Driver: Support CC_PRINT_OPTIONS, used for logging the compile commands (in -v style) to a file.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99054 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/Compilation.cpp b/lib/Driver/Compilation.cpp
index 98c6374..227f79a 100644
--- a/lib/Driver/Compilation.cpp
+++ b/lib/Driver/Compilation.cpp
@@ -134,8 +134,34 @@
std::copy(C.getArguments().begin(), C.getArguments().end(), Argv+1);
Argv[C.getArguments().size() + 1] = 0;
- if (getDriver().CCCEcho || getArgs().hasArg(options::OPT_v))
- PrintJob(llvm::errs(), C, "\n", false);
+ if (getDriver().CCCEcho || getDriver().CCPrintOptions ||
+ getArgs().hasArg(options::OPT_v)) {
+ llvm::raw_ostream *OS = &llvm::errs();
+
+ // Follow gcc implementation of CC_PRINT_OPTIONS; we could also cache the
+ // output stream.
+ if (getDriver().CCPrintOptions && getDriver().CCPrintOptionsFilename) {
+ std::string Error;
+ OS = new llvm::raw_fd_ostream(getDriver().CCPrintOptionsFilename,
+ Error,
+ llvm::raw_fd_ostream::F_Append);
+ if (!Error.empty()) {
+ getDriver().Diag(clang::diag::err_drv_cc_print_options_failure)
+ << Error;
+ FailingCommand = &C;
+ delete OS;
+ return 1;
+ }
+ }
+
+ if (getDriver().CCPrintOptions)
+ *OS << "[Logging clang options]";
+
+ PrintJob(*OS, C, "\n", /*Quote=*/getDriver().CCPrintOptions);
+
+ if (OS != &llvm::errs())
+ delete OS;
+ }
std::string Error;
int Res =