1 | /*
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2 | ** dump.c - mruby binary dumper (mrbc binary format)
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3 | **
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4 | ** See Copyright Notice in mruby.h
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5 | */
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6 |
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7 | #include <string.h>
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8 | #include <limits.h>
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9 | #include <math.h>
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10 | #include <mruby/dump.h>
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11 | #include <mruby/string.h>
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12 | #include <mruby/irep.h>
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13 | #include <mruby/numeric.h>
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14 | #include <mruby/debug.h>
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15 |
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16 | #define FLAG_BYTEORDER_NATIVE 2
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17 | #define FLAG_BYTEORDER_NONATIVE 0
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18 |
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19 | #ifndef MRB_WITHOUT_FLOAT
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20 | #ifdef MRB_USE_FLOAT
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21 | #define MRB_FLOAT_FMT "%.9g"
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22 | #else
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23 | #define MRB_FLOAT_FMT "%.17g"
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24 | #endif
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25 | #endif
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26 |
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27 | static size_t get_irep_record_size_1(mrb_state *mrb, mrb_irep *irep);
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28 |
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29 | #if UINT32_MAX > SIZE_MAX
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30 | # error This code cannot be built on your environment.
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31 | #endif
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32 |
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33 | static size_t
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34 | write_padding(uint8_t *buf)
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35 | {
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36 | const size_t align = MRB_DUMP_ALIGNMENT;
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37 | size_t pad_len = -(intptr_t)buf & (align-1);
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38 | if (pad_len > 0) {
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39 | memset(buf, 0, pad_len);
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40 | }
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41 | return pad_len;
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42 | }
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43 |
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44 | static size_t
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45 | get_irep_header_size(mrb_state *mrb)
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46 | {
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47 | size_t size = 0;
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48 |
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49 | size += sizeof(uint32_t) * 1;
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50 | size += sizeof(uint16_t) * 3;
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51 |
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52 | return size;
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53 | }
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54 |
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55 | static ptrdiff_t
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56 | write_irep_header(mrb_state *mrb, mrb_irep *irep, uint8_t *buf)
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57 | {
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58 | uint8_t *cur = buf;
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59 |
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60 | cur += uint32_to_bin((uint32_t)get_irep_record_size_1(mrb, irep), cur); /* record size */
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61 | cur += uint16_to_bin((uint16_t)irep->nlocals, cur); /* number of local variable */
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62 | cur += uint16_to_bin((uint16_t)irep->nregs, cur); /* number of register variable */
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63 | cur += uint16_to_bin((uint16_t)irep->rlen, cur); /* number of child irep */
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64 |
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65 | return cur - buf;
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66 | }
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67 |
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68 |
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69 | static size_t
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70 | get_iseq_block_size(mrb_state *mrb, mrb_irep *irep)
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71 | {
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72 | size_t size = 0;
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73 |
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74 | size += sizeof(uint32_t); /* ilen */
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75 | size += sizeof(uint32_t); /* max padding */
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76 | size += sizeof(uint32_t) * irep->ilen; /* iseq(n) */
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77 |
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78 | return size;
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79 | }
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80 |
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81 | static ptrdiff_t
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82 | write_iseq_block(mrb_state *mrb, mrb_irep *irep, uint8_t *buf, uint8_t flags)
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83 | {
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84 | uint8_t *cur = buf;
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85 |
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86 | cur += uint32_to_bin(irep->ilen, cur); /* number of opcode */
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87 | cur += write_padding(cur);
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88 | memcpy(cur, irep->iseq, irep->ilen * sizeof(mrb_code));
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89 | cur += irep->ilen * sizeof(mrb_code);
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90 |
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91 | return cur - buf;
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92 | }
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93 |
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94 | #ifndef MRB_WITHOUT_FLOAT
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95 | static mrb_value
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96 | float_to_str(mrb_state *mrb, mrb_value flt)
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97 | {
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98 | mrb_float f = mrb_float(flt);
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99 |
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100 | if (isinf(f)) {
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101 | return f < 0 ? mrb_str_new_lit(mrb, "I") : mrb_str_new_lit(mrb, "i");
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102 | }
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103 | return mrb_float_to_str(mrb, flt, MRB_FLOAT_FMT);
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104 | }
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105 | #endif
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106 |
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107 | static size_t
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108 | get_pool_block_size(mrb_state *mrb, mrb_irep *irep)
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109 | {
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110 | int pool_no;
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111 | size_t size = 0;
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112 | mrb_value str;
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113 |
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114 | size += sizeof(uint32_t); /* plen */
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115 | size += irep->plen * (sizeof(uint8_t) + sizeof(uint16_t)); /* len(n) */
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116 |
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117 | for (pool_no = 0; pool_no < irep->plen; pool_no++) {
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118 | int ai = mrb_gc_arena_save(mrb);
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119 |
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120 | switch (mrb_type(irep->pool[pool_no])) {
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121 | case MRB_TT_FIXNUM:
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122 | str = mrb_fixnum_to_str(mrb, irep->pool[pool_no], 10);
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123 | {
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124 | mrb_int len = RSTRING_LEN(str);
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125 | mrb_assert_int_fit(mrb_int, len, size_t, SIZE_MAX);
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126 | size += (size_t)len;
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127 | }
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128 | break;
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129 |
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130 | #ifndef MRB_WITHOUT_FLOAT
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131 | case MRB_TT_FLOAT:
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132 | str = float_to_str(mrb, irep->pool[pool_no]);
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133 | {
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134 | mrb_int len = RSTRING_LEN(str);
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135 | mrb_assert_int_fit(mrb_int, len, size_t, SIZE_MAX);
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136 | size += (size_t)len;
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137 | }
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138 | break;
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139 | #endif
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140 |
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141 | case MRB_TT_STRING:
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142 | {
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143 | mrb_int len = RSTRING_LEN(irep->pool[pool_no]);
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144 | mrb_assert_int_fit(mrb_int, len, size_t, SIZE_MAX);
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145 | size += (size_t)len;
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146 | }
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147 | break;
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148 |
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149 | default:
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150 | break;
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151 | }
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152 | mrb_gc_arena_restore(mrb, ai);
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153 | }
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154 |
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155 | return size;
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156 | }
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157 |
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158 | static ptrdiff_t
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159 | write_pool_block(mrb_state *mrb, mrb_irep *irep, uint8_t *buf)
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160 | {
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161 | int pool_no;
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162 | uint8_t *cur = buf;
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163 | uint16_t len;
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164 | mrb_value str;
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165 | const char *char_ptr;
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166 |
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167 | cur += uint32_to_bin(irep->plen, cur); /* number of pool */
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168 |
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169 | for (pool_no = 0; pool_no < irep->plen; pool_no++) {
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170 | int ai = mrb_gc_arena_save(mrb);
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171 |
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172 | switch (mrb_type(irep->pool[pool_no])) {
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173 | case MRB_TT_FIXNUM:
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174 | cur += uint8_to_bin(IREP_TT_FIXNUM, cur); /* data type */
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175 | str = mrb_fixnum_to_str(mrb, irep->pool[pool_no], 10);
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176 | break;
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177 |
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178 | #ifndef MRB_WITHOUT_FLOAT
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179 | case MRB_TT_FLOAT:
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180 | cur += uint8_to_bin(IREP_TT_FLOAT, cur); /* data type */
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181 | str = float_to_str(mrb, irep->pool[pool_no]);
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182 | break;
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183 | #endif
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184 |
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185 | case MRB_TT_STRING:
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186 | cur += uint8_to_bin(IREP_TT_STRING, cur); /* data type */
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187 | str = irep->pool[pool_no];
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188 | break;
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189 |
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190 | default:
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191 | continue;
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192 | }
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193 |
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194 | char_ptr = RSTRING_PTR(str);
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195 | {
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196 | mrb_int tlen = RSTRING_LEN(str);
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197 | mrb_assert_int_fit(mrb_int, tlen, uint16_t, UINT16_MAX);
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198 | len = (uint16_t)tlen;
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199 | }
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200 |
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201 | cur += uint16_to_bin(len, cur); /* data length */
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202 | memcpy(cur, char_ptr, (size_t)len);
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203 | cur += len;
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204 |
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205 | mrb_gc_arena_restore(mrb, ai);
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206 | }
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207 |
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208 | return cur - buf;
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209 | }
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210 |
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211 |
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212 | static size_t
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213 | get_syms_block_size(mrb_state *mrb, mrb_irep *irep)
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214 | {
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215 | size_t size = 0;
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216 | int sym_no;
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217 | mrb_int len;
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218 |
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219 | size += sizeof(uint32_t); /* slen */
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220 | for (sym_no = 0; sym_no < irep->slen; sym_no++) {
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221 | size += sizeof(uint16_t); /* snl(n) */
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222 | if (irep->syms[sym_no] != 0) {
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223 | mrb_sym_name_len(mrb, irep->syms[sym_no], &len);
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224 | size += len + 1; /* sn(n) + null char */
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225 | }
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226 | }
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227 |
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228 | return size;
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229 | }
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230 |
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231 | static ptrdiff_t
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232 | write_syms_block(mrb_state *mrb, mrb_irep *irep, uint8_t *buf)
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233 | {
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234 | int sym_no;
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235 | uint8_t *cur = buf;
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236 | const char *name;
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237 |
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238 | cur += uint32_to_bin(irep->slen, cur); /* number of symbol */
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239 |
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240 | for (sym_no = 0; sym_no < irep->slen; sym_no++) {
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241 | if (irep->syms[sym_no] != 0) {
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242 | mrb_int len;
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243 |
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244 | name = mrb_sym_name_len(mrb, irep->syms[sym_no], &len);
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245 |
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246 | mrb_assert_int_fit(mrb_int, len, uint16_t, UINT16_MAX);
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247 | cur += uint16_to_bin((uint16_t)len, cur); /* length of symbol name */
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248 | memcpy(cur, name, len); /* symbol name */
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249 | cur += (uint16_t)len;
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250 | *cur++ = '\0';
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251 | }
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252 | else {
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253 | cur += uint16_to_bin(MRB_DUMP_NULL_SYM_LEN, cur); /* length of symbol name */
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254 | }
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255 | }
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256 |
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257 | return cur - buf;
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258 | }
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259 |
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260 | static size_t
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261 | get_irep_record_size_1(mrb_state *mrb, mrb_irep *irep)
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262 | {
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263 | size_t size = 0;
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264 |
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265 | size += get_irep_header_size(mrb);
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266 | size += get_iseq_block_size(mrb, irep);
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267 | size += get_pool_block_size(mrb, irep);
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268 | size += get_syms_block_size(mrb, irep);
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269 | return size;
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270 | }
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271 |
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272 | static size_t
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273 | get_irep_record_size(mrb_state *mrb, mrb_irep *irep)
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274 | {
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275 | size_t size = 0;
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276 | int irep_no;
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277 |
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278 | size = get_irep_record_size_1(mrb, irep);
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279 | for (irep_no = 0; irep_no < irep->rlen; irep_no++) {
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280 | size += get_irep_record_size(mrb, irep->reps[irep_no]);
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281 | }
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282 | return size;
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283 | }
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284 |
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285 | static int
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286 | write_irep_record(mrb_state *mrb, mrb_irep *irep, uint8_t *bin, size_t *irep_record_size, uint8_t flags)
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287 | {
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288 | int i;
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289 | uint8_t *src = bin;
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290 |
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291 | if (irep == NULL) {
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292 | return MRB_DUMP_INVALID_IREP;
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293 | }
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294 |
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295 | *irep_record_size = get_irep_record_size_1(mrb, irep);
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296 | if (*irep_record_size == 0) {
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297 | return MRB_DUMP_GENERAL_FAILURE;
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298 | }
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299 |
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300 | bin += write_irep_header(mrb, irep, bin);
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301 | bin += write_iseq_block(mrb, irep, bin, flags);
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302 | bin += write_pool_block(mrb, irep, bin);
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303 | bin += write_syms_block(mrb, irep, bin);
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304 |
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305 | for (i = 0; i < irep->rlen; i++) {
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306 | int result;
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307 | size_t rsize;
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308 |
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309 | result = write_irep_record(mrb, irep->reps[i], bin, &rsize, flags);
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310 | if (result != MRB_DUMP_OK) {
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311 | return result;
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312 | }
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313 | bin += rsize;
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314 | }
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315 | *irep_record_size = bin - src;
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316 | return MRB_DUMP_OK;
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317 | }
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318 |
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319 | static uint32_t
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320 | write_footer(mrb_state *mrb, uint8_t *bin)
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321 | {
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322 | struct rite_binary_footer footer;
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323 |
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324 | memcpy(footer.section_ident, RITE_BINARY_EOF, sizeof(footer.section_ident));
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325 | uint32_to_bin(sizeof(struct rite_binary_footer), footer.section_size);
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326 | memcpy(bin, &footer, sizeof(struct rite_binary_footer));
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327 |
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328 | return sizeof(struct rite_binary_footer);
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329 | }
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330 |
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331 |
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332 | static int
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333 | write_section_irep_header(mrb_state *mrb, size_t section_size, uint8_t *bin)
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334 | {
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335 | struct rite_section_irep_header *header = (struct rite_section_irep_header*)bin;
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336 |
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337 | memcpy(header->section_ident, RITE_SECTION_IREP_IDENT, sizeof(header->section_ident));
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338 |
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339 | mrb_assert_int_fit(size_t, section_size, uint32_t, UINT32_MAX);
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340 | uint32_to_bin((uint32_t)section_size, header->section_size);
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341 | memcpy(header->rite_version, RITE_VM_VER, sizeof(header->rite_version));
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342 |
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343 | return MRB_DUMP_OK;
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344 | }
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345 |
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346 | static int
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347 | write_section_irep(mrb_state *mrb, mrb_irep *irep, uint8_t *bin, size_t *len_p, uint8_t flags)
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348 | {
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349 | int result;
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350 | size_t rsize = 0;
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351 | uint8_t *cur = bin;
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352 |
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353 | if (mrb == NULL || bin == NULL) {
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354 | return MRB_DUMP_INVALID_ARGUMENT;
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355 | }
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356 |
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357 | cur += sizeof(struct rite_section_irep_header);
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358 |
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359 | result = write_irep_record(mrb, irep, cur, &rsize, flags);
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360 | if (result != MRB_DUMP_OK) {
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361 | return result;
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362 | }
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363 | *len_p = cur - bin + rsize;
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364 | write_section_irep_header(mrb, *len_p, bin);
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365 |
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366 | return MRB_DUMP_OK;
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367 | }
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368 |
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369 | static size_t
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370 | get_debug_record_size(mrb_state *mrb, mrb_irep *irep)
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371 | {
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372 | size_t ret = 0;
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373 | uint16_t f_idx;
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374 | int i;
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375 |
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376 | ret += sizeof(uint32_t); /* record size */
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377 | ret += sizeof(uint16_t); /* file count */
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378 |
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379 | for (f_idx = 0; f_idx < irep->debug_info->flen; ++f_idx) {
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380 | mrb_irep_debug_info_file const* file = irep->debug_info->files[f_idx];
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381 |
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382 | ret += sizeof(uint32_t); /* position */
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383 | ret += sizeof(uint16_t); /* filename index */
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384 |
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385 | /* lines */
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386 | ret += sizeof(uint32_t); /* entry count */
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387 | ret += sizeof(uint8_t); /* line type */
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388 | switch (file->line_type) {
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389 | case mrb_debug_line_ary:
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390 | ret += sizeof(uint16_t) * (size_t)(file->line_entry_count);
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391 | break;
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392 |
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393 | case mrb_debug_line_flat_map:
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394 | ret += (sizeof(uint32_t) + sizeof(uint16_t)) * (size_t)(file->line_entry_count);
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395 | break;
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396 |
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397 | default: mrb_assert(0); break;
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398 | }
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399 | }
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400 | for (i=0; i<irep->rlen; i++) {
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401 | ret += get_debug_record_size(mrb, irep->reps[i]);
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402 | }
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403 |
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404 | return ret;
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405 | }
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406 |
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407 | static int
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408 | find_filename_index(const mrb_sym *ary, int ary_len, mrb_sym s)
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409 | {
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410 | int i;
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411 |
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412 | for (i = 0; i < ary_len; ++i) {
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413 | if (ary[i] == s) { return i; }
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414 | }
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415 | return -1;
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416 | }
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417 |
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418 | static size_t
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419 | get_filename_table_size(mrb_state *mrb, mrb_irep *irep, mrb_sym **fp, uint16_t *lp)
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420 | {
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421 | mrb_sym *filenames = *fp;
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422 | size_t size = 0;
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423 | mrb_irep_debug_info *di = irep->debug_info;
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424 | int i;
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425 |
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426 | mrb_assert(lp);
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427 | for (i = 0; i < di->flen; ++i) {
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428 | mrb_irep_debug_info_file *file;
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429 | mrb_int filename_len;
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430 |
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431 | file = di->files[i];
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432 | if (find_filename_index(filenames, *lp, file->filename_sym) == -1) {
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433 | /* register filename */
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434 | *lp += 1;
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435 | *fp = filenames = (mrb_sym *)mrb_realloc(mrb, filenames, sizeof(mrb_sym) * (*lp));
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436 | filenames[*lp - 1] = file->filename_sym;
|
---|
437 |
|
---|
438 | /* filename */
|
---|
439 | mrb_sym_name_len(mrb, file->filename_sym, &filename_len);
|
---|
440 | size += sizeof(uint16_t) + (size_t)filename_len;
|
---|
441 | }
|
---|
442 | }
|
---|
443 | for (i=0; i<irep->rlen; i++) {
|
---|
444 | size += get_filename_table_size(mrb, irep->reps[i], fp, lp);
|
---|
445 | }
|
---|
446 | return size;
|
---|
447 | }
|
---|
448 |
|
---|
449 | static size_t
|
---|
450 | write_debug_record_1(mrb_state *mrb, mrb_irep *irep, uint8_t *bin, mrb_sym const* filenames, uint16_t filenames_len)
|
---|
451 | {
|
---|
452 | uint8_t *cur;
|
---|
453 | uint16_t f_idx;
|
---|
454 | ptrdiff_t ret;
|
---|
455 |
|
---|
456 | cur = bin + sizeof(uint32_t); /* skip record size */
|
---|
457 | cur += uint16_to_bin(irep->debug_info->flen, cur); /* file count */
|
---|
458 |
|
---|
459 | for (f_idx = 0; f_idx < irep->debug_info->flen; ++f_idx) {
|
---|
460 | int filename_idx;
|
---|
461 | const mrb_irep_debug_info_file *file = irep->debug_info->files[f_idx];
|
---|
462 |
|
---|
463 | /* position */
|
---|
464 | cur += uint32_to_bin(file->start_pos, cur);
|
---|
465 |
|
---|
466 | /* filename index */
|
---|
467 | filename_idx = find_filename_index(filenames, filenames_len,
|
---|
468 | file->filename_sym);
|
---|
469 | mrb_assert_int_fit(int, filename_idx, uint16_t, UINT16_MAX);
|
---|
470 | cur += uint16_to_bin((uint16_t)filename_idx, cur);
|
---|
471 |
|
---|
472 | /* lines */
|
---|
473 | cur += uint32_to_bin(file->line_entry_count, cur);
|
---|
474 | cur += uint8_to_bin(file->line_type, cur);
|
---|
475 | switch (file->line_type) {
|
---|
476 | case mrb_debug_line_ary: {
|
---|
477 | uint32_t l;
|
---|
478 | for (l = 0; l < file->line_entry_count; ++l) {
|
---|
479 | cur += uint16_to_bin(file->lines.ary[l], cur);
|
---|
480 | }
|
---|
481 | } break;
|
---|
482 |
|
---|
483 | case mrb_debug_line_flat_map: {
|
---|
484 | uint32_t line;
|
---|
485 | for (line = 0; line < file->line_entry_count; ++line) {
|
---|
486 | cur += uint32_to_bin(file->lines.flat_map[line].start_pos, cur);
|
---|
487 | cur += uint16_to_bin(file->lines.flat_map[line].line, cur);
|
---|
488 | }
|
---|
489 | } break;
|
---|
490 |
|
---|
491 | default: mrb_assert(0); break;
|
---|
492 | }
|
---|
493 | }
|
---|
494 |
|
---|
495 | ret = cur - bin;
|
---|
496 | mrb_assert_int_fit(ptrdiff_t, ret, uint32_t, UINT32_MAX);
|
---|
497 | uint32_to_bin((uint32_t)ret, bin);
|
---|
498 |
|
---|
499 | mrb_assert_int_fit(ptrdiff_t, ret, size_t, SIZE_MAX);
|
---|
500 | return (size_t)ret;
|
---|
501 | }
|
---|
502 |
|
---|
503 | static size_t
|
---|
504 | write_debug_record(mrb_state *mrb, mrb_irep *irep, uint8_t *bin, mrb_sym const* filenames, uint16_t filenames_len)
|
---|
505 | {
|
---|
506 | size_t size, len;
|
---|
507 | int irep_no;
|
---|
508 |
|
---|
509 | size = len = write_debug_record_1(mrb, irep, bin, filenames, filenames_len);
|
---|
510 | bin += len;
|
---|
511 | for (irep_no = 0; irep_no < irep->rlen; irep_no++) {
|
---|
512 | len = write_debug_record(mrb, irep->reps[irep_no], bin, filenames, filenames_len);
|
---|
513 | bin += len;
|
---|
514 | size += len;
|
---|
515 | }
|
---|
516 |
|
---|
517 | mrb_assert(size == get_debug_record_size(mrb, irep));
|
---|
518 | return size;
|
---|
519 | }
|
---|
520 |
|
---|
521 | static int
|
---|
522 | write_section_debug(mrb_state *mrb, mrb_irep *irep, uint8_t *cur, mrb_sym const *filenames, uint16_t filenames_len)
|
---|
523 | {
|
---|
524 | size_t section_size = 0;
|
---|
525 | const uint8_t *bin = cur;
|
---|
526 | struct rite_section_debug_header *header;
|
---|
527 | size_t dlen;
|
---|
528 | uint16_t i;
|
---|
529 | char const *sym; mrb_int sym_len;
|
---|
530 |
|
---|
531 | if (mrb == NULL || cur == NULL) {
|
---|
532 | return MRB_DUMP_INVALID_ARGUMENT;
|
---|
533 | }
|
---|
534 |
|
---|
535 | header = (struct rite_section_debug_header *)bin;
|
---|
536 | cur += sizeof(struct rite_section_debug_header);
|
---|
537 | section_size += sizeof(struct rite_section_debug_header);
|
---|
538 |
|
---|
539 | /* filename table */
|
---|
540 | cur += uint16_to_bin(filenames_len, cur);
|
---|
541 | section_size += sizeof(uint16_t);
|
---|
542 | for (i = 0; i < filenames_len; ++i) {
|
---|
543 | sym = mrb_sym_name_len(mrb, filenames[i], &sym_len);
|
---|
544 | mrb_assert(sym);
|
---|
545 | cur += uint16_to_bin((uint16_t)sym_len, cur);
|
---|
546 | memcpy(cur, sym, sym_len);
|
---|
547 | cur += sym_len;
|
---|
548 | section_size += sizeof(uint16_t) + sym_len;
|
---|
549 | }
|
---|
550 |
|
---|
551 | /* debug records */
|
---|
552 | dlen = write_debug_record(mrb, irep, cur, filenames, filenames_len);
|
---|
553 | section_size += dlen;
|
---|
554 |
|
---|
555 | memcpy(header->section_ident, RITE_SECTION_DEBUG_IDENT, sizeof(header->section_ident));
|
---|
556 | mrb_assert(section_size <= INT32_MAX);
|
---|
557 | uint32_to_bin((uint32_t)section_size, header->section_size);
|
---|
558 |
|
---|
559 | return MRB_DUMP_OK;
|
---|
560 | }
|
---|
561 |
|
---|
562 | static void
|
---|
563 | create_lv_sym_table(mrb_state *mrb, const mrb_irep *irep, mrb_sym **syms, uint32_t *syms_len)
|
---|
564 | {
|
---|
565 | int i;
|
---|
566 |
|
---|
567 | if (*syms == NULL) {
|
---|
568 | *syms = (mrb_sym*)mrb_malloc(mrb, sizeof(mrb_sym) * 1);
|
---|
569 | }
|
---|
570 |
|
---|
571 | for (i = 0; i + 1 < irep->nlocals; ++i) {
|
---|
572 | mrb_sym const name = irep->lv[i].name;
|
---|
573 | if (name == 0) continue;
|
---|
574 | if (find_filename_index(*syms, *syms_len, name) != -1) continue;
|
---|
575 |
|
---|
576 | ++(*syms_len);
|
---|
577 | *syms = (mrb_sym*)mrb_realloc(mrb, *syms, sizeof(mrb_sym) * (*syms_len));
|
---|
578 | (*syms)[*syms_len - 1] = name;
|
---|
579 | }
|
---|
580 |
|
---|
581 | for (i = 0; i < irep->rlen; ++i) {
|
---|
582 | create_lv_sym_table(mrb, irep->reps[i], syms, syms_len);
|
---|
583 | }
|
---|
584 | }
|
---|
585 |
|
---|
586 | static int
|
---|
587 | write_lv_sym_table(mrb_state *mrb, uint8_t **start, mrb_sym const *syms, uint32_t syms_len)
|
---|
588 | {
|
---|
589 | uint8_t *cur = *start;
|
---|
590 | uint32_t i;
|
---|
591 | const char *str;
|
---|
592 | mrb_int str_len;
|
---|
593 |
|
---|
594 | cur += uint32_to_bin(syms_len, cur);
|
---|
595 |
|
---|
596 | for (i = 0; i < syms_len; ++i) {
|
---|
597 | str = mrb_sym_name_len(mrb, syms[i], &str_len);
|
---|
598 | cur += uint16_to_bin((uint16_t)str_len, cur);
|
---|
599 | memcpy(cur, str, str_len);
|
---|
600 | cur += str_len;
|
---|
601 | }
|
---|
602 |
|
---|
603 | *start = cur;
|
---|
604 |
|
---|
605 | return MRB_DUMP_OK;
|
---|
606 | }
|
---|
607 |
|
---|
608 | static int
|
---|
609 | write_lv_record(mrb_state *mrb, const mrb_irep *irep, uint8_t **start, mrb_sym const *syms, uint32_t syms_len)
|
---|
610 | {
|
---|
611 | uint8_t *cur = *start;
|
---|
612 | int i;
|
---|
613 |
|
---|
614 | for (i = 0; i + 1 < irep->nlocals; ++i) {
|
---|
615 | if (irep->lv[i].name == 0) {
|
---|
616 | cur += uint16_to_bin(RITE_LV_NULL_MARK, cur);
|
---|
617 | cur += uint16_to_bin(0, cur);
|
---|
618 | }
|
---|
619 | else {
|
---|
620 | int const sym_idx = find_filename_index(syms, syms_len, irep->lv[i].name);
|
---|
621 | mrb_assert(sym_idx != -1); /* local variable name must be in syms */
|
---|
622 |
|
---|
623 | cur += uint16_to_bin(sym_idx, cur);
|
---|
624 | cur += uint16_to_bin(irep->lv[i].r, cur);
|
---|
625 | }
|
---|
626 | }
|
---|
627 |
|
---|
628 | for (i = 0; i < irep->rlen; ++i) {
|
---|
629 | write_lv_record(mrb, irep->reps[i], &cur, syms, syms_len);
|
---|
630 | }
|
---|
631 |
|
---|
632 | *start = cur;
|
---|
633 |
|
---|
634 | return MRB_DUMP_OK;
|
---|
635 | }
|
---|
636 |
|
---|
637 | static size_t
|
---|
638 | get_lv_record_size(mrb_state *mrb, mrb_irep *irep)
|
---|
639 | {
|
---|
640 | size_t ret = 0;
|
---|
641 | int i;
|
---|
642 |
|
---|
643 | ret += (sizeof(uint16_t) + sizeof(uint16_t)) * (irep->nlocals - 1);
|
---|
644 |
|
---|
645 | for (i = 0; i < irep->rlen; ++i) {
|
---|
646 | ret += get_lv_record_size(mrb, irep->reps[i]);
|
---|
647 | }
|
---|
648 |
|
---|
649 | return ret;
|
---|
650 | }
|
---|
651 |
|
---|
652 | static size_t
|
---|
653 | get_lv_section_size(mrb_state *mrb, mrb_irep *irep, mrb_sym const *syms, uint32_t syms_len)
|
---|
654 | {
|
---|
655 | size_t ret = 0, i;
|
---|
656 |
|
---|
657 | ret += sizeof(uint32_t); /* syms_len */
|
---|
658 | ret += sizeof(uint16_t) * syms_len; /* symbol name lengths */
|
---|
659 | for (i = 0; i < syms_len; ++i) {
|
---|
660 | mrb_int str_len;
|
---|
661 | mrb_sym_name_len(mrb, syms[i], &str_len);
|
---|
662 | ret += str_len;
|
---|
663 | }
|
---|
664 |
|
---|
665 | ret += get_lv_record_size(mrb, irep);
|
---|
666 |
|
---|
667 | return ret;
|
---|
668 | }
|
---|
669 |
|
---|
670 | static int
|
---|
671 | write_section_lv(mrb_state *mrb, mrb_irep *irep, uint8_t *start, mrb_sym const *syms, uint32_t const syms_len)
|
---|
672 | {
|
---|
673 | uint8_t *cur = start;
|
---|
674 | struct rite_section_lv_header *header;
|
---|
675 | ptrdiff_t diff;
|
---|
676 | int result = MRB_DUMP_OK;
|
---|
677 |
|
---|
678 | if (mrb == NULL || cur == NULL) {
|
---|
679 | return MRB_DUMP_INVALID_ARGUMENT;
|
---|
680 | }
|
---|
681 |
|
---|
682 | header = (struct rite_section_lv_header*)cur;
|
---|
683 | cur += sizeof(struct rite_section_lv_header);
|
---|
684 |
|
---|
685 | result = write_lv_sym_table(mrb, &cur, syms, syms_len);
|
---|
686 | if (result != MRB_DUMP_OK) {
|
---|
687 | goto lv_section_exit;
|
---|
688 | }
|
---|
689 |
|
---|
690 | result = write_lv_record(mrb, irep, &cur, syms, syms_len);
|
---|
691 | if (result != MRB_DUMP_OK) {
|
---|
692 | goto lv_section_exit;
|
---|
693 | }
|
---|
694 |
|
---|
695 | memcpy(header->section_ident, RITE_SECTION_LV_IDENT, sizeof(header->section_ident));
|
---|
696 |
|
---|
697 | diff = cur - start;
|
---|
698 | mrb_assert_int_fit(ptrdiff_t, diff, size_t, SIZE_MAX);
|
---|
699 | uint32_to_bin((uint32_t)diff, header->section_size);
|
---|
700 |
|
---|
701 | lv_section_exit:
|
---|
702 | return result;
|
---|
703 | }
|
---|
704 |
|
---|
705 | static int
|
---|
706 | write_rite_binary_header(mrb_state *mrb, size_t binary_size, uint8_t *bin, uint8_t flags)
|
---|
707 | {
|
---|
708 | struct rite_binary_header *header = (struct rite_binary_header *)bin;
|
---|
709 | uint16_t crc;
|
---|
710 | uint32_t offset;
|
---|
711 |
|
---|
712 | switch (flags & DUMP_ENDIAN_NAT) {
|
---|
713 | endian_big:
|
---|
714 | case DUMP_ENDIAN_BIG:
|
---|
715 | memcpy(header->binary_ident, RITE_BINARY_IDENT, sizeof(header->binary_ident));
|
---|
716 | break;
|
---|
717 | endian_little:
|
---|
718 | case DUMP_ENDIAN_LIL:
|
---|
719 | memcpy(header->binary_ident, RITE_BINARY_IDENT_LIL, sizeof(header->binary_ident));
|
---|
720 | break;
|
---|
721 |
|
---|
722 | case DUMP_ENDIAN_NAT:
|
---|
723 | if (bigendian_p()) goto endian_big;
|
---|
724 | goto endian_little;
|
---|
725 | break;
|
---|
726 | }
|
---|
727 |
|
---|
728 | memcpy(header->binary_version, RITE_BINARY_FORMAT_VER, sizeof(header->binary_version));
|
---|
729 | memcpy(header->compiler_name, RITE_COMPILER_NAME, sizeof(header->compiler_name));
|
---|
730 | memcpy(header->compiler_version, RITE_COMPILER_VERSION, sizeof(header->compiler_version));
|
---|
731 | mrb_assert(binary_size <= UINT32_MAX);
|
---|
732 | uint32_to_bin((uint32_t)binary_size, header->binary_size);
|
---|
733 |
|
---|
734 | offset = (uint32_t)((&(header->binary_crc[0]) - bin) + sizeof(uint16_t));
|
---|
735 | crc = calc_crc_16_ccitt(bin + offset, binary_size - offset, 0);
|
---|
736 | uint16_to_bin(crc, header->binary_crc);
|
---|
737 |
|
---|
738 | return MRB_DUMP_OK;
|
---|
739 | }
|
---|
740 |
|
---|
741 | static mrb_bool
|
---|
742 | debug_info_defined_p(mrb_irep *irep)
|
---|
743 | {
|
---|
744 | int i;
|
---|
745 |
|
---|
746 | if (!irep->debug_info) return FALSE;
|
---|
747 | for (i=0; i<irep->rlen; i++) {
|
---|
748 | if (!debug_info_defined_p(irep->reps[i])) return FALSE;
|
---|
749 | }
|
---|
750 | return TRUE;
|
---|
751 | }
|
---|
752 |
|
---|
753 | static mrb_bool
|
---|
754 | lv_defined_p(mrb_irep *irep)
|
---|
755 | {
|
---|
756 | int i;
|
---|
757 |
|
---|
758 | if (irep->lv) { return TRUE; }
|
---|
759 |
|
---|
760 | for (i = 0; i < irep->rlen; ++i) {
|
---|
761 | if (lv_defined_p(irep->reps[i])) { return TRUE; }
|
---|
762 | }
|
---|
763 |
|
---|
764 | return FALSE;
|
---|
765 | }
|
---|
766 |
|
---|
767 | static uint8_t
|
---|
768 | dump_flags(uint8_t flags, uint8_t native)
|
---|
769 | {
|
---|
770 | if (native == FLAG_BYTEORDER_NATIVE) {
|
---|
771 | if ((flags & DUMP_ENDIAN_NAT) == 0) {
|
---|
772 | return (flags & DUMP_DEBUG_INFO) | DUMP_ENDIAN_NAT;
|
---|
773 | }
|
---|
774 | return flags;
|
---|
775 | }
|
---|
776 | if ((flags & DUMP_ENDIAN_NAT) == 0) {
|
---|
777 | return (flags & DUMP_DEBUG_INFO) | DUMP_ENDIAN_BIG;
|
---|
778 | }
|
---|
779 | return flags;
|
---|
780 | }
|
---|
781 |
|
---|
782 | static int
|
---|
783 | dump_irep(mrb_state *mrb, mrb_irep *irep, uint8_t flags, uint8_t **bin, size_t *bin_size)
|
---|
784 | {
|
---|
785 | int result = MRB_DUMP_GENERAL_FAILURE;
|
---|
786 | size_t malloc_size;
|
---|
787 | size_t section_irep_size;
|
---|
788 | size_t section_lineno_size = 0, section_lv_size = 0;
|
---|
789 | uint8_t *cur = NULL;
|
---|
790 | mrb_bool const debug_info_defined = debug_info_defined_p(irep), lv_defined = lv_defined_p(irep);
|
---|
791 | mrb_sym *lv_syms = NULL; uint32_t lv_syms_len = 0;
|
---|
792 | mrb_sym *filenames = NULL; uint16_t filenames_len = 0;
|
---|
793 |
|
---|
794 | if (mrb == NULL) {
|
---|
795 | *bin = NULL;
|
---|
796 | return MRB_DUMP_GENERAL_FAILURE;
|
---|
797 | }
|
---|
798 |
|
---|
799 | section_irep_size = sizeof(struct rite_section_irep_header);
|
---|
800 | section_irep_size += get_irep_record_size(mrb, irep);
|
---|
801 |
|
---|
802 | /* DEBUG section size */
|
---|
803 | if (flags & DUMP_DEBUG_INFO) {
|
---|
804 | if (debug_info_defined) {
|
---|
805 | section_lineno_size += sizeof(struct rite_section_debug_header);
|
---|
806 | /* filename table */
|
---|
807 | filenames = (mrb_sym*)mrb_malloc(mrb, sizeof(mrb_sym) + 1);
|
---|
808 |
|
---|
809 | /* filename table size */
|
---|
810 | section_lineno_size += sizeof(uint16_t);
|
---|
811 | section_lineno_size += get_filename_table_size(mrb, irep, &filenames, &filenames_len);
|
---|
812 |
|
---|
813 | section_lineno_size += get_debug_record_size(mrb, irep);
|
---|
814 | }
|
---|
815 | }
|
---|
816 |
|
---|
817 | if (lv_defined) {
|
---|
818 | section_lv_size += sizeof(struct rite_section_lv_header);
|
---|
819 | create_lv_sym_table(mrb, irep, &lv_syms, &lv_syms_len);
|
---|
820 | section_lv_size += get_lv_section_size(mrb, irep, lv_syms, lv_syms_len);
|
---|
821 | }
|
---|
822 |
|
---|
823 | malloc_size = sizeof(struct rite_binary_header) +
|
---|
824 | section_irep_size + section_lineno_size + section_lv_size +
|
---|
825 | sizeof(struct rite_binary_footer);
|
---|
826 | cur = *bin = (uint8_t*)mrb_malloc(mrb, malloc_size);
|
---|
827 | cur += sizeof(struct rite_binary_header);
|
---|
828 |
|
---|
829 | result = write_section_irep(mrb, irep, cur, §ion_irep_size, flags);
|
---|
830 | if (result != MRB_DUMP_OK) {
|
---|
831 | goto error_exit;
|
---|
832 | }
|
---|
833 | cur += section_irep_size;
|
---|
834 | *bin_size = sizeof(struct rite_binary_header) +
|
---|
835 | section_irep_size + section_lineno_size + section_lv_size +
|
---|
836 | sizeof(struct rite_binary_footer);
|
---|
837 |
|
---|
838 | /* write DEBUG section */
|
---|
839 | if (flags & DUMP_DEBUG_INFO) {
|
---|
840 | if (debug_info_defined) {
|
---|
841 | result = write_section_debug(mrb, irep, cur, filenames, filenames_len);
|
---|
842 | if (result != MRB_DUMP_OK) {
|
---|
843 | goto error_exit;
|
---|
844 | }
|
---|
845 | }
|
---|
846 | cur += section_lineno_size;
|
---|
847 | }
|
---|
848 |
|
---|
849 | if (lv_defined) {
|
---|
850 | result = write_section_lv(mrb, irep, cur, lv_syms, lv_syms_len);
|
---|
851 | if (result != MRB_DUMP_OK) {
|
---|
852 | goto error_exit;
|
---|
853 | }
|
---|
854 | cur += section_lv_size;
|
---|
855 | }
|
---|
856 |
|
---|
857 | write_footer(mrb, cur);
|
---|
858 | write_rite_binary_header(mrb, *bin_size, *bin, flags);
|
---|
859 |
|
---|
860 | error_exit:
|
---|
861 | if (result != MRB_DUMP_OK) {
|
---|
862 | mrb_free(mrb, *bin);
|
---|
863 | *bin = NULL;
|
---|
864 | }
|
---|
865 | mrb_free(mrb, lv_syms);
|
---|
866 | mrb_free(mrb, filenames);
|
---|
867 | return result;
|
---|
868 | }
|
---|
869 |
|
---|
870 | int
|
---|
871 | mrb_dump_irep(mrb_state *mrb, mrb_irep *irep, uint8_t flags, uint8_t **bin, size_t *bin_size)
|
---|
872 | {
|
---|
873 | return dump_irep(mrb, irep, dump_flags(flags, FLAG_BYTEORDER_NONATIVE), bin, bin_size);
|
---|
874 | }
|
---|
875 |
|
---|
876 | #ifndef MRB_DISABLE_STDIO
|
---|
877 |
|
---|
878 | int
|
---|
879 | mrb_dump_irep_binary(mrb_state *mrb, mrb_irep *irep, uint8_t flags, FILE* fp)
|
---|
880 | {
|
---|
881 | uint8_t *bin = NULL;
|
---|
882 | size_t bin_size = 0;
|
---|
883 | int result;
|
---|
884 |
|
---|
885 | if (fp == NULL) {
|
---|
886 | return MRB_DUMP_INVALID_ARGUMENT;
|
---|
887 | }
|
---|
888 |
|
---|
889 | result = dump_irep(mrb, irep, dump_flags(flags, FLAG_BYTEORDER_NONATIVE), &bin, &bin_size);
|
---|
890 | if (result == MRB_DUMP_OK) {
|
---|
891 | if (fwrite(bin, sizeof(bin[0]), bin_size, fp) != bin_size) {
|
---|
892 | result = MRB_DUMP_WRITE_FAULT;
|
---|
893 | }
|
---|
894 | }
|
---|
895 |
|
---|
896 | mrb_free(mrb, bin);
|
---|
897 | return result;
|
---|
898 | }
|
---|
899 |
|
---|
900 | static mrb_bool
|
---|
901 | dump_bigendian_p(uint8_t flags)
|
---|
902 | {
|
---|
903 | switch (flags & DUMP_ENDIAN_NAT) {
|
---|
904 | case DUMP_ENDIAN_BIG:
|
---|
905 | return TRUE;
|
---|
906 | case DUMP_ENDIAN_LIL:
|
---|
907 | return FALSE;
|
---|
908 | default:
|
---|
909 | case DUMP_ENDIAN_NAT:
|
---|
910 | return bigendian_p();
|
---|
911 | }
|
---|
912 | }
|
---|
913 |
|
---|
914 | int
|
---|
915 | mrb_dump_irep_cfunc(mrb_state *mrb, mrb_irep *irep, uint8_t flags, FILE *fp, const char *initname)
|
---|
916 | {
|
---|
917 | uint8_t *bin = NULL;
|
---|
918 | size_t bin_size = 0, bin_idx = 0;
|
---|
919 | int result;
|
---|
920 |
|
---|
921 | if (fp == NULL || initname == NULL || initname[0] == '\0') {
|
---|
922 | return MRB_DUMP_INVALID_ARGUMENT;
|
---|
923 | }
|
---|
924 | flags = dump_flags(flags, FLAG_BYTEORDER_NATIVE);
|
---|
925 | result = dump_irep(mrb, irep, flags, &bin, &bin_size);
|
---|
926 | if (result == MRB_DUMP_OK) {
|
---|
927 | if (!dump_bigendian_p(flags)) {
|
---|
928 | if (fprintf(fp, "/* dumped in little endian order.\n"
|
---|
929 | " use `mrbc -E` option for big endian CPU. */\n") < 0) {
|
---|
930 | mrb_free(mrb, bin);
|
---|
931 | return MRB_DUMP_WRITE_FAULT;
|
---|
932 | }
|
---|
933 | }
|
---|
934 | else {
|
---|
935 | if (fprintf(fp, "/* dumped in big endian order.\n"
|
---|
936 | " use `mrbc -e` option for better performance on little endian CPU. */\n") < 0) {
|
---|
937 | mrb_free(mrb, bin);
|
---|
938 | return MRB_DUMP_WRITE_FAULT;
|
---|
939 | }
|
---|
940 | }
|
---|
941 | if (fprintf(fp, "#include <stdint.h>\n") < 0) { /* for uint8_t under at least Darwin */
|
---|
942 | mrb_free(mrb, bin);
|
---|
943 | return MRB_DUMP_WRITE_FAULT;
|
---|
944 | }
|
---|
945 | if (fprintf(fp,
|
---|
946 | "#ifdef __cplusplus\n"
|
---|
947 | "extern const uint8_t %s[];\n"
|
---|
948 | "#endif\n"
|
---|
949 | "const uint8_t\n"
|
---|
950 | "#if defined __GNUC__\n"
|
---|
951 | "__attribute__((aligned(%u)))\n"
|
---|
952 | "#elif defined _MSC_VER\n"
|
---|
953 | "__declspec(align(%u))\n"
|
---|
954 | "#endif\n"
|
---|
955 | "%s[] = {",
|
---|
956 | initname,
|
---|
957 | (uint16_t)MRB_DUMP_ALIGNMENT, (uint16_t)MRB_DUMP_ALIGNMENT, initname) < 0) {
|
---|
958 | mrb_free(mrb, bin);
|
---|
959 | return MRB_DUMP_WRITE_FAULT;
|
---|
960 | }
|
---|
961 | while (bin_idx < bin_size) {
|
---|
962 | if (bin_idx % 16 == 0) {
|
---|
963 | if (fputs("\n", fp) == EOF) {
|
---|
964 | mrb_free(mrb, bin);
|
---|
965 | return MRB_DUMP_WRITE_FAULT;
|
---|
966 | }
|
---|
967 | }
|
---|
968 | if (fprintf(fp, "0x%02x,", bin[bin_idx++]) < 0) {
|
---|
969 | mrb_free(mrb, bin);
|
---|
970 | return MRB_DUMP_WRITE_FAULT;
|
---|
971 | }
|
---|
972 | }
|
---|
973 | if (fputs("\n};\n", fp) == EOF) {
|
---|
974 | mrb_free(mrb, bin);
|
---|
975 | return MRB_DUMP_WRITE_FAULT;
|
---|
976 | }
|
---|
977 | }
|
---|
978 |
|
---|
979 | mrb_free(mrb, bin);
|
---|
980 | return result;
|
---|
981 | }
|
---|
982 |
|
---|
983 | #endif /* MRB_DISABLE_STDIO */
|
---|