[all-commits] [llvm/llvm-project] 9a9b9d: Reapply "[PDB][llvm-pdbutil] Add DXContainer suppo...

[Ilia Kuklin via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9a9b9d92db959447c32c63a931f269189c3c0893
      https://github.com/llvm/llvm-project/commit/9a9b9d92db959447c32c63a931f269189c3c0893
  Author: Ilia Kuklin <ikuklin at accesssoftek.com>
  Date:   2026-06-02 (Tue, 02 Jun 2026)

  Changed paths:
    M llvm/include/llvm/DebugInfo/PDB/Native/PDBFile.h
    M llvm/include/llvm/DebugInfo/PDB/Native/PDBFileBuilder.h
    M llvm/include/llvm/DebugInfo/PDB/Native/PDBStringTableBuilder.h
    M llvm/include/llvm/DebugInfo/PDB/Native/RawConstants.h
    M llvm/lib/DebugInfo/PDB/Native/PDBFile.cpp
    M llvm/lib/DebugInfo/PDB/Native/PDBFileBuilder.cpp
    A llvm/test/tools/llvm-pdbutil/dxcontainer.test
    M llvm/tools/llvm-pdbutil/PdbYaml.cpp
    M llvm/tools/llvm-pdbutil/PdbYaml.h
    M llvm/tools/llvm-pdbutil/YAMLOutputStyle.cpp
    M llvm/tools/llvm-pdbutil/YAMLOutputStyle.h
    M llvm/tools/llvm-pdbutil/llvm-pdbutil.cpp
    M llvm/tools/llvm-pdbutil/llvm-pdbutil.h

  Log Message:
  -----------
  Reapply "[PDB][llvm-pdbutil] Add DXContainer support for `pdb2yaml` and `yaml2pdb`" (#201092)

This reapplies #198351 with 2 issues fixed:
- `-Wchanges-meaning` causing an error in `PdbYaml.h`
- UB when parsing DXContainer header from a null buffer, fixed in
#200865

Original patch description:

This patch enables the following:
1. Attempting to parse a `DXContainer` from stream 5 (generated by
DirectX tools) of a PDB file, to be used later in `llvm-pdbutil`.
2. Outputting a PDB file with a built in DXContainer as YAML. Existing
DirectX tools form a PDB container with empty DBI, TPI and IPI streams,
so this patch also allows them to be empty when dumping a PDB file as
YAML.
3. Creating a PDB file from YAML with an built in DXContainer. When
creating a PDB with a DXContainer, streams DBI, TPI and IPI can be
completely empty, so this patch also includes adjustments to allow
forming such a PDB file. This is done to maintain compatibility with
other DirectX tools.



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