FreeCalypso > hg > freecalypso-reveng

annotate leo-obj/tool/symtab.c @ 170:13a9ce1590fc

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objgrep: parsing of -r and -s options implemented, no functionality yet
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Fri, 04 Jul 2014 02:56:21 +0000
parents ed533d469838
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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 {
116
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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);
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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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diff changeset
139 sec->name);
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140 exit(1);
192da19c7506 tiobjd: symbol sorting implemented
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141 }
192da19c7506 tiobjd: symbol sorting implemented
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diff changeset
142 sec->sorted_symbols = malloc(sizeof(void *) * sec->nsymbols);
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diff changeset
143 if (!sec->sorted_symbols) {
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diff changeset
144 perror("malloc");
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145 exit(1);
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parents: 80
diff changeset
146 }
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parents: 80
diff changeset
147 initial_fill_for_sort(sec);
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diff changeset
148 qsort(sec->sorted_symbols, sec->nsymbols, sizeof(void *),
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diff changeset
149 compare_for_sort);
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diff changeset
150 }
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parents: 80
diff changeset
151
118
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diff changeset
152 void
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parents: 116
diff changeset
153 sort_symbols_of_all_sec()
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 116
diff changeset
154 {
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parents: 116
diff changeset
155 unsigned n;
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parents: 116
diff changeset
156 struct internal_scnhdr *sec;
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 116
diff changeset
157
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parents: 116
diff changeset
158 for (n = 0; n < nsections; n++) {
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diff changeset
159 sec = sections + n;
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parents: 116
diff changeset
160 if (!sec->nsymbols)
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 116
diff changeset
161 continue;
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 116
diff changeset
162 sort_symbols_of_sec(sec);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 116
diff changeset
163 }
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 116
diff changeset
164 }
193926ccd1ec tiobjd: better handling of section-relative relocs
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 116
diff changeset
165
81
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parents: 80
diff changeset
166 cmd_nm()
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parents: 80
diff changeset
167 {
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parents: 80
diff changeset
168 unsigned n, m;
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parents: 80
diff changeset
169 struct internal_scnhdr *sec;
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parents: 80
diff changeset
170 struct internal_syment *sym;
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parents: 80
diff changeset
171 char classbuf[8];
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parents: 80
diff changeset
172
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parents: 80
diff changeset
173 get_int_section_table();
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parents: 80
diff changeset
174 get_int_symbol_table();
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parents: 80
diff changeset
175 for (n = 0; n < nsections; n++) {
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parents: 80
diff changeset
176 sec = sections + n;
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parents: 80
diff changeset
177 if (!sec->nsymbols)
192da19c7506 tiobjd: symbol sorting implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 80
diff changeset
178 continue;
192da19c7506 tiobjd: symbol sorting implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 80
diff changeset
179 printf("%s:\n\n", sec->name);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 80
diff changeset
180 sort_symbols_of_sec(sec);
192da19c7506 tiobjd: symbol sorting implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 80
diff changeset
181 for (m = 0; m < sec->nsymbols; m++) {
192da19c7506 tiobjd: symbol sorting implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 80
diff changeset
182 sym = sec->sorted_symbols[m];
192da19c7506 tiobjd: symbol sorting implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 80
diff changeset
183 printf("%08X %-7s %s\n", sym->value,
192da19c7506 tiobjd: symbol sorting implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 80
diff changeset
184 storage_class_to_string(sym->class, classbuf),
192da19c7506 tiobjd: symbol sorting implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 80
diff changeset
185 sym->name);
192da19c7506 tiobjd: symbol sorting implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 80
diff changeset
186 }
192da19c7506 tiobjd: symbol sorting implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 80
diff changeset
187 putchar('\n');
192da19c7506 tiobjd: symbol sorting implemented
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parents: 80
diff changeset
188 }
192da19c7506 tiobjd: symbol sorting implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 80
diff changeset
189 exit(0);
192da19c7506 tiobjd: symbol sorting implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 80
diff changeset
190 }