[PATCH] D88603: [WebAssembly] Add support for DWARF type units

Derek Schuff via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Wed Oct 28 17:47:53 PDT 2020


dschuff added a comment.

@sbc100 I found that the cause of the assertion is that 
in dwarf 5, the type units apparently go in the .debug_info section (instead of the .debug_type section), and this section already exists (but it was created as a non-comdat).
So when `getWasmSection` tries to look up an existing section it fails because the group is part of the key. Then it tries to create a new section but that fails because the name is duplicate.

For some reason this doesn't happen or is not a problem with ELF but I haven't looked up why yet.
For now I just disabled the dwarf5+TU tests since we don't really use dwarf5 yet anyway.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D88603/new/

https://reviews.llvm.org/D88603



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