diff options
Diffstat (limited to 'tools/clang-cc/Options.cpp')
| -rw-r--r-- | tools/clang-cc/Options.cpp | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/tools/clang-cc/Options.cpp b/tools/clang-cc/Options.cpp index a18598ef7c..c97d4ca8c9 100644 --- a/tools/clang-cc/Options.cpp +++ b/tools/clang-cc/Options.cpp @@ -673,6 +673,10 @@ static llvm::cl::opt<bool> UndefMacros("undef", llvm::cl::value_desc("macro"), llvm::cl::desc("undef all system defines")); +static llvm::cl::list<std::string> +RemappedFiles("remap-file", llvm::cl::value_desc("<from>;<to>"), + llvm::cl::desc("replace the contents of the <from> file with the contents of the <to> file")); + } //===----------------------------------------------------------------------===// @@ -1071,6 +1075,20 @@ void clang::InitializePreprocessorOptions(PreprocessorOptions &Opts) { for (unsigned i = 0, e = OrderedPaths.size(); i != e; ++i) Opts.Includes.push_back(*OrderedPaths[i].second); + + // Handle file remapping. + for (unsigned i = 0, e = RemappedFiles.size(); i != e; ++i) { + std::string::size_type Semi = RemappedFiles[i].find(';'); + if (Semi == std::string::npos) { + // FIXME: Don't fail like this. + fprintf(stderr, + "error: -remap-file not of the form <from-file>;<to-file>\n"); + continue; + } + + Opts.addRemappedFile(llvm::StringRef(RemappedFiles[i].c_str(), Semi), + llvm::StringRef(RemappedFiles[i].c_str() + Semi + 1)); + } } void clang::InitializeLangOptions(LangOptions &Options, |