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annotate src/main.c @ 318:be4d471f3de5 lwlink-1.0
Moved old tags and branches for lwlink to global tags/branches dirs
| author | lost |
|---|---|
| date | Wed, 28 Jan 2009 05:54:43 +0000 |
| parents | 87c4e65074f0 |
| children |
| rev | line source |
|---|---|
| 294 | 1 /* |
| 2 main.c | |
| 300 | 3 Copyright © 2009 William Astle |
| 294 | 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> | |
| 33 | |
| 34 #include "lwlink.h" | |
| 35 | |
| 36 // command line option handling | |
| 37 const char *argp_program_version = PACKAGE_STRING; | |
| 38 const char *argp_program_bug_address = PACKAGE_BUGREPORT; | |
| 39 | |
| 40 static error_t parse_opts(int key, char *arg, struct argp_state *state) | |
| 41 { | |
| 42 switch (key) | |
| 43 { | |
| 44 case 'o': | |
| 45 // output | |
| 46 outfile = arg; | |
| 47 break; | |
| 48 | |
| 299 | 49 case 's': |
| 50 // script file | |
| 51 scriptfile = arg; | |
| 52 break; | |
| 53 | |
| 294 | 54 case 'd': |
| 55 // debug | |
| 56 debug_level++; | |
| 57 break; | |
| 58 | |
| 59 case 'b': | |
| 60 // decb output | |
| 61 outformat = OUTPUT_DECB; | |
| 62 break; | |
| 63 | |
| 64 case 'r': | |
| 65 // raw binary output | |
| 66 outformat = OUTPUT_RAW; | |
| 67 break; | |
| 68 | |
| 69 case 'f': | |
| 70 // output format | |
| 71 if (!strcasecmp(arg, "decb")) | |
| 72 outformat = OUTPUT_DECB; | |
| 73 else if (!strcasecmp(arg, "raw")) | |
| 74 outformat = OUTPUT_RAW; | |
| 75 else | |
| 76 { | |
| 77 fprintf(stderr, "Invalid output format: %s\n", arg); | |
| 78 exit(1); | |
| 79 } | |
| 80 break; | |
| 81 case ARGP_KEY_END: | |
| 82 // done; sanity check | |
| 83 if (!outfile) | |
| 84 outfile = "a.out"; | |
| 85 break; | |
| 86 | |
| 87 case ARGP_KEY_ARG: | |
|
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88 add_input_file(arg); |
| 294 | 89 break; |
| 90 | |
| 91 default: | |
| 92 return ARGP_ERR_UNKNOWN; | |
| 93 } | |
| 94 return 0; | |
| 95 } | |
| 96 | |
| 97 static struct argp_option options[] = | |
| 98 { | |
| 99 { "output", 'o', "FILE", 0, | |
| 100 "Output to FILE"}, | |
| 101 { "debug", 'd', 0, 0, | |
| 102 "Set debug mode"}, | |
| 103 { "format", 'f', "TYPE", 0, | |
| 104 "Select output format: decb, raw, obj"}, | |
| 105 { "decb", 'b', 0, 0, | |
| 106 "Generate DECB .bin format output, equivalent of --format=decb"}, | |
| 107 { "raw", 'r', 0, 0, | |
| 108 "Generate raw binary format output, equivalent of --format=raw"}, | |
|
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109 { "script", 's', "FILE", 0, |
| 299 | 110 "Specify the linking script (overrides the build in defaults)"}, |
| 294 | 111 { 0 } |
| 112 }; | |
| 113 | |
| 114 static struct argp argp = | |
| 115 { | |
| 116 options, | |
| 117 parse_opts, | |
| 118 "<input file> ...", | |
| 119 "LWLINK, a HD6309 and MC6809 cross-linker" | |
| 120 }; | |
| 121 | |
| 297 | 122 extern void read_files(void); |
| 299 | 123 extern void setup_script(void); |
| 301 | 124 extern void resolve_sections(void); |
| 303 | 125 extern void resolve_references(void); |
| 126 extern void do_output(void); | |
| 297 | 127 |
| 294 | 128 // main function; parse command line, set up assembler state, and run the |
| 129 // assembler on the first file | |
| 130 int main(int argc, char **argv) | |
| 131 { | |
| 132 argp_parse(&argp, argc, argv, 0, 0, NULL); | |
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133 if (ninputfiles == 0) |
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134 { |
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135 fprintf(stderr, "No input files\n"); |
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136 exit(1); |
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137 } |
| 297 | 138 |
| 301 | 139 // handle the linker script |
| 299 | 140 setup_script(); |
| 141 | |
| 297 | 142 // read the input files |
| 143 read_files(); | |
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144 |
| 301 | 145 // resolve section bases and section order |
| 146 resolve_sections(); | |
| 147 | |
| 303 | 148 // resolve incomplete references |
| 149 resolve_references(); | |
| 150 | |
| 151 // do the actual output | |
| 152 do_output(); | |
| 153 | |
| 294 | 154 exit(0); |
| 155 } |