+/*
+ * 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 <inttypes.h>
-#include <byteswap.h>
-
-#undef WORDS_BIGENDIAN
-#if __BYTE_ORDER == __BIG_ENDIAN
-#define WORDS_BIGENDIAN
-#endif
-
-#ifdef WORD_BIGENDIAN
-#define BSWAP_NEEDED
-#endif
-
-/* XXX: auto autoconf */
-#define TARGET_I386
-#define TARGET_LONG_BITS 32
-
-
-#if defined(__alpha__)
-#define HOST_LONG_BITS 64
-#else
-#define HOST_LONG_BITS 32
-#endif
-
-#define TARGET_LONG_SIZE (TARGET_LONG_BITS / 8)
-#define HOST_LONG_SIZE (TARGET_LONG_BITS / 8)
-
-static inline uint16_t bswap16(uint16_t x)
-{
- return bswap_16(x);
-}
-
-static inline uint32_t bswap32(uint32_t x)
-{
- return bswap_32(x);
-}
-
-static inline uint64_t bswap64(uint64_t x)
-{
- return bswap_64(x);
-}
-
-static void inline bswap16s(uint16_t *s)
-{
- *s = bswap16(*s);
-}
-
-static void inline bswap32s(uint32_t *s)
-{
- *s = bswap32(*s);
-}
-
-static void inline bswap64s(uint64_t *s)
-{
- *s = bswap64(*s);
-}
-
-#ifdef BSWAP_NEEDED
-
-static inline uint16_t tswap16(uint16_t s)
-{
- return bswap16(s);
-}
-
-static inline uint32_t tswap32(uint32_t s)
-{
- return bswap32(s);
-}
-
-static inline uint64_t tswap64(uint64_t s)
-{
- return bswap64(s);
-}
-
-static void inline tswap16s(uint16_t *s)
-{
- *s = bswap16(*s);
-}
-
-static void inline tswap32s(uint32_t *s)
-{
- *s = bswap32(*s);
-}
-
-static void inline tswap64s(uint64_t *s)
-{
- *s = bswap64(*s);
-}
-
-#else
-
-static inline uint16_t tswap16(uint16_t s)
-{
- return s;
-}
-
-static inline uint32_t tswap32(uint32_t s)
-{
- return s;
-}
-
-static inline uint64_t tswap64(uint64_t s)
-{
- return s;
-}
-
-static void inline tswap16s(uint16_t *s)
-{
-}
-
-static void inline tswap32s(uint32_t *s)
-{
-}
-
-static void inline tswap64s(uint64_t *s)
-{
-}
-
-#endif
-
-#if TARGET_LONG_SIZE == 4
-#define tswapl(s) tswap32(s)
-#define tswapls(s) tswap32s((uint32_t *)(s))
-#else
-#define tswapl(s) tswap64(s)
-#define tswapls(s) tswap64s((uint64_t *)(s))
-#endif
-
-#if TARGET_LONG_SIZE == 4
-typedef int32_t target_long;
-typedef uint32_t target_ulong;
-#elif TARGET_LONG_SIZE == 8
-typedef int64_t target_long;
-typedef uint64_t target_ulong;
-#else
-#error TARGET_LONG_SIZE undefined
-#endif
+#include "cpu.h"
/* types enums definitions */
} bitmask_transtbl;
void thunk_register_struct(int id, const char *name, const argtype *types);
-void thunk_register_struct_direct(int id, const char *name, StructEntry *se1);
-const argtype *thunk_convert(void *dst, const void *src,
+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);
-
-unsigned int target_to_host_bitmask(unsigned int x86_mask,
- bitmask_transtbl * trans_tbl);
-unsigned int host_to_target_bitmask(unsigned int alpha_mask,
- bitmask_transtbl * trans_tbl);
+#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 HOST_LONG_SIZE;
+ } else {
+ return TARGET_ABI_BITS / 8;
+ }
+ 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 HOST_LONG_SIZE;
+ } else {
+ return TARGET_ABI_BITS / 8;
+ }
+ break;
+ 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);
#endif
projects / qemu.git / blobdiff