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#! /bin/sh
#
# Author: Andrew Tridgell <tridge at samba dot org>
# we want everything on stderr, so the program is not disturbed
exec 1>&2
BASENAME=$( basename $0)
test -z ${GDB_BIN} && GDB_BIN=$( type -p gdb)
if [ -z ${GDB_BIN} ]; then
echo "ERROR: ${BASENAME} needs an installed gdb. "
exit 1
fi
if [ -z $1 ]; then
echo "ERROR: ${BASENAME} needs a PID. "
exit 1
fi
PID=$1
# use /dev/shm as default temp directory
test -d /dev/shm && \
TMP_BASE_DIR=/dev/shm || \
TMP_BASE_DIR=/var/tmp
TMPFILE=$( mktemp -p ${TMP_BASE_DIR} backtrace.XXXXXX)
if [ $? -ne 0 ]; then
echo "ERROR: ${basename} can't create temp file in ${TMP_BASE_DIR}. "
exit 1
fi
cat << EOF > "${TMPFILE}"
set height 0
up 8
bt full
quit
EOF
${GDB_BIN} -x "${TMPFILE}" "/proc/${PID}/exe" "${PID}"
/bin/rm -f "${TMPFILE}"
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