Re: [PATCH v3 bpf-next 03/14] samples: bpf: makefile: use --target from cross-compile

[Andrii Nakryiko]

On Mon, Sep 16, 2019 at 4:01 AM Ivan Khoronzhuk
<ivan.khoronzhuk@xxxxxxxxxx> wrote:
>
> For cross compiling the target triple can be inherited from
> cross-compile prefix as it's done in CLANG_FLAGS from kernel makefile.
> So copy-paste this decision from kernel Makefile.
>
> Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@xxxxxxxxxx>
> ---

Acked-by: Andrii Nakryiko <andriin@xxxxxx>

>  samples/bpf/Makefile | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile
> index 43dee90dffa4..b59e77e2250e 100644
> --- a/samples/bpf/Makefile
> +++ b/samples/bpf/Makefile
> @@ -195,7 +195,7 @@ BTF_PAHOLE ?= pahole
>  # Detect that we're cross compiling and use the cross compiler
>  ifdef CROSS_COMPILE
>  HOSTCC = $(CROSS_COMPILE)gcc
> -CLANG_ARCH_ARGS = -target $(ARCH)
> +CLANG_ARCH_ARGS = --target=$(notdir $(CROSS_COMPILE:%-=%))
>  endif
>
>  # Don't evaluate probes and warnings if we need to run make recursively
> --
> 2.17.1
>