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1 /*
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2
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3 Package: dyncall
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4 Library: dyncall
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5 File: dyncall/dyncall_callvm_sparc64.c
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6 Description: Call VM for sparc64 64-bit processor architecture.
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7 License:
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8
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9 Copyright (c) 2011-2015 Daniel Adler <dadler@uni-goettingen.de>
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10
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11 Permission to use, copy, modify, and distribute this software for any
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12 purpose with or without fee is hereby granted, provided that the above
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13 copyright notice and this permission notice appear in all copies.
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14
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15 THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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16 WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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17 MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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18 ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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19 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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20 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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21 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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22
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23 */
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24
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25
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26
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27 #include "dyncall_callvm_sparc64.h"
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28 #include "dyncall_call_sparc64.h"
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29 #include "dyncall_alloc.h"
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30
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31 #define IREGS 6
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32 #define FREGS 16
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33 #define SREGS 16
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34 #define DHEAD (IREGS+FREGS)*8+SREGS*4
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35
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36 /* Reset argument buffer. */
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37 static void dc_callvm_reset_sparc64(DCCallVM* in_self)
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38 {
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39 DCCallVM_sparc64* self = (DCCallVM_sparc64*)in_self;
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40 dcVecResize(&self->mVecHead,DHEAD);
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41 self->mIntRegs = 0;
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42 self->mFloatRegs = 0;
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43 self->mUseSingleFlags = 0;
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44 }
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45
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46 /* Construtor. */
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47 /* the six output registers %o0-%o5 are always loaded, thus we need to ensure the argument buffer has space for at least 24 bytes. */
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48 static DCCallVM* dc_callvm_new_sparc64(DCCallVM_vt* vt, DCsize size)
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49 {
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50 DCCallVM_sparc64* self = (DCCallVM_sparc64*) dcAllocMem(sizeof(DCCallVM_sparc64)+DHEAD+size);
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51 dc_callvm_base_init(&self->mInterface, vt);
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52 dcVecInit(&self->mVecHead,DHEAD+size);
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53 dc_callvm_reset_sparc64(&self->mInterface);
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54 return (DCCallVM*)self;
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55 }
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56
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57 /* Destructor. */
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58 static void dc_callvm_free_sparc64(DCCallVM* in_self)
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59 {
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60 dcFreeMem(in_self);
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61 }
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62
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63 /* all integers are promoted to 64-bit. */
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64
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65 static void dc_callvm_argLongLong_sparc64(DCCallVM* in_self, DClonglong x)
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66 {
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67 DCCallVM_sparc64* self = (DCCallVM_sparc64*)in_self;
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68 if (self->mIntRegs < IREGS) {
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69 * ( (DClonglong*) ( dcVecAt(&self->mVecHead, (self->mIntRegs++)*8) ) ) = x;
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70 } else {
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71 dcVecAppend(&self->mVecHead, &x, sizeof(DClonglong));
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72 }
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73 if (self->mFloatRegs < FREGS) self->mFloatRegs++;
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74 }
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75
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76 static void dc_callvm_argLong_sparc64 (DCCallVM* in_self, DClong x) { dc_callvm_argLongLong_sparc64(in_self, (DClonglong) x ); }
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77 static void dc_callvm_argInt_sparc64 (DCCallVM* in_self, DCint x) { dc_callvm_argLongLong_sparc64(in_self, (DClonglong) x ); }
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78 static void dc_callvm_argBool_sparc64 (DCCallVM* in_self, DCbool x) { dc_callvm_argLongLong_sparc64(in_self, (DClonglong) x ); }
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79 static void dc_callvm_argChar_sparc64 (DCCallVM* in_self, DCchar x) { dc_callvm_argLongLong_sparc64(in_self, (DClonglong) x ); }
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80 static void dc_callvm_argShort_sparc64 (DCCallVM* in_self, DCshort x) { dc_callvm_argLongLong_sparc64(in_self, (DClonglong) x ); }
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81 static void dc_callvm_argPointer_sparc64(DCCallVM* in_self, DCpointer x) { dc_callvm_argLongLong_sparc64(in_self, (DClonglong) x ); }
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82
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83 static void dc_callvm_argDouble_sparc64(DCCallVM* in_self, DCdouble x)
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84 {
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85 DCCallVM_sparc64* self = (DCCallVM_sparc64*)in_self;
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86 if (self->mFloatRegs < FREGS) {
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87 * ((double*)dcVecAt(&self->mVecHead,(IREGS+(self->mFloatRegs++))*8)) = x;
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88 }
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89 if (self->mIntRegs < IREGS) {
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90 self->mIntRegs++;
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91 } else {
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92 dcVecAppend(&self->mVecHead, &x, sizeof(DCdouble));
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93 }
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94 }
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95
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96 static void dc_callvm_argDouble_sparc64_ellipsis(DCCallVM* in_self, DCdouble x)
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97 {
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98 union {
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99 long long l;
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100 double d;
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101 } u;
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102 u.d = x;
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103 dc_callvm_argLongLong_sparc64(in_self, u.l);
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104 }
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105
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106 static void dc_callvm_argFloat_sparc64_ellipsis(DCCallVM* in_self, DCfloat x)
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107 {
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108 dc_callvm_argDouble_sparc64_ellipsis(in_self, (DCdouble) x);
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109 }
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110
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111 static void dc_callvm_argFloat_sparc64(DCCallVM* in_self, DCfloat x)
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112 {
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113 DCCallVM_sparc64* self = (DCCallVM_sparc64*)in_self;
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114 if (self->mFloatRegs < FREGS) {
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115 self->mUseSingleFlags |= 1<<self->mFloatRegs;
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116 * ((float*)dcVecAt(&self->mVecHead,(IREGS+FREGS)*8 + (self->mFloatRegs++)*4)) = x;
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117 }
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118
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119 if (self->mIntRegs < IREGS) {
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120 self->mIntRegs++;
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121 } else {
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122 union {
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123 DCdouble d;
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124 DClonglong l;
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125 DCfloat f[2];
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126 } u;
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127 u.f[1] = x;
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128 dcVecAppend(&self->mVecHead, &u.l, sizeof(DClonglong));
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129 }
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130 }
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131
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132 #if 0
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133 /* call: delegate to default call kernel */
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134 static void dc_callvm_call_sparc64(DCCallVM* in_self, DCpointer target)
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135 {
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136 DCCallVM_sparc64* self = (DCCallVM_sparc64*)in_self;
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137 dcCall_sparc64(target, dcVecSize(&self->mVecHead), dcVecData(&self->mVecHead));
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138 }
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139 #endif
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140
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141 static void dc_callvm_mode_sparc64(DCCallVM* in_self, DCint mode);
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142
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143 DCCallVM_vt gVT_sparc64_ellipsis =
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144 {
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145 &dc_callvm_free_sparc64,
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146 &dc_callvm_reset_sparc64,
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147 &dc_callvm_mode_sparc64,
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148 &dc_callvm_argBool_sparc64,
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149 &dc_callvm_argChar_sparc64,
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150 &dc_callvm_argShort_sparc64,
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151 &dc_callvm_argInt_sparc64,
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152 &dc_callvm_argLong_sparc64,
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153 &dc_callvm_argLongLong_sparc64,
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154 &dc_callvm_argFloat_sparc64_ellipsis,
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155 &dc_callvm_argDouble_sparc64_ellipsis,
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156 &dc_callvm_argPointer_sparc64,
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157 NULL /* argStruct */,
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158 (DCvoidvmfunc*) &dcCall_sparc64,
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159 (DCboolvmfunc*) &dcCall_sparc64,
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160 (DCcharvmfunc*) &dcCall_sparc64,
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161 (DCshortvmfunc*) &dcCall_sparc64,
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162 (DCintvmfunc*) &dcCall_sparc64,
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163 (DClongvmfunc*) &dcCall_sparc64,
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164 (DClonglongvmfunc*) &dcCall_sparc64,
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165 (DCfloatvmfunc*) &dcCall_sparc64,
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166 (DCdoublevmfunc*) &dcCall_sparc64,
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167 (DCpointervmfunc*) &dcCall_sparc64,
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168 NULL /* callStruct */
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169 };
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170
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171 /* CallVM virtual table. */
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172 DCCallVM_vt gVT_sparc64 =
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173 {
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174 &dc_callvm_free_sparc64,
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175 &dc_callvm_reset_sparc64,
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176 &dc_callvm_mode_sparc64,
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177 &dc_callvm_argBool_sparc64,
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178 &dc_callvm_argChar_sparc64,
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179 &dc_callvm_argShort_sparc64,
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180 &dc_callvm_argInt_sparc64,
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181 &dc_callvm_argLong_sparc64,
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182 &dc_callvm_argLongLong_sparc64,
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183 &dc_callvm_argFloat_sparc64,
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184 &dc_callvm_argDouble_sparc64,
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185 &dc_callvm_argPointer_sparc64,
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186 NULL /* argStruct */,
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187 (DCvoidvmfunc*) &dcCall_sparc64,
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188 (DCboolvmfunc*) &dcCall_sparc64,
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189 (DCcharvmfunc*) &dcCall_sparc64,
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190 (DCshortvmfunc*) &dcCall_sparc64,
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191 (DCintvmfunc*) &dcCall_sparc64,
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192 (DClongvmfunc*) &dcCall_sparc64,
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193 (DClonglongvmfunc*) &dcCall_sparc64,
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194 (DCfloatvmfunc*) &dcCall_sparc64,
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195 (DCdoublevmfunc*) &dcCall_sparc64,
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196 (DCpointervmfunc*) &dcCall_sparc64,
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197 NULL /* callStruct */
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198 };
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199
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200 /* mode: only a single mode available currently. */
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201 static void dc_callvm_mode_sparc64(DCCallVM* in_self, DCint mode)
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202 {
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203 switch(mode) {
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204 case DC_CALL_C_DEFAULT:
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205 case DC_CALL_C_ELLIPSIS:
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206 case DC_CALL_C_SPARC64:
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207 in_self->mVTpointer = &gVT_sparc64;
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208 break;
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209 case DC_CALL_C_ELLIPSIS_VARARGS:
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210 in_self->mVTpointer = &gVT_sparc64_ellipsis;
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211 break;
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212 default:
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213 in_self->mError = DC_ERROR_UNSUPPORTED_MODE;
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214 break;
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215 }
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216 }
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217
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218
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219 /* Public API. */
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220 DCCallVM* dcNewCallVM(DCsize size)
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221 {
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222 return dc_callvm_new_sparc64(&gVT_sparc64,size);
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223 }
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224
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225 #if 0
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226 /* Load integer 32-bit. */
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227 static void dc_callvm_argInt_sparc64(DCCallVM* in_self, DCint x)
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228 {
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229 DCCallVM_sparc64* self = (DCCallVM_sparc64*)in_self;
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230 dcVecAppend(&self->mVecHead, &x, sizeof(DCint));
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231 }
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232
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233 /* we propagate Bool,Char,Short,Int to LongLong. */
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234
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235 static void dc_callvm_argBool_sparc64(DCCallVM* in_self, DCbool x) { dc_callvm_argInt_sparc64(in_self, (DCint)x); }
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236 static void dc_callvm_argChar_sparc64(DCCallVM* in_self, DCchar x) { dc_callvm_argInt_sparc64(in_self, (DCint)x); }
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237 static void dc_callvm_argShort_sparc64(DCCallVM* in_self, DCshort x) { dc_callvm_argInt_sparc64(in_self, (DCint)x); }
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238 #endif
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239
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