dde5cf39d4
-fsanitize=* options makes GCC less smart than usual and increase number of 'maybe-uninitialized' false-positives. So this patch does two things: * Add -Wno-maybe-uninitialized to CFLAGS_UBSAN which will disable all such warnings for instrumented files. * Remove CONFIG_UBSAN_SANITIZE_ALL from all[yes|mod]config builds. So the all[yes|mod]config build goes without -fsanitize=* and still with -Wmaybe-uninitialized. Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com> Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
22 lines
1 KiB
Makefile
22 lines
1 KiB
Makefile
ifdef CONFIG_UBSAN
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CFLAGS_UBSAN += $(call cc-option, -fsanitize=shift)
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CFLAGS_UBSAN += $(call cc-option, -fsanitize=integer-divide-by-zero)
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CFLAGS_UBSAN += $(call cc-option, -fsanitize=unreachable)
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CFLAGS_UBSAN += $(call cc-option, -fsanitize=vla-bound)
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CFLAGS_UBSAN += $(call cc-option, -fsanitize=null)
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CFLAGS_UBSAN += $(call cc-option, -fsanitize=signed-integer-overflow)
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CFLAGS_UBSAN += $(call cc-option, -fsanitize=bounds)
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CFLAGS_UBSAN += $(call cc-option, -fsanitize=object-size)
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CFLAGS_UBSAN += $(call cc-option, -fsanitize=returns-nonnull-attribute)
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CFLAGS_UBSAN += $(call cc-option, -fsanitize=bool)
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CFLAGS_UBSAN += $(call cc-option, -fsanitize=enum)
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ifdef CONFIG_UBSAN_ALIGNMENT
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CFLAGS_UBSAN += $(call cc-option, -fsanitize=alignment)
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endif
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# -fsanitize=* options makes GCC less smart than usual and
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# increase number of 'maybe-uninitialized false-positives
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CFLAGS_UBSAN += $(call cc-option, -Wno-maybe-uninitialized)
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endif
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