| //===- llvm/Support/Host.h - Host machine characteristics --------*- C++ -*-===// | |
| // | |
| // The LLVM Compiler Infrastructure | |
| // | |
| // This file is distributed under the University of Illinois Open Source | |
| // License. See LICENSE.TXT for details. | |
| // | |
| //===----------------------------------------------------------------------===// | |
| // | |
| // Methods for querying the nature of the host machine. | |
| // | |
| //===----------------------------------------------------------------------===// | |
| #ifndef LLVM_SUPPORT_HOST_H | |
| #define LLVM_SUPPORT_HOST_H | |
| #include "llvm/ADT/StringMap.h" | |
| #if defined(__linux__) || defined(__GNU__) || defined(__HAIKU__) | |
| #include <endian.h> | |
| #elif defined(_AIX) | |
| #include <sys/machine.h> | |
| #else | |
| #if !defined(BYTE_ORDER) && !defined(LLVM_ON_WIN32) | |
| #include <machine/endian.h> | |
| #endif | |
| #endif | |
| #include <string> | |
| namespace llvm { | |
| namespace sys { | |
| #if defined(BYTE_ORDER) && defined(BIG_ENDIAN) && BYTE_ORDER == BIG_ENDIAN | |
| static const bool IsBigEndianHost = true; | |
| #else | |
| static const bool IsBigEndianHost = false; | |
| #endif | |
| static const bool IsLittleEndianHost = !IsBigEndianHost; | |
| } | |
| } | |
| #endif |