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| author | basile@opensource.dyc.edu <basile@opensource.dyc.edu> | 2010-09-13 12:13:19 +0200 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2010-09-14 00:53:16 +0200 |
| commit | 08c2b394b98786ebb067e2a54d08f1f6f0d247da (patch) | |
| tree | fcbd20a7dfc1b75c270fcc5ce815babd78a9c8bb | |
| parent | x86, cpufeature: Suppress compiler warning with gcc 3.x (diff) | |
| download | linux-08c2b394b98786ebb067e2a54d08f1f6f0d247da.tar.xz linux-08c2b394b98786ebb067e2a54d08f1f6f0d247da.zip | |
x86, build: Disable -fPIE when compiling with CONFIG_CC_STACKPROTECTOR=y
The arch/x86/Makefile uses scripts/gcc-x86_$(BITS)-has-stack-protector.sh
to check if cc1 supports -fstack-protector. When -fPIE is passed to cc1,
these scripts fail causing stack protection to be disabled even when it
is available.
This fix is similar to commit c47efe5548abbf53c2f66e06dcb46183b11d6b22
Reported-by: Kai Dietrich <mail@cleeus.de>
Signed-off-by: Magnus Granberg <zorry@gentoo.org>
LKML-Reference: <20100913101319.748A1148E216@opensource.dyc.edu>
Signed-off-by: Anthony G. Basile <basile@opensource.dyc.edu>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
| -rw-r--r-- | arch/x86/Makefile | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/Makefile b/arch/x86/Makefile index 8aa1b59b9074..e8c8881351b3 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -74,7 +74,7 @@ endif ifdef CONFIG_CC_STACKPROTECTOR cc_has_sp := $(srctree)/scripts/gcc-x86_$(BITS)-has-stack-protector.sh - ifeq ($(shell $(CONFIG_SHELL) $(cc_has_sp) $(CC) $(biarch)),y) + ifeq ($(shell $(CONFIG_SHELL) $(cc_has_sp) $(CC) $(KBUILD_CPPFLAGS) $(biarch)),y) stackp-y := -fstack-protector KBUILD_CFLAGS += $(stackp-y) else |