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| author | Christian Borntraeger <borntraeger@de.ibm.com> | 2016-09-12 14:37:19 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2016-09-20 14:26:08 +0200 |
| commit | 725c4d22bbc4fcac5779963e0ff9cdf232afbb90 (patch) | |
| tree | aa31d4784fc88800c8c26d18ecf90efa59480ee2 /scripts | |
| parent | f296190e41ee1e1e6912f0ddae09b28e9cfae48d (diff) | |
| download | lwn-725c4d22bbc4fcac5779963e0ff9cdf232afbb90.tar.gz lwn-725c4d22bbc4fcac5779963e0ff9cdf232afbb90.zip | |
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 <borntraeger@de.ibm.com>
Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'scripts')
| -rw-r--r-- | scripts/Makefile.ubsan | 5 |
1 files changed, 4 insertions, 1 deletions
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 |