[llvm-dev] Getting _eh_frame parser for llvm

[Dave Bozier via llvm-dev]

There is some eh_frame section parsing going on in the linker which is
required for .eh_frame_hdr creation and probably useful for dead-frame
elimination in the future. It would be great if there was a single
parser used by all llvm tools.

On Wed, Jan 20, 2016 at 2:21 PM, Igor Laevsky via llvm-dev
<llvm-dev at lists.llvm.org> wrote:
> Hi all,
>
> Not so long ago we have found ourselves in need of a robust _eh_frame parser. All we wanted is the ability to parse .eh_frame section emitted by LLVM's MCJIT. Considering this, LLVM would be a natural place for implementing such parser.
>
> Previous email thread about the issue (https://groups.google.com/forum/#!topic/llvm-dev/Vb_VYU7Eo0k) showed some interest among the community. Folks seemed to agree that DebugInfo is a good place to put implementation in.
>
> Next there was submission by Pete Cooper (http://reviews.llvm.org/D15535). It completely covered the issue. However it was reverted due to some windows test failures and wasn’t resubmitted since. While I was adapting Pete’s parser for our needs I have found a couple of small issues in it. However I can’t check if they were causing original failures.
>
> So the question is what is the right way of moving this forward? I can resubmit original Pete’s change with my fixes and see if it will cause any failures. Or maybe there are some alternative approaches which we haven’t thought about? Any opinions on this?
>
> — Igor
>
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