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| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2016-11-04 19:39:39 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-11-26 09:56:55 +0100 |
| commit | ad4e2f324adec03341094acc54f9e20f1451923d (patch) | |
| tree | 65744bd75e0b282cde945b4aa62d79ba4b95bce9 /scripts/gcc-x86_64-has-stack-protector.sh | |
| parent | 1c7727d0bca0c620850834d8e4913a1f5bdc6cb7 (diff) | |
| download | lwn-ad4e2f324adec03341094acc54f9e20f1451923d.tar.gz lwn-ad4e2f324adec03341094acc54f9e20f1451923d.zip | |
scripts/has-stack-protector: add -fno-PIE
commit 82031ea29e454b574bc6f49a33683a693ca5d907 upstream.
Adding -no-PIE to the fstack protector check. -no-PIE was introduced
before -fstack-protector so there is no need for a runtime check.
Without it the build stops:
|Cannot use CONFIG_CC_STACKPROTECTOR_STRONG: -fstack-protector-strong available but compiler is broken
due to -mcmodel=kernel + -fPIE if -fPIE is enabled by default.
Tagging it stable so it is possible to compile recent stable kernels as
well.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Michal Marek <mmarek@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'scripts/gcc-x86_64-has-stack-protector.sh')
| -rwxr-xr-x | scripts/gcc-x86_64-has-stack-protector.sh | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/scripts/gcc-x86_64-has-stack-protector.sh b/scripts/gcc-x86_64-has-stack-protector.sh index 973e8c141567..17867e723a51 100755 --- a/scripts/gcc-x86_64-has-stack-protector.sh +++ b/scripts/gcc-x86_64-has-stack-protector.sh @@ -1,6 +1,6 @@ #!/bin/sh -echo "int foo(void) { char X[200]; return 3; }" | $* -S -x c -c -O0 -mcmodel=kernel -fstack-protector - -o - 2> /dev/null | grep -q "%gs" +echo "int foo(void) { char X[200]; return 3; }" | $* -S -x c -c -O0 -mcmodel=kernel -fno-PIE -fstack-protector - -o - 2> /dev/null | grep -q "%gs" if [ "$?" -eq "0" ] ; then echo y else |