Re: [PATCH bpf] tools/resolve_btfids: build with host flags

[Song Liu]

On Tue, Jan 11, 2022 at 4:25 PM Connor O'Brien <connoro@xxxxxxxxxx> wrote:
>
> resolve_btfids is built using $(HOSTCC) and $(HOSTLD) but does not
> pick up the corresponding flags. As a result, host-specific settings
> (such as a sysroot specified via HOSTCFLAGS=--sysroot=..., or a linker
> specified via HOSTLDFLAGS=-fuse-ld=...) will not be respected.
>
> Fix this by setting CFLAGS to KBUILD_HOSTCFLAGS and LDFLAGS to
> KBUILD_HOSTLDFLAGS.
>
> Also pass the cflags through to libbpf via EXTRA_CFLAGS to ensure that
> the host libbpf is built with flags consistent with resolve_btfids.
>
> Signed-off-by: Connor O'Brien <connoro@xxxxxxxxxx>

I guess this should go to bpf-next tree?

Other than that,

Acked-by: Song Liu <songliubraving@xxxxxx>