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annotate lwasm/unicorns.c @ 235:e3741cf53e00

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Fix error messages related to undefined symbols in lwlink Make lwlink not complain about seciton base and length symbols. Also silence duplicate complaints about undefined symbols. There is no need to complain about undefined symbols during the file/section resolution stage! If they are truly undefined, they'll still be undefined at the reference resolution stage.
author William Astle <lost@l-w.ca>
date Sat, 11 Aug 2012 15:18:58 -0600
parents 164487152dd9
children
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1 /*
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2 unicorns.c
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3
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4 Copyright © 2012 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 /*
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23 This adds output to lwasm that is suitable for IDEs and other tools
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24 that are interesting in the doings of the assembler.
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25 */
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26
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27 #include <stdio.h>
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28 #include <string.h>
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29
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30 #include "input.h"
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31 #include "lwasm.h"
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32 #include "lw_alloc.h"
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33
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34 void do_list(asmstate_t *as);
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35
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36 static void print_urlencoding(FILE *stream, const char *string)
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37 {
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38 for ( ; *string; string++)
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39 {
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40 if (*string < 33 || *string > 126 || strchr("$&+,/:;=?@\"<>#%{}|\\^~[]`", *string))
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41 {
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42 fprintf(stream, "%%%02X", *string);
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43 }
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44 else
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45 {
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46 fputc(*string, stream);
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47 }
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48 }
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49 }
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50
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51 static void show_unicorn_error(FILE *fp, line_t *l, lwasm_error_t *ee, const char *tag)
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52 {
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53 fprintf(fp, "%s: lineno=%d,filename=", tag, l -> lineno);
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54 print_urlencoding(fp, l -> linespec);
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55 fputs(",message=", fp);
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56 print_urlencoding(fp, ee -> mess);
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57 if (ee -> charpos > 0)
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58 fprintf(fp, ",col=%d", ee -> charpos);
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59 fputc('\n', fp);
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60 }
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61
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62 void lwasm_do_unicorns(asmstate_t *as)
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63 {
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64 struct ifl *ifl;
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65 macrotab_t *me;
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66 structtab_t *se;
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67 int i;
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68 line_t *l;
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69 lwasm_error_t *ee;
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70
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71 /* output file list */
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72 for (ifl = ifl_head; ifl; ifl = ifl -> next)
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73 {
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74 fputs("RESOURCE: type=file,filename=", stdout);
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75 print_urlencoding(stdout, ifl -> fn);
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76 fputc('\n', stdout);
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77 }
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78
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79 /* output macro list */
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80 for (me = as -> macros; me; me = me -> next)
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81 {
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82 fprintf(stdout, "RESOURCE: type=macro,name=%s,lineno=%d,filename=", me -> name, me -> definedat -> lineno);
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83 print_urlencoding(stdout, me -> definedat -> linespec);
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84 fputs(",flags=", stdout);
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85 if (me -> flags & macro_noexpand)
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86 fputs("noexpand", stdout);
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87 fputs(",def=", stdout);
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88 for (i = 0; i < me -> numlines; i++)
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89 {
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90 if (i)
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91 fputc(';', stdout);
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92 print_urlencoding(stdout, me -> lines[i]);
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93 }
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94 fputc('\n', stdout);
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95 }
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96
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97 /* output structure list */
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98 for (se = as -> structs; se; se = se -> next)
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99 {
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100 fprintf(stdout, "RESOURCE: type=struct,name=%s,lineno=%d,filename=", se -> name, se -> definedat -> lineno);
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101 print_urlencoding(stdout, se -> definedat -> linespec);
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102 fputc('\n', stdout);
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103 }
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104
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105 /* output error and warning lists */
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106 for (l = as -> line_head; l; l = l -> next)
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107 {
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108 if (l -> err)
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109 {
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110 for (ee = l -> err; ee; ee = ee -> next)
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111 {
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112 show_unicorn_error(stdout, l, ee, "ERROR");
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113 }
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114 }
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115
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116 if (l -> warn)
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117 {
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118 for (ee = l -> warn; ee; ee = ee -> next)
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119 {
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120 show_unicorn_error(stdout, l, ee, "WARNING");
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121 }
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122 }
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123 }
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124
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125 fprintf(stdout, "UNICORNSAWAY:\n");
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126 }