Re: [PATCH v3 2/3] Makefile: support flag -fsanitizer-coverage=trace-cmp

From: Andrey Ryabinin
Date: Tue Oct 10 2017 - 11:48:55 EST




On 10/10/2017 06:27 PM, Alexander Potapenko wrote:
>
> v3: - Andrey Ryabinin's comments: reinstated scripts/Makefile.kcov
> and moved CFLAGS_KCOV there, dropped CFLAGS_KCOV_COMPS

Huh? Try again.

> diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
> index 5e975fee0f5b..7ddd5932c832 100644
> --- a/scripts/Makefile.lib
> +++ b/scripts/Makefile.lib
> @@ -142,6 +142,12 @@ _c_flags += $(if $(patsubst n%,, \
> $(CFLAGS_KCOV))
> endif
>
> +ifeq ($(CONFIG_KCOV_ENABLE_COMPARISONS),y)
> +_c_flags += $(if $(patsubst n%,, \
> + $(KCOV_INSTRUMENT_$(basetarget).o)$(KCOV_INSTRUMENT)$(CONFIG_KCOV_INSTRUMENT_ALL)), \
> + $(CFLAGS_KCOV_COMPS))
> +endif
> +
> # If building the kernel in a separate objtree expand all occurrences
> # of -Idir to -I$(srctree)/dir except for absolute paths (starting with '/').
>
>