Mercurial > pub > dyncall > dyncall
annotate dyncall/dyncall_callvm_ppc64.c @ 84:67961454902b
- bigger cleanup in callvm code
* changed init of most callvms to reuse code and for consistency
* removed unused functions
* general changes for consistency
* added some missing cconv defines do mode calls
- fixed potential buffer overrun on arm64
- fixed sparc and x64 mode setting (only one mode, but wasn't (pointlessly) resettable)
- error code handling (dcGetError) changes, flag is now cleared (work still underway)
- Changelog update
| author | cslag |
|---|---|
| date | Wed, 06 Apr 2016 00:21:51 +0200 |
| parents | 54930a037e8a |
| children | ad5f9803f52f |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 | |
| 3 Package: dyncall | |
| 4 Library: dyncall | |
| 5 File: dyncall/dyncall_callvm_ppc64.c | |
| 6 Description: | |
| 7 License: | |
| 8 | |
| 9 Copyright (c) 2014-2015 Masanori Mitsugi <mitsugi@linux.vnet.ibm.com> | |
| 10 | |
| 11 Permission to use, copy, modify, and distribute this software for any | |
| 12 purpose with or without fee is hereby granted, provided that the above | |
| 13 copyright notice and this permission notice appear in all copies. | |
| 14 | |
| 15 THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
| 16 WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
| 17 MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |
| 18 ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
| 19 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
| 20 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
| 21 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
| 22 | |
| 23 */ | |
| 24 | |
| 25 | |
| 26 /* | |
| 27 | |
| 28 dyncall callvm for ppc64 architectures | |
| 29 | |
| 30 SUPPORTED CALLING CONVENTIONS | |
| 31 ppc64/linux | |
| 7 | 32 ppc64/syscall |
| 0 | 33 |
| 34 REVISION | |
| 7 | 35 2015/07/08 added syscall |
| 0 | 36 2014/08/07 initial support |
| 37 | |
| 38 */ | |
| 39 | |
| 40 #include "dyncall_callvm_ppc64.h" | |
| 41 #include "dyncall_call_ppc64.h" | |
| 42 #include "dyncall_alloc.h" | |
| 43 #include "dyncall_macros.h" | |
| 44 #include "dyncall_types.h" | |
| 45 | |
| 46 /* Support for Power PC 64-bit */ | |
| 47 | |
| 48 static void dc_callvm_free_ppc64(DCCallVM* in_self) | |
| 49 { | |
| 50 dcFreeMem(in_self); | |
| 51 } | |
| 52 | |
| 53 static void dc_callvm_reset_ppc64(DCCallVM* in_self) | |
| 54 { | |
| 55 DCCallVM_ppc64* self = (DCCallVM_ppc64*)in_self; | |
| 56 dcVecReset(&self->mVecHead); | |
| 57 self->mIntRegs = 0; | |
| 58 self->mFloatRegs = 0; | |
| 59 } | |
| 60 | |
| 61 /* fillup integer register file AND push on stack (for ellipsis) */ | |
| 62 | |
| 63 static void dc_callvm_argInt_ppc64(DCCallVM* in_self, DCint i) | |
| 64 { | |
| 65 /* promote to longlong */ | |
| 66 dcArgLongLong(in_self, (DClonglong)i); | |
| 67 } | |
| 68 | |
| 69 /** floating-point **/ | |
| 70 | |
| 71 /* double*/ | |
| 72 | |
| 73 static void dc_callvm_argDouble_ppc64(DCCallVM* in_self, DCdouble d) | |
| 74 { | |
| 75 DCCallVM_ppc64* self = (DCCallVM_ppc64*)in_self; | |
| 76 | |
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77 if (self->mFloatRegs < 13) { |
| 0 | 78 self->mRegData.mFloatData[self->mFloatRegs++] = d; |
| 79 if (self->mIntRegs < 8) { | |
| 80 self->mRegData.mIntData[self->mIntRegs++] = *( (DClonglong*) &d ); | |
| 81 #if DC__ABI_PPC64_ELF_V == 2 | |
| 82 return; | |
| 83 #endif | |
| 84 } | |
|
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85 } |
| 0 | 86 |
| 87 #if DC__ABI_PPC64_ELF_V == 2 | |
| 88 if (dcVecSize(&self->mVecHead) == 0) { | |
| 89 dcVecSkip(&self->mVecHead,sizeof(DClonglong)*8); | |
| 90 } | |
| 91 #endif | |
| 92 | |
| 93 /* push on stack */ | |
| 94 dcVecAppend(&self->mVecHead,(DCpointer) &d,sizeof(DCdouble)); | |
| 95 } | |
| 96 | |
| 97 #if DC__ABI_PPC64_ELF_V == 2 | |
| 98 static void dc_callvm_argDouble_ppc64_ellipsis(DCCallVM* in_self, DCdouble d) | |
| 99 { | |
| 100 DCCallVM_ppc64* self = (DCCallVM_ppc64*)in_self; | |
| 101 | |
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102 if (dcVecSize(&self->mVecHead) == 0) |
| 0 | 103 dcVecSkip(&self->mVecHead,(sizeof(DClonglong))*(self->mIntRegs)); |
| 104 | |
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105 if (self->mFloatRegs < 13) { |
| 0 | 106 self->mRegData.mFloatData[self->mFloatRegs++] = d; |
| 107 if (self->mIntRegs < 8) { | |
| 108 self->mRegData.mIntData[self->mIntRegs++] = *( (DClonglong*) &d ); | |
| 109 } | |
| 110 } | |
| 111 | |
| 112 /* push on stack */ | |
| 113 dcVecAppend(&self->mVecHead,(DCpointer) &d,sizeof(DCdouble)); | |
| 114 } | |
| 115 #endif | |
| 116 | |
| 117 | |
| 118 /* Floating-point */ | |
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119 |
| 0 | 120 static void dc_callvm_argFloat_ppc64(DCCallVM* in_self, DCfloat f) |
| 121 { | |
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122 DCCallVM_ppc64* self = (DCCallVM_ppc64*)in_self; |
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123 |
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124 DCdouble d; |
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125 #if defined(DC__Endian_BIG) |
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126 struct { DCfloat f_pad; DCfloat f; } sf; |
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127 #else /* Endian_LITTLE */ |
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128 struct { DCfloat f; DCfloat f_pad; } sf; |
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129 #endif |
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130 |
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131 if (self->mFloatRegs < 13) { |
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132 d = (DCdouble)f; |
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133 self->mRegData.mFloatData[self->mFloatRegs++] = d; |
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134 if (self->mIntRegs < 8) { |
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135 self->mRegData.mIntData[self->mIntRegs++] = *( (DClonglong*) &d ); |
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136 #if DC__ABI_PPC64_ELF_V == 2 |
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137 return; |
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138 #endif |
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139 } |
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140 } |
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141 |
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142 #if DC__ABI_PPC64_ELF_V == 2 |
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143 if (dcVecSize(&self->mVecHead) == 0) { |
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144 dcVecSkip(&self->mVecHead,sizeof(DClonglong)*8); |
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145 } |
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146 #endif |
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147 |
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148 /* push on stack */ |
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149 sf.f = f; |
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150 dcVecAppend(&self->mVecHead,(DCpointer) &sf,sizeof(DCdouble)); |
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151 } |
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152 |
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153 #if DC__ABI_PPC64_ELF_V == 2 |
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154 static void dc_callvm_argFloat_ppc64_ellipsis(DCCallVM* in_self, DCfloat f) |
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155 { |
| 0 | 156 /* promote to double */ |
| 157 dcArgDouble(in_self, (DCdouble) f ); | |
| 158 } | |
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159 #endif |
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160 |
| 0 | 161 |
| 162 /* long long integer */ | |
| 163 | |
| 164 static void dc_callvm_argLongLong_ppc64(DCCallVM* in_self, DClonglong L) | |
| 165 { | |
| 166 DCCallVM_ppc64* self = (DCCallVM_ppc64*)in_self; | |
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167 |
| 0 | 168 /* fillup integer register file */ |
| 169 if (self->mIntRegs < 8) { | |
| 170 self->mRegData.mIntData[self->mIntRegs++] = L; | |
| 171 #if DC__ABI_PPC64_ELF_V == 2 | |
| 172 return; | |
| 173 #endif | |
| 174 } | |
| 175 | |
| 176 #if DC__ABI_PPC64_ELF_V == 2 | |
| 177 if (dcVecSize(&self->mVecHead) == 0) { | |
| 178 dcVecSkip(&self->mVecHead,sizeof(DClonglong)*8); | |
| 179 } | |
| 180 #endif | |
| 181 | |
| 182 /* push on stack */ | |
| 183 dcVecAppend(&self->mVecHead,&L,sizeof(DClonglong)); | |
| 184 } | |
| 185 | |
| 186 #if DC__ABI_PPC64_ELF_V == 2 | |
| 187 static void dc_callvm_argLongLong_ppc64_ellipsis(DCCallVM* in_self, DClonglong L) | |
| 188 { | |
| 189 DCCallVM_ppc64* self = (DCCallVM_ppc64*)in_self; | |
| 190 | |
| 191 if (dcVecSize(&self->mVecHead) == 0) | |
| 192 dcVecSkip(&self->mVecHead,(sizeof(DClonglong))*(self->mIntRegs)); | |
| 193 | |
| 194 if (self->mIntRegs < 8) | |
| 195 self->mRegData.mIntData[self->mIntRegs++] = L; | |
| 196 | |
| 197 /* push on stack */ | |
| 198 dcVecAppend(&self->mVecHead,&L,sizeof(DClonglong)); | |
| 199 } | |
| 200 #endif | |
| 201 | |
| 202 | |
| 203 static void dc_callvm_argBool_ppc64(DCCallVM* in_self, DCbool x) | |
| 204 { | |
| 205 /* promote to longlong */ | |
| 206 dcArgLongLong(in_self, (DClonglong) x ); | |
| 207 } | |
| 208 | |
| 209 | |
| 210 static void dc_callvm_argChar_ppc64(DCCallVM* in_self, DCchar ch) | |
| 211 { | |
| 212 /* promote to longlong */ | |
| 213 dcArgLongLong(in_self, (DClonglong) ch ); | |
| 214 } | |
| 215 | |
| 216 | |
| 217 static void dc_callvm_argShort_ppc64(DCCallVM* in_self, DCshort s) | |
| 218 { | |
| 219 /* promote to longlong */ | |
| 220 dcArgLongLong(in_self, (DClonglong) s ); | |
| 221 } | |
| 222 | |
| 223 | |
| 224 static void dc_callvm_argLong_ppc64(DCCallVM* in_self, DClong l) | |
| 225 { | |
| 226 /* promote to longlong */ | |
| 227 dcArgLongLong(in_self, (DClonglong) l ); | |
| 228 } | |
| 229 | |
| 230 | |
| 231 static void dc_callvm_argPointer_ppc64(DCCallVM* in_self, DCpointer p) | |
| 232 { | |
| 233 /* promote to longlong */ | |
| 234 dcArgLongLong(in_self, *(DClonglong *) &p ); | |
| 235 } | |
| 236 | |
| 237 | |
| 238 void dc_callvm_call_ppc64(DCCallVM* in_self, DCpointer target) | |
| 239 { | |
| 240 DCCallVM_ppc64* self = (DCCallVM_ppc64*) in_self; | |
| 241 int size = dcVecSize(&self->mVecHead); | |
| 242 | |
| 243 if (size < 64) { | |
| 244 dcVecSkip(&self->mVecHead, 64-size); | |
| 245 } | |
| 246 | |
| 247 dcCall_ppc64( target, &self->mRegData, dcVecSize(&self->mVecHead) , dcVecData(&self->mVecHead)); | |
| 248 } | |
| 249 | |
| 7 | 250 void dc_callvm_call_ppc64_syscall(DCCallVM* in_self, DCpointer target) |
| 251 { | |
| 252 DCCallVM_ppc64* self = (DCCallVM_ppc64*) in_self; | |
| 253 dcCall_ppc64_syscall( target, &self->mRegData, dcVecSize(&self->mVecHead) , dcVecData(&self->mVecHead)); | |
| 254 } | |
| 255 | |
| 0 | 256 void dc_callvm_mode_ppc64(DCCallVM* in_self, DCint mode); |
| 257 | |
| 258 DCCallVM_vt gVT_ppc64 = | |
| 259 { | |
| 260 &dc_callvm_free_ppc64 | |
| 261 , &dc_callvm_reset_ppc64 | |
| 262 , &dc_callvm_mode_ppc64 | |
| 263 , &dc_callvm_argBool_ppc64 | |
| 264 , &dc_callvm_argChar_ppc64 | |
| 265 , &dc_callvm_argShort_ppc64 | |
| 266 , &dc_callvm_argInt_ppc64 | |
| 267 , &dc_callvm_argLong_ppc64 | |
| 268 , &dc_callvm_argLongLong_ppc64 | |
| 269 , &dc_callvm_argFloat_ppc64 | |
| 270 , &dc_callvm_argDouble_ppc64 | |
| 271 , &dc_callvm_argPointer_ppc64 | |
| 272 , NULL /* argStruct */ | |
| 273 , (DCvoidvmfunc*) &dc_callvm_call_ppc64 | |
| 274 , (DCboolvmfunc*) &dc_callvm_call_ppc64 | |
| 275 , (DCcharvmfunc*) &dc_callvm_call_ppc64 | |
| 276 , (DCshortvmfunc*) &dc_callvm_call_ppc64 | |
| 277 , (DCintvmfunc*) &dc_callvm_call_ppc64 | |
| 278 , (DClongvmfunc*) &dc_callvm_call_ppc64 | |
| 279 , (DClonglongvmfunc*) &dc_callvm_call_ppc64 | |
| 280 , (DCfloatvmfunc*) &dc_callvm_call_ppc64 | |
| 281 , (DCdoublevmfunc*) &dc_callvm_call_ppc64 | |
| 282 , (DCpointervmfunc*) &dc_callvm_call_ppc64 | |
| 283 , NULL /* callStruct */ | |
| 284 }; | |
| 285 | |
| 286 #if DC__ABI_PPC64_ELF_V == 2 | |
| 287 DCCallVM_vt gVT_ppc64_ellipsis = | |
| 288 { | |
| 289 &dc_callvm_free_ppc64 | |
| 290 , &dc_callvm_reset_ppc64 | |
| 291 , &dc_callvm_mode_ppc64 | |
| 292 , &dc_callvm_argBool_ppc64 | |
| 293 , &dc_callvm_argChar_ppc64 | |
| 294 , &dc_callvm_argShort_ppc64 | |
| 295 , &dc_callvm_argInt_ppc64 | |
| 296 , &dc_callvm_argLong_ppc64 | |
| 297 , &dc_callvm_argLongLong_ppc64_ellipsis | |
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298 , &dc_callvm_argFloat_ppc64_ellipsis |
| 0 | 299 , &dc_callvm_argDouble_ppc64_ellipsis |
| 300 , &dc_callvm_argPointer_ppc64 | |
| 301 , NULL /* argStruct */ | |
| 302 , (DCvoidvmfunc*) &dc_callvm_call_ppc64 | |
| 303 , (DCboolvmfunc*) &dc_callvm_call_ppc64 | |
| 304 , (DCcharvmfunc*) &dc_callvm_call_ppc64 | |
| 305 , (DCshortvmfunc*) &dc_callvm_call_ppc64 | |
| 306 , (DCintvmfunc*) &dc_callvm_call_ppc64 | |
| 307 , (DClongvmfunc*) &dc_callvm_call_ppc64 | |
| 308 , (DClonglongvmfunc*) &dc_callvm_call_ppc64 | |
| 309 , (DCfloatvmfunc*) &dc_callvm_call_ppc64 | |
| 310 , (DCdoublevmfunc*) &dc_callvm_call_ppc64 | |
| 311 , (DCpointervmfunc*) &dc_callvm_call_ppc64 | |
| 312 , NULL /* callStruct */ | |
| 313 }; | |
| 314 #endif | |
| 315 | |
| 7 | 316 DCCallVM_vt gVT_ppc64_syscall = |
| 317 { | |
| 318 &dc_callvm_free_ppc64 | |
| 319 , &dc_callvm_reset_ppc64 | |
| 320 , &dc_callvm_mode_ppc64 | |
| 321 , &dc_callvm_argBool_ppc64 | |
| 322 , &dc_callvm_argChar_ppc64 | |
| 323 , &dc_callvm_argShort_ppc64 | |
| 324 , &dc_callvm_argInt_ppc64 | |
| 325 , &dc_callvm_argLong_ppc64 | |
| 326 , &dc_callvm_argLongLong_ppc64 | |
| 327 , &dc_callvm_argFloat_ppc64 | |
| 328 , &dc_callvm_argDouble_ppc64 | |
| 329 , &dc_callvm_argPointer_ppc64 | |
| 330 , NULL /* argStruct */ | |
| 331 , (DCvoidvmfunc*) &dc_callvm_call_ppc64_syscall | |
| 332 , (DCboolvmfunc*) &dc_callvm_call_ppc64_syscall | |
| 333 , (DCcharvmfunc*) &dc_callvm_call_ppc64_syscall | |
| 334 , (DCshortvmfunc*) &dc_callvm_call_ppc64_syscall | |
| 335 , (DCintvmfunc*) &dc_callvm_call_ppc64_syscall | |
| 336 , (DClongvmfunc*) &dc_callvm_call_ppc64_syscall | |
| 337 , (DClonglongvmfunc*) &dc_callvm_call_ppc64_syscall | |
| 338 , (DCfloatvmfunc*) &dc_callvm_call_ppc64_syscall | |
| 339 , (DCdoublevmfunc*) &dc_callvm_call_ppc64_syscall | |
| 340 , (DCpointervmfunc*) &dc_callvm_call_ppc64_syscall | |
| 341 , NULL /* callStruct */ | |
| 342 }; | |
| 343 | |
| 0 | 344 void dc_callvm_mode_ppc64(DCCallVM* in_self, DCint mode) |
| 345 { | |
| 346 DCCallVM_ppc64* self = (DCCallVM_ppc64*) in_self; | |
| 347 DCCallVM_vt* vt; | |
| 84 | 348 |
| 0 | 349 switch(mode) { |
| 84 | 350 case DC_CALL_C_DEFAULT: |
| 0 | 351 case DC_CALL_C_PPC64: |
| 352 case DC_CALL_C_ELLIPSIS: | |
| 353 #if DC__ABI_PPC64_ELF_V == 2 | |
| 354 vt = &gVT_ppc64; | |
| 355 break; | |
| 356 case DC_CALL_C_ELLIPSIS_VARARGS: | |
| 357 vt = &gVT_ppc64_ellipsis; | |
| 358 break; | |
| 359 #else | |
| 360 case DC_CALL_C_ELLIPSIS_VARARGS: | |
| 361 vt = &gVT_ppc64; | |
| 362 break; | |
| 363 #endif | |
| 364 | |
| 7 | 365 case DC_CALL_SYS_DEFAULT: |
| 366 case DC_CALL_SYS_PPC64: | |
| 367 vt = &gVT_ppc64_syscall; | |
| 368 break; | |
| 369 | |
| 0 | 370 default: |
| 371 self->mInterface.mError = DC_ERROR_UNSUPPORTED_MODE; | |
| 372 return; | |
| 373 } | |
| 374 | |
| 375 dc_callvm_base_init(&self->mInterface, vt); | |
| 376 } | |
| 377 | |
| 84 | 378 /* Public API. */ |
| 0 | 379 DCCallVM* dcNewCallVM(DCsize size) |
| 380 { | |
| 84 | 381 DCCallVM_ppc64* p = (DCCallVM_ppc64*)dcAllocMem(sizeof(DCCallVM_ppc64)+size); |
| 382 | |
| 383 dc_callvm_mode_ppc64((DCCallVM*)p, DC_CALL_C_DEFAULT); | |
| 384 | |
| 385 dcVecInit(&p->mVecHead, size); | |
| 386 dc_callvm_reset_ppc64((DCCallVM*)p); | |
| 387 | |
| 388 return (DCCallVM*)p; | |
| 0 | 389 } |
| 390 |