diff options
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 20 |
1 files changed, 17 insertions, 3 deletions
@@ -601,10 +601,24 @@ ifneq ($(CONFIG_FRAME_WARN),0) KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN}) endif -# Force gcc to behave correct even for buggy distributions -ifndef CONFIG_CC_STACKPROTECTOR -KBUILD_CFLAGS += $(call cc-option, -fno-stack-protector) +# Handle stack protector mode. +ifdef CONFIG_CC_STACKPROTECTOR_REGULAR + stackp-flag := -fstack-protector + ifeq ($(call cc-option, $(stackp-flag)),) + $(warning Cannot use CONFIG_CC_STACKPROTECTOR: \ + -fstack-protector not supported by compiler)) + endif +else ifdef CONFIG_CC_STACKPROTECTOR_STRONG + stackp-flag := -fstack-protector-strong + ifeq ($(call cc-option, $(stackp-flag)),) + $(warning Cannot use CONFIG_CC_STACKPROTECTOR_STRONG: \ + -fstack-protector-strong not supported by compiler) + endif +else + # Force off for distro compilers that enable stack protector by default. + stackp-flag := $(call cc-option, -fno-stack-protector) endif +KBUILD_CFLAGS += $(stackp-flag) # This warning generated too much noise in a regular build. # Use make W=1 to enable this warning (see scripts/Makefile.build) |