Re: [PATCH v2] bpf: btf: Always output invariant hit in pahole DWARF to BTF transform

[Daniel Borkmann]

On 1/22/20 1:01 AM, Chris Down wrote:
> When trying to compile with CONFIG_DEBUG_INFO_BTF enabled, I got this
> error:
>
>      % make -s
>      Failed to generate BTF for vmlinux
>      Try to disable CONFIG_DEBUG_INFO_BTF
>      make[3]: *** [vmlinux] Error 1
>
> Compiling again without -s shows the true error (that pahole is
> missing), but since this is fatal, we should show the error
> unconditionally on stderr as well, not silence it using the `info`
> function. With this patch:
>
>      % make -s
>      BTF: .tmp_vmlinux.btf: pahole (pahole) is not available
>      Failed to generate BTF for vmlinux
>      Try to disable CONFIG_DEBUG_INFO_BTF
>      make[3]: *** [vmlinux] Error 1
>
> Signed-off-by: Chris Down <chris@xxxxxxxxxxxxxx>
> Cc: Stanislav Fomichev <sdf@xxxxxxxxxx>
> Cc: Andrii Nakryiko <andriin@xxxxxx>
> Cc: John Fastabend <john.fastabend@xxxxxxxxx>
> Cc: linux-kernel@xxxxxxxxxxxxxxx
> Cc: netdev@xxxxxxxxxxxxxxx
> Cc: bpf@xxxxxxxxxxxxxxx
> Cc: kernel-team@xxxxxx

Applied, thanks!