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This version supports FreeBSD.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6721 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Brian Gaeke 2003-06-16 21:14:57 +00:00
parent 246fcca318
commit 6d3b7fa80e
1 changed files with 25 additions and 25 deletions
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50
include/Support/DataTypes.h
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@ -4,10 +4,10 @@
// This file is important because different host OS's define different macros,
// which makes portability tough. This file exports the following definitions:
//
// ENDIAN_LITTLE : is #define'd if the host is little endian
// int64_t : is a typedef for the signed 64 bit system type
// uint64_t : is a typedef for the unsigned 64 bit system type
// INT64_MAX : is a #define specifying the max value for int64_t's
// LITTLE_ENDIAN: is #define'd if the host is little endian
// int64_t : is a typedef for the signed 64 bit system type
// uint64_t : is a typedef for the unsigned 64 bit system type
// INT64_MAX : is a #define specifying the max value for int64_t's
//
// No library is required when using these functinons.
//
@ -29,9 +29,24 @@
# else
# undef LITTLE_ENDIAN
# endif
#else
# if (BSD >= 199103)
# include <machine/endian.h>
#endif
#ifdef __FreeBSD__
# include <machine/endian.h>
# if _BYTE_ORDER == _LITTLE_ENDIAN
# ifndef LITTLE_ENDIAN
# define LITTLE_ENDIAN 1
# endif
# ifdef BIG_ENDIAN
# undef BIG_ENDIAN
# endif
# else
# ifndef BIG_ENDIAN
# define BIG_ENDIAN 1
# endif
# ifdef LITTLE_ENDIAN
# undef LITTLE_ENDIAN
# endif
# endif
#endif
@ -44,26 +59,11 @@
# endif
#endif
//
// Convert the information from the header files into our own local
// endian macros. We do this because various strange systems define both
// BIG_ENDIAN and LITTLE_ENDIAN, and we don't want to conflict with them.
//
// Don't worry; once we introduce autoconf, this will look a lot nicer.
//
#ifdef LITTLE_ENDIAN
#define ENDIAN_LITTLE
#if (defined(LITTLE_ENDIAN) && defined(BIG_ENDIAN))
#error "Cannot define both LITTLE_ENDIAN and BIG_ENDIAN!"
#endif
#ifdef BIG_ENDIAN
#define ENDIAN_BIG
#endif
#if (defined(ENDIAN_LITTLE) && defined(ENDIAN_BIG))
#error "Cannot define both ENDIAN_LITTLE and ENDIAN_BIG!"
#endif
#if (!defined(ENDIAN_LITTLE) && !defined(ENDIAN_BIG)) || !defined(INT64_MAX)
#if (!defined(LITTLE_ENDIAN) && !defined(BIG_ENDIAN)) || !defined(INT64_MAX)
#error "include/Support/DataTypes.h could not determine endianness!"
#endif