.set_scratch_buffer(buffer, sizeof(buffer));
1231
1232 // How many errors occurred in error handler when reporting first_error.
1233 static int recursive_error_count;
1234
1235 // We will first print a brief message to standard out (verbose = false),
1236 // then save detailed information in log file (verbose = true).
1237 static bool out_done = false; // done printing to standard out
1238 static bool log_done = false; // done saving error log
1239 static bool transmit_report_done = false; // done error reporting
1240
1241 if (SuppressFatalErrorMessage) {
1242 os::abort(CreateCoredumpOnCrash);
1243 }
1244 intptr_t mytid = os::current_thread_id();
1245 if (first_error_tid == -1 &&
1246 Atomic::cmpxchg_ptr(mytid, &first_error_tid, -1) == -1) {
1247
1248 // Initialize time stamps to use the same base.
1249 out.time_stamp().update_to(1);
1250 log.time_stamp().update_to(1);
1251
1252 _id = id;
1253 _message = message;
1254 _thread = thread;
1255 _pc = pc;
1256 _siginfo = siginfo;
1257 _context = context;
1258 _filename = filename;
1259 _lineno = lineno;
1260 _size = size;
1261 jio_vsnprintf(_detail_msg, sizeof(_detail_msg), detail_fmt, detail_args);
1262
1263 // first time
1264 set_error_reported();
1265
1266 reporting_started();
1267 record_reporting_start_time();
1268
1269 if (ShowMessageBoxOnError || PauseAtExit) {
1270 show_message_box(buffer, sizeof(buffer));
1271
1272 // User has asked JVM to abort. Reset ShowMessageBoxOnError so the
1273 // WatcherThread can kill JVM if the error handler hangs.
1274 ShowMessageBoxOnError = false;
1275 }
1276
1277 os::check_dump_limit(buffer, sizeof(buffer));
1278
1279 // reset signal handlers or exception filter; make sure recursive crashes
1280 // are handled properly.
1281 reset_signal_handlers();
1282
1283 TRACE_VM_ERROR();
1284
1285 } else {
1286 // If UseOsErrorReporting we call this for each level of the call stack
1287 // while searching for the exception handler. Only the first level needs
1288 // to be reported.
1289 if (UseOSErrorReporting && log_done) return;
1290
1291 // This is not the first error, see if it happened in a different thread
1292 // or in the same thread during error reporting.
1293 if (first_error_tid != mytid) {
1294 char msgbuf[64];
1295 jio_snprintf(msgbuf, sizeof(msgbuf),
1296 "[thread " INTX_FORMAT " also had an error]",
1297 mytid);
1298 out.print_raw_cr(msgbuf);
1299
1300 // error reporting is not MT-safe, block current thread
1301 os::infinite_sleep();
1302
1303 } else {
1304 if (recursive_error_count++ > 30) {
1305 out.print_raw_cr("[Too many errors, abort]");
1306 os::die();
1307 }
1308
1309 outputStream* const st = log.is_open() ? &log : &out;
1310 st->cr();
1311
1312 // Timeout handling.
1313 if (_step_did_timeout) {
1314 // The current step had a timeout. Lets continue reporting with the next step.
1315 st->print_raw("[timeout occurred during error reporting in step \"");
1316 st->print_raw(_current_step_info);
1317 st->print_cr("\"] after " INT64_FORMAT " s.",
1318 (int64_t)
1319 ((get_current_timestamp() - _step_start_time) / TIMESTAMP_TO_SECONDS_FACTOR));
1320 } else if (_reporting_did_timeout) {
1321 // We hit ErrorLogTimeout. Reporting will stop altogether. Let's wrap things
1322 // up, the process is about to be stopped by the WatcherThread.
1323 st->print_cr("------ Timeout during error reporting after " INT64_FORMAT " s. ------",
1324 (int64_t)
1325 ((get_current_timestamp() - _reporting_start_time) / TIMESTAMP_TO_SECONDS_FACTOR));
1326 st->flush();
1327 // Watcherthread is about to call os::die. Lets just wait.
1328 os::infinite_sleep();
1329 } else {
1330 // Crash or assert during error reporting. Lets continue reporting with the next step.
1331 jio_snprintf(buffer, sizeof(buffer),
1332 "[error occurred during error reporting (%s), id 0x%x]",
1333 _current_step_info, _id);
1334 st->print_raw_cr(buffer);
1335 st->cr();
1336 }
1337 }
1338 }
1339
1340 // print to screen
1341 if (!out_done) {
1342 report(&out, false);
1343
1344 out_done = true;
1345
1346 _current_step = 0;
1347 _current_step_info = "";
1348 }
1349
1350 // print to error log file
1351 if (!log_done) {
1352 // see if log file is already open
1353 if (!log.is_open()) {
1354 // open log file
1355 int fd = prepare_log_file(ErrorFile, "hs_err_pid%p.log", buffer, sizeof(buffer));
1356 if (fd != -1) {
1357 out.print_raw("# An error report file with more information is saved as:\n# ");
1358 out.print_raw_cr(buffer);
1359
1360 log.set_fd(fd);
1361 } else {
1362 out.print_raw_cr("# Can not save log file, dump to screen..");
1363 log.set_fd(defaultStream::output_fd());
1364 /* Error reporting currently needs dumpfile.
1365 * Maybe implement direct streaming in the future.*/
1366 transmit_report_done = true;
1367 }
1368 }
1369
1370 report(&log, true);
1371 log_done = true;
1372 _current_step = 0;
1373 _current_step_info = "";
1374
1375 // Run error reporting to determine whether or not to report the crash.
1376 if (!transmit_report_done && should_report_bug(_id)) {
1377 transmit_report_done = true;
1378 const int fd2 = ::dup(log.fd());
1379 if (fd2 != -1) {
1380 FILE* const hs_err = ::fdopen(fd2, "r");
1381 if (NULL != hs_err) {
1382 ErrorReporter er;
1383 er.call(hs_err, buffer, O_BUFLEN);
1384 ::fclose(hs_err);
1385 }
1386 }
1387 }
1388
1389 if (log.fd() != defaultStream::output_fd()) {
1390 close(log.fd());
1391 }
1392
1393 log.set_fd(-1);
1394 }
1395
1396 static bool skip_replay = ReplayCompiles; // Do not overwrite file during replay
1397 if (DumpReplayDataOnError && _thread && _thread->is_Compiler_thread() && !skip_replay) {
1398 skip_replay = true;
1399 ciEnv* env = ciEnv::current();
1400 if (env != NULL) {
1401 int fd = prepare_log_file(ReplayDataFile, "replay_pid%p.log", buffer, sizeof(buffer));
1402 if (fd != -1) {
1403 FILE* replay_data_file = os::open(fd, "w");
1404 if (replay_data_file != NULL) {
1405 fileStream replay_data_stream(replay_data_file, /*need_close=*/true);
1406 env->dump_replay_data_unsafe(&replay_data_stream);
1407 out.print_raw("#\n# Compiler replay data is saved as:\n# ");
1408 out.print_raw_cr(buffer);
1409 } else {
1410 int e = errno;
1411 out.print_raw("#\n# Can't open file to dump replay data. Error: ");
1412 out.print_raw_cr(os::strerror(e));
1413 }
1414 }
1415 }
1416 }
1417
1418 static bool skip_bug_url = !should_report_bug(_id);
1419 if (!skip_bug_url) {
1420 skip_bug_url = true;
1421
1422 out.print_raw_cr("#");
1423 print_bug_submit_message(&out, _thread);
1424 }
1425
1426 static bool skip_OnError = false;
1427 if (!skip_OnError && OnError && OnError[0]) {
1428 skip_OnError = true;
1429
1430 // Flush output and finish logs before running OnError commands.
1431 ostream_abort();
1432
1433 out.print_raw_cr("#");
1434 out.print_raw ("# -XX:OnError=\"");
1435 out.print_raw (OnError);
1436 out.print_raw_cr("\"");
1437
1438 char* cmd;
1439 const char* ptr = OnError;
1440 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){
1441 out.print_raw ("# Executing ");
1442 #if defined(LINUX) || defined(_ALLBSD_SOURCE)
1443 out.print_raw ("/bin/sh -c ");
1444 #elif defined(SOLARIS)
1445 out.print_raw ("/usr/bin/sh -c ");
1446 #elif defined(WINDOWS)
1447 out.print_raw ("cmd /C ");
1448 #endif
1449 out.print_raw ("\"");
1450 out.print_raw (cmd);
1451 out.print_raw_cr("\" ...");
1452
1453 if (os::fork_and_exec(cmd) < 0) {
1454 out.print_cr("os::fork_and_exec failed: %s (%s=%d)",
1455 os::strerror(errno), os::errno_name(errno), errno);
1456 }
1457 }
1458
1459 // done with OnError
1460 OnError = NULL;
1461 }
1462
1463 if (!UseOSErrorReporting) {
1464 // os::abort() will call abort hooks, try it first.
1465 static bool skip_os_abort = false;
1466 if (!skip_os_abort) {
1467 skip_os_abort = true;
1468 bool dump_core = should_report_bug(_id);
1469 os::abort(dump_core && CreateCoredumpOnCrash, _siginfo, _context);
1470 }
1471
1472 // if os::abort() doesn't abort, try os::die();
1473 os::die();
1474 }
1475 }
1476
1477 /*
1478 * OnOutOfMemoryError scripts/commands executed while VM is a safepoint - this
1479 * ensures utilities such as jmap can observe the process is a consistent state.
1480 */
1481 class VM_ReportJavaOutOfMemory : public VM_Operation {
1482 private:
1483 const char* _message;
1484 public:
1485 VM_ReportJavaOutOfMemory(const char* message) { _message = message; }
1486 VMOp_Type type() const { return VMOp_ReportJavaOutOfMemory; }
1487 void doit();
1488 };
1489
1490 void VM_ReportJavaOutOfMemory::doit() {
1491 // Don't allocate large buffer on stack
1492 static char buffer[O_BUFLEN];
1493
1494 tty->print_cr("#");
1495 tty->print_cr("# java.lang.OutOfMemoryError: %s", _message);
1496 tty->print_cr("# -XX:OnOutOfMemoryError=\"%s\"", OnOutOfMemoryError);
1497
1498 // make heap parsability
1499 Universe::heap()->ensure_parsability(false); // no need to retire TLABs
1500
1501 char* cmd;
1502 const char* ptr = OnOutOfMemoryError;
1503 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){
1504 tty->print("# Executing ");
1505 #if defined(LINUX)
1506 tty->print ("/bin/sh -c ");
1507 #elif defined(SOLARIS)
1508 tty->print ("/usr/bin/sh -c ");
1509 #endif
1510 tty->print_cr("\"%s\"...", cmd);
1511
1512 if (os::fork_and_exec(cmd) < 0) {
1513 tty->print_cr("os::fork_and_exec failed: %s (%s=%d)",
1514 os::strerror(errno), os::errno_name(errno), errno);
1515 }
1516 }
1517 }
1518
1519 void VMError::report_java_out_of_memory(const char* message) {
1520 if (OnOutOfMemoryError && OnOutOfMemoryError[0]) {
1521 MutexLocker ml(Heap_lock);
1522 VM_ReportJavaOutOfMemory op(message);
1523 VMThread::execute(&op);
1524 }
1525 }
1526
1527 void VMError::show_message_box(char *buf, int buflen) {
1528 bool yes;
1529 do {
1530 error_string(buf, buflen);
1531 yes = os::start_debugging(buf,buflen);
1532 } while (yes);
1533 }
1534
1535 // Timeout handling: check if a timeout happened (either a single step did
1536 // timeout or the whole of error reporting hit ErrorLogTimeout). Interrupt
1537 // the reporting thread if that is the case.
1538 bool VMError::check_timeout() {
1539
1540 if (ErrorLogTimeout == 0) {
1541 return false;
1542 }
1543
1544 // Do not check for timeouts if we still have a message box to show to the
1545 // user or if there are OnError handlers to be run.
1546 if (ShowMessageBoxOnError
1547 || (OnError != NULL && OnError[0] != '\0')
1548 || Arguments::abort_hook() != NULL) {
1549 return false;
1550 }
1551
1552 const jlong reporting_start_time_l = get_reporting_start_time();
1553 const jlong now = get_current_timestamp();
1554 // Timestamp is stored in nanos.
1555 if (reporting_start_time_l > 0) {
1556 const jlong end = reporting_start_time_l + (jlong)ErrorLogTimeout * TIMESTAMP_TO_SECONDS_FACTOR;
1557 if (end <= now) {
1558 _reporting_did_timeout = true;
1559 interrupt_reporting_thread();
1560 return true; // global timeout
1561 }
1562 }
1563
1564 const jlong step_start_time_l = get_step_start_time();
1565 if (step_start_time_l > 0) {
1566 // A step times out after a quarter of the total timeout. Steps are mostly fast unless they
1567 // hang for some reason, so this simple rule allows for three hanging step and still
1568 // hopefully leaves time enough for the rest of the steps to finish.
1569 const jlong end = step_start_time_l + (jlong)ErrorLogTimeout * TIMESTAMP_TO_SECONDS_FACTOR / 4;
1570 if (end <= now) {
1571 _step_did_timeout = true;
1572 interrupt_reporting_thread();
1573 return false; // (Not a global timeout)
1574 }
1575 }
1576
1577 return false;
1578
1579 }
1580