Mercurial > hg > truffle

comparison src/os/posix/vm/os_posix.cpp @ 14460:8a9bb7821e28

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Merge
author kvn
date Wed, 19 Feb 2014 12:08:49 -0800
parents c250880a6673 2b8e28fdf503
children bb9356ec5967 78bbf4d43a14
comparison
equal deleted inserted replaced
14360:e8ef156f0bc9 14460:8a9bb7821e28
1 /* 1 /*
2 * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 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 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
8 * 8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT 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 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 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 12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code). 13 * accompanied this code).
14 * 14 *
15 * You should have received a copy of the GNU General Public License version 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, 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. 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 * 18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 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 20 * or visit www.oracle.com if you need additional information or have any
21 * questions. 21 * questions.
22 * 22 *
23 */ 23 */
24 24
25 #include "utilities/globalDefinitions.hpp"
25 #include "prims/jvm.h" 26 #include "prims/jvm.h"
26 #include "runtime/frame.inline.hpp" 27 #include "runtime/frame.inline.hpp"
27 #include "runtime/os.hpp" 28 #include "runtime/os.hpp"
28 #include "utilities/vmError.hpp" 29 #include "utilities/vmError.hpp"
29 30
31 #include <signal.h>
30 #include <unistd.h> 32 #include <unistd.h>
31 #include <sys/resource.h> 33 #include <sys/resource.h>
32 #include <sys/utsname.h> 34 #include <sys/utsname.h>
33 #include <pthread.h> 35 #include <pthread.h>
34 #include <signal.h> 36 #include <signal.h>
35 37
38 // Todo: provide a os::get_max_process_id() or similar. Number of processes
39 // may have been configured, can be read more accurately from proc fs etc.
40 #ifndef MAX_PID
41 #define MAX_PID INT_MAX
42 #endif
43 #define IS_VALID_PID(p) (p > 0 && p < MAX_PID)
36 44
37 // Check core dump limit and report possible place where core can be found 45 // Check core dump limit and report possible place where core can be found
38 void os::check_or_create_dump(void* exceptionRecord, void* contextRecord, char* buffer, size_t bufferSize) { 46 void os::check_or_create_dump(void* exceptionRecord, void* contextRecord, char* buffer, size_t bufferSize) {
39 int n; 47 int n;
40 struct rlimit rlim; 48 struct rlimit rlim;
156 st->print(", CORE "); 164 st->print(", CORE ");
157 getrlimit(RLIMIT_CORE, &rlim); 165 getrlimit(RLIMIT_CORE, &rlim);
158 if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity"); 166 if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity");
159 else st->print("%uk", rlim.rlim_cur >> 10); 167 else st->print("%uk", rlim.rlim_cur >> 10);
160 168
161 //Isn't there on solaris 169 // Isn't there on solaris
162 #ifndef TARGET_OS_FAMILY_solaris 170 #if !defined(TARGET_OS_FAMILY_solaris) && !defined(TARGET_OS_FAMILY_aix)
163 st->print(", NPROC "); 171 st->print(", NPROC ");
164 getrlimit(RLIMIT_NPROC, &rlim); 172 getrlimit(RLIMIT_NPROC, &rlim);
165 if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity"); 173 if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity");
166 else st->print("%d", rlim.rlim_cur); 174 else st->print("%d", rlim.rlim_cur);
167 #endif 175 #endif
305 strncat(agent_entry_name, lib_name, name_len); 313 strncat(agent_entry_name, lib_name, name_len);
306 } 314 }
307 return agent_entry_name; 315 return agent_entry_name;
308 } 316 }
309 317
318 // Returned string is a constant. For unknown signals "UNKNOWN" is returned.
319 const char* os::Posix::get_signal_name(int sig, char* out, size_t outlen) {
320
321 static const struct {
322 int sig; const char* name;
323 }
324 info[] =
325 {
326 { SIGABRT, "SIGABRT" },
327 #ifdef SIGAIO
328 { SIGAIO, "SIGAIO" },
329 #endif
330 { SIGALRM, "SIGALRM" },
331 #ifdef SIGALRM1
332 { SIGALRM1, "SIGALRM1" },
333 #endif
334 { SIGBUS, "SIGBUS" },
335 #ifdef SIGCANCEL
336 { SIGCANCEL, "SIGCANCEL" },
337 #endif
338 { SIGCHLD, "SIGCHLD" },
339 #ifdef SIGCLD
340 { SIGCLD, "SIGCLD" },
341 #endif
342 { SIGCONT, "SIGCONT" },
343 #ifdef SIGCPUFAIL
344 { SIGCPUFAIL, "SIGCPUFAIL" },
345 #endif
346 #ifdef SIGDANGER
347 { SIGDANGER, "SIGDANGER" },
348 #endif
349 #ifdef SIGDIL
350 { SIGDIL, "SIGDIL" },
351 #endif
352 #ifdef SIGEMT
353 { SIGEMT, "SIGEMT" },
354 #endif
355 { SIGFPE, "SIGFPE" },
356 #ifdef SIGFREEZE
357 { SIGFREEZE, "SIGFREEZE" },
358 #endif
359 #ifdef SIGGFAULT
360 { SIGGFAULT, "SIGGFAULT" },
361 #endif
362 #ifdef SIGGRANT
363 { SIGGRANT, "SIGGRANT" },
364 #endif
365 { SIGHUP, "SIGHUP" },
366 { SIGILL, "SIGILL" },
367 { SIGINT, "SIGINT" },
368 #ifdef SIGIO
369 { SIGIO, "SIGIO" },
370 #endif
371 #ifdef SIGIOINT
372 { SIGIOINT, "SIGIOINT" },
373 #endif
374 #ifdef SIGIOT
375 // SIGIOT is there for BSD compatibility, but on most Unices just a
376 // synonym for SIGABRT. The result should be "SIGABRT", not
377 // "SIGIOT".
378 #if (SIGIOT != SIGABRT )
379 { SIGIOT, "SIGIOT" },
380 #endif
381 #endif
382 #ifdef SIGKAP
383 { SIGKAP, "SIGKAP" },
384 #endif
385 { SIGKILL, "SIGKILL" },
386 #ifdef SIGLOST
387 { SIGLOST, "SIGLOST" },
388 #endif
389 #ifdef SIGLWP
390 { SIGLWP, "SIGLWP" },
391 #endif
392 #ifdef SIGLWPTIMER
393 { SIGLWPTIMER, "SIGLWPTIMER" },
394 #endif
395 #ifdef SIGMIGRATE
396 { SIGMIGRATE, "SIGMIGRATE" },
397 #endif
398 #ifdef SIGMSG
399 { SIGMSG, "SIGMSG" },
400 #endif
401 { SIGPIPE, "SIGPIPE" },
402 #ifdef SIGPOLL
403 { SIGPOLL, "SIGPOLL" },
404 #endif
405 #ifdef SIGPRE
406 { SIGPRE, "SIGPRE" },
407 #endif
408 { SIGPROF, "SIGPROF" },
409 #ifdef SIGPTY
410 { SIGPTY, "SIGPTY" },
411 #endif
412 #ifdef SIGPWR
413 { SIGPWR, "SIGPWR" },
414 #endif
415 { SIGQUIT, "SIGQUIT" },
416 #ifdef SIGRECONFIG
417 { SIGRECONFIG, "SIGRECONFIG" },
418 #endif
419 #ifdef SIGRECOVERY
420 { SIGRECOVERY, "SIGRECOVERY" },
421 #endif
422 #ifdef SIGRESERVE
423 { SIGRESERVE, "SIGRESERVE" },
424 #endif
425 #ifdef SIGRETRACT
426 { SIGRETRACT, "SIGRETRACT" },
427 #endif
428 #ifdef SIGSAK
429 { SIGSAK, "SIGSAK" },
430 #endif
431 { SIGSEGV, "SIGSEGV" },
432 #ifdef SIGSOUND
433 { SIGSOUND, "SIGSOUND" },
434 #endif
435 { SIGSTOP, "SIGSTOP" },
436 { SIGSYS, "SIGSYS" },
437 #ifdef SIGSYSERROR
438 { SIGSYSERROR, "SIGSYSERROR" },
439 #endif
440 #ifdef SIGTALRM
441 { SIGTALRM, "SIGTALRM" },
442 #endif
443 { SIGTERM, "SIGTERM" },
444 #ifdef SIGTHAW
445 { SIGTHAW, "SIGTHAW" },
446 #endif
447 { SIGTRAP, "SIGTRAP" },
448 #ifdef SIGTSTP
449 { SIGTSTP, "SIGTSTP" },
450 #endif
451 { SIGTTIN, "SIGTTIN" },
452 { SIGTTOU, "SIGTTOU" },
453 #ifdef SIGURG
454 { SIGURG, "SIGURG" },
455 #endif
456 { SIGUSR1, "SIGUSR1" },
457 { SIGUSR2, "SIGUSR2" },
458 #ifdef SIGVIRT
459 { SIGVIRT, "SIGVIRT" },
460 #endif
461 { SIGVTALRM, "SIGVTALRM" },
462 #ifdef SIGWAITING
463 { SIGWAITING, "SIGWAITING" },
464 #endif
465 #ifdef SIGWINCH
466 { SIGWINCH, "SIGWINCH" },
467 #endif
468 #ifdef SIGWINDOW
469 { SIGWINDOW, "SIGWINDOW" },
470 #endif
471 { SIGXCPU, "SIGXCPU" },
472 { SIGXFSZ, "SIGXFSZ" },
473 #ifdef SIGXRES
474 { SIGXRES, "SIGXRES" },
475 #endif
476 { -1, NULL }
477 };
478
479 const char* ret = NULL;
480
481 #ifdef SIGRTMIN
482 if (sig >= SIGRTMIN && sig <= SIGRTMAX) {
483 if (sig == SIGRTMIN) {
484 ret = "SIGRTMIN";
485 } else if (sig == SIGRTMAX) {
486 ret = "SIGRTMAX";
487 } else {
488 jio_snprintf(out, outlen, "SIGRTMIN+%d", sig - SIGRTMIN);
489 return out;
490 }
491 }
492 #endif
493
494 if (sig > 0) {
495 for (int idx = 0; info[idx].sig != -1; idx ++) {
496 if (info[idx].sig == sig) {
497 ret = info[idx].name;
498 break;
499 }
500 }
501 }
502
503 if (!ret) {
504 if (!is_valid_signal(sig)) {
505 ret = "INVALID";
506 } else {
507 ret = "UNKNOWN";
508 }
509 }
510
511 jio_snprintf(out, outlen, ret);
512 return out;
513 }
514
515 // Returns true if signal number is valid.
516 bool os::Posix::is_valid_signal(int sig) {
517 // MacOS not really POSIX compliant: sigaddset does not return
518 // an error for invalid signal numbers. However, MacOS does not
519 // support real time signals and simply seems to have just 33
520 // signals with no holes in the signal range.
521 #ifdef __APPLE__
522 return sig >= 1 && sig < NSIG;
523 #else
524 // Use sigaddset to check for signal validity.
525 sigset_t set;
526 if (sigaddset(&set, sig) == -1 && errno == EINVAL) {
527 return false;
528 }
529 return true;
530 #endif
531 }
532
533 #define NUM_IMPORTANT_SIGS 32
534 // Returns one-line short description of a signal set in a user provided buffer.
535 const char* os::Posix::describe_signal_set_short(const sigset_t* set, char* buffer, size_t buf_size) {
536 assert(buf_size == (NUM_IMPORTANT_SIGS + 1), "wrong buffer size");
537 // Note: for shortness, just print out the first 32. That should
538 // cover most of the useful ones, apart from realtime signals.
539 for (int sig = 1; sig <= NUM_IMPORTANT_SIGS; sig++) {
540 const int rc = sigismember(set, sig);
541 if (rc == -1 && errno == EINVAL) {
542 buffer[sig-1] = '?';
543 } else {
544 buffer[sig-1] = rc == 0 ? '0' : '1';
545 }
546 }
547 buffer[NUM_IMPORTANT_SIGS] = 0;
548 return buffer;
549 }
550
551 // Prints one-line description of a signal set.
552 void os::Posix::print_signal_set_short(outputStream* st, const sigset_t* set) {
553 char buf[NUM_IMPORTANT_SIGS + 1];
554 os::Posix::describe_signal_set_short(set, buf, sizeof(buf));
555 st->print(buf);
556 }
557
558 // Writes one-line description of a combination of sigaction.sa_flags into a user
559 // provided buffer. Returns that buffer.
560 const char* os::Posix::describe_sa_flags(int flags, char* buffer, size_t size) {
561 char* p = buffer;
562 size_t remaining = size;
563 bool first = true;
564 int idx = 0;
565
566 assert(buffer, "invalid argument");
567
568 if (size == 0) {
569 return buffer;
570 }
571
572 strncpy(buffer, "none", size);
573
574 const struct {
575 int i;
576 const char* s;
577 } flaginfo [] = {
578 { SA_NOCLDSTOP, "SA_NOCLDSTOP" },
579 { SA_ONSTACK, "SA_ONSTACK" },
580 { SA_RESETHAND, "SA_RESETHAND" },
581 { SA_RESTART, "SA_RESTART" },
582 { SA_SIGINFO, "SA_SIGINFO" },
583 { SA_NOCLDWAIT, "SA_NOCLDWAIT" },
584 { SA_NODEFER, "SA_NODEFER" },
585 #ifdef AIX
586 { SA_ONSTACK, "SA_ONSTACK" },
587 { SA_OLDSTYLE, "SA_OLDSTYLE" },
588 #endif
589 { 0, NULL }
590 };
591
592 for (idx = 0; flaginfo[idx].s && remaining > 1; idx++) {
593 if (flags & flaginfo[idx].i) {
594 if (first) {
595 jio_snprintf(p, remaining, "%s", flaginfo[idx].s);
596 first = false;
597 } else {
598 jio_snprintf(p, remaining, "|%s", flaginfo[idx].s);
599 }
600 const size_t len = strlen(p);
601 p += len;
602 remaining -= len;
603 }
604 }
605
606 buffer[size - 1] = '\0';
607
608 return buffer;
609 }
610
611 // Prints one-line description of a combination of sigaction.sa_flags.
612 void os::Posix::print_sa_flags(outputStream* st, int flags) {
613 char buffer[0x100];
614 os::Posix::describe_sa_flags(flags, buffer, sizeof(buffer));
615 st->print(buffer);
616 }
617
618 // Helper function for os::Posix::print_siginfo_...():
619 // return a textual description for signal code.
620 struct enum_sigcode_desc_t {
621 const char* s_name;
622 const char* s_desc;
623 };
624
625 static bool get_signal_code_description(const siginfo_t* si, enum_sigcode_desc_t* out) {
626
627 const struct {
628 int sig; int code; const char* s_code; const char* s_desc;
629 } t1 [] = {
630 { SIGILL, ILL_ILLOPC, "ILL_ILLOPC", "Illegal opcode." },
631 { SIGILL, ILL_ILLOPN, "ILL_ILLOPN", "Illegal operand." },
632 { SIGILL, ILL_ILLADR, "ILL_ILLADR", "Illegal addressing mode." },
633 { SIGILL, ILL_ILLTRP, "ILL_ILLTRP", "Illegal trap." },
634 { SIGILL, ILL_PRVOPC, "ILL_PRVOPC", "Privileged opcode." },
635 { SIGILL, ILL_PRVREG, "ILL_PRVREG", "Privileged register." },
636 { SIGILL, ILL_COPROC, "ILL_COPROC", "Coprocessor error." },
637 { SIGILL, ILL_BADSTK, "ILL_BADSTK", "Internal stack error." },
638 #if defined(IA64) && defined(LINUX)
639 { SIGILL, ILL_BADIADDR, "ILL_BADIADDR", "Unimplemented instruction address" },
640 { SIGILL, ILL_BREAK, "ILL_BREAK", "Application Break instruction" },
641 #endif
642 { SIGFPE, FPE_INTDIV, "FPE_INTDIV", "Integer divide by zero." },
643 { SIGFPE, FPE_INTOVF, "FPE_INTOVF", "Integer overflow." },
644 { SIGFPE, FPE_FLTDIV, "FPE_FLTDIV", "Floating-point divide by zero." },
645 { SIGFPE, FPE_FLTOVF, "FPE_FLTOVF", "Floating-point overflow." },
646 { SIGFPE, FPE_FLTUND, "FPE_FLTUND", "Floating-point underflow." },
647 { SIGFPE, FPE_FLTRES, "FPE_FLTRES", "Floating-point inexact result." },
648 { SIGFPE, FPE_FLTINV, "FPE_FLTINV", "Invalid floating-point operation." },
649 { SIGFPE, FPE_FLTSUB, "FPE_FLTSUB", "Subscript out of range." },
650 { SIGSEGV, SEGV_MAPERR, "SEGV_MAPERR", "Address not mapped to object." },
651 { SIGSEGV, SEGV_ACCERR, "SEGV_ACCERR", "Invalid permissions for mapped object." },
652 #ifdef AIX
653 // no explanation found what keyerr would be
654 { SIGSEGV, SEGV_KEYERR, "SEGV_KEYERR", "key error" },
655 #endif
656 #if defined(IA64) && !defined(AIX)
657 { SIGSEGV, SEGV_PSTKOVF, "SEGV_PSTKOVF", "Paragraph stack overflow" },
658 #endif
659 { SIGBUS, BUS_ADRALN, "BUS_ADRALN", "Invalid address alignment." },
660 { SIGBUS, BUS_ADRERR, "BUS_ADRERR", "Nonexistent physical address." },
661 { SIGBUS, BUS_OBJERR, "BUS_OBJERR", "Object-specific hardware error." },
662 { SIGTRAP, TRAP_BRKPT, "TRAP_BRKPT", "Process breakpoint." },
663 { SIGTRAP, TRAP_TRACE, "TRAP_TRACE", "Process trace trap." },
664 { SIGCHLD, CLD_EXITED, "CLD_EXITED", "Child has exited." },
665 { SIGCHLD, CLD_KILLED, "CLD_KILLED", "Child has terminated abnormally and did not create a core file." },
666 { SIGCHLD, CLD_DUMPED, "CLD_DUMPED", "Child has terminated abnormally and created a core file." },
667 { SIGCHLD, CLD_TRAPPED, "CLD_TRAPPED", "Traced child has trapped." },
668 { SIGCHLD, CLD_STOPPED, "CLD_STOPPED", "Child has stopped." },
669 { SIGCHLD, CLD_CONTINUED,"CLD_CONTINUED","Stopped child has continued." },
670 #ifdef SIGPOLL
671 { SIGPOLL, POLL_OUT, "POLL_OUT", "Output buffers available." },
672 { SIGPOLL, POLL_MSG, "POLL_MSG", "Input message available." },
673 { SIGPOLL, POLL_ERR, "POLL_ERR", "I/O error." },
674 { SIGPOLL, POLL_PRI, "POLL_PRI", "High priority input available." },
675 { SIGPOLL, POLL_HUP, "POLL_HUP", "Device disconnected. [Option End]" },
676 #endif
677 { -1, -1, NULL, NULL }
678 };
679
680 // Codes valid in any signal context.
681 const struct {
682 int code; const char* s_code; const char* s_desc;
683 } t2 [] = {
684 { SI_USER, "SI_USER", "Signal sent by kill()." },
685 { SI_QUEUE, "SI_QUEUE", "Signal sent by the sigqueue()." },
686 { SI_TIMER, "SI_TIMER", "Signal generated by expiration of a timer set by timer_settime()." },
687 { SI_ASYNCIO, "SI_ASYNCIO", "Signal generated by completion of an asynchronous I/O request." },
688 { SI_MESGQ, "SI_MESGQ", "Signal generated by arrival of a message on an empty message queue." },
689 // Linux specific
690 #ifdef SI_TKILL
691 { SI_TKILL, "SI_TKILL", "Signal sent by tkill (pthread_kill)" },
692 #endif
693 #ifdef SI_DETHREAD
694 { SI_DETHREAD, "SI_DETHREAD", "Signal sent by execve() killing subsidiary threads" },
695 #endif
696 #ifdef SI_KERNEL
697 { SI_KERNEL, "SI_KERNEL", "Signal sent by kernel." },
698 #endif
699 #ifdef SI_SIGIO
700 { SI_SIGIO, "SI_SIGIO", "Signal sent by queued SIGIO" },
701 #endif
702
703 #ifdef AIX
704 { SI_UNDEFINED, "SI_UNDEFINED","siginfo contains partial information" },
705 { SI_EMPTY, "SI_EMPTY", "siginfo contains no useful information" },
706 #endif
707
708 #ifdef __sun
709 { SI_NOINFO, "SI_NOINFO", "No signal information" },
710 { SI_RCTL, "SI_RCTL", "kernel generated signal via rctl action" },
711 { SI_LWP, "SI_LWP", "Signal sent via lwp_kill" },
712 #endif
713
714 { -1, NULL, NULL }
715 };
716
717 const char* s_code = NULL;
718 const char* s_desc = NULL;
719
720 for (int i = 0; t1[i].sig != -1; i ++) {
721 if (t1[i].sig == si->si_signo && t1[i].code == si->si_code) {
722 s_code = t1[i].s_code;
723 s_desc = t1[i].s_desc;
724 break;
725 }
726 }
727
728 if (s_code == NULL) {
729 for (int i = 0; t2[i].s_code != NULL; i ++) {
730 if (t2[i].code == si->si_code) {
731 s_code = t2[i].s_code;
732 s_desc = t2[i].s_desc;
733 }
734 }
735 }
736
737 if (s_code == NULL) {
738 out->s_name = "unknown";
739 out->s_desc = "unknown";
740 return false;
741 }
742
743 out->s_name = s_code;
744 out->s_desc = s_desc;
745
746 return true;
747 }
748
749 // A POSIX conform, platform-independend siginfo print routine.
750 // Short print out on one line.
751 void os::Posix::print_siginfo_brief(outputStream* os, const siginfo_t* si) {
752 char buf[20];
753 os->print("siginfo: ");
754
755 if (!si) {
756 os->print("<null>");
757 return;
758 }
759
760 // See print_siginfo_full() for details.
761 const int sig = si->si_signo;
762
763 os->print("si_signo: %d (%s)", sig, os::Posix::get_signal_name(sig, buf, sizeof(buf)));
764
765 enum_sigcode_desc_t ed;
766 if (get_signal_code_description(si, &ed)) {
767 os->print(", si_code: %d (%s)", si->si_code, ed.s_name);
768 } else {
769 os->print(", si_code: %d (unknown)", si->si_code);
770 }
771
772 if (si->si_errno) {
773 os->print(", si_errno: %d", si->si_errno);
774 }
775
776 const int me = (int) ::getpid();
777 const int pid = (int) si->si_pid;
778
779 if (si->si_code == SI_USER || si->si_code == SI_QUEUE) {
780 if (IS_VALID_PID(pid) && pid != me) {
781 os->print(", sent from pid: %d (uid: %d)", pid, (int) si->si_uid);
782 }
783 } else if (sig == SIGSEGV || sig == SIGBUS || sig == SIGILL ||
784 sig == SIGTRAP || sig == SIGFPE) {
785 os->print(", si_addr: " PTR_FORMAT, si->si_addr);
786 #ifdef SIGPOLL
787 } else if (sig == SIGPOLL) {
788 os->print(", si_band: " PTR64_FORMAT, (uint64_t)si->si_band);
789 #endif
790 } else if (sig == SIGCHLD) {
791 os->print_cr(", si_pid: %d, si_uid: %d, si_status: %d", (int) si->si_pid, si->si_uid, si->si_status);
792 }
793 }
794
310 os::WatcherThreadCrashProtection::WatcherThreadCrashProtection() { 795 os::WatcherThreadCrashProtection::WatcherThreadCrashProtection() {
311 assert(Thread::current()->is_Watcher_thread(), "Must be WatcherThread"); 796 assert(Thread::current()->is_Watcher_thread(), "Must be WatcherThread");
312 } 797 }
313 798
314 /* 799 /*