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294
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1 /*
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2 main.c
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3 Copyright © 2008 William Astle
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4
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5 This file is part of LWLINK.
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6
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7 LWLINK is free software: you can redistribute it and/or modify it under the
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8 terms of the GNU General Public License as published by the Free Software
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9 Foundation, either version 3 of the License, or (at your option) any later
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10 version.
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11
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12 This program is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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15 more details.
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16
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17 You should have received a copy of the GNU General Public License along with
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18 this program. If not, see <http://www.gnu.org/licenses/>.
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19
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20
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21 Implements the program startup code
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22
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23 */
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24
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25 #ifdef HAVE_CONFIG_H
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26 #include "config.h"
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27 #endif
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28
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29 #include <argp.h>
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30 #include <errno.h>
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31 #include <stdio.h>
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32 #include <stdlib.h>
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33
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34 #include "lwlink.h"
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35
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36 // command line option handling
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37 const char *argp_program_version = PACKAGE_STRING;
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38 const char *argp_program_bug_address = PACKAGE_BUGREPORT;
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39
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40 static error_t parse_opts(int key, char *arg, struct argp_state *state)
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41 {
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42 switch (key)
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43 {
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44 case 'o':
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45 // output
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46 if (outfile)
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47 {
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48 }
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49 outfile = arg;
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50 break;
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51
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52 case 'd':
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53 // debug
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54 debug_level++;
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55 break;
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56
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57 case 'b':
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58 // decb output
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59 outformat = OUTPUT_DECB;
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60 break;
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61
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62 case 'r':
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63 // raw binary output
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64 outformat = OUTPUT_RAW;
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65 break;
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66
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67 case 'f':
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68 // output format
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69 if (!strcasecmp(arg, "decb"))
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70 outformat = OUTPUT_DECB;
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71 else if (!strcasecmp(arg, "raw"))
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72 outformat = OUTPUT_RAW;
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73 else
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74 {
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75 fprintf(stderr, "Invalid output format: %s\n", arg);
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76 exit(1);
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77 }
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78 break;
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79 case ARGP_KEY_END:
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80 // done; sanity check
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81 if (!outfile)
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82 outfile = "a.out";
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83 break;
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84
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85 case ARGP_KEY_ARG:
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86 // FIXME: input files!
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87 break;
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88
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89 default:
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90 return ARGP_ERR_UNKNOWN;
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91 }
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92 return 0;
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93 }
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94
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95 static struct argp_option options[] =
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96 {
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97 { "output", 'o', "FILE", 0,
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98 "Output to FILE"},
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99 { "debug", 'd', 0, 0,
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100 "Set debug mode"},
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101 { "format", 'f', "TYPE", 0,
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102 "Select output format: decb, raw, obj"},
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103 { "decb", 'b', 0, 0,
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104 "Generate DECB .bin format output, equivalent of --format=decb"},
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105 { "raw", 'r', 0, 0,
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106 "Generate raw binary format output, equivalent of --format=raw"},
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107 { 0 }
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108 };
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109
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110 static struct argp argp =
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111 {
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112 options,
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113 parse_opts,
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114 "<input file> ...",
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115 "LWLINK, a HD6309 and MC6809 cross-linker"
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116 };
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117
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118 // main function; parse command line, set up assembler state, and run the
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119 // assembler on the first file
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120 int main(int argc, char **argv)
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121 {
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122 argp_parse(&argp, argc, argv, 0, 0, NULL);
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123
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124 exit(0);
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125 }
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