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* [PATCH] samples: fanotify: add CC_CAN_LINK dependency
@ 2021-10-29 11:33 Arnd Bergmann
  2021-10-29 12:44 ` Gabriel Krisman Bertazi
  0 siblings, 1 reply; 2+ messages in thread
From: Arnd Bergmann @ 2021-10-29 11:33 UTC (permalink / raw)
  To: Jan Kara, Gabriel Krisman Bertazi, Amir Goldstein
  Cc: Arnd Bergmann, Nathan Chancellor, Nick Desaulniers, linux-kernel, llvm

From: Arnd Bergmann <arnd@arndb.de>

When using a cross tools that only works for kernels, the
newn sample can end up with a link failure such as:

/usr/bin/ld: unrecognised emulation mode: aarch64linux
Supported emulations: elf_x86_64 elf32_x86_64 elf_i386 elf_iamcu elf_l1om elf_k1om i386pep i386pe
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[5]: *** [/git/arm-soc/scripts/Makefile.userprogs:28: samples/fanotify/fs-monitor] Error 1

Add a Kconfig dependency, similar to the one we use for
other samples.

Fixes: 5451093081db ("samples: Add fs error monitoring example")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 samples/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/samples/Kconfig b/samples/Kconfig
index 147a16dafaf8..83f12c1e9ca6 100644
--- a/samples/Kconfig
+++ b/samples/Kconfig
@@ -122,7 +122,7 @@ config SAMPLE_CONNECTOR
 
 config SAMPLE_FANOTIFY_ERROR
 	bool "Build fanotify error monitoring sample"
-	depends on FANOTIFY
+	depends on CC_CAN_LINK && FANOTIFY
 	help
 	  When enabled, this builds an example code that uses the
 	  FAN_FS_ERROR fanotify mechanism to monitor filesystem
-- 
2.29.2


^ permalink raw reply related	[flat|nested] 2+ messages in thread

* Re: [PATCH] samples: fanotify: add CC_CAN_LINK dependency
  2021-10-29 11:33 [PATCH] samples: fanotify: add CC_CAN_LINK dependency Arnd Bergmann
@ 2021-10-29 12:44 ` Gabriel Krisman Bertazi
  0 siblings, 0 replies; 2+ messages in thread
From: Gabriel Krisman Bertazi @ 2021-10-29 12:44 UTC (permalink / raw)
  To: Arnd Bergmann
  Cc: Jan Kara, Amir Goldstein, Arnd Bergmann, Nathan Chancellor,
	Nick Desaulniers, linux-kernel, llvm

Arnd Bergmann <arnd@kernel.org> writes:

> From: Arnd Bergmann <arnd@arndb.de>
>
> When using a cross tools that only works for kernels, the
> newn sample can end up with a link failure such as:
>
> /usr/bin/ld: unrecognised emulation mode: aarch64linux
> Supported emulations: elf_x86_64 elf32_x86_64 elf_i386 elf_iamcu elf_l1om elf_k1om i386pep i386pe
> clang: error: linker command failed with exit code 1 (use -v to see invocation)
> make[5]: *** [/git/arm-soc/scripts/Makefile.userprogs:28: samples/fanotify/fs-monitor] Error 1
>
> Add a Kconfig dependency, similar to the one we use for
> other samples.
>
> Fixes: 5451093081db ("samples: Add fs error monitoring example")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>


Hi Arnd,

This was reported by Guenter Roeck yesterday, I sent a patch for it
here:

https://lore.kernel.org/linux-fsdevel/87fsslasgz.fsf@collabora.com/


> ---
>  samples/Kconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/samples/Kconfig b/samples/Kconfig
> index 147a16dafaf8..83f12c1e9ca6 100644
> --- a/samples/Kconfig
> +++ b/samples/Kconfig
> @@ -122,7 +122,7 @@ config SAMPLE_CONNECTOR
>  
>  config SAMPLE_FANOTIFY_ERROR
>  	bool "Build fanotify error monitoring sample"
> -	depends on FANOTIFY
> +	depends on CC_CAN_LINK && FANOTIFY
>  	help
>  	  When enabled, this builds an example code that uses the
>  	  FAN_FS_ERROR fanotify mechanism to monitor filesystem

-- 
Gabriel Krisman Bertazi

^ permalink raw reply	[flat|nested] 2+ messages in thread

end of thread, other threads:[~2021-10-29 12:54 UTC | newest]

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2021-10-29 11:33 [PATCH] samples: fanotify: add CC_CAN_LINK dependency Arnd Bergmann
2021-10-29 12:44 ` Gabriel Krisman Bertazi

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