1%option nounput noyywrap 2 3%{ 4 5/* Copyright (C) 1991-2017 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 "ld.h" 29#include "ldmisc.h" 30#include "ldexp.h" 31#include "ldlang.h" 32#include <ldgram.h> 33#include "ldfile.h" 34#include "ldlex.h" 35#include "ldmain.h" 36#include "libiberty.h" 37 38/* The type of top-level parser input. 39 yylex and yyparse (indirectly) both check this. */ 40input_type parser_input; 41 42/* Line number in the current input file. */ 43unsigned int lineno; 44 45/* The string we are currently lexing, or NULL if we are reading a 46 file. */ 47const char *lex_string = NULL; 48 49/* Support for flex reading from more than one input file (stream). 50 `include_stack' is flex's input state for each open file; 51 `file_name_stack' is the file names. `lineno_stack' is the current 52 line numbers. 53 54 If `include_stack_ptr' is 0, we haven't started reading anything yet. 55 Otherwise, stack elements 0 through `include_stack_ptr - 1' are valid. */ 56 57#undef YY_INPUT 58#define YY_INPUT(buf,result,max_size) result = yy_input (buf, max_size) 59 60#ifndef YY_NO_UNPUT 61#define YY_NO_UNPUT 62#endif 63 64#define MAX_INCLUDE_DEPTH 10 65static YY_BUFFER_STATE include_stack[MAX_INCLUDE_DEPTH]; 66static const char *file_name_stack[MAX_INCLUDE_DEPTH]; 67static unsigned int lineno_stack[MAX_INCLUDE_DEPTH]; 68static unsigned int sysrooted_stack[MAX_INCLUDE_DEPTH]; 69static unsigned int include_stack_ptr = 0; 70static int vers_node_nesting = 0; 71 72static int yy_input (char *, int); 73static void comment (void); 74static void lex_warn_invalid (char *where, char *what); 75 76/* STATES 77 EXPRESSION definitely in an expression 78 SCRIPT definitely in a script 79 INPUTLIST definitely in a script, a filename-list 80 BOTH either EXPRESSION or SCRIPT 81 DEFSYMEXP in an argument to -defsym 82 MRI in an MRI script 83 VERS_START starting a Sun style mapfile 84 VERS_SCRIPT a Sun style mapfile 85 VERS_NODE a node within a Sun style mapfile 86*/ 87#define RTOKEN(x) { yylval.token = x; return x; } 88 89%} 90 91%a 4000 92%o 5000 93 94CMDFILENAMECHAR [_a-zA-Z0-9\/\.\\_\+\$\:\[\]\\\,\=\&\!\<\>\-\~] 95CMDFILENAMECHAR1 [_a-zA-Z0-9\/\.\\_\+\$\:\[\]\\\,\=\&\!\<\>\~] 96FILENAMECHAR1 [_a-zA-Z\/\.\\\$\_\~] 97SYMBOLCHARN [_a-zA-Z\/\.\\\$\_\~0-9] 98FILENAMECHAR [_a-zA-Z0-9\/\.\-\_\+\=\$\:\[\]\\\,\~] 99WILDCHAR [_a-zA-Z0-9\/\.\-\_\+\=\$\:\[\]\\\,\~\?\*\^\!] 100WHITE [ \t\n\r]+ 101 102NOCFILENAMECHAR [_a-zA-Z0-9\/\.\-\_\+\$\:\[\]\\\~] 103 104V_TAG [.$_a-zA-Z][._a-zA-Z0-9]* 105V_IDENTIFIER [*?.$_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>{FILENAMECHAR1}{SYMBOLCHARN}* { yylval.name = xstrdup (yytext); return NAME; } 140<DEFSYMEXP>"=" { RTOKEN('='); } 141 142<MRI,EXPRESSION>"$"([0-9A-Fa-f])+ { 143 yylval.integer = bfd_scan_vma (yytext + 1, 0, 16); 144 yylval.bigint.str = NULL; 145 return INT; 146 } 147 148<MRI,EXPRESSION>([0-9A-Fa-f])+(H|h|X|x|B|b|O|o|D|d) { 149 int ibase ; 150 switch (yytext[yyleng - 1]) { 151 case 'X': 152 case 'x': 153 case 'H': 154 case 'h': 155 ibase = 16; 156 break; 157 case 'O': 158 case 'o': 159 ibase = 8; 160 break; 161 case 'B': 162 case 'b': 163 ibase = 2; 164 break; 165 default: 166 ibase = 10; 167 } 168 yylval.integer = bfd_scan_vma (yytext, 0, 169 ibase); 170 yylval.bigint.str = NULL; 171 return INT; 172 } 173<SCRIPT,DEFSYMEXP,MRI,BOTH,EXPRESSION>((("$"|0[xX])([0-9A-Fa-f])+)|(([0-9])+))(M|K|m|k)? { 174 char *s = yytext; 175 int ibase = 0; 176 177 if (*s == '$') 178 { 179 ++s; 180 ibase = 16; 181 } 182 yylval.integer = bfd_scan_vma (s, 0, ibase); 183 yylval.bigint.str = NULL; 184 if (yytext[yyleng - 1] == 'M' 185 || yytext[yyleng - 1] == 'm') 186 { 187 yylval.integer *= 1024 * 1024; 188 } 189 else if (yytext[yyleng - 1] == 'K' 190 || yytext[yyleng - 1]=='k') 191 { 192 yylval.integer *= 1024; 193 } 194 else if (yytext[0] == '0' 195 && (yytext[1] == 'x' 196 || yytext[1] == 'X')) 197 { 198 yylval.bigint.str = xstrdup (yytext + 2); 199 } 200 return INT; 201 } 202<BOTH,SCRIPT,EXPRESSION,MRI>"]" { RTOKEN(']');} 203<BOTH,SCRIPT,EXPRESSION,MRI>"[" { RTOKEN('[');} 204<BOTH,SCRIPT,EXPRESSION,MRI>"<<=" { RTOKEN(LSHIFTEQ);} 205<BOTH,SCRIPT,EXPRESSION,MRI>">>=" { RTOKEN(RSHIFTEQ);} 206<BOTH,SCRIPT,EXPRESSION,MRI>"||" { RTOKEN(OROR);} 207<BOTH,SCRIPT,EXPRESSION,MRI>"==" { RTOKEN(EQ);} 208<BOTH,SCRIPT,EXPRESSION,MRI>"!=" { RTOKEN(NE);} 209<BOTH,SCRIPT,EXPRESSION,MRI>">=" { RTOKEN(GE);} 210<BOTH,SCRIPT,EXPRESSION,MRI>"<=" { RTOKEN(LE);} 211<BOTH,SCRIPT,EXPRESSION,MRI>"<<" { RTOKEN(LSHIFT);} 212<BOTH,SCRIPT,EXPRESSION,MRI>">>" { RTOKEN(RSHIFT);} 213<BOTH,SCRIPT,EXPRESSION,MRI>"+=" { RTOKEN(PLUSEQ);} 214<BOTH,SCRIPT,EXPRESSION,MRI>"-=" { RTOKEN(MINUSEQ);} 215<BOTH,SCRIPT,EXPRESSION,MRI>"*=" { RTOKEN(MULTEQ);} 216<BOTH,SCRIPT,EXPRESSION,MRI>"/=" { RTOKEN(DIVEQ);} 217<BOTH,SCRIPT,EXPRESSION,MRI>"&=" { RTOKEN(ANDEQ);} 218<BOTH,SCRIPT,EXPRESSION,MRI>"|=" { RTOKEN(OREQ);} 219<BOTH,SCRIPT,EXPRESSION,MRI>"&&" { RTOKEN(ANDAND);} 220<BOTH,SCRIPT,EXPRESSION,MRI>">" { RTOKEN('>');} 221<BOTH,SCRIPT,EXPRESSION,MRI,INPUTLIST>"," { 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>"}" { RTOKEN('}') ; } 235<BOTH,SCRIPT,EXPRESSION,MRI>"{" { RTOKEN('{'); } 236<BOTH,SCRIPT,EXPRESSION,MRI,INPUTLIST>")" { RTOKEN(')');} 237<BOTH,SCRIPT,EXPRESSION,MRI,INPUTLIST>"(" { RTOKEN('(');} 238<BOTH,SCRIPT,EXPRESSION,MRI>":" { RTOKEN(':'); } 239<BOTH,SCRIPT,EXPRESSION,MRI>";" { RTOKEN(';');} 240<BOTH,SCRIPT>"MEMORY" { RTOKEN(MEMORY);} 241<BOTH,SCRIPT>"REGION_ALIAS" { RTOKEN(REGION_ALIAS);} 242<BOTH,SCRIPT>"LD_FEATURE" { RTOKEN(LD_FEATURE);} 243<BOTH,SCRIPT,EXPRESSION>"ORIGIN" { RTOKEN(ORIGIN);} 244<BOTH,SCRIPT>"VERSION" { RTOKEN(VERSIONK);} 245<EXPRESSION,BOTH,SCRIPT>"BLOCK" { RTOKEN(BLOCK);} 246<EXPRESSION,BOTH,SCRIPT>"BIND" { RTOKEN(BIND);} 247<BOTH,SCRIPT,EXPRESSION>"LENGTH" { RTOKEN(LENGTH);} 248<EXPRESSION,BOTH,SCRIPT>"ALIGN" { RTOKEN(ALIGN_K);} 249<EXPRESSION,BOTH,SCRIPT>"DATA_SEGMENT_ALIGN" { RTOKEN(DATA_SEGMENT_ALIGN);} 250<EXPRESSION,BOTH,SCRIPT>"DATA_SEGMENT_RELRO_END" { RTOKEN(DATA_SEGMENT_RELRO_END);} 251<EXPRESSION,BOTH,SCRIPT>"DATA_SEGMENT_END" { RTOKEN(DATA_SEGMENT_END);} 252<EXPRESSION,BOTH,SCRIPT>"ADDR" { RTOKEN(ADDR);} 253<EXPRESSION,BOTH,SCRIPT>"LOADADDR" { RTOKEN(LOADADDR);} 254<EXPRESSION,BOTH,SCRIPT>"ALIGNOF" { RTOKEN(ALIGNOF); } 255<EXPRESSION,BOTH>"MAX" { RTOKEN(MAX_K); } 256<EXPRESSION,BOTH>"MIN" { RTOKEN(MIN_K); } 257<EXPRESSION,BOTH>"LOG2CEIL" { RTOKEN(LOG2CEIL); } 258<EXPRESSION,BOTH,SCRIPT>"ASSERT" { RTOKEN(ASSERT_K); } 259<BOTH,SCRIPT>"ENTRY" { RTOKEN(ENTRY);} 260<BOTH,SCRIPT,MRI>"EXTERN" { RTOKEN(EXTERN);} 261<EXPRESSION,BOTH,SCRIPT>"NEXT" { RTOKEN(NEXT);} 262<EXPRESSION,BOTH,SCRIPT>"sizeof_headers" { RTOKEN(SIZEOF_HEADERS);} 263<EXPRESSION,BOTH,SCRIPT>"SIZEOF_HEADERS" { RTOKEN(SIZEOF_HEADERS);} 264<EXPRESSION,BOTH,SCRIPT>"SEGMENT_START" { RTOKEN(SEGMENT_START);} 265<BOTH,SCRIPT>"MAP" { RTOKEN(MAP);} 266<EXPRESSION,BOTH,SCRIPT>"SIZEOF" { RTOKEN(SIZEOF);} 267<BOTH,SCRIPT>"TARGET" { RTOKEN(TARGET_K);} 268<BOTH,SCRIPT>"SEARCH_DIR" { RTOKEN(SEARCH_DIR);} 269<BOTH,SCRIPT>"OUTPUT" { RTOKEN(OUTPUT);} 270<BOTH,SCRIPT>"INPUT" { RTOKEN(INPUT);} 271<EXPRESSION,BOTH,SCRIPT>"GROUP" { RTOKEN(GROUP);} 272<EXPRESSION,BOTH,SCRIPT,INPUTLIST>"AS_NEEDED" { RTOKEN(AS_NEEDED);} 273<EXPRESSION,BOTH,SCRIPT>"DEFINED" { RTOKEN(DEFINED);} 274<BOTH,SCRIPT>"CREATE_OBJECT_SYMBOLS" { RTOKEN(CREATE_OBJECT_SYMBOLS);} 275<BOTH,SCRIPT>"CONSTRUCTORS" { RTOKEN( CONSTRUCTORS);} 276<BOTH,SCRIPT>"FORCE_COMMON_ALLOCATION" { RTOKEN(FORCE_COMMON_ALLOCATION);} 277<BOTH,SCRIPT>"INHIBIT_COMMON_ALLOCATION" { RTOKEN(INHIBIT_COMMON_ALLOCATION);} 278<BOTH,SCRIPT>"SECTIONS" { RTOKEN(SECTIONS);} 279<BOTH,SCRIPT>"INSERT" { RTOKEN(INSERT_K);} 280<BOTH,SCRIPT>"AFTER" { RTOKEN(AFTER);} 281<BOTH,SCRIPT>"BEFORE" { RTOKEN(BEFORE);} 282<BOTH,SCRIPT>"FILL" { RTOKEN(FILL);} 283<BOTH,SCRIPT>"STARTUP" { RTOKEN(STARTUP);} 284<BOTH,SCRIPT>"OUTPUT_FORMAT" { RTOKEN(OUTPUT_FORMAT);} 285<BOTH,SCRIPT>"OUTPUT_ARCH" { RTOKEN( OUTPUT_ARCH);} 286<BOTH,SCRIPT>"HLL" { RTOKEN(HLL);} 287<BOTH,SCRIPT>"SYSLIB" { RTOKEN(SYSLIB);} 288<BOTH,SCRIPT>"FLOAT" { RTOKEN(FLOAT);} 289<BOTH,SCRIPT>"QUAD" { RTOKEN( QUAD);} 290<BOTH,SCRIPT>"SQUAD" { RTOKEN( SQUAD);} 291<BOTH,SCRIPT>"LONG" { RTOKEN( LONG);} 292<BOTH,SCRIPT>"SHORT" { RTOKEN( SHORT);} 293<BOTH,SCRIPT>"BYTE" { RTOKEN( BYTE);} 294<BOTH,SCRIPT>"NOFLOAT" { RTOKEN(NOFLOAT);} 295<EXPRESSION,BOTH,SCRIPT>"NOCROSSREFS" { RTOKEN(NOCROSSREFS);} 296<EXPRESSION,BOTH,SCRIPT>"NOCROSSREFS_TO" { RTOKEN(NOCROSSREFS_TO);} 297<BOTH,SCRIPT>"OVERLAY" { RTOKEN(OVERLAY); } 298<BOTH,SCRIPT>"SORT_BY_NAME" { RTOKEN(SORT_BY_NAME); } 299<BOTH,SCRIPT>"SORT_BY_ALIGNMENT" { RTOKEN(SORT_BY_ALIGNMENT); } 300<BOTH,SCRIPT>"SORT" { RTOKEN(SORT_BY_NAME); } 301<BOTH,SCRIPT>"SORT_BY_INIT_PRIORITY" { RTOKEN(SORT_BY_INIT_PRIORITY); } 302<BOTH,SCRIPT>"SORT_NONE" { RTOKEN(SORT_NONE); } 303<EXPRESSION,BOTH,SCRIPT>"NOLOAD" { RTOKEN(NOLOAD);} 304<EXPRESSION,BOTH,SCRIPT>"DSECT" { RTOKEN(DSECT);} 305<EXPRESSION,BOTH,SCRIPT>"COPY" { RTOKEN(COPY);} 306<EXPRESSION,BOTH,SCRIPT>"INFO" { RTOKEN(INFO);} 307<EXPRESSION,BOTH,SCRIPT>"OVERLAY" { RTOKEN(OVERLAY);} 308<EXPRESSION,BOTH,SCRIPT>"ONLY_IF_RO" { RTOKEN(ONLY_IF_RO); } 309<EXPRESSION,BOTH,SCRIPT>"ONLY_IF_RW" { RTOKEN(ONLY_IF_RW); } 310<EXPRESSION,BOTH,SCRIPT>"SPECIAL" { RTOKEN(SPECIAL); } 311<BOTH,SCRIPT>"o" { RTOKEN(ORIGIN);} 312<BOTH,SCRIPT>"org" { RTOKEN(ORIGIN);} 313<BOTH,SCRIPT>"l" { RTOKEN( LENGTH);} 314<BOTH,SCRIPT>"len" { RTOKEN( LENGTH);} 315<EXPRESSION,BOTH,SCRIPT>"INPUT_SECTION_FLAGS" { RTOKEN(INPUT_SECTION_FLAGS); } 316<EXPRESSION,BOTH,SCRIPT>"INCLUDE" { RTOKEN(INCLUDE);} 317<BOTH,SCRIPT>"PHDRS" { RTOKEN (PHDRS); } 318<EXPRESSION,BOTH,SCRIPT>"AT" { RTOKEN(AT);} 319<EXPRESSION,BOTH,SCRIPT>"ALIGN_WITH_INPUT" { RTOKEN(ALIGN_WITH_INPUT);} 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,INPUTLIST>{FILENAMECHAR1}{FILENAMECHAR}* { 375 yylval.name = xstrdup (yytext); 376 return NAME; 377 } 378<INPUTLIST>"="{FILENAMECHAR1}{FILENAMECHAR}* { 379/* Filename to be prefixed by --sysroot or when non-sysrooted, nothing. */ 380 yylval.name = xstrdup (yytext); 381 return NAME; 382 } 383<BOTH,INPUTLIST>"-l"{FILENAMECHAR}+ { 384 yylval.name = xstrdup (yytext + 2); 385 return LNAME; 386 } 387<EXPRESSION>{FILENAMECHAR1}{NOCFILENAMECHAR}* { 388 yylval.name = xstrdup (yytext); 389 return NAME; 390 } 391<EXPRESSION>"-l"{NOCFILENAMECHAR}+ { 392 yylval.name = xstrdup (yytext + 2); 393 return LNAME; 394 } 395<SCRIPT>{WILDCHAR}* { 396 /* Annoyingly, this pattern can match comments, and we have 397 longest match issues to consider. So if the first two 398 characters are a comment opening, put the input back and 399 try again. */ 400 if (yytext[0] == '/' && yytext[1] == '*') 401 { 402 yyless (2); 403 comment (); 404 } 405 else 406 { 407 yylval.name = xstrdup (yytext); 408 return NAME; 409 } 410 } 411 412<EXPRESSION,BOTH,SCRIPT,VERS_NODE,INPUTLIST>"\""[^\"]*"\"" { 413 /* No matter the state, quotes 414 give what's inside. */ 415 bfd_size_type len; 416 yylval.name = xstrdup (yytext + 1); 417 /* PR ld/20906. A corrupt input file 418 can contain bogus strings. */ 419 len = strlen (yylval.name); 420 if (len > yyleng - 2) 421 len = yyleng - 2; 422 yylval.name[len] = 0; 423 return NAME; 424 } 425<BOTH,SCRIPT,EXPRESSION>"\n" { lineno++;} 426<MRI,BOTH,SCRIPT,EXPRESSION>[ \t\r]+ { } 427 428<VERS_NODE,VERS_SCRIPT>[:,;] { return *yytext; } 429 430<VERS_NODE>global { RTOKEN(GLOBAL); } 431 432<VERS_NODE>local { RTOKEN(LOCAL); } 433 434<VERS_NODE>extern { RTOKEN(EXTERN); } 435 436<VERS_NODE>{V_IDENTIFIER} { yylval.name = xstrdup (yytext); 437 return VERS_IDENTIFIER; } 438 439<VERS_SCRIPT>{V_TAG} { yylval.name = xstrdup (yytext); 440 return VERS_TAG; } 441 442<VERS_START>"{" { BEGIN(VERS_SCRIPT); return *yytext; } 443 444<VERS_SCRIPT>"{" { BEGIN(VERS_NODE); 445 vers_node_nesting = 0; 446 return *yytext; 447 } 448<VERS_SCRIPT>"}" { return *yytext; } 449<VERS_NODE>"{" { vers_node_nesting++; return *yytext; } 450<VERS_NODE>"}" { if (--vers_node_nesting < 0) 451 BEGIN(VERS_SCRIPT); 452 return *yytext; 453 } 454 455<VERS_START,VERS_NODE,VERS_SCRIPT,INPUTLIST>[\n] { lineno++; } 456 457<VERS_START,VERS_NODE,VERS_SCRIPT>#.* { /* Eat up comments */ } 458 459<VERS_START,VERS_NODE,VERS_SCRIPT,INPUTLIST>[ \t\r]+ { /* Eat up whitespace */ } 460 461<<EOF>> { 462 include_stack_ptr--; 463 if (include_stack_ptr == 0) 464 { 465 lineno = 0; 466 yyterminate (); 467 } 468 else 469 yy_switch_to_buffer (include_stack[include_stack_ptr]); 470 471 lineno = lineno_stack[include_stack_ptr]; 472 input_flags.sysrooted = sysrooted_stack[include_stack_ptr]; 473 474 return END; 475} 476 477<SCRIPT,MRI,VERS_START,VERS_SCRIPT,VERS_NODE>. lex_warn_invalid (" in script", yytext); 478<EXPRESSION,DEFSYMEXP,BOTH>. lex_warn_invalid (" in expression", yytext); 479 480%% 481 482 483/* Switch flex to reading script file NAME, open on FILE, 484 saving the current input info on the include stack. */ 485 486void 487lex_push_file (FILE *file, const char *name, unsigned int sysrooted) 488{ 489 if (include_stack_ptr >= MAX_INCLUDE_DEPTH) 490 { 491 einfo ("%F:includes nested too deeply\n"); 492 } 493 file_name_stack[include_stack_ptr] = name; 494 lineno_stack[include_stack_ptr] = lineno; 495 sysrooted_stack[include_stack_ptr] = input_flags.sysrooted; 496 include_stack[include_stack_ptr] = YY_CURRENT_BUFFER; 497 498 include_stack_ptr++; 499 lineno = 1; 500 input_flags.sysrooted = sysrooted; 501 yyin = file; 502 yy_switch_to_buffer (yy_create_buffer (yyin, YY_BUF_SIZE)); 503} 504 505/* Return a newly created flex input buffer containing STRING, 506 which is SIZE bytes long. */ 507 508static YY_BUFFER_STATE 509yy_create_string_buffer (const char *string, size_t size) 510{ 511 YY_BUFFER_STATE b; 512 513 /* Calls to m-alloc get turned by sed into xm-alloc. */ 514 b = malloc (sizeof (struct yy_buffer_state)); 515 b->yy_input_file = 0; 516 b->yy_buf_size = size; 517 518 /* yy_ch_buf has to be 2 characters longer than the size given because 519 we need to put in 2 end-of-buffer characters. */ 520 b->yy_ch_buf = malloc ((unsigned) (b->yy_buf_size + 3)); 521 522 b->yy_ch_buf[0] = '\n'; 523 strcpy (b->yy_ch_buf+1, string); 524 b->yy_ch_buf[size+1] = YY_END_OF_BUFFER_CHAR; 525 b->yy_ch_buf[size+2] = YY_END_OF_BUFFER_CHAR; 526 b->yy_n_chars = size+1; 527 b->yy_buf_pos = &b->yy_ch_buf[1]; 528 529 b->yy_is_our_buffer = 1; 530 b->yy_is_interactive = 0; 531 b->yy_at_bol = 1; 532 b->yy_fill_buffer = 0; 533 534 /* flex 2.4.7 changed the interface. FIXME: We should not be using 535 a flex internal interface in the first place! */ 536#ifdef YY_BUFFER_NEW 537 b->yy_buffer_status = YY_BUFFER_NEW; 538#else 539 b->yy_eof_status = EOF_NOT_SEEN; 540#endif 541 542 return b; 543} 544 545/* Switch flex to reading from STRING, saving the current input info 546 on the include stack. */ 547 548void 549lex_redirect (const char *string, const char *fake_filename, unsigned int count) 550{ 551 YY_BUFFER_STATE tmp; 552 553 yy_init = 0; 554 if (include_stack_ptr >= MAX_INCLUDE_DEPTH) 555 { 556 einfo("%F: macros nested too deeply\n"); 557 } 558 file_name_stack[include_stack_ptr] = fake_filename; 559 lineno_stack[include_stack_ptr] = lineno; 560 include_stack[include_stack_ptr] = YY_CURRENT_BUFFER; 561 include_stack_ptr++; 562 lineno = count; 563 tmp = yy_create_string_buffer (string, strlen (string)); 564 yy_switch_to_buffer (tmp); 565} 566 567/* Functions to switch to a different flex start condition, 568 saving the current start condition on `state_stack'. */ 569 570static int state_stack[MAX_INCLUDE_DEPTH * 2]; 571static int *state_stack_p = state_stack; 572 573void 574ldlex_script (void) 575{ 576 *(state_stack_p)++ = yy_start; 577 BEGIN (SCRIPT); 578} 579 580void 581ldlex_inputlist (void) 582{ 583 *(state_stack_p)++ = yy_start; 584 BEGIN (INPUTLIST); 585} 586 587void 588ldlex_mri_script (void) 589{ 590 *(state_stack_p)++ = yy_start; 591 BEGIN (MRI); 592} 593 594void 595ldlex_version_script (void) 596{ 597 *(state_stack_p)++ = yy_start; 598 BEGIN (VERS_START); 599} 600 601void 602ldlex_version_file (void) 603{ 604 *(state_stack_p)++ = yy_start; 605 BEGIN (VERS_SCRIPT); 606} 607 608void 609ldlex_defsym (void) 610{ 611 *(state_stack_p)++ = yy_start; 612 BEGIN (DEFSYMEXP); 613} 614 615void 616ldlex_expression (void) 617{ 618 *(state_stack_p)++ = yy_start; 619 BEGIN (EXPRESSION); 620} 621 622void 623ldlex_both (void) 624{ 625 *(state_stack_p)++ = yy_start; 626 BEGIN (BOTH); 627} 628 629void 630ldlex_popstate (void) 631{ 632 yy_start = *(--state_stack_p); 633} 634 635/* Return the current file name, or the previous file if no file is 636 current. */ 637 638const char* 639ldlex_filename (void) 640{ 641 return file_name_stack[include_stack_ptr - (include_stack_ptr != 0)]; 642} 643 644 645/* Place up to MAX_SIZE characters in BUF and return 646 either the number of characters read, or 0 to indicate EOF. */ 647 648static int 649yy_input (char *buf, int max_size) 650{ 651 int result = 0; 652 if (YY_CURRENT_BUFFER->yy_input_file) 653 { 654 if (yyin) 655 { 656 result = fread (buf, 1, max_size, yyin); 657 if (result < max_size && ferror (yyin)) 658 einfo ("%F%P: read in flex scanner failed\n"); 659 } 660 } 661 return result; 662} 663 664/* Eat the rest of a C-style comment. */ 665 666static void 667comment (void) 668{ 669 int c; 670 671 while (1) 672 { 673 c = input(); 674 while (c != '*' && c != EOF) 675 { 676 if (c == '\n') 677 lineno++; 678 c = input(); 679 } 680 681 if (c == '*') 682 { 683 c = input(); 684 while (c == '*') 685 c = input(); 686 if (c == '/') 687 break; /* found the end */ 688 } 689 690 if (c == '\n') 691 lineno++; 692 693 if (c == EOF) 694 { 695 einfo( "%F%P: EOF in comment\n"); 696 break; 697 } 698 } 699} 700 701/* Warn the user about a garbage character WHAT in the input 702 in context WHERE. */ 703 704static void 705lex_warn_invalid (char *where, char *what) 706{ 707 char buf[5]; 708 709 /* If we have found an input file whose format we do not recognize, 710 and we are therefore treating it as a linker script, and we find 711 an invalid character, then most likely this is a real object file 712 of some different format. Treat it as such. */ 713 if (ldfile_assumed_script) 714 { 715 bfd_set_error (bfd_error_file_not_recognized); 716 einfo ("%F%s: file not recognized: %E\n", ldlex_filename ()); 717 } 718 719 if (! ISPRINT (*what)) 720 { 721 sprintf (buf, "\\%03o", *(unsigned char *) what); 722 what = buf; 723 } 724 725 einfo ("%P:%S: ignoring invalid character `%s'%s\n", NULL, what, where); 726} 727