contrib/llvm-project/llvm/lib/Bitcode/Writer/BitWriter.cpp

   1 //===-- BitWriter.cpp -----------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "llvm-c/BitWriter.h"
  10 #include "llvm/Bitcode/BitcodeWriter.h"
  11 #include "llvm/IR/Module.h"
  12 #include "llvm/Support/FileSystem.h"
  13 #include "llvm/Support/MemoryBuffer.h"
  14 #include "llvm/Support/raw_ostream.h"
  15 using namespace llvm;
  16
  17
  18 /*===-- Operations on modules ---------------------------------------------===*/
  19
  20 int LLVMWriteBitcodeToFile(LLVMModuleRef M, const char *Path) {
  21   std::error_code EC;
  22   raw_fd_ostream OS(Path, EC, sys::fs::F_None);
  23
  24   if (EC)
  25     return -1;
  26
  27   WriteBitcodeToFile(*unwrap(M), OS);
  28   return 0;
  29 }
  30
  31 int LLVMWriteBitcodeToFD(LLVMModuleRef M, int FD, int ShouldClose,
  32                          int Unbuffered) {
  33   raw_fd_ostream OS(FD, ShouldClose, Unbuffered);
  34
  35   WriteBitcodeToFile(*unwrap(M), OS);
  36   return 0;
  37 }
  38
  39 int LLVMWriteBitcodeToFileHandle(LLVMModuleRef M, int FileHandle) {
  40   return LLVMWriteBitcodeToFD(M, FileHandle, true, false);
  41 }
  42
  43 LLVMMemoryBufferRef LLVMWriteBitcodeToMemoryBuffer(LLVMModuleRef M) {
  44   std::string Data;
  45   raw_string_ostream OS(Data);
  46
  47   WriteBitcodeToFile(*unwrap(M), OS);
  48   return wrap(MemoryBuffer::getMemBufferCopy(OS.str()).release());
  49 }