[llvm-bugs] [Bug 28154] New: [meta] Add support for CodeView, the MSVC-compatible debug information format

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https://llvm.org/bugs/show_bug.cgi?id=28154

            Bug ID: 28154
           Summary: [meta] Add support for CodeView, the MSVC-compatible
                    debug information format
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: normal
          Priority: P
         Component: DebugInfo
          Assignee: unassignedbugs at nondot.org
          Reporter: rnk at google.com
                CC: llvm-bugs at lists.llvm.org
            Blocks: 13707
    Classification: Unclassified

LLVM should be able to emit CodeView debug info, the format used by Microsoft's
debuggers, profilers, etc. This is a meta bug to track functionality in this
area. Please file CodeView issues and mark them as blocking this bug to track
them.

The current status is that using 'clang -g -gcodeview' (TODO: make -gcodeview
imply -g) or 'clang-cl /Zi' or 'clang-cl /Z7' will emit CodeView into COFF
objects. We describe local variables, globals, and functions, but there are
major gaps. /Zi-style emission of type info into PDBs is not on the immediate
roadmap.

---

We had a bug from 2012 to implement this, but I'm reopening with a clean slate
since the original reporter doesn't want to receive meta-bug update spam.

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