gistfile1.c

//===-- interception_type_test.cc -------------------------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file is a part of AddressSanitizer, an address sanity checker.
//
// Compile-time tests of the internal type definitions.
//===----------------------------------------------------------------------===//

#if defined(__linux__) || defined(__APPLE__)

#include "interception.h"
#include <sys/types.h>
#include <stddef.h>
#include <stdint.h>

COMPILER_CHECK(sizeof(::SIZE_T) == sizeof(size_t));
COMPILER_CHECK(sizeof(::SSIZE_T) == sizeof(ssize_t));
COMPILER_CHECK(sizeof(::PTRDIFF_T) == sizeof(ptrdiff_t));
COMPILER_CHECK(sizeof(::INTMAX_T) == sizeof(intmax_t));

#ifndef __APPLE__
COMPILER_CHECK(sizeof(::OFF64_T) == sizeof(off64_t));
#endif

// The following are the cases when pread (and friends) is used instead of
// pread64. In those cases we need OFF_T to match off_t. We don't care about the
// rest (they depend on _FILE_OFFSET_BITS setting when building an application).
# if defined(__ANDROID__) || !defined _FILE_OFFSET_BITS || \
  _FILE_OFFSET_BITS != 64
COMPILER_CHECK(sizeof(::OFF_T) == sizeof(off_t));
# endif

#endif

// WARNING: OFF_T may be different from OS type off_t, depending on the value of
// _FILE_OFFSET_BITS. This definition of OFF_T matches the ABI of system calls
// like pread and mmap, as opposed to pread64 and mmap64.
// FreeBSD, Mac and Linux/x86-64 are special.
#if SANITIZER_FREEBSD || SANITIZER_MAC || \
  (SANITIZER_LINUX && defined(__x86_64__))
typedef u64 OFF_T;
#else
typedef uptr OFF_T;
#endif
typedef u64  OFF64_T;

#if (SANITIZER_WORDSIZE == 64) || SANITIZER_MAC
typedef uptr operator_new_size_type;
#else
typedef u32 operator_new_size_type;
#endif
}  // namespace __sanitizer