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| author | Tejun Heo <tj@kernel.org> | 2009-02-09 22:17:39 +0900 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-02-10 00:41:54 +0100 |
| commit | 5d707e9c8ef2a3596ed5c975c6ff05cec890c2b4 (patch) | |
| tree | d0088b317ee562f6655d58f5d561e2bb6aa5332c /scripts/gcc-x86_64-has-stack-protector.sh | |
| parent | 76397f72fb9f4c9a96dfe05462887811c81b0e17 (diff) | |
| download | lwn-5d707e9c8ef2a3596ed5c975c6ff05cec890c2b4.tar.gz lwn-5d707e9c8ef2a3596ed5c975c6ff05cec890c2b4.zip | |
stackprotector: update make rules
Impact: no default -fno-stack-protector if stackp is enabled, cleanup
Stackprotector make rules had the following problems.
* cc support test and warning are scattered across makefile and
kernel/panic.c.
* -fno-stack-protector was always added regardless of configuration.
Update such that cc support test and warning are contained in makefile
and -fno-stack-protector is added iff stackp is turned off. While at
it, prepare for 32bit support.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'scripts/gcc-x86_64-has-stack-protector.sh')
| -rw-r--r-- | scripts/gcc-x86_64-has-stack-protector.sh | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/scripts/gcc-x86_64-has-stack-protector.sh b/scripts/gcc-x86_64-has-stack-protector.sh index 325c0a1b03b6..2d69fcdc5609 100644 --- a/scripts/gcc-x86_64-has-stack-protector.sh +++ b/scripts/gcc-x86_64-has-stack-protector.sh @@ -2,5 +2,7 @@ echo "int foo(void) { char X[200]; return 3; }" | $1 -S -xc -c -O0 -mcmodel=kernel -fstack-protector - -o - 2> /dev/null | grep -q "%gs" if [ "$?" -eq "0" ] ; then - echo $2 + echo y +else + echo n fi |