diff options
Diffstat (limited to 'extras')
| -rwxr-xr-x | extras/devel-tools/print-backtrace.sh | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/extras/devel-tools/print-backtrace.sh b/extras/devel-tools/print-backtrace.sh new file mode 100755 index 00000000000..873b6bc692d --- /dev/null +++ b/extras/devel-tools/print-backtrace.sh @@ -0,0 +1,94 @@ +#!/bin/bash +# sample unresolved backtrace lines picked up from a brick log that should go +# into a backtrace file eg. bt-file.txt: +# /usr/lib64/glusterfs/3.8.4/xlator/cluster/replicate.so(+0x3ec81)[0x7fe4bc271c81] +# /usr/lib64/glusterfs/3.8.4/xlator/cluster/replicate.so(+0x3eecd)[0x7fe4bc271ecd] +# /usr/lib64/glusterfs/3.8.4/xlator/cluster/replicate.so(+0x404cb)[0x7fe4bc2734cb] +# /usr/lib64/glusterfs/3.8.4/xlator/cluster/replicate.so(+0x3d2b6)[0x7fe4bc2702b6] +# /usr/lib64/glusterfs/3.8.4/xlator/cluster/replicate.so(+0x3d323)[0x7fe4bc270323] +# +# following is the output of the script for the above backtrace lines: +# /usr/lib64/glusterfs/3.8.4/xlator/cluster/replicate.so(+0x3ec81)[0x7fe4bc271c81] __afr_selfheal_data_finalize_source inlined at /usr/src/debug/glusterfs-3.8.4/xlators/cluster/afr/src/afr-self-heal-data.c:684 in __afr_selfheal_data_prepare /usr/src/debug/glusterfs-3.8.4/xlators/cluster/afr/src/afr-self-heal-data.c:603 +# /usr/lib64/glusterfs/3.8.4/xlator/cluster/replicate.so(+0x3eecd)[0x7fe4bc271ecd] __afr_selfheal_data /usr/src/debug/glusterfs-3.8.4/xlators/cluster/afr/src/afr-self-heal-data.c:740 +# /usr/lib64/glusterfs/3.8.4/xlator/cluster/replicate.so(+0x404cb)[0x7fe4bc2734cb] afr_selfheal_data /usr/src/debug/glusterfs-3.8.4/xlators/cluster/afr/src/afr-self-heal-data.c:883 +# /usr/lib64/glusterfs/3.8.4/xlator/cluster/replicate.so(+0x3d2b6)[0x7fe4bc2702b6] afr_selfheal_do /usr/src/debug/glusterfs-3.8.4/xlators/cluster/afr/src/afr-self-heal-common.c:1968 +# /usr/lib64/glusterfs/3.8.4/xlator/cluster/replicate.so(+0x3d323)[0x7fe4bc270323] afr_selfheal /usr/src/debug/glusterfs-3.8.4/xlators/cluster/afr/src/afr-self-heal-common.c:2015 +# +# Usage with debuginfo RPM: +# print-backtrace.sh $HOME/Downloads/glusterfs-debuginfo-3.8.4-10.el7.x86_64.rpm bt-file.txt +# +# Usage with source install: +# print-packtrace.sh none bt-file.txt + +function Usage() +{ + echo -e "Usage:\n\t$0 { none | <debuginfo-rpm> } <backtrace-file>" + echo "none: implies we don't have a debuginfo rpm but want to resolve" + echo " against a source install which already has the debuginfo" + echo " NOTE: in this case you should have configured the build" + echo " with --enable-debug and the linker options should" + echo " have the option -rdynamic" +} + +debuginfo_rpm=$1 +backtrace_file=$2 + +if [ ! $debuginfo_rpm ] || [ ! $backtrace_file ]; then + Usage + exit 1 +fi + +if [ $debuginfo_rpm != "none" ] && [ ! -f $debuginfo_rpm ]; then + echo "no such rpm file: $debuginfo_rpm" + exit 1 +fi + +if [ ! -f $backtrace_file ]; then + echo "no such backtrace file: $backtrace_file" + exit 1 +fi + +if ! file $debuginfo_rpm | grep RPM >/dev/null 2>&1 ; then + echo "file does not look like an rpm: $debuginfo_rpm" + exit 1 +fi + +rpm_name="" +debuginfo_path="" +debuginfo_extension="" + +if [ $debuginfo_rpm != "none" ]; then + # extract the gluster debuginfo rpm to resolve the symbols against + rpm_name=$(basename $debuginfo_rpm '.rpm') + if [ -d $rpm_name ]; then + echo "directory already exists: $rpm_name" + echo "please remove/move it and reattempt" + exit 1 + fi + mkdir -p $rpm_name + rpm2cpio $debuginfo_rpm | cpio --quiet --extract --make-directories --preserve-modification-time --directory=$rpm_name + + debuginfo_path="$PWD/$rpm_name/usr/lib/debug" + debuginfo_extension=".debug" +else + debuginfo_path="" + debuginfo_extension="" +fi + +# NOTE: backtrace file should contain only the lines which need to be resolved +for bt in $(grep glusterfs $backtrace_file) +do + libname=$(echo $bt | cut -f 1 -d '(') + addr=$(echo $bt | cut -f 2 -d '(' | cut -f 1 -d ')') + # only unresolved addresses start with a '+' + if echo $addr | egrep '^\+' >/dev/null 2>&1 ; then + newbt=( $(eu-addr2line --functions --exe=${debuginfo_path}${libname}${debuginfo_extension} $addr) ) + echo "$bt ${newbt[*]}" + fi +done + +# remove the temporary directory +if [ -d $rpm_name ]; then + rm -rf $rpm_name +fi + |