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Diffstat (limited to 'qemu/include/exec/user/thunk.h')
| -rw-r--r-- | qemu/include/exec/user/thunk.h | 190 |
1 files changed, 0 insertions, 190 deletions
diff --git a/qemu/include/exec/user/thunk.h b/qemu/include/exec/user/thunk.h deleted file mode 100644 index ad1d60266..000000000 --- a/qemu/include/exec/user/thunk.h +++ /dev/null @@ -1,190 +0,0 @@ -/* - * Generic thunking code to convert data between host and target CPU - * - * Copyright (c) 2003 Fabrice Bellard - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library 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 - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, see <http://www.gnu.org/licenses/>. - */ -#ifndef THUNK_H -#define THUNK_H - -#include "cpu.h" - -/* types enums definitions */ - -typedef enum argtype { - TYPE_NULL, - TYPE_CHAR, - TYPE_SHORT, - TYPE_INT, - TYPE_LONG, - TYPE_ULONG, - TYPE_PTRVOID, /* pointer on unknown data */ - TYPE_LONGLONG, - TYPE_ULONGLONG, - TYPE_PTR, - TYPE_ARRAY, - TYPE_STRUCT, - TYPE_OLDDEVT, -} argtype; - -#define MK_PTR(type) TYPE_PTR, type -#define MK_ARRAY(type, size) TYPE_ARRAY, size, type -#define MK_STRUCT(id) TYPE_STRUCT, id - -#define THUNK_TARGET 0 -#define THUNK_HOST 1 - -typedef struct { - /* standard struct handling */ - const argtype *field_types; - int nb_fields; - int *field_offsets[2]; - /* special handling */ - void (*convert[2])(void *dst, const void *src); - int size[2]; - int align[2]; - const char *name; -} StructEntry; - -/* Translation table for bitmasks... */ -typedef struct bitmask_transtbl { - unsigned int x86_mask; - unsigned int x86_bits; - unsigned int alpha_mask; - unsigned int alpha_bits; -} bitmask_transtbl; - -void thunk_register_struct(int id, const char *name, const argtype *types); -void thunk_register_struct_direct(int id, const char *name, - const StructEntry *se1); -const argtype *thunk_convert(void *dst, const void *src, - const argtype *type_ptr, int to_host); -#ifndef NO_THUNK_TYPE_SIZE - -extern StructEntry *struct_entries; - -int thunk_type_size_array(const argtype *type_ptr, int is_host); -int thunk_type_align_array(const argtype *type_ptr, int is_host); - -static inline int thunk_type_size(const argtype *type_ptr, int is_host) -{ - int type, size; - const StructEntry *se; - - type = *type_ptr; - switch(type) { - case TYPE_CHAR: - return 1; - case TYPE_SHORT: - return 2; - case TYPE_INT: - return 4; - case TYPE_LONGLONG: - case TYPE_ULONGLONG: - return 8; - case TYPE_LONG: - case TYPE_ULONG: - case TYPE_PTRVOID: - case TYPE_PTR: - if (is_host) { - return sizeof(void *); - } else { - return TARGET_ABI_BITS / 8; - } - break; - case TYPE_OLDDEVT: - if (is_host) { -#if defined(HOST_X86_64) - return 8; -#elif defined(HOST_ALPHA) || defined(HOST_IA64) || defined(HOST_MIPS) || \ - defined(HOST_PARISC) || defined(HOST_SPARC64) - return 4; -#elif defined(HOST_PPC) - return sizeof(void *); -#else - return 2; -#endif - } else { -#if defined(TARGET_X86_64) - return 8; -#elif defined(TARGET_ALPHA) || defined(TARGET_IA64) || defined(TARGET_MIPS) || \ - defined(TARGET_PARISC) || defined(TARGET_SPARC64) - return 4; -#elif defined(TARGET_PPC) - return TARGET_ABI_BITS / 8; -#else - return 2; -#endif - } - break; - case TYPE_ARRAY: - size = type_ptr[1]; - return size * thunk_type_size_array(type_ptr + 2, is_host); - case TYPE_STRUCT: - se = struct_entries + type_ptr[1]; - return se->size[is_host]; - default: - return -1; - } -} - -static inline int thunk_type_align(const argtype *type_ptr, int is_host) -{ - int type; - const StructEntry *se; - - type = *type_ptr; - switch(type) { - case TYPE_CHAR: - return 1; - case TYPE_SHORT: - return 2; - case TYPE_INT: - return 4; - case TYPE_LONGLONG: - case TYPE_ULONGLONG: - return 8; - case TYPE_LONG: - case TYPE_ULONG: - case TYPE_PTRVOID: - case TYPE_PTR: - if (is_host) { - return sizeof(void *); - } else { - return TARGET_ABI_BITS / 8; - } - break; - case TYPE_OLDDEVT: - return thunk_type_size(type_ptr, is_host); - case TYPE_ARRAY: - return thunk_type_align_array(type_ptr + 2, is_host); - case TYPE_STRUCT: - se = struct_entries + type_ptr[1]; - return se->align[is_host]; - default: - return -1; - } -} - -#endif /* NO_THUNK_TYPE_SIZE */ - -unsigned int target_to_host_bitmask(unsigned int x86_mask, - const bitmask_transtbl * trans_tbl); -unsigned int host_to_target_bitmask(unsigned int alpha_mask, - const bitmask_transtbl * trans_tbl); - -void thunk_init(unsigned int max_structs); - -#endif |