summaryrefslogtreecommitdiffstats
path: root/arch/powerpc/tools/gcc-check-mprofile-kernel.sh
diff options
context:
space:
mode:
Diffstat (limited to 'arch/powerpc/tools/gcc-check-mprofile-kernel.sh')
-rwxr-xr-xarch/powerpc/tools/gcc-check-mprofile-kernel.sh11
1 files changed, 5 insertions, 6 deletions
diff --git a/arch/powerpc/tools/gcc-check-mprofile-kernel.sh b/arch/powerpc/tools/gcc-check-mprofile-kernel.sh
index a31a56016c..73e331e766 100755
--- a/arch/powerpc/tools/gcc-check-mprofile-kernel.sh
+++ b/arch/powerpc/tools/gcc-check-mprofile-kernel.sh
@@ -7,21 +7,20 @@ set -o pipefail
# To debug, uncomment the following line
# set -x
-# -mprofile-kernel is only supported on 64-bit, so this should not be invoked
-# for 32-bit. We pass in -m64 explicitly, and -mbig-endian and -mlittle-endian
-# are passed in from Kconfig, which takes care of toolchains defaulting to
-# other targets.
+# -mprofile-kernel is only supported on 64-bit with ELFv2, so this should not
+# be invoked for other targets. Therefore we can pass in -m64 and -mabi
+# explicitly, to take care of toolchains defaulting to other targets.
# Test whether the compile option -mprofile-kernel exists and generates
# profiling code (ie. a call to _mcount()).
echo "int func() { return 0; }" | \
- $* -m64 -S -x c -O2 -p -mprofile-kernel - -o - \
+ $* -m64 -mabi=elfv2 -S -x c -O2 -p -mprofile-kernel - -o - \
2> /dev/null | grep -q "_mcount"
# Test whether the notrace attribute correctly suppresses calls to _mcount().
echo -e "#include <linux/compiler.h>\nnotrace int func() { return 0; }" | \
- $* -m64 -S -x c -O2 -p -mprofile-kernel - -o - \
+ $* -m64 -mabi=elfv2 -S -x c -O2 -p -mprofile-kernel - -o - \
2> /dev/null | grep -q "_mcount" && \
exit 1