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323
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1 /*
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2 main.c
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3
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4 Copyright © 2010 William Astle
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5
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6 This file is part of LWTOOLS.
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7
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8 LWTOOLS is free software: you can redistribute it and/or modify it under the
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9 terms of the GNU General Public License as published by the Free Software
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10 Foundation, either version 3 of the License, or (at your option) any later
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11 version.
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12
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13 This program is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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16 more details.
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17
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18 You should have received a copy of the GNU General Public License along with
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19 this program. If not, see <http://www.gnu.org/licenses/>.
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20 */
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21
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22 #include <config.h>
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23
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24 #include <argp.h>
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25 #include <stdio.h>
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26 #include <stdlib.h>
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27
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329
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28 #include <lw_alloc.h>
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325
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29 #include <lw_string.h>
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30 #include <lw_stringlist.h>
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335
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31 #include <lw_expr.h>
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325
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32
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323
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33 #include "lwasm.h"
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330
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34 #include "input.h"
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323
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35
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325
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36 extern int parse_pragma_string(asmstate_t *as, char *str);
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37
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323
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38 /* command line option handling */
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39 const char *argp_program_version = "lwasm from " PACKAGE_STRING;
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40 const char *argp_program_bug_address = PACKAGE_BUGREPORT;
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41 char *program_name;
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42
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43 static struct argp_option options[] =
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44 {
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45 { "output", 'o', "FILE", 0, "Output to FILE"},
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46 { "debug", 'd', 0, 0, "Set debug mode"},
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47 { "format", 'f', "TYPE", 0, "Select output format: decb, raw, obj, os9"},
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48 { "list", 'l', "FILE", OPTION_ARG_OPTIONAL, "Generate list [to FILE]"},
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49 { "decb", 'b', 0, 0, "Generate DECB .bin format output, equivalent of --format=decb"},
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50 { "raw", 'r', 0, 0, "Generate raw binary format output, equivalent of --format=raw"},
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51 { "obj", 0x100, 0, 0, "Generate proprietary object file format for later linking, equivalent of --format=obj" },
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52 { "depend", 0x101, 0, 0, "Output a dependency list to stdout; do not do any actual output though assembly is completed as usual" },
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53 { "pragma", 'p', "PRAGMA", 0, "Set an assembler pragma to any value understood by the \"pragma\" pseudo op"},
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54 { "6809", '9', 0, 0, "Set assembler to 6809 only mode" },
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55 { "6309", '3', 0, 0, "Set assembler to 6309 mode (default)" },
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56 { "includedir", 'I', "PATH", 0, "Add entry to include path" },
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57 { 0 }
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58 };
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59
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60
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61 static error_t parse_opts(int key, char *arg, struct argp_state *state)
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62 {
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63 asmstate_t *as = state -> input;
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64
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65 switch (key)
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66 {
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67 case 'I':
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325
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68 lw_stringlist_addstring(as -> include_list, arg);
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69 break;
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70
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323
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71 case 'o':
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325
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72 if (as -> output_file)
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73 lw_free(as -> output_file);
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74 as -> output_file = lw_strdup(arg);
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75 break;
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76
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323
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77 case 'd':
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78 as -> debug_level++;
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79 break;
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80
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81 case 'l':
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325
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82 if (as -> list_file)
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83 lw_free(as -> list_file);
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84 if (!arg)
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85 as -> list_file = NULL;
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86 else
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87 as -> list_file = lw_strdup(arg);
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88 as -> flags |= FLAG_LIST;
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89 break;
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90
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323
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91 case 'b':
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92 as -> output_format = OUTPUT_DECB;
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93 break;
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94
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95 case 'r':
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96 as -> output_format = OUTPUT_RAW;
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97 break;
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98
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99 case 0x100:
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100 as -> output_format = OUTPUT_OBJ;
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101 break;
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102
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103 case 0x101:
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325
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104 as -> flags |= FLAG_DEPEND;
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105 break;
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106
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323
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107 case 'f':
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108 if (!strcasecmp(arg, "decb"))
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109 as -> output_format = OUTPUT_DECB;
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110 else if (!strcasecmp(arg, "raw"))
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111 as -> output_format = OUTPUT_RAW;
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112 else if (!strcasecmp(arg, "obj"))
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113 as -> output_format = OUTPUT_OBJ;
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114 else if (!strcasecmp(arg, "os9"))
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115 {
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325
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116 as -> pragmas |= PRAGMA_DOLLARNOTLOCAL;
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323
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117 as -> output_format = OUTPUT_OS9;
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118 }
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119 else
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120 {
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121 fprintf(stderr, "Invalid output format: %s\n", arg);
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122 exit(1);
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123 }
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124 break;
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125
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126 case 'p':
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325
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127 if (parse_pragma_string(as, arg) == 0)
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128 {
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129 fprintf(stderr, "Unrecognized pragma string: %s\n", arg);
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130 exit(1);
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131 }
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132 break;
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133
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323
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134 case '9':
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135 as -> target = TARGET_6809;
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136 break;
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137
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138 case '3':
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139 as -> target = TARGET_6309;
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140 break;
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141
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142 case ARGP_KEY_END:
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143 break;
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144
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145 case ARGP_KEY_ARG:
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325
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146 lw_stringlist_addstring(as -> input_files, arg);
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323
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147 break;
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148
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149 default:
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150 return ARGP_ERR_UNKNOWN;
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151 }
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152 return 0;
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153 }
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154
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155 static struct argp argp =
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156 {
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157 options,
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158 parse_opts,
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159 "<input file>",
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160 "LWASM, a HD6309 and MC6809 cross-assembler"
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161 };
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162
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163 /*
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164 main function; parse command line, set up assembler state, and run the
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165 assembler on the first file
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166 */
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332
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167 extern void do_pass1(asmstate_t *as);
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342
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168 extern lw_expr_t lwasm_evaluate_special(int t, void *ptr);
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169 extern lw_expr_t lwasm_evaluate_var(char *var);
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332
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170
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323
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171 int main(int argc, char **argv)
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172 {
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173 /* assembler state */
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174 asmstate_t asmstate = { 0 };
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325
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175 program_name = argv[0];
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323
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176
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337
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177 lw_expr_set_special_handler(lwasm_evaluate_special);
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178 lw_expr_set_var_handler(lwasm_evaluate_var);
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179
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325
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180 /* initialize assembler state */
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329
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181 asmstate.include_list = lw_stringlist_create();
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325
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182 asmstate.input_files = lw_stringlist_create();
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183
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184 /* parse command line arguments */
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323
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185 argp_parse(&argp, argc, argv, 0, 0, &asmstate);
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186
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328
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187 if (!asmstate.output_file)
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188 {
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189 asmstate.output_file = lw_strdup("a.out");
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190 }
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191
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330
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192 input_init(&asmstate);
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193
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337
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194 do_pass1(&asmstate);
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323
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195 exit(0);
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196 }
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