[Devel] [PATCH RHEL7 COMMIT] ms/scripts/has-stack-protector: add -fno-PIE

Konstantin Khorenko khorenko at virtuozzo.com
Wed Jan 31 16:18:00 MSK 2018


The commit is pushed to "branch-rh7-3.10.0-693.11.6.vz7.42.x-ovz" and will appear at https://src.openvz.org/scm/ovz/vzkernel.git
after rh7-3.10.0-693.11.6.vz7.42.3
------>
commit 369f626be24b8f002668b61d48a204332fb7ef3f
Author: Sebastian Andrzej Siewior <bigeasy at linutronix.de>
Date:   Wed Jan 31 16:17:59 2018 +0300

    ms/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 at vger.kernel.org
    Signed-off-by: Sebastian Andrzej Siewior <bigeasy at linutronix.de>
    Signed-off-by: Michal Marek <mmarek at suse.com>
    
    ms commit: 82031ea29e45 ("scripts/has-stack-protector: add -fno-PIE")
    Signed-off-by: Andrey Ryabinin <aryabinin at virtuozzo.com>
---
 scripts/gcc-x86_64-has-stack-protector.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/gcc-x86_64-has-stack-protector.sh b/scripts/gcc-x86_64-has-stack-protector.sh
index 973e8c141567..17867e723a51 100644
--- 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


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