1 /*
2 * Copyright 2003-2009 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 !thread->is_hidden_from_external_view()) {
175 JavaThread* jt = (JavaThread*)thread;
176 if (jt->thread_state() == _thread_in_native) {
177 out->print_cr("# The crash happened outside the Java Virtual Machine in native code.\n# See problematic frame for where to report the bug.");
178 }
179 }
180 out->print_raw_cr("#");
181 }
182
183
184 // Return a string to describe the error
185 char* VMError::error_string(char* buf, int buflen) {
186 char signame_buf[64];
187 const char *signame = os::exception_name(_id, signame_buf, sizeof(signame_buf));
188
189 if (signame) {
190 jio_snprintf(buf, buflen,
191 "%s (0x%x) at pc=" PTR_FORMAT ", pid=%d, tid=" UINTX_FORMAT,
192 signame, _id, _pc,
193 os::current_process_id(), os::current_thread_id());
194 } else {
195 if (_filename != NULL && _lineno > 0) {
196 // skip directory names
197 char separator = os::file_separator()[0];
198 const char *p = strrchr(_filename, separator);
199
200 jio_snprintf(buf, buflen,
201 "Internal Error at %s:%d, pid=%d, tid=" UINTX_FORMAT " \nError: %s",
202 p ? p + 1 : _filename, _lineno,
203 os::current_process_id(), os::current_thread_id(),
204 _message ? _message : "");
205 } else {
206 jio_snprintf(buf, buflen,
207 "Internal Error (0x%x), pid=%d, tid=" UINTX_FORMAT,
208 _id, os::current_process_id(), os::current_thread_id());
209 }
210 }
211
212 return buf;
213 }
214
215 void VMError::print_stack_trace(outputStream* st, JavaThread* jt,
216 char* buf, int buflen, bool verbose) {
217 #ifdef ZERO
218 if (jt->zero_stack()->sp() && jt->top_zero_frame()) {
219 // StackFrameStream uses the frame anchor, which may not have
220 // been set up. This can be done at any time in Zero, however,
221 // so if it hasn't been set up then we just set it up now and
222 // clear it again when we're done.
223 bool has_last_Java_frame = jt->has_last_Java_frame();
224 if (!has_last_Java_frame)
225 jt->set_last_Java_frame();
226 st->print("Java frames:");
227
228 // If the top frame is a Shark frame and the frame anchor isn't
229 // set up then it's possible that the information in the frame
230 // is garbage: it could be from a previous decache, or it could
231 // simply have never been written. So we print a warning...
232 StackFrameStream sfs(jt);
233 if (!has_last_Java_frame && !sfs.is_done()) {
234 if (sfs.current()->zeroframe()->is_shark_frame()) {
235 st->print(" (TOP FRAME MAY BE JUNK)");
236 }
237 }
238 st->cr();
239
240 // Print the frames
241 for(int i = 0; !sfs.is_done(); sfs.next(), i++) {
242 sfs.current()->zero_print_on_error(i, st, buf, buflen);
243 st->cr();
244 }
245
246 // Reset the frame anchor if necessary
247 if (!has_last_Java_frame)
248 jt->reset_last_Java_frame();
249 }
250 #else
251 if (jt->has_last_Java_frame()) {
252 st->print_cr("Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)");
253 for(StackFrameStream sfs(jt); !sfs.is_done(); sfs.next()) {
254 sfs.current()->print_on_error(st, buf, buflen, verbose);
255 st->cr();
256 }
257 }
258 #endif // ZERO
259 }
260
261 // This is the main function to report a fatal error. Only one thread can
262 // call this function, so we don't need to worry about MT-safety. But it's
263 // possible that the error handler itself may crash or die on an internal
264 // error, for example, when the stack/heap is badly damaged. We must be
265 // able to handle recursive errors that happen inside error handler.
266 //
267 // Error reporting is done in several steps. If a crash or internal error
268 // occurred when reporting an error, the nested signal/exception handler
269 // can skip steps that are already (or partially) done. Error reporting will
270 // continue from the next step. This allows us to retrieve and print
271 // information that may be unsafe to get after a fatal error. If it happens,
272 // you may find nested report_and_die() frames when you look at the stack
273 // in a debugger.
274 //
275 // In general, a hang in error handler is much worse than a crash or internal
276 // error, as it's harder to recover from a hang. Deadlock can happen if we
277 // try to grab a lock that is already owned by current thread, or if the
278 // owner is blocked forever (e.g. in os::infinite_sleep()). If possible, the
279 // error handler and all the functions it called should avoid grabbing any
280 // lock. An important thing to notice is that memory allocation needs a lock.
281 //
282 // We should avoid using large stack allocated buffers. Many errors happen
283 // when stack space is already low. Making things even worse is that there
284 // could be nested report_and_die() calls on stack (see above). Only one
285 // thread can report error, so large buffers are statically allocated in data
286 // segment.
287
288 void VMError::report(outputStream* st) {
289 # define BEGIN if (_current_step == 0) { _current_step = 1;
290 # define STEP(n, s) } if (_current_step < n) { _current_step = n; _current_step_info = s;
291 # define END }
292
293 // don't allocate large buffer on stack
294 static char buf[O_BUFLEN];
295
296 BEGIN
297
298 STEP(10, "(printing fatal error message)")
299
300 st->print_cr("#");
301 st->print_cr("# A fatal error has been detected by the Java Runtime Environment:");
302
303 STEP(15, "(printing type of error)")
304
305 switch(_id) {
306 case oom_error:
307 st->print_cr("#");
308 st->print("# java.lang.OutOfMemoryError: ");
309 if (_size) {
310 st->print("requested ");
311 sprintf(buf,SIZE_FORMAT,_size);
312 st->print(buf);
313 st->print(" bytes");
314 if (_message != NULL) {
315 st->print(" for ");
316 st->print(_message);
317 }
318 st->print_cr(". Out of swap space?");
319 } else {
320 if (_message != NULL)
321 st->print_cr(_message);
322 }
323 break;
324 case internal_error:
325 default:
326 break;
327 }
328
329 STEP(20, "(printing exception/signal name)")
330
331 st->print_cr("#");
332 st->print("# ");
333 // Is it an OS exception/signal?
334 if (os::exception_name(_id, buf, sizeof(buf))) {
335 st->print("%s", buf);
336 st->print(" (0x%x)", _id); // signal number
337 st->print(" at pc=" PTR_FORMAT, _pc);
338 } else {
339 st->print("Internal Error");
340 if (_filename != NULL && _lineno > 0) {
341 #ifdef PRODUCT
342 // In product mode chop off pathname?
343 char separator = os::file_separator()[0];
344 const char *p = strrchr(_filename, separator);
345 const char *file = p ? p+1 : _filename;
346 #else
347 const char *file = _filename;
348 #endif
349 size_t len = strlen(file);
350 size_t buflen = sizeof(buf);
351
352 strncpy(buf, file, buflen);
353 if (len + 10 < buflen) {
354 sprintf(buf + len, ":%d", _lineno);
355 }
356 st->print(" (%s)", buf);
357 } else {
358 st->print(" (0x%x)", _id);
359 }
360 }
361
362 STEP(30, "(printing current thread and pid)")
363
364 // process id, thread id
365 st->print(", pid=%d", os::current_process_id());
366 st->print(", tid=" UINTX_FORMAT, os::current_thread_id());
367 st->cr();
368
369 STEP(40, "(printing error message)")
370
371 // error message
372 if (_message && _message[0] != '\0') {
373 st->print_cr("# Error: %s", _message);
374 }
375
376 STEP(50, "(printing Java version string)")
377
378 // VM version
379 st->print_cr("#");
380 JDK_Version::current().to_string(buf, sizeof(buf));
381 st->print_cr("# JRE version: %s", buf);
382 st->print_cr("# Java VM: %s (%s %s %s %s)",
383 Abstract_VM_Version::vm_name(),
384 Abstract_VM_Version::vm_release(),
385 Abstract_VM_Version::vm_info_string(),
386 Abstract_VM_Version::vm_platform_string(),
387 UseCompressedOops ? "compressed oops" : ""
388 );
389
390 STEP(60, "(printing problematic frame)")
391
392 // Print current frame if we have a context (i.e. it's a crash)
393 if (_context) {
394 st->print_cr("# Problematic frame:");
395 st->print("# ");
396 frame fr = os::fetch_frame_from_context(_context);
397 fr.print_on_error(st, buf, sizeof(buf));
398 st->cr();
399 st->print_cr("#");
400 }
401
402 STEP(65, "(printing bug submit message)")
403
404 if (_verbose) print_bug_submit_message(st, _thread);
405
406 STEP(70, "(printing thread)" )
407
408 if (_verbose) {
409 st->cr();
410 st->print_cr("--------------- T H R E A D ---------------");
411 st->cr();
412 }
413
414 STEP(80, "(printing current thread)" )
415
416 // current thread
417 if (_verbose) {
418 if (_thread) {
419 st->print("Current thread (" PTR_FORMAT "): ", _thread);
420 _thread->print_on_error(st, buf, sizeof(buf));
421 st->cr();
422 } else {
423 st->print_cr("Current thread is native thread");
424 }
425 st->cr();
426 }
427
428 STEP(90, "(printing siginfo)" )
429
430 // signal no, signal code, address that caused the fault
431 if (_verbose && _siginfo) {
432 os::print_siginfo(st, _siginfo);
433 st->cr();
434 }
435
436 STEP(100, "(printing registers, top of stack, instructions near pc)")
437
438 // registers, top of stack, instructions near pc
439 if (_verbose && _context) {
440 os::print_context(st, _context);
441 st->cr();
442 }
443
444 STEP(110, "(printing stack bounds)" )
445
446 if (_verbose) {
447 st->print("Stack: ");
448
449 address stack_top;
450 size_t stack_size;
451
452 if (_thread) {
453 stack_top = _thread->stack_base();
454 stack_size = _thread->stack_size();
455 } else {
456 stack_top = os::current_stack_base();
457 stack_size = os::current_stack_size();
458 }
459
460 address stack_bottom = stack_top - stack_size;
461 st->print("[" PTR_FORMAT "," PTR_FORMAT "]", stack_bottom, stack_top);
462
463 frame fr = _context ? os::fetch_frame_from_context(_context)
464 : os::current_frame();
465
466 if (fr.sp()) {
467 st->print(", sp=" PTR_FORMAT, fr.sp());
468 st->print(", free space=%" INTPTR_FORMAT "k",
469 ((intptr_t)fr.sp() - (intptr_t)stack_bottom) >> 10);
470 }
471
472 st->cr();
473 }
474
475 STEP(120, "(printing native stack)" )
476
477 if (_verbose) {
478 frame fr = _context ? os::fetch_frame_from_context(_context)
479 : os::current_frame();
480
481 // see if it's a valid frame
482 if (fr.pc()) {
483 st->print_cr("Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)");
484
485 int count = 0;
486
487 while (count++ < StackPrintLimit) {
488 fr.print_on_error(st, buf, sizeof(buf));
489 st->cr();
490 if (os::is_first_C_frame(&fr)) break;
491 fr = os::get_sender_for_C_frame(&fr);
492 }
493
494 if (count > StackPrintLimit) {
495 st->print_cr("...<more frames>...");
496 }
497
498 st->cr();
499 }
500 }
501
502 STEP(130, "(printing Java stack)" )
503
504 if (_verbose && _thread && _thread->is_Java_thread()) {
505 print_stack_trace(st, (JavaThread*)_thread, buf, sizeof(buf));
506 }
507
508 STEP(135, "(printing target Java thread stack)" )
509
510 // printing Java thread stack trace if it is involved in GC crash
511 if (_verbose && (_thread->is_Named_thread())) {
512 JavaThread* jt = ((NamedThread *)_thread)->processed_thread();
513 if (jt != NULL) {
514 st->print_cr("JavaThread " PTR_FORMAT " (nid = " UINTX_FORMAT ") was being processed", jt, jt->osthread()->thread_id());
515 print_stack_trace(st, jt, buf, sizeof(buf), true);
516 }
517 }
518
519 STEP(140, "(printing VM operation)" )
520
521 if (_verbose && _thread && _thread->is_VM_thread()) {
522 VMThread* t = (VMThread*)_thread;
523 VM_Operation* op = t->vm_operation();
524 if (op) {
525 op->print_on_error(st);
526 st->cr();
527 st->cr();
528 }
529 }
530
531 STEP(150, "(printing current compile task)" )
532
533 if (_verbose && _thread && _thread->is_Compiler_thread()) {
534 CompilerThread* t = (CompilerThread*)_thread;
535 if (t->task()) {
536 st->cr();
537 st->print_cr("Current CompileTask:");
538 t->task()->print_line_on_error(st, buf, sizeof(buf));
539 st->cr();
540 }
541 }
542
543 STEP(160, "(printing process)" )
544
545 if (_verbose) {
546 st->cr();
547 st->print_cr("--------------- P R O C E S S ---------------");
548 st->cr();
549 }
550
551 STEP(170, "(printing all threads)" )
552
553 // all threads
554 if (_verbose && _thread) {
555 Threads::print_on_error(st, _thread, buf, sizeof(buf));
556 st->cr();
557 }
558
559 STEP(175, "(printing VM state)" )
560
561 if (_verbose) {
562 // Safepoint state
563 st->print("VM state:");
564
565 if (SafepointSynchronize::is_synchronizing()) st->print("synchronizing");
566 else if (SafepointSynchronize::is_at_safepoint()) st->print("at safepoint");
567 else st->print("not at safepoint");
568
569 // Also see if error occurred during initialization or shutdown
570 if (!Universe::is_fully_initialized()) {
571 st->print(" (not fully initialized)");
572 } else if (VM_Exit::vm_exited()) {
573 st->print(" (shutting down)");
574 } else {
575 st->print(" (normal execution)");
576 }
577 st->cr();
578 st->cr();
579 }
580
581 STEP(180, "(printing owned locks on error)" )
582
583 // mutexes/monitors that currently have an owner
584 if (_verbose) {
585 print_owned_locks_on_error(st);
586 st->cr();
587 }
588
589 STEP(190, "(printing heap information)" )
590
591 if (_verbose && Universe::is_fully_initialized()) {
592 // print heap information before vm abort
593 Universe::print_on(st);
594 st->cr();
595 }
596
597 STEP(200, "(printing dynamic libraries)" )
598
599 if (_verbose) {
600 // dynamic libraries, or memory map
601 os::print_dll_info(st);
602 st->cr();
603 }
604
605 STEP(210, "(printing VM options)" )
606
607 if (_verbose) {
608 // VM options
609 Arguments::print_on(st);
610 st->cr();
611 }
612
613 STEP(220, "(printing environment variables)" )
614
615 if (_verbose) {
616 os::print_environment_variables(st, env_list, buf, sizeof(buf));
617 st->cr();
618 }
619
620 STEP(225, "(printing signal handlers)" )
621
622 if (_verbose) {
623 os::print_signal_handlers(st, buf, sizeof(buf));
624 st->cr();
625 }
626
627 STEP(230, "" )
628
629 if (_verbose) {
630 st->cr();
631 st->print_cr("--------------- S Y S T E M ---------------");
632 st->cr();
633 }
634
635 STEP(240, "(printing OS information)" )
636
637 if (_verbose) {
638 os::print_os_info(st);
639 st->cr();
640 }
641
642 STEP(250, "(printing CPU info)" )
643 if (_verbose) {
644 os::print_cpu_info(st);
645 st->cr();
646 }
647
648 STEP(260, "(printing memory info)" )
649
650 if (_verbose) {
651 os::print_memory_info(st);
652 st->cr();
653 }
654
655 STEP(270, "(printing internal vm info)" )
656
657 if (_verbose) {
658 st->print_cr("vm_info: %s", Abstract_VM_Version::internal_vm_info_string());
659 st->cr();
660 }
661
662 STEP(280, "(printing date and time)" )
663
664 if (_verbose) {
665 os::print_date_and_time(st);
666 st->cr();
667 }
668
669 END
670
671 # undef BEGIN
672 # undef STEP
673 # undef END
674 }
675
676
677 void VMError::report_and_die() {
678 // Don't allocate large buffer on stack
679 static char buffer[O_BUFLEN];
680
681 // First error, and its thread id. We must be able to handle native thread,
682 // so use thread id instead of Thread* to identify thread.
683 static VMError* first_error;
684 static jlong first_error_tid;
685
686 // An error could happen before tty is initialized or after it has been
687 // destroyed. Here we use a very simple unbuffered fdStream for printing.
688 // Only out.print_raw() and out.print_raw_cr() should be used, as other
689 // printing methods need to allocate large buffer on stack. To format a
690 // string, use jio_snprintf() with a static buffer or use staticBufferStream.
691 static fdStream out(defaultStream::output_fd());
692
693 // How many errors occurred in error handler when reporting first_error.
694 static int recursive_error_count;
695
696 // We will first print a brief message to standard out (verbose = false),
697 // then save detailed information in log file (verbose = true).
698 static bool out_done = false; // done printing to standard out
699 static bool log_done = false; // done saving error log
700 static fdStream log; // error log
701
702 if (SuppressFatalErrorMessage) {
703 os::abort();
704 }
705 jlong mytid = os::current_thread_id();
706 if (first_error == NULL &&
707 Atomic::cmpxchg_ptr(this, &first_error, NULL) == NULL) {
708
709 // first time
710 first_error_tid = mytid;
711 set_error_reported();
712
713 if (ShowMessageBoxOnError) {
714 show_message_box(buffer, sizeof(buffer));
715
716 // User has asked JVM to abort. Reset ShowMessageBoxOnError so the
717 // WatcherThread can kill JVM if the error handler hangs.
718 ShowMessageBoxOnError = false;
719 }
720
721 // reset signal handlers or exception filter; make sure recursive crashes
722 // are handled properly.
723 reset_signal_handlers();
724
725 } else {
726 // If UseOsErrorReporting we call this for each level of the call stack
727 // while searching for the exception handler. Only the first level needs
728 // to be reported.
729 if (UseOSErrorReporting && log_done) return;
730
731 // This is not the first error, see if it happened in a different thread
732 // or in the same thread during error reporting.
733 if (first_error_tid != mytid) {
734 jio_snprintf(buffer, sizeof(buffer),
735 "[thread " INT64_FORMAT " also had an error]",
736 mytid);
737 out.print_raw_cr(buffer);
738
739 // error reporting is not MT-safe, block current thread
740 os::infinite_sleep();
741
742 } else {
743 if (recursive_error_count++ > 30) {
744 out.print_raw_cr("[Too many errors, abort]");
745 os::die();
746 }
747
748 jio_snprintf(buffer, sizeof(buffer),
749 "[error occurred during error reporting %s, id 0x%x]",
750 first_error ? first_error->_current_step_info : "",
751 _id);
752 if (log.is_open()) {
753 log.cr();
754 log.print_raw_cr(buffer);
755 log.cr();
756 } else {
757 out.cr();
758 out.print_raw_cr(buffer);
759 out.cr();
760 }
761 }
762 }
763
764 // print to screen
765 if (!out_done) {
766 first_error->_verbose = false;
767
768 staticBufferStream sbs(buffer, sizeof(buffer), &out);
769 first_error->report(&sbs);
770
771 out_done = true;
772
773 first_error->_current_step = 0; // reset current_step
774 first_error->_current_step_info = ""; // reset current_step string
775 }
776
777 // print to error log file
778 if (!log_done) {
779 first_error->_verbose = true;
780
781 // see if log file is already open
782 if (!log.is_open()) {
783 // open log file
784 int fd = -1;
785
786 if (ErrorFile != NULL) {
787 bool copy_ok =
788 Arguments::copy_expand_pid(ErrorFile, strlen(ErrorFile), buffer, sizeof(buffer));
789 if (copy_ok) {
790 fd = open(buffer, O_WRONLY | O_CREAT | O_TRUNC, 0666);
791 }
792 }
793
794 if (fd == -1) {
795 const char *cwd = os::get_current_directory(buffer, sizeof(buffer));
796 size_t len = strlen(cwd);
797 // either user didn't specify, or the user's location failed,
798 // so use the default name in the current directory
799 jio_snprintf(&buffer[len], sizeof(buffer)-len, "%shs_err_pid%u.log",
800 os::file_separator(), os::current_process_id());
801 fd = open(buffer, O_WRONLY | O_CREAT | O_TRUNC, 0666);
802 }
803
804 if (fd == -1) {
805 // try temp directory
806 const char * tmpdir = os::get_temp_directory();
807 jio_snprintf(buffer, sizeof(buffer), "%s%shs_err_pid%u.log",
808 tmpdir, os::file_separator(), os::current_process_id());
809 fd = open(buffer, O_WRONLY | O_CREAT | O_TRUNC, 0666);
810 }
811
812 if (fd != -1) {
813 out.print_raw("# An error report file with more information is saved as:\n# ");
814 out.print_raw_cr(buffer);
815 os::set_error_file(buffer);
816
817 log.set_fd(fd);
818 } else {
819 out.print_raw_cr("# Can not save log file, dump to screen..");
820 log.set_fd(defaultStream::output_fd());
821 }
822 }
823
824 staticBufferStream sbs(buffer, O_BUFLEN, &log);
825 first_error->report(&sbs);
826 first_error->_current_step = 0; // reset current_step
827 first_error->_current_step_info = ""; // reset current_step string
828
829 if (log.fd() != defaultStream::output_fd()) {
830 close(log.fd());
831 }
832
833 log.set_fd(-1);
834 log_done = true;
835 }
836
837
838 static bool skip_OnError = false;
839 if (!skip_OnError && OnError && OnError[0]) {
840 skip_OnError = true;
841
842 out.print_raw_cr("#");
843 out.print_raw ("# -XX:OnError=\"");
844 out.print_raw (OnError);
845 out.print_raw_cr("\"");
846
847 char* cmd;
848 const char* ptr = OnError;
849 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){
850 out.print_raw ("# Executing ");
851 #if defined(LINUX)
852 out.print_raw ("/bin/sh -c ");
853 #elif defined(SOLARIS)
854 out.print_raw ("/usr/bin/sh -c ");
855 #endif
856 out.print_raw ("\"");
857 out.print_raw (cmd);
858 out.print_raw_cr("\" ...");
859
860 os::fork_and_exec(cmd);
861 }
862
863 // done with OnError
864 OnError = NULL;
865 }
866
867 static bool skip_bug_url = false;
868 if (!skip_bug_url) {
869 skip_bug_url = true;
870
871 out.print_raw_cr("#");
872 print_bug_submit_message(&out, _thread);
873 }
874
875 if (!UseOSErrorReporting) {
876 // os::abort() will call abort hooks, try it first.
877 static bool skip_os_abort = false;
878 if (!skip_os_abort) {
879 skip_os_abort = true;
880 os::abort();
881 }
882
883 // if os::abort() doesn't abort, try os::die();
884 os::die();
885 }
886 }
887
888 /*
889 * OnOutOfMemoryError scripts/commands executed while VM is a safepoint - this
890 * ensures utilities such as jmap can observe the process is a consistent state.
891 */
892 class VM_ReportJavaOutOfMemory : public VM_Operation {
893 private:
894 VMError *_err;
895 public:
896 VM_ReportJavaOutOfMemory(VMError *err) { _err = err; }
897 VMOp_Type type() const { return VMOp_ReportJavaOutOfMemory; }
898 void doit();
899 };
900
901 void VM_ReportJavaOutOfMemory::doit() {
902 // Don't allocate large buffer on stack
903 static char buffer[O_BUFLEN];
904
905 tty->print_cr("#");
906 tty->print_cr("# java.lang.OutOfMemoryError: %s", _err->message());
907 tty->print_cr("# -XX:OnOutOfMemoryError=\"%s\"", OnOutOfMemoryError);
908
909 // make heap parsability
910 Universe::heap()->ensure_parsability(false); // no need to retire TLABs
911
912 char* cmd;
913 const char* ptr = OnOutOfMemoryError;
914 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){
915 tty->print("# Executing ");
916 #if defined(LINUX)
917 tty->print ("/bin/sh -c ");
918 #elif defined(SOLARIS)
919 tty->print ("/usr/bin/sh -c ");
920 #endif
921 tty->print_cr("\"%s\"...", cmd);
922
923 os::fork_and_exec(cmd);
924 }
925 }
926
927 void VMError::report_java_out_of_memory() {
928 if (OnOutOfMemoryError && OnOutOfMemoryError[0]) {
929 MutexLocker ml(Heap_lock);
930 VM_ReportJavaOutOfMemory op(this);
931 VMThread::execute(&op);
932 }
933 }