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perf archive: Add new option '--unpack' to expand tarballs 

Archives generated by the command 'perf archive' have to be unpacked
manually.

Following the addition of option '--all' now there also exist a nested
structure of tars, and after further discussion with Red Hat Global
Support Services, they found a feature correctly unpacking archives of
'perf archive' convenient.

Option '--unpack' of 'perf archive' unpacks archives generated by the
command 'perf archive' as well as archives generated when used with
option '--all'.

The 'perf.data' file is placed in the current directory, while debug
symbols are unpacked in '~/.debug' directory. A tar filename can be
passed as an argument, and if not provided the command tries to find a
viable perf.tar file for unpacking.

Signed-off-by: Veronika Molnarova <vmolnaro@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Link: https://lore.kernel.org/r/20231212165909.14459-2-vmolnaro@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Veronika Molnarova 2023-12-12 17:59:09 +01:00 committed by Arnaldo Carvalho de Melo
parent 624dda101e
commit e43c64c971
1 changed files with 58 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

66
tools/perf/perf-archive.sh
View File

@ -7,17 +7,72 @@ PERF_DATA=perf.data
PERF_SYMBOLS=perf.symbols
PERF_ALL=perf.all
ALL=0
UNPACK=0
while [ $# -gt 0 ] ; do
if [ $1 == "--all" ]; then
ALL=1
shift
elif [ $1 == "--unpack" ]; then
UNPACK=1
shift
else
PERF_DATA=$1
UNPACK_TAR=$1
shift
fi
done
if [ $UNPACK -eq 1 ]; then
if [ ! -z "$UNPACK_TAR" ]; then # tar given as an argument
if [ ! -e "$UNPACK_TAR" ]; then
echo "Provided file $UNPACK_TAR does not exist"
exit 1
fi
TARGET="$UNPACK_TAR"
else # search for perf tar in the current directory
TARGET=`find . -regex "\./perf.*\.tar\.bz2"`
TARGET_NUM=`echo -n "$TARGET" | grep -c '^'`
if [ -z "$TARGET" -o $TARGET_NUM -gt 1 ]; then
echo -e "Error: $TARGET_NUM files found for unpacking:\n$TARGET"
echo "Provide the requested file as an argument"
exit 1
else
echo "Found target file for unpacking: $TARGET"
fi
fi
if [[ "$TARGET" =~ (\./)?$PERF_ALL.*.tar.bz2 ]]; then # perf tar generated by --all option
TAR_CONTENTS=`tar tvf "$TARGET" | tr -s " " | cut -d " " -f 6`
VALID_TAR=`echo "$TAR_CONTENTS" | grep "$PERF_SYMBOLS.tar.bz2" | wc -l` # check if it contains a sub-tar perf.symbols
if [ $VALID_TAR -ne 1 ]; then
echo "Error: $TARGET file is not valid (contains zero or multiple sub-tar files with debug symbols)"
exit 1
fi
INTERSECT=`comm -12 <(ls) <(echo "$TAR_CONTENTS") | tr "\n" " "` # check for overwriting
if [ ! -z "$INTERSECT" ]; then # prompt if file(s) already exist in the current directory
echo "File(s) ${INTERSECT::-1} already exist in the current directory."
while true; do
read -p 'Do you wish to overwrite them? ' yn
case $yn in
[Yy]* ) break;;
[Nn]* ) exit 1;;
* ) echo "Please answer yes or no.";;
esac
done
fi
# unzip the perf.data file in the current working directory and debug symbols in ~/.debug directory
tar xvf $TARGET && tar xvf $PERF_SYMBOLS.tar.bz2 -C ~/.debug
else # perf tar generated by perf archive (contains only debug symbols)
tar xvf $TARGET -C ~/.debug
fi
exit 0
fi
#
# PERF_BUILDID_DIR environment variable set by perf
# path to buildid directory, default to $HOME/.debug
@ -55,17 +110,12 @@ if [ $ALL -eq 1 ]; then # pack perf.data file together with tar containing
tar cjf $PERF_SYMBOLS.tar.bz2 -C $PERF_BUILDID_DIR -T $MANIFEST
tar cjf $PERF_ALL-$HOSTNAME-$DATE.tar.bz2 $PERF_DATA $PERF_SYMBOLS.tar.bz2
rm $PERF_SYMBOLS.tar.bz2 $MANIFEST $BUILDIDS || true
echo -e "Now please run:\n"
echo -e "$ tar xvf $PERF_ALL-$HOSTNAME-$DATE.tar.bz2 && tar xvf $PERF_SYMBOLS.tar.bz2 -C ~/.debug\n"
echo "wherever you need to run 'perf report' on."
else # pack only the debug symbols
tar cjf $PERF_DATA.tar.bz2 -C $PERF_BUILDID_DIR -T $MANIFEST
rm $MANIFEST $BUILDIDS || true
echo -e "Now please run:\n"
echo -e "$ tar xvf $PERF_DATA.tar.bz2 -C ~/.debug\n"
echo "wherever you need to run 'perf report' on."
fi
echo -e "Now please run:\n"
echo -e "$ perf archive --unpack\n"
echo "or unpack the tar manually wherever you need to run 'perf report' on."
exit 0