Mercurial > pub > dyncall > dyncall
annotate dyncall/dyncall_callvm_mips_n32.c @ 663:127b569978cc default tip
- another tweak handling clang trying to be too smart (see last commit)
| author | Tassilo Philipp |
|---|---|
| date | Sun, 24 Mar 2024 13:52:44 +0100 |
| parents | 71c884e610f0 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 | |
| 3 Package: dyncall | |
| 4 Library: dyncall | |
| 5 File: dyncall/dyncall_callvm_mips_n32.c | |
|
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6 Description: mips64 "n32" ABI callvm implementation |
| 0 | 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 64bit MIPS family of processors | |
| 31 | |
| 32 SUPPORTED CALLING CONVENTIONS | |
| 33 n32 | |
| 34 | |
| 35 REVISION | |
| 36 2010/05/30 initial | |
| 37 | |
| 38 in contrast to o32, there is no space reserved for parameters | |
| 39 passed over registers. | |
| 40 more registers are used and registers are always used. | |
| 41 | |
| 42 stack is always 16-byte aligned at entry (call to call-kernel automatically | |
| 43 aligns argument stack. | |
| 44 | |
| 45 integer and float register-file is interleaved either taking one slot up | |
| 46 skipping the other. | |
| 47 | |
| 48 | |
| 49 */ | |
| 50 | |
| 51 | |
| 52 #include "dyncall_callvm_mips_n32.h" | |
| 53 #include "dyncall_alloc.h" | |
| 54 #include "dyncall_utils.h" | |
| 55 | |
|
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56 |
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57 void dcCall_mips_n32(DCpointer target, DCRegData_mips_n32* regdata, DCsize stksize, DCpointer stkdata); |
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58 |
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59 |
| 0 | 60 static void dc_callvm_reset_mips_n32(DCCallVM* in_self) |
| 61 { | |
| 62 DCCallVM_mips_n32* self = (DCCallVM_mips_n32*)in_self; | |
| 63 dcVecReset(&self->mVecHead); | |
| 64 self->mRegCount = 0; | |
| 65 self->mRegData.mUseDouble = 0LL; | |
| 66 } | |
| 67 | |
| 68 | |
| 69 static void dc_callvm_free_mips_n32(DCCallVM* in_self) | |
| 70 { | |
| 71 dcFreeMem(in_self); | |
| 72 } | |
| 73 | |
| 74 /* pass arguments : | |
| 75 | |
| 76 - promote to 64-bit integer. | |
| 77 - fill up integers and float - left-to-right otherwise go over stack. | |
| 78 */ | |
| 79 | |
| 80 /* arg int -- fillup 64-bit integer register file OR push on stack */ | |
| 81 | |
| 82 static void dc_callvm_argLongLong_mips_n32(DCCallVM* in_self, DClonglong Lv) | |
| 83 { | |
| 84 DCCallVM_mips_n32* self = (DCCallVM_mips_n32*)in_self; | |
| 85 /* fillup integer register file */ | |
| 86 if (self->mRegCount < 8) | |
| 87 self->mRegData.mIntData[self->mRegCount++] = Lv; | |
| 88 else | |
| 89 dcVecAppend(&self->mVecHead, &Lv, sizeof(DClonglong)); | |
| 90 } | |
| 91 | |
| 92 static void dc_callvm_argInt_mips_n32(DCCallVM* in_self, DCint i) | |
| 93 { | |
| 94 dc_callvm_argLongLong_mips_n32(in_self, (DClonglong) i ); | |
| 95 } | |
| 96 | |
| 97 static void dc_callvm_argPointer_mips_n32(DCCallVM* in_self, DCpointer x) | |
| 98 { | |
| 99 dc_callvm_argLongLong_mips_n32(in_self, * (DClonglong*) &x ); | |
| 100 } | |
| 101 | |
| 102 static void dc_callvm_argBool_mips_n32(DCCallVM* in_self, DCbool x) | |
| 103 { | |
| 104 dc_callvm_argLongLong_mips_n32(in_self, (DClonglong)x); | |
| 105 } | |
| 106 | |
| 107 static void dc_callvm_argChar_mips_n32(DCCallVM* in_self, DCchar x) | |
| 108 { | |
| 109 dc_callvm_argLongLong_mips_n32(in_self, (DClonglong)x); | |
| 110 } | |
| 111 | |
| 112 static void dc_callvm_argShort_mips_n32(DCCallVM* in_self, DCshort x) | |
| 113 { | |
| 114 dc_callvm_argLongLong_mips_n32(in_self, (DClonglong)x); | |
| 115 } | |
| 116 | |
| 117 static void dc_callvm_argLong_mips_n32(DCCallVM* in_self, DClong x) | |
| 118 { | |
| 119 dc_callvm_argLongLong_mips_n32(in_self, (DClonglong)x); | |
| 120 } | |
| 121 | |
| 122 static void dc_callvm_argDouble_mips_n32(DCCallVM* in_self, DCdouble x) | |
| 123 { | |
| 124 DCCallVM_mips_n32* self = (DCCallVM_mips_n32*)in_self; | |
| 125 if (self->mRegCount < 8) { | |
| 126 self->mRegData.mUseDouble |= 1<<( self->mRegCount ); | |
| 127 self->mRegData.mFloatData[self->mRegCount++].d = x; | |
| 128 } else { | |
| 129 dcVecAppend(&self->mVecHead, &x, sizeof(DCdouble) ); | |
| 130 } | |
| 131 } | |
| 132 | |
| 133 static void dc_callvm_argFloat_mips_n32(DCCallVM* in_self, DCfloat x) | |
| 134 { | |
| 135 DCCallVM_mips_n32* self = (DCCallVM_mips_n32*)in_self; | |
| 136 if (self->mRegCount < 8) { | |
| 137 /*self->mRegData.mFloatData[self->mRegCount++].d = (DCdouble) x;*/ | |
| 138 self->mRegData.mFloatData[self->mRegCount++].f = x; | |
| 139 } else { | |
| 140 dcVecAppend(&self->mVecHead, &x, sizeof(DCfloat) ); | |
| 141 dcVecSkip(&self->mVecHead, sizeof(DCfloat) ); | |
| 142 } | |
| 143 } | |
| 144 | |
| 145 | |
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changeset
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146 /* Ellipsis calls: |
| 0 | 147 - float is promoted to double (due to ANSI C). |
| 148 - double is passed via integer register-file (due to MIPS ABI). | |
| 149 */ | |
| 150 | |
| 151 static void dc_callvm_argDouble_mips_n32_ellipsis(DCCallVM* in_self, DCdouble x) | |
| 152 { | |
| 153 dc_callvm_argLongLong_mips_n32(in_self, * ( (DClonglong*) &x ) ); | |
| 154 } | |
| 155 | |
| 156 static void dc_callvm_argFloat_mips_n32_ellipsis(DCCallVM* in_self, DCfloat x) | |
| 157 { | |
| 158 dc_callvm_argDouble_mips_n32_ellipsis(in_self, (DCdouble) x ); | |
| 159 } | |
| 160 | |
| 161 | |
| 162 /* Call. */ | |
| 163 | |
| 164 void dc_callvm_call_mips_n32(DCCallVM* in_self, DCpointer target) | |
| 165 { | |
| 166 DCCallVM_mips_n32* self = (DCCallVM_mips_n32*)in_self; | |
| 167 /* at minimum provide 16-bytes | |
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cslag
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diff
changeset
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168 which hold the first four integer register as spill area |
| 0 | 169 and are automatically loaded to $4-$7 |
| 170 */ | |
| 171 size_t size = DC_MAX(16, ( ( (unsigned) dcVecSize(&self->mVecHead) ) +7UL ) & (-8UL) ); | |
| 172 dcCall_mips_n32(target, &self->mRegData, size, dcVecData(&self->mVecHead)); | |
| 173 } | |
| 174 | |
| 175 /* Forward Declaration. */ | |
| 176 static void dc_callvm_mode_mips_n32(DCCallVM* in_self,DCint mode); | |
| 177 | |
| 178 DCCallVM_vt gVT_mips_n32 = | |
| 179 { | |
| 180 &dc_callvm_free_mips_n32 | |
| 181 , &dc_callvm_reset_mips_n32 | |
| 182 , &dc_callvm_mode_mips_n32 | |
| 183 , &dc_callvm_argBool_mips_n32 | |
| 184 , &dc_callvm_argChar_mips_n32 | |
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185 , &dc_callvm_argShort_mips_n32 |
| 0 | 186 , &dc_callvm_argInt_mips_n32 |
| 187 , &dc_callvm_argLong_mips_n32 | |
| 188 , &dc_callvm_argLongLong_mips_n32 | |
| 189 , &dc_callvm_argFloat_mips_n32 | |
| 190 , &dc_callvm_argDouble_mips_n32 | |
| 191 , &dc_callvm_argPointer_mips_n32 | |
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192 , NULL /* argAggr */ |
| 0 | 193 , (DCvoidvmfunc*) &dc_callvm_call_mips_n32 |
| 194 , (DCboolvmfunc*) &dc_callvm_call_mips_n32 | |
| 195 , (DCcharvmfunc*) &dc_callvm_call_mips_n32 | |
| 196 , (DCshortvmfunc*) &dc_callvm_call_mips_n32 | |
| 197 , (DCintvmfunc*) &dc_callvm_call_mips_n32 | |
| 198 , (DClongvmfunc*) &dc_callvm_call_mips_n32 | |
| 199 , (DClonglongvmfunc*) &dc_callvm_call_mips_n32 | |
| 200 , (DCfloatvmfunc*) &dc_callvm_call_mips_n32 | |
| 201 , (DCdoublevmfunc*) &dc_callvm_call_mips_n32 | |
| 202 , (DCpointervmfunc*) &dc_callvm_call_mips_n32 | |
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203 , NULL /* callAggr */ |
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204 , NULL /* beginAggr */ |
| 0 | 205 }; |
| 206 | |
| 207 DCCallVM_vt gVT_mips_n32_ellipsis = | |
| 208 { | |
| 209 &dc_callvm_free_mips_n32 | |
| 210 , &dc_callvm_reset_mips_n32 | |
| 211 , &dc_callvm_mode_mips_n32 | |
| 212 , &dc_callvm_argBool_mips_n32 | |
| 213 , &dc_callvm_argChar_mips_n32 | |
| 214 , &dc_callvm_argShort_mips_n32 | |
| 215 , &dc_callvm_argInt_mips_n32 | |
| 216 , &dc_callvm_argLong_mips_n32 | |
| 217 , &dc_callvm_argLongLong_mips_n32 | |
| 218 , &dc_callvm_argFloat_mips_n32_ellipsis | |
| 219 , &dc_callvm_argDouble_mips_n32_ellipsis | |
| 220 , &dc_callvm_argPointer_mips_n32 | |
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Tassilo Philipp
parents:
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diff
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221 , NULL /* argAggr */ |
| 0 | 222 , (DCvoidvmfunc*) &dc_callvm_call_mips_n32 |
| 223 , (DCboolvmfunc*) &dc_callvm_call_mips_n32 | |
| 224 , (DCcharvmfunc*) &dc_callvm_call_mips_n32 | |
| 225 , (DCshortvmfunc*) &dc_callvm_call_mips_n32 | |
| 226 , (DCintvmfunc*) &dc_callvm_call_mips_n32 | |
| 227 , (DClongvmfunc*) &dc_callvm_call_mips_n32 | |
| 228 , (DClonglongvmfunc*) &dc_callvm_call_mips_n32 | |
| 229 , (DCfloatvmfunc*) &dc_callvm_call_mips_n32 | |
| 230 , (DCdoublevmfunc*) &dc_callvm_call_mips_n32 | |
| 231 , (DCpointervmfunc*) &dc_callvm_call_mips_n32 | |
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Tassilo Philipp
parents:
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232 , NULL /* callAggr */ |
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71c884e610f0
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Tassilo Philipp
parents:
466
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changeset
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233 , NULL /* beginAggr */ |
| 0 | 234 }; |
| 235 | |
| 84 | 236 static void dc_callvm_mode_mips_n32(DCCallVM* in_self, DCint mode) |
| 0 | 237 { |
| 84 | 238 DCCallVM_mips_n32* self = (DCCallVM_mips_n32*)in_self; |
| 239 DCCallVM_vt* vt; | |
| 240 | |
| 0 | 241 switch(mode) { |
| 242 case DC_CALL_C_DEFAULT: | |
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243 case DC_CALL_C_DEFAULT_THIS: |
| 84 | 244 case DC_CALL_C_MIPS64_N32: |
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245 case DC_CALL_C_ELLIPSIS: |
| 84 | 246 vt = &gVT_mips_n32; |
| 0 | 247 break; |
| 84 | 248 case DC_CALL_C_ELLIPSIS_VARARGS: |
| 249 vt = &gVT_mips_n32_ellipsis; | |
| 0 | 250 break; |
| 251 default: | |
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252 self->mInterface.mError = DC_ERROR_UNSUPPORTED_MODE; |
| 84 | 253 return; |
| 0 | 254 } |
| 84 | 255 dc_callvm_base_init(&self->mInterface, vt); |
| 0 | 256 } |
| 257 | |
| 84 | 258 /* Public API. */ |
| 259 DCCallVM* dcNewCallVM(DCsize size) | |
| 0 | 260 { |
| 84 | 261 DCCallVM_mips_n32* p = (DCCallVM_mips_n32*)dcAllocMem(sizeof(DCCallVM_mips_n32)+size); |
| 262 | |
| 263 dc_callvm_mode_mips_n32((DCCallVM*)p, DC_CALL_C_DEFAULT); | |
| 264 | |
| 265 dcVecInit(&p->mVecHead, size); | |
| 266 dc_callvm_reset_mips_n32((DCCallVM*)p); | |
| 267 | |
| 268 return (DCCallVM*)p; | |
| 0 | 269 } |
| 270 |