[llvm-bugs] [Bug 37931] New: pdb2yaml and yaml2pdb doesn't properly roundtrip

via llvm-bugs llvm-bugs at lists.llvm.org
Mon Jun 25 15:01:51 PDT 2018


            Bug ID: 37931
           Summary: pdb2yaml and yaml2pdb doesn't properly roundtrip
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: DebugInfo
          Assignee: zturner at google.com
          Reporter: zturner at google.com
                CC: llvm-bugs at lists.llvm.org

If you create a PDB with MSVC linker and then run pdb2yaml on it and yaml2pdb
on the output file, the resulting PDB cannot be used to debug the original
program.  It looks like our streams aren't byte for byte identical, and in some
cases we don't emit certain streams at all (for example public and global hash

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