contrib/ofed/management/libibcommon/src/stack.c

   1 /*
   2  * Copyright (c) 2004,2005 Voltaire Inc.  All rights reserved.
   3  *
   4  * This software is available to you under a choice of one of two
   5  * licenses.  You may choose to be licensed under the terms of the GNU
   6  * General Public License (GPL) Version 2, available from the file
   7  * COPYING in the main directory of this source tree, or the
   8  * OpenIB.org BSD license below:
   9  *
  10  *     Redistribution and use in source and binary forms, with or
  11  *     without modification, are permitted provided that the following
  12  *     conditions are met:
  13  *
  14  *      - Redistributions of source code must retain the above
  15  *        copyright notice, this list of conditions and the following
  16  *        disclaimer.
  17  *
  18  *      - Redistributions in binary form must reproduce the above
  19  *        copyright notice, this list of conditions and the following
  20  *        disclaimer in the documentation and/or other materials
  21  *        provided with the distribution.
  22  *
  23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  30  * SOFTWARE.
  31  *
  32  */
  33
  34 #define _GNU_SOURCE
  35
  36 #if HAVE_CONFIG_H
  37 #  include <config.h>
  38 #endif /* HAVE_CONFIG_H */
  39
  40 #include <inttypes.h>
  41 #include <string.h>
  42 #include <errno.h>
  43 #include <stdio.h>
  44 #include <stdlib.h>
  45 #include <unistd.h>
  46 #include <stdarg.h>
  47 #include <sys/types.h>
  48 #include <sys/stat.h>
  49 #include <fcntl.h>
  50 #include <sys/ioctl.h>
  51 #include <unistd.h>
  52 #include <string.h>
  53 #include <endian.h>
  54 #include <byteswap.h>
  55 #include <sys/poll.h>
  56 #include <syslog.h>
  57 #include <time.h>
  58 #include <signal.h>
  59
  60 #include "common.h"
  61
  62 static int loop_on_panic;
  63
  64 void
  65 stack_dump(void)
  66 {
  67         if (!__builtin_frame_address(1))
  68                 return
  69         syslog(LOG_ALERT, "#1 %p\n", __builtin_return_address(1));
  70
  71         if (!__builtin_frame_address(2))
  72                 return
  73         syslog(LOG_ALERT, "#2 %p\n", __builtin_return_address(2));
  74
  75         if (!__builtin_frame_address(3))
  76                 return
  77         syslog(LOG_ALERT, "#3 %p\n", __builtin_return_address(3));
  78
  79         if (!__builtin_frame_address(4))
  80                 return
  81         syslog(LOG_ALERT, "#4 %p\n", __builtin_return_address(4));
  82
  83         if (!__builtin_frame_address(5))
  84                 return
  85         syslog(LOG_ALERT, "#5 %p\n", __builtin_return_address(5));
  86
  87         if (!__builtin_frame_address(6))
  88                 return
  89         syslog(LOG_ALERT, "#6 %p\n", __builtin_return_address(6));
  90
  91         if (!__builtin_frame_address(7))
  92                 return
  93         syslog(LOG_ALERT, "#7 %p\n", __builtin_return_address(7));
  94
  95         if (!__builtin_frame_address(8))
  96                 return
  97         syslog(LOG_ALERT, "#8 %p\n", __builtin_return_address(8));
  98
  99         if (!__builtin_frame_address(9))
 100                 return
 101         syslog(LOG_ALERT, "#9 %p\n", __builtin_return_address(9));
 102
 103         if (!__builtin_frame_address(10))
 104                 return
 105         syslog(LOG_ALERT, "#10 %p\n", __builtin_return_address(10));
 106
 107         if (!__builtin_frame_address(11))
 108                 return
 109         syslog(LOG_ALERT, "#11 %p\n", __builtin_return_address(11));
 110
 111         if (!__builtin_frame_address(12))
 112                 return
 113         syslog(LOG_ALERT, "#12 %p\n", __builtin_return_address(12));
 114
 115         if (!__builtin_frame_address(13))
 116                 return
 117         syslog(LOG_ALERT, "#13 %p\n", __builtin_return_address(13));
 118
 119         if (!__builtin_frame_address(14))
 120                 return
 121         syslog(LOG_ALERT, "#14 %p\n", __builtin_return_address(14));
 122
 123         if (!__builtin_frame_address(15))
 124                 return
 125         syslog(LOG_ALERT, "#15 %p\n", __builtin_return_address(15));
 126
 127         if (!__builtin_frame_address(16))
 128                 return
 129         syslog(LOG_ALERT, "#16 %p\n", __builtin_return_address(16));
 130
 131         if (!__builtin_frame_address(17))
 132                 return
 133         syslog(LOG_ALERT, "#17 %p\n", __builtin_return_address(17));
 134
 135         if (!__builtin_frame_address(18))
 136                 return
 137         syslog(LOG_ALERT, "#18 %p\n", __builtin_return_address(18));
 138 }
 139
 140 static void
 141 handler(int x)
 142 {
 143         static int in;
 144         time_t  tm;
 145
 146         if (!in) {
 147                 in++;
 148
 149                 syslog(LOG_ALERT, "*** exception handler: died with signal %d", x);
 150                 stack_dump();
 151
 152                 fflush(NULL);
 153
 154                 tm = time(0);
 155                 fprintf(stderr, "%s *** exception handler: died with signal %d pid %d\n",
 156                                 ctime(&tm), x, getpid());
 157
 158                 fflush(NULL);
 159         }
 160
 161         if (loop_on_panic) {
 162                 fprintf(stderr, "exception handler: entering tight loop ... pid %d\n",getpid());
 163                 for (; ; )
 164                         ;
 165         }
 166
 167         signal(x, SIG_DFL);
 168 }
 169
 170 void
 171 enable_stack_dump(int loop)
 172 {
 173         loop_on_panic = loop;
 174         signal(SIGILL, handler);
 175         signal(SIGBUS, handler);
 176         signal(SIGSEGV, handler);
 177         signal(SIGABRT, handler);
 178 }