| 1 | #!/bin/sh |
| 2 | |
| 3 | # Copyright (C) 2003-2015 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 | # Script to generate a core file of a running program. |
| 20 | # It starts up gdb, attaches to the given PID and invokes the gcore command. |
| 21 | # |
| 22 | |
| 23 | if [ "$#" -eq "0" ] |
| 24 | then |
| 25 | echo "usage: @GCORE_TRANSFORM_NAME@ [-o filename] pid" |
| 26 | exit 2 |
| 27 | fi |
| 28 | |
| 29 | # Need to check for -o option, but set default basename to "core". |
| 30 | name=core |
| 31 | |
| 32 | if [ "$1" = "-o" ] |
| 33 | then |
| 34 | if [ "$#" -lt "3" ] |
| 35 | then |
| 36 | # Not enough arguments. |
| 37 | echo "usage: @GCORE_TRANSFORM_NAME@ [-o filename] pid" |
| 38 | exit 2 |
| 39 | fi |
| 40 | name=$2 |
| 41 | |
| 42 | # Shift over to start of pid list |
| 43 | shift; shift |
| 44 | fi |
| 45 | |
| 46 | # Attempt to fetch the absolute path to the gcore script that was |
| 47 | # called. |
| 48 | binary_path=`dirname "$0"` |
| 49 | |
| 50 | if test "x$binary_path" = x. ; then |
| 51 | # We got "." back as a path. This means the user executed |
| 52 | # the gcore script locally (i.e. ./gcore) or called the |
| 53 | # script via a shell interpreter (i.e. sh gcore). |
| 54 | binary_basename=`basename "$0"` |
| 55 | |
| 56 | # If the gcore script was called like "sh gcore" and the script |
| 57 | # lives in the current directory, "which" will not give us "gcore". |
| 58 | # So first we check if the script is in the current directory |
| 59 | # before using the output of "which". |
| 60 | if test -f "$binary_basename" ; then |
| 61 | # We have a local gcore script in ".". This covers the case of |
| 62 | # doing "./gcore" or "sh gcore". |
| 63 | binary_path="." |
| 64 | else |
| 65 | # The gcore script was not found in ".", which means the script |
| 66 | # was called from somewhere else in $PATH by "sh gcore". |
| 67 | # Extract the correct path now. |
| 68 | binary_path_from_env=`which "$0"` |
| 69 | binary_path=`dirname "$binary_path_from_env"` |
| 70 | fi |
| 71 | fi |
| 72 | |
| 73 | # Check if the GDB binary is in the expected path. If not, just |
| 74 | # quit with a message. |
| 75 | if [ ! -f "$binary_path"/@GDB_TRANSFORM_NAME@ ]; then |
| 76 | echo "gcore: GDB binary (${binary_path}/@GDB_TRANSFORM_NAME@) not found" |
| 77 | exit 1 |
| 78 | fi |
| 79 | |
| 80 | # Initialise return code. |
| 81 | rc=0 |
| 82 | |
| 83 | # Loop through pids |
| 84 | for pid in $* |
| 85 | do |
| 86 | # `</dev/null' to avoid touching interactive terminal if it is |
| 87 | # available but not accessible as GDB would get stopped on SIGTTIN. |
| 88 | $binary_path/@GDB_TRANSFORM_NAME@ </dev/null --nx --batch \ |
| 89 | -ex "set pagination off" -ex "set height 0" -ex "set width 0" \ |
| 90 | -ex "attach $pid" -ex "gcore $name.$pid" -ex detach -ex quit |
| 91 | |
| 92 | if [ -r $name.$pid ] ; then |
| 93 | rc=0 |
| 94 | else |
| 95 | echo "@GCORE_TRANSFORM_NAME@: failed to create $name.$pid" |
| 96 | rc=1 |
| 97 | break |
| 98 | fi |
| 99 | |
| 100 | |
| 101 | done |
| 102 | |
| 103 | exit $rc |