devtools: parallelize ABI check
Checks
Commit Message
Generation and comparison of ABI dumps are done on multiple cores
thanks to xargs -P0.
It can accelerate this long step by 5 in my tests.
xargs reports a global error if one of the process has an error.
Running a shell function with xargs requires to export it with -f.
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
---
devtools/check-abi.sh | 33 ++++++++++++++++++++-------------
devtools/gen-abi.sh | 5 +++--
2 files changed, 23 insertions(+), 15 deletions(-)
@@ -34,19 +34,10 @@ else
ABIDIFF_OPTIONS="$ABIDIFF_OPTIONS --headers-dir2 $incdir2"
fi
-error=
-for dump in $(find $refdir -name "*.dump"); do
- name=$(basename $dump)
- dump2=$(find $newdir -name $name)
- if [ -z "$dump2" ] || [ ! -e "$dump2" ]; then
- echo "Error: cannot find $name in $newdir" >&2
- error=1
- continue
- fi
- abidiff $ABIDIFF_OPTIONS $dump $dump2 || {
+run_diff() { # <dump1> <dump2>
+ abidiff $ABIDIFF_OPTIONS $1 $2 || {
abiret=$?
- echo "Error: ABI issue reported for 'abidiff $ABIDIFF_OPTIONS $dump $dump2'" >&2
- error=1
+ echo "Error: ABI issue reported for 'abidiff $ABIDIFF_OPTIONS $1 $2'" >&2
echo
if [ $(($abiret & 3)) -ne 0 ]; then
echo "ABIDIFF_ERROR|ABIDIFF_USAGE_ERROR, this could be a script or environment issue." >&2
@@ -58,7 +49,23 @@ for dump in $(find $refdir -name "*.dump"); do
echo "ABIDIFF_ABI_INCOMPATIBLE_CHANGE, this change breaks the ABI." >&2
fi
echo
+ return $abiret
}
-done
+}
+export -f run_diff
+
+error=
+for dump in $(find $refdir -name "*.dump"); do
+ name=$(basename $dump)
+ dump2=$(find $newdir -name $name)
+ if [ -z "$dump2" ] || [ ! -e "$dump2" ]; then
+ echo "Error: cannot find $name in $newdir" >&2
+ error=1
+ continue
+ fi
+ echo $dump $dump2
+done |
+xargs -n2 -P0 sh -c 'run_diff $0 $1' ||
+error=1
[ -z "$error" ] || [ -n "$warnonly" ]
@@ -22,5 +22,6 @@ for f in $(find $installdir -name "*.so.*"); do
fi
libname=$(basename $f)
- abidw --out-file $dumpdir/${libname%.so*}.dump $f
-done
+ echo $dumpdir/${libname%.so*}.dump $f
+done |
+xargs -n2 -P0 abidw --out-file