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annotate lwasm/symdump.c @ 533:543b5d1341d2

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Add note to manual about numeric entry addresses in scripts Link scripts require a numeric entry address to begin with a digit. Make a note about that in the manual since hex addresses starting with letters could be mistaken for symbols.
author William Astle <lost@l-w.ca>
date Sat, 14 May 2022 12:57:50 -0600
parents 1c3220ed87a8
children
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1 /*
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2 symdump.c
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3
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4 Copyright © 2019 William Astle
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5
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6 This file is part of LWTOOLS.
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7
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8 LWTOOLS is free software: you can redistribute it and/or modify it under the
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9 terms of the GNU General Public License as published by the Free Software
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10 Foundation, either version 3 of the License, or (at your option) any later
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11 version.
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12
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13 This program is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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16 more details.
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17
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18 You should have received a copy of the GNU General Public License along with
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19 this program. If not, see <http://www.gnu.org/licenses/>.
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20 */
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21
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22 #include <stdio.h>
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23 #include <stdlib.h>
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24 #include <string.h>
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25
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26 #include <lw_alloc.h>
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27 #include <lw_expr.h>
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28 #include <lw_string.h>
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29
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30 #include "lwasm.h"
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31
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32 struct listinfo
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33 {
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34 sectiontab_t *sect;
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35 asmstate_t *as;
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36 int complex;
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37 };
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38
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39 int dump_symbols_test(lw_expr_t e, void *p)
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40 {
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41 struct listinfo *li = p;
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42
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43 if (li -> complex)
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44 return 0;
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45
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46 if (lw_expr_istype(e, lw_expr_type_special))
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47 {
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48 if (lw_expr_specint(e) == lwasm_expr_secbase)
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49 {
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50 if (li -> sect)
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51 {
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52 li -> complex = 1;
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53 }
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54 else
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55 {
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56 li -> sect = lw_expr_specptr(e);
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57 }
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58 }
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59 }
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60 return 0;
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61 }
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62
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63 void dump_symbols_aux(asmstate_t *as, FILE *of, struct symtabe *se)
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64 {
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65 struct symtabe *s;
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66 lw_expr_t te;
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67 struct listinfo li;
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68
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69 li.as = as;
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70
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71 if (!se)
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72 return;
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73
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74 dump_symbols_aux(as, of, se -> left);
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75
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76 for (s = se; s; s = s -> nextver)
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77 {
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78 if (s -> flags & symbol_flag_nolist)
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79 continue;
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80
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81 if (s -> context >= 0)
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82 continue;
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83
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84 lwasm_reduce_expr(as, s -> value);
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85
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86 fprintf(of, "%s ", s -> symbol);
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87 if (s -> flags & symbol_flag_set)
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88 fputs("SET", of);
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89 else
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90 fputs("EQU", of);
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91 te = lw_expr_copy(s -> value);
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92 li.complex = 0;
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93 li.sect = NULL;
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94 lw_expr_testterms(te, dump_symbols_test, &li);
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95 if (li.sect)
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96 {
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97 as -> exportcheck = 1;
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98 as -> csect = li.sect;
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99 lwasm_reduce_expr(as, te);
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100 as -> exportcheck = 0;
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101 }
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102
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103 if (lw_expr_istype(te, lw_expr_type_int))
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104 {
490
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105 fprintf(of, " $%04X\n", lw_expr_intval(te));
487
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106 }
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107 else
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108 {
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109 fprintf(of, " 0 ; <<incomplete>>\n");
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110 }
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111 lw_expr_destroy(te);
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112 }
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113
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114 dump_symbols_aux(as, of, se -> right);
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115 }
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116
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117 void do_symdump(asmstate_t *as)
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118 {
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119 FILE *of;
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120
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121 if (!(as -> flags & FLAG_SYMDUMP))
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122 {
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123 return;
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124 }
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125 else
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126 {
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127 if (as -> symbol_dump_file)
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128 {
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129 if (strcmp(as -> symbol_dump_file, "-") == 0)
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130 {
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131 of = stdout;
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132 }
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133 else
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134 of = fopen(as -> symbol_dump_file, "w");
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135 }
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136 else
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137 of = stdout;
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138
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139 if (!of)
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140 {
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141 fprintf(stderr, "Cannot open list file; list not generated\n");
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142 return;
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143 }
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144 }
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145 dump_symbols_aux(as, of, as -> symtab.head);
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146 }