1 %option nounput
2
3 %{
4
5 /* Copyright (C) 1991-2016 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. */
40 input_type parser_input;
41
42 /* Line number in the current input file.
43 (FIXME Actually, it doesn't appear to get reset for each file?) */
44 unsigned int lineno = 1;
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 #ifndef YY_NO_UNPUT
62 #define YY_NO_UNPUT
63 #endif
64
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;
72
73 static int yy_input (char *, int);
74 static void comment (void);
75 static 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 /* Some versions of flex want this. */
91 #ifndef yywrap
yywrap(void)92 int yywrap (void) { return 1; }
93 #endif
94 %}
95
96 %a 4000
97 %o 5000
98
99 CMDFILENAMECHAR [_a-zA-Z0-9\/\.\\_\+\$\:\[\]\\\,\=\&\!\<\>\-\~]
100 CMDFILENAMECHAR1 [_a-zA-Z0-9\/\.\\_\+\$\:\[\]\\\,\=\&\!\<\>\~]
101 FILENAMECHAR1 [_a-zA-Z\/\.\\\$\_\~]
102 SYMBOLCHARN [_a-zA-Z\/\.\\\$\_\~0-9]
103 FILENAMECHAR [_a-zA-Z0-9\/\.\-\_\+\=\$\:\[\]\\\,\~]
104 WILDCHAR [_a-zA-Z0-9\/\.\-\_\+\=\$\:\[\]\\\,\~\?\*\^\!]
105 WHITE [ \t\n\r]+
106
107 NOCFILENAMECHAR [_a-zA-Z0-9\/\.\-\_\+\$\:\[\]\\\~]
108
109 V_TAG [.$_a-zA-Z][._a-zA-Z0-9]*
110 V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
111
112 %s SCRIPT
113 %s INPUTLIST
114 %s EXPRESSION
115 %s BOTH
116 %s DEFSYMEXP
117 %s MRI
118 %s VERS_START
119 %s VERS_SCRIPT
120 %s VERS_NODE
121 %%
122
123 if (parser_input != input_selected)
124 {
125 /* The first token of the input determines the initial parser state. */
126 input_type t = parser_input;
127 parser_input = input_selected;
128 switch (t)
129 {
130 case input_script: return INPUT_SCRIPT; break;
131 case input_mri_script: return INPUT_MRI_SCRIPT; break;
132 case input_version_script: return INPUT_VERSION_SCRIPT; break;
133 case input_dynamic_list: return INPUT_DYNAMIC_LIST; break;
134 case input_defsym: return INPUT_DEFSYM; break;
135 default: abort ();
136 }
137 }
138
139 <BOTH,SCRIPT,EXPRESSION,VERS_START,VERS_NODE,VERS_SCRIPT,INPUTLIST>"/*" { comment (); }
140
141
142 <DEFSYMEXP>"-" { RTOKEN('-');}
143 <DEFSYMEXP>"+" { RTOKEN('+');}
144 <DEFSYMEXP>{FILENAMECHAR1}{SYMBOLCHARN}* { yylval.name = xstrdup (yytext); return NAME; }
145 <DEFSYMEXP>"=" { RTOKEN('='); }
146
147 <MRI,EXPRESSION>"$"([0-9A-Fa-f])+ {
148 yylval.integer = bfd_scan_vma (yytext + 1, 0, 16);
149 yylval.bigint.str = NULL;
150 return INT;
151 }
152
153 <MRI,EXPRESSION>([0-9A-Fa-f])+(H|h|X|x|B|b|O|o|D|d) {
154 int ibase ;
155 switch (yytext[yyleng - 1]) {
156 case 'X':
157 case 'x':
158 case 'H':
159 case 'h':
160 ibase = 16;
161 break;
162 case 'O':
163 case 'o':
164 ibase = 8;
165 break;
166 case 'B':
167 case 'b':
168 ibase = 2;
169 break;
170 default:
171 ibase = 10;
172 }
173 yylval.integer = bfd_scan_vma (yytext, 0,
174 ibase);
175 yylval.bigint.str = NULL;
176 return INT;
177 }
178 <SCRIPT,DEFSYMEXP,MRI,BOTH,EXPRESSION>((("$"|0[xX])([0-9A-Fa-f])+)|(([0-9])+))(M|K|m|k)? {
179 char *s = yytext;
180 int ibase = 0;
181
182 if (*s == '$')
183 {
184 ++s;
185 ibase = 16;
186 }
187 yylval.integer = bfd_scan_vma (s, 0, ibase);
188 yylval.bigint.str = NULL;
189 if (yytext[yyleng - 1] == 'M'
190 || yytext[yyleng - 1] == 'm')
191 {
192 yylval.integer *= 1024 * 1024;
193 }
194 else if (yytext[yyleng - 1] == 'K'
195 || yytext[yyleng - 1]=='k')
196 {
197 yylval.integer *= 1024;
198 }
199 else if (yytext[0] == '0'
200 && (yytext[1] == 'x'
201 || yytext[1] == 'X'))
202 {
203 yylval.bigint.str = xstrdup (yytext + 2);
204 }
205 return INT;
206 }
207 <BOTH,SCRIPT,EXPRESSION,MRI>"]" { RTOKEN(']');}
208 <BOTH,SCRIPT,EXPRESSION,MRI>"[" { RTOKEN('[');}
209 <BOTH,SCRIPT,EXPRESSION,MRI>"<<=" { RTOKEN(LSHIFTEQ);}
210 <BOTH,SCRIPT,EXPRESSION,MRI>">>=" { RTOKEN(RSHIFTEQ);}
211 <BOTH,SCRIPT,EXPRESSION,MRI>"||" { RTOKEN(OROR);}
212 <BOTH,SCRIPT,EXPRESSION,MRI>"==" { RTOKEN(EQ);}
213 <BOTH,SCRIPT,EXPRESSION,MRI>"!=" { RTOKEN(NE);}
214 <BOTH,SCRIPT,EXPRESSION,MRI>">=" { RTOKEN(GE);}
215 <BOTH,SCRIPT,EXPRESSION,MRI>"<=" { RTOKEN(LE);}
216 <BOTH,SCRIPT,EXPRESSION,MRI>"<<" { RTOKEN(LSHIFT);}
217 <BOTH,SCRIPT,EXPRESSION,MRI>">>" { RTOKEN(RSHIFT);}
218 <BOTH,SCRIPT,EXPRESSION,MRI>"+=" { RTOKEN(PLUSEQ);}
219 <BOTH,SCRIPT,EXPRESSION,MRI>"-=" { RTOKEN(MINUSEQ);}
220 <BOTH,SCRIPT,EXPRESSION,MRI>"*=" { RTOKEN(MULTEQ);}
221 <BOTH,SCRIPT,EXPRESSION,MRI>"/=" { RTOKEN(DIVEQ);}
222 <BOTH,SCRIPT,EXPRESSION,MRI>"&=" { RTOKEN(ANDEQ);}
223 <BOTH,SCRIPT,EXPRESSION,MRI>"|=" { RTOKEN(OREQ);}
224 <BOTH,SCRIPT,EXPRESSION,MRI>"&&" { RTOKEN(ANDAND);}
225 <BOTH,SCRIPT,EXPRESSION,MRI>">" { RTOKEN('>');}
226 <BOTH,SCRIPT,EXPRESSION,MRI,INPUTLIST>"," { 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>"<" { RTOKEN('<');}
238 <BOTH,SCRIPT,EXPRESSION,MRI>"=" { RTOKEN('=');}
239 <BOTH,SCRIPT,EXPRESSION,MRI>"}" { RTOKEN('}') ; }
240 <BOTH,SCRIPT,EXPRESSION,MRI>"{" { RTOKEN('{'); }
241 <BOTH,SCRIPT,EXPRESSION,MRI,INPUTLIST>")" { RTOKEN(')');}
242 <BOTH,SCRIPT,EXPRESSION,MRI,INPUTLIST>"(" { RTOKEN('(');}
243 <BOTH,SCRIPT,EXPRESSION,MRI>":" { RTOKEN(':'); }
244 <BOTH,SCRIPT,EXPRESSION,MRI>";" { RTOKEN(';');}
245 <BOTH,SCRIPT>"MEMORY" { RTOKEN(MEMORY);}
246 <BOTH,SCRIPT>"REGION_ALIAS" { RTOKEN(REGION_ALIAS);}
247 <BOTH,SCRIPT>"LD_FEATURE" { RTOKEN(LD_FEATURE);}
248 <BOTH,SCRIPT,EXPRESSION>"ORIGIN" { RTOKEN(ORIGIN);}
249 <BOTH,SCRIPT>"VERSION" { RTOKEN(VERSIONK);}
250 <EXPRESSION,BOTH,SCRIPT>"BLOCK" { RTOKEN(BLOCK);}
251 <EXPRESSION,BOTH,SCRIPT>"BIND" { RTOKEN(BIND);}
252 <BOTH,SCRIPT,EXPRESSION>"LENGTH" { RTOKEN(LENGTH);}
253 <EXPRESSION,BOTH,SCRIPT>"ALIGN" { RTOKEN(ALIGN_K);}
254 <EXPRESSION,BOTH,SCRIPT>"DATA_SEGMENT_ALIGN" { RTOKEN(DATA_SEGMENT_ALIGN);}
255 <EXPRESSION,BOTH,SCRIPT>"DATA_SEGMENT_RELRO_END" { RTOKEN(DATA_SEGMENT_RELRO_END);}
256 <EXPRESSION,BOTH,SCRIPT>"DATA_SEGMENT_END" { RTOKEN(DATA_SEGMENT_END);}
257 <EXPRESSION,BOTH,SCRIPT>"ADDR" { RTOKEN(ADDR);}
258 <EXPRESSION,BOTH,SCRIPT>"LOADADDR" { RTOKEN(LOADADDR);}
259 <EXPRESSION,BOTH,SCRIPT>"ALIGNOF" { RTOKEN(ALIGNOF); }
260 <EXPRESSION,BOTH>"MAX" { RTOKEN(MAX_K); }
261 <EXPRESSION,BOTH>"MIN" { RTOKEN(MIN_K); }
262 <EXPRESSION,BOTH>"LOG2CEIL" { RTOKEN(LOG2CEIL); }
263 <EXPRESSION,BOTH,SCRIPT>"ASSERT" { RTOKEN(ASSERT_K); }
264 <BOTH,SCRIPT>"ENTRY" { RTOKEN(ENTRY);}
265 <BOTH,SCRIPT,MRI>"EXTERN" { RTOKEN(EXTERN);}
266 <EXPRESSION,BOTH,SCRIPT>"NEXT" { RTOKEN(NEXT);}
267 <EXPRESSION,BOTH,SCRIPT>"sizeof_headers" { RTOKEN(SIZEOF_HEADERS);}
268 <EXPRESSION,BOTH,SCRIPT>"SIZEOF_HEADERS" { RTOKEN(SIZEOF_HEADERS);}
269 <EXPRESSION,BOTH,SCRIPT>"SEGMENT_START" { RTOKEN(SEGMENT_START);}
270 <BOTH,SCRIPT>"MAP" { RTOKEN(MAP);}
271 <EXPRESSION,BOTH,SCRIPT>"SIZEOF" { RTOKEN(SIZEOF);}
272 <BOTH,SCRIPT>"TARGET" { RTOKEN(TARGET_K);}
273 <BOTH,SCRIPT>"SEARCH_DIR" { RTOKEN(SEARCH_DIR);}
274 <BOTH,SCRIPT>"OUTPUT" { RTOKEN(OUTPUT);}
275 <BOTH,SCRIPT>"INPUT" { RTOKEN(INPUT);}
276 <EXPRESSION,BOTH,SCRIPT>"GROUP" { RTOKEN(GROUP);}
277 <EXPRESSION,BOTH,SCRIPT,INPUTLIST>"AS_NEEDED" { RTOKEN(AS_NEEDED);}
278 <EXPRESSION,BOTH,SCRIPT>"DEFINED" { RTOKEN(DEFINED);}
279 <BOTH,SCRIPT>"CREATE_OBJECT_SYMBOLS" { RTOKEN(CREATE_OBJECT_SYMBOLS);}
280 <BOTH,SCRIPT>"CONSTRUCTORS" { RTOKEN( CONSTRUCTORS);}
281 <BOTH,SCRIPT>"FORCE_COMMON_ALLOCATION" { RTOKEN(FORCE_COMMON_ALLOCATION);}
282 <BOTH,SCRIPT>"INHIBIT_COMMON_ALLOCATION" { RTOKEN(INHIBIT_COMMON_ALLOCATION);}
283 <BOTH,SCRIPT>"SECTIONS" { RTOKEN(SECTIONS);}
284 <BOTH,SCRIPT>"INSERT" { RTOKEN(INSERT_K);}
285 <BOTH,SCRIPT>"AFTER" { RTOKEN(AFTER);}
286 <BOTH,SCRIPT>"BEFORE" { RTOKEN(BEFORE);}
287 <BOTH,SCRIPT>"FILL" { RTOKEN(FILL);}
288 <BOTH,SCRIPT>"STARTUP" { RTOKEN(STARTUP);}
289 <BOTH,SCRIPT>"OUTPUT_FORMAT" { RTOKEN(OUTPUT_FORMAT);}
290 <BOTH,SCRIPT>"OUTPUT_ARCH" { RTOKEN( OUTPUT_ARCH);}
291 <BOTH,SCRIPT>"HLL" { RTOKEN(HLL);}
292 <BOTH,SCRIPT>"SYSLIB" { RTOKEN(SYSLIB);}
293 <BOTH,SCRIPT>"FLOAT" { RTOKEN(FLOAT);}
294 <BOTH,SCRIPT>"QUAD" { RTOKEN( QUAD);}
295 <BOTH,SCRIPT>"SQUAD" { RTOKEN( SQUAD);}
296 <BOTH,SCRIPT>"LONG" { RTOKEN( LONG);}
297 <BOTH,SCRIPT>"SHORT" { RTOKEN( SHORT);}
298 <BOTH,SCRIPT>"BYTE" { RTOKEN( BYTE);}
299 <BOTH,SCRIPT>"NOFLOAT" { RTOKEN(NOFLOAT);}
300 <EXPRESSION,BOTH,SCRIPT>"NOCROSSREFS" { RTOKEN(NOCROSSREFS);}
301 <EXPRESSION,BOTH,SCRIPT>"NOCROSSREFS_TO" { RTOKEN(NOCROSSREFS_TO);}
302 <BOTH,SCRIPT>"OVERLAY" { RTOKEN(OVERLAY); }
303 <BOTH,SCRIPT>"SORT_BY_NAME" { RTOKEN(SORT_BY_NAME); }
304 <BOTH,SCRIPT>"SORT_BY_ALIGNMENT" { RTOKEN(SORT_BY_ALIGNMENT); }
305 <BOTH,SCRIPT>"SORT" { RTOKEN(SORT_BY_NAME); }
306 <BOTH,SCRIPT>"SORT_BY_INIT_PRIORITY" { RTOKEN(SORT_BY_INIT_PRIORITY); }
307 <BOTH,SCRIPT>"SORT_NONE" { RTOKEN(SORT_NONE); }
308 <EXPRESSION,BOTH,SCRIPT>"NOLOAD" { RTOKEN(NOLOAD);}
309 <EXPRESSION,BOTH,SCRIPT>"DSECT" { RTOKEN(DSECT);}
310 <EXPRESSION,BOTH,SCRIPT>"COPY" { RTOKEN(COPY);}
311 <EXPRESSION,BOTH,SCRIPT>"INFO" { RTOKEN(INFO);}
312 <EXPRESSION,BOTH,SCRIPT>"OVERLAY" { RTOKEN(OVERLAY);}
313 <EXPRESSION,BOTH,SCRIPT>"ONLY_IF_RO" { RTOKEN(ONLY_IF_RO); }
314 <EXPRESSION,BOTH,SCRIPT>"ONLY_IF_RW" { RTOKEN(ONLY_IF_RW); }
315 <EXPRESSION,BOTH,SCRIPT>"SPECIAL" { RTOKEN(SPECIAL); }
316 <BOTH,SCRIPT>"o" { RTOKEN(ORIGIN);}
317 <BOTH,SCRIPT>"org" { RTOKEN(ORIGIN);}
318 <BOTH,SCRIPT>"l" { RTOKEN( LENGTH);}
319 <BOTH,SCRIPT>"len" { RTOKEN( LENGTH);}
320 <EXPRESSION,BOTH,SCRIPT>"INPUT_SECTION_FLAGS" { RTOKEN(INPUT_SECTION_FLAGS); }
321 <EXPRESSION,BOTH,SCRIPT>"INCLUDE" { RTOKEN(INCLUDE);}
322 <BOTH,SCRIPT>"PHDRS" { RTOKEN (PHDRS); }
323 <EXPRESSION,BOTH,SCRIPT>"AT" { RTOKEN(AT);}
324 <EXPRESSION,BOTH,SCRIPT>"ALIGN_WITH_INPUT" { RTOKEN(ALIGN_WITH_INPUT);}
325 <EXPRESSION,BOTH,SCRIPT>"SUBALIGN" { RTOKEN(SUBALIGN);}
326 <EXPRESSION,BOTH,SCRIPT>"HIDDEN" { RTOKEN(HIDDEN); }
327 <EXPRESSION,BOTH,SCRIPT>"PROVIDE" { RTOKEN(PROVIDE); }
328 <EXPRESSION,BOTH,SCRIPT>"PROVIDE_HIDDEN" { RTOKEN(PROVIDE_HIDDEN); }
329 <EXPRESSION,BOTH,SCRIPT>"KEEP" { RTOKEN(KEEP); }
330 <EXPRESSION,BOTH,SCRIPT>"EXCLUDE_FILE" { RTOKEN(EXCLUDE_FILE); }
331 <EXPRESSION,BOTH,SCRIPT>"CONSTANT" { RTOKEN(CONSTANT);}
332 <MRI>"#".*\n? { ++ lineno; }
333 <MRI>"\n" { ++ lineno; RTOKEN(NEWLINE); }
334 <MRI>"*".* { /* Mri comment line */ }
335 <MRI>";".* { /* Mri comment line */ }
336 <MRI>"END" { RTOKEN(ENDWORD); }
337 <MRI>"ALIGNMOD" { RTOKEN(ALIGNMOD);}
338 <MRI>"ALIGN" { RTOKEN(ALIGN_K);}
339 <MRI>"CHIP" { RTOKEN(CHIP); }
340 <MRI>"BASE" { RTOKEN(BASE); }
341 <MRI>"ALIAS" { RTOKEN(ALIAS); }
342 <MRI>"TRUNCATE" { RTOKEN(TRUNCATE); }
343 <MRI>"LOAD" { RTOKEN(LOAD); }
344 <MRI>"PUBLIC" { RTOKEN(PUBLIC); }
345 <MRI>"ORDER" { RTOKEN(ORDER); }
346 <MRI>"NAME" { RTOKEN(NAMEWORD); }
347 <MRI>"FORMAT" { RTOKEN(FORMAT); }
348 <MRI>"CASE" { RTOKEN(CASE); }
349 <MRI>"START" { RTOKEN(START); }
350 <MRI>"LIST".* { RTOKEN(LIST); /* LIST and ignore to end of line */ }
351 <MRI>"SECT" { RTOKEN(SECT); }
352 <EXPRESSION,BOTH,SCRIPT,MRI>"ABSOLUTE" { RTOKEN(ABSOLUTE); }
353 <MRI>"end" { RTOKEN(ENDWORD); }
354 <MRI>"alignmod" { RTOKEN(ALIGNMOD);}
355 <MRI>"align" { RTOKEN(ALIGN_K);}
356 <MRI>"chip" { RTOKEN(CHIP); }
357 <MRI>"base" { RTOKEN(BASE); }
358 <MRI>"alias" { RTOKEN(ALIAS); }
359 <MRI>"truncate" { RTOKEN(TRUNCATE); }
360 <MRI>"load" { RTOKEN(LOAD); }
361 <MRI>"public" { RTOKEN(PUBLIC); }
362 <MRI>"order" { RTOKEN(ORDER); }
363 <MRI>"name" { RTOKEN(NAMEWORD); }
364 <MRI>"format" { RTOKEN(FORMAT); }
365 <MRI>"case" { RTOKEN(CASE); }
366 <MRI>"extern" { RTOKEN(EXTERN); }
367 <MRI>"start" { RTOKEN(START); }
368 <MRI>"list".* { RTOKEN(LIST); /* LIST and ignore to end of line */ }
369 <MRI>"sect" { RTOKEN(SECT); }
370 <EXPRESSION,BOTH,SCRIPT,MRI>"absolute" { RTOKEN(ABSOLUTE); }
371
372 <MRI>{FILENAMECHAR1}{NOCFILENAMECHAR}* {
373 /* Filename without commas, needed to parse mri stuff */
374 yylval.name = xstrdup (yytext);
375 return NAME;
376 }
377
378
379 <BOTH,INPUTLIST>{FILENAMECHAR1}{FILENAMECHAR}* {
380 yylval.name = xstrdup (yytext);
381 return NAME;
382 }
383 <INPUTLIST>"="{FILENAMECHAR1}{FILENAMECHAR}* {
384 /* Filename to be prefixed by --sysroot or when non-sysrooted, nothing. */
385 yylval.name = xstrdup (yytext);
386 return NAME;
387 }
388 <BOTH,INPUTLIST>"-l"{FILENAMECHAR}+ {
389 yylval.name = xstrdup (yytext + 2);
390 return LNAME;
391 }
392 <EXPRESSION>{FILENAMECHAR1}{NOCFILENAMECHAR}* {
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 yylval.name = xstrdup (yytext + 1);
421 yylval.name[yyleng - 2] = 0;
422 return NAME;
423 }
424 <BOTH,SCRIPT,EXPRESSION>"\n" { lineno++;}
425 <MRI,BOTH,SCRIPT,EXPRESSION>[ \t\r]+ { }
426
427 <VERS_NODE,VERS_SCRIPT>[:,;] { return *yytext; }
428
429 <VERS_NODE>global { RTOKEN(GLOBAL); }
430
431 <VERS_NODE>local { RTOKEN(LOCAL); }
432
433 <VERS_NODE>extern { RTOKEN(EXTERN); }
434
435 <VERS_NODE>{V_IDENTIFIER} { yylval.name = xstrdup (yytext);
436 return VERS_IDENTIFIER; }
437
438 <VERS_SCRIPT>{V_TAG} { yylval.name = xstrdup (yytext);
439 return VERS_TAG; }
440
441 <VERS_START>"{" { BEGIN(VERS_SCRIPT); return *yytext; }
442
443 <VERS_SCRIPT>"{" { BEGIN(VERS_NODE);
444 vers_node_nesting = 0;
445 return *yytext;
446 }
447 <VERS_SCRIPT>"}" { return *yytext; }
448 <VERS_NODE>"{" { vers_node_nesting++; return *yytext; }
449 <VERS_NODE>"}" { if (--vers_node_nesting < 0)
450 BEGIN(VERS_SCRIPT);
451 return *yytext;
452 }
453
454 <VERS_START,VERS_NODE,VERS_SCRIPT,INPUTLIST>[\n] { lineno++; }
455
456 <VERS_START,VERS_NODE,VERS_SCRIPT>#.* { /* Eat up comments */ }
457
458 <VERS_START,VERS_NODE,VERS_SCRIPT,INPUTLIST>[ \t\r]+ { /* Eat up whitespace */ }
459
460 <<EOF>> {
461 include_stack_ptr--;
462 if (include_stack_ptr == 0)
463 yyterminate ();
464 else
465 yy_switch_to_buffer (include_stack[include_stack_ptr]);
466
467 lineno = lineno_stack[include_stack_ptr];
468 input_flags.sysrooted = sysrooted_stack[include_stack_ptr];
469
470 return END;
471 }
472
473 <SCRIPT,MRI,VERS_START,VERS_SCRIPT,VERS_NODE>. lex_warn_invalid (" in script", yytext);
474 <EXPRESSION,DEFSYMEXP,BOTH>. lex_warn_invalid (" in expression", yytext);
475
476 %%
477
478
479 /* Switch flex to reading script file NAME, open on FILE,
480 saving the current input info on the include stack. */
481
482 void
483 lex_push_file (FILE *file, const char *name, unsigned int sysrooted)
484 {
485 if (include_stack_ptr >= MAX_INCLUDE_DEPTH)
486 {
487 einfo ("%F:includes nested too deeply\n");
488 }
489 file_name_stack[include_stack_ptr] = name;
490 lineno_stack[include_stack_ptr] = lineno;
491 sysrooted_stack[include_stack_ptr] = input_flags.sysrooted;
492 include_stack[include_stack_ptr] = YY_CURRENT_BUFFER;
493
494 include_stack_ptr++;
495 lineno = 1;
496 input_flags.sysrooted = sysrooted;
497 yyin = file;
498 yy_switch_to_buffer (yy_create_buffer (yyin, YY_BUF_SIZE));
499 }
500
501 /* Return a newly created flex input buffer containing STRING,
502 which is SIZE bytes long. */
503
504 static YY_BUFFER_STATE
505 yy_create_string_buffer (const char *string, size_t size)
506 {
507 YY_BUFFER_STATE b;
508
509 /* Calls to m-alloc get turned by sed into xm-alloc. */
510 b = malloc (sizeof (struct yy_buffer_state));
511 b->yy_input_file = 0;
512 b->yy_buf_size = size;
513
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 = malloc ((unsigned) (b->yy_buf_size + 3));
517
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];
524
525 b->yy_is_our_buffer = 1;
526 b->yy_is_interactive = 0;
527 b->yy_at_bol = 1;
528 b->yy_fill_buffer = 0;
529
530 /* flex 2.4.7 changed the interface. FIXME: We should not be using
531 a flex internal interface in the first place! */
532 #ifdef YY_BUFFER_NEW
533 b->yy_buffer_status = YY_BUFFER_NEW;
534 #else
535 b->yy_eof_status = EOF_NOT_SEEN;
536 #endif
537
538 return b;
539 }
540
541 /* Switch flex to reading from STRING, saving the current input info
542 on the include stack. */
543
544 void
545 lex_redirect (const char *string, const char *fake_filename, unsigned int count)
546 {
547 YY_BUFFER_STATE tmp;
548
549 yy_init = 0;
550 if (include_stack_ptr >= MAX_INCLUDE_DEPTH)
551 {
552 einfo("%F: macros nested too deeply\n");
553 }
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;
557 include_stack_ptr++;
558 lineno = count;
559 tmp = yy_create_string_buffer (string, strlen (string));
560 yy_switch_to_buffer (tmp);
561 }
562
563 /* Functions to switch to a different flex start condition,
564 saving the current start condition on `state_stack'. */
565
566 static int state_stack[MAX_INCLUDE_DEPTH * 2];
567 static int *state_stack_p = state_stack;
568
569 void
570 ldlex_script (void)
571 {
572 *(state_stack_p)++ = yy_start;
573 BEGIN (SCRIPT);
574 }
575
576 void
577 ldlex_inputlist (void)
578 {
579 *(state_stack_p)++ = yy_start;
580 BEGIN (INPUTLIST);
581 }
582
583 void
584 ldlex_mri_script (void)
585 {
586 *(state_stack_p)++ = yy_start;
587 BEGIN (MRI);
588 }
589
590 void
591 ldlex_version_script (void)
592 {
593 *(state_stack_p)++ = yy_start;
594 BEGIN (VERS_START);
595 }
596
597 void
598 ldlex_version_file (void)
599 {
600 *(state_stack_p)++ = yy_start;
601 BEGIN (VERS_SCRIPT);
602 }
603
604 void
605 ldlex_defsym (void)
606 {
607 *(state_stack_p)++ = yy_start;
608 BEGIN (DEFSYMEXP);
609 }
610
611 void
612 ldlex_expression (void)
613 {
614 *(state_stack_p)++ = yy_start;
615 BEGIN (EXPRESSION);
616 }
617
618 void
619 ldlex_both (void)
620 {
621 *(state_stack_p)++ = yy_start;
622 BEGIN (BOTH);
623 }
624
625 void
626 ldlex_popstate (void)
627 {
628 yy_start = *(--state_stack_p);
629 }
630
631 /* Return the current file name, or the previous file if no file is
632 current. */
633
634 const char*
635 ldlex_filename (void)
636 {
637 return file_name_stack[include_stack_ptr - (include_stack_ptr != 0)];
638 }
639
640
641 /* Place up to MAX_SIZE characters in BUF and return
642 either the number of characters read, or 0 to indicate EOF. */
643
644 static int
645 yy_input (char *buf, int max_size)
646 {
647 int result = 0;
648 if (YY_CURRENT_BUFFER->yy_input_file)
649 {
650 if (yyin)
651 {
652 result = fread (buf, 1, max_size, yyin);
653 if (result < max_size && ferror (yyin))
654 einfo ("%F%P: read in flex scanner failed\n");
655 }
656 }
657 return result;
658 }
659
660 /* Eat the rest of a C-style comment. */
661
662 static void
663 comment (void)
664 {
665 int c;
666
667 while (1)
668 {
669 c = input();
670 while (c != '*' && c != EOF)
671 {
672 if (c == '\n')
673 lineno++;
674 c = input();
675 }
676
677 if (c == '*')
678 {
679 c = input();
680 while (c == '*')
681 c = input();
682 if (c == '/')
683 break; /* found the end */
684 }
685
686 if (c == '\n')
687 lineno++;
688
689 if (c == EOF)
690 {
691 einfo( "%F%P: EOF in comment\n");
692 break;
693 }
694 }
695 }
696
697 /* Warn the user about a garbage character WHAT in the input
698 in context WHERE. */
699
700 static void
701 lex_warn_invalid (char *where, char *what)
702 {
703 char buf[5];
704
705 /* If we have found an input file whose format we do not recognize,
706 and we are therefore treating it as a linker script, and we find
707 an invalid character, then most likely this is a real object file
708 of some different format. Treat it as such. */
709 if (ldfile_assumed_script)
710 {
711 bfd_set_error (bfd_error_file_not_recognized);
712 einfo ("%F%s: file not recognized: %E\n", ldlex_filename ());
713 }
714
715 if (! ISPRINT (*what))
716 {
717 sprintf (buf, "\\%03o", *(unsigned char *) what);
718 what = buf;
719 }
720
721 einfo ("%P:%S: ignoring invalid character `%s'%s\n", NULL, what, where);
722 }
723