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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_ppc64.c
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6 Description:
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7 License:
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8
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9 Copyright (c) 2014-2015 Masanori Mitsugi <mitsugi@linux.vnet.ibm.com>
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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
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28 dyncall callvm for ppc64 architectures
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29
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30 SUPPORTED CALLING CONVENTIONS
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31 ppc64/linux
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7
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32 ppc64/syscall
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0
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33
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34 REVISION
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7
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35 2015/07/08 added syscall
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0
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36 2014/08/07 initial support
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37
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38 */
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39
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40 #include "dyncall_callvm_ppc64.h"
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41 #include "dyncall_call_ppc64.h"
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42 #include "dyncall_alloc.h"
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43 #include "dyncall_macros.h"
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44 #include "dyncall_types.h"
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45
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46 /* Support for Power PC 64-bit */
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47
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48 static void dc_callvm_free_ppc64(DCCallVM* in_self)
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49 {
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50 dcFreeMem(in_self);
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51 }
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52
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53 static void dc_callvm_reset_ppc64(DCCallVM* in_self)
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54 {
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55 DCCallVM_ppc64* self = (DCCallVM_ppc64*)in_self;
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56 dcVecReset(&self->mVecHead);
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57 self->mIntRegs = 0;
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58 self->mFloatRegs = 0;
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59 }
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60
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61 /* fillup integer register file AND push on stack (for ellipsis) */
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62
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63 static void dc_callvm_argInt_ppc64(DCCallVM* in_self, DCint i)
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64 {
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65 /* promote to longlong */
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66 dcArgLongLong(in_self, (DClonglong)i);
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67 }
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68
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69 /** floating-point **/
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70
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71 /* double*/
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72
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73 static void dc_callvm_argDouble_ppc64(DCCallVM* in_self, DCdouble d)
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74 {
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75 DCCallVM_ppc64* self = (DCCallVM_ppc64*)in_self;
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76
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77 if (self->mFloatRegs < 13) {
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78 self->mRegData.mFloatData[self->mFloatRegs++] = d;
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79 if (self->mIntRegs < 8) {
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80 self->mRegData.mIntData[self->mIntRegs++] = *( (DClonglong*) &d );
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81 #if DC__ABI_PPC64_ELF_V == 2
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82 return;
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83 #endif
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84 }
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85 }
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86
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87 #if DC__ABI_PPC64_ELF_V == 2
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88 if (dcVecSize(&self->mVecHead) == 0) {
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89 dcVecSkip(&self->mVecHead,sizeof(DClonglong)*8);
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90 }
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91 #endif
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92
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93 /* push on stack */
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94 dcVecAppend(&self->mVecHead,(DCpointer) &d,sizeof(DCdouble));
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95 }
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96
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97 #if DC__ABI_PPC64_ELF_V == 2
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98 static void dc_callvm_argDouble_ppc64_ellipsis(DCCallVM* in_self, DCdouble d)
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99 {
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100 DCCallVM_ppc64* self = (DCCallVM_ppc64*)in_self;
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101
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102 if (dcVecSize(&self->mVecHead) == 0)
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103 dcVecSkip(&self->mVecHead,(sizeof(DClonglong))*(self->mIntRegs));
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104
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105 if (self->mFloatRegs < 13) {
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106 self->mRegData.mFloatData[self->mFloatRegs++] = d;
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107 if (self->mIntRegs < 8) {
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108 self->mRegData.mIntData[self->mIntRegs++] = *( (DClonglong*) &d );
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109 }
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110 }
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111
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112 /* push on stack */
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113 dcVecAppend(&self->mVecHead,(DCpointer) &d,sizeof(DCdouble));
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114 }
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115 #endif
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116
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117
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118 /* Floating-point */
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119
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120 static void dc_callvm_argFloat_ppc64(DCCallVM* in_self, DCfloat f)
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121 {
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122 /* promote to double */
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123 dcArgDouble(in_self, (DCdouble) f );
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124 }
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125
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126 /* long long integer */
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127
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128 static void dc_callvm_argLongLong_ppc64(DCCallVM* in_self, DClonglong L)
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129 {
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130 DCCallVM_ppc64* self = (DCCallVM_ppc64*)in_self;
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131
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132 /* fillup integer register file */
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133 if (self->mIntRegs < 8) {
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134 self->mRegData.mIntData[self->mIntRegs++] = L;
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135 #if DC__ABI_PPC64_ELF_V == 2
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136 return;
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137 #endif
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138 }
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139
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140 #if DC__ABI_PPC64_ELF_V == 2
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141 if (dcVecSize(&self->mVecHead) == 0) {
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142 dcVecSkip(&self->mVecHead,sizeof(DClonglong)*8);
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143 }
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144 #endif
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145
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146 /* push on stack */
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147 dcVecAppend(&self->mVecHead,&L,sizeof(DClonglong));
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148 }
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149
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150 #if DC__ABI_PPC64_ELF_V == 2
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151 static void dc_callvm_argLongLong_ppc64_ellipsis(DCCallVM* in_self, DClonglong L)
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152 {
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153 DCCallVM_ppc64* self = (DCCallVM_ppc64*)in_self;
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154
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155 if (dcVecSize(&self->mVecHead) == 0)
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156 dcVecSkip(&self->mVecHead,(sizeof(DClonglong))*(self->mIntRegs));
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157
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158 if (self->mIntRegs < 8)
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159 self->mRegData.mIntData[self->mIntRegs++] = L;
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160
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161 /* push on stack */
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162 dcVecAppend(&self->mVecHead,&L,sizeof(DClonglong));
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163 }
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164 #endif
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165
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166
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167 static void dc_callvm_argBool_ppc64(DCCallVM* in_self, DCbool x)
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168 {
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169 /* promote to longlong */
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170 dcArgLongLong(in_self, (DClonglong) x );
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171 }
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172
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173
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174 static void dc_callvm_argChar_ppc64(DCCallVM* in_self, DCchar ch)
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175 {
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176 /* promote to longlong */
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177 dcArgLongLong(in_self, (DClonglong) ch );
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178 }
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179
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180
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181 static void dc_callvm_argShort_ppc64(DCCallVM* in_self, DCshort s)
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182 {
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183 /* promote to longlong */
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184 dcArgLongLong(in_self, (DClonglong) s );
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185 }
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186
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187
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188 static void dc_callvm_argLong_ppc64(DCCallVM* in_self, DClong l)
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189 {
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190 /* promote to longlong */
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191 dcArgLongLong(in_self, (DClonglong) l );
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192 }
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193
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194
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195 static void dc_callvm_argPointer_ppc64(DCCallVM* in_self, DCpointer p)
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196 {
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197 /* promote to longlong */
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198 dcArgLongLong(in_self, *(DClonglong *) &p );
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199 }
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200
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201
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202 void dc_callvm_call_ppc64(DCCallVM* in_self, DCpointer target)
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203 {
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204 DCCallVM_ppc64* self = (DCCallVM_ppc64*) in_self;
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205 int size = dcVecSize(&self->mVecHead);
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206
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207 if (size < 64) {
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208 dcVecSkip(&self->mVecHead, 64-size);
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209 }
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210
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211 dcCall_ppc64( target, &self->mRegData, dcVecSize(&self->mVecHead) , dcVecData(&self->mVecHead));
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212 }
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213
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7
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214 void dc_callvm_call_ppc64_syscall(DCCallVM* in_self, DCpointer target)
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215 {
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216 DCCallVM_ppc64* self = (DCCallVM_ppc64*) in_self;
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217 dcCall_ppc64_syscall( target, &self->mRegData, dcVecSize(&self->mVecHead) , dcVecData(&self->mVecHead));
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218 }
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219
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220 void dc_callvm_mode_ppc64(DCCallVM* in_self, DCint mode);
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221
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222 DCCallVM_vt gVT_ppc64 =
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223 {
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224 &dc_callvm_free_ppc64
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225 , &dc_callvm_reset_ppc64
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226 , &dc_callvm_mode_ppc64
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227 , &dc_callvm_argBool_ppc64
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228 , &dc_callvm_argChar_ppc64
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229 , &dc_callvm_argShort_ppc64
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230 , &dc_callvm_argInt_ppc64
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231 , &dc_callvm_argLong_ppc64
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232 , &dc_callvm_argLongLong_ppc64
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233 , &dc_callvm_argFloat_ppc64
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234 , &dc_callvm_argDouble_ppc64
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235 , &dc_callvm_argPointer_ppc64
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236 , NULL /* argStruct */
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237 , (DCvoidvmfunc*) &dc_callvm_call_ppc64
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238 , (DCboolvmfunc*) &dc_callvm_call_ppc64
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239 , (DCcharvmfunc*) &dc_callvm_call_ppc64
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240 , (DCshortvmfunc*) &dc_callvm_call_ppc64
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241 , (DCintvmfunc*) &dc_callvm_call_ppc64
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242 , (DClongvmfunc*) &dc_callvm_call_ppc64
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243 , (DClonglongvmfunc*) &dc_callvm_call_ppc64
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244 , (DCfloatvmfunc*) &dc_callvm_call_ppc64
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245 , (DCdoublevmfunc*) &dc_callvm_call_ppc64
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246 , (DCpointervmfunc*) &dc_callvm_call_ppc64
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247 , NULL /* callStruct */
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248 };
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249
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250 #if DC__ABI_PPC64_ELF_V == 2
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251 DCCallVM_vt gVT_ppc64_ellipsis =
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252 {
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253 &dc_callvm_free_ppc64
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254 , &dc_callvm_reset_ppc64
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255 , &dc_callvm_mode_ppc64
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256 , &dc_callvm_argBool_ppc64
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257 , &dc_callvm_argChar_ppc64
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258 , &dc_callvm_argShort_ppc64
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259 , &dc_callvm_argInt_ppc64
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260 , &dc_callvm_argLong_ppc64
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261 , &dc_callvm_argLongLong_ppc64_ellipsis
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262 , &dc_callvm_argFloat_ppc64
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263 , &dc_callvm_argDouble_ppc64_ellipsis
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264 , &dc_callvm_argPointer_ppc64
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265 , NULL /* argStruct */
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266 , (DCvoidvmfunc*) &dc_callvm_call_ppc64
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267 , (DCboolvmfunc*) &dc_callvm_call_ppc64
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268 , (DCcharvmfunc*) &dc_callvm_call_ppc64
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269 , (DCshortvmfunc*) &dc_callvm_call_ppc64
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270 , (DCintvmfunc*) &dc_callvm_call_ppc64
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271 , (DClongvmfunc*) &dc_callvm_call_ppc64
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272 , (DClonglongvmfunc*) &dc_callvm_call_ppc64
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273 , (DCfloatvmfunc*) &dc_callvm_call_ppc64
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274 , (DCdoublevmfunc*) &dc_callvm_call_ppc64
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275 , (DCpointervmfunc*) &dc_callvm_call_ppc64
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276 , NULL /* callStruct */
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277 };
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278 #endif
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279
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7
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280 DCCallVM_vt gVT_ppc64_syscall =
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281 {
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282 &dc_callvm_free_ppc64
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283 , &dc_callvm_reset_ppc64
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284 , &dc_callvm_mode_ppc64
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285 , &dc_callvm_argBool_ppc64
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286 , &dc_callvm_argChar_ppc64
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287 , &dc_callvm_argShort_ppc64
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288 , &dc_callvm_argInt_ppc64
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289 , &dc_callvm_argLong_ppc64
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290 , &dc_callvm_argLongLong_ppc64
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291 , &dc_callvm_argFloat_ppc64
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292 , &dc_callvm_argDouble_ppc64
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293 , &dc_callvm_argPointer_ppc64
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294 , NULL /* argStruct */
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295 , (DCvoidvmfunc*) &dc_callvm_call_ppc64_syscall
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296 , (DCboolvmfunc*) &dc_callvm_call_ppc64_syscall
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297 , (DCcharvmfunc*) &dc_callvm_call_ppc64_syscall
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298 , (DCshortvmfunc*) &dc_callvm_call_ppc64_syscall
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299 , (DCintvmfunc*) &dc_callvm_call_ppc64_syscall
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300 , (DClongvmfunc*) &dc_callvm_call_ppc64_syscall
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301 , (DClonglongvmfunc*) &dc_callvm_call_ppc64_syscall
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302 , (DCfloatvmfunc*) &dc_callvm_call_ppc64_syscall
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303 , (DCdoublevmfunc*) &dc_callvm_call_ppc64_syscall
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304 , (DCpointervmfunc*) &dc_callvm_call_ppc64_syscall
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305 , NULL /* callStruct */
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306 };
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307
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0
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308 void dc_callvm_mode_ppc64(DCCallVM* in_self, DCint mode)
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309 {
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310 DCCallVM_ppc64* self = (DCCallVM_ppc64*) in_self;
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311 DCCallVM_vt* vt;
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312 switch(mode) {
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313
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314 case DC_CALL_C_PPC64:
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315 case DC_CALL_C_DEFAULT:
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316 case DC_CALL_C_ELLIPSIS:
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317 #if DC__ABI_PPC64_ELF_V == 2
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318 vt = &gVT_ppc64;
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319 break;
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320 case DC_CALL_C_ELLIPSIS_VARARGS:
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321 vt = &gVT_ppc64_ellipsis;
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322 break;
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323 #else
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324 case DC_CALL_C_ELLIPSIS_VARARGS:
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325 vt = &gVT_ppc64;
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326 break;
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327 #endif
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328
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7
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329 case DC_CALL_SYS_DEFAULT:
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330 case DC_CALL_SYS_PPC64:
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331 vt = &gVT_ppc64_syscall;
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332 break;
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333
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0
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334 default:
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335 self->mInterface.mError = DC_ERROR_UNSUPPORTED_MODE;
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336 return;
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337 }
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338
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339 dc_callvm_base_init(&self->mInterface, vt);
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340 }
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341
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342 DCCallVM* dcNewCallVM(DCsize size)
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343 {
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344 DCCallVM_ppc64* self = (DCCallVM_ppc64*)dcAllocMem(sizeof(DCCallVM_ppc64)+size);
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345 dcVecInit(&self->mVecHead, size);
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346 self->mIntRegs = 0;
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347 self->mFloatRegs = 0;
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348 dc_callvm_mode_ppc64( (DCCallVM*) self, DC_CALL_C_DEFAULT );
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349 return (DCCallVM*)self;
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350 }
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351
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