1 files changed, 58 insertions, 0 deletions
diff --git a/lib/Bitcode/Writer/BitWriter.cpp b/lib/Bitcode/Writer/BitWriter.cpp
new file mode 100644
index 0000000..8834964
--- /dev/null
+++ b/lib/Bitcode/Writer/BitWriter.cpp
@@ -0,0 +1,58 @@
+//===-- BitWriter.cpp -----------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm-c/BitWriter.h"
+#include "llvm/Bitcode/ReaderWriter.h"
+#include <fstream>
+
+using namespace llvm;
+
+
+/*===-- Operations on modules ---------------------------------------------===*/
+
+int LLVMWriteBitcodeToFile(LLVMModuleRef M, const char *Path) {
+  std::ofstream OS(Path, std::ios_base::out|std::ios::trunc|std::ios::binary);
+  
+  if (!OS.fail())
+    WriteBitcodeToFile(unwrap(M), OS);
+  
+  if (OS.fail())
+    return -1;
+  
+  return 0;
+}
+
+#if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR >= 4)
+#include <ext/stdio_filebuf.h>
+
+// FIXME: Control this with configure? Provide some portable abstraction in
+// libSystem? As is, the user will just get a linker error if they use this on 
+// non-GCC. Some C++ stdlibs even have ofstream::ofstream(int fd).
+int LLVMWriteBitcodeToFileHandle(LLVMModuleRef M, int FileHandle) {
+  __gnu_cxx::stdio_filebuf<char> Buffer(FileHandle, std::ios_base::out |
+                                                    std::ios::trunc |
+                                                    std::ios::binary);
+  std::ostream OS(&Buffer);
+  
+  if (!OS.fail())
+    WriteBitcodeToFile(unwrap(M), OS);
+  
+  if (OS.fail())
+    return -1;
+  
+  return 0;
+}
+
+#else
+
+int LLVMWriteBitcodeToFileHandle(LLVMModuleRef M, int FileHandle) {
+  return -1; // Not supported.
+}
+
+#endif