Add support to print version.

Summary: Add support in the universal driver to print the lld version and the
repository version.

Test Plan: A driver test is added

Reviewers: kledzik, ruiu

Reviewed By: ruiu

Subscribers: llvm-commits

Projects: #lld

Differential Revision: http://reviews.llvm.org/D5641

llvm-svn: 219277

1 files changed, 8 insertions, 0 deletions

diff --git a/lld/lib/Driver/UniversalDriver.cpp b/lld/lib/Driver/UniversalDriver.cpp
index d09c2357047..226fbec6b25 100644
--- a/lld/lib/Driver/UniversalDriver.cpp
+++ b/lld/lib/Driver/UniversalDriver.cpp
@@ -15,6 +15,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "lld/Driver/Driver.h"
+#include "lld/Config/Version.h"
 
 #include "lld/Core/LLVM.h"
 
@@ -188,6 +189,13 @@ bool UniversalDriver::link(int argc, const char *argv[],
     return true;
   }
 
+  // Handle -version
+  if (parsedArgs->getLastArg(OPT_version)) {
+    diagnostics << "LLVM Linker Version: " << getLLDVersion()
+                << getLLDRepositoryVersion() << "\n";
+    return true;
+  }
+
   Flavor flavor = getFlavor(argc, argv, parsedArgs);
   std::vector<const char *> args(argv, argv + argc);