stack-protector: Fix test with 32-bit userland and CONFIG_64BIT=y

When building a 64-bit 4.18-rc1 kernel with a 32-bit userland, I noticed that stack protection was silently disabled. Adding -m64 in gcc-x86_64-has-stack-protector.sh fixed that, similar to what has been noticed in commit 2a61f47 ("stack-protector: test compiler capability in Kconfig and drop AUTO mode") for gcc-x86_32-has-stack-protector.sh. Signed-off-by: Sven Joachim <[email protected]> Signed-off-by: Masahiro Yamada <[email protected]>
iamdavidcz · Jun 25, 2018 · 5391e53 · 5391e53
1 parent ac85174
commit 5391e53
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/scripts/gcc-x86_64-has-stack-protector.sh b/scripts/gcc-x86_64-has-stack-protector.sh
@@ -1,4 +1,4 @@
 #!/bin/sh
 # SPDX-License-Identifier: GPL-2.0
 
-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"
+echo "int foo(void) { char X[200]; return 3; }" | $* -S -x c -c -m64 -O0 -mcmodel=kernel -fno-PIE -fstack-protector - -o - 2> /dev/null | grep -q "%gs"