|
136
|
1 /*
|
|
|
2 main.c
|
|
|
3 Copyright © 2009 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 outfile = arg;
|
|
|
47 break;
|
|
|
48
|
|
|
49 case 's':
|
|
|
50 // script file
|
|
|
51 scriptfile = arg;
|
|
|
52 break;
|
|
|
53
|
|
|
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:
|
|
|
88 add_input_file(arg);
|
|
|
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"},
|
|
|
109 { "script", 's', "FILE", 0,
|
|
|
110 "Specify the linking script (overrides the build in defaults)"},
|
|
|
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
|
|
|
122 extern void read_files(void);
|
|
|
123 extern void setup_script(void);
|
|
|
124 extern void resolve_sections(void);
|
|
|
125 extern void resolve_references(void);
|
|
|
126 extern void do_output(void);
|
|
|
127
|
|
|
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);
|
|
|
133 if (ninputfiles == 0)
|
|
|
134 {
|
|
|
135 fprintf(stderr, "No input files\n");
|
|
|
136 exit(1);
|
|
|
137 }
|
|
|
138
|
|
|
139 // handle the linker script
|
|
|
140 setup_script();
|
|
|
141
|
|
|
142 // read the input files
|
|
|
143 read_files();
|
|
|
144
|
|
|
145 // resolve section bases and section order
|
|
|
146 resolve_sections();
|
|
|
147
|
|
|
148 // resolve incomplete references
|
|
|
149 resolve_references();
|
|
|
150
|
|
|
151 // do the actual output
|
|
|
152 do_output();
|
|
|
153
|
|
|
154 exit(0);
|
|
|
155 }
|
