Mercurial > hg > index.cgi
annotate lwlink/readfiles.c @ 228:042c7b74faf0
Make unicorns not suppress assembly listings.
Make the unicorns not block listings if requested.
author | William Astle <lost@l-w.ca> |
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date | Sun, 15 Jul 2012 21:43:18 -0600 |
parents | 606123758641 |
children | ce1fdc8d6568 |
rev | line source |
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0
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1 /* |
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2 readfiles.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 LWLINK. |
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6 |
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7 LWLINK 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 Reads input files |
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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 <lw_alloc.h> |
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31 #include <lw_string.h> |
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32 |
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33 #include "lwlink.h" |
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34 |
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35 void read_lwobj16v0(fileinfo_t *fn); |
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36 void read_lwar1v(fileinfo_t *fn); |
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37 |
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38 /* |
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39 The logic of reading the entire file into memory is simple. All the symbol |
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40 names in the file are NUL terminated strings and can be used directly without |
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41 making additional copies. |
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42 */ |
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43 void read_file(fileinfo_t *fn) |
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44 { |
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45 if (!memcmp(fn -> filedata, "LWOBJ16", 8)) |
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46 { |
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47 // read v0 LWOBJ16 file |
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48 read_lwobj16v0(fn); |
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49 } |
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50 else if (!memcmp(fn -> filedata, "LWAR1V", 6)) |
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51 { |
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52 // archive file |
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53 read_lwar1v(fn); |
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54 } |
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55 else |
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56 { |
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57 fprintf(stderr, "%s: unknown file format\n", fn -> filename); |
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58 exit(1); |
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59 } |
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60 } |
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61 |
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62 void read_files(void) |
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63 { |
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64 int i; |
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65 long size; |
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66 FILE *f; |
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67 long bread; |
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68 for (i = 0; i < ninputfiles; i++) |
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69 { |
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70 if (inputfiles[i] -> islib) |
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71 { |
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72 char *tf; |
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73 int s; |
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74 int j; |
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75 |
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76 f = NULL; |
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77 |
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78 for (j = 0; j < nlibdirs; j++) |
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79 { |
179
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80 if (libdirs[j][0] == '=') |
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81 { |
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82 // handle sysroot |
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83 s = strlen(libdirs[j]) + 7 + strlen(sysroot) + strlen(inputfiles[i] -> filename); |
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84 tf = lw_alloc(s + 1); |
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85 sprintf(tf, "%s/%s/lib%s.a", sysroot, libdirs[j] + 1, inputfiles[i] -> filename); |
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86 } |
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87 else |
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88 { |
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89 s = strlen(libdirs[j]) + 7 + strlen(inputfiles[i] -> filename); |
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90 tf = lw_alloc(s + 1); |
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91 sprintf(tf, "%s/lib%s.a", libdirs[j], inputfiles[i] -> filename); |
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92 } |
0
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93 f = fopen(tf, "rb"); |
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94 if (!f) |
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95 { |
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96 free(tf); |
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97 continue; |
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98 } |
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99 free(tf); |
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100 break; |
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101 } |
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102 if (!f) |
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103 { |
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104 fprintf(stderr, "Can't open library: -l%s\n", inputfiles[i] -> filename); |
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105 exit(1); |
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106 } |
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107 } |
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108 else |
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109 { |
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110 f = fopen(inputfiles[i] -> filename, "rb"); |
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111 if (!f) |
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112 { |
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113 fprintf(stderr, "Can't open file %s:", inputfiles[i] -> filename); |
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114 perror(""); |
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115 exit(1); |
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116 } |
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117 } |
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118 fseek(f, 0, SEEK_END); |
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119 size = ftell(f); |
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120 rewind(f); |
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121 |
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122 inputfiles[i] -> filedata = lw_alloc(size); |
0
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123 inputfiles[i] -> filesize = size; |
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124 |
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125 bread = fread(inputfiles[i] -> filedata, 1, size, f); |
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126 if (bread < size) |
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127 { |
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128 fprintf(stderr, "Short read on file %s (%ld/%ld):", inputfiles[i] -> filename, bread, size); |
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129 perror(""); |
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130 exit(1); |
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131 } |
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132 |
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133 fclose(f); |
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134 |
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135 read_file(inputfiles[i]); |
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136 } |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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137 } |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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138 |
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139 // this macro is used to bail out if we run off the end of the file data |
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140 // while parsing - it keeps the code below cleaner |
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141 #define NEXTBYTE() do { cc++; if (cc > fn -> filesize) { fprintf(stderr, "%s: invalid file format\n", fn -> filename); exit(1); } } while (0) |
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142 // this macro is used to refer to the current byte in the stream |
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143 #define CURBYTE() (fn -> filedata[cc < fn -> filesize ? cc : fn -> filesize - 1]) |
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144 // this one will leave the input pointer past the trailing NUL |
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145 #define CURSTR() read_lwobj16v0_str(&cc, fn) |
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146 unsigned char *read_lwobj16v0_str(long *cc1, fileinfo_t *fn) |
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147 { |
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148 int cc = *cc1; |
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149 unsigned char *fp; |
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150 fp = &CURBYTE(); |
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151 while (CURBYTE()) |
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152 NEXTBYTE(); |
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153 NEXTBYTE(); |
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154 *cc1 = cc; |
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155 return fp; |
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156 } |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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157 // the function below can be switched to dealing with data coming from a |
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158 // source other than an in-memory byte pool by adjusting the input data |
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159 // in "fn" and the above two macros |
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160 |
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161 void read_lwobj16v0(fileinfo_t *fn) |
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162 { |
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163 unsigned char *fp; |
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164 long cc; |
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165 section_t *s; |
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166 int val; |
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167 symtab_t *se; |
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168 |
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169 // start reading *after* the magic number |
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170 cc = 8; |
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171 |
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172 // init data |
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173 fn -> sections = NULL; |
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174 fn -> nsections = 0; |
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175 |
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176 while (1) |
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177 { |
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178 // NEXTBYTE(); |
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179 // bail out if no more sections |
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180 if (!(CURBYTE())) |
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181 break; |
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182 |
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183 fp = CURSTR(); |
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184 |
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185 // we now have a section name in fp |
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186 // create new section entry |
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187 fn -> sections = lw_realloc(fn -> sections, sizeof(section_t) * (fn -> nsections + 1)); |
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188 s = &(fn -> sections[fn -> nsections]); |
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189 fn -> nsections += 1; |
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190 |
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191 s -> localsyms = NULL; |
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192 s -> flags = 0; |
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193 s -> codesize = 0; |
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194 s -> name = fp; |
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195 s -> loadaddress = 0; |
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196 s -> localsyms = NULL; |
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197 s -> exportedsyms = NULL; |
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198 s -> incompletes = NULL; |
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199 s -> processed = 0; |
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200 s -> file = fn; |
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201 |
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202 // read flags |
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203 while (CURBYTE()) |
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204 { |
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205 switch (CURBYTE()) |
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206 { |
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207 case 0x01: |
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208 s -> flags |= SECTION_BSS; |
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209 break; |
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210 |
156
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
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8
diff
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|
211 case 0x02: |
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Added 'constant' sections to object file handling for lwasm and lwlink
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212 s -> flags |= SECTION_CONST; |
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Added 'constant' sections to object file handling for lwasm and lwlink
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213 break; |
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Added 'constant' sections to object file handling for lwasm and lwlink
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214 |
0
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215 default: |
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216 fprintf(stderr, "%s (%s): unrecognized section flag %02X\n", fn -> filename, s -> name, (int)(CURBYTE())); |
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217 exit(1); |
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218 } |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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219 NEXTBYTE(); |
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220 } |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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221 // skip NUL terminating flags |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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222 NEXTBYTE(); |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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223 |
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224 // now parse the local symbol table |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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225 while (CURBYTE()) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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226 { |
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227 fp = CURSTR(); |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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228 |
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229 // fp is the symbol name |
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230 val = (CURBYTE()) << 8; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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231 NEXTBYTE(); |
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232 val |= (CURBYTE()); |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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233 NEXTBYTE(); |
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234 // val is now the symbol value |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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235 |
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236 // create symbol table entry |
8
fdc11ef4115b
Switched lwlink to lw_cmdline from argp and also brought in lw_alloc and lw_string to replace util.c
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237 se = lw_alloc(sizeof(symtab_t)); |
0
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238 se -> next = s -> localsyms; |
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239 s -> localsyms = se; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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240 se -> sym = fp; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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241 se -> offset = val; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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242 } |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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243 // skip terminating NUL |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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244 NEXTBYTE(); |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff
changeset
|
245 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff
changeset
|
246 // now parse the exported symbol table |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff
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|
247 while (CURBYTE()) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff
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|
248 { |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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249 fp = CURSTR(); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff
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|
250 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff
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251 // fp is the symbol name |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff
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252 val = (CURBYTE()) << 8; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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253 NEXTBYTE(); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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|
254 val |= (CURBYTE()); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff
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|
255 NEXTBYTE(); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff
changeset
|
256 // val is now the symbol value |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff
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|
257 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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|
258 // create symbol table entry |
8
fdc11ef4115b
Switched lwlink to lw_cmdline from argp and also brought in lw_alloc and lw_string to replace util.c
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2
diff
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|
259 se = lw_alloc(sizeof(symtab_t)); |
0
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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260 se -> next = s -> exportedsyms; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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261 s -> exportedsyms = se; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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262 se -> sym = fp; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff
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263 se -> offset = val; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff
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|
264 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff
changeset
|
265 // skip terminating NUL |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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266 NEXTBYTE(); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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267 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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268 // now parse the incomplete references and make a list of |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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269 // external references that need resolution |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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270 while (CURBYTE()) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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271 { |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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272 reloc_t *rp; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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273 lw_expr_term_t *term; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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274 |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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275 // we have a reference |
8
fdc11ef4115b
Switched lwlink to lw_cmdline from argp and also brought in lw_alloc and lw_string to replace util.c
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2
diff
changeset
|
276 rp = lw_alloc(sizeof(reloc_t)); |
0
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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277 rp -> next = s -> incompletes; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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278 s -> incompletes = rp; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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279 rp -> offset = 0; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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|
280 rp -> expr = lw_expr_stack_create(); |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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281 rp -> flags = RELOC_NORM; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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|
282 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff
changeset
|
283 // parse the expression |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff
changeset
|
284 while (CURBYTE()) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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285 { |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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286 int tt = CURBYTE(); |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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287 NEXTBYTE(); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff
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|
288 switch (tt) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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289 { |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff
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290 case 0xFF: |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff
changeset
|
291 // a flag specifier |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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292 tt = CURBYTE(); |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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293 rp -> flags = tt; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff
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294 NEXTBYTE(); |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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295 term = NULL; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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296 break; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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|
297 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff
changeset
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298 case 0x01: |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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299 // 16 bit integer |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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300 tt = CURBYTE() << 8; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff
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301 NEXTBYTE(); |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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302 tt |= CURBYTE(); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff
changeset
|
303 NEXTBYTE(); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff
changeset
|
304 // normalize for negatives... |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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305 if (tt > 0x7fff) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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306 tt -= 0x10000; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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307 term = lw_expr_term_create_int(tt); |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff
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|
308 break; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff
changeset
|
309 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff
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|
310 case 0x02: |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff
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|
311 // external symbol reference |
2
7317fbe024af
Clean up insane number of compiler warnings under -Wall
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0
diff
changeset
|
312 term = lw_expr_term_create_sym((char *)CURSTR(), 0); |
0
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff
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|
313 break; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff
changeset
|
314 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff
changeset
|
315 case 0x03: |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff
changeset
|
316 // internal symbol reference |
2
7317fbe024af
Clean up insane number of compiler warnings under -Wall
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parents:
0
diff
changeset
|
317 term = lw_expr_term_create_sym((char *)CURSTR(), 1); |
0
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff
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|
318 break; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff
changeset
|
319 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff
changeset
|
320 case 0x04: |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff
changeset
|
321 // operator |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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322 term = lw_expr_term_create_oper(CURBYTE()); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff
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|
323 NEXTBYTE(); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff
changeset
|
324 break; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
325 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff
changeset
|
326 case 0x05: |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff
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|
327 // section base reference (NULL internal reference is |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
328 // the section base address |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff
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|
329 term = lw_expr_term_create_sym(NULL, 1); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff
changeset
|
330 break; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
331 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
332 default: |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff
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|
333 fprintf(stderr, "%s (%s): bad relocation expression (%02X)\n", fn -> filename, s -> name, tt); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff
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|
334 exit(1); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff
changeset
|
335 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
336 if (term) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff
changeset
|
337 { |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff
changeset
|
338 lw_expr_stack_push(rp -> expr, term); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff
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|
339 lw_expr_term_free(term); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff
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|
340 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
341 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
342 // skip the NUL |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
343 NEXTBYTE(); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
344 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
345 // fetch the offset |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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diff
changeset
|
346 rp -> offset = CURBYTE() << 8; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff
changeset
|
347 NEXTBYTE(); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
348 rp -> offset |= CURBYTE() & 0xff; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
349 NEXTBYTE(); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
350 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
351 // skip the NUL terminating the relocations |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
352 NEXTBYTE(); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
353 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
354 // now set code location and size and verify that the file |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
355 // contains data going to the end of the code (if !SECTION_BSS) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
356 s -> codesize = CURBYTE() << 8; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
357 NEXTBYTE(); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
358 s -> codesize |= CURBYTE(); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
359 NEXTBYTE(); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
360 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
361 s -> code = &(CURBYTE()); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
362 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
363 // skip the code if we're not in a BSS section |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
364 if (!(s -> flags & SECTION_BSS)) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
365 { |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
366 int i; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
367 for (i = 0; i < s -> codesize; i++) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
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368 NEXTBYTE(); |
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369 } |
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370 } |
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371 } |
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372 |
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373 /* |
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374 Read an archive file - this will create a "sub" record and farm out the |
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375 parsing of the sub files to the regular file parsers |
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376 |
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377 The archive file format consists of the 6 byte magic number followed by a |
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378 series of records as follows: |
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379 |
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380 - NUL terminated file name |
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381 - 32 bit file length in big endian order |
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382 - the file data |
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383 |
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384 An empty file name indicates the end of the file. |
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385 |
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386 */ |
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387 void read_lwar1v(fileinfo_t *fn) |
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388 { |
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389 unsigned long cc = 6; |
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390 unsigned long flen; |
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391 unsigned long l; |
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392 for (;;) |
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393 { |
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394 if (cc >= fn -> filesize || !(fn -> filedata[cc])) |
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395 return; |
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396 |
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397 for (l = cc; cc < fn -> filesize && fn -> filedata[cc]; cc++) |
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398 /* do nothing */ ; |
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399 |
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400 cc++; |
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401 |
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402 if (cc >= fn -> filesize) |
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403 { |
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404 fprintf(stderr, "Malformed archive file %s.\n", fn -> filename); |
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405 exit(1); |
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406 } |
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407 |
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408 if (cc + 4 > fn -> filesize) |
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409 return; |
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410 |
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411 flen = (fn -> filedata[cc++] << 24); |
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412 flen |= (fn -> filedata[cc++] << 16); |
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413 flen |= (fn -> filedata[cc++] << 8); |
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414 flen |= (fn -> filedata[cc++]); |
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415 |
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416 if (flen == 0) |
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417 return; |
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418 |
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419 if (cc + flen > fn -> filesize) |
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420 { |
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421 fprintf(stderr, "Malformed archive file %s.\n", fn -> filename); |
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422 exit(1); |
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423 } |
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424 |
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425 // add the "sub" input file |
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426 fn -> subs = lw_realloc(fn -> subs, sizeof(fileinfo_t *) * (fn -> nsubs + 1)); |
8
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Switched lwlink to lw_cmdline from argp and also brought in lw_alloc and lw_string to replace util.c
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427 fn -> subs[fn -> nsubs] = lw_alloc(sizeof(fileinfo_t)); |
0
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428 memset(fn -> subs[fn -> nsubs], 0, sizeof(fileinfo_t)); |
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429 fn -> subs[fn -> nsubs] -> filedata = fn -> filedata + cc; |
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430 fn -> subs[fn -> nsubs] -> filesize = flen; |
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Clean up insane number of compiler warnings under -Wall
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431 fn -> subs[fn -> nsubs] -> filename = lw_strdup((char *)(fn -> filedata + l)); |
0
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432 fn -> subs[fn -> nsubs] -> parent = fn; |
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433 fn -> subs[fn -> nsubs] -> forced = fn -> forced; |
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434 read_file(fn -> subs[fn -> nsubs]); |
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435 fn -> nsubs++; |
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436 cc += flen; |
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437 } |
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438 } |