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annotate dyncall/dyncall_callvm_mips_o32.c @ 457:90b1d927912a
- suite_aggrs: make sure random memory used doesn't ever result in NaN fp values (for every possible address), as this messes with result comparison
| author | Tassilo Philipp |
|---|---|
| date | Fri, 28 Jan 2022 14:11:21 +0100 |
| parents | ad5f9803f52f |
| children | e2899b4ff713 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 | |
| 3 Package: dyncall | |
| 4 Library: dyncall | |
| 5 File: dyncall/dyncall_callvm_mips_o32.c | |
| 6 Description: mips "o32" ABI callvm implementation | |
| 7 License: | |
| 8 | |
|
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9 Copyright (c) 2007-2020 Daniel Adler <dadler@uni-goettingen.de>, |
| 0 | 10 Tassilo Philipp <tphilipp@potion-studios.com> |
| 11 | |
| 12 Permission to use, copy, modify, and distribute this software for any | |
| 13 purpose with or without fee is hereby granted, provided that the above | |
| 14 copyright notice and this permission notice appear in all copies. | |
| 15 | |
| 16 THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
| 17 WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
| 18 MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |
| 19 ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
| 20 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
| 21 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
| 22 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
| 23 | |
| 24 */ | |
| 25 | |
| 26 | |
| 27 | |
| 28 /* | |
| 29 | |
| 30 dyncall callvm for mips o32 abi | |
| 31 | |
| 32 REVISION | |
| 33 2010/06/03 initial | |
| 34 | |
| 35 NOTES: | |
| 36 we need an argument counter for supporting floating point arguments | |
| 37 correctly. | |
| 38 | |
| 39 first two (if any) double/float arguments are mapped via a common structure -- | |
| 40 code must take care to write the right float argument indices which | |
| 41 differs on C and Assembly-side depending on endianness. (therefore | |
| 42 both sources have two variants 'mipseb' and 'mipsel'.) | |
| 43 (only for the first two float/double arguments) see float/double handling | |
| 44 | |
| 45 although, the abi does not expect usage of floats if first argument is | |
| 46 not floating point, the call kernel can be used universal for all cases. | |
| 47 | |
| 48 */ | |
| 49 | |
| 50 | |
| 51 #include "dyncall_callvm_mips_o32.h" | |
| 52 #include "dyncall_alloc.h" | |
| 53 #include "dyncall_utils.h" | |
| 54 | |
| 55 | |
|
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56 void dcCall_mips_o32(DCpointer target, DCRegData_mips_o32* regdata, DCsize stksize, DCpointer stkdata); |
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57 |
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58 |
| 0 | 59 static void dc_callvm_reset_mips_o32(DCCallVM* in_self) |
| 60 { | |
| 61 DCCallVM_mips_o32* self = (DCCallVM_mips_o32*)in_self; | |
| 62 dcVecReset(&self->mVecHead); | |
| 63 self->mArgCount = 0; | |
| 64 } | |
| 65 | |
| 66 | |
| 67 static void dc_callvm_free_mips_o32(DCCallVM* in_self) | |
| 68 { | |
| 69 dcFreeMem(in_self); | |
| 70 } | |
| 71 | |
| 72 /* arg int -- fillup integer register file OR push on stack */ | |
| 73 | |
| 74 static void dc_callvm_argInt_mips_o32(DCCallVM* in_self, DCint i) | |
| 75 { | |
| 76 DCCallVM_mips_o32* self = (DCCallVM_mips_o32*)in_self; | |
| 77 dcVecAppend(&self->mVecHead, &i, sizeof(DCint)); | |
| 78 self->mArgCount++; | |
| 79 } | |
| 80 | |
| 81 static void dc_callvm_argPointer_mips_o32(DCCallVM* in_self, DCpointer x) | |
| 82 { | |
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83 dc_callvm_argInt_mips_o32(in_self, *(DCint*)&x); |
| 0 | 84 } |
| 85 | |
| 86 static void dc_callvm_argBool_mips_o32(DCCallVM* in_self, DCbool x) | |
| 87 { | |
| 88 dc_callvm_argInt_mips_o32(in_self, (DCint)x); | |
| 89 } | |
| 90 | |
| 91 static void dc_callvm_argChar_mips_o32(DCCallVM* in_self, DCchar x) | |
| 92 { | |
| 93 dc_callvm_argInt_mips_o32(in_self, (DCint)x); | |
| 94 } | |
| 95 | |
| 96 static void dc_callvm_argShort_mips_o32(DCCallVM* in_self, DCshort x) | |
| 97 { | |
| 98 dc_callvm_argInt_mips_o32(in_self, (DCint)x); | |
| 99 } | |
| 100 | |
| 101 static void dc_callvm_argLong_mips_o32(DCCallVM* in_self, DClong x) | |
| 102 { | |
| 103 dc_callvm_argInt_mips_o32(in_self, (DCint)x); | |
| 104 } | |
| 105 | |
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106 static void dc_callvm_argLongLong_mips_o32(DCCallVM* in_self, DClonglong x) |
| 0 | 107 { |
| 108 DCCallVM_mips_o32* self = (DCCallVM_mips_o32*)in_self; | |
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109 |
| 0 | 110 /* 64-bit values need to be aligned on 8 byte boundaries */ |
| 111 dcVecSkip(&self->mVecHead, dcVecSize(&self->mVecHead) & 4); | |
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112 dcVecAppend(&self->mVecHead, &x, sizeof(DClonglong)); |
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113 self->mArgCount++; |
| 0 | 114 } |
| 115 | |
| 116 static void dc_callvm_argFloat_mips_o32(DCCallVM* in_self, DCfloat x) | |
| 117 { | |
| 118 DCCallVM_mips_o32* self = (DCCallVM_mips_o32*)in_self; | |
| 119 | |
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120 dcVecAppend(&self->mVecHead, &x, sizeof(DCfloat)); |
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121 |
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122 #if defined(DC__ABI_HARDFLOAT) |
| 0 | 123 if (self->mArgCount < 2) { |
| 305 | 124 /* @@@ unsure if we should zero init, here; seems to work as-is */ |
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125 # if defined(DC__Endian_LITTLE) |
| 0 | 126 self->mRegData.u[self->mArgCount].f[0] = x; |
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127 # else |
| 305 | 128 self->mRegData.u[self->mArgCount].f[1] = x; // floats in regs always right justified |
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129 # endif |
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130 # if 0 |
| 0 | 131 self->mRegData.u[self->mArgCount].f[1] = x; |
| 132 call kernel | |
| 133 | |
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134 mips: |
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135 lwc1 $f12, 4($5) <--- byte offset 4 |
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136 lwc1 $f13, 0($5) |
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137 lwc1 $f14, 12($5) <--- byte offset 12 |
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138 lwc1 $f15, 8($5) |
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139 mipsel: |
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140 lwc1 $f12, 0($5) <--- byte offset 4 |
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141 lwc1 $f13, 4($5) |
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142 lwc1 $f14, 8($5) <--- byte offset 12 |
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143 lwc1 $f15, 12($5) |
| 0 | 144 |
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145 # if defined(DC__Endian_LITTLE) |
| 0 | 146 /* index 0 and 2 */ |
| 147 self->mRegData.floats[self->mArgCount*2] = x; | |
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148 # else |
| 0 | 149 /* index 1 and 3 */ |
| 150 self->mRegData.floats[self->mArgCount*2+1] = x; | |
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151 # endif |
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152 # endif |
| 0 | 153 } |
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154 #endif /* DC__ABI_HARDFLOAT */ |
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155 |
| 0 | 156 self->mArgCount++; |
| 157 } | |
| 158 | |
| 159 static void dc_callvm_argDouble_mips_o32(DCCallVM* in_self, DCdouble x) | |
| 160 { | |
| 161 DCCallVM_mips_o32* self = (DCCallVM_mips_o32*)in_self; | |
| 162 /* 64-bit values need to be aligned on 8 byte boundaries */ | |
| 163 dcVecSkip(&self->mVecHead, dcVecSize(&self->mVecHead) & 4); | |
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164 dcVecAppend(&self->mVecHead, &x, sizeof(DCdouble)); |
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165 |
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166 #if defined(DC__ABI_HARDFLOAT) |
| 0 | 167 if (self->mArgCount < 2) |
| 168 self->mRegData.u[self->mArgCount].d = x; | |
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169 #endif /* DC__ABI_HARDFLOAT */ |
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170 |
| 0 | 171 self->mArgCount++; |
| 172 } | |
| 173 | |
| 174 /* Call. */ | |
| 175 void dc_callvm_call_mips_o32(DCCallVM* in_self, DCpointer target) | |
| 176 { | |
| 177 DCCallVM_mips_o32* self = (DCCallVM_mips_o32*)in_self; | |
| 178 | |
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179 /* provide multiple of 8 (reflecting stack area alignment requirement), and |
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180 minimum of 16-bytes (to hold first 4 int regis as spill area ($4-$7)) */ |
| 0 | 181 size_t size = DC_MAX(16, ( ( (unsigned) dcVecSize(&self->mVecHead) ) +7UL ) & (-8UL) ); |
| 182 | |
| 183 dcCall_mips_o32(target, &self->mRegData, size, dcVecData(&self->mVecHead)); | |
| 184 } | |
| 185 | |
| 84 | 186 static void dc_callvm_mode_mips_o32(DCCallVM* in_self, DCint mode); |
| 187 | |
| 0 | 188 DCCallVM_vt gVT_mips_o32 = |
| 189 { | |
| 190 &dc_callvm_free_mips_o32 | |
| 191 , &dc_callvm_reset_mips_o32 | |
| 192 , &dc_callvm_mode_mips_o32 | |
| 193 , &dc_callvm_argBool_mips_o32 | |
| 194 , &dc_callvm_argChar_mips_o32 | |
| 195 , &dc_callvm_argShort_mips_o32 | |
| 196 , &dc_callvm_argInt_mips_o32 | |
| 197 , &dc_callvm_argLong_mips_o32 | |
| 198 , &dc_callvm_argLongLong_mips_o32 | |
| 199 , &dc_callvm_argFloat_mips_o32 | |
| 200 , &dc_callvm_argDouble_mips_o32 | |
| 201 , &dc_callvm_argPointer_mips_o32 | |
| 202 , NULL /* argStruct */ | |
| 203 , (DCvoidvmfunc*) &dc_callvm_call_mips_o32 | |
| 204 , (DCboolvmfunc*) &dc_callvm_call_mips_o32 | |
| 205 , (DCcharvmfunc*) &dc_callvm_call_mips_o32 | |
| 206 , (DCshortvmfunc*) &dc_callvm_call_mips_o32 | |
| 207 , (DCintvmfunc*) &dc_callvm_call_mips_o32 | |
| 208 , (DClongvmfunc*) &dc_callvm_call_mips_o32 | |
| 209 , (DClonglongvmfunc*) &dc_callvm_call_mips_o32 | |
| 210 , (DCfloatvmfunc*) &dc_callvm_call_mips_o32 | |
| 211 , (DCdoublevmfunc*) &dc_callvm_call_mips_o32 | |
| 212 , (DCpointervmfunc*) &dc_callvm_call_mips_o32 | |
| 213 , NULL /* callStruct */ | |
| 214 }; | |
| 215 | |
| 84 | 216 /* mode: only a single mode available currently. */ |
| 217 static void dc_callvm_mode_mips_o32(DCCallVM* in_self, DCint mode) | |
| 0 | 218 { |
| 84 | 219 DCCallVM_mips_o32* self = (DCCallVM_mips_o32*)in_self; |
| 220 DCCallVM_vt* vt; | |
| 221 | |
| 222 switch(mode) { | |
| 223 case DC_CALL_C_DEFAULT: | |
| 224 case DC_CALL_C_MIPS32_O32: | |
| 225 case DC_CALL_C_ELLIPSIS: | |
| 226 case DC_CALL_C_ELLIPSIS_VARARGS: | |
| 227 vt = &gVT_mips_o32; | |
| 228 break; | |
| 229 default: | |
| 230 self->mInterface.mError = DC_ERROR_UNSUPPORTED_MODE; | |
| 231 return; | |
| 232 } | |
| 233 dc_callvm_base_init(&self->mInterface, vt); | |
| 0 | 234 } |
| 235 | |
| 84 | 236 /* Public API. */ |
| 0 | 237 DCCallVM* dcNewCallVM(DCsize size) |
| 238 { | |
| 84 | 239 DCCallVM_mips_o32* p = (DCCallVM_mips_o32*)dcAllocMem(sizeof(DCCallVM_mips_o32)+size); |
| 240 | |
| 241 dc_callvm_mode_mips_o32((DCCallVM*)p, DC_CALL_C_DEFAULT); | |
| 242 | |
| 243 dcVecInit(&p->mVecHead, size); | |
| 244 dc_callvm_reset_mips_o32((DCCallVM*)p); | |
| 245 | |
| 246 return (DCCallVM*)p; | |
| 0 | 247 } |
| 248 |