Mercurial > hg > graal-compiler
annotate src/share/vm/utilities/vmError.cpp @ 56:31d829b33f26
6549844: Wording problems in "An unexpected error ..."
Summary: Changed wording to "A fatal error.." also don't claim it's not VM bug if in hotspot compilers (Java thread in native).
Reviewed-by: jjh, sbohne, jrose, never
author | coleenp |
---|---|
date | Wed, 27 Feb 2008 13:55:58 -0500 |
parents | a61af66fc99e |
children | ba764ed4b6f2 |
rev | line source |
---|---|
0 | 1 /* |
2 * Copyright 2003-2007 Sun Microsystems, Inc. All Rights Reserved. | |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 # include "incls/_precompiled.incl" | |
26 # include "incls/_vmError.cpp.incl" | |
27 | |
28 // List of environment variables that should be reported in error log file. | |
29 const char *env_list[] = { | |
30 // All platforms | |
31 "JAVA_HOME", "JRE_HOME", "JAVA_TOOL_OPTIONS", "_JAVA_OPTIONS", "CLASSPATH", | |
32 "JAVA_COMPILER", "PATH", "USERNAME", | |
33 | |
34 // Env variables that are defined on Solaris/Linux | |
35 "LD_LIBRARY_PATH", "LD_PRELOAD", "SHELL", "DISPLAY", | |
36 "HOSTTYPE", "OSTYPE", "ARCH", "MACHTYPE", | |
37 | |
38 // defined on Linux | |
39 "LD_ASSUME_KERNEL", "_JAVA_SR_SIGNUM", | |
40 | |
41 // defined on Windows | |
42 "OS", "PROCESSOR_IDENTIFIER", "_ALT_JAVA_HOME_DIR", | |
43 | |
44 (const char *)0 | |
45 }; | |
46 | |
47 // Fatal error handler for internal errors and crashes. | |
48 // | |
49 // The default behavior of fatal error handler is to print a brief message | |
50 // to standard out (defaultStream::output_fd()), then save detailed information | |
51 // into an error report file (hs_err_pid<pid>.log) and abort VM. If multiple | |
52 // threads are having troubles at the same time, only one error is reported. | |
53 // The thread that is reporting error will abort VM when it is done, all other | |
54 // threads are blocked forever inside report_and_die(). | |
55 | |
56 // Constructor for crashes | |
57 VMError::VMError(Thread* thread, int sig, address pc, void* siginfo, void* context) { | |
58 _thread = thread; | |
59 _id = sig; | |
60 _pc = pc; | |
61 _siginfo = siginfo; | |
62 _context = context; | |
63 | |
64 _verbose = false; | |
65 _current_step = 0; | |
66 _current_step_info = NULL; | |
67 | |
68 _message = ""; | |
69 _filename = NULL; | |
70 _lineno = 0; | |
71 | |
72 _size = 0; | |
73 } | |
74 | |
75 // Constructor for internal errors | |
76 VMError::VMError(Thread* thread, const char* message, const char* filename, int lineno) { | |
77 _thread = thread; | |
78 _id = internal_error; // set it to a value that's not an OS exception/signal | |
79 _filename = filename; | |
80 _lineno = lineno; | |
81 _message = message; | |
82 | |
83 _verbose = false; | |
84 _current_step = 0; | |
85 _current_step_info = NULL; | |
86 | |
87 _pc = NULL; | |
88 _siginfo = NULL; | |
89 _context = NULL; | |
90 | |
91 _size = 0; | |
92 } | |
93 | |
94 // Constructor for OOM errors | |
95 VMError::VMError(Thread* thread, size_t size, const char* message, const char* filename, int lineno) { | |
96 _thread = thread; | |
97 _id = oom_error; // set it to a value that's not an OS exception/signal | |
98 _filename = filename; | |
99 _lineno = lineno; | |
100 _message = message; | |
101 | |
102 _verbose = false; | |
103 _current_step = 0; | |
104 _current_step_info = NULL; | |
105 | |
106 _pc = NULL; | |
107 _siginfo = NULL; | |
108 _context = NULL; | |
109 | |
110 _size = size; | |
111 } | |
112 | |
113 | |
114 // Constructor for non-fatal errors | |
115 VMError::VMError(const char* message) { | |
116 _thread = NULL; | |
117 _id = internal_error; // set it to a value that's not an OS exception/signal | |
118 _filename = NULL; | |
119 _lineno = 0; | |
120 _message = message; | |
121 | |
122 _verbose = false; | |
123 _current_step = 0; | |
124 _current_step_info = NULL; | |
125 | |
126 _pc = NULL; | |
127 _siginfo = NULL; | |
128 _context = NULL; | |
129 | |
130 _size = 0; | |
131 } | |
132 | |
133 // -XX:OnError=<string>, where <string> can be a list of commands, separated | |
134 // by ';'. "%p" is replaced by current process id (pid); "%%" is replaced by | |
135 // a single "%". Some examples: | |
136 // | |
137 // -XX:OnError="pmap %p" // show memory map | |
138 // -XX:OnError="gcore %p; dbx - %p" // dump core and launch debugger | |
139 // -XX:OnError="cat hs_err_pid%p.log | mail my_email@sun.com" | |
140 // -XX:OnError="kill -9 %p" // ?#!@# | |
141 | |
142 // A simple parser for -XX:OnError, usage: | |
143 // ptr = OnError; | |
144 // while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr) != NULL) | |
145 // ... ... | |
146 static char* next_OnError_command(char* buf, int buflen, const char** ptr) { | |
147 if (ptr == NULL || *ptr == NULL) return NULL; | |
148 | |
149 const char* cmd = *ptr; | |
150 | |
151 // skip leading blanks or ';' | |
152 while (*cmd == ' ' || *cmd == ';') cmd++; | |
153 | |
154 if (*cmd == '\0') return NULL; | |
155 | |
156 const char * cmdend = cmd; | |
157 while (*cmdend != '\0' && *cmdend != ';') cmdend++; | |
158 | |
159 Arguments::copy_expand_pid(cmd, cmdend - cmd, buf, buflen); | |
160 | |
161 *ptr = (*cmdend == '\0' ? cmdend : cmdend + 1); | |
162 return buf; | |
163 } | |
164 | |
165 | |
166 static void print_bug_submit_message(outputStream *out, Thread *thread) { | |
167 if (out == NULL) return; | |
168 out->print_raw_cr("# If you would like to submit a bug report, please visit:"); | |
169 out->print_raw ("# "); | |
170 out->print_raw_cr(Arguments::java_vendor_url_bug()); | |
171 // If the crash is in native code, encourage user to submit a bug to the | |
172 // provider of that code. | |
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173 if (thread && thread->is_Java_thread() && |
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174 !thread->is_hidden_from_external_view()) { |
0 | 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 | |
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253 STEP(10, "(printing fatal error message)") |
0 | 254 |
255 st->print_cr("#"); | |
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256 st->print_cr("# A fatal error has been detected by the Java Runtime Environment:"); |
0 | 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,"%d",_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, ":" SIZE_FORMAT, _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 st->print_cr("# Java VM: %s (%s %s %s)", | |
336 Abstract_VM_Version::vm_name(), | |
337 Abstract_VM_Version::vm_release(), | |
338 Abstract_VM_Version::vm_info_string(), | |
339 Abstract_VM_Version::vm_platform_string() | |
340 ); | |
341 | |
342 STEP(60, "(printing problematic frame)") | |
343 | |
344 // Print current frame if we have a context (i.e. it's a crash) | |
345 if (_context) { | |
346 st->print_cr("# Problematic frame:"); | |
347 st->print("# "); | |
348 frame fr = os::fetch_frame_from_context(_context); | |
349 fr.print_on_error(st, buf, sizeof(buf)); | |
350 st->cr(); | |
351 st->print_cr("#"); | |
352 } | |
353 | |
354 STEP(65, "(printing bug submit message)") | |
355 | |
356 if (_verbose) print_bug_submit_message(st, _thread); | |
357 | |
358 STEP(70, "(printing thread)" ) | |
359 | |
360 if (_verbose) { | |
361 st->cr(); | |
362 st->print_cr("--------------- T H R E A D ---------------"); | |
363 st->cr(); | |
364 } | |
365 | |
366 STEP(80, "(printing current thread)" ) | |
367 | |
368 // current thread | |
369 if (_verbose) { | |
370 if (_thread) { | |
371 st->print("Current thread (" PTR_FORMAT "): ", _thread); | |
372 _thread->print_on_error(st, buf, sizeof(buf)); | |
373 st->cr(); | |
374 } else { | |
375 st->print_cr("Current thread is native thread"); | |
376 } | |
377 st->cr(); | |
378 } | |
379 | |
380 STEP(90, "(printing siginfo)" ) | |
381 | |
382 // signal no, signal code, address that caused the fault | |
383 if (_verbose && _siginfo) { | |
384 os::print_siginfo(st, _siginfo); | |
385 st->cr(); | |
386 } | |
387 | |
388 STEP(100, "(printing registers, top of stack, instructions near pc)") | |
389 | |
390 // registers, top of stack, instructions near pc | |
391 if (_verbose && _context) { | |
392 os::print_context(st, _context); | |
393 st->cr(); | |
394 } | |
395 | |
396 STEP(110, "(printing stack bounds)" ) | |
397 | |
398 if (_verbose) { | |
399 st->print("Stack: "); | |
400 | |
401 address stack_top; | |
402 size_t stack_size; | |
403 | |
404 if (_thread) { | |
405 stack_top = _thread->stack_base(); | |
406 stack_size = _thread->stack_size(); | |
407 } else { | |
408 stack_top = os::current_stack_base(); | |
409 stack_size = os::current_stack_size(); | |
410 } | |
411 | |
412 address stack_bottom = stack_top - stack_size; | |
413 st->print("[" PTR_FORMAT "," PTR_FORMAT "]", stack_bottom, stack_top); | |
414 | |
415 frame fr = _context ? os::fetch_frame_from_context(_context) | |
416 : os::current_frame(); | |
417 | |
418 if (fr.sp()) { | |
419 st->print(", sp=" PTR_FORMAT, fr.sp()); | |
420 st->print(", free space=%dk", | |
421 ((intptr_t)fr.sp() - (intptr_t)stack_bottom) >> 10); | |
422 } | |
423 | |
424 st->cr(); | |
425 } | |
426 | |
427 STEP(120, "(printing native stack)" ) | |
428 | |
429 if (_verbose) { | |
430 frame fr = _context ? os::fetch_frame_from_context(_context) | |
431 : os::current_frame(); | |
432 | |
433 // see if it's a valid frame | |
434 if (fr.pc()) { | |
435 st->print_cr("Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)"); | |
436 | |
437 int count = 0; | |
438 | |
439 while (count++ < StackPrintLimit) { | |
440 fr.print_on_error(st, buf, sizeof(buf)); | |
441 st->cr(); | |
442 if (os::is_first_C_frame(&fr)) break; | |
443 fr = os::get_sender_for_C_frame(&fr); | |
444 } | |
445 | |
446 if (count > StackPrintLimit) { | |
447 st->print_cr("...<more frames>..."); | |
448 } | |
449 | |
450 st->cr(); | |
451 } | |
452 } | |
453 | |
454 STEP(130, "(printing Java stack)" ) | |
455 | |
456 if (_verbose && _thread && _thread->is_Java_thread()) { | |
457 JavaThread* jt = (JavaThread*)_thread; | |
458 if (jt->has_last_Java_frame()) { | |
459 st->print_cr("Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)"); | |
460 for(StackFrameStream sfs(jt); !sfs.is_done(); sfs.next()) { | |
461 sfs.current()->print_on_error(st, buf, sizeof(buf)); | |
462 st->cr(); | |
463 } | |
464 } | |
465 } | |
466 | |
467 STEP(140, "(printing VM operation)" ) | |
468 | |
469 if (_verbose && _thread && _thread->is_VM_thread()) { | |
470 VMThread* t = (VMThread*)_thread; | |
471 VM_Operation* op = t->vm_operation(); | |
472 if (op) { | |
473 op->print_on_error(st); | |
474 st->cr(); | |
475 st->cr(); | |
476 } | |
477 } | |
478 | |
479 STEP(150, "(printing current compile task)" ) | |
480 | |
481 if (_verbose && _thread && _thread->is_Compiler_thread()) { | |
482 CompilerThread* t = (CompilerThread*)_thread; | |
483 if (t->task()) { | |
484 st->cr(); | |
485 st->print_cr("Current CompileTask:"); | |
486 t->task()->print_line_on_error(st, buf, sizeof(buf)); | |
487 st->cr(); | |
488 } | |
489 } | |
490 | |
491 STEP(160, "(printing process)" ) | |
492 | |
493 if (_verbose) { | |
494 st->cr(); | |
495 st->print_cr("--------------- P R O C E S S ---------------"); | |
496 st->cr(); | |
497 } | |
498 | |
499 STEP(170, "(printing all threads)" ) | |
500 | |
501 // all threads | |
502 if (_verbose && _thread) { | |
503 Threads::print_on_error(st, _thread, buf, sizeof(buf)); | |
504 st->cr(); | |
505 } | |
506 | |
507 STEP(175, "(printing VM state)" ) | |
508 | |
509 if (_verbose) { | |
510 // Safepoint state | |
511 st->print("VM state:"); | |
512 | |
513 if (SafepointSynchronize::is_synchronizing()) st->print("synchronizing"); | |
514 else if (SafepointSynchronize::is_at_safepoint()) st->print("at safepoint"); | |
515 else st->print("not at safepoint"); | |
516 | |
517 // Also see if error occurred during initialization or shutdown | |
518 if (!Universe::is_fully_initialized()) { | |
519 st->print(" (not fully initialized)"); | |
520 } else if (VM_Exit::vm_exited()) { | |
521 st->print(" (shutting down)"); | |
522 } else { | |
523 st->print(" (normal execution)"); | |
524 } | |
525 st->cr(); | |
526 st->cr(); | |
527 } | |
528 | |
529 STEP(180, "(printing owned locks on error)" ) | |
530 | |
531 // mutexes/monitors that currently have an owner | |
532 if (_verbose) { | |
533 print_owned_locks_on_error(st); | |
534 st->cr(); | |
535 } | |
536 | |
537 STEP(190, "(printing heap information)" ) | |
538 | |
539 if (_verbose && Universe::is_fully_initialized()) { | |
540 // print heap information before vm abort | |
541 Universe::print_on(st); | |
542 st->cr(); | |
543 } | |
544 | |
545 STEP(200, "(printing dynamic libraries)" ) | |
546 | |
547 if (_verbose) { | |
548 // dynamic libraries, or memory map | |
549 os::print_dll_info(st); | |
550 st->cr(); | |
551 } | |
552 | |
553 STEP(210, "(printing VM options)" ) | |
554 | |
555 if (_verbose) { | |
556 // VM options | |
557 Arguments::print_on(st); | |
558 st->cr(); | |
559 } | |
560 | |
561 STEP(220, "(printing environment variables)" ) | |
562 | |
563 if (_verbose) { | |
564 os::print_environment_variables(st, env_list, buf, sizeof(buf)); | |
565 st->cr(); | |
566 } | |
567 | |
568 STEP(225, "(printing signal handlers)" ) | |
569 | |
570 if (_verbose) { | |
571 os::print_signal_handlers(st, buf, sizeof(buf)); | |
572 st->cr(); | |
573 } | |
574 | |
575 STEP(230, "" ) | |
576 | |
577 if (_verbose) { | |
578 st->cr(); | |
579 st->print_cr("--------------- S Y S T E M ---------------"); | |
580 st->cr(); | |
581 } | |
582 | |
583 STEP(240, "(printing OS information)" ) | |
584 | |
585 if (_verbose) { | |
586 os::print_os_info(st); | |
587 st->cr(); | |
588 } | |
589 | |
590 STEP(250, "(printing CPU info)" ) | |
591 if (_verbose) { | |
592 os::print_cpu_info(st); | |
593 st->cr(); | |
594 } | |
595 | |
596 STEP(260, "(printing memory info)" ) | |
597 | |
598 if (_verbose) { | |
599 os::print_memory_info(st); | |
600 st->cr(); | |
601 } | |
602 | |
603 STEP(270, "(printing internal vm info)" ) | |
604 | |
605 if (_verbose) { | |
606 st->print_cr("vm_info: %s", Abstract_VM_Version::internal_vm_info_string()); | |
607 st->cr(); | |
608 } | |
609 | |
610 STEP(280, "(printing date and time)" ) | |
611 | |
612 if (_verbose) { | |
613 os::print_date_and_time(st); | |
614 st->cr(); | |
615 } | |
616 | |
617 END | |
618 | |
619 # undef BEGIN | |
620 # undef STEP | |
621 # undef END | |
622 } | |
623 | |
624 | |
625 void VMError::report_and_die() { | |
626 // Don't allocate large buffer on stack | |
627 static char buffer[O_BUFLEN]; | |
628 | |
629 // First error, and its thread id. We must be able to handle native thread, | |
630 // so use thread id instead of Thread* to identify thread. | |
631 static VMError* first_error; | |
632 static jlong first_error_tid; | |
633 | |
634 // An error could happen before tty is initialized or after it has been | |
635 // destroyed. Here we use a very simple unbuffered fdStream for printing. | |
636 // Only out.print_raw() and out.print_raw_cr() should be used, as other | |
637 // printing methods need to allocate large buffer on stack. To format a | |
638 // string, use jio_snprintf() with a static buffer or use staticBufferStream. | |
639 static fdStream out(defaultStream::output_fd()); | |
640 | |
641 // How many errors occurred in error handler when reporting first_error. | |
642 static int recursive_error_count; | |
643 | |
644 // We will first print a brief message to standard out (verbose = false), | |
645 // then save detailed information in log file (verbose = true). | |
646 static bool out_done = false; // done printing to standard out | |
647 static bool log_done = false; // done saving error log | |
648 static fdStream log; // error log | |
649 | |
650 if (SuppressFatalErrorMessage) { | |
651 os::abort(); | |
652 } | |
653 jlong mytid = os::current_thread_id(); | |
654 if (first_error == NULL && | |
655 Atomic::cmpxchg_ptr(this, &first_error, NULL) == NULL) { | |
656 | |
657 // first time | |
658 first_error_tid = mytid; | |
659 set_error_reported(); | |
660 | |
661 if (ShowMessageBoxOnError) { | |
662 show_message_box(buffer, sizeof(buffer)); | |
663 | |
664 // User has asked JVM to abort. Reset ShowMessageBoxOnError so the | |
665 // WatcherThread can kill JVM if the error handler hangs. | |
666 ShowMessageBoxOnError = false; | |
667 } | |
668 | |
669 // reset signal handlers or exception filter; make sure recursive crashes | |
670 // are handled properly. | |
671 reset_signal_handlers(); | |
672 | |
673 } else { | |
674 // This is not the first error, see if it happened in a different thread | |
675 // or in the same thread during error reporting. | |
676 if (first_error_tid != mytid) { | |
677 jio_snprintf(buffer, sizeof(buffer), | |
678 "[thread " INT64_FORMAT " also had an error]", | |
679 mytid); | |
680 out.print_raw_cr(buffer); | |
681 | |
682 // error reporting is not MT-safe, block current thread | |
683 os::infinite_sleep(); | |
684 | |
685 } else { | |
686 if (recursive_error_count++ > 30) { | |
687 out.print_raw_cr("[Too many errors, abort]"); | |
688 os::die(); | |
689 } | |
690 | |
691 jio_snprintf(buffer, sizeof(buffer), | |
692 "[error occurred during error reporting %s, id 0x%x]", | |
693 first_error ? first_error->_current_step_info : "", | |
694 _id); | |
695 if (log.is_open()) { | |
696 log.cr(); | |
697 log.print_raw_cr(buffer); | |
698 log.cr(); | |
699 } else { | |
700 out.cr(); | |
701 out.print_raw_cr(buffer); | |
702 out.cr(); | |
703 } | |
704 } | |
705 } | |
706 | |
707 // print to screen | |
708 if (!out_done) { | |
709 first_error->_verbose = false; | |
710 | |
711 staticBufferStream sbs(buffer, sizeof(buffer), &out); | |
712 first_error->report(&sbs); | |
713 | |
714 out_done = true; | |
715 | |
716 first_error->_current_step = 0; // reset current_step | |
717 first_error->_current_step_info = ""; // reset current_step string | |
718 } | |
719 | |
720 // print to error log file | |
721 if (!log_done) { | |
722 first_error->_verbose = true; | |
723 | |
724 // see if log file is already open | |
725 if (!log.is_open()) { | |
726 // open log file | |
727 int fd = -1; | |
728 | |
729 if (ErrorFile != NULL) { | |
730 bool copy_ok = | |
731 Arguments::copy_expand_pid(ErrorFile, strlen(ErrorFile), buffer, sizeof(buffer)); | |
732 if (copy_ok) { | |
733 fd = open(buffer, O_WRONLY | O_CREAT | O_TRUNC, 0666); | |
734 } | |
735 } | |
736 | |
737 if (fd == -1) { | |
738 const char *cwd = os::get_current_directory(buffer, sizeof(buffer)); | |
739 size_t len = strlen(cwd); | |
740 // either user didn't specify, or the user's location failed, | |
741 // so use the default name in the current directory | |
742 jio_snprintf(&buffer[len], sizeof(buffer)-len, "%shs_err_pid%u.log", | |
743 os::file_separator(), os::current_process_id()); | |
744 fd = open(buffer, O_WRONLY | O_CREAT | O_TRUNC, 0666); | |
745 } | |
746 | |
747 if (fd == -1) { | |
748 // try temp directory | |
749 const char * tmpdir = os::get_temp_directory(); | |
750 jio_snprintf(buffer, sizeof(buffer), "%shs_err_pid%u.log", | |
751 (tmpdir ? tmpdir : ""), os::current_process_id()); | |
752 fd = open(buffer, O_WRONLY | O_CREAT | O_TRUNC, 0666); | |
753 } | |
754 | |
755 if (fd != -1) { | |
756 out.print_raw("# An error report file with more information is saved as:\n# "); | |
757 out.print_raw_cr(buffer); | |
758 os::set_error_file(buffer); | |
759 | |
760 log.set_fd(fd); | |
761 } else { | |
762 out.print_raw_cr("# Can not save log file, dump to screen.."); | |
763 log.set_fd(defaultStream::output_fd()); | |
764 } | |
765 } | |
766 | |
767 staticBufferStream sbs(buffer, O_BUFLEN, &log); | |
768 first_error->report(&sbs); | |
769 first_error->_current_step = 0; // reset current_step | |
770 first_error->_current_step_info = ""; // reset current_step string | |
771 | |
772 if (log.fd() != defaultStream::output_fd()) { | |
773 close(log.fd()); | |
774 } | |
775 | |
776 log.set_fd(-1); | |
777 log_done = true; | |
778 } | |
779 | |
780 | |
781 static bool skip_OnError = false; | |
782 if (!skip_OnError && OnError && OnError[0]) { | |
783 skip_OnError = true; | |
784 | |
785 out.print_raw_cr("#"); | |
786 out.print_raw ("# -XX:OnError=\""); | |
787 out.print_raw (OnError); | |
788 out.print_raw_cr("\""); | |
789 | |
790 char* cmd; | |
791 const char* ptr = OnError; | |
792 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){ | |
793 out.print_raw ("# Executing "); | |
794 #if defined(LINUX) | |
795 out.print_raw ("/bin/sh -c "); | |
796 #elif defined(SOLARIS) | |
797 out.print_raw ("/usr/bin/sh -c "); | |
798 #endif | |
799 out.print_raw ("\""); | |
800 out.print_raw (cmd); | |
801 out.print_raw_cr("\" ..."); | |
802 | |
803 os::fork_and_exec(cmd); | |
804 } | |
805 | |
806 // done with OnError | |
807 OnError = NULL; | |
808 } | |
809 | |
810 static bool skip_bug_url = false; | |
811 if (!skip_bug_url) { | |
812 skip_bug_url = true; | |
813 | |
814 out.print_raw_cr("#"); | |
815 print_bug_submit_message(&out, _thread); | |
816 } | |
817 | |
818 if (!UseOSErrorReporting) { | |
819 // os::abort() will call abort hooks, try it first. | |
820 static bool skip_os_abort = false; | |
821 if (!skip_os_abort) { | |
822 skip_os_abort = true; | |
823 os::abort(); | |
824 } | |
825 | |
826 // if os::abort() doesn't abort, try os::die(); | |
827 os::die(); | |
828 } | |
829 } | |
830 | |
831 /* | |
832 * OnOutOfMemoryError scripts/commands executed while VM is a safepoint - this | |
833 * ensures utilities such as jmap can observe the process is a consistent state. | |
834 */ | |
835 class VM_ReportJavaOutOfMemory : public VM_Operation { | |
836 private: | |
837 VMError *_err; | |
838 public: | |
839 VM_ReportJavaOutOfMemory(VMError *err) { _err = err; } | |
840 VMOp_Type type() const { return VMOp_ReportJavaOutOfMemory; } | |
841 void doit(); | |
842 }; | |
843 | |
844 void VM_ReportJavaOutOfMemory::doit() { | |
845 // Don't allocate large buffer on stack | |
846 static char buffer[O_BUFLEN]; | |
847 | |
848 tty->print_cr("#"); | |
849 tty->print_cr("# java.lang.OutOfMemoryError: %s", _err->message()); | |
850 tty->print_cr("# -XX:OnOutOfMemoryError=\"%s\"", OnOutOfMemoryError); | |
851 | |
852 // make heap parsability | |
853 Universe::heap()->ensure_parsability(false); // no need to retire TLABs | |
854 | |
855 char* cmd; | |
856 const char* ptr = OnOutOfMemoryError; | |
857 while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){ | |
858 tty->print("# Executing "); | |
859 #if defined(LINUX) | |
860 tty->print ("/bin/sh -c "); | |
861 #elif defined(SOLARIS) | |
862 tty->print ("/usr/bin/sh -c "); | |
863 #endif | |
864 tty->print_cr("\"%s\"...", cmd); | |
865 | |
866 os::fork_and_exec(cmd); | |
867 } | |
868 } | |
869 | |
870 void VMError::report_java_out_of_memory() { | |
871 if (OnOutOfMemoryError && OnOutOfMemoryError[0]) { | |
872 MutexLocker ml(Heap_lock); | |
873 VM_ReportJavaOutOfMemory op(this); | |
874 VMThread::execute(&op); | |
875 } | |
876 } |