On Wed, Apr 9, 2025, at 18:02, Kees Cook wrote:
> There are very few users of this plugin[1], and since it's features
> are available in GCC 6 and later (and Clang), users can update their
> compilers if they need support on newer kernels.
>
> Suggested-by: Arnd Bergmann <[email protected]>
> Link:
> https://lore.kernel.org/all/[email protected]/
>
> [1]
> Signed-off-by: Kees Cook <[email protected]>
>
> diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
> index 1af972a92d06..e7347419ffc5 100644
> --- a/lib/Kconfig.debug
> +++ b/lib/Kconfig.debug
> @@ -2135,15 +2135,13 @@ config ARCH_HAS_KCOV
> config CC_HAS_SANCOV_TRACE_PC
> def_bool $(cc-option,-fsanitize-coverage=trace-pc)
>
My version removed CC_HAS_SANCOV_TRACE_PC as well, as I planned
to have this on top of my patch to require gcc-8.1 as the
minimum version.
> config KCOV
> bool "Code coverage for fuzzing"
> depends on ARCH_HAS_KCOV
> - depends on CC_HAS_SANCOV_TRACE_PC || GCC_PLUGINS
> + depends on CC_HAS_SANCOV_TRACE_PC
So this dependency would also disappear. I think either way is fine.
The rest of the patch is again identical to my version.
Arnd
