David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 1 | /* |
| 2 | * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation. 2005. |
| 3 | * |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or |
| 6 | * modify it under the terms of the GNU General Public License as |
| 7 | * published by the Free Software Foundation; either version 2 of the |
| 8 | * License, or (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | * General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
| 18 | * USA |
| 19 | */ |
| 20 | |
David Gibson | 86dbcbd | 2005-10-19 16:00:31 +1000 | [diff] [blame] | 21 | %option noyywrap nounput yylineno |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 22 | |
Jon Loeliger | e45e6fd | 2007-03-23 15:18:41 -0500 | [diff] [blame] | 23 | %x INCLUDE |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 24 | %x CELLDATA |
| 25 | %x BYTESTRING |
David Gibson | f0517db | 2005-07-15 17:14:24 +1000 | [diff] [blame] | 26 | %x MEMRESERVE |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 27 | |
| 28 | PROPCHAR [a-zA-Z0-9,._+*#?-] |
| 29 | UNITCHAR [0-9a-f,] |
David Gibson | 41eecd4 | 2007-06-07 12:07:35 +1000 | [diff] [blame] | 30 | WS [[:space:]] |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 31 | |
David Gibson | 81f2e89 | 2005-06-16 17:04:00 +1000 | [diff] [blame] | 32 | REFCHAR ({PROPCHAR}|{UNITCHAR}|[/@]) |
| 33 | |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 34 | %{ |
| 35 | #include "dtc.h" |
Jon Loeliger | ce34ae3 | 2007-03-28 17:05:33 -0500 | [diff] [blame] | 36 | #include "srcpos.h" |
David Gibson | 4102d84 | 2005-06-16 14:36:37 +1000 | [diff] [blame] | 37 | #include "dtc-parser.tab.h" |
Jon Loeliger | e45e6fd | 2007-03-23 15:18:41 -0500 | [diff] [blame] | 38 | |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 39 | |
David Gibson | 81f2e89 | 2005-06-16 17:04:00 +1000 | [diff] [blame] | 40 | /*#define LEXDEBUG 1*/ |
| 41 | |
| 42 | #ifdef LEXDEBUG |
| 43 | #define DPRINT(fmt, ...) fprintf(stderr, fmt, ##__VA_ARGS__) |
| 44 | #else |
| 45 | #define DPRINT(fmt, ...) do { } while (0) |
| 46 | #endif |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 47 | |
David Gibson | 86dbcbd | 2005-10-19 16:00:31 +1000 | [diff] [blame] | 48 | |
| 49 | |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 50 | %} |
| 51 | |
David Gibson | c5c437e | 2005-07-04 13:53:14 +1000 | [diff] [blame] | 52 | %% |
| 53 | |
Jon Loeliger | ce34ae3 | 2007-03-28 17:05:33 -0500 | [diff] [blame] | 54 | "/include/" BEGIN(INCLUDE); |
Jon Loeliger | e45e6fd | 2007-03-23 15:18:41 -0500 | [diff] [blame] | 55 | |
Jon Loeliger | e45e6fd | 2007-03-23 15:18:41 -0500 | [diff] [blame] | 56 | <INCLUDE>\"[^"\n]*\" { |
| 57 | yytext[strlen(yytext) - 1] = 0; |
| 58 | if (!push_input_file(yytext + 1)) { |
| 59 | /* Some unrecoverable error.*/ |
| 60 | exit(1); |
| 61 | } |
| 62 | BEGIN(INITIAL); |
| 63 | } |
| 64 | |
| 65 | |
| 66 | <<EOF>> { |
| 67 | if (!pop_input_file()) { |
| 68 | yyterminate(); |
| 69 | } |
| 70 | } |
| 71 | |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 72 | \"[^"]*\" { |
Jon Loeliger | e45e6fd | 2007-03-23 15:18:41 -0500 | [diff] [blame] | 73 | yylloc.filenum = srcpos_filenum; |
David Gibson | 86dbcbd | 2005-10-19 16:00:31 +1000 | [diff] [blame] | 74 | yylloc.first_line = yylineno; |
David Gibson | 81f2e89 | 2005-06-16 17:04:00 +1000 | [diff] [blame] | 75 | DPRINT("String: %s\n", yytext); |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 76 | yylval.data = data_copy_escape_string(yytext+1, |
| 77 | yyleng-2); |
David Gibson | 86dbcbd | 2005-10-19 16:00:31 +1000 | [diff] [blame] | 78 | yylloc.first_line = yylineno; |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 79 | return DT_STRING; |
| 80 | } |
| 81 | |
David Gibson | f0517db | 2005-07-15 17:14:24 +1000 | [diff] [blame] | 82 | "/memreserve/" { |
Jon Loeliger | e45e6fd | 2007-03-23 15:18:41 -0500 | [diff] [blame] | 83 | yylloc.filenum = srcpos_filenum; |
David Gibson | 86dbcbd | 2005-10-19 16:00:31 +1000 | [diff] [blame] | 84 | yylloc.first_line = yylineno; |
David Gibson | f0517db | 2005-07-15 17:14:24 +1000 | [diff] [blame] | 85 | DPRINT("Keyword: /memreserve/\n"); |
| 86 | BEGIN(MEMRESERVE); |
| 87 | return DT_MEMRESERVE; |
| 88 | } |
| 89 | |
| 90 | <MEMRESERVE>[0-9a-fA-F]+ { |
Jon Loeliger | e45e6fd | 2007-03-23 15:18:41 -0500 | [diff] [blame] | 91 | yylloc.filenum = srcpos_filenum; |
David Gibson | 86dbcbd | 2005-10-19 16:00:31 +1000 | [diff] [blame] | 92 | yylloc.first_line = yylineno; |
David Gibson | f0517db | 2005-07-15 17:14:24 +1000 | [diff] [blame] | 93 | if (yyleng > 2*sizeof(yylval.addr)) { |
| 94 | fprintf(stderr, "Address value %s too large\n", |
| 95 | yytext); |
| 96 | } |
| 97 | yylval.addr = (u64) strtoull(yytext, NULL, 16); |
| 98 | DPRINT("Addr: %llx\n", |
| 99 | (unsigned long long)yylval.addr); |
| 100 | return DT_ADDR; |
| 101 | } |
| 102 | |
| 103 | <MEMRESERVE>";" { |
Jon Loeliger | e45e6fd | 2007-03-23 15:18:41 -0500 | [diff] [blame] | 104 | yylloc.filenum = srcpos_filenum; |
David Gibson | 86dbcbd | 2005-10-19 16:00:31 +1000 | [diff] [blame] | 105 | yylloc.first_line = yylineno; |
David Gibson | f0517db | 2005-07-15 17:14:24 +1000 | [diff] [blame] | 106 | DPRINT("/MEMRESERVE\n"); |
| 107 | BEGIN(INITIAL); |
| 108 | return ';'; |
| 109 | } |
Milton Miller | ac6a5e2 | 2007-07-07 01:18:50 -0500 | [diff] [blame] | 110 | |
| 111 | <*>[a-zA-Z_][a-zA-Z0-9_]*: { |
| 112 | yylloc.filenum = srcpos_filenum; |
| 113 | yylloc.first_line = yylineno; |
| 114 | DPRINT("Label: %s\n", yytext); |
| 115 | yylval.str = strdup(yytext); |
| 116 | yylval.str[yyleng-1] = '\0'; |
| 117 | return DT_LABEL; |
| 118 | } |
| 119 | |
Jon Loeliger | af0278a | 2007-02-15 10:59:27 -0600 | [diff] [blame] | 120 | <CELLDATA>[bodh]# { |
Jon Loeliger | e45e6fd | 2007-03-23 15:18:41 -0500 | [diff] [blame] | 121 | yylloc.filenum = srcpos_filenum; |
Jon Loeliger | af0278a | 2007-02-15 10:59:27 -0600 | [diff] [blame] | 122 | yylloc.first_line = yylineno; |
| 123 | if (*yytext == 'b') |
| 124 | yylval.cbase = 2; |
| 125 | else if (*yytext == 'o') |
| 126 | yylval.cbase = 8; |
| 127 | else if (*yytext == 'd') |
| 128 | yylval.cbase = 10; |
| 129 | else |
| 130 | yylval.cbase = 16; |
| 131 | DPRINT("Base: %d\n", yylval.cbase); |
| 132 | return DT_BASE; |
| 133 | } |
David Gibson | f0517db | 2005-07-15 17:14:24 +1000 | [diff] [blame] | 134 | |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 135 | <CELLDATA>[0-9a-fA-F]+ { |
Jon Loeliger | e45e6fd | 2007-03-23 15:18:41 -0500 | [diff] [blame] | 136 | yylloc.filenum = srcpos_filenum; |
David Gibson | 86dbcbd | 2005-10-19 16:00:31 +1000 | [diff] [blame] | 137 | yylloc.first_line = yylineno; |
Jon Loeliger | af0278a | 2007-02-15 10:59:27 -0600 | [diff] [blame] | 138 | yylval.str = strdup(yytext); |
| 139 | DPRINT("Cell: '%s'\n", yylval.str); |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 140 | return DT_CELL; |
| 141 | } |
| 142 | |
| 143 | <CELLDATA>">" { |
Jon Loeliger | e45e6fd | 2007-03-23 15:18:41 -0500 | [diff] [blame] | 144 | yylloc.filenum = srcpos_filenum; |
David Gibson | 86dbcbd | 2005-10-19 16:00:31 +1000 | [diff] [blame] | 145 | yylloc.first_line = yylineno; |
David Gibson | 81f2e89 | 2005-06-16 17:04:00 +1000 | [diff] [blame] | 146 | DPRINT("/CELLDATA\n"); |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 147 | BEGIN(INITIAL); |
| 148 | return '>'; |
| 149 | } |
| 150 | |
David Gibson | 81f2e89 | 2005-06-16 17:04:00 +1000 | [diff] [blame] | 151 | <CELLDATA>\&{REFCHAR}* { |
Jon Loeliger | e45e6fd | 2007-03-23 15:18:41 -0500 | [diff] [blame] | 152 | yylloc.filenum = srcpos_filenum; |
David Gibson | 86dbcbd | 2005-10-19 16:00:31 +1000 | [diff] [blame] | 153 | yylloc.first_line = yylineno; |
David Gibson | 81f2e89 | 2005-06-16 17:04:00 +1000 | [diff] [blame] | 154 | DPRINT("Ref: %s\n", yytext+1); |
| 155 | yylval.str = strdup(yytext+1); |
| 156 | return DT_REF; |
| 157 | } |
| 158 | |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 159 | <BYTESTRING>[0-9a-fA-F]{2} { |
Jon Loeliger | e45e6fd | 2007-03-23 15:18:41 -0500 | [diff] [blame] | 160 | yylloc.filenum = srcpos_filenum; |
David Gibson | 86dbcbd | 2005-10-19 16:00:31 +1000 | [diff] [blame] | 161 | yylloc.first_line = yylineno; |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 162 | yylval.byte = strtol(yytext, NULL, 16); |
David Gibson | 81f2e89 | 2005-06-16 17:04:00 +1000 | [diff] [blame] | 163 | DPRINT("Byte: %02x\n", (int)yylval.byte); |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 164 | return DT_BYTE; |
| 165 | } |
| 166 | |
| 167 | <BYTESTRING>"]" { |
Jon Loeliger | e45e6fd | 2007-03-23 15:18:41 -0500 | [diff] [blame] | 168 | yylloc.filenum = srcpos_filenum; |
David Gibson | 86dbcbd | 2005-10-19 16:00:31 +1000 | [diff] [blame] | 169 | yylloc.first_line = yylineno; |
David Gibson | 81f2e89 | 2005-06-16 17:04:00 +1000 | [diff] [blame] | 170 | DPRINT("/BYTESTRING\n"); |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 171 | BEGIN(INITIAL); |
| 172 | return ']'; |
| 173 | } |
| 174 | |
David Gibson | 32da475 | 2007-02-07 16:37:50 +1100 | [diff] [blame] | 175 | , { /* Technically this is a valid property name, |
| 176 | but we'd rather use it as punctuation, so detect it |
| 177 | here in preference */ |
Jon Loeliger | e45e6fd | 2007-03-23 15:18:41 -0500 | [diff] [blame] | 178 | yylloc.filenum = srcpos_filenum; |
David Gibson | 32da475 | 2007-02-07 16:37:50 +1100 | [diff] [blame] | 179 | yylloc.first_line = yylineno; |
| 180 | DPRINT("Char (propname like): %c (\\x%02x)\n", yytext[0], |
| 181 | (unsigned)yytext[0]); |
| 182 | return yytext[0]; |
| 183 | } |
| 184 | |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 185 | {PROPCHAR}+ { |
Jon Loeliger | e45e6fd | 2007-03-23 15:18:41 -0500 | [diff] [blame] | 186 | yylloc.filenum = srcpos_filenum; |
David Gibson | 86dbcbd | 2005-10-19 16:00:31 +1000 | [diff] [blame] | 187 | yylloc.first_line = yylineno; |
David Gibson | 81f2e89 | 2005-06-16 17:04:00 +1000 | [diff] [blame] | 188 | DPRINT("PropName: %s\n", yytext); |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 189 | yylval.str = strdup(yytext); |
| 190 | return DT_PROPNAME; |
| 191 | } |
| 192 | |
David Gibson | 4102d84 | 2005-06-16 14:36:37 +1000 | [diff] [blame] | 193 | {PROPCHAR}+(@{UNITCHAR}+)? { |
Jon Loeliger | e45e6fd | 2007-03-23 15:18:41 -0500 | [diff] [blame] | 194 | yylloc.filenum = srcpos_filenum; |
David Gibson | 86dbcbd | 2005-10-19 16:00:31 +1000 | [diff] [blame] | 195 | yylloc.first_line = yylineno; |
David Gibson | 81f2e89 | 2005-06-16 17:04:00 +1000 | [diff] [blame] | 196 | DPRINT("NodeName: %s\n", yytext); |
David Gibson | 4102d84 | 2005-06-16 14:36:37 +1000 | [diff] [blame] | 197 | yylval.str = strdup(yytext); |
| 198 | return DT_NODENAME; |
| 199 | } |
| 200 | |
| 201 | |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 202 | <*>{WS}+ /* eat whitespace */ |
| 203 | |
| 204 | <*>"/*"([^*]|\*+[^*/])*\*+"/" { |
Jon Loeliger | e45e6fd | 2007-03-23 15:18:41 -0500 | [diff] [blame] | 205 | yylloc.filenum = srcpos_filenum; |
David Gibson | 86dbcbd | 2005-10-19 16:00:31 +1000 | [diff] [blame] | 206 | yylloc.first_line = yylineno; |
David Gibson | 81f2e89 | 2005-06-16 17:04:00 +1000 | [diff] [blame] | 207 | DPRINT("Comment: %s\n", yytext); |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 208 | /* eat comments */ |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 209 | } |
| 210 | |
| 211 | <*>"//".*\n /* eat line comments */ |
| 212 | |
David Gibson | f0517db | 2005-07-15 17:14:24 +1000 | [diff] [blame] | 213 | <*>. { |
Jon Loeliger | e45e6fd | 2007-03-23 15:18:41 -0500 | [diff] [blame] | 214 | yylloc.filenum = srcpos_filenum; |
David Gibson | 86dbcbd | 2005-10-19 16:00:31 +1000 | [diff] [blame] | 215 | yylloc.first_line = yylineno; |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 216 | switch (yytext[0]) { |
| 217 | case '<': |
David Gibson | 81f2e89 | 2005-06-16 17:04:00 +1000 | [diff] [blame] | 218 | DPRINT("CELLDATA\n"); |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 219 | BEGIN(CELLDATA); |
| 220 | break; |
| 221 | case '[': |
David Gibson | 81f2e89 | 2005-06-16 17:04:00 +1000 | [diff] [blame] | 222 | DPRINT("BYTESTRING\n"); |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 223 | BEGIN(BYTESTRING); |
| 224 | break; |
| 225 | default: |
| 226 | |
David Gibson | 81f2e89 | 2005-06-16 17:04:00 +1000 | [diff] [blame] | 227 | DPRINT("Char: %c (\\x%02x)\n", yytext[0], |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 228 | (unsigned)yytext[0]); |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 229 | break; |
| 230 | } |
| 231 | |
| 232 | return yytext[0]; |
| 233 | } |
| 234 | |
| 235 | %% |
Jon Loeliger | ce34ae3 | 2007-03-28 17:05:33 -0500 | [diff] [blame] | 236 | |
| 237 | |
| 238 | /* |
| 239 | * Stack of nested include file contexts. |
| 240 | */ |
| 241 | |
| 242 | struct incl_file { |
| 243 | int filenum; |
| 244 | FILE *file; |
| 245 | YY_BUFFER_STATE yy_prev_buf; |
| 246 | int yy_prev_lineno; |
| 247 | struct incl_file *prev; |
| 248 | }; |
| 249 | |
| 250 | struct incl_file *incl_file_stack; |
| 251 | |
| 252 | |
| 253 | /* |
| 254 | * Detect infinite include recursion. |
| 255 | */ |
| 256 | #define MAX_INCLUDE_DEPTH (100) |
| 257 | |
| 258 | static int incl_depth = 0; |
| 259 | |
| 260 | |
| 261 | int push_input_file(const char *filename) |
| 262 | { |
| 263 | FILE *f; |
| 264 | struct incl_file *incl_file; |
| 265 | |
| 266 | if (!filename) { |
| 267 | yyerror("No include file name given."); |
| 268 | return 0; |
| 269 | } |
| 270 | |
| 271 | if (incl_depth++ >= MAX_INCLUDE_DEPTH) { |
| 272 | yyerror("Includes nested too deeply"); |
| 273 | return 0; |
| 274 | } |
| 275 | |
| 276 | f = dtc_open_file(filename); |
| 277 | |
| 278 | incl_file = malloc(sizeof(struct incl_file)); |
| 279 | if (!incl_file) { |
| 280 | yyerror("Can not allocate include file space."); |
| 281 | return 0; |
| 282 | } |
| 283 | |
| 284 | /* |
| 285 | * Save current context. |
| 286 | */ |
| 287 | incl_file->yy_prev_buf = YY_CURRENT_BUFFER; |
| 288 | incl_file->yy_prev_lineno = yylineno; |
| 289 | incl_file->filenum = srcpos_filenum; |
| 290 | incl_file->file = yyin; |
| 291 | incl_file->prev = incl_file_stack; |
| 292 | |
| 293 | incl_file_stack = incl_file; |
| 294 | |
| 295 | /* |
| 296 | * Establish new context. |
| 297 | */ |
| 298 | srcpos_filenum = lookup_file_name(filename, 0); |
| 299 | yylineno = 1; |
| 300 | yyin = f; |
| 301 | yy_switch_to_buffer(yy_create_buffer(yyin, YY_BUF_SIZE)); |
| 302 | |
| 303 | return 1; |
| 304 | } |
| 305 | |
| 306 | |
| 307 | int pop_input_file(void) |
| 308 | { |
| 309 | struct incl_file *incl_file; |
| 310 | |
| 311 | if (incl_file_stack == 0) |
| 312 | return 0; |
| 313 | |
| 314 | fclose(yyin); |
| 315 | |
| 316 | /* |
| 317 | * Pop. |
| 318 | */ |
| 319 | --incl_depth; |
| 320 | incl_file = incl_file_stack; |
| 321 | incl_file_stack = incl_file->prev; |
| 322 | |
| 323 | /* |
| 324 | * Recover old context. |
| 325 | */ |
| 326 | yy_delete_buffer(YY_CURRENT_BUFFER); |
| 327 | yy_switch_to_buffer(incl_file->yy_prev_buf); |
| 328 | yylineno = incl_file->yy_prev_lineno; |
| 329 | srcpos_filenum = incl_file->filenum; |
| 330 | yyin = incl_file->file; |
| 331 | |
| 332 | /* |
| 333 | * Free old state. |
| 334 | */ |
| 335 | free(incl_file); |
| 336 | |
| 337 | if (YY_CURRENT_BUFFER == 0) |
| 338 | return 0; |
| 339 | |
| 340 | return 1; |
| 341 | } |