scripts/backtrace-from-core

   1 #!/bin/sh
   2 ##### -*- mode:shell-script; indent-tabs-mode:nil; sh-basic-offset:2 -*-
   3 ##### Author: Travis Cross <tc@traviscross.com>
   4
   5 log1 () { printf '%s' "$1">&2; }
   6 log () { printf '%s\n' "$1">&2; }
   7 err () { log "$1"; exit 1; }
   8
   9 usage () {
  10   local opt="$1" bs="" be=""
  11   $opt && { bs="[ "; be=" ]"; }
  12   log "usage: $0 <corefile> ${bs}<path/to/freeswitch>${be}"
  13 }
  14
  15 while getopts "h" o; do
  16   case "$o" in
  17     h) usage true; exit 0; ;;
  18   esac
  19 done
  20 shift $(($OPTIND-1))
  21
  22
  23 if [ $# -lt 1 ]; then
  24   usage true; exit 1
  25 fi
  26 core="$1"
  27 if ! [ $# -lt 2 ]; then
  28   fspath="$2"
  29   [ -x "$fspath" ] || err "Not executable: $fspath"
  30 fi
  31 btpath="/tmp/$(date -u +%Y%m%dT%H%M%SZ)-bt.txt"
  32 if [ -z "$fspath" ]; then
  33   for x in "$(which freeswitch)" \
  34     /usr/bin/freeswitch /usr/sbin/freeswitch \
  35     /usr/local/bin/freeswitch /usr/local/sbin/freeswitch \
  36     /opt/freeswitch/bin/freeswitch; do
  37     ! [ -x "$x" ] || { fspath="$x"; break; }
  38   done
  39 fi
  40 if [ -z "$fspath" ]; then
  41   log "Couldn't find FS binary"
  42   usage false; exit 1
  43 fi
  44 if test $(id -u) = 0 && test -f /etc/debian_version; then
  45   cat >&2 <<'EOF'
  46 ### You're running on Debian.  Please make sure you have appropriate
  47 ### freeswitch-*-dbg packages installed so we get as many symbols in
  48 ### this backtrace as possible.  I won't install these for you.  If
  49 ### you're running the freeswitch-all package, then you should install
  50 ### freeswitch-all-dbg.
  51 EOF
  52 log ''
  53 fi
  54
  55 log1 'Generating backtrace...'
  56 gdb "$fspath" "$core" > $btpath <<'EOF'
  57 set prompt
  58 set pagination off
  59 printf "\n\n"
  60 printf "================================================================================\n"
  61 printf "# GDB session generated by FS backtrace-from-core\n"
  62 printf "# FreeSWITCH version: %s\n", switch_version_full_str
  63 printf "# FreeSWITCH version (human): %s\n", switch_version_full_human_str
  64 printf "================================================================================\n"
  65 printf "\n\n"
  66 printf "================================================================================\n"
  67 printf "# info threads\n"
  68 printf "================================================================================\n"
  69 info threads
  70 printf "================================================================================\n"
  71 printf "# bt\n"
  72 printf "================================================================================\n"
  73 bt
  74 printf "================================================================================\n"
  75 printf "# bt full\n"
  76 printf "================================================================================\n"
  77 bt full
  78 printf "================================================================================\n"
  79 printf "# thread apply all bt\n"
  80 printf "================================================================================\n"
  81 thread apply all bt
  82 printf "================================================================================\n"
  83 printf "# thread apply all bt full\n"
  84 printf "================================================================================\n"
  85 thread apply all bt full
  86 quit
  87 EOF
  88 log 'done'
  89 log ''
  90 log "Please attach the backtrace here:"
  91 log "$btpath"