FreeCalypso > hg > freecalypso-reveng
annotate leo-obj/tool/symtab.c @ 404:ceb71478414d
tfo: find-is-hdr program written
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sat, 11 Mar 2023 18:16:22 +0000 |
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1 /* |
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2 * Code for working with the symbol table |
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3 */ |
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4 |
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5 #include <sys/types.h> |
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6 #include <stdio.h> |
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7 #include <stdlib.h> |
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8 #include "filestruct.h" |
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9 #include "intstruct.h" |
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10 #include "coffconst.h" |
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11 #include "globals.h" |
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12 |
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13 static struct classmap { |
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14 int code; |
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15 char *str; |
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16 } classtab[] = { |
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17 {C_NULL, "NULL"}, |
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18 {C_AUTO, "AUTO"}, |
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19 {C_EXT, "EXT"}, |
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20 {C_STAT, "STAT"}, |
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21 {C_REG, "REG"}, |
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22 {C_EXTREF, "EXTREF"}, |
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23 {C_LABEL, "LABEL"}, |
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24 {C_ULABEL, "ULABEL"}, |
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25 {C_MOS, "MOS"}, |
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26 {C_ARG, "ARG"}, |
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27 {C_STRTAG, "STRTAG"}, |
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28 {C_MOU, "MOU"}, |
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29 {C_UNTAG, "UNTAG"}, |
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30 {C_TPDEF, "TPDEF"}, |
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31 {C_USTATIC, "USTATIC"}, |
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32 {C_ENTAG, "ENTAG"}, |
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33 {C_MOE, "MOE"}, |
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34 {C_REGPARM, "REGPARM"}, |
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35 {C_FIELD, "FIELD"}, |
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36 {C_UEXT, "UEXT"}, |
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37 {C_STATLAB, "STATLAB"}, |
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38 {C_EXTLAB, "EXTLAB"}, |
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39 {C_SYSTEM, "SYSTEM"}, |
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40 {C_VARARG, "VARARG"}, |
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41 {C_BLOCK, "BLOCK"}, |
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42 {C_FCN, "FCN"}, |
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43 {C_EOS, "EOS"}, |
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44 {C_FILE, "FILE"}, |
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45 {C_LINE, "LINE"}, |
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46 {0, 0} |
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47 }; |
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48 |
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49 char * |
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50 storage_class_to_string(code, numbuf) |
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51 char *numbuf; |
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52 { |
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53 struct classmap *tp; |
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54 |
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55 for (tp = classtab; tp->str; tp++) |
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56 if (tp->code == code) |
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57 return(tp->str); |
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58 sprintf(numbuf, "%d", code); |
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59 return(numbuf); |
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60 } |
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61 |
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62 dump_symtab(show_aux) |
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63 { |
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64 unsigned n, i; |
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65 struct internal_syment *sym; |
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66 char *sec, secstr[8]; |
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67 char *class, classbuf[8]; |
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68 |
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69 printf("%-5s %-30s %-4s %-7s %-12s %-8s\n", |
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70 "Num", "Name", "Type", "Class", "Section", "Value"); |
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71 for (n = 0; n < nsymtab; n++) { |
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72 sym = symtab[n]; |
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73 if (!sym) |
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74 continue; |
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75 if (sym->section) |
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76 sec = sym->section->name; |
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77 else { |
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78 sprintf(secstr, "%d", sym->scnum); |
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79 sec = secstr; |
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80 } |
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81 class = storage_class_to_string(sym->class, classbuf); |
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82 printf("%-5u %-30s %04X %-7s %-12s %08X%s\n", |
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83 n, sym->name, sym->type, class, |
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84 sec, sym->value, sym->aux ? " Aux" : ""); |
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85 if (sym->aux && show_aux) { |
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86 for (i = 0; i < 18; i++) |
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87 printf("%c%02X", i ? ' ' : '\t', sym->aux[i]); |
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88 putchar('\n'); |
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89 } |
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90 } |
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91 return(0); |
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92 } |
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93 |
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94 static void |
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95 initial_fill_for_sort(sec) |
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96 struct internal_scnhdr *sec; |
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97 { |
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98 unsigned n, m; |
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99 struct internal_syment *sym; |
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100 |
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101 m = 0; |
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102 for (n = 0; n < nsymtab; n++) { |
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103 sym = symtab[n]; |
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104 if (!sym) |
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105 continue; |
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106 if (sym->section != sec) |
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107 continue; |
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108 sec->sorted_symbols[m++] = sym; |
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109 } |
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110 } |
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111 |
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112 static int |
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113 compare_for_sort(p1, p2) |
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114 struct internal_syment **p1, **p2; |
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115 { |
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116 /* sort by value first */ |
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117 if ((*p1)->value < (*p2)->value) |
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118 return(-1); |
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119 if ((*p1)->value > (*p2)->value) |
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120 return(1); |
116
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121 /* if same value, retain the original symtab order */ |
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122 if ((*p1)->number < (*p2)->number) |
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123 return(-1); |
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124 if ((*p1)->number > (*p2)->number) |
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125 return(1); |
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126 else |
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127 return(0); |
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128 } |
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129 |
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130 void |
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131 sort_symbols_of_sec(sec) |
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132 struct internal_scnhdr *sec; |
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133 { |
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134 if (sec->sorted_symbols) |
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135 return; |
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136 if (!sec->nsymbols) { |
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137 fprintf(stderr, |
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138 "BUG: sort_symbols_of_sec() called for section \"%s\" w/o symbols\n", |
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139 sec->name); |
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140 exit(1); |
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141 } |
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142 sec->sorted_symbols = malloc(sizeof(void *) * sec->nsymbols); |
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143 if (!sec->sorted_symbols) { |
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144 perror("malloc"); |
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145 exit(1); |
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146 } |
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147 initial_fill_for_sort(sec); |
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148 qsort(sec->sorted_symbols, sec->nsymbols, sizeof(void *), |
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149 compare_for_sort); |
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150 } |
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151 |
118
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152 void |
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153 sort_symbols_of_all_sec() |
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154 { |
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155 unsigned n; |
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156 struct internal_scnhdr *sec; |
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157 |
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158 for (n = 0; n < nsections; n++) { |
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159 sec = sections + n; |
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160 if (!sec->nsymbols) |
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161 continue; |
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162 sort_symbols_of_sec(sec); |
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163 } |
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164 } |
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165 |
81
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166 cmd_nm() |
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167 { |
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168 unsigned n, m; |
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169 struct internal_scnhdr *sec; |
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170 struct internal_syment *sym; |
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171 char classbuf[8]; |
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172 |
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173 get_int_section_table(); |
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174 get_int_symbol_table(); |
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175 for (n = 0; n < nsections; n++) { |
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176 sec = sections + n; |
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177 if (!sec->nsymbols) |
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178 continue; |
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179 printf("%s:\n\n", sec->name); |
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180 sort_symbols_of_sec(sec); |
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181 for (m = 0; m < sec->nsymbols; m++) { |
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182 sym = sec->sorted_symbols[m]; |
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183 printf("%08X %-7s %s\n", sym->value, |
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184 storage_class_to_string(sym->class, classbuf), |
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185 sym->name); |
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186 } |
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187 putchar('\n'); |
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188 } |
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189 exit(0); |
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190 } |