/* -----------------------------------------------------------------*-C-*- libffi @VERSION@ - Copyright (c) 1996-1999 Cygnus Solutions $Id: ffi.h.in,v 1.1 1999/08/08 22:58:30 green Exp $ Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the ``Software''), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL CYGNUS SOLUTIONS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ----------------------------------------------------------------------- */ #ifndef LIBFFI_H #define LIBFFI_H #ifdef __cplusplus extern "C" { #endif /* Specify which architecture libffi is configured for. */ #define @TARGET@ /* ---- System configuration information --------------------------------- */ #ifdef PACKAGE #define OLD_PACKAGE PACKAGE #undef PACKAGE #endif #ifdef VERSION #define OLD_VERSION VERSION #undef VERSION #endif #include #undef PACKAGE #undef VERSION #ifdef OLD_PACKAGE #define PACKAGE OLD_PACKAGE #endif #ifdef OLD_VERSION #define VERSION OLD_VERSION #endif #if !defined(LIBFFI_ASM) #include #if defined(FFI_DEBUG) #include #endif #endif /* ---- Generic type definitions ----------------------------------------- */ #define FLOAT32 float #define FLOAT64 double #define FLOAT80 long double #define UINT8 unsigned char #define SINT8 signed char #if SIZEOF_INT == 2 #define UINT16 unsigned int #define SINT16 int #define ffi_type_uint ffi_type_uint16 #define ffi_type_sint ffi_type_sint16 #else #if SIZEOF_SHORT == 2 #define UINT16 unsigned short #define SINT16 short #define ffi_type_ushort ffi_type_uint16 #define ffi_type_sshort ffi_type_sint16 #endif #endif #if SIZEOF_INT == 4 #define UINT32 unsigned int #define SINT32 int #define ffi_type_uint ffi_type_uint32 #define ffi_type_sint ffi_type_sint32 #else #if SIZEOF_SHORT == 4 #define UINT32 unsigned short #define SINT32 short #define ffi_type_ushort ffi_type_uint32 #define ffi_type_sshort ffi_type_sint32 #else #if SIZEOF_LONG == 4 #define UINT32 unsigned long #define SINT32 long #define ffi_type_ulong ffi_type_uint32 #define ffi_type_slong ffi_type_sint32 #endif #endif #endif #if SIZEOF_INT == 8 #define UINT64 unsigned int #define SINT64 int #define ffi_type_uint ffi_type_uint64 #define ffi_type_sint ffi_type_sint64 #else #if SIZEOF_LONG == 8 #define UINT64 unsigned long #define SINT64 long #define ffi_type_ulong ffi_type_uint64 #define ffi_type_slong ffi_type_sint64 #else #if SIZEOF_LONG_LONG == 8 #define UINT64 unsigned long long #define SINT64 long long #define ffi_type_ulong ffi_type_uint64 #define ffi_type_slong ffi_type_sint64 #endif #endif #endif /* ---- System specific configurations ----------------------------------- */ #ifdef MIPS #include #else #define SIZEOF_ARG SIZEOF_VOID_P #endif #ifndef LIBFFI_ASM /* ---- Generic type definitions ----------------------------------------- */ #define ALIGN(v, a) (((((unsigned) (v))-1) | ((a)-1))+1) typedef enum ffi_abi { /* Leave this for debugging purposes */ FFI_FIRST_ABI = 0, /* ---- Sparc -------------------- */ #ifdef SPARC FFI_V8, FFI_DEFAULT_ABI = FFI_V8, FFI_V8PLUS, FFI_V9, #endif /* ---- Intel x86 ---------------- */ #ifdef X86 FFI_SYSV, FFI_DEFAULT_ABI = FFI_SYSV, #endif /* ---- Mips --------------------- */ #ifdef MIPS FFI_O32, FFI_N32, FFI_N64, #endif /* ---- Alpha -------------------- */ #ifdef ALPHA FFI_OSF, FFI_DEFAULT_ABI = FFI_OSF, #endif /* ---- Motorola m68k ------------ */ #ifdef M68K FFI_SYSV, FFI_DEFAULT_ABI = FFI_SYSV, #endif /* ---- PowerPC ------------------ */ #ifdef POWERPC FFI_SYSV, FFI_GCC_SYSV, FFI_DEFAULT_ABI = FFI_GCC_SYSV, #endif /* ---- ARM --------------------- */ #ifdef ARM FFI_SYSV, FFI_DEFAULT_ABI = FFI_SYSV, #endif /* Leave this for debugging purposes */ FFI_LAST_ABI } ffi_abi; typedef struct _ffi_type { size_t size; unsigned short alignment; unsigned short type; /*@null@*/ struct _ffi_type **elements; } ffi_type; /* These are defined in ffi.c */ extern ffi_type ffi_type_void; extern ffi_type ffi_type_uint8; extern ffi_type ffi_type_sint8; extern ffi_type ffi_type_uint16; extern ffi_type ffi_type_sint16; extern ffi_type ffi_type_uint32; extern ffi_type ffi_type_sint32; extern ffi_type ffi_type_uint64; extern ffi_type ffi_type_sint64; extern ffi_type ffi_type_float; extern ffi_type ffi_type_double; extern ffi_type ffi_type_longdouble; extern ffi_type ffi_type_pointer; /* Characters are 8 bit integral types */ #define ffi_type_schar ffi_type_sint8 #define ffi_type_uchar ffi_type_uint8 typedef enum { FFI_OK = 0, FFI_BAD_TYPEDEF, FFI_BAD_ABI } ffi_status; typedef unsigned FFI_TYPE; typedef struct { ffi_abi abi; unsigned nargs; /*@dependent@*/ ffi_type **arg_types; /*@dependent@*/ ffi_type *rtype; unsigned bytes; unsigned flags; #ifdef MIPS #if _MIPS_SIM == _ABIN32 unsigned rstruct_flag; #endif #endif } ffi_cif; /* ---- Definitions for the raw API -------------------------------------- */ #if !FFI_NO_RAW_API #if SIZEOF_ARG == 4 #define UINT_ARG UINT32 #define SINT_ARG SINT32 #endif #if SIZEOF_ARG == 8 #define UINT_ARG UINT64 #define SINT_ARG SINT64 #endif typedef union { SINT_ARG sint; UINT_ARG uint; char data[SIZEOF_ARG]; void* ptr; } ffi_raw; void ffi_raw_call (/*@dependent@*/ ffi_cif *cif, void (*fn)(), /*@out@*/ void *rvalue, /*@dependent@*/ ffi_raw *avalue); void ffi_ptrarray_to_raw (ffi_cif *cif, void **args, ffi_raw *raw); void ffi_raw_to_ptrarray (ffi_cif *cif, ffi_raw *raw, void **args); size_t ffi_raw_size (ffi_cif *cif); #endif /* !FFI_NO_RAW_API */ /* ---- Definitions for closures ----------------------------------------- */ #ifdef X86 #define FFI_CLOSURES 1 /* x86 supports closures */ #define FFI_TRAMPOLINE_SIZE 10 #define FFI_NATIVE_RAW_API 1 /* and has native raw api support */ #else #define FFI_CLOSURES 0 #define FFI_NATIVE_RAW_API 0 #endif #if FFI_CLOSURES typedef struct { char tramp[FFI_TRAMPOLINE_SIZE]; ffi_cif *cif; void (*fun)(ffi_cif*,void*,void**,void*); void *user_data; } ffi_closure; ffi_status ffi_prep_closure (ffi_closure*, ffi_cif *, void (*fun)(ffi_cif*,void*,void**,void*), void *user_data); #if !FFI_NO_RAW_API typedef struct { char tramp[FFI_TRAMPOLINE_SIZE]; ffi_cif *cif; #if !FFI_NATIVE_RAW_API /* if this is enabled, then a raw closure has the same layout as a regular closure. We use this to install an intermediate handler to do the transaltion, void** -> ffi_raw*. */ void (*translate_args)(ffi_cif*,void*,void**,void*); void *this_closure; #endif void (*fun)(ffi_cif*,void*,ffi_raw*,void*); void *user_data; } ffi_raw_closure; ffi_status ffi_prep_raw_closure (ffi_raw_closure*, ffi_cif *cif, void (*fun)(ffi_cif*,void*,ffi_raw*,void*), void *user_data); #endif /* !FFI_NO_RAW_API */ #endif /* FFI_CLOSURES */ /* ---- Public interface definition -------------------------------------- */ ffi_status ffi_prep_cif(/*@out@*/ /*@partial@*/ ffi_cif *cif, ffi_abi abi, unsigned int nargs, /*@dependent@*/ /*@out@*/ /*@partial@*/ ffi_type *rtype, /*@dependent@*/ ffi_type **atypes); void ffi_call(/*@dependent@*/ ffi_cif *cif, void (*fn)(), /*@out@*/ void *rvalue, /*@dependent@*/ void **avalue); /* Useful for eliminating compiler warnings */ #define FFI_FN(f) ((void (*)())f) /* ---- Definitions shared with assembly code ---------------------------- */ #endif #define FFI_TYPE_VOID 0 #define FFI_TYPE_INT 1 #define FFI_TYPE_FLOAT 2 #define FFI_TYPE_DOUBLE 3 #if SIZEOF_LONG_DOUBLE == SIZEOF_DOUBLE #define FFI_TYPE_LONGDOUBLE FFI_TYPE_DOUBLE #else #define FFI_TYPE_LONGDOUBLE 4 #endif #define FFI_TYPE_UINT8 5 /* If this changes, update ffi_mips.h. */ #define FFI_TYPE_SINT8 6 /* If this changes, update ffi_mips.h. */ #define FFI_TYPE_UINT16 7 #define FFI_TYPE_SINT16 8 #define FFI_TYPE_UINT32 9 #define FFI_TYPE_SINT32 10 #define FFI_TYPE_UINT64 11 #define FFI_TYPE_SINT64 12 #define FFI_TYPE_STRUCT 13 /* If this changes, update ffi_mips.h. */ #define FFI_TYPE_POINTER 14 /* This should always refer to the last type code (for sanity checks) */ #define FFI_TYPE_LAST FFI_TYPE_POINTER #ifdef __cplusplus } #endif #endif