1 %option nounput noyywrap 2 3 %{ 4 5 /* Copyright (C) 1991-2020 Free Software Foundation, Inc. 6 Written by Steve Chamberlain of Cygnus Support. 7 8 This file is part of the GNU Binutils. 9 10 This program is free software; you can redistribute it and/or modify 11 it under the terms of the GNU General Public License as published by 12 the Free Software Foundation; either version 3 of the License, or 13 (at your option) any later version. 14 15 This program is distributed in the hope that it will be useful, 16 but WITHOUT ANY WARRANTY; without even the implied warranty of 17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 GNU General Public License for more details. 19 20 You should have received a copy of the GNU General Public License 21 along with this program; if not, write to the Free Software 22 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 23 MA 02110-1301, USA. */ 24 25 #include "bfd.h" 26 #include "safe-ctype.h" 27 #include "bfdlink.h" 28 #include "ctf-api.h" 29 #include "ld.h" 30 #include "ldmisc.h" 31 #include "ldexp.h" 32 #include "ldlang.h" 33 #include <ldgram.h> 34 #include "ldfile.h" 35 #include "ldlex.h" 36 #include "ldmain.h" 37 #include "libiberty.h" 38 39 /* The type of top-level parser input. 40 yylex and yyparse (indirectly) both check this. */ 41 input_type parser_input; 42 43 /* Line number in the current input file. */ 44 unsigned int lineno; 45 46 /* The string we are currently lexing, or NULL if we are reading a 47 file. */ 48 const char *lex_string = NULL; 49 50 /* Support for flex reading from more than one input file (stream). 51 `include_stack' is flex's input state for each open file; 52 `file_name_stack' is the file names. `lineno_stack' is the current 53 line numbers. 54 55 If `include_stack_ptr' is 0, we haven't started reading anything yet. 56 Otherwise, stack elements 0 through `include_stack_ptr - 1' are valid. */ 57 58 #undef YY_INPUT 59 #define YY_INPUT(buf,result,max_size) result = yy_input (buf, max_size) 60 61 #define MAX_INCLUDE_DEPTH 10 62 static YY_BUFFER_STATE include_stack[MAX_INCLUDE_DEPTH]; 63 static const char *file_name_stack[MAX_INCLUDE_DEPTH]; 64 static unsigned int lineno_stack[MAX_INCLUDE_DEPTH]; 65 static unsigned int sysrooted_stack[MAX_INCLUDE_DEPTH]; 66 static unsigned int include_stack_ptr = 0; 67 static int vers_node_nesting = 0; 68 69 static int yy_input (char *, int); 70 static void comment (void); 71 static void lex_warn_invalid (char *where, char *what); 72 73 /* STATES 74 EXPRESSION definitely in an expression 75 SCRIPT definitely in a script 76 INPUTLIST definitely in a script, a filename-list 77 BOTH either EXPRESSION or SCRIPT 78 DEFSYMEXP in an argument to -defsym 79 MRI in an MRI script 80 VERS_START starting a Sun style mapfile 81 VERS_SCRIPT a Sun style mapfile 82 VERS_NODE a node within a Sun style mapfile 83 */ 84 #define RTOKEN(x) { yylval.token = x; return x; } 85 86 %} 87 88 %option nounput 89 90 %a 4000 91 %o 5000 92 93 WILDCHAR [_a-zA-Z0-9\/\.\\\$\~\-\+\:\[\]\,\=\?\*\^\!] 94 FILENAMECHAR [_a-zA-Z0-9\/\.\\\$\~\-\+\:\[\]\,\=] 95 NOCFILENAMECHAR [_a-zA-Z0-9\/\.\\\$\~\-\+\:\[\]] 96 SYMBOLNAMECHAR [_a-zA-Z0-9\/\.\\\$\~] 97 FILENAMECHAR1 [_a-zA-Z\/\.\\\$\~] 98 SYMBOLNAMECHAR1 [_a-zA-Z\.\\\$] 99 WHITE [ \t\n\r]+ 100 101 V_TAG [.$_a-zA-Z][._a-zA-Z0-9]* 102 V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)* 103 104 %s SCRIPT 105 %s INPUTLIST 106 %s EXPRESSION 107 %s BOTH 108 %s DEFSYMEXP 109 %s MRI 110 %s VERS_START 111 %s VERS_SCRIPT 112 %s VERS_NODE 113 %% 114 115 if (parser_input != input_selected) 116 { 117 /* The first token of the input determines the initial parser state. */ 118 input_type t = parser_input; 119 parser_input = input_selected; 120 switch (t) 121 { 122 case input_script: return INPUT_SCRIPT; break; 123 case input_mri_script: return INPUT_MRI_SCRIPT; break; 124 case input_version_script: return INPUT_VERSION_SCRIPT; break; 125 case input_dynamic_list: return INPUT_DYNAMIC_LIST; break; 126 case input_defsym: return INPUT_DEFSYM; break; 127 default: abort (); 128 } 129 } 130 131 <BOTH,SCRIPT,EXPRESSION,VERS_START,VERS_NODE,VERS_SCRIPT,INPUTLIST>"/*" { comment (); } 132 133 134 <DEFSYMEXP>"-" { RTOKEN('-');} 135 <DEFSYMEXP>"+" { RTOKEN('+');} 136 <DEFSYMEXP>{SYMBOLNAMECHAR1}{SYMBOLNAMECHAR}* { yylval.name = xstrdup (yytext); 137 return NAME; } 138 <DEFSYMEXP>"=" { RTOKEN('='); } 139 140 <MRI,EXPRESSION>"$"([0-9A-Fa-f])+ { 141 yylval.integer = bfd_scan_vma (yytext + 1, 0, 16); 142 yylval.bigint.str = NULL; 143 return INT; 144 } 145 146 <MRI,EXPRESSION>([0-9A-Fa-f])+(H|h|X|x|B|b|O|o|D|d) { 147 int ibase ; 148 switch (yytext[yyleng - 1]) { 149 case 'X': 150 case 'x': 151 case 'H': 152 case 'h': 153 ibase = 16; 154 break; 155 case 'O': 156 case 'o': 157 ibase = 8; 158 break; 159 case 'B': 160 case 'b': 161 ibase = 2; 162 break; 163 default: 164 ibase = 10; 165 } 166 yylval.integer = bfd_scan_vma (yytext, 0, 167 ibase); 168 yylval.bigint.str = NULL; 169 return INT; 170 } 171 <SCRIPT,DEFSYMEXP,MRI,BOTH,EXPRESSION>((("$"|0[xX])([0-9A-Fa-f])+)|(([0-9])+))(M|K|m|k)? { 172 char *s = yytext; 173 int ibase = 0; 174 175 if (*s == '$') 176 { 177 ++s; 178 ibase = 16; 179 } 180 yylval.integer = bfd_scan_vma (s, 0, ibase); 181 yylval.bigint.str = NULL; 182 if (yytext[yyleng - 1] == 'M' 183 || yytext[yyleng - 1] == 'm') 184 { 185 yylval.integer *= 1024 * 1024; 186 } 187 else if (yytext[yyleng - 1] == 'K' 188 || yytext[yyleng - 1]=='k') 189 { 190 yylval.integer *= 1024; 191 } 192 else if (yytext[0] == '0' 193 && (yytext[1] == 'x' 194 || yytext[1] == 'X')) 195 { 196 yylval.bigint.str = xstrdup (yytext + 2); 197 } 198 return INT; 199 } 200 <BOTH,SCRIPT,EXPRESSION,MRI>"]" { RTOKEN(']');} 201 <BOTH,SCRIPT,EXPRESSION,MRI>"[" { RTOKEN('[');} 202 <BOTH,SCRIPT,EXPRESSION,MRI>"<<=" { RTOKEN(LSHIFTEQ);} 203 <BOTH,SCRIPT,EXPRESSION,MRI>">>=" { RTOKEN(RSHIFTEQ);} 204 <BOTH,SCRIPT,EXPRESSION,MRI>"||" { RTOKEN(OROR);} 205 <BOTH,SCRIPT,EXPRESSION,MRI>"==" { RTOKEN(EQ);} 206 <BOTH,SCRIPT,EXPRESSION,MRI>"!=" { RTOKEN(NE);} 207 <BOTH,SCRIPT,EXPRESSION,MRI>">=" { RTOKEN(GE);} 208 <BOTH,SCRIPT,EXPRESSION,MRI>"<=" { RTOKEN(LE);} 209 <BOTH,SCRIPT,EXPRESSION,MRI>"<<" { RTOKEN(LSHIFT);} 210 <BOTH,SCRIPT,EXPRESSION,MRI>">>" { RTOKEN(RSHIFT);} 211 <BOTH,SCRIPT,EXPRESSION,MRI>"+=" { RTOKEN(PLUSEQ);} 212 <BOTH,SCRIPT,EXPRESSION,MRI>"-=" { RTOKEN(MINUSEQ);} 213 <BOTH,SCRIPT,EXPRESSION,MRI>"*=" { RTOKEN(MULTEQ);} 214 <BOTH,SCRIPT,EXPRESSION,MRI>"/=" { RTOKEN(DIVEQ);} 215 <BOTH,SCRIPT,EXPRESSION,MRI>"&=" { RTOKEN(ANDEQ);} 216 <BOTH,SCRIPT,EXPRESSION,MRI>"|=" { RTOKEN(OREQ);} 217 <BOTH,SCRIPT,EXPRESSION,MRI>"&&" { RTOKEN(ANDAND);} 218 <BOTH,SCRIPT,EXPRESSION,MRI>">" { RTOKEN('>');} 219 <BOTH,SCRIPT,EXPRESSION,MRI,INPUTLIST>"," { RTOKEN(',');} 220 <BOTH,SCRIPT,EXPRESSION,MRI>"&" { RTOKEN('&');} 221 <BOTH,SCRIPT,EXPRESSION,MRI>"|" { RTOKEN('|');} 222 <BOTH,SCRIPT,EXPRESSION,MRI>"~" { RTOKEN('~');} 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,INPUTLIST>")" { RTOKEN(')');} 235 <BOTH,SCRIPT,EXPRESSION,MRI,INPUTLIST>"(" { RTOKEN('(');} 236 <BOTH,SCRIPT,EXPRESSION,MRI>":" { RTOKEN(':'); } 237 <BOTH,SCRIPT,EXPRESSION,MRI>";" { RTOKEN(';');} 238 <BOTH,SCRIPT>"MEMORY" { RTOKEN(MEMORY);} 239 <BOTH,SCRIPT>"REGION_ALIAS" { RTOKEN(REGION_ALIAS);} 240 <BOTH,SCRIPT>"LD_FEATURE" { RTOKEN(LD_FEATURE);} 241 <BOTH,SCRIPT,EXPRESSION>"ORIGIN" { RTOKEN(ORIGIN);} 242 <BOTH,SCRIPT>"VERSION" { RTOKEN(VERSIONK);} 243 <EXPRESSION,BOTH,SCRIPT>"BLOCK" { RTOKEN(BLOCK);} 244 <EXPRESSION,BOTH,SCRIPT>"BIND" { RTOKEN(BIND);} 245 <BOTH,SCRIPT,EXPRESSION>"LENGTH" { RTOKEN(LENGTH);} 246 <EXPRESSION,BOTH,SCRIPT>"ALIGN" { RTOKEN(ALIGN_K);} 247 <EXPRESSION,BOTH,SCRIPT>"DATA_SEGMENT_ALIGN" { RTOKEN(DATA_SEGMENT_ALIGN);} 248 <EXPRESSION,BOTH,SCRIPT>"DATA_SEGMENT_RELRO_END" { RTOKEN(DATA_SEGMENT_RELRO_END);} 249 <EXPRESSION,BOTH,SCRIPT>"DATA_SEGMENT_END" { RTOKEN(DATA_SEGMENT_END);} 250 <EXPRESSION,BOTH,SCRIPT>"ADDR" { RTOKEN(ADDR);} 251 <EXPRESSION,BOTH,SCRIPT>"LOADADDR" { RTOKEN(LOADADDR);} 252 <EXPRESSION,BOTH,SCRIPT>"ALIGNOF" { RTOKEN(ALIGNOF); } 253 <EXPRESSION,BOTH>"MAX" { RTOKEN(MAX_K); } 254 <EXPRESSION,BOTH>"MIN" { RTOKEN(MIN_K); } 255 <EXPRESSION,BOTH>"LOG2CEIL" { RTOKEN(LOG2CEIL); } 256 <EXPRESSION,BOTH,SCRIPT>"ASSERT" { RTOKEN(ASSERT_K); } 257 <BOTH,SCRIPT>"ENTRY" { RTOKEN(ENTRY);} 258 <BOTH,SCRIPT,MRI>"EXTERN" { RTOKEN(EXTERN);} 259 <EXPRESSION,BOTH,SCRIPT>"NEXT" { RTOKEN(NEXT);} 260 <EXPRESSION,BOTH,SCRIPT>"sizeof_headers" { RTOKEN(SIZEOF_HEADERS);} 261 <EXPRESSION,BOTH,SCRIPT>"SIZEOF_HEADERS" { RTOKEN(SIZEOF_HEADERS);} 262 <EXPRESSION,BOTH,SCRIPT>"SEGMENT_START" { RTOKEN(SEGMENT_START);} 263 <BOTH,SCRIPT>"MAP" { RTOKEN(MAP);} 264 <EXPRESSION,BOTH,SCRIPT>"SIZEOF" { RTOKEN(SIZEOF);} 265 <BOTH,SCRIPT>"TARGET" { RTOKEN(TARGET_K);} 266 <BOTH,SCRIPT>"SEARCH_DIR" { RTOKEN(SEARCH_DIR);} 267 <BOTH,SCRIPT>"OUTPUT" { RTOKEN(OUTPUT);} 268 <BOTH,SCRIPT>"INPUT" { RTOKEN(INPUT);} 269 <EXPRESSION,BOTH,SCRIPT>"GROUP" { RTOKEN(GROUP);} 270 <EXPRESSION,BOTH,SCRIPT,INPUTLIST>"AS_NEEDED" { RTOKEN(AS_NEEDED);} 271 <EXPRESSION,BOTH,SCRIPT>"DEFINED" { RTOKEN(DEFINED);} 272 <BOTH,SCRIPT>"CREATE_OBJECT_SYMBOLS" { RTOKEN(CREATE_OBJECT_SYMBOLS);} 273 <BOTH,SCRIPT>"CONSTRUCTORS" { RTOKEN( CONSTRUCTORS);} 274 <BOTH,SCRIPT>"FORCE_COMMON_ALLOCATION" { RTOKEN(FORCE_COMMON_ALLOCATION);} 275 <BOTH,SCRIPT>"FORCE_GROUP_ALLOCATION" { RTOKEN(FORCE_GROUP_ALLOCATION);} 276 <BOTH,SCRIPT>"INHIBIT_COMMON_ALLOCATION" { RTOKEN(INHIBIT_COMMON_ALLOCATION);} 277 <BOTH,SCRIPT>"SECTIONS" { RTOKEN(SECTIONS);} 278 <BOTH,SCRIPT>"INSERT" { RTOKEN(INSERT_K);} 279 <BOTH,SCRIPT>"AFTER" { RTOKEN(AFTER);} 280 <BOTH,SCRIPT>"BEFORE" { RTOKEN(BEFORE);} 281 <BOTH,SCRIPT>"FILL" { RTOKEN(FILL);} 282 <BOTH,SCRIPT>"STARTUP" { RTOKEN(STARTUP);} 283 <BOTH,SCRIPT>"OUTPUT_FORMAT" { RTOKEN(OUTPUT_FORMAT);} 284 <BOTH,SCRIPT>"OUTPUT_ARCH" { RTOKEN( OUTPUT_ARCH);} 285 <BOTH,SCRIPT>"HLL" { RTOKEN(HLL);} 286 <BOTH,SCRIPT>"SYSLIB" { RTOKEN(SYSLIB);} 287 <BOTH,SCRIPT>"FLOAT" { RTOKEN(FLOAT);} 288 <BOTH,SCRIPT>"QUAD" { RTOKEN( QUAD);} 289 <BOTH,SCRIPT>"SQUAD" { RTOKEN( SQUAD);} 290 <BOTH,SCRIPT>"LONG" { RTOKEN( LONG);} 291 <BOTH,SCRIPT>"SHORT" { RTOKEN( SHORT);} 292 <BOTH,SCRIPT>"BYTE" { RTOKEN( BYTE);} 293 <BOTH,SCRIPT>"NOFLOAT" { RTOKEN(NOFLOAT);} 294 <EXPRESSION,BOTH,SCRIPT>"NOCROSSREFS" { RTOKEN(NOCROSSREFS);} 295 <EXPRESSION,BOTH,SCRIPT>"NOCROSSREFS_TO" { RTOKEN(NOCROSSREFS_TO);} 296 <BOTH,SCRIPT>"OVERLAY" { RTOKEN(OVERLAY); } 297 <BOTH,SCRIPT>"SORT_BY_NAME" { RTOKEN(SORT_BY_NAME); } 298 <BOTH,SCRIPT>"SORT_BY_ALIGNMENT" { RTOKEN(SORT_BY_ALIGNMENT); } 299 <BOTH,SCRIPT>"SORT" { RTOKEN(SORT_BY_NAME); } 300 <BOTH,SCRIPT>"SORT_BY_INIT_PRIORITY" { RTOKEN(SORT_BY_INIT_PRIORITY); } 301 <BOTH,SCRIPT>"SORT_NONE" { RTOKEN(SORT_NONE); } 302 <EXPRESSION,BOTH,SCRIPT>"NOLOAD" { RTOKEN(NOLOAD);} 303 <EXPRESSION,BOTH,SCRIPT>"DSECT" { RTOKEN(DSECT);} 304 <EXPRESSION,BOTH,SCRIPT>"COPY" { RTOKEN(COPY);} 305 <EXPRESSION,BOTH,SCRIPT>"INFO" { RTOKEN(INFO);} 306 <EXPRESSION,BOTH,SCRIPT>"OVERLAY" { RTOKEN(OVERLAY);} 307 <EXPRESSION,BOTH,SCRIPT>"ONLY_IF_RO" { RTOKEN(ONLY_IF_RO); } 308 <EXPRESSION,BOTH,SCRIPT>"ONLY_IF_RW" { RTOKEN(ONLY_IF_RW); } 309 <EXPRESSION,BOTH,SCRIPT>"SPECIAL" { RTOKEN(SPECIAL); } 310 <BOTH,SCRIPT>"o" { RTOKEN(ORIGIN);} 311 <BOTH,SCRIPT>"org" { RTOKEN(ORIGIN);} 312 <BOTH,SCRIPT>"l" { RTOKEN( LENGTH);} 313 <BOTH,SCRIPT>"len" { RTOKEN( LENGTH);} 314 <EXPRESSION,BOTH,SCRIPT>"INPUT_SECTION_FLAGS" { RTOKEN(INPUT_SECTION_FLAGS); } 315 <EXPRESSION,BOTH,SCRIPT>"INCLUDE" { RTOKEN(INCLUDE);} 316 <BOTH,SCRIPT>"PHDRS" { RTOKEN (PHDRS); } 317 <EXPRESSION,BOTH,SCRIPT>"AT" { RTOKEN(AT);} 318 <EXPRESSION,BOTH,SCRIPT>"ALIGN_WITH_INPUT" { RTOKEN(ALIGN_WITH_INPUT);} 319 <EXPRESSION,BOTH,SCRIPT>"SUBALIGN" { RTOKEN(SUBALIGN);} 320 <EXPRESSION,BOTH,SCRIPT>"HIDDEN" { RTOKEN(HIDDEN); } 321 <EXPRESSION,BOTH,SCRIPT>"PROVIDE" { RTOKEN(PROVIDE); } 322 <EXPRESSION,BOTH,SCRIPT>"PROVIDE_HIDDEN" { RTOKEN(PROVIDE_HIDDEN); } 323 <EXPRESSION,BOTH,SCRIPT>"KEEP" { RTOKEN(KEEP); } 324 <EXPRESSION,BOTH,SCRIPT>"EXCLUDE_FILE" { RTOKEN(EXCLUDE_FILE); } 325 <EXPRESSION,BOTH,SCRIPT>"CONSTANT" { RTOKEN(CONSTANT);} 326 <MRI>"#".*\n? { ++ lineno; } 327 <MRI>"\n" { ++ lineno; RTOKEN(NEWLINE); } 328 <MRI>"*".* { /* Mri comment line */ } 329 <MRI>";".* { /* Mri comment line */ } 330 <MRI>"END" { RTOKEN(ENDWORD); } 331 <MRI>"ALIGNMOD" { RTOKEN(ALIGNMOD);} 332 <MRI>"ALIGN" { RTOKEN(ALIGN_K);} 333 <MRI>"CHIP" { RTOKEN(CHIP); } 334 <MRI>"BASE" { RTOKEN(BASE); } 335 <MRI>"ALIAS" { RTOKEN(ALIAS); } 336 <MRI>"TRUNCATE" { RTOKEN(TRUNCATE); } 337 <MRI>"LOAD" { RTOKEN(LOAD); } 338 <MRI>"PUBLIC" { RTOKEN(PUBLIC); } 339 <MRI>"ORDER" { RTOKEN(ORDER); } 340 <MRI>"NAME" { RTOKEN(NAMEWORD); } 341 <MRI>"FORMAT" { RTOKEN(FORMAT); } 342 <MRI>"CASE" { RTOKEN(CASE); } 343 <MRI>"START" { RTOKEN(START); } 344 <MRI>"LIST".* { RTOKEN(LIST); /* LIST and ignore to end of line */ } 345 <MRI>"SECT" { RTOKEN(SECT); } 346 <EXPRESSION,BOTH,SCRIPT,MRI>"ABSOLUTE" { RTOKEN(ABSOLUTE); } 347 <MRI>"end" { RTOKEN(ENDWORD); } 348 <MRI>"alignmod" { RTOKEN(ALIGNMOD);} 349 <MRI>"align" { RTOKEN(ALIGN_K);} 350 <MRI>"chip" { RTOKEN(CHIP); } 351 <MRI>"base" { RTOKEN(BASE); } 352 <MRI>"alias" { RTOKEN(ALIAS); } 353 <MRI>"truncate" { RTOKEN(TRUNCATE); } 354 <MRI>"load" { RTOKEN(LOAD); } 355 <MRI>"public" { RTOKEN(PUBLIC); } 356 <MRI>"order" { RTOKEN(ORDER); } 357 <MRI>"name" { RTOKEN(NAMEWORD); } 358 <MRI>"format" { RTOKEN(FORMAT); } 359 <MRI>"case" { RTOKEN(CASE); } 360 <MRI>"extern" { RTOKEN(EXTERN); } 361 <MRI>"start" { RTOKEN(START); } 362 <MRI>"list".* { RTOKEN(LIST); /* LIST and ignore to end of line */ } 363 <MRI>"sect" { RTOKEN(SECT); } 364 <EXPRESSION,BOTH,SCRIPT,MRI>"absolute" { RTOKEN(ABSOLUTE); } 365 366 <MRI>{FILENAMECHAR1}{NOCFILENAMECHAR}* { 367 /* Filename without commas, needed to parse mri stuff */ 368 yylval.name = xstrdup (yytext); 369 return NAME; 370 } 371 372 373 <BOTH,INPUTLIST>{FILENAMECHAR1}{FILENAMECHAR}* { 374 yylval.name = xstrdup (yytext); 375 return NAME; 376 } 377 <INPUTLIST>"="{FILENAMECHAR1}{FILENAMECHAR}* { 378 /* Filename to be prefixed by --sysroot or when non-sysrooted, nothing. */ 379 yylval.name = xstrdup (yytext); 380 return NAME; 381 } 382 <BOTH,INPUTLIST>"-l"{FILENAMECHAR}+ { 383 yylval.name = xstrdup (yytext + 2); 384 return LNAME; 385 } 386 <EXPRESSION>{SYMBOLNAMECHAR1}{NOCFILENAMECHAR}* { 387 yylval.name = xstrdup (yytext); 388 return NAME; 389 } 390 <EXPRESSION>"/DISCARD/" { 391 yylval.name = xstrdup (yytext); 392 return NAME; 393 } 394 <EXPRESSION>"-l"{NOCFILENAMECHAR}+ { 395 yylval.name = xstrdup (yytext + 2); 396 return LNAME; 397 } 398 <SCRIPT>{WILDCHAR}* { 399 /* Annoyingly, this pattern can match comments, and we have 400 longest match issues to consider. So if the first two 401 characters are a comment opening, put the input back and 402 try again. */ 403 if (yytext[0] == '/' && yytext[1] == '*') 404 { 405 yyless (2); 406 comment (); 407 } 408 else 409 { 410 yylval.name = xstrdup (yytext); 411 return NAME; 412 } 413 } 414 415 <EXPRESSION,BOTH,SCRIPT,VERS_NODE,INPUTLIST>"\""[^\"]*"\"" { 416 /* No matter the state, quotes 417 give what's inside. */ 418 bfd_size_type len; 419 yylval.name = xstrdup (yytext + 1); 420 /* PR ld/20906. A corrupt input file 421 can contain bogus strings. */ 422 len = strlen (yylval.name); 423 if (len > (bfd_size_type) yyleng - 2) 424 len = yyleng - 2; 425 yylval.name[len] = 0; 426 return NAME; 427 } 428 <BOTH,SCRIPT,EXPRESSION>"\n" { lineno++;} 429 <MRI,BOTH,SCRIPT,EXPRESSION>[ \t\r]+ { } 430 431 <VERS_NODE,VERS_SCRIPT>[:,;] { return *yytext; } 432 433 <VERS_NODE>global { RTOKEN(GLOBAL); } 434 435 <VERS_NODE>local { RTOKEN(LOCAL); } 436 437 <VERS_NODE>extern { RTOKEN(EXTERN); } 438 439 <VERS_NODE>{V_IDENTIFIER} { yylval.name = xstrdup (yytext); 440 return VERS_IDENTIFIER; } 441 442 <VERS_SCRIPT>{V_TAG} { yylval.name = xstrdup (yytext); 443 return VERS_TAG; } 444 445 <VERS_START>"{" { BEGIN(VERS_SCRIPT); return *yytext; } 446 447 <VERS_SCRIPT>"{" { BEGIN(VERS_NODE); 448 vers_node_nesting = 0; 449 return *yytext; 450 } 451 <VERS_SCRIPT>"}" { return *yytext; } 452 <VERS_NODE>"{" { vers_node_nesting++; return *yytext; } 453 <VERS_NODE>"}" { if (--vers_node_nesting < 0) 454 BEGIN(VERS_SCRIPT); 455 return *yytext; 456 } 457 458 <VERS_START,VERS_NODE,VERS_SCRIPT,INPUTLIST>[\n] { lineno++; } 459 460 <VERS_START,VERS_NODE,VERS_SCRIPT>#.* { /* Eat up comments */ } 461 462 <VERS_START,VERS_NODE,VERS_SCRIPT,INPUTLIST>[ \t\r]+ { /* Eat up whitespace */ } 463 464 <<EOF>> { 465 include_stack_ptr--; 466 if (include_stack_ptr == 0) 467 { 468 lineno = 0; 469 yyterminate (); 470 } 471 else 472 yy_switch_to_buffer (include_stack[include_stack_ptr]); 473 474 lineno = lineno_stack[include_stack_ptr]; 475 input_flags.sysrooted = sysrooted_stack[include_stack_ptr]; 476 477 return END; 478 } 479 480 <SCRIPT,MRI,VERS_START,VERS_SCRIPT,VERS_NODE>. lex_warn_invalid (" in script", yytext); 481 <EXPRESSION,DEFSYMEXP,BOTH>. lex_warn_invalid (" in expression", yytext); 482 483 %% 484 485 486 /* Switch flex to reading script file NAME, open on FILE, 487 saving the current input info on the include stack. */ 488 489 void 490 lex_push_file (FILE *file, const char *name, unsigned int sysrooted) 491 { 492 if (include_stack_ptr >= MAX_INCLUDE_DEPTH) 493 { 494 einfo (_("%F:includes nested too deeply\n")); 495 } 496 file_name_stack[include_stack_ptr] = name; 497 lineno_stack[include_stack_ptr] = lineno; 498 sysrooted_stack[include_stack_ptr] = input_flags.sysrooted; 499 include_stack[include_stack_ptr] = YY_CURRENT_BUFFER; 500 501 include_stack_ptr++; 502 lineno = 1; 503 input_flags.sysrooted = sysrooted; 504 yyin = file; 505 yy_switch_to_buffer (yy_create_buffer (yyin, YY_BUF_SIZE)); 506 } 507 508 /* Return a newly created flex input buffer containing STRING, 509 which is SIZE bytes long. */ 510 511 static YY_BUFFER_STATE 512 yy_create_string_buffer (const char *string, size_t size) 513 { 514 YY_BUFFER_STATE b; 515 516 /* Calls to m-alloc get turned by sed into xm-alloc. */ 517 b = malloc (sizeof (struct yy_buffer_state)); 518 b->yy_input_file = 0; 519 b->yy_buf_size = size; 520 521 /* yy_ch_buf has to be 2 characters longer than the size given because 522 we need to put in 2 end-of-buffer characters. */ 523 b->yy_ch_buf = malloc ((unsigned) (b->yy_buf_size + 3)); 524 525 b->yy_ch_buf[0] = '\n'; 526 strcpy (b->yy_ch_buf+1, string); 527 b->yy_ch_buf[size+1] = YY_END_OF_BUFFER_CHAR; 528 b->yy_ch_buf[size+2] = YY_END_OF_BUFFER_CHAR; 529 b->yy_n_chars = size+1; 530 b->yy_buf_pos = &b->yy_ch_buf[1]; 531 532 b->yy_is_our_buffer = 1; 533 b->yy_is_interactive = 0; 534 b->yy_at_bol = 1; 535 b->yy_fill_buffer = 0; 536 537 /* flex 2.4.7 changed the interface. FIXME: We should not be using 538 a flex internal interface in the first place! */ 539 #ifdef YY_BUFFER_NEW 540 b->yy_buffer_status = YY_BUFFER_NEW; 541 #else 542 b->yy_eof_status = EOF_NOT_SEEN; 543 #endif 544 545 return b; 546 } 547 548 /* Switch flex to reading from STRING, saving the current input info 549 on the include stack. */ 550 551 void 552 lex_redirect (const char *string, const char *fake_filename, unsigned int count) 553 { 554 YY_BUFFER_STATE tmp; 555 556 yy_init = 0; 557 if (include_stack_ptr >= MAX_INCLUDE_DEPTH) 558 { 559 einfo (_("%F: macros nested too deeply\n")); 560 } 561 file_name_stack[include_stack_ptr] = fake_filename; 562 lineno_stack[include_stack_ptr] = lineno; 563 include_stack[include_stack_ptr] = YY_CURRENT_BUFFER; 564 include_stack_ptr++; 565 lineno = count; 566 tmp = yy_create_string_buffer (string, strlen (string)); 567 yy_switch_to_buffer (tmp); 568 } 569 570 /* Functions to switch to a different flex start condition, 571 saving the current start condition on `state_stack'. */ 572 573 static int state_stack[MAX_INCLUDE_DEPTH * 2]; 574 static int *state_stack_p = state_stack; 575 576 void 577 ldlex_script (void) 578 { 579 *(state_stack_p)++ = yy_start; 580 BEGIN (SCRIPT); 581 } 582 583 void 584 ldlex_inputlist (void) 585 { 586 *(state_stack_p)++ = yy_start; 587 BEGIN (INPUTLIST); 588 } 589 590 void 591 ldlex_mri_script (void) 592 { 593 *(state_stack_p)++ = yy_start; 594 BEGIN (MRI); 595 } 596 597 void 598 ldlex_version_script (void) 599 { 600 *(state_stack_p)++ = yy_start; 601 BEGIN (VERS_START); 602 } 603 604 void 605 ldlex_version_file (void) 606 { 607 *(state_stack_p)++ = yy_start; 608 BEGIN (VERS_SCRIPT); 609 } 610 611 void 612 ldlex_defsym (void) 613 { 614 *(state_stack_p)++ = yy_start; 615 BEGIN (DEFSYMEXP); 616 } 617 618 void 619 ldlex_expression (void) 620 { 621 *(state_stack_p)++ = yy_start; 622 BEGIN (EXPRESSION); 623 } 624 625 void 626 ldlex_both (void) 627 { 628 *(state_stack_p)++ = yy_start; 629 BEGIN (BOTH); 630 } 631 632 void 633 ldlex_popstate (void) 634 { 635 yy_start = *(--state_stack_p); 636 } 637 638 /* Return the current file name, or the previous file if no file is 639 current. */ 640 641 const char* 642 ldlex_filename (void) 643 { 644 return file_name_stack[include_stack_ptr - (include_stack_ptr != 0)]; 645 } 646 647 648 /* Place up to MAX_SIZE characters in BUF and return 649 either the number of characters read, or 0 to indicate EOF. */ 650 651 static int 652 yy_input (char *buf, int max_size) 653 { 654 int result = 0; 655 if (YY_CURRENT_BUFFER->yy_input_file) 656 { 657 if (yyin) 658 { 659 result = fread (buf, 1, max_size, yyin); 660 if (result < max_size && ferror (yyin)) 661 einfo (_("%F%P: read in flex scanner failed\n")); 662 } 663 } 664 return result; 665 } 666 667 /* Eat the rest of a C-style comment. */ 668 669 static void 670 comment (void) 671 { 672 int c; 673 674 while (1) 675 { 676 c = input(); 677 while (c != '*' && c != 0) 678 { 679 if (c == '\n') 680 lineno++; 681 c = input(); 682 } 683 684 if (c == '*') 685 { 686 c = input(); 687 while (c == '*') 688 c = input(); 689 if (c == '/') 690 break; /* found the end */ 691 } 692 693 if (c == '\n') 694 lineno++; 695 696 if (c == 0) 697 { 698 einfo (_("%F%P: EOF in comment\n")); 699 break; 700 } 701 } 702 } 703 704 /* Warn the user about a garbage character WHAT in the input 705 in context WHERE. */ 706 707 static void 708 lex_warn_invalid (char *where, char *what) 709 { 710 char buf[5]; 711 712 /* If we have found an input file whose format we do not recognize, 713 and we are therefore treating it as a linker script, and we find 714 an invalid character, then most likely this is a real object file 715 of some different format. Treat it as such. */ 716 if (ldfile_assumed_script) 717 { 718 bfd_set_error (bfd_error_file_not_recognized); 719 einfo (_("%F%s: file not recognized: %E\n"), ldlex_filename ()); 720 } 721 722 if (! ISPRINT (*what)) 723 { 724 sprintf (buf, "\\%03o", *(unsigned char *) what); 725 what = buf; 726 } 727 728 einfo (_("%P:%pS: ignoring invalid character `%s'%s\n"), NULL, what, where); 729 } 730