llvm/lib/Bitcode/Writer/BitWriter.cpp
Dan Gohman baa26395cc Make LLVM command-line tools overwrite their output files without -f.
This is conventional command-line tool behavior. -f now just means
"enable binary output on terminals".

Add a -f option to llvm-extract and llvm-link, for consistency.

Remove F_Force from raw_fd_ostream and enable overwriting and
truncating by default. Introduce an F_Excl flag to permit users to
enable a failure when the file already exists. This flag is
currently unused.

Update Makefiles and documentation accordingly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79990 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-25 15:34:52 +00:00

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//===-- 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 "llvm/Support/raw_ostream.h"
using namespace llvm;
/*===-- Operations on modules ---------------------------------------------===*/
int LLVMWriteBitcodeToFile(LLVMModuleRef M, const char *Path) {
std::string ErrorInfo;
raw_fd_ostream OS(Path, ErrorInfo,
raw_fd_ostream::F_Binary);
if (!ErrorInfo.empty())
return -1;
WriteBitcodeToFile(unwrap(M), OS);
return 0;
}
#if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR >= 4)
#include <ext/stdio_filebuf.h>
int LLVMWriteBitcodeToFileHandle(LLVMModuleRef M, int FileHandle) {
raw_fd_ostream OS(FileHandle, false);
WriteBitcodeToFile(unwrap(M), OS);
return 0;
}
#else
int LLVMWriteBitcodeToFileHandle(LLVMModuleRef M, int FileHandle) {
return -1; // Not supported.
}
#endif