Mercurial > pub > dyncall > dyncall
annotate dyncall/dyncall_callvm_arm32_thumb.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 | 15698dc0cba3 |
| children | ddfb9577a00e |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 | |
| 3 Package: dyncall | |
| 4 Library: dyncall | |
| 5 File: dyncall/dyncall_callvm_arm32_thumb.c | |
| 6 Description: ARM 32-bit "thumb" ABI callvm implementation | |
| 7 License: | |
| 8 | |
| 281 | 9 Copyright (c) 2007-2018 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 32bit ARM32 family of processors | |
| 31 | |
| 32 SUPPORTED CALLING CONVENTIONS | |
| 33 armthumbcall | |
| 34 | |
| 35 REVISION | |
| 36 2007/12/11 initial | |
| 37 | |
| 38 */ | |
| 39 | |
| 40 | |
| 41 #include "dyncall_callvm_arm32_thumb.h" | |
| 42 #include "dyncall_alloc.h" | |
| 43 | |
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44 /* |
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45 ** arm32 thumb mode calling convention calls |
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46 ** |
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47 ** - hybrid return-type call (bool ... pointer) |
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48 ** |
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49 ** Note: return types of this decl and func below are of double-word size, intentionally |
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50 ** to keep some platforms' compilers from generating code in the callers that reuse, and |
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51 ** thus overwrite, r0 and r1 directly after the call. |
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52 ** With this "hint", we preserve those registers by letting the compiler assume both |
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53 ** registers are used for the return type. |
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54 */ |
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55 DClonglong dcCall_arm32_thumb(DCpointer target, DCpointer stackdata, DCsize size); |
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56 |
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57 |
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58 /* Call. */ |
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59 DClonglong dc_callvm_call_arm32_thumb(DCCallVM* in_self, DCpointer target) |
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60 { |
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61 DCCallVM_arm32_thumb* self = (DCCallVM_arm32_thumb*)in_self; |
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62 return dcCall_arm32_thumb(target, dcVecData(&self->mVecHead), dcVecSize(&self->mVecHead)); |
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63 } |
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64 |
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65 |
| 0 | 66 static void dc_callvm_mode_arm32_thumb(DCCallVM* in_self,DCint mode); |
| 67 | |
| 68 static void dc_callvm_free_arm32_thumb(DCCallVM* in_self) | |
| 69 { | |
| 70 dcFreeMem(in_self); | |
| 71 } | |
| 72 | |
| 73 | |
| 74 static void dc_callvm_reset_arm32_thumb(DCCallVM* in_self) | |
| 75 { | |
| 76 DCCallVM_arm32_thumb* self = (DCCallVM_arm32_thumb*)in_self; | |
| 77 dcVecReset(&self->mVecHead); | |
| 78 } | |
| 79 | |
| 80 | |
| 81 static void dc_callvm_argInt_arm32_thumb(DCCallVM* in_self, DCint x) | |
| 82 { | |
| 83 DCCallVM_arm32_thumb* self = (DCCallVM_arm32_thumb*)in_self; | |
| 84 dcVecAppend(&self->mVecHead, &x, sizeof(DCint)); | |
| 85 } | |
| 86 | |
| 87 | |
| 88 static void dc_callvm_argBool_arm32_thumb(DCCallVM* in_self, DCbool x) | |
| 89 { | |
| 90 dc_callvm_argInt_arm32_thumb(in_self, (DCint)x); | |
| 91 } | |
| 92 | |
| 93 | |
| 94 static void dc_callvm_argChar_arm32_thumb(DCCallVM* in_self, DCchar x) | |
| 95 { | |
| 96 dc_callvm_argInt_arm32_thumb(in_self, x); | |
| 97 } | |
| 98 | |
| 99 | |
| 100 static void dc_callvm_argShort_arm32_thumb(DCCallVM* in_self, DCshort x) | |
| 101 { | |
| 102 dc_callvm_argInt_arm32_thumb(in_self, x); | |
| 103 } | |
| 104 | |
| 105 | |
| 106 static void dc_callvm_argLong_arm32_thumb(DCCallVM* in_self, DClong x) | |
| 107 { | |
| 108 dc_callvm_argInt_arm32_thumb(in_self, x); | |
| 109 } | |
| 110 | |
| 111 | |
| 112 static void dc_callvm_argLongLong_arm32_thumb(DCCallVM* in_self, DClonglong x) | |
| 113 { | |
| 114 DCCallVM_arm32_thumb* self = (DCCallVM_arm32_thumb*)in_self; | |
| 115 dcVecAppend(&self->mVecHead, &x, sizeof(DClonglong)); | |
| 116 } | |
| 117 | |
| 118 | |
| 119 static void dc_callvm_argLongLong_arm32_thumb_eabi(DCCallVM* in_self, DClonglong x) | |
| 120 { | |
| 121 DCCallVM_arm32_thumb* self = (DCCallVM_arm32_thumb*)in_self; | |
| 122 | |
| 123 /* 64 bit values need to be aligned on 8 byte boundaries */ | |
| 124 dcVecSkip(&self->mVecHead, dcVecSize(&self->mVecHead) & 4); | |
| 125 dcVecAppend(&self->mVecHead, &x, sizeof(DClonglong)); | |
| 126 } | |
| 127 | |
| 128 | |
| 129 static void dc_callvm_argFloat_arm32_thumb(DCCallVM* in_self, DCfloat x) | |
| 130 { | |
| 131 DCCallVM_arm32_thumb* self = (DCCallVM_arm32_thumb*)in_self; | |
| 132 dcVecAppend(&self->mVecHead, &x, sizeof(DCfloat)); | |
| 133 } | |
| 134 | |
| 135 | |
| 136 static void dc_callvm_argDouble_arm32_thumb(DCCallVM* in_self, DCdouble x) | |
| 137 { | |
| 138 DCCallVM_arm32_thumb* self = (DCCallVM_arm32_thumb*)in_self; | |
| 139 dcVecAppend(&self->mVecHead, &x, sizeof(DCdouble)); | |
| 140 } | |
| 141 | |
| 142 | |
| 143 static void dc_callvm_argDouble_arm32_thumb_eabi(DCCallVM* in_self, DCdouble x) | |
| 144 { | |
| 145 DCCallVM_arm32_thumb* self = (DCCallVM_arm32_thumb*)in_self; | |
| 146 | |
| 147 /* 64 bit values need to be aligned on 8 byte boundaries */ | |
| 148 dcVecSkip(&self->mVecHead, dcVecSize(&self->mVecHead) & 4); | |
| 149 dcVecAppend(&self->mVecHead, &x, sizeof(DCdouble)); | |
| 150 } | |
| 151 | |
| 152 | |
| 153 static void dc_callvm_argPointer_arm32_thumb(DCCallVM* in_self, DCpointer x) | |
| 154 { | |
| 155 DCCallVM_arm32_thumb* self = (DCCallVM_arm32_thumb*)in_self; | |
| 156 dcVecAppend(&self->mVecHead, &x, sizeof(DCpointer)); | |
| 157 } | |
| 158 | |
| 159 | |
| 160 DCCallVM_vt gVT_arm32_thumb = | |
| 161 { | |
| 162 &dc_callvm_free_arm32_thumb | |
| 163 , &dc_callvm_reset_arm32_thumb | |
| 164 , &dc_callvm_mode_arm32_thumb | |
| 165 , &dc_callvm_argBool_arm32_thumb | |
| 166 , &dc_callvm_argChar_arm32_thumb | |
| 167 , &dc_callvm_argShort_arm32_thumb | |
| 168 , &dc_callvm_argInt_arm32_thumb | |
| 169 , &dc_callvm_argLong_arm32_thumb | |
| 170 , &dc_callvm_argLongLong_arm32_thumb | |
| 171 , &dc_callvm_argFloat_arm32_thumb | |
| 172 , &dc_callvm_argDouble_arm32_thumb | |
| 173 , &dc_callvm_argPointer_arm32_thumb | |
| 174 , NULL /* argStruct */ | |
| 175 , (DCvoidvmfunc*) &dc_callvm_call_arm32_thumb | |
| 176 , (DCboolvmfunc*) &dc_callvm_call_arm32_thumb | |
| 177 , (DCcharvmfunc*) &dc_callvm_call_arm32_thumb | |
| 178 , (DCshortvmfunc*) &dc_callvm_call_arm32_thumb | |
| 179 , (DCintvmfunc*) &dc_callvm_call_arm32_thumb | |
| 180 , (DClongvmfunc*) &dc_callvm_call_arm32_thumb | |
| 181 , (DClonglongvmfunc*) &dc_callvm_call_arm32_thumb | |
| 182 , (DCfloatvmfunc*) &dc_callvm_call_arm32_thumb | |
| 183 , (DCdoublevmfunc*) &dc_callvm_call_arm32_thumb | |
| 184 , (DCpointervmfunc*) &dc_callvm_call_arm32_thumb | |
| 185 , NULL /* callStruct */ | |
| 186 }; | |
| 187 | |
| 188 DCCallVM_vt gVT_arm32_thumb_eabi = | |
| 189 { | |
| 190 &dc_callvm_free_arm32_thumb | |
| 191 , &dc_callvm_reset_arm32_thumb | |
| 192 , &dc_callvm_mode_arm32_thumb | |
| 193 , &dc_callvm_argBool_arm32_thumb | |
| 194 , &dc_callvm_argChar_arm32_thumb | |
| 195 , &dc_callvm_argShort_arm32_thumb | |
| 196 , &dc_callvm_argInt_arm32_thumb | |
| 197 , &dc_callvm_argLong_arm32_thumb | |
| 198 , &dc_callvm_argLongLong_arm32_thumb_eabi | |
| 199 , &dc_callvm_argFloat_arm32_thumb | |
| 200 , &dc_callvm_argDouble_arm32_thumb_eabi | |
| 201 , &dc_callvm_argPointer_arm32_thumb | |
| 202 , NULL /* argStruct */ | |
| 203 , (DCvoidvmfunc*) &dc_callvm_call_arm32_thumb | |
| 204 , (DCboolvmfunc*) &dc_callvm_call_arm32_thumb | |
| 205 , (DCcharvmfunc*) &dc_callvm_call_arm32_thumb | |
| 206 , (DCshortvmfunc*) &dc_callvm_call_arm32_thumb | |
| 207 , (DCintvmfunc*) &dc_callvm_call_arm32_thumb | |
| 208 , (DClongvmfunc*) &dc_callvm_call_arm32_thumb | |
| 209 , (DClonglongvmfunc*) &dc_callvm_call_arm32_thumb | |
| 210 , (DCfloatvmfunc*) &dc_callvm_call_arm32_thumb | |
| 211 , (DCdoublevmfunc*) &dc_callvm_call_arm32_thumb | |
| 212 , (DCpointervmfunc*) &dc_callvm_call_arm32_thumb | |
| 213 , NULL /* callStruct */ | |
| 214 }; | |
| 215 | |
| 84 | 216 static void dc_callvm_mode_arm32_thumb(DCCallVM* in_self, DCint mode) |
| 217 { | |
| 218 DCCallVM_arm32_thumb* self = (DCCallVM_arm32_thumb*)in_self; | |
| 219 DCCallVM_vt* vt; | |
| 0 | 220 |
| 84 | 221 switch(mode) { |
| 222 case DC_CALL_C_ELLIPSIS: | |
| 223 case DC_CALL_C_ELLIPSIS_VARARGS: | |
| 0 | 224 /* Check OS if we need EABI as default. */ |
| 225 #if defined(DC__ABI_ARM_EABI) | |
| 84 | 226 case DC_CALL_C_DEFAULT: vt = &gVT_arm32_thumb_eabi; break; |
| 0 | 227 #else |
| 84 | 228 case DC_CALL_C_DEFAULT: vt = &gVT_arm32_thumb; break; |
| 0 | 229 #endif |
| 84 | 230 case DC_CALL_C_ARM_THUMB: vt = &gVT_arm32_thumb; break; |
| 231 case DC_CALL_C_ARM_THUMB_EABI: vt = &gVT_arm32_thumb_eabi; break; | |
| 232 default: | |
| 233 self->mInterface.mError = DC_ERROR_UNSUPPORTED_MODE; | |
| 234 return; | |
| 235 } | |
| 236 dc_callvm_base_init(&self->mInterface, vt); | |
| 0 | 237 } |
| 238 | |
| 84 | 239 /* Public API. */ |
| 240 DCCallVM* dcNewCallVM(DCsize size) | |
| 0 | 241 { |
| 84 | 242 /* Store at least 16 bytes (4 words) for internal spill area. Assembly code depends on it. */ |
| 243 DCCallVM_arm32_thumb* p = (DCCallVM_arm32_thumb*)dcAllocMem(sizeof(DCCallVM_arm32_thumb)+size+16); | |
| 244 | |
| 245 dc_callvm_mode_arm32_thumb((DCCallVM*)p, DC_CALL_C_DEFAULT); | |
| 246 | |
| 247 dcVecInit(&p->mVecHead, size); | |
| 248 | |
| 249 return (DCCallVM*)p; | |
| 0 | 250 } |
| 251 |