OpenCores
URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libffi/] [include/] [ffi.h.in] - Blame information for rev 867

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 732 jeremybenn
/* -----------------------------------------------------------------*-C-*-
2
   libffi @VERSION@ - Copyright (c) 1996-2003, 2007, 2008  Red Hat, Inc.
3
 
4
   Permission is hereby granted, free of charge, to any person obtaining
5
   a copy of this software and associated documentation files (the
6
   ``Software''), to deal in the Software without restriction, including
7
   without limitation the rights to use, copy, modify, merge, publish,
8
   distribute, sublicense, and/or sell copies of the Software, and to
9
   permit persons to whom the Software is furnished to do so, subject to
10
   the following conditions:
11
 
12
   The above copyright notice and this permission notice shall be included
13
   in all copies or substantial portions of the Software.
14
 
15
   THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND,
16
   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17
   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18
   NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
19
   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
20
   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21
   OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22
   DEALINGS IN THE SOFTWARE.
23
 
24
   ----------------------------------------------------------------------- */
25
 
26
/* -------------------------------------------------------------------
27
   The basic API is described in the README file.
28
 
29
   The raw API is designed to bypass some of the argument packing
30
   and unpacking on architectures for which it can be avoided.
31
 
32
   The closure API allows interpreted functions to be packaged up
33
   inside a C function pointer, so that they can be called as C functions,
34
   with no understanding on the client side that they are interpreted.
35
   It can also be used in other cases in which it is necessary to package
36
   up a user specified parameter and a function pointer as a single
37
   function pointer.
38
 
39
   The closure API must be implemented in order to get its functionality,
40
   e.g. for use by gij.  Routines are provided to emulate the raw API
41
   if the underlying platform doesn't allow faster implementation.
42
 
43
   More details on the raw and cloure API can be found in:
44
 
45
   http://gcc.gnu.org/ml/java/1999-q3/msg00138.html
46
 
47
   and
48
 
49
   http://gcc.gnu.org/ml/java/1999-q3/msg00174.html
50
   -------------------------------------------------------------------- */
51
 
52
#ifndef LIBFFI_H
53
#define LIBFFI_H
54
 
55
#ifdef __cplusplus
56
extern "C" {
57
#endif
58
 
59
/* Specify which architecture libffi is configured for. */
60
#ifndef @TARGET@
61
#define @TARGET@
62
#endif
63
 
64
/* ---- System configuration information --------------------------------- */
65
 
66
#include 
67
 
68
#ifndef LIBFFI_ASM
69
 
70
#ifdef _MSC_VER
71
#define __attribute__(X)
72
#endif
73
 
74
#include 
75
#include 
76
 
77
/* LONG_LONG_MAX is not always defined (not if STRICT_ANSI, for example).
78
   But we can find it either under the correct ANSI name, or under GNU
79
   C's internal name.  */
80
#ifdef LONG_LONG_MAX
81
# define FFI_LONG_LONG_MAX LONG_LONG_MAX
82
#else
83
# ifdef LLONG_MAX
84
#  define FFI_LONG_LONG_MAX LLONG_MAX
85
# else
86
#  ifdef __GNUC__
87
#   define FFI_LONG_LONG_MAX __LONG_LONG_MAX__
88
#  endif
89
# endif
90
#endif
91
 
92
/* The closure code assumes that this works on pointers, i.e. a size_t  */
93
/* can hold a pointer.                                                  */
94
 
95
typedef struct _ffi_type
96
{
97
  size_t size;
98
  unsigned short alignment;
99
  unsigned short type;
100
  struct _ffi_type **elements;
101
} ffi_type;
102
 
103
#ifndef LIBFFI_HIDE_BASIC_TYPES
104
#if SCHAR_MAX == 127
105
# define ffi_type_uchar                ffi_type_uint8
106
# define ffi_type_schar                ffi_type_sint8
107
#else
108
 #error "char size not supported"
109
#endif
110
 
111
#if SHRT_MAX == 32767
112
# define ffi_type_ushort       ffi_type_uint16
113
# define ffi_type_sshort       ffi_type_sint16
114
#elif SHRT_MAX == 2147483647
115
# define ffi_type_ushort       ffi_type_uint32
116
# define ffi_type_sshort       ffi_type_sint32
117
#else
118
 #error "short size not supported"
119
#endif
120
 
121
#if INT_MAX == 32767
122
# define ffi_type_uint         ffi_type_uint16
123
# define ffi_type_sint         ffi_type_sint16
124
#elif INT_MAX == 2147483647
125
# define ffi_type_uint         ffi_type_uint32
126
# define ffi_type_sint         ffi_type_sint32
127
#elif INT_MAX == 9223372036854775807
128
# define ffi_type_uint         ffi_type_uint64
129
# define ffi_type_sint         ffi_type_sint64
130
#else
131
 #error "int size not supported"
132
#endif
133
 
134
#if LONG_MAX == 2147483647
135
# if FFI_LONG_LONG_MAX != 9223372036854775807
136
 #error "no 64-bit data type supported"
137
# endif
138
#elif LONG_MAX != 9223372036854775807
139
 #error "long size not supported"
140
#endif
141
 
142
#if LONG_MAX == 2147483647
143
# define ffi_type_ulong        ffi_type_uint32
144
# define ffi_type_slong        ffi_type_sint32
145
#elif LONG_MAX == 9223372036854775807
146
# define ffi_type_ulong        ffi_type_uint64
147
# define ffi_type_slong        ffi_type_sint64
148
#else
149
 #error "long size not supported"
150
#endif
151
 
152
/* These are defined in types.c */
153
extern ffi_type ffi_type_void;
154
extern ffi_type ffi_type_uint8;
155
extern ffi_type ffi_type_sint8;
156
extern ffi_type ffi_type_uint16;
157
extern ffi_type ffi_type_sint16;
158
extern ffi_type ffi_type_uint32;
159
extern ffi_type ffi_type_sint32;
160
extern ffi_type ffi_type_uint64;
161
extern ffi_type ffi_type_sint64;
162
extern ffi_type ffi_type_float;
163
extern ffi_type ffi_type_double;
164
extern ffi_type ffi_type_pointer;
165
 
166
#if @HAVE_LONG_DOUBLE@
167
extern ffi_type ffi_type_longdouble;
168
#else
169
#define ffi_type_longdouble ffi_type_double
170
#endif
171
#endif /* LIBFFI_HIDE_BASIC_TYPES */
172
 
173
typedef enum {
174
  FFI_OK = 0,
175
  FFI_BAD_TYPEDEF,
176
  FFI_BAD_ABI
177
} ffi_status;
178
 
179
typedef unsigned FFI_TYPE;
180
 
181
typedef struct {
182
  ffi_abi abi;
183
  unsigned nargs;
184
  ffi_type **arg_types;
185
  ffi_type *rtype;
186
  unsigned bytes;
187
  unsigned flags;
188
#ifdef FFI_EXTRA_CIF_FIELDS
189
  FFI_EXTRA_CIF_FIELDS;
190
#endif
191
} ffi_cif;
192
 
193
/* ---- Definitions for the raw API -------------------------------------- */
194
 
195
#ifndef FFI_SIZEOF_ARG
196
# if LONG_MAX == 2147483647
197
#  define FFI_SIZEOF_ARG        4
198
# elif LONG_MAX == 9223372036854775807
199
#  define FFI_SIZEOF_ARG        8
200
# endif
201
#endif
202
 
203
#ifndef FFI_SIZEOF_JAVA_RAW
204
#  define FFI_SIZEOF_JAVA_RAW FFI_SIZEOF_ARG
205
#endif
206
 
207
typedef union {
208
  ffi_sarg  sint;
209
  ffi_arg   uint;
210
  float     flt;
211
  char      data[FFI_SIZEOF_ARG];
212
  void*     ptr;
213
} ffi_raw;
214
 
215
#if FFI_SIZEOF_JAVA_RAW == 4 && FFI_SIZEOF_ARG == 8
216
/* This is a special case for mips64/n32 ABI (and perhaps others) where
217
   sizeof(void *) is 4 and FFI_SIZEOF_ARG is 8.  */
218
typedef union {
219
  signed int    sint;
220
  unsigned int  uint;
221
  float         flt;
222
  char          data[FFI_SIZEOF_JAVA_RAW];
223
  void*         ptr;
224
} ffi_java_raw;
225
#else
226
typedef ffi_raw ffi_java_raw;
227
#endif
228
 
229
 
230
void ffi_raw_call (ffi_cif *cif,
231
                   void (*fn)(void),
232
                   void *rvalue,
233
                   ffi_raw *avalue);
234
 
235
void ffi_ptrarray_to_raw (ffi_cif *cif, void **args, ffi_raw *raw);
236
void ffi_raw_to_ptrarray (ffi_cif *cif, ffi_raw *raw, void **args);
237
size_t ffi_raw_size (ffi_cif *cif);
238
 
239
/* This is analogous to the raw API, except it uses Java parameter      */
240
/* packing, even on 64-bit machines.  I.e. on 64-bit machines           */
241
/* longs and doubles are followed by an empty 64-bit word.              */
242
 
243
void ffi_java_raw_call (ffi_cif *cif,
244
                        void (*fn)(void),
245
                        void *rvalue,
246
                        ffi_java_raw *avalue);
247
 
248
void ffi_java_ptrarray_to_raw (ffi_cif *cif, void **args, ffi_java_raw *raw);
249
void ffi_java_raw_to_ptrarray (ffi_cif *cif, ffi_java_raw *raw, void **args);
250
size_t ffi_java_raw_size (ffi_cif *cif);
251
 
252
/* ---- Definitions for closures ----------------------------------------- */
253
 
254
#if FFI_CLOSURES
255
 
256
#ifdef _MSC_VER
257
__declspec(align(8))
258
#endif
259
typedef struct {
260
  char tramp[FFI_TRAMPOLINE_SIZE];
261
  ffi_cif   *cif;
262
  void     (*fun)(ffi_cif*,void*,void**,void*);
263
  void      *user_data;
264
#ifdef __GNUC__
265
} ffi_closure __attribute__((aligned (8)));
266
#else
267
} ffi_closure;
268
#endif
269
 
270
void *ffi_closure_alloc (size_t size, void **code);
271
void ffi_closure_free (void *);
272
 
273
ffi_status
274
ffi_prep_closure (ffi_closure*,
275
                  ffi_cif *,
276
                  void (*fun)(ffi_cif*,void*,void**,void*),
277
                  void *user_data);
278
 
279
ffi_status
280
ffi_prep_closure_loc (ffi_closure*,
281
                      ffi_cif *,
282
                      void (*fun)(ffi_cif*,void*,void**,void*),
283
                      void *user_data,
284
                      void*codeloc);
285
 
286
typedef struct {
287
  char tramp[FFI_TRAMPOLINE_SIZE];
288
 
289
  ffi_cif   *cif;
290
 
291
#if !FFI_NATIVE_RAW_API
292
 
293
  /* if this is enabled, then a raw closure has the same layout
294
     as a regular closure.  We use this to install an intermediate
295
     handler to do the transaltion, void** -> ffi_raw*. */
296
 
297
  void     (*translate_args)(ffi_cif*,void*,void**,void*);
298
  void      *this_closure;
299
 
300
#endif
301
 
302
  void     (*fun)(ffi_cif*,void*,ffi_raw*,void*);
303
  void      *user_data;
304
 
305
} ffi_raw_closure;
306
 
307
typedef struct {
308
  char tramp[FFI_TRAMPOLINE_SIZE];
309
 
310
  ffi_cif   *cif;
311
 
312
#if !FFI_NATIVE_RAW_API
313
 
314
  /* if this is enabled, then a raw closure has the same layout
315
     as a regular closure.  We use this to install an intermediate
316
     handler to do the transaltion, void** -> ffi_raw*. */
317
 
318
  void     (*translate_args)(ffi_cif*,void*,void**,void*);
319
  void      *this_closure;
320
 
321
#endif
322
 
323
  void     (*fun)(ffi_cif*,void*,ffi_java_raw*,void*);
324
  void      *user_data;
325
 
326
} ffi_java_raw_closure;
327
 
328
ffi_status
329
ffi_prep_raw_closure (ffi_raw_closure*,
330
                      ffi_cif *cif,
331
                      void (*fun)(ffi_cif*,void*,ffi_raw*,void*),
332
                      void *user_data);
333
 
334
ffi_status
335
ffi_prep_raw_closure_loc (ffi_raw_closure*,
336
                          ffi_cif *cif,
337
                          void (*fun)(ffi_cif*,void*,ffi_raw*,void*),
338
                          void *user_data,
339
                          void *codeloc);
340
 
341
ffi_status
342
ffi_prep_java_raw_closure (ffi_java_raw_closure*,
343
                           ffi_cif *cif,
344
                           void (*fun)(ffi_cif*,void*,ffi_java_raw*,void*),
345
                           void *user_data);
346
 
347
ffi_status
348
ffi_prep_java_raw_closure_loc (ffi_java_raw_closure*,
349
                               ffi_cif *cif,
350
                               void (*fun)(ffi_cif*,void*,ffi_java_raw*,void*),
351
                               void *user_data,
352
                               void *codeloc);
353
 
354
#endif /* FFI_CLOSURES */
355
 
356
/* ---- Public interface definition -------------------------------------- */
357
 
358
ffi_status ffi_prep_cif(ffi_cif *cif,
359
                        ffi_abi abi,
360
                        unsigned int nargs,
361
                        ffi_type *rtype,
362
                        ffi_type **atypes);
363
 
364
void ffi_call(ffi_cif *cif,
365
              void (*fn)(void),
366
              void *rvalue,
367
              void **avalue);
368
 
369
/* Useful for eliminating compiler warnings */
370
#define FFI_FN(f) ((void (*)(void))f)
371
 
372
/* ---- Definitions shared with assembly code ---------------------------- */
373
 
374
#endif
375
 
376
/* If these change, update src/mips/ffitarget.h. */
377
#define FFI_TYPE_VOID       0
378
#define FFI_TYPE_INT        1
379
#define FFI_TYPE_FLOAT      2
380
#define FFI_TYPE_DOUBLE     3
381
#if @HAVE_LONG_DOUBLE@
382
#define FFI_TYPE_LONGDOUBLE 4
383
#else
384
#define FFI_TYPE_LONGDOUBLE FFI_TYPE_DOUBLE
385
#endif
386
#define FFI_TYPE_UINT8      5
387
#define FFI_TYPE_SINT8      6
388
#define FFI_TYPE_UINT16     7
389
#define FFI_TYPE_SINT16     8
390
#define FFI_TYPE_UINT32     9
391
#define FFI_TYPE_SINT32     10
392
#define FFI_TYPE_UINT64     11
393
#define FFI_TYPE_SINT64     12
394
#define FFI_TYPE_STRUCT     13
395
#define FFI_TYPE_POINTER    14
396
 
397
/* This should always refer to the last type code (for sanity checks) */
398
#define FFI_TYPE_LAST       FFI_TYPE_POINTER
399
 
400
#ifdef __cplusplus
401
}
402
#endif
403
 
404
#endif

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.