01d6121c7f
builds, so disable it there
* On 10.4.8 (and possibly others), siginfo is NULL in the signal
callback on 64 bit Intel builds, so account for that in the signal
callback.
This commit was SVN r14045.
435 строки
14 KiB
C
435 строки
14 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2005 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2006 Sun Microsystems, Inc. All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "opal_config.h"
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#include <stdio.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#ifdef HAVE_STRING_H
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#include <string.h>
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#endif
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#ifdef HAVE_SIGNAL_H
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#include <signal.h>
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#endif
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#include "opal/util/stacktrace.h"
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#include "opal/mca/base/mca_base_param.h"
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#include "opal/mca/backtrace/backtrace.h"
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#include "opal/constants.h"
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#ifndef _NSIG
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#define _NSIG 32
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#endif
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#define HOSTFORMAT "[%s:%05d] "
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static char stacktrace_hostname[64];
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/**
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* This function is being called as a signal-handler in response
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* to a user-specified signal (e.g. SIGFPE or SIGSEGV).
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* For Linux/Glibc, it then uses backtrace and backtrace_symbols
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* to figure the current stack and then prints that out to stdout.
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* Where available, the BSD libexecinfo is used to provide Linux/Glibc
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* compatible backtrace and backtrace_symbols functions.
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* Yes, printf and malloc are not signal-safe per se, but should be
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* on Linux?
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*
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* @param signo with the signal number raised
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* @param info with information regarding the reason/send of the signal
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* @param p
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*
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* FIXME: Should distinguish for systems, which don't have siginfo...
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*/
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#if OMPI_WANT_PRETTY_PRINT_STACKTRACE && ! defined(__WINDOWS__)
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static void opal_show_stackframe (int signo, siginfo_t * info, void * p)
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{
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char print_buffer[1024];
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char * tmp = print_buffer;
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int size = sizeof (print_buffer);
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int ret, traces_size;
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char *si_code_str = "";
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char **traces;
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/* write out the footer information */
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memset (print_buffer, 0, sizeof (print_buffer));
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ret = snprintf(print_buffer, sizeof(print_buffer),
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HOSTFORMAT "*** Process received signal ***\n",
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stacktrace_hostname, getpid());
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write(fileno(stderr), print_buffer, ret);
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fflush(stderr);
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/*
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* Yes, we are doing printf inside a signal-handler.
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* However, backtrace itself calls malloc (which may not be signal-safe,
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* under linux, printf and malloc are)
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*
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* We could use backtrace_symbols_fd and write directly into an
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* filedescriptor, however, without formatting -- also this fd
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* should be opened in a sensible way...
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*/
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memset (print_buffer, 0, sizeof (print_buffer));
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#ifdef HAVE_STRSIGNAL
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ret = snprintf (tmp, size, HOSTFORMAT "Signal: %s (%d)\n",
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stacktrace_hostname, getpid(), strsignal(signo), signo);
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#else
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ret = snprintf (tmp, size, HOSTFORMAT "Signal: %d\n",
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stacktrace_hostname, getpid(), signo);
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#endif
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size -= ret;
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tmp += ret;
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if (NULL != info) {
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switch (signo)
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{
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case SIGILL:
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switch (info->si_code)
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{
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#ifdef ILL_ILLOPC
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case ILL_ILLOPC: si_code_str = "Illegal opcode"; break;
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#endif
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#ifdef ILL_ILLOPN
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case ILL_ILLOPN: si_code_str = "Illegal operand"; break;
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#endif
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#ifdef ILL_ILLADR
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case ILL_ILLADR: si_code_str = "Illegal addressing mode"; break;
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#endif
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#ifdef ILL_ILLTRP
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case ILL_ILLTRP: si_code_str = "Illegal trap"; break;
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#endif
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#ifdef ILL_PRVOPC
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case ILL_PRVOPC: si_code_str = "Privileged opcode"; break;
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#endif
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#ifdef ILL_PRVREG
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case ILL_PRVREG: si_code_str = "Privileged register"; break;
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#endif
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#ifdef ILL_COPROC
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case ILL_COPROC: si_code_str = "Coprocessor error"; break;
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#endif
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#ifdef ILL_BADSTK
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case ILL_BADSTK: si_code_str = "Internal stack error"; break;
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#endif
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}
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break;
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case SIGFPE:
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switch (info->si_code)
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{
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#ifdef FPE_INTDIV
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case FPE_INTDIV: si_code_str = "Integer divide-by-zero"; break;
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#endif
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#ifdef FPE_INTOVF
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case FPE_INTOVF: si_code_str = "Integer overflow"; break;
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#endif
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case FPE_FLTDIV: si_code_str = "Floating point divide-by-zero"; break;
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case FPE_FLTOVF: si_code_str = "Floating point overflow"; break;
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case FPE_FLTUND: si_code_str = "Floating point underflow"; break;
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case FPE_FLTRES: si_code_str = "Floating point inexact result"; break;
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case FPE_FLTINV: si_code_str = "Invalid floating point operation"; break;
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#ifdef FPE_FLTSUB
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case FPE_FLTSUB: si_code_str = "Subscript out of range"; break;
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#endif
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}
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break;
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case SIGSEGV:
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switch (info->si_code)
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{
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#ifdef SEGV_MAPERR
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case SEGV_MAPERR: si_code_str = "Address not mapped"; break;
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#endif
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#ifdef SEGV_ACCERR
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case SEGV_ACCERR: si_code_str = "Invalid permissions"; break;
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#endif
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}
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break;
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case SIGBUS:
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switch (info->si_code)
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{
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#ifdef BUS_ADRALN
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case BUS_ADRALN: si_code_str = "Invalid address alignment"; break;
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#endif
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#ifdef BUSADRERR
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case BUS_ADRERR: si_code_str = "Non-existent physical address"; break;
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#endif
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#ifdef BUS_OBJERR
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case BUS_OBJERR: si_code_str = "Objet-specific hardware error"; break;
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#endif
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}
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break;
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case SIGTRAP:
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switch (info->si_code)
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{
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#ifdef TRAP_BRKPT
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case TRAP_BRKPT: si_code_str = "Process breakpoint"; break;
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#endif
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#ifdef TRAP_TRACE
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case TRAP_TRACE: si_code_str = "Process trace trap"; break;
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#endif
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}
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break;
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case SIGCHLD:
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switch (info->si_code)
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{
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#ifdef CLD_EXITED
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case CLD_EXITED: si_code_str = "Child has exited"; break;
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#endif
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#ifdef CLD_KILLED
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case CLD_KILLED: si_code_str = "Child has terminated abnormally and did not create a core file"; break;
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#endif
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#ifdef CLD_DUMPED
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case CLD_DUMPED: si_code_str = "Child has terminated abnormally and created a core file"; break;
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#endif
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#ifdef CLD_WTRAPPED
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case CLD_TRAPPED: si_code_str = "Traced child has trapped"; break;
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#endif
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#ifdef CLD_STOPPED
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case CLD_STOPPED: si_code_str = "Child has stopped"; break;
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#endif
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#ifdef CLD_CONTINUED
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case CLD_CONTINUED: si_code_str = "Stopped child has continued"; break;
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#endif
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}
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break;
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#ifdef SIGPOLL
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case SIGPOLL:
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switch (info->si_code)
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{
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#ifdef POLL_IN
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case POLL_IN: si_code_str = "Data input available"; break;
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#endif
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#ifdef POLL_OUT
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case POLL_OUT: si_code_str = "Output buffers available"; break;
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#endif
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#ifdef POLL_MSG
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case POLL_MSG: si_code_str = "Input message available"; break;
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#endif
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#ifdef POLL_ERR
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case POLL_ERR: si_code_str = "I/O error"; break;
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#endif
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#ifdef POLL_PRI
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case POLL_PRI: si_code_str = "High priority input available"; break;
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#endif
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#ifdef POLL_HUP
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case POLL_HUP: si_code_str = "Device disconnected"; break;
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#endif
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}
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break;
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#endif /* SIGPOLL */
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default:
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switch (info->si_code)
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{
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#ifdef SI_ASYNCNL
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case SI_ASYNCNL: si_code_str = "SI_ASYNCNL"; break;
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#endif
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#ifdef SI_SIGIO
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case SI_SIGIO: si_code_str = "Queued SIGIO"; break;
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#endif
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#ifdef SI_ASYNCIO
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case SI_ASYNCIO: si_code_str = "Asynchronous I/O request completed"; break;
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#endif
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#ifdef SI_MESGQ
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case SI_MESGQ: si_code_str = "Message queue state changed"; break;
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#endif
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case SI_TIMER: si_code_str = "Timer expiration"; break;
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case SI_QUEUE: si_code_str = "Sigqueue() signal"; break;
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case SI_USER: si_code_str = "User function (kill, sigsend, abort, etc.)"; break;
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#ifdef SI_KERNEL
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case SI_KERNEL: si_code_str = "Kernel signal"; break;
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#endif
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#ifdef SI_UNDEFINED
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case SI_UNDEFINED: si_code_str = "Undefined code"; break;
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#endif
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}
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}
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/* print signal errno information */
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if (0 != info->si_errno) {
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ret = snprintf(tmp, size, HOSTFORMAT "Associated errno: %s (%d)\n",
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stacktrace_hostname, getpid(),
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strerror (info->si_errno), info->si_errno);
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size -= ret;
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tmp += ret;
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}
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ret = snprintf(tmp, size, HOSTFORMAT "Signal code: %s (%d)\n",
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stacktrace_hostname, getpid(),
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si_code_str, info->si_code);
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size -= ret;
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tmp += ret;
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switch (signo)
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{
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case SIGILL:
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case SIGFPE:
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case SIGSEGV:
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case SIGBUS:
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{
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ret = snprintf(tmp, size, HOSTFORMAT "Failing at address: %p\n",
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stacktrace_hostname, getpid(), info->si_addr);
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size -= ret;
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tmp += ret;
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break;
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}
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case SIGCHLD:
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{
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ret = snprintf(tmp, size, HOSTFORMAT "Sending PID: %d, Sending UID: %d, Status: %d\n",
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stacktrace_hostname, getpid(),
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info->si_pid, info->si_uid, info->si_status);
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size -= ret;
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tmp += ret;
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break;
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}
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#ifdef SIGPOLL
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case SIGPOLL:
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{
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#ifdef HAVE_SIGINFO_T_SI_FD
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ret = snprintf(tmp, size, HOSTFORMAT "Band event: %ld, File Descriptor : %d\n",
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stacktrace_hostname, getpid(), info->si_band, info->si_fd);
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#elif HAVE_SIGINFO_T_SI_BAND
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ret = snprintf(tmp, size, HOSTFORMAT "Band event: %ld\n",
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stacktrace_hostname, getpid(), info->si_band);
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#else
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ret = 0;
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#endif
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size -= ret;
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tmp += ret;
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break;
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}
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#endif
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}
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} else {
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ret = snprintf(tmp, size,
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HOSTFORMAT "siginfo is NULL, additional information unavailable\n",
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stacktrace_hostname, getpid());
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size -= ret;
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tmp += ret;
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}
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/* write out the signal information generated above */
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write(fileno(stderr), print_buffer, sizeof(print_buffer)-size);
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fflush(stderr);
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/* print out the stack trace */
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ret = opal_backtrace_buffer(&traces, &traces_size);
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if (OPAL_SUCCESS == ret) {
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int i;
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/* since we have the opportunity, strip off the bottom two
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function calls, which will be this function and
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opa_backtrace_buffer(). */
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for (i = 2 ; i < traces_size ; ++i) {
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ret = snprintf(print_buffer, sizeof(print_buffer),
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HOSTFORMAT "[%2d] %s\n",
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stacktrace_hostname, getpid(), i - 2, traces[i]);
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write(fileno(stderr), print_buffer, ret);
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}
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} else {
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opal_backtrace_print(stderr);
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}
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/* write out the footer information */
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memset (print_buffer, 0, sizeof (print_buffer));
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ret = snprintf(print_buffer, sizeof(print_buffer),
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HOSTFORMAT "*** End of error message ***\n",
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stacktrace_hostname, getpid());
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write(fileno(stderr), print_buffer, ret);
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fflush(stderr);
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}
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#endif /* OMPI_WANT_PRETTY_PRINT_STACKTRACE && ! defined(__WINDOWS__) */
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/**
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* Here we register the opal_show_stackframe function for signals
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* passed to OpenMPI by the mpi_signal-parameter passed to mpirun
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* by the user.
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*
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* @returnvalue OPAL_SUCCESS
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* @returnvalue OPAL_ERR_BAD_PARAM if the value in the signal-list
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* is not a valid signal-number
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*
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*/
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int opal_util_register_stackhandlers (void)
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{
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#if OMPI_WANT_PRETTY_PRINT_STACKTRACE && ! defined(__WINDOWS__)
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struct sigaction act;
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char * string_value;
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char * tmp;
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char * next;
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int param, i;
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gethostname(stacktrace_hostname, sizeof(stacktrace_hostname));
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stacktrace_hostname[sizeof(stacktrace_hostname) - 1] = '\0';
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/* to keep these somewhat readable, only print the machine name */
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for (i = 0 ; i < (int)sizeof(stacktrace_hostname) ; ++i) {
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if (stacktrace_hostname[i] == '.') {
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stacktrace_hostname[i] = '\0';
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break;
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}
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}
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param = mca_base_param_find ("opal", NULL, "signal");
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mca_base_param_lookup_string (param, &string_value);
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memset(&act, 0, sizeof(act));
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act.sa_sigaction = opal_show_stackframe;
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act.sa_flags = SA_SIGINFO;
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#ifdef SA_ONESHOT
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act.sa_flags |= SA_ONESHOT;
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#else
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act.sa_flags |= SA_RESETHAND;
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#endif
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for (tmp = next = string_value ;
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next != NULL && *next != '\0';
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tmp = next + 1)
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{
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int sig;
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int ret;
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sig = strtol (tmp, &next, 10);
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/*
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* If there is no sensible number in the string, exit.
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* Similarly for any number which is not in the signal-number range
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*/
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if (((0 == sig) && (tmp == next)) || (0 > sig) || (_NSIG <= sig)) {
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return OPAL_ERR_BAD_PARAM;
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}
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if ((next == NULL) || ((*next != ',') && (*next != '\0'))) {
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return OPAL_ERR_BAD_PARAM;
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}
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ret = sigaction (sig, &act, NULL);
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if (ret != 0) {
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return OPAL_ERR_IN_ERRNO;
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}
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}
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free(string_value);
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#endif /* OMPI_WANT_PRETTY_PRINT_STACKTRACE && ! defined(__WINDOWS__) */
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return OPAL_SUCCESS;
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}
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