Mercurial > hg > index.cgi
annotate lwlink/readfiles.c @ 389:2d9b7ae6c329
Throw error if address overflows in extended mode
This may or may not cause extra problems due to sloppiness in dealing with
calculations that overflow in 16 bits. However, presumably it is a good idea
so unless something major pops up, it seems like a good idea.
Thanks to Erik G <erik@6809.org> for the patch.
author | William Astle <lost@l-w.ca> |
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date | Mon, 13 Jul 2015 21:37:49 -0600 |
parents | 221b5f58d8ad |
children | fda62f676ed4 |
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 |
8
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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 |
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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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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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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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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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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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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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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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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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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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; |
236
ce1fdc8d6568
Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
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179
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201 s -> afterbytes = NULL; |
ce1fdc8d6568
Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
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179
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202 s -> aftersize = 0; |
0
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203 |
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204 // read flags |
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205 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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206 { |
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207 switch (CURBYTE()) |
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208 { |
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209 case 0x01: |
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210 s -> flags |= SECTION_BSS; |
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211 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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212 |
156
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
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8
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|
213 case 0x02: |
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Added 'constant' sections to object file handling for lwasm and lwlink
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214 s -> flags |= SECTION_CONST; |
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Added 'constant' sections to object file handling for lwasm and lwlink
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215 break; |
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
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216 |
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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217 default: |
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218 fprintf(stderr, "%s (%s): unrecognized section flag %02X\n", fn -> filename, s -> name, (int)(CURBYTE())); |
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219 exit(1); |
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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 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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222 } |
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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 // 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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224 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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225 |
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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 // 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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227 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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228 { |
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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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229 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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230 |
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231 // fp is the symbol name |
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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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232 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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233 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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234 val |= (CURBYTE()); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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235 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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236 // 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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|
237 |
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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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238 // 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
lost@l-w.ca
parents:
2
diff
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239 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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240 se -> next = s -> localsyms; |
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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 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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242 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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243 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
changeset
|
244 } |
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
|
245 // 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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parents:
diff
changeset
|
246 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
|
247 |
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
|
248 // 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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|
249 while (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
changeset
|
250 { |
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
|
251 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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|
252 |
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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253 // 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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|
254 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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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 |= (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
|
257 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
|
258 // 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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259 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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|
260 // 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
lost@l-w.ca
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2
diff
changeset
|
261 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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diff
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262 se -> next = s -> exportedsyms; |
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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263 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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diff
changeset
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264 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
changeset
|
265 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
changeset
|
266 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff
changeset
|
267 // 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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268 NEXTBYTE(); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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changeset
|
269 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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270 // 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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271 // 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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272 while (CURBYTE()) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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273 { |
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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 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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275 lw_expr_term_t *term; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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276 |
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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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|
277 // 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
|
278 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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279 rp -> next = s -> incompletes; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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280 s -> incompletes = rp; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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281 rp -> offset = 0; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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|
282 rp -> expr = lw_expr_stack_create(); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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283 rp -> flags = RELOC_NORM; |
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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|
284 |
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
|
285 // 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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parents:
diff
changeset
|
286 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
changeset
|
287 { |
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 int tt = CURBYTE(); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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289 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
|
290 switch (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
changeset
|
291 { |
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
|
292 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
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|
293 // 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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294 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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295 rp -> flags = 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
changeset
|
296 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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297 term = NULL; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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298 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
|
299 |
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
|
300 case 0x01: |
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
|
301 // 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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changeset
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302 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
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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diff
changeset
|
304 tt |= 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
changeset
|
305 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
|
306 // 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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307 if (tt > 0x7fff) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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|
308 tt -= 0x10000; |
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 term = lw_expr_term_create_int(tt); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff
changeset
|
310 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
|
311 |
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
|
312 case 0x02: |
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
|
313 // external symbol reference |
2
7317fbe024af
Clean up insane number of compiler warnings under -Wall
lost@l-w.ca
parents:
0
diff
changeset
|
314 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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parents:
diff
changeset
|
315 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
|
316 |
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
|
317 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
|
318 // internal symbol reference |
2
7317fbe024af
Clean up insane number of compiler warnings under -Wall
lost@l-w.ca
parents:
0
diff
changeset
|
319 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
lost@l-w.ca
parents:
diff
changeset
|
320 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
|
321 |
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
|
322 case 0x04: |
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
|
323 // operator |
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
|
324 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
changeset
|
325 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
|
326 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
|
327 |
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 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
changeset
|
329 // 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
|
330 // the section base address |
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 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
lost@l-w.ca
parents:
diff
changeset
|
332 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
|
333 |
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
|
334 default: |
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
|
335 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
lost@l-w.ca
parents:
diff
changeset
|
336 exit(1); |
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
|
337 } |
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
|
338 if (term) |
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
|
339 { |
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
|
340 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
lost@l-w.ca
parents:
diff
changeset
|
341 lw_expr_term_free(term); |
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 } |
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 } |
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 // 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
|
345 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
|
346 |
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
|
347 // 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
parents:
diff
changeset
|
348 rp -> offset = 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
|
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 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
|
351 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
|
352 } |
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 // 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
|
354 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
|
355 |
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 // 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
|
357 // 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
|
358 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
|
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 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
|
361 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
|
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 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
|
364 |
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 // 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
|
366 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
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367 { |
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368 int i; |
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369 for (i = 0; i < s -> codesize; i++) |
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370 NEXTBYTE(); |
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371 } |
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372 } |
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373 } |
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374 |
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375 /* |
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376 Read an archive file - this will create a "sub" record and farm out the |
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377 parsing of the sub files to the regular file parsers |
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378 |
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379 The archive file format consists of the 6 byte magic number followed by a |
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380 series of records as follows: |
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381 |
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382 - NUL terminated file name |
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383 - 32 bit file length in big endian order |
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384 - the file data |
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385 |
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386 An empty file name indicates the end of the file. |
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387 |
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388 */ |
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389 void read_lwar1v(fileinfo_t *fn) |
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390 { |
386
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Port remainder of tools to Windows
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391 int cc = 6; |
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392 int flen; |
0
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393 unsigned long l; |
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394 for (;;) |
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395 { |
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396 if (cc >= fn -> filesize || !(fn -> filedata[cc])) |
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397 return; |
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398 |
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399 for (l = cc; cc < fn -> filesize && fn -> filedata[cc]; cc++) |
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400 /* do nothing */ ; |
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401 |
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402 cc++; |
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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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403 |
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404 if (cc >= fn -> filesize) |
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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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405 { |
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406 fprintf(stderr, "Malformed archive file %s.\n", fn -> filename); |
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407 exit(1); |
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408 } |
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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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409 |
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410 if (cc + 4 > fn -> filesize) |
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411 return; |
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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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412 |
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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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413 flen = (fn -> filedata[cc++] << 24); |
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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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414 flen |= (fn -> filedata[cc++] << 16); |
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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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415 flen |= (fn -> filedata[cc++] << 8); |
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416 flen |= (fn -> filedata[cc++]); |
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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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417 |
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418 if (flen == 0) |
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419 return; |
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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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420 |
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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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421 if (cc + flen > fn -> filesize) |
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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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422 { |
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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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423 fprintf(stderr, "Malformed archive file %s.\n", fn -> filename); |
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424 exit(1); |
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425 } |
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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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426 |
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427 // add the "sub" input file |
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428 fn -> subs = lw_realloc(fn -> subs, sizeof(fileinfo_t *) * (fn -> nsubs + 1)); |
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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429 fn -> subs[fn -> nsubs] = lw_alloc(sizeof(fileinfo_t)); |
0
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430 memset(fn -> subs[fn -> nsubs], 0, sizeof(fileinfo_t)); |
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431 fn -> subs[fn -> nsubs] -> filedata = fn -> filedata + cc; |
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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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432 fn -> subs[fn -> nsubs] -> filesize = flen; |
2
7317fbe024af
Clean up insane number of compiler warnings under -Wall
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433 fn -> subs[fn -> nsubs] -> filename = lw_strdup((char *)(fn -> filedata + l)); |
0
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434 fn -> subs[fn -> nsubs] -> parent = fn; |
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435 fn -> subs[fn -> nsubs] -> forced = fn -> forced; |
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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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436 read_file(fn -> subs[fn -> nsubs]); |
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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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437 fn -> nsubs++; |
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438 cc += flen; |
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439 } |
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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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440 } |