Re: [RFT] pahole 1.20 RC was Re: [PATCH] btf_encoder: Add extra checks for symbol names

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Em Wed, Feb 03, 2021 at 03:21:58PM -0800, Andrii Nakryiko escreveu:
> On Wed, Feb 3, 2021 at 1:48 PM Sedat Dilek <sedat.dilek@xxxxxxxxx> wrote:
> > Looks like CONFIG_DEBUG_INFO_BTF=y makes troubles with LLVM/Clang.
> > Can we have a fix for Linux v5.11-rc6+ to avoid a selection of it when
> > CC_IS_CLANG=y?
 
> Let's first understand problems and try to fix them, please.

Yeah, from what I've read this is something only related to clang
building the kernel with DWARF5, right?

I just delayed to tomorrow releasing pahole 1.20 as its late here and
there is this discussion going on, what I have is at:

https://git.kernel.org/pub/scm/devel/pahole/pahole.git/log/?h=tmp.1.20

There is one patch more than what I think Sedat tried, that makes a
Mark's patch for DWARF_TAG_call_site{_parameter} to be applied as well
when processing inline expansions, which for what is being discussed
here seems unrelated, just avoids tons of warnings when processing
vmlinux with gcc 11 in fedora rawhide.

- Arnaldo



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