Re: [PATCH RFC 1/2] kconfig: use interpreters to invoke scripts

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On Sat, Oct 03, 2020 at 08:50:10PM +0530, Ujjwal Kumar wrote:
> We cannot rely on execute bits to be set on files in the repository.
> The build script should use the explicit interpreter when invoking any
> script from the repository.
> 
> Link: https://lore.kernel.org/lkml/20200830174409.c24c3f67addcce0cea9a9d4c@xxxxxxxxxxxxxxxxxxxx/
> Link: https://lore.kernel.org/lkml/202008271102.FEB906C88@keescook/
> 
> Suggested-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
> Suggested-by: Kees Cook <keescook@xxxxxxxxxxxx>
> Suggested-by: Lukas Bulwahn <lukas.bulwahn@xxxxxxxxx>
> Signed-off-by: Ujjwal Kumar <ujjwalkumar0501@xxxxxxxxx>

Reviewed-by: Nathan Chancellor <natechancellor@xxxxxxxxx>

> ---
>  init/Kconfig | 16 ++++++++--------
>  1 file changed, 8 insertions(+), 8 deletions(-)
> 
> diff --git a/init/Kconfig b/init/Kconfig
> index 91456ac0ef20..524f6b555945 100644
> --- a/init/Kconfig
> +++ b/init/Kconfig
> @@ -30,12 +30,12 @@ config CC_IS_GCC
>  
>  config GCC_VERSION
>  	int
> -	default $(shell,$(srctree)/scripts/gcc-version.sh $(CC)) if CC_IS_GCC
> +	default $(shell,$(CONFIG_SHELL) $(srctree)/scripts/gcc-version.sh $(CC)) if CC_IS_GCC
>  	default 0
>  
>  config LD_VERSION
>  	int
> -	default $(shell,$(LD) --version | $(srctree)/scripts/ld-version.sh)
> +	default $(shell,$(LD) --version | $(AWK) -f $(srctree)/scripts/ld-version.sh)
>  
>  config CC_IS_CLANG
>  	def_bool $(success,echo "$(CC_VERSION_TEXT)" | grep -q clang)
> @@ -45,20 +45,20 @@ config LD_IS_LLD
>  
>  config CLANG_VERSION
>  	int
> -	default $(shell,$(srctree)/scripts/clang-version.sh $(CC))
> +	default $(shell,$(CONFIG_SHELL) $(srctree)/scripts/clang-version.sh $(CC))
>  
>  config CC_CAN_LINK
>  	bool
> -	default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(m64-flag)) if 64BIT
> -	default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(m32-flag))
> +	default $(success,$(CONFIG_SHELL) $(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(m64-flag)) if 64BIT
> +	default $(success,$(CONFIG_SHELL) $(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(m32-flag))
>  
>  config CC_CAN_LINK_STATIC
>  	bool
> -	default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(m64-flag) -static) if 64BIT
> -	default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(m32-flag) -static)
> +	default $(success,$(CONFIG_SHELL) $(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(m64-flag) -static) if 64BIT
> +	default $(success,$(CONFIG_SHELL) $(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(m32-flag) -static)
>  
>  config CC_HAS_ASM_GOTO
> -	def_bool $(success,$(srctree)/scripts/gcc-goto.sh $(CC))
> +	def_bool $(success,$(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC))
>  
>  config CC_HAS_ASM_GOTO_OUTPUT
>  	depends on CC_HAS_ASM_GOTO
> -- 
> 2.26.2
> 



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