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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_ppc32.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) 2007-2015 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
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28 /*
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29
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30 dyncall callvm for ppc32 architectures
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31
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32 SUPPORTED CALLING CONVENTIONS
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33 ppc32/osx
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34 ppc32/linux (sysv abi)
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35 ppc32/syscall
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36
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37 REVISION
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38 2015/01/15 added syscall (tested on Linux)
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39 2009/01/09 added System V ABI support
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40 2007/12/11 initial support for Darwin ABI
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41
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42 */
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43
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44 #include "dyncall_callvm_ppc32.h"
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45 #include "dyncall_call_ppc32.h"
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46 #include "dyncall_alloc.h"
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47 #include "dyncall_macros.h"
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48 #include "dyncall_types.h"
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49 #include "dyncall_utils.h"
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50
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51 /* Support for Mac OS X (Darwin) and Systen V ABI for Power PC 32-bit */
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52
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53 #if defined(DC__OS_Darwin)
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54 #define DC__ABI_Darwin
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55 #elif defined(DC__OS_Linux) || defined(DC__OS_FreeBSD) || defined(DC__OS_OpenBSD) || defined(DC__OS_NetBSD) || defined(DC__OS_DragonFlyBSD) || defined(DC__OS_SunOS)
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56 #define DC__ABI_SysV
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57 #else
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58 #error Unsupported OS for ppc32 architecture.
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59 #endif
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60
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61 static void dc_callvm_free_ppc32(DCCallVM* in_self)
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62 {
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63 dcFreeMem(in_self);
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64 }
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65
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66 static void dc_callvm_reset_ppc32(DCCallVM* in_self)
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67 {
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68 DCCallVM_ppc32* self = (DCCallVM_ppc32*)in_self;
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69 dcVecReset(&self->mVecHead);
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70 self->mIntRegs = 0;
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71 self->mFloatRegs = 0;
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72 }
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73
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74 /* OS X/Darwin: fillup integer register file AND push on stack (for ellipsis) */
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75
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76 static void dc_callvm_argInt_ppc32_darwin(DCCallVM* in_self, DCint i)
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77 {
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78 DCCallVM_ppc32* self = (DCCallVM_ppc32*)in_self;
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79 /* fillup integer register file */
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80 if (self->mIntRegs < 8)
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81 self->mRegData.mIntData[self->mIntRegs++] = i;
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82 /* AND push onto stack */
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83 dcVecAppend(&self->mVecHead,&i,sizeof(DCint));
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84 }
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85
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86 static void dc_callvm_argInt_ppc32_sysv(DCCallVM* in_self, DCint i)
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87 {
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88 DCCallVM_ppc32* self = (DCCallVM_ppc32*)in_self;
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89 /* fillup integer register file */
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90 if (self->mIntRegs < 8)
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91 self->mRegData.mIntData[self->mIntRegs++] = i;
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92 /* OR push onto stack */
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93 else
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94 dcVecAppend(&self->mVecHead,&i,sizeof(DCint));
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95 }
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96
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97 /** floating-point **/
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98
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99 /* double*/
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100
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101 static void dc_callvm_argDouble_ppc32_darwin(DCCallVM* in_self, DCdouble d)
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102 {
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103 DCCallVM_ppc32* self = (DCCallVM_ppc32*)in_self;
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104 if (self->mFloatRegs < 13) {
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105 self->mRegData.mFloatData[self->mFloatRegs++] = d;
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106 /* skip two integer register file entries */
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107 if (self->mIntRegs < 8)
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108 self->mRegData.mIntData[self->mIntRegs++] = ( (DCint*) &d )[0];
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109 if (self->mIntRegs < 8)
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110 self->mRegData.mIntData[self->mIntRegs++] = ( (DCint*) &d )[1];
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111 }
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112 /* push on stack */
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113 dcVecAppend(&self->mVecHead, &d, sizeof(DCdouble));
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114 }
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115
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116 #if 0
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117 static void dc_callvm_argDouble_ppc32_sysv(DCCallVM* in_self, DCdouble d)
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118 {
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119 DCCallVM_ppc32* self = (DCCallVM_ppc32*)in_self;
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120 if (self->mFloatRegs < 8) {
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121 self->mRegData.mFloatData[self->mFloatRegs++] = d;
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122 /* skip two integer register file entries */
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123 if (self->mIntRegs < 8)
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124 self->mRegData.mIntData[self->mIntRegs++] = ( (DCint*) &d )[0];
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125 if (self->mIntRegs < 8)
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126 self->mRegData.mIntData[self->mIntRegs++] = ( (DCint*) &d )[1];
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127 }
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128 /* push on stack */
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129 dcVecAppend(&self->mVecHead, &d, sizeof(DCdouble));
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130 }
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131 #endif
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132 static void dc_callvm_argDouble_ppc32_sysv(DCCallVM* in_self, DCdouble d)
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133 {
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134 DCCallVM_ppc32* self = (DCCallVM_ppc32*)in_self;
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135 if (self->mFloatRegs < 8)
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136 self->mRegData.mFloatData[self->mFloatRegs++] = d;
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137 else /* OR push data on stack */
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138 {
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139 /* align stack to 8 byte boundary */
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140 dcVecResize(&self->mVecHead , ( dcVecSize(&self->mVecHead) + 7UL ) & -8UL );
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141 /* AND push data */
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142 dcVecAppend(&self->mVecHead,(DCpointer) &d,sizeof(DCdouble));
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143 }
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144 }
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145
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146 /* Floating-point */
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147
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148
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149 /* darwin:
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150 * - skip one integer register file entry (write in - for ellipsis calls)
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151 * sysv:
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152 * -
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153 */
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154
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155 static void dc_callvm_argFloat_ppc32_darwin(DCCallVM* in_self, DCfloat f)
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156 {
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157 DCCallVM_ppc32* self = (DCCallVM_ppc32*)in_self;
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158 if (self->mFloatRegs < 13) {
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159 self->mRegData.mFloatData[self->mFloatRegs++] = (DCdouble) (f);
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160 }
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161
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162 /* AND skip one integer register file entry (write in - for ellipsis calls) */
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163
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164 if (self->mIntRegs < 8)
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165 self->mRegData.mIntData[self->mIntRegs++] = *( (DCint*) &f );
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166
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167 /* AND push on stack */
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168
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169 dcVecAppend(&self->mVecHead, &f, sizeof(DCfloat));
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170 }
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171
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172 static void dc_callvm_argFloat_ppc32_sysv(DCCallVM* in_self, DCfloat f)
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173 {
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174 DCCallVM_ppc32* self = (DCCallVM_ppc32*)in_self;
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175
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176 /* Put as float register (casted to double) */
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177
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178 if (self->mFloatRegs < 8)
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179 self->mRegData.mFloatData[self->mFloatRegs++] = (DCdouble) (f);
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180
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181 else /* OR put float on stack */
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182 dcVecAppend(&self->mVecHead, &f, sizeof(DCfloat));
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183 }
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184
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185 /* long long integer */
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186
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187 static void dc_callvm_argLongLong_ppc32_darwin(DCCallVM* in_self, DClonglong L)
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188 {
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189 DCint* p = (DCint*) &L;
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190 dcArgInt(in_self, p[0]);
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191 dcArgInt(in_self, p[1]);
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192 }
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193
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194 static void dc_callvm_argLongLong_ppc32_sysv(DCCallVM* in_self, DClonglong L)
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195 {
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196 DCint* p = (DCint*) &L;
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197 DCCallVM_ppc32* self = (DCCallVM_ppc32*)in_self;
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198 /* fillup integer register file */
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199 if (self->mIntRegs < 7)
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200 {
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201 /* next free integer register is even (r0, r2, r3) ? */
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202 /* if not, skip one integer */
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203 if (self->mIntRegs & 1) self->mIntRegs++;
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204
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205 self->mRegData.mIntData[self->mIntRegs++] = p[0];
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206 self->mRegData.mIntData[self->mIntRegs++] = p[1];
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207 }
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208 /* OR push onto stack */
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209 else
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210 {
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211 /* in case, mIntRegs == 7, set it to 8 */
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212 self->mIntRegs = 8;
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213 /* align stack to 8 byte boundary */
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214 dcVecResize(&self->mVecHead , ( dcVecSize(&self->mVecHead) + 7 ) & (-8UL) );
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215 /* push data */
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216 dcVecAppend(&self->mVecHead,&L,sizeof(DClonglong));
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217 }
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218 }
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219
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220
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221 static void dc_callvm_argBool_ppc32(DCCallVM* in_self, DCbool x)
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222 {
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223 /* promote to integer */
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224 dcArgInt(in_self, (x == 0) ? DC_FALSE : DC_TRUE );
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225 }
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226
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227
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228 static void dc_callvm_argChar_ppc32(DCCallVM* in_self, DCchar ch)
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229 {
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230 /* promote to integer */
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231 dcArgInt(in_self, (DCint) ch );
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232 }
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233
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234
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235 static void dc_callvm_argShort_ppc32(DCCallVM* in_self, DCshort s)
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236 {
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237 /* promote to integer */
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238 dcArgInt(in_self, (DCint) s );
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239 }
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240
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241
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242 static void dc_callvm_argLong_ppc32(DCCallVM* in_self, DClong l)
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243 {
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244 /* promote to integer */
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245 dcArgInt(in_self, (DCint) l );
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246 }
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247
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248 static void dc_callvm_argPointer_ppc32(DCCallVM* in_self, DCpointer p)
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249 {
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250 /* promote to integer */
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251 dcArgInt(in_self, *(DCint*) &p );
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252 }
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253
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254
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255 void dc_callvm_call_ppc32_darwin(DCCallVM* in_self, DCpointer target)
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256 {
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257 DCCallVM_ppc32* self = (DCCallVM_ppc32*)in_self;
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258 dcCall_ppc32_darwin(
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259 target,
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260 &self->mRegData,
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261 DC_MAX(dcVecSize(&self->mVecHead), 8*4),
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262 dcVecData(&self->mVecHead)
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263 );
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264 }
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265
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266 void dc_callvm_call_ppc32_sysv(DCCallVM* in_self, DCpointer target)
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267 {
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268 DCCallVM_ppc32* self = (DCCallVM_ppc32*) in_self;
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269 dcCall_ppc32_sysv( target, &self->mRegData, dcVecSize(&self->mVecHead) , dcVecData(&self->mVecHead));
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270 }
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271
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272 void dc_callvm_call_ppc32_syscall(DCCallVM* in_self, DCpointer target)
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273 {
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274 DCCallVM_ppc32* self = (DCCallVM_ppc32*) in_self;
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275 dcCall_ppc32_syscall( target, &self->mRegData, dcVecSize(&self->mVecHead) , dcVecData(&self->mVecHead));
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276 }
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277
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278 void dc_callvm_mode_ppc32(DCCallVM* in_self, DCint mode);
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279
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280 DCCallVM_vt gVT_ppc32_darwin =
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281 {
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282 &dc_callvm_free_ppc32
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283 , &dc_callvm_reset_ppc32
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284 , &dc_callvm_mode_ppc32
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285 , &dc_callvm_argBool_ppc32
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286 , &dc_callvm_argChar_ppc32
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287 , &dc_callvm_argShort_ppc32
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288 , &dc_callvm_argInt_ppc32_darwin
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289 , &dc_callvm_argLong_ppc32
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290 , &dc_callvm_argLongLong_ppc32_darwin
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291 , &dc_callvm_argFloat_ppc32_darwin
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292 , &dc_callvm_argDouble_ppc32_darwin
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293 , &dc_callvm_argPointer_ppc32
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294 , NULL /* argStruct */
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295 , (DCvoidvmfunc*) &dc_callvm_call_ppc32_darwin
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296 , (DCboolvmfunc*) &dc_callvm_call_ppc32_darwin
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297 , (DCcharvmfunc*) &dc_callvm_call_ppc32_darwin
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298 , (DCshortvmfunc*) &dc_callvm_call_ppc32_darwin
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299 , (DCintvmfunc*) &dc_callvm_call_ppc32_darwin
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300 , (DClongvmfunc*) &dc_callvm_call_ppc32_darwin
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301 , (DClonglongvmfunc*) &dc_callvm_call_ppc32_darwin
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302 , (DCfloatvmfunc*) &dc_callvm_call_ppc32_darwin
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303 , (DCdoublevmfunc*) &dc_callvm_call_ppc32_darwin
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304 , (DCpointervmfunc*) &dc_callvm_call_ppc32_darwin
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305 , NULL /* callStruct */
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306 };
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307
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308 DCCallVM_vt gVT_ppc32_sysv =
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309 {
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310 &dc_callvm_free_ppc32
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311 , &dc_callvm_reset_ppc32
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312 , &dc_callvm_mode_ppc32
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313 , &dc_callvm_argBool_ppc32
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314 , &dc_callvm_argChar_ppc32
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315 , &dc_callvm_argShort_ppc32
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316 , &dc_callvm_argInt_ppc32_sysv
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317 , &dc_callvm_argLong_ppc32
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318 , &dc_callvm_argLongLong_ppc32_sysv
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319 , &dc_callvm_argFloat_ppc32_sysv
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320 , &dc_callvm_argDouble_ppc32_sysv
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321 , &dc_callvm_argPointer_ppc32
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322 , NULL /* argStruct */
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323 , (DCvoidvmfunc*) &dc_callvm_call_ppc32_sysv
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324 , (DCboolvmfunc*) &dc_callvm_call_ppc32_sysv
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325 , (DCcharvmfunc*) &dc_callvm_call_ppc32_sysv
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326 , (DCshortvmfunc*) &dc_callvm_call_ppc32_sysv
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327 , (DCintvmfunc*) &dc_callvm_call_ppc32_sysv
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328 , (DClongvmfunc*) &dc_callvm_call_ppc32_sysv
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329 , (DClonglongvmfunc*) &dc_callvm_call_ppc32_sysv
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330 , (DCfloatvmfunc*) &dc_callvm_call_ppc32_sysv
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331 , (DCdoublevmfunc*) &dc_callvm_call_ppc32_sysv
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332 , (DCpointervmfunc*) &dc_callvm_call_ppc32_sysv
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333 , NULL /* callStruct */
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334 };
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335
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336 DCCallVM_vt gVT_ppc32_syscall =
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337 {
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338 &dc_callvm_free_ppc32
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339 , &dc_callvm_reset_ppc32
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340 , &dc_callvm_mode_ppc32
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341 , &dc_callvm_argBool_ppc32
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342 , &dc_callvm_argChar_ppc32
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343 , &dc_callvm_argShort_ppc32
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344 , &dc_callvm_argInt_ppc32_sysv
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345 , &dc_callvm_argLong_ppc32
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346 , &dc_callvm_argLongLong_ppc32_sysv
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347 , &dc_callvm_argFloat_ppc32_sysv
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348 , &dc_callvm_argDouble_ppc32_sysv
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349 , &dc_callvm_argPointer_ppc32
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350 , NULL /* argStruct */
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351 , (DCvoidvmfunc*) &dc_callvm_call_ppc32_syscall
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352 , (DCboolvmfunc*) &dc_callvm_call_ppc32_syscall
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353 , (DCcharvmfunc*) &dc_callvm_call_ppc32_syscall
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354 , (DCshortvmfunc*) &dc_callvm_call_ppc32_syscall
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355 , (DCintvmfunc*) &dc_callvm_call_ppc32_syscall
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356 , (DClongvmfunc*) &dc_callvm_call_ppc32_syscall
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357 , (DClonglongvmfunc*) &dc_callvm_call_ppc32_syscall
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358 , (DCfloatvmfunc*) &dc_callvm_call_ppc32_syscall
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359 , (DCdoublevmfunc*) &dc_callvm_call_ppc32_syscall
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360 , (DCpointervmfunc*) &dc_callvm_call_ppc32_syscall
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361 , NULL /* callStruct */
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362 };
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363
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364
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365 void dc_callvm_mode_ppc32(DCCallVM* in_self, DCint mode)
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366 {
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367 DCCallVM_ppc32* self = (DCCallVM_ppc32*) in_self;
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368 DCCallVM_vt* vt;
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369 switch(mode) {
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370
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371 case DC_CALL_C_PPC32_OSX:
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372
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373 #if defined(DC__ABI_Darwin)
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374 case DC_CALL_C_DEFAULT:
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375 case DC_CALL_C_ELLIPSIS:
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376 case DC_CALL_C_ELLIPSIS_VARARGS:
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377 #endif
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378
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379 vt = &gVT_ppc32_darwin;
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380 break;
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381
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382 case DC_CALL_C_PPC32_SYSV:
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383
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384 #if defined(DC__ABI_SysV)
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385 case DC_CALL_C_DEFAULT:
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386 case DC_CALL_C_ELLIPSIS:
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387 case DC_CALL_C_ELLIPSIS_VARARGS:
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388 #endif
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389
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390 vt = &gVT_ppc32_sysv;
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391 break;
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392
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393 case DC_CALL_SYS_DEFAULT:
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394 case DC_CALL_SYS_PPC32:
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395 vt = &gVT_ppc32_syscall;
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396 break;
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397
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398 default:
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399 self->mInterface.mError = DC_ERROR_UNSUPPORTED_MODE;
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400 return;
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401 }
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402
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403 dc_callvm_base_init(&self->mInterface, vt);
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404 }
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405
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406 DCCallVM* dcNewCallVM(DCsize size)
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407 {
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408 DCCallVM_ppc32* self = (DCCallVM_ppc32*)dcAllocMem(sizeof(DCCallVM_ppc32)+size);
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409 dcVecInit(&self->mVecHead, size);
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410 self->mIntRegs = 0;
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411 self->mFloatRegs = 0;
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412 dc_callvm_mode_ppc32( (DCCallVM*) self, DC_CALL_C_DEFAULT );
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413 return (DCCallVM*)self;
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414 }
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415
|
