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annotate lwlink/main.c @ 184:220a760ec654
Make lwlink display all undefined references instead of bailing after the first one
| author | lost |
|---|---|
| date | Sat, 21 Mar 2009 17:39:45 +0000 |
| parents | 833d392fec82 |
| children | b89adfb0d174 |
| rev | line source |
|---|---|
| 112 | 1 /* |
| 2 main.c | |
| 118 | 3 Copyright © 2009 William Astle |
| 112 | 4 |
| 5 This file is part of LWLINK. | |
| 6 | |
| 7 LWLINK is free software: you can redistribute it and/or modify it under the | |
| 8 terms of the GNU General Public License as published by the Free Software | |
| 9 Foundation, either version 3 of the License, or (at your option) any later | |
| 10 version. | |
| 11 | |
| 12 This program is distributed in the hope that it will be useful, but WITHOUT | |
| 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
| 15 more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License along with | |
| 18 this program. If not, see <http://www.gnu.org/licenses/>. | |
| 19 | |
| 20 | |
| 21 Implements the program startup code | |
| 22 | |
| 23 */ | |
| 24 | |
| 25 #ifdef HAVE_CONFIG_H | |
| 26 #include "config.h" | |
| 27 #endif | |
| 28 | |
| 29 #include <argp.h> | |
| 30 #include <errno.h> | |
| 31 #include <stdio.h> | |
| 32 #include <stdlib.h> | |
|
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33 #include <unistd.h> |
| 112 | 34 |
| 35 #include "lwlink.h" | |
| 36 | |
| 37 // command line option handling | |
| 142 | 38 const char *argp_program_version = "LWLINK from " PACKAGE_STRING; |
| 112 | 39 const char *argp_program_bug_address = PACKAGE_BUGREPORT; |
| 40 | |
| 41 static error_t parse_opts(int key, char *arg, struct argp_state *state) | |
| 42 { | |
| 43 switch (key) | |
| 44 { | |
| 45 case 'o': | |
| 46 // output | |
| 47 outfile = arg; | |
| 48 break; | |
| 49 | |
| 117 | 50 case 's': |
| 51 // script file | |
| 52 scriptfile = arg; | |
| 53 break; | |
| 54 | |
| 112 | 55 case 'd': |
| 56 // debug | |
| 57 debug_level++; | |
| 58 break; | |
| 59 | |
| 60 case 'b': | |
| 61 // decb output | |
| 62 outformat = OUTPUT_DECB; | |
| 63 break; | |
| 64 | |
| 65 case 'r': | |
| 66 // raw binary output | |
| 67 outformat = OUTPUT_RAW; | |
| 68 break; | |
| 69 | |
| 70 case 'f': | |
| 71 // output format | |
| 72 if (!strcasecmp(arg, "decb")) | |
| 73 outformat = OUTPUT_DECB; | |
| 74 else if (!strcasecmp(arg, "raw")) | |
| 75 outformat = OUTPUT_RAW; | |
| 76 else | |
| 77 { | |
| 78 fprintf(stderr, "Invalid output format: %s\n", arg); | |
| 79 exit(1); | |
| 80 } | |
| 81 break; | |
| 82 case ARGP_KEY_END: | |
| 83 // done; sanity check | |
| 84 if (!outfile) | |
| 85 outfile = "a.out"; | |
| 86 break; | |
| 87 | |
| 180 | 88 case 'l': |
| 89 add_input_library(arg); | |
| 90 break; | |
| 91 | |
| 92 case 'L': | |
| 93 add_library_search(arg); | |
| 94 break; | |
| 95 | |
| 96 case 0x100: | |
| 97 add_section_base(arg); | |
| 98 break; | |
| 99 | |
| 112 | 100 case ARGP_KEY_ARG: |
|
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101 add_input_file(arg); |
| 112 | 102 break; |
| 103 | |
| 104 default: | |
| 105 return ARGP_ERR_UNKNOWN; | |
| 106 } | |
| 107 return 0; | |
| 108 } | |
| 109 | |
| 110 static struct argp_option options[] = | |
| 111 { | |
| 112 { "output", 'o', "FILE", 0, | |
| 113 "Output to FILE"}, | |
| 114 { "debug", 'd', 0, 0, | |
| 115 "Set debug mode"}, | |
| 116 { "format", 'f', "TYPE", 0, | |
| 149 | 117 "Select output format: decb, raw"}, |
| 112 | 118 { "decb", 'b', 0, 0, |
| 119 "Generate DECB .bin format output, equivalent of --format=decb"}, | |
| 120 { "raw", 'r', 0, 0, | |
| 121 "Generate raw binary format output, equivalent of --format=raw"}, | |
|
125
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122 { "script", 's', "FILE", 0, |
| 180 | 123 "Specify the linking script (overrides the built in defaults)"}, |
| 124 { "library", 'l', "LIBSPEC", 0, | |
| 125 "Read library libLIBSPEC.a from the search path" }, | |
| 126 { "library-path", 'L', "DIR", 0, | |
| 127 "Add DIR to the library search path" }, | |
| 128 { "section-base", 0x100, "SECT=BASE", 0, | |
| 129 "Load section SECT at BASE" }, | |
| 112 | 130 { 0 } |
| 131 }; | |
| 132 | |
| 133 static struct argp argp = | |
| 134 { | |
| 135 options, | |
| 136 parse_opts, | |
| 137 "<input file> ...", | |
| 138 "LWLINK, a HD6309 and MC6809 cross-linker" | |
| 139 }; | |
| 140 | |
| 115 | 141 extern void read_files(void); |
| 117 | 142 extern void setup_script(void); |
| 119 | 143 extern void resolve_sections(void); |
| 121 | 144 extern void resolve_references(void); |
| 145 extern void do_output(void); | |
| 115 | 146 |
| 112 | 147 // main function; parse command line, set up assembler state, and run the |
| 148 // assembler on the first file | |
| 149 int main(int argc, char **argv) | |
| 150 { | |
| 151 argp_parse(&argp, argc, argv, 0, 0, NULL); | |
|
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152 if (ninputfiles == 0) |
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153 { |
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154 fprintf(stderr, "No input files\n"); |
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155 exit(1); |
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156 } |
| 115 | 157 |
|
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158 unlink(outfile); |
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159 |
| 119 | 160 // handle the linker script |
| 117 | 161 setup_script(); |
| 162 | |
| 115 | 163 // read the input files |
| 164 read_files(); | |
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165 |
| 119 | 166 // resolve section bases and section order |
| 167 resolve_sections(); | |
| 168 | |
| 121 | 169 // resolve incomplete references |
| 170 resolve_references(); | |
| 171 | |
| 172 // do the actual output | |
| 173 do_output(); | |
| 174 | |
| 112 | 175 exit(0); |
| 176 } |