github.com/prattmic/llgo-embedded@v0.0.0-20150820070356-41cfecea0e1e/third_party/gofrontend/libffi/src/mips/ffitarget.h (about) 1 /* -----------------------------------------------------------------*-C-*- 2 ffitarget.h - Copyright (c) 2012 Anthony Green 3 Copyright (c) 1996-2003 Red Hat, Inc. 4 Target configuration macros for MIPS. 5 6 Permission is hereby granted, free of charge, to any person obtaining 7 a copy of this software and associated documentation files (the 8 ``Software''), to deal in the Software without restriction, including 9 without limitation the rights to use, copy, modify, merge, publish, 10 distribute, sublicense, and/or sell copies of the Software, and to 11 permit persons to whom the Software is furnished to do so, subject to 12 the following conditions: 13 14 The above copyright notice and this permission notice shall be included 15 in all copies or substantial portions of the Software. 16 17 THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, 18 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 19 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 20 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 21 HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 22 WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 23 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 24 DEALINGS IN THE SOFTWARE. 25 26 ----------------------------------------------------------------------- */ 27 28 #ifndef LIBFFI_TARGET_H 29 #define LIBFFI_TARGET_H 30 31 #ifndef LIBFFI_H 32 #error "Please do not include ffitarget.h directly into your source. Use ffi.h instead." 33 #endif 34 35 #ifdef linux 36 # include <asm/sgidefs.h> 37 #elif defined(__rtems__) 38 /* 39 * Subprogram calling convention - copied from sgidefs.h 40 */ 41 #define _MIPS_SIM_ABI32 1 42 #define _MIPS_SIM_NABI32 2 43 #define _MIPS_SIM_ABI64 3 44 #elif !defined(__OpenBSD__) 45 # include <sgidefs.h> 46 #endif 47 48 # ifndef _ABIN32 49 # define _ABIN32 _MIPS_SIM_NABI32 50 # endif 51 # ifndef _ABI64 52 # define _ABI64 _MIPS_SIM_ABI64 53 # endif 54 # ifndef _ABIO32 55 # define _ABIO32 _MIPS_SIM_ABI32 56 # endif 57 58 #if !defined(_MIPS_SIM) 59 # error -- something is very wrong -- 60 #else 61 # if (_MIPS_SIM==_ABIN32 && defined(_ABIN32)) || (_MIPS_SIM==_ABI64 && defined(_ABI64)) 62 # define FFI_MIPS_N32 63 # else 64 # if (_MIPS_SIM==_ABIO32 && defined(_ABIO32)) 65 # define FFI_MIPS_O32 66 # else 67 # error -- this is an unsupported platform -- 68 # endif 69 # endif 70 #endif 71 72 #ifdef FFI_MIPS_O32 73 /* O32 stack frames have 32bit integer args */ 74 # define FFI_SIZEOF_ARG 4 75 #else 76 /* N32 and N64 frames have 64bit integer args */ 77 # define FFI_SIZEOF_ARG 8 78 # if _MIPS_SIM == _ABIN32 79 # define FFI_SIZEOF_JAVA_RAW 4 80 # endif 81 #endif 82 83 #define FFI_FLAG_BITS 2 84 85 /* SGI's strange assembler requires that we multiply by 4 rather 86 than shift left by FFI_FLAG_BITS */ 87 88 #define FFI_ARGS_D FFI_TYPE_DOUBLE 89 #define FFI_ARGS_F FFI_TYPE_FLOAT 90 #define FFI_ARGS_DD FFI_TYPE_DOUBLE * 4 + FFI_TYPE_DOUBLE 91 #define FFI_ARGS_FF FFI_TYPE_FLOAT * 4 + FFI_TYPE_FLOAT 92 #define FFI_ARGS_FD FFI_TYPE_DOUBLE * 4 + FFI_TYPE_FLOAT 93 #define FFI_ARGS_DF FFI_TYPE_FLOAT * 4 + FFI_TYPE_DOUBLE 94 95 /* Needed for N32 structure returns */ 96 #define FFI_TYPE_SMALLSTRUCT FFI_TYPE_UINT8 97 #define FFI_TYPE_SMALLSTRUCT2 FFI_TYPE_SINT8 98 99 #if 0 100 /* The SGI assembler can't handle this.. */ 101 #define FFI_TYPE_STRUCT_DD (( FFI_ARGS_DD ) << 4) + FFI_TYPE_STRUCT 102 /* (and so on) */ 103 #else 104 /* ...so we calculate these by hand! */ 105 #define FFI_TYPE_STRUCT_D 61 106 #define FFI_TYPE_STRUCT_F 45 107 #define FFI_TYPE_STRUCT_DD 253 108 #define FFI_TYPE_STRUCT_FF 173 109 #define FFI_TYPE_STRUCT_FD 237 110 #define FFI_TYPE_STRUCT_DF 189 111 #define FFI_TYPE_STRUCT_SMALL 93 112 #define FFI_TYPE_STRUCT_SMALL2 109 113 114 /* and for n32 soft float, add 16 * 2^4 */ 115 #define FFI_TYPE_STRUCT_D_SOFT 317 116 #define FFI_TYPE_STRUCT_F_SOFT 301 117 #define FFI_TYPE_STRUCT_DD_SOFT 509 118 #define FFI_TYPE_STRUCT_FF_SOFT 429 119 #define FFI_TYPE_STRUCT_FD_SOFT 493 120 #define FFI_TYPE_STRUCT_DF_SOFT 445 121 #define FFI_TYPE_STRUCT_SOFT 16 122 #endif 123 124 #ifdef LIBFFI_ASM 125 #define v0 $2 126 #define v1 $3 127 #define a0 $4 128 #define a1 $5 129 #define a2 $6 130 #define a3 $7 131 #define a4 $8 132 #define a5 $9 133 #define a6 $10 134 #define a7 $11 135 #define t0 $8 136 #define t1 $9 137 #define t2 $10 138 #define t3 $11 139 #define t4 $12 140 #define t5 $13 141 #define t6 $14 142 #define t7 $15 143 #define t8 $24 144 #define t9 $25 145 #define ra $31 146 147 #ifdef FFI_MIPS_O32 148 # define REG_L lw 149 # define REG_S sw 150 # define SUBU subu 151 # define ADDU addu 152 # define SRL srl 153 # define LI li 154 #else /* !FFI_MIPS_O32 */ 155 # define REG_L ld 156 # define REG_S sd 157 # define SUBU dsubu 158 # define ADDU daddu 159 # define SRL dsrl 160 # define LI dli 161 # if (_MIPS_SIM==_ABI64) 162 # define LA dla 163 # define EH_FRAME_ALIGN 3 164 # define FDE_ADDR_BYTES .8byte 165 # else 166 # define LA la 167 # define EH_FRAME_ALIGN 2 168 # define FDE_ADDR_BYTES .4byte 169 # endif /* _MIPS_SIM==_ABI64 */ 170 #endif /* !FFI_MIPS_O32 */ 171 #else /* !LIBFFI_ASM */ 172 # ifdef __GNUC__ 173 # ifdef FFI_MIPS_O32 174 /* O32 stack frames have 32bit integer args */ 175 typedef unsigned int ffi_arg __attribute__((__mode__(__SI__))); 176 typedef signed int ffi_sarg __attribute__((__mode__(__SI__))); 177 #else 178 /* N32 and N64 frames have 64bit integer args */ 179 typedef unsigned int ffi_arg __attribute__((__mode__(__DI__))); 180 typedef signed int ffi_sarg __attribute__((__mode__(__DI__))); 181 # endif 182 # else 183 # ifdef FFI_MIPS_O32 184 /* O32 stack frames have 32bit integer args */ 185 typedef __uint32_t ffi_arg; 186 typedef __int32_t ffi_sarg; 187 # else 188 /* N32 and N64 frames have 64bit integer args */ 189 typedef __uint64_t ffi_arg; 190 typedef __int64_t ffi_sarg; 191 # endif 192 # endif /* __GNUC__ */ 193 194 typedef enum ffi_abi { 195 FFI_FIRST_ABI = 0, 196 FFI_O32, 197 FFI_N32, 198 FFI_N64, 199 FFI_O32_SOFT_FLOAT, 200 FFI_N32_SOFT_FLOAT, 201 FFI_N64_SOFT_FLOAT, 202 FFI_LAST_ABI, 203 204 #ifdef FFI_MIPS_O32 205 #ifdef __mips_soft_float 206 FFI_DEFAULT_ABI = FFI_O32_SOFT_FLOAT 207 #else 208 FFI_DEFAULT_ABI = FFI_O32 209 #endif 210 #else 211 # if _MIPS_SIM==_ABI64 212 # ifdef __mips_soft_float 213 FFI_DEFAULT_ABI = FFI_N64_SOFT_FLOAT 214 # else 215 FFI_DEFAULT_ABI = FFI_N64 216 # endif 217 # else 218 # ifdef __mips_soft_float 219 FFI_DEFAULT_ABI = FFI_N32_SOFT_FLOAT 220 # else 221 FFI_DEFAULT_ABI = FFI_N32 222 # endif 223 # endif 224 #endif 225 } ffi_abi; 226 227 #define FFI_EXTRA_CIF_FIELDS unsigned rstruct_flag 228 #endif /* !LIBFFI_ASM */ 229 230 /* ---- Definitions for closures ----------------------------------------- */ 231 232 #if defined(FFI_MIPS_O32) 233 #define FFI_CLOSURES 1 234 #define FFI_TRAMPOLINE_SIZE 20 235 #else 236 /* N32/N64. */ 237 # define FFI_CLOSURES 1 238 #if _MIPS_SIM==_ABI64 239 #define FFI_TRAMPOLINE_SIZE 52 240 #else 241 #define FFI_TRAMPOLINE_SIZE 20 242 #endif 243 #endif /* FFI_MIPS_O32 */ 244 #define FFI_NATIVE_RAW_API 0 245 246 #endif 247