Various parts of lldb require knowing the source language. It’s possible that things will mostly work if you report that the language is c++, but you’ll probably get errors in other areas. It goes all the way down to the CodeView level, where certain cv records indicate the original source language. Can you check cvconst.h (ships with DIA SDK) and look for the enumeration corresponding to source language? Does it have a value for Rust? I’m guessing it doesn’t. When you generate PDBs for Rust you probably need to put something unique value there, then we could properly set the language in lldb On Mon, Aug 20, 2018 at 7:15 PM Vadim Chugunov <vadi...@gmail.com> wrote:
> Hi! > I've been investigating why LLDB refuses to set breakpoints in Rust source > files when using PDB debug info on Windows... This seems to stem from a > couple of checks here > <https://github.com/llvm-mirror/lldb/blob/f6f930a3608daf81441d3c9051fd9cff84eb6d58/source/Plugins/SymbolFile/PDB/SymbolFilePDB.cpp#L1509> > and here > <https://github.com/llvm-mirror/llvm/blob/baa88cf6cb85d4256bb0f806e1b4dc87b29ea98e/lib/DebugInfo/PDB/PDBSymbolCompiland.cpp#L104>. > > I am wondering, what is the backstory there? Are those still necessary? > I tried disabling them and Rust debugging worked just fine... > >
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