gem5/ext/dnet/os.h
Mitch Hayenga 0270cf13ac ext: clang fix for flexible array members
Changes how flexible array members are defined so clang does not error
out during compilation.
2014-08-13 06:57:19 -04:00

118 lines
2.9 KiB
C

/*
* os.h
*
* Sleazy OS-specific defines.
*
* Copyright (c) 2000 Dug Song <dugsong@monkey.org>
*
* $Id: os.h,v 1.10 2004/05/04 03:19:42 dugsong Exp $
*/
#ifndef DNET_OS_H
#define DNET_OS_H
#ifdef _WIN32
# include <windows.h>
# include <winsock2.h>
# include <stdint.h>
/* XXX */
# undef IP_OPT_LSRR
# undef IP_OPT_TS
# undef IP_OPT_RR
# undef IP_OPT_SSRR
#else
# include <sys/param.h>
# include <sys/types.h>
# include <sys/socket.h>
# include <netinet/in.h>
# include <arpa/inet.h>
# include <netdb.h>
# ifdef __bsdi__
# include <machine/types.h>
typedef u_int8_t uint8_t;
typedef u_int16_t uint16_t;
typedef u_int32_t uint32_t;
typedef u_int64_t uint64_t;
# else
# include <inttypes.h>
# endif
#endif
#define DNET_LIL_ENDIAN 1234
#define DNET_BIG_ENDIAN 4321
/* BSD and IRIX */
#ifdef BYTE_ORDER
#if BYTE_ORDER == LITTLE_ENDIAN
# define DNET_BYTESEX DNET_LIL_ENDIAN
#elif BYTE_ORDER == BIG_ENDIAN
# define DNET_BYTESEX DNET_BIG_ENDIAN
#endif
#endif
/* Linux */
#ifdef __BYTE_ORDER
#if __BYTE_ORDER == __LITTLE_ENDIAN
# define DNET_BYTESEX DNET_LIL_ENDIAN
#elif __BYTE_ORDER == __BIG_ENDIAN
# define DNET_BYTESEX DNET_BIG_ENDIAN
#endif
#endif
/* Solaris */
#if defined(_BIT_FIELDS_LTOH)
# define DNET_BYTESEX DNET_LIL_ENDIAN
#elif defined (_BIT_FIELDS_HTOL)
# define DNET_BYTESEX DNET_BIG_ENDIAN
#endif
/* Nastiness from old BIND code. */
#ifndef DNET_BYTESEX
# if defined(vax) || defined(ns32000) || defined(sun386) || defined(i386) || \
defined(MIPSEL) || defined(_MIPSEL) || defined(BIT_ZERO_ON_RIGHT) || \
defined(__alpha__) || defined(__alpha)
# define DNET_BYTESEX DNET_LIL_ENDIAN
# elif defined(sel) || defined(pyr) || defined(mc68000) || defined(sparc) || \
defined(is68k) || defined(tahoe) || defined(ibm032) || defined(ibm370) || \
defined(MIPSEB) || defined(_MIPSEB) || defined(_IBMR2) || defined(DGUX) ||\
defined(apollo) || defined(__convex__) || defined(_CRAY) || \
defined(__hppa) || defined(__hp9000) || \
defined(__hp9000s300) || defined(__hp9000s700) || defined(__ia64) || \
defined (BIT_ZERO_ON_LEFT) || defined(m68k)
# define DNET_BYTESEX DNET_BIG_ENDIAN
# else
# error "bytesex unknown"
# endif
#endif
/* C++ support. */
#undef __BEGIN_DECLS
#undef __END_DECLS
#ifdef __cplusplus
# define __BEGIN_DECLS extern "C" {
# define __END_DECLS } /* extern "C" */
#else
# define __BEGIN_DECLS
# define __END_DECLS
#endif
/* Support for flexible arrays. */
#undef __flexarr
#if !defined(__clang__) && defined(__GNUC__) && \
((__GNUC__ > 2) || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97))
/* GCC 2.97 supports C99 flexible array members. */
# define __flexarr []
#else
# ifdef __GNUC__
# define __flexarr [0]
# else
# if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L
# define __flexarr []
# else
/* Some other non-C99 compiler. Approximate with [1]. */
# define __flexarr [1]
# endif
# endif
#endif
#endif /* DNET_OS_H */