From 009b1c42aa6266385f2c37e227516b24077e6dd7 Mon Sep 17 00:00:00 2001
From: Ed Schouten <ed@FreeBSD.org>
Date: Tue, 2 Jun 2009 17:52:33 +0000
Subject: Import LLVM, at r72732.

---
 lib/Support/PluginLoader.cpp | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 lib/Support/PluginLoader.cpp

(limited to 'lib/Support/PluginLoader.cpp')

diff --git a/lib/Support/PluginLoader.cpp b/lib/Support/PluginLoader.cpp
new file mode 100644
index 0000000000000..5acf1d13ee9c2
--- /dev/null
+++ b/lib/Support/PluginLoader.cpp
@@ -0,0 +1,43 @@
+//===-- PluginLoader.cpp - Implement -load command line option ------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the -load <plugin> command line option handler.
+//
+//===----------------------------------------------------------------------===//
+
+#define DONT_GET_PLUGIN_LOADER_OPTION
+#include "llvm/Support/ManagedStatic.h"
+#include "llvm/Support/PluginLoader.h"
+#include "llvm/Support/Streams.h"
+#include "llvm/System/DynamicLibrary.h"
+#include <ostream>
+#include <vector>
+using namespace llvm;
+
+static ManagedStatic<std::vector<std::string> > Plugins;
+
+void PluginLoader::operator=(const std::string &Filename) {
+  std::string Error;
+  if (sys::DynamicLibrary::LoadLibraryPermanently(Filename.c_str(), &Error)) {
+    cerr << "Error opening '" << Filename << "': " << Error
+         << "\n  -load request ignored.\n";
+  } else {
+    Plugins->push_back(Filename);
+  }
+}
+
+unsigned PluginLoader::getNumPlugins() {
+  return Plugins.isConstructed() ? Plugins->size() : 0;
+}
+
+std::string &PluginLoader::getPlugin(unsigned num) {
+  assert(Plugins.isConstructed() && num < Plugins->size() &&
+         "Asking for an out of bounds plugin");
+  return (*Plugins)[num];
+}
-- 
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