diff options
Diffstat (limited to 'scripts/Makefile.ubsan')
| -rw-r--r-- | scripts/Makefile.ubsan | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/scripts/Makefile.ubsan b/scripts/Makefile.ubsan new file mode 100644 index 000000000..2156e1839 --- /dev/null +++ b/scripts/Makefile.ubsan @@ -0,0 +1,36 @@ +# SPDX-License-Identifier: GPL-2.0 + +export CFLAGS_UBSAN := + +ifdef CONFIG_UBSAN_ALIGNMENT + CFLAGS_UBSAN += $(call cc-option, -fsanitize=alignment) +endif + +ifdef CONFIG_UBSAN_BOUNDS + ifdef CONFIG_CC_IS_CLANG + CFLAGS_UBSAN += -fsanitize=array-bounds + else + CFLAGS_UBSAN += $(call cc-option, -fsanitize=bounds) + endif +endif + +ifdef CONFIG_UBSAN_LOCAL_BOUNDS + CFLAGS_UBSAN += -fsanitize=local-bounds +endif + +ifdef CONFIG_UBSAN_MISC + CFLAGS_UBSAN += $(call cc-option, -fsanitize=shift) + CFLAGS_UBSAN += $(call cc-option, -fsanitize=integer-divide-by-zero) + CFLAGS_UBSAN += $(call cc-option, -fsanitize=unreachable) + CFLAGS_UBSAN += $(call cc-option, -fsanitize=signed-integer-overflow) + CFLAGS_UBSAN += $(call cc-option, -fsanitize=bool) + CFLAGS_UBSAN += $(call cc-option, -fsanitize=enum) +endif + +ifdef CONFIG_UBSAN_TRAP + CFLAGS_UBSAN += $(call cc-option, -fsanitize-undefined-trap-on-error) +endif + + # -fsanitize=* options makes GCC less smart than usual and + # increase number of 'maybe-uninitialized false-positives + CFLAGS_UBSAN += $(call cc-option, -Wno-maybe-uninitialized) |