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