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From: Eiichi Tsukata <eiichi.tsukata@nutanix.com>
To: peterz@infradead.org, mingo@redhat.com, acme@kernel.org,
	namhyung@kernel.org, mark.rutland@arm.com,
	alexander.shishkin@linux.intel.com, jolsa@kernel.org,
	irogers@google.com, adrian.hunter@intel.com,
	kan.liang@linux.intel.com, james.clark@linaro.org,
	linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Eiichi Tsukata <eiichi.tsukata@nutanix.com>
Subject: [PATCH] perf test: Use -Wp,-U_FORTIFY_SOURCE for tests built with -O0
Date: Tue,  6 Aug 2024 06:17:49 +0000	[thread overview]
Message-ID: <20240806061749.143072-1-eiichi.tsukata@nutanix.com> (raw)

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@nutanix.com>
---
 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 48bf0d3b0f3d..ec36c21e375e 100644
--- a/tools/perf/tests/workloads/Build
+++ b/tools/perf/tests/workloads/Build
@@ -7,7 +7,7 @@ perf-test-y += sqrtloop.o
 perf-test-y += brstack.o
 perf-test-y += datasym.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
-- 
2.45.2


             reply	other threads:[~2024-08-06  6:37 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-08-06  6:17 Eiichi Tsukata [this message]
2024-08-06  6:27 ` [PATCH] perf test: Use -Wp,-U_FORTIFY_SOURCE for tests built with -O0 Eiichi Tsukata
2024-08-26  3:04   ` Eiichi Tsukata
2024-08-26 14:42     ` Arnaldo Carvalho de Melo
2024-08-27  2:45       ` Eiichi Tsukata

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