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0
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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_arm64_apple.c
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6 Description: ARM 64-bit Apple ABI implementation
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7 License:
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8
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9 Copyright (c) 2015 Daniel Adler <dadler@uni-goettingen.de>,
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10 Tassilo Philipp <tphilipp@potion-studios.com>
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11
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12 Permission to use, copy, modify, and distribute this software for any
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13 purpose with or without fee is hereby granted, provided that the above
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14 copyright notice and this permission notice appear in all copies.
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15
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16 THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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17 WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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18 MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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19 ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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20 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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21 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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22 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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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_arm64.h"
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28 #include "dyncall_alloc.h"
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29
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30
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31 static void reset(DCCallVM* in_p)
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32 {
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33 DCCallVM_arm64* p = (DCCallVM_arm64*)in_p;
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34 p->i = 0;
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35 p->f = 0;
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36 dcVecReset(&p->mVecHead);
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37 }
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38
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39
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40 static void deinit(DCCallVM* in_p)
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41 {
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42 dcFreeMem(in_p);
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43 }
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44
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45
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46
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47 static void a_i64(DCCallVM* in_p, DClonglong x)
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48 {
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49 DCCallVM_arm64* p = (DCCallVM_arm64*)in_p;
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50 if (p->i < 8) {
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51 p->I[p->i] = x;
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52 p->i++;
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53 } else {
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54 dcVecAlign(&p->mVecHead, sizeof(DClonglong));
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55 dcVecAppend(&p->mVecHead, &x, sizeof(DClonglong));
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56 }
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57 }
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58
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8
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59 static void var_i64 (DCCallVM* in_p, DClonglong x)
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60 {
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61 DCCallVM_arm64* p = (DCCallVM_arm64*)in_p;
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62 dcVecAlign(&p->mVecHead, sizeof(DClonglong));
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63 dcVecAppend(&p->mVecHead, &x, sizeof(DClonglong));
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64 }
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65 static void var_bool (DCCallVM* in_p, DCbool x) { var_i64( in_p, ((DClonglong) x) ); }
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66 static void var_char (DCCallVM* in_p, DCchar x) { var_i64( in_p, ((DClonglong) x) ); }
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67 static void var_short (DCCallVM* in_p, DCshort x) { var_i64( in_p, ((DClonglong) x) ); }
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68 static void var_int (DCCallVM* in_p, DCint x) { var_i64( in_p, ((DClonglong) x) ); }
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69 static void var_long (DCCallVM* in_p, DClong x) { var_i64( in_p, ((DClonglong) x) ); }
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12
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70 static void var_double (DCCallVM* in_p, DCdouble x) {
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8
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71 DCCallVM_arm64* p = (DCCallVM_arm64*)in_p;
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72 dcVecAlign(&p->mVecHead, sizeof(DCdouble));
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73 dcVecAppend(&p->mVecHead, &x, sizeof(DCdouble));
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74 }
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75 static void var_float (DCCallVM* in_p, DCfloat x) {
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76 var_double( in_p, (DCdouble) x );
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77 }
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78 static void var_pointer (DCCallVM* in_p, DCpointer x) {
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79 var_i64(in_p, (DClonglong) x );
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80 }
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81
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0
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82 static void a_bool (DCCallVM* in_p, DCbool x)
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83 {
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84 DCCallVM_arm64* p = (DCCallVM_arm64*)in_p;
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85 if (p->i < 8) {
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86 p->I[p->i] = (DClonglong) x;
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87 p->i++;
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88 } else {
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89 dcVecAlign(&p->mVecHead, sizeof(DCbool));
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90 dcVecAppend(&p->mVecHead, &x, sizeof(DCbool));
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91 }
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92 }
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93 static void a_char (DCCallVM* in_p, DCchar x)
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94 {
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95 DCCallVM_arm64* p = (DCCallVM_arm64*)in_p;
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96 if (p->i < 8) {
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97 p->I[p->i] = (DClonglong) x;
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98 p->i++;
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99 } else {
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100 dcVecAppend(&p->mVecHead, &x, sizeof(DCchar));
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101 }
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102 }
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103 static void a_short (DCCallVM* in_p, DCshort x)
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104 {
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105 DCCallVM_arm64* p = (DCCallVM_arm64*)in_p;
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106 if (p->i < 8) {
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107 p->I[p->i] = (DClonglong) x;
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108 p->i++;
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109 } else {
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110 dcVecAlign(&p->mVecHead, sizeof(DCshort));
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111 dcVecAppend(&p->mVecHead, &x, sizeof(DCshort));
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112 }
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113 }
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114 static void a_int (DCCallVM* in_p, DCint x)
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115 {
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116 DCCallVM_arm64* p = (DCCallVM_arm64*)in_p;
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117 if (p->i < 8) {
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118 p->I[p->i] = (DClonglong) x;
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119 p->i++;
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120 } else {
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121 dcVecAlign(&p->mVecHead, sizeof(DCint));
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122 dcVecAppend(&p->mVecHead, &x, sizeof(DCint));
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123 }
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124 }
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125 static void a_long (DCCallVM* in_p, DClong x)
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126 {
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127 DCCallVM_arm64* p = (DCCallVM_arm64*)in_p;
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128 if (p->i < 8) {
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129 p->I[p->i] = (DClonglong) x;
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130 p->i++;
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131 } else {
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132 dcVecAlign(&p->mVecHead, sizeof(DClong));
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133 dcVecAppend(&p->mVecHead, &x, sizeof(DClong));
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134 }
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135 }
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136 static void a_pointer (DCCallVM* in_p, DCpointer x) { a_i64(in_p, (DClonglong) x ); }
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137
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138 static void a_float(DCCallVM* in_p, DCfloat x)
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139 {
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140 DCCallVM_arm64* p = (DCCallVM_arm64*)in_p;
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141
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142 if (p->f < 8) {
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143 p->u.S[ p->f << 1 ] = x;
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144 p->f++;
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145 } else {
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146 dcVecAlign(&p->mVecHead, sizeof(DCfloat));
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147 dcVecAppend(&p->mVecHead, &x, sizeof(DCfloat));
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148 }
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149 }
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150
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151 static void a_double(DCCallVM* in_p, DCdouble x)
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152 {
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153 DCCallVM_arm64* p = (DCCallVM_arm64*)in_p;
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154 if (p->f < 8) {
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155 p->u.D[ p->f ] = x;
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156 p->f++;
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157 } else {
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158 dcVecAlign(&p->mVecHead, sizeof(DCdouble));
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159 dcVecAppend(&p->mVecHead, &x, sizeof(DCdouble));
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160 }
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161 }
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162
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163 void call(DCCallVM* in_p, DCpointer target)
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164 {
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165 DCCallVM_arm64* p = (DCCallVM_arm64*)in_p;
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166
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167 /*
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168 ** copy 'size' argument is given in number of 16-byte 'pair' blocks.
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169 */
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170
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171 dcCall_arm64(target, dcVecData(&p->mVecHead), ( dcVecSize(&p->mVecHead) + 15 ) & -16, &p->u.S[0]);
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172 }
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173
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84
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174 static void mode(DCCallVM* in_p,DCint mode);
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175
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0
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176 DCCallVM_vt vt_arm64 =
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177 {
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178 &deinit
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179 , &reset
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180 , &mode
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181 , &a_bool
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182 , &a_char
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183 , &a_short
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184 , &a_int
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185 , &a_long
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186 , &a_i64
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187 , &a_float
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188 , &a_double
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189 , &a_pointer
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190 , NULL /* argStruct */
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191 , (DCvoidvmfunc*) &call
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192 , (DCboolvmfunc*) &call
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193 , (DCcharvmfunc*) &call
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194 , (DCshortvmfunc*) &call
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195 , (DCintvmfunc*) &call
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196 , (DClongvmfunc*) &call
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197 , (DClonglongvmfunc*) &call
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198 , (DCfloatvmfunc*) &call
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199 , (DCdoublevmfunc*) &call
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200 , (DCpointervmfunc*) &call
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201 , NULL /* callStruct */
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202 };
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203
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204 DCCallVM_vt vt_arm64_variadic =
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205 {
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206 &deinit
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207 , &reset
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208 , &mode
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209 , &var_bool
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210 , &var_char
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211 , &var_short
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212 , &var_int
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213 , &var_long
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214 , &var_i64
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215 , &var_float
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216 , &var_double
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217 , &var_pointer
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218 , NULL /* argStruct */
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219 , (DCvoidvmfunc*) &call
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220 , (DCboolvmfunc*) &call
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221 , (DCcharvmfunc*) &call
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222 , (DCshortvmfunc*) &call
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223 , (DCintvmfunc*) &call
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224 , (DClongvmfunc*) &call
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225 , (DClonglongvmfunc*) &call
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226 , (DCfloatvmfunc*) &call
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227 , (DCdoublevmfunc*) &call
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228 , (DCpointervmfunc*) &call
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229 , NULL /* callStruct */
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230 };
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231
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84
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232 static void mode(DCCallVM* in_self, DCint mode)
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0
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233 {
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234 DCCallVM_arm64* self = (DCCallVM_arm64*)in_self;
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235 DCCallVM_vt* vt;
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0
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236
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237 switch(mode) {
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238 case DC_CALL_C_DEFAULT:
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84
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239 case DC_CALL_C_ARM64:
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8
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240 case DC_CALL_C_ELLIPSIS:
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241 vt = &vt_arm64;
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242 break;
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243 case DC_CALL_C_ELLIPSIS_VARARGS:
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244 vt = &vt_arm64_variadic;
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245 break;
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246 default:
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247 self->mInterface.mError = DC_ERROR_UNSUPPORTED_MODE;
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248 return;
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249 }
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84
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250 dc_callvm_base_init(&self->mInterface, vt);
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0
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251 }
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252
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84
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253 /* Public API. */
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254 DCCallVM* dcNewCallVM(DCsize size)
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255 {
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256 DCCallVM_arm64* p = (DCCallVM_arm64*)dcAllocMem(sizeof(DCCallVM_arm64)+size);
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257
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258 mode((DCCallVM*)p, DC_CALL_C_DEFAULT);
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259
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260 dcVecInit(&p->mVecHead, size);
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261 reset((DCCallVM*)p);
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262
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263 return (DCCallVM*)p;
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264 }
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265
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