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|
#!/bin/sh
BASENAME=`basename $0`
if [ -n "$VALGRIND" -o -n "$SMBD_VALGRIND" ]; then
echo "${BASENAME}: Not running debugger under valgrind"
exit 1
fi
# we want everything on stderr, so the program is not disturbed
exec 1>&2
BASENAME=`basename $0`
UNAME=`uname`
PID=$1
BINARY=$2
test x"${PID}" = x"" && {
echo "Usage: ${BASENAME} <pid> [<binary>]"
exit 1
}
DB_LIST="gdb"
case "${UNAME}" in
#
# on Tru64 we need to try ladebug first
# because gdb crashes itself...
#
OSF1)
DB_LIST="ladebug ${DB_LIST}"
;;
#
# On solaris dbx is working way more better than gdb
# let's try it first
#
SunOS)
DB_LIST="dbx ${DB_LIST}"
;;
esac
for DB in ${DB_LIST}; do
DB_BIN=`which ${DB} 2>/dev/null | grep '^/'`
test x"${DB_BIN}" != x"" && {
break
}
done
test x"${DB_BIN}" = x"" && {
echo "${BASENAME}: ERROR: No debugger found."
exit 1
}
#
# we first try to use /proc/${PID}/exe or /proc/{$PID}/path for solaris
# then fallback to the binary from the commandline
# then we search for the commandline argument with
# 'which'
#
test -f "/proc/${PID}/exe" && BINARY="/proc/${PID}/exe"
test -f "/proc/${PID}/path/a.out" && BINARY=`ls -l /proc/${PID}/path/a.out |sed 's/.*-> //'`
test x"${BINARY}" = x"" && BINARY="/proc/${PID}/exe"
test -f "${BINARY}" || BINARY=`which ${BINARY}`
test -f "${BINARY}" || {
echo "${BASENAME}: ERROR: Cannot find binary '${BINARY}'."
exit 1
}
echo "${BASENAME}: Trying to use ${DB_BIN} on ${BINARY} on PID ${PID}"
BATCHFILE_PRE=/tmp/gdb_backtrace_pre.$$
BATCHFILE_MAIN=/tmp/gdb_backtrace_main.$$
case "${DB}" in
ladebug)
cat << EOF > ${BATCHFILE_PRE}
set \$stoponattach
EOF
cat << EOF > ${BATCHFILE_MAIN}
where
quit
EOF
${DB_BIN} -c "${BATCHFILE_MAIN}" -i "${BATCHFILE_PRE}" -pid "${PID}" "${BINARY}"
;;
gdb)
cat << EOF > ${BATCHFILE_MAIN}
set height 1000
bt full
info locals
quit
EOF
${DB_BIN} -x "${BATCHFILE_MAIN}" "${BINARY}" "${PID}"
;;
dbx)
${DB_BIN} "where;dump;kill;quit" "${BINARY}" "${PID}"
;;
esac
/bin/rm -f ${BATCHFILE_PRE} ${BATCHFILE_MAIN}
|
