1 /*
2 * Copyright (c) 2003, 2013, 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 "services/memTracker.hpp"
37 #include "utilities/debug.hpp"
38 #include "utilities/decoder.hpp"
39 #include "utilities/defaultStream.hpp"
40 #include "utilities/errorReporter.hpp"
41 #include "utilities/events.hpp"
42 #include "utilities/top.hpp"
43 #include "utilities/vmError.hpp"
44
45 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC
46
47 // List of environment variables that should be reported in error log file.
48 const char *env_list[] = {
49 // All platforms
50 "JAVA_HOME", "JRE_HOME", "JAVA_TOOL_OPTIONS", "_JAVA_OPTIONS", "CLASSPATH",
51 "JAVA_COMPILER", "PATH", "USERNAME",
52
53 // Env variables that are defined on Solaris/Linux/BSD
54 "LD_LIBRARY_PATH", "LD_PRELOAD", "SHELL", "DISPLAY",
55 "HOSTTYPE", "OSTYPE", "ARCH", "MACHTYPE",
56
57 // defined on Linux
58 "LD_ASSUME_KERNEL", "_JAVA_SR_SIGNUM",
59
60 // defined on Darwin
61 "DYLD_LIBRARY_PATH", "DYLD_FALLBACK_LIBRARY_PATH",
62 "DYLD_FRAMEWORK_PATH", "DYLD_FALLBACK_FRAMEWORK_PATH",
63 "DYLD_INSERT_LIBRARIES",
64
65 // defined on Windows
66 "OS", "PROCESSOR_IDENTIFIER", "_ALT_JAVA_HOME_DIR",
67
68 (const char *)0
69 };
70
71 // Fatal error handler for internal errors and crashes.
72 //
73 // The default behavior of fatal error handler is to print a brief message
74 // to standard out (defaultStream::output_fd()), then save detailed information
75 // into an error report file (hs_err_pid<pid>.log) and abort VM. If multiple
76 // threads are having troubles at the same time, only one error is reported.
77 // The thread that is reporting error will abort VM when it is done, all other
78 // threads are blocked forever inside report_and_die().
79
80 // Constructor for crashes
81 VMError::VMError(Thread* thread, unsigned int sig, address pc, void* siginfo, void* context) {
82 _thread = thread;
83 _id = sig;
84 _pc = pc;
85 _siginfo = siginfo;
86 _context = context;
87
88 _verbose = false;
89 _current_step = 0;
90 _current_step_info = NULL;
91
92 _message = NULL;
93 _detail_msg = NULL;
94 _filename = NULL;
95 _lineno = 0;
96
97 _size = 0;
98 }
99
100 // Constructor for internal errors
101 VMError::VMError(Thread* thread, const char* filename, int lineno,
102 const char* message, const char * detail_msg)
103 {
104 _thread = thread;
105 _id = INTERNAL_ERROR; // Value that's not an OS exception/signal
106 _filename = filename;
107 _lineno = lineno;
108 _message = message;
109 _detail_msg = detail_msg;
110
111 _verbose = false;
112 _current_step = 0;
113 _current_step_info = NULL;
114
115 _pc = NULL;
116 _siginfo = NULL;
117 _context = NULL;
118
119 _size = 0;
120 }
121
122 // Constructor for OOM errors
123 VMError::VMError(Thread* thread, const char* filename, int lineno, size_t size,
124 VMErrorType vm_err_type, const char* message) {
125 _thread = thread;
126 _id = vm_err_type; // Value that's not an OS exception/signal
127 _filename = filename;
128 _lineno = lineno;
129 _message = message;
130 _detail_msg = NULL;
131
132 _verbose = false;
133 _current_step = 0;
134 _current_step_info = NULL;
135
136 _pc = NULL;
137 _siginfo = NULL;
138 _context = NULL;
139
140 _size = size;
141 }
142
143
144 // Constructor for non-fatal errors
145 VMError::VMError(const char* message) {
146 _thread = NULL;
147 _id = INTERNAL_ERROR; // Value that's not an OS exception/signal
148 _filename = NULL;
149 _lineno = 0;
150 _message = message;
151 _detail_msg = NULL;
152
153 _verbose = false;
154 _current_step = 0;
155 _current_step_info = NULL;
156
157 _pc = NULL;
158 _siginfo = NULL;
159 _context = NULL;
160
161 _size = 0;
162 }
163
164 // -XX:OnError=<string>, where <string> can be a list of commands, separated
165 // by ';'. "%p" is replaced by current process id (pid); "%%" is replaced by
166 // a single "%". Some examples:
167 //
168 // -XX:OnError="pmap %p" // show memory map
169 // -XX:OnError="gcore %p; dbx - %p" // dump core and launch debugger
170 // -XX:OnError="cat hs_err_pid%p.log | mail my_email@sun.com"
171 // -XX:OnError="kill -9 %p" // ?#!@#
172
173 // A simple parser for -XX:OnError, usage:
174 // ptr = OnError;
175 // while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr) != NULL)
176 // ... ...
177 static char* next_OnError_command(char* buf, int buflen, const char** ptr) {
178 if (ptr == NULL || *ptr == NULL) return NULL;
179
180 const char* cmd = *ptr;
181
182 // skip leading blanks or ';'
183 while (*cmd == ' ' || *cmd == ';') cmd++;
184
185 if (*cmd == '\0') return NULL;
186
187 const char * cmdend = cmd;
188 while (*cmdend != '\0' && *cmdend != ';') cmdend++;
189
190 Arguments::copy_expand_pid(cmd, cmdend - cmd, buf, buflen);
191
192 *ptr = (*cmdend == '\0' ? cmdend : cmdend + 1);
193 return buf;
194 }
195
196
197 static void print_bug_submit_message(outputStream *out, Thread *thread) {
198 if (out == NULL) return;
199 out->print_raw_cr("# If you would like to submit a bug report, please visit:");
200 out->print_raw ("# ");
201 out->print_raw_cr(Arguments::java_vendor_url_bug());
202 // If the crash is in native code, encourage user to submit a bug to the
203 // provider of that code.
204 if (thread && thread->is_Java_thread() &&
205 !thread->is_hidden_from_external_view()) {
206 JavaThread* jt = (JavaThread*)thread;
207 if (jt->thread_state() == _thread_in_native) {
208 out->print_cr("# The crash happened outside the Java Virtual Machine in native code.\n# See problematic frame for where to report the bug.");
209 }
210 }
211 out->print_raw_cr("#");
212 }
213
214 bool VMError::coredump_status;
215 char VMError::coredump_message[O_BUFLEN];
216
217 void VMError::report_coredump_status(const char* message, bool status) {
218 coredump_status = status;
219 strncpy(coredump_message, message, sizeof(coredump_message));
220 coredump_message[sizeof(coredump_message)-1] = 0;
221 }
222
223
224 // Return a string to describe the error
225 char* VMError::error_string(char* buf, int buflen) {
226 char signame_buf[64];
227 const char *signame = os::exception_name(_id, signame_buf, sizeof(signame_buf));
228
229 if (signame) {
230 jio_snprintf(buf, buflen,
231 "%s (0x%x) at pc=" PTR_FORMAT ", pid=%d, tid=" UINTX_FORMAT,
232 signame, _id, _pc,
233 os::current_process_id(), os::current_thread_id());
234 } else if (_filename != NULL && _lineno > 0) {
235 // skip directory names
236 char separator = os::file_separator()[0];
237 const char *p = strrchr(_filename, separator);
238 int n = jio_snprintf(buf, buflen,
239 "Internal Error at %s:%d, pid=%d, tid=" UINTX_FORMAT,
240 p ? p + 1 : _filename, _lineno,
241 os::current_process_id(), os::current_thread_id());
242 if (n >= 0 && n < buflen && _message) {
243 if (_detail_msg) {
244 jio_snprintf(buf + n, buflen - n, "%s%s: %s",
245 os::line_separator(), _message, _detail_msg);
246 } else {
247 jio_snprintf(buf + n, buflen - n, "%sError: %s",
248 os::line_separator(), _message);
249 }
250 }
251 } else {
252 jio_snprintf(buf, buflen,
253 "Internal Error (0x%x), pid=%d, tid=" UINTX_FORMAT,
254 _id, os::current_process_id(), os::current_thread_id());
255 }
256
257 return buf;
258 }
259
260 void VMError::print_stack_trace(outputStream* st, JavaThread* jt,
261 char* buf, int buflen, bool verbose) {
262 #ifdef ZERO
263 if (jt->zero_stack()->sp() && jt->top_zero_frame()) {
264 // StackFrameStream uses the frame anchor, which may not have
265 // been set up. This can be done at any time in Zero, however,
266 // so if it hasn't been set up then we just set it up now and
267 // clear it again when we're done.
268 bool has_last_Java_frame = jt->has_last_Java_frame();
269 if (!has_last_Java_frame)
270 jt->set_last_Java_frame();
271 st->print("Java frames:");
272
273 // If the top frame is a Shark frame and the frame anchor isn't
274 // set up then it's possible that the information in the frame
275 // is garbage: it could be from a previous decache, or it could
276 // simply have never been written. So we print a warning...
277 StackFrameStream sfs(jt);
278 if (!has_last_Java_frame && !sfs.is_done()) {
279 if (sfs.current()->zeroframe()->is_shark_frame()) {
280 st->print(" (TOP FRAME MAY BE JUNK)");
281 }
282 }
283 st->cr();
284
285 // Print the frames
286 for(int i = 0; !sfs.is_done(); sfs.next(), i++) {
287 sfs.current()->zero_print_on_error(i, st, buf, buflen);
288 st->cr();
289 }
290
291 // Reset the frame anchor if necessary
292 if (!has_last_Java_frame)
293 jt->reset_last_Java_frame();
294 }
295 #else
296 if (jt->has_last_Java_frame()) {
297 st->print_cr("Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)");
298 for(StackFrameStream sfs(jt); !sfs.is_done(); sfs.next()) {
299 sfs.current()->print_on_error(st, buf, buflen, verbose);
300 st->cr();
301 }
302 }
303 #endif // ZERO
304 }
305
306 // This is the main function to report a fatal error. Only one thread can
307 // call this function, so we don't need to worry about MT-safety. But it's
308 // possible that the error handler itself may crash or die on an internal
309 // error, for example, when the stack/heap is badly damaged. We must be
310 // able to handle recursive errors that happen inside error handler.
311 //
312 // Error reporting is done in several steps. If a crash or internal error
313 // occurred when reporting an error, the nested signal/exception handler
314 // can skip steps that are already (or partially) done. Error reporting will
315 // continue from the next step. This allows us to retrieve and print
316 // information that may be unsafe to get after a fatal error. If it happens,
317 // you may find nested report_and_die() frames when you look at the stack
318 // in a debugger.
319 //
320 // In general, a hang in error handler is much worse than a crash or internal
321 // error, as it's harder to recover from a hang. Deadlock can happen if we
322 // try to grab a lock that is already owned by current thread, or if the
323 // owner is blocked forever (e.g. in os::infinite_sleep()). If possible, the
324 // error handler and all the functions it called should avoid grabbing any
325 // lock. An important thing to notice is that memory allocation needs a lock.
326 //
327 // We should avoid using large stack allocated buffers. Many errors happen
328 // when stack space is already low. Making things even worse is that there
329 // could be nested report_and_die() calls on stack (see above). Only one
330 // thread can report error, so large buffers are statically allocated in data
331 // segment.
332
333 void VMError::report(outputStream* st) {
334 # define BEGIN if (_current_step == 0) { _current_step = 1;
335 # define STEP(n, s) } if (_current_step < n) { _current_step = n; _current_step_info = s;
336 # define END }
337
338 // don't allocate large buffer on stack
339 static char buf[O_BUFLEN];
340
341 BEGIN
342
343 STEP(10, "(printing fatal error message)")
344
345 st->print_cr("#");
346 if (should_report_bug(_id)) {
347 st->print_cr("# A fatal error has been detected by the Java Runtime Environment:");
348 } else {
349 st->print_cr("# There is insufficient memory for the Java "
350 "Runtime Environment to continue.");
351 }
352
353 STEP(15, "(printing type of error)")
354
355 switch(_id) {
356 case OOM_MALLOC_ERROR:
357 case OOM_MMAP_ERROR:
358 if (_size) {
359 st->print("# Native memory allocation ");
360 st->print((_id == (int)OOM_MALLOC_ERROR) ? "(malloc) failed to allocate " :
361 "(mmap) failed to map ");
362 jio_snprintf(buf, sizeof(buf), SIZE_FORMAT, _size);
363 st->print_raw(buf);
364 st->print(" bytes");
365 if (_message != NULL) {
366 st->print(" for ");
367 st->print_raw(_message);
368 }
369 st->cr();
370 } else {
371 if (_message != NULL)
372 st->print("# ");
373 st->print_raw_cr(_message);
374 }
375 // In error file give some solutions
376 if (_verbose) {
377 st->print_cr("# Possible reasons:");
378 st->print_cr("# The system is out of physical RAM or swap space");
379 st->print_cr("# In 32 bit mode, the process size limit was hit");
380 st->print_cr("# Possible solutions:");
381 st->print_cr("# Reduce memory load on the system");
382 st->print_cr("# Increase physical memory or swap space");
383 st->print_cr("# Check if swap backing store is full");
384 st->print_cr("# Use 64 bit Java on a 64 bit OS");
385 st->print_cr("# Decrease Java heap size (-Xmx/-Xms)");
386 st->print_cr("# Decrease number of Java threads");
387 st->print_cr("# Decrease Java thread stack sizes (-Xss)");
388 st->print_cr("# Set larger code cache with -XX:ReservedCodeCacheSize=");
389 st->print_cr("# This output file may be truncated or incomplete.");
390 } else {
391 return; // that's enough for the screen
392 }
393 break;
394 case INTERNAL_ERROR:
395 default:
396 break;
397 }
398
399 STEP(20, "(printing exception/signal name)")
400
401 st->print_cr("#");
402 st->print("# ");
403 // Is it an OS exception/signal?
404 if (os::exception_name(_id, buf, sizeof(buf))) {
405 st->print("%s", buf);
406 st->print(" (0x%x)", _id); // signal number
407 st->print(" at pc=" PTR_FORMAT, _pc);
408 } else {
409 if (should_report_bug(_id)) {
410 st->print("Internal Error");
411 } else {
412 st->print("Out of Memory Error");
413 }
414 if (_filename != NULL && _lineno > 0) {
415 #ifdef PRODUCT
416 // In product mode chop off pathname?
417 char separator = os::file_separator()[0];
418 const char *p = strrchr(_filename, separator);
419 const char *file = p ? p+1 : _filename;
420 #else
421 const char *file = _filename;
422 #endif
423 size_t len = strlen(file);
424 size_t buflen = sizeof(buf);
425
426 strncpy(buf, file, buflen);
427 if (len + 10 < buflen) {
428 sprintf(buf + len, ":%d", _lineno);
429 }
430 st->print(" (%s)", buf);
431 } else {
432 st->print(" (0x%x)", _id);
433 }
434 }
435
436 STEP(30, "(printing current thread and pid)")
437
438 // process id, thread id
439 st->print(", pid=%d", os::current_process_id());
440 st->print(", tid=" UINTX_FORMAT, os::current_thread_id());
441 st->cr();
442
443 STEP(40, "(printing error message)")
444
445 if (should_report_bug(_id)) { // already printed the message.
446 // error message
447 if (_detail_msg) {
448 st->print_cr("# %s: %s", _message ? _message : "Error", _detail_msg);
449 } else if (_message) {
450 st->print_cr("# Error: %s", _message);
451 }
452 }
453
454 STEP(50, "(printing Java version string)")
455
456 // VM version
457 st->print_cr("#");
458 JDK_Version::current().to_string(buf, sizeof(buf));
459 const char* runtime_name = JDK_Version::runtime_name() != NULL ?
460 JDK_Version::runtime_name() : "";
461 const char* runtime_version = JDK_Version::runtime_version() != NULL ?
462 JDK_Version::runtime_version() : "";
463 st->print_cr("# JRE version: %s (%s) (build %s)", runtime_name, buf, runtime_version);
464 st->print_cr("# Java VM: %s (%s %s %s %s)",
465 Abstract_VM_Version::vm_name(),
466 Abstract_VM_Version::vm_release(),
467 Abstract_VM_Version::vm_info_string(),
468 Abstract_VM_Version::vm_platform_string(),
469 UseCompressedOops ? "compressed oops" : ""
470 );
471
472 STEP(60, "(printing problematic frame)")
473
474 // Print current frame if we have a context (i.e. it's a crash)
475 if (_context) {
476 st->print_cr("# Problematic frame:");
477 st->print("# ");
478 frame fr = os::fetch_frame_from_context(_context);
479 fr.print_on_error(st, buf, sizeof(buf));
480 st->cr();
481 st->print_cr("#");
482 }
483 STEP(63, "(printing core file information)")
484 st->print("# ");
485 if (coredump_status) {
486 st->print("Core dump written. Default location: %s", coredump_message);
487 } else {
488 st->print("Failed to write core dump. %s", coredump_message);
489 }
490 st->cr();
491 st->print_cr("#");
492
493 STEP(65, "(printing bug submit message)")
494
495 if (should_report_bug(_id) && _verbose) {
496 print_bug_submit_message(st, _thread);
497 }
498
499 STEP(70, "(printing thread)" )
500
501 if (_verbose) {
502 st->cr();
503 st->print_cr("--------------- T H R E A D ---------------");
504 st->cr();
505 }
506
507 STEP(80, "(printing current thread)" )
508
509 // current thread
510 if (_verbose) {
511 if (_thread) {
512 st->print("Current thread (" PTR_FORMAT "): ", _thread);
513 _thread->print_on_error(st, buf, sizeof(buf));
514 st->cr();
515 } else {
516 st->print_cr("Current thread is native thread");
517 }
518 st->cr();
519 }
520
521 STEP(90, "(printing siginfo)" )
522
523 // signal no, signal code, address that caused the fault
524 if (_verbose && _siginfo) {
525 os::print_siginfo(st, _siginfo);
526 st->cr();
527 }
528
529 STEP(100, "(printing registers, top of stack, instructions near pc)")
530
531 // registers, top of stack, instructions near pc
532 if (_verbose && _context) {
533 os::print_context(st, _context);
534 st->cr();
535 }
536
537 STEP(105, "(printing register info)")
538
539 // decode register contents if possible
540 if (_verbose && _context && Universe::is_fully_initialized()) {
541 os::print_register_info(st, _context);
542 st->cr();
543 }
544
545 STEP(110, "(printing stack bounds)" )
546
547 if (_verbose) {
548 st->print("Stack: ");
549
550 address stack_top;
551 size_t stack_size;
552
553 if (_thread) {
554 stack_top = _thread->stack_base();
555 stack_size = _thread->stack_size();
556 } else {
557 stack_top = os::current_stack_base();
558 stack_size = os::current_stack_size();
559 }
560
561 address stack_bottom = stack_top - stack_size;
562 st->print("[" PTR_FORMAT "," PTR_FORMAT "]", stack_bottom, stack_top);
563
564 frame fr = _context ? os::fetch_frame_from_context(_context)
565 : os::current_frame();
566
567 if (fr.sp()) {
568 st->print(", sp=" PTR_FORMAT, fr.sp());
569 size_t free_stack_size = pointer_delta(fr.sp(), stack_bottom, 1024);
570 st->print(", free space=" SIZE_FORMAT "k", free_stack_size);
571 }
572
573 st->cr();
574 }
575
576 STEP(120, "(printing native stack)" )
577
578 if (_verbose) {
579 if (os::platform_print_native_stack(st, _context, buf, sizeof(buf))) {
580 // We have printed the native stack in platform-specific code
581 // Windows/x64 needs special handling.
582 } else {
583 frame fr = _context ? os::fetch_frame_from_context(_context)
584 : os::current_frame();
585
586 // see if it's a valid frame
587 if (fr.pc()) {
588 st->print_cr("Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)");
589
590
591 int count = 0;
592 while (count++ < StackPrintLimit) {
593 fr.print_on_error(st, buf, sizeof(buf));
594 st->cr();
595 // Compiled code may use EBP register on x86 so it looks like
596 // non-walkable C frame. Use frame.sender() for java frames.
597 if (_thread && _thread->is_Java_thread()) {
598 // Catch very first native frame by using stack address.
599 // For JavaThread stack_base and stack_size should be set.
600 if (!_thread->on_local_stack((address)(fr.sender_sp() + 1))) {
601 break;
602 }
603 if (fr.is_java_frame()) {
604 RegisterMap map((JavaThread*)_thread, false); // No update
605 fr = fr.sender(&map);
606 } else {
607 fr = os::get_sender_for_C_frame(&fr);
608 }
609 } else {
610 // is_first_C_frame() does only simple checks for frame pointer,
611 // it will pass if java compiled code has a pointer in EBP.
612 if (os::is_first_C_frame(&fr)) break;
613 fr = os::get_sender_for_C_frame(&fr);
614 }
615 }
616
617 if (count > StackPrintLimit) {
618 st->print_cr("...<more frames>...");
619 }
620
621 st->cr();
622 }
623 }
624 }
625
626 STEP(130, "(printing Java stack)" )
627
628 if (_verbose && _thread && _thread->is_Java_thread()) {
629 print_stack_trace(st, (JavaThread*)_thread, buf, sizeof(buf));
630 }
631
632 STEP(135, "(printing target Java thread stack)" )
633
634 // printing Java thread stack trace if it is involved in GC crash
635 if (_verbose && _thread && (_thread->is_Named_thread())) {
636 JavaThread* jt = ((NamedThread *)_thread)->processed_thread();
637 if (jt != NULL) {
638 st->print_cr("JavaThread " PTR_FORMAT " (nid = " UINTX_FORMAT ") was being processed", jt, jt->osthread()->thread_id());
639 print_stack_trace(st, jt, buf, sizeof(buf), true);
640 }
641 }
642
643 STEP(140, "(printing VM operation)" )
644
645 if (_verbose && _thread && _thread->is_VM_thread()) {
646 VMThread* t = (VMThread*)_thread;
647 VM_Operation* op = t->vm_operation();
648 if (op) {
649 op->print_on_error(st);
650 st->cr();
651 st->cr();
652 }
653 }
654
655 STEP(150, "(printing current compile task)" )
656
657 if (_verbose && _thread && _thread->is_Compiler_thread()) {
658 CompilerThread* t = (CompilerThread*)_thread;
659 if (t->task()) {
660 st->cr();
661 st->print_cr("Current CompileTask:");
662 t->task()->print_line_on_error(st, buf, sizeof(buf));
663 st->cr();
664 }
665 }
666
667 STEP(160, "(printing process)" )
668
669 if (_verbose) {
670 st->cr();
671 st->print_cr("--------------- P R O C E S S ---------------");
672 st->cr();
673 }
674
675 STEP(170, "(printing all threads)" )
676
677 // all threads
678 if (_verbose && _thread) {
679 Threads::print_on_error(st, _thread, buf, sizeof(buf));
680 st->cr();
681 }
682
683 STEP(175, "(printing VM state)" )
684
685 if (_verbose) {
686 // Safepoint state
687 st->print("VM state:");
688
689 if (SafepointSynchronize::is_synchronizing()) st->print("synchronizing");
690 else if (SafepointSynchronize::is_at_safepoint()) st->print("at safepoint");
691 else st->print("not at safepoint");
692
693 // Also see if error occurred during initialization or shutdown
694 if (!Universe::is_fully_initialized()) {
695 st->print(" (not fully initialized)");
696 } else if (VM_Exit::vm_exited()) {
697 st->print(" (shutting down)");
698 } else {
699 st->print(" (normal execution)");
700 }
701 st->cr();
702 st->cr();
703 }
704
705 STEP(180, "(printing owned locks on error)" )
706
707 // mutexes/monitors that currently have an owner
708 if (_verbose) {
709 print_owned_locks_on_error(st);
710 st->cr();
711 }
712
713 STEP(190, "(printing heap information)" )
714
715 if (_verbose && Universe::is_fully_initialized()) {
716 Universe::heap()->print_on_error(st);
717 st->cr();
718
719 st->print_cr("Polling page: " INTPTR_FORMAT, os::get_polling_page());
720 st->cr();
721 }
722
723 STEP(195, "(printing code cache information)" )
724
725 if (_verbose && Universe::is_fully_initialized()) {
726 // print code cache information before vm abort
727 CodeCache::print_summary(st);
728 st->cr();
729 }
730
731 STEP(200, "(printing ring buffers)" )
732
733 if (_verbose) {
734 Events::print_all(st);
735 st->cr();
736 }
737
738 STEP(205, "(printing dynamic libraries)" )
739
740 if (_verbose) {
741 // dynamic libraries, or memory map
742 os::print_dll_info(st);
743 st->cr();
744 }
745
746 STEP(210, "(printing VM options)" )
747
748 if (_verbose) {
749 // VM options
750 Arguments::print_on(st);
751 st->cr();
752 }
753
754 STEP(215, "(printing warning if internal testing API used)" )
755
756 if (WhiteBox::used()) {
757 st->print_cr("Unsupported internal testing APIs have been used.");
758 st->cr();
759 }
760
761 STEP(220, "(printing environment variables)" )
762
763 if (_verbose) {
764 os::print_environment_variables(st, env_list, buf, sizeof(buf));
765 st->cr();
766 }
767
768 STEP(225, "(printing signal handlers)" )
769
770 if (_verbose) {
771 os::print_signal_handlers(st, buf, sizeof(buf));
772 st->cr();
773 }
774
775 STEP(230, "" )
776
777 if (_verbose) {
778 st->cr();
779 st->print_cr("--------------- S Y S T E M ---------------");
780 st->cr();
781 }
782
783 STEP(240, "(printing OS information)" )
784
785 if (_verbose) {
786 os::print_os_info(st);
787 st->cr();
788 }
789
790 STEP(250, "(printing CPU info)" )
791 if (_verbose) {
792 os::print_cpu_info(st);
793 st->cr();
794 }
795
796 STEP(260, "(printing memory info)" )
797
798 if (_verbose) {
799 os::print_memory_info(st);
800 st->cr();
801 }
802
803 STEP(270, "(printing internal vm info)" )
804
805 if (_verbose) {
806 st->print_cr("vm_info: %s", Abstract_VM_Version::internal_vm_info_string());
807 st->cr();
808 }
809
810 STEP(280, "(printing date and time)" )
811
812 if (_verbose) {
813 os::print_date_and_time(st);
814 st->cr();
815 }
816
817 END
818
819 # undef BEGIN
820 # undef STEP
821 # undef END
822 }
823
824 VMError* volatile VMError::first_error = NULL;
825 volatile jlong VMError::first_error_tid = -1;
826
827 // An error could happen before tty is initialized or after it has been
828 // destroyed. Here we use a very simple unbuffered fdStream for printing.
829 // Only out.print_raw() and out.print_raw_cr() should be used, as other
830 // printing methods need to allocate large buffer on stack. To format a
831 // string, use jio_snprintf() with a static buffer or use staticBufferStream.
832 fdStream VMError::out(defaultStream::output_fd());
833 fdStream VMError::log; // error log used by VMError::report_and_die()
834
835 /** Expand a pattern into a buffer starting at pos and open a file using constructed path */
836 static int expand_and_open(const char* pattern, char* buf, size_t buflen, size_t pos) {
837 int fd = -1;
838 if (Arguments::copy_expand_pid(pattern, strlen(pattern), &buf[pos], buflen - pos)) {
839 fd = open(buf, O_RDWR | O_CREAT | O_TRUNC, 0666);
840 }
841 return fd;
842 }
843
844 /**
845 * Construct file name for a log file and return it's file descriptor.
846 * Name and location depends on pattern, default_pattern params and access
847 * permissions.
848 */
849 static int prepare_log_file(const char* pattern, const char* default_pattern, char* buf, size_t buflen) {
850 int fd = -1;
851
852 // If possible, use specified pattern to construct log file name
853 if (pattern != NULL) {
854 fd = expand_and_open(pattern, buf, buflen, 0);
855 }
856
857 // Either user didn't specify, or the user's location failed,
858 // so use the default name in the current directory
859 if (fd == -1) {
860 const char* cwd = os::get_current_directory(buf, buflen);
861 if (cwd != NULL) {
862 size_t pos = strlen(cwd);
863 int fsep_len = jio_snprintf(&buf[pos], buflen-pos, "%s", os::file_separator());
864 pos += fsep_len;
865 if (fsep_len > 0) {
866 fd = expand_and_open(default_pattern, buf, buflen, pos);
867 }
868 }
869 }
870
871 // try temp directory if it exists.
872 if (fd == -1) {
873 const char* tmpdir = os::get_temp_directory();
874 if (tmpdir != NULL && strlen(tmpdir) > 0) {
875 int pos = jio_snprintf(buf, buflen, "%s%s", tmpdir, os::file_separator());
876 if (pos > 0) {
877 fd = expand_and_open(default_pattern, buf, buflen, pos);
878 }
879 }
880 }
881
882 return fd;
883 }
884
885 void VMError::report_and_die() {
886 // Don't allocate large buffer on stack
887 static char buffer[O_BUFLEN];
888
889 // How many errors occurred in error handler when reporting first_error.
890 static int recursive_error_count;
891
892 // We will first print a brief message to standard out (verbose = false),
893 // then save detailed information in log file (verbose = true).
894 static bool out_done = false; // done printing to standard out
895 static bool log_done = false; // done saving error log
896 static bool transmit_report_done = false; // done error reporting
897
898 // disble NMT to avoid further exception
899 MemTracker::shutdown(MemTracker::NMT_error_reporting);
900
901 if (SuppressFatalErrorMessage) {
902 os::abort();
903 }
904 jlong mytid = os::current_thread_id();
905 if (first_error == NULL &&
906 Atomic::cmpxchg_ptr(this, &first_error, NULL) == NULL) {
907
908 // first time
909 first_error_tid = mytid;
910 set_error_reported();
911
912 if (ShowMessageBoxOnError || PauseAtExit) {
913 show_message_box(buffer, sizeof(buffer));
914
915 // User has asked JVM to abort. Reset ShowMessageBoxOnError so the
916 // WatcherThread can kill JVM if the error handler hangs.
917 ShowMessageBoxOnError = false;
918 }
919
920 // Write a minidump on Windows, check core dump limits on Linux/Solaris
921 os::check_or_create_dump(_siginfo, _context, buffer, sizeof(buffer));
922
923 // reset signal handlers or exception filter; make sure recursive crashes
924 // are handled properly.
925 reset_signal_handlers();
926
927 } else {
928 // If UseOsErrorReporting we call this for each level of the call stack
929 // while searching for the exception handler. Only the first level needs
930 // to be reported.
931 if (UseOSErrorReporting && log_done) return;
932
933 // This is not the first error, see if it happened in a different thread
934 // or in the same thread during error reporting.
935 if (first_error_tid != mytid) {
936 char msgbuf[64];
937 jio_snprintf(msgbuf, sizeof(msgbuf),
938 "[thread " INT64_FORMAT " also had an error]",
939 mytid);
940 out.print_raw_cr(msgbuf);
941
942 // error reporting is not MT-safe, block current thread
943 os::infinite_sleep();
944
945 } else {
946 if (recursive_error_count++ > 30) {
947 out.print_raw_cr("[Too many errors, abort]");
948 os::die();
949 }
950
951 jio_snprintf(buffer, sizeof(buffer),
952 "[error occurred during error reporting %s, id 0x%x]",
953 first_error ? first_error->_current_step_info : "",
954 _id);
955 if (log.is_open()) {
956 log.cr();
957 log.print_raw_cr(buffer);
958 log.cr();
959 } else {
960 out.cr();
961 out.print_raw_cr(buffer);
962 out.cr();
963 }
964 }
965 }
966
967 // print to screen
968 if (!out_done) {
969 first_error->_verbose = false;
970
971 staticBufferStream sbs(buffer, sizeof(buffer), &out);
972 first_error->report(&sbs);
973
974 out_done = true;
975
976 first_error->_current_step = 0; // reset current_step
977 first_error->_current_step_info = ""; // reset current_step string
978 }
979
980 // print to error log file
981 if (!log_done) {
982 first_error->_verbose = true;
983
984 // see if log file is already open
985 if (!log.is_open()) {
986 // open log file
987 int fd = prepare_log_file(ErrorFile, "hs_err_pid%p.log", buffer, sizeof(buffer));
988 if (fd != -1) {
989 out.print_raw("# An error report file with more information is saved as:\n# ");
990 out.print_raw_cr(buffer);
991 os::set_error_file(buffer);
992
993 log.set_fd(fd);
994 } else {
995 out.print_raw_cr("# Can not save log file, dump to screen..");
996 log.set_fd(defaultStream::output_fd());
997 /* Error reporting currently needs dumpfile.
998 * Maybe implement direct streaming in the future.*/
999 transmit_report_done = true;
1000 }
1001 }
1002
1003 staticBufferStream sbs(buffer, O_BUFLEN, &log);
1004 first_error->report(&sbs);
1005 first_error->_current_step = 0; // reset current_step
1006 first_error->_current_step_info = ""; // reset current_step string
1007
1008 // Run error reporting to determine whether or not to report the crash.
1009 if (!transmit_report_done && should_report_bug(first_error->_id)) {
1010 transmit_report_done = true;
1011 FILE* hs_err = os::open(log.fd(), "r");
1012 if (NULL != hs_err) {
1013 ErrorReporter er;
1014 er.call(hs_err, buffer, O_BUFLEN);
1015 }
1016 }
1017
1018 if (log.fd() != defaultStream::output_fd()) {
1019 close(log.fd());
1020 }
1021
1022 log.set_fd(-1);
1023 log_done = true;
1024 }
1025
1026
1027 static bool skip_OnError = false;
1028 if (!skip_OnError && OnError && OnError[0]) {
1029 skip_OnError = true;
1030
1031 out.print_raw_cr("#");
1032 out.print_raw ("# -XX:OnError=\"");
1033 out.print_raw (OnError);
1034 out.print_raw_cr("\"");
1035
1036 char* cmd;
1037 const char* ptr = OnError;
1038 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){
1039 out.print_raw ("# Executing ");
1040 #if defined(LINUX) || defined(_ALLBSD_SOURCE)
1041 out.print_raw ("/bin/sh -c ");
1042 #elif defined(SOLARIS)
1043 out.print_raw ("/usr/bin/sh -c ");
1044 #endif
1045 out.print_raw ("\"");
1046 out.print_raw (cmd);
1047 out.print_raw_cr("\" ...");
1048
1049 os::fork_and_exec(cmd);
1050 }
1051
1052 // done with OnError
1053 OnError = NULL;
1054 }
1055
1056 static bool skip_replay = ReplayCompiles; // Do not overwrite file during replay
1057 if (DumpReplayDataOnError && _thread && _thread->is_Compiler_thread() && !skip_replay) {
1058 skip_replay = true;
1059 ciEnv* env = ciEnv::current();
1060 if (env != NULL) {
1061 int fd = prepare_log_file(ReplayDataFile, "replay_pid%p.log", buffer, sizeof(buffer));
1062 if (fd != -1) {
1063 FILE* replay_data_file = os::open(fd, "w");
1064 if (replay_data_file != NULL) {
1065 fileStream replay_data_stream(replay_data_file, /*need_close=*/true);
1066 env->dump_replay_data_unsafe(&replay_data_stream);
1067 out.print_raw("#\n# Compiler replay data is saved as:\n# ");
1068 out.print_raw_cr(buffer);
1069 } else {
1070 out.print_raw("#\n# Can't open file to dump replay data. Error: ");
1071 out.print_raw_cr(strerror(os::get_last_error()));
1072 }
1073 }
1074 }
1075 }
1076
1077 static bool skip_bug_url = !should_report_bug(first_error->_id);
1078 if (!skip_bug_url) {
1079 skip_bug_url = true;
1080
1081 out.print_raw_cr("#");
1082 print_bug_submit_message(&out, _thread);
1083 }
1084
1085 if (!UseOSErrorReporting) {
1086 // os::abort() will call abort hooks, try it first.
1087 static bool skip_os_abort = false;
1088 if (!skip_os_abort) {
1089 skip_os_abort = true;
1090 bool dump_core = should_report_bug(first_error->_id);
1091 os::abort(dump_core);
1092 }
1093
1094 // if os::abort() doesn't abort, try os::die();
1095 os::die();
1096 }
1097 }
1098
1099 /*
1100 * OnOutOfMemoryError scripts/commands executed while VM is a safepoint - this
1101 * ensures utilities such as jmap can observe the process is a consistent state.
1102 */
1103 class VM_ReportJavaOutOfMemory : public VM_Operation {
1104 private:
1105 VMError *_err;
1106 public:
1107 VM_ReportJavaOutOfMemory(VMError *err) { _err = err; }
1108 VMOp_Type type() const { return VMOp_ReportJavaOutOfMemory; }
1109 void doit();
1110 };
1111
1112 void VM_ReportJavaOutOfMemory::doit() {
1113 // Don't allocate large buffer on stack
1114 static char buffer[O_BUFLEN];
1115
1116 tty->print_cr("#");
1117 tty->print_cr("# java.lang.OutOfMemoryError: %s", _err->message());
1118 tty->print_cr("# -XX:OnOutOfMemoryError=\"%s\"", OnOutOfMemoryError);
1119
1120 // make heap parsability
1121 Universe::heap()->ensure_parsability(false); // no need to retire TLABs
1122
1123 char* cmd;
1124 const char* ptr = OnOutOfMemoryError;
1125 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){
1126 tty->print("# Executing ");
1127 #if defined(LINUX)
1128 tty->print ("/bin/sh -c ");
1129 #elif defined(SOLARIS)
1130 tty->print ("/usr/bin/sh -c ");
1131 #endif
1132 tty->print_cr("\"%s\"...", cmd);
1133
1134 os::fork_and_exec(cmd);
1135 }
1136 }
1137
1138 void VMError::report_java_out_of_memory() {
1139 if (OnOutOfMemoryError && OnOutOfMemoryError[0]) {
1140 MutexLocker ml(Heap_lock);
1141 VM_ReportJavaOutOfMemory op(this);
1142 VMThread::execute(&op);
1143 }
1144 }