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authorRodrigo Vivi <rodrigo.vivi@intel.com>2021-05-17 17:48:02 -0400
committerRodrigo Vivi <rodrigo.vivi@intel.com>2021-05-17 17:48:02 -0400
commitd22fe808f9a3456f16015e79f1b86a10ce13099f (patch)
tree8e8c99d742696a810297d54d650f308f6156d466 /scripts/gcc-x86_32-has-stack-protector.sh
parentdrm/i915/adl_p: Disable CCS on a-step (Wa_22011186057) (diff)
parentLinux 5.13-rc1 (diff)
downloadwireguard-linux-d22fe808f9a3456f16015e79f1b86a10ce13099f.tar.xz
wireguard-linux-d22fe808f9a3456f16015e79f1b86a10ce13099f.zip
Merge drm/drm-next into drm-intel-next
Time to get back in sync... Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Diffstat (limited to 'scripts/gcc-x86_32-has-stack-protector.sh')
-rwxr-xr-xscripts/gcc-x86_32-has-stack-protector.sh6
1 files changed, 5 insertions, 1 deletions
diff --git a/scripts/gcc-x86_32-has-stack-protector.sh b/scripts/gcc-x86_32-has-stack-protector.sh
index f5c119495254..825c75c5b715 100755
--- a/scripts/gcc-x86_32-has-stack-protector.sh
+++ b/scripts/gcc-x86_32-has-stack-protector.sh
@@ -1,4 +1,8 @@
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
-echo "int foo(void) { char X[200]; return 3; }" | $* -S -x c -c -m32 -O0 -fstack-protector - -o - 2> /dev/null | grep -q "%gs"
+# This requires GCC 8.1 or better. Specifically, we require
+# -mstack-protector-guard-reg, added by
+# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81708
+
+echo "int foo(void) { char X[200]; return 3; }" | $* -S -x c -c -m32 -O0 -fstack-protector -mstack-protector-guard-reg=fs -mstack-protector-guard-symbol=__stack_chk_guard - -o - 2> /dev/null | grep -q "%fs"