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comparison lwlink/trunk/src/main.c @ 112:a567dbb3f1d4

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command line options
author lost
date Sat, 17 Jan 2009 16:55:53 +0000
parents d92c9f230b8f
children c65fcec346cd
comparison
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111:d92c9f230b8f 112:a567dbb3f1d4
1 /*
2 main.c
3 Copyright © 2008 William Astle
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 if (outfile)
47 {
48 }
49 outfile = arg;
50 break;
51
52 case 'd':
53 // debug
54 debug_level++;
55 break;
56
57 case 'b':
58 // decb output
59 outformat = OUTPUT_DECB;
60 break;
61
62 case 'r':
63 // raw binary output
64 outformat = OUTPUT_RAW;
65 break;
66
67 case 'f':
68 // output format
69 if (!strcasecmp(arg, "decb"))
70 outformat = OUTPUT_DECB;
71 else if (!strcasecmp(arg, "raw"))
72 outformat = OUTPUT_RAW;
73 else
74 {
75 fprintf(stderr, "Invalid output format: %s\n", arg);
76 exit(1);
77 }
78 break;
79 case ARGP_KEY_END:
80 // done; sanity check
81 if (!outfile)
82 outfile = "a.out";
83 break;
84
85 case ARGP_KEY_ARG:
86 // FIXME: input files!
87 break;
88
89 default:
90 return ARGP_ERR_UNKNOWN;
91 }
92 return 0;
93 }
94
95 static struct argp_option options[] =
96 {
97 { "output", 'o', "FILE", 0,
98 "Output to FILE"},
99 { "debug", 'd', 0, 0,
100 "Set debug mode"},
101 { "format", 'f', "TYPE", 0,
102 "Select output format: decb, raw, obj"},
103 { "decb", 'b', 0, 0,
104 "Generate DECB .bin format output, equivalent of --format=decb"},
105 { "raw", 'r', 0, 0,
106 "Generate raw binary format output, equivalent of --format=raw"},
107 { 0 }
108 };
109
110 static struct argp argp =
111 {
112 options,
113 parse_opts,
114 "<input file> ...",
115 "LWLINK, a HD6309 and MC6809 cross-linker"
116 };
117
118 // main function; parse command line, set up assembler state, and run the
119 // assembler on the first file
120 int main(int argc, char **argv)
121 {
122 argp_parse(&argp, argc, argv, 0, 0, NULL);
123
124 exit(0);
125 }