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include/grub/types.h
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141
include/grub/types.h
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/*
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* PUPA -- Preliminary Universal Programming Architecture for GRUB
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* Copyright (C) 2002 Yoshinori K. Okuji <okuji@enbug.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef PUPA_TYPES_HEADER
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#define PUPA_TYPES_HEADER 1
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#include <config.h>
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#include <pupa/cpu/types.h>
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#ifdef PUPA_UTIL
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# define PUPA_CPU_SIZEOF_VOID_P SIZEOF_VOID_P
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# define PUPA_CPU_SIZEOF_LONG SIZEOF_LONG
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# ifdef WORDS_BIGENDIAN
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# define PUPA_CPU_WORDS_BIGENDIAN 1
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# else
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# undef PUPA_CPU_WORDS_BIGENDIAN
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# endif
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#else /* ! PUPA_UTIL */
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# define PUPA_CPU_SIZEOF_VOID_P PUPA_HOST_SIZEOF_VOID_P
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# define PUPA_CPU_SIZEOF_LONG PUPA_HOST_SIZEOF_LONG
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# ifdef PUPA_HOST_WORDS_BIGENDIAN
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# define PUPA_CPU_WORDS_BIGENDIAN 1
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# else
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# undef PUPA_CPU_WORDS_BIGENDIAN
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# endif
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#endif /* ! PUPA_UTIL */
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#if PUPA_CPU_SIZEOF_VOID_P != PUPA_CPU_SIZEOF_LONG
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# error "This architecture is not supported because sizeof(void *) != sizeof(long)"
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#endif
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#if PUPA_CPU_SIZEOF_VOID_P != 4 && PUPA_CPU_SIZEOF_VOID_P != 8
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# error "This architecture is not supported because sizeof(void *) != 4 and sizeof(void *) != 8"
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#endif
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/* Define various wide integers. */
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typedef signed char pupa_int8_t;
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typedef short pupa_int16_t;
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typedef int pupa_int32_t;
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#if PUPA_CPU_SIZEOF_VOID_P == 8
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typedef long pupa_int64_t;
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#else
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typedef long long pupa_int64_t;
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#endif
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typedef unsigned char pupa_uint8_t;
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typedef unsigned short pupa_uint16_t;
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typedef unsigned pupa_uint32_t;
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#if PUPA_CPU_SIZEOF_VOID_P == 8
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typedef unsigned long pupa_uint64_t;
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#else
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typedef unsigned long long pupa_uint64_t;
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#endif
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/* Misc types. */
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#if PUPA_HOST_SIZE_OF_VOID_P == 8
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typedef pupa_uint64_t pupa_addr_t;
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typedef pupa_uint64_t pupa_off_t;
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typedef pupa_uint64_t pupa_size_t;
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typedef pupa_int64_t pupa_ssize_t;
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#else
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typedef pupa_uint32_t pupa_addr_t;
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typedef pupa_uint32_t pupa_off_t;
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typedef pupa_uint32_t pupa_size_t;
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typedef pupa_int32_t pupa_ssize_t;
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#endif
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/* Byte-orders. */
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#define pupa_swap_bytes16(x) \
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({ \
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pupa_uint16_t _x = (x); \
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(_x << 8) | (_x >> 8); \
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})
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#define pupa_swap_bytes32(x) \
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({ \
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pupa_uint32_t _x = (x); \
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(pupa_uint32_t) ((_x << 24) \
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| ((_x & (pupa_uint32_t) 0xFF00UL) << 8) \
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| ((_x & (pupa_uint32_t) 0xFF0000UL) >> 8) \
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| (_x >> 24)); \
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})
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#define pupa_swap_bytes64(x) \
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({ \
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pupa_uint64_t _x = (x); \
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(pupa_uint64_t) ((_x << 56) \
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| ((_x & (pupa_uint64_t) 0xFF00ULL) << 40) \
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| ((_x & (pupa_uint64_t) 0xFF0000ULL) << 24) \
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| ((_x & (pupa_uint64_t) 0xFF000000ULL) << 8) \
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| ((_x & (pupa_uint64_t) 0xFF00000000ULL) >> 8) \
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| ((_x & (pupa_uint64_t) 0xFF0000000000ULL) >> 24) \
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| ((_x & (pupa_uint64_t) 0xFF000000000000ULL) >> 40) \
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| (_x >> 56)); \
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})
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#ifdef PUPA_CPU_WORDS_BIGENDIAN
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# define pupa_cpu_to_le16(x) pupa_swap_bytes16(x)
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# define pupa_cpu_to_le32(x) pupa_swap_bytes32(x)
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# define pupa_cpu_to_le64(x) pupa_swap_bytes64(x)
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# define pupa_le_to_cpu16(x) pupa_swap_bytes16(x)
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# define pupa_le_to_cpu32(x) pupa_swap_bytes32(x)
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# define pupa_le_to_cpu64(x) pupa_swap_bytes64(x)
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# define pupa_cpu_to_be16(x) ((pupa_uint16_t) (x))
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# define pupa_cpu_to_be32(x) ((pupa_uint32_t) (x))
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# define pupa_cpu_to_be64(x) ((pupa_uint64_t) (x))
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# define pupa_be_to_cpu16(x) ((pupa_uint16_t) (x))
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# define pupa_be_to_cpu32(x) ((pupa_uint32_t) (x))
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# define pupa_be_to_cpu64(x) ((pupa_uint64_t) (x))
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#else /* ! WORDS_BIGENDIAN */
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# define pupa_cpu_to_le16(x) ((pupa_uint16_t) (x))
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# define pupa_cpu_to_le32(x) ((pupa_uint32_t) (x))
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# define pupa_cpu_to_le64(x) ((pupa_uint64_t) (x))
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# define pupa_le_to_cpu16(x) ((pupa_uint16_t) (x))
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# define pupa_le_to_cpu32(x) ((pupa_uint32_t) (x))
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# define pupa_le_to_cpu64(x) ((pupa_uint64_t) (x))
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# define pupa_cpu_to_be16(x) pupa_swap_bytes16(x)
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# define pupa_cpu_to_be32(x) pupa_swap_bytes32(x)
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# define pupa_cpu_to_be64(x) pupa_swap_bytes64(x)
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# define pupa_be_to_cpu16(x) pupa_swap_bytes16(x)
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# define pupa_be_to_cpu32(x) pupa_swap_bytes32(x)
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# define pupa_be_to_cpu64(x) pupa_swap_bytes64(x)
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#endif /* ! WORDS_BIGENDIAN */
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#endif /* ! PUPA_TYPES_HEADER */
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