diff options
Diffstat (limited to 'llvm/lib/Support/FileOutputBuffer.cpp')
| -rw-r--r-- | llvm/lib/Support/FileOutputBuffer.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/Support/FileOutputBuffer.cpp b/llvm/lib/Support/FileOutputBuffer.cpp index 0a5306f..ec12820 100644 --- a/llvm/lib/Support/FileOutputBuffer.cpp +++ b/llvm/lib/Support/FileOutputBuffer.cpp @@ -172,6 +172,10 @@ FileOutputBuffer::create(StringRef Path, size_t Size, unsigned Flags) { if (Flags & F_executable) Mode |= fs::all_exe; + // If Size is zero, don't use mmap which will fail with EINVAL. + if (Size == 0) + return createInMemoryBuffer(Path, Size, Mode); + fs::file_status Stat; fs::status(Path, Stat); |