319 lines
10 KiB
C
319 lines
10 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2002,2005,2006,2007,2008,2009 Free Software Foundation, Inc.
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*
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* GRUB 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 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef GRUB_TYPES_HEADER
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#define GRUB_TYPES_HEADER 1
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#include <config.h>
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#ifndef GRUB_UTIL
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#include <grub/cpu/types.h>
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#endif
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#ifdef __MINGW32__
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#define GRUB_PACKED __attribute__ ((packed,gcc_struct))
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#else
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#define GRUB_PACKED __attribute__ ((packed))
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#endif
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#ifdef GRUB_BUILD
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# define GRUB_CPU_SIZEOF_VOID_P BUILD_SIZEOF_VOID_P
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# define GRUB_CPU_SIZEOF_LONG BUILD_SIZEOF_LONG
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# if BUILD_WORDS_BIGENDIAN
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# define GRUB_CPU_WORDS_BIGENDIAN 1
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# else
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# undef GRUB_CPU_WORDS_BIGENDIAN
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# endif
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#elif defined (GRUB_UTIL)
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# define GRUB_CPU_SIZEOF_VOID_P SIZEOF_VOID_P
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# define GRUB_CPU_SIZEOF_LONG SIZEOF_LONG
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# ifdef WORDS_BIGENDIAN
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# define GRUB_CPU_WORDS_BIGENDIAN 1
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# else
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# undef GRUB_CPU_WORDS_BIGENDIAN
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# endif
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#else /* ! GRUB_UTIL */
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# define GRUB_CPU_SIZEOF_VOID_P GRUB_TARGET_SIZEOF_VOID_P
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# define GRUB_CPU_SIZEOF_LONG GRUB_TARGET_SIZEOF_LONG
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# ifdef GRUB_TARGET_WORDS_BIGENDIAN
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# define GRUB_CPU_WORDS_BIGENDIAN 1
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# else
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# undef GRUB_CPU_WORDS_BIGENDIAN
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# endif
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#endif /* ! GRUB_UTIL */
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#if GRUB_CPU_SIZEOF_VOID_P != 4 && GRUB_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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#if GRUB_CPU_SIZEOF_LONG != 4 && GRUB_CPU_SIZEOF_LONG != 8
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# error "This architecture is not supported because sizeof(long) != 4 and sizeof(long) != 8"
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#endif
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#if !defined (GRUB_UTIL) && !defined (GRUB_TARGET_WORDSIZE)
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# if GRUB_TARGET_SIZEOF_VOID_P == 4
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# define GRUB_TARGET_WORDSIZE 32
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# elif GRUB_TARGET_SIZEOF_VOID_P == 8
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# define GRUB_TARGET_WORDSIZE 64
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# endif
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#endif
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/* Define various wide integers. */
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typedef signed char grub_int8_t;
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typedef short grub_int16_t;
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typedef int grub_int32_t;
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#if GRUB_CPU_SIZEOF_LONG == 8
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typedef long grub_int64_t;
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#else
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typedef long long grub_int64_t;
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#endif
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typedef unsigned char grub_uint8_t;
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typedef unsigned short grub_uint16_t;
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typedef unsigned grub_uint32_t;
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# define PRIxGRUB_UINT32_T "x"
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# define PRIuGRUB_UINT32_T "u"
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#if GRUB_CPU_SIZEOF_LONG == 8
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typedef unsigned long grub_uint64_t;
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# define PRIxGRUB_UINT64_T "lx"
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# define PRIuGRUB_UINT64_T "lu"
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#else
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typedef unsigned long long grub_uint64_t;
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# define PRIxGRUB_UINT64_T "llx"
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# define PRIuGRUB_UINT64_T "llu"
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#endif
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/* Misc types. */
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#if GRUB_CPU_SIZEOF_VOID_P == 8
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typedef grub_uint64_t grub_addr_t;
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typedef grub_uint64_t grub_size_t;
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typedef grub_int64_t grub_ssize_t;
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# define GRUB_SIZE_MAX 18446744073709551615UL
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# if GRUB_CPU_SIZEOF_LONG == 8
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# define PRIxGRUB_SIZE "lx"
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# define PRIxGRUB_ADDR "lx"
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# define PRIuGRUB_SIZE "lu"
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# define PRIdGRUB_SSIZE "ld"
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# else
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# define PRIxGRUB_SIZE "llx"
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# define PRIxGRUB_ADDR "llx"
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# define PRIuGRUB_SIZE "llu"
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# define PRIdGRUB_SSIZE "lld"
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# endif
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#else
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typedef grub_uint32_t grub_addr_t;
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typedef grub_uint32_t grub_size_t;
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typedef grub_int32_t grub_ssize_t;
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# define GRUB_SIZE_MAX 4294967295UL
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# define PRIxGRUB_SIZE "x"
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# define PRIxGRUB_ADDR "x"
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# define PRIuGRUB_SIZE "u"
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# define PRIdGRUB_SSIZE "d"
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#endif
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#define GRUB_UCHAR_MAX 0xFF
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#define GRUB_USHRT_MAX 65535
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#define GRUB_SHRT_MAX 0x7fff
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#define GRUB_UINT_MAX 4294967295U
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#define GRUB_INT_MAX 0x7fffffff
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#define GRUB_INT32_MIN (-2147483647 - 1)
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#define GRUB_INT32_MAX 2147483647
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#if GRUB_CPU_SIZEOF_LONG == 8
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# define GRUB_ULONG_MAX 18446744073709551615UL
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# define GRUB_LONG_MAX 9223372036854775807L
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# define GRUB_LONG_MIN (-9223372036854775807L - 1)
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#else
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# define GRUB_ULONG_MAX 4294967295UL
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# define GRUB_LONG_MAX 2147483647L
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# define GRUB_LONG_MIN (-2147483647L - 1)
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#endif
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typedef grub_uint64_t grub_properly_aligned_t;
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#define GRUB_PROPERLY_ALIGNED_ARRAY(name, size) grub_properly_aligned_t name[((size) + sizeof (grub_properly_aligned_t) - 1) / sizeof (grub_properly_aligned_t)]
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/* The type for representing a file offset. */
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typedef grub_uint64_t grub_off_t;
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/* The type for representing a disk block address. */
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typedef grub_uint64_t grub_disk_addr_t;
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/* Byte-orders. */
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static inline grub_uint16_t grub_swap_bytes16(grub_uint16_t _x)
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{
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return (grub_uint16_t) ((_x << 8) | (_x >> 8));
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}
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#define grub_swap_bytes16_compile_time(x) ((((x) & 0xff) << 8) | (((x) & 0xff00) >> 8))
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#define grub_swap_bytes32_compile_time(x) ((((x) & 0xff) << 24) | (((x) & 0xff00) << 8) | (((x) & 0xff0000) >> 8) | (((x) & 0xff000000UL) >> 24))
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#define grub_swap_bytes64_compile_time(x) \
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({ \
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grub_uint64_t _x = (x); \
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(grub_uint64_t) ((_x << 56) \
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| ((_x & (grub_uint64_t) 0xFF00ULL) << 40) \
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| ((_x & (grub_uint64_t) 0xFF0000ULL) << 24) \
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| ((_x & (grub_uint64_t) 0xFF000000ULL) << 8) \
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| ((_x & (grub_uint64_t) 0xFF00000000ULL) >> 8) \
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| ((_x & (grub_uint64_t) 0xFF0000000000ULL) >> 24) \
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| ((_x & (grub_uint64_t) 0xFF000000000000ULL) >> 40) \
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| (_x >> 56)); \
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})
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#if (defined(__GNUC__) && (__GNUC__ > 3) && (__GNUC__ > 4 || __GNUC_MINOR__ >= 3)) || defined(__clang__)
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static inline grub_uint32_t grub_swap_bytes32(grub_uint32_t x)
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{
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return __builtin_bswap32(x);
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}
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static inline grub_uint64_t grub_swap_bytes64(grub_uint64_t x)
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{
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return __builtin_bswap64(x);
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}
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#else /* not gcc 4.3 or newer */
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static inline grub_uint32_t grub_swap_bytes32(grub_uint32_t _x)
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{
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return ((_x << 24)
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| ((_x & (grub_uint32_t) 0xFF00UL) << 8)
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| ((_x & (grub_uint32_t) 0xFF0000UL) >> 8)
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| (_x >> 24));
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}
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static inline grub_uint64_t grub_swap_bytes64(grub_uint64_t _x)
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{
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return ((_x << 56)
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| ((_x & (grub_uint64_t) 0xFF00ULL) << 40)
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| ((_x & (grub_uint64_t) 0xFF0000ULL) << 24)
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| ((_x & (grub_uint64_t) 0xFF000000ULL) << 8)
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| ((_x & (grub_uint64_t) 0xFF00000000ULL) >> 8)
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| ((_x & (grub_uint64_t) 0xFF0000000000ULL) >> 24)
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| ((_x & (grub_uint64_t) 0xFF000000000000ULL) >> 40)
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| (_x >> 56));
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}
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#endif /* not gcc 4.3 or newer */
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#ifdef GRUB_CPU_WORDS_BIGENDIAN
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# define grub_cpu_to_le16(x) grub_swap_bytes16(x)
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# define grub_cpu_to_le32(x) grub_swap_bytes32(x)
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# define grub_cpu_to_le64(x) grub_swap_bytes64(x)
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# define grub_le_to_cpu16(x) grub_swap_bytes16(x)
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# define grub_le_to_cpu32(x) grub_swap_bytes32(x)
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# define grub_le_to_cpu64(x) grub_swap_bytes64(x)
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# define grub_cpu_to_be16(x) ((grub_uint16_t) (x))
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# define grub_cpu_to_be32(x) ((grub_uint32_t) (x))
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# define grub_cpu_to_be64(x) ((grub_uint64_t) (x))
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# define grub_be_to_cpu16(x) ((grub_uint16_t) (x))
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# define grub_be_to_cpu32(x) ((grub_uint32_t) (x))
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# define grub_be_to_cpu64(x) ((grub_uint64_t) (x))
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# define grub_cpu_to_be16_compile_time(x) ((grub_uint16_t) (x))
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# define grub_cpu_to_be32_compile_time(x) ((grub_uint32_t) (x))
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# define grub_cpu_to_be64_compile_time(x) ((grub_uint64_t) (x))
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# define grub_be_to_cpu64_compile_time(x) ((grub_uint64_t) (x))
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# define grub_cpu_to_le32_compile_time(x) grub_swap_bytes32_compile_time(x)
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# define grub_cpu_to_le64_compile_time(x) grub_swap_bytes64_compile_time(x)
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# define grub_cpu_to_le16_compile_time(x) grub_swap_bytes16_compile_time(x)
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#else /* ! WORDS_BIGENDIAN */
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# define grub_cpu_to_le16(x) ((grub_uint16_t) (x))
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# define grub_cpu_to_le32(x) ((grub_uint32_t) (x))
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# define grub_cpu_to_le64(x) ((grub_uint64_t) (x))
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# define grub_le_to_cpu16(x) ((grub_uint16_t) (x))
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# define grub_le_to_cpu32(x) ((grub_uint32_t) (x))
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# define grub_le_to_cpu64(x) ((grub_uint64_t) (x))
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# define grub_cpu_to_be16(x) grub_swap_bytes16(x)
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# define grub_cpu_to_be32(x) grub_swap_bytes32(x)
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# define grub_cpu_to_be64(x) grub_swap_bytes64(x)
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# define grub_be_to_cpu16(x) grub_swap_bytes16(x)
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# define grub_be_to_cpu32(x) grub_swap_bytes32(x)
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# define grub_be_to_cpu64(x) grub_swap_bytes64(x)
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# define grub_cpu_to_be16_compile_time(x) grub_swap_bytes16_compile_time(x)
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# define grub_cpu_to_be32_compile_time(x) grub_swap_bytes32_compile_time(x)
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# define grub_cpu_to_be64_compile_time(x) grub_swap_bytes64_compile_time(x)
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# define grub_be_to_cpu64_compile_time(x) grub_swap_bytes64_compile_time(x)
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# define grub_cpu_to_le16_compile_time(x) ((grub_uint16_t) (x))
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# define grub_cpu_to_le32_compile_time(x) ((grub_uint32_t) (x))
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# define grub_cpu_to_le64_compile_time(x) ((grub_uint64_t) (x))
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#endif /* ! WORDS_BIGENDIAN */
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struct grub_unaligned_uint16
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{
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grub_uint16_t val;
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} GRUB_PACKED;
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struct grub_unaligned_uint32
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{
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grub_uint32_t val;
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} GRUB_PACKED;
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struct grub_unaligned_uint64
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{
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grub_uint64_t val;
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} GRUB_PACKED;
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typedef struct grub_unaligned_uint16 grub_unaligned_uint16_t;
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typedef struct grub_unaligned_uint32 grub_unaligned_uint32_t;
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typedef struct grub_unaligned_uint64 grub_unaligned_uint64_t;
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static inline grub_uint16_t grub_get_unaligned16 (const void *ptr)
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{
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const struct grub_unaligned_uint16 *dd
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= (const struct grub_unaligned_uint16 *) ptr;
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return dd->val;
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}
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static inline void grub_set_unaligned16 (void *ptr, grub_uint16_t val)
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{
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struct grub_unaligned_uint16 *dd = (struct grub_unaligned_uint16 *) ptr;
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dd->val = val;
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}
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static inline grub_uint32_t grub_get_unaligned32 (const void *ptr)
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{
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const struct grub_unaligned_uint32 *dd
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= (const struct grub_unaligned_uint32 *) ptr;
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return dd->val;
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}
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static inline void grub_set_unaligned32 (void *ptr, grub_uint32_t val)
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{
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struct grub_unaligned_uint32 *dd = (struct grub_unaligned_uint32 *) ptr;
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dd->val = val;
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}
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static inline grub_uint64_t grub_get_unaligned64 (const void *ptr)
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{
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const struct grub_unaligned_uint64 *dd
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= (const struct grub_unaligned_uint64 *) ptr;
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return dd->val;
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}
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static inline void grub_set_unaligned64 (void *ptr, grub_uint64_t val)
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{
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struct grub_unaligned_uint64_t
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{
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grub_uint64_t d;
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} GRUB_PACKED;
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struct grub_unaligned_uint64_t *dd = (struct grub_unaligned_uint64_t *) ptr;
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dd->d = val;
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}
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#define GRUB_CHAR_BIT 8
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#endif /* ! GRUB_TYPES_HEADER */
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