Mercurial > hg > index.cgi
annotate lwlink/link.c @ 214:ff024e572ff2
Added tag lwtools-4.6 for changeset 38ecb99d78dd
author | William Astle <lost@l-w.ca> |
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date | Sat, 09 Jun 2012 23:36:24 -0600 |
parents | 4682460aed00 |
children | d389adbcc4ab |
rev | line source |
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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 |
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30 #include "expr.h" |
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31 #include "lwlink.h" |
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32 |
148 | 33 void check_os9(void); |
34 | |
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35 struct section_list *sectlist = NULL; |
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36 int nsects = 0; |
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37 static int nforced = 0; |
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38 static int resolveonly = 0; |
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39 |
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40 void check_section_name(char *name, int *base, fileinfo_t *fn) |
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41 { |
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42 int sn; |
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43 |
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44 // fprintf(stderr, "Considering sections in %s (%d) for %s\n", fn -> filename, fn -> forced, name); |
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45 if (fn -> forced == 0) |
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46 return; |
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47 |
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48 for (sn = 0; sn < fn -> nsections; sn++) |
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49 { |
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50 // fprintf(stderr, " Considering section %s\n", fn -> sections[sn].name); |
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51 if (!strcmp(name, (char *)(fn -> sections[sn].name))) |
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52 { |
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53 if (fn -> sections[sn].flags & SECTION_CONST) |
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54 continue; |
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55 // we have a match |
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56 // fprintf(stderr, " Found\n"); |
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57 sectlist = lw_realloc(sectlist, sizeof(struct section_list) * (nsects + 1)); |
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58 sectlist[nsects].ptr = &(fn -> sections[sn]); |
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59 |
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60 fn -> sections[sn].processed = 1; |
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61 fn -> sections[sn].loadaddress = *base; |
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62 *base += fn -> sections[sn].codesize; |
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63 nsects++; |
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64 // fprintf(stderr, "Adding section %s (%s)\n",fn -> sections[sn].name, fn -> filename); |
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65 } |
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66 } |
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67 for (sn = 0; sn < fn -> nsubs; sn++) |
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68 { |
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69 check_section_name(name, base, fn -> subs[sn]); |
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70 } |
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71 } |
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72 |
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73 void add_matching_sections(char *name, int yesflags, int noflags, int *base); |
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74 void check_section_flags(int yesflags, int noflags, int *base, fileinfo_t *fn) |
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75 { |
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76 int sn; |
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77 |
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78 // fprintf(stderr, "Considering sections in %s (%d) for %x/%x\n", fn -> filename, fn -> forced, yesflags, noflags); |
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79 |
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80 if (fn -> forced == 0) |
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81 return; |
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82 |
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83 for (sn = 0; sn < fn -> nsections; sn++) |
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84 { |
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85 // ignore "constant" sections - they're added during the file resolve stage |
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86 if (fn -> sections[sn].flags & SECTION_CONST) |
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87 continue; |
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88 // ignore if the noflags tell us to |
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89 if (noflags && (fn -> sections[sn].flags & noflags)) |
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90 continue; |
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91 // ignore unless the yesflags tell us not to |
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92 if (yesflags && ((fn -> sections[sn].flags & yesflags) == 0)) |
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93 continue; |
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94 // ignore it if already processed |
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95 if (fn -> sections[sn].processed) |
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96 continue; |
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97 |
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98 // we have a match - now collect *all* sections of the same name! |
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99 // fprintf(stderr, " Found\n"); |
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100 add_matching_sections((char *)(fn -> sections[sn].name), 0, 0, base); |
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101 |
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102 // and then continue looking for sections |
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103 } |
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104 for (sn = 0; sn < fn -> nsubs; sn++) |
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105 { |
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106 check_section_flags(yesflags, noflags, base, fn -> subs[sn]); |
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107 } |
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108 } |
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109 |
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110 |
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111 |
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112 void add_matching_sections(char *name, int yesflags, int noflags, int *base) |
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113 { |
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114 int fn; |
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115 if (name) |
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116 { |
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117 // named section |
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118 // look for all instances of a section by the specified name |
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119 // and resolve base addresses and add to the list |
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120 for (fn = 0; fn < ninputfiles; fn++) |
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121 { |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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|
122 check_section_name(name, base, inputfiles[fn]); |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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123 } |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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124 } |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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125 else |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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126 { |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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|
127 // wildcard section |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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128 // named section |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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129 // look for all instances of a section by the specified name |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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130 // and resolve base addresses and add to the list |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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131 for (fn = 0; fn < ninputfiles; fn++) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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132 { |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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133 check_section_flags(yesflags, noflags, base, inputfiles[fn]); |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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134 } |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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135 } |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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136 } |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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137 |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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138 // work out section load order and resolve base addresses for each section |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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139 // make a list of sections to load in order |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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140 void resolve_sections(void) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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141 { |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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142 int laddr = 0; |
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143 int ln, sn, fn; |
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144 |
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145 for (ln = 0; ln < linkscript.nlines; ln++) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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146 { |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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147 if (linkscript.lines[ln].loadat >= 0) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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148 laddr = linkscript.lines[ln].loadat; |
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149 add_matching_sections(linkscript.lines[ln].sectname, linkscript.lines[ln].yesflags, linkscript.lines[ln].noflags, &laddr); |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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150 |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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151 if (linkscript.lines[ln].sectname) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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152 { |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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153 } |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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154 else |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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155 { |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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156 // wildcard section |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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157 // look for all sections not yet processed that match flags |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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158 |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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159 int f = 0; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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160 int fn0, sn0; |
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161 char *sname; |
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162 |
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163 // named section |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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164 // look for all instances of a section by the specified name |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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165 // and resolve base addresses and add to the list |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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166 for (fn0 = 0; fn0 < ninputfiles; fn0++) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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167 { |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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168 for (sn0 = 0; sn0 < inputfiles[fn0] -> nsections; sn0++) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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169 { |
156
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Added 'constant' sections to object file handling for lwasm and lwlink
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170 // ignore "constant" sections |
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171 if (inputfiles[fn0] -> sections[sn0].flags & SECTION_CONST) |
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172 continue; |
0
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173 // ignore if the "no flags" bit says to |
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174 if (linkscript.lines[ln].noflags && (inputfiles[fn0] -> sections[sn0].flags & linkscript.lines[ln].noflags)) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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175 continue; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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176 // ignore unless the yes flags tell us not to |
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Clean up insane number of compiler warnings under -Wall
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177 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
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178 continue; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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179 if (inputfiles[fn0] -> sections[sn0].processed == 0) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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180 { |
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181 sname = (char *)(inputfiles[fn0] -> sections[sn0].name); |
0
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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182 for (fn = 0; fn < ninputfiles; fn++) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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183 { |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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184 for (sn = 0; sn < inputfiles[fn] -> nsections; sn++) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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185 { |
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diff
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186 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
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187 { |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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188 // we have a match |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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189 sectlist = lw_realloc(sectlist, sizeof(struct section_list) * (nsects + 1)); |
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190 sectlist[nsects].ptr = &(inputfiles[fn] -> sections[sn]); |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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191 |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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192 inputfiles[fn] -> sections[sn].processed = 1; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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193 if (!f && linkscript.lines[ln].loadat >= 0) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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194 { |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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195 f = 1; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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196 sectlist[nsects].forceaddr = 1; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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197 laddr = linkscript.lines[ln].loadat; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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198 } |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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199 else |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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200 { |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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201 sectlist[nsects].forceaddr = 0; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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202 } |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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203 inputfiles[fn] -> sections[sn].loadaddress = laddr; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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204 laddr += inputfiles[fn] -> sections[sn].codesize; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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205 nsects++; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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206 } |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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|
207 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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208 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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209 } |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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210 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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211 } |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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212 } |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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213 } |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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214 |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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215 // theoretically, all the base addresses are set now |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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216 } |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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217 |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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|
218 lw_expr_stack_t *find_external_sym_recurse(char *sym, fileinfo_t *fn) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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219 { |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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220 int sn; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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|
221 lw_expr_stack_t *r; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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222 lw_expr_term_t *term; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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223 symtab_t *se; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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224 int val; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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225 |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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226 for (sn = 0; sn < fn -> nsections; sn++) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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227 { |
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228 for (se = fn -> sections[sn].exportedsyms; se; se = se -> next) |
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229 { |
157
4682460aed00
Correct bug with handling symbol resolution and constant section handling
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156
diff
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|
230 // fprintf(stderr, " Considering %s\n", se -> sym); |
2
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Clean up insane number of compiler warnings under -Wall
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0
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|
231 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
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|
232 { |
157
4682460aed00
Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
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156
diff
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|
233 // fprintf(stderr, " Match (%d)\n", fn -> sections[sn].processed); |
156
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
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155
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234 // if the section was not previously processed and is CONSTANT, force it in |
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Added 'constant' sections to object file handling for lwasm and lwlink
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235 // otherwise error out if it is not being processed |
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Added 'constant' sections to object file handling for lwasm and lwlink
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155
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236 if (fn -> sections[sn].processed == 0) |
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Added 'constant' sections to object file handling for lwasm and lwlink
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155
diff
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|
237 { |
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
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155
diff
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|
238 if (fn -> sections[sn].flags & SECTION_CONST) |
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
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155
diff
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|
239 { |
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
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155
diff
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|
240 // add to section list |
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
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155
diff
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|
241 sectlist = lw_realloc(sectlist, sizeof(struct section_list) * (nsects + 1)); |
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
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parents:
155
diff
changeset
|
242 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
|
243 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
|
244 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
|
245 nsects++; |
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
155
diff
changeset
|
246 } |
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
155
diff
changeset
|
247 else |
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
155
diff
changeset
|
248 { |
157
4682460aed00
Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents:
156
diff
changeset
|
249 if (resolveonly == 0) |
4682460aed00
Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents:
156
diff
changeset
|
250 { |
4682460aed00
Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents:
156
diff
changeset
|
251 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
|
252 continue; |
4682460aed00
Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents:
156
diff
changeset
|
253 } |
156
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
155
diff
changeset
|
254 } |
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
155
diff
changeset
|
255 } |
155
1571e150f1fd
Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents:
149
diff
changeset
|
256 // 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
|
257 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
|
258 { |
155
1571e150f1fd
Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents:
149
diff
changeset
|
259 // 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
|
260 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
|
261 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
|
262 } |
156
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
155
diff
changeset
|
263 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
|
264 val = se -> offset; |
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
155
diff
changeset
|
265 else |
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
155
diff
changeset
|
266 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
|
267 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
|
268 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
|
269 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
|
270 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
|
271 |
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
|
272 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
|
273 } |
2c24602be78f
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 } |
2c24602be78f
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 |
2c24602be78f
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 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
|
278 { |
157
4682460aed00
Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents:
156
diff
changeset
|
279 // 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
|
280 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
|
281 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
|
282 { |
155
1571e150f1fd
Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents:
149
diff
changeset
|
283 // 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
|
284 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
|
285 { |
155
1571e150f1fd
Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents:
149
diff
changeset
|
286 // 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
|
287 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
|
288 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
|
289 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
290 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
|
291 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
292 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
293 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
|
294 } |
2c24602be78f
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 |
2c24602be78f
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 // 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
|
297 // 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
|
298 // 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
|
299 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
|
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 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
|
302 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
|
303 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
|
304 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
|
305 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
|
306 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
|
307 |
155
1571e150f1fd
Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents:
149
diff
changeset
|
308 // 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
|
309 |
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
|
310 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
|
311 { |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
312 // 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
|
313 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
|
314 { |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
315 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
|
316 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
|
317 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
318 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
319 // 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
|
320 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
|
321 { |
2
7317fbe024af
Clean up insane number of compiler warnings under -Wall
lost@l-w.ca
parents:
0
diff
changeset
|
322 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
|
323 { |
156
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
155
diff
changeset
|
324 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
|
325 val = se -> offset; |
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
155
diff
changeset
|
326 else |
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
155
diff
changeset
|
327 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
|
328 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
|
329 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
330 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
331 // 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
|
332 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
|
333 { |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
334 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
|
335 { |
2
7317fbe024af
Clean up insane number of compiler warnings under -Wall
lost@l-w.ca
parents:
0
diff
changeset
|
336 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
|
337 { |
156
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
155
diff
changeset
|
338 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
|
339 val = se -> offset; |
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
155
diff
changeset
|
340 else |
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
155
diff
changeset
|
341 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
|
342 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
|
343 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
344 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
345 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
346 // 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
|
347 symerr = 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
|
348 fprintf(stderr, "Local symbol %s not found in %s:%s\n", sanitize_symbol(sym), sect -> file -> filename, sect -> 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
|
349 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
|
350 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
351 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
|
352 { |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
353 // external 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
|
354 // 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
|
355 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
|
356 { |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
357 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
|
358 { |
157
4682460aed00
Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents:
156
diff
changeset
|
359 // 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
|
360 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
|
361 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
|
362 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
|
363 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
364 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
365 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
366 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
|
367 { |
157
4682460aed00
Correct bug with handling symbol resolution and constant section handling
lost@l-w.ca
parents:
156
diff
changeset
|
368 // 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
|
369 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
|
370 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
|
371 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
|
372 } |
2c24602be78f
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 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
|
374 { |
2c24602be78f
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 fprintf(stderr, "External symbol %s not found in %s:%s\n", sanitize_symbol(sym), sect -> file -> filename, sect -> 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
|
376 } |
2c24602be78f
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 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
|
378 { |
2c24602be78f
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 fprintf(stderr, "External symbol %s not found\n", 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
|
380 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
381 symerr = 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
|
382 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
|
383 } |
2c24602be78f
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 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
|
385 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
|
386 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
|
387 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
|
388 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
|
389 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
|
390 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
|
391 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
|
392 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
|
393 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
|
394 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
395 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
396 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
|
397 { |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
398 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
|
399 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
|
400 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
|
401 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
402 // 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
|
403 // 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
|
404 // 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
|
405 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
|
406 { |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
407 lw_expr_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
|
408 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
409 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
|
410 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
|
411 { |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
412 fprintf(stderr, "Cannot resolve exec address '%s'\n", 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
|
413 symerr = 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 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
415 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
|
416 { |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
417 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
|
418 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
|
419 } |
2c24602be78f
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 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
421 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
422 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
|
423 { |
2c24602be78f
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 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
|
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 // 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
|
427 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
|
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 // 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
|
430 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
|
431 { |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
432 fprintf(stderr, "Incomplete reference at %s:%s+%02X\n", sectlist[sn].ptr -> file -> filename, sectlist[sn].ptr -> name, rl -> offset); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
433 symerr = 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
|
434 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
435 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
|
436 { |
2c24602be78f
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 // 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
|
438 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
|
439 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
|
440 { |
2c24602be78f
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 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
|
442 } |
2c24602be78f
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 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
|
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 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
|
446 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
|
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 } |
2c24602be78f
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 } |
2c24602be78f
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 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
451 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
452 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
|
453 exit(1); |
148 | 454 |
455 if (outformat == OUTPUT_OS9) | |
456 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
|
457 } |
2c24602be78f
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 |
155
1571e150f1fd
Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents:
149
diff
changeset
|
459 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
|
460 { |
1571e150f1fd
Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents:
149
diff
changeset
|
461 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
|
462 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
|
463 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
|
464 |
1571e150f1fd
Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents:
149
diff
changeset
|
465 int rval; |
1571e150f1fd
Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents:
149
diff
changeset
|
466 |
1571e150f1fd
Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents:
149
diff
changeset
|
467 |
1571e150f1fd
Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents:
149
diff
changeset
|
468 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
|
469 return; |
1571e150f1fd
Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents:
149
diff
changeset
|
470 |
1571e150f1fd
Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents:
149
diff
changeset
|
471 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
|
472 { |
1571e150f1fd
Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents:
149
diff
changeset
|
473 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
|
474 { |
1571e150f1fd
Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents:
149
diff
changeset
|
475 // 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
|
476 te = lw_expr_stack_dup(rl -> expr); |
1571e150f1fd
Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents:
149
diff
changeset
|
477 rval = lw_expr_reval(te, resolve_sym, &(fn -> sections[sn])); |
1571e150f1fd
Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents:
149
diff
changeset
|
478 |
1571e150f1fd
Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents:
149
diff
changeset
|
479 // is it constant? error out if not |
1571e150f1fd
Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents:
149
diff
changeset
|
480 if (rval != 0 || !lw_expr_is_constant(te)) |
1571e150f1fd
Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents:
149
diff
changeset
|
481 { |
1571e150f1fd
Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents:
149
diff
changeset
|
482 fprintf(stderr, "Incomplete reference at %s:%s+%02X\n", fn -> filename, fn -> sections[sn].name, rl -> offset); |
1571e150f1fd
Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents:
149
diff
changeset
|
483 symerr = 1; |
1571e150f1fd
Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents:
149
diff
changeset
|
484 } |
1571e150f1fd
Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents:
149
diff
changeset
|
485 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
|
486 } |
1571e150f1fd
Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents:
149
diff
changeset
|
487 } |
1571e150f1fd
Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents:
149
diff
changeset
|
488 |
1571e150f1fd
Fixed error where external references within a library file were not resolved when linking
lost@l-w.ca
parents:
149
diff
changeset
|
489 // 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
|
490 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
|
491 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
|
492 } |
1571e150f1fd
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493 |
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494 /* |
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495 This is just a pared down version of the algo for resolving references. |
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496 */ |
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497 void resolve_files(void) |
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498 { |
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499 int fn; |
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500 |
157
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501 resolveonly = 1; |
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502 |
0
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503 // resolve entry point if required |
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504 // this must resolve to an *exported* symbol and will resolve to the |
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505 // first instance of that symbol |
157
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506 // if (linkscript.execsym) |
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507 // { |
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508 // lw_expr_stack_t *s; |
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509 // |
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510 // s = resolve_sym(linkscript.execsym, 0, NULL); |
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511 // if (!s) |
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512 // { |
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513 // fprintf(stderr, "Cannot resolve exec address '%s'\n", sanitize_symbol(linkscript.execsym)); |
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514 // symerr = 1; |
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515 // } |
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516 // } |
0
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517 |
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518 do |
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519 { |
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520 nforced = 0; |
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521 for (fn = 0; fn < ninputfiles; fn++) |
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522 { |
155
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523 resolve_files_aux(inputfiles[fn]); |
0
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524 } |
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525 } |
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526 while (nforced == 1); |
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527 |
157
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528 resolveonly = 0; |
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529 |
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530 // if (symerr) |
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531 // exit(1); |
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532 |
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533 symerr = 0; |
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534 // theoretically, all files referenced by other files now have "forced" set to 1 |
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535 for (fn = 0; fn < ninputfiles; fn++) |
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536 { |
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537 if (inputfiles[fn] -> forced == 1) |
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538 continue; |
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539 |
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540 fprintf(stderr, "Warning: %s (%d) does not resolve any symbols\n", inputfiles[fn] -> filename, fn); |
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541 } |
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542 } |
148 | 543 void find_section_by_name_once_aux(char *name, fileinfo_t *fn, section_t **rval, int *found); |
544 void find_section_by_name_once_aux(char *name, fileinfo_t *fn, section_t **rval, int *found) | |
545 { | |
546 int sn; | |
547 | |
548 if (fn -> forced == 0) | |
549 return; | |
550 | |
551 for (sn = 0; sn < fn -> nsections; sn++) | |
552 { | |
553 if (!strcmp(name, (char *)(fn -> sections[sn].name))) | |
554 { | |
555 (*found)++; | |
556 *rval = &(fn -> sections[sn]); | |
557 } | |
558 } | |
559 for (sn = 0; sn < fn -> nsubs; sn++) | |
560 { | |
561 find_section_by_name_once_aux(name, fn -> subs[sn], rval, found); | |
562 } | |
563 } | |
564 | |
565 section_t *find_section_by_name_once(char *name) | |
566 { | |
567 int fn; | |
568 int found = 0; | |
569 section_t *rval = NULL; | |
570 | |
571 for (fn = 0; fn < ninputfiles; fn++) | |
572 { | |
573 find_section_by_name_once_aux(name, inputfiles[fn], &rval, &found); | |
574 } | |
575 if (found != 1) | |
576 { | |
577 rval = NULL; | |
149
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578 if (found > 1) |
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579 fprintf(stderr, "Warning: multiple instances of section %s found; ignoring all of them which is probably not what you want\n", name); |
148 | 580 } |
581 return rval; | |
582 } | |
583 | |
584 void check_os9(void) | |
585 { | |
586 section_t *s; | |
587 symtab_t *sym; | |
588 | |
589 s = find_section_by_name_once("__os9"); | |
590 linkscript.name = outfile; | |
591 | |
592 if (!s) | |
593 { | |
594 // use defaults if not found | |
595 return; | |
596 } | |
597 | |
598 // this section is special | |
599 // several symbols may be defined as LOCAL symbols: | |
600 // type: module type | |
601 // lang: module language | |
602 // attr: module attributes | |
603 // rev: module revision | |
604 // | |
605 // the symbols are not case sensitive | |
606 // | |
607 // any unrecognized symbols are ignored | |
608 | |
609 // the contents of the actual data to the first NUL | |
610 // is assumed to be the module name unless it is an empty string | |
611 if (s -> codesize > 0 && (s -> flags & SECTION_BSS) == 0 && s -> code[0] != 0) | |
612 { | |
613 linkscript.name = (char *)(s -> code); | |
614 } | |
615 | |
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616 for (sym = s -> localsyms; sym; sym = sym -> next) |
148 | 617 { |
618 char *sm = (char *)(sym -> sym); | |
619 if (!strcasecmp(sm, "type")) | |
620 { | |
621 linkscript.modtype = sym -> offset; | |
622 } | |
623 else if (!strcasecmp(sm, "lang")) | |
624 { | |
625 linkscript.modlang = sym -> offset; | |
626 } | |
627 else if (!strcasecmp(sm, "attr")) | |
628 { | |
629 linkscript.modlang = sym -> offset; | |
630 } | |
631 else if (!strcasecmp(sm, "rev")) | |
632 { | |
633 linkscript.modrev = sym -> offset; | |
634 } | |
635 } | |
636 if (linkscript.modtype > 15) | |
637 linkscript.modtype = linkscript.modtype >> 4; | |
638 | |
639 if (linkscript.modattr > 15) | |
640 linkscript.modattr = linkscript.modattr >> 4; | |
641 | |
642 linkscript.modlang &= 15; | |
643 linkscript.modtype &= 15; | |
644 linkscript.modrev &= 15; | |
645 linkscript.modattr &= 15; | |
646 } |