[PATCH v2] perf test: Use -Wp,-U_FORTIFY_SOURCE for tests built with -O0

From: Eiichi Tsukata
Date: Mon Aug 26 2024 - 22:51:21 EST


If EXTRA_CFLAGS has "-Wp,-D_FORTIFY_SOURCE=2", the build fails with:

error: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Werror=cpp]

Use "-Wp,-U_FORTIFY_SOURCE" instead of "-U_FORTIFY_SOURCE" for tests
built with -O0.

Signed-off-by: Eiichi Tsukata <eiichi.tsukata@xxxxxxxxxxx>
---
tools/perf/tests/workloads/Build | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/tools/perf/tests/workloads/Build b/tools/perf/tests/workloads/Build
index 5af17206f04d..e9af6b903770 100644
--- a/tools/perf/tests/workloads/Build
+++ b/tools/perf/tests/workloads/Build
@@ -8,7 +8,7 @@ perf-test-y += brstack.o
perf-test-y += datasym.o
perf-test-y += landlock.o

-CFLAGS_sqrtloop.o = -g -O0 -fno-inline -U_FORTIFY_SOURCE
-CFLAGS_leafloop.o = -g -O0 -fno-inline -fno-omit-frame-pointer -U_FORTIFY_SOURCE
-CFLAGS_brstack.o = -g -O0 -fno-inline -U_FORTIFY_SOURCE
-CFLAGS_datasym.o = -g -O0 -fno-inline -U_FORTIFY_SOURCE
+CFLAGS_sqrtloop.o = -g -O0 -fno-inline -Wp,-U_FORTIFY_SOURCE
+CFLAGS_leafloop.o = -g -O0 -fno-inline -fno-omit-frame-pointer -Wp,-U_FORTIFY_SOURCE
+CFLAGS_brstack.o = -g -O0 -fno-inline -Wp,-U_FORTIFY_SOURCE
+CFLAGS_datasym.o = -g -O0 -fno-inline -Wp,-U_FORTIFY_SOURCE
--
2.46.0