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