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 "sysdep.h" 26 #include "bfd.h" 27 #include "safe-ctype.h" 28 #include "bfdlink.h" 29 #include "ctf-api.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 unsigned int lineno; 46 47 /* The string we are currently lexing, or NULL if we are reading a 48 file. */ 49 const char *lex_string = NULL; 50 51 /* Support for flex reading from more than one input file (stream). 52 `include_stack' is flex's input state for each open file; 53 `file_name_stack' is the file names. `lineno_stack' is the current 54 line numbers. 55 56 If `include_stack_ptr' is 0, we haven't started reading anything yet. 57 Otherwise, stack elements 0 through `include_stack_ptr - 1' are valid. */ 58 59 #undef YY_INPUT 60 #define YY_INPUT(buf,result,max_size) result = yy_input (buf, max_size) 61 62 #ifndef YY_NO_UNPUT 63 #define YY_NO_UNPUT 64 #endif 65 66 #define MAX_INCLUDE_DEPTH 10 67 static YY_BUFFER_STATE include_stack[MAX_INCLUDE_DEPTH]; 68 static const char *file_name_stack[MAX_INCLUDE_DEPTH]; 69 static unsigned int lineno_stack[MAX_INCLUDE_DEPTH]; 70 static unsigned int sysrooted_stack[MAX_INCLUDE_DEPTH]; 71 static unsigned int include_stack_ptr = 0; 72 static int vers_node_nesting = 0; 73 74 static int yy_input (char *, int); 75 static void comment (void); 76 static void lex_warn_invalid (char *where, char *what); 77 78 /* STATES 79 EXPRESSION definitely in an expression 80 SCRIPT definitely in a script 81 INPUTLIST definitely in a script, a filename-list 82 BOTH either EXPRESSION or SCRIPT 83 DEFSYMEXP in an argument to -defsym 84 MRI in an MRI script 85 VERS_START starting a Sun style mapfile 86 VERS_SCRIPT a Sun style mapfile 87 VERS_NODE a node within a Sun style mapfile 88 */ 89 #define RTOKEN(x) { yylval.token = x; return x; } 90 91 %} 92 93 %a 4000 94 %o 5000 95 96 WILDCHAR [_a-zA-Z0-9\/\.\\\$\~\-\+\:\[\]\,\=\?\*\^\!] 97 FILENAMECHAR [_a-zA-Z0-9\/\.\\\$\~\-\+\:\[\]\,\=] 98 NOCFILENAMECHAR [_a-zA-Z0-9\/\.\\\$\~\-\+\:\[\]] 99 SYMBOLNAMECHAR [_a-zA-Z0-9\/\.\\\$\~] 100 FILENAMECHAR1 [_a-zA-Z\/\.\\\$\~] 101 SYMBOLNAMECHAR1 [_a-zA-Z\.\\\$] 102 WHITE [ \t\n\r]+ 103 104 V_TAG [.$_a-zA-Z][._a-zA-Z0-9]* 105 V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)* 106 107 %s SCRIPT 108 %s INPUTLIST 109 %s EXPRESSION 110 %s BOTH 111 %s DEFSYMEXP 112 %s MRI 113 %s VERS_START 114 %s VERS_SCRIPT 115 %s VERS_NODE 116 %% 117 118 if (parser_input != input_selected) 119 { 120 /* The first token of the input determines the initial parser state. */ 121 input_type t = parser_input; 122 parser_input = input_selected; 123 switch (t) 124 { 125 case input_script: return INPUT_SCRIPT; break; 126 case input_mri_script: return INPUT_MRI_SCRIPT; break; 127 case input_version_script: return INPUT_VERSION_SCRIPT; break; 128 case input_dynamic_list: return INPUT_DYNAMIC_LIST; break; 129 case input_defsym: return INPUT_DEFSYM; break; 130 default: abort (); 131 } 132 } 133 134 <BOTH,SCRIPT,EXPRESSION,VERS_START,VERS_NODE,VERS_SCRIPT,INPUTLIST>"/*" { comment (); } 135 136 137 <DEFSYMEXP>"-" { RTOKEN('-');} 138 <DEFSYMEXP>"+" { RTOKEN('+');} 139 <DEFSYMEXP>{SYMBOLNAMECHAR1}{SYMBOLNAMECHAR}* { yylval.name = xstrdup (yytext); 140 return NAME; } 141 <DEFSYMEXP>"=" { RTOKEN('='); } 142 143 <MRI,EXPRESSION>"$"([0-9A-Fa-f])+ { 144 yylval.integer = bfd_scan_vma (yytext + 1, 0, 16); 145 yylval.bigint.str = NULL; 146 return INT; 147 } 148 149 <MRI,EXPRESSION>([0-9A-Fa-f])+(H|h|X|x|B|b|O|o|D|d) { 150 int ibase ; 151 switch (yytext[yyleng - 1]) { 152 case 'X': 153 case 'x': 154 case 'H': 155 case 'h': 156 ibase = 16; 157 break; 158 case 'O': 159 case 'o': 160 ibase = 8; 161 break; 162 case 'B': 163 case 'b': 164 ibase = 2; 165 break; 166 default: 167 ibase = 10; 168 } 169 yylval.integer = bfd_scan_vma (yytext, 0, 170 ibase); 171 yylval.bigint.str = NULL; 172 return INT; 173 } 174 <SCRIPT,DEFSYMEXP,MRI,BOTH,EXPRESSION>((("$"|0[xX])([0-9A-Fa-f])+)|(([0-9])+))(M|K|m|k)? { 175 char *s = yytext; 176 int ibase = 0; 177 178 if (*s == '$') 179 { 180 ++s; 181 ibase = 16; 182 } 183 yylval.integer = bfd_scan_vma (s, 0, ibase); 184 yylval.bigint.str = NULL; 185 if (yytext[yyleng - 1] == 'M' 186 || yytext[yyleng - 1] == 'm') 187 { 188 yylval.integer *= 1024 * 1024; 189 } 190 else if (yytext[yyleng - 1] == 'K' 191 || yytext[yyleng - 1]=='k') 192 { 193 yylval.integer *= 1024; 194 } 195 else if (yytext[0] == '0' 196 && (yytext[1] == 'x' 197 || yytext[1] == 'X')) 198 { 199 yylval.bigint.str = xstrdup (yytext + 2); 200 } 201 return INT; 202 } 203 <BOTH,SCRIPT,EXPRESSION,MRI>"]" { RTOKEN(']');} 204 <BOTH,SCRIPT,EXPRESSION,MRI>"[" { RTOKEN('[');} 205 <BOTH,SCRIPT,EXPRESSION,MRI>"<<=" { RTOKEN(LSHIFTEQ);} 206 <BOTH,SCRIPT,EXPRESSION,MRI>">>=" { RTOKEN(RSHIFTEQ);} 207 <BOTH,SCRIPT,EXPRESSION,MRI>"||" { RTOKEN(OROR);} 208 <BOTH,SCRIPT,EXPRESSION,MRI>"==" { RTOKEN(EQ);} 209 <BOTH,SCRIPT,EXPRESSION,MRI>"!=" { RTOKEN(NE);} 210 <BOTH,SCRIPT,EXPRESSION,MRI>">=" { RTOKEN(GE);} 211 <BOTH,SCRIPT,EXPRESSION,MRI>"<=" { RTOKEN(LE);} 212 <BOTH,SCRIPT,EXPRESSION,MRI>"<<" { RTOKEN(LSHIFT);} 213 <BOTH,SCRIPT,EXPRESSION,MRI>">>" { RTOKEN(RSHIFT);} 214 <BOTH,SCRIPT,EXPRESSION,MRI>"+=" { RTOKEN(PLUSEQ);} 215 <BOTH,SCRIPT,EXPRESSION,MRI>"-=" { RTOKEN(MINUSEQ);} 216 <BOTH,SCRIPT,EXPRESSION,MRI>"*=" { RTOKEN(MULTEQ);} 217 <BOTH,SCRIPT,EXPRESSION,MRI>"/=" { RTOKEN(DIVEQ);} 218 <BOTH,SCRIPT,EXPRESSION,MRI>"&=" { RTOKEN(ANDEQ);} 219 <BOTH,SCRIPT,EXPRESSION,MRI>"|=" { RTOKEN(OREQ);} 220 <BOTH,SCRIPT,EXPRESSION,MRI>"&&" { RTOKEN(ANDAND);} 221 <BOTH,SCRIPT,EXPRESSION,MRI>">" { RTOKEN('>');} 222 <BOTH,SCRIPT,EXPRESSION,MRI,INPUTLIST>"," { 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>"=" { RTOKEN('=');} 235 <BOTH,SCRIPT,EXPRESSION,MRI>"}" { RTOKEN('}') ; } 236 <BOTH,SCRIPT,EXPRESSION,MRI>"{" { RTOKEN('{'); } 237 <BOTH,SCRIPT,EXPRESSION,MRI,INPUTLIST>")" { RTOKEN(')');} 238 <BOTH,SCRIPT,EXPRESSION,MRI,INPUTLIST>"(" { RTOKEN('(');} 239 <BOTH,SCRIPT,EXPRESSION,MRI>":" { RTOKEN(':'); } 240 <BOTH,SCRIPT,EXPRESSION,MRI>";" { RTOKEN(';');} 241 <BOTH,SCRIPT>"MEMORY" { RTOKEN(MEMORY);} 242 <BOTH,SCRIPT>"REGION_ALIAS" { RTOKEN(REGION_ALIAS);} 243 <BOTH,SCRIPT>"LD_FEATURE" { RTOKEN(LD_FEATURE);} 244 <BOTH,SCRIPT,EXPRESSION>"ORIGIN" { RTOKEN(ORIGIN);} 245 <BOTH,SCRIPT>"VERSION" { RTOKEN(VERSIONK);} 246 <EXPRESSION,BOTH,SCRIPT>"BLOCK" { RTOKEN(BLOCK);} 247 <EXPRESSION,BOTH,SCRIPT>"BIND" { RTOKEN(BIND);} 248 <BOTH,SCRIPT,EXPRESSION>"LENGTH" { RTOKEN(LENGTH);} 249 <EXPRESSION,BOTH,SCRIPT>"ALIGN" { RTOKEN(ALIGN_K);} 250 <EXPRESSION,BOTH,SCRIPT>"DATA_SEGMENT_ALIGN" { RTOKEN(DATA_SEGMENT_ALIGN);} 251 <EXPRESSION,BOTH,SCRIPT>"DATA_SEGMENT_RELRO_END" { RTOKEN(DATA_SEGMENT_RELRO_END);} 252 <EXPRESSION,BOTH,SCRIPT>"DATA_SEGMENT_END" { RTOKEN(DATA_SEGMENT_END);} 253 <EXPRESSION,BOTH,SCRIPT>"ADDR" { RTOKEN(ADDR);} 254 <EXPRESSION,BOTH,SCRIPT>"LOADADDR" { RTOKEN(LOADADDR);} 255 <EXPRESSION,BOTH,SCRIPT>"ALIGNOF" { RTOKEN(ALIGNOF); } 256 <EXPRESSION,BOTH>"MAX" { RTOKEN(MAX_K); } 257 <EXPRESSION,BOTH>"MIN" { RTOKEN(MIN_K); } 258 <EXPRESSION,BOTH>"LOG2CEIL" { RTOKEN(LOG2CEIL); } 259 <EXPRESSION,BOTH,SCRIPT>"ASSERT" { RTOKEN(ASSERT_K); } 260 <BOTH,SCRIPT>"ENTRY" { RTOKEN(ENTRY);} 261 <BOTH,SCRIPT,MRI>"EXTERN" { RTOKEN(EXTERN);} 262 <EXPRESSION,BOTH,SCRIPT>"NEXT" { RTOKEN(NEXT);} 263 <EXPRESSION,BOTH,SCRIPT>"sizeof_headers" { RTOKEN(SIZEOF_HEADERS);} 264 <EXPRESSION,BOTH,SCRIPT>"SIZEOF_HEADERS" { RTOKEN(SIZEOF_HEADERS);} 265 <EXPRESSION,BOTH,SCRIPT>"SEGMENT_START" { RTOKEN(SEGMENT_START);} 266 <BOTH,SCRIPT>"MAP" { RTOKEN(MAP);} 267 <EXPRESSION,BOTH,SCRIPT>"SIZEOF" { RTOKEN(SIZEOF);} 268 <BOTH,SCRIPT>"TARGET" { RTOKEN(TARGET_K);} 269 <BOTH,SCRIPT>"SEARCH_DIR" { RTOKEN(SEARCH_DIR);} 270 <BOTH,SCRIPT>"OUTPUT" { RTOKEN(OUTPUT);} 271 <BOTH,SCRIPT>"INPUT" { RTOKEN(INPUT);} 272 <EXPRESSION,BOTH,SCRIPT>"GROUP" { RTOKEN(GROUP);} 273 <EXPRESSION,BOTH,SCRIPT,INPUTLIST>"AS_NEEDED" { RTOKEN(AS_NEEDED);} 274 <EXPRESSION,BOTH,SCRIPT>"DEFINED" { RTOKEN(DEFINED);} 275 <BOTH,SCRIPT>"CREATE_OBJECT_SYMBOLS" { RTOKEN(CREATE_OBJECT_SYMBOLS);} 276 <BOTH,SCRIPT>"CONSTRUCTORS" { RTOKEN( CONSTRUCTORS);} 277 <BOTH,SCRIPT>"FORCE_COMMON_ALLOCATION" { RTOKEN(FORCE_COMMON_ALLOCATION);} 278 <BOTH,SCRIPT>"FORCE_GROUP_ALLOCATION" { RTOKEN(FORCE_GROUP_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 <EXPRESSION,BOTH,SCRIPT>"NOCROSSREFS_TO" { RTOKEN(NOCROSSREFS_TO);} 299 <BOTH,SCRIPT>"OVERLAY" { RTOKEN(OVERLAY); } 300 <BOTH,SCRIPT>"SORT_BY_NAME" { RTOKEN(SORT_BY_NAME); } 301 <BOTH,SCRIPT>"SORT_BY_ALIGNMENT" { RTOKEN(SORT_BY_ALIGNMENT); } 302 <BOTH,SCRIPT>"SORT" { RTOKEN(SORT_BY_NAME); } 303 <BOTH,SCRIPT>"SORT_BY_INIT_PRIORITY" { RTOKEN(SORT_BY_INIT_PRIORITY); } 304 <BOTH,SCRIPT>"SORT_NONE" { RTOKEN(SORT_NONE); } 305 <EXPRESSION,BOTH,SCRIPT>"NOLOAD" { RTOKEN(NOLOAD);} 306 <EXPRESSION,BOTH,SCRIPT>"DSECT" { RTOKEN(DSECT);} 307 <EXPRESSION,BOTH,SCRIPT>"COPY" { RTOKEN(COPY);} 308 <EXPRESSION,BOTH,SCRIPT>"INFO" { RTOKEN(INFO);} 309 <EXPRESSION,BOTH,SCRIPT>"OVERLAY" { RTOKEN(OVERLAY);} 310 <EXPRESSION,BOTH,SCRIPT>"ONLY_IF_RO" { RTOKEN(ONLY_IF_RO); } 311 <EXPRESSION,BOTH,SCRIPT>"ONLY_IF_RW" { RTOKEN(ONLY_IF_RW); } 312 <EXPRESSION,BOTH,SCRIPT>"SPECIAL" { RTOKEN(SPECIAL); } 313 <BOTH,SCRIPT>"o" { RTOKEN(ORIGIN);} 314 <BOTH,SCRIPT>"org" { RTOKEN(ORIGIN);} 315 <BOTH,SCRIPT>"l" { RTOKEN( LENGTH);} 316 <BOTH,SCRIPT>"len" { RTOKEN( LENGTH);} 317 <EXPRESSION,BOTH,SCRIPT>"INPUT_SECTION_FLAGS" { RTOKEN(INPUT_SECTION_FLAGS); } 318 <EXPRESSION,BOTH,SCRIPT>"INCLUDE" { RTOKEN(INCLUDE);} 319 <BOTH,SCRIPT>"PHDRS" { RTOKEN (PHDRS); } 320 <EXPRESSION,BOTH,SCRIPT>"AT" { RTOKEN(AT);} 321 <EXPRESSION,BOTH,SCRIPT>"ALIGN_WITH_INPUT" { RTOKEN(ALIGN_WITH_INPUT);} 322 <EXPRESSION,BOTH,SCRIPT>"SUBALIGN" { RTOKEN(SUBALIGN);} 323 <EXPRESSION,BOTH,SCRIPT>"HIDDEN" { RTOKEN(HIDDEN); } 324 <EXPRESSION,BOTH,SCRIPT>"PROVIDE" { RTOKEN(PROVIDE); } 325 <EXPRESSION,BOTH,SCRIPT>"PROVIDE_HIDDEN" { RTOKEN(PROVIDE_HIDDEN); } 326 <EXPRESSION,BOTH,SCRIPT>"KEEP" { RTOKEN(KEEP); } 327 <EXPRESSION,BOTH,SCRIPT>"EXCLUDE_FILE" { RTOKEN(EXCLUDE_FILE); } 328 <EXPRESSION,BOTH,SCRIPT>"CONSTANT" { RTOKEN(CONSTANT);} 329 <MRI>"#".*\n? { ++ lineno; } 330 <MRI>"\n" { ++ lineno; RTOKEN(NEWLINE); } 331 <MRI>"*".* { /* Mri comment line */ } 332 <MRI>";".* { /* Mri comment line */ } 333 <MRI>"END" { RTOKEN(ENDWORD); } 334 <MRI>"ALIGNMOD" { RTOKEN(ALIGNMOD);} 335 <MRI>"ALIGN" { RTOKEN(ALIGN_K);} 336 <MRI>"CHIP" { RTOKEN(CHIP); } 337 <MRI>"BASE" { RTOKEN(BASE); } 338 <MRI>"ALIAS" { RTOKEN(ALIAS); } 339 <MRI>"TRUNCATE" { RTOKEN(TRUNCATE); } 340 <MRI>"LOAD" { RTOKEN(LOAD); } 341 <MRI>"PUBLIC" { RTOKEN(PUBLIC); } 342 <MRI>"ORDER" { RTOKEN(ORDER); } 343 <MRI>"NAME" { RTOKEN(NAMEWORD); } 344 <MRI>"FORMAT" { RTOKEN(FORMAT); } 345 <MRI>"CASE" { RTOKEN(CASE); } 346 <MRI>"START" { RTOKEN(START); } 347 <MRI>"LIST".* { RTOKEN(LIST); /* LIST and ignore to end of line */ } 348 <MRI>"SECT" { RTOKEN(SECT); } 349 <EXPRESSION,BOTH,SCRIPT,MRI>"ABSOLUTE" { RTOKEN(ABSOLUTE); } 350 <MRI>"end" { RTOKEN(ENDWORD); } 351 <MRI>"alignmod" { RTOKEN(ALIGNMOD);} 352 <MRI>"align" { RTOKEN(ALIGN_K);} 353 <MRI>"chip" { RTOKEN(CHIP); } 354 <MRI>"base" { RTOKEN(BASE); } 355 <MRI>"alias" { RTOKEN(ALIAS); } 356 <MRI>"truncate" { RTOKEN(TRUNCATE); } 357 <MRI>"load" { RTOKEN(LOAD); } 358 <MRI>"public" { RTOKEN(PUBLIC); } 359 <MRI>"order" { RTOKEN(ORDER); } 360 <MRI>"name" { RTOKEN(NAMEWORD); } 361 <MRI>"format" { RTOKEN(FORMAT); } 362 <MRI>"case" { RTOKEN(CASE); } 363 <MRI>"extern" { RTOKEN(EXTERN); } 364 <MRI>"start" { RTOKEN(START); } 365 <MRI>"list".* { RTOKEN(LIST); /* LIST and ignore to end of line */ } 366 <MRI>"sect" { RTOKEN(SECT); } 367 <EXPRESSION,BOTH,SCRIPT,MRI>"absolute" { RTOKEN(ABSOLUTE); } 368 369 <MRI>{FILENAMECHAR1}{NOCFILENAMECHAR}* { 370 /* Filename without commas, needed to parse mri stuff */ 371 yylval.name = xstrdup (yytext); 372 return NAME; 373 } 374 375 376 <BOTH,INPUTLIST>{FILENAMECHAR1}{FILENAMECHAR}* { 377 yylval.name = xstrdup (yytext); 378 return NAME; 379 } 380 <INPUTLIST>"="{FILENAMECHAR1}{FILENAMECHAR}* { 381 /* Filename to be prefixed by --sysroot or when non-sysrooted, nothing. */ 382 yylval.name = xstrdup (yytext); 383 return NAME; 384 } 385 <BOTH,INPUTLIST>"-l"{FILENAMECHAR}+ { 386 yylval.name = xstrdup (yytext + 2); 387 return LNAME; 388 } 389 <EXPRESSION>{SYMBOLNAMECHAR1}{NOCFILENAMECHAR}* { 390 yylval.name = xstrdup (yytext); 391 return NAME; 392 } 393 <EXPRESSION>"/DISCARD/" { 394 yylval.name = xstrdup (yytext); 395 return NAME; 396 } 397 <EXPRESSION>"-l"{NOCFILENAMECHAR}+ { 398 yylval.name = xstrdup (yytext + 2); 399 return LNAME; 400 } 401 <SCRIPT>{WILDCHAR}* { 402 /* Annoyingly, this pattern can match comments, and we have 403 longest match issues to consider. So if the first two 404 characters are a comment opening, put the input back and 405 try again. */ 406 if (yytext[0] == '/' && yytext[1] == '*') 407 { 408 yyless (2); 409 comment (); 410 } 411 else 412 { 413 yylval.name = xstrdup (yytext); 414 return NAME; 415 } 416 } 417 418 <EXPRESSION,BOTH,SCRIPT,VERS_NODE,INPUTLIST>"\""[^\"]*"\"" { 419 /* No matter the state, quotes 420 give what's inside. */ 421 bfd_size_type len; 422 yylval.name = xstrdup (yytext + 1); 423 /* PR ld/20906. A corrupt input file 424 can contain bogus strings. */ 425 len = strlen (yylval.name); 426 if (len > (bfd_size_type) yyleng - 2) 427 len = yyleng - 2; 428 yylval.name[len] = 0; 429 return NAME; 430 } 431 <BOTH,SCRIPT,EXPRESSION>"\n" { lineno++;} 432 <MRI,BOTH,SCRIPT,EXPRESSION>[ \t\r]+ { } 433 434 <VERS_NODE,VERS_SCRIPT>[:,;] { return *yytext; } 435 436 <VERS_NODE>global { RTOKEN(GLOBAL); } 437 438 <VERS_NODE>local { RTOKEN(LOCAL); } 439 440 <VERS_NODE>extern { RTOKEN(EXTERN); } 441 442 <VERS_NODE>{V_IDENTIFIER} { yylval.name = xstrdup (yytext); 443 return VERS_IDENTIFIER; } 444 445 <VERS_SCRIPT>{V_TAG} { yylval.name = xstrdup (yytext); 446 return VERS_TAG; } 447 448 <VERS_START>"{" { BEGIN(VERS_SCRIPT); return *yytext; } 449 450 <VERS_SCRIPT>"{" { BEGIN(VERS_NODE); 451 vers_node_nesting = 0; 452 return *yytext; 453 } 454 <VERS_SCRIPT>"}" { return *yytext; } 455 <VERS_NODE>"{" { vers_node_nesting++; return *yytext; } 456 <VERS_NODE>"}" { if (--vers_node_nesting < 0) 457 BEGIN(VERS_SCRIPT); 458 return *yytext; 459 } 460 461 <VERS_START,VERS_NODE,VERS_SCRIPT,INPUTLIST>[\n] { lineno++; } 462 463 <VERS_START,VERS_NODE,VERS_SCRIPT>#.* { /* Eat up comments */ } 464 465 <VERS_START,VERS_NODE,VERS_SCRIPT,INPUTLIST>[ \t\r]+ { /* Eat up whitespace */ } 466 467 <<EOF>> { 468 include_stack_ptr--; 469 if (include_stack_ptr == 0) 470 { 471 lineno = 0; 472 yyterminate (); 473 } 474 else 475 yy_switch_to_buffer (include_stack[include_stack_ptr]); 476 477 lineno = lineno_stack[include_stack_ptr]; 478 input_flags.sysrooted = sysrooted_stack[include_stack_ptr]; 479 480 return END; 481 } 482 483 <SCRIPT,MRI,VERS_START,VERS_SCRIPT,VERS_NODE>. lex_warn_invalid (" in script", yytext); 484 <EXPRESSION,DEFSYMEXP,BOTH>. lex_warn_invalid (" in expression", yytext); 485 486 %% 487 488 489 /* Switch flex to reading script file NAME, open on FILE, 490 saving the current input info on the include stack. */ 491 492 void 493 lex_push_file (FILE *file, const char *name, unsigned int sysrooted) 494 { 495 if (include_stack_ptr >= MAX_INCLUDE_DEPTH) 496 { 497 einfo (_("%F:includes nested too deeply\n")); 498 } 499 file_name_stack[include_stack_ptr] = name; 500 lineno_stack[include_stack_ptr] = lineno; 501 sysrooted_stack[include_stack_ptr] = input_flags.sysrooted; 502 include_stack[include_stack_ptr] = YY_CURRENT_BUFFER; 503 504 include_stack_ptr++; 505 lineno = 1; 506 input_flags.sysrooted = sysrooted; 507 yyin = file; 508 yy_switch_to_buffer (yy_create_buffer (yyin, YY_BUF_SIZE)); 509 } 510 511 /* Return a newly created flex input buffer containing STRING, 512 which is SIZE bytes long. */ 513 514 static YY_BUFFER_STATE 515 yy_create_string_buffer (const char *string, size_t size) 516 { 517 YY_BUFFER_STATE b; 518 519 /* Calls to m-alloc get turned by sed into xm-alloc. */ 520 b = malloc (sizeof (struct yy_buffer_state)); 521 b->yy_input_file = 0; 522 b->yy_buf_size = size; 523 524 /* yy_ch_buf has to be 2 characters longer than the size given because 525 we need to put in 2 end-of-buffer characters. */ 526 b->yy_ch_buf = malloc ((unsigned) (b->yy_buf_size + 3)); 527 528 b->yy_ch_buf[0] = '\n'; 529 strcpy (b->yy_ch_buf+1, string); 530 b->yy_ch_buf[size+1] = YY_END_OF_BUFFER_CHAR; 531 b->yy_ch_buf[size+2] = YY_END_OF_BUFFER_CHAR; 532 b->yy_n_chars = size+1; 533 b->yy_buf_pos = &b->yy_ch_buf[1]; 534 535 b->yy_is_our_buffer = 1; 536 b->yy_is_interactive = 0; 537 b->yy_at_bol = 1; 538 b->yy_fill_buffer = 0; 539 540 /* flex 2.4.7 changed the interface. FIXME: We should not be using 541 a flex internal interface in the first place! */ 542 #ifdef YY_BUFFER_NEW 543 b->yy_buffer_status = YY_BUFFER_NEW; 544 #else 545 b->yy_eof_status = EOF_NOT_SEEN; 546 #endif 547 548 return b; 549 } 550 551 /* Switch flex to reading from STRING, saving the current input info 552 on the include stack. */ 553 554 void 555 lex_redirect (const char *string, const char *fake_filename, unsigned int count) 556 { 557 YY_BUFFER_STATE tmp; 558 559 yy_init = 0; 560 if (include_stack_ptr >= MAX_INCLUDE_DEPTH) 561 { 562 einfo (_("%F: macros nested too deeply\n")); 563 } 564 file_name_stack[include_stack_ptr] = fake_filename; 565 lineno_stack[include_stack_ptr] = lineno; 566 include_stack[include_stack_ptr] = YY_CURRENT_BUFFER; 567 include_stack_ptr++; 568 lineno = count; 569 tmp = yy_create_string_buffer (string, strlen (string)); 570 yy_switch_to_buffer (tmp); 571 } 572 573 /* Functions to switch to a different flex start condition, 574 saving the current start condition on `state_stack'. */ 575 576 static int state_stack[MAX_INCLUDE_DEPTH * 2]; 577 static int *state_stack_p = state_stack; 578 579 void 580 ldlex_script (void) 581 { 582 *(state_stack_p)++ = yy_start; 583 BEGIN (SCRIPT); 584 } 585 586 void 587 ldlex_inputlist (void) 588 { 589 *(state_stack_p)++ = yy_start; 590 BEGIN (INPUTLIST); 591 } 592 593 void 594 ldlex_mri_script (void) 595 { 596 *(state_stack_p)++ = yy_start; 597 BEGIN (MRI); 598 } 599 600 void 601 ldlex_version_script (void) 602 { 603 *(state_stack_p)++ = yy_start; 604 BEGIN (VERS_START); 605 } 606 607 void 608 ldlex_version_file (void) 609 { 610 *(state_stack_p)++ = yy_start; 611 BEGIN (VERS_SCRIPT); 612 } 613 614 void 615 ldlex_defsym (void) 616 { 617 *(state_stack_p)++ = yy_start; 618 BEGIN (DEFSYMEXP); 619 } 620 621 void 622 ldlex_expression (void) 623 { 624 *(state_stack_p)++ = yy_start; 625 BEGIN (EXPRESSION); 626 } 627 628 void 629 ldlex_both (void) 630 { 631 *(state_stack_p)++ = yy_start; 632 BEGIN (BOTH); 633 } 634 635 void 636 ldlex_popstate (void) 637 { 638 yy_start = *(--state_stack_p); 639 } 640 641 /* Return the current file name, or the previous file if no file is 642 current. */ 643 644 const char* 645 ldlex_filename (void) 646 { 647 return file_name_stack[include_stack_ptr - (include_stack_ptr != 0)]; 648 } 649 650 651 /* Place up to MAX_SIZE characters in BUF and return 652 either the number of characters read, or 0 to indicate EOF. */ 653 654 static int 655 yy_input (char *buf, int max_size) 656 { 657 int result = 0; 658 if (YY_CURRENT_BUFFER->yy_input_file) 659 { 660 if (yyin) 661 { 662 result = fread (buf, 1, max_size, yyin); 663 if (result < max_size && ferror (yyin)) 664 einfo (_("%F%P: read in flex scanner failed\n")); 665 } 666 } 667 return result; 668 } 669 670 /* Eat the rest of a C-style comment. */ 671 672 static void 673 comment (void) 674 { 675 int c; 676 677 while (1) 678 { 679 c = input(); 680 while (c != '*' && c != 0) 681 { 682 if (c == '\n') 683 lineno++; 684 c = input(); 685 } 686 687 if (c == '*') 688 { 689 c = input(); 690 while (c == '*') 691 c = input(); 692 if (c == '/') 693 break; /* found the end */ 694 } 695 696 if (c == '\n') 697 lineno++; 698 699 if (c == 0) 700 { 701 einfo (_("%F%P: EOF in comment\n")); 702 break; 703 } 704 } 705 } 706 707 /* Warn the user about a garbage character WHAT in the input 708 in context WHERE. */ 709 710 static void 711 lex_warn_invalid (char *where, char *what) 712 { 713 char buf[5]; 714 715 /* If we have found an input file whose format we do not recognize, 716 and we are therefore treating it as a linker script, and we find 717 an invalid character, then most likely this is a real object file 718 of some different format. Treat it as such. */ 719 if (ldfile_assumed_script) 720 { 721 bfd_set_error (bfd_error_file_not_recognized); 722 einfo (_("%F%s: file not recognized: %E\n"), ldlex_filename ()); 723 } 724 725 if (! ISPRINT (*what)) 726 { 727 sprintf (buf, "\\%03o", *(unsigned char *) what); 728 what = buf; 729 } 730 731 einfo (_("%P:%pS: ignoring invalid character `%s'%s\n"), NULL, what, where); 732 } 733