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Message-ID: <aGYm1BARlztCoCLT@MiWiFi-R3L-srv>
Date: Thu, 3 Jul 2025 14:44:36 +0800
From: Baoquan He <bhe@...hat.com>
To: Moon Hee Lee <moonhee.lee.ca@...il.com>
Cc: khan@...uxfoundation.org, kexec@...ts.infradead.org, dwmw@...zon.co.uk,
	mingo@...nel.org, linux-kselftest@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-kernel-mentees@...ts.linux.dev,
	shuah@...nel.org, Shuah Khan <skhan@...uxfoundation.org>
Subject: Re: [PATCH v2] selftests/kexec: fix test_kexec_jump build

On 07/02/25 at 10:17am, Moon Hee Lee wrote:
> The test_kexec_jump program builds correctly when invoked from the top-level
> selftests/Makefile, which explicitly sets the OUTPUT variable. However,
> building directly in tools/testing/selftests/kexec fails with:
> 
>   make: *** No rule to make target '/test_kexec_jump', needed by 'test_kexec_jump.sh'.  Stop.

I can reproduce this, and this patch fixes it. Thanks.

Acked-by: Baoquan He <bhe@...hat.com>

> 
> This failure occurs because the Makefile rule relies on $(OUTPUT), which is
> undefined in direct builds.
> 
> Fix this by listing test_kexec_jump in TEST_GEN_PROGS, the standard way to
> declare generated test binaries in the kselftest framework. This ensures the
> binary is built regardless of invocation context and properly removed by
> make clean.
> 
> Acked-by: Shuah Khan <skhan@...uxfoundation.org>
> Signed-off-by: Moon Hee Lee <moonhee.lee.ca@...il.com>
> ---
> Changes in v2:
> - Dropped the .gitignore addition, as it is already handled in [1]
> 
> [1] https://lore.kernel.org/r/20250623232549.3263273-1-dyudaken@gmail.com
> 
> 
>  tools/testing/selftests/kexec/Makefile | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tools/testing/selftests/kexec/Makefile b/tools/testing/selftests/kexec/Makefile
> index e3000ccb9a5d..874cfdd3b75b 100644
> --- a/tools/testing/selftests/kexec/Makefile
> +++ b/tools/testing/selftests/kexec/Makefile
> @@ -12,7 +12,7 @@ include ../../../scripts/Makefile.arch
>  
>  ifeq ($(IS_64_BIT)$(ARCH_PROCESSED),1x86)
>  TEST_PROGS += test_kexec_jump.sh
> -test_kexec_jump.sh: $(OUTPUT)/test_kexec_jump
> +TEST_GEN_PROGS := test_kexec_jump
>  endif
>  
>  include ../lib.mk
> -- 
> 2.43.0
> 
> 


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