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