Re: [PATCH 1/2] bpftool: Allow to add compiler flags via EXTRA_CFLAGS variable

[Song Liu]

On Mon, Oct 8, 2018 at 1:24 AM Jiri Olsa <jolsa@xxxxxxxxxx> wrote:
>
> Adding EXTRA_CFLAGS allowing user to specify extra flags
> for CFLAGS variable.
>
> Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Acked-by: Song Liu <songliubraving@xxxxxx>

> ---
>  tools/bpf/bpftool/Makefile | 4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/tools/bpf/bpftool/Makefile b/tools/bpf/bpftool/Makefile
> index 74288a2197ab..5bfa07e3f2f7 100644
> --- a/tools/bpf/bpftool/Makefile
> +++ b/tools/bpf/bpftool/Makefile
> @@ -46,6 +46,10 @@ CFLAGS += -DPACKAGE='"bpftool"' -D__EXPORTED_HEADERS__ \
>         -I$(srctree)/tools/lib/bpf \
>         -I$(srctree)/tools/perf
>  CFLAGS += -DBPFTOOL_VERSION='"$(BPFTOOL_VERSION)"'
> +ifneq ($(EXTRA_CFLAGS),)
> +CFLAGS += $(EXTRA_CFLAGS)
> +endif
> +
>  LIBS = -lelf -lbfd -lopcodes $(LIBBPF)
>
>  INSTALL ?= install
> --
> 2.17.2
>