[Lldb-commits] [PATCH] Use the DWARF linkage name when importing C++ methods

Greg Clayton via lldb-commits lldb-commits at lists.llvm.org
Mon Nov 20 07:57:50 PST 2017

Please submit a review of this patch through reviews.llvm.org <http://reviews.llvm.org/>. 

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> On Nov 19, 2017, at 10:33 PM, Nelson Elhage via lldb-commits <lldb-commits at lists.llvm.org> wrote:
> When importing C++ methods into clang AST nodes from the DWARF symbol table, preserve the DW_AT_linkage_name and use it as the linker ("asm") name for the symbol.
> Concretely, this enables `expression` to call into names that use the GNU `abi_tag` extension, and enables lldb to call into code using std::string or std::list from recent versions of libstdc++. See https://bugs.llvm.org/show_bug.cgi?id=35310 <https://bugs.llvm.org/show_bug.cgi?id=35310> . It also seems broadly more robust than relying on the DWARF->clang->codegen pipeline to roundtrip properly, but I'm not immediately aware of any other cases in which it makes a difference.
> - Nelson
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