Re: [PATCH dwarves 1/2] dwarf_loader: parse dwarf tag DW_TAG_LLVM_annotation

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On Sun, Sep 19, 2021 at 5:36 PM Yonghong Song <yhs@xxxxxx> wrote:
>
> Parse dwarf tag DW_TAG_LLVM_annotation. Only record
> annotations with btf_tag name which corresponds to
> btf_tag attributes in C code. Such information will
> be used later by btf_encoder for BTF conversion.
>
> LLVM implementation only supports btf_tag annotations
> on struct/union, func, func parameter and variable ([1]).
> So we only check existence of corresponding DW tags
> in these places. A flag "--skip_encoding_btf_tag"
> is introduced if for whatever reason this feature
> needs to be disabled.
>
>  [1] https://reviews.llvm.org/D106614
>
> Signed-off-by: Yonghong Song <yhs@xxxxxx>
> ---

LGTM.

Acked-by: Andrii Nakryiko <andrii@xxxxxxxxxx>

>  dwarf_loader.c | 85 ++++++++++++++++++++++++++++++++++++++++++++++----
>  dwarves.h      | 10 ++++++
>  pahole.c       |  8 +++++
>  3 files changed, 97 insertions(+), 6 deletions(-)
>

[...]



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