1 files changed, 39 insertions, 0 deletions
diff --git a/tools/llvmc2/Utility.cpp b/tools/llvmc2/Utility.cpp
new file mode 100644
index 0000000000..c53578ad44
--- /dev/null
+++ b/tools/llvmc2/Utility.cpp
@@ -0,0 +1,39 @@
+//===--- Utility.cpp - The LLVM Compiler Driver -----------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open
+// Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+//  Various helper and utility functions - implementation.
+//
+//===----------------------------------------------------------------------===//
+
+#include "Utility.h"
+
+#include "llvm/System/Program.h"
+
+#include <stdexcept>
+
+using namespace llvm;
+
+int llvmcc::ExecuteProgram(const std::string& name,
+                           const std::vector<std::string>& args) {
+  sys::Path prog = sys::Program::FindProgramByName(name);
+
+  if (prog.isEmpty())
+    throw std::runtime_error("Can't find program '" + name + "'");
+  if (!prog.canExecute())
+    throw std::runtime_error("Program '" + name + "' is not executable.");
+
+  // Invoke the program
+  std::vector<const char*> argv((args.size()+2));
+  argv[0] = name.c_str();
+  for (unsigned i = 1; i <= args.size(); ++i)
+    argv[i] = args[i-1].c_str();
+  argv[args.size()+1] = 0;  // null terminate list.
+
+  return sys::Program::ExecuteAndWait(prog, &argv[0]);
+}