diff options
Diffstat (limited to 'lib/Support/StringRefMemoryObject.cpp')
-rw-r--r-- | lib/Support/StringRefMemoryObject.cpp | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/lib/Support/StringRefMemoryObject.cpp b/lib/Support/StringRefMemoryObject.cpp new file mode 100644 index 0000000000..5db11e918c --- /dev/null +++ b/lib/Support/StringRefMemoryObject.cpp @@ -0,0 +1,34 @@ +//===- lib/Support/StringRefMemoryObject.cpp --------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "llvm/Support/StringRefMemoryObject.h" + +using namespace llvm; + +int StringRefMemoryObject::readByte(uint64_t Addr, uint8_t *Byte) const { + if (Addr >= Base + getExtent() || Addr < Base) + return -1; + *Byte = Bytes[Addr - Base]; + return 0; +} + +int StringRefMemoryObject::readBytes(uint64_t Addr, + uint64_t Size, + uint8_t *Buf, + uint64_t *Copied) const { + if (Addr >= Base + getExtent() || Addr < Base) + return -1; + uint64_t Offset = Addr - Base; + if (Size > getExtent() - Offset) + Size = getExtent() - Offset; + memcpy(Buf, Bytes.data() + Offset, Size); + if (Copied) + *Copied = Size; + return 0; +} |