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comparison src/share/vm/utilities/vmError.cpp @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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1 /*
2 * Copyright 2003-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
24
25 # include "incls/_precompiled.incl"
26 # include "incls/_vmError.cpp.incl"
27
28 // List of environment variables that should be reported in error log file.
29 const char *env_list[] = {
30 // All platforms
31 "JAVA_HOME", "JRE_HOME", "JAVA_TOOL_OPTIONS", "_JAVA_OPTIONS", "CLASSPATH",
32 "JAVA_COMPILER", "PATH", "USERNAME",
33
34 // Env variables that are defined on Solaris/Linux
35 "LD_LIBRARY_PATH", "LD_PRELOAD", "SHELL", "DISPLAY",
36 "HOSTTYPE", "OSTYPE", "ARCH", "MACHTYPE",
37
38 // defined on Linux
39 "LD_ASSUME_KERNEL", "_JAVA_SR_SIGNUM",
40
41 // defined on Windows
42 "OS", "PROCESSOR_IDENTIFIER", "_ALT_JAVA_HOME_DIR",
43
44 (const char *)0
45 };
46
47 // Fatal error handler for internal errors and crashes.
48 //
49 // The default behavior of fatal error handler is to print a brief message
50 // to standard out (defaultStream::output_fd()), then save detailed information
51 // into an error report file (hs_err_pid<pid>.log) and abort VM. If multiple
52 // threads are having troubles at the same time, only one error is reported.
53 // The thread that is reporting error will abort VM when it is done, all other
54 // threads are blocked forever inside report_and_die().
55
56 // Constructor for crashes
57 VMError::VMError(Thread* thread, int sig, address pc, void* siginfo, void* context) {
58 _thread = thread;
59 _id = sig;
60 _pc = pc;
61 _siginfo = siginfo;
62 _context = context;
63
64 _verbose = false;
65 _current_step = 0;
66 _current_step_info = NULL;
67
68 _message = "";
69 _filename = NULL;
70 _lineno = 0;
71
72 _size = 0;
73 }
74
75 // Constructor for internal errors
76 VMError::VMError(Thread* thread, const char* message, const char* filename, int lineno) {
77 _thread = thread;
78 _id = internal_error; // set it to a value that's not an OS exception/signal
79 _filename = filename;
80 _lineno = lineno;
81 _message = message;
82
83 _verbose = false;
84 _current_step = 0;
85 _current_step_info = NULL;
86
87 _pc = NULL;
88 _siginfo = NULL;
89 _context = NULL;
90
91 _size = 0;
92 }
93
94 // Constructor for OOM errors
95 VMError::VMError(Thread* thread, size_t size, const char* message, const char* filename, int lineno) {
96 _thread = thread;
97 _id = oom_error; // set it to a value that's not an OS exception/signal
98 _filename = filename;
99 _lineno = lineno;
100 _message = message;
101
102 _verbose = false;
103 _current_step = 0;
104 _current_step_info = NULL;
105
106 _pc = NULL;
107 _siginfo = NULL;
108 _context = NULL;
109
110 _size = size;
111 }
112
113
114 // Constructor for non-fatal errors
115 VMError::VMError(const char* message) {
116 _thread = NULL;
117 _id = internal_error; // set it to a value that's not an OS exception/signal
118 _filename = NULL;
119 _lineno = 0;
120 _message = message;
121
122 _verbose = false;
123 _current_step = 0;
124 _current_step_info = NULL;
125
126 _pc = NULL;
127 _siginfo = NULL;
128 _context = NULL;
129
130 _size = 0;
131 }
132
133 // -XX:OnError=<string>, where <string> can be a list of commands, separated
134 // by ';'. "%p" is replaced by current process id (pid); "%%" is replaced by
135 // a single "%". Some examples:
136 //
137 // -XX:OnError="pmap %p" // show memory map
138 // -XX:OnError="gcore %p; dbx - %p" // dump core and launch debugger
139 // -XX:OnError="cat hs_err_pid%p.log | mail my_email@sun.com"
140 // -XX:OnError="kill -9 %p" // ?#!@#
141
142 // A simple parser for -XX:OnError, usage:
143 // ptr = OnError;
144 // while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr) != NULL)
145 // ... ...
146 static char* next_OnError_command(char* buf, int buflen, const char** ptr) {
147 if (ptr == NULL || *ptr == NULL) return NULL;
148
149 const char* cmd = *ptr;
150
151 // skip leading blanks or ';'
152 while (*cmd == ' ' || *cmd == ';') cmd++;
153
154 if (*cmd == '\0') return NULL;
155
156 const char * cmdend = cmd;
157 while (*cmdend != '\0' && *cmdend != ';') cmdend++;
158
159 Arguments::copy_expand_pid(cmd, cmdend - cmd, buf, buflen);
160
161 *ptr = (*cmdend == '\0' ? cmdend : cmdend + 1);
162 return buf;
163 }
164
165
166 static void print_bug_submit_message(outputStream *out, Thread *thread) {
167 if (out == NULL) return;
168 out->print_raw_cr("# If you would like to submit a bug report, please visit:");
169 out->print_raw ("# ");
170 out->print_raw_cr(Arguments::java_vendor_url_bug());
171 // If the crash is in native code, encourage user to submit a bug to the
172 // provider of that code.
173 if (thread && thread->is_Java_thread()) {
174 JavaThread* jt = (JavaThread*)thread;
175 if (jt->thread_state() == _thread_in_native) {
176 out->print_cr("# The crash happened outside the Java Virtual Machine in native code.\n# See problematic frame for where to report the bug.");
177 }
178 }
179 out->print_raw_cr("#");
180 }
181
182
183 // Return a string to describe the error
184 char* VMError::error_string(char* buf, int buflen) {
185 char signame_buf[64];
186 const char *signame = os::exception_name(_id, signame_buf, sizeof(signame_buf));
187
188 if (signame) {
189 jio_snprintf(buf, buflen,
190 "%s (0x%x) at pc=" PTR_FORMAT ", pid=%d, tid=" UINTX_FORMAT,
191 signame, _id, _pc,
192 os::current_process_id(), os::current_thread_id());
193 } else {
194 if (_filename != NULL && _lineno > 0) {
195 // skip directory names
196 char separator = os::file_separator()[0];
197 const char *p = strrchr(_filename, separator);
198
199 jio_snprintf(buf, buflen,
200 "Internal Error at %s:%d, pid=%d, tid=" UINTX_FORMAT " \nError: %s",
201 p ? p + 1 : _filename, _lineno,
202 os::current_process_id(), os::current_thread_id(),
203 _message ? _message : "");
204 } else {
205 jio_snprintf(buf, buflen,
206 "Internal Error (0x%x), pid=%d, tid=" UINTX_FORMAT,
207 _id, os::current_process_id(), os::current_thread_id());
208 }
209 }
210
211 return buf;
212 }
213
214
215 // This is the main function to report a fatal error. Only one thread can
216 // call this function, so we don't need to worry about MT-safety. But it's
217 // possible that the error handler itself may crash or die on an internal
218 // error, for example, when the stack/heap is badly damaged. We must be
219 // able to handle recursive errors that happen inside error handler.
220 //
221 // Error reporting is done in several steps. If a crash or internal error
222 // occurred when reporting an error, the nested signal/exception handler
223 // can skip steps that are already (or partially) done. Error reporting will
224 // continue from the next step. This allows us to retrieve and print
225 // information that may be unsafe to get after a fatal error. If it happens,
226 // you may find nested report_and_die() frames when you look at the stack
227 // in a debugger.
228 //
229 // In general, a hang in error handler is much worse than a crash or internal
230 // error, as it's harder to recover from a hang. Deadlock can happen if we
231 // try to grab a lock that is already owned by current thread, or if the
232 // owner is blocked forever (e.g. in os::infinite_sleep()). If possible, the
233 // error handler and all the functions it called should avoid grabbing any
234 // lock. An important thing to notice is that memory allocation needs a lock.
235 //
236 // We should avoid using large stack allocated buffers. Many errors happen
237 // when stack space is already low. Making things even worse is that there
238 // could be nested report_and_die() calls on stack (see above). Only one
239 // thread can report error, so large buffers are statically allocated in data
240 // segment.
241
242 void VMError::report(outputStream* st) {
243 # define BEGIN if (_current_step == 0) { _current_step = 1;
244 # define STEP(n, s) } if (_current_step < n) { _current_step = n; _current_step_info = s;
245 # define END }
246
247 // don't allocate large buffer on stack
248 static char buf[O_BUFLEN];
249
250 BEGIN
251
252 STEP(10, "(printing unexpected error message)")
253
254 st->print_cr("#");
255 st->print_cr("# An unexpected error has been detected by Java Runtime Environment:");
256
257 STEP(15, "(printing type of error)")
258
259 switch(_id) {
260 case oom_error:
261 st->print_cr("#");
262 st->print("# java.lang.OutOfMemoryError: ");
263 if (_size) {
264 st->print("requested ");
265 sprintf(buf,"%d",_size);
266 st->print(buf);
267 st->print(" bytes");
268 if (_message != NULL) {
269 st->print(" for ");
270 st->print(_message);
271 }
272 st->print_cr(". Out of swap space?");
273 } else {
274 if (_message != NULL)
275 st->print_cr(_message);
276 }
277 break;
278 case internal_error:
279 default:
280 break;
281 }
282
283 STEP(20, "(printing exception/signal name)")
284
285 st->print_cr("#");
286 st->print("# ");
287 // Is it an OS exception/signal?
288 if (os::exception_name(_id, buf, sizeof(buf))) {
289 st->print("%s", buf);
290 st->print(" (0x%x)", _id); // signal number
291 st->print(" at pc=" PTR_FORMAT, _pc);
292 } else {
293 st->print("Internal Error");
294 if (_filename != NULL && _lineno > 0) {
295 #ifdef PRODUCT
296 // In product mode chop off pathname?
297 char separator = os::file_separator()[0];
298 const char *p = strrchr(_filename, separator);
299 const char *file = p ? p+1 : _filename;
300 #else
301 const char *file = _filename;
302 #endif
303 size_t len = strlen(file);
304 size_t buflen = sizeof(buf);
305
306 strncpy(buf, file, buflen);
307 if (len + 10 < buflen) {
308 sprintf(buf + len, ":" SIZE_FORMAT, _lineno);
309 }
310 st->print(" (%s)", buf);
311 } else {
312 st->print(" (0x%x)", _id);
313 }
314 }
315
316 STEP(30, "(printing current thread and pid)")
317
318 // process id, thread id
319 st->print(", pid=%d", os::current_process_id());
320 st->print(", tid=" UINTX_FORMAT, os::current_thread_id());
321 st->cr();
322
323 STEP(40, "(printing error message)")
324
325 // error message
326 if (_message && _message[0] != '\0') {
327 st->print_cr("# Error: %s", _message);
328 }
329
330 STEP(50, "(printing Java version string)")
331
332 // VM version
333 st->print_cr("#");
334 st->print_cr("# Java VM: %s (%s %s %s)",
335 Abstract_VM_Version::vm_name(),
336 Abstract_VM_Version::vm_release(),
337 Abstract_VM_Version::vm_info_string(),
338 Abstract_VM_Version::vm_platform_string()
339 );
340
341 STEP(60, "(printing problematic frame)")
342
343 // Print current frame if we have a context (i.e. it's a crash)
344 if (_context) {
345 st->print_cr("# Problematic frame:");
346 st->print("# ");
347 frame fr = os::fetch_frame_from_context(_context);
348 fr.print_on_error(st, buf, sizeof(buf));
349 st->cr();
350 st->print_cr("#");
351 }
352
353 STEP(65, "(printing bug submit message)")
354
355 if (_verbose) print_bug_submit_message(st, _thread);
356
357 STEP(70, "(printing thread)" )
358
359 if (_verbose) {
360 st->cr();
361 st->print_cr("--------------- T H R E A D ---------------");
362 st->cr();
363 }
364
365 STEP(80, "(printing current thread)" )
366
367 // current thread
368 if (_verbose) {
369 if (_thread) {
370 st->print("Current thread (" PTR_FORMAT "): ", _thread);
371 _thread->print_on_error(st, buf, sizeof(buf));
372 st->cr();
373 } else {
374 st->print_cr("Current thread is native thread");
375 }
376 st->cr();
377 }
378
379 STEP(90, "(printing siginfo)" )
380
381 // signal no, signal code, address that caused the fault
382 if (_verbose && _siginfo) {
383 os::print_siginfo(st, _siginfo);
384 st->cr();
385 }
386
387 STEP(100, "(printing registers, top of stack, instructions near pc)")
388
389 // registers, top of stack, instructions near pc
390 if (_verbose && _context) {
391 os::print_context(st, _context);
392 st->cr();
393 }
394
395 STEP(110, "(printing stack bounds)" )
396
397 if (_verbose) {
398 st->print("Stack: ");
399
400 address stack_top;
401 size_t stack_size;
402
403 if (_thread) {
404 stack_top = _thread->stack_base();
405 stack_size = _thread->stack_size();
406 } else {
407 stack_top = os::current_stack_base();
408 stack_size = os::current_stack_size();
409 }
410
411 address stack_bottom = stack_top - stack_size;
412 st->print("[" PTR_FORMAT "," PTR_FORMAT "]", stack_bottom, stack_top);
413
414 frame fr = _context ? os::fetch_frame_from_context(_context)
415 : os::current_frame();
416
417 if (fr.sp()) {
418 st->print(", sp=" PTR_FORMAT, fr.sp());
419 st->print(", free space=%dk",
420 ((intptr_t)fr.sp() - (intptr_t)stack_bottom) >> 10);
421 }
422
423 st->cr();
424 }
425
426 STEP(120, "(printing native stack)" )
427
428 if (_verbose) {
429 frame fr = _context ? os::fetch_frame_from_context(_context)
430 : os::current_frame();
431
432 // see if it's a valid frame
433 if (fr.pc()) {
434 st->print_cr("Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)");
435
436 int count = 0;
437
438 while (count++ < StackPrintLimit) {
439 fr.print_on_error(st, buf, sizeof(buf));
440 st->cr();
441 if (os::is_first_C_frame(&fr)) break;
442 fr = os::get_sender_for_C_frame(&fr);
443 }
444
445 if (count > StackPrintLimit) {
446 st->print_cr("...<more frames>...");
447 }
448
449 st->cr();
450 }
451 }
452
453 STEP(130, "(printing Java stack)" )
454
455 if (_verbose && _thread && _thread->is_Java_thread()) {
456 JavaThread* jt = (JavaThread*)_thread;
457 if (jt->has_last_Java_frame()) {
458 st->print_cr("Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)");
459 for(StackFrameStream sfs(jt); !sfs.is_done(); sfs.next()) {
460 sfs.current()->print_on_error(st, buf, sizeof(buf));
461 st->cr();
462 }
463 }
464 }
465
466 STEP(140, "(printing VM operation)" )
467
468 if (_verbose && _thread && _thread->is_VM_thread()) {
469 VMThread* t = (VMThread*)_thread;
470 VM_Operation* op = t->vm_operation();
471 if (op) {
472 op->print_on_error(st);
473 st->cr();
474 st->cr();
475 }
476 }
477
478 STEP(150, "(printing current compile task)" )
479
480 if (_verbose && _thread && _thread->is_Compiler_thread()) {
481 CompilerThread* t = (CompilerThread*)_thread;
482 if (t->task()) {
483 st->cr();
484 st->print_cr("Current CompileTask:");
485 t->task()->print_line_on_error(st, buf, sizeof(buf));
486 st->cr();
487 }
488 }
489
490 STEP(160, "(printing process)" )
491
492 if (_verbose) {
493 st->cr();
494 st->print_cr("--------------- P R O C E S S ---------------");
495 st->cr();
496 }
497
498 STEP(170, "(printing all threads)" )
499
500 // all threads
501 if (_verbose && _thread) {
502 Threads::print_on_error(st, _thread, buf, sizeof(buf));
503 st->cr();
504 }
505
506 STEP(175, "(printing VM state)" )
507
508 if (_verbose) {
509 // Safepoint state
510 st->print("VM state:");
511
512 if (SafepointSynchronize::is_synchronizing()) st->print("synchronizing");
513 else if (SafepointSynchronize::is_at_safepoint()) st->print("at safepoint");
514 else st->print("not at safepoint");
515
516 // Also see if error occurred during initialization or shutdown
517 if (!Universe::is_fully_initialized()) {
518 st->print(" (not fully initialized)");
519 } else if (VM_Exit::vm_exited()) {
520 st->print(" (shutting down)");
521 } else {
522 st->print(" (normal execution)");
523 }
524 st->cr();
525 st->cr();
526 }
527
528 STEP(180, "(printing owned locks on error)" )
529
530 // mutexes/monitors that currently have an owner
531 if (_verbose) {
532 print_owned_locks_on_error(st);
533 st->cr();
534 }
535
536 STEP(190, "(printing heap information)" )
537
538 if (_verbose && Universe::is_fully_initialized()) {
539 // print heap information before vm abort
540 Universe::print_on(st);
541 st->cr();
542 }
543
544 STEP(200, "(printing dynamic libraries)" )
545
546 if (_verbose) {
547 // dynamic libraries, or memory map
548 os::print_dll_info(st);
549 st->cr();
550 }
551
552 STEP(210, "(printing VM options)" )
553
554 if (_verbose) {
555 // VM options
556 Arguments::print_on(st);
557 st->cr();
558 }
559
560 STEP(220, "(printing environment variables)" )
561
562 if (_verbose) {
563 os::print_environment_variables(st, env_list, buf, sizeof(buf));
564 st->cr();
565 }
566
567 STEP(225, "(printing signal handlers)" )
568
569 if (_verbose) {
570 os::print_signal_handlers(st, buf, sizeof(buf));
571 st->cr();
572 }
573
574 STEP(230, "" )
575
576 if (_verbose) {
577 st->cr();
578 st->print_cr("--------------- S Y S T E M ---------------");
579 st->cr();
580 }
581
582 STEP(240, "(printing OS information)" )
583
584 if (_verbose) {
585 os::print_os_info(st);
586 st->cr();
587 }
588
589 STEP(250, "(printing CPU info)" )
590 if (_verbose) {
591 os::print_cpu_info(st);
592 st->cr();
593 }
594
595 STEP(260, "(printing memory info)" )
596
597 if (_verbose) {
598 os::print_memory_info(st);
599 st->cr();
600 }
601
602 STEP(270, "(printing internal vm info)" )
603
604 if (_verbose) {
605 st->print_cr("vm_info: %s", Abstract_VM_Version::internal_vm_info_string());
606 st->cr();
607 }
608
609 STEP(280, "(printing date and time)" )
610
611 if (_verbose) {
612 os::print_date_and_time(st);
613 st->cr();
614 }
615
616 END
617
618 # undef BEGIN
619 # undef STEP
620 # undef END
621 }
622
623
624 void VMError::report_and_die() {
625 // Don't allocate large buffer on stack
626 static char buffer[O_BUFLEN];
627
628 // First error, and its thread id. We must be able to handle native thread,
629 // so use thread id instead of Thread* to identify thread.
630 static VMError* first_error;
631 static jlong first_error_tid;
632
633 // An error could happen before tty is initialized or after it has been
634 // destroyed. Here we use a very simple unbuffered fdStream for printing.
635 // Only out.print_raw() and out.print_raw_cr() should be used, as other
636 // printing methods need to allocate large buffer on stack. To format a
637 // string, use jio_snprintf() with a static buffer or use staticBufferStream.
638 static fdStream out(defaultStream::output_fd());
639
640 // How many errors occurred in error handler when reporting first_error.
641 static int recursive_error_count;
642
643 // We will first print a brief message to standard out (verbose = false),
644 // then save detailed information in log file (verbose = true).
645 static bool out_done = false; // done printing to standard out
646 static bool log_done = false; // done saving error log
647 static fdStream log; // error log
648
649 if (SuppressFatalErrorMessage) {
650 os::abort();
651 }
652 jlong mytid = os::current_thread_id();
653 if (first_error == NULL &&
654 Atomic::cmpxchg_ptr(this, &first_error, NULL) == NULL) {
655
656 // first time
657 first_error_tid = mytid;
658 set_error_reported();
659
660 if (ShowMessageBoxOnError) {
661 show_message_box(buffer, sizeof(buffer));
662
663 // User has asked JVM to abort. Reset ShowMessageBoxOnError so the
664 // WatcherThread can kill JVM if the error handler hangs.
665 ShowMessageBoxOnError = false;
666 }
667
668 // reset signal handlers or exception filter; make sure recursive crashes
669 // are handled properly.
670 reset_signal_handlers();
671
672 } else {
673 // This is not the first error, see if it happened in a different thread
674 // or in the same thread during error reporting.
675 if (first_error_tid != mytid) {
676 jio_snprintf(buffer, sizeof(buffer),
677 "[thread " INT64_FORMAT " also had an error]",
678 mytid);
679 out.print_raw_cr(buffer);
680
681 // error reporting is not MT-safe, block current thread
682 os::infinite_sleep();
683
684 } else {
685 if (recursive_error_count++ > 30) {
686 out.print_raw_cr("[Too many errors, abort]");
687 os::die();
688 }
689
690 jio_snprintf(buffer, sizeof(buffer),
691 "[error occurred during error reporting %s, id 0x%x]",
692 first_error ? first_error->_current_step_info : "",
693 _id);
694 if (log.is_open()) {
695 log.cr();
696 log.print_raw_cr(buffer);
697 log.cr();
698 } else {
699 out.cr();
700 out.print_raw_cr(buffer);
701 out.cr();
702 }
703 }
704 }
705
706 // print to screen
707 if (!out_done) {
708 first_error->_verbose = false;
709
710 staticBufferStream sbs(buffer, sizeof(buffer), &out);
711 first_error->report(&sbs);
712
713 out_done = true;
714
715 first_error->_current_step = 0; // reset current_step
716 first_error->_current_step_info = ""; // reset current_step string
717 }
718
719 // print to error log file
720 if (!log_done) {
721 first_error->_verbose = true;
722
723 // see if log file is already open
724 if (!log.is_open()) {
725 // open log file
726 int fd = -1;
727
728 if (ErrorFile != NULL) {
729 bool copy_ok =
730 Arguments::copy_expand_pid(ErrorFile, strlen(ErrorFile), buffer, sizeof(buffer));
731 if (copy_ok) {
732 fd = open(buffer, O_WRONLY | O_CREAT | O_TRUNC, 0666);
733 }
734 }
735
736 if (fd == -1) {
737 const char *cwd = os::get_current_directory(buffer, sizeof(buffer));
738 size_t len = strlen(cwd);
739 // either user didn't specify, or the user's location failed,
740 // so use the default name in the current directory
741 jio_snprintf(&buffer[len], sizeof(buffer)-len, "%shs_err_pid%u.log",
742 os::file_separator(), os::current_process_id());
743 fd = open(buffer, O_WRONLY | O_CREAT | O_TRUNC, 0666);
744 }
745
746 if (fd == -1) {
747 // try temp directory
748 const char * tmpdir = os::get_temp_directory();
749 jio_snprintf(buffer, sizeof(buffer), "%shs_err_pid%u.log",
750 (tmpdir ? tmpdir : ""), os::current_process_id());
751 fd = open(buffer, O_WRONLY | O_CREAT | O_TRUNC, 0666);
752 }
753
754 if (fd != -1) {
755 out.print_raw("# An error report file with more information is saved as:\n# ");
756 out.print_raw_cr(buffer);
757 os::set_error_file(buffer);
758
759 log.set_fd(fd);
760 } else {
761 out.print_raw_cr("# Can not save log file, dump to screen..");
762 log.set_fd(defaultStream::output_fd());
763 }
764 }
765
766 staticBufferStream sbs(buffer, O_BUFLEN, &log);
767 first_error->report(&sbs);
768 first_error->_current_step = 0; // reset current_step
769 first_error->_current_step_info = ""; // reset current_step string
770
771 if (log.fd() != defaultStream::output_fd()) {
772 close(log.fd());
773 }
774
775 log.set_fd(-1);
776 log_done = true;
777 }
778
779
780 static bool skip_OnError = false;
781 if (!skip_OnError && OnError && OnError[0]) {
782 skip_OnError = true;
783
784 out.print_raw_cr("#");
785 out.print_raw ("# -XX:OnError=\"");
786 out.print_raw (OnError);
787 out.print_raw_cr("\"");
788
789 char* cmd;
790 const char* ptr = OnError;
791 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){
792 out.print_raw ("# Executing ");
793 #if defined(LINUX)
794 out.print_raw ("/bin/sh -c ");
795 #elif defined(SOLARIS)
796 out.print_raw ("/usr/bin/sh -c ");
797 #endif
798 out.print_raw ("\"");
799 out.print_raw (cmd);
800 out.print_raw_cr("\" ...");
801
802 os::fork_and_exec(cmd);
803 }
804
805 // done with OnError
806 OnError = NULL;
807 }
808
809 static bool skip_bug_url = false;
810 if (!skip_bug_url) {
811 skip_bug_url = true;
812
813 out.print_raw_cr("#");
814 print_bug_submit_message(&out, _thread);
815 }
816
817 if (!UseOSErrorReporting) {
818 // os::abort() will call abort hooks, try it first.
819 static bool skip_os_abort = false;
820 if (!skip_os_abort) {
821 skip_os_abort = true;
822 os::abort();
823 }
824
825 // if os::abort() doesn't abort, try os::die();
826 os::die();
827 }
828 }
829
830 /*
831 * OnOutOfMemoryError scripts/commands executed while VM is a safepoint - this
832 * ensures utilities such as jmap can observe the process is a consistent state.
833 */
834 class VM_ReportJavaOutOfMemory : public VM_Operation {
835 private:
836 VMError *_err;
837 public:
838 VM_ReportJavaOutOfMemory(VMError *err) { _err = err; }
839 VMOp_Type type() const { return VMOp_ReportJavaOutOfMemory; }
840 void doit();
841 };
842
843 void VM_ReportJavaOutOfMemory::doit() {
844 // Don't allocate large buffer on stack
845 static char buffer[O_BUFLEN];
846
847 tty->print_cr("#");
848 tty->print_cr("# java.lang.OutOfMemoryError: %s", _err->message());
849 tty->print_cr("# -XX:OnOutOfMemoryError=\"%s\"", OnOutOfMemoryError);
850
851 // make heap parsability
852 Universe::heap()->ensure_parsability(false); // no need to retire TLABs
853
854 char* cmd;
855 const char* ptr = OnOutOfMemoryError;
856 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){
857 tty->print("# Executing ");
858 #if defined(LINUX)
859 tty->print ("/bin/sh -c ");
860 #elif defined(SOLARIS)
861 tty->print ("/usr/bin/sh -c ");
862 #endif
863 tty->print_cr("\"%s\"...", cmd);
864
865 os::fork_and_exec(cmd);
866 }
867 }
868
869 void VMError::report_java_out_of_memory() {
870 if (OnOutOfMemoryError && OnOutOfMemoryError[0]) {
871 MutexLocker ml(Heap_lock);
872 VM_ReportJavaOutOfMemory op(this);
873 VMThread::execute(&op);
874 }
875 }