1 %option nounput noyywrap
5 /* Copyright (C) 1991-2021 Free Software Foundation, Inc.
6 Written by Steve Chamberlain of Cygnus Support.
8 This file is part of the GNU Binutils.
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.
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.
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. */
26 #include "safe-ctype.h"
37 #include "libiberty.h"
39 /* The type of top-level parser input.
40 yylex and yyparse (indirectly) both check this. */
41 input_type parser_input;
43 /* Line number in the current input file. */
46 /* The string we are currently lexing, or NULL if we are reading a
48 const char *lex_string = NULL;
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
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. */
59 #define YY_INPUT(buf,result,max_size) result = yy_input (buf, max_size)
65 #define MAX_INCLUDE_DEPTH 10
66 static YY_BUFFER_STATE include_stack[MAX_INCLUDE_DEPTH];
67 static const char *file_name_stack[MAX_INCLUDE_DEPTH];
68 static unsigned int lineno_stack[MAX_INCLUDE_DEPTH];
69 static unsigned int sysrooted_stack[MAX_INCLUDE_DEPTH];
70 static unsigned int include_stack_ptr = 0;
71 static int vers_node_nesting = 0;
73 static int yy_input (char *, int);
74 static void comment (void);
75 static void lex_warn_invalid (char *where, char *what);
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
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
87 #define RTOKEN(x) { yylval.token = x; return x; }
94 WILDCHAR [_a-zA-Z0-9\/\.\\\$\~\-\+\:\[\]\,\=\?\*\^\!]
95 FILENAMECHAR [_a-zA-Z0-9\/\.\\\$\~\-\+\:\[\]\,\=]
96 NOCFILENAMECHAR [_a-zA-Z0-9\/\.\\\$\~\-\+\:\[\]]
97 SYMBOLNAMECHAR [_a-zA-Z0-9\/\.\\\$\~]
98 FILENAMECHAR1 [_a-zA-Z\/\.\\\$\~]
99 SYMBOLNAMECHAR1 [_a-zA-Z\.\\\$]
102 V_TAG [.$_a-zA-Z][._a-zA-Z0-9]*
103 V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
115 if (parser_input != input_selected)
117 /* The first token of the input determines the initial parser state. */
118 input_type t = parser_input;
119 parser_input = input_selected;
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;
131 <BOTH,SCRIPT,EXPRESSION,VERS_START,VERS_NODE,VERS_SCRIPT,INPUTLIST>"/*" { comment (); }
134 <MRI,EXPRESSION>"$"([0-9A-Fa-f])+ {
135 yylval.integer = bfd_scan_vma (yytext + 1, 0, 16);
136 yylval.bigint.str = NULL;
140 <MRI,EXPRESSION>([0-9A-Fa-f])+(H|h|X|x|B|b|O|o|D|d) {
142 switch (yytext[yyleng - 1]) {
160 yylval.integer = bfd_scan_vma (yytext, 0,
162 yylval.bigint.str = NULL;
165 <SCRIPT,MRI,BOTH,EXPRESSION>((("$"|0[xX])([0-9A-Fa-f])+)|(([0-9])+))(M|K|m|k)? {
174 yylval.integer = bfd_scan_vma (s, 0, ibase);
175 yylval.bigint.str = NULL;
176 if (yytext[yyleng - 1] == 'M'
177 || yytext[yyleng - 1] == 'm')
179 yylval.integer *= 1024 * 1024;
181 else if (yytext[yyleng - 1] == 'K'
182 || yytext[yyleng - 1]=='k')
184 yylval.integer *= 1024;
186 else if (yytext[0] == '0'
188 || yytext[1] == 'X'))
190 yylval.bigint.str = xstrdup (yytext + 2);
194 <BOTH,SCRIPT,EXPRESSION,MRI>"]" { RTOKEN(']');}
195 <BOTH,SCRIPT,EXPRESSION,MRI>"[" { RTOKEN('[');}
196 <BOTH,SCRIPT,EXPRESSION,MRI>"<<=" { RTOKEN(LSHIFTEQ);}
197 <BOTH,SCRIPT,EXPRESSION,MRI>">>=" { RTOKEN(RSHIFTEQ);}
198 <BOTH,SCRIPT,EXPRESSION,MRI>"||" { RTOKEN(OROR);}
199 <BOTH,SCRIPT,EXPRESSION,MRI>"==" { RTOKEN(EQ);}
200 <BOTH,SCRIPT,EXPRESSION,MRI>"!=" { RTOKEN(NE);}
201 <BOTH,SCRIPT,EXPRESSION,MRI>">=" { RTOKEN(GE);}
202 <BOTH,SCRIPT,EXPRESSION,MRI>"<=" { RTOKEN(LE);}
203 <BOTH,SCRIPT,EXPRESSION,MRI>"<<" { RTOKEN(LSHIFT);}
204 <BOTH,SCRIPT,EXPRESSION,MRI>">>" { RTOKEN(RSHIFT);}
205 <BOTH,SCRIPT,EXPRESSION,MRI>"+=" { RTOKEN(PLUSEQ);}
206 <BOTH,SCRIPT,EXPRESSION,MRI>"-=" { RTOKEN(MINUSEQ);}
207 <BOTH,SCRIPT,EXPRESSION,MRI>"*=" { RTOKEN(MULTEQ);}
208 <BOTH,SCRIPT,EXPRESSION,MRI>"/=" { RTOKEN(DIVEQ);}
209 <BOTH,SCRIPT,EXPRESSION,MRI>"&=" { RTOKEN(ANDEQ);}
210 <BOTH,SCRIPT,EXPRESSION,MRI>"|=" { RTOKEN(OREQ);}
211 <BOTH,SCRIPT,EXPRESSION,MRI>"&&" { RTOKEN(ANDAND);}
212 <BOTH,SCRIPT,EXPRESSION,MRI>">" { RTOKEN('>');}
213 <BOTH,SCRIPT,EXPRESSION,MRI,INPUTLIST>"," { RTOKEN(',');}
214 <BOTH,SCRIPT,EXPRESSION,MRI>"&" { RTOKEN('&');}
215 <BOTH,SCRIPT,EXPRESSION,MRI>"|" { RTOKEN('|');}
216 <BOTH,SCRIPT,EXPRESSION,MRI>"~" { RTOKEN('~');}
217 <BOTH,SCRIPT,EXPRESSION,MRI>"!" { RTOKEN('!');}
218 <BOTH,SCRIPT,EXPRESSION,MRI>"?" { RTOKEN('?');}
219 <BOTH,SCRIPT,EXPRESSION,MRI>"*" { 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,INPUTLIST>")" { RTOKEN(')');}
229 <BOTH,SCRIPT,EXPRESSION,MRI,INPUTLIST>"(" { RTOKEN('(');}
230 <BOTH,SCRIPT,EXPRESSION,MRI>":" { RTOKEN(':'); }
231 <BOTH,SCRIPT,EXPRESSION,MRI>";" { RTOKEN(';');}
232 <BOTH,SCRIPT>"MEMORY" { RTOKEN(MEMORY);}
233 <BOTH,SCRIPT>"REGION_ALIAS" { RTOKEN(REGION_ALIAS);}
234 <BOTH,SCRIPT>"LD_FEATURE" { RTOKEN(LD_FEATURE);}
235 <BOTH,SCRIPT,EXPRESSION>"ORIGIN" { RTOKEN(ORIGIN);}
236 <BOTH,SCRIPT>"VERSION" { RTOKEN(VERSIONK);}
237 <EXPRESSION,BOTH,SCRIPT>"BLOCK" { RTOKEN(BLOCK);}
238 <EXPRESSION,BOTH,SCRIPT>"BIND" { RTOKEN(BIND);}
239 <BOTH,SCRIPT,EXPRESSION>"LENGTH" { RTOKEN(LENGTH);}
240 <EXPRESSION,BOTH,SCRIPT>"ALIGN" { RTOKEN(ALIGN_K);}
241 <EXPRESSION,BOTH,SCRIPT>"DATA_SEGMENT_ALIGN" { RTOKEN(DATA_SEGMENT_ALIGN);}
242 <EXPRESSION,BOTH,SCRIPT>"DATA_SEGMENT_RELRO_END" { RTOKEN(DATA_SEGMENT_RELRO_END);}
243 <EXPRESSION,BOTH,SCRIPT>"DATA_SEGMENT_END" { RTOKEN(DATA_SEGMENT_END);}
244 <EXPRESSION,BOTH,SCRIPT>"ADDR" { RTOKEN(ADDR);}
245 <EXPRESSION,BOTH,SCRIPT>"LOADADDR" { RTOKEN(LOADADDR);}
246 <EXPRESSION,BOTH,SCRIPT>"ALIGNOF" { RTOKEN(ALIGNOF); }
247 <EXPRESSION,BOTH>"MAX" { RTOKEN(MAX_K); }
248 <EXPRESSION,BOTH>"MIN" { RTOKEN(MIN_K); }
249 <EXPRESSION,BOTH>"LOG2CEIL" { RTOKEN(LOG2CEIL); }
250 <EXPRESSION,BOTH,SCRIPT>"ASSERT" { RTOKEN(ASSERT_K); }
251 <BOTH,SCRIPT>"ENTRY" { RTOKEN(ENTRY);}
252 <BOTH,SCRIPT,MRI>"EXTERN" { RTOKEN(EXTERN);}
253 <EXPRESSION,BOTH,SCRIPT>"NEXT" { RTOKEN(NEXT);}
254 <EXPRESSION,BOTH,SCRIPT>"sizeof_headers" { RTOKEN(SIZEOF_HEADERS);}
255 <EXPRESSION,BOTH,SCRIPT>"SIZEOF_HEADERS" { RTOKEN(SIZEOF_HEADERS);}
256 <EXPRESSION,BOTH,SCRIPT>"SEGMENT_START" { RTOKEN(SEGMENT_START);}
257 <BOTH,SCRIPT>"MAP" { RTOKEN(MAP);}
258 <EXPRESSION,BOTH,SCRIPT>"SIZEOF" { RTOKEN(SIZEOF);}
259 <BOTH,SCRIPT>"TARGET" { RTOKEN(TARGET_K);}
260 <BOTH,SCRIPT>"SEARCH_DIR" { RTOKEN(SEARCH_DIR);}
261 <BOTH,SCRIPT>"OUTPUT" { RTOKEN(OUTPUT);}
262 <BOTH,SCRIPT>"INPUT" { RTOKEN(INPUT);}
263 <EXPRESSION,BOTH,SCRIPT>"GROUP" { RTOKEN(GROUP);}
264 <EXPRESSION,BOTH,SCRIPT,INPUTLIST>"AS_NEEDED" { RTOKEN(AS_NEEDED);}
265 <EXPRESSION,BOTH,SCRIPT>"DEFINED" { RTOKEN(DEFINED);}
266 <BOTH,SCRIPT>"CREATE_OBJECT_SYMBOLS" { RTOKEN(CREATE_OBJECT_SYMBOLS);}
267 <BOTH,SCRIPT>"CONSTRUCTORS" { RTOKEN( CONSTRUCTORS);}
268 <BOTH,SCRIPT>"FORCE_COMMON_ALLOCATION" { RTOKEN(FORCE_COMMON_ALLOCATION);}
269 <BOTH,SCRIPT>"FORCE_GROUP_ALLOCATION" { RTOKEN(FORCE_GROUP_ALLOCATION);}
270 <BOTH,SCRIPT>"INHIBIT_COMMON_ALLOCATION" { RTOKEN(INHIBIT_COMMON_ALLOCATION);}
271 <BOTH,SCRIPT>"SECTIONS" { RTOKEN(SECTIONS);}
272 <BOTH,SCRIPT>"INSERT" { RTOKEN(INSERT_K);}
273 <BOTH,SCRIPT>"AFTER" { RTOKEN(AFTER);}
274 <BOTH,SCRIPT>"BEFORE" { RTOKEN(BEFORE);}
275 <BOTH,SCRIPT>"FILL" { RTOKEN(FILL);}
276 <BOTH,SCRIPT>"STARTUP" { RTOKEN(STARTUP);}
277 <BOTH,SCRIPT>"OUTPUT_FORMAT" { RTOKEN(OUTPUT_FORMAT);}
278 <BOTH,SCRIPT>"OUTPUT_ARCH" { RTOKEN( OUTPUT_ARCH);}
279 <BOTH,SCRIPT>"HLL" { RTOKEN(HLL);}
280 <BOTH,SCRIPT>"SYSLIB" { RTOKEN(SYSLIB);}
281 <BOTH,SCRIPT>"FLOAT" { RTOKEN(FLOAT);}
282 <BOTH,SCRIPT>"QUAD" { RTOKEN( QUAD);}
283 <BOTH,SCRIPT>"SQUAD" { RTOKEN( SQUAD);}
284 <BOTH,SCRIPT>"LONG" { RTOKEN( LONG);}
285 <BOTH,SCRIPT>"SHORT" { RTOKEN( SHORT);}
286 <BOTH,SCRIPT>"BYTE" { RTOKEN( BYTE);}
287 <BOTH,SCRIPT>"NOFLOAT" { RTOKEN(NOFLOAT);}
288 <EXPRESSION,BOTH,SCRIPT>"NOCROSSREFS" { RTOKEN(NOCROSSREFS);}
289 <EXPRESSION,BOTH,SCRIPT>"NOCROSSREFS_TO" { RTOKEN(NOCROSSREFS_TO);}
290 <BOTH,SCRIPT>"OVERLAY" { RTOKEN(OVERLAY); }
291 <BOTH,SCRIPT>"SORT_BY_NAME" { RTOKEN(SORT_BY_NAME); }
292 <BOTH,SCRIPT>"SORT_BY_ALIGNMENT" { RTOKEN(SORT_BY_ALIGNMENT); }
293 <BOTH,SCRIPT>"SORT" { RTOKEN(SORT_BY_NAME); }
294 <BOTH,SCRIPT>"SORT_BY_INIT_PRIORITY" { RTOKEN(SORT_BY_INIT_PRIORITY); }
295 <BOTH,SCRIPT>"SORT_NONE" { RTOKEN(SORT_NONE); }
296 <EXPRESSION,BOTH,SCRIPT>"NOLOAD" { RTOKEN(NOLOAD);}
297 <EXPRESSION,BOTH,SCRIPT>"DSECT" { RTOKEN(DSECT);}
298 <EXPRESSION,BOTH,SCRIPT>"COPY" { RTOKEN(COPY);}
299 <EXPRESSION,BOTH,SCRIPT>"INFO" { RTOKEN(INFO);}
300 <EXPRESSION,BOTH,SCRIPT>"OVERLAY" { RTOKEN(OVERLAY);}
301 <EXPRESSION,BOTH,SCRIPT>"ONLY_IF_RO" { RTOKEN(ONLY_IF_RO); }
302 <EXPRESSION,BOTH,SCRIPT>"ONLY_IF_RW" { RTOKEN(ONLY_IF_RW); }
303 <EXPRESSION,BOTH,SCRIPT>"SPECIAL" { RTOKEN(SPECIAL); }
304 <BOTH,SCRIPT>"o" { RTOKEN(ORIGIN);}
305 <BOTH,SCRIPT>"org" { RTOKEN(ORIGIN);}
306 <BOTH,SCRIPT>"l" { RTOKEN( LENGTH);}
307 <BOTH,SCRIPT>"len" { RTOKEN( LENGTH);}
308 <EXPRESSION,BOTH,SCRIPT>"INPUT_SECTION_FLAGS" { RTOKEN(INPUT_SECTION_FLAGS); }
309 <EXPRESSION,BOTH,SCRIPT>"INCLUDE" { RTOKEN(INCLUDE);}
310 <BOTH,SCRIPT>"PHDRS" { RTOKEN (PHDRS); }
311 <EXPRESSION,BOTH,SCRIPT>"AT" { RTOKEN(AT);}
312 <EXPRESSION,BOTH,SCRIPT>"ALIGN_WITH_INPUT" { RTOKEN(ALIGN_WITH_INPUT);}
313 <EXPRESSION,BOTH,SCRIPT>"SUBALIGN" { RTOKEN(SUBALIGN);}
314 <EXPRESSION,BOTH,SCRIPT>"HIDDEN" { RTOKEN(HIDDEN); }
315 <EXPRESSION,BOTH,SCRIPT>"PROVIDE" { RTOKEN(PROVIDE); }
316 <EXPRESSION,BOTH,SCRIPT>"PROVIDE_HIDDEN" { RTOKEN(PROVIDE_HIDDEN); }
317 <EXPRESSION,BOTH,SCRIPT>"KEEP" { RTOKEN(KEEP); }
318 <EXPRESSION,BOTH,SCRIPT>"EXCLUDE_FILE" { RTOKEN(EXCLUDE_FILE); }
319 <EXPRESSION,BOTH,SCRIPT>"CONSTANT" { RTOKEN(CONSTANT);}
320 <MRI>"#".*\n? { ++ lineno; }
321 <MRI>"\n" { ++ lineno; RTOKEN(NEWLINE); }
322 <MRI>"*".* { /* Mri comment line */ }
323 <MRI>";".* { /* Mri comment line */ }
324 <MRI>"END" { RTOKEN(ENDWORD); }
325 <MRI>"ALIGNMOD" { RTOKEN(ALIGNMOD);}
326 <MRI>"ALIGN" { RTOKEN(ALIGN_K);}
327 <MRI>"CHIP" { RTOKEN(CHIP); }
328 <MRI>"BASE" { RTOKEN(BASE); }
329 <MRI>"ALIAS" { RTOKEN(ALIAS); }
330 <MRI>"TRUNCATE" { RTOKEN(TRUNCATE); }
331 <MRI>"LOAD" { RTOKEN(LOAD); }
332 <MRI>"PUBLIC" { RTOKEN(PUBLIC); }
333 <MRI>"ORDER" { RTOKEN(ORDER); }
334 <MRI>"NAME" { RTOKEN(NAMEWORD); }
335 <MRI>"FORMAT" { RTOKEN(FORMAT); }
336 <MRI>"CASE" { RTOKEN(CASE); }
337 <MRI>"START" { RTOKEN(START); }
338 <MRI>"LIST".* { RTOKEN(LIST); /* LIST and ignore to end of line */ }
339 <MRI>"SECT" { RTOKEN(SECT); }
340 <EXPRESSION,BOTH,SCRIPT,MRI>"ABSOLUTE" { RTOKEN(ABSOLUTE); }
341 <MRI>"end" { RTOKEN(ENDWORD); }
342 <MRI>"alignmod" { RTOKEN(ALIGNMOD);}
343 <MRI>"align" { RTOKEN(ALIGN_K);}
344 <MRI>"chip" { RTOKEN(CHIP); }
345 <MRI>"base" { RTOKEN(BASE); }
346 <MRI>"alias" { RTOKEN(ALIAS); }
347 <MRI>"truncate" { RTOKEN(TRUNCATE); }
348 <MRI>"load" { RTOKEN(LOAD); }
349 <MRI>"public" { RTOKEN(PUBLIC); }
350 <MRI>"order" { RTOKEN(ORDER); }
351 <MRI>"name" { RTOKEN(NAMEWORD); }
352 <MRI>"format" { RTOKEN(FORMAT); }
353 <MRI>"case" { RTOKEN(CASE); }
354 <MRI>"extern" { RTOKEN(EXTERN); }
355 <MRI>"start" { RTOKEN(START); }
356 <MRI>"list".* { RTOKEN(LIST); /* LIST and ignore to end of line */ }
357 <MRI>"sect" { RTOKEN(SECT); }
358 <EXPRESSION,BOTH,SCRIPT,MRI>"absolute" { RTOKEN(ABSOLUTE); }
360 <MRI>{FILENAMECHAR1}{NOCFILENAMECHAR}* {
361 /* Filename without commas, needed to parse mri stuff */
362 yylval.name = xstrdup (yytext);
367 <BOTH,INPUTLIST>{FILENAMECHAR1}{FILENAMECHAR}* {
368 yylval.name = xstrdup (yytext);
371 <INPUTLIST>"="{FILENAMECHAR1}{FILENAMECHAR}* {
372 /* Filename to be prefixed by --sysroot or when non-sysrooted, nothing. */
373 yylval.name = xstrdup (yytext);
376 <BOTH,INPUTLIST>"-l"{FILENAMECHAR}+ {
377 yylval.name = xstrdup (yytext + 2);
380 <EXPRESSION>{SYMBOLNAMECHAR1}{SYMBOLNAMECHAR}* {
381 yylval.name = xstrdup (yytext);
384 <EXPRESSION>"/DISCARD/" {
385 yylval.name = xstrdup (yytext);
388 <EXPRESSION>"-l"{NOCFILENAMECHAR}+ {
389 yylval.name = xstrdup (yytext + 2);
392 <SCRIPT>{WILDCHAR}* {
393 /* Annoyingly, this pattern can match comments, and we have
394 longest match issues to consider. So if the first two
395 characters are a comment opening, put the input back and
397 if (yytext[0] == '/' && yytext[1] == '*')
404 yylval.name = xstrdup (yytext);
409 <EXPRESSION,BOTH,SCRIPT,VERS_NODE,INPUTLIST>"\""[^\"]*"\"" {
410 /* No matter the state, quotes
411 give what's inside. */
413 yylval.name = xstrdup (yytext + 1);
414 /* PR ld/20906. A corrupt input file
415 can contain bogus strings. */
416 len = strlen (yylval.name);
417 if (len > (bfd_size_type) yyleng - 2)
419 yylval.name[len] = 0;
422 <BOTH,SCRIPT,EXPRESSION>"\n" { lineno++;}
423 <MRI,BOTH,SCRIPT,EXPRESSION>[ \t\r]+ { }
425 <VERS_NODE,VERS_SCRIPT>[:,;] { return *yytext; }
427 <VERS_NODE>global { RTOKEN(GLOBAL); }
429 <VERS_NODE>local { RTOKEN(LOCAL); }
431 <VERS_NODE>extern { RTOKEN(EXTERN); }
433 <VERS_NODE>{V_IDENTIFIER} { yylval.name = xstrdup (yytext);
434 return VERS_IDENTIFIER; }
436 <VERS_SCRIPT>{V_TAG} { yylval.name = xstrdup (yytext);
439 <VERS_START>"{" { BEGIN(VERS_SCRIPT); return *yytext; }
441 <VERS_SCRIPT>"{" { BEGIN(VERS_NODE);
442 vers_node_nesting = 0;
445 <VERS_SCRIPT>"}" { return *yytext; }
446 <VERS_NODE>"{" { vers_node_nesting++; return *yytext; }
447 <VERS_NODE>"}" { if (--vers_node_nesting < 0)
452 <VERS_START,VERS_NODE,VERS_SCRIPT,INPUTLIST>[\n] { lineno++; }
454 <VERS_START,VERS_NODE,VERS_SCRIPT>#.* { /* Eat up comments */ }
456 <VERS_START,VERS_NODE,VERS_SCRIPT,INPUTLIST>[ \t\r]+ { /* Eat up whitespace */ }
460 if (include_stack_ptr == 0)
466 yy_switch_to_buffer (include_stack[include_stack_ptr]);
468 lineno = lineno_stack[include_stack_ptr];
469 input_flags.sysrooted = sysrooted_stack[include_stack_ptr];
474 <SCRIPT,MRI,VERS_START,VERS_SCRIPT,VERS_NODE>. lex_warn_invalid (" in script", yytext);
475 <EXPRESSION,BOTH>. lex_warn_invalid (" in expression", yytext);
480 /* Switch flex to reading script file NAME, open on FILE,
481 saving the current input info on the include stack. */
484 lex_push_file (FILE *file, const char *name, unsigned int sysrooted)
486 if (include_stack_ptr >= MAX_INCLUDE_DEPTH)
488 einfo (_("%F:includes nested too deeply\n"));
490 file_name_stack[include_stack_ptr] = name;
491 lineno_stack[include_stack_ptr] = lineno;
492 sysrooted_stack[include_stack_ptr] = input_flags.sysrooted;
493 include_stack[include_stack_ptr] = YY_CURRENT_BUFFER;
497 input_flags.sysrooted = sysrooted;
499 yy_switch_to_buffer (yy_create_buffer (yyin, YY_BUF_SIZE));
502 /* Return a newly created flex input buffer containing STRING,
503 which is SIZE bytes long. */
505 static YY_BUFFER_STATE
506 yy_create_string_buffer (const char *string, size_t size)
510 b = xmalloc (sizeof (struct yy_buffer_state));
511 b->yy_input_file = 0;
512 b->yy_buf_size = size;
514 /* yy_ch_buf has to be 2 characters longer than the size given because
515 we need to put in 2 end-of-buffer characters. */
516 b->yy_ch_buf = xmalloc ((size_t) b->yy_buf_size + 3);
518 b->yy_ch_buf[0] = '\n';
519 strcpy (b->yy_ch_buf+1, string);
520 b->yy_ch_buf[size+1] = YY_END_OF_BUFFER_CHAR;
521 b->yy_ch_buf[size+2] = YY_END_OF_BUFFER_CHAR;
522 b->yy_n_chars = size+1;
523 b->yy_buf_pos = &b->yy_ch_buf[1];
525 b->yy_is_our_buffer = 1;
526 b->yy_is_interactive = 0;
528 b->yy_fill_buffer = 0;
530 /* flex 2.4.7 changed the interface. FIXME: We should not be using
531 a flex internal interface in the first place! */
533 b->yy_buffer_status = YY_BUFFER_NEW;
535 b->yy_eof_status = EOF_NOT_SEEN;
541 /* Switch flex to reading from STRING, saving the current input info
542 on the include stack. */
545 lex_redirect (const char *string, const char *fake_filename, unsigned int count)
550 if (include_stack_ptr >= MAX_INCLUDE_DEPTH)
552 einfo (_("%F: macros nested too deeply\n"));
554 file_name_stack[include_stack_ptr] = fake_filename;
555 lineno_stack[include_stack_ptr] = lineno;
556 include_stack[include_stack_ptr] = YY_CURRENT_BUFFER;
559 tmp = yy_create_string_buffer (string, strlen (string));
560 yy_switch_to_buffer (tmp);
563 /* Functions to switch to a different flex start condition,
564 saving the current start condition on `state_stack'. */
566 static int state_stack[MAX_INCLUDE_DEPTH * 2];
567 static int *state_stack_p = state_stack;
572 *(state_stack_p)++ = yy_start;
577 ldlex_inputlist (void)
579 *(state_stack_p)++ = yy_start;
584 ldlex_mri_script (void)
586 *(state_stack_p)++ = yy_start;
591 ldlex_version_script (void)
593 *(state_stack_p)++ = yy_start;
598 ldlex_version_file (void)
600 *(state_stack_p)++ = yy_start;
605 ldlex_expression (void)
607 *(state_stack_p)++ = yy_start;
614 *(state_stack_p)++ = yy_start;
619 ldlex_popstate (void)
621 yy_start = *(--state_stack_p);
624 /* In cases where the parser needs to look ahead and the context
625 changes from expression to script or vice-versa, throw away a
626 NAME. What constitutes a NAME depends on context. */
634 /* Return the current file name, or the previous file if no file is
638 ldlex_filename (void)
640 return file_name_stack[include_stack_ptr - (include_stack_ptr != 0)];
644 /* Place up to MAX_SIZE characters in BUF and return
645 either the number of characters read, or 0 to indicate EOF. */
648 yy_input (char *buf, int max_size)
651 if (YY_CURRENT_BUFFER->yy_input_file)
655 result = fread (buf, 1, max_size, yyin);
656 if (result < max_size && ferror (yyin))
657 einfo (_("%F%P: read in flex scanner failed\n"));
663 /* Eat the rest of a C-style comment. */
673 while (c != '*' && c != 0)
686 break; /* found the end */
694 einfo (_("%F%P: EOF in comment\n"));
700 /* Warn the user about a garbage character WHAT in the input
704 lex_warn_invalid (char *where, char *what)
708 /* If we have found an input file whose format we do not recognize,
709 and we are therefore treating it as a linker script, and we find
710 an invalid character, then most likely this is a real object file
711 of some different format. Treat it as such. */
712 if (ldfile_assumed_script)
714 bfd_set_error (bfd_error_file_not_recognized);
715 einfo (_("%F%s: file not recognized: %E\n"), ldlex_filename ());
718 if (! ISPRINT (*what))
720 sprintf (buf, "\\%03o", *(unsigned char *) what);
724 einfo (_("%P:%pS: ignoring invalid character `%s'%s\n"), NULL, what, where);