gdb/gdb_gcore.sh

   1 #!/bin/sh
   2
   3 #   Copyright 2003  Free Software Foundation, Inc.
   4
   5 # This program is free software; you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 2 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program; if not, write to the Free Software
  17 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18
  19 # Please email any bugs, comments, and/or additions to this file to:
  20 # bug-gdb@prep.ai.mit.edu
  21
  22 #
  23 # gcore.sh
  24 # Script to generate a core file of a running program.
  25 # It starts up gdb, attaches to the given PID and invokes the gcore command.
  26 #
  27
  28 if [ "$#" -eq "0" ]
  29 then
  30     echo "usage:  gcore [-o filename] pid"
  31     exit 2
  32 fi
  33
  34 # Need to check for -o option, but set default basename to "core".
  35 name=core
  36
  37 if [ "$1" = "-o" ]
  38 then
  39     if [ "$#" -lt "3" ]
  40     then
  41         # Not enough arguments.
  42         echo "usage:  gcore [-o filename] pid"
  43         exit 2
  44     fi
  45     name=$2
  46
  47     # Shift over to start of pid list
  48     shift; shift
  49 fi
  50
  51 # Initialise return code.
  52 rc=0
  53
  54 # Loop through pids
  55 for pid in $*
  56 do
  57         # Write gdb script for pid $pid.
  58
  59         # Avoid need for temporary files by using funky "here
  60         # document" feature of sh.
  61
  62         /usr/bin/gdb > /dev/null << EOF
  63         attach $pid
  64         gcore $name.$pid
  65         detach
  66         quit
  67 EOF
  68
  69         if [ -r $name.$pid ] ; then
  70             rc=0
  71         else
  72             echo gcore: failed to create $name.$pid
  73             rc=1
  74             break
  75         fi
  76
  77
  78 done
  79
  80 exit $rc
  81