Re: bpf: handling non BPF register names in inline assembly with -target bpf

From: Arnaldo Carvalho de Melo
Date: Wed Apr 11 2018 - 19:17:41 EST


Em Wed, Apr 11, 2018 at 04:47:29PM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Wed, Apr 11, 2018 at 12:22:37PM -0700, Yonghong Song escreveu:
> > Look at test bpf-script-test-kbuild.c, I think you can drop
> > uapi/asm/ptrace.h from include file list. This way, you do not need
> > __BPF__ in x86/include/asm/asm.h. At the same time, you can
> > remove __BPF__ as well.
>
> That's even better, I'll try that approach, that code was done by
> someone else, so I ended up not considering looking if removing a
> unnecessary header would fix the issue, I'll check and if that works
> I'll revert the patch that introduced that ifndef __BPF__.

So this is what I've pushed to my perf/core branch:

https://git.kernel.org/acme/c/707ba03243d2 (HEAD -> perf/core) Revert "x86/asm: Allow again using asm.h when building for the 'bpf' clang target"
https://git.kernel.org/acme/c/4364203f5563 pref tests bpf: Remove unused ptrace.h include from LLVM test

Thanks,

- Arnaldo