[LLVMdev] Adding PDB support to lib\DebugInfo

[Dennis Luehring]

>The pdb reading code relies *very heavily* on Windows APIs

can you make shure not to have any windows api stuff in the pdb-reader interface
so its easy to - if someone wants to - implement an windows-api independent version (support reading under linux etc.)
because the pdb format needs to be analysed anyway for writing pdb information on compile/link (in the future)


Am 29.01.2015 um 19:20 schrieb Zachary Turner:
> I've been working on adding pdb reading support to llvm.  This started as a
> tool for dumping info from a pdb (similar to llvm-dwarfdump), which has
> been checked in and currently has limited support for dumping pdb.
>
> There's still more to be done on the pdb dumping tool, but at this point --
> to reduce duplicated effort -- I think it makes the most sense to start
> moving some of this logic into a library in llvm, and then change
> llvm-pdbdump to use the library.  Later, once the library is more
> comprehensive, I plan to then use it in LLDB for reading PDBs while
> debugging on Windows.
>
> I think the best way to do this is to move all of the code in lib/DebugInfo
> to lib/DebugInfo/dwarf, and then make another folder called
> lib/DebugInfo/pdb.   These would then be compiled into two separate
> libraries.
>
> Another approach is to just put the PDB code in the same folder as the
> dwarf code, but I don't like this approach for a number of reasons:
>
> 1) Not every consumer of DebugInfo wants both types of DebugInfo.
> 2) The pdb reading code relies *very heavily* on Windows APIs, and will not
> compile on other platforms.  This is solvable with some CMake machinery,
> but it's ugly and unwarranted in my opinion.
>
> So as a first step in this direction I'd like to propose moving the code in
> lib/DebugInfo to lib/DebugInfo/dwarf, and then updating the rest of llvm
> accordingly.
>
> Thoughts?  Comments?  Suggestions?
> Zach
>
>
>
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