1 /*
2 * Copyright (c) 2003, 2012, 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 "precompiled.hpp"
26 #include "compiler/compileBroker.hpp"
27 #include "gc_interface/collectedHeap.hpp"
28 #include "prims/whitebox.hpp"
29 #include "runtime/arguments.hpp"
30 #include "runtime/frame.inline.hpp"
31 #include "runtime/init.hpp"
32 #include "runtime/os.hpp"
33 #include "runtime/thread.hpp"
34 #include "runtime/vmThread.hpp"
35 #include "runtime/vm_operations.hpp"
36 #include "utilities/debug.hpp"
37 #include "utilities/decoder.hpp"
38 #include "utilities/defaultStream.hpp"
39 #include "utilities/errorReporter.hpp"
40 #include "utilities/events.hpp"
41 #include "utilities/top.hpp"
42 #include "utilities/vmError.hpp"
43
44 // List of environment variables that should be reported in error log file.
45 const char *env_list[] = {
46 // All platforms
47 "JAVA_HOME", "JRE_HOME", "JAVA_TOOL_OPTIONS", "_JAVA_OPTIONS", "CLASSPATH",
48 "JAVA_COMPILER", "PATH", "USERNAME",
49
50 // Env variables that are defined on Solaris/Linux/BSD
51 "LD_LIBRARY_PATH", "LD_PRELOAD", "SHELL", "DISPLAY",
52 "HOSTTYPE", "OSTYPE", "ARCH", "MACHTYPE",
53
54 // defined on Linux
55 "LD_ASSUME_KERNEL", "_JAVA_SR_SIGNUM",
56
57 // defined on Darwin
58 "DYLD_LIBRARY_PATH", "DYLD_FALLBACK_LIBRARY_PATH",
59 "DYLD_FRAMEWORK_PATH", "DYLD_FALLBACK_FRAMEWORK_PATH",
60 "DYLD_INSERT_LIBRARIES",
61
62 // defined on Windows
63 "OS", "PROCESSOR_IDENTIFIER", "_ALT_JAVA_HOME_DIR",
64
65 (const char *)0
66 };
67
68 // Fatal error handler for internal errors and crashes.
69 //
70 // The default behavior of fatal error handler is to print a brief message
71 // to standard out (defaultStream::output_fd()), then save detailed information
72 // into an error report file (hs_err_pid<pid>.log) and abort VM. If multiple
73 // threads are having troubles at the same time, only one error is reported.
74 // The thread that is reporting error will abort VM when it is done, all other
75 // threads are blocked forever inside report_and_die().
76
77 // Constructor for crashes
78 VMError::VMError(Thread* thread, unsigned int sig, address pc, void* siginfo, void* context) {
79 _thread = thread;
80 _id = sig;
81 _pc = pc;
82 _siginfo = siginfo;
83 _context = context;
84
85 _verbose = false;
86 _current_step = 0;
87 _current_step_info = NULL;
88
89 _message = NULL;
90 _detail_msg = NULL;
91 _filename = NULL;
92 _lineno = 0;
93
94 _size = 0;
95 }
96
97 // Constructor for internal errors
98 VMError::VMError(Thread* thread, const char* filename, int lineno,
99 const char* message, const char * detail_msg)
100 {
101 _thread = thread;
102 _id = internal_error; // Value that's not an OS exception/signal
103 _filename = filename;
104 _lineno = lineno;
105 _message = message;
106 _detail_msg = detail_msg;
107
108 _verbose = false;
109 _current_step = 0;
110 _current_step_info = NULL;
111
112 _pc = NULL;
113 _siginfo = NULL;
114 _context = NULL;
115
116 _size = 0;
117 }
118
119 // Constructor for OOM errors
120 VMError::VMError(Thread* thread, const char* filename, int lineno, size_t size,
121 const char* message) {
122 _thread = thread;
123 _id = oom_error; // Value that's not an OS exception/signal
124 _filename = filename;
125 _lineno = lineno;
126 _message = message;
127 _detail_msg = NULL;
128
129 _verbose = false;
130 _current_step = 0;
131 _current_step_info = NULL;
132
133 _pc = NULL;
134 _siginfo = NULL;
135 _context = NULL;
136
137 _size = size;
138 }
139
140
141 // Constructor for non-fatal errors
142 VMError::VMError(const char* message) {
143 _thread = NULL;
144 _id = internal_error; // Value that's not an OS exception/signal
145 _filename = NULL;
146 _lineno = 0;
147 _message = message;
148 _detail_msg = NULL;
149
150 _verbose = false;
151 _current_step = 0;
152 _current_step_info = NULL;
153
154 _pc = NULL;
155 _siginfo = NULL;
156 _context = NULL;
157
158 _size = 0;
159 }
160
161 // -XX:OnError=<string>, where <string> can be a list of commands, separated
162 // by ';'. "%p" is replaced by current process id (pid); "%%" is replaced by
163 // a single "%". Some examples:
164 //
165 // -XX:OnError="pmap %p" // show memory map
166 // -XX:OnError="gcore %p; dbx - %p" // dump core and launch debugger
167 // -XX:OnError="cat hs_err_pid%p.log | mail my_email@sun.com"
168 // -XX:OnError="kill -9 %p" // ?#!@#
169
170 // A simple parser for -XX:OnError, usage:
171 // ptr = OnError;
172 // while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr) != NULL)
173 // ... ...
174 static char* next_OnError_command(char* buf, int buflen, const char** ptr) {
175 if (ptr == NULL || *ptr == NULL) return NULL;
176
177 const char* cmd = *ptr;
178
179 // skip leading blanks or ';'
180 while (*cmd == ' ' || *cmd == ';') cmd++;
181
182 if (*cmd == '\0') return NULL;
183
184 const char * cmdend = cmd;
185 while (*cmdend != '\0' && *cmdend != ';') cmdend++;
186
187 Arguments::copy_expand_pid(cmd, cmdend - cmd, buf, buflen);
188
189 *ptr = (*cmdend == '\0' ? cmdend : cmdend + 1);
190 return buf;
191 }
192
193
194 static void print_bug_submit_message(outputStream *out, Thread *thread) {
195 if (out == NULL) return;
196 out->print_raw_cr("# If you would like to submit a bug report, please visit:");
197 out->print_raw ("# ");
198 out->print_raw_cr(Arguments::java_vendor_url_bug());
199 // If the crash is in native code, encourage user to submit a bug to the
200 // provider of that code.
201 if (thread && thread->is_Java_thread() &&
202 !thread->is_hidden_from_external_view()) {
203 JavaThread* jt = (JavaThread*)thread;
204 if (jt->thread_state() == _thread_in_native) {
205 out->print_cr("# The crash happened outside the Java Virtual Machine in native code.\n# See problematic frame for where to report the bug.");
206 }
207 }
208 out->print_raw_cr("#");
209 }
210
211 bool VMError::coredump_status;
212 char VMError::coredump_message[O_BUFLEN];
213
214 void VMError::report_coredump_status(const char* message, bool status) {
215 coredump_status = status;
216 strncpy(coredump_message, message, sizeof(coredump_message));
217 coredump_message[sizeof(coredump_message)-1] = 0;
218 }
219
220
221 // Return a string to describe the error
222 char* VMError::error_string(char* buf, int buflen) {
223 char signame_buf[64];
224 const char *signame = os::exception_name(_id, signame_buf, sizeof(signame_buf));
225
226 if (signame) {
227 jio_snprintf(buf, buflen,
228 "%s (0x%x) at pc=" PTR_FORMAT ", pid=%d, tid=" UINTX_FORMAT,
229 signame, _id, _pc,
230 os::current_process_id(), os::current_thread_id());
231 } else if (_filename != NULL && _lineno > 0) {
232 // skip directory names
233 char separator = os::file_separator()[0];
234 const char *p = strrchr(_filename, separator);
235 int n = jio_snprintf(buf, buflen,
236 "Internal Error at %s:%d, pid=%d, tid=" UINTX_FORMAT,
237 p ? p + 1 : _filename, _lineno,
238 os::current_process_id(), os::current_thread_id());
239 if (n >= 0 && n < buflen && _message) {
240 if (_detail_msg) {
241 jio_snprintf(buf + n, buflen - n, "%s%s: %s",
242 os::line_separator(), _message, _detail_msg);
243 } else {
244 jio_snprintf(buf + n, buflen - n, "%sError: %s",
245 os::line_separator(), _message);
246 }
247 }
248 } else {
249 jio_snprintf(buf, buflen,
250 "Internal Error (0x%x), pid=%d, tid=" UINTX_FORMAT,
251 _id, os::current_process_id(), os::current_thread_id());
252 }
253
254 return buf;
255 }
256
257 void VMError::print_stack_trace(outputStream* st, JavaThread* jt,
258 char* buf, int buflen, bool verbose) {
259 #ifdef ZERO
260 if (jt->zero_stack()->sp() && jt->top_zero_frame()) {
261 // StackFrameStream uses the frame anchor, which may not have
262 // been set up. This can be done at any time in Zero, however,
263 // so if it hasn't been set up then we just set it up now and
264 // clear it again when we're done.
265 bool has_last_Java_frame = jt->has_last_Java_frame();
266 if (!has_last_Java_frame)
267 jt->set_last_Java_frame();
268 st->print("Java frames:");
269
270 // If the top frame is a Shark frame and the frame anchor isn't
271 // set up then it's possible that the information in the frame
272 // is garbage: it could be from a previous decache, or it could
273 // simply have never been written. So we print a warning...
274 StackFrameStream sfs(jt);
275 if (!has_last_Java_frame && !sfs.is_done()) {
276 if (sfs.current()->zeroframe()->is_shark_frame()) {
277 st->print(" (TOP FRAME MAY BE JUNK)");
278 }
279 }
280 st->cr();
281
282 // Print the frames
283 for(int i = 0; !sfs.is_done(); sfs.next(), i++) {
284 sfs.current()->zero_print_on_error(i, st, buf, buflen);
285 st->cr();
286 }
287
288 // Reset the frame anchor if necessary
289 if (!has_last_Java_frame)
290 jt->reset_last_Java_frame();
291 }
292 #else
293 if (jt->has_last_Java_frame()) {
294 st->print_cr("Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)");
295 for(StackFrameStream sfs(jt); !sfs.is_done(); sfs.next()) {
296 sfs.current()->print_on_error(st, buf, buflen, verbose);
297 st->cr();
298 }
299 }
300 #endif // ZERO
301 }
302
303 // This is the main function to report a fatal error. Only one thread can
304 // call this function, so we don't need to worry about MT-safety. But it's
305 // possible that the error handler itself may crash or die on an internal
306 // error, for example, when the stack/heap is badly damaged. We must be
307 // able to handle recursive errors that happen inside error handler.
308 //
309 // Error reporting is done in several steps. If a crash or internal error
310 // occurred when reporting an error, the nested signal/exception handler
311 // can skip steps that are already (or partially) done. Error reporting will
312 // continue from the next step. This allows us to retrieve and print
313 // information that may be unsafe to get after a fatal error. If it happens,
314 // you may find nested report_and_die() frames when you look at the stack
315 // in a debugger.
316 //
317 // In general, a hang in error handler is much worse than a crash or internal
318 // error, as it's harder to recover from a hang. Deadlock can happen if we
319 // try to grab a lock that is already owned by current thread, or if the
320 // owner is blocked forever (e.g. in os::infinite_sleep()). If possible, the
321 // error handler and all the functions it called should avoid grabbing any
322 // lock. An important thing to notice is that memory allocation needs a lock.
323 //
324 // We should avoid using large stack allocated buffers. Many errors happen
325 // when stack space is already low. Making things even worse is that there
326 // could be nested report_and_die() calls on stack (see above). Only one
327 // thread can report error, so large buffers are statically allocated in data
328 // segment.
329
330 void VMError::report(outputStream* st) {
331 # define BEGIN if (_current_step == 0) { _current_step = 1;
332 # define STEP(n, s) } if (_current_step < n) { _current_step = n; _current_step_info = s;
333 # define END }
334
335 // don't allocate large buffer on stack
336 static char buf[O_BUFLEN];
337
338 BEGIN
339
340 STEP(10, "(printing fatal error message)")
341
342 st->print_cr("#");
343 if (should_report_bug(_id)) {
344 st->print_cr("# A fatal error has been detected by the Java Runtime Environment:");
345 } else {
346 st->print_cr("# There is insufficient memory for the Java "
347 "Runtime Environment to continue.");
348 }
349
350 STEP(15, "(printing type of error)")
351
352 switch(_id) {
353 case oom_error:
354 if (_size) {
355 st->print("# Native memory allocation (malloc) failed to allocate ");
356 jio_snprintf(buf, sizeof(buf), SIZE_FORMAT, _size);
357 st->print(buf);
358 st->print(" bytes");
359 if (_message != NULL) {
360 st->print(" for ");
361 st->print(_message);
362 }
363 st->cr();
364 } else {
365 if (_message != NULL)
366 st->print("# ");
367 st->print_cr(_message);
368 }
369 // In error file give some solutions
370 if (_verbose) {
371 st->print_cr("# Possible reasons:");
372 st->print_cr("# The system is out of physical RAM or swap space");
373 st->print_cr("# In 32 bit mode, the process size limit was hit");
374 st->print_cr("# Possible solutions:");
375 st->print_cr("# Reduce memory load on the system");
376 st->print_cr("# Increase physical memory or swap space");
377 st->print_cr("# Check if swap backing store is full");
378 st->print_cr("# Use 64 bit Java on a 64 bit OS");
379 st->print_cr("# Decrease Java heap size (-Xmx/-Xms)");
380 st->print_cr("# Decrease number of Java threads");
381 st->print_cr("# Decrease Java thread stack sizes (-Xss)");
382 st->print_cr("# Set larger code cache with -XX:ReservedCodeCacheSize=");
383 st->print_cr("# This output file may be truncated or incomplete.");
384 } else {
385 return; // that's enough for the screen
386 }
387 break;
388 case internal_error:
389 default:
390 break;
391 }
392
393 STEP(20, "(printing exception/signal name)")
394
395 st->print_cr("#");
396 st->print("# ");
397 // Is it an OS exception/signal?
398 if (os::exception_name(_id, buf, sizeof(buf))) {
399 st->print("%s", buf);
400 st->print(" (0x%x)", _id); // signal number
401 st->print(" at pc=" PTR_FORMAT, _pc);
402 } else {
403 if (should_report_bug(_id)) {
404 st->print("Internal Error");
405 } else {
406 st->print("Out of Memory Error");
407 }
408 if (_filename != NULL && _lineno > 0) {
409 #ifdef PRODUCT
410 // In product mode chop off pathname?
411 char separator = os::file_separator()[0];
412 const char *p = strrchr(_filename, separator);
413 const char *file = p ? p+1 : _filename;
414 #else
415 const char *file = _filename;
416 #endif
417 size_t len = strlen(file);
418 size_t buflen = sizeof(buf);
419
420 strncpy(buf, file, buflen);
421 if (len + 10 < buflen) {
422 sprintf(buf + len, ":%d", _lineno);
423 }
424 st->print(" (%s)", buf);
425 } else {
426 st->print(" (0x%x)", _id);
427 }
428 }
429
430 STEP(30, "(printing current thread and pid)")
431
432 // process id, thread id
433 st->print(", pid=%d", os::current_process_id());
434 st->print(", tid=" UINTX_FORMAT, os::current_thread_id());
435 st->cr();
436
437 STEP(40, "(printing error message)")
438
439 if (should_report_bug(_id)) { // already printed the message.
440 // error message
441 if (_detail_msg) {
442 st->print_cr("# %s: %s", _message ? _message : "Error", _detail_msg);
443 } else if (_message) {
444 st->print_cr("# Error: %s", _message);
445 }
446 }
447
448 STEP(50, "(printing Java version string)")
449
450 // VM version
451 st->print_cr("#");
452 JDK_Version::current().to_string(buf, sizeof(buf));
453 st->print_cr("# JRE version: %s", buf);
454 st->print_cr("# Java VM: %s (%s %s %s %s)",
455 Abstract_VM_Version::vm_name(),
456 Abstract_VM_Version::vm_release(),
457 Abstract_VM_Version::vm_info_string(),
458 Abstract_VM_Version::vm_platform_string(),
459 UseCompressedOops ? "compressed oops" : ""
460 );
461
462 STEP(60, "(printing problematic frame)")
463
464 // Print current frame if we have a context (i.e. it's a crash)
465 if (_context) {
466 st->print_cr("# Problematic frame:");
467 st->print("# ");
468 frame fr = os::fetch_frame_from_context(_context);
469 fr.print_on_error(st, buf, sizeof(buf));
470 st->cr();
471 st->print_cr("#");
472 }
473 STEP(63, "(printing core file information)")
474 st->print("# ");
475 if (coredump_status) {
476 st->print("Core dump written. Default location: %s", coredump_message);
477 } else {
478 st->print("Failed to write core dump. %s", coredump_message);
479 }
480 st->print_cr("");
481 st->print_cr("#");
482
483 STEP(65, "(printing bug submit message)")
484
485 if (should_report_bug(_id) && _verbose) {
486 print_bug_submit_message(st, _thread);
487 }
488
489 STEP(70, "(printing thread)" )
490
491 if (_verbose) {
492 st->cr();
493 st->print_cr("--------------- T H R E A D ---------------");
494 st->cr();
495 }
496
497 STEP(80, "(printing current thread)" )
498
499 // current thread
500 if (_verbose) {
501 if (_thread) {
502 st->print("Current thread (" PTR_FORMAT "): ", _thread);
503 _thread->print_on_error(st, buf, sizeof(buf));
504 st->cr();
505 } else {
506 st->print_cr("Current thread is native thread");
507 }
508 st->cr();
509 }
510
511 STEP(90, "(printing siginfo)" )
512
513 // signal no, signal code, address that caused the fault
514 if (_verbose && _siginfo) {
515 os::print_siginfo(st, _siginfo);
516 st->cr();
517 }
518
519 STEP(100, "(printing registers, top of stack, instructions near pc)")
520
521 // registers, top of stack, instructions near pc
522 if (_verbose && _context) {
523 os::print_context(st, _context);
524 st->cr();
525 }
526
527 STEP(105, "(printing register info)")
528
529 // decode register contents if possible
530 if (_verbose && _context && Universe::is_fully_initialized()) {
531 os::print_register_info(st, _context);
532 st->cr();
533 }
534
535 STEP(110, "(printing stack bounds)" )
536
537 if (_verbose) {
538 st->print("Stack: ");
539
540 address stack_top;
541 size_t stack_size;
542
543 if (_thread) {
544 stack_top = _thread->stack_base();
545 stack_size = _thread->stack_size();
546 } else {
547 stack_top = os::current_stack_base();
548 stack_size = os::current_stack_size();
549 }
550
551 address stack_bottom = stack_top - stack_size;
552 st->print("[" PTR_FORMAT "," PTR_FORMAT "]", stack_bottom, stack_top);
553
554 frame fr = _context ? os::fetch_frame_from_context(_context)
555 : os::current_frame();
556
557 if (fr.sp()) {
558 st->print(", sp=" PTR_FORMAT, fr.sp());
559 size_t free_stack_size = pointer_delta(fr.sp(), stack_bottom, 1024);
560 st->print(", free space=" SIZE_FORMAT "k", free_stack_size);
561 }
562
563 st->cr();
564 }
565
566 STEP(120, "(printing native stack)" )
567
568 if (_verbose) {
569 frame fr = _context ? os::fetch_frame_from_context(_context)
570 : os::current_frame();
571
572 // see if it's a valid frame
573 if (fr.pc()) {
574 st->print_cr("Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)");
575
576
577 int count = 0;
578 while (count++ < StackPrintLimit) {
579 fr.print_on_error(st, buf, sizeof(buf));
580 st->cr();
581 if (os::is_first_C_frame(&fr)) break;
582 fr = os::get_sender_for_C_frame(&fr);
583 }
584
585 if (count > StackPrintLimit) {
586 st->print_cr("...<more frames>...");
587 }
588
589 st->cr();
590 }
591 }
592
593 STEP(130, "(printing Java stack)" )
594
595 if (_verbose && _thread && _thread->is_Java_thread()) {
596 print_stack_trace(st, (JavaThread*)_thread, buf, sizeof(buf));
597 }
598
599 STEP(135, "(printing target Java thread stack)" )
600
601 // printing Java thread stack trace if it is involved in GC crash
602 if (_verbose && _thread && (_thread->is_Named_thread())) {
603 JavaThread* jt = ((NamedThread *)_thread)->processed_thread();
604 if (jt != NULL) {
605 st->print_cr("JavaThread " PTR_FORMAT " (nid = " UINTX_FORMAT ") was being processed", jt, jt->osthread()->thread_id());
606 print_stack_trace(st, jt, buf, sizeof(buf), true);
607 }
608 }
609
610 STEP(140, "(printing VM operation)" )
611
612 if (_verbose && _thread && _thread->is_VM_thread()) {
613 VMThread* t = (VMThread*)_thread;
614 VM_Operation* op = t->vm_operation();
615 if (op) {
616 op->print_on_error(st);
617 st->cr();
618 st->cr();
619 }
620 }
621
622 STEP(150, "(printing current compile task)" )
623
624 if (_verbose && _thread && _thread->is_Compiler_thread()) {
625 CompilerThread* t = (CompilerThread*)_thread;
626 if (t->task()) {
627 st->cr();
628 st->print_cr("Current CompileTask:");
629 t->task()->print_line_on_error(st, buf, sizeof(buf));
630 st->cr();
631 }
632 }
633
634 STEP(160, "(printing process)" )
635
636 if (_verbose) {
637 st->cr();
638 st->print_cr("--------------- P R O C E S S ---------------");
639 st->cr();
640 }
641
642 STEP(170, "(printing all threads)" )
643
644 // all threads
645 if (_verbose && _thread) {
646 Threads::print_on_error(st, _thread, buf, sizeof(buf));
647 st->cr();
648 }
649
650 STEP(175, "(printing VM state)" )
651
652 if (_verbose) {
653 // Safepoint state
654 st->print("VM state:");
655
656 if (SafepointSynchronize::is_synchronizing()) st->print("synchronizing");
657 else if (SafepointSynchronize::is_at_safepoint()) st->print("at safepoint");
658 else st->print("not at safepoint");
659
660 // Also see if error occurred during initialization or shutdown
661 if (!Universe::is_fully_initialized()) {
662 st->print(" (not fully initialized)");
663 } else if (VM_Exit::vm_exited()) {
664 st->print(" (shutting down)");
665 } else {
666 st->print(" (normal execution)");
667 }
668 st->cr();
669 st->cr();
670 }
671
672 STEP(180, "(printing owned locks on error)" )
673
674 // mutexes/monitors that currently have an owner
675 if (_verbose) {
676 print_owned_locks_on_error(st);
677 st->cr();
678 }
679
680 STEP(190, "(printing heap information)" )
681
682 if (_verbose && Universe::is_fully_initialized()) {
683 // Print heap information before vm abort. As we'd like as much
684 // information as possible in the report we ask for the
685 // extended (i.e., more detailed) version.
686 Universe::print_on(st, true /* extended */);
687 st->cr();
688
689 Universe::heap()->barrier_set()->print_on(st);
690 st->cr();
691
692 st->print_cr("Polling page: " INTPTR_FORMAT, os::get_polling_page());
693 st->cr();
694 }
695
696 STEP(195, "(printing code cache information)" )
697
698 if (_verbose && Universe::is_fully_initialized()) {
699 // print code cache information before vm abort
700 CodeCache::print_bounds(st);
701 st->cr();
702 }
703
704 STEP(200, "(printing ring buffers)" )
705
706 if (_verbose) {
707 Events::print_all(st);
708 st->cr();
709 }
710
711 STEP(205, "(printing dynamic libraries)" )
712
713 if (_verbose) {
714 // dynamic libraries, or memory map
715 os::print_dll_info(st);
716 st->cr();
717 }
718
719 STEP(210, "(printing VM options)" )
720
721 if (_verbose) {
722 // VM options
723 Arguments::print_on(st);
724 st->cr();
725 }
726
727 STEP(215, "(printing warning if internal testing API used)" )
728
729 if (WhiteBox::used()) {
730 st->print_cr("Unsupported internal testing APIs have been used.");
731 st->cr();
732 }
733
734 STEP(220, "(printing environment variables)" )
735
736 if (_verbose) {
737 os::print_environment_variables(st, env_list, buf, sizeof(buf));
738 st->cr();
739 }
740
741 STEP(225, "(printing signal handlers)" )
742
743 if (_verbose) {
744 os::print_signal_handlers(st, buf, sizeof(buf));
745 st->cr();
746 }
747
748 STEP(230, "" )
749
750 if (_verbose) {
751 st->cr();
752 st->print_cr("--------------- S Y S T E M ---------------");
753 st->cr();
754 }
755
756 STEP(240, "(printing OS information)" )
757
758 if (_verbose) {
759 os::print_os_info(st);
760 st->cr();
761 }
762
763 STEP(250, "(printing CPU info)" )
764 if (_verbose) {
765 os::print_cpu_info(st);
766 st->cr();
767 }
768
769 STEP(260, "(printing memory info)" )
770
771 if (_verbose) {
772 os::print_memory_info(st);
773 st->cr();
774 }
775
776 STEP(270, "(printing internal vm info)" )
777
778 if (_verbose) {
779 st->print_cr("vm_info: %s", Abstract_VM_Version::internal_vm_info_string());
780 st->cr();
781 }
782
783 STEP(280, "(printing date and time)" )
784
785 if (_verbose) {
786 os::print_date_and_time(st);
787 st->cr();
788 }
789
790 END
791
792 # undef BEGIN
793 # undef STEP
794 # undef END
795 }
796
797 VMError* volatile VMError::first_error = NULL;
798 volatile jlong VMError::first_error_tid = -1;
799
800 void VMError::report_and_die() {
801 // Don't allocate large buffer on stack
802 static char buffer[O_BUFLEN];
803
804 // An error could happen before tty is initialized or after it has been
805 // destroyed. Here we use a very simple unbuffered fdStream for printing.
806 // Only out.print_raw() and out.print_raw_cr() should be used, as other
807 // printing methods need to allocate large buffer on stack. To format a
808 // string, use jio_snprintf() with a static buffer or use staticBufferStream.
809 static fdStream out(defaultStream::output_fd());
810
811 // How many errors occurred in error handler when reporting first_error.
812 static int recursive_error_count;
813
814 // We will first print a brief message to standard out (verbose = false),
815 // then save detailed information in log file (verbose = true).
816 static bool out_done = false; // done printing to standard out
817 static bool log_done = false; // done saving error log
818 static bool transmit_report_done = false; // done error reporting
819 static fdStream log; // error log
820
821 if (SuppressFatalErrorMessage) {
822 os::abort();
823 }
824 jlong mytid = os::current_thread_id();
825 if (first_error == NULL &&
826 Atomic::cmpxchg_ptr(this, &first_error, NULL) == NULL) {
827
828 // first time
829 first_error_tid = mytid;
830 set_error_reported();
831
832 if (ShowMessageBoxOnError || PauseAtExit) {
833 show_message_box(buffer, sizeof(buffer));
834
835 // User has asked JVM to abort. Reset ShowMessageBoxOnError so the
836 // WatcherThread can kill JVM if the error handler hangs.
837 ShowMessageBoxOnError = false;
838 }
839
840 // Write a minidump on Windows, check core dump limits on Linux/Solaris
841 os::check_or_create_dump(_siginfo, _context, buffer, sizeof(buffer));
842
843 // reset signal handlers or exception filter; make sure recursive crashes
844 // are handled properly.
845 reset_signal_handlers();
846
847 } else {
848 // If UseOsErrorReporting we call this for each level of the call stack
849 // while searching for the exception handler. Only the first level needs
850 // to be reported.
851 if (UseOSErrorReporting && log_done) return;
852
853 // This is not the first error, see if it happened in a different thread
854 // or in the same thread during error reporting.
855 if (first_error_tid != mytid) {
856 jio_snprintf(buffer, sizeof(buffer),
857 "[thread " INT64_FORMAT " also had an error]",
858 mytid);
859 out.print_raw_cr(buffer);
860
861 // error reporting is not MT-safe, block current thread
862 os::infinite_sleep();
863
864 } else {
865 if (recursive_error_count++ > 30) {
866 out.print_raw_cr("[Too many errors, abort]");
867 os::die();
868 }
869
870 jio_snprintf(buffer, sizeof(buffer),
871 "[error occurred during error reporting %s, id 0x%x]",
872 first_error ? first_error->_current_step_info : "",
873 _id);
874 if (log.is_open()) {
875 log.cr();
876 log.print_raw_cr(buffer);
877 log.cr();
878 } else {
879 out.cr();
880 out.print_raw_cr(buffer);
881 out.cr();
882 }
883 }
884 }
885
886 // print to screen
887 if (!out_done) {
888 first_error->_verbose = false;
889
890 staticBufferStream sbs(buffer, sizeof(buffer), &out);
891 first_error->report(&sbs);
892
893 out_done = true;
894
895 first_error->_current_step = 0; // reset current_step
896 first_error->_current_step_info = ""; // reset current_step string
897 }
898
899 // print to error log file
900 if (!log_done) {
901 first_error->_verbose = true;
902
903 // see if log file is already open
904 if (!log.is_open()) {
905 // open log file
906 int fd = -1;
907
908 if (ErrorFile != NULL) {
909 bool copy_ok =
910 Arguments::copy_expand_pid(ErrorFile, strlen(ErrorFile), buffer, sizeof(buffer));
911 if (copy_ok) {
912 fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
913 }
914 }
915
916 if (fd == -1) {
917 const char *cwd = os::get_current_directory(buffer, sizeof(buffer));
918 size_t len = strlen(cwd);
919 // either user didn't specify, or the user's location failed,
920 // so use the default name in the current directory
921 jio_snprintf(&buffer[len], sizeof(buffer)-len, "%shs_err_pid%u.log",
922 os::file_separator(), os::current_process_id());
923 fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
924 }
925
926 if (fd == -1) {
927 const char * tmpdir = os::get_temp_directory();
928 // try temp directory if it exists.
929 if (tmpdir != NULL && tmpdir[0] != '\0') {
930 jio_snprintf(buffer, sizeof(buffer), "%s%shs_err_pid%u.log",
931 tmpdir, os::file_separator(), os::current_process_id());
932 fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
933 }
934 }
935
936 if (fd != -1) {
937 out.print_raw("# An error report file with more information is saved as:\n# ");
938 out.print_raw_cr(buffer);
939 os::set_error_file(buffer);
940
941 log.set_fd(fd);
942 } else {
943 out.print_raw_cr("# Can not save log file, dump to screen..");
944 log.set_fd(defaultStream::output_fd());
945 /* Error reporting currently needs dumpfile.
946 * Maybe implement direct streaming in the future.*/
947 transmit_report_done = true;
948 }
949 }
950
951 staticBufferStream sbs(buffer, O_BUFLEN, &log);
952 first_error->report(&sbs);
953 first_error->_current_step = 0; // reset current_step
954 first_error->_current_step_info = ""; // reset current_step string
955
956 // Run error reporting to determine whether or not to report the crash.
957 if (!transmit_report_done && should_report_bug(first_error->_id)) {
958 transmit_report_done = true;
959 FILE* hs_err = ::fdopen(log.fd(), "r");
960 if (NULL != hs_err) {
961 ErrorReporter er;
962 er.call(hs_err, buffer, O_BUFLEN);
963 }
964 }
965
966 if (log.fd() != defaultStream::output_fd()) {
967 close(log.fd());
968 }
969
970 log.set_fd(-1);
971 log_done = true;
972 }
973
974
975 static bool skip_OnError = false;
976 if (!skip_OnError && OnError && OnError[0]) {
977 skip_OnError = true;
978
979 out.print_raw_cr("#");
980 out.print_raw ("# -XX:OnError=\"");
981 out.print_raw (OnError);
982 out.print_raw_cr("\"");
983
984 char* cmd;
985 const char* ptr = OnError;
986 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){
987 out.print_raw ("# Executing ");
988 #if defined(LINUX) || defined(_ALLBSD_SOURCE)
989 out.print_raw ("/bin/sh -c ");
990 #elif defined(SOLARIS)
991 out.print_raw ("/usr/bin/sh -c ");
992 #endif
993 out.print_raw ("\"");
994 out.print_raw (cmd);
995 out.print_raw_cr("\" ...");
996
997 os::fork_and_exec(cmd);
998 }
999
1000 // done with OnError
1001 OnError = NULL;
1002 }
1003
1004 static bool skip_bug_url = !should_report_bug(first_error->_id);
1005 if (!skip_bug_url) {
1006 skip_bug_url = true;
1007
1008 out.print_raw_cr("#");
1009 print_bug_submit_message(&out, _thread);
1010 }
1011
1012 if (!UseOSErrorReporting) {
1013 // os::abort() will call abort hooks, try it first.
1014 static bool skip_os_abort = false;
1015 if (!skip_os_abort) {
1016 skip_os_abort = true;
1017 bool dump_core = should_report_bug(first_error->_id);
1018 os::abort(dump_core);
1019 }
1020
1021 // if os::abort() doesn't abort, try os::die();
1022 os::die();
1023 }
1024 }
1025
1026 /*
1027 * OnOutOfMemoryError scripts/commands executed while VM is a safepoint - this
1028 * ensures utilities such as jmap can observe the process is a consistent state.
1029 */
1030 class VM_ReportJavaOutOfMemory : public VM_Operation {
1031 private:
1032 VMError *_err;
1033 public:
1034 VM_ReportJavaOutOfMemory(VMError *err) { _err = err; }
1035 VMOp_Type type() const { return VMOp_ReportJavaOutOfMemory; }
1036 void doit();
1037 };
1038
1039 void VM_ReportJavaOutOfMemory::doit() {
1040 // Don't allocate large buffer on stack
1041 static char buffer[O_BUFLEN];
1042
1043 tty->print_cr("#");
1044 tty->print_cr("# java.lang.OutOfMemoryError: %s", _err->message());
1045 tty->print_cr("# -XX:OnOutOfMemoryError=\"%s\"", OnOutOfMemoryError);
1046
1047 // make heap parsability
1048 Universe::heap()->ensure_parsability(false); // no need to retire TLABs
1049
1050 char* cmd;
1051 const char* ptr = OnOutOfMemoryError;
1052 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){
1053 tty->print("# Executing ");
1054 #if defined(LINUX)
1055 tty->print ("/bin/sh -c ");
1056 #elif defined(SOLARIS)
1057 tty->print ("/usr/bin/sh -c ");
1058 #endif
1059 tty->print_cr("\"%s\"...", cmd);
1060
1061 os::fork_and_exec(cmd);
1062 }
1063 }
1064
1065 void VMError::report_java_out_of_memory() {
1066 if (OnOutOfMemoryError && OnOutOfMemoryError[0]) {
1067 MutexLocker ml(Heap_lock);
1068 VM_ReportJavaOutOfMemory op(this);
1069 VMThread::execute(&op);
1070 }
1071 }