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| author | Michael Cree <mcree@orcon.net.nz> | 2009-11-11 10:43:03 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-11-11 10:46:45 +0300 |
| commit | 5d7bdab75cd56d2bdc0986ae5546be3b09fea70a (patch) | |
| tree | a0fcfc07a4d7cad05421f56de30526d68a442675 /tools/perf/Makefile | |
| parent | 9e827dd00a94136b944a538bede67c944d0b740a (diff) | |
| download | linux-5d7bdab75cd56d2bdc0986ae5546be3b09fea70a.tar.xz | |
perf tools: Test -fstack-protector-all compiler option for inclusion in CFLAGS
Some architectures (e.g. Alpha) do not support the
-fstack-protector-all compiler option and the use of the option
with -Werror causes the compiler to abort and the build fails.
Test that the compiler supports -fstack-protector-all before
inclusion in CFLAGS.
Signed-off-by: Michael Cree <mcree@orcon.net.nz>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <20091111074302.GA3728@omega>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/Makefile')
| -rw-r--r-- | tools/perf/Makefile | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/tools/perf/Makefile b/tools/perf/Makefile index b9509b1cc32c..e6d42728a33a 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -207,7 +207,7 @@ ifndef PERF_DEBUG CFLAGS_OPTIMIZE = -O6 endif -CFLAGS = $(MBITS) -ggdb3 -Wall -Wextra -std=gnu99 -Werror $(CFLAGS_OPTIMIZE) -fstack-protector-all -D_FORTIFY_SOURCE=2 $(EXTRA_WARNINGS) +CFLAGS = $(MBITS) -ggdb3 -Wall -Wextra -std=gnu99 -Werror $(CFLAGS_OPTIMIZE) -D_FORTIFY_SOURCE=2 $(EXTRA_WARNINGS) LDFLAGS = -lpthread -lrt -lelf -lm ALL_CFLAGS = $(CFLAGS) ALL_LDFLAGS = $(LDFLAGS) @@ -259,6 +259,9 @@ PTHREAD_LIBS = -lpthread # explicitly what architecture to check for. Fix this up for yours.. SPARSE_FLAGS = -D__BIG_ENDIAN__ -D__powerpc__ +ifeq ($(shell sh -c "echo 'int foo(void) {char X[2]; return 3;}' | $(CC) -x c -c -Werror -fstack-protector-all - -o /dev/null >/dev/null 2>&1 && echo y"), y) + CFLAGS := $(CFLAGS) -fstack-protector-all +endif ### --- END CONFIGURATION SECTION --- |