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1 | /* Demangler for GNU C++ | |
2 | Copyright 1989, 91, 94, 95, 96, 97, 1998 Free Software Foundation, Inc. | |
3 | Written by James Clark (jjc@jclark.uucp) | |
4 | Rewritten by Fred Fish (fnf@cygnus.com) for ARM and Lucid demangling | |
5 | ||
6 | This file is part of the libiberty library. | |
7 | Libiberty is free software; you can redistribute it and/or | |
8 | modify it under the terms of the GNU Library General Public | |
9 | License as published by the Free Software Foundation; either | |
10 | version 2 of the License, or (at your option) any later version. | |
11 | ||
12 | Libiberty is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | Library General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU Library General Public | |
18 | License along with libiberty; see the file COPYING.LIB. If | |
19 | not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
20 | Boston, MA 02111-1307, USA. */ | |
21 | ||
22 | /* This file exports two functions; cplus_mangle_opname and cplus_demangle. | |
23 | ||
24 | This file imports xmalloc and xrealloc, which are like malloc and | |
25 | realloc except that they generate a fatal error if there is no | |
26 | available memory. */ | |
27 | ||
28 | /* This file lives in both GCC and libiberty. When making changes, please | |
29 | try not to break either. */ | |
30 | ||
31 | #ifdef HAVE_CONFIG_H | |
32 | #include "config.h" | |
33 | #endif | |
34 | ||
35 | #include <ctype.h> | |
36 | #include <sys/types.h> | |
37 | #include <string.h> | |
38 | #include <stdio.h> | |
39 | ||
40 | #ifdef HAVE_STDLIB_H | |
41 | #include <stdlib.h> | |
42 | #else | |
43 | char * malloc (); | |
44 | char * realloc (); | |
45 | #endif | |
46 | ||
47 | #include <demangle.h> | |
48 | #undef CURRENT_DEMANGLING_STYLE | |
49 | #define CURRENT_DEMANGLING_STYLE work->options | |
50 | ||
51 | extern char *xmalloc PARAMS((unsigned)); | |
52 | extern char *xrealloc PARAMS((char *, unsigned)); | |
53 | ||
54 | static const char *mystrstr PARAMS ((const char *, const char *)); | |
55 | ||
56 | static const char * | |
57 | mystrstr (s1, s2) | |
58 | const char *s1, *s2; | |
59 | { | |
60 | register const char *p = s1; | |
61 | register int len = strlen (s2); | |
62 | ||
63 | for (; (p = strchr (p, *s2)) != 0; p++) | |
64 | { | |
65 | if (strncmp (p, s2, len) == 0) | |
66 | { | |
67 | return (p); | |
68 | } | |
69 | } | |
70 | return (0); | |
71 | } | |
72 | ||
73 | /* In order to allow a single demangler executable to demangle strings | |
74 | using various common values of CPLUS_MARKER, as well as any specific | |
75 | one set at compile time, we maintain a string containing all the | |
76 | commonly used ones, and check to see if the marker we are looking for | |
77 | is in that string. CPLUS_MARKER is usually '$' on systems where the | |
78 | assembler can deal with that. Where the assembler can't, it's usually | |
79 | '.' (but on many systems '.' is used for other things). We put the | |
80 | current defined CPLUS_MARKER first (which defaults to '$'), followed | |
81 | by the next most common value, followed by an explicit '$' in case | |
82 | the value of CPLUS_MARKER is not '$'. | |
83 | ||
84 | We could avoid this if we could just get g++ to tell us what the actual | |
85 | cplus marker character is as part of the debug information, perhaps by | |
86 | ensuring that it is the character that terminates the gcc<n>_compiled | |
87 | marker symbol (FIXME). */ | |
88 | ||
89 | #if !defined (CPLUS_MARKER) | |
90 | #define CPLUS_MARKER '$' | |
91 | #endif | |
92 | ||
93 | enum demangling_styles current_demangling_style = gnu_demangling; | |
94 | ||
95 | static char cplus_markers[] = { CPLUS_MARKER, '.', '$', '\0' }; | |
96 | ||
97 | void | |
98 | set_cplus_marker_for_demangling (ch) | |
99 | int ch; | |
100 | { | |
101 | cplus_markers[0] = ch; | |
102 | } | |
103 | ||
104 | typedef struct string /* Beware: these aren't required to be */ | |
105 | { /* '\0' terminated. */ | |
106 | char *b; /* pointer to start of string */ | |
107 | char *p; /* pointer after last character */ | |
108 | char *e; /* pointer after end of allocated space */ | |
109 | } string; | |
110 | ||
111 | /* Stuff that is shared between sub-routines. | |
112 | Using a shared structure allows cplus_demangle to be reentrant. */ | |
113 | ||
114 | struct work_stuff | |
115 | { | |
116 | int options; | |
117 | char **typevec; | |
118 | char **ktypevec; | |
119 | char **btypevec; | |
120 | int numk; | |
121 | int numb; | |
122 | int ksize; | |
123 | int bsize; | |
124 | int ntypes; | |
125 | int typevec_size; | |
126 | int constructor; | |
127 | int destructor; | |
128 | int static_type; /* A static member function */ | |
129 | int const_type; /* A const member function */ | |
130 | int volatile_type; /* A volatile member function */ | |
131 | char **tmpl_argvec; /* Template function arguments. */ | |
132 | int ntmpl_args; /* The number of template function arguments. */ | |
133 | int forgetting_types; /* Nonzero if we are not remembering the types | |
134 | we see. */ | |
135 | string* previous_argument; /* The last function argument demangled. */ | |
136 | int nrepeats; /* The number of times to repeat the previous | |
137 | argument. */ | |
138 | }; | |
139 | ||
140 | #define PRINT_ANSI_QUALIFIERS (work -> options & DMGL_ANSI) | |
141 | #define PRINT_ARG_TYPES (work -> options & DMGL_PARAMS) | |
142 | ||
143 | static const struct optable | |
144 | { | |
145 | const char *in; | |
146 | const char *out; | |
147 | int flags; | |
148 | } optable[] = { | |
149 | {"nw", " new", DMGL_ANSI}, /* new (1.92, ansi) */ | |
150 | {"dl", " delete", DMGL_ANSI}, /* new (1.92, ansi) */ | |
151 | {"new", " new", 0}, /* old (1.91, and 1.x) */ | |
152 | {"delete", " delete", 0}, /* old (1.91, and 1.x) */ | |
153 | {"vn", " new []", DMGL_ANSI}, /* GNU, pending ansi */ | |
154 | {"vd", " delete []", DMGL_ANSI}, /* GNU, pending ansi */ | |
155 | {"as", "=", DMGL_ANSI}, /* ansi */ | |
156 | {"ne", "!=", DMGL_ANSI}, /* old, ansi */ | |
157 | {"eq", "==", DMGL_ANSI}, /* old, ansi */ | |
158 | {"ge", ">=", DMGL_ANSI}, /* old, ansi */ | |
159 | {"gt", ">", DMGL_ANSI}, /* old, ansi */ | |
160 | {"le", "<=", DMGL_ANSI}, /* old, ansi */ | |
161 | {"lt", "<", DMGL_ANSI}, /* old, ansi */ | |
162 | {"plus", "+", 0}, /* old */ | |
163 | {"pl", "+", DMGL_ANSI}, /* ansi */ | |
164 | {"apl", "+=", DMGL_ANSI}, /* ansi */ | |
165 | {"minus", "-", 0}, /* old */ | |
166 | {"mi", "-", DMGL_ANSI}, /* ansi */ | |
167 | {"ami", "-=", DMGL_ANSI}, /* ansi */ | |
168 | {"mult", "*", 0}, /* old */ | |
169 | {"ml", "*", DMGL_ANSI}, /* ansi */ | |
170 | {"amu", "*=", DMGL_ANSI}, /* ansi (ARM/Lucid) */ | |
171 | {"aml", "*=", DMGL_ANSI}, /* ansi (GNU/g++) */ | |
172 | {"convert", "+", 0}, /* old (unary +) */ | |
173 | {"negate", "-", 0}, /* old (unary -) */ | |
174 | {"trunc_mod", "%", 0}, /* old */ | |
175 | {"md", "%", DMGL_ANSI}, /* ansi */ | |
176 | {"amd", "%=", DMGL_ANSI}, /* ansi */ | |
177 | {"trunc_div", "/", 0}, /* old */ | |
178 | {"dv", "/", DMGL_ANSI}, /* ansi */ | |
179 | {"adv", "/=", DMGL_ANSI}, /* ansi */ | |
180 | {"truth_andif", "&&", 0}, /* old */ | |
181 | {"aa", "&&", DMGL_ANSI}, /* ansi */ | |
182 | {"truth_orif", "||", 0}, /* old */ | |
183 | {"oo", "||", DMGL_ANSI}, /* ansi */ | |
184 | {"truth_not", "!", 0}, /* old */ | |
185 | {"nt", "!", DMGL_ANSI}, /* ansi */ | |
186 | {"postincrement","++", 0}, /* old */ | |
187 | {"pp", "++", DMGL_ANSI}, /* ansi */ | |
188 | {"postdecrement","--", 0}, /* old */ | |
189 | {"mm", "--", DMGL_ANSI}, /* ansi */ | |
190 | {"bit_ior", "|", 0}, /* old */ | |
191 | {"or", "|", DMGL_ANSI}, /* ansi */ | |
192 | {"aor", "|=", DMGL_ANSI}, /* ansi */ | |
193 | {"bit_xor", "^", 0}, /* old */ | |
194 | {"er", "^", DMGL_ANSI}, /* ansi */ | |
195 | {"aer", "^=", DMGL_ANSI}, /* ansi */ | |
196 | {"bit_and", "&", 0}, /* old */ | |
197 | {"ad", "&", DMGL_ANSI}, /* ansi */ | |
198 | {"aad", "&=", DMGL_ANSI}, /* ansi */ | |
199 | {"bit_not", "~", 0}, /* old */ | |
200 | {"co", "~", DMGL_ANSI}, /* ansi */ | |
201 | {"call", "()", 0}, /* old */ | |
202 | {"cl", "()", DMGL_ANSI}, /* ansi */ | |
203 | {"alshift", "<<", 0}, /* old */ | |
204 | {"ls", "<<", DMGL_ANSI}, /* ansi */ | |
205 | {"als", "<<=", DMGL_ANSI}, /* ansi */ | |
206 | {"arshift", ">>", 0}, /* old */ | |
207 | {"rs", ">>", DMGL_ANSI}, /* ansi */ | |
208 | {"ars", ">>=", DMGL_ANSI}, /* ansi */ | |
209 | {"component", "->", 0}, /* old */ | |
210 | {"pt", "->", DMGL_ANSI}, /* ansi; Lucid C++ form */ | |
211 | {"rf", "->", DMGL_ANSI}, /* ansi; ARM/GNU form */ | |
212 | {"indirect", "*", 0}, /* old */ | |
213 | {"method_call", "->()", 0}, /* old */ | |
214 | {"addr", "&", 0}, /* old (unary &) */ | |
215 | {"array", "[]", 0}, /* old */ | |
216 | {"vc", "[]", DMGL_ANSI}, /* ansi */ | |
217 | {"compound", ", ", 0}, /* old */ | |
218 | {"cm", ", ", DMGL_ANSI}, /* ansi */ | |
219 | {"cond", "?:", 0}, /* old */ | |
220 | {"cn", "?:", DMGL_ANSI}, /* pseudo-ansi */ | |
221 | {"max", ">?", 0}, /* old */ | |
222 | {"mx", ">?", DMGL_ANSI}, /* pseudo-ansi */ | |
223 | {"min", "<?", 0}, /* old */ | |
224 | {"mn", "<?", DMGL_ANSI}, /* pseudo-ansi */ | |
225 | {"nop", "", 0}, /* old (for operator=) */ | |
226 | {"rm", "->*", DMGL_ANSI}, /* ansi */ | |
227 | {"sz", "sizeof ", DMGL_ANSI} /* pseudo-ansi */ | |
228 | }; | |
229 | ||
230 | /* These values are used to indicate the various type varieties. | |
231 | They are all non-zero so that they can be used as `success' | |
232 | values. */ | |
233 | typedef enum type_kind_t | |
234 | { | |
235 | tk_none, | |
236 | tk_pointer, | |
237 | tk_integral, | |
238 | tk_bool, | |
239 | tk_char, | |
240 | tk_real | |
241 | } type_kind_t; | |
242 | ||
243 | #define STRING_EMPTY(str) ((str) -> b == (str) -> p) | |
244 | #define PREPEND_BLANK(str) {if (!STRING_EMPTY(str)) \ | |
245 | string_prepend(str, " ");} | |
246 | #define APPEND_BLANK(str) {if (!STRING_EMPTY(str)) \ | |
247 | string_append(str, " ");} | |
248 | #define LEN_STRING(str) ( (STRING_EMPTY(str))?0:((str)->p - (str)->b)) | |
249 | ||
250 | /* The scope separator appropriate for the language being demangled. */ | |
251 | #define SCOPE_STRING(work) "::" | |
252 | ||
253 | #define ARM_VTABLE_STRING "__vtbl__" /* Lucid/ARM virtual table prefix */ | |
254 | #define ARM_VTABLE_STRLEN 8 /* strlen (ARM_VTABLE_STRING) */ | |
255 | ||
256 | /* Prototypes for local functions */ | |
257 | ||
258 | static char * | |
259 | mop_up PARAMS ((struct work_stuff *, string *, int)); | |
260 | ||
261 | static void | |
262 | squangle_mop_up PARAMS ((struct work_stuff *)); | |
263 | ||
264 | #if 0 | |
265 | static int | |
266 | demangle_method_args PARAMS ((struct work_stuff *, const char **, string *)); | |
267 | #endif | |
268 | ||
269 | static char * | |
270 | internal_cplus_demangle PARAMS ((struct work_stuff *, const char *)); | |
271 | ||
272 | static int | |
273 | demangle_template_template_parm PARAMS ((struct work_stuff *work, | |
274 | const char **, string *)); | |
275 | ||
276 | static int | |
277 | demangle_template PARAMS ((struct work_stuff *work, const char **, string *, | |
278 | string *, int, int)); | |
279 | ||
280 | static int | |
281 | arm_pt PARAMS ((struct work_stuff *, const char *, int, const char **, | |
282 | const char **)); | |
283 | ||
284 | static void | |
285 | demangle_arm_pt PARAMS ((struct work_stuff *, const char **, int, string *)); | |
286 | ||
287 | static int | |
288 | demangle_class_name PARAMS ((struct work_stuff *, const char **, string *)); | |
289 | ||
290 | static int | |
291 | demangle_qualified PARAMS ((struct work_stuff *, const char **, string *, | |
292 | int, int)); | |
293 | ||
294 | static int | |
295 | demangle_class PARAMS ((struct work_stuff *, const char **, string *)); | |
296 | ||
297 | static int | |
298 | demangle_fund_type PARAMS ((struct work_stuff *, const char **, string *)); | |
299 | ||
300 | static int | |
301 | demangle_signature PARAMS ((struct work_stuff *, const char **, string *)); | |
302 | ||
303 | static int | |
304 | demangle_prefix PARAMS ((struct work_stuff *, const char **, string *)); | |
305 | ||
306 | static int | |
307 | gnu_special PARAMS ((struct work_stuff *, const char **, string *)); | |
308 | ||
309 | static int | |
310 | arm_special PARAMS ((const char **, string *)); | |
311 | ||
312 | static void | |
313 | string_need PARAMS ((string *, int)); | |
314 | ||
315 | static void | |
316 | string_delete PARAMS ((string *)); | |
317 | ||
318 | static void | |
319 | string_init PARAMS ((string *)); | |
320 | ||
321 | static void | |
322 | string_clear PARAMS ((string *)); | |
323 | ||
324 | #if 0 | |
325 | static int | |
326 | string_empty PARAMS ((string *)); | |
327 | #endif | |
328 | ||
329 | static void | |
330 | string_append PARAMS ((string *, const char *)); | |
331 | ||
332 | static void | |
333 | string_appends PARAMS ((string *, string *)); | |
334 | ||
335 | static void | |
336 | string_appendn PARAMS ((string *, const char *, int)); | |
337 | ||
338 | static void | |
339 | string_prepend PARAMS ((string *, const char *)); | |
340 | ||
341 | static void | |
342 | string_prependn PARAMS ((string *, const char *, int)); | |
343 | ||
344 | static int | |
345 | get_count PARAMS ((const char **, int *)); | |
346 | ||
347 | static int | |
348 | consume_count PARAMS ((const char **)); | |
349 | ||
350 | static int | |
351 | consume_count_with_underscores PARAMS ((const char**)); | |
352 | ||
353 | static int | |
354 | demangle_args PARAMS ((struct work_stuff *, const char **, string *)); | |
355 | ||
356 | static int | |
357 | demangle_nested_args PARAMS ((struct work_stuff*, const char**, string*)); | |
358 | ||
359 | static int | |
360 | do_type PARAMS ((struct work_stuff *, const char **, string *)); | |
361 | ||
362 | static int | |
363 | do_arg PARAMS ((struct work_stuff *, const char **, string *)); | |
364 | ||
365 | static void | |
366 | demangle_function_name PARAMS ((struct work_stuff *, const char **, string *, | |
367 | const char *)); | |
368 | ||
369 | static void | |
370 | remember_type PARAMS ((struct work_stuff *, const char *, int)); | |
371 | ||
372 | static void | |
373 | remember_Btype PARAMS ((struct work_stuff *, const char *, int, int)); | |
374 | ||
375 | static int | |
376 | register_Btype PARAMS ((struct work_stuff *)); | |
377 | ||
378 | static void | |
379 | remember_Ktype PARAMS ((struct work_stuff *, const char *, int)); | |
380 | ||
381 | static void | |
382 | forget_types PARAMS ((struct work_stuff *)); | |
383 | ||
384 | static void | |
385 | forget_B_and_K_types PARAMS ((struct work_stuff *)); | |
386 | ||
387 | static void | |
388 | string_prepends PARAMS ((string *, string *)); | |
389 | ||
390 | static int | |
391 | demangle_template_value_parm PARAMS ((struct work_stuff*, const char**, | |
392 | string*, type_kind_t)); | |
393 | ||
394 | /* Translate count to integer, consuming tokens in the process. | |
395 | Conversion terminates on the first non-digit character. | |
396 | Trying to consume something that isn't a count results in | |
397 | no consumption of input and a return of 0. */ | |
398 | ||
399 | static int | |
400 | consume_count (type) | |
401 | const char **type; | |
402 | { | |
403 | int count = 0; | |
404 | ||
405 | while (isdigit (**type)) | |
406 | { | |
407 | count *= 10; | |
408 | count += **type - '0'; | |
409 | (*type)++; | |
410 | } | |
411 | return (count); | |
412 | } | |
413 | ||
414 | ||
415 | /* Like consume_count, but for counts that are preceded and followed | |
416 | by '_' if they are greater than 10. Also, -1 is returned for | |
417 | failure, since 0 can be a valid value. */ | |
418 | ||
419 | static int | |
420 | consume_count_with_underscores (mangled) | |
421 | const char **mangled; | |
422 | { | |
423 | int idx; | |
424 | ||
425 | if (**mangled == '_') | |
426 | { | |
427 | (*mangled)++; | |
428 | if (!isdigit (**mangled)) | |
429 | return -1; | |
430 | ||
431 | idx = consume_count (mangled); | |
432 | if (**mangled != '_') | |
433 | /* The trailing underscore was missing. */ | |
434 | return -1; | |
435 | ||
436 | (*mangled)++; | |
437 | } | |
438 | else | |
439 | { | |
440 | if (**mangled < '0' || **mangled > '9') | |
441 | return -1; | |
442 | ||
443 | idx = **mangled - '0'; | |
444 | (*mangled)++; | |
445 | } | |
446 | ||
447 | return idx; | |
448 | } | |
449 | ||
450 | int | |
451 | cplus_demangle_opname (opname, result, options) | |
452 | const char *opname; | |
453 | char *result; | |
454 | int options; | |
455 | { | |
456 | int len, len1, ret; | |
457 | string type; | |
458 | struct work_stuff work[1]; | |
459 | const char *tem; | |
460 | ||
461 | len = strlen(opname); | |
462 | result[0] = '\0'; | |
463 | ret = 0; | |
464 | memset ((char *) work, 0, sizeof (work)); | |
465 | work->options = options; | |
466 | ||
467 | if (opname[0] == '_' && opname[1] == '_' | |
468 | && opname[2] == 'o' && opname[3] == 'p') | |
469 | { | |
470 | /* ANSI. */ | |
471 | /* type conversion operator. */ | |
472 | tem = opname + 4; | |
473 | if (do_type (work, &tem, &type)) | |
474 | { | |
475 | strcat (result, "operator "); | |
476 | strncat (result, type.b, type.p - type.b); | |
477 | string_delete (&type); | |
478 | ret = 1; | |
479 | } | |
480 | } | |
481 | else if (opname[0] == '_' && opname[1] == '_' | |
482 | && opname[2] >= 'a' && opname[2] <= 'z' | |
483 | && opname[3] >= 'a' && opname[3] <= 'z') | |
484 | { | |
485 | if (opname[4] == '\0') | |
486 | { | |
487 | /* Operator. */ | |
488 | size_t i; | |
489 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) | |
490 | { | |
491 | if (strlen (optable[i].in) == 2 | |
492 | && memcmp (optable[i].in, opname + 2, 2) == 0) | |
493 | { | |
494 | strcat (result, "operator"); | |
495 | strcat (result, optable[i].out); | |
496 | ret = 1; | |
497 | break; | |
498 | } | |
499 | } | |
500 | } | |
501 | else | |
502 | { | |
503 | if (opname[2] == 'a' && opname[5] == '\0') | |
504 | { | |
505 | /* Assignment. */ | |
506 | size_t i; | |
507 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) | |
508 | { | |
509 | if (strlen (optable[i].in) == 3 | |
510 | && memcmp (optable[i].in, opname + 2, 3) == 0) | |
511 | { | |
512 | strcat (result, "operator"); | |
513 | strcat (result, optable[i].out); | |
514 | ret = 1; | |
515 | break; | |
516 | } | |
517 | } | |
518 | } | |
519 | } | |
520 | } | |
521 | else if (len >= 3 | |
522 | && opname[0] == 'o' | |
523 | && opname[1] == 'p' | |
524 | && strchr (cplus_markers, opname[2]) != NULL) | |
525 | { | |
526 | /* see if it's an assignment expression */ | |
527 | if (len >= 10 /* op$assign_ */ | |
528 | && memcmp (opname + 3, "assign_", 7) == 0) | |
529 | { | |
530 | size_t i; | |
531 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) | |
532 | { | |
533 | len1 = len - 10; | |
534 | if (strlen (optable[i].in) == len1 | |
535 | && memcmp (optable[i].in, opname + 10, len1) == 0) | |
536 | { | |
537 | strcat (result, "operator"); | |
538 | strcat (result, optable[i].out); | |
539 | strcat (result, "="); | |
540 | ret = 1; | |
541 | break; | |
542 | } | |
543 | } | |
544 | } | |
545 | else | |
546 | { | |
547 | size_t i; | |
548 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) | |
549 | { | |
550 | len1 = len - 3; | |
551 | if (strlen (optable[i].in) == len1 | |
552 | && memcmp (optable[i].in, opname + 3, len1) == 0) | |
553 | { | |
554 | strcat (result, "operator"); | |
555 | strcat (result, optable[i].out); | |
556 | ret = 1; | |
557 | break; | |
558 | } | |
559 | } | |
560 | } | |
561 | } | |
562 | else if (len >= 5 && memcmp (opname, "type", 4) == 0 | |
563 | && strchr (cplus_markers, opname[4]) != NULL) | |
564 | { | |
565 | /* type conversion operator */ | |
566 | tem = opname + 5; | |
567 | if (do_type (work, &tem, &type)) | |
568 | { | |
569 | strcat (result, "operator "); | |
570 | strncat (result, type.b, type.p - type.b); | |
571 | string_delete (&type); | |
572 | ret = 1; | |
573 | } | |
574 | } | |
575 | squangle_mop_up (work); | |
576 | return ret; | |
577 | ||
578 | } | |
579 | /* Takes operator name as e.g. "++" and returns mangled | |
580 | operator name (e.g. "postincrement_expr"), or NULL if not found. | |
581 | ||
582 | If OPTIONS & DMGL_ANSI == 1, return the ANSI name; | |
583 | if OPTIONS & DMGL_ANSI == 0, return the old GNU name. */ | |
584 | ||
585 | const char * | |
586 | cplus_mangle_opname (opname, options) | |
587 | const char *opname; | |
588 | int options; | |
589 | { | |
590 | size_t i; | |
591 | int len; | |
592 | ||
593 | len = strlen (opname); | |
594 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) | |
595 | { | |
596 | if (strlen (optable[i].out) == len | |
597 | && (options & DMGL_ANSI) == (optable[i].flags & DMGL_ANSI) | |
598 | && memcmp (optable[i].out, opname, len) == 0) | |
599 | return optable[i].in; | |
600 | } | |
601 | return (0); | |
602 | } | |
603 | ||
604 | /* char *cplus_demangle (const char *mangled, int options) | |
605 | ||
606 | If MANGLED is a mangled function name produced by GNU C++, then | |
607 | a pointer to a malloced string giving a C++ representation | |
608 | of the name will be returned; otherwise NULL will be returned. | |
609 | It is the caller's responsibility to free the string which | |
610 | is returned. | |
611 | ||
612 | The OPTIONS arg may contain one or more of the following bits: | |
613 | ||
614 | DMGL_ANSI ANSI qualifiers such as `const' and `void' are | |
615 | included. | |
616 | DMGL_PARAMS Function parameters are included. | |
617 | ||
618 | For example, | |
619 | ||
620 | cplus_demangle ("foo__1Ai", DMGL_PARAMS) => "A::foo(int)" | |
621 | cplus_demangle ("foo__1Ai", DMGL_PARAMS | DMGL_ANSI) => "A::foo(int)" | |
622 | cplus_demangle ("foo__1Ai", 0) => "A::foo" | |
623 | ||
624 | cplus_demangle ("foo__1Afe", DMGL_PARAMS) => "A::foo(float,...)" | |
625 | cplus_demangle ("foo__1Afe", DMGL_PARAMS | DMGL_ANSI)=> "A::foo(float,...)" | |
626 | cplus_demangle ("foo__1Afe", 0) => "A::foo" | |
627 | ||
628 | Note that any leading underscores, or other such characters prepended by | |
629 | the compilation system, are presumed to have already been stripped from | |
630 | MANGLED. */ | |
631 | ||
632 | char * | |
633 | cplus_demangle (mangled, options) | |
634 | const char *mangled; | |
635 | int options; | |
636 | { | |
637 | char *ret; | |
638 | struct work_stuff work[1]; | |
639 | memset ((char *) work, 0, sizeof (work)); | |
640 | work -> options = options; | |
641 | if ((work -> options & DMGL_STYLE_MASK) == 0) | |
642 | work -> options |= (int) current_demangling_style & DMGL_STYLE_MASK; | |
643 | ||
644 | ret = internal_cplus_demangle (work, mangled); | |
645 | squangle_mop_up (work); | |
646 | return (ret); | |
647 | } | |
648 | ||
649 | ||
650 | /* This function performs most of what cplus_demangle use to do, but | |
651 | to be able to demangle a name with a B, K or n code, we need to | |
652 | have a longer term memory of what types have been seen. The original | |
653 | now intializes and cleans up the squangle code info, while internal | |
654 | calls go directly to this routine to avoid resetting that info. */ | |
655 | ||
656 | static char * | |
657 | internal_cplus_demangle (work, mangled) | |
658 | struct work_stuff *work; | |
659 | const char *mangled; | |
660 | { | |
661 | ||
662 | string decl; | |
663 | int success = 0; | |
664 | char *demangled = NULL; | |
665 | int s1,s2,s3,s4; | |
666 | int saved_volatile_type; | |
667 | s1 = work->constructor; | |
668 | s2 = work->destructor; | |
669 | s3 = work->static_type; | |
670 | s4 = work->const_type; | |
671 | saved_volatile_type = work->volatile_type; | |
672 | work->constructor = work->destructor = 0; | |
673 | work->static_type = work->const_type = 0; | |
674 | work->volatile_type = 0; | |
675 | ||
676 | if ((mangled != NULL) && (*mangled != '\0')) | |
677 | { | |
678 | string_init (&decl); | |
679 | ||
680 | /* First check to see if gnu style demangling is active and if the | |
681 | string to be demangled contains a CPLUS_MARKER. If so, attempt to | |
682 | recognize one of the gnu special forms rather than looking for a | |
683 | standard prefix. In particular, don't worry about whether there | |
684 | is a "__" string in the mangled string. Consider "_$_5__foo" for | |
685 | example. */ | |
686 | ||
687 | if ((AUTO_DEMANGLING || GNU_DEMANGLING)) | |
688 | { | |
689 | success = gnu_special (work, &mangled, &decl); | |
690 | } | |
691 | if (!success) | |
692 | { | |
693 | success = demangle_prefix (work, &mangled, &decl); | |
694 | } | |
695 | if (success && (*mangled != '\0')) | |
696 | { | |
697 | success = demangle_signature (work, &mangled, &decl); | |
698 | } | |
699 | if (work->constructor == 2) | |
700 | { | |
701 | string_prepend (&decl, "global constructors keyed to "); | |
702 | work->constructor = 0; | |
703 | } | |
704 | else if (work->destructor == 2) | |
705 | { | |
706 | string_prepend (&decl, "global destructors keyed to "); | |
707 | work->destructor = 0; | |
708 | } | |
709 | demangled = mop_up (work, &decl, success); | |
710 | } | |
711 | work->constructor = s1; | |
712 | work->destructor = s2; | |
713 | work->static_type = s3; | |
714 | work->const_type = s4; | |
715 | work->volatile_type = saved_volatile_type; | |
716 | return (demangled); | |
717 | } | |
718 | ||
719 | ||
720 | /* Clear out and squangling related storage */ | |
721 | static void | |
722 | squangle_mop_up (work) | |
723 | struct work_stuff *work; | |
724 | { | |
725 | /* clean up the B and K type mangling types. */ | |
726 | forget_B_and_K_types (work); | |
727 | if (work -> btypevec != NULL) | |
728 | { | |
729 | free ((char *) work -> btypevec); | |
730 | } | |
731 | if (work -> ktypevec != NULL) | |
732 | { | |
733 | free ((char *) work -> ktypevec); | |
734 | } | |
735 | } | |
736 | ||
737 | /* Clear out any mangled storage */ | |
738 | ||
739 | static char * | |
740 | mop_up (work, declp, success) | |
741 | struct work_stuff *work; | |
742 | string *declp; | |
743 | int success; | |
744 | { | |
745 | char *demangled = NULL; | |
746 | ||
747 | /* Discard the remembered types, if any. */ | |
748 | ||
749 | forget_types (work); | |
750 | if (work -> typevec != NULL) | |
751 | { | |
752 | free ((char *) work -> typevec); | |
753 | work -> typevec = NULL; | |
754 | } | |
755 | if (work->tmpl_argvec) | |
756 | { | |
757 | int i; | |
758 | ||
759 | for (i = 0; i < work->ntmpl_args; i++) | |
760 | if (work->tmpl_argvec[i]) | |
761 | free ((char*) work->tmpl_argvec[i]); | |
762 | ||
763 | free ((char*) work->tmpl_argvec); | |
764 | work->tmpl_argvec = NULL; | |
765 | } | |
766 | if (work->previous_argument) | |
767 | { | |
768 | string_delete (work->previous_argument); | |
769 | free ((char*) work->previous_argument); | |
770 | } | |
771 | ||
772 | /* If demangling was successful, ensure that the demangled string is null | |
773 | terminated and return it. Otherwise, free the demangling decl. */ | |
774 | ||
775 | if (!success) | |
776 | { | |
777 | string_delete (declp); | |
778 | } | |
779 | else | |
780 | { | |
781 | string_appendn (declp, "", 1); | |
782 | demangled = declp -> b; | |
783 | } | |
784 | return (demangled); | |
785 | } | |
786 | ||
787 | /* | |
788 | ||
789 | LOCAL FUNCTION | |
790 | ||
791 | demangle_signature -- demangle the signature part of a mangled name | |
792 | ||
793 | SYNOPSIS | |
794 | ||
795 | static int | |
796 | demangle_signature (struct work_stuff *work, const char **mangled, | |
797 | string *declp); | |
798 | ||
799 | DESCRIPTION | |
800 | ||
801 | Consume and demangle the signature portion of the mangled name. | |
802 | ||
803 | DECLP is the string where demangled output is being built. At | |
804 | entry it contains the demangled root name from the mangled name | |
805 | prefix. I.E. either a demangled operator name or the root function | |
806 | name. In some special cases, it may contain nothing. | |
807 | ||
808 | *MANGLED points to the current unconsumed location in the mangled | |
809 | name. As tokens are consumed and demangling is performed, the | |
810 | pointer is updated to continuously point at the next token to | |
811 | be consumed. | |
812 | ||
813 | Demangling GNU style mangled names is nasty because there is no | |
814 | explicit token that marks the start of the outermost function | |
815 | argument list. */ | |
816 | ||
817 | static int | |
818 | demangle_signature (work, mangled, declp) | |
819 | struct work_stuff *work; | |
820 | const char **mangled; | |
821 | string *declp; | |
822 | { | |
823 | int success = 1; | |
824 | int func_done = 0; | |
825 | int expect_func = 0; | |
826 | int expect_return_type = 0; | |
827 | const char *oldmangled = NULL; | |
828 | string trawname; | |
829 | string tname; | |
830 | ||
831 | while (success && (**mangled != '\0')) | |
832 | { | |
833 | switch (**mangled) | |
834 | { | |
835 | case 'Q': | |
836 | oldmangled = *mangled; | |
837 | success = demangle_qualified (work, mangled, declp, 1, 0); | |
838 | if (success) | |
839 | remember_type (work, oldmangled, *mangled - oldmangled); | |
840 | if (AUTO_DEMANGLING || GNU_DEMANGLING) | |
841 | expect_func = 1; | |
842 | oldmangled = NULL; | |
843 | break; | |
844 | ||
845 | case 'K': | |
846 | oldmangled = *mangled; | |
847 | success = demangle_qualified (work, mangled, declp, 1, 0); | |
848 | if (AUTO_DEMANGLING || GNU_DEMANGLING) | |
849 | { | |
850 | expect_func = 1; | |
851 | } | |
852 | oldmangled = NULL; | |
853 | break; | |
854 | ||
855 | case 'S': | |
856 | /* Static member function */ | |
857 | if (oldmangled == NULL) | |
858 | { | |
859 | oldmangled = *mangled; | |
860 | } | |
861 | (*mangled)++; | |
862 | work -> static_type = 1; | |
863 | break; | |
864 | ||
865 | case 'C': | |
866 | case 'V': | |
867 | if (**mangled == 'C') | |
868 | work -> const_type = 1; | |
869 | else | |
870 | work->volatile_type = 1; | |
871 | ||
872 | /* a qualified member function */ | |
873 | if (oldmangled == NULL) | |
874 | oldmangled = *mangled; | |
875 | (*mangled)++; | |
876 | break; | |
877 | ||
878 | case '0': case '1': case '2': case '3': case '4': | |
879 | case '5': case '6': case '7': case '8': case '9': | |
880 | if (oldmangled == NULL) | |
881 | { | |
882 | oldmangled = *mangled; | |
883 | } | |
884 | success = demangle_class (work, mangled, declp); | |
885 | if (success) | |
886 | { | |
887 | remember_type (work, oldmangled, *mangled - oldmangled); | |
888 | } | |
889 | if (AUTO_DEMANGLING || GNU_DEMANGLING) | |
890 | { | |
891 | expect_func = 1; | |
892 | } | |
893 | oldmangled = NULL; | |
894 | break; | |
895 | ||
896 | case 'B': | |
897 | { | |
898 | string s; | |
899 | success = do_type (work, mangled, &s); | |
900 | if (success) | |
901 | { | |
902 | string_append (&s, SCOPE_STRING (work)); | |
903 | string_prepends (declp, &s); | |
904 | } | |
905 | oldmangled = NULL; | |
906 | expect_func = 1; | |
907 | } | |
908 | break; | |
909 | ||
910 | case 'F': | |
911 | /* Function */ | |
912 | /* ARM style demangling includes a specific 'F' character after | |
913 | the class name. For GNU style, it is just implied. So we can | |
914 | safely just consume any 'F' at this point and be compatible | |
915 | with either style. */ | |
916 | ||
917 | oldmangled = NULL; | |
918 | func_done = 1; | |
919 | (*mangled)++; | |
920 | ||
921 | /* For lucid/ARM style we have to forget any types we might | |
922 | have remembered up to this point, since they were not argument | |
923 | types. GNU style considers all types seen as available for | |
924 | back references. See comment in demangle_args() */ | |
925 | ||
926 | if (LUCID_DEMANGLING || ARM_DEMANGLING) | |
927 | { | |
928 | forget_types (work); | |
929 | } | |
930 | success = demangle_args (work, mangled, declp); | |
931 | break; | |
932 | ||
933 | case 't': | |
934 | /* G++ Template */ | |
935 | string_init(&trawname); | |
936 | string_init(&tname); | |
937 | if (oldmangled == NULL) | |
938 | { | |
939 | oldmangled = *mangled; | |
940 | } | |
941 | success = demangle_template (work, mangled, &tname, | |
942 | &trawname, 1, 1); | |
943 | if (success) | |
944 | { | |
945 | remember_type (work, oldmangled, *mangled - oldmangled); | |
946 | } | |
947 | string_append (&tname, SCOPE_STRING (work)); | |
948 | ||
949 | string_prepends(declp, &tname); | |
950 | if (work -> destructor & 1) | |
951 | { | |
952 | string_prepend (&trawname, "~"); | |
953 | string_appends (declp, &trawname); | |
954 | work->destructor -= 1; | |
955 | } | |
956 | if ((work->constructor & 1) || (work->destructor & 1)) | |
957 | { | |
958 | string_appends (declp, &trawname); | |
959 | work->constructor -= 1; | |
960 | } | |
961 | string_delete(&trawname); | |
962 | string_delete(&tname); | |
963 | oldmangled = NULL; | |
964 | expect_func = 1; | |
965 | break; | |
966 | ||
967 | case '_': | |
968 | if (GNU_DEMANGLING && expect_return_type) | |
969 | { | |
970 | /* Read the return type. */ | |
971 | string return_type; | |
972 | string_init (&return_type); | |
973 | ||
974 | (*mangled)++; | |
975 | success = do_type (work, mangled, &return_type); | |
976 | APPEND_BLANK (&return_type); | |
977 | ||
978 | string_prepends (declp, &return_type); | |
979 | string_delete (&return_type); | |
980 | break; | |
981 | } | |
982 | else | |
983 | /* At the outermost level, we cannot have a return type specified, | |
984 | so if we run into another '_' at this point we are dealing with | |
985 | a mangled name that is either bogus, or has been mangled by | |
986 | some algorithm we don't know how to deal with. So just | |
987 | reject the entire demangling. */ | |
988 | success = 0; | |
989 | break; | |
990 | ||
991 | case 'H': | |
992 | if (GNU_DEMANGLING) | |
993 | { | |
994 | /* A G++ template function. Read the template arguments. */ | |
995 | success = demangle_template (work, mangled, declp, 0, 0, | |
996 | 0); | |
997 | if (!(work->constructor & 1)) | |
998 | expect_return_type = 1; | |
999 | (*mangled)++; | |
1000 | break; | |
1001 | } | |
1002 | else | |
1003 | /* fall through */ | |
1004 | {;} | |
1005 | ||
1006 | default: | |
1007 | if (AUTO_DEMANGLING || GNU_DEMANGLING) | |
1008 | { | |
1009 | /* Assume we have stumbled onto the first outermost function | |
1010 | argument token, and start processing args. */ | |
1011 | func_done = 1; | |
1012 | success = demangle_args (work, mangled, declp); | |
1013 | } | |
1014 | else | |
1015 | { | |
1016 | /* Non-GNU demanglers use a specific token to mark the start | |
1017 | of the outermost function argument tokens. Typically 'F', | |
1018 | for ARM-demangling, for example. So if we find something | |
1019 | we are not prepared for, it must be an error. */ | |
1020 | success = 0; | |
1021 | } | |
1022 | break; | |
1023 | } | |
1024 | /* | |
1025 | if (AUTO_DEMANGLING || GNU_DEMANGLING) | |
1026 | */ | |
1027 | { | |
1028 | if (success && expect_func) | |
1029 | { | |
1030 | func_done = 1; | |
1031 | success = demangle_args (work, mangled, declp); | |
1032 | /* Since template include the mangling of their return types, | |
1033 | we must set expect_func to 0 so that we don't try do | |
1034 | demangle more arguments the next time we get here. */ | |
1035 | expect_func = 0; | |
1036 | } | |
1037 | } | |
1038 | } | |
1039 | if (success && !func_done) | |
1040 | { | |
1041 | if (AUTO_DEMANGLING || GNU_DEMANGLING) | |
1042 | { | |
1043 | /* With GNU style demangling, bar__3foo is 'foo::bar(void)', and | |
1044 | bar__3fooi is 'foo::bar(int)'. We get here when we find the | |
1045 | first case, and need to ensure that the '(void)' gets added to | |
1046 | the current declp. Note that with ARM, the first case | |
1047 | represents the name of a static data member 'foo::bar', | |
1048 | which is in the current declp, so we leave it alone. */ | |
1049 | success = demangle_args (work, mangled, declp); | |
1050 | } | |
1051 | } | |
1052 | if (success && work -> static_type && PRINT_ARG_TYPES) | |
1053 | string_append (declp, " static"); | |
1054 | if (success && work -> const_type && PRINT_ARG_TYPES) | |
1055 | string_append (declp, " const"); | |
1056 | else if (success && work->volatile_type && PRINT_ARG_TYPES) | |
1057 | string_append (declp, " volatile"); | |
1058 | ||
1059 | return (success); | |
1060 | } | |
1061 | ||
1062 | #if 0 | |
1063 | ||
1064 | static int | |
1065 | demangle_method_args (work, mangled, declp) | |
1066 | struct work_stuff *work; | |
1067 | const char **mangled; | |
1068 | string *declp; | |
1069 | { | |
1070 | int success = 0; | |
1071 | ||
1072 | if (work -> static_type) | |
1073 | { | |
1074 | string_append (declp, *mangled + 1); | |
1075 | *mangled += strlen (*mangled); | |
1076 | success = 1; | |
1077 | } | |
1078 | else | |
1079 | { | |
1080 | success = demangle_args (work, mangled, declp); | |
1081 | } | |
1082 | return (success); | |
1083 | } | |
1084 | ||
1085 | #endif | |
1086 | ||
1087 | static int | |
1088 | demangle_template_template_parm (work, mangled, tname) | |
1089 | struct work_stuff *work; | |
1090 | const char **mangled; | |
1091 | string *tname; | |
1092 | { | |
1093 | int i; | |
1094 | int r; | |
1095 | int need_comma = 0; | |
1096 | int success = 1; | |
1097 | string temp; | |
1098 | ||
1099 | string_append (tname, "template <"); | |
1100 | /* get size of template parameter list */ | |
1101 | if (get_count (mangled, &r)) | |
1102 | { | |
1103 | for (i = 0; i < r; i++) | |
1104 | { | |
1105 | if (need_comma) | |
1106 | { | |
1107 | string_append (tname, ", "); | |
1108 | } | |
1109 | ||
1110 | /* Z for type parameters */ | |
1111 | if (**mangled == 'Z') | |
1112 | { | |
1113 | (*mangled)++; | |
1114 | string_append (tname, "class"); | |
1115 | } | |
1116 | /* z for template parameters */ | |
1117 | else if (**mangled == 'z') | |
1118 | { | |
1119 | (*mangled)++; | |
1120 | success = | |
1121 | demangle_template_template_parm (work, mangled, tname); | |
1122 | if (!success) | |
1123 | { | |
1124 | break; | |
1125 | } | |
1126 | } | |
1127 | else | |
1128 | { | |
1129 | /* temp is initialized in do_type */ | |
1130 | success = do_type (work, mangled, &temp); | |
1131 | if (success) | |
1132 | { | |
1133 | string_appends (tname, &temp); | |
1134 | } | |
1135 | string_delete(&temp); | |
1136 | if (!success) | |
1137 | { | |
1138 | break; | |
1139 | } | |
1140 | } | |
1141 | need_comma = 1; | |
1142 | } | |
1143 | ||
1144 | } | |
1145 | if (tname->p[-1] == '>') | |
1146 | string_append (tname, " "); | |
1147 | string_append (tname, "> class"); | |
1148 | return (success); | |
1149 | } | |
1150 | ||
1151 | static int | |
1152 | demangle_integral_value (work, mangled, s) | |
1153 | struct work_stuff *work; | |
1154 | const char** mangled; | |
1155 | string* s; | |
1156 | { | |
1157 | int success; | |
1158 | ||
1159 | if (**mangled == 'E') | |
1160 | { | |
1161 | int need_operator = 0; | |
1162 | ||
1163 | success = 1; | |
1164 | string_appendn (s, "(", 1); | |
1165 | (*mangled)++; | |
1166 | while (success && **mangled != 'W' && **mangled != '\0') | |
1167 | { | |
1168 | if (need_operator) | |
1169 | { | |
1170 | size_t i; | |
1171 | size_t len; | |
1172 | ||
1173 | success = 0; | |
1174 | ||
1175 | len = strlen (*mangled); | |
1176 | ||
1177 | for (i = 0; | |
1178 | i < sizeof (optable) / sizeof (optable [0]); | |
1179 | ++i) | |
1180 | { | |
1181 | size_t l = strlen (optable[i].in); | |
1182 | ||
1183 | if (l <= len | |
1184 | && memcmp (optable[i].in, *mangled, l) == 0) | |
1185 | { | |
1186 | string_appendn (s, " ", 1); | |
1187 | string_append (s, optable[i].out); | |
1188 | string_appendn (s, " ", 1); | |
1189 | success = 1; | |
1190 | (*mangled) += l; | |
1191 | break; | |
1192 | } | |
1193 | } | |
1194 | ||
1195 | if (!success) | |
1196 | break; | |
1197 | } | |
1198 | else | |
1199 | need_operator = 1; | |
1200 | ||
1201 | success = demangle_template_value_parm (work, mangled, s, | |
1202 | tk_integral); | |
1203 | } | |
1204 | ||
1205 | if (**mangled != 'W') | |
1206 | success = 0; | |
1207 | else | |
1208 | { | |
1209 | string_appendn (s, ")", 1); | |
1210 | (*mangled)++; | |
1211 | } | |
1212 | } | |
1213 | else if (**mangled == 'Q' || **mangled == 'K') | |
1214 | success = demangle_qualified (work, mangled, s, 0, 1); | |
1215 | else | |
1216 | { | |
1217 | success = 0; | |
1218 | ||
1219 | if (**mangled == 'm') | |
1220 | { | |
1221 | string_appendn (s, "-", 1); | |
1222 | (*mangled)++; | |
1223 | } | |
1224 | while (isdigit (**mangled)) | |
1225 | { | |
1226 | string_appendn (s, *mangled, 1); | |
1227 | (*mangled)++; | |
1228 | success = 1; | |
1229 | } | |
1230 | } | |
1231 | ||
1232 | return success; | |
1233 | } | |
1234 | ||
1235 | static int | |
1236 | demangle_template_value_parm (work, mangled, s, tk) | |
1237 | struct work_stuff *work; | |
1238 | const char **mangled; | |
1239 | string* s; | |
1240 | type_kind_t tk; | |
1241 | { | |
1242 | int success = 1; | |
1243 | ||
1244 | if (**mangled == 'Y') | |
1245 | { | |
1246 | /* The next argument is a template parameter. */ | |
1247 | int idx; | |
1248 | ||
1249 | (*mangled)++; | |
1250 | idx = consume_count_with_underscores (mangled); | |
1251 | if (idx == -1 | |
1252 | || (work->tmpl_argvec && idx >= work->ntmpl_args) | |
1253 | || consume_count_with_underscores (mangled) == -1) | |
1254 | return -1; | |
1255 | if (work->tmpl_argvec) | |
1256 | string_append (s, work->tmpl_argvec[idx]); | |
1257 | else | |
1258 | { | |
1259 | char buf[10]; | |
1260 | sprintf(buf, "T%d", idx); | |
1261 | string_append (s, buf); | |
1262 | } | |
1263 | } | |
1264 | else if (tk == tk_integral) | |
1265 | success = demangle_integral_value (work, mangled, s); | |
1266 | else if (tk == tk_char) | |
1267 | { | |
1268 | char tmp[2]; | |
1269 | int val; | |
1270 | if (**mangled == 'm') | |
1271 | { | |
1272 | string_appendn (s, "-", 1); | |
1273 | (*mangled)++; | |
1274 | } | |
1275 | string_appendn (s, "'", 1); | |
1276 | val = consume_count(mangled); | |
1277 | if (val == 0) | |
1278 | return -1; | |
1279 | tmp[0] = (char)val; | |
1280 | tmp[1] = '\0'; | |
1281 | string_appendn (s, &tmp[0], 1); | |
1282 | string_appendn (s, "'", 1); | |
1283 | } | |
1284 | else if (tk == tk_bool) | |
1285 | { | |
1286 | int val = consume_count (mangled); | |
1287 | if (val == 0) | |
1288 | string_appendn (s, "false", 5); | |
1289 | else if (val == 1) | |
1290 | string_appendn (s, "true", 4); | |
1291 | else | |
1292 | success = 0; | |
1293 | } | |
1294 | else if (tk == tk_real) | |
1295 | { | |
1296 | if (**mangled == 'm') | |
1297 | { | |
1298 | string_appendn (s, "-", 1); | |
1299 | (*mangled)++; | |
1300 | } | |
1301 | while (isdigit (**mangled)) | |
1302 | { | |
1303 | string_appendn (s, *mangled, 1); | |
1304 | (*mangled)++; | |
1305 | } | |
1306 | if (**mangled == '.') /* fraction */ | |
1307 | { | |
1308 | string_appendn (s, ".", 1); | |
1309 | (*mangled)++; | |
1310 | while (isdigit (**mangled)) | |
1311 | { | |
1312 | string_appendn (s, *mangled, 1); | |
1313 | (*mangled)++; | |
1314 | } | |
1315 | } | |
1316 | if (**mangled == 'e') /* exponent */ | |
1317 | { | |
1318 | string_appendn (s, "e", 1); | |
1319 | (*mangled)++; | |
1320 | while (isdigit (**mangled)) | |
1321 | { | |
1322 | string_appendn (s, *mangled, 1); | |
1323 | (*mangled)++; | |
1324 | } | |
1325 | } | |
1326 | } | |
1327 | else if (tk == tk_pointer) | |
1328 | { | |
1329 | int symbol_len = consume_count (mangled); | |
1330 | if (symbol_len == 0) | |
1331 | return -1; | |
1332 | if (symbol_len == 0) | |
1333 | string_appendn (s, "0", 1); | |
1334 | else | |
1335 | { | |
1336 | char *p = xmalloc (symbol_len + 1), *q; | |
1337 | strncpy (p, *mangled, symbol_len); | |
1338 | p [symbol_len] = '\0'; | |
1339 | q = internal_cplus_demangle (work, p); | |
1340 | string_appendn (s, "&", 1); | |
1341 | if (q) | |
1342 | { | |
1343 | string_append (s, q); | |
1344 | free (q); | |
1345 | } | |
1346 | else | |
1347 | string_append (s, p); | |
1348 | free (p); | |
1349 | } | |
1350 | *mangled += symbol_len; | |
1351 | } | |
1352 | ||
1353 | return success; | |
1354 | } | |
1355 | ||
1356 | /* Demangle the template name in MANGLED. The full name of the | |
1357 | template (e.g., S<int>) is placed in TNAME. The name without the | |
1358 | template parameters (e.g. S) is placed in TRAWNAME if TRAWNAME is | |
1359 | non-NULL. If IS_TYPE is nonzero, this template is a type template, | |
1360 | not a function template. If both IS_TYPE and REMEMBER are nonzero, | |
1361 | the tmeplate is remembered in the list of back-referenceable | |
1362 | types. */ | |
1363 | ||
1364 | static int | |
1365 | demangle_template (work, mangled, tname, trawname, is_type, remember) | |
1366 | struct work_stuff *work; | |
1367 | const char **mangled; | |
1368 | string *tname; | |
1369 | string *trawname; | |
1370 | int is_type; | |
1371 | int remember; | |
1372 | { | |
1373 | int i; | |
1374 | int r; | |
1375 | int need_comma = 0; | |
1376 | int success = 0; | |
1377 | const char *start; | |
1378 | string temp; | |
1379 | int bindex; | |
1380 | ||
1381 | (*mangled)++; | |
1382 | if (is_type) | |
1383 | { | |
1384 | if (remember) | |
1385 | bindex = register_Btype (work); | |
1386 | start = *mangled; | |
1387 | /* get template name */ | |
1388 | if (**mangled == 'z') | |
1389 | { | |
1390 | int idx; | |
1391 | (*mangled)++; | |
1392 | (*mangled)++; | |
1393 | ||
1394 | idx = consume_count_with_underscores (mangled); | |
1395 | if (idx == -1 | |
1396 | || (work->tmpl_argvec && idx >= work->ntmpl_args) | |
1397 | || consume_count_with_underscores (mangled) == -1) | |
1398 | return (0); | |
1399 | ||
1400 | if (work->tmpl_argvec) | |
1401 | { | |
1402 | string_append (tname, work->tmpl_argvec[idx]); | |
1403 | if (trawname) | |
1404 | string_append (trawname, work->tmpl_argvec[idx]); | |
1405 | } | |
1406 | else | |
1407 | { | |
1408 | char buf[10]; | |
1409 | sprintf(buf, "T%d", idx); | |
1410 | string_append (tname, buf); | |
1411 | if (trawname) | |
1412 | string_append (trawname, buf); | |
1413 | } | |
1414 | } | |
1415 | else | |
1416 | { | |
1417 | if ((r = consume_count (mangled)) == 0 || strlen (*mangled) < r) | |
1418 | { | |
1419 | return (0); | |
1420 | } | |
1421 | string_appendn (tname, *mangled, r); | |
1422 | if (trawname) | |
1423 | string_appendn (trawname, *mangled, r); | |
1424 | *mangled += r; | |
1425 | } | |
1426 | } | |
1427 | string_append (tname, "<"); | |
1428 | /* get size of template parameter list */ | |
1429 | if (!get_count (mangled, &r)) | |
1430 | { | |
1431 | return (0); | |
1432 | } | |
1433 | if (!is_type) | |
1434 | { | |
1435 | /* Create an array for saving the template argument values. */ | |
1436 | work->tmpl_argvec = (char**) xmalloc (r * sizeof (char *)); | |
1437 | work->ntmpl_args = r; | |
1438 | for (i = 0; i < r; i++) | |
1439 | work->tmpl_argvec[i] = 0; | |
1440 | } | |
1441 | for (i = 0; i < r; i++) | |
1442 | { | |
1443 | if (need_comma) | |
1444 | { | |
1445 | string_append (tname, ", "); | |
1446 | } | |
1447 | /* Z for type parameters */ | |
1448 | if (**mangled == 'Z') | |
1449 | { | |
1450 | (*mangled)++; | |
1451 | /* temp is initialized in do_type */ | |
1452 | success = do_type (work, mangled, &temp); | |
1453 | if (success) | |
1454 | { | |
1455 | string_appends (tname, &temp); | |
1456 | ||
1457 | if (!is_type) | |
1458 | { | |
1459 | /* Save the template argument. */ | |
1460 | int len = temp.p - temp.b; | |
1461 | work->tmpl_argvec[i] = xmalloc (len + 1); | |
1462 | memcpy (work->tmpl_argvec[i], temp.b, len); | |
1463 | work->tmpl_argvec[i][len] = '\0'; | |
1464 | } | |
1465 | } | |
1466 | string_delete(&temp); | |
1467 | if (!success) | |
1468 | { | |
1469 | break; | |
1470 | } | |
1471 | } | |
1472 | /* z for template parameters */ | |
1473 | else if (**mangled == 'z') | |
1474 | { | |
1475 | int r2; | |
1476 | (*mangled)++; | |
1477 | success = demangle_template_template_parm (work, mangled, tname); | |
1478 | ||
1479 | if (success | |
1480 | && (r2 = consume_count (mangled)) > 0 && strlen (*mangled) >= r2) | |
1481 | { | |
1482 | string_append (tname, " "); | |
1483 | string_appendn (tname, *mangled, r2); | |
1484 | if (!is_type) | |
1485 | { | |
1486 | /* Save the template argument. */ | |
1487 | int len = r2; | |
1488 | work->tmpl_argvec[i] = xmalloc (len + 1); | |
1489 | memcpy (work->tmpl_argvec[i], *mangled, len); | |
1490 | work->tmpl_argvec[i][len] = '\0'; | |
1491 | } | |
1492 | *mangled += r2; | |
1493 | } | |
1494 | if (!success) | |
1495 | { | |
1496 | break; | |
1497 | } | |
1498 | } | |
1499 | else | |
1500 | { | |
1501 | string param; | |
1502 | string* s; | |
1503 | const char* start_of_value_parm = *mangled; | |
1504 | ||
1505 | /* otherwise, value parameter */ | |
1506 | ||
1507 | /* temp is initialized in do_type */ | |
1508 | success = do_type (work, mangled, &temp); | |
1509 | string_delete(&temp); | |
1510 | if (!success) | |
1511 | break; | |
1512 | ||
1513 | if (!is_type) | |
1514 | { | |
1515 | s = ¶m; | |
1516 | string_init (s); | |
1517 | } | |
1518 | else | |
1519 | s = tname; | |
1520 | ||
1521 | success = demangle_template_value_parm (work, mangled, s, | |
1522 | (type_kind_t) success); | |
1523 | ||
1524 | if (!success) | |
1525 | { | |
1526 | if (!is_type) | |
1527 | string_delete (s); | |
1528 | success = 0; | |
1529 | break; | |
1530 | } | |
1531 | ||
1532 | if (!is_type) | |
1533 | { | |
1534 | int len = s->p - s->b; | |
1535 | work->tmpl_argvec[i] = xmalloc (len + 1); | |
1536 | memcpy (work->tmpl_argvec[i], s->b, len); | |
1537 | work->tmpl_argvec[i][len] = '\0'; | |
1538 | ||
1539 | string_appends (tname, s); | |
1540 | string_delete (s); | |
1541 | } | |
1542 | } | |
1543 | need_comma = 1; | |
1544 | } | |
1545 | { | |
1546 | if (tname->p[-1] == '>') | |
1547 | string_append (tname, " "); | |
1548 | string_append (tname, ">"); | |
1549 | } | |
1550 | ||
1551 | if (is_type && remember) | |
1552 | remember_Btype (work, tname->b, LEN_STRING (tname), bindex); | |
1553 | ||
1554 | /* | |
1555 | if (work -> static_type) | |
1556 | { | |
1557 | string_append (declp, *mangled + 1); | |
1558 | *mangled += strlen (*mangled); | |
1559 | success = 1; | |
1560 | } | |
1561 | else | |
1562 | { | |
1563 | success = demangle_args (work, mangled, declp); | |
1564 | } | |
1565 | } | |
1566 | */ | |
1567 | return (success); | |
1568 | } | |
1569 | ||
1570 | static int | |
1571 | arm_pt (work, mangled, n, anchor, args) | |
1572 | struct work_stuff *work; | |
1573 | const char *mangled; | |
1574 | int n; | |
1575 | const char **anchor, **args; | |
1576 | { | |
1577 | /* ARM template? */ | |
1578 | if (ARM_DEMANGLING && (*anchor = mystrstr (mangled, "__pt__"))) | |
1579 | { | |
1580 | int len; | |
1581 | *args = *anchor + 6; | |
1582 | len = consume_count (args); | |
1583 | if (*args + len == mangled + n && **args == '_') | |
1584 | { | |
1585 | ++*args; | |
1586 | return 1; | |
1587 | } | |
1588 | } | |
1589 | return 0; | |
1590 | } | |
1591 | ||
1592 | static void | |
1593 | demangle_arm_pt (work, mangled, n, declp) | |
1594 | struct work_stuff *work; | |
1595 | const char **mangled; | |
1596 | int n; | |
1597 | string *declp; | |
1598 | { | |
1599 | const char *p; | |
1600 | const char *args; | |
1601 | const char *e = *mangled + n; | |
1602 | ||
1603 | /* ARM template? */ | |
1604 | if (arm_pt (work, *mangled, n, &p, &args)) | |
1605 | { | |
1606 | string arg; | |
1607 | string_init (&arg); | |
1608 | string_appendn (declp, *mangled, p - *mangled); | |
1609 | string_append (declp, "<"); | |
1610 | /* should do error checking here */ | |
1611 | while (args < e) { | |
1612 | string_clear (&arg); | |
1613 | do_type (work, &args, &arg); | |
1614 | string_appends (declp, &arg); | |
1615 | string_append (declp, ","); | |
1616 | } | |
1617 | string_delete (&arg); | |
1618 | --declp->p; | |
1619 | string_append (declp, ">"); | |
1620 | } | |
1621 | else | |
1622 | { | |
1623 | string_appendn (declp, *mangled, n); | |
1624 | } | |
1625 | *mangled += n; | |
1626 | } | |
1627 | ||
1628 | static int | |
1629 | demangle_class_name (work, mangled, declp) | |
1630 | struct work_stuff *work; | |
1631 | const char **mangled; | |
1632 | string *declp; | |
1633 | { | |
1634 | int n; | |
1635 | int success = 0; | |
1636 | ||
1637 | n = consume_count (mangled); | |
1638 | if (strlen (*mangled) >= n) | |
1639 | { | |
1640 | demangle_arm_pt (work, mangled, n, declp); | |
1641 | success = 1; | |
1642 | } | |
1643 | ||
1644 | return (success); | |
1645 | } | |
1646 | ||
1647 | /* | |
1648 | ||
1649 | LOCAL FUNCTION | |
1650 | ||
1651 | demangle_class -- demangle a mangled class sequence | |
1652 | ||
1653 | SYNOPSIS | |
1654 | ||
1655 | static int | |
1656 | demangle_class (struct work_stuff *work, const char **mangled, | |
1657 | strint *declp) | |
1658 | ||
1659 | DESCRIPTION | |
1660 | ||
1661 | DECLP points to the buffer into which demangling is being done. | |
1662 | ||
1663 | *MANGLED points to the current token to be demangled. On input, | |
1664 | it points to a mangled class (I.E. "3foo", "13verylongclass", etc.) | |
1665 | On exit, it points to the next token after the mangled class on | |
1666 | success, or the first unconsumed token on failure. | |
1667 | ||
1668 | If the CONSTRUCTOR or DESTRUCTOR flags are set in WORK, then | |
1669 | we are demangling a constructor or destructor. In this case | |
1670 | we prepend "class::class" or "class::~class" to DECLP. | |
1671 | ||
1672 | Otherwise, we prepend "class::" to the current DECLP. | |
1673 | ||
1674 | Reset the constructor/destructor flags once they have been | |
1675 | "consumed". This allows demangle_class to be called later during | |
1676 | the same demangling, to do normal class demangling. | |
1677 | ||
1678 | Returns 1 if demangling is successful, 0 otherwise. | |
1679 | ||
1680 | */ | |
1681 | ||
1682 | static int | |
1683 | demangle_class (work, mangled, declp) | |
1684 | struct work_stuff *work; | |
1685 | const char **mangled; | |
1686 | string *declp; | |
1687 | { | |
1688 | int success = 0; | |
1689 | int btype; | |
1690 | string class_name; | |
1691 | ||
1692 | string_init (&class_name); | |
1693 | btype = register_Btype (work); | |
1694 | if (demangle_class_name (work, mangled, &class_name)) | |
1695 | { | |
1696 | if ((work->constructor & 1) || (work->destructor & 1)) | |
1697 | { | |
1698 | string_prepends (declp, &class_name); | |
1699 | if (work -> destructor & 1) | |
1700 | { | |
1701 | string_prepend (declp, "~"); | |
1702 | work -> destructor -= 1; | |
1703 | } | |
1704 | else | |
1705 | { | |
1706 | work -> constructor -= 1; | |
1707 | } | |
1708 | } | |
1709 | remember_Ktype (work, class_name.b, LEN_STRING(&class_name)); | |
1710 | remember_Btype (work, class_name.b, LEN_STRING(&class_name), btype); | |
1711 | string_prepend (declp, SCOPE_STRING (work)); | |
1712 | string_prepends (declp, &class_name); | |
1713 | success = 1; | |
1714 | } | |
1715 | string_delete (&class_name); | |
1716 | return (success); | |
1717 | } | |
1718 | ||
1719 | /* | |
1720 | ||
1721 | LOCAL FUNCTION | |
1722 | ||
1723 | demangle_prefix -- consume the mangled name prefix and find signature | |
1724 | ||
1725 | SYNOPSIS | |
1726 | ||
1727 | static int | |
1728 | demangle_prefix (struct work_stuff *work, const char **mangled, | |
1729 | string *declp); | |
1730 | ||
1731 | DESCRIPTION | |
1732 | ||
1733 | Consume and demangle the prefix of the mangled name. | |
1734 | ||
1735 | DECLP points to the string buffer into which demangled output is | |
1736 | placed. On entry, the buffer is empty. On exit it contains | |
1737 | the root function name, the demangled operator name, or in some | |
1738 | special cases either nothing or the completely demangled result. | |
1739 | ||
1740 | MANGLED points to the current pointer into the mangled name. As each | |
1741 | token of the mangled name is consumed, it is updated. Upon entry | |
1742 | the current mangled name pointer points to the first character of | |
1743 | the mangled name. Upon exit, it should point to the first character | |
1744 | of the signature if demangling was successful, or to the first | |
1745 | unconsumed character if demangling of the prefix was unsuccessful. | |
1746 | ||
1747 | Returns 1 on success, 0 otherwise. | |
1748 | */ | |
1749 | ||
1750 | static int | |
1751 | demangle_prefix (work, mangled, declp) | |
1752 | struct work_stuff *work; | |
1753 | const char **mangled; | |
1754 | string *declp; | |
1755 | { | |
1756 | int success = 1; | |
1757 | const char *scan; | |
1758 | int i; | |
1759 | ||
1760 | if (strlen(*mangled) >= 11 && strncmp(*mangled, "_GLOBAL_", 8) == 0) | |
1761 | { | |
1762 | char *marker = strchr (cplus_markers, (*mangled)[8]); | |
1763 | if (marker != NULL && *marker == (*mangled)[10]) | |
1764 | { | |
1765 | if ((*mangled)[9] == 'D') | |
1766 | { | |
1767 | /* it's a GNU global destructor to be executed at program exit */ | |
1768 | (*mangled) += 11; | |
1769 | work->destructor = 2; | |
1770 | if (gnu_special (work, mangled, declp)) | |
1771 | return success; | |
1772 | } | |
1773 | else if ((*mangled)[9] == 'I') | |
1774 | { | |
1775 | /* it's a GNU global constructor to be executed at program init */ | |
1776 | (*mangled) += 11; | |
1777 | work->constructor = 2; | |
1778 | if (gnu_special (work, mangled, declp)) | |
1779 | return success; | |
1780 | } | |
1781 | } | |
1782 | } | |
1783 | else if (ARM_DEMANGLING && strncmp(*mangled, "__std__", 7) == 0) | |
1784 | { | |
1785 | /* it's a ARM global destructor to be executed at program exit */ | |
1786 | (*mangled) += 7; | |
1787 | work->destructor = 2; | |
1788 | } | |
1789 | else if (ARM_DEMANGLING && strncmp(*mangled, "__sti__", 7) == 0) | |
1790 | { | |
1791 | /* it's a ARM global constructor to be executed at program initial */ | |
1792 | (*mangled) += 7; | |
1793 | work->constructor = 2; | |
1794 | } | |
1795 | ||
1796 | /* This block of code is a reduction in strength time optimization | |
1797 | of: | |
1798 | scan = mystrstr (*mangled, "__"); */ | |
1799 | ||
1800 | { | |
1801 | scan = *mangled; | |
1802 | ||
1803 | do { | |
1804 | scan = strchr (scan, '_'); | |
1805 | } while (scan != NULL && *++scan != '_'); | |
1806 | ||
1807 | if (scan != NULL) --scan; | |
1808 | } | |
1809 | ||
1810 | if (scan != NULL) | |
1811 | { | |
1812 | /* We found a sequence of two or more '_', ensure that we start at | |
1813 | the last pair in the sequence. */ | |
1814 | i = strspn (scan, "_"); | |
1815 | if (i > 2) | |
1816 | { | |
1817 | scan += (i - 2); | |
1818 | } | |
1819 | } | |
1820 | ||
1821 | if (scan == NULL) | |
1822 | { | |
1823 | success = 0; | |
1824 | } | |
1825 | else if (work -> static_type) | |
1826 | { | |
1827 | if (!isdigit (scan[0]) && (scan[0] != 't')) | |
1828 | { | |
1829 | success = 0; | |
1830 | } | |
1831 | } | |
1832 | else if ((scan == *mangled) | |
1833 | && (isdigit (scan[2]) || (scan[2] == 'Q') || (scan[2] == 't') | |
1834 | || (scan[2] == 'K') || (scan[2] == 'H'))) | |
1835 | { | |
1836 | /* The ARM says nothing about the mangling of local variables. | |
1837 | But cfront mangles local variables by prepending __<nesting_level> | |
1838 | to them. As an extension to ARM demangling we handle this case. */ | |
1839 | if ((LUCID_DEMANGLING || ARM_DEMANGLING) && isdigit (scan[2])) | |
1840 | { | |
1841 | *mangled = scan + 2; | |
1842 | consume_count (mangled); | |
1843 | string_append (declp, *mangled); | |
1844 | *mangled += strlen (*mangled); | |
1845 | success = 1; | |
1846 | } | |
1847 | else | |
1848 | { | |
1849 | /* A GNU style constructor starts with __[0-9Qt]. But cfront uses | |
1850 | names like __Q2_3foo3bar for nested type names. So don't accept | |
1851 | this style of constructor for cfront demangling. A GNU | |
1852 | style member-template constructor starts with 'H'. */ | |
1853 | if (!(LUCID_DEMANGLING || ARM_DEMANGLING)) | |
1854 | work -> constructor += 1; | |
1855 | *mangled = scan + 2; | |
1856 | } | |
1857 | } | |
1858 | else if ((scan == *mangled) && !isdigit (scan[2]) && (scan[2] != 't')) | |
1859 | { | |
1860 | /* Mangled name starts with "__". Skip over any leading '_' characters, | |
1861 | then find the next "__" that separates the prefix from the signature. | |
1862 | */ | |
1863 | if (!(ARM_DEMANGLING || LUCID_DEMANGLING) | |
1864 | || (arm_special (mangled, declp) == 0)) | |
1865 | { | |
1866 | while (*scan == '_') | |
1867 | { | |
1868 | scan++; | |
1869 | } | |
1870 | if ((scan = mystrstr (scan, "__")) == NULL || (*(scan + 2) == '\0')) | |
1871 | { | |
1872 | /* No separator (I.E. "__not_mangled"), or empty signature | |
1873 | (I.E. "__not_mangled_either__") */ | |
1874 | success = 0; | |
1875 | } | |
1876 | else | |
1877 | { | |
1878 | demangle_function_name (work, mangled, declp, scan); | |
1879 | } | |
1880 | } | |
1881 | } | |
1882 | else if (ARM_DEMANGLING && scan[2] == 'p' && scan[3] == 't') | |
1883 | { | |
1884 | /* Cfront-style parameterized type. Handled later as a signature. */ | |
1885 | success = 1; | |
1886 | ||
1887 | /* ARM template? */ | |
1888 | demangle_arm_pt (work, mangled, strlen (*mangled), declp); | |
1889 | } | |
1890 | else if (*(scan + 2) != '\0') | |
1891 | { | |
1892 | /* Mangled name does not start with "__" but does have one somewhere | |
1893 | in there with non empty stuff after it. Looks like a global | |
1894 | function name. */ | |
1895 | demangle_function_name (work, mangled, declp, scan); | |
1896 | } | |
1897 | else | |
1898 | { | |
1899 | /* Doesn't look like a mangled name */ | |
1900 | success = 0; | |
1901 | } | |
1902 | ||
1903 | if (!success && (work->constructor == 2 || work->destructor == 2)) | |
1904 | { | |
1905 | string_append (declp, *mangled); | |
1906 | *mangled += strlen (*mangled); | |
1907 | success = 1; | |
1908 | } | |
1909 | return (success); | |
1910 | } | |
1911 | ||
1912 | /* | |
1913 | ||
1914 | LOCAL FUNCTION | |
1915 | ||
1916 | gnu_special -- special handling of gnu mangled strings | |
1917 | ||
1918 | SYNOPSIS | |
1919 | ||
1920 | static int | |
1921 | gnu_special (struct work_stuff *work, const char **mangled, | |
1922 | string *declp); | |
1923 | ||
1924 | ||
1925 | DESCRIPTION | |
1926 | ||
1927 | Process some special GNU style mangling forms that don't fit | |
1928 | the normal pattern. For example: | |
1929 | ||
1930 | _$_3foo (destructor for class foo) | |
1931 | _vt$foo (foo virtual table) | |
1932 | _vt$foo$bar (foo::bar virtual table) | |
1933 | __vt_foo (foo virtual table, new style with thunks) | |
1934 | _3foo$varname (static data member) | |
1935 | _Q22rs2tu$vw (static data member) | |
1936 | __t6vector1Zii (constructor with template) | |
1937 | __thunk_4__$_7ostream (virtual function thunk) | |
1938 | */ | |
1939 | ||
1940 | static int | |
1941 | gnu_special (work, mangled, declp) | |
1942 | struct work_stuff *work; | |
1943 | const char **mangled; | |
1944 | string *declp; | |
1945 | { | |
1946 | int n; | |
1947 | int success = 1; | |
1948 | const char *p; | |
1949 | ||
1950 | if ((*mangled)[0] == '_' | |
1951 | && strchr (cplus_markers, (*mangled)[1]) != NULL | |
1952 | && (*mangled)[2] == '_') | |
1953 | { | |
1954 | /* Found a GNU style destructor, get past "_<CPLUS_MARKER>_" */ | |
1955 | (*mangled) += 3; | |
1956 | work -> destructor += 1; | |
1957 | } | |
1958 | else if ((*mangled)[0] == '_' | |
1959 | && (((*mangled)[1] == '_' | |
1960 | && (*mangled)[2] == 'v' | |
1961 | && (*mangled)[3] == 't' | |
1962 | && (*mangled)[4] == '_') | |
1963 | || ((*mangled)[1] == 'v' | |
1964 | && (*mangled)[2] == 't' | |
1965 | && strchr (cplus_markers, (*mangled)[3]) != NULL))) | |
1966 | { | |
1967 | /* Found a GNU style virtual table, get past "_vt<CPLUS_MARKER>" | |
1968 | and create the decl. Note that we consume the entire mangled | |
1969 | input string, which means that demangle_signature has no work | |
1970 | to do. */ | |
1971 | if ((*mangled)[2] == 'v') | |
1972 | (*mangled) += 5; /* New style, with thunks: "__vt_" */ | |
1973 | else | |
1974 | (*mangled) += 4; /* Old style, no thunks: "_vt<CPLUS_MARKER>" */ | |
1975 | while (**mangled != '\0') | |
1976 | { | |
1977 | p = strpbrk (*mangled, cplus_markers); | |
1978 | switch (**mangled) | |
1979 | { | |
1980 | case 'Q': | |
1981 | case 'K': | |
1982 | success = demangle_qualified (work, mangled, declp, 0, 1); | |
1983 | break; | |
1984 | case 't': | |
1985 | success = demangle_template (work, mangled, declp, 0, 1, | |
1986 | 1); | |
1987 | break; | |
1988 | default: | |
1989 | if (isdigit(*mangled[0])) | |
1990 | { | |
1991 | n = consume_count(mangled); | |
1992 | /* We may be seeing a too-large size, or else a | |
1993 | ".<digits>" indicating a static local symbol. In | |
1994 | any case, declare victory and move on; *don't* try | |
1995 | to use n to allocate. */ | |
1996 | if (n > strlen (*mangled)) | |
1997 | { | |
1998 | success = 1; | |
1999 | break; | |
2000 | } | |
2001 | } | |
2002 | else | |
2003 | { | |
2004 | n = strcspn (*mangled, cplus_markers); | |
2005 | } | |
2006 | string_appendn (declp, *mangled, n); | |
2007 | (*mangled) += n; | |
2008 | } | |
2009 | ||
2010 | if (success && ((p == NULL) || (p == *mangled))) | |
2011 | { | |
2012 | if (p != NULL) | |
2013 | { | |
2014 | string_append (declp, SCOPE_STRING (work)); | |
2015 | (*mangled)++; | |
2016 | } | |
2017 | } | |
2018 | else | |
2019 | { | |
2020 | success = 0; | |
2021 | break; | |
2022 | } | |
2023 | } | |
2024 | if (success) | |
2025 | string_append (declp, " virtual table"); | |
2026 | } | |
2027 | else if ((*mangled)[0] == '_' | |
2028 | && (strchr("0123456789Qt", (*mangled)[1]) != NULL) | |
2029 | && (p = strpbrk (*mangled, cplus_markers)) != NULL) | |
2030 | { | |
2031 | /* static data member, "_3foo$varname" for example */ | |
2032 | (*mangled)++; | |
2033 | switch (**mangled) | |
2034 | { | |
2035 | case 'Q': | |
2036 | case 'K': | |
2037 | success = demangle_qualified (work, mangled, declp, 0, 1); | |
2038 | break; | |
2039 | case 't': | |
2040 | success = demangle_template (work, mangled, declp, 0, 1, 1); | |
2041 | break; | |
2042 | default: | |
2043 | n = consume_count (mangled); | |
2044 | string_appendn (declp, *mangled, n); | |
2045 | (*mangled) += n; | |
2046 | } | |
2047 | if (success && (p == *mangled)) | |
2048 | { | |
2049 | /* Consumed everything up to the cplus_marker, append the | |
2050 | variable name. */ | |
2051 | (*mangled)++; | |
2052 | string_append (declp, SCOPE_STRING (work)); | |
2053 | n = strlen (*mangled); | |
2054 | string_appendn (declp, *mangled, n); | |
2055 | (*mangled) += n; | |
2056 | } | |
2057 | else | |
2058 | { | |
2059 | success = 0; | |
2060 | } | |
2061 | } | |
2062 | else if (strncmp (*mangled, "__thunk_", 8) == 0) | |
2063 | { | |
2064 | int delta = ((*mangled) += 8, consume_count (mangled)); | |
2065 | char *method = internal_cplus_demangle (work, ++*mangled); | |
2066 | if (method) | |
2067 | { | |
2068 | char buf[50]; | |
2069 | sprintf (buf, "virtual function thunk (delta:%d) for ", -delta); | |
2070 | string_append (declp, buf); | |
2071 | string_append (declp, method); | |
2072 | free (method); | |
2073 | n = strlen (*mangled); | |
2074 | (*mangled) += n; | |
2075 | } | |
2076 | else | |
2077 | { | |
2078 | success = 0; | |
2079 | } | |
2080 | } | |
2081 | else if (strncmp (*mangled, "__t", 3) == 0 | |
2082 | && ((*mangled)[3] == 'i' || (*mangled)[3] == 'f')) | |
2083 | { | |
2084 | p = (*mangled)[3] == 'i' ? " type_info node" : " type_info function"; | |
2085 | (*mangled) += 4; | |
2086 | switch (**mangled) | |
2087 | { | |
2088 | case 'Q': | |
2089 | case 'K': | |
2090 | success = demangle_qualified (work, mangled, declp, 0, 1); | |
2091 | break; | |
2092 | case 't': | |
2093 | success = demangle_template (work, mangled, declp, 0, 1, 1); | |
2094 | break; | |
2095 | default: | |
2096 | success = demangle_fund_type (work, mangled, declp); | |
2097 | break; | |
2098 | } | |
2099 | if (success && **mangled != '\0') | |
2100 | success = 0; | |
2101 | if (success) | |
2102 | string_append (declp, p); | |
2103 | } | |
2104 | else | |
2105 | { | |
2106 | success = 0; | |
2107 | } | |
2108 | return (success); | |
2109 | } | |
2110 | ||
2111 | /* | |
2112 | ||
2113 | LOCAL FUNCTION | |
2114 | ||
2115 | arm_special -- special handling of ARM/lucid mangled strings | |
2116 | ||
2117 | SYNOPSIS | |
2118 | ||
2119 | static int | |
2120 | arm_special (const char **mangled, | |
2121 | string *declp); | |
2122 | ||
2123 | ||
2124 | DESCRIPTION | |
2125 | ||
2126 | Process some special ARM style mangling forms that don't fit | |
2127 | the normal pattern. For example: | |
2128 | ||
2129 | __vtbl__3foo (foo virtual table) | |
2130 | __vtbl__3foo__3bar (bar::foo virtual table) | |
2131 | ||
2132 | */ | |
2133 | ||
2134 | static int | |
2135 | arm_special (mangled, declp) | |
2136 | const char **mangled; | |
2137 | string *declp; | |
2138 | { | |
2139 | int n; | |
2140 | int success = 1; | |
2141 | const char *scan; | |
2142 | ||
2143 | if (strncmp (*mangled, ARM_VTABLE_STRING, ARM_VTABLE_STRLEN) == 0) | |
2144 | { | |
2145 | /* Found a ARM style virtual table, get past ARM_VTABLE_STRING | |
2146 | and create the decl. Note that we consume the entire mangled | |
2147 | input string, which means that demangle_signature has no work | |
2148 | to do. */ | |
2149 | scan = *mangled + ARM_VTABLE_STRLEN; | |
2150 | while (*scan != '\0') /* first check it can be demangled */ | |
2151 | { | |
2152 | n = consume_count (&scan); | |
2153 | if (n==0) | |
2154 | { | |
2155 | return (0); /* no good */ | |
2156 | } | |
2157 | scan += n; | |
2158 | if (scan[0] == '_' && scan[1] == '_') | |
2159 | { | |
2160 | scan += 2; | |
2161 | } | |
2162 | } | |
2163 | (*mangled) += ARM_VTABLE_STRLEN; | |
2164 | while (**mangled != '\0') | |
2165 | { | |
2166 | n = consume_count (mangled); | |
2167 | string_prependn (declp, *mangled, n); | |
2168 | (*mangled) += n; | |
2169 | if ((*mangled)[0] == '_' && (*mangled)[1] == '_') | |
2170 | { | |
2171 | string_prepend (declp, "::"); | |
2172 | (*mangled) += 2; | |
2173 | } | |
2174 | } | |
2175 | string_append (declp, " virtual table"); | |
2176 | } | |
2177 | else | |
2178 | { | |
2179 | success = 0; | |
2180 | } | |
2181 | return (success); | |
2182 | } | |
2183 | ||
2184 | /* | |
2185 | ||
2186 | LOCAL FUNCTION | |
2187 | ||
2188 | demangle_qualified -- demangle 'Q' qualified name strings | |
2189 | ||
2190 | SYNOPSIS | |
2191 | ||
2192 | static int | |
2193 | demangle_qualified (struct work_stuff *, const char *mangled, | |
2194 | string *result, int isfuncname, int append); | |
2195 | ||
2196 | DESCRIPTION | |
2197 | ||
2198 | Demangle a qualified name, such as "Q25Outer5Inner" which is | |
2199 | the mangled form of "Outer::Inner". The demangled output is | |
2200 | prepended or appended to the result string according to the | |
2201 | state of the append flag. | |
2202 | ||
2203 | If isfuncname is nonzero, then the qualified name we are building | |
2204 | is going to be used as a member function name, so if it is a | |
2205 | constructor or destructor function, append an appropriate | |
2206 | constructor or destructor name. I.E. for the above example, | |
2207 | the result for use as a constructor is "Outer::Inner::Inner" | |
2208 | and the result for use as a destructor is "Outer::Inner::~Inner". | |
2209 | ||
2210 | BUGS | |
2211 | ||
2212 | Numeric conversion is ASCII dependent (FIXME). | |
2213 | ||
2214 | */ | |
2215 | ||
2216 | static int | |
2217 | demangle_qualified (work, mangled, result, isfuncname, append) | |
2218 | struct work_stuff *work; | |
2219 | const char **mangled; | |
2220 | string *result; | |
2221 | int isfuncname; | |
2222 | int append; | |
2223 | { | |
2224 | int qualifiers = 0; | |
2225 | int success = 1; | |
2226 | const char *p; | |
2227 | char num[2]; | |
2228 | string temp; | |
2229 | string last_name; | |
2230 | int bindex = register_Btype (work); | |
2231 | ||
2232 | /* We only make use of ISFUNCNAME if the entity is a constructor or | |
2233 | destructor. */ | |
2234 | isfuncname = (isfuncname | |
2235 | && ((work->constructor & 1) || (work->destructor & 1))); | |
2236 | ||
2237 | string_init (&temp); | |
2238 | string_init (&last_name); | |
2239 | ||
2240 | if ((*mangled)[0] == 'K') | |
2241 | { | |
2242 | /* Squangling qualified name reuse */ | |
2243 | int idx; | |
2244 | (*mangled)++; | |
2245 | idx = consume_count_with_underscores (mangled); | |
2246 | if (idx == -1 || idx > work -> numk) | |
2247 | success = 0; | |
2248 | else | |
2249 | string_append (&temp, work -> ktypevec[idx]); | |
2250 | } | |
2251 | else | |
2252 | switch ((*mangled)[1]) | |
2253 | { | |
2254 | case '_': | |
2255 | /* GNU mangled name with more than 9 classes. The count is preceded | |
2256 | by an underscore (to distinguish it from the <= 9 case) and followed | |
2257 | by an underscore. */ | |
2258 | p = *mangled + 2; | |
2259 | qualifiers = atoi (p); | |
2260 | if (!isdigit (*p) || *p == '0') | |
2261 | success = 0; | |
2262 | ||
2263 | /* Skip the digits. */ | |
2264 | while (isdigit (*p)) | |
2265 | ++p; | |
2266 | ||
2267 | if (*p != '_') | |
2268 | success = 0; | |
2269 | ||
2270 | *mangled = p + 1; | |
2271 | break; | |
2272 | ||
2273 | case '1': | |
2274 | case '2': | |
2275 | case '3': | |
2276 | case '4': | |
2277 | case '5': | |
2278 | case '6': | |
2279 | case '7': | |
2280 | case '8': | |
2281 | case '9': | |
2282 | /* The count is in a single digit. */ | |
2283 | num[0] = (*mangled)[1]; | |
2284 | num[1] = '\0'; | |
2285 | qualifiers = atoi (num); | |
2286 | ||
2287 | /* If there is an underscore after the digit, skip it. This is | |
2288 | said to be for ARM-qualified names, but the ARM makes no | |
2289 | mention of such an underscore. Perhaps cfront uses one. */ | |
2290 | if ((*mangled)[2] == '_') | |
2291 | { | |
2292 | (*mangled)++; | |
2293 | } | |
2294 | (*mangled) += 2; | |
2295 | break; | |
2296 | ||
2297 | case '0': | |
2298 | default: | |
2299 | success = 0; | |
2300 | } | |
2301 | ||
2302 | if (!success) | |
2303 | return success; | |
2304 | ||
2305 | /* Pick off the names and collect them in the temp buffer in the order | |
2306 | in which they are found, separated by '::'. */ | |
2307 | ||
2308 | while (qualifiers-- > 0) | |
2309 | { | |
2310 | int remember_K = 1; | |
2311 | string_clear (&last_name); | |
2312 | ||
2313 | if (*mangled[0] == '_') | |
2314 | (*mangled)++; | |
2315 | ||
2316 | if (*mangled[0] == 't') | |
2317 | { | |
2318 | /* Here we always append to TEMP since we will want to use | |
2319 | the template name without the template parameters as a | |
2320 | constructor or destructor name. The appropriate | |
2321 | (parameter-less) value is returned by demangle_template | |
2322 | in LAST_NAME. We do not remember the template type here, | |
2323 | in order to match the G++ mangling algorithm. */ | |
2324 | success = demangle_template(work, mangled, &temp, | |
2325 | &last_name, 1, 0); | |
2326 | if (!success) | |
2327 | break; | |
2328 | } | |
2329 | else if (*mangled[0] == 'K') | |
2330 | { | |
2331 | int idx; | |
2332 | (*mangled)++; | |
2333 | idx = consume_count_with_underscores (mangled); | |
2334 | if (idx == -1 || idx > work->numk) | |
2335 | success = 0; | |
2336 | else | |
2337 | string_append (&temp, work->ktypevec[idx]); | |
2338 | remember_K = 0; | |
2339 | ||
2340 | if (!success) break; | |
2341 | } | |
2342 | else | |
2343 | { | |
2344 | success = do_type (work, mangled, &last_name); | |
2345 | if (!success) | |
2346 | break; | |
2347 | string_appends (&temp, &last_name); | |
2348 | } | |
2349 | ||
2350 | if (remember_K) | |
2351 | remember_Ktype (work, temp.b, LEN_STRING (&temp)); | |
2352 | ||
2353 | if (qualifiers > 0) | |
2354 | string_append (&temp, SCOPE_STRING (work)); | |
2355 | } | |
2356 | ||
2357 | remember_Btype (work, temp.b, LEN_STRING (&temp), bindex); | |
2358 | ||
2359 | /* If we are using the result as a function name, we need to append | |
2360 | the appropriate '::' separated constructor or destructor name. | |
2361 | We do this here because this is the most convenient place, where | |
2362 | we already have a pointer to the name and the length of the name. */ | |
2363 | ||
2364 | if (isfuncname) | |
2365 | { | |
2366 | string_append (&temp, SCOPE_STRING (work)); | |
2367 | if (work -> destructor & 1) | |
2368 | string_append (&temp, "~"); | |
2369 | string_appends (&temp, &last_name); | |
2370 | } | |
2371 | ||
2372 | /* Now either prepend the temp buffer to the result, or append it, | |
2373 | depending upon the state of the append flag. */ | |
2374 | ||
2375 | if (append) | |
2376 | string_appends (result, &temp); | |
2377 | else | |
2378 | { | |
2379 | if (!STRING_EMPTY (result)) | |
2380 | string_append (&temp, SCOPE_STRING (work)); | |
2381 | string_prepends (result, &temp); | |
2382 | } | |
2383 | ||
2384 | string_delete (&last_name); | |
2385 | string_delete (&temp); | |
2386 | return (success); | |
2387 | } | |
2388 | ||
2389 | /* | |
2390 | ||
2391 | LOCAL FUNCTION | |
2392 | ||
2393 | get_count -- convert an ascii count to integer, consuming tokens | |
2394 | ||
2395 | SYNOPSIS | |
2396 | ||
2397 | static int | |
2398 | get_count (const char **type, int *count) | |
2399 | ||
2400 | DESCRIPTION | |
2401 | ||
2402 | Return 0 if no conversion is performed, 1 if a string is converted. | |
2403 | */ | |
2404 | ||
2405 | static int | |
2406 | get_count (type, count) | |
2407 | const char **type; | |
2408 | int *count; | |
2409 | { | |
2410 | const char *p; | |
2411 | int n; | |
2412 | ||
2413 | if (!isdigit (**type)) | |
2414 | { | |
2415 | return (0); | |
2416 | } | |
2417 | else | |
2418 | { | |
2419 | *count = **type - '0'; | |
2420 | (*type)++; | |
2421 | if (isdigit (**type)) | |
2422 | { | |
2423 | p = *type; | |
2424 | n = *count; | |
2425 | do | |
2426 | { | |
2427 | n *= 10; | |
2428 | n += *p - '0'; | |
2429 | p++; | |
2430 | } | |
2431 | while (isdigit (*p)); | |
2432 | if (*p == '_') | |
2433 | { | |
2434 | *type = p + 1; | |
2435 | *count = n; | |
2436 | } | |
2437 | } | |
2438 | } | |
2439 | return (1); | |
2440 | } | |
2441 | ||
2442 | /* RESULT will be initialised here; it will be freed on failure. The | |
2443 | value returned is really a type_kind_t. */ | |
2444 | ||
2445 | static int | |
2446 | do_type (work, mangled, result) | |
2447 | struct work_stuff *work; | |
2448 | const char **mangled; | |
2449 | string *result; | |
2450 | { | |
2451 | int n; | |
2452 | int done; | |
2453 | int success; | |
2454 | string decl; | |
2455 | const char *remembered_type; | |
2456 | int constp; | |
2457 | int volatilep; | |
2458 | string btype; | |
2459 | type_kind_t tk = tk_none; | |
2460 | ||
2461 | string_init (&btype); | |
2462 | string_init (&decl); | |
2463 | string_init (result); | |
2464 | ||
2465 | done = 0; | |
2466 | success = 1; | |
2467 | while (success && !done) | |
2468 | { | |
2469 | int member; | |
2470 | switch (**mangled) | |
2471 | { | |
2472 | ||
2473 | /* A pointer type */ | |
2474 | case 'P': | |
2475 | case 'p': | |
2476 | (*mangled)++; | |
2477 | string_prepend (&decl, "*"); | |
2478 | if (tk == tk_none) | |
2479 | tk = tk_pointer; | |
2480 | break; | |
2481 | ||
2482 | /* A reference type */ | |
2483 | case 'R': | |
2484 | (*mangled)++; | |
2485 | string_prepend (&decl, "&"); | |
2486 | if (tk == tk_none) | |
2487 | tk = tk_pointer; | |
2488 | break; | |
2489 | ||
2490 | /* An array */ | |
2491 | case 'A': | |
2492 | { | |
2493 | ++(*mangled); | |
2494 | if (!STRING_EMPTY (&decl) | |
2495 | && (decl.b[0] == '*' || decl.b[0] == '&')) | |
2496 | { | |
2497 | string_prepend (&decl, "("); | |
2498 | string_append (&decl, ")"); | |
2499 | } | |
2500 | string_append (&decl, "["); | |
2501 | if (**mangled != '_') | |
2502 | success = demangle_template_value_parm (work, mangled, &decl, | |
2503 | tk_integral); | |
2504 | if (**mangled == '_') | |
2505 | ++(*mangled); | |
2506 | string_append (&decl, "]"); | |
2507 | break; | |
2508 | } | |
2509 | ||
2510 | /* A back reference to a previously seen type */ | |
2511 | case 'T': | |
2512 | (*mangled)++; | |
2513 | if (!get_count (mangled, &n) || n >= work -> ntypes) | |
2514 | { | |
2515 | success = 0; | |
2516 | } | |
2517 | else | |
2518 | { | |
2519 | remembered_type = work -> typevec[n]; | |
2520 | mangled = &remembered_type; | |
2521 | } | |
2522 | break; | |
2523 | ||
2524 | /* A function */ | |
2525 | case 'F': | |
2526 | (*mangled)++; | |
2527 | if (!STRING_EMPTY (&decl) | |
2528 | && (decl.b[0] == '*' || decl.b[0] == '&')) | |
2529 | { | |
2530 | string_prepend (&decl, "("); | |
2531 | string_append (&decl, ")"); | |
2532 | } | |
2533 | /* After picking off the function args, we expect to either find the | |
2534 | function return type (preceded by an '_') or the end of the | |
2535 | string. */ | |
2536 | if (!demangle_nested_args (work, mangled, &decl) | |
2537 | || (**mangled != '_' && **mangled != '\0')) | |
2538 | { | |
2539 | success = 0; | |
2540 | break; | |
2541 | } | |
2542 | if (success && (**mangled == '_')) | |
2543 | (*mangled)++; | |
2544 | break; | |
2545 | ||
2546 | case 'M': | |
2547 | case 'O': | |
2548 | { | |
2549 | constp = 0; | |
2550 | volatilep = 0; | |
2551 | ||
2552 | member = **mangled == 'M'; | |
2553 | (*mangled)++; | |
2554 | if (!isdigit (**mangled) && **mangled != 't') | |
2555 | { | |
2556 | success = 0; | |
2557 | break; | |
2558 | } | |
2559 | ||
2560 | string_append (&decl, ")"); | |
2561 | string_prepend (&decl, SCOPE_STRING (work)); | |
2562 | if (isdigit (**mangled)) | |
2563 | { | |
2564 | n = consume_count (mangled); | |
2565 | if (strlen (*mangled) < n) | |
2566 | { | |
2567 | success = 0; | |
2568 | break; | |
2569 | } | |
2570 | string_prependn (&decl, *mangled, n); | |
2571 | *mangled += n; | |
2572 | } | |
2573 | else | |
2574 | { | |
2575 | string temp; | |
2576 | string_init (&temp); | |
2577 | success = demangle_template (work, mangled, &temp, | |
2578 | NULL, 1, 1); | |
2579 | if (success) | |
2580 | { | |
2581 | string_prependn (&decl, temp.b, temp.p - temp.b); | |
2582 | string_clear (&temp); | |
2583 | } | |
2584 | else | |
2585 | break; | |
2586 | } | |
2587 | string_prepend (&decl, "("); | |
2588 | if (member) | |
2589 | { | |
2590 | if (**mangled == 'C') | |
2591 | { | |
2592 | (*mangled)++; | |
2593 | constp = 1; | |
2594 | } | |
2595 | if (**mangled == 'V') | |
2596 | { | |
2597 | (*mangled)++; | |
2598 | volatilep = 1; | |
2599 | } | |
2600 | if (*(*mangled)++ != 'F') | |
2601 | { | |
2602 | success = 0; | |
2603 | break; | |
2604 | } | |
2605 | } | |
2606 | if ((member && !demangle_nested_args (work, mangled, &decl)) | |
2607 | || **mangled != '_') | |
2608 | { | |
2609 | success = 0; | |
2610 | break; | |
2611 | } | |
2612 | (*mangled)++; | |
2613 | if (! PRINT_ANSI_QUALIFIERS) | |
2614 | { | |
2615 | break; | |
2616 | } | |
2617 | if (constp) | |
2618 | { | |
2619 | APPEND_BLANK (&decl); | |
2620 | string_append (&decl, "const"); | |
2621 | } | |
2622 | if (volatilep) | |
2623 | { | |
2624 | APPEND_BLANK (&decl); | |
2625 | string_append (&decl, "volatile"); | |
2626 | } | |
2627 | break; | |
2628 | } | |
2629 | case 'G': | |
2630 | (*mangled)++; | |
2631 | break; | |
2632 | ||
2633 | case 'C': | |
2634 | case 'V': | |
2635 | /* | |
2636 | if ((*mangled)[1] == 'P') | |
2637 | { | |
2638 | */ | |
2639 | if (PRINT_ANSI_QUALIFIERS) | |
2640 | { | |
2641 | if (!STRING_EMPTY (&decl)) | |
2642 | { | |
2643 | string_prepend (&decl, " "); | |
2644 | } | |
2645 | string_prepend (&decl, | |
2646 | (**mangled) == 'C' ? "const" : "volatile"); | |
2647 | } | |
2648 | (*mangled)++; | |
2649 | break; | |
2650 | /* | |
2651 | } | |
2652 | */ | |
2653 | ||
2654 | /* fall through */ | |
2655 | default: | |
2656 | done = 1; | |
2657 | break; | |
2658 | } | |
2659 | } | |
2660 | ||
2661 | if (success) switch (**mangled) | |
2662 | { | |
2663 | /* A qualified name, such as "Outer::Inner". */ | |
2664 | case 'Q': | |
2665 | case 'K': | |
2666 | { | |
2667 | success = demangle_qualified (work, mangled, result, 0, 1); | |
2668 | break; | |
2669 | } | |
2670 | ||
2671 | /* A back reference to a previously seen squangled type */ | |
2672 | case 'B': | |
2673 | (*mangled)++; | |
2674 | if (!get_count (mangled, &n) || n >= work -> numb) | |
2675 | success = 0; | |
2676 | else | |
2677 | string_append (result, work->btypevec[n]); | |
2678 | break; | |
2679 | ||
2680 | case 'X': | |
2681 | case 'Y': | |
2682 | /* A template parm. We substitute the corresponding argument. */ | |
2683 | { | |
2684 | int idx; | |
2685 | ||
2686 | (*mangled)++; | |
2687 | idx = consume_count_with_underscores (mangled); | |
2688 | ||
2689 | if (idx == -1 | |
2690 | || (work->tmpl_argvec && idx >= work->ntmpl_args) | |
2691 | || consume_count_with_underscores (mangled) == -1) | |
2692 | { | |
2693 | success = 0; | |
2694 | break; | |
2695 | } | |
2696 | ||
2697 | if (work->tmpl_argvec) | |
2698 | string_append (result, work->tmpl_argvec[idx]); | |
2699 | else | |
2700 | { | |
2701 | char buf[10]; | |
2702 | sprintf(buf, "T%d", idx); | |
2703 | string_append (result, buf); | |
2704 | } | |
2705 | ||
2706 | success = 1; | |
2707 | } | |
2708 | break; | |
2709 | ||
2710 | default: | |
2711 | success = demangle_fund_type (work, mangled, result); | |
2712 | if (tk == tk_none) | |
2713 | tk = (type_kind_t) success; | |
2714 | break; | |
2715 | } | |
2716 | ||
2717 | if (success) | |
2718 | { | |
2719 | if (!STRING_EMPTY (&decl)) | |
2720 | { | |
2721 | string_append (result, " "); | |
2722 | string_appends (result, &decl); | |
2723 | } | |
2724 | } | |
2725 | else | |
2726 | string_delete (result); | |
2727 | string_delete (&decl); | |
2728 | ||
2729 | if (success) | |
2730 | /* Assume an integral type, if we're not sure. */ | |
2731 | return (int) ((tk == tk_none) ? tk_integral : tk); | |
2732 | else | |
2733 | return 0; | |
2734 | } | |
2735 | ||
2736 | /* Given a pointer to a type string that represents a fundamental type | |
2737 | argument (int, long, unsigned int, etc) in TYPE, a pointer to the | |
2738 | string in which the demangled output is being built in RESULT, and | |
2739 | the WORK structure, decode the types and add them to the result. | |
2740 | ||
2741 | For example: | |
2742 | ||
2743 | "Ci" => "const int" | |
2744 | "Sl" => "signed long" | |
2745 | "CUs" => "const unsigned short" | |
2746 | ||
2747 | The value returned is really a type_kind_t. */ | |
2748 | ||
2749 | static int | |
2750 | demangle_fund_type (work, mangled, result) | |
2751 | struct work_stuff *work; | |
2752 | const char **mangled; | |
2753 | string *result; | |
2754 | { | |
2755 | int done = 0; | |
2756 | int success = 1; | |
2757 | string btype; | |
2758 | type_kind_t tk = tk_integral; | |
2759 | ||
2760 | string_init (&btype); | |
2761 | ||
2762 | /* First pick off any type qualifiers. There can be more than one. */ | |
2763 | ||
2764 | while (!done) | |
2765 | { | |
2766 | switch (**mangled) | |
2767 | { | |
2768 | case 'C': | |
2769 | (*mangled)++; | |
2770 | if (PRINT_ANSI_QUALIFIERS) | |
2771 | { | |
2772 | APPEND_BLANK (result); | |
2773 | string_append (result, "const"); | |
2774 | } | |
2775 | break; | |
2776 | case 'U': | |
2777 | (*mangled)++; | |
2778 | APPEND_BLANK (result); | |
2779 | string_append (result, "unsigned"); | |
2780 | break; | |
2781 | case 'S': /* signed char only */ | |
2782 | (*mangled)++; | |
2783 | APPEND_BLANK (result); | |
2784 | string_append (result, "signed"); | |
2785 | break; | |
2786 | case 'V': | |
2787 | (*mangled)++; | |
2788 | if (PRINT_ANSI_QUALIFIERS) | |
2789 | { | |
2790 | APPEND_BLANK (result); | |
2791 | string_append (result, "volatile"); | |
2792 | } | |
2793 | break; | |
2794 | case 'J': | |
2795 | (*mangled)++; | |
2796 | APPEND_BLANK (result); | |
2797 | string_append (result, "__complex"); | |
2798 | break; | |
2799 | default: | |
2800 | done = 1; | |
2801 | break; | |
2802 | } | |
2803 | } | |
2804 | ||
2805 | /* Now pick off the fundamental type. There can be only one. */ | |
2806 | ||
2807 | switch (**mangled) | |
2808 | { | |
2809 | case '\0': | |
2810 | case '_': | |
2811 | break; | |
2812 | case 'v': | |
2813 | (*mangled)++; | |
2814 | APPEND_BLANK (result); | |
2815 | string_append (result, "void"); | |
2816 | break; | |
2817 | case 'x': | |
2818 | (*mangled)++; | |
2819 | APPEND_BLANK (result); | |
2820 | string_append (result, "long long"); | |
2821 | break; | |
2822 | case 'l': | |
2823 | (*mangled)++; | |
2824 | APPEND_BLANK (result); | |
2825 | string_append (result, "long"); | |
2826 | break; | |
2827 | case 'i': | |
2828 | (*mangled)++; | |
2829 | APPEND_BLANK (result); | |
2830 | string_append (result, "int"); | |
2831 | break; | |
2832 | case 's': | |
2833 | (*mangled)++; | |
2834 | APPEND_BLANK (result); | |
2835 | string_append (result, "short"); | |
2836 | break; | |
2837 | case 'b': | |
2838 | (*mangled)++; | |
2839 | APPEND_BLANK (result); | |
2840 | string_append (result, "bool"); | |
2841 | tk = tk_bool; | |
2842 | break; | |
2843 | case 'c': | |
2844 | (*mangled)++; | |
2845 | APPEND_BLANK (result); | |
2846 | string_append (result, "char"); | |
2847 | tk = tk_char; | |
2848 | break; | |
2849 | case 'w': | |
2850 | (*mangled)++; | |
2851 | APPEND_BLANK (result); | |
2852 | string_append (result, "wchar_t"); | |
2853 | tk = tk_char; | |
2854 | break; | |
2855 | case 'r': | |
2856 | (*mangled)++; | |
2857 | APPEND_BLANK (result); | |
2858 | string_append (result, "long double"); | |
2859 | tk = tk_real; | |
2860 | break; | |
2861 | case 'd': | |
2862 | (*mangled)++; | |
2863 | APPEND_BLANK (result); | |
2864 | string_append (result, "double"); | |
2865 | tk = tk_real; | |
2866 | break; | |
2867 | case 'f': | |
2868 | (*mangled)++; | |
2869 | APPEND_BLANK (result); | |
2870 | string_append (result, "float"); | |
2871 | tk = tk_real; | |
2872 | break; | |
2873 | case 'G': | |
2874 | (*mangled)++; | |
2875 | if (!isdigit (**mangled)) | |
2876 | { | |
2877 | success = 0; | |
2878 | break; | |
2879 | } | |
2880 | /* fall through */ | |
2881 | /* An explicit type, such as "6mytype" or "7integer" */ | |
2882 | case '0': | |
2883 | case '1': | |
2884 | case '2': | |
2885 | case '3': | |
2886 | case '4': | |
2887 | case '5': | |
2888 | case '6': | |
2889 | case '7': | |
2890 | case '8': | |
2891 | case '9': | |
2892 | { | |
2893 | int bindex = register_Btype (work); | |
2894 | string btype; | |
2895 | string_init (&btype); | |
2896 | if (demangle_class_name (work, mangled, &btype)) { | |
2897 | remember_Btype (work, btype.b, LEN_STRING (&btype), bindex); | |
2898 | APPEND_BLANK (result); | |
2899 | string_appends (result, &btype); | |
2900 | } | |
2901 | else | |
2902 | success = 0; | |
2903 | string_delete (&btype); | |
2904 | break; | |
2905 | } | |
2906 | case 't': | |
2907 | { | |
2908 | success = demangle_template (work, mangled, &btype, 0, 1, 1); | |
2909 | string_appends (result, &btype); | |
2910 | break; | |
2911 | } | |
2912 | default: | |
2913 | success = 0; | |
2914 | break; | |
2915 | } | |
2916 | ||
2917 | return success ? ((int) tk) : 0; | |
2918 | } | |
2919 | ||
2920 | /* Demangle the next argument, given by MANGLED into RESULT, which | |
2921 | *should be an uninitialized* string. It will be initialized here, | |
2922 | and free'd should anything go wrong. */ | |
2923 | ||
2924 | static int | |
2925 | do_arg (work, mangled, result) | |
2926 | struct work_stuff *work; | |
2927 | const char **mangled; | |
2928 | string *result; | |
2929 | { | |
2930 | /* Remember where we started so that we can record the type, for | |
2931 | non-squangling type remembering. */ | |
2932 | const char *start = *mangled; | |
2933 | ||
2934 | string_init (result); | |
2935 | ||
2936 | if (work->nrepeats > 0) | |
2937 | { | |
2938 | --work->nrepeats; | |
2939 | ||
2940 | if (work->previous_argument == 0) | |
2941 | return 0; | |
2942 | ||
2943 | /* We want to reissue the previous type in this argument list. */ | |
2944 | string_appends (result, work->previous_argument); | |
2945 | return 1; | |
2946 | } | |
2947 | ||
2948 | if (**mangled == 'n') | |
2949 | { | |
2950 | /* A squangling-style repeat. */ | |
2951 | (*mangled)++; | |
2952 | work->nrepeats = consume_count(mangled); | |
2953 | ||
2954 | if (work->nrepeats == 0) | |
2955 | /* This was not a repeat count after all. */ | |
2956 | return 0; | |
2957 | ||
2958 | if (work->nrepeats > 9) | |
2959 | { | |
2960 | if (**mangled != '_') | |
2961 | /* The repeat count should be followed by an '_' in this | |
2962 | case. */ | |
2963 | return 0; | |
2964 | else | |
2965 | (*mangled)++; | |
2966 | } | |
2967 | ||
2968 | /* Now, the repeat is all set up. */ | |
2969 | return do_arg (work, mangled, result); | |
2970 | } | |
2971 | ||
2972 | /* Save the result in WORK->previous_argument so that we can find it | |
2973 | if it's repeated. Note that saving START is not good enough: we | |
2974 | do not want to add additional types to the back-referenceable | |
2975 | type vector when processing a repeated type. */ | |
2976 | if (work->previous_argument) | |
2977 | string_clear (work->previous_argument); | |
2978 | else | |
2979 | { | |
2980 | work->previous_argument = (string*) xmalloc (sizeof (string)); | |
2981 | string_init (work->previous_argument); | |
2982 | } | |
2983 | ||
2984 | if (!do_type (work, mangled, work->previous_argument)) | |
2985 | return 0; | |
2986 | ||
2987 | string_appends (result, work->previous_argument); | |
2988 | ||
2989 | remember_type (work, start, *mangled - start); | |
2990 | return 1; | |
2991 | } | |
2992 | ||
2993 | static void | |
2994 | remember_type (work, start, len) | |
2995 | struct work_stuff *work; | |
2996 | const char *start; | |
2997 | int len; | |
2998 | { | |
2999 | char *tem; | |
3000 | ||
3001 | if (work->forgetting_types) | |
3002 | return; | |
3003 | ||
3004 | if (work -> ntypes >= work -> typevec_size) | |
3005 | { | |
3006 | if (work -> typevec_size == 0) | |
3007 | { | |
3008 | work -> typevec_size = 3; | |
3009 | work -> typevec | |
3010 | = (char **) xmalloc (sizeof (char *) * work -> typevec_size); | |
3011 | } | |
3012 | else | |
3013 | { | |
3014 | work -> typevec_size *= 2; | |
3015 | work -> typevec | |
3016 | = (char **) xrealloc ((char *)work -> typevec, | |
3017 | sizeof (char *) * work -> typevec_size); | |
3018 | } | |
3019 | } | |
3020 | tem = xmalloc (len + 1); | |
3021 | memcpy (tem, start, len); | |
3022 | tem[len] = '\0'; | |
3023 | work -> typevec[work -> ntypes++] = tem; | |
3024 | } | |
3025 | ||
3026 | ||
3027 | /* Remember a K type class qualifier. */ | |
3028 | static void | |
3029 | remember_Ktype (work, start, len) | |
3030 | struct work_stuff *work; | |
3031 | const char *start; | |
3032 | int len; | |
3033 | { | |
3034 | char *tem; | |
3035 | ||
3036 | if (work -> numk >= work -> ksize) | |
3037 | { | |
3038 | if (work -> ksize == 0) | |
3039 | { | |
3040 | work -> ksize = 5; | |
3041 | work -> ktypevec | |
3042 | = (char **) xmalloc (sizeof (char *) * work -> ksize); | |
3043 | } | |
3044 | else | |
3045 | { | |
3046 | work -> ksize *= 2; | |
3047 | work -> ktypevec | |
3048 | = (char **) xrealloc ((char *)work -> ktypevec, | |
3049 | sizeof (char *) * work -> ksize); | |
3050 | } | |
3051 | } | |
3052 | tem = xmalloc (len + 1); | |
3053 | memcpy (tem, start, len); | |
3054 | tem[len] = '\0'; | |
3055 | work -> ktypevec[work -> numk++] = tem; | |
3056 | } | |
3057 | ||
3058 | /* Register a B code, and get an index for it. B codes are registered | |
3059 | as they are seen, rather than as they are completed, so map<temp<char> > | |
3060 | registers map<temp<char> > as B0, and temp<char> as B1 */ | |
3061 | ||
3062 | static int | |
3063 | register_Btype (work) | |
3064 | struct work_stuff *work; | |
3065 | { | |
3066 | int ret; | |
3067 | ||
3068 | if (work -> numb >= work -> bsize) | |
3069 | { | |
3070 | if (work -> bsize == 0) | |
3071 | { | |
3072 | work -> bsize = 5; | |
3073 | work -> btypevec | |
3074 | = (char **) xmalloc (sizeof (char *) * work -> bsize); | |
3075 | } | |
3076 | else | |
3077 | { | |
3078 | work -> bsize *= 2; | |
3079 | work -> btypevec | |
3080 | = (char **) xrealloc ((char *)work -> btypevec, | |
3081 | sizeof (char *) * work -> bsize); | |
3082 | } | |
3083 | } | |
3084 | ret = work -> numb++; | |
3085 | work -> btypevec[ret] = NULL; | |
3086 | return(ret); | |
3087 | } | |
3088 | ||
3089 | /* Store a value into a previously registered B code type. */ | |
3090 | ||
3091 | static void | |
3092 | remember_Btype (work, start, len, index) | |
3093 | struct work_stuff *work; | |
3094 | const char *start; | |
3095 | int len, index; | |
3096 | { | |
3097 | char *tem; | |
3098 | ||
3099 | tem = xmalloc (len + 1); | |
3100 | memcpy (tem, start, len); | |
3101 | tem[len] = '\0'; | |
3102 | work -> btypevec[index] = tem; | |
3103 | } | |
3104 | ||
3105 | /* Lose all the info related to B and K type codes. */ | |
3106 | static void | |
3107 | forget_B_and_K_types (work) | |
3108 | struct work_stuff *work; | |
3109 | { | |
3110 | int i; | |
3111 | ||
3112 | while (work -> numk > 0) | |
3113 | { | |
3114 | i = --(work -> numk); | |
3115 | if (work -> ktypevec[i] != NULL) | |
3116 | { | |
3117 | free (work -> ktypevec[i]); | |
3118 | work -> ktypevec[i] = NULL; | |
3119 | } | |
3120 | } | |
3121 | ||
3122 | while (work -> numb > 0) | |
3123 | { | |
3124 | i = --(work -> numb); | |
3125 | if (work -> btypevec[i] != NULL) | |
3126 | { | |
3127 | free (work -> btypevec[i]); | |
3128 | work -> btypevec[i] = NULL; | |
3129 | } | |
3130 | } | |
3131 | } | |
3132 | /* Forget the remembered types, but not the type vector itself. */ | |
3133 | ||
3134 | static void | |
3135 | forget_types (work) | |
3136 | struct work_stuff *work; | |
3137 | { | |
3138 | int i; | |
3139 | ||
3140 | while (work -> ntypes > 0) | |
3141 | { | |
3142 | i = --(work -> ntypes); | |
3143 | if (work -> typevec[i] != NULL) | |
3144 | { | |
3145 | free (work -> typevec[i]); | |
3146 | work -> typevec[i] = NULL; | |
3147 | } | |
3148 | } | |
3149 | } | |
3150 | ||
3151 | /* Process the argument list part of the signature, after any class spec | |
3152 | has been consumed, as well as the first 'F' character (if any). For | |
3153 | example: | |
3154 | ||
3155 | "__als__3fooRT0" => process "RT0" | |
3156 | "complexfunc5__FPFPc_PFl_i" => process "PFPc_PFl_i" | |
3157 | ||
3158 | DECLP must be already initialised, usually non-empty. It won't be freed | |
3159 | on failure. | |
3160 | ||
3161 | Note that g++ differs significantly from ARM and lucid style mangling | |
3162 | with regards to references to previously seen types. For example, given | |
3163 | the source fragment: | |
3164 | ||
3165 | class foo { | |
3166 | public: | |
3167 | foo::foo (int, foo &ia, int, foo &ib, int, foo &ic); | |
3168 | }; | |
3169 | ||
3170 | foo::foo (int, foo &ia, int, foo &ib, int, foo &ic) { ia = ib = ic; } | |
3171 | void foo (int, foo &ia, int, foo &ib, int, foo &ic) { ia = ib = ic; } | |
3172 | ||
3173 | g++ produces the names: | |
3174 | ||
3175 | __3fooiRT0iT2iT2 | |
3176 | foo__FiR3fooiT1iT1 | |
3177 | ||
3178 | while lcc (and presumably other ARM style compilers as well) produces: | |
3179 | ||
3180 | foo__FiR3fooT1T2T1T2 | |
3181 | __ct__3fooFiR3fooT1T2T1T2 | |
3182 | ||
3183 | Note that g++ bases its type numbers starting at zero and counts all | |
3184 | previously seen types, while lucid/ARM bases its type numbers starting | |
3185 | at one and only considers types after it has seen the 'F' character | |
3186 | indicating the start of the function args. For lucid/ARM style, we | |
3187 | account for this difference by discarding any previously seen types when | |
3188 | we see the 'F' character, and subtracting one from the type number | |
3189 | reference. | |
3190 | ||
3191 | */ | |
3192 | ||
3193 | static int | |
3194 | demangle_args (work, mangled, declp) | |
3195 | struct work_stuff *work; | |
3196 | const char **mangled; | |
3197 | string *declp; | |
3198 | { | |
3199 | string arg; | |
3200 | int need_comma = 0; | |
3201 | int r; | |
3202 | int t; | |
3203 | const char *tem; | |
3204 | char temptype; | |
3205 | ||
3206 | if (PRINT_ARG_TYPES) | |
3207 | { | |
3208 | string_append (declp, "("); | |
3209 | if (**mangled == '\0') | |
3210 | { | |
3211 | string_append (declp, "void"); | |
3212 | } | |
3213 | } | |
3214 | ||
3215 | while ((**mangled != '_' && **mangled != '\0' && **mangled != 'e') | |
3216 | || work->nrepeats > 0) | |
3217 | { | |
3218 | if ((**mangled == 'N') || (**mangled == 'T')) | |
3219 | { | |
3220 | temptype = *(*mangled)++; | |
3221 | ||
3222 | if (temptype == 'N') | |
3223 | { | |
3224 | if (!get_count (mangled, &r)) | |
3225 | { | |
3226 | return (0); | |
3227 | } | |
3228 | } | |
3229 | else | |
3230 | { | |
3231 | r = 1; | |
3232 | } | |
3233 | if (ARM_DEMANGLING && work -> ntypes >= 10) | |
3234 | { | |
3235 | /* If we have 10 or more types we might have more than a 1 digit | |
3236 | index so we'll have to consume the whole count here. This | |
3237 | will lose if the next thing is a type name preceded by a | |
3238 | count but it's impossible to demangle that case properly | |
3239 | anyway. Eg if we already have 12 types is T12Pc "(..., type1, | |
3240 | Pc, ...)" or "(..., type12, char *, ...)" */ | |
3241 | if ((t = consume_count(mangled)) == 0) | |
3242 | { | |
3243 | return (0); | |
3244 | } | |
3245 | } | |
3246 | else | |
3247 | { | |
3248 | if (!get_count (mangled, &t)) | |
3249 | { | |
3250 | return (0); | |
3251 | } | |
3252 | } | |
3253 | if (LUCID_DEMANGLING || ARM_DEMANGLING) | |
3254 | { | |
3255 | t--; | |
3256 | } | |
3257 | /* Validate the type index. Protect against illegal indices from | |
3258 | malformed type strings. */ | |
3259 | if ((t < 0) || (t >= work -> ntypes)) | |
3260 | { | |
3261 | return (0); | |
3262 | } | |
3263 | while (work->nrepeats > 0 || --r >= 0) | |
3264 | { | |
3265 | tem = work -> typevec[t]; | |
3266 | if (need_comma && PRINT_ARG_TYPES) | |
3267 | { | |
3268 | string_append (declp, ", "); | |
3269 | } | |
3270 | if (!do_arg (work, &tem, &arg)) | |
3271 | { | |
3272 | return (0); | |
3273 | } | |
3274 | if (PRINT_ARG_TYPES) | |
3275 | { | |
3276 | string_appends (declp, &arg); | |
3277 | } | |
3278 | string_delete (&arg); | |
3279 | need_comma = 1; | |
3280 | } | |
3281 | } | |
3282 | else | |
3283 | { | |
3284 | if (need_comma && PRINT_ARG_TYPES) | |
3285 | string_append (declp, ", "); | |
3286 | if (!do_arg (work, mangled, &arg)) | |
3287 | return (0); | |
3288 | if (PRINT_ARG_TYPES) | |
3289 | string_appends (declp, &arg); | |
3290 | string_delete (&arg); | |
3291 | need_comma = 1; | |
3292 | } | |
3293 | } | |
3294 | ||
3295 | if (**mangled == 'e') | |
3296 | { | |
3297 | (*mangled)++; | |
3298 | if (PRINT_ARG_TYPES) | |
3299 | { | |
3300 | if (need_comma) | |
3301 | { | |
3302 | string_append (declp, ","); | |
3303 | } | |
3304 | string_append (declp, "..."); | |
3305 | } | |
3306 | } | |
3307 | ||
3308 | if (PRINT_ARG_TYPES) | |
3309 | { | |
3310 | string_append (declp, ")"); | |
3311 | } | |
3312 | return (1); | |
3313 | } | |
3314 | ||
3315 | /* Like demangle_args, but for demangling the argument lists of function | |
3316 | and method pointers or references, not top-level declarations. */ | |
3317 | ||
3318 | static int | |
3319 | demangle_nested_args (work, mangled, declp) | |
3320 | struct work_stuff *work; | |
3321 | const char **mangled; | |
3322 | string *declp; | |
3323 | { | |
3324 | string* saved_previous_argument; | |
3325 | int result; | |
3326 | int saved_nrepeats; | |
3327 | ||
3328 | /* The G++ name-mangling algorithm does not remember types on nested | |
3329 | argument lists, unless -fsquangling is used, and in that case the | |
3330 | type vector updated by remember_type is not used. So, we turn | |
3331 | off remembering of types here. */ | |
3332 | ++work->forgetting_types; | |
3333 | ||
3334 | /* For the repeat codes used with -fsquangling, we must keep track of | |
3335 | the last argument. */ | |
3336 | saved_previous_argument = work->previous_argument; | |
3337 | saved_nrepeats = work->nrepeats; | |
3338 | work->previous_argument = 0; | |
3339 | work->nrepeats = 0; | |
3340 | ||
3341 | /* Actually demangle the arguments. */ | |
3342 | result = demangle_args (work, mangled, declp); | |
3343 | ||
3344 | /* Restore the previous_argument field. */ | |
3345 | if (work->previous_argument) | |
3346 | string_delete (work->previous_argument); | |
3347 | work->previous_argument = saved_previous_argument; | |
3348 | work->nrepeats = saved_nrepeats; | |
3349 | ||
3350 | return result; | |
3351 | } | |
3352 | ||
3353 | static void | |
3354 | demangle_function_name (work, mangled, declp, scan) | |
3355 | struct work_stuff *work; | |
3356 | const char **mangled; | |
3357 | string *declp; | |
3358 | const char *scan; | |
3359 | { | |
3360 | size_t i; | |
3361 | string type; | |
3362 | const char *tem; | |
3363 | ||
3364 | string_appendn (declp, (*mangled), scan - (*mangled)); | |
3365 | string_need (declp, 1); | |
3366 | *(declp -> p) = '\0'; | |
3367 | ||
3368 | /* Consume the function name, including the "__" separating the name | |
3369 | from the signature. We are guaranteed that SCAN points to the | |
3370 | separator. */ | |
3371 | ||
3372 | (*mangled) = scan + 2; | |
3373 | ||
3374 | if (LUCID_DEMANGLING || ARM_DEMANGLING) | |
3375 | { | |
3376 | ||
3377 | /* See if we have an ARM style constructor or destructor operator. | |
3378 | If so, then just record it, clear the decl, and return. | |
3379 | We can't build the actual constructor/destructor decl until later, | |
3380 | when we recover the class name from the signature. */ | |
3381 | ||
3382 | if (strcmp (declp -> b, "__ct") == 0) | |
3383 | { | |
3384 | work -> constructor += 1; | |
3385 | string_clear (declp); | |
3386 | return; | |
3387 | } | |
3388 | else if (strcmp (declp -> b, "__dt") == 0) | |
3389 | { | |
3390 | work -> destructor += 1; | |
3391 | string_clear (declp); | |
3392 | return; | |
3393 | } | |
3394 | } | |
3395 | ||
3396 | if (declp->p - declp->b >= 3 | |
3397 | && declp->b[0] == 'o' | |
3398 | && declp->b[1] == 'p' | |
3399 | && strchr (cplus_markers, declp->b[2]) != NULL) | |
3400 | { | |
3401 | /* see if it's an assignment expression */ | |
3402 | if (declp->p - declp->b >= 10 /* op$assign_ */ | |
3403 | && memcmp (declp->b + 3, "assign_", 7) == 0) | |
3404 | { | |
3405 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) | |
3406 | { | |
3407 | int len = declp->p - declp->b - 10; | |
3408 | if (strlen (optable[i].in) == len | |
3409 | && memcmp (optable[i].in, declp->b + 10, len) == 0) | |
3410 | { | |
3411 | string_clear (declp); | |
3412 | string_append (declp, "operator"); | |
3413 | string_append (declp, optable[i].out); | |
3414 | string_append (declp, "="); | |
3415 | break; | |
3416 | } | |
3417 | } | |
3418 | } | |
3419 | else | |
3420 | { | |
3421 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) | |
3422 | { | |
3423 | int len = declp->p - declp->b - 3; | |
3424 | if (strlen (optable[i].in) == len | |
3425 | && memcmp (optable[i].in, declp->b + 3, len) == 0) | |
3426 | { | |
3427 | string_clear (declp); | |
3428 | string_append (declp, "operator"); | |
3429 | string_append (declp, optable[i].out); | |
3430 | break; | |
3431 | } | |
3432 | } | |
3433 | } | |
3434 | } | |
3435 | else if (declp->p - declp->b >= 5 && memcmp (declp->b, "type", 4) == 0 | |
3436 | && strchr (cplus_markers, declp->b[4]) != NULL) | |
3437 | { | |
3438 | /* type conversion operator */ | |
3439 | tem = declp->b + 5; | |
3440 | if (do_type (work, &tem, &type)) | |
3441 | { | |
3442 | string_clear (declp); | |
3443 | string_append (declp, "operator "); | |
3444 | string_appends (declp, &type); | |
3445 | string_delete (&type); | |
3446 | } | |
3447 | } | |
3448 | else if (declp->b[0] == '_' && declp->b[1] == '_' | |
3449 | && declp->b[2] == 'o' && declp->b[3] == 'p') | |
3450 | { | |
3451 | /* ANSI. */ | |
3452 | /* type conversion operator. */ | |
3453 | tem = declp->b + 4; | |
3454 | if (do_type (work, &tem, &type)) | |
3455 | { | |
3456 | string_clear (declp); | |
3457 | string_append (declp, "operator "); | |
3458 | string_appends (declp, &type); | |
3459 | string_delete (&type); | |
3460 | } | |
3461 | } | |
3462 | else if (declp->b[0] == '_' && declp->b[1] == '_' | |
3463 | && declp->b[2] >= 'a' && declp->b[2] <= 'z' | |
3464 | && declp->b[3] >= 'a' && declp->b[3] <= 'z') | |
3465 | { | |
3466 | if (declp->b[4] == '\0') | |
3467 | { | |
3468 | /* Operator. */ | |
3469 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) | |
3470 | { | |
3471 | if (strlen (optable[i].in) == 2 | |
3472 | && memcmp (optable[i].in, declp->b + 2, 2) == 0) | |
3473 | { | |
3474 | string_clear (declp); | |
3475 | string_append (declp, "operator"); | |
3476 | string_append (declp, optable[i].out); | |
3477 | break; | |
3478 | } | |
3479 | } | |
3480 | } | |
3481 | else | |
3482 | { | |
3483 | if (declp->b[2] == 'a' && declp->b[5] == '\0') | |
3484 | { | |
3485 | /* Assignment. */ | |
3486 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) | |
3487 | { | |
3488 | if (strlen (optable[i].in) == 3 | |
3489 | && memcmp (optable[i].in, declp->b + 2, 3) == 0) | |
3490 | { | |
3491 | string_clear (declp); | |
3492 | string_append (declp, "operator"); | |
3493 | string_append (declp, optable[i].out); | |
3494 | break; | |
3495 | } | |
3496 | } | |
3497 | } | |
3498 | } | |
3499 | } | |
3500 | } | |
3501 | ||
3502 | /* a mini string-handling package */ | |
3503 | ||
3504 | static void | |
3505 | string_need (s, n) | |
3506 | string *s; | |
3507 | int n; | |
3508 | { | |
3509 | int tem; | |
3510 | ||
3511 | if (s->b == NULL) | |
3512 | { | |
3513 | if (n < 32) | |
3514 | { | |
3515 | n = 32; | |
3516 | } | |
3517 | s->p = s->b = xmalloc (n); | |
3518 | s->e = s->b + n; | |
3519 | } | |
3520 | else if (s->e - s->p < n) | |
3521 | { | |
3522 | tem = s->p - s->b; | |
3523 | n += tem; | |
3524 | n *= 2; | |
3525 | s->b = xrealloc (s->b, n); | |
3526 | s->p = s->b + tem; | |
3527 | s->e = s->b + n; | |
3528 | } | |
3529 | } | |
3530 | ||
3531 | static void | |
3532 | string_delete (s) | |
3533 | string *s; | |
3534 | { | |
3535 | if (s->b != NULL) | |
3536 | { | |
3537 | free (s->b); | |
3538 | s->b = s->e = s->p = NULL; | |
3539 | } | |
3540 | } | |
3541 | ||
3542 | static void | |
3543 | string_init (s) | |
3544 | string *s; | |
3545 | { | |
3546 | s->b = s->p = s->e = NULL; | |
3547 | } | |
3548 | ||
3549 | static void | |
3550 | string_clear (s) | |
3551 | string *s; | |
3552 | { | |
3553 | s->p = s->b; | |
3554 | } | |
3555 | ||
3556 | #if 0 | |
3557 | ||
3558 | static int | |
3559 | string_empty (s) | |
3560 | string *s; | |
3561 | { | |
3562 | return (s->b == s->p); | |
3563 | } | |
3564 | ||
3565 | #endif | |
3566 | ||
3567 | static void | |
3568 | string_append (p, s) | |
3569 | string *p; | |
3570 | const char *s; | |
3571 | { | |
3572 | int n; | |
3573 | if (s == NULL || *s == '\0') | |
3574 | return; | |
3575 | n = strlen (s); | |
3576 | string_need (p, n); | |
3577 | memcpy (p->p, s, n); | |
3578 | p->p += n; | |
3579 | } | |
3580 | ||
3581 | static void | |
3582 | string_appends (p, s) | |
3583 | string *p, *s; | |
3584 | { | |
3585 | int n; | |
3586 | ||
3587 | if (s->b != s->p) | |
3588 | { | |
3589 | n = s->p - s->b; | |
3590 | string_need (p, n); | |
3591 | memcpy (p->p, s->b, n); | |
3592 | p->p += n; | |
3593 | } | |
3594 | } | |
3595 | ||
3596 | static void | |
3597 | string_appendn (p, s, n) | |
3598 | string *p; | |
3599 | const char *s; | |
3600 | int n; | |
3601 | { | |
3602 | if (n != 0) | |
3603 | { | |
3604 | string_need (p, n); | |
3605 | memcpy (p->p, s, n); | |
3606 | p->p += n; | |
3607 | } | |
3608 | } | |
3609 | ||
3610 | static void | |
3611 | string_prepend (p, s) | |
3612 | string *p; | |
3613 | const char *s; | |
3614 | { | |
3615 | if (s != NULL && *s != '\0') | |
3616 | { | |
3617 | string_prependn (p, s, strlen (s)); | |
3618 | } | |
3619 | } | |
3620 | ||
3621 | static void | |
3622 | string_prepends (p, s) | |
3623 | string *p, *s; | |
3624 | { | |
3625 | if (s->b != s->p) | |
3626 | { | |
3627 | string_prependn (p, s->b, s->p - s->b); | |
3628 | } | |
3629 | } | |
3630 | ||
3631 | static void | |
3632 | string_prependn (p, s, n) | |
3633 | string *p; | |
3634 | const char *s; | |
3635 | int n; | |
3636 | { | |
3637 | char *q; | |
3638 | ||
3639 | if (n != 0) | |
3640 | { | |
3641 | string_need (p, n); | |
3642 | for (q = p->p - 1; q >= p->b; q--) | |
3643 | { | |
3644 | q[n] = q[0]; | |
3645 | } | |
3646 | memcpy (p->b, s, n); | |
3647 | p->p += n; | |
3648 | } | |
3649 | } | |
3650 | ||
3651 | /* To generate a standalone demangler program for testing purposes, | |
3652 | just compile and link this file with -DMAIN and libiberty.a. When | |
3653 | run, it demangles each command line arg, or each stdin string, and | |
3654 | prints the result on stdout. */ | |
3655 | ||
3656 | #ifdef MAIN | |
3657 | ||
3658 | #include "getopt.h" | |
3659 | ||
3660 | static char *program_name; | |
3661 | static char *program_version = VERSION; | |
3662 | static int flags = DMGL_PARAMS | DMGL_ANSI; | |
3663 | ||
3664 | static void demangle_it PARAMS ((char *)); | |
3665 | static void usage PARAMS ((FILE *, int)); | |
3666 | static void fatal PARAMS ((char *)); | |
3667 | ||
3668 | static void | |
3669 | demangle_it (mangled_name) | |
3670 | char *mangled_name; | |
3671 | { | |
3672 | char *result; | |
3673 | ||
3674 | result = cplus_demangle (mangled_name, flags); | |
3675 | if (result == NULL) | |
3676 | { | |
3677 | printf ("%s\n", mangled_name); | |
3678 | } | |
3679 | else | |
3680 | { | |
3681 | printf ("%s\n", result); | |
3682 | free (result); | |
3683 | } | |
3684 | } | |
3685 | ||
3686 | static void | |
3687 | usage (stream, status) | |
3688 | FILE *stream; | |
3689 | int status; | |
3690 | { | |
3691 | fprintf (stream, "\ | |
3692 | Usage: %s [-_] [-n] [-s {gnu,lucid,arm}] [--strip-underscores]\n\ | |
3693 | [--no-strip-underscores] [--format={gnu,lucid,arm}]\n\ | |
3694 | [--help] [--version] [arg...]\n", | |
3695 | program_name); | |
3696 | exit (status); | |
3697 | } | |
3698 | ||
3699 | #define MBUF_SIZE 32767 | |
3700 | char mbuffer[MBUF_SIZE]; | |
3701 | ||
3702 | /* Defined in the automatically-generated underscore.c. */ | |
3703 | extern int prepends_underscore; | |
3704 | ||
3705 | int strip_underscore = 0; | |
3706 | ||
3707 | static struct option long_options[] = { | |
3708 | {"strip-underscores", no_argument, 0, '_'}, | |
3709 | {"format", required_argument, 0, 's'}, | |
3710 | {"help", no_argument, 0, 'h'}, | |
3711 | {"no-strip-underscores", no_argument, 0, 'n'}, | |
3712 | {"version", no_argument, 0, 'v'}, | |
3713 | {0, no_argument, 0, 0} | |
3714 | }; | |
3715 | ||
3716 | /* More 'friendly' abort that prints the line and file. | |
3717 | config.h can #define abort fancy_abort if you like that sort of thing. */ | |
3718 | ||
3719 | void | |
3720 | fancy_abort () | |
3721 | { | |
3722 | fatal ("Internal gcc abort."); | |
3723 | } | |
3724 | ||
3725 | int | |
3726 | main (argc, argv) | |
3727 | int argc; | |
3728 | char **argv; | |
3729 | { | |
3730 | char *result; | |
3731 | int c; | |
3732 | ||
3733 | program_name = argv[0]; | |
3734 | ||
3735 | strip_underscore = prepends_underscore; | |
3736 | ||
3737 | while ((c = getopt_long (argc, argv, "_ns:j", long_options, (int *) 0)) != EOF) | |
3738 | { | |
3739 | switch (c) | |
3740 | { | |
3741 | case '?': | |
3742 | usage (stderr, 1); | |
3743 | break; | |
3744 | case 'h': | |
3745 | usage (stdout, 0); | |
3746 | case 'n': | |
3747 | strip_underscore = 0; | |
3748 | break; | |
3749 | case 'v': | |
3750 | printf ("GNU %s version %s\n", program_name, program_version); | |
3751 | exit (0); | |
3752 | case '_': | |
3753 | strip_underscore = 1; | |
3754 | break; | |
3755 | case 's': | |
3756 | if (strcmp (optarg, "gnu") == 0) | |
3757 | { | |
3758 | current_demangling_style = gnu_demangling; | |
3759 | } | |
3760 | else if (strcmp (optarg, "lucid") == 0) | |
3761 | { | |
3762 | current_demangling_style = lucid_demangling; | |
3763 | } | |
3764 | else if (strcmp (optarg, "arm") == 0) | |
3765 | { | |
3766 | current_demangling_style = arm_demangling; | |
3767 | } | |
3768 | else | |
3769 | { | |
3770 | fprintf (stderr, "%s: unknown demangling style `%s'\n", | |
3771 | program_name, optarg); | |
3772 | exit (1); | |
3773 | } | |
3774 | break; | |
3775 | } | |
3776 | } | |
3777 | ||
3778 | if (optind < argc) | |
3779 | { | |
3780 | for ( ; optind < argc; optind++) | |
3781 | { | |
3782 | demangle_it (argv[optind]); | |
3783 | } | |
3784 | } | |
3785 | else | |
3786 | { | |
3787 | for (;;) | |
3788 | { | |
3789 | int i = 0; | |
3790 | c = getchar (); | |
3791 | /* Try to read a label. */ | |
3792 | while (c != EOF && (isalnum(c) || c == '_' || c == '$' || c == '.')) | |
3793 | { | |
3794 | if (i >= MBUF_SIZE-1) | |
3795 | break; | |
3796 | mbuffer[i++] = c; | |
3797 | c = getchar (); | |
3798 | } | |
3799 | if (i > 0) | |
3800 | { | |
3801 | int skip_first = 0; | |
3802 | ||
3803 | if (mbuffer[0] == '.') | |
3804 | ++skip_first; | |
3805 | if (strip_underscore && mbuffer[skip_first] == '_') | |
3806 | ++skip_first; | |
3807 | ||
3808 | if (skip_first > i) | |
3809 | skip_first = i; | |
3810 | ||
3811 | mbuffer[i] = 0; | |
3812 | ||
3813 | result = cplus_demangle (mbuffer + skip_first, flags); | |
3814 | if (result) | |
3815 | { | |
3816 | if (mbuffer[0] == '.') | |
3817 | putc ('.', stdout); | |
3818 | fputs (result, stdout); | |
3819 | free (result); | |
3820 | } | |
3821 | else | |
3822 | fputs (mbuffer, stdout); | |
3823 | ||
3824 | fflush (stdout); | |
3825 | } | |
3826 | if (c == EOF) | |
3827 | break; | |
3828 | putchar (c); | |
3829 | } | |
3830 | } | |
3831 | ||
3832 | exit (0); | |
3833 | } | |
3834 | ||
3835 | static void | |
3836 | fatal (str) | |
3837 | char *str; | |
3838 | { | |
3839 | fprintf (stderr, "%s: %s\n", program_name, str); | |
3840 | exit (1); | |
3841 | } | |
3842 | ||
3843 | char * | |
3844 | xmalloc (size) | |
3845 | unsigned size; | |
3846 | { | |
3847 | register char *value = (char *) malloc (size); | |
3848 | if (value == 0) | |
3849 | fatal ("virtual memory exhausted"); | |
3850 | return value; | |
3851 | } | |
3852 | ||
3853 | char * | |
3854 | xrealloc (ptr, size) | |
3855 | char *ptr; | |
3856 | unsigned size; | |
3857 | { | |
3858 | register char *value = (char *) realloc (ptr, size); | |
3859 | if (value == 0) | |
3860 | fatal ("virtual memory exhausted"); | |
3861 | return value; | |
3862 | } | |
3863 | #endif /* main */ |