On Wed, Jul 01, 2020 at 12:06:24AM +0900, Masahiro Yamada wrote:
> scripts/cc-can-link.sh tests if the compiler can link userspace
> programs.
> 
> When $(CC) is GCC, it is checked against the target architecture
> because the toolchain prefix is specified as a part of $(CC).
> 
> When $(CC) is Clang, it is checked against the host architecture
> because --target option is missing.
> 
> Pass $(CLANG_FLAGS) to scripts/cc-can-link.sh to evaluate the link
> capability for the target architecture.
> 
> Signed-off-by: Masahiro Yamada <[email protected]>

Reviewed-by: Nathan Chancellor <[email protected]>

> ---
> 
> Changes in v2:
>   - New patch
> 
>  init/Kconfig | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/init/Kconfig b/init/Kconfig
> index a46aa8f3174d..d0313e7725fa 100644
> --- a/init/Kconfig
> +++ b/init/Kconfig
> @@ -49,13 +49,13 @@ config CLANG_VERSION
>  
>  config CC_CAN_LINK
>       bool
> -     default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(m64-flag)) 
> if 64BIT
> -     default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(m32-flag))
> +     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))
>  
>  config CC_CAN_LINK_STATIC
>       bool
> -     default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) -static 
> $(m64-flag)) if 64BIT
> -     default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) -static 
> $(m32-flag))
> +     default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) 
> $(CLANG_FLAGS) -static $(m64-flag)) if 64BIT
> +     default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) 
> $(CLANG_FLAGS) -static $(m32-flag))
>  
>  config CC_HAS_ASM_GOTO
>       def_bool $(success,$(srctree)/scripts/gcc-goto.sh $(CC))
> -- 
> 2.25.1
> 

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