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188
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1 /*
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2
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3 This is the front-end program for the C compiler.
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4
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5 Copyright © 2011 William Astle
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6
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7 This file is part of LWTOOLS.
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8
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9 LWTOOLS is free software: you can redistribute it and/or modify it under the
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10 terms of the GNU General Public License as published by the Free Software
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11 Foundation, either version 3 of the License, or (at your option) any later
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12 version.
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13
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14 This program is distributed in the hope that it will be useful, but WITHOUT
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15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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17 more details.
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18
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19 You should have received a copy of the GNU General Public License along with
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20 this program. If not, see <http://www.gnu.org/licenses/>.
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21
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22 */
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23
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24 #include <stdio.h>
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25 #include <stdlib.h>
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26 #include <string.h>
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27
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28 #include <lw_alloc.h>
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29 #include <lw_string.h>
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30 #include <lw_cmdline.h>
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31
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32 /* command line option handling */
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33 #define PROGVER "lwcc from " PACKAGE_STRING
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34 char *program_name;
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35
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36 /* global state */
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37 char *output_file = NULL;
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38 int debug_level = 0;
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39
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40
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41 static struct lw_cmdline_options options[] =
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42 {
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43 { "output", 'o', "FILE", 0, "Output to FILE"},
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44 { "debug", 'd', "LEVEL", lw_cmdline_opt_optional, "Set debug mode"},
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45 { 0 }
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46 };
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47
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48
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49 static int parse_opts(int key, char *arg, void *state)
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50 {
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51 switch (key)
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52 {
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53 case 'o':
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54 if (output_file)
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55 lw_free(output_file);
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56 output_file = lw_strdup(arg);
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57 break;
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58
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59 case 'd':
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60 if (!arg)
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61 debug_level = 50;
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62 else
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63 debug_level = atoi(arg);
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64 break;
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65
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66 case lw_cmdline_key_end:
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67 break;
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68
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69 case lw_cmdline_key_arg:
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70 printf("Input file: %s\n", arg);
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71 break;
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72
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73 default:
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74 return lw_cmdline_err_unknown;
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75 }
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76 return 0;
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77 }
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78
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79 static struct lw_cmdline_parser cmdline_parser =
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80 {
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81 options,
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82 parse_opts,
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83 "INPUTFILE",
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84 "lwcc, a HD6309 and MC6809 cross-compiler\vPlease report bugs to lost@l-w.ca.",
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85 PROGVER
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86 };
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87
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88 int main(int argc, char **argv)
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89 {
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90 program_name = argv[0];
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91
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92 /* parse command line arguments */
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93 lw_cmdline_parse(&cmdline_parser, argc, argv, 0, 0, NULL);
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94
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95 if (!output_file)
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96 {
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97 output_file = lw_strdup("a.out");
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98 }
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99
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100 exit(0);
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101 }
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