[PATCH] D83014: [PDB] read/dump fixups from PDB dbi stream

[Jack Andersen via Phabricator via llvm-commits]

jackoalan created this revision.
Herald added subscribers: llvm-commits, hiraditya.
Herald added a project: LLVM.

Binaries linked with `/DEBUGTYPE:CV,FIXUP` have a fixup substream present in the generated PDB's dbi.
This is essentially the equivalent of GCC's `--emit-relocs`. The fixup stream contains a list of all static
relocations performed by the linker. Each fixup entry uses the `XFIXUP_DATA` structure found in the cvdump
reference implementation.

Changes to llvm-pdbutil's dump tool can dump this information with `-fixups` or `-all`. The `DbiStream` public
API provides access to this stream array for tools that may be interested in cross-referencing symbols with
their usages.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D83014

Files:
  llvm/docs/PDB/DbiStream.rst
  llvm/include/llvm/DebugInfo/PDB/Native/DbiStream.h
  llvm/include/llvm/DebugInfo/PDB/Native/RawTypes.h
  llvm/include/llvm/Object/COFF.h
  llvm/lib/DebugInfo/PDB/Native/DbiStream.cpp
  llvm/lib/Object/COFFObjectFile.cpp
  llvm/test/tools/llvm-pdbutil/Inputs/FixupsTest.cpp
  llvm/test/tools/llvm-pdbutil/Inputs/FixupsTest.pdb
  llvm/test/tools/llvm-pdbutil/fixups.test
  llvm/test/tools/llvm-pdbutil/stripped.test
  llvm/test/tools/llvm-pdbutil/type-server-no-dbi.test
  llvm/tools/llvm-pdbutil/DumpOutputStyle.cpp
  llvm/tools/llvm-pdbutil/DumpOutputStyle.h
  llvm/tools/llvm-pdbutil/llvm-pdbutil.cpp
  llvm/tools/llvm-pdbutil/llvm-pdbutil.h

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