1 /* -----------------------------------------------------------------*-C-*-
2 ffitarget.h - Copyright (c) 1996-2003 Red Hat, Inc.
3 Target configuration macros for MIPS.
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:
13 The above copyright notice and this permission notice shall be included
14 in all copies or substantial portions of the Software.
16 THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS
17 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
19 IN NO EVENT SHALL CYGNUS SOLUTIONS BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 OTHER DEALINGS IN THE SOFTWARE.
24 ----------------------------------------------------------------------- */
26 #ifndef LIBFFI_TARGET_H
27 #define LIBFFI_TARGET_H
29 #if !defined(_MIPS_SIM)
30 -- something is very wrong
--
32 # if (_MIPS_SIM==_ABIN32 && defined(_ABIN32)) || (_MIPS_SIM==_ABI64 && defined(_ABI64))
35 # if (_MIPS_SIM==_ABIO32 && defined(_ABIO32))
38 -- this is an unsupported platform
--
44 /* O32 stack frames have 32bit integer args */
45 #define FFI_SIZEOF_ARG 4
47 /* N32 and N64 frames have 64bit integer args */
48 #define FFI_SIZEOF_ARG 8
51 #define FFI_FLAG_BITS 2
53 /* SGI's strange assembler requires that we multiply by 4 rather
54 than shift left by FFI_FLAG_BITS */
56 #define FFI_ARGS_D FFI_TYPE_DOUBLE
57 #define FFI_ARGS_F FFI_TYPE_FLOAT
58 #define FFI_ARGS_DD FFI_TYPE_DOUBLE * 4 + FFI_TYPE_DOUBLE
59 #define FFI_ARGS_FF FFI_TYPE_FLOAT * 4 + FFI_TYPE_FLOAT
60 #define FFI_ARGS_FD FFI_TYPE_DOUBLE * 4 + FFI_TYPE_FLOAT
61 #define FFI_ARGS_DF FFI_TYPE_FLOAT * 4 + FFI_TYPE_DOUBLE
63 /* Needed for N32 structure returns */
64 #define FFI_TYPE_SMALLSTRUCT FFI_TYPE_UINT8
65 #define FFI_TYPE_SMALLSTRUCT2 FFI_TYPE_SINT8
68 /* The SGI assembler can't handle this.. */
69 #define FFI_TYPE_STRUCT_DD (( FFI_ARGS_DD ) << 4) + FFI_TYPE_STRUCT
72 /* ...so we calculate these by hand! */
73 #define FFI_TYPE_STRUCT_D 61
74 #define FFI_TYPE_STRUCT_F 45
75 #define FFI_TYPE_STRUCT_DD 253
76 #define FFI_TYPE_STRUCT_FF 173
77 #define FFI_TYPE_STRUCT_FD 237
78 #define FFI_TYPE_STRUCT_DF 189
79 #define FFI_TYPE_STRUCT_SMALL 93
80 #define FFI_TYPE_STRUCT_SMALL2 109
113 #else /* !FFI_MIPS_O32 */
120 #endif /* !FFI_MIPS_O32 */
121 #else /* !LIBFFI_ASM */
123 /* O32 stack frames have 32bit integer args */
124 typedef unsigned int ffi_arg
__attribute__((__mode__(__SI__
)));
125 typedef signed int ffi_sarg
__attribute__((__mode__(__SI__
)));
127 /* N32 and N64 frames have 64bit integer args */
128 typedef unsigned int ffi_arg
__attribute__((__mode__(__DI__
)));
129 typedef signed int ffi_sarg
__attribute__((__mode__(__DI__
)));
132 typedef enum ffi_abi
{
140 #ifdef __mips_soft_float
141 FFI_DEFAULT_ABI
= FFI_O32_SOFT_FLOAT
,
143 FFI_DEFAULT_ABI
= FFI_O32
,
146 FFI_DEFAULT_ABI
= FFI_N32
,
149 FFI_LAST_ABI
= FFI_DEFAULT_ABI
+ 1
152 #define FFI_EXTRA_CIF_FIELDS unsigned rstruct_flag
153 #endif /* !LIBFFI_ASM */
155 /* ---- Definitions for closures ----------------------------------------- */
157 #if defined(FFI_MIPS_O32)
158 #define FFI_CLOSURES 1
159 #define FFI_TRAMPOLINE_SIZE 20
161 /* N32/N64 not implemented yet. */
162 #define FFI_CLOSURES 0
163 #endif /* FFI_MIPS_O32 */
164 #define FFI_NATIVE_RAW_API 0