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Diffstat (limited to 'include/grub/types.h')
| -rw-r--r-- | include/grub/types.h | 218 |
1 files changed, 218 insertions, 0 deletions
diff --git a/include/grub/types.h b/include/grub/types.h new file mode 100644 index 0000000..8632eac --- /dev/null +++ b/include/grub/types.h @@ -0,0 +1,218 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2002,2005,2006,2007,2008,2009 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef GRUB_TYPES_HEADER +#define GRUB_TYPES_HEADER 1 + +#include <config.h> +#include <grub/cpu/types.h> + +#ifdef GRUB_UTIL +# define GRUB_CPU_SIZEOF_VOID_P SIZEOF_VOID_P +# define GRUB_CPU_SIZEOF_LONG SIZEOF_LONG +# ifdef WORDS_BIGENDIAN +# define GRUB_CPU_WORDS_BIGENDIAN 1 +# else +# undef GRUB_CPU_WORDS_BIGENDIAN +# endif +#else /* ! GRUB_UTIL */ +# define GRUB_CPU_SIZEOF_VOID_P GRUB_TARGET_SIZEOF_VOID_P +# define GRUB_CPU_SIZEOF_LONG GRUB_TARGET_SIZEOF_LONG +# ifdef GRUB_TARGET_WORDS_BIGENDIAN +# define GRUB_CPU_WORDS_BIGENDIAN 1 +# else +# undef GRUB_CPU_WORDS_BIGENDIAN +# endif +#endif /* ! GRUB_UTIL */ + +#if GRUB_CPU_SIZEOF_VOID_P != GRUB_CPU_SIZEOF_LONG +# error "This architecture is not supported because sizeof(void *) != sizeof(long)" +#endif + +#if GRUB_CPU_SIZEOF_VOID_P != 4 && GRUB_CPU_SIZEOF_VOID_P != 8 +# error "This architecture is not supported because sizeof(void *) != 4 and sizeof(void *) != 8" +#endif + +#ifndef GRUB_TARGET_WORDSIZE +# if GRUB_TARGET_SIZEOF_VOID_P == 4 +# define GRUB_TARGET_WORDSIZE 32 +# elif GRUB_TARGET_SIZEOF_VOID_P == 8 +# define GRUB_TARGET_WORDSIZE 64 +# endif +#endif + +/* Define various wide integers. */ +typedef signed char grub_int8_t; +typedef short grub_int16_t; +typedef int grub_int32_t; +#if GRUB_CPU_SIZEOF_LONG == 8 +typedef long grub_int64_t; +#else +typedef long long grub_int64_t; +#endif + +typedef unsigned char grub_uint8_t; +typedef unsigned short grub_uint16_t; +typedef unsigned grub_uint32_t; +# define PRIxGRUB_UINT32_T "x" +# define PRIuGRUB_UINT32_T "u" +#if GRUB_CPU_SIZEOF_LONG == 8 +typedef unsigned long grub_uint64_t; +# define PRIxGRUB_UINT64_T "lx" +# define PRIuGRUB_UINT64_T "lu" +#else +typedef unsigned long long grub_uint64_t; +# define PRIxGRUB_UINT64_T "llx" +# define PRIuGRUB_UINT64_T "llu" +#endif + +/* Misc types. */ +#if GRUB_TARGET_SIZEOF_VOID_P == 8 +typedef grub_uint64_t grub_target_addr_t; +typedef grub_uint64_t grub_target_size_t; +typedef grub_int64_t grub_target_ssize_t; +#else +typedef grub_uint32_t grub_target_addr_t; +typedef grub_uint32_t grub_target_size_t; +typedef grub_int32_t grub_target_ssize_t; +#endif + +#if GRUB_CPU_SIZEOF_VOID_P == 8 +typedef grub_uint64_t grub_addr_t; +typedef grub_uint64_t grub_size_t; +typedef grub_int64_t grub_ssize_t; + +# if GRUB_CPU_SIZEOF_LONG == 8 +# define PRIxGRUB_SIZE "lx" +# define PRIuGRUB_SIZE "lu" +# else +# define PRIxGRUB_SIZE "llx" +# define PRIuGRUB_SIZE "llu" +# endif +#else +typedef grub_uint32_t grub_addr_t; +typedef grub_uint32_t grub_size_t; +typedef grub_int32_t grub_ssize_t; + +# define PRIxGRUB_SIZE "x" +# define PRIuGRUB_SIZE "u" +#endif + +#if GRUB_CPU_SIZEOF_LONG == 8 +# define GRUB_ULONG_MAX 18446744073709551615UL +# define GRUB_LONG_MAX 9223372036854775807L +# define GRUB_LONG_MIN (-9223372036854775807L - 1) +#else +# define GRUB_ULONG_MAX 4294967295UL +# define GRUB_LONG_MAX 2147483647L +# define GRUB_LONG_MIN (-2147483647L - 1) +#endif + +#if GRUB_CPU_SIZEOF_VOID_P == 4 +#define UINT_TO_PTR(x) ((void*)(grub_uint32_t)(x)) +#define PTR_TO_UINT64(x) ((grub_uint64_t)(grub_uint32_t)(x)) +#define PTR_TO_UINT32(x) ((grub_uint32_t)(x)) +#else +#define UINT_TO_PTR(x) ((void*)(grub_uint64_t)(x)) +#define PTR_TO_UINT64(x) ((grub_uint64_t)(x)) +#define PTR_TO_UINT32(x) ((grub_uint32_t)(grub_uint64_t)(x)) +#endif + +/* The type for representing a file offset. */ +typedef grub_uint64_t grub_off_t; + +/* The type for representing a disk block address. */ +typedef grub_uint64_t grub_disk_addr_t; + +/* Byte-orders. */ +#define grub_swap_bytes16(x) \ +({ \ + grub_uint16_t _x = (x); \ + (grub_uint16_t) ((_x << 8) | (_x >> 8)); \ +}) + +#define grub_swap_bytes16_compile_time(x) ((((x) & 0xff) << 8) | (((x) & 0xff00) >> 8)) +#define grub_swap_bytes32_compile_time(x) ((((x) & 0xff) << 24) | (((x) & 0xff00) << 8) | (((x) & 0xff0000) >> 8) | (((x) & 0xff000000UL) >> 24)) + +#if defined(__GNUC__) && (__GNUC__ > 3) && (__GNUC__ > 4 || __GNUC_MINOR__ >= 3) +static inline grub_uint32_t grub_swap_bytes32(grub_uint32_t x) +{ + return __builtin_bswap32(x); +} + +static inline grub_uint64_t grub_swap_bytes64(grub_uint64_t x) +{ + return __builtin_bswap64(x); +} +#else /* not gcc 4.3 or newer */ +#define grub_swap_bytes32(x) \ +({ \ + grub_uint32_t _x = (x); \ + (grub_uint32_t) ((_x << 24) \ + | ((_x & (grub_uint32_t) 0xFF00UL) << 8) \ + | ((_x & (grub_uint32_t) 0xFF0000UL) >> 8) \ + | (_x >> 24)); \ +}) + +#define grub_swap_bytes64(x) \ +({ \ + grub_uint64_t _x = (x); \ + (grub_uint64_t) ((_x << 56) \ + | ((_x & (grub_uint64_t) 0xFF00ULL) << 40) \ + | ((_x & (grub_uint64_t) 0xFF0000ULL) << 24) \ + | ((_x & (grub_uint64_t) 0xFF000000ULL) << 8) \ + | ((_x & (grub_uint64_t) 0xFF00000000ULL) >> 8) \ + | ((_x & (grub_uint64_t) 0xFF0000000000ULL) >> 24) \ + | ((_x & (grub_uint64_t) 0xFF000000000000ULL) >> 40) \ + | (_x >> 56)); \ +}) +#endif /* not gcc 4.3 or newer */ + +#ifdef GRUB_CPU_WORDS_BIGENDIAN +# define grub_cpu_to_le16(x) grub_swap_bytes16(x) +# define grub_cpu_to_le32(x) grub_swap_bytes32(x) +# define grub_cpu_to_le64(x) grub_swap_bytes64(x) +# define grub_le_to_cpu16(x) grub_swap_bytes16(x) +# define grub_le_to_cpu32(x) grub_swap_bytes32(x) +# define grub_le_to_cpu64(x) grub_swap_bytes64(x) +# define grub_cpu_to_be16(x) ((grub_uint16_t) (x)) +# define grub_cpu_to_be32(x) ((grub_uint32_t) (x)) +# define grub_cpu_to_be64(x) ((grub_uint64_t) (x)) +# define grub_be_to_cpu16(x) ((grub_uint16_t) (x)) +# define grub_be_to_cpu32(x) ((grub_uint32_t) (x)) +# define grub_be_to_cpu64(x) ((grub_uint64_t) (x)) +# define grub_cpu_to_le32_compile_time(x) grub_swap_bytes32_compile_time(x) +# define grub_cpu_to_le16_compile_time(x) grub_swap_bytes16_compile_time(x) +#else /* ! WORDS_BIGENDIAN */ +# define grub_cpu_to_le16(x) ((grub_uint16_t) (x)) +# define grub_cpu_to_le32(x) ((grub_uint32_t) (x)) +# define grub_cpu_to_le64(x) ((grub_uint64_t) (x)) +# define grub_le_to_cpu16(x) ((grub_uint16_t) (x)) +# define grub_le_to_cpu32(x) ((grub_uint32_t) (x)) +# define grub_le_to_cpu64(x) ((grub_uint64_t) (x)) +# define grub_cpu_to_be16(x) grub_swap_bytes16(x) +# define grub_cpu_to_be32(x) grub_swap_bytes32(x) +# define grub_cpu_to_be64(x) grub_swap_bytes64(x) +# define grub_be_to_cpu16(x) grub_swap_bytes16(x) +# define grub_be_to_cpu32(x) grub_swap_bytes32(x) +# define grub_be_to_cpu64(x) grub_swap_bytes64(x) +# define grub_cpu_to_le16_compile_time(x) ((grub_uint16_t) (x)) +# define grub_cpu_to_le32_compile_time(x) ((grub_uint32_t) (x)) +#endif /* ! WORDS_BIGENDIAN */ + +#endif /* ! GRUB_TYPES_HEADER */ |