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annotate lwlink/main.c @ 180:6ebb93b409ba
Added library paths and --section-base
| author | lost |
|---|---|
| date | Thu, 05 Mar 2009 02:23:25 +0000 |
| parents | 3706ede361ea |
| children | 833d392fec82 |
| 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> | |
| 33 | |
| 34 #include "lwlink.h" | |
| 35 | |
| 36 // command line option handling | |
| 142 | 37 const char *argp_program_version = "LWLINK from " PACKAGE_STRING; |
| 112 | 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 | |
| 117 | 49 case 's': |
| 50 // script file | |
| 51 scriptfile = arg; | |
| 52 break; | |
| 53 | |
| 112 | 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 | |
| 180 | 87 case 'l': |
| 88 add_input_library(arg); | |
| 89 break; | |
| 90 | |
| 91 case 'L': | |
| 92 add_library_search(arg); | |
| 93 break; | |
| 94 | |
| 95 case 0x100: | |
| 96 add_section_base(arg); | |
| 97 break; | |
| 98 | |
| 112 | 99 case ARGP_KEY_ARG: |
|
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100 add_input_file(arg); |
| 112 | 101 break; |
| 102 | |
| 103 default: | |
| 104 return ARGP_ERR_UNKNOWN; | |
| 105 } | |
| 106 return 0; | |
| 107 } | |
| 108 | |
| 109 static struct argp_option options[] = | |
| 110 { | |
| 111 { "output", 'o', "FILE", 0, | |
| 112 "Output to FILE"}, | |
| 113 { "debug", 'd', 0, 0, | |
| 114 "Set debug mode"}, | |
| 115 { "format", 'f', "TYPE", 0, | |
| 149 | 116 "Select output format: decb, raw"}, |
| 112 | 117 { "decb", 'b', 0, 0, |
| 118 "Generate DECB .bin format output, equivalent of --format=decb"}, | |
| 119 { "raw", 'r', 0, 0, | |
| 120 "Generate raw binary format output, equivalent of --format=raw"}, | |
|
125
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121 { "script", 's', "FILE", 0, |
| 180 | 122 "Specify the linking script (overrides the built in defaults)"}, |
| 123 { "library", 'l', "LIBSPEC", 0, | |
| 124 "Read library libLIBSPEC.a from the search path" }, | |
| 125 { "library-path", 'L', "DIR", 0, | |
| 126 "Add DIR to the library search path" }, | |
| 127 { "section-base", 0x100, "SECT=BASE", 0, | |
| 128 "Load section SECT at BASE" }, | |
| 112 | 129 { 0 } |
| 130 }; | |
| 131 | |
| 132 static struct argp argp = | |
| 133 { | |
| 134 options, | |
| 135 parse_opts, | |
| 136 "<input file> ...", | |
| 137 "LWLINK, a HD6309 and MC6809 cross-linker" | |
| 138 }; | |
| 139 | |
| 115 | 140 extern void read_files(void); |
| 117 | 141 extern void setup_script(void); |
| 119 | 142 extern void resolve_sections(void); |
| 121 | 143 extern void resolve_references(void); |
| 144 extern void do_output(void); | |
| 115 | 145 |
| 112 | 146 // main function; parse command line, set up assembler state, and run the |
| 147 // assembler on the first file | |
| 148 int main(int argc, char **argv) | |
| 149 { | |
| 150 argp_parse(&argp, argc, argv, 0, 0, NULL); | |
|
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151 if (ninputfiles == 0) |
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152 { |
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153 fprintf(stderr, "No input files\n"); |
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154 exit(1); |
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155 } |
| 115 | 156 |
| 119 | 157 // handle the linker script |
| 117 | 158 setup_script(); |
| 159 | |
| 115 | 160 // read the input files |
| 161 read_files(); | |
|
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162 |
| 119 | 163 // resolve section bases and section order |
| 164 resolve_sections(); | |
| 165 | |
| 121 | 166 // resolve incomplete references |
| 167 resolve_references(); | |
| 168 | |
| 169 // do the actual output | |
| 170 do_output(); | |
| 171 | |
| 112 | 172 exit(0); |
| 173 } |