/usr/sbin/btraceback is in bareos-common 16.2.4-3+deb9u2.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 | #!/bin/sh
#
# Script to do a stack trace of a Bareos daemon/program
# and create a core-file for postmortem debugging.
#
# We attempt to attach to running program
#
# Arguments to this script are
# $1 = path to executable
# $2 = main pid of running program to be traced back.
# $3 = working directory
#
PNAME="`basename $1`"
WD="$3"
GCORE=""
GDB=""
DBX=""
MDB=""
#
# Try to generate a core dump for postmortem analyzing.
#
POSTMORTEM="NONE"
if [ ! -z "${GCORE}" -a -x "${GCORE}" ]; then
POSTMORTEM="${WD}/${PNAME}.core"
${GCORE} -o ${POSTMORTEM} $2 > /dev/null 2>&1
POSTMORTEM="${POSTMORTEM}.$2"
echo "Created ${POSTMORTEM} for doing postmortem debugging" > ${WD}/bareos.$2.traceback
else
which gcore > /dev/null 2>&1 && GCORE="`which gcore`" || GCORE=''
if [ ! -z "${GCORE}" -a -x "${GCORE}" ]; then
POSTMORTEM="${WD}/${PNAME}.core"
${GCORE} -o ${POSTMORTEM} $2 > /dev/null 2>&1
POSTMORTEM="${POSTMORTEM}.$2"
echo "Created ${POSTMORTEM} for doing postmortem debugging" > ${WD}/bareos.$2.traceback
fi
fi
#
# Try to find out what debugger is available on this platform.
#
if [ ! -z "${DBX}" -a -x "${DBX}" ]; then
DEBUGGER="DBX"
elif [ ! -z "${GDB}" -a -x "${GDB}" ]; then
DEBUGGER="GDB"
elif [ ! -z "${MDB}" -a -x "${MDB}" ]; then
DEBUGGER="MDB"
else
#
# If we fail to find the configured debugger do a last try to find it on the PATH.
#
which gdb > /dev/null 2>&1 && GDB="`which gdb`" || GDB=''
which dbx > /dev/null 2>&1 && DBX="`which dbx`" || DBX=''
which mdb > /dev/null 2>&1 && MDB="`which mdb`" || MDB=''
if [ ! -z "${DBX}" -a -x "${DBX}" ]; then
DEBUGGER="DBX"
elif [ ! -z "${GDB}" -a -x "${GDB}" ]; then
DEBUGGER="GDB"
elif [ ! -z "${MDB}" -a -x "${MDB}" ]; then
DEBUGGER="MDB"
else
DEBUGGER="NONE"
fi
fi
#
# Try to run a debugger on the crashing program or the generated postmortem dump for getting a strack trace.
#
case ${DEBUGGER} in
DBX)
if [ ${POSTMORTEM} != NONE -a -s ${POSTMORTEM} ]; then
${DBX} $1 ${POSTMORTEM} < /usr/lib/bareos/scripts/btraceback.dbx >> ${WD}/bareos.$2.traceback 2>&1
else
${DBX} $1 $2 < /usr/lib/bareos/scripts/btraceback.dbx >> ${WD}/bareos.$2.traceback 2>&1
fi
;;
GDB)
if [ ${POSTMORTEM} != NONE -a -s ${POSTMORTEM} ]; then
${GDB} -quiet -batch -x /usr/lib/bareos/scripts/btraceback.gdb $1 ${POSTMORTEM} >> ${WD}/bareos.$2.traceback 2>&1
else
${GDB} -quiet -batch -x /usr/lib/bareos/scripts/btraceback.gdb $1 $2 >> ${WD}/bareos.$2.traceback 2>&1
fi
;;
MDB)
if [ ${POSTMORTEM} != NONE -a -s ${POSTMORTEM} ]; then
${MDB} -u $1 ${POSTMORTEM} < /usr/lib/bareos/scripts/btraceback.mdb >> ${WD}/bareos.$2.traceback 2>&1
else
${MDB} -u -p $2 < /usr/lib/bareos/scripts/btraceback.mdb >> ${WD}/bareos.$2.traceback 2>&1
fi
;;
NONE)
echo "No debugger available on this platform," \
" please install one to get proper stack traces" >> ${WD}/bareos.$2.traceback
;;
esac
#
# Send the stack trace info to someone for analyzing or at least letting someone know we crashed.
#
PNAME="${PNAME} on `hostname`"
cat ${WD}/bareos.$2.traceback | \
/usr/sbin/bsmtp -h localhost -f root@localhost -s "Bareos ${DEBUGGER} traceback of ${PNAME}" root@localhost
|