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annotate lwlink/readfiles.c @ 530:65c2085e0398

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Don't rely on undefined memory before start of instab When encountering a symbol on a line by itself, cl->insn was used to index into the instab array. Unfortunately, in that case, cl->insn will be -1 which will refer to memory before the start of instab. Depending on the compiler and linker, that could be anything. This would only have a visible effect on the OS9 target which has separate data and code address counters. On other targets, the two counters are kept in sync. This patch should short circuit that unfortunate code issue.
author William Astle <lost@l-w.ca>
date Wed, 09 Mar 2022 15:56:03 -0700
parents fda62f676ed4
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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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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 char *sfn;
0
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74 int s;
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75 int j;
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76
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77 f = NULL;
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78
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79 if (inputfiles[i] -> filename[0] == ':')
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80 {
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81 // : suppresses the libfoo.a behaviour
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82 sfn = lw_strdup(inputfiles[i] -> filename + 1);
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83 }
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84 else
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85 {
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86 sfn = lw_alloc(strlen(inputfiles[i] -> filename) + 6);
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87 sprintf(sfn, "lib%s.a", inputfiles[i] -> filename);
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88 }
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89
0
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90 for (j = 0; j < nlibdirs; j++)
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91 {
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92 if (libdirs[j][0] == '=')
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93 {
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94 // handle sysroot
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95 s = strlen(libdirs[j]) + 2 + strlen(sysroot) + strlen(sfn);
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96 tf = lw_alloc(s + 1);
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97 sprintf(tf, "%s/%s/%s", sysroot, libdirs[j] + 1, sfn);
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98 }
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99 else
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100 {
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101 s = strlen(libdirs[j]) + 1 + strlen(sfn);
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102 tf = lw_alloc(s + 1);
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103 sprintf(tf, "%s/%s", libdirs[j], sfn);
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104 }
0
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105 f = fopen(tf, "rb");
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106 if (!f)
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107 {
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108 free(tf);
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109 continue;
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110 }
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111 free(tf);
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112 break;
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113 }
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114 free(sfn);
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115 if (!f)
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116 {
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117 fprintf(stderr, "Can't open library: -l%s\n", inputfiles[i] -> filename);
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118 exit(1);
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119 }
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120 }
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121 else
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122 {
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123 f = fopen(inputfiles[i] -> filename, "rb");
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124 if (!f)
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125 {
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126 fprintf(stderr, "Can't open file %s:", inputfiles[i] -> filename);
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127 perror("");
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128 exit(1);
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129 }
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130 }
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131 fseek(f, 0, SEEK_END);
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132 size = ftell(f);
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133 rewind(f);
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134
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135 inputfiles[i] -> filedata = lw_alloc(size);
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136 inputfiles[i] -> filesize = size;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
137
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
138 bread = fread(inputfiles[i] -> filedata, 1, size, f);
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
139 if (bread < size)
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
140 {
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
141 fprintf(stderr, "Short read on file %s (%ld/%ld):", inputfiles[i] -> filename, bread, size);
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
142 perror("");
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
143 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
144 }
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
145
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
146 fclose(f);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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147
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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148 read_file(inputfiles[i]);
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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149 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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150 }
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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151
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
152 // this macro is used to bail out if we run off the end of the file data
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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153 // while parsing - it keeps the code below cleaner
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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154 #define NEXTBYTE() do { cc++; if (cc > fn -> filesize) { fprintf(stderr, "%s: invalid file format\n", fn -> filename); exit(1); } } while (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
155 // this macro is used to refer to the current byte in the stream
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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156 #define CURBYTE() (fn -> filedata[cc < fn -> filesize ? cc : fn -> filesize - 1])
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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157 // this one will leave the input pointer past the trailing NUL
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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158 #define CURSTR() read_lwobj16v0_str(&cc, fn)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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159 unsigned char *read_lwobj16v0_str(long *cc1, fileinfo_t *fn)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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160 {
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
161 int cc = *cc1;
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
162 unsigned char *fp;
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
163 fp = &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
164 while (CURBYTE())
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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165 NEXTBYTE();
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
166 NEXTBYTE();
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
167 *cc1 = cc;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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168 return fp;
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
169 }
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
170 // the function below can be switched to dealing with data coming from a
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
171 // source other than an in-memory byte pool by adjusting the input data
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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172 // in "fn" and the above two macros
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
173
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
174 void read_lwobj16v0(fileinfo_t *fn)
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
175 {
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
176 unsigned char *fp;
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
177 long cc;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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178 section_t *s;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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179 int val;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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180 symtab_t *se;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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181
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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182 // start reading *after* the magic number
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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183 cc = 8;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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184
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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185 // init data
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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186 fn -> sections = NULL;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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187 fn -> nsections = 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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188
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
189 while (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
190 {
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
191 // 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
192 // bail out if no more sections
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
193 if (!(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
194 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
195
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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196 fp = CURSTR();
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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197
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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198 // we now have a section name in 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
199 // create new section entry
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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200 fn -> sections = lw_realloc(fn -> sections, sizeof(section_t) * (fn -> nsections + 1));
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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201 s = &(fn -> sections[fn -> nsections]);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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202 fn -> nsections += 1;
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
203
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
204 s -> localsyms = NULL;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
205 s -> flags = 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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206 s -> codesize = 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
207 s -> name = 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
208 s -> loadaddress = 0;
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
209 s -> localsyms = NULL;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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210 s -> exportedsyms = NULL;
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
211 s -> incompletes = NULL;
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
212 s -> processed = 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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213 s -> file = fn;
236
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 179
diff changeset
214 s -> afterbytes = NULL;
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 179
diff changeset
215 s -> aftersize = 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 changeset
216
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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217 // read flags
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
218 while (CURBYTE())
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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219 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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220 switch (CURBYTE())
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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221 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
222 case 0x01:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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223 s -> flags |= SECTION_BSS;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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224 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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225
156
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
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diff changeset
226 case 0x02:
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
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diff changeset
227 s -> flags |= SECTION_CONST;
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
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diff changeset
228 break;
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
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diff changeset
229
0
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
230 default:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
231 fprintf(stderr, "%s (%s): unrecognized section flag %02X\n", fn -> filename, s -> name, (int)(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
232 exit(1);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
233 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
234 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
235 }
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
236 // skip NUL terminating flags
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
237 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
238
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
239 // now parse the local symbol table
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
240 while (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
241 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
242 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 changeset
243
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 // 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 changeset
245 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 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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diff changeset
247 val |= (CURBYTE());
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
248 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
249 // 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 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 // 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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diff changeset
252 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
lost@l-w.ca
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diff changeset
253 se -> next = s -> localsyms;
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
254 s -> localsyms = se;
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
255 se -> sym = fp;
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
256 se -> offset = val;
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
257 }
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
258 // skip terminating 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
259 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
260
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
261 // now parse the exported symbol table
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
262 while (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
263 {
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
264 fp = CURSTR();
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
265
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
266 // fp is the symbol name
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
267 val = (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
268 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
269 val |= (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
270 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
271 // val is now the symbol value
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
272
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
273 // 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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diff changeset
274 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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parents:
diff changeset
275 se -> next = s -> exportedsyms;
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
276 s -> exportedsyms = se;
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
277 se -> sym = fp;
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
278 se -> offset = val;
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
279 }
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
280 // skip terminating 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
281 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
282
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
283 // 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
lost@l-w.ca
parents:
diff changeset
284 // external references that need resolution
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
285 while (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
286 {
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
287 reloc_t *rp;
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
288 lw_expr_term_t *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
289
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
290 // 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
lost@l-w.ca
parents: 2
diff changeset
291 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
lost@l-w.ca
parents:
diff changeset
292 rp -> next = s -> incompletes;
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
293 s -> incompletes = rp;
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
294 rp -> offset = 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
295 rp -> expr = lw_expr_stack_create();
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
296 rp -> flags = RELOC_NORM;
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
297
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
298 // parse the expression
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
299 while (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
300 {
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
301 int tt = 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
302 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
303 switch (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
304 {
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
305 case 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
306 // a flag specifier
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
307 tt = 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
308 rp -> flags = 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
309 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
310 term = NULL;
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 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
312
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
313 case 0x01:
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
314 // 16 bit integer
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
315 tt = 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
316 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
317 tt |= 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
318 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
319 // normalize for negatives...
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 if (tt > 0x7fff)
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 tt -= 0x10000;
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 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
lost@l-w.ca
parents:
diff changeset
323 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
324
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 case 0x02:
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
326 // external symbol reference
2
7317fbe024af Clean up insane number of compiler warnings under -Wall
lost@l-w.ca
parents: 0
diff changeset
327 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
lost@l-w.ca
parents:
diff changeset
328 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
329
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 case 0x03:
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 // internal symbol reference
2
7317fbe024af Clean up insane number of compiler warnings under -Wall
lost@l-w.ca
parents: 0
diff changeset
332 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
333 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
334
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 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
336 // 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
337 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
lost@l-w.ca
parents:
diff changeset
338 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
339 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
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 case 0x05:
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 // 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
343 // 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
344 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
345 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
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 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
348 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
349 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
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 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
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 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
354 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
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 }
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 // 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
358 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
359
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 // 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
361 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
362 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
363 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
364 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
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 // 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
367 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
368
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
369 // 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
370 // 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
371 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
372 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
373 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
374 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
375
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
376 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
377
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
378 // 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
379 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
380 {
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
381 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
382 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
383 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
384 }
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
385 }
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
386 }
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
387
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
388 /*
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
389 Read an archive file - this will create a "sub" record and farm out the
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
390 parsing of the sub files to the regular file parsers
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
391
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
392 The archive file format consists of the 6 byte magic number followed by a
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
393 series of records as follows:
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
394
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
395 - NUL terminated file name
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
396 - 32 bit file length in big endian order
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
397 - the file data
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
398
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
399 An empty file name indicates the end of 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
400
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
401 */
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
402 void read_lwar1v(fileinfo_t *fn)
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
403 {
386
221b5f58d8ad Port remainder of tools to Windows
William Astle <lost@l-w.ca>
parents: 236
diff changeset
404 int cc = 6;
221b5f58d8ad Port remainder of tools to Windows
William Astle <lost@l-w.ca>
parents: 236
diff changeset
405 int flen;
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
406 unsigned long l;
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
407 for (;;)
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
408 {
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
409 if (cc >= fn -> filesize || !(fn -> filedata[cc]))
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
410 return;
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
411
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
412 for (l = cc; cc < fn -> filesize && fn -> filedata[cc]; cc++)
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
413 /* do nothing */ ;
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
414
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
415 cc++;
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
416
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
417 if (cc >= fn -> filesize)
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
418 {
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
419 fprintf(stderr, "Malformed archive file %s.\n", fn -> filename);
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
420 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
421 }
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
422
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
423 if (cc + 4 > fn -> filesize)
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
424 return;
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
425
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
426 flen = (fn -> filedata[cc++] << 24);
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
427 flen |= (fn -> filedata[cc++] << 16);
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
428 flen |= (fn -> filedata[cc++] << 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
429 flen |= (fn -> filedata[cc++]);
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
430
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
431 if (flen == 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
432 return;
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
433
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
434 if (cc + flen > fn -> filesize)
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
435 {
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
436 fprintf(stderr, "Malformed archive file %s.\n", fn -> filename);
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
437 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
438 }
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
439
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
440 // add the "sub" input 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
441 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
lost@l-w.ca
parents: 2
diff changeset
442 fn -> subs[fn -> nsubs] = lw_alloc(sizeof(fileinfo_t));
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
443 memset(fn -> subs[fn -> nsubs], 0, sizeof(fileinfo_t));
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
444 fn -> subs[fn -> nsubs] -> filedata = fn -> filedata + cc;
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
445 fn -> subs[fn -> nsubs] -> filesize = flen;
2
7317fbe024af Clean up insane number of compiler warnings under -Wall
lost@l-w.ca
parents: 0
diff changeset
446 fn -> subs[fn -> nsubs] -> filename = lw_strdup((char *)(fn -> filedata + l));
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
447 fn -> subs[fn -> nsubs] -> parent = fn;
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
448 fn -> subs[fn -> nsubs] -> forced = fn -> forced;
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
449 read_file(fn -> subs[fn -> nsubs]);
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
450 fn -> nsubs++;
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
451 cc += flen;
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
452 }
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
453 }