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Stop emitting DW_AT_linkage_name for non-mangled symbols #59422

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Stop emitting DW_AT_linkage_name for non-mangled symbols#59422
#72620
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A-debuginfoArea: Debugging information in compiled programs (DWARF, PDB, etc.)C-enhancementCategory: An issue proposing an enhancement or a PR with one.T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.
@rocallahan

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@rocallahan
rocallahan
opened on Mar 25, 2019

Debuggers will try to demangle DW_AT_linkage_name names. However, rustc (1.33) is emitting non-mangled names in DW_AT_linkage_name attributes for #[no_mangle] symbols. I think you can just omit DW_AT_linkage_name completely for these symbols, which will also save a tiny bit of space.

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    A-debuginfoArea: Debugging information in compiled programs (DWARF, PDB, etc.)C-enhancementCategory: An issue proposing an enhancement or a PR with one.T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.

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