gistfile1.sh

# modified backtrace function (uses core file) courtesy of:
# http://blog.cryptomilk.org/2010/12/23/gdb-backtrace-to-file/
bt()
{
    echo 0 | \
    gdb -batch-silent \
        -ex "core-file core" \
        -ex "set logging overwrite on" \
        -ex "set logging file gdb.bt" \
        -ex "set logging on" \
        -ex "set pagination off" \
        -ex "handle SIG33 pass nostop noprint" \
        -ex "echo backtrace:\n" \
        -ex "backtrace full" \
        -ex "echo \n\nregisters:\n" \
        -ex "info registers" \
        -ex "echo \n\ncurrent instructions:\n" \
        -ex "x/16i \$pc" \
        -ex "echo \n\nthreads backtrace:\n" \
        -ex "thread apply all backtrace" \
        -ex "set logging off" \
        -ex "quit" "$@"
}