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scripts/has-stack-protector: add -fno-PIE 

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.

Cc: stable@vger.kernel.org
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Michal Marek <mmarek@suse.com>
This commit is contained in:
Sebastian Andrzej Siewior 2016-11-04 19:39:39 +01:00 committed by Michal Marek
parent 8ae94224c9
commit 82031ea29e
1 changed files with 1 additions and 1 deletions
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2
scripts/gcc-x86_64-has-stack-protector.sh
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@ -1,6 +1,6 @@
#!/bin/sh #!/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 if [ "$?" -eq "0" ] ; then
echo y echo y
else else