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annotate lwlink/link.c @ 339:6138e304ab9a

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Revert 3b5a45c6ab92 The speedup fix in 3b5a45c6ab92 contains some sort of bug related to operand manipulation during expression simplification or copying. This leads to crashes that so have have eluded tracing. Revert back to known working version of the code, even though slower, to avoid regressions.
author William Astle <lost@l-w.ca>
date Fri, 08 Aug 2014 12:14:22 -0600
parents 6821f4855702
children 221b5f58d8ad
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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 sectopt_t *so;
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51
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52 // fprintf(stderr, "Considering sections in %s (%d) for %s\n", fn -> filename, fn -> forced, name);
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53 if (fn -> forced == 0)
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54 return;
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55
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56 for (so = section_opts; so; so = so -> next)
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57 if (!strcmp(so -> name, name))
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58 break;
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59
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60 for (sn = 0; sn < fn -> nsections; sn++)
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61 {
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62 // fprintf(stderr, " Considering section %s\n", fn -> sections[sn].name);
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63 if (!strcmp(name, (char *)(fn -> sections[sn].name)))
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64 {
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65 if (fn -> sections[sn].flags & SECTION_CONST)
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66 continue;
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67 // we have a match
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68 // fprintf(stderr, " Found\n");
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69 sectlist = lw_realloc(sectlist, sizeof(struct section_list) * (nsects + 1));
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70 sectlist[nsects].ptr = &(fn -> sections[sn]);
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71
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72
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73 fn -> sections[sn].processed = 1;
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74 if (down)
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75 {
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76 *base -= fn -> sections[sn].codesize;
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77 fn -> sections[sn].loadaddress = *base;
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78 }
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79 else
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80 {
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81 fn -> sections[sn].loadaddress = *base;
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82 *base += fn -> sections[sn].codesize;
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83 }
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84 if (down && so && so -> aftersize)
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85 {
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86 sectlist[nsects].ptr -> afterbytes = so -> afterbytes;
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87 sectlist[nsects].ptr -> aftersize = so -> aftersize;
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88 sectlist[nsects].ptr -> loadaddress -= so -> aftersize;
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89 *base -= so -> aftersize;
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90 so -> aftersize = 0;
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91 }
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92 nsects++;
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93 // fprintf(stderr, "Adding section %s (%s)\n",fn -> sections[sn].name, fn -> filename);
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94 }
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95 }
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96 for (sn = 0; sn < fn -> nsubs; sn++)
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97 {
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98 check_section_name(name, base, fn -> subs[sn], down);
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99 }
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100 }
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101
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102 void add_matching_sections(char *name, int yesflags, int noflags, int *base, int down);
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103 void check_section_flags(int yesflags, int noflags, int *base, fileinfo_t *fn, int down)
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104 {
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105 int sn;
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106 sectopt_t *so;
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107
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108 // fprintf(stderr, "Considering sections in %s (%d) for %x/%x\n", fn -> filename, fn -> forced, yesflags, noflags);
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109
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110 if (fn -> forced == 0)
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111 return;
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112
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113 for (sn = 0; sn < fn -> nsections; sn++)
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114 {
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115 // ignore "constant" sections - they're added during the file resolve stage
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116 if (fn -> sections[sn].flags & SECTION_CONST)
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117 continue;
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118 // ignore if the noflags tell us to
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119 if (noflags && (fn -> sections[sn].flags & noflags))
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120 continue;
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121 // ignore unless the yesflags tell us not to
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122 if (yesflags && ((fn -> sections[sn].flags & yesflags) == 0))
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123 continue;
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124 // ignore it if already processed
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125 if (fn -> sections[sn].processed)
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126 continue;
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127
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128 // we have a match - now collect *all* sections of the same name!
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129 // fprintf(stderr, " Found\n");
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130 add_matching_sections((char *)(fn -> sections[sn].name), 0, 0, base, down);
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131
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132 /* handle "after padding" */
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133 for (so = section_opts; so; so = so -> next)
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134 if (!strcmp(so -> name, (char *)(fn -> sections[sn].name)))
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135 break;
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136 if (so)
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137 {
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138 if (so -> aftersize)
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139 {
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William Astle <lost@l-w.ca>
parents: 235
diff changeset
140 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
141 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
142 if (down)
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
143 {
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
144 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
145 *base -= so -> aftersize;
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
146 }
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
147 else
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
148 {
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
149 *base += so -> aftersize;
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
150 }
236
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
151 }
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
152 }
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
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 // and then continue looking for sections
2c24602be78f 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 }
2c24602be78f 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 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
157 {
315
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
158 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
159 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
160 }
2c24602be78f 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
2c24602be78f 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
315
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William Astle <lost@l-w.ca>
parents: 264
diff changeset
164 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
165 {
2c24602be78f 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 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
167 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
168 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
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169 // 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:
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170 // 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:
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171 // 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
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172 for (fn = 0; fn < ninputfiles; fn++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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173 {
315
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William Astle <lost@l-w.ca>
parents: 264
diff changeset
174 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
175 }
2c24602be78f 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 }
2c24602be78f 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 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
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 // 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
180 // 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
181 // 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
182 // 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
183 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
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diff changeset
184 {
315
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
185 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
186 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
187 }
2c24602be78f 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 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
189
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
190 // 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
191 // 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
192 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
193 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff changeset
194 int laddr = 0;
315
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
195 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
196 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
197 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
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diff changeset
198
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
199 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
200 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
201 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
202 {
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
203 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
204 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
205 }
238
91f91557dc9e Removed extraneous debug message.
William Astle <lost@l-w.ca>
parents: 236
diff changeset
206 //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
207 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
208
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
209 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
210 {
236
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
211 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
212 /* handle "after padding" */
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
213 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
214 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
215 break;
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
216 if (so)
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
217 {
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
218 if (so -> aftersize)
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
219 {
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
220 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
221 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
222 if (growdown)
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
223 {
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
224 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
225 laddr -= so -> aftersize;
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
226 }
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
227 else
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
228 {
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
229 laddr += so -> aftersize;
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
230 }
236
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
231 }
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
232 }
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
233 }
2c24602be78f 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 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
235 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
236 // 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
237 // 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
238
2c24602be78f 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 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
240 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
241 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
242
2c24602be78f 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 // 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
244 // 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
245 // 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
246 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
247 {
2c24602be78f 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 (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
249 {
156
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
250 // ignore "constant" sections
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
251 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
252 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
253 // 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
254 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
255 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
256 // 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
257 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
258 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
259 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
260 {
2
7317fbe024af Clean up insane number of compiler warnings under -Wall
lost@l-w.ca
parents: 0
diff changeset
261 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
262 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
263 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
264 {
2c24602be78f 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 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
266 {
2
7317fbe024af Clean up insane number of compiler warnings under -Wall
lost@l-w.ca
parents: 0
diff changeset
267 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
268 {
2c24602be78f 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 // 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
270 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
271 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
272
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
273 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
274 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
275 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
276 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
277 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
278 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
279 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
280 }
2c24602be78f 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 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
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 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
284 }
315
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
285 if (growdown)
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
286 {
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
287 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
288 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
289 }
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
290 else
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
291 {
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
292 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
293 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
294 }
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
295 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
296 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
297 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
298 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
299 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
300 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
301 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
302 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
303 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
304
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
305 // 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
306 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
307
234
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
308 /* 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
309 void generate_symbols(void)
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
310 {
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
311 int sn;
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
312 char *lastsect = NULL;
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
313 char sym[256];
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
314 int len;
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
315 symlist_t *se;
315
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
316 int lowaddr;
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
317
234
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
318 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
319 {
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
320 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
321 {
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
322 if (lastsect && linkscript.lensympat)
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
323 {
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
324 /* handle length symbol */
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
325 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
326 se -> val = len;
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
327 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
328 se -> sym = lw_strdup(sym);
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
329 se -> next = symlist;
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
330 symlist = se;
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
331 }
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
332 if (lastsect && linkscript.basesympat)
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 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
335 se -> val = lowaddr;
234
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
336 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
337 se -> sym = lw_strdup(sym);
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
338 se -> next = symlist;
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
339 symlist = se;
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
340 }
315
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
341 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
342 len = 0;
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
343 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
344 }
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
345 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
346 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
347 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
348 }
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
349 if (lastsect && linkscript.lensympat)
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
350 {
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
351 /* handle length symbol */
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
352 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
353 se -> val = len;
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
354 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
355 se -> sym = lw_strdup(sym);
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
356 se -> next = symlist;
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
357 symlist = se;
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
358 }
315
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
359 if (lastsect && linkscript.basesympat)
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
360 {
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
361 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
362 se -> val = lowaddr;
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
363 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
364 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
365 se -> next = symlist;
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
366 symlist = se;
fcd103148aa6 Add ability to load sections downward instead of upward
William Astle <lost@l-w.ca>
parents: 264
diff changeset
367 }
234
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
368 }
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
369
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
370 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
371 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
372 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
373 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
374 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
375 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
376 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
377
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
378 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
379 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
380 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
381 {
157
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
382 // 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
383 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
384 {
157
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
385 // 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
386 // 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
387 // 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
388 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
389 {
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
390 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
391 {
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
392 // add to section list
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
393 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
394 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
395 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
396 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
397 nsects++;
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
398 }
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
399 else
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
400 {
157
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
401 if (resolveonly == 0)
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
402 {
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
403 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
404 continue;
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
405 }
156
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
406 }
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
407 }
155
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
408 // 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
409 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
410 {
155
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
411 // 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
412 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
413 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
414 }
156
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
415 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
416 val = se -> offset;
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
417 else
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
418 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
419 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
420 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
421 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
422 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
423
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 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
425 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
426 }
2c24602be78f 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 }
2c24602be78f 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 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
430 {
157
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
431 // 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
432 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
433 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
434 {
155
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
435 // 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
436 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
437 {
155
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
438 // 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
439 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
440 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
441 }
2c24602be78f 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 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
443 }
2c24602be78f 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 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
445 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
446 }
2c24602be78f 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
2c24602be78f 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 // 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
449 // 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
450 // 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
451 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
452 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
453 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
454 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
455 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
456 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
457 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
458 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
459
155
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
460 // 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
461
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
462 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
463 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
464 // 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
465 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
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 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
468 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
469 }
2c24602be78f 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 // 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
472 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
473 {
2
7317fbe024af Clean up insane number of compiler warnings under -Wall
lost@l-w.ca
parents: 0
diff changeset
474 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
475 {
156
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
476 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
477 val = se -> offset;
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
478 else
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
479 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
480 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
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 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
484 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
485 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
486 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
487 {
2
7317fbe024af Clean up insane number of compiler warnings under -Wall
lost@l-w.ca
parents: 0
diff changeset
488 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
489 {
156
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
490 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
491 val = se -> offset;
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
492 else
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 155
diff changeset
493 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
494 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
495 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
496 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
497 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
498 // not found
235
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
499 if (!quietsym)
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
500 {
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
501 symerr = 1;
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
502 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
503 }
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
504 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
505 }
2c24602be78f 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 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
507 {
234
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
508 symlist_t *se;
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
509
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
510 // external symbol
234
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
511 // first look up synthesized symbols
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
512 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
513 {
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
514 if (!strcmp(se -> sym, sym))
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
515 {
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
516 val = se -> val;
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
517 goto out;
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
518 }
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
519 }
d389adbcc4ab Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents: 157
diff changeset
520
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 // 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
522 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
523 {
2c24602be78f 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 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
525 {
157
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
526 // 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
527 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
528 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
529 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
530 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
531 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
532
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
533 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
534 {
157
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
535 // 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
536 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
537 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
538 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
539 }
235
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
540 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
541 {
235
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
542 if (sect)
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
543 {
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
544 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
545 }
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
546 else
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
547 {
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
548 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
549 }
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
550 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
551 }
2c24602be78f 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 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
553 }
2c24602be78f 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 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
555 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
556 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
557 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
558 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
559 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
560 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
561 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
562 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
563 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
564 }
2c24602be78f 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 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
567 {
2c24602be78f 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 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
569 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
570 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
571
235
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
572 quietsym = 0;
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
573
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
574 // 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
575 // 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
576 // 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
577 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
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 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
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 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
582 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
583 {
235
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
584 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
585 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
586 }
2c24602be78f 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 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
588 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
589 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
590 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
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 }
2c24602be78f 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 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
595 {
2c24602be78f 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 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
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 // 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
599 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
600
2c24602be78f 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 // 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
602 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
603 {
235
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
604 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
605 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
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 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
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 // 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
610 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
611 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
612 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
613 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
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 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
616 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
617 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
618 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
619 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
620 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
621 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
622 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
623
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
624 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
625 exit(1);
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
626
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
627 if (outformat == OUTPUT_OS9)
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
628 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
629 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
630
155
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
631 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
632 {
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
633 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
634 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
635 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
636
264
346966cffeef Clean up various warnings when building under -Wall
William Astle <lost@l-w.ca>
parents: 263
diff changeset
637 // 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
638
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
639
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
640 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
641 return;
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
642
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
643 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
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 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
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 // 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
648 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
649 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
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 // 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
652 // 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
653 //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
654 //{
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
655 // 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
656 // symerr = 1;
e3741cf53e00 Fix error messages related to undefined symbols in lwlink
William Astle <lost@l-w.ca>
parents: 234
diff changeset
657 //}
155
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
658 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
659 }
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
660 }
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
661
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
662 // 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
663 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
664 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
665 }
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
666
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
667 /*
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
668 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
669 */
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
670 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
671 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
672 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
673
157
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
674 resolveonly = 1;
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
675
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
676 // 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
677 // 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
678 // 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
679 // if (linkscript.execsym)
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
680 // {
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
681 // lw_expr_stack_t *s;
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
682 //
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
683 // 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
684 // if (!s)
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
685 // {
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
686 // 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
687 // symerr = 1;
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
688 // }
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
689 // }
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
690
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
691 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
692 {
2c24602be78f 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 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
694 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
695 {
155
1571e150f1fd Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents: 149
diff changeset
696 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
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 }
2c24602be78f 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 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
700
157
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
701 resolveonly = 0;
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
702
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
703 // if (symerr)
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
704 // exit(1);
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
705
4682460aed00 Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents: 156
diff changeset
706 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
707 // 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
708 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
709 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
710 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
711 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
712
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
713 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
714 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
715 }
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
716 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
717 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
718 {
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
719 int sn;
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 if (fn -> forced == 0)
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
722 return;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
723
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
724 for (sn = 0; sn < fn -> nsections; sn++)
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
725 {
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
726 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
727 {
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
728 (*found)++;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
729 *rval = &(fn -> sections[sn]);
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 }
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
732 for (sn = 0; sn < fn -> nsubs; sn++)
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
733 {
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
734 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
735 }
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
736 }
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
737
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
738 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
739 {
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
740 int fn;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
741 int found = 0;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
742 section_t *rval = NULL;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
743
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
744 for (fn = 0; fn < ninputfiles; fn++)
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
745 {
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
746 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
747 }
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
748 if (found != 1)
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
749 {
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
750 rval = NULL;
149
729a9c70934e Fixed crash and bogus warning with os9 module target
lost@l-w.ca
parents: 148
diff changeset
751 if (found > 1)
729a9c70934e Fixed crash and bogus warning with os9 module target
lost@l-w.ca
parents: 148
diff changeset
752 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
753 }
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
754 return rval;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
755 }
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
756
258
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
757 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
758 {
258
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
759 int sn;
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
760
258
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
761 if (fn -> forced == 0)
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
762 return;
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
763
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
764 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
765 {
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
766 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
767 {
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
768 (*fnp)(&(fn -> sections[sn]), arg);
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 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
772 {
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
773 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
774 }
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
775 }
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
776 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
777 {
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
778 int fn;
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
779
258
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
780 for (fn = 0; fn < ninputfiles; fn++)
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
781 {
258
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
782 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
783 }
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
784 }
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
785
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
786 struct check_os9_aux_s
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
787 {
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
788 int typeseen;
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
789 int attrseen;
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
790 int langseen;
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
791 int revseen;
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
792 int nameseen;
262
7de7b14ebaee Add support for os9 module edition byte
William Astle <lost@l-w.ca>
parents: 258
diff changeset
793 int edseen;
258
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
794 };
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
795
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
796 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
797 {
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
798 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
799 symtab_t *sym;
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
800
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
801 // this section is special
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
802 // 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
803 // type: module type
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
804 // lang: module language
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
805 // attr: module attributes
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
806 // rev: module revision
262
7de7b14ebaee Add support for os9 module edition byte
William Astle <lost@l-w.ca>
parents: 258
diff changeset
807 // ed: module edition
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
808 //
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
809 // the symbols are not case sensitive
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 // any unrecognized symbols are ignored
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
812
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
813 // 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
814 // 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
815 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
816 {
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
817 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
818 st -> nameseen++;
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
819 }
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
820
149
729a9c70934e Fixed crash and bogus warning with os9 module target
lost@l-w.ca
parents: 148
diff changeset
821 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
822 {
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
823 char *sm = (char *)(sym -> sym);
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
824 if (!strcasecmp(sm, "type"))
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.modtype = sym -> offset;
258
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
827 st -> typeseen++;
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
828 }
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
829 else if (!strcasecmp(sm, "lang"))
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
830 {
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
831 linkscript.modlang = sym -> offset;
258
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
832 st -> langseen++;
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
833 }
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
834 else if (!strcasecmp(sm, "attr"))
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
835 {
257
d5374e80dd04 Fix handling of attr override for os9 output
William Astle <lost@l-w.ca>
parents: 238
diff changeset
836 linkscript.modattr = sym -> offset;
258
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
837 st -> attrseen++;
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
838 }
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
839 else if (!strcasecmp(sm, "rev"))
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
840 {
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
841 linkscript.modrev = sym -> offset;
258
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
842 st -> revseen++;
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
843 }
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
844 else if (!strcasecmp(sm, "stack"))
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
845 {
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
846 linkscript.stacksize += sym -> offset;
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
847 }
263
8dd8c3bdca7c Fix stupid error with ' vs " handling os9 edition
William Astle <lost@l-w.ca>
parents: 262
diff changeset
848 else if (!strcasecmp(sm, "edition"))
262
7de7b14ebaee Add support for os9 module edition byte
William Astle <lost@l-w.ca>
parents: 258
diff changeset
849 {
7de7b14ebaee Add support for os9 module edition byte
William Astle <lost@l-w.ca>
parents: 258
diff changeset
850 linkscript.edition = sym -> offset;
7de7b14ebaee Add support for os9 module edition byte
William Astle <lost@l-w.ca>
parents: 258
diff changeset
851 st -> edseen++;
7de7b14ebaee Add support for os9 module edition byte
William Astle <lost@l-w.ca>
parents: 258
diff changeset
852 }
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
853 }
258
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
854 }
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
855
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
856 void check_os9(void)
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 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
859
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
860 linkscript.name = outfile;
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
861 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
862 if (linkscript.modtype > 15)
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
863 linkscript.modtype = linkscript.modtype >> 4;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
864
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
865 if (linkscript.modattr > 15)
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
866 linkscript.modattr = linkscript.modattr >> 4;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
867
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
868 linkscript.modlang &= 15;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
869 linkscript.modtype &= 15;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
870 linkscript.modrev &= 15;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
871 linkscript.modattr &= 15;
258
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
872
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
873 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
874 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
875 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
876 )
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 257
diff changeset
877 {
262
7de7b14ebaee Add support for os9 module edition byte
William Astle <lost@l-w.ca>
parents: 258
diff changeset
878 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
879 }
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 8
diff changeset
880 }
236
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
881
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
882 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
883 {
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
884 int sn;
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
885
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
886 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
887 {
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
888 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
889 {
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
890 unsigned char *t;
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
891
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
892 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
893 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
894 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
895 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
896 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
897 }
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
898 }
ce1fdc8d6568 Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents: 235
diff changeset
899 }