diff options
author | bellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162> | 2003-02-18 22:55:36 +0000 |
---|---|---|
committer | bellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162> | 2003-02-18 22:55:36 +0000 |
commit | 31e31b8a248ffa216223dad49f75efbdfca5df23 (patch) | |
tree | 7a2e4a2e20da5bd5d61f906f6d75dab2d3418e5f /thunk.h | |
parent | e63c3dc74bfb90e4522d075d0d5a7600c5145745 (diff) | |
download | qemu-31e31b8a248ffa216223dad49f75efbdfca5df23.zip qemu-31e31b8a248ffa216223dad49f75efbdfca5df23.tar.gz qemu-31e31b8a248ffa216223dad49f75efbdfca5df23.tar.bz2 |
This commit was generated by cvs2svn to compensate for changes in r2,
which included commits to RCS files with non-trunk default branches.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'thunk.h')
-rw-r--r-- | thunk.h | 195 |
1 files changed, 195 insertions, 0 deletions
@@ -0,0 +1,195 @@ +#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 + +/* 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, +} 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, 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); + +#endif |