~dbpercona/percona-qa/readme

#!/bin/bash

# Created by Roel Van de Paar, Percona LLC

# This script analyzes core files in subdirectories and writes output to gdb_<core file name>_STD/_FULL.txt

if [ "$1" == "" ]; then

  echo "This script analyzes core files in subdirectories and writes output to gdb_<core file name>_STD/_FULL.txt."

  echo "It expects one parameter: a full path pointer to the binary used to generate these core dumps. For example:"

  echo "$ cd my_work_dir; <your_percona-qa_path>/analyze_subdir_cores.sh /ssd/Percona-Server-5.6.14-rel62.0-508-debug.Linux.x86_64/bin/mysqld"

  exit 1

else

  BIN=$1

fi

for CORE in $(find . | grep "core.*") ; do

  # For debugging purposes, remove ">/dev/null 2>&1" on the next line and observe output

  COREFILE=$(echo $CORE | sed 's|data.\([0-9]*\).|core_data.\1_|' | sed 's|.*core|core|')

  gdb ${BIN} ${CORE} >/dev/null 2>&1 <<EOF

    # Avoids libary loading issues / more manual work, see bash$ info "(gdb)Auto-loading safe path"

    set auto-load safe-path /         

    # See http://sourceware.org/gdb/onlinedocs/gdb/Threads.html - this avoids the following issue:

    # "warning: unable to find libthread_db matching inferior's threadlibrary, thread debugging will not be available"

    set libthread-db-search-path /usr/lib/

    set trace-commands on

    set pagination off

    set print pretty on

    set print array on

    set print array-indexes on

    set print elements 4096

    set logging file gdb_${COREFILE}_FULL.txt

    set logging on

    thread apply all bt full

    set logging off

    set logging file gdb_${COREFILE}_STD.txt

    set logging on

    thread apply all bt

    set logging off

    quit

EOF

done;

echo "Done!"

echo "P.S. To quickly check what the cores are for, use:"

echo 'grep -A 20 "Thread 1 (" *_STD.txt | grep "#[4-6]" | egrep -v "assert|abort"'