[PATCH] D119850: Darwin: introduce a global override for debug prefix map entries

[Adrian Prantl via Phabricator via cfe-commits]

aprantl created this revision.
aprantl added reviewers: dexonsmith, arphaman.
aprantl requested review of this revision.

This patch adds a new Darwin clang driver environment variable in the spirit of RC_DEBUG_OPTIONS, called RC_DEBUG_PREFIX_MAP, which allows a meta build tool to add one additional -fdebug-prefix-map entry without the knowledge of the build system.

rdar://85224675


https://reviews.llvm.org/D119850

Files:
  clang/include/clang/Driver/ToolChain.h
  clang/lib/Driver/ToolChains/Clang.cpp
  clang/lib/Driver/ToolChains/Darwin.cpp
  clang/lib/Driver/ToolChains/Darwin.h
  clang/test/Driver/darwin-debug-prefix-map.c
  clang/test/Driver/darwin-debug-prefix-map.s

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