Re: [PATCH 1/2] selftests/lib.mk: handle both LLVM=1 and CC=clang builds

From: Muhammad Usama Anjum
Date: Thu May 30 2024 - 01:05:33 EST


On 5/29/24 7:08 AM, John Hubbard wrote:
> The kselftests may be built in a couple different ways:
> make LLVM=1
> make CC=clang
>
> In order to handle both cases, set LLVM=1 if CC=clang. That way,the rest
> of lib.mk, and any Makefiles that include lib.mk, can base decisions
> solely on whether or not LLVM is set.
>
> Cc: Nathan Chancellor <nathan@xxxxxxxxxx>
> Cc: Ryan Roberts <ryan.roberts@xxxxxxx>
>
> Signed-off-by: John Hubbard <jhubbard@xxxxxxxxxx>
LGTM

Reviewed-by: Muhammad Usama Anjum <usama.anjum@xxxxxxxxxxxxx>

> ---
> tools/testing/selftests/lib.mk | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
>
> diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk
> index 429535816dbd..2902787b89b2 100644
> --- a/tools/testing/selftests/lib.mk
> +++ b/tools/testing/selftests/lib.mk
> @@ -1,5 +1,17 @@
> # This mimics the top-level Makefile. We do it explicitly here so that this
> # Makefile can operate with or without the kbuild infrastructure.
> +
> +# The kselftests may be built in a couple different ways:
> +# make LLVM=1
> +# make CC=clang
> +#
> +# In order to handle both cases, set LLVM=1 if CC=clang. That way,the rest of
> +# lib.mk, and any Makefiles that include lib.mk, can base decisions solely on
> +# whether or not LLVM is set.
> +ifeq ($(CC),clang)
> + LLVM := 1
> +endif
> +
> ifneq ($(LLVM),)
> ifneq ($(filter %/,$(LLVM)),)
> LLVM_PREFIX := $(LLVM)

--
BR,
Muhammad Usama Anjum