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annotate lwlink/script.c @ 234:d389adbcc4ab

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Added section base and length symbols to lwlink Added the ability for a link script to define section base and section length symbols when linking. These symbols are searched for when an external reference is resolved before looking up any symbols in the various objects being linked. Also documented the new link script directives and added such directives to all default link scripts.
author William Astle <lost@l-w.ca>
date Fri, 10 Aug 2012 23:47:56 -0600
parents c6a38fd8bd33
children ce1fdc8d6568
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 script.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 Read and parse linker scripts
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22 */
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23
2
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24 #include <ctype.h>
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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 // the built-in OS9 script
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36 // the 000D bit is to handle the module header!
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37 static char *os9_script =
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38 "define basesympat s_%s\n"
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39 "define lensympat l_%s\n"
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40 "section code load 000D\n"
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41 "section .text\n"
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42 "section data\n"
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43 "section .data\n"
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44 "section bss,bss load 0000\n"
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45 "section .bss,bss\n"
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46 "entry __start\n"
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47 ;
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48
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49 // the built-in DECB target linker script
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50 static char *decb_script =
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51 "define basesympat s_%s\n"
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52 "define lensympat l_%s\n"
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53 "section init load 2000\n"
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54 "section code\n"
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55 "section *,!bss\n"
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56 "section *,bss\n"
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57 "entry 2000\n"
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58 ;
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59
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60 // the built-in RAW target linker script
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61 static char *raw_script =
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62 "define basesympat s_%s\n"
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63 "define lensympat l_%s\n"
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64 "section init load 0000\n"
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65 "section code\n"
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66 "section *,!bss\n"
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67 "section *,bss\n"
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68 ;
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69
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70 static char *lwex0_script =
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71 "define basesympat s_%s\n"
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72 "define lensympat l_%s\n"
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73 "section init load 0100\n"
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74 "section .text\n"
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75 "section .data\n"
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76 "section .ctors_start\n"
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77 "section .ctors\n"
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78 "section .ctors_end\n"
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79 "section .dtors_start\n"
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80 "section .dtors\n"
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81 "section .dtors_end\n"
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82 "section *,!bss\n"
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83 "section *,bss\n"
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84 "entry __start\n"
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85 "stacksize 0100\n" // default 256 byte stack
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86 ;
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87
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88 // the "simple" script
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89 static char *simple_script =
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90 "define basesympat s_%s\n"
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91 "define lensympat l_%s\n"
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92 "section *,!bss\n"
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93 "section *,bss\n"
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94 ;
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95
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96 linkscript_t linkscript = { 0, NULL, -1 };
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97
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98 void setup_script()
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99 {
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100 char *script, *oscript;
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101 long size;
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102
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103 // read the file if needed
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104 if (scriptfile)
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105 {
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106 FILE *f;
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107 long bread;
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108
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109 f = fopen(scriptfile, "rb");
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110 if (!f)
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111 {
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112 fprintf(stderr, "Can't open file %s:", scriptfile);
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113 perror("");
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114 exit(1);
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115 }
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116 fseek(f, 0, SEEK_END);
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117 size = ftell(f);
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118 rewind(f);
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119
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120 script = lw_alloc(size + 2);
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121
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122 bread = fread(script, 1, size, f);
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123 if (bread < size)
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124 {
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125 fprintf(stderr, "Short read on file %s (%ld/%ld):", scriptfile, bread, size);
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126 perror("");
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127 exit(1);
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128 }
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129 fclose(f);
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130
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131 script[size] = '\n';
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132 script[size + 1] = '\0';
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133 }
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134 else
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135 {
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136 // fetch defaults based on output mode
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137 switch (outformat)
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138 {
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139 case OUTPUT_RAW:
2c24602be78f 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 script = raw_script;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
141 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
142
2c24602be78f 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 case OUTPUT_DECB:
2c24602be78f 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 script = decb_script;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
145 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
146
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
147 case OUTPUT_LWEX0:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
148 script = lwex0_script;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
149 break;
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 78
diff changeset
150
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 78
diff changeset
151 case OUTPUT_OS9:
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 78
diff changeset
152 script = os9_script;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 78
diff changeset
153 break;
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
154
2c24602be78f 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 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
156 script = simple_script;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
157 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
158 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
159
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
160 size = strlen(script);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
161 if (nscriptls)
2c24602be78f 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 {
2c24602be78f 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 char *rscript;
2c24602be78f 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 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
165 // prepend the "extra" script lines
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
166 for (i = 0; i < nscriptls; 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
167 size += strlen(scriptls[i]) + 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
168
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
169 rscript = lw_alloc(size + 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
170 oscript = rscript;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
171 for (i = 0; i < nscriptls; 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
172 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
173 oscript += sprintf(oscript, "%s\n", scriptls[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
174 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
175 strcpy(oscript, script);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
176 script = rscript;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
177 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
178 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
179
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
180 if (outformat == OUTPUT_LWEX0)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
181 linkscript.stacksize = 0x100;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
182
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 78
diff changeset
183 if (outformat == OUTPUT_OS9)
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 78
diff changeset
184 {
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 78
diff changeset
185 linkscript.modtype = 0x01;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 78
diff changeset
186 linkscript.modlang = 0x01;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 78
diff changeset
187 linkscript.modattr = 0x08;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 78
diff changeset
188 linkscript.modrev = 0x00;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 78
diff changeset
189 linkscript.name = NULL;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 78
diff changeset
190 }
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 78
diff changeset
191
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
192 oscript = script;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
193 // now parse the script 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
194 while (*script)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
195 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
196 char *ptr, *ptr2, *line;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
197
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
198 for (ptr = script; *ptr && *ptr != '\n' && *ptr != '\r'; ptr++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
199 /* 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
200
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
201 line = lw_alloc(ptr - script + 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
202 memcpy(line, script, ptr - script);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
203 line[ptr - script] = '\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
204
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
205 // skip line terms
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
206 for (script = ptr + 1; *script == '\n' || *script == '\r'; script++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
207 /* 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
208
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
209 // ignore leading whitespace
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
210 for (ptr = line; *ptr && isspace(*ptr); ptr++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
211 /* 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
212
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
213 // ignore blank lines
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
214 if (!*ptr)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
215 continue;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
216
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
217 for (ptr = line; *ptr && !isspace(*ptr); ptr++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
218 /* 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
219
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
220 // now ptr points to the char past the first word
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
221 // NUL it out
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
222 if (*ptr)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
223 *ptr++ = '\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
224
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
225 // skip spaces after the first word
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
226 for ( ; *ptr && isspace(*ptr); ptr++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
227 /* 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
228
234
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 183
diff changeset
229 if (!strcmp(line, "define"))
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 183
diff changeset
230 {
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 183
diff changeset
231 // parse out the definition type
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 183
diff changeset
232 for (ptr2 = ptr; *ptr2 && !isspace(*ptr2); ptr2++)
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 183
diff changeset
233 /* do nothing */ ;
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 183
diff changeset
234
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 183
diff changeset
235 if (*ptr2)
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 183
diff changeset
236 *ptr2++ = '\0';
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 183
diff changeset
237
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 183
diff changeset
238 while (*ptr2 && isspace(*ptr2))
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 183
diff changeset
239 ptr2++;
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 183
diff changeset
240
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 183
diff changeset
241 // now ptr points to the define type
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 183
diff changeset
242 if (!strcmp(ptr, "basesympat"))
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 183
diff changeset
243 {
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 183
diff changeset
244 /* section base symbol pattern */
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 183
diff changeset
245 lw_free(linkscript.basesympat);
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 183
diff changeset
246 linkscript.basesympat = lw_strdup(ptr2);
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 183
diff changeset
247 }
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 183
diff changeset
248 else if (!strcmp(ptr, "lensympat"))
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 183
diff changeset
249 {
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 183
diff changeset
250 /* section length symbol pattern */
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 183
diff changeset
251 lw_free(linkscript.lensympat);
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 183
diff changeset
252 linkscript.lensympat = lw_strdup(ptr2);
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 183
diff changeset
253 }
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 183
diff changeset
254 else
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 183
diff changeset
255 {
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 183
diff changeset
256 fprintf(stderr, "%s: bad script line: %s\n", scriptfile, line);
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 183
diff changeset
257 exit(1);
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 183
diff changeset
258 }
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 183
diff changeset
259 }
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 183
diff changeset
260 else if (!strcmp(line, "pad"))
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
261 {
2c24602be78f 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 // padding
2c24602be78f 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 // parse the hex number and stow it
2c24602be78f 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 linkscript.padsize = strtol(ptr, NULL, 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
265 if (linkscript.padsize < 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
266 linkscript.padsize = 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
267 }
2c24602be78f 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 else if (!strcmp(line, "stacksize"))
2c24602be78f 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 {
2c24602be78f 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 // stack size for targets that support it
2c24602be78f 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 // parse the hex number and stow it
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
272 linkscript.padsize = strtol(ptr, NULL, 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
273 if (linkscript.stacksize < 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
274 linkscript.stacksize = 0x100;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
275 }
2c24602be78f 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 else if (!strcmp(line, "entry"))
2c24602be78f 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 {
2c24602be78f 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 int eaddr;
2c24602be78f 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 eaddr = strtol(ptr, &ptr2, 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
281 if (*ptr2)
2c24602be78f 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 linkscript.execaddr = -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
284 linkscript.execsym = lw_strdup(ptr);
2c24602be78f 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 }
2c24602be78f 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 else
2c24602be78f 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 {
2c24602be78f 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 linkscript.execaddr = eaddr;
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
289 linkscript.execsym = NULL;
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 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
291 }
2c24602be78f 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 else if (!strcmp(line, "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
293 {
2c24602be78f 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 // section
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
295 // parse out the section name and 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
296 for (ptr2 = ptr; *ptr2 && !isspace(*ptr2); ptr2++)
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
297 /* do nothing */ ;
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
298
2c24602be78f 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 if (*ptr2)
2c24602be78f 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 *ptr2++ = '\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
301
2c24602be78f 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 while (*ptr2 && isspace(*ptr2))
2c24602be78f 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 ptr2++;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff changeset
304
2c24602be78f 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 // ptr now points to the section name and flags and ptr2
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 // to the first non-space character following
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
307
2c24602be78f 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 // then look for "load <addr>" clause
2c24602be78f 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 if (*ptr2)
2c24602be78f 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 {
2c24602be78f 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 if (!strncmp(ptr2, "load", 4))
2c24602be78f 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 ptr2 += 4;
2c24602be78f 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 while (*ptr2 && isspace(*ptr2))
2c24602be78f 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 ptr2++;
2c24602be78f 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 }
2c24602be78f 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 else
2c24602be78f 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 {
2c24602be78f 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 fprintf(stderr, "%s: bad script\n", scriptfile);
2c24602be78f 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 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
322 }
2c24602be78f 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 }
2c24602be78f 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 // now ptr2 points to the load address if there is one
2c24602be78f 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 // or NUL if not
2c24602be78f 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 linkscript.lines = lw_realloc(linkscript.lines, sizeof(struct scriptline_s) * (linkscript.nlines + 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
328
2c24602be78f 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 linkscript.lines[linkscript.nlines].noflags = 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
330 linkscript.lines[linkscript.nlines].yesflags = 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
331 if (*ptr2)
2c24602be78f 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 linkscript.lines[linkscript.nlines].loadat = strtol(ptr2, NULL, 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
333 else
2c24602be78f 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 linkscript.lines[linkscript.nlines].loadat = -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
335 for (ptr2 = ptr; *ptr2 && *ptr2 != ','; ptr2++)
2c24602be78f 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 /* 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
337 if (*ptr2)
2c24602be78f 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 {
2c24602be78f 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 *ptr2++ = '\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
340 if (!strcmp(ptr2, "!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
341 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
342 linkscript.lines[linkscript.nlines].noflags = 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
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 else if (!strcmp(ptr2, "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
345 {
2c24602be78f 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 linkscript.lines[linkscript.nlines].yesflags = 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
347 }
2c24602be78f 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 else
2c24602be78f 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 {
2c24602be78f 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 fprintf(stderr, "%s: bad script\n", scriptfile);
2c24602be78f 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 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
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 }
2c24602be78f 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 if (ptr[0] == '*' && ptr[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
355 linkscript.lines[linkscript.nlines].sectname = 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
356 else
2c24602be78f 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 linkscript.lines[linkscript.nlines].sectname = lw_strdup(ptr);
2c24602be78f 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 linkscript.nlines++;
2c24602be78f 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 else
2c24602be78f 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 {
67
554831f03338 Make lwlink more verbose about unrecognized linkscript lines
lost@l-w.ca
parents: 8
diff changeset
362 fprintf(stderr, "%s: bad script line: %s\n", scriptfile, line);
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
363 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
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 lw_free(line);
2c24602be78f 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 }
2c24602be78f 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
2c24602be78f 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 if (scriptfile || nscriptls)
2c24602be78f 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 lw_free(oscript);
183
c6a38fd8bd33 Added --entry option for lwlink
lost@l-w.ca
parents: 151
diff changeset
370
c6a38fd8bd33 Added --entry option for lwlink
lost@l-w.ca
parents: 151
diff changeset
371 if (entrysym)
c6a38fd8bd33 Added --entry option for lwlink
lost@l-w.ca
parents: 151
diff changeset
372 {
c6a38fd8bd33 Added --entry option for lwlink
lost@l-w.ca
parents: 151
diff changeset
373 int eaddr;
c6a38fd8bd33 Added --entry option for lwlink
lost@l-w.ca
parents: 151
diff changeset
374 char *ptr2;
c6a38fd8bd33 Added --entry option for lwlink
lost@l-w.ca
parents: 151
diff changeset
375
c6a38fd8bd33 Added --entry option for lwlink
lost@l-w.ca
parents: 151
diff changeset
376 lw_free(linkscript.execsym);
c6a38fd8bd33 Added --entry option for lwlink
lost@l-w.ca
parents: 151
diff changeset
377
c6a38fd8bd33 Added --entry option for lwlink
lost@l-w.ca
parents: 151
diff changeset
378 eaddr = strtol(entrysym, &ptr2, 0);
c6a38fd8bd33 Added --entry option for lwlink
lost@l-w.ca
parents: 151
diff changeset
379 if (*ptr2)
c6a38fd8bd33 Added --entry option for lwlink
lost@l-w.ca
parents: 151
diff changeset
380 {
c6a38fd8bd33 Added --entry option for lwlink
lost@l-w.ca
parents: 151
diff changeset
381 linkscript.execaddr = -1;
c6a38fd8bd33 Added --entry option for lwlink
lost@l-w.ca
parents: 151
diff changeset
382 linkscript.execsym = lw_strdup(entrysym);
c6a38fd8bd33 Added --entry option for lwlink
lost@l-w.ca
parents: 151
diff changeset
383 }
c6a38fd8bd33 Added --entry option for lwlink
lost@l-w.ca
parents: 151
diff changeset
384 else
c6a38fd8bd33 Added --entry option for lwlink
lost@l-w.ca
parents: 151
diff changeset
385 {
c6a38fd8bd33 Added --entry option for lwlink
lost@l-w.ca
parents: 151
diff changeset
386 linkscript.execaddr = eaddr;
c6a38fd8bd33 Added --entry option for lwlink
lost@l-w.ca
parents: 151
diff changeset
387 linkscript.execsym = NULL;
c6a38fd8bd33 Added --entry option for lwlink
lost@l-w.ca
parents: 151
diff changeset
388 }
c6a38fd8bd33 Added --entry option for lwlink
lost@l-w.ca
parents: 151
diff changeset
389
c6a38fd8bd33 Added --entry option for lwlink
lost@l-w.ca
parents: 151
diff changeset
390 }
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
391 }