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annotate lwlink/link.c @ 316:c4853a54b4a1

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Documented new "high" option for link scripts.
author William Astle <lost@l-w.ca>
date Wed, 27 Nov 2013 16:08:02 -0700
parents fcd103148aa6
children 6821f4855702
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1 /*
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2 link.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 Resolve section and symbol addresses; handle incomplete references
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22 */
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23
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24 #include <stdio.h>
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25 #include <stdlib.h>
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26 #include <string.h>
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27
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28 #include <lw_alloc.h>
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29 #include <lw_string.h>
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30
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31 #include "expr.h"
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32 #include "lwlink.h"
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33
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34 void check_os9(void);
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35
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36 struct section_list *sectlist = NULL;
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37 int nsects = 0;
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38 static int nforced = 0;
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39 static int resolveonly = 0;
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40
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41 int quietsym = 1;
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42
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43 symlist_t *symlist = NULL;
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44
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45 sectopt_t *section_opts = NULL;
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46
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47 void check_section_name(char *name, int *base, fileinfo_t *fn, int down)
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48 {
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49 int sn;
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50 // fprintf(stderr, "Considering sections in %s (%d) for %s\n", fn -> filename, fn -> forced, name);
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51 if (fn -> forced == 0)
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52 return;
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53
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54 for (sn = 0; sn < fn -> nsections; sn++)
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55 {
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56 // fprintf(stderr, " Considering section %s\n", fn -> sections[sn].name);
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57 if (!strcmp(name, (char *)(fn -> sections[sn].name)))
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58 {
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59 if (fn -> sections[sn].flags & SECTION_CONST)
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60 continue;
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61 // we have a match
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62 // fprintf(stderr, " Found\n");
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63 sectlist = lw_realloc(sectlist, sizeof(struct section_list) * (nsects + 1));
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64 sectlist[nsects].ptr = &(fn -> sections[sn]);
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65
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66 fn -> sections[sn].processed = 1;
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67 if (down)
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68 {
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69 *base -= fn -> sections[sn].codesize;
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70 fn -> sections[sn].loadaddress = *base;
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71 }
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72 else
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73 {
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74 fn -> sections[sn].loadaddress = *base;
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75 *base += fn -> sections[sn].codesize;
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76 }
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77 nsects++;
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78 // fprintf(stderr, "Adding section %s (%s)\n",fn -> sections[sn].name, fn -> filename);
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79 }
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80 }
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81 for (sn = 0; sn < fn -> nsubs; sn++)
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82 {
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83 check_section_name(name, base, fn -> subs[sn], down);
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84 }
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85 }
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86
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87 void add_matching_sections(char *name, int yesflags, int noflags, int *base, int down);
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88 void check_section_flags(int yesflags, int noflags, int *base, fileinfo_t *fn, int down)
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89 {
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90 int sn;
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91 sectopt_t *so;
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92
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93 // fprintf(stderr, "Considering sections in %s (%d) for %x/%x\n", fn -> filename, fn -> forced, yesflags, noflags);
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94
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95 if (fn -> forced == 0)
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96 return;
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97
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98 for (sn = 0; sn < fn -> nsections; sn++)
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99 {
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100 // ignore "constant" sections - they're added during the file resolve stage
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101 if (fn -> sections[sn].flags & SECTION_CONST)
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102 continue;
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103 // ignore if the noflags tell us to
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104 if (noflags && (fn -> sections[sn].flags & noflags))
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105 continue;
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106 // ignore unless the yesflags tell us not to
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107 if (yesflags && ((fn -> sections[sn].flags & yesflags) == 0))
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108 continue;
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109 // ignore it if already processed
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110 if (fn -> sections[sn].processed)
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111 continue;
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112
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113 // we have a match - now collect *all* sections of the same name!
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114 // fprintf(stderr, " Found\n");
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115 add_matching_sections((char *)(fn -> sections[sn].name), 0, 0, base, down);
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116
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117 /* handle "after padding" */
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118 for (so = section_opts; so; so = so -> next)
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119 if (!strcmp(so -> name, (char *)(fn -> sections[sn].name)))
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120 break;
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121 if (so)
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122 {
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123 if (so -> aftersize)
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124 {
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125 sectlist[nsects - 1].ptr -> afterbytes = so -> afterbytes;
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126 sectlist[nsects - 1].ptr -> aftersize = so -> aftersize;
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127 if (down)
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128 {
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129 sectlist[nsects - 1].ptr -> loadaddress -= so -> aftersize;
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130 *base -= so -> aftersize;
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131 }
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132 else
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133 {
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134 *base += so -> aftersize;
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135 }
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136 }
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137 }
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139 // and then continue looking for sections
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140 }
2c24602be78f 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 for (sn = 0; sn < fn -> nsubs; sn++)
2c24602be78f 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 {
315
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
143 check_section_flags(yesflags, noflags, base, fn -> subs[sn], down);
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
144 }
2c24602be78f 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 }
2c24602be78f 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
2c24602be78f 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
315
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
149 void add_matching_sections(char *name, int yesflags, int noflags, int *base, int down)
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
150 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
151 int 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
152 if (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
153 {
2c24602be78f 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 // named 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
155 // look for all instances of a section by the specified 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
156 // and resolve base addresses and add to the list
2c24602be78f 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 for (fn = 0; fn < ninputfiles; 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
158 {
315
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
159 check_section_name(name, base, inputfiles[fn], down);
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
160 }
2c24602be78f 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 }
2c24602be78f 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 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
163 {
2c24602be78f 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 // wildcard 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
165 // named 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
166 // look for all instances of a section by the specified 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
167 // and resolve base addresses and add to the list
2c24602be78f 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 for (fn = 0; fn < ninputfiles; 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
169 {
315
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
170 check_section_flags(yesflags, noflags, base, inputfiles[fn], down);
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
171 }
2c24602be78f 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 }
2c24602be78f 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 // work out section load order and resolve base addresses for each 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
176 // make a list of sections to load in 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
177 void resolve_sections(void)
2c24602be78f 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 int laddr = 0;
315
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
180 int growdown = 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
181 int ln, sn, fn;
236
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
182 sectopt_t *so;
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
183
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
184 for (ln = 0; ln < linkscript.nlines; ln++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
185 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
186 if (linkscript.lines[ln].loadat >= 0)
315
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
187 {
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
188 laddr = linkscript.lines[ln].loadat;
315
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
189 growdown = linkscript.lines[ln].growsdown;
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
190 }
238
91f91557dc9e Removed extraneous debug message.
William Astle <lost@l-w.ca>
parents: 236
diff changeset
191 //fprintf(stderr, "Adding section %s\n", linkscript.lines[ln].sectname);
315
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
192 add_matching_sections(linkscript.lines[ln].sectname, linkscript.lines[ln].yesflags, linkscript.lines[ln].noflags, &laddr, growdown);
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
193
2c24602be78f 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 if (linkscript.lines[ln].sectname)
2c24602be78f 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 {
236
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
196 char *sname = linkscript.lines[ln].sectname;
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
197 /* handle "after padding" */
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
198 for (so = section_opts; so; so = so -> next)
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
199 if (!strcmp(so -> name, sname))
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
200 break;
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
201 if (so)
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
202 {
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
203 if (so -> aftersize)
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
204 {
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
205 sectlist[nsects - 1].ptr -> afterbytes = so -> afterbytes;
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
206 sectlist[nsects - 1].ptr -> aftersize = so -> aftersize;
315
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
207 if (growdown)
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
208 {
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
209 sectlist[nsects-1].ptr -> loadaddress -= so -> aftersize;
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
210 laddr -= so -> aftersize;
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
211 }
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
212 else
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
213 {
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
214 laddr += so -> aftersize;
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
215 }
236
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
216 }
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
217 }
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
218 }
2c24602be78f 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 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
220 {
2c24602be78f 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 // wildcard 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
222 // look for all sections not yet processed that match 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
223
2c24602be78f 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 int f = 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
225 int fn0, sn0;
2c24602be78f 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 char *sname;
2c24602be78f 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
2c24602be78f 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 // named 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
229 // look for all instances of a section by the specified 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
230 // and resolve base addresses and add to the list
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
231 for (fn0 = 0; fn0 < ninputfiles; fn0++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
232 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
233 for (sn0 = 0; sn0 < inputfiles[fn0] -> nsections; sn0++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
234 {
156
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
235 // ignore "constant" sections
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
236 if (inputfiles[fn0] -> sections[sn0].flags & SECTION_CONST)
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
237 continue;
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
238 // ignore if the "no flags" bit says to
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
239 if (linkscript.lines[ln].noflags && (inputfiles[fn0] -> sections[sn0].flags & linkscript.lines[ln].noflags))
2c24602be78f 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 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
241 // ignore unless the yes flags tell us not to
2
7317fbe024af Clean up insane number of compiler warnings under -Wall
lost@l-w.ca
parents: 0
diff changeset
242 if (linkscript.lines[ln].yesflags && ((inputfiles[fn0] -> sections[sn0].flags & linkscript.lines[ln].yesflags) == 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
243 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
244 if (inputfiles[fn0] -> sections[sn0].processed == 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
245 {
2
7317fbe024af Clean up insane number of compiler warnings under -Wall
lost@l-w.ca
parents: 0
diff changeset
246 sname = (char *)(inputfiles[fn0] -> sections[sn0].name);
236
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
247 fprintf(stderr, "Adding sectoin %s\n", sname);
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
248 for (fn = 0; fn < ninputfiles; 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
249 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
250 for (sn = 0; sn < inputfiles[fn] -> nsections; sn++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
251 {
2
7317fbe024af Clean up insane number of compiler warnings under -Wall
lost@l-w.ca
parents: 0
diff changeset
252 if (!strcmp(sname, (char *)(inputfiles[fn] -> sections[sn].name)))
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
253 {
2c24602be78f 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 // we have a match
2c24602be78f 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 sectlist = lw_realloc(sectlist, sizeof(struct section_list) * (nsects + 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
256 sectlist[nsects].ptr = &(inputfiles[fn] -> sections[sn]);
2c24602be78f 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 inputfiles[fn] -> sections[sn].processed = 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
259 if (!f && linkscript.lines[ln].loadat >= 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
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 f = 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
262 sectlist[nsects].forceaddr = 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
263 laddr = linkscript.lines[ln].loadat;
315
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
264 growdown = linkscript.lines[ln].growsdown;
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
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 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
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 sectlist[nsects].forceaddr = 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
269 }
315
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
270 if (growdown)
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
271 {
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
272 laddr -= inputfiles[fn] -> sections[sn].codesize;
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
273 inputfiles[fn] -> sections[sn].loadaddress = laddr;
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
274 }
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
275 else
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
276 {
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
277 inputfiles[fn] -> sections[sn].loadaddress = laddr;
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
278 laddr += inputfiles[fn] -> sections[sn].codesize;
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
279 }
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
280 nsects++;
2c24602be78f 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 }
2c24602be78f 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 }
2c24602be78f 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 }
2c24602be78f 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 }
2c24602be78f 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 }
2c24602be78f 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 // theoretically, all the base addresses are set now
2c24602be78f 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
234
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
293 /* run through all sections and generate any synthetic symbols */
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
294 void generate_symbols(void)
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
295 {
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
296 int sn;
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
297 char *lastsect = NULL;
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
298 char sym[256];
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
299 int len;
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
300 symlist_t *se;
315
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
301 int lowaddr;
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
302
234
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
303 for (sn = 0; sn < nsects; sn++)
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
304 {
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
305 if (!lastsect || strcmp(lastsect, (char *)(sectlist[sn].ptr -> name)))
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
306 {
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
307 if (lastsect && linkscript.lensympat)
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
308 {
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
309 /* handle length symbol */
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
310 se = lw_alloc(sizeof(symlist_t));
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
311 se -> val = len;
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
312 snprintf(sym, 255, linkscript.lensympat, lastsect);
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
313 se -> sym = lw_strdup(sym);
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
314 se -> next = symlist;
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
315 symlist = se;
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
316 }
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
317 if (lastsect && linkscript.basesympat)
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
318 {
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
319 se = lw_alloc(sizeof(symlist_t));
315
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
320 se -> val = lowaddr;
234
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
321 snprintf(sym, 255, linkscript.basesympat, lastsect);
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
322 se -> sym = lw_strdup(sym);
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
323 se -> next = symlist;
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
324 symlist = se;
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
325 }
315
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
326 lastsect = (char *)(sectlist[sn].ptr -> name);
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
327 len = 0;
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
328 lowaddr = sectlist[sn].ptr -> loadaddress;
234
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
329 }
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
330 len += sectlist[sn].ptr -> codesize;
315
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
331 if (sectlist[sn].ptr -> loadaddress < lowaddr)
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
332 lowaddr = sectlist[sn].ptr -> loadaddress;
234
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
333 }
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
334 if (lastsect && linkscript.lensympat)
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
335 {
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
336 /* handle length symbol */
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
337 se = lw_alloc(sizeof(symlist_t));
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
338 se -> val = len;
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
339 snprintf(sym, 255, linkscript.lensympat, lastsect);
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
340 se -> sym = lw_strdup(sym);
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
341 se -> next = symlist;
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
342 symlist = se;
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
343 }
315
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
344 if (lastsect && linkscript.basesympat)
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
345 {
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
346 se = lw_alloc(sizeof(symlist_t));
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
347 se -> val = lowaddr;
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
348 snprintf(sym, 255, linkscript.basesympat, lastsect);
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
349 se -> sym = lw_strdup(sym);
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
350 se -> next = symlist;
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
351 symlist = se;
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
352 }
234
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
353 }
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
354
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 lw_expr_stack_t *find_external_sym_recurse(char *sym, 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
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 int sn;
2c24602be78f 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 lw_expr_stack_t *r;
2c24602be78f 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 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
360 symtab_t *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
361 int 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
362
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
363 for (sn = 0; sn < fn -> nsections; sn++)
2c24602be78f 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 for (se = fn -> sections[sn].exportedsyms; se; se = se -> next)
2c24602be78f 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 {
157
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
367 // fprintf(stderr, " Considering %s\n", se -> sym);
2
7317fbe024af Clean up insane number of compiler warnings under -Wall
lost@l-w.ca
parents: 0
diff changeset
368 if (!strcmp(sym, (char *)(se -> sym)))
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
369 {
157
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
370 // fprintf(stderr, " Match (%d)\n", fn -> sections[sn].processed);
156
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
371 // if the section was not previously processed and is CONSTANT, force it in
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
372 // otherwise error out if it is not being processed
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
373 if (fn -> sections[sn].processed == 0)
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
374 {
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
375 if (fn -> sections[sn].flags & SECTION_CONST)
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
376 {
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
377 // add to section list
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
378 sectlist = lw_realloc(sectlist, sizeof(struct section_list) * (nsects + 1));
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
379 sectlist[nsects].ptr = &(fn -> sections[sn]);
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
380 fn -> sections[sn].processed = 1;
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
381 fn -> sections[sn].loadaddress = 0;
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
382 nsects++;
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
383 }
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
384 else
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
385 {
157
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
386 if (resolveonly == 0)
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
387 {
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
388 fprintf(stderr, "Symbol %s found in section %s (%s) which is not going to be included\n", sym, fn -> sections[sn].name, fn -> filename);
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
389 continue;
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
390 }
156
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
391 }
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
392 }
155
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
393 // fprintf(stderr, "Found symbol %s in %s\n", sym, fn -> filename);
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
394 if (!(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
395 {
155
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
396 // fprintf(stderr, " Forced\n");
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
397 fn -> forced = 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
398 nforced = 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
399 }
156
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
400 if (fn -> sections[sn].flags & SECTION_CONST)
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
401 val = se -> offset;
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
402 else
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
403 val = se -> offset + fn -> sections[sn].loadaddress;
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
404 r = 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
405 term = lw_expr_term_create_int(val & 0xffff);
2c24602be78f 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 lw_expr_stack_push(r, 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
407 lw_expr_term_free(term);
156
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
408
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
409 return r;
2c24602be78f 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 }
2c24602be78f 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 }
2c24602be78f 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
2c24602be78f 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 for (sn = 0; sn < fn -> nsubs; sn++)
2c24602be78f 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 {
157
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
416 // fprintf(stderr, "Looking in %s\n", fn -> subs[sn] -> filename);
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
417 r = find_external_sym_recurse(sym, fn -> subs[sn]);
2c24602be78f 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 if (r)
2c24602be78f 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 {
155
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
420 // fprintf(stderr, "Found symbol %s in %s\n", sym, fn -> filename);
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
421 if (!(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
422 {
155
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
423 // fprintf(stderr, " Forced\n");
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
424 nforced = 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
425 fn -> forced = 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
426 }
2c24602be78f 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 return r;
2c24602be78f 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 }
2c24602be78f 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 }
2c24602be78f 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 return 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
431 }
2c24602be78f 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
2c24602be78f 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 // resolve all incomplete references now
2c24602be78f 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 // anything that is unresolvable at this stage will throw an error
2c24602be78f 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 // because we know the load address of every section now
2c24602be78f 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 lw_expr_stack_t *resolve_sym(char *sym, int symtype, void *state)
2c24602be78f 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 {
2c24602be78f 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 section_t *sect = state;
2c24602be78f 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 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
440 int val = 0, i, 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
441 lw_expr_stack_t *s;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
442 symtab_t *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
443 fileinfo_t *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
444
155
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
445 // fprintf(stderr, "Looking up %s\n", sym);
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
446
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 if (symtype == 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
448 {
2c24602be78f 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 // local symbol
2c24602be78f 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 if (!sym)
2c24602be78f 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 {
2c24602be78f 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 val = sect -> loadaddress;
2c24602be78f 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 goto 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
454 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
455
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
456 // start with this 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
457 for (se = sect -> localsyms; se; se = se -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
458 {
2
7317fbe024af Clean up insane number of compiler warnings under -Wall
lost@l-w.ca
parents: 0
diff changeset
459 if (!strcmp((char *)(se -> sym), sym))
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
460 {
156
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
461 if (sect -> flags & SECTION_CONST)
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
462 val = se -> offset;
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
463 else
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
464 val = se -> offset + sect -> loadaddress;
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
465 goto 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
466 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
467 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
468 // not in this section - check all sections in this 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
469 for (i = 0; i < sect -> file -> nsections; 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
470 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
471 for (se = sect -> file -> sections[i].localsyms; se; se = se -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
472 {
2
7317fbe024af Clean up insane number of compiler warnings under -Wall
lost@l-w.ca
parents: 0
diff changeset
473 if (!strcmp((char *)(se -> sym), sym))
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
474 {
156
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
475 if (sect -> file -> sections[i].flags & SECTION_CONST)
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
476 val = se -> offset;
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
477 else
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
478 val = se -> offset + sect -> file -> sections[i].loadaddress;
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
479 goto 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
480 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
481 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
482 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
483 // not found
235
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
484 if (!quietsym)
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
485 {
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
486 symerr = 1;
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
487 fprintf(stderr, "Local symbol %s not found in %s:%s\n", sanitize_symbol(sym), sect -> file -> filename, sect -> name);
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
488 }
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
489 goto outerr;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
490 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
491 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
492 {
234
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
493 symlist_t *se;
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
494
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
495 // external symbol
234
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
496 // first look up synthesized symbols
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
497 for (se = symlist; se; se = se -> next)
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
498 {
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
499 if (!strcmp(se -> sym, sym))
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
500 {
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
501 val = se -> val;
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
502 goto out;
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
503 }
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
504 }
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
505
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
506 // read all files in order until found (or not found)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
507 if (sect)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
508 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
509 for (fp = sect -> file; fp; fp = fp -> parent)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
510 {
157
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
511 // fprintf(stderr, "Looking in %s\n", fp -> filename);
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
512 s = find_external_sym_recurse(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
513 if (s)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
514 return s;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
515 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
516 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
517
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
518 for (fn = 0; fn < ninputfiles; 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
519 {
157
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
520 // fprintf(stderr, "Looking in %s\n", inputfiles[fn] -> filename);
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
521 s = find_external_sym_recurse(sym, inputfiles[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
522 if (s)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
523 return s;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
524 }
235
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
525 if (!quietsym)
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
526 {
235
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
527 if (sect)
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
528 {
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
529 fprintf(stderr, "External symbol %s not found in %s:%s\n", sanitize_symbol(sym), sect -> file -> filename, sect -> name);
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
530 }
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
531 else
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
532 {
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
533 fprintf(stderr, "External symbol %s not found\n", sym);
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
534 }
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
535 symerr = 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
536 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
537 goto outerr;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
538 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
539 fprintf(stderr, "Shouldn't ever get here!!!\n");
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
540 exit(88);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
541 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
542 s = 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
543 term = lw_expr_term_create_int(val & 0xffff);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
544 lw_expr_stack_push(s, 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
545 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
546 return s;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
547 outerr:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
548 return 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
549 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
550
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
551 void resolve_references(void)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
552 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
553 int sn;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
554 reloc_t *rl;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
555 int rval;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
556
235
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
557 quietsym = 0;
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
558
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
559 // resolve entry point if required
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
560 // this must resolve to an *exported* symbol and will resolve to 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
561 // first instance of that symbol
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
562 if (linkscript.execsym)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
563 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
564 lw_expr_stack_t *s;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
565
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
566 s = resolve_sym(linkscript.execsym, 0, 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
567 if (!s)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
568 {
235
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
569 fprintf(stderr, "Cannot resolve exec address '%s'\n", linkscript.execsym);
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
570 symerr = 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
571 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
572 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
573 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
574 linkscript.execaddr = lw_expr_get_value(s);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
575 lw_expr_stack_free(s);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
576 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
577 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
578
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
579 for (sn = 0; sn < nsects; sn++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
580 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
581 for (rl = sectlist[sn].ptr -> incompletes; rl; rl = rl -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
582 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
583 // do a "simplify" on 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
584 rval = lw_expr_reval(rl -> expr, resolve_sym, sectlist[sn].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
585
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
586 // is it constant? error out 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
587 if (rval != 0 || !lw_expr_is_constant(rl -> expr))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
588 {
235
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
589 fprintf(stderr, "Incomplete reference at %s:%s+%02X\n", sectlist[sn].ptr -> file -> filename, sectlist[sn].ptr -> name, rl -> offset);
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
590 symerr = 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
591 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
592 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
593 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
594 // put the value into the relocation 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
595 rval = lw_expr_get_value(rl -> expr);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
596 if (rl -> flags & RELOC_8BIT)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
597 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
598 sectlist[sn].ptr -> code[rl -> offset] = rval & 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
599 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
600 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
601 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
602 sectlist[sn].ptr -> code[rl -> offset] = (rval >> 8) & 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
603 sectlist[sn].ptr -> code[rl -> offset + 1] = rval & 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
604 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
605 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
606 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
607 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
608
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
609 if (symerr)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
610 exit(1);
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
611
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
612 if (outformat == OUTPUT_OS9)
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
613 check_os9();
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
614 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
615
155
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
616 void resolve_files_aux(fileinfo_t *fn)
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
617 {
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
618 int sn;
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
619 reloc_t *rl;
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
620 lw_expr_stack_t *te;
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
621
264
346966cffeef Clean up various warnings when building under -Wall
William Astle <lost@l-w.ca>
parents: 263
diff changeset
622 // int rval;
155
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
623
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
624
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
625 if (fn -> forced == 0)
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
626 return;
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
627
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
628 for (sn = 0; sn < fn -> nsections; sn++)
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
629 {
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
630 for (rl = fn -> sections[sn].incompletes; rl; rl = rl -> next)
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
631 {
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
632 // do a "simplify" on the expression
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
633 te = lw_expr_stack_dup(rl -> expr);
264
346966cffeef Clean up various warnings when building under -Wall
William Astle <lost@l-w.ca>
parents: 263
diff changeset
634 lw_expr_reval(te, resolve_sym, &(fn -> sections[sn]));
155
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
635
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
636 // is it constant? error out if not
235
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
637 // incompletes will error out during resolve_references()
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
638 //if (rval != 0 || !lw_expr_is_constant(te))
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
639 //{
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
640 // fprintf(stderr, "Incomplete reference at %s:%s+%02X\n", fn -> filename, fn -> sections[sn].name, rl -> offset);
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
641 // symerr = 1;
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
642 //}
155
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
643 lw_expr_stack_free(te);
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
644 }
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
645 }
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
646
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
647 // handle any sub files
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
648 for (sn = 0; sn < fn -> nsubs; sn++)
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
649 resolve_files_aux(fn -> subs[sn]);
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
650 }
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
651
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
652 /*
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
653 This is just a pared down version of the algo for resolving references.
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
654 */
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
655 void resolve_files(void)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
656 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
657 int 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
658
157
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
659 resolveonly = 1;
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
660
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
661 // resolve entry point if required
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
662 // this must resolve to an *exported* symbol and will resolve to 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
663 // first instance of that symbol
157
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
664 // if (linkscript.execsym)
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
665 // {
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
666 // lw_expr_stack_t *s;
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
667 //
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
668 // s = resolve_sym(linkscript.execsym, 0, NULL);
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
669 // if (!s)
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
670 // {
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
671 // fprintf(stderr, "Cannot resolve exec address '%s'\n", sanitize_symbol(linkscript.execsym));
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
672 // symerr = 1;
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
673 // }
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
674 // }
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
675
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
676 do
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
677 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
678 nforced = 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
679 for (fn = 0; fn < ninputfiles; 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
680 {
155
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
681 resolve_files_aux(inputfiles[fn]);
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
682 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
683 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
684 while (nforced == 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
685
157
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
686 resolveonly = 0;
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
687
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
688 // if (symerr)
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
689 // exit(1);
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
690
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
691 symerr = 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
692 // theoretically, all files referenced by other files now have "forced" set to 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
693 for (fn = 0; fn < ninputfiles; 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
694 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
695 if (inputfiles[fn] -> forced == 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
696 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
697
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
698 fprintf(stderr, "Warning: %s (%d) does not resolve any symbols\n", inputfiles[fn] -> filename, 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
699 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
700 }
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
701 void find_section_by_name_once_aux(char *name, fileinfo_t *fn, section_t **rval, int *found);
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
702 void find_section_by_name_once_aux(char *name, fileinfo_t *fn, section_t **rval, int *found)
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
703 {
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
704 int sn;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
705
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
706 if (fn -> forced == 0)
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
707 return;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
708
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
709 for (sn = 0; sn < fn -> nsections; sn++)
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
710 {
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
711 if (!strcmp(name, (char *)(fn -> sections[sn].name)))
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
712 {
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
713 (*found)++;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
714 *rval = &(fn -> sections[sn]);
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
715 }
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
716 }
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
717 for (sn = 0; sn < fn -> nsubs; sn++)
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
718 {
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
719 find_section_by_name_once_aux(name, fn -> subs[sn], rval, found);
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
720 }
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
721 }
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
722
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
723 section_t *find_section_by_name_once(char *name)
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
724 {
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
725 int fn;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
726 int found = 0;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
727 section_t *rval = NULL;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
728
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
729 for (fn = 0; fn < ninputfiles; fn++)
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
730 {
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
731 find_section_by_name_once_aux(name, inputfiles[fn], &rval, &found);
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
732 }
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
733 if (found != 1)
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
734 {
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
735 rval = NULL;
149
729a9c70934e Fixed crash and bogus warning with os9 module target
lost@l-w.ca
parents: 148
diff changeset
736 if (found > 1)
729a9c70934e Fixed crash and bogus warning with os9 module target
lost@l-w.ca
parents: 148
diff changeset
737 fprintf(stderr, "Warning: multiple instances of section %s found; ignoring all of them which is probably not what you want\n", name);
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
738 }
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
739 return rval;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
740 }
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
741
258
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
742 void foreach_section_aux(char *name, fileinfo_t *fn, void (*fnp)(section_t *s, void *arg), void *arg)
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
743 {
258
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
744 int sn;
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
745
258
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
746 if (fn -> forced == 0)
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
747 return;
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
748
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
749 for (sn = 0; sn < fn -> nsections; sn++)
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
750 {
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
751 if (!strcmp(name, (char *)(fn -> sections[sn].name)))
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
752 {
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
753 (*fnp)(&(fn -> sections[sn]), arg);
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
754 }
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
755 }
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
756 for (sn = 0; sn < fn -> nsubs; sn++)
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
757 {
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
758 foreach_section_aux(name, fn -> subs[sn], fnp, arg);
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
759 }
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
760 }
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
761 void foreach_section(char *name, void (*fnp)(section_t *s, void *arg), void *arg)
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
762 {
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
763 int fn;
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
764
258
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
765 for (fn = 0; fn < ninputfiles; fn++)
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
766 {
258
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
767 foreach_section_aux(name, inputfiles[fn], fnp, arg);
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
768 }
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
769 }
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
770
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
771 struct check_os9_aux_s
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
772 {
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
773 int typeseen;
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
774 int attrseen;
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
775 int langseen;
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
776 int revseen;
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
777 int nameseen;
262
7de7b14ebaee Add support for os9 module edition byte
William Astle <lost@l-w.ca>
parents: 258
diff changeset
778 int edseen;
258
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
779 };
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
780
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
781 void check_os9_aux(section_t *s, void *arg)
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
782 {
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
783 struct check_os9_aux_s *st = arg;
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
784 symtab_t *sym;
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
785
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
786 // this section is special
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
787 // several symbols may be defined as LOCAL symbols:
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
788 // type: module type
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
789 // lang: module language
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
790 // attr: module attributes
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
791 // rev: module revision
262
7de7b14ebaee Add support for os9 module edition byte
William Astle <lost@l-w.ca>
parents: 258
diff changeset
792 // ed: module edition
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
793 //
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
794 // the symbols are not case sensitive
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
795 //
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
796 // any unrecognized symbols are ignored
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
797
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
798 // the contents of the actual data to the first NUL
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
799 // is assumed to be the module name unless it is an empty string
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
800 if (s -> codesize > 0 && (s -> flags & SECTION_BSS) == 0 && s -> code[0] != 0)
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
801 {
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
802 linkscript.name = (char *)(s -> code);
258
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
803 st -> nameseen++;
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
804 }
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
805
149
729a9c70934e Fixed crash and bogus warning with os9 module target
lost@l-w.ca
parents: 148
diff changeset
806 for (sym = s -> localsyms; sym; sym = sym -> next)
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
807 {
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
808 char *sm = (char *)(sym -> sym);
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
809 if (!strcasecmp(sm, "type"))
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
810 {
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
811 linkscript.modtype = sym -> offset;
258
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
812 st -> typeseen++;
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
813 }
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
814 else if (!strcasecmp(sm, "lang"))
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
815 {
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
816 linkscript.modlang = sym -> offset;
258
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
817 st -> langseen++;
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
818 }
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
819 else if (!strcasecmp(sm, "attr"))
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
820 {
257
d5374e80dd04 Fix handling of attr override for os9 output
William Astle <lost@l-w.ca>
parents: 238
diff changeset
821 linkscript.modattr = sym -> offset;
258
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
822 st -> attrseen++;
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
823 }
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
824 else if (!strcasecmp(sm, "rev"))
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
825 {
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
826 linkscript.modrev = sym -> offset;
258
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
827 st -> revseen++;
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
828 }
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
829 else if (!strcasecmp(sm, "stack"))
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
830 {
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
831 linkscript.stacksize += sym -> offset;
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
832 }
263
8dd8c3bdca7c Fix stupid error with ' vs " handling os9 edition
William Astle <lost@l-w.ca>
parents: 262
diff changeset
833 else if (!strcasecmp(sm, "edition"))
262
7de7b14ebaee Add support for os9 module edition byte
William Astle <lost@l-w.ca>
parents: 258
diff changeset
834 {
7de7b14ebaee Add support for os9 module edition byte
William Astle <lost@l-w.ca>
parents: 258
diff changeset
835 linkscript.edition = sym -> offset;
7de7b14ebaee Add support for os9 module edition byte
William Astle <lost@l-w.ca>
parents: 258
diff changeset
836 st -> edseen++;
7de7b14ebaee Add support for os9 module edition byte
William Astle <lost@l-w.ca>
parents: 258
diff changeset
837 }
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
838 }
258
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
839 }
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
840
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
841 void check_os9(void)
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
842 {
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
843 struct check_os9_aux_s st = { 0 };
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
844
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
845 linkscript.name = outfile;
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
846 foreach_section("__os9", check_os9_aux, &st);
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
847 if (linkscript.modtype > 15)
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
848 linkscript.modtype = linkscript.modtype >> 4;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
849
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
850 if (linkscript.modattr > 15)
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
851 linkscript.modattr = linkscript.modattr >> 4;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
852
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
853 linkscript.modlang &= 15;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
854 linkscript.modtype &= 15;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
855 linkscript.modrev &= 15;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
856 linkscript.modattr &= 15;
258
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
857
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
858 if (st.attrseen > 1 || st.typeseen > 1 ||
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
859 st.langseen > 1 || st.revseen > 1 ||
264
346966cffeef Clean up various warnings when building under -Wall
William Astle <lost@l-w.ca>
parents: 263
diff changeset
860 st.nameseen > 1 || st.edseen > 1
258
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
861 )
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
862 {
262
7de7b14ebaee Add support for os9 module edition byte
William Astle <lost@l-w.ca>
parents: 258
diff changeset
863 fprintf(stderr, "Warning: multiple instances of __os9 found with duplicate settings of type, lang, attr, rev, edition, or module name.\n");
258
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
864 }
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
865 }
236
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
866
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
867 void resolve_padding(void)
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
868 {
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
869 int sn;
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
870
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
871 for (sn = 0; sn < nsects; sn++)
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
872 {
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
873 if (sectlist[sn].ptr -> afterbytes)
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
874 {
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
875 unsigned char *t;
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
876
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
877 t = lw_alloc(sectlist[sn].ptr -> codesize + sectlist[sn].ptr -> aftersize);
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
878 memmove(t, sectlist[sn].ptr -> code, sectlist[sn].ptr -> codesize);
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
879 sectlist[sn].ptr -> code = t;
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
880 memmove(sectlist[sn].ptr -> code + sectlist[sn].ptr -> codesize, sectlist[sn].ptr -> afterbytes, sectlist[sn].ptr -> aftersize);
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
881 sectlist[sn].ptr -> codesize += sectlist[sn].ptr -> aftersize;
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
882 }
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
883 }
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
884 }