1 %option nounput 2 3 %{ 4 5 /* Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 6 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 7 Free Software Foundation, Inc. 8 Written by Steve Chamberlain of Cygnus Support. 9 10 This file is part of the GNU Binutils. 11 12 This program is free software; you can redistribute it and/or modify 13 it under the terms of the GNU General Public License as published by 14 the Free Software Foundation; either version 3 of the License, or 15 (at your option) any later version. 16 17 This program is distributed in the hope that it will be useful, 18 but WITHOUT ANY WARRANTY; without even the implied warranty of 19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 20 GNU General Public License for more details. 21 22 You should have received a copy of the GNU General Public License 23 along with this program; if not, write to the Free Software 24 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 25 MA 02110-1301, USA. */ 26 27 #include "bfd.h" 28 #include "safe-ctype.h" 29 #include "bfdlink.h" 30 #include "ld.h" 31 #include "ldmisc.h" 32 #include "ldexp.h" 33 #include "ldlang.h" 34 #include <ldgram.h> 35 #include "ldfile.h" 36 #include "ldlex.h" 37 #include "ldmain.h" 38 #include "libiberty.h" 39 40 /* The type of top-level parser input. 41 yylex and yyparse (indirectly) both check this. */ 42 input_type parser_input; 43 44 /* Line number in the current input file. 45 (FIXME Actually, it doesn't appear to get reset for each file?) */ 46 unsigned int lineno = 1; 47 48 /* The string we are currently lexing, or NULL if we are reading a 49 file. */ 50 const char *lex_string = NULL; 51 52 /* Support for flex reading from more than one input file (stream). 53 `include_stack' is flex's input state for each open file; 54 `file_name_stack' is the file names. `lineno_stack' is the current 55 line numbers. 56 57 If `include_stack_ptr' is 0, we haven't started reading anything yet. 58 Otherwise, stack elements 0 through `include_stack_ptr - 1' are valid. */ 59 60 #undef YY_INPUT 61 #define YY_INPUT(buf,result,max_size) result = yy_input (buf, max_size) 62 63 #define MAX_INCLUDE_DEPTH 10 64 static YY_BUFFER_STATE include_stack[MAX_INCLUDE_DEPTH]; 65 static const char *file_name_stack[MAX_INCLUDE_DEPTH]; 66 static unsigned int lineno_stack[MAX_INCLUDE_DEPTH]; 67 static unsigned int sysrooted_stack[MAX_INCLUDE_DEPTH]; 68 static unsigned int include_stack_ptr = 0; 69 static int vers_node_nesting = 0; 70 71 static int yy_input (char *, int); 72 static void comment (void); 73 static void lex_warn_invalid (char *where, char *what); 74 75 /* STATES 76 EXPRESSION definitely in an expression 77 SCRIPT definitely in a script 78 BOTH either EXPRESSION or SCRIPT 79 DEFSYMEXP in an argument to -defsym 80 MRI in an MRI script 81 VERS_START starting a Sun style mapfile 82 VERS_SCRIPT a Sun style mapfile 83 VERS_NODE a node within a Sun style mapfile 84 */ 85 #define RTOKEN(x) { yylval.token = x; return x; } 86 87 /* Some versions of flex want this. */ 88 #ifndef yywrap 89 int yywrap (void) { return 1; } 90 #endif 91 %} 92 93 %option nounput 94 95 %a 4000 96 %o 5000 97 98 CMDFILENAMECHAR [_a-zA-Z0-9\/\.\\_\+\$\:\[\]\\\,\=\&\!\<\>\-\~] 99 CMDFILENAMECHAR1 [_a-zA-Z0-9\/\.\\_\+\$\:\[\]\\\,\=\&\!\<\>\~] 100 FILENAMECHAR1 [_a-zA-Z\/\.\\\$\_\~] 101 SYMBOLCHARN [_a-zA-Z\/\.\\\$\_\~0-9] 102 FILENAMECHAR [_a-zA-Z0-9\/\.\-\_\+\=\$\:\[\]\\\,\~] 103 WILDCHAR [_a-zA-Z0-9\/\.\-\_\+\=\$\:\[\]\\\,\~\?\*\^\!] 104 WHITE [ \t\n\r]+ 105 106 NOCFILENAMECHAR [_a-zA-Z0-9\/\.\-\_\+\$\:\[\]\\\~] 107 108 V_TAG [.$_a-zA-Z][._a-zA-Z0-9]* 109 V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)* 110 111 %s SCRIPT 112 %s EXPRESSION 113 %s BOTH 114 %s DEFSYMEXP 115 %s MRI 116 %s VERS_START 117 %s VERS_SCRIPT 118 %s VERS_NODE 119 %% 120 121 if (parser_input != input_selected) 122 { 123 /* The first token of the input determines the initial parser state. */ 124 input_type t = parser_input; 125 parser_input = input_selected; 126 switch (t) 127 { 128 case input_script: return INPUT_SCRIPT; break; 129 case input_mri_script: return INPUT_MRI_SCRIPT; break; 130 case input_version_script: return INPUT_VERSION_SCRIPT; break; 131 case input_dynamic_list: return INPUT_DYNAMIC_LIST; break; 132 case input_defsym: return INPUT_DEFSYM; break; 133 default: abort (); 134 } 135 } 136 137 <BOTH,SCRIPT,EXPRESSION,VERS_START,VERS_NODE,VERS_SCRIPT>"/*" { comment (); } 138 139 140 <DEFSYMEXP>"-" { RTOKEN('-');} 141 <DEFSYMEXP>"+" { RTOKEN('+');} 142 <DEFSYMEXP>{FILENAMECHAR1}{SYMBOLCHARN}* { yylval.name = xstrdup (yytext); return NAME; } 143 <DEFSYMEXP>"=" { RTOKEN('='); } 144 145 <MRI,EXPRESSION>"$"([0-9A-Fa-f])+ { 146 yylval.integer = bfd_scan_vma (yytext + 1, 0, 16); 147 yylval.bigint.str = NULL; 148 return INT; 149 } 150 151 <MRI,EXPRESSION>([0-9A-Fa-f])+(H|h|X|x|B|b|O|o|D|d) { 152 int ibase ; 153 switch (yytext[yyleng - 1]) { 154 case 'X': 155 case 'x': 156 case 'H': 157 case 'h': 158 ibase = 16; 159 break; 160 case 'O': 161 case 'o': 162 ibase = 8; 163 break; 164 case 'B': 165 case 'b': 166 ibase = 2; 167 break; 168 default: 169 ibase = 10; 170 } 171 yylval.integer = bfd_scan_vma (yytext, 0, 172 ibase); 173 yylval.bigint.str = NULL; 174 return INT; 175 } 176 <SCRIPT,DEFSYMEXP,MRI,BOTH,EXPRESSION>((("$"|0[xX])([0-9A-Fa-f])+)|(([0-9])+))(M|K|m|k)? { 177 char *s = yytext; 178 int ibase = 0; 179 180 if (*s == '$') 181 { 182 ++s; 183 ibase = 16; 184 } 185 yylval.integer = bfd_scan_vma (s, 0, ibase); 186 yylval.bigint.str = NULL; 187 if (yytext[yyleng - 1] == 'M' 188 || yytext[yyleng - 1] == 'm') 189 { 190 yylval.integer *= 1024 * 1024; 191 } 192 else if (yytext[yyleng - 1] == 'K' 193 || yytext[yyleng - 1]=='k') 194 { 195 yylval.integer *= 1024; 196 } 197 else if (yytext[0] == '0' 198 && (yytext[1] == 'x' 199 || yytext[1] == 'X')) 200 { 201 yylval.bigint.str = xstrdup (yytext + 2); 202 } 203 return INT; 204 } 205 <BOTH,SCRIPT,EXPRESSION,MRI>"]" { RTOKEN(']');} 206 <BOTH,SCRIPT,EXPRESSION,MRI>"[" { RTOKEN('[');} 207 <BOTH,SCRIPT,EXPRESSION,MRI>"<<=" { RTOKEN(LSHIFTEQ);} 208 <BOTH,SCRIPT,EXPRESSION,MRI>">>=" { RTOKEN(RSHIFTEQ);} 209 <BOTH,SCRIPT,EXPRESSION,MRI>"||" { RTOKEN(OROR);} 210 <BOTH,SCRIPT,EXPRESSION,MRI>"==" { RTOKEN(EQ);} 211 <BOTH,SCRIPT,EXPRESSION,MRI>"!=" { RTOKEN(NE);} 212 <BOTH,SCRIPT,EXPRESSION,MRI>">=" { RTOKEN(GE);} 213 <BOTH,SCRIPT,EXPRESSION,MRI>"<=" { RTOKEN(LE);} 214 <BOTH,SCRIPT,EXPRESSION,MRI>"<<" { RTOKEN(LSHIFT);} 215 <BOTH,SCRIPT,EXPRESSION,MRI>">>" { RTOKEN(RSHIFT);} 216 <BOTH,SCRIPT,EXPRESSION,MRI>"+=" { RTOKEN(PLUSEQ);} 217 <BOTH,SCRIPT,EXPRESSION,MRI>"-=" { RTOKEN(MINUSEQ);} 218 <BOTH,SCRIPT,EXPRESSION,MRI>"*=" { RTOKEN(MULTEQ);} 219 <BOTH,SCRIPT,EXPRESSION,MRI>"/=" { RTOKEN(DIVEQ);} 220 <BOTH,SCRIPT,EXPRESSION,MRI>"&=" { RTOKEN(ANDEQ);} 221 <BOTH,SCRIPT,EXPRESSION,MRI>"|=" { RTOKEN(OREQ);} 222 <BOTH,SCRIPT,EXPRESSION,MRI>"&&" { RTOKEN(ANDAND);} 223 <BOTH,SCRIPT,EXPRESSION,MRI>">" { RTOKEN('>');} 224 <BOTH,SCRIPT,EXPRESSION,MRI>"," { RTOKEN(',');} 225 <BOTH,SCRIPT,EXPRESSION,MRI>"&" { RTOKEN('&');} 226 <BOTH,SCRIPT,EXPRESSION,MRI>"|" { RTOKEN('|');} 227 <BOTH,SCRIPT,EXPRESSION,MRI>"~" { RTOKEN('~');} 228 <BOTH,SCRIPT,EXPRESSION,MRI>"!" { RTOKEN('!');} 229 <BOTH,SCRIPT,EXPRESSION,MRI>"?" { RTOKEN('?');} 230 <BOTH,SCRIPT,EXPRESSION,MRI>"*" { RTOKEN('*');} 231 <BOTH,SCRIPT,EXPRESSION,MRI>"+" { RTOKEN('+');} 232 <BOTH,SCRIPT,EXPRESSION,MRI>"-" { RTOKEN('-');} 233 <BOTH,SCRIPT,EXPRESSION,MRI>"/" { RTOKEN('/');} 234 <BOTH,SCRIPT,EXPRESSION,MRI>"%" { RTOKEN('%');} 235 <BOTH,SCRIPT,EXPRESSION,MRI>"<" { RTOKEN('<');} 236 <BOTH,SCRIPT,EXPRESSION,MRI>"=" { RTOKEN('=');} 237 <BOTH,SCRIPT,EXPRESSION,MRI>"}" { RTOKEN('}') ; } 238 <BOTH,SCRIPT,EXPRESSION,MRI>"{" { RTOKEN('{'); } 239 <BOTH,SCRIPT,EXPRESSION,MRI>")" { RTOKEN(')');} 240 <BOTH,SCRIPT,EXPRESSION,MRI>"(" { RTOKEN('(');} 241 <BOTH,SCRIPT,EXPRESSION,MRI>":" { RTOKEN(':'); } 242 <BOTH,SCRIPT,EXPRESSION,MRI>";" { RTOKEN(';');} 243 <BOTH,SCRIPT>"MEMORY" { RTOKEN(MEMORY);} 244 <BOTH,SCRIPT>"REGION_ALIAS" { RTOKEN(REGION_ALIAS);} 245 <BOTH,SCRIPT>"LD_FEATURE" { RTOKEN(LD_FEATURE);} 246 <BOTH,SCRIPT,EXPRESSION>"ORIGIN" { RTOKEN(ORIGIN);} 247 <BOTH,SCRIPT>"VERSION" { RTOKEN(VERSIONK);} 248 <EXPRESSION,BOTH,SCRIPT>"BLOCK" { RTOKEN(BLOCK);} 249 <EXPRESSION,BOTH,SCRIPT>"BIND" { RTOKEN(BIND);} 250 <BOTH,SCRIPT,EXPRESSION>"LENGTH" { RTOKEN(LENGTH);} 251 <EXPRESSION,BOTH,SCRIPT>"ALIGN" { RTOKEN(ALIGN_K);} 252 <EXPRESSION,BOTH,SCRIPT>"DATA_SEGMENT_ALIGN" { RTOKEN(DATA_SEGMENT_ALIGN);} 253 <EXPRESSION,BOTH,SCRIPT>"DATA_SEGMENT_RELRO_END" { RTOKEN(DATA_SEGMENT_RELRO_END);} 254 <EXPRESSION,BOTH,SCRIPT>"DATA_SEGMENT_END" { RTOKEN(DATA_SEGMENT_END);} 255 <EXPRESSION,BOTH,SCRIPT>"ADDR" { RTOKEN(ADDR);} 256 <EXPRESSION,BOTH,SCRIPT>"LOADADDR" { RTOKEN(LOADADDR);} 257 <EXPRESSION,BOTH,SCRIPT>"ALIGNOF" { RTOKEN(ALIGNOF); } 258 <EXPRESSION,BOTH>"MAX" { RTOKEN(MAX_K); } 259 <EXPRESSION,BOTH>"MIN" { RTOKEN(MIN_K); } 260 <EXPRESSION,BOTH,SCRIPT>"ASSERT" { RTOKEN(ASSERT_K); } 261 <BOTH,SCRIPT>"ENTRY" { RTOKEN(ENTRY);} 262 <BOTH,SCRIPT,MRI>"EXTERN" { RTOKEN(EXTERN);} 263 <EXPRESSION,BOTH,SCRIPT>"NEXT" { RTOKEN(NEXT);} 264 <EXPRESSION,BOTH,SCRIPT>"sizeof_headers" { RTOKEN(SIZEOF_HEADERS);} 265 <EXPRESSION,BOTH,SCRIPT>"SIZEOF_HEADERS" { RTOKEN(SIZEOF_HEADERS);} 266 <EXPRESSION,BOTH,SCRIPT>"SEGMENT_START" { RTOKEN(SEGMENT_START);} 267 <BOTH,SCRIPT>"MAP" { RTOKEN(MAP);} 268 <EXPRESSION,BOTH,SCRIPT>"SIZEOF" { RTOKEN(SIZEOF);} 269 <BOTH,SCRIPT>"TARGET" { RTOKEN(TARGET_K);} 270 <BOTH,SCRIPT>"SEARCH_DIR" { RTOKEN(SEARCH_DIR);} 271 <BOTH,SCRIPT>"OUTPUT" { RTOKEN(OUTPUT);} 272 <BOTH,SCRIPT>"INPUT" { RTOKEN(INPUT);} 273 <EXPRESSION,BOTH,SCRIPT>"GROUP" { RTOKEN(GROUP);} 274 <EXPRESSION,BOTH,SCRIPT>"AS_NEEDED" { RTOKEN(AS_NEEDED);} 275 <EXPRESSION,BOTH,SCRIPT>"DEFINED" { RTOKEN(DEFINED);} 276 <BOTH,SCRIPT>"CREATE_OBJECT_SYMBOLS" { RTOKEN(CREATE_OBJECT_SYMBOLS);} 277 <BOTH,SCRIPT>"CONSTRUCTORS" { RTOKEN( CONSTRUCTORS);} 278 <BOTH,SCRIPT>"FORCE_COMMON_ALLOCATION" { RTOKEN(FORCE_COMMON_ALLOCATION);} 279 <BOTH,SCRIPT>"INHIBIT_COMMON_ALLOCATION" { RTOKEN(INHIBIT_COMMON_ALLOCATION);} 280 <BOTH,SCRIPT>"SECTIONS" { RTOKEN(SECTIONS);} 281 <BOTH,SCRIPT>"INSERT" { RTOKEN(INSERT_K);} 282 <BOTH,SCRIPT>"AFTER" { RTOKEN(AFTER);} 283 <BOTH,SCRIPT>"BEFORE" { RTOKEN(BEFORE);} 284 <BOTH,SCRIPT>"FILL" { RTOKEN(FILL);} 285 <BOTH,SCRIPT>"STARTUP" { RTOKEN(STARTUP);} 286 <BOTH,SCRIPT>"OUTPUT_FORMAT" { RTOKEN(OUTPUT_FORMAT);} 287 <BOTH,SCRIPT>"OUTPUT_ARCH" { RTOKEN( OUTPUT_ARCH);} 288 <BOTH,SCRIPT>"HLL" { RTOKEN(HLL);} 289 <BOTH,SCRIPT>"SYSLIB" { RTOKEN(SYSLIB);} 290 <BOTH,SCRIPT>"FLOAT" { RTOKEN(FLOAT);} 291 <BOTH,SCRIPT>"QUAD" { RTOKEN( QUAD);} 292 <BOTH,SCRIPT>"SQUAD" { RTOKEN( SQUAD);} 293 <BOTH,SCRIPT>"LONG" { RTOKEN( LONG);} 294 <BOTH,SCRIPT>"SHORT" { RTOKEN( SHORT);} 295 <BOTH,SCRIPT>"BYTE" { RTOKEN( BYTE);} 296 <BOTH,SCRIPT>"NOFLOAT" { RTOKEN(NOFLOAT);} 297 <EXPRESSION,BOTH,SCRIPT>"NOCROSSREFS" { RTOKEN(NOCROSSREFS);} 298 <BOTH,SCRIPT>"OVERLAY" { RTOKEN(OVERLAY); } 299 <BOTH,SCRIPT>"SORT_BY_NAME" { RTOKEN(SORT_BY_NAME); } 300 <BOTH,SCRIPT>"SORT_BY_ALIGNMENT" { RTOKEN(SORT_BY_ALIGNMENT); } 301 <BOTH,SCRIPT>"SORT" { RTOKEN(SORT_BY_NAME); } 302 <BOTH,SCRIPT>"SORT_BY_INIT_PRIORITY" { RTOKEN(SORT_BY_INIT_PRIORITY); } 303 <BOTH,SCRIPT>"SORT_NONE" { RTOKEN(SORT_NONE); } 304 <EXPRESSION,BOTH,SCRIPT>"NOLOAD" { RTOKEN(NOLOAD);} 305 <EXPRESSION,BOTH,SCRIPT>"DSECT" { RTOKEN(DSECT);} 306 <EXPRESSION,BOTH,SCRIPT>"COPY" { RTOKEN(COPY);} 307 <EXPRESSION,BOTH,SCRIPT>"INFO" { RTOKEN(INFO);} 308 <EXPRESSION,BOTH,SCRIPT>"OVERLAY" { RTOKEN(OVERLAY);} 309 <EXPRESSION,BOTH,SCRIPT>"ONLY_IF_RO" { RTOKEN(ONLY_IF_RO); } 310 <EXPRESSION,BOTH,SCRIPT>"ONLY_IF_RW" { RTOKEN(ONLY_IF_RW); } 311 <EXPRESSION,BOTH,SCRIPT>"SPECIAL" { RTOKEN(SPECIAL); } 312 <BOTH,SCRIPT>"o" { RTOKEN(ORIGIN);} 313 <BOTH,SCRIPT>"org" { RTOKEN(ORIGIN);} 314 <BOTH,SCRIPT>"l" { RTOKEN( LENGTH);} 315 <BOTH,SCRIPT>"len" { RTOKEN( LENGTH);} 316 <EXPRESSION,BOTH,SCRIPT>"INPUT_SECTION_FLAGS" { RTOKEN(INPUT_SECTION_FLAGS); } 317 <EXPRESSION,BOTH,SCRIPT>"INCLUDE" { RTOKEN(INCLUDE);} 318 <BOTH,SCRIPT>"PHDRS" { RTOKEN (PHDRS); } 319 <EXPRESSION,BOTH,SCRIPT>"AT" { RTOKEN(AT);} 320 <EXPRESSION,BOTH,SCRIPT>"SUBALIGN" { RTOKEN(SUBALIGN);} 321 <EXPRESSION,BOTH,SCRIPT>"HIDDEN" { RTOKEN(HIDDEN); } 322 <EXPRESSION,BOTH,SCRIPT>"PROVIDE" { RTOKEN(PROVIDE); } 323 <EXPRESSION,BOTH,SCRIPT>"PROVIDE_HIDDEN" { RTOKEN(PROVIDE_HIDDEN); } 324 <EXPRESSION,BOTH,SCRIPT>"KEEP" { RTOKEN(KEEP); } 325 <EXPRESSION,BOTH,SCRIPT>"EXCLUDE_FILE" { RTOKEN(EXCLUDE_FILE); } 326 <EXPRESSION,BOTH,SCRIPT>"CONSTANT" { RTOKEN(CONSTANT);} 327 <MRI>"#".*\n? { ++ lineno; } 328 <MRI>"\n" { ++ lineno; RTOKEN(NEWLINE); } 329 <MRI>"*".* { /* Mri comment line */ } 330 <MRI>";".* { /* Mri comment line */ } 331 <MRI>"END" { RTOKEN(ENDWORD); } 332 <MRI>"ALIGNMOD" { RTOKEN(ALIGNMOD);} 333 <MRI>"ALIGN" { RTOKEN(ALIGN_K);} 334 <MRI>"CHIP" { RTOKEN(CHIP); } 335 <MRI>"BASE" { RTOKEN(BASE); } 336 <MRI>"ALIAS" { RTOKEN(ALIAS); } 337 <MRI>"TRUNCATE" { RTOKEN(TRUNCATE); } 338 <MRI>"LOAD" { RTOKEN(LOAD); } 339 <MRI>"PUBLIC" { RTOKEN(PUBLIC); } 340 <MRI>"ORDER" { RTOKEN(ORDER); } 341 <MRI>"NAME" { RTOKEN(NAMEWORD); } 342 <MRI>"FORMAT" { RTOKEN(FORMAT); } 343 <MRI>"CASE" { RTOKEN(CASE); } 344 <MRI>"START" { RTOKEN(START); } 345 <MRI>"LIST".* { RTOKEN(LIST); /* LIST and ignore to end of line */ } 346 <MRI>"SECT" { RTOKEN(SECT); } 347 <EXPRESSION,BOTH,SCRIPT,MRI>"ABSOLUTE" { RTOKEN(ABSOLUTE); } 348 <MRI>"end" { RTOKEN(ENDWORD); } 349 <MRI>"alignmod" { RTOKEN(ALIGNMOD);} 350 <MRI>"align" { RTOKEN(ALIGN_K);} 351 <MRI>"chip" { RTOKEN(CHIP); } 352 <MRI>"base" { RTOKEN(BASE); } 353 <MRI>"alias" { RTOKEN(ALIAS); } 354 <MRI>"truncate" { RTOKEN(TRUNCATE); } 355 <MRI>"load" { RTOKEN(LOAD); } 356 <MRI>"public" { RTOKEN(PUBLIC); } 357 <MRI>"order" { RTOKEN(ORDER); } 358 <MRI>"name" { RTOKEN(NAMEWORD); } 359 <MRI>"format" { RTOKEN(FORMAT); } 360 <MRI>"case" { RTOKEN(CASE); } 361 <MRI>"extern" { RTOKEN(EXTERN); } 362 <MRI>"start" { RTOKEN(START); } 363 <MRI>"list".* { RTOKEN(LIST); /* LIST and ignore to end of line */ } 364 <MRI>"sect" { RTOKEN(SECT); } 365 <EXPRESSION,BOTH,SCRIPT,MRI>"absolute" { RTOKEN(ABSOLUTE); } 366 367 <MRI>{FILENAMECHAR1}{NOCFILENAMECHAR}* { 368 /* Filename without commas, needed to parse mri stuff */ 369 yylval.name = xstrdup (yytext); 370 return NAME; 371 } 372 373 374 <BOTH>{FILENAMECHAR1}{FILENAMECHAR}* { 375 yylval.name = xstrdup (yytext); 376 return NAME; 377 } 378 <BOTH>"-l"{FILENAMECHAR}+ { 379 yylval.name = xstrdup (yytext + 2); 380 return LNAME; 381 } 382 <EXPRESSION>{FILENAMECHAR1}{NOCFILENAMECHAR}* { 383 yylval.name = xstrdup (yytext); 384 return NAME; 385 } 386 <EXPRESSION>"-l"{NOCFILENAMECHAR}+ { 387 yylval.name = xstrdup (yytext + 2); 388 return LNAME; 389 } 390 <SCRIPT>{WILDCHAR}* { 391 /* Annoyingly, this pattern can match comments, and we have 392 longest match issues to consider. So if the first two 393 characters are a comment opening, put the input back and 394 try again. */ 395 if (yytext[0] == '/' && yytext[1] == '*') 396 { 397 yyless (2); 398 comment (); 399 } 400 else 401 { 402 yylval.name = xstrdup (yytext); 403 return NAME; 404 } 405 } 406 407 <EXPRESSION,BOTH,SCRIPT,VERS_NODE>"\""[^\"]*"\"" { 408 /* No matter the state, quotes 409 give what's inside */ 410 yylval.name = xstrdup (yytext + 1); 411 yylval.name[yyleng - 2] = 0; 412 return NAME; 413 } 414 <BOTH,SCRIPT,EXPRESSION>"\n" { lineno++;} 415 <MRI,BOTH,SCRIPT,EXPRESSION>[ \t\r]+ { } 416 417 <VERS_NODE,VERS_SCRIPT>[:,;] { return *yytext; } 418 419 <VERS_NODE>global { RTOKEN(GLOBAL); } 420 421 <VERS_NODE>local { RTOKEN(LOCAL); } 422 423 <VERS_NODE>extern { RTOKEN(EXTERN); } 424 425 <VERS_NODE>{V_IDENTIFIER} { yylval.name = xstrdup (yytext); 426 return VERS_IDENTIFIER; } 427 428 <VERS_SCRIPT>{V_TAG} { yylval.name = xstrdup (yytext); 429 return VERS_TAG; } 430 431 <VERS_START>"{" { BEGIN(VERS_SCRIPT); return *yytext; } 432 433 <VERS_SCRIPT>"{" { BEGIN(VERS_NODE); 434 vers_node_nesting = 0; 435 return *yytext; 436 } 437 <VERS_SCRIPT>"}" { return *yytext; } 438 <VERS_NODE>"{" { vers_node_nesting++; return *yytext; } 439 <VERS_NODE>"}" { if (--vers_node_nesting < 0) 440 BEGIN(VERS_SCRIPT); 441 return *yytext; 442 } 443 444 <VERS_START,VERS_NODE,VERS_SCRIPT>[\n] { lineno++; } 445 446 <VERS_START,VERS_NODE,VERS_SCRIPT>#.* { /* Eat up comments */ } 447 448 <VERS_START,VERS_NODE,VERS_SCRIPT>[ \t\r]+ { /* Eat up whitespace */ } 449 450 <<EOF>> { 451 include_stack_ptr--; 452 if (include_stack_ptr == 0) 453 yyterminate (); 454 else 455 yy_switch_to_buffer (include_stack[include_stack_ptr]); 456 457 lineno = lineno_stack[include_stack_ptr]; 458 input_flags.sysrooted = sysrooted_stack[include_stack_ptr]; 459 460 return END; 461 } 462 463 <SCRIPT,MRI,VERS_START,VERS_SCRIPT,VERS_NODE>. lex_warn_invalid (" in script", yytext); 464 <EXPRESSION,DEFSYMEXP,BOTH>. lex_warn_invalid (" in expression", yytext); 465 466 %% 467 468 469 /* Switch flex to reading script file NAME, open on FILE, 470 saving the current input info on the include stack. */ 471 472 void 473 lex_push_file (FILE *file, const char *name, unsigned int sysrooted) 474 { 475 if (include_stack_ptr >= MAX_INCLUDE_DEPTH) 476 { 477 einfo ("%F:includes nested too deeply\n"); 478 } 479 file_name_stack[include_stack_ptr] = name; 480 lineno_stack[include_stack_ptr] = lineno; 481 sysrooted_stack[include_stack_ptr] = input_flags.sysrooted; 482 include_stack[include_stack_ptr] = YY_CURRENT_BUFFER; 483 484 include_stack_ptr++; 485 lineno = 1; 486 input_flags.sysrooted = sysrooted; 487 yyin = file; 488 yy_switch_to_buffer (yy_create_buffer (yyin, YY_BUF_SIZE)); 489 } 490 491 /* Return a newly created flex input buffer containing STRING, 492 which is SIZE bytes long. */ 493 494 static YY_BUFFER_STATE 495 yy_create_string_buffer (const char *string, size_t size) 496 { 497 YY_BUFFER_STATE b; 498 499 /* Calls to m-alloc get turned by sed into xm-alloc. */ 500 b = malloc (sizeof (struct yy_buffer_state)); 501 b->yy_input_file = 0; 502 b->yy_buf_size = size; 503 504 /* yy_ch_buf has to be 2 characters longer than the size given because 505 we need to put in 2 end-of-buffer characters. */ 506 b->yy_ch_buf = malloc ((unsigned) (b->yy_buf_size + 3)); 507 508 b->yy_ch_buf[0] = '\n'; 509 strcpy (b->yy_ch_buf+1, string); 510 b->yy_ch_buf[size+1] = YY_END_OF_BUFFER_CHAR; 511 b->yy_ch_buf[size+2] = YY_END_OF_BUFFER_CHAR; 512 b->yy_n_chars = size+1; 513 b->yy_buf_pos = &b->yy_ch_buf[1]; 514 515 b->yy_is_our_buffer = 1; 516 b->yy_is_interactive = 0; 517 b->yy_at_bol = 1; 518 b->yy_fill_buffer = 0; 519 520 /* flex 2.4.7 changed the interface. FIXME: We should not be using 521 a flex internal interface in the first place! */ 522 #ifdef YY_BUFFER_NEW 523 b->yy_buffer_status = YY_BUFFER_NEW; 524 #else 525 b->yy_eof_status = EOF_NOT_SEEN; 526 #endif 527 528 return b; 529 } 530 531 /* Switch flex to reading from STRING, saving the current input info 532 on the include stack. */ 533 534 void 535 lex_redirect (const char *string, const char *fake_filename, unsigned int count) 536 { 537 YY_BUFFER_STATE tmp; 538 539 yy_init = 0; 540 if (include_stack_ptr >= MAX_INCLUDE_DEPTH) 541 { 542 einfo("%F: macros nested too deeply\n"); 543 } 544 file_name_stack[include_stack_ptr] = fake_filename; 545 lineno_stack[include_stack_ptr] = lineno; 546 include_stack[include_stack_ptr] = YY_CURRENT_BUFFER; 547 include_stack_ptr++; 548 lineno = count; 549 tmp = yy_create_string_buffer (string, strlen (string)); 550 yy_switch_to_buffer (tmp); 551 } 552 553 /* Functions to switch to a different flex start condition, 554 saving the current start condition on `state_stack'. */ 555 556 static int state_stack[MAX_INCLUDE_DEPTH * 2]; 557 static int *state_stack_p = state_stack; 558 559 void 560 ldlex_script (void) 561 { 562 *(state_stack_p)++ = yy_start; 563 BEGIN (SCRIPT); 564 } 565 566 void 567 ldlex_mri_script (void) 568 { 569 *(state_stack_p)++ = yy_start; 570 BEGIN (MRI); 571 } 572 573 void 574 ldlex_version_script (void) 575 { 576 *(state_stack_p)++ = yy_start; 577 BEGIN (VERS_START); 578 } 579 580 void 581 ldlex_version_file (void) 582 { 583 *(state_stack_p)++ = yy_start; 584 BEGIN (VERS_SCRIPT); 585 } 586 587 void 588 ldlex_defsym (void) 589 { 590 *(state_stack_p)++ = yy_start; 591 BEGIN (DEFSYMEXP); 592 } 593 594 void 595 ldlex_expression (void) 596 { 597 *(state_stack_p)++ = yy_start; 598 BEGIN (EXPRESSION); 599 } 600 601 void 602 ldlex_both (void) 603 { 604 *(state_stack_p)++ = yy_start; 605 BEGIN (BOTH); 606 } 607 608 void 609 ldlex_popstate (void) 610 { 611 yy_start = *(--state_stack_p); 612 } 613 614 /* Return the current file name, or the previous file if no file is 615 current. */ 616 617 const char* 618 ldlex_filename (void) 619 { 620 return file_name_stack[include_stack_ptr - (include_stack_ptr != 0)]; 621 } 622 623 624 /* Place up to MAX_SIZE characters in BUF and return 625 either the number of characters read, or 0 to indicate EOF. */ 626 627 static int 628 yy_input (char *buf, int max_size) 629 { 630 int result = 0; 631 if (YY_CURRENT_BUFFER->yy_input_file) 632 { 633 if (yyin) 634 { 635 result = fread (buf, 1, max_size, yyin); 636 if (result < max_size && ferror (yyin)) 637 einfo ("%F%P: read in flex scanner failed\n"); 638 } 639 } 640 return result; 641 } 642 643 /* Eat the rest of a C-style comment. */ 644 645 static void 646 comment (void) 647 { 648 int c; 649 650 while (1) 651 { 652 c = input(); 653 while (c != '*' && c != EOF) 654 { 655 if (c == '\n') 656 lineno++; 657 c = input(); 658 } 659 660 if (c == '*') 661 { 662 c = input(); 663 while (c == '*') 664 c = input(); 665 if (c == '/') 666 break; /* found the end */ 667 } 668 669 if (c == '\n') 670 lineno++; 671 672 if (c == EOF) 673 { 674 einfo( "%F%P: EOF in comment\n"); 675 break; 676 } 677 } 678 } 679 680 /* Warn the user about a garbage character WHAT in the input 681 in context WHERE. */ 682 683 static void 684 lex_warn_invalid (char *where, char *what) 685 { 686 char buf[5]; 687 688 /* If we have found an input file whose format we do not recognize, 689 and we are therefore treating it as a linker script, and we find 690 an invalid character, then most likely this is a real object file 691 of some different format. Treat it as such. */ 692 if (ldfile_assumed_script) 693 { 694 bfd_set_error (bfd_error_file_not_recognized); 695 einfo ("%F%s: file not recognized: %E\n", ldlex_filename ()); 696 } 697 698 if (! ISPRINT (*what)) 699 { 700 sprintf (buf, "\\%03o", *(unsigned char *) what); 701 what = buf; 702 } 703 704 einfo ("%P:%S: ignoring invalid character `%s'%s\n", NULL, what, where); 705 } 706