[PATCH] D79398: [WIP][dsymutil] Add reproducers to dsymutil

[Jonas Devlieghere via Phabricator via llvm-commits]

JDevlieghere created this revision.
JDevlieghere added reviewers: friss, aprantl, avl.
Herald added a subscriber: mgorny.
Herald added a project: LLVM.
JDevlieghere added a comment.

This needs tests and some polish but please let me know what you think of the general approach.


Add support for generating a dsymutil reproducer, which is a folder containing all the object files for linking. When `--gen-reproducer` is passed, dsymutil uses a `FileCollectorFileSystem` which keeps track of all the files used by dsymutil. These files are copied into a temporary directory when dsymutil exists. When this path is passed to `--use-reproducer`, dsymutil uses a RedirectingFileSystem that will use the files from the reproducer directory instead of the actual paths. This means you don't need to mess with the OSO path prefix.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D79398

Files:
  llvm/tools/dsymutil/CMakeLists.txt
  llvm/tools/dsymutil/Options.td
  llvm/tools/dsymutil/Reproducer.cpp
  llvm/tools/dsymutil/Reproducer.h
  llvm/tools/dsymutil/dsymutil.cpp

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