linux-kernel - Re: [PATCH 3/5] selftests/nolibc: anchor paths in $(srcdir) if possible

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Date:   Sun, 22 Oct 2023 11:22:39 +0200
From:   Willy Tarreau <w@....eu>
To:     Thomas Weißschuh <linux@...ssschuh.net>
Cc:     Shuah Khan <shuah@...nel.org>, Zhangjin Wu <falcon@...ylab.org>,
        linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/5] selftests/nolibc: anchor paths in $(srcdir) if
 possible

On Tue, Oct 10, 2023 at 02:33:58PM +0200, Thomas Weißschuh wrote:
> It is easier to recognize paths from their well-known location in the
> source tree than having to resolve the relative path in ones head.
> 
> Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
> ---
>  tools/testing/selftests/nolibc/Makefile | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/tools/testing/selftests/nolibc/Makefile b/tools/testing/selftests/nolibc/Makefile
> index 258293639572..598d53c5cb7b 100644
> --- a/tools/testing/selftests/nolibc/Makefile
> +++ b/tools/testing/selftests/nolibc/Makefile
> @@ -167,7 +167,7 @@ sysroot: sysroot/$(ARCH)/include
>  sysroot/$(ARCH)/include:
>  	$(Q)rm -rf sysroot/$(ARCH) sysroot/sysroot
>  	$(QUIET_MKDIR)mkdir -p sysroot
> -	$(Q)$(MAKE) -C ../../../include/nolibc ARCH=$(ARCH) OUTPUT=$(CURDIR)/sysroot/ headers_standalone
> +	$(Q)$(MAKE) -C $(srctree)/tools/include/nolibc ARCH=$(ARCH) OUTPUT=$(CURDIR)/sysroot/ headers_standalone
>  	$(Q)mv sysroot/sysroot sysroot/$(ARCH)
>  
>  ifneq ($(NOLIBC_SYSROOT),0)
> @@ -177,7 +177,7 @@ nolibc-test: nolibc-test.c sysroot/$(ARCH)/include
>  else
>  nolibc-test: nolibc-test.c
>  	$(QUIET_CC)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ \
> -	  -nostdlib -static -include ../../../include/nolibc/nolibc.h $< -lgcc
> +	  -nostdlib -static -include $(srctree)/tools/include/nolibc/nolibc.h $< -lgcc
>  endif

Agreed, this comes from the early days where we didn't have srctree,
that's better this way.

Acked-by: Willy Tarreau <w@....eu>

Willy