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 # ifndef _ABIN32 33 # define _ABIN32 _MIPS_SIM_NABI32 34 # endif 35 # ifndef _ABI64 36 # define _ABI64 _MIPS_SIM_ABI64 37 # endif 38 # ifndef _ABIO32 39 # define _ABIO32 _MIPS_SIM_ABI32 40 # endif 41 #endif 42 43 #if !defined(_MIPS_SIM) 44 -- something is very wrong -- 45 #else 46 # if (_MIPS_SIM==_ABIN32 && defined(_ABIN32)) || (_MIPS_SIM==_ABI64 && defined(_ABI64)) 47 # define FFI_MIPS_N32 48 # else 49 # if (_MIPS_SIM==_ABIO32 && defined(_ABIO32)) 50 # define FFI_MIPS_O32 51 # else 52 -- this is an unsupported platform -- 53 # endif 54 # endif 55 #endif 56 57 #ifdef FFI_MIPS_O32 58 /* O32 stack frames have 32bit integer args */ 59 # define FFI_SIZEOF_ARG 4 60 #else 61 /* N32 and N64 frames have 64bit integer args */ 62 # define FFI_SIZEOF_ARG 8 63 # if _MIPS_SIM == _ABIN32 64 # define FFI_SIZEOF_JAVA_RAW 4 65 # endif 66 #endif 67 68 #define FFI_FLAG_BITS 2 69 70 /* SGI's strange assembler requires that we multiply by 4 rather 71 than shift left by FFI_FLAG_BITS */ 72 73 #define FFI_ARGS_D FFI_TYPE_DOUBLE 74 #define FFI_ARGS_F FFI_TYPE_FLOAT 75 #define FFI_ARGS_DD FFI_TYPE_DOUBLE * 4 + FFI_TYPE_DOUBLE 76 #define FFI_ARGS_FF FFI_TYPE_FLOAT * 4 + FFI_TYPE_FLOAT 77 #define FFI_ARGS_FD FFI_TYPE_DOUBLE * 4 + FFI_TYPE_FLOAT 78 #define FFI_ARGS_DF FFI_TYPE_FLOAT * 4 + FFI_TYPE_DOUBLE 79 80 /* Needed for N32 structure returns */ 81 #define FFI_TYPE_SMALLSTRUCT FFI_TYPE_UINT8 82 #define FFI_TYPE_SMALLSTRUCT2 FFI_TYPE_SINT8 83 84 #if 0 85 /* The SGI assembler can't handle this.. */ 86 #define FFI_TYPE_STRUCT_DD (( FFI_ARGS_DD ) << 4) + FFI_TYPE_STRUCT 87 /* (and so on) */ 88 #else 89 /* ...so we calculate these by hand! */ 90 #define FFI_TYPE_STRUCT_D 61 91 #define FFI_TYPE_STRUCT_F 45 92 #define FFI_TYPE_STRUCT_DD 253 93 #define FFI_TYPE_STRUCT_FF 173 94 #define FFI_TYPE_STRUCT_FD 237 95 #define FFI_TYPE_STRUCT_DF 189 96 #define FFI_TYPE_STRUCT_SMALL 93 97 #define FFI_TYPE_STRUCT_SMALL2 109 98 #endif 99 100 #ifdef LIBFFI_ASM 101 #define v0 $2 102 #define v1 $3 103 #define a0 $4 104 #define a1 $5 105 #define a2 $6 106 #define a3 $7 107 #define a4 $8 108 #define a5 $9 109 #define a6 $10 110 #define a7 $11 111 #define t0 $8 112 #define t1 $9 113 #define t2 $10 114 #define t3 $11 115 #define t4 $12 116 #define t5 $13 117 #define t6 $14 118 #define t7 $15 119 #define t8 $24 120 #define t9 $25 121 #define ra $31 122 123 #ifdef FFI_MIPS_O32 124 # define REG_L lw 125 # define REG_S sw 126 # define SUBU subu 127 # define ADDU addu 128 # define SRL srl 129 # define LI li 130 #else /* !FFI_MIPS_O32 */ 131 # define REG_L ld 132 # define REG_S sd 133 # define SUBU dsubu 134 # define ADDU daddu 135 # define SRL dsrl 136 # define LI dli 137 # if (_MIPS_SIM==_ABI64) 138 # define LA dla 139 # define EH_FRAME_ALIGN 3 140 # define FDE_ADDR_BYTES .8byte 141 # else 142 # define LA la 143 # define EH_FRAME_ALIGN 2 144 # define FDE_ADDR_BYTES .4byte 145 # endif /* _MIPS_SIM==_ABI64 */ 146 #endif /* !FFI_MIPS_O32 */ 147 #else /* !LIBFFI_ASM */ 148 #ifdef FFI_MIPS_O32 149 /* O32 stack frames have 32bit integer args */ 150 typedef unsigned int ffi_arg __attribute__((__mode__(__SI__))); 151 typedef signed int ffi_sarg __attribute__((__mode__(__SI__))); 152 #else 153 /* N32 and N64 frames have 64bit integer args */ 154 typedef unsigned int ffi_arg __attribute__((__mode__(__DI__))); 155 typedef signed int ffi_sarg __attribute__((__mode__(__DI__))); 156 #endif 157 158 typedef enum ffi_abi { 159 FFI_FIRST_ABI = 0, 160 FFI_O32, 161 FFI_N32, 162 FFI_N64, 163 FFI_O32_SOFT_FLOAT, 164 165 #ifdef FFI_MIPS_O32 166 #ifdef __mips_soft_float 167 FFI_DEFAULT_ABI = FFI_O32_SOFT_FLOAT, 168 #else 169 FFI_DEFAULT_ABI = FFI_O32, 170 #endif 171 #else 172 # if _MIPS_SIM==_ABI64 173 FFI_DEFAULT_ABI = FFI_N64, 174 # else 175 FFI_DEFAULT_ABI = FFI_N32, 176 # endif 177 #endif 178 179 FFI_LAST_ABI = FFI_DEFAULT_ABI + 1 180 } ffi_abi; 181 182 #define FFI_EXTRA_CIF_FIELDS unsigned rstruct_flag 183 #endif /* !LIBFFI_ASM */ 184 185 /* ---- Definitions for closures ----------------------------------------- */ 186 187 #if defined(FFI_MIPS_O32) 188 #define FFI_CLOSURES 1 189 #define FFI_TRAMPOLINE_SIZE 20 190 #else 191 /* N32/N64. */ 192 # define FFI_CLOSURES 1 193 #if _MIPS_SIM==_ABI64 194 #define FFI_TRAMPOLINE_SIZE 52 195 #else 196 #define FFI_TRAMPOLINE_SIZE 20 197 #endif 198 #endif /* FFI_MIPS_O32 */ 199 #define FFI_NATIVE_RAW_API 0 200 201 #endif 202 203