tools/perf/build: Split out feature check: 'fortify-source'
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-wicrcLCy2wkalka7iwsuzgpb@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index a3de2f8..7a614f9 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -106,6 +106,7 @@
stackprotector-all \
stackprotector \
volatile-register-var \
+ fortify-source \
libnuma
$(foreach test,$(FEATURE_TESTS),$(call feature_check,$(test),$(test)))
@@ -123,7 +124,7 @@
endif
ifndef PERF_DEBUG
- ifeq ($(call try-cc,$(SOURCE_HELLO),$(CFLAGS) -D_FORTIFY_SOURCE=2,-D_FORTIFY_SOURCE=2),y)
+ ifeq ($(feature-fortify-source), 1)
CFLAGS += -D_FORTIFY_SOURCE=2
endif
endif
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index 5693299..529317e 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -4,6 +4,7 @@
test-stackprotector-all \
test-stackprotector \
test-volatile-register-var \
+ test-fortify-source \
test-libnuma
CC := $(CC) -MD
@@ -26,6 +27,9 @@
test-volatile-register-var:
$(BUILD) -Werror -Wvolatile-register-var
+test-fortify-source:
+ $(BUILD) -O2 -Werror -D_FORTIFY_SOURCE=2
+
test-libnuma:
$(BUILD) -lnuma
diff --git a/tools/perf/config/feature-checks/test-fortify-source.c b/tools/perf/config/feature-checks/test-fortify-source.c
new file mode 100644
index 0000000..c9f398d
--- /dev/null
+++ b/tools/perf/config/feature-checks/test-fortify-source.c
@@ -0,0 +1,6 @@
+#include <stdio.h>
+
+int main(void)
+{
+ return puts("hi");
+}