From 725c4d22bbc4fcac5779963e0ff9cdf232afbb90 Mon Sep 17 00:00:00 2001 From: Christian Borntraeger Date: Mon, 12 Sep 2016 14:37:19 +0200 Subject: ubsan: allow to disable the null sanitizer Some architectures use a hardware defined structure at address zero. Checking for a null pointer will result in many ubsan reports. Allow users to disable the null sanitizer. Signed-off-by: Christian Borntraeger Acked-by: Andrey Ryabinin Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- scripts/Makefile.ubsan | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'scripts/Makefile.ubsan') diff --git a/scripts/Makefile.ubsan b/scripts/Makefile.ubsan index 8ab68679cfb5..dd779c40c8e6 100644 --- a/scripts/Makefile.ubsan +++ b/scripts/Makefile.ubsan @@ -3,7 +3,6 @@ ifdef CONFIG_UBSAN CFLAGS_UBSAN += $(call cc-option, -fsanitize=integer-divide-by-zero) CFLAGS_UBSAN += $(call cc-option, -fsanitize=unreachable) CFLAGS_UBSAN += $(call cc-option, -fsanitize=vla-bound) - CFLAGS_UBSAN += $(call cc-option, -fsanitize=null) CFLAGS_UBSAN += $(call cc-option, -fsanitize=signed-integer-overflow) CFLAGS_UBSAN += $(call cc-option, -fsanitize=bounds) CFLAGS_UBSAN += $(call cc-option, -fsanitize=object-size) @@ -14,4 +13,8 @@ ifdef CONFIG_UBSAN ifdef CONFIG_UBSAN_ALIGNMENT CFLAGS_UBSAN += $(call cc-option, -fsanitize=alignment) endif + +ifdef CONFIG_UBSAN_NULL + CFLAGS_UBSAN += $(call cc-option, -fsanitize=null) +endif endif -- cgit v1.2.3-58-ga151