Subject: [patch 5/5] Add the -fstack-protector option to the CFLAGS
From: Arjan van de Ven <[email protected]>
Add the actual compiler options to the CFLAGS, but only for gcc 4.2
and later. Based on feedback from Sam Ravnborg.
Signed-off-by: Arjan van de Ven <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
CC: Sam Ravnborg <[email protected]>
CC: Andi Kleen <[email protected]>
--
Index: linux-2.6.18-rc2-git5-stackprot/Makefile
===================================================================
--- linux-2.6.18-rc2-git5-stackprot.orig/Makefile
+++ linux-2.6.18-rc2-git5-stackprot/Makefile
@@ -487,6 +487,18 @@ ifdef CONFIG_DEBUG_INFO
CFLAGS += -g
endif
+ifdef CONFIG_CC_STACKPROTECTOR
+CFLAGS += $(call cc-ifversion, -lt, 0402, -fno-stack-protector)
+CFLAGS += $(call cc-ifversion, -ge, 0402, -fstack-protector)
+else
+CFLAGS += -fno-stack-protector
+endif
+
+ifdef CONFIG_CC_STACKPROTECTOR_ALL
+CFLAGS += $(call cc-ifversion, -ge, 0402, -fstack-protector-all)
+endif
+
+
include $(srctree)/arch/$(ARCH)/Makefile
# arch Makefile may override CC so keep this after arch Makefile is included
-
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