Commit | Line | Data |
---|---|---|
252b5132 RH |
1 | %{ |
2 | ||
968ec2b9 | 3 | /* Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
1579bae1 | 4 | 2000, 2001, 2002, 2003 Free Software Foundation, Inc. |
252b5132 RH |
5 | |
6 | This file is part of GLD, the Gnu Linker. | |
7 | ||
8 | GLD is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2, or (at your option) | |
11 | any later version. | |
12 | ||
13 | GLD is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with GLD; see the file COPYING. If not, write to the Free | |
20 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
21 | 02111-1307, USA. */ | |
22 | ||
23 | /* | |
24 | This was written by steve chamberlain | |
25 | sac@cygnus.com | |
26 | */ | |
27 | ||
28 | ||
252b5132 | 29 | #include <stdio.h> |
252b5132 RH |
30 | |
31 | #ifdef MPW | |
32 | /* Prevent enum redefinition problems. */ | |
33 | #define TRUE_FALSE_ALREADY_DEFINED | |
34 | #endif /* MPW */ | |
35 | ||
36 | #include "bfd.h" | |
37 | #include "sysdep.h" | |
3882b010 | 38 | #include "safe-ctype.h" |
e3e942e9 | 39 | #include "bfdlink.h" |
252b5132 | 40 | #include "ld.h" |
252b5132 RH |
41 | #include "ldmisc.h" |
42 | #include "ldexp.h" | |
43 | #include "ldlang.h" | |
df2a7313 | 44 | #include <ldgram.h> |
252b5132 RH |
45 | #include "ldfile.h" |
46 | #include "ldlex.h" | |
47 | #include "ldmain.h" | |
d1b2b2dc | 48 | #include "libiberty.h" |
252b5132 RH |
49 | |
50 | /* The type of top-level parser input. | |
51 | yylex and yyparse (indirectly) both check this. */ | |
52 | input_type parser_input; | |
53 | ||
54 | /* Line number in the current input file. | |
55 | (FIXME Actually, it doesn't appear to get reset for each file?) */ | |
56 | unsigned int lineno = 1; | |
57 | ||
58 | /* The string we are currently lexing, or NULL if we are reading a | |
59 | file. */ | |
60 | const char *lex_string = NULL; | |
61 | ||
62 | /* Support for flex reading from more than one input file (stream). | |
63 | `include_stack' is flex's input state for each open file; | |
64 | `file_name_stack' is the file names. `lineno_stack' is the current | |
65 | line numbers. | |
66 | ||
67 | If `include_stack_ptr' is 0, we haven't started reading anything yet. | |
68 | Otherwise, stack elements 0 through `include_stack_ptr - 1' are valid. */ | |
69 | ||
70 | #undef YY_INPUT | |
1579bae1 | 71 | #define YY_INPUT(buf,result,max_size) yy_input (buf, &result, max_size) |
252b5132 RH |
72 | |
73 | #define MAX_INCLUDE_DEPTH 10 | |
74 | static YY_BUFFER_STATE include_stack[MAX_INCLUDE_DEPTH]; | |
75 | static const char *file_name_stack[MAX_INCLUDE_DEPTH]; | |
76 | static unsigned int lineno_stack[MAX_INCLUDE_DEPTH]; | |
77 | static unsigned int include_stack_ptr = 0; | |
78 | static int vers_node_nesting = 0; | |
79 | ||
1579bae1 AM |
80 | static void yy_input (char *, int *, int); |
81 | static void comment (void); | |
82 | static void lex_warn_invalid (char *where, char *what); | |
252b5132 | 83 | |
1579bae1 | 84 | /* STATES |
252b5132 RH |
85 | EXPRESSION definitely in an expression |
86 | SCRIPT definitely in a script | |
87 | BOTH either EXPRESSION or SCRIPT | |
88 | DEFSYMEXP in an argument to -defsym | |
89 | MRI in an MRI script | |
90 | VERS_START starting a Sun style mapfile | |
91 | VERS_SCRIPT a Sun style mapfile | |
92 | VERS_NODE a node within a Sun style mapfile | |
93 | */ | |
94 | #define RTOKEN(x) { yylval.token = x; return x; } | |
95 | ||
96 | /* Some versions of flex want this. */ | |
97 | #ifndef yywrap | |
1579bae1 | 98 | int yywrap (void) { return 1; } |
252b5132 RH |
99 | #endif |
100 | %} | |
101 | ||
102 | %a 4000 | |
103 | %o 5000 | |
104 | ||
105 | CMDFILENAMECHAR [_a-zA-Z0-9\/\.\\_\+\$\:\[\]\\\,\=\&\!\<\>\-\~] | |
106 | CMDFILENAMECHAR1 [_a-zA-Z0-9\/\.\\_\+\$\:\[\]\\\,\=\&\!\<\>\~] | |
107 | FILENAMECHAR1 [_a-zA-Z\/\.\\\$\_\~] | |
108 | SYMBOLCHARN [_a-zA-Z\/\.\\\$\_\~0-9] | |
109 | FILENAMECHAR [_a-zA-Z0-9\/\.\-\_\+\=\$\:\[\]\\\,\~] | |
110 | WILDCHAR [_a-zA-Z0-9\/\.\-\_\+\=\$\:\[\]\\\,\~\?\*] | |
1579bae1 | 111 | WHITE [ \t\n\r]+ |
252b5132 RH |
112 | |
113 | NOCFILENAMECHAR [_a-zA-Z0-9\/\.\-\_\+\$\:\[\]\\\~] | |
114 | ||
115 | V_TAG [.$_a-zA-Z][._a-zA-Z0-9]* | |
313e35ee | 116 | V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^]([*?.$_a-zA-Z0-9\[\]\-\!\^]|::)* |
252b5132 RH |
117 | |
118 | %s SCRIPT | |
119 | %s EXPRESSION | |
120 | %s BOTH | |
121 | %s DEFSYMEXP | |
122 | %s MRI | |
123 | %s VERS_START | |
124 | %s VERS_SCRIPT | |
125 | %s VERS_NODE | |
126 | %% | |
127 | ||
128 | if (parser_input != input_selected) | |
129 | { | |
130 | /* The first token of the input determines the initial parser state. */ | |
131 | input_type t = parser_input; | |
132 | parser_input = input_selected; | |
133 | switch (t) | |
134 | { | |
135 | case input_script: return INPUT_SCRIPT; break; | |
136 | case input_mri_script: return INPUT_MRI_SCRIPT; break; | |
137 | case input_version_script: return INPUT_VERSION_SCRIPT; break; | |
138 | case input_defsym: return INPUT_DEFSYM; break; | |
139 | default: abort (); | |
140 | } | |
141 | } | |
142 | ||
1579bae1 | 143 | <BOTH,SCRIPT,EXPRESSION,VERS_START,VERS_NODE,VERS_SCRIPT>"/*" { comment (); } |
252b5132 RH |
144 | |
145 | ||
146 | <DEFSYMEXP>"-" { RTOKEN('-');} | |
147 | <DEFSYMEXP>"+" { RTOKEN('+');} | |
1579bae1 | 148 | <DEFSYMEXP>{FILENAMECHAR1}{SYMBOLCHARN}* { yylval.name = xstrdup (yytext); return NAME; } |
252b5132 RH |
149 | <DEFSYMEXP>"=" { RTOKEN('='); } |
150 | ||
151 | <MRI,EXPRESSION>"$"([0-9A-Fa-f])+ { | |
1579bae1 AM |
152 | yylval.integer = bfd_scan_vma (yytext + 1, 0, 16); |
153 | yylval.bigint.str = NULL; | |
252b5132 RH |
154 | return INT; |
155 | } | |
156 | ||
157 | <MRI,EXPRESSION>([0-9A-Fa-f])+(H|h|X|x|B|b|O|o|D|d) { | |
158 | int ibase ; | |
1579bae1 AM |
159 | switch (yytext[yyleng - 1]) { |
160 | case 'X': | |
252b5132 RH |
161 | case 'x': |
162 | case 'H': | |
163 | case 'h': | |
164 | ibase = 16; | |
165 | break; | |
166 | case 'O': | |
167 | case 'o': | |
168 | ibase = 8; | |
169 | break; | |
170 | case 'B': | |
171 | case 'b': | |
172 | ibase = 2; | |
173 | break; | |
174 | default: | |
175 | ibase = 10; | |
176 | } | |
177 | yylval.integer = bfd_scan_vma (yytext, 0, | |
178 | ibase); | |
1579bae1 | 179 | yylval.bigint.str = NULL; |
252b5132 RH |
180 | return INT; |
181 | } | |
2c382fb6 | 182 | <SCRIPT,DEFSYMEXP,MRI,BOTH,EXPRESSION>((("$"|0[xX])([0-9A-Fa-f])+)|(([0-9])+))(M|K|m|k)? { |
252b5132 | 183 | char *s = yytext; |
2c382fb6 | 184 | int ibase = 0; |
252b5132 RH |
185 | |
186 | if (*s == '$') | |
2c382fb6 AM |
187 | { |
188 | ++s; | |
189 | ibase = 16; | |
190 | } | |
191 | yylval.integer = bfd_scan_vma (s, 0, ibase); | |
1579bae1 AM |
192 | yylval.bigint.str = NULL; |
193 | if (yytext[yyleng - 1] == 'M' | |
194 | || yytext[yyleng - 1] == 'm') | |
2c382fb6 AM |
195 | { |
196 | yylval.integer *= 1024 * 1024; | |
197 | } | |
1579bae1 AM |
198 | else if (yytext[yyleng - 1] == 'K' |
199 | || yytext[yyleng - 1]=='k') | |
2c382fb6 AM |
200 | { |
201 | yylval.integer *= 1024; | |
202 | } | |
203 | else if (yytext[0] == '0' | |
204 | && (yytext[1] == 'x' | |
205 | || yytext[1] == 'X')) | |
206 | { | |
207 | yylval.bigint.str = xstrdup (yytext + 2); | |
208 | } | |
252b5132 RH |
209 | return INT; |
210 | } | |
211 | <BOTH,SCRIPT,EXPRESSION,MRI>"]" { RTOKEN(']');} | |
212 | <BOTH,SCRIPT,EXPRESSION,MRI>"[" { RTOKEN('[');} | |
213 | <BOTH,SCRIPT,EXPRESSION,MRI>"<<=" { RTOKEN(LSHIFTEQ);} | |
214 | <BOTH,SCRIPT,EXPRESSION,MRI>">>=" { RTOKEN(RSHIFTEQ);} | |
215 | <BOTH,SCRIPT,EXPRESSION,MRI>"||" { RTOKEN(OROR);} | |
216 | <BOTH,SCRIPT,EXPRESSION,MRI>"==" { RTOKEN(EQ);} | |
217 | <BOTH,SCRIPT,EXPRESSION,MRI>"!=" { RTOKEN(NE);} | |
218 | <BOTH,SCRIPT,EXPRESSION,MRI>">=" { RTOKEN(GE);} | |
219 | <BOTH,SCRIPT,EXPRESSION,MRI>"<=" { RTOKEN(LE);} | |
220 | <BOTH,SCRIPT,EXPRESSION,MRI>"<<" { RTOKEN(LSHIFT);} | |
221 | <BOTH,SCRIPT,EXPRESSION,MRI>">>" { RTOKEN(RSHIFT);} | |
222 | <BOTH,SCRIPT,EXPRESSION,MRI>"+=" { RTOKEN(PLUSEQ);} | |
223 | <BOTH,SCRIPT,EXPRESSION,MRI>"-=" { RTOKEN(MINUSEQ);} | |
224 | <BOTH,SCRIPT,EXPRESSION,MRI>"*=" { RTOKEN(MULTEQ);} | |
225 | <BOTH,SCRIPT,EXPRESSION,MRI>"/=" { RTOKEN(DIVEQ);} | |
226 | <BOTH,SCRIPT,EXPRESSION,MRI>"&=" { RTOKEN(ANDEQ);} | |
227 | <BOTH,SCRIPT,EXPRESSION,MRI>"|=" { RTOKEN(OREQ);} | |
228 | <BOTH,SCRIPT,EXPRESSION,MRI>"&&" { RTOKEN(ANDAND);} | |
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>"<" { RTOKEN('<');} | |
242 | <BOTH,SCRIPT,EXPRESSION,MRI>"=" { RTOKEN('=');} | |
243 | <BOTH,SCRIPT,EXPRESSION,MRI>"}" { RTOKEN('}') ; } | |
244 | <BOTH,SCRIPT,EXPRESSION,MRI>"{" { RTOKEN('{'); } | |
245 | <BOTH,SCRIPT,EXPRESSION,MRI>")" { RTOKEN(')');} | |
246 | <BOTH,SCRIPT,EXPRESSION,MRI>"(" { RTOKEN('(');} | |
247 | <BOTH,SCRIPT,EXPRESSION,MRI>":" { RTOKEN(':'); } | |
248 | <BOTH,SCRIPT,EXPRESSION,MRI>";" { RTOKEN(';');} | |
249 | <BOTH,SCRIPT>"MEMORY" { RTOKEN(MEMORY);} | |
250 | <BOTH,SCRIPT>"ORIGIN" { RTOKEN(ORIGIN);} | |
251 | <BOTH,SCRIPT>"VERSION" { RTOKEN(VERSIONK);} | |
252 | <EXPRESSION,BOTH,SCRIPT>"BLOCK" { RTOKEN(BLOCK);} | |
253 | <EXPRESSION,BOTH,SCRIPT>"BIND" { RTOKEN(BIND);} | |
254 | <BOTH,SCRIPT>"LENGTH" { RTOKEN(LENGTH);} | |
255 | <EXPRESSION,BOTH,SCRIPT>"ALIGN" { RTOKEN(ALIGN_K);} | |
2d20f7bf JJ |
256 | <EXPRESSION,BOTH,SCRIPT>"DATA_SEGMENT_ALIGN" { RTOKEN(DATA_SEGMENT_ALIGN);} |
257 | <EXPRESSION,BOTH,SCRIPT>"DATA_SEGMENT_END" { RTOKEN(DATA_SEGMENT_END);} | |
252b5132 RH |
258 | <EXPRESSION,BOTH,SCRIPT>"ADDR" { RTOKEN(ADDR);} |
259 | <EXPRESSION,BOTH,SCRIPT>"LOADADDR" { RTOKEN(LOADADDR);} | |
260 | <EXPRESSION,BOTH>"MAX" { RTOKEN(MAX_K); } | |
261 | <EXPRESSION,BOTH>"MIN" { RTOKEN(MIN_K); } | |
262 | <EXPRESSION,BOTH>"ASSERT" { RTOKEN(ASSERT_K); } | |
263 | <BOTH,SCRIPT>"ENTRY" { RTOKEN(ENTRY);} | |
264 | <BOTH,SCRIPT,MRI>"EXTERN" { RTOKEN(EXTERN);} | |
265 | <EXPRESSION,BOTH,SCRIPT>"NEXT" { RTOKEN(NEXT);} | |
266 | <EXPRESSION,BOTH,SCRIPT>"sizeof_headers" { RTOKEN(SIZEOF_HEADERS);} | |
267 | <EXPRESSION,BOTH,SCRIPT>"SIZEOF_HEADERS" { RTOKEN(SIZEOF_HEADERS);} | |
268 | <BOTH,SCRIPT>"MAP" { RTOKEN(MAP);} | |
269 | <EXPRESSION,BOTH,SCRIPT>"SIZEOF" { RTOKEN(SIZEOF);} | |
270 | <BOTH,SCRIPT>"TARGET" { RTOKEN(TARGET_K);} | |
271 | <BOTH,SCRIPT>"SEARCH_DIR" { RTOKEN(SEARCH_DIR);} | |
272 | <BOTH,SCRIPT>"OUTPUT" { RTOKEN(OUTPUT);} | |
273 | <BOTH,SCRIPT>"INPUT" { RTOKEN(INPUT);} | |
274 | <EXPRESSION,BOTH,SCRIPT>"GROUP" { RTOKEN(GROUP);} | |
275 | <EXPRESSION,BOTH,SCRIPT>"DEFINED" { RTOKEN(DEFINED);} | |
276 | <BOTH,SCRIPT>"CREATE_OBJECT_SYMBOLS" { RTOKEN(CREATE_OBJECT_SYMBOLS);} | |
277 | <BOTH,SCRIPT>"CONSTRUCTORS" { RTOKEN( CONSTRUCTORS);} | |
278 | <BOTH,SCRIPT>"FORCE_COMMON_ALLOCATION" { RTOKEN(FORCE_COMMON_ALLOCATION);} | |
4818e05f | 279 | <BOTH,SCRIPT>"INHIBIT_COMMON_ALLOCATION" { RTOKEN(INHIBIT_COMMON_ALLOCATION);} |
252b5132 RH |
280 | <BOTH,SCRIPT>"SECTIONS" { RTOKEN(SECTIONS);} |
281 | <BOTH,SCRIPT>"FILL" { RTOKEN(FILL);} | |
282 | <BOTH,SCRIPT>"STARTUP" { RTOKEN(STARTUP);} | |
283 | <BOTH,SCRIPT>"OUTPUT_FORMAT" { RTOKEN(OUTPUT_FORMAT);} | |
284 | <BOTH,SCRIPT>"OUTPUT_ARCH" { RTOKEN( OUTPUT_ARCH);} | |
285 | <BOTH,SCRIPT>"HLL" { RTOKEN(HLL);} | |
286 | <BOTH,SCRIPT>"SYSLIB" { RTOKEN(SYSLIB);} | |
287 | <BOTH,SCRIPT>"FLOAT" { RTOKEN(FLOAT);} | |
288 | <BOTH,SCRIPT>"QUAD" { RTOKEN( QUAD);} | |
289 | <BOTH,SCRIPT>"SQUAD" { RTOKEN( SQUAD);} | |
290 | <BOTH,SCRIPT>"LONG" { RTOKEN( LONG);} | |
291 | <BOTH,SCRIPT>"SHORT" { RTOKEN( SHORT);} | |
292 | <BOTH,SCRIPT>"BYTE" { RTOKEN( BYTE);} | |
293 | <BOTH,SCRIPT>"NOFLOAT" { RTOKEN(NOFLOAT);} | |
294 | <EXPRESSION,BOTH,SCRIPT>"NOCROSSREFS" { RTOKEN(NOCROSSREFS);} | |
295 | <BOTH,SCRIPT>"OVERLAY" { RTOKEN(OVERLAY); } | |
296 | <BOTH,SCRIPT>"SORT" { RTOKEN(SORT); } | |
297 | <EXPRESSION,BOTH,SCRIPT>"NOLOAD" { RTOKEN(NOLOAD);} | |
298 | <EXPRESSION,BOTH,SCRIPT>"DSECT" { RTOKEN(DSECT);} | |
299 | <EXPRESSION,BOTH,SCRIPT>"COPY" { RTOKEN(COPY);} | |
300 | <EXPRESSION,BOTH,SCRIPT>"INFO" { RTOKEN(INFO);} | |
301 | <EXPRESSION,BOTH,SCRIPT>"OVERLAY" { RTOKEN(OVERLAY);} | |
302 | <BOTH,SCRIPT>"o" { RTOKEN(ORIGIN);} | |
303 | <BOTH,SCRIPT>"org" { RTOKEN(ORIGIN);} | |
304 | <BOTH,SCRIPT>"l" { RTOKEN( LENGTH);} | |
305 | <BOTH,SCRIPT>"len" { RTOKEN( LENGTH);} | |
306 | <BOTH,SCRIPT>"INCLUDE" { RTOKEN(INCLUDE);} | |
307 | <BOTH,SCRIPT>"PHDRS" { RTOKEN (PHDRS); } | |
308 | <EXPRESSION,BOTH,SCRIPT>"AT" { RTOKEN(AT);} | |
7e7d5768 | 309 | <EXPRESSION,BOTH,SCRIPT>"SUBALIGN" { RTOKEN(SUBALIGN);} |
252b5132 RH |
310 | <EXPRESSION,BOTH,SCRIPT>"PROVIDE" { RTOKEN(PROVIDE); } |
311 | <EXPRESSION,BOTH,SCRIPT>"KEEP" { RTOKEN(KEEP); } | |
312 | <EXPRESSION,BOTH,SCRIPT>"EXCLUDE_FILE" { RTOKEN(EXCLUDE_FILE); } | |
313 | <MRI>"#".*\n? { ++ lineno; } | |
314 | <MRI>"\n" { ++ lineno; RTOKEN(NEWLINE); } | |
315 | <MRI>"*".* { /* Mri comment line */ } | |
316 | <MRI>";".* { /* Mri comment line */ } | |
317 | <MRI>"END" { RTOKEN(ENDWORD); } | |
318 | <MRI>"ALIGNMOD" { RTOKEN(ALIGNMOD);} | |
319 | <MRI>"ALIGN" { RTOKEN(ALIGN_K);} | |
320 | <MRI>"CHIP" { RTOKEN(CHIP); } | |
321 | <MRI>"BASE" { RTOKEN(BASE); } | |
322 | <MRI>"ALIAS" { RTOKEN(ALIAS); } | |
323 | <MRI>"TRUNCATE" { RTOKEN(TRUNCATE); } | |
324 | <MRI>"LOAD" { RTOKEN(LOAD); } | |
325 | <MRI>"PUBLIC" { RTOKEN(PUBLIC); } | |
326 | <MRI>"ORDER" { RTOKEN(ORDER); } | |
327 | <MRI>"NAME" { RTOKEN(NAMEWORD); } | |
328 | <MRI>"FORMAT" { RTOKEN(FORMAT); } | |
329 | <MRI>"CASE" { RTOKEN(CASE); } | |
330 | <MRI>"START" { RTOKEN(START); } | |
331 | <MRI>"LIST".* { RTOKEN(LIST); /* LIST and ignore to end of line */ } | |
332 | <MRI>"SECT" { RTOKEN(SECT); } | |
333 | <EXPRESSION,BOTH,SCRIPT,MRI>"ABSOLUTE" { RTOKEN(ABSOLUTE); } | |
334 | <MRI>"end" { RTOKEN(ENDWORD); } | |
335 | <MRI>"alignmod" { RTOKEN(ALIGNMOD);} | |
336 | <MRI>"align" { RTOKEN(ALIGN_K);} | |
337 | <MRI>"chip" { RTOKEN(CHIP); } | |
338 | <MRI>"base" { RTOKEN(BASE); } | |
339 | <MRI>"alias" { RTOKEN(ALIAS); } | |
340 | <MRI>"truncate" { RTOKEN(TRUNCATE); } | |
341 | <MRI>"load" { RTOKEN(LOAD); } | |
342 | <MRI>"public" { RTOKEN(PUBLIC); } | |
343 | <MRI>"order" { RTOKEN(ORDER); } | |
344 | <MRI>"name" { RTOKEN(NAMEWORD); } | |
345 | <MRI>"format" { RTOKEN(FORMAT); } | |
346 | <MRI>"case" { RTOKEN(CASE); } | |
347 | <MRI>"extern" { RTOKEN(EXTERN); } | |
348 | <MRI>"start" { RTOKEN(START); } | |
349 | <MRI>"list".* { RTOKEN(LIST); /* LIST and ignore to end of line */ } | |
350 | <MRI>"sect" { RTOKEN(SECT); } | |
351 | <EXPRESSION,BOTH,SCRIPT,MRI>"absolute" { RTOKEN(ABSOLUTE); } | |
352 | ||
353 | <MRI>{FILENAMECHAR1}{NOCFILENAMECHAR}* { | |
354 | /* Filename without commas, needed to parse mri stuff */ | |
1579bae1 | 355 | yylval.name = xstrdup (yytext); |
252b5132 RH |
356 | return NAME; |
357 | } | |
358 | ||
359 | ||
360 | <BOTH,EXPRESSION>{FILENAMECHAR1}{FILENAMECHAR}* { | |
1579bae1 | 361 | yylval.name = xstrdup (yytext); |
252b5132 RH |
362 | return NAME; |
363 | } | |
364 | <BOTH,EXPRESSION>"-l"{FILENAMECHAR}+ { | |
d1b2b2dc | 365 | yylval.name = xstrdup (yytext + 2); |
252b5132 RH |
366 | return LNAME; |
367 | } | |
368 | <SCRIPT>{WILDCHAR}* { | |
369 | /* Annoyingly, this pattern can match comments, and we have | |
370 | longest match issues to consider. So if the first two | |
371 | characters are a comment opening, put the input back and | |
372 | try again. */ | |
373 | if (yytext[0] == '/' && yytext[1] == '*') | |
374 | { | |
1579bae1 | 375 | yyless (2); |
252b5132 RH |
376 | comment (); |
377 | } | |
378 | else | |
379 | { | |
1579bae1 | 380 | yylval.name = xstrdup (yytext); |
252b5132 RH |
381 | return NAME; |
382 | } | |
383 | } | |
384 | ||
385 | <EXPRESSION,BOTH,SCRIPT,VERS_NODE>"\""[^\"]*"\"" { | |
386 | /* No matter the state, quotes | |
387 | give what's inside */ | |
1579bae1 AM |
388 | yylval.name = xstrdup (yytext + 1); |
389 | yylval.name[yyleng - 2] = 0; | |
252b5132 RH |
390 | return NAME; |
391 | } | |
392 | <BOTH,SCRIPT,EXPRESSION>"\n" { lineno++;} | |
393 | <MRI,BOTH,SCRIPT,EXPRESSION>[ \t\r]+ { } | |
394 | ||
395 | <VERS_NODE,VERS_SCRIPT>[:,;] { return *yytext; } | |
396 | ||
397 | <VERS_NODE>global { RTOKEN(GLOBAL); } | |
398 | ||
399 | <VERS_NODE>local { RTOKEN(LOCAL); } | |
400 | ||
401 | <VERS_NODE>extern { RTOKEN(EXTERN); } | |
402 | ||
d1b2b2dc | 403 | <VERS_NODE>{V_IDENTIFIER} { yylval.name = xstrdup (yytext); |
252b5132 RH |
404 | return VERS_IDENTIFIER; } |
405 | ||
d1b2b2dc | 406 | <VERS_SCRIPT>{V_TAG} { yylval.name = xstrdup (yytext); |
252b5132 RH |
407 | return VERS_TAG; } |
408 | ||
409 | <VERS_START>"{" { BEGIN(VERS_SCRIPT); return *yytext; } | |
410 | ||
1579bae1 | 411 | <VERS_SCRIPT>"{" { BEGIN(VERS_NODE); |
252b5132 RH |
412 | vers_node_nesting = 0; |
413 | return *yytext; | |
414 | } | |
415 | <VERS_SCRIPT>"}" { return *yytext; } | |
416 | <VERS_NODE>"{" { vers_node_nesting++; return *yytext; } | |
417 | <VERS_NODE>"}" { if (--vers_node_nesting < 0) | |
418 | BEGIN(VERS_SCRIPT); | |
419 | return *yytext; | |
420 | } | |
421 | ||
422 | <VERS_START,VERS_NODE,VERS_SCRIPT>[\n] { lineno++; } | |
423 | ||
424 | <VERS_START,VERS_NODE,VERS_SCRIPT>#.* { /* Eat up comments */ } | |
425 | ||
426 | <VERS_START,VERS_NODE,VERS_SCRIPT>[ \t\r]+ { /* Eat up whitespace */ } | |
427 | ||
428 | <<EOF>> { | |
429 | include_stack_ptr--; | |
1579bae1 AM |
430 | |
431 | if (include_stack_ptr == 0) | |
252b5132 | 432 | { |
1579bae1 | 433 | yyterminate (); |
252b5132 | 434 | } |
1579bae1 | 435 | else |
252b5132 | 436 | { |
1579bae1 | 437 | yy_switch_to_buffer (include_stack[include_stack_ptr]); |
252b5132 | 438 | } |
b47c4208 | 439 | |
252b5132 | 440 | ldfile_input_filename = file_name_stack[include_stack_ptr - 1]; |
b47c4208 | 441 | lineno = lineno_stack[include_stack_ptr]; |
252b5132 RH |
442 | |
443 | return END; | |
444 | } | |
445 | ||
1579bae1 AM |
446 | <SCRIPT,MRI,VERS_START,VERS_SCRIPT,VERS_NODE>. lex_warn_invalid (" in script", yytext); |
447 | <EXPRESSION,DEFSYMEXP,BOTH>. lex_warn_invalid (" in expression", yytext); | |
448 | ||
252b5132 RH |
449 | %% |
450 | \f | |
451 | ||
452 | /* Switch flex to reading script file NAME, open on FILE, | |
453 | saving the current input info on the include stack. */ | |
454 | ||
455 | void | |
1579bae1 | 456 | lex_push_file (FILE *file, const char *name) |
252b5132 | 457 | { |
1579bae1 | 458 | if (include_stack_ptr >= MAX_INCLUDE_DEPTH) |
252b5132 | 459 | { |
1579bae1 | 460 | einfo ("%F:includes nested too deeply\n"); |
252b5132 RH |
461 | } |
462 | file_name_stack[include_stack_ptr] = name; | |
b47c4208 | 463 | lineno_stack[include_stack_ptr] = lineno; |
252b5132 RH |
464 | include_stack[include_stack_ptr] = YY_CURRENT_BUFFER; |
465 | ||
466 | include_stack_ptr++; | |
b47c4208 | 467 | lineno = 1; |
252b5132 | 468 | yyin = file; |
1579bae1 | 469 | yy_switch_to_buffer (yy_create_buffer (yyin, YY_BUF_SIZE)); |
252b5132 RH |
470 | } |
471 | ||
472 | /* Return a newly created flex input buffer containing STRING, | |
473 | which is SIZE bytes long. */ | |
474 | ||
1579bae1 AM |
475 | static YY_BUFFER_STATE |
476 | yy_create_string_buffer (const char *string, size_t size) | |
252b5132 RH |
477 | { |
478 | YY_BUFFER_STATE b; | |
479 | ||
480 | /* Calls to m-alloc get turned by sed into xm-alloc. */ | |
1579bae1 | 481 | b = malloc (sizeof (struct yy_buffer_state)); |
252b5132 RH |
482 | b->yy_input_file = 0; |
483 | b->yy_buf_size = size; | |
484 | ||
485 | /* yy_ch_buf has to be 2 characters longer than the size given because | |
486 | we need to put in 2 end-of-buffer characters. */ | |
1579bae1 | 487 | b->yy_ch_buf = malloc ((unsigned) (b->yy_buf_size + 3)); |
252b5132 RH |
488 | |
489 | b->yy_ch_buf[0] = '\n'; | |
490 | strcpy (b->yy_ch_buf+1, string); | |
491 | b->yy_ch_buf[size+1] = YY_END_OF_BUFFER_CHAR; | |
492 | b->yy_ch_buf[size+2] = YY_END_OF_BUFFER_CHAR; | |
493 | b->yy_n_chars = size+1; | |
494 | b->yy_buf_pos = &b->yy_ch_buf[1]; | |
495 | ||
dca7760f AM |
496 | b->yy_is_our_buffer = 1; |
497 | b->yy_is_interactive = 0; | |
498 | b->yy_at_bol = 1; | |
499 | b->yy_fill_buffer = 0; | |
500 | ||
252b5132 RH |
501 | /* flex 2.4.7 changed the interface. FIXME: We should not be using |
502 | a flex internal interface in the first place! */ | |
503 | #ifdef YY_BUFFER_NEW | |
504 | b->yy_buffer_status = YY_BUFFER_NEW; | |
505 | #else | |
506 | b->yy_eof_status = EOF_NOT_SEEN; | |
507 | #endif | |
508 | ||
509 | return b; | |
510 | } | |
511 | ||
512 | /* Switch flex to reading from STRING, saving the current input info | |
513 | on the include stack. */ | |
514 | ||
515 | void | |
1579bae1 | 516 | lex_redirect (const char *string) |
252b5132 RH |
517 | { |
518 | YY_BUFFER_STATE tmp; | |
519 | ||
520 | yy_init = 0; | |
1579bae1 | 521 | if (include_stack_ptr >= MAX_INCLUDE_DEPTH) |
252b5132 RH |
522 | { |
523 | einfo("%F: macros nested too deeply\n"); | |
524 | } | |
525 | file_name_stack[include_stack_ptr] = "redirect"; | |
b47c4208 | 526 | lineno_stack[include_stack_ptr] = lineno; |
252b5132 RH |
527 | include_stack[include_stack_ptr] = YY_CURRENT_BUFFER; |
528 | include_stack_ptr++; | |
b47c4208 | 529 | lineno = 1; |
252b5132 RH |
530 | tmp = yy_create_string_buffer (string, strlen (string)); |
531 | yy_switch_to_buffer (tmp); | |
252b5132 RH |
532 | } |
533 | \f | |
534 | /* Functions to switch to a different flex start condition, | |
535 | saving the current start condition on `state_stack'. */ | |
536 | ||
537 | static int state_stack[MAX_INCLUDE_DEPTH * 2]; | |
538 | static int *state_stack_p = state_stack; | |
539 | ||
540 | void | |
1579bae1 | 541 | ldlex_script (void) |
252b5132 RH |
542 | { |
543 | *(state_stack_p)++ = yy_start; | |
544 | BEGIN (SCRIPT); | |
545 | } | |
546 | ||
547 | void | |
1579bae1 | 548 | ldlex_mri_script (void) |
252b5132 RH |
549 | { |
550 | *(state_stack_p)++ = yy_start; | |
551 | BEGIN (MRI); | |
552 | } | |
553 | ||
554 | void | |
1579bae1 | 555 | ldlex_version_script (void) |
252b5132 RH |
556 | { |
557 | *(state_stack_p)++ = yy_start; | |
558 | BEGIN (VERS_START); | |
559 | } | |
560 | ||
561 | void | |
1579bae1 | 562 | ldlex_version_file (void) |
252b5132 RH |
563 | { |
564 | *(state_stack_p)++ = yy_start; | |
565 | BEGIN (VERS_SCRIPT); | |
566 | } | |
567 | ||
568 | void | |
1579bae1 | 569 | ldlex_defsym (void) |
252b5132 RH |
570 | { |
571 | *(state_stack_p)++ = yy_start; | |
572 | BEGIN (DEFSYMEXP); | |
573 | } | |
1579bae1 | 574 | |
252b5132 | 575 | void |
1579bae1 | 576 | ldlex_expression (void) |
252b5132 RH |
577 | { |
578 | *(state_stack_p)++ = yy_start; | |
579 | BEGIN (EXPRESSION); | |
580 | } | |
581 | ||
582 | void | |
1579bae1 | 583 | ldlex_both (void) |
252b5132 RH |
584 | { |
585 | *(state_stack_p)++ = yy_start; | |
586 | BEGIN (BOTH); | |
587 | } | |
588 | ||
589 | void | |
1579bae1 | 590 | ldlex_popstate (void) |
252b5132 RH |
591 | { |
592 | yy_start = *(--state_stack_p); | |
593 | } | |
594 | \f | |
595 | ||
596 | /* Place up to MAX_SIZE characters in BUF and return in *RESULT | |
597 | either the number of characters read, or 0 to indicate EOF. */ | |
598 | ||
599 | static void | |
1579bae1 | 600 | yy_input (char *buf, int *result, int max_size) |
252b5132 | 601 | { |
1579bae1 | 602 | *result = 0; |
731e28d8 | 603 | if (YY_CURRENT_BUFFER->yy_input_file) |
252b5132 RH |
604 | { |
605 | if (yyin) | |
606 | { | |
1579bae1 AM |
607 | *result = fread (buf, 1, max_size, yyin); |
608 | if (*result < max_size && ferror (yyin)) | |
252b5132 RH |
609 | einfo ("%F%P: read in flex scanner failed\n"); |
610 | } | |
611 | } | |
612 | } | |
613 | ||
614 | /* Eat the rest of a C-style comment. */ | |
615 | ||
616 | static void | |
1579bae1 | 617 | comment (void) |
252b5132 RH |
618 | { |
619 | int c; | |
620 | ||
621 | while (1) | |
622 | { | |
623 | c = input(); | |
1579bae1 | 624 | while (c != '*' && c != EOF) |
252b5132 RH |
625 | { |
626 | if (c == '\n') | |
627 | lineno++; | |
628 | c = input(); | |
629 | } | |
630 | ||
631 | if (c == '*') | |
632 | { | |
633 | c = input(); | |
634 | while (c == '*') | |
635 | c = input(); | |
636 | if (c == '/') | |
637 | break; /* found the end */ | |
638 | } | |
639 | ||
640 | if (c == '\n') | |
641 | lineno++; | |
642 | ||
643 | if (c == EOF) | |
644 | { | |
645 | einfo( "%F%P: EOF in comment\n"); | |
646 | break; | |
647 | } | |
648 | } | |
649 | } | |
650 | ||
651 | /* Warn the user about a garbage character WHAT in the input | |
652 | in context WHERE. */ | |
653 | ||
654 | static void | |
1579bae1 | 655 | lex_warn_invalid (char *where, char *what) |
252b5132 RH |
656 | { |
657 | char buf[5]; | |
658 | ||
659 | /* If we have found an input file whose format we do not recognize, | |
660 | and we are therefore treating it as a linker script, and we find | |
661 | an invalid character, then most likely this is a real object file | |
662 | of some different format. Treat it as such. */ | |
663 | if (ldfile_assumed_script) | |
664 | { | |
665 | bfd_set_error (bfd_error_file_not_recognized); | |
666 | einfo ("%F%s: file not recognized: %E\n", ldfile_input_filename); | |
667 | } | |
668 | ||
3882b010 | 669 | if (! ISPRINT (*what)) |
252b5132 RH |
670 | { |
671 | sprintf (buf, "\\%03o", (unsigned int) *what); | |
672 | what = buf; | |
673 | } | |
674 | ||
675 | einfo ("%P:%S: ignoring invalid character `%s'%s\n", what, where); | |
676 | } |