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annotate lwar/list.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 2c24602be78f
children 346966cffeef
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 list.c
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3 Copyright © 2009 William Astle
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4
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5 This file is part of LWAR.
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6
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7 LWAR is free software: you can redistribute it and/or modify it under the
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8 terms of the GNU General Public License as published by the Free Software
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9 Foundation, either version 3 of the License, or (at your option) any later
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10 version.
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11
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12 This program is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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15 more details.
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16
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17 You should have received a copy of the GNU General Public License along with
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18 this program. If not, see <http://www.gnu.org/licenses/>.
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19
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20
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21 Implements the program startup code
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22
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23 */
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24
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25 #include <errno.h>
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26 #include <stdio.h>
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27 #include <stdlib.h>
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28 #include <string.h>
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29
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30 #include "lwar.h"
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31
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32 void do_list(void)
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33 {
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34 FILE *f;
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35 char buf[8];
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36 long l;
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37 int c;
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38
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39 f = fopen(archive_file, "r");
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40 if (!f)
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41 {
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42 perror("Opening archive file");
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43 exit(1);
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44 }
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45
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46 fread(buf, 1, 6, f);
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47 if (memcmp("LWAR1V", buf, 6))
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48 {
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49 fprintf(stderr, "%s is not a valid archive file.\n", archive_file);
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50 exit(1);
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51 }
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52
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53 for (;;)
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54 {
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55 c = fgetc(f);
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56 if (ferror(f))
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57 {
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58 perror("Reading archive file");
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59 exit(1);
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60 }
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61 if (c == EOF)
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62 return;
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63
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64
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65 // find the end of the file name
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66 if (!c)
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67 return;
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68
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69 while (c)
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70 {
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71 putchar(c);
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72 c = fgetc(f);
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73 if (c == EOF || ferror(f))
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74 {
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75 fprintf(stderr, "Bad archive file\n");
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76 exit(1);
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77 }
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78 }
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79
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80 // get length of archive member
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81 l = 0;
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82 c = fgetc(f);
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83 l = c << 24;
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84 c = fgetc(f);
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85 l |= c << 16;
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86 c = fgetc(f);
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87 l |= c << 8;
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88 c = fgetc(f);
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89 l |= c;
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90 printf(": %04lx bytes\n", l);
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91 fseek(f, l, SEEK_CUR);
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92 }
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93 }