| 1 | #!/bin/sh |
| 2 | |
| 3 | # Copyright (C) 2003, 2005, 2007, 2008, 2009 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 3 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, see <http://www.gnu.org/licenses/>. |
| 17 | |
| 18 | # |
| 19 | # gcore.sh |
| 20 | # Script to generate a core file of a running program. |
| 21 | # It starts up gdb, attaches to the given PID and invokes the gcore command. |
| 22 | # |
| 23 | |
| 24 | if [ "$#" -eq "0" ] |
| 25 | then |
| 26 | echo "usage: gcore [-o filename] pid" |
| 27 | exit 2 |
| 28 | fi |
| 29 | |
| 30 | # Need to check for -o option, but set default basename to "core". |
| 31 | name=core |
| 32 | |
| 33 | if [ "$1" = "-o" ] |
| 34 | then |
| 35 | if [ "$#" -lt "3" ] |
| 36 | then |
| 37 | # Not enough arguments. |
| 38 | echo "usage: gcore [-o filename] pid" |
| 39 | exit 2 |
| 40 | fi |
| 41 | name=$2 |
| 42 | |
| 43 | # Shift over to start of pid list |
| 44 | shift; shift |
| 45 | fi |
| 46 | |
| 47 | # Create a temporary file. Use mktemp if available, but cope if it is not. |
| 48 | tmpfile=`mktemp ${name}.XXXXXX 2>/dev/null` || { |
| 49 | tmpfile=${name}.$$ |
| 50 | if test -e $tmpfile; then |
| 51 | echo "Could not create temporary file $tmpfile" |
| 52 | exit 1 |
| 53 | fi |
| 54 | touch $tmpfile |
| 55 | } |
| 56 | trap "rm -f $tmpfile" EXIT |
| 57 | |
| 58 | # Initialise return code. |
| 59 | rc=0 |
| 60 | |
| 61 | # Loop through pids |
| 62 | for pid in $* |
| 63 | do |
| 64 | # Write gdb script for pid $pid. |
| 65 | cat >>$tmpfile <<EOF |
| 66 | attach $pid |
| 67 | gcore $name.$pid |
| 68 | detach |
| 69 | quit |
| 70 | EOF |
| 71 | |
| 72 | gdb -x $tmpfile -batch |
| 73 | |
| 74 | if [ -r $name.$pid ] ; then |
| 75 | rc=0 |
| 76 | else |
| 77 | echo gcore: failed to create $name.$pid |
| 78 | rc=1 |
| 79 | break |
| 80 | fi |
| 81 | |
| 82 | |
| 83 | done |
| 84 | |
| 85 | exit $rc |