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. */ 41input_type parser_input; 42 43/* Line number in the current input file. */ 44unsigned int lineno; 45 46/* The string we are currently lexing, or NULL if we are reading a 47 file. */ 48const 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#ifndef YY_NO_UNPUT 62#define YY_NO_UNPUT 63#endif 64 65#define MAX_INCLUDE_DEPTH 10 66static YY_BUFFER_STATE include_stack[MAX_INCLUDE_DEPTH]; 67static const char *file_name_stack[MAX_INCLUDE_DEPTH]; 68static unsigned int lineno_stack[MAX_INCLUDE_DEPTH]; 69static unsigned int sysrooted_stack[MAX_INCLUDE_DEPTH]; 70static unsigned int include_stack_ptr = 0; 71static int vers_node_nesting = 0; 72 73static int yy_input (char *, int); 74static void comment (void); 75static void lex_warn_invalid (char *where, char *what); 76 77/* STATES 78 EXPRESSION definitely in an expression 79 SCRIPT definitely in a script 80 INPUTLIST definitely in a script, a filename-list 81 BOTH either EXPRESSION or SCRIPT 82 DEFSYMEXP in an argument to -defsym 83 MRI in an MRI script 84 VERS_START starting a Sun style mapfile 85 VERS_SCRIPT a Sun style mapfile 86 VERS_NODE a node within a Sun style mapfile 87*/ 88#define RTOKEN(x) { yylval.token = x; return x; } 89 90%} 91 92%a 4000 93%o 5000 94 95WILDCHAR [_a-zA-Z0-9\/\.\\\$\~\-\+\:\[\]\,\=\?\*\^\!] 96FILENAMECHAR [_a-zA-Z0-9\/\.\\\$\~\-\+\:\[\]\,\=] 97NOCFILENAMECHAR [_a-zA-Z0-9\/\.\\\$\~\-\+\:\[\]] 98SYMBOLNAMECHAR [_a-zA-Z0-9\/\.\\\$\~] 99FILENAMECHAR1 [_a-zA-Z\/\.\\\$\~] 100SYMBOLNAMECHAR1 [_a-zA-Z\.\\\$] 101WHITE [ \t\n\r]+ 102 103V_TAG [.$_a-zA-Z][._a-zA-Z0-9]* 104V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)* 105 106%s SCRIPT 107%s INPUTLIST 108%s EXPRESSION 109%s BOTH 110%s DEFSYMEXP 111%s MRI 112%s VERS_START 113%s VERS_SCRIPT 114%s VERS_NODE 115%% 116 117 if (parser_input != input_selected) 118 { 119 /* The first token of the input determines the initial parser state. */ 120 input_type t = parser_input; 121 parser_input = input_selected; 122 switch (t) 123 { 124 case input_script: return INPUT_SCRIPT; break; 125 case input_mri_script: return INPUT_MRI_SCRIPT; break; 126 case input_version_script: return INPUT_VERSION_SCRIPT; break; 127 case input_dynamic_list: return INPUT_DYNAMIC_LIST; break; 128 case input_defsym: return INPUT_DEFSYM; break; 129 default: abort (); 130 } 131 } 132 133<BOTH,SCRIPT,EXPRESSION,VERS_START,VERS_NODE,VERS_SCRIPT,INPUTLIST>"/*" { comment (); } 134 135 136<DEFSYMEXP>"-" { RTOKEN('-');} 137<DEFSYMEXP>"+" { RTOKEN('+');} 138<DEFSYMEXP>{SYMBOLNAMECHAR1}{SYMBOLNAMECHAR}* { yylval.name = xstrdup (yytext); 139 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>"FORCE_GROUP_ALLOCATION" { RTOKEN(FORCE_GROUP_ALLOCATION);} 278<BOTH,SCRIPT>"INHIBIT_COMMON_ALLOCATION" { RTOKEN(INHIBIT_COMMON_ALLOCATION);} 279<BOTH,SCRIPT>"SECTIONS" { RTOKEN(SECTIONS);} 280<BOTH,SCRIPT>"INSERT" { RTOKEN(INSERT_K);} 281<BOTH,SCRIPT>"AFTER" { RTOKEN(AFTER);} 282<BOTH,SCRIPT>"BEFORE" { RTOKEN(BEFORE);} 283<BOTH,SCRIPT>"FILL" { RTOKEN(FILL);} 284<BOTH,SCRIPT>"STARTUP" { RTOKEN(STARTUP);} 285<BOTH,SCRIPT>"OUTPUT_FORMAT" { RTOKEN(OUTPUT_FORMAT);} 286<BOTH,SCRIPT>"OUTPUT_ARCH" { RTOKEN( OUTPUT_ARCH);} 287<BOTH,SCRIPT>"HLL" { RTOKEN(HLL);} 288<BOTH,SCRIPT>"SYSLIB" { RTOKEN(SYSLIB);} 289<BOTH,SCRIPT>"FLOAT" { RTOKEN(FLOAT);} 290<BOTH,SCRIPT>"QUAD" { RTOKEN( QUAD);} 291<BOTH,SCRIPT>"SQUAD" { RTOKEN( SQUAD);} 292<BOTH,SCRIPT>"LONG" { RTOKEN( LONG);} 293<BOTH,SCRIPT>"SHORT" { RTOKEN( SHORT);} 294<BOTH,SCRIPT>"BYTE" { RTOKEN( BYTE);} 295<BOTH,SCRIPT>"NOFLOAT" { RTOKEN(NOFLOAT);} 296<EXPRESSION,BOTH,SCRIPT>"NOCROSSREFS" { RTOKEN(NOCROSSREFS);} 297<EXPRESSION,BOTH,SCRIPT>"NOCROSSREFS_TO" { RTOKEN(NOCROSSREFS_TO);} 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>"ALIGN_WITH_INPUT" { RTOKEN(ALIGN_WITH_INPUT);} 321<EXPRESSION,BOTH,SCRIPT>"SUBALIGN" { RTOKEN(SUBALIGN);} 322<EXPRESSION,BOTH,SCRIPT>"HIDDEN" { RTOKEN(HIDDEN); } 323<EXPRESSION,BOTH,SCRIPT>"PROVIDE" { RTOKEN(PROVIDE); } 324<EXPRESSION,BOTH,SCRIPT>"PROVIDE_HIDDEN" { RTOKEN(PROVIDE_HIDDEN); } 325<EXPRESSION,BOTH,SCRIPT>"KEEP" { RTOKEN(KEEP); } 326<EXPRESSION,BOTH,SCRIPT>"EXCLUDE_FILE" { RTOKEN(EXCLUDE_FILE); } 327<EXPRESSION,BOTH,SCRIPT>"CONSTANT" { RTOKEN(CONSTANT);} 328<MRI>"#".*\n? { ++ lineno; } 329<MRI>"\n" { ++ lineno; RTOKEN(NEWLINE); } 330<MRI>"*".* { /* Mri comment line */ } 331<MRI>";".* { /* Mri comment line */ } 332<MRI>"END" { RTOKEN(ENDWORD); } 333<MRI>"ALIGNMOD" { RTOKEN(ALIGNMOD);} 334<MRI>"ALIGN" { RTOKEN(ALIGN_K);} 335<MRI>"CHIP" { RTOKEN(CHIP); } 336<MRI>"BASE" { RTOKEN(BASE); } 337<MRI>"ALIAS" { RTOKEN(ALIAS); } 338<MRI>"TRUNCATE" { RTOKEN(TRUNCATE); } 339<MRI>"LOAD" { RTOKEN(LOAD); } 340<MRI>"PUBLIC" { RTOKEN(PUBLIC); } 341<MRI>"ORDER" { RTOKEN(ORDER); } 342<MRI>"NAME" { RTOKEN(NAMEWORD); } 343<MRI>"FORMAT" { RTOKEN(FORMAT); } 344<MRI>"CASE" { RTOKEN(CASE); } 345<MRI>"START" { RTOKEN(START); } 346<MRI>"LIST".* { RTOKEN(LIST); /* LIST and ignore to end of line */ } 347<MRI>"SECT" { RTOKEN(SECT); } 348<EXPRESSION,BOTH,SCRIPT,MRI>"ABSOLUTE" { RTOKEN(ABSOLUTE); } 349<MRI>"end" { RTOKEN(ENDWORD); } 350<MRI>"alignmod" { RTOKEN(ALIGNMOD);} 351<MRI>"align" { RTOKEN(ALIGN_K);} 352<MRI>"chip" { RTOKEN(CHIP); } 353<MRI>"base" { RTOKEN(BASE); } 354<MRI>"alias" { RTOKEN(ALIAS); } 355<MRI>"truncate" { RTOKEN(TRUNCATE); } 356<MRI>"load" { RTOKEN(LOAD); } 357<MRI>"public" { RTOKEN(PUBLIC); } 358<MRI>"order" { RTOKEN(ORDER); } 359<MRI>"name" { RTOKEN(NAMEWORD); } 360<MRI>"format" { RTOKEN(FORMAT); } 361<MRI>"case" { RTOKEN(CASE); } 362<MRI>"extern" { RTOKEN(EXTERN); } 363<MRI>"start" { RTOKEN(START); } 364<MRI>"list".* { RTOKEN(LIST); /* LIST and ignore to end of line */ } 365<MRI>"sect" { RTOKEN(SECT); } 366<EXPRESSION,BOTH,SCRIPT,MRI>"absolute" { RTOKEN(ABSOLUTE); } 367 368<MRI>{FILENAMECHAR1}{NOCFILENAMECHAR}* { 369/* Filename without commas, needed to parse mri stuff */ 370 yylval.name = xstrdup (yytext); 371 return NAME; 372 } 373 374 375<BOTH,INPUTLIST>{FILENAMECHAR1}{FILENAMECHAR}* { 376 yylval.name = xstrdup (yytext); 377 return NAME; 378 } 379<INPUTLIST>"="{FILENAMECHAR1}{FILENAMECHAR}* { 380/* Filename to be prefixed by --sysroot or when non-sysrooted, nothing. */ 381 yylval.name = xstrdup (yytext); 382 return NAME; 383 } 384<BOTH,INPUTLIST>"-l"{FILENAMECHAR}+ { 385 yylval.name = xstrdup (yytext + 2); 386 return LNAME; 387 } 388<EXPRESSION>{SYMBOLNAMECHAR1}{NOCFILENAMECHAR}* { 389 yylval.name = xstrdup (yytext); 390 return NAME; 391 } 392<EXPRESSION>"/DISCARD/" { 393 yylval.name = xstrdup (yytext); 394 return NAME; 395 } 396<EXPRESSION>"-l"{NOCFILENAMECHAR}+ { 397 yylval.name = xstrdup (yytext + 2); 398 return LNAME; 399 } 400<SCRIPT>{WILDCHAR}* { 401 /* Annoyingly, this pattern can match comments, and we have 402 longest match issues to consider. So if the first two 403 characters are a comment opening, put the input back and 404 try again. */ 405 if (yytext[0] == '/' && yytext[1] == '*') 406 { 407 yyless (2); 408 comment (); 409 } 410 else 411 { 412 yylval.name = xstrdup (yytext); 413 return NAME; 414 } 415 } 416 417<EXPRESSION,BOTH,SCRIPT,VERS_NODE,INPUTLIST>"\""[^\"]*"\"" { 418 /* No matter the state, quotes 419 give what's inside. */ 420 bfd_size_type len; 421 yylval.name = xstrdup (yytext + 1); 422 /* PR ld/20906. A corrupt input file 423 can contain bogus strings. */ 424 len = strlen (yylval.name); 425 if (len > (bfd_size_type) yyleng - 2) 426 len = yyleng - 2; 427 yylval.name[len] = 0; 428 return NAME; 429 } 430<BOTH,SCRIPT,EXPRESSION>"\n" { lineno++;} 431<MRI,BOTH,SCRIPT,EXPRESSION>[ \t\r]+ { } 432 433<VERS_NODE,VERS_SCRIPT>[:,;] { return *yytext; } 434 435<VERS_NODE>global { RTOKEN(GLOBAL); } 436 437<VERS_NODE>local { RTOKEN(LOCAL); } 438 439<VERS_NODE>extern { RTOKEN(EXTERN); } 440 441<VERS_NODE>{V_IDENTIFIER} { yylval.name = xstrdup (yytext); 442 return VERS_IDENTIFIER; } 443 444<VERS_SCRIPT>{V_TAG} { yylval.name = xstrdup (yytext); 445 return VERS_TAG; } 446 447<VERS_START>"{" { BEGIN(VERS_SCRIPT); return *yytext; } 448 449<VERS_SCRIPT>"{" { BEGIN(VERS_NODE); 450 vers_node_nesting = 0; 451 return *yytext; 452 } 453<VERS_SCRIPT>"}" { return *yytext; } 454<VERS_NODE>"{" { vers_node_nesting++; return *yytext; } 455<VERS_NODE>"}" { if (--vers_node_nesting < 0) 456 BEGIN(VERS_SCRIPT); 457 return *yytext; 458 } 459 460<VERS_START,VERS_NODE,VERS_SCRIPT,INPUTLIST>[\n] { lineno++; } 461 462<VERS_START,VERS_NODE,VERS_SCRIPT>#.* { /* Eat up comments */ } 463 464<VERS_START,VERS_NODE,VERS_SCRIPT,INPUTLIST>[ \t\r]+ { /* Eat up whitespace */ } 465 466<<EOF>> { 467 include_stack_ptr--; 468 if (include_stack_ptr == 0) 469 { 470 lineno = 0; 471 yyterminate (); 472 } 473 else 474 yy_switch_to_buffer (include_stack[include_stack_ptr]); 475 476 lineno = lineno_stack[include_stack_ptr]; 477 input_flags.sysrooted = sysrooted_stack[include_stack_ptr]; 478 479 return END; 480} 481 482<SCRIPT,MRI,VERS_START,VERS_SCRIPT,VERS_NODE>. lex_warn_invalid (" in script", yytext); 483<EXPRESSION,DEFSYMEXP,BOTH>. lex_warn_invalid (" in expression", yytext); 484 485%% 486 487 488/* Switch flex to reading script file NAME, open on FILE, 489 saving the current input info on the include stack. */ 490 491void 492lex_push_file (FILE *file, const char *name, unsigned int sysrooted) 493{ 494 if (include_stack_ptr >= MAX_INCLUDE_DEPTH) 495 { 496 einfo (_("%F:includes nested too deeply\n")); 497 } 498 file_name_stack[include_stack_ptr] = name; 499 lineno_stack[include_stack_ptr] = lineno; 500 sysrooted_stack[include_stack_ptr] = input_flags.sysrooted; 501 include_stack[include_stack_ptr] = YY_CURRENT_BUFFER; 502 503 include_stack_ptr++; 504 lineno = 1; 505 input_flags.sysrooted = sysrooted; 506 yyin = file; 507 yy_switch_to_buffer (yy_create_buffer (yyin, YY_BUF_SIZE)); 508} 509 510/* Return a newly created flex input buffer containing STRING, 511 which is SIZE bytes long. */ 512 513static YY_BUFFER_STATE 514yy_create_string_buffer (const char *string, size_t size) 515{ 516 YY_BUFFER_STATE b; 517 518 b = xmalloc (sizeof (struct yy_buffer_state)); 519 b->yy_input_file = 0; 520 b->yy_buf_size = size; 521 522 /* yy_ch_buf has to be 2 characters longer than the size given because 523 we need to put in 2 end-of-buffer characters. */ 524 b->yy_ch_buf = xmalloc ((size_t) b->yy_buf_size + 3); 525 526 b->yy_ch_buf[0] = '\n'; 527 strcpy (b->yy_ch_buf+1, string); 528 b->yy_ch_buf[size+1] = YY_END_OF_BUFFER_CHAR; 529 b->yy_ch_buf[size+2] = YY_END_OF_BUFFER_CHAR; 530 b->yy_n_chars = size+1; 531 b->yy_buf_pos = &b->yy_ch_buf[1]; 532 533 b->yy_is_our_buffer = 1; 534 b->yy_is_interactive = 0; 535 b->yy_at_bol = 1; 536 b->yy_fill_buffer = 0; 537 538 /* flex 2.4.7 changed the interface. FIXME: We should not be using 539 a flex internal interface in the first place! */ 540#ifdef YY_BUFFER_NEW 541 b->yy_buffer_status = YY_BUFFER_NEW; 542#else 543 b->yy_eof_status = EOF_NOT_SEEN; 544#endif 545 546 return b; 547} 548 549/* Switch flex to reading from STRING, saving the current input info 550 on the include stack. */ 551 552void 553lex_redirect (const char *string, const char *fake_filename, unsigned int count) 554{ 555 YY_BUFFER_STATE tmp; 556 557 yy_init = 0; 558 if (include_stack_ptr >= MAX_INCLUDE_DEPTH) 559 { 560 einfo (_("%F: macros nested too deeply\n")); 561 } 562 file_name_stack[include_stack_ptr] = fake_filename; 563 lineno_stack[include_stack_ptr] = lineno; 564 include_stack[include_stack_ptr] = YY_CURRENT_BUFFER; 565 include_stack_ptr++; 566 lineno = count; 567 tmp = yy_create_string_buffer (string, strlen (string)); 568 yy_switch_to_buffer (tmp); 569} 570 571/* Functions to switch to a different flex start condition, 572 saving the current start condition on `state_stack'. */ 573 574static int state_stack[MAX_INCLUDE_DEPTH * 2]; 575static int *state_stack_p = state_stack; 576 577void 578ldlex_script (void) 579{ 580 *(state_stack_p)++ = yy_start; 581 BEGIN (SCRIPT); 582} 583 584void 585ldlex_inputlist (void) 586{ 587 *(state_stack_p)++ = yy_start; 588 BEGIN (INPUTLIST); 589} 590 591void 592ldlex_mri_script (void) 593{ 594 *(state_stack_p)++ = yy_start; 595 BEGIN (MRI); 596} 597 598void 599ldlex_version_script (void) 600{ 601 *(state_stack_p)++ = yy_start; 602 BEGIN (VERS_START); 603} 604 605void 606ldlex_version_file (void) 607{ 608 *(state_stack_p)++ = yy_start; 609 BEGIN (VERS_SCRIPT); 610} 611 612void 613ldlex_defsym (void) 614{ 615 *(state_stack_p)++ = yy_start; 616 BEGIN (DEFSYMEXP); 617} 618 619void 620ldlex_expression (void) 621{ 622 *(state_stack_p)++ = yy_start; 623 BEGIN (EXPRESSION); 624} 625 626void 627ldlex_both (void) 628{ 629 *(state_stack_p)++ = yy_start; 630 BEGIN (BOTH); 631} 632 633void 634ldlex_popstate (void) 635{ 636 yy_start = *(--state_stack_p); 637} 638 639/* Return the current file name, or the previous file if no file is 640 current. */ 641 642const char* 643ldlex_filename (void) 644{ 645 return file_name_stack[include_stack_ptr - (include_stack_ptr != 0)]; 646} 647 648 649/* Place up to MAX_SIZE characters in BUF and return 650 either the number of characters read, or 0 to indicate EOF. */ 651 652static int 653yy_input (char *buf, int max_size) 654{ 655 int result = 0; 656 if (YY_CURRENT_BUFFER->yy_input_file) 657 { 658 if (yyin) 659 { 660 result = fread (buf, 1, max_size, yyin); 661 if (result < max_size && ferror (yyin)) 662 einfo (_("%F%P: read in flex scanner failed\n")); 663 } 664 } 665 return result; 666} 667 668/* Eat the rest of a C-style comment. */ 669 670static void 671comment (void) 672{ 673 int c; 674 675 while (1) 676 { 677 c = input(); 678 while (c != '*' && c != 0) 679 { 680 if (c == '\n') 681 lineno++; 682 c = input(); 683 } 684 685 if (c == '*') 686 { 687 c = input(); 688 while (c == '*') 689 c = input(); 690 if (c == '/') 691 break; /* found the end */ 692 } 693 694 if (c == '\n') 695 lineno++; 696 697 if (c == 0) 698 { 699 einfo (_("%F%P: EOF in comment\n")); 700 break; 701 } 702 } 703} 704 705/* Warn the user about a garbage character WHAT in the input 706 in context WHERE. */ 707 708static void 709lex_warn_invalid (char *where, char *what) 710{ 711 char buf[5]; 712 713 /* If we have found an input file whose format we do not recognize, 714 and we are therefore treating it as a linker script, and we find 715 an invalid character, then most likely this is a real object file 716 of some different format. Treat it as such. */ 717 if (ldfile_assumed_script) 718 { 719 bfd_set_error (bfd_error_file_not_recognized); 720 einfo (_("%F%s: file not recognized: %E\n"), ldlex_filename ()); 721 } 722 723 if (! ISPRINT (*what)) 724 { 725 sprintf (buf, "\\%03o", *(unsigned char *) what); 726 what = buf; 727 } 728 729 einfo (_("%P:%pS: ignoring invalid character `%s'%s\n"), NULL, what, where); 730} 731