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SubjectRe: [PATCH 4/4] ubsan: Disable UBSAN_TRAP for all*config
On Fri, Oct 02, 2020 at 03:15:27PM -0700, Kees Cook wrote:
> Doing all*config builds attempts build as much as possible. UBSAN_TRAP
> effectively short-circuits lib/usban.c, so it should be disabled for
> COMPILE_TEST so that the lib/ubsan.c code gets built.
>
> Signed-off-by: Kees Cook <keescook@chromium.org>

Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>

> ---
> lib/Kconfig.ubsan | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/lib/Kconfig.ubsan b/lib/Kconfig.ubsan
> index 1fc07f936e06..b5b9da0b635a 100644
> --- a/lib/Kconfig.ubsan
> +++ b/lib/Kconfig.ubsan
> @@ -14,6 +14,7 @@ if UBSAN
>
> config UBSAN_TRAP
> bool "On Sanitizer warnings, abort the running kernel code"
> + depends on !COMPILE_TEST
> depends on $(cc-option, -fsanitize-undefined-trap-on-error)
> help
> Building kernels with Sanitizer features enabled tends to grow
> --
> 2.25.1

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