[PATCH] D136090: Handle errors in expansion of response files

[Serge Pavlov via Phabricator via llvm-commits]

sepavloff created this revision.
sepavloff added reviewers: kadircet, mgorny, MaskRay, smeenai.
Herald added subscribers: StephenFan, hiraditya.
Herald added a reviewer: awarzynski.
Herald added projects: Flang, All.
sepavloff requested review of this revision.
Herald added subscribers: llvm-commits, jdoerfert.
Herald added projects: clang, LLVM.

Previously an error raised during an expansion of response files (including
configuration files) was ignored and only the fact of its presence was
reported to the user with generic error messages. This made it difficult to
analyze problems. For example, if a configuration file tried to read an
inexistent file, the error message said that 'configuration file cannot
be found', which is wrong and misleading.

This change enhances handling errors in the expansion so that users
could get more informative error messages.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D136090

Files:
  clang/include/clang/Basic/DiagnosticDriverKinds.td
  clang/lib/Driver/Driver.cpp
  clang/lib/Tooling/ExpandResponseFilesCompilationDatabase.cpp
  clang/test/Driver/config-file-errs.c
  clang/tools/driver/driver.cpp
  clang/unittests/Driver/ToolChainTest.cpp
  flang/tools/flang-driver/driver.cpp
  llvm/include/llvm/Support/CommandLine.h
  llvm/lib/Support/CommandLine.cpp
  llvm/unittests/Support/CommandLineTest.cpp

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