Many new patches
[libffi.git] / .pc / more-openbsd-mips / src / mips / ffitarget.h
1 /* -----------------------------------------------------------------*-C-*-
2 ffitarget.h - Copyright (c) 1996-2003 Red Hat, Inc.
3 Target configuration macros for MIPS.
4
5 Permission is hereby granted, free of charge, to any person obtaining
6 a copy of this software and associated documentation files (the
7 ``Software''), to deal in the Software without restriction, including
8 without limitation the rights to use, copy, modify, merge, publish,
9 distribute, sublicense, and/or sell copies of the Software, and to
10 permit persons to whom the Software is furnished to do so, subject to
11 the following conditions:
12
13 The above copyright notice and this permission notice shall be included
14 in all copies or substantial portions of the Software.
15
16 THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND,
17 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
20 HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
21 WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
23 DEALINGS IN THE SOFTWARE.
24
25 ----------------------------------------------------------------------- */
26
27 #ifndef LIBFFI_TARGET_H
28 #define LIBFFI_TARGET_H
29
30 #ifdef linux
31 # include <asm/sgidefs.h>
32 #elif defined(__rtems__)
33 /*
34 * Subprogram calling convention - copied from sgidefs.h
35 */
36 #define _MIPS_SIM_ABI32 1
37 #define _MIPS_SIM_NABI32 2
38 #define _MIPS_SIM_ABI64 3
39 #else
40 # include <sgidefs.h>
41 #endif
42
43 # ifndef _ABIN32
44 # define _ABIN32 _MIPS_SIM_NABI32
45 # endif
46 # ifndef _ABI64
47 # define _ABI64 _MIPS_SIM_ABI64
48 # endif
49 # ifndef _ABIO32
50 # define _ABIO32 _MIPS_SIM_ABI32
51 # endif
52
53 #if !defined(_MIPS_SIM)
54 # error -- something is very wrong --
55 #else
56 # if (_MIPS_SIM==_ABIN32 && defined(_ABIN32)) || (_MIPS_SIM==_ABI64 && defined(_ABI64))
57 # define FFI_MIPS_N32
58 # else
59 # if (_MIPS_SIM==_ABIO32 && defined(_ABIO32))
60 # define FFI_MIPS_O32
61 # else
62 # error -- this is an unsupported platform --
63 # endif
64 # endif
65 #endif
66
67 #ifdef FFI_MIPS_O32
68 /* O32 stack frames have 32bit integer args */
69 # define FFI_SIZEOF_ARG 4
70 #else
71 /* N32 and N64 frames have 64bit integer args */
72 # define FFI_SIZEOF_ARG 8
73 # if _MIPS_SIM == _ABIN32
74 # define FFI_SIZEOF_JAVA_RAW 4
75 # endif
76 #endif
77
78 #define FFI_FLAG_BITS 2
79
80 /* SGI's strange assembler requires that we multiply by 4 rather
81 than shift left by FFI_FLAG_BITS */
82
83 #define FFI_ARGS_D FFI_TYPE_DOUBLE
84 #define FFI_ARGS_F FFI_TYPE_FLOAT
85 #define FFI_ARGS_DD FFI_TYPE_DOUBLE * 4 + FFI_TYPE_DOUBLE
86 #define FFI_ARGS_FF FFI_TYPE_FLOAT * 4 + FFI_TYPE_FLOAT
87 #define FFI_ARGS_FD FFI_TYPE_DOUBLE * 4 + FFI_TYPE_FLOAT
88 #define FFI_ARGS_DF FFI_TYPE_FLOAT * 4 + FFI_TYPE_DOUBLE
89
90 /* Needed for N32 structure returns */
91 #define FFI_TYPE_SMALLSTRUCT FFI_TYPE_UINT8
92 #define FFI_TYPE_SMALLSTRUCT2 FFI_TYPE_SINT8
93
94 #if 0
95 /* The SGI assembler can't handle this.. */
96 #define FFI_TYPE_STRUCT_DD (( FFI_ARGS_DD ) << 4) + FFI_TYPE_STRUCT
97 /* (and so on) */
98 #else
99 /* ...so we calculate these by hand! */
100 #define FFI_TYPE_STRUCT_D 61
101 #define FFI_TYPE_STRUCT_F 45
102 #define FFI_TYPE_STRUCT_DD 253
103 #define FFI_TYPE_STRUCT_FF 173
104 #define FFI_TYPE_STRUCT_FD 237
105 #define FFI_TYPE_STRUCT_DF 189
106 #define FFI_TYPE_STRUCT_SMALL 93
107 #define FFI_TYPE_STRUCT_SMALL2 109
108
109 /* and for n32 soft float, add 16 * 2^4 */
110 #define FFI_TYPE_STRUCT_D_SOFT 317
111 #define FFI_TYPE_STRUCT_F_SOFT 301
112 #define FFI_TYPE_STRUCT_DD_SOFT 509
113 #define FFI_TYPE_STRUCT_FF_SOFT 429
114 #define FFI_TYPE_STRUCT_FD_SOFT 493
115 #define FFI_TYPE_STRUCT_DF_SOFT 445
116 #define FFI_TYPE_STRUCT_SOFT 16
117 #endif
118
119 #ifdef LIBFFI_ASM
120 #define v0 $2
121 #define v1 $3
122 #define a0 $4
123 #define a1 $5
124 #define a2 $6
125 #define a3 $7
126 #define a4 $8
127 #define a5 $9
128 #define a6 $10
129 #define a7 $11
130 #define t0 $8
131 #define t1 $9
132 #define t2 $10
133 #define t3 $11
134 #define t4 $12
135 #define t5 $13
136 #define t6 $14
137 #define t7 $15
138 #define t8 $24
139 #define t9 $25
140 #define ra $31
141
142 #ifdef FFI_MIPS_O32
143 # define REG_L lw
144 # define REG_S sw
145 # define SUBU subu
146 # define ADDU addu
147 # define SRL srl
148 # define LI li
149 #else /* !FFI_MIPS_O32 */
150 # define REG_L ld
151 # define REG_S sd
152 # define SUBU dsubu
153 # define ADDU daddu
154 # define SRL dsrl
155 # define LI dli
156 # if (_MIPS_SIM==_ABI64)
157 # define LA dla
158 # define EH_FRAME_ALIGN 3
159 # define FDE_ADDR_BYTES .8byte
160 # else
161 # define LA la
162 # define EH_FRAME_ALIGN 2
163 # define FDE_ADDR_BYTES .4byte
164 # endif /* _MIPS_SIM==_ABI64 */
165 #endif /* !FFI_MIPS_O32 */
166 #else /* !LIBFFI_ASM */
167 # ifdef __GNUC__
168 # ifdef FFI_MIPS_O32
169 /* O32 stack frames have 32bit integer args */
170 typedef unsigned int ffi_arg __attribute__((__mode__(__SI__)));
171 typedef signed int ffi_sarg __attribute__((__mode__(__SI__)));
172 #else
173 /* N32 and N64 frames have 64bit integer args */
174 typedef unsigned int ffi_arg __attribute__((__mode__(__DI__)));
175 typedef signed int ffi_sarg __attribute__((__mode__(__DI__)));
176 # endif
177 # else
178 # ifdef FFI_MIPS_O32
179 /* O32 stack frames have 32bit integer args */
180 typedef __uint32_t ffi_arg;
181 typedef __int32_t ffi_sarg;
182 # else
183 /* N32 and N64 frames have 64bit integer args */
184 typedef __uint64_t ffi_arg;
185 typedef __int64_t ffi_sarg;
186 # endif
187 # endif /* __GNUC__ */
188
189 typedef enum ffi_abi {
190 FFI_FIRST_ABI = 0,
191 FFI_O32,
192 FFI_N32,
193 FFI_N64,
194 FFI_O32_SOFT_FLOAT,
195 FFI_N32_SOFT_FLOAT,
196 FFI_N64_SOFT_FLOAT,
197 FFI_LAST_ABI,
198
199 #ifdef FFI_MIPS_O32
200 #ifdef __mips_soft_float
201 FFI_DEFAULT_ABI = FFI_O32_SOFT_FLOAT
202 #else
203 FFI_DEFAULT_ABI = FFI_O32
204 #endif
205 #else
206 # if _MIPS_SIM==_ABI64
207 # ifdef __mips_soft_float
208 FFI_DEFAULT_ABI = FFI_N64_SOFT_FLOAT
209 # else
210 FFI_DEFAULT_ABI = FFI_N64
211 # endif
212 # else
213 # ifdef __mips_soft_float
214 FFI_DEFAULT_ABI = FFI_N32_SOFT_FLOAT
215 # else
216 FFI_DEFAULT_ABI = FFI_N32
217 # endif
218 # endif
219 #endif
220 } ffi_abi;
221
222 #define FFI_EXTRA_CIF_FIELDS unsigned rstruct_flag
223 #endif /* !LIBFFI_ASM */
224
225 /* ---- Definitions for closures ----------------------------------------- */
226
227 #if defined(FFI_MIPS_O32)
228 #define FFI_CLOSURES 1
229 #define FFI_TRAMPOLINE_SIZE 20
230 #else
231 /* N32/N64. */
232 # define FFI_CLOSURES 1
233 #if _MIPS_SIM==_ABI64
234 #define FFI_TRAMPOLINE_SIZE 52
235 #else
236 #define FFI_TRAMPOLINE_SIZE 20
237 #endif
238 #endif /* FFI_MIPS_O32 */
239 #define FFI_NATIVE_RAW_API 0
240
241 #endif
242