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a3184468 JM |
1 | /* Demangler for GNU C++ |
2 | Copyright 1989, 1991, 1994, 1995 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 | |
940d9d63 RK |
19 | not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
20 | Boston, MA 02111-1307, USA. */ | |
a3184468 JM |
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 | #include <ctype.h> | |
29 | #include <string.h> | |
30 | #include <stdio.h> | |
31 | ||
32 | #include <demangle.h> | |
33 | #undef CURRENT_DEMANGLING_STYLE | |
34 | #define CURRENT_DEMANGLING_STYLE work->options | |
35 | ||
36 | extern char *xmalloc PARAMS((unsigned)); | |
37 | extern char *xrealloc PARAMS((char *, unsigned)); | |
a3184468 | 38 | |
c4b5dcfb | 39 | char * |
f83d4617 | 40 | mystrstr (s1, s2) |
c4b5dcfb RK |
41 | char *s1, *s2; |
42 | { | |
43 | register char *p = s1; | |
c4b5dcfb RK |
44 | register int len = strlen (s2); |
45 | ||
46 | for (; (p = strchr (p, *s2)) != 0; p++) | |
47 | { | |
48 | if (strncmp (p, s2, len) == 0) | |
49 | { | |
50 | return (p); | |
51 | } | |
52 | } | |
53 | return (0); | |
54 | } | |
c4b5dcfb | 55 | |
a3184468 JM |
56 | /* In order to allow a single demangler executable to demangle strings |
57 | using various common values of CPLUS_MARKER, as well as any specific | |
58 | one set at compile time, we maintain a string containing all the | |
59 | commonly used ones, and check to see if the marker we are looking for | |
60 | is in that string. CPLUS_MARKER is usually '$' on systems where the | |
61 | assembler can deal with that. Where the assembler can't, it's usually | |
62 | '.' (but on many systems '.' is used for other things). We put the | |
63 | current defined CPLUS_MARKER first (which defaults to '$'), followed | |
64 | by the next most common value, followed by an explicit '$' in case | |
65 | the value of CPLUS_MARKER is not '$'. | |
66 | ||
67 | We could avoid this if we could just get g++ to tell us what the actual | |
68 | cplus marker character is as part of the debug information, perhaps by | |
69 | ensuring that it is the character that terminates the gcc<n>_compiled | |
70 | marker symbol (FIXME). */ | |
71 | ||
72 | #if !defined (CPLUS_MARKER) | |
73 | #define CPLUS_MARKER '$' | |
74 | #endif | |
75 | ||
76 | enum demangling_styles current_demangling_style = gnu_demangling; | |
77 | ||
78 | static char cplus_markers[] = { CPLUS_MARKER, '.', '$', '\0' }; | |
79 | ||
80 | void | |
81 | set_cplus_marker_for_demangling (ch) | |
82 | int ch; | |
83 | { | |
84 | cplus_markers[0] = ch; | |
85 | } | |
86 | ||
87 | /* Stuff that is shared between sub-routines. | |
88 | * Using a shared structure allows cplus_demangle to be reentrant. */ | |
89 | ||
90 | struct work_stuff | |
91 | { | |
92 | int options; | |
93 | char **typevec; | |
94 | int ntypes; | |
95 | int typevec_size; | |
96 | int constructor; | |
97 | int destructor; | |
98 | int static_type; /* A static member function */ | |
99 | int const_type; /* A const member function */ | |
100 | }; | |
101 | ||
102 | #define PRINT_ANSI_QUALIFIERS (work -> options & DMGL_ANSI) | |
103 | #define PRINT_ARG_TYPES (work -> options & DMGL_PARAMS) | |
104 | ||
105 | static const struct optable | |
106 | { | |
107 | const char *in; | |
108 | const char *out; | |
109 | int flags; | |
110 | } optable[] = { | |
111 | {"nw", " new", DMGL_ANSI}, /* new (1.92, ansi) */ | |
112 | {"dl", " delete", DMGL_ANSI}, /* new (1.92, ansi) */ | |
113 | {"new", " new", 0}, /* old (1.91, and 1.x) */ | |
114 | {"delete", " delete", 0}, /* old (1.91, and 1.x) */ | |
115 | {"vn", " new []", DMGL_ANSI}, /* GNU, pending ansi */ | |
116 | {"vd", " delete []", DMGL_ANSI}, /* GNU, pending ansi */ | |
117 | {"as", "=", DMGL_ANSI}, /* ansi */ | |
118 | {"ne", "!=", DMGL_ANSI}, /* old, ansi */ | |
119 | {"eq", "==", DMGL_ANSI}, /* old, ansi */ | |
120 | {"ge", ">=", DMGL_ANSI}, /* old, ansi */ | |
121 | {"gt", ">", DMGL_ANSI}, /* old, ansi */ | |
122 | {"le", "<=", DMGL_ANSI}, /* old, ansi */ | |
123 | {"lt", "<", DMGL_ANSI}, /* old, ansi */ | |
124 | {"plus", "+", 0}, /* old */ | |
125 | {"pl", "+", DMGL_ANSI}, /* ansi */ | |
126 | {"apl", "+=", DMGL_ANSI}, /* ansi */ | |
127 | {"minus", "-", 0}, /* old */ | |
128 | {"mi", "-", DMGL_ANSI}, /* ansi */ | |
129 | {"ami", "-=", DMGL_ANSI}, /* ansi */ | |
130 | {"mult", "*", 0}, /* old */ | |
131 | {"ml", "*", DMGL_ANSI}, /* ansi */ | |
132 | {"amu", "*=", DMGL_ANSI}, /* ansi (ARM/Lucid) */ | |
133 | {"aml", "*=", DMGL_ANSI}, /* ansi (GNU/g++) */ | |
134 | {"convert", "+", 0}, /* old (unary +) */ | |
135 | {"negate", "-", 0}, /* old (unary -) */ | |
136 | {"trunc_mod", "%", 0}, /* old */ | |
137 | {"md", "%", DMGL_ANSI}, /* ansi */ | |
138 | {"amd", "%=", DMGL_ANSI}, /* ansi */ | |
139 | {"trunc_div", "/", 0}, /* old */ | |
140 | {"dv", "/", DMGL_ANSI}, /* ansi */ | |
141 | {"adv", "/=", DMGL_ANSI}, /* ansi */ | |
142 | {"truth_andif", "&&", 0}, /* old */ | |
143 | {"aa", "&&", DMGL_ANSI}, /* ansi */ | |
144 | {"truth_orif", "||", 0}, /* old */ | |
145 | {"oo", "||", DMGL_ANSI}, /* ansi */ | |
146 | {"truth_not", "!", 0}, /* old */ | |
147 | {"nt", "!", DMGL_ANSI}, /* ansi */ | |
148 | {"postincrement","++", 0}, /* old */ | |
149 | {"pp", "++", DMGL_ANSI}, /* ansi */ | |
150 | {"postdecrement","--", 0}, /* old */ | |
151 | {"mm", "--", DMGL_ANSI}, /* ansi */ | |
152 | {"bit_ior", "|", 0}, /* old */ | |
153 | {"or", "|", DMGL_ANSI}, /* ansi */ | |
154 | {"aor", "|=", DMGL_ANSI}, /* ansi */ | |
155 | {"bit_xor", "^", 0}, /* old */ | |
156 | {"er", "^", DMGL_ANSI}, /* ansi */ | |
157 | {"aer", "^=", DMGL_ANSI}, /* ansi */ | |
158 | {"bit_and", "&", 0}, /* old */ | |
159 | {"ad", "&", DMGL_ANSI}, /* ansi */ | |
160 | {"aad", "&=", DMGL_ANSI}, /* ansi */ | |
161 | {"bit_not", "~", 0}, /* old */ | |
162 | {"co", "~", DMGL_ANSI}, /* ansi */ | |
163 | {"call", "()", 0}, /* old */ | |
164 | {"cl", "()", DMGL_ANSI}, /* ansi */ | |
165 | {"alshift", "<<", 0}, /* old */ | |
166 | {"ls", "<<", DMGL_ANSI}, /* ansi */ | |
167 | {"als", "<<=", DMGL_ANSI}, /* ansi */ | |
168 | {"arshift", ">>", 0}, /* old */ | |
169 | {"rs", ">>", DMGL_ANSI}, /* ansi */ | |
170 | {"ars", ">>=", DMGL_ANSI}, /* ansi */ | |
171 | {"component", "->", 0}, /* old */ | |
172 | {"pt", "->", DMGL_ANSI}, /* ansi; Lucid C++ form */ | |
173 | {"rf", "->", DMGL_ANSI}, /* ansi; ARM/GNU form */ | |
174 | {"indirect", "*", 0}, /* old */ | |
175 | {"method_call", "->()", 0}, /* old */ | |
176 | {"addr", "&", 0}, /* old (unary &) */ | |
177 | {"array", "[]", 0}, /* old */ | |
178 | {"vc", "[]", DMGL_ANSI}, /* ansi */ | |
179 | {"compound", ", ", 0}, /* old */ | |
180 | {"cm", ", ", DMGL_ANSI}, /* ansi */ | |
181 | {"cond", "?:", 0}, /* old */ | |
ddd5a7c1 | 182 | {"cn", "?:", DMGL_ANSI}, /* pseudo-ansi */ |
a3184468 | 183 | {"max", ">?", 0}, /* old */ |
ddd5a7c1 | 184 | {"mx", ">?", DMGL_ANSI}, /* pseudo-ansi */ |
a3184468 | 185 | {"min", "<?", 0}, /* old */ |
ddd5a7c1 | 186 | {"mn", "<?", DMGL_ANSI}, /* pseudo-ansi */ |
a3184468 JM |
187 | {"nop", "", 0}, /* old (for operator=) */ |
188 | {"rm", "->*", DMGL_ANSI} /* ansi */ | |
189 | }; | |
190 | ||
191 | ||
192 | typedef struct string /* Beware: these aren't required to be */ | |
193 | { /* '\0' terminated. */ | |
194 | char *b; /* pointer to start of string */ | |
195 | char *p; /* pointer after last character */ | |
196 | char *e; /* pointer after end of allocated space */ | |
197 | } string; | |
198 | ||
199 | #define STRING_EMPTY(str) ((str) -> b == (str) -> p) | |
200 | #define PREPEND_BLANK(str) {if (!STRING_EMPTY(str)) \ | |
201 | string_prepend(str, " ");} | |
202 | #define APPEND_BLANK(str) {if (!STRING_EMPTY(str)) \ | |
203 | string_append(str, " ");} | |
204 | ||
205 | #define ARM_VTABLE_STRING "__vtbl__" /* Lucid/ARM virtual table prefix */ | |
206 | #define ARM_VTABLE_STRLEN 8 /* strlen (ARM_VTABLE_STRING) */ | |
207 | ||
208 | /* Prototypes for local functions */ | |
209 | ||
210 | static char * | |
211 | mop_up PARAMS ((struct work_stuff *, string *, int)); | |
212 | ||
213 | #if 0 | |
214 | static int | |
215 | demangle_method_args PARAMS ((struct work_stuff *work, const char **, string *)); | |
216 | #endif | |
217 | ||
218 | static int | |
219 | demangle_template PARAMS ((struct work_stuff *work, const char **, string *, | |
220 | string *)); | |
221 | ||
222 | static int | |
223 | demangle_qualified PARAMS ((struct work_stuff *, const char **, string *, | |
224 | int, int)); | |
225 | ||
226 | static int | |
227 | demangle_class PARAMS ((struct work_stuff *, const char **, string *)); | |
228 | ||
229 | static int | |
230 | demangle_fund_type PARAMS ((struct work_stuff *, const char **, string *)); | |
231 | ||
232 | static int | |
233 | demangle_signature PARAMS ((struct work_stuff *, const char **, string *)); | |
234 | ||
235 | static int | |
236 | demangle_prefix PARAMS ((struct work_stuff *, const char **, string *)); | |
237 | ||
238 | static int | |
239 | gnu_special PARAMS ((struct work_stuff *, const char **, string *)); | |
240 | ||
241 | static int | |
242 | arm_special PARAMS ((struct work_stuff *, const char **, string *)); | |
243 | ||
244 | static void | |
245 | string_need PARAMS ((string *, int)); | |
246 | ||
247 | static void | |
248 | string_delete PARAMS ((string *)); | |
249 | ||
250 | static void | |
251 | string_init PARAMS ((string *)); | |
252 | ||
253 | static void | |
254 | string_clear PARAMS ((string *)); | |
255 | ||
256 | #if 0 | |
257 | static int | |
258 | string_empty PARAMS ((string *)); | |
259 | #endif | |
260 | ||
261 | static void | |
262 | string_append PARAMS ((string *, const char *)); | |
263 | ||
264 | static void | |
265 | string_appends PARAMS ((string *, string *)); | |
266 | ||
267 | static void | |
268 | string_appendn PARAMS ((string *, const char *, int)); | |
269 | ||
270 | static void | |
271 | string_prepend PARAMS ((string *, const char *)); | |
272 | ||
273 | static void | |
274 | string_prependn PARAMS ((string *, const char *, int)); | |
275 | ||
276 | static int | |
277 | get_count PARAMS ((const char **, int *)); | |
278 | ||
279 | static int | |
280 | consume_count PARAMS ((const char **)); | |
281 | ||
282 | static int | |
283 | demangle_args PARAMS ((struct work_stuff *, const char **, string *)); | |
284 | ||
285 | static int | |
286 | do_type PARAMS ((struct work_stuff *, const char **, string *)); | |
287 | ||
288 | static int | |
289 | do_arg PARAMS ((struct work_stuff *, const char **, string *)); | |
290 | ||
291 | static void | |
292 | demangle_function_name PARAMS ((struct work_stuff *, const char **, string *, | |
293 | const char *)); | |
294 | ||
295 | static void | |
296 | remember_type PARAMS ((struct work_stuff *, const char *, int)); | |
297 | ||
298 | static void | |
299 | forget_types PARAMS ((struct work_stuff *)); | |
300 | ||
301 | static void | |
302 | string_prepends PARAMS ((string *, string *)); | |
303 | ||
304 | /* Translate count to integer, consuming tokens in the process. | |
305 | Conversion terminates on the first non-digit character. | |
306 | Trying to consume something that isn't a count results in | |
307 | no consumption of input and a return of 0. */ | |
308 | ||
309 | static int | |
310 | consume_count (type) | |
311 | const char **type; | |
312 | { | |
313 | int count = 0; | |
314 | ||
315 | while (isdigit (**type)) | |
316 | { | |
317 | count *= 10; | |
318 | count += **type - '0'; | |
319 | (*type)++; | |
320 | } | |
321 | return (count); | |
322 | } | |
323 | ||
324 | int | |
325 | cplus_demangle_opname (opname, result, options) | |
326 | char *opname; | |
327 | char *result; | |
328 | int options; | |
329 | { | |
330 | int len, i, len1, ret; | |
331 | string type; | |
332 | struct work_stuff work[1]; | |
333 | const char *tem; | |
334 | ||
335 | len = strlen(opname); | |
336 | result[0] = '\0'; | |
337 | ret = 0; | |
338 | work->options = options; | |
339 | ||
340 | if (opname[0] == '_' && opname[1] == '_' | |
341 | && opname[2] == 'o' && opname[3] == 'p') | |
342 | { | |
343 | /* ANSI. */ | |
344 | /* type conversion operator. */ | |
345 | tem = opname + 4; | |
346 | if (do_type (work, &tem, &type)) | |
347 | { | |
348 | strcat (result, "operator "); | |
349 | strncat (result, type.b, type.p - type.b); | |
350 | string_delete (&type); | |
351 | ret = 1; | |
352 | } | |
353 | } | |
354 | else if (opname[0] == '_' && opname[1] == '_' | |
355 | && opname[2] >= 'a' && opname[2] <= 'z' | |
356 | && opname[3] >= 'a' && opname[3] <= 'z') | |
357 | { | |
358 | if (opname[4] == '\0') | |
359 | { | |
360 | /* Operator. */ | |
361 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) | |
362 | { | |
363 | if (strlen (optable[i].in) == 2 | |
364 | && memcmp (optable[i].in, opname + 2, 2) == 0) | |
365 | { | |
366 | strcat (result, "operator"); | |
367 | strcat (result, optable[i].out); | |
368 | ret = 1; | |
369 | break; | |
370 | } | |
371 | } | |
372 | } | |
373 | else | |
374 | { | |
375 | if (opname[2] == 'a' && opname[5] == '\0') | |
376 | { | |
377 | /* Assignment. */ | |
378 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) | |
379 | { | |
380 | if (strlen (optable[i].in) == 3 | |
381 | && memcmp (optable[i].in, opname + 2, 3) == 0) | |
382 | { | |
383 | strcat (result, "operator"); | |
384 | strcat (result, optable[i].out); | |
385 | ret = 1; | |
386 | break; | |
387 | } | |
388 | } | |
389 | } | |
390 | } | |
391 | } | |
392 | else if (len >= 3 | |
393 | && opname[0] == 'o' | |
394 | && opname[1] == 'p' | |
395 | && strchr (cplus_markers, opname[2]) != NULL) | |
396 | { | |
397 | /* see if it's an assignment expression */ | |
398 | if (len >= 10 /* op$assign_ */ | |
399 | && memcmp (opname + 3, "assign_", 7) == 0) | |
400 | { | |
401 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) | |
402 | { | |
403 | len1 = len - 10; | |
404 | if (strlen (optable[i].in) == len1 | |
405 | && memcmp (optable[i].in, opname + 10, len1) == 0) | |
406 | { | |
407 | strcat (result, "operator"); | |
408 | strcat (result, optable[i].out); | |
409 | strcat (result, "="); | |
410 | ret = 1; | |
411 | break; | |
412 | } | |
413 | } | |
414 | } | |
415 | else | |
416 | { | |
417 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) | |
418 | { | |
419 | len1 = len - 3; | |
420 | if (strlen (optable[i].in) == len1 | |
421 | && memcmp (optable[i].in, opname + 3, len1) == 0) | |
422 | { | |
423 | strcat (result, "operator"); | |
424 | strcat (result, optable[i].out); | |
425 | ret = 1; | |
426 | break; | |
427 | } | |
428 | } | |
429 | } | |
430 | } | |
431 | else if (len >= 5 && memcmp (opname, "type", 4) == 0 | |
432 | && strchr (cplus_markers, opname[4]) != NULL) | |
433 | { | |
434 | /* type conversion operator */ | |
435 | tem = opname + 5; | |
436 | if (do_type (work, &tem, &type)) | |
437 | { | |
438 | strcat (result, "operator "); | |
439 | strncat (result, type.b, type.p - type.b); | |
440 | string_delete (&type); | |
441 | ret = 1; | |
442 | } | |
443 | } | |
444 | return ret; | |
445 | ||
446 | } | |
447 | /* Takes operator name as e.g. "++" and returns mangled | |
448 | operator name (e.g. "postincrement_expr"), or NULL if not found. | |
449 | ||
450 | If OPTIONS & DMGL_ANSI == 1, return the ANSI name; | |
451 | if OPTIONS & DMGL_ANSI == 0, return the old GNU name. */ | |
452 | ||
453 | char * | |
454 | cplus_mangle_opname (opname, options) | |
455 | char *opname; | |
456 | int options; | |
457 | { | |
458 | int i; | |
459 | int len; | |
460 | ||
461 | len = strlen (opname); | |
462 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) | |
463 | { | |
464 | if (strlen (optable[i].out) == len | |
465 | && (options & DMGL_ANSI) == (optable[i].flags & DMGL_ANSI) | |
466 | && memcmp (optable[i].out, opname, len) == 0) | |
467 | return ((char *)optable[i].in); | |
468 | } | |
469 | return (0); | |
470 | } | |
471 | ||
472 | /* check to see whether MANGLED can match TEXT in the first TEXT_LEN | |
473 | characters. */ | |
474 | ||
475 | int cplus_match (mangled, text, text_len) | |
476 | const char *mangled; | |
477 | char *text; | |
478 | int text_len; | |
479 | { | |
480 | if (strncmp (mangled, text, text_len) != 0) { | |
481 | return(0); /* cannot match either */ | |
482 | } else { | |
483 | return(1); /* matches mangled, may match demangled */ | |
484 | } | |
485 | } | |
486 | ||
487 | /* char *cplus_demangle (const char *mangled, int options) | |
488 | ||
489 | If MANGLED is a mangled function name produced by GNU C++, then | |
490 | a pointer to a malloced string giving a C++ representation | |
491 | of the name will be returned; otherwise NULL will be returned. | |
492 | It is the caller's responsibility to free the string which | |
493 | is returned. | |
494 | ||
495 | The OPTIONS arg may contain one or more of the following bits: | |
496 | ||
497 | DMGL_ANSI ANSI qualifiers such as `const' and `void' are | |
498 | included. | |
499 | DMGL_PARAMS Function parameters are included. | |
500 | ||
501 | For example, | |
502 | ||
503 | cplus_demangle ("foo__1Ai", DMGL_PARAMS) => "A::foo(int)" | |
504 | cplus_demangle ("foo__1Ai", DMGL_PARAMS | DMGL_ANSI) => "A::foo(int)" | |
505 | cplus_demangle ("foo__1Ai", 0) => "A::foo" | |
506 | ||
507 | cplus_demangle ("foo__1Afe", DMGL_PARAMS) => "A::foo(float,...)" | |
508 | cplus_demangle ("foo__1Afe", DMGL_PARAMS | DMGL_ANSI)=> "A::foo(float,...)" | |
509 | cplus_demangle ("foo__1Afe", 0) => "A::foo" | |
510 | ||
511 | Note that any leading underscores, or other such characters prepended by | |
512 | the compilation system, are presumed to have already been stripped from | |
513 | MANGLED. */ | |
514 | ||
515 | char * | |
516 | cplus_demangle (mangled, options) | |
517 | const char *mangled; | |
518 | int options; | |
519 | { | |
520 | string decl; | |
521 | int success = 0; | |
522 | struct work_stuff work[1]; | |
523 | char *demangled = NULL; | |
524 | ||
525 | if ((mangled != NULL) && (*mangled != '\0')) | |
526 | { | |
527 | memset ((char *) work, 0, sizeof (work)); | |
528 | work -> options = options; | |
529 | if ((work->options & DMGL_STYLE_MASK) == 0) | |
530 | work->options |= (int)current_demangling_style & DMGL_STYLE_MASK; | |
531 | ||
532 | string_init (&decl); | |
533 | ||
534 | /* First check to see if gnu style demangling is active and if the | |
535 | string to be demangled contains a CPLUS_MARKER. If so, attempt to | |
536 | recognize one of the gnu special forms rather than looking for a | |
537 | standard prefix. In particular, don't worry about whether there | |
538 | is a "__" string in the mangled string. Consider "_$_5__foo" for | |
539 | example. */ | |
540 | ||
541 | if ((AUTO_DEMANGLING || GNU_DEMANGLING)) | |
542 | { | |
543 | success = gnu_special (work, &mangled, &decl); | |
544 | } | |
545 | if (!success) | |
546 | { | |
547 | success = demangle_prefix (work, &mangled, &decl); | |
548 | } | |
549 | if (success && (*mangled != '\0')) | |
550 | { | |
551 | success = demangle_signature (work, &mangled, &decl); | |
552 | } | |
553 | if (work->constructor == 2) | |
554 | { | |
555 | string_prepend(&decl, "global constructors keyed to "); | |
556 | work->constructor = 0; | |
557 | } | |
558 | else if (work->destructor == 2) | |
559 | { | |
560 | string_prepend(&decl, "global destructors keyed to "); | |
561 | work->destructor = 0; | |
562 | } | |
563 | demangled = mop_up (work, &decl, success); | |
564 | } | |
565 | return (demangled); | |
566 | } | |
567 | ||
568 | static char * | |
569 | mop_up (work, declp, success) | |
570 | struct work_stuff *work; | |
571 | string *declp; | |
572 | int success; | |
573 | { | |
574 | char *demangled = NULL; | |
575 | ||
576 | /* Discard the remembered types, if any. */ | |
577 | ||
578 | forget_types (work); | |
579 | if (work -> typevec != NULL) | |
580 | { | |
581 | free ((char *) work -> typevec); | |
582 | } | |
583 | ||
584 | /* If demangling was successful, ensure that the demangled string is null | |
585 | terminated and return it. Otherwise, free the demangling decl. */ | |
586 | ||
587 | if (!success) | |
588 | { | |
589 | string_delete (declp); | |
590 | } | |
591 | else | |
592 | { | |
593 | string_appendn (declp, "", 1); | |
594 | demangled = declp -> b; | |
595 | } | |
596 | return (demangled); | |
597 | } | |
598 | ||
599 | /* | |
600 | ||
601 | LOCAL FUNCTION | |
602 | ||
603 | demangle_signature -- demangle the signature part of a mangled name | |
604 | ||
605 | SYNOPSIS | |
606 | ||
607 | static int | |
608 | demangle_signature (struct work_stuff *work, const char **mangled, | |
609 | string *declp); | |
610 | ||
611 | DESCRIPTION | |
612 | ||
613 | Consume and demangle the signature portion of the mangled name. | |
614 | ||
615 | DECLP is the string where demangled output is being built. At | |
616 | entry it contains the demangled root name from the mangled name | |
617 | prefix. I.E. either a demangled operator name or the root function | |
618 | name. In some special cases, it may contain nothing. | |
619 | ||
620 | *MANGLED points to the current unconsumed location in the mangled | |
621 | name. As tokens are consumed and demangling is performed, the | |
622 | pointer is updated to continuously point at the next token to | |
623 | be consumed. | |
624 | ||
625 | Demangling GNU style mangled names is nasty because there is no | |
626 | explicit token that marks the start of the outermost function | |
627 | argument list. | |
628 | */ | |
629 | ||
630 | static int | |
631 | demangle_signature (work, mangled, declp) | |
632 | struct work_stuff *work; | |
633 | const char **mangled; | |
634 | string *declp; | |
635 | { | |
636 | int success = 1; | |
637 | int func_done = 0; | |
638 | int expect_func = 0; | |
639 | const char *oldmangled = NULL; | |
640 | string trawname; | |
641 | string tname; | |
642 | ||
643 | while (success && (**mangled != '\0')) | |
644 | { | |
645 | switch (**mangled) | |
646 | { | |
647 | case 'Q': | |
648 | oldmangled = *mangled; | |
649 | success = demangle_qualified (work, mangled, declp, 1, 0); | |
650 | if (success) | |
651 | { | |
652 | remember_type (work, oldmangled, *mangled - oldmangled); | |
653 | } | |
654 | if (AUTO_DEMANGLING || GNU_DEMANGLING) | |
655 | { | |
656 | expect_func = 1; | |
657 | } | |
658 | oldmangled = NULL; | |
659 | break; | |
660 | ||
661 | case 'S': | |
662 | /* Static member function */ | |
663 | if (oldmangled == NULL) | |
664 | { | |
665 | oldmangled = *mangled; | |
666 | } | |
667 | (*mangled)++; | |
668 | work -> static_type = 1; | |
669 | break; | |
670 | ||
671 | case 'C': | |
672 | /* a const member function */ | |
673 | if (oldmangled == NULL) | |
674 | { | |
675 | oldmangled = *mangled; | |
676 | } | |
677 | (*mangled)++; | |
678 | work -> const_type = 1; | |
679 | break; | |
680 | ||
681 | case '0': case '1': case '2': case '3': case '4': | |
682 | case '5': case '6': case '7': case '8': case '9': | |
683 | if (oldmangled == NULL) | |
684 | { | |
685 | oldmangled = *mangled; | |
686 | } | |
687 | success = demangle_class (work, mangled, declp); | |
688 | if (success) | |
689 | { | |
690 | remember_type (work, oldmangled, *mangled - oldmangled); | |
691 | } | |
692 | if (AUTO_DEMANGLING || GNU_DEMANGLING) | |
693 | { | |
694 | expect_func = 1; | |
695 | } | |
696 | oldmangled = NULL; | |
697 | break; | |
698 | ||
699 | case 'F': | |
700 | /* Function */ | |
701 | /* ARM style demangling includes a specific 'F' character after | |
702 | the class name. For GNU style, it is just implied. So we can | |
703 | safely just consume any 'F' at this point and be compatible | |
704 | with either style. */ | |
705 | ||
706 | oldmangled = NULL; | |
707 | func_done = 1; | |
708 | (*mangled)++; | |
709 | ||
710 | /* For lucid/ARM style we have to forget any types we might | |
711 | have remembered up to this point, since they were not argument | |
712 | types. GNU style considers all types seen as available for | |
713 | back references. See comment in demangle_args() */ | |
714 | ||
715 | if (LUCID_DEMANGLING || ARM_DEMANGLING) | |
716 | { | |
717 | forget_types (work); | |
718 | } | |
719 | success = demangle_args (work, mangled, declp); | |
720 | break; | |
721 | ||
722 | case 't': | |
723 | /* G++ Template */ | |
724 | string_init(&trawname); | |
725 | string_init(&tname); | |
726 | if (oldmangled == NULL) | |
727 | { | |
728 | oldmangled = *mangled; | |
729 | } | |
730 | success = demangle_template (work, mangled, &tname, &trawname); | |
731 | if (success) | |
732 | { | |
733 | remember_type (work, oldmangled, *mangled - oldmangled); | |
734 | } | |
735 | string_append(&tname, "::"); | |
736 | string_prepends(declp, &tname); | |
737 | if (work -> destructor & 1) | |
738 | { | |
739 | string_prepend (&trawname, "~"); | |
740 | string_appends (declp, &trawname); | |
741 | work->destructor -= 1; | |
742 | } | |
743 | if ((work->constructor & 1) || (work->destructor & 1)) | |
744 | { | |
745 | string_appends (declp, &trawname); | |
746 | work->constructor -= 1; | |
747 | } | |
748 | string_delete(&trawname); | |
749 | string_delete(&tname); | |
750 | oldmangled = NULL; | |
751 | expect_func = 1; | |
752 | break; | |
753 | ||
754 | case '_': | |
755 | /* At the outermost level, we cannot have a return type specified, | |
756 | so if we run into another '_' at this point we are dealing with | |
757 | a mangled name that is either bogus, or has been mangled by | |
758 | some algorithm we don't know how to deal with. So just | |
759 | reject the entire demangling. */ | |
760 | success = 0; | |
761 | break; | |
762 | ||
763 | default: | |
764 | if (AUTO_DEMANGLING || GNU_DEMANGLING) | |
765 | { | |
766 | /* Assume we have stumbled onto the first outermost function | |
767 | argument token, and start processing args. */ | |
768 | func_done = 1; | |
769 | success = demangle_args (work, mangled, declp); | |
770 | } | |
771 | else | |
772 | { | |
773 | /* Non-GNU demanglers use a specific token to mark the start | |
774 | of the outermost function argument tokens. Typically 'F', | |
775 | for ARM-demangling, for example. So if we find something | |
776 | we are not prepared for, it must be an error. */ | |
777 | success = 0; | |
778 | } | |
779 | break; | |
780 | } | |
781 | /* | |
782 | if (AUTO_DEMANGLING || GNU_DEMANGLING) | |
783 | */ | |
784 | { | |
785 | if (success && expect_func) | |
786 | { | |
787 | func_done = 1; | |
788 | success = demangle_args (work, mangled, declp); | |
789 | } | |
790 | } | |
791 | } | |
792 | if (success && !func_done) | |
793 | { | |
794 | if (AUTO_DEMANGLING || GNU_DEMANGLING) | |
795 | { | |
796 | /* With GNU style demangling, bar__3foo is 'foo::bar(void)', and | |
797 | bar__3fooi is 'foo::bar(int)'. We get here when we find the | |
798 | first case, and need to ensure that the '(void)' gets added to | |
799 | the current declp. Note that with ARM, the first case | |
800 | represents the name of a static data member 'foo::bar', | |
801 | which is in the current declp, so we leave it alone. */ | |
802 | success = demangle_args (work, mangled, declp); | |
803 | } | |
804 | } | |
805 | if (success && work -> static_type && PRINT_ARG_TYPES) | |
806 | { | |
807 | string_append (declp, " static"); | |
808 | } | |
809 | if (success && work -> const_type && PRINT_ARG_TYPES) | |
810 | { | |
811 | string_append (declp, " const"); | |
812 | } | |
813 | return (success); | |
814 | } | |
815 | ||
816 | #if 0 | |
817 | ||
818 | static int | |
819 | demangle_method_args (work, mangled, declp) | |
820 | struct work_stuff *work; | |
821 | const char **mangled; | |
822 | string *declp; | |
823 | { | |
824 | int success = 0; | |
825 | ||
826 | if (work -> static_type) | |
827 | { | |
828 | string_append (declp, *mangled + 1); | |
829 | *mangled += strlen (*mangled); | |
830 | success = 1; | |
831 | } | |
832 | else | |
833 | { | |
834 | success = demangle_args (work, mangled, declp); | |
835 | } | |
836 | return (success); | |
837 | } | |
838 | ||
839 | #endif | |
840 | ||
841 | static int | |
842 | demangle_template (work, mangled, tname, trawname) | |
843 | struct work_stuff *work; | |
844 | const char **mangled; | |
845 | string *tname; | |
846 | string *trawname; | |
847 | { | |
848 | int i; | |
849 | int is_pointer; | |
850 | int is_real; | |
851 | int is_integral; | |
852 | int is_char; | |
853 | int is_bool; | |
854 | int r; | |
855 | int need_comma = 0; | |
856 | int success = 0; | |
857 | int done; | |
858 | const char *old_p; | |
859 | const char *start; | |
860 | int symbol_len; | |
861 | string temp; | |
862 | ||
863 | (*mangled)++; | |
864 | start = *mangled; | |
865 | /* get template name */ | |
866 | if ((r = consume_count (mangled)) == 0 || strlen (*mangled) < r) | |
867 | { | |
868 | return (0); | |
869 | } | |
870 | if (trawname) | |
871 | string_appendn (trawname, *mangled, r); | |
872 | string_appendn (tname, *mangled, r); | |
873 | *mangled += r; | |
874 | string_append (tname, "<"); | |
875 | /* get size of template parameter list */ | |
876 | if (!get_count (mangled, &r)) | |
877 | { | |
878 | return (0); | |
879 | } | |
880 | for (i = 0; i < r; i++) | |
881 | { | |
882 | if (need_comma) | |
883 | { | |
884 | string_append (tname, ", "); | |
885 | } | |
886 | /* Z for type parameters */ | |
887 | if (**mangled == 'Z') | |
888 | { | |
889 | (*mangled)++; | |
890 | /* temp is initialized in do_type */ | |
891 | success = do_type (work, mangled, &temp); | |
892 | if (success) | |
893 | { | |
894 | string_appends (tname, &temp); | |
895 | } | |
896 | string_delete(&temp); | |
897 | if (!success) | |
898 | { | |
899 | break; | |
900 | } | |
901 | } | |
902 | else | |
903 | { | |
904 | /* otherwise, value parameter */ | |
905 | old_p = *mangled; | |
906 | is_pointer = 0; | |
907 | is_real = 0; | |
908 | is_integral = 0; | |
909 | is_char = 0; | |
910 | done = 0; | |
911 | /* temp is initialized in do_type */ | |
912 | success = do_type (work, mangled, &temp); | |
913 | /* | |
914 | if (success) | |
915 | { | |
916 | string_appends (tname, &temp); | |
917 | } | |
918 | */ | |
919 | string_delete(&temp); | |
920 | if (!success) | |
921 | { | |
922 | break; | |
923 | } | |
924 | /* | |
925 | string_append (tname, "="); | |
926 | */ | |
927 | while (*old_p && !done) | |
928 | { | |
929 | switch (*old_p) | |
930 | { | |
931 | case 'P': | |
932 | case 'p': | |
933 | case 'R': | |
934 | done = is_pointer = 1; | |
935 | break; | |
936 | case 'C': /* const */ | |
937 | case 'S': /* explicitly signed [char] */ | |
938 | case 'U': /* unsigned */ | |
939 | case 'V': /* volatile */ | |
940 | case 'F': /* function */ | |
941 | case 'M': /* member function */ | |
942 | case 'O': /* ??? */ | |
943 | old_p++; | |
944 | continue; | |
945 | case 'Q': /* qualified name */ | |
946 | done = is_integral = 1; | |
947 | break; | |
948 | case 'T': /* remembered type */ | |
949 | abort (); | |
950 | break; | |
951 | case 'v': /* void */ | |
952 | abort (); | |
953 | break; | |
954 | case 'x': /* long long */ | |
955 | case 'l': /* long */ | |
956 | case 'i': /* int */ | |
957 | case 's': /* short */ | |
958 | case 'w': /* wchar_t */ | |
959 | done = is_integral = 1; | |
960 | break; | |
961 | case 'b': /* bool */ | |
962 | done = is_bool = 1; | |
963 | break; | |
964 | case 'c': /* char */ | |
965 | done = is_char = 1; | |
966 | break; | |
967 | case 'r': /* long double */ | |
968 | case 'd': /* double */ | |
969 | case 'f': /* float */ | |
970 | done = is_real = 1; | |
971 | break; | |
972 | default: | |
973 | /* it's probably user defined type, let's assume | |
ddd5a7c1 | 974 | it's integral, it seems hard to figure out |
a3184468 JM |
975 | what it really is */ |
976 | done = is_integral = 1; | |
977 | } | |
978 | } | |
979 | if (is_integral) | |
980 | { | |
981 | if (**mangled == 'm') | |
982 | { | |
983 | string_appendn (tname, "-", 1); | |
984 | (*mangled)++; | |
985 | } | |
986 | while (isdigit (**mangled)) | |
987 | { | |
988 | string_appendn (tname, *mangled, 1); | |
989 | (*mangled)++; | |
990 | } | |
991 | } | |
992 | else if (is_char) | |
993 | { | |
994 | char tmp[2]; | |
995 | int val; | |
996 | if (**mangled == 'm') | |
997 | { | |
998 | string_appendn (tname, "-", 1); | |
999 | (*mangled)++; | |
1000 | } | |
1001 | string_appendn (tname, "'", 1); | |
1002 | val = consume_count(mangled); | |
1003 | if (val == 0) | |
1004 | { | |
1005 | success = 0; | |
1006 | break; | |
1007 | } | |
1008 | tmp[0] = (char)val; | |
1009 | tmp[1] = '\0'; | |
1010 | string_appendn (tname, &tmp[0], 1); | |
1011 | string_appendn (tname, "'", 1); | |
1012 | } | |
1013 | else if (is_bool) | |
1014 | { | |
1015 | int val = consume_count (mangled); | |
1016 | if (val == 0) | |
1017 | string_appendn (tname, "false", 5); | |
1018 | else if (val == 1) | |
1019 | string_appendn (tname, "true", 4); | |
1020 | else | |
1021 | success = 0; | |
1022 | } | |
1023 | else if (is_real) | |
1024 | { | |
1025 | if (**mangled == 'm') | |
1026 | { | |
1027 | string_appendn (tname, "-", 1); | |
1028 | (*mangled)++; | |
1029 | } | |
1030 | while (isdigit (**mangled)) | |
1031 | { | |
1032 | string_appendn (tname, *mangled, 1); | |
1033 | (*mangled)++; | |
1034 | } | |
1035 | if (**mangled == '.') /* fraction */ | |
1036 | { | |
1037 | string_appendn (tname, ".", 1); | |
1038 | (*mangled)++; | |
1039 | while (isdigit (**mangled)) | |
1040 | { | |
1041 | string_appendn (tname, *mangled, 1); | |
1042 | (*mangled)++; | |
1043 | } | |
1044 | } | |
1045 | if (**mangled == 'e') /* exponent */ | |
1046 | { | |
1047 | string_appendn (tname, "e", 1); | |
1048 | (*mangled)++; | |
1049 | while (isdigit (**mangled)) | |
1050 | { | |
1051 | string_appendn (tname, *mangled, 1); | |
1052 | (*mangled)++; | |
1053 | } | |
1054 | } | |
1055 | } | |
1056 | else if (is_pointer) | |
1057 | { | |
1058 | if (!get_count (mangled, &symbol_len)) | |
1059 | { | |
1060 | success = 0; | |
1061 | break; | |
1062 | } | |
1063 | string_appendn (tname, *mangled, symbol_len); | |
1064 | *mangled += symbol_len; | |
1065 | } | |
1066 | } | |
1067 | need_comma = 1; | |
1068 | } | |
1069 | if (tname->p[-1] == '>') | |
1070 | string_append (tname, " "); | |
1071 | string_append (tname, ">"); | |
1072 | ||
1073 | /* | |
1074 | if (work -> static_type) | |
1075 | { | |
1076 | string_append (declp, *mangled + 1); | |
1077 | *mangled += strlen (*mangled); | |
1078 | success = 1; | |
1079 | } | |
1080 | else | |
1081 | { | |
1082 | success = demangle_args (work, mangled, declp); | |
1083 | } | |
1084 | } | |
1085 | */ | |
1086 | return (success); | |
1087 | } | |
1088 | ||
1089 | static int | |
1090 | arm_pt (work, mangled, n, anchor, args) | |
1091 | struct work_stuff *work; | |
1092 | const char *mangled; | |
1093 | int n; | |
1094 | const char **anchor, **args; | |
1095 | { | |
1096 | /* ARM template? */ | |
f83d4617 | 1097 | if (ARM_DEMANGLING && (*anchor = mystrstr (mangled, "__pt__"))) |
a3184468 JM |
1098 | { |
1099 | int len; | |
1100 | *args = *anchor + 6; | |
1101 | len = consume_count (args); | |
1102 | if (*args + len == mangled + n && **args == '_') | |
1103 | { | |
1104 | ++*args; | |
1105 | return 1; | |
1106 | } | |
1107 | } | |
1108 | return 0; | |
1109 | } | |
1110 | ||
1111 | static void | |
1112 | demangle_arm_pt (work, mangled, n, declp) | |
1113 | struct work_stuff *work; | |
1114 | const char **mangled; | |
1115 | int n; | |
1116 | string *declp; | |
1117 | { | |
1118 | const char *p; | |
1119 | const char *args; | |
1120 | const char *e = *mangled + n; | |
1121 | ||
1122 | /* ARM template? */ | |
1123 | if (arm_pt (work, *mangled, n, &p, &args)) | |
1124 | { | |
1125 | string arg; | |
1126 | string_init (&arg); | |
1127 | string_appendn (declp, *mangled, p - *mangled); | |
1128 | string_append (declp, "<"); | |
1129 | /* should do error checking here */ | |
1130 | while (args < e) { | |
1131 | string_clear (&arg); | |
1132 | do_type (work, &args, &arg); | |
1133 | string_appends (declp, &arg); | |
1134 | string_append (declp, ","); | |
1135 | } | |
1136 | string_delete (&arg); | |
1137 | --declp->p; | |
1138 | string_append (declp, ">"); | |
1139 | } | |
1140 | else | |
1141 | { | |
1142 | string_appendn (declp, *mangled, n); | |
1143 | } | |
1144 | *mangled += n; | |
1145 | } | |
1146 | ||
1147 | static int | |
1148 | demangle_class_name (work, mangled, declp) | |
1149 | struct work_stuff *work; | |
1150 | const char **mangled; | |
1151 | string *declp; | |
1152 | { | |
1153 | int n; | |
1154 | int success = 0; | |
1155 | ||
1156 | n = consume_count (mangled); | |
1157 | if (strlen (*mangled) >= n) | |
1158 | { | |
1159 | demangle_arm_pt (work, mangled, n, declp); | |
1160 | success = 1; | |
1161 | } | |
1162 | ||
1163 | return (success); | |
1164 | } | |
1165 | ||
1166 | /* | |
1167 | ||
1168 | LOCAL FUNCTION | |
1169 | ||
1170 | demangle_class -- demangle a mangled class sequence | |
1171 | ||
1172 | SYNOPSIS | |
1173 | ||
1174 | static int | |
1175 | demangle_class (struct work_stuff *work, const char **mangled, | |
1176 | strint *declp) | |
1177 | ||
1178 | DESCRIPTION | |
1179 | ||
1180 | DECLP points to the buffer into which demangling is being done. | |
1181 | ||
1182 | *MANGLED points to the current token to be demangled. On input, | |
1183 | it points to a mangled class (I.E. "3foo", "13verylongclass", etc.) | |
1184 | On exit, it points to the next token after the mangled class on | |
1185 | success, or the first unconsumed token on failure. | |
1186 | ||
abc95ed3 | 1187 | If the CONSTRUCTOR or DESTRUCTOR flags are set in WORK, then |
a3184468 JM |
1188 | we are demangling a constructor or destructor. In this case |
1189 | we prepend "class::class" or "class::~class" to DECLP. | |
1190 | ||
1191 | Otherwise, we prepend "class::" to the current DECLP. | |
1192 | ||
1193 | Reset the constructor/destructor flags once they have been | |
1194 | "consumed". This allows demangle_class to be called later during | |
1195 | the same demangling, to do normal class demangling. | |
1196 | ||
1197 | Returns 1 if demangling is successful, 0 otherwise. | |
1198 | ||
1199 | */ | |
1200 | ||
1201 | static int | |
1202 | demangle_class (work, mangled, declp) | |
1203 | struct work_stuff *work; | |
1204 | const char **mangled; | |
1205 | string *declp; | |
1206 | { | |
1207 | int success = 0; | |
1208 | string class_name; | |
1209 | ||
1210 | string_init (&class_name); | |
1211 | if (demangle_class_name (work, mangled, &class_name)) | |
1212 | { | |
1213 | if ((work->constructor & 1) || (work->destructor & 1)) | |
1214 | { | |
1215 | string_prepends (declp, &class_name); | |
1216 | if (work -> destructor & 1) | |
1217 | { | |
1218 | string_prepend (declp, "~"); | |
1219 | work -> destructor -= 1; | |
1220 | } | |
1221 | else | |
1222 | { | |
1223 | work -> constructor -= 1; | |
1224 | } | |
1225 | } | |
1226 | string_prepend (declp, "::"); | |
1227 | string_prepends (declp, &class_name); | |
1228 | success = 1; | |
1229 | } | |
1230 | string_delete (&class_name); | |
1231 | return (success); | |
1232 | } | |
1233 | ||
1234 | /* | |
1235 | ||
1236 | LOCAL FUNCTION | |
1237 | ||
1238 | demangle_prefix -- consume the mangled name prefix and find signature | |
1239 | ||
1240 | SYNOPSIS | |
1241 | ||
1242 | static int | |
1243 | demangle_prefix (struct work_stuff *work, const char **mangled, | |
1244 | string *declp); | |
1245 | ||
1246 | DESCRIPTION | |
1247 | ||
1248 | Consume and demangle the prefix of the mangled name. | |
1249 | ||
1250 | DECLP points to the string buffer into which demangled output is | |
1251 | placed. On entry, the buffer is empty. On exit it contains | |
1252 | the root function name, the demangled operator name, or in some | |
1253 | special cases either nothing or the completely demangled result. | |
1254 | ||
1255 | MANGLED points to the current pointer into the mangled name. As each | |
1256 | token of the mangled name is consumed, it is updated. Upon entry | |
1257 | the current mangled name pointer points to the first character of | |
1258 | the mangled name. Upon exit, it should point to the first character | |
1259 | of the signature if demangling was successful, or to the first | |
1260 | unconsumed character if demangling of the prefix was unsuccessful. | |
1261 | ||
1262 | Returns 1 on success, 0 otherwise. | |
1263 | */ | |
1264 | ||
1265 | static int | |
1266 | demangle_prefix (work, mangled, declp) | |
1267 | struct work_stuff *work; | |
1268 | const char **mangled; | |
1269 | string *declp; | |
1270 | { | |
1271 | int success = 1; | |
1272 | const char *scan; | |
1273 | int i; | |
1274 | ||
1275 | if (strlen(*mangled) >= 11 && strncmp(*mangled, "_GLOBAL_", 8) == 0) | |
1276 | { | |
1277 | char *marker = strchr (cplus_markers, (*mangled)[8]); | |
1278 | if (marker != NULL && *marker == (*mangled)[10]) | |
1279 | { | |
1280 | if ((*mangled)[9] == 'D') | |
1281 | { | |
1282 | /* it's a GNU global destructor to be executed at program exit */ | |
1283 | (*mangled) += 11; | |
1284 | work->destructor = 2; | |
1285 | if (gnu_special (work, mangled, declp)) | |
1286 | return success; | |
1287 | } | |
1288 | else if ((*mangled)[9] == 'I') | |
1289 | { | |
1290 | /* it's a GNU global constructor to be executed at program init */ | |
1291 | (*mangled) += 11; | |
1292 | work->constructor = 2; | |
1293 | if (gnu_special (work, mangled, declp)) | |
1294 | return success; | |
1295 | } | |
1296 | } | |
1297 | } | |
1298 | else if (ARM_DEMANGLING && strncmp(*mangled, "__std__", 7) == 0) | |
1299 | { | |
1300 | /* it's a ARM global destructor to be executed at program exit */ | |
1301 | (*mangled) += 7; | |
1302 | work->destructor = 2; | |
1303 | } | |
1304 | else if (ARM_DEMANGLING && strncmp(*mangled, "__sti__", 7) == 0) | |
1305 | { | |
1306 | /* it's a ARM global constructor to be executed at program initial */ | |
1307 | (*mangled) += 7; | |
1308 | work->constructor = 2; | |
1309 | } | |
1310 | ||
1311 | /* This block of code is a reduction in strength time optimization | |
1312 | of: | |
f83d4617 | 1313 | scan = mystrstr (*mangled, "__"); */ |
a3184468 JM |
1314 | |
1315 | { | |
1316 | scan = *mangled; | |
1317 | ||
1318 | do { | |
1319 | scan = strchr (scan, '_'); | |
1320 | } while (scan != NULL && *++scan != '_'); | |
1321 | ||
1322 | if (scan != NULL) --scan; | |
1323 | } | |
1324 | ||
1325 | if (scan != NULL) | |
1326 | { | |
1327 | /* We found a sequence of two or more '_', ensure that we start at | |
1328 | the last pair in the sequence. */ | |
1329 | i = strspn (scan, "_"); | |
1330 | if (i > 2) | |
1331 | { | |
1332 | scan += (i - 2); | |
1333 | } | |
1334 | } | |
1335 | ||
1336 | if (scan == NULL) | |
1337 | { | |
1338 | success = 0; | |
1339 | } | |
1340 | else if (work -> static_type) | |
1341 | { | |
1342 | if (!isdigit (scan[0]) && (scan[0] != 't')) | |
1343 | { | |
1344 | success = 0; | |
1345 | } | |
1346 | } | |
1347 | else if ((scan == *mangled) && | |
1348 | (isdigit (scan[2]) || (scan[2] == 'Q') || (scan[2] == 't'))) | |
1349 | { | |
1350 | /* The ARM says nothing about the mangling of local variables. | |
1351 | But cfront mangles local variables by prepending __<nesting_level> | |
1352 | to them. As an extension to ARM demangling we handle this case. */ | |
1353 | if ((LUCID_DEMANGLING || ARM_DEMANGLING) && isdigit (scan[2])) | |
1354 | { | |
1355 | *mangled = scan + 2; | |
1356 | consume_count (mangled); | |
1357 | string_append (declp, *mangled); | |
1358 | *mangled += strlen (*mangled); | |
1359 | success = 1; | |
1360 | } | |
1361 | else | |
1362 | { | |
1363 | /* A GNU style constructor starts with __[0-9Qt]. But cfront uses | |
1364 | names like __Q2_3foo3bar for nested type names. So don't accept | |
1365 | this style of constructor for cfront demangling. */ | |
1366 | if (!(LUCID_DEMANGLING || ARM_DEMANGLING)) | |
1367 | work -> constructor += 1; | |
1368 | *mangled = scan + 2; | |
1369 | } | |
1370 | } | |
1371 | else if ((scan == *mangled) && !isdigit (scan[2]) && (scan[2] != 't')) | |
1372 | { | |
1373 | /* Mangled name starts with "__". Skip over any leading '_' characters, | |
1374 | then find the next "__" that separates the prefix from the signature. | |
1375 | */ | |
1376 | if (!(ARM_DEMANGLING || LUCID_DEMANGLING) | |
1377 | || (arm_special (work, mangled, declp) == 0)) | |
1378 | { | |
1379 | while (*scan == '_') | |
1380 | { | |
1381 | scan++; | |
1382 | } | |
f83d4617 | 1383 | if ((scan = mystrstr (scan, "__")) == NULL || (*(scan + 2) == '\0')) |
a3184468 JM |
1384 | { |
1385 | /* No separator (I.E. "__not_mangled"), or empty signature | |
1386 | (I.E. "__not_mangled_either__") */ | |
1387 | success = 0; | |
1388 | } | |
1389 | else | |
1390 | { | |
1391 | demangle_function_name (work, mangled, declp, scan); | |
1392 | } | |
1393 | } | |
1394 | } | |
1395 | else if (ARM_DEMANGLING && scan[2] == 'p' && scan[3] == 't') | |
1396 | { | |
1397 | /* Cfront-style parameterized type. Handled later as a signature. */ | |
1398 | success = 1; | |
1399 | ||
1400 | /* ARM template? */ | |
1401 | demangle_arm_pt (work, mangled, strlen (*mangled), declp); | |
1402 | } | |
1403 | else if (*(scan + 2) != '\0') | |
1404 | { | |
1405 | /* Mangled name does not start with "__" but does have one somewhere | |
1406 | in there with non empty stuff after it. Looks like a global | |
1407 | function name. */ | |
1408 | demangle_function_name (work, mangled, declp, scan); | |
1409 | } | |
1410 | else | |
1411 | { | |
1412 | /* Doesn't look like a mangled name */ | |
1413 | success = 0; | |
1414 | } | |
1415 | ||
1416 | if (!success && (work->constructor == 2 || work->destructor == 2)) | |
1417 | { | |
1418 | string_append (declp, *mangled); | |
1419 | *mangled += strlen (*mangled); | |
1420 | success = 1; | |
1421 | } | |
1422 | return (success); | |
1423 | } | |
1424 | ||
1425 | /* | |
1426 | ||
1427 | LOCAL FUNCTION | |
1428 | ||
1429 | gnu_special -- special handling of gnu mangled strings | |
1430 | ||
1431 | SYNOPSIS | |
1432 | ||
1433 | static int | |
1434 | gnu_special (struct work_stuff *work, const char **mangled, | |
1435 | string *declp); | |
1436 | ||
1437 | ||
1438 | DESCRIPTION | |
1439 | ||
1440 | Process some special GNU style mangling forms that don't fit | |
1441 | the normal pattern. For example: | |
1442 | ||
1443 | _$_3foo (destructor for class foo) | |
1444 | _vt$foo (foo virtual table) | |
1445 | _vt$foo$bar (foo::bar virtual table) | |
1446 | __vt_foo (foo virtual table, new style with thunks) | |
1447 | _3foo$varname (static data member) | |
1448 | _Q22rs2tu$vw (static data member) | |
1449 | __t6vector1Zii (constructor with template) | |
1450 | __thunk_4__$_7ostream (virtual function thunk) | |
1451 | */ | |
1452 | ||
1453 | static int | |
1454 | gnu_special (work, mangled, declp) | |
1455 | struct work_stuff *work; | |
1456 | const char **mangled; | |
1457 | string *declp; | |
1458 | { | |
1459 | int n; | |
1460 | int success = 1; | |
1461 | const char *p; | |
1462 | ||
1463 | if ((*mangled)[0] == '_' | |
1464 | && strchr (cplus_markers, (*mangled)[1]) != NULL | |
1465 | && (*mangled)[2] == '_') | |
1466 | { | |
1467 | /* Found a GNU style destructor, get past "_<CPLUS_MARKER>_" */ | |
1468 | (*mangled) += 3; | |
1469 | work -> destructor += 1; | |
1470 | } | |
1471 | else if ((*mangled)[0] == '_' | |
1472 | && (((*mangled)[1] == '_' | |
1473 | && (*mangled)[2] == 'v' | |
1474 | && (*mangled)[3] == 't' | |
1475 | && (*mangled)[4] == '_') | |
1476 | || ((*mangled)[1] == 'v' | |
1477 | && (*mangled)[2] == 't' | |
1478 | && strchr (cplus_markers, (*mangled)[3]) != NULL))) | |
1479 | { | |
1480 | /* Found a GNU style virtual table, get past "_vt<CPLUS_MARKER>" | |
1481 | and create the decl. Note that we consume the entire mangled | |
1482 | input string, which means that demangle_signature has no work | |
1483 | to do. */ | |
1484 | if ((*mangled)[2] == 'v') | |
1485 | (*mangled) += 5; /* New style, with thunks: "__vt_" */ | |
1486 | else | |
1487 | (*mangled) += 4; /* Old style, no thunks: "_vt<CPLUS_MARKER>" */ | |
1488 | while (**mangled != '\0') | |
1489 | { | |
1490 | p = strpbrk (*mangled, cplus_markers); | |
1491 | switch (**mangled) | |
1492 | { | |
1493 | case 'Q': | |
1494 | success = demangle_qualified (work, mangled, declp, 0, 1); | |
1495 | break; | |
1496 | case 't': | |
1497 | success = demangle_template (work, mangled, declp, 0); | |
1498 | break; | |
1499 | default: | |
1500 | if (isdigit(*mangled[0])) | |
1501 | { | |
1502 | n = consume_count(mangled); | |
1503 | } | |
1504 | else | |
1505 | { | |
1506 | n = strcspn (*mangled, cplus_markers); | |
1507 | } | |
1508 | string_appendn (declp, *mangled, n); | |
1509 | (*mangled) += n; | |
1510 | } | |
1511 | ||
1512 | if (success && ((p == NULL) || (p == *mangled))) | |
1513 | { | |
1514 | if (p != NULL) | |
1515 | { | |
1516 | string_append (declp, "::"); | |
1517 | (*mangled)++; | |
1518 | } | |
1519 | } | |
1520 | else | |
1521 | { | |
1522 | success = 0; | |
1523 | break; | |
1524 | } | |
1525 | } | |
1526 | if (success) | |
1527 | string_append (declp, " virtual table"); | |
1528 | } | |
1529 | else if ((*mangled)[0] == '_' | |
1530 | && (strchr("0123456789Qt", (*mangled)[1]) != NULL) | |
1531 | && (p = strpbrk (*mangled, cplus_markers)) != NULL) | |
1532 | { | |
1533 | /* static data member, "_3foo$varname" for example */ | |
1534 | (*mangled)++; | |
1535 | switch (**mangled) | |
1536 | { | |
1537 | case 'Q': | |
1538 | success = demangle_qualified (work, mangled, declp, 0, 1); | |
1539 | break; | |
1540 | case 't': | |
1541 | success = demangle_template (work, mangled, declp, 0); | |
1542 | break; | |
1543 | default: | |
1544 | n = consume_count (mangled); | |
1545 | string_appendn (declp, *mangled, n); | |
1546 | (*mangled) += n; | |
1547 | } | |
1548 | if (success && (p == *mangled)) | |
1549 | { | |
1550 | /* Consumed everything up to the cplus_marker, append the | |
1551 | variable name. */ | |
1552 | (*mangled)++; | |
1553 | string_append (declp, "::"); | |
1554 | n = strlen (*mangled); | |
1555 | string_appendn (declp, *mangled, n); | |
1556 | (*mangled) += n; | |
1557 | } | |
1558 | else | |
1559 | { | |
1560 | success = 0; | |
1561 | } | |
1562 | } | |
1563 | else if (strncmp (*mangled, "__thunk_", 8) == 0) | |
1564 | { | |
1565 | int delta = ((*mangled) += 8, consume_count (mangled)); | |
1566 | char *method = cplus_demangle (++*mangled, work->options); | |
1567 | if (method) | |
1568 | { | |
1569 | char buf[50]; | |
1570 | sprintf (buf, "virtual function thunk (delta:%d) for ", -delta); | |
1571 | string_append (declp, buf); | |
1572 | string_append (declp, method); | |
1573 | free (method); | |
1574 | n = strlen (*mangled); | |
1575 | (*mangled) += n; | |
1576 | } | |
1577 | else | |
1578 | { | |
1579 | success = 0; | |
1580 | } | |
1581 | } | |
1582 | else | |
1583 | { | |
1584 | success = 0; | |
1585 | } | |
1586 | return (success); | |
1587 | } | |
1588 | ||
1589 | /* | |
1590 | ||
1591 | LOCAL FUNCTION | |
1592 | ||
1593 | arm_special -- special handling of ARM/lucid mangled strings | |
1594 | ||
1595 | SYNOPSIS | |
1596 | ||
1597 | static int | |
1598 | arm_special (struct work_stuff *work, const char **mangled, | |
1599 | string *declp); | |
1600 | ||
1601 | ||
1602 | DESCRIPTION | |
1603 | ||
1604 | Process some special ARM style mangling forms that don't fit | |
1605 | the normal pattern. For example: | |
1606 | ||
1607 | __vtbl__3foo (foo virtual table) | |
1608 | __vtbl__3foo__3bar (bar::foo virtual table) | |
1609 | ||
1610 | */ | |
1611 | ||
1612 | static int | |
1613 | arm_special (work, mangled, declp) | |
1614 | struct work_stuff *work; | |
1615 | const char **mangled; | |
1616 | string *declp; | |
1617 | { | |
1618 | int n; | |
1619 | int success = 1; | |
1620 | const char *scan; | |
1621 | ||
1622 | if (strncmp (*mangled, ARM_VTABLE_STRING, ARM_VTABLE_STRLEN) == 0) | |
1623 | { | |
1624 | /* Found a ARM style virtual table, get past ARM_VTABLE_STRING | |
1625 | and create the decl. Note that we consume the entire mangled | |
1626 | input string, which means that demangle_signature has no work | |
1627 | to do. */ | |
1628 | scan = *mangled + ARM_VTABLE_STRLEN; | |
1629 | while (*scan != '\0') /* first check it can be demangled */ | |
1630 | { | |
1631 | n = consume_count (&scan); | |
1632 | if (n==0) | |
1633 | { | |
1634 | return (0); /* no good */ | |
1635 | } | |
1636 | scan += n; | |
1637 | if (scan[0] == '_' && scan[1] == '_') | |
1638 | { | |
1639 | scan += 2; | |
1640 | } | |
1641 | } | |
1642 | (*mangled) += ARM_VTABLE_STRLEN; | |
1643 | while (**mangled != '\0') | |
1644 | { | |
1645 | n = consume_count (mangled); | |
1646 | string_prependn (declp, *mangled, n); | |
1647 | (*mangled) += n; | |
1648 | if ((*mangled)[0] == '_' && (*mangled)[1] == '_') | |
1649 | { | |
1650 | string_prepend (declp, "::"); | |
1651 | (*mangled) += 2; | |
1652 | } | |
1653 | } | |
1654 | string_append (declp, " virtual table"); | |
1655 | } | |
1656 | else | |
1657 | { | |
1658 | success = 0; | |
1659 | } | |
1660 | return (success); | |
1661 | } | |
1662 | ||
1663 | /* | |
1664 | ||
1665 | LOCAL FUNCTION | |
1666 | ||
1667 | demangle_qualified -- demangle 'Q' qualified name strings | |
1668 | ||
1669 | SYNOPSIS | |
1670 | ||
1671 | static int | |
1672 | demangle_qualified (struct work_stuff *, const char *mangled, | |
1673 | string *result, int isfuncname, int append); | |
1674 | ||
1675 | DESCRIPTION | |
1676 | ||
1677 | Demangle a qualified name, such as "Q25Outer5Inner" which is | |
1678 | the mangled form of "Outer::Inner". The demangled output is | |
1679 | prepended or appended to the result string according to the | |
1680 | state of the append flag. | |
1681 | ||
1682 | If isfuncname is nonzero, then the qualified name we are building | |
1683 | is going to be used as a member function name, so if it is a | |
1684 | constructor or destructor function, append an appropriate | |
1685 | constructor or destructor name. I.E. for the above example, | |
1686 | the result for use as a constructor is "Outer::Inner::Inner" | |
1687 | and the result for use as a destructor is "Outer::Inner::~Inner". | |
1688 | ||
1689 | BUGS | |
1690 | ||
1691 | Numeric conversion is ASCII dependent (FIXME). | |
1692 | ||
1693 | */ | |
1694 | ||
1695 | static int | |
1696 | demangle_qualified (work, mangled, result, isfuncname, append) | |
1697 | struct work_stuff *work; | |
1698 | const char **mangled; | |
1699 | string *result; | |
1700 | int isfuncname; | |
1701 | int append; | |
1702 | { | |
1703 | int qualifiers; | |
1704 | int namelength; | |
1705 | int success = 1; | |
1706 | const char *p; | |
1707 | char num[2]; | |
1708 | string temp; | |
1709 | ||
1710 | string_init (&temp); | |
1711 | switch ((*mangled)[1]) | |
1712 | { | |
1713 | case '_': | |
1714 | /* GNU mangled name with more than 9 classes. The count is preceded | |
1715 | by an underscore (to distinguish it from the <= 9 case) and followed | |
1716 | by an underscore. */ | |
1717 | p = *mangled + 2; | |
1718 | qualifiers = atoi (p); | |
1719 | if (!isdigit (*p) || *p == '0') | |
1720 | success = 0; | |
1721 | ||
1722 | /* Skip the digits. */ | |
1723 | while (isdigit (*p)) | |
1724 | ++p; | |
1725 | ||
1726 | if (*p != '_') | |
1727 | success = 0; | |
1728 | ||
1729 | *mangled = p + 1; | |
1730 | break; | |
1731 | ||
1732 | case '1': | |
1733 | case '2': | |
1734 | case '3': | |
1735 | case '4': | |
1736 | case '5': | |
1737 | case '6': | |
1738 | case '7': | |
1739 | case '8': | |
1740 | case '9': | |
1741 | /* The count is in a single digit. */ | |
1742 | num[0] = (*mangled)[1]; | |
1743 | num[1] = '\0'; | |
1744 | qualifiers = atoi (num); | |
1745 | ||
1746 | /* If there is an underscore after the digit, skip it. This is | |
1747 | said to be for ARM-qualified names, but the ARM makes no | |
1748 | mention of such an underscore. Perhaps cfront uses one. */ | |
1749 | if ((*mangled)[2] == '_') | |
1750 | { | |
1751 | (*mangled)++; | |
1752 | } | |
1753 | (*mangled) += 2; | |
1754 | break; | |
1755 | ||
1756 | case '0': | |
1757 | default: | |
1758 | success = 0; | |
1759 | } | |
1760 | ||
1761 | if (!success) | |
1762 | return success; | |
1763 | ||
1764 | /* Pick off the names and collect them in the temp buffer in the order | |
1765 | in which they are found, separated by '::'. */ | |
1766 | ||
1767 | while (qualifiers-- > 0) | |
1768 | { | |
1769 | if (*mangled[0] == '_') | |
1770 | *mangled = *mangled + 1; | |
1771 | if (*mangled[0] == 't') | |
1772 | { | |
1773 | success = demangle_template(work, mangled, &temp, 0); | |
1774 | if (!success) break; | |
1775 | } | |
1776 | else | |
1777 | { | |
1778 | namelength = consume_count (mangled); | |
1779 | if (strlen (*mangled) < namelength) | |
1780 | { | |
1781 | /* Simple sanity check failed */ | |
1782 | success = 0; | |
1783 | break; | |
1784 | } | |
1785 | string_appendn (&temp, *mangled, namelength); | |
1786 | *mangled += namelength; | |
1787 | } | |
1788 | if (qualifiers > 0) | |
1789 | { | |
1790 | string_appendn (&temp, "::", 2); | |
1791 | } | |
1792 | } | |
1793 | ||
1794 | /* If we are using the result as a function name, we need to append | |
1795 | the appropriate '::' separated constructor or destructor name. | |
1796 | We do this here because this is the most convenient place, where | |
1797 | we already have a pointer to the name and the length of the name. */ | |
1798 | ||
1799 | if (isfuncname && (work->constructor & 1 || work->destructor & 1)) | |
1800 | { | |
1801 | string_appendn (&temp, "::", 2); | |
1802 | if (work -> destructor & 1) | |
1803 | { | |
1804 | string_append (&temp, "~"); | |
1805 | } | |
1806 | string_appendn (&temp, (*mangled) - namelength, namelength); | |
1807 | } | |
1808 | ||
1809 | /* Now either prepend the temp buffer to the result, or append it, | |
1810 | depending upon the state of the append flag. */ | |
1811 | ||
1812 | if (append) | |
1813 | { | |
1814 | string_appends (result, &temp); | |
1815 | } | |
1816 | else | |
1817 | { | |
1818 | if (!STRING_EMPTY (result)) | |
1819 | { | |
1820 | string_appendn (&temp, "::", 2); | |
1821 | } | |
1822 | string_prepends (result, &temp); | |
1823 | } | |
1824 | ||
1825 | string_delete (&temp); | |
1826 | return (success); | |
1827 | } | |
1828 | ||
1829 | /* | |
1830 | ||
1831 | LOCAL FUNCTION | |
1832 | ||
1833 | get_count -- convert an ascii count to integer, consuming tokens | |
1834 | ||
1835 | SYNOPSIS | |
1836 | ||
1837 | static int | |
1838 | get_count (const char **type, int *count) | |
1839 | ||
1840 | DESCRIPTION | |
1841 | ||
1842 | Return 0 if no conversion is performed, 1 if a string is converted. | |
1843 | */ | |
1844 | ||
1845 | static int | |
1846 | get_count (type, count) | |
1847 | const char **type; | |
1848 | int *count; | |
1849 | { | |
1850 | const char *p; | |
1851 | int n; | |
1852 | ||
1853 | if (!isdigit (**type)) | |
1854 | { | |
1855 | return (0); | |
1856 | } | |
1857 | else | |
1858 | { | |
1859 | *count = **type - '0'; | |
1860 | (*type)++; | |
1861 | if (isdigit (**type)) | |
1862 | { | |
1863 | p = *type; | |
1864 | n = *count; | |
1865 | do | |
1866 | { | |
1867 | n *= 10; | |
1868 | n += *p - '0'; | |
1869 | p++; | |
1870 | } | |
1871 | while (isdigit (*p)); | |
1872 | if (*p == '_') | |
1873 | { | |
1874 | *type = p + 1; | |
1875 | *count = n; | |
1876 | } | |
1877 | } | |
1878 | } | |
1879 | return (1); | |
1880 | } | |
1881 | ||
1882 | /* result will be initialised here; it will be freed on failure */ | |
1883 | ||
1884 | static int | |
1885 | do_type (work, mangled, result) | |
1886 | struct work_stuff *work; | |
1887 | const char **mangled; | |
1888 | string *result; | |
1889 | { | |
1890 | int n; | |
1891 | int done; | |
1892 | int success; | |
1893 | string decl; | |
1894 | const char *remembered_type; | |
1895 | int constp; | |
1896 | int volatilep; | |
1897 | ||
1898 | string_init (&decl); | |
1899 | string_init (result); | |
1900 | ||
1901 | done = 0; | |
1902 | success = 1; | |
1903 | while (success && !done) | |
1904 | { | |
1905 | int member; | |
1906 | switch (**mangled) | |
1907 | { | |
1908 | ||
1909 | /* A pointer type */ | |
1910 | case 'P': | |
1911 | case 'p': | |
1912 | (*mangled)++; | |
1913 | string_prepend (&decl, "*"); | |
1914 | break; | |
1915 | ||
1916 | /* A reference type */ | |
1917 | case 'R': | |
1918 | (*mangled)++; | |
1919 | string_prepend (&decl, "&"); | |
1920 | break; | |
1921 | ||
1922 | /* An array */ | |
1923 | case 'A': | |
1924 | { | |
1925 | const char *p = ++(*mangled); | |
1926 | ||
1927 | string_prepend (&decl, "("); | |
1928 | string_append (&decl, ")["); | |
1929 | /* Copy anything up until the next underscore (the size of the | |
1930 | array). */ | |
1931 | while (**mangled && **mangled != '_') | |
1932 | ++(*mangled); | |
1933 | if (**mangled == '_') | |
1934 | { | |
1935 | string_appendn (&decl, p, *mangled - p); | |
1936 | string_append (&decl, "]"); | |
1937 | *mangled += 1; | |
1938 | } | |
1939 | else | |
1940 | success = 0; | |
1941 | break; | |
1942 | } | |
1943 | ||
1944 | /* A back reference to a previously seen type */ | |
1945 | case 'T': | |
1946 | (*mangled)++; | |
1947 | if (!get_count (mangled, &n) || n >= work -> ntypes) | |
1948 | { | |
1949 | success = 0; | |
1950 | } | |
1951 | else | |
1952 | { | |
1953 | remembered_type = work -> typevec[n]; | |
1954 | mangled = &remembered_type; | |
1955 | } | |
1956 | break; | |
1957 | ||
1958 | /* A function */ | |
1959 | case 'F': | |
1960 | (*mangled)++; | |
1961 | if (!STRING_EMPTY (&decl) && decl.b[0] == '*') | |
1962 | { | |
1963 | string_prepend (&decl, "("); | |
1964 | string_append (&decl, ")"); | |
1965 | } | |
1966 | /* After picking off the function args, we expect to either find the | |
1967 | function return type (preceded by an '_') or the end of the | |
1968 | string. */ | |
1969 | if (!demangle_args (work, mangled, &decl) | |
1970 | || (**mangled != '_' && **mangled != '\0')) | |
1971 | { | |
1972 | success = 0; | |
1973 | } | |
1974 | if (success && (**mangled == '_')) | |
1975 | { | |
1976 | (*mangled)++; | |
1977 | } | |
1978 | break; | |
1979 | ||
1980 | case 'M': | |
1981 | case 'O': | |
1982 | { | |
1983 | constp = 0; | |
1984 | volatilep = 0; | |
1985 | ||
1986 | member = **mangled == 'M'; | |
1987 | (*mangled)++; | |
1988 | if (!isdigit (**mangled)) | |
1989 | { | |
1990 | success = 0; | |
1991 | break; | |
1992 | } | |
1993 | n = consume_count (mangled); | |
1994 | if (strlen (*mangled) < n) | |
1995 | { | |
1996 | success = 0; | |
1997 | break; | |
1998 | } | |
1999 | string_append (&decl, ")"); | |
2000 | string_prepend (&decl, "::"); | |
2001 | string_prependn (&decl, *mangled, n); | |
2002 | string_prepend (&decl, "("); | |
2003 | *mangled += n; | |
2004 | if (member) | |
2005 | { | |
2006 | if (**mangled == 'C') | |
2007 | { | |
2008 | (*mangled)++; | |
2009 | constp = 1; | |
2010 | } | |
2011 | if (**mangled == 'V') | |
2012 | { | |
2013 | (*mangled)++; | |
2014 | volatilep = 1; | |
2015 | } | |
2016 | if (*(*mangled)++ != 'F') | |
2017 | { | |
2018 | success = 0; | |
2019 | break; | |
2020 | } | |
2021 | } | |
2022 | if ((member && !demangle_args (work, mangled, &decl)) | |
2023 | || **mangled != '_') | |
2024 | { | |
2025 | success = 0; | |
2026 | break; | |
2027 | } | |
2028 | (*mangled)++; | |
2029 | if (! PRINT_ANSI_QUALIFIERS) | |
2030 | { | |
2031 | break; | |
2032 | } | |
2033 | if (constp) | |
2034 | { | |
2035 | APPEND_BLANK (&decl); | |
2036 | string_append (&decl, "const"); | |
2037 | } | |
2038 | if (volatilep) | |
2039 | { | |
2040 | APPEND_BLANK (&decl); | |
2041 | string_append (&decl, "volatile"); | |
2042 | } | |
2043 | break; | |
2044 | } | |
2045 | case 'G': | |
2046 | (*mangled)++; | |
2047 | break; | |
2048 | ||
2049 | case 'C': | |
2050 | (*mangled)++; | |
2051 | /* | |
2052 | if ((*mangled)[1] == 'P') | |
2053 | { | |
2054 | */ | |
2055 | if (PRINT_ANSI_QUALIFIERS) | |
2056 | { | |
2057 | if (!STRING_EMPTY (&decl)) | |
2058 | { | |
2059 | string_prepend (&decl, " "); | |
2060 | } | |
2061 | string_prepend (&decl, "const"); | |
2062 | } | |
2063 | break; | |
2064 | /* | |
2065 | } | |
2066 | */ | |
2067 | ||
2068 | /* fall through */ | |
2069 | default: | |
2070 | done = 1; | |
2071 | break; | |
2072 | } | |
2073 | } | |
2074 | ||
2075 | switch (**mangled) | |
2076 | { | |
2077 | /* A qualified name, such as "Outer::Inner". */ | |
2078 | case 'Q': | |
2079 | success = demangle_qualified (work, mangled, result, 0, 1); | |
2080 | break; | |
2081 | ||
2082 | default: | |
2083 | success = demangle_fund_type (work, mangled, result); | |
2084 | break; | |
2085 | } | |
2086 | ||
2087 | if (success) | |
2088 | { | |
2089 | if (!STRING_EMPTY (&decl)) | |
2090 | { | |
2091 | string_append (result, " "); | |
2092 | string_appends (result, &decl); | |
2093 | } | |
2094 | } | |
2095 | else | |
2096 | { | |
2097 | string_delete (result); | |
2098 | } | |
2099 | string_delete (&decl); | |
2100 | return (success); | |
2101 | } | |
2102 | ||
2103 | /* Given a pointer to a type string that represents a fundamental type | |
2104 | argument (int, long, unsigned int, etc) in TYPE, a pointer to the | |
2105 | string in which the demangled output is being built in RESULT, and | |
2106 | the WORK structure, decode the types and add them to the result. | |
2107 | ||
2108 | For example: | |
2109 | ||
2110 | "Ci" => "const int" | |
2111 | "Sl" => "signed long" | |
2112 | "CUs" => "const unsigned short" | |
2113 | ||
2114 | */ | |
2115 | ||
2116 | static int | |
2117 | demangle_fund_type (work, mangled, result) | |
2118 | struct work_stuff *work; | |
2119 | const char **mangled; | |
2120 | string *result; | |
2121 | { | |
2122 | int done = 0; | |
2123 | int success = 1; | |
2124 | ||
2125 | /* First pick off any type qualifiers. There can be more than one. */ | |
2126 | ||
2127 | while (!done) | |
2128 | { | |
2129 | switch (**mangled) | |
2130 | { | |
2131 | case 'C': | |
2132 | (*mangled)++; | |
2133 | if (PRINT_ANSI_QUALIFIERS) | |
2134 | { | |
2135 | APPEND_BLANK (result); | |
2136 | string_append (result, "const"); | |
2137 | } | |
2138 | break; | |
2139 | case 'U': | |
2140 | (*mangled)++; | |
2141 | APPEND_BLANK (result); | |
2142 | string_append (result, "unsigned"); | |
2143 | break; | |
2144 | case 'S': /* signed char only */ | |
2145 | (*mangled)++; | |
2146 | APPEND_BLANK (result); | |
2147 | string_append (result, "signed"); | |
2148 | break; | |
2149 | case 'V': | |
2150 | (*mangled)++; | |
2151 | if (PRINT_ANSI_QUALIFIERS) | |
2152 | { | |
2153 | APPEND_BLANK (result); | |
2154 | string_append (result, "volatile"); | |
2155 | } | |
2156 | break; | |
2157 | default: | |
2158 | done = 1; | |
2159 | break; | |
2160 | } | |
2161 | } | |
2162 | ||
2163 | /* Now pick off the fundamental type. There can be only one. */ | |
2164 | ||
2165 | switch (**mangled) | |
2166 | { | |
2167 | case '\0': | |
2168 | case '_': | |
2169 | break; | |
2170 | case 'v': | |
2171 | (*mangled)++; | |
2172 | APPEND_BLANK (result); | |
2173 | string_append (result, "void"); | |
2174 | break; | |
2175 | case 'x': | |
2176 | (*mangled)++; | |
2177 | APPEND_BLANK (result); | |
2178 | string_append (result, "long long"); | |
2179 | break; | |
2180 | case 'l': | |
2181 | (*mangled)++; | |
2182 | APPEND_BLANK (result); | |
2183 | string_append (result, "long"); | |
2184 | break; | |
2185 | case 'i': | |
2186 | (*mangled)++; | |
2187 | APPEND_BLANK (result); | |
2188 | string_append (result, "int"); | |
2189 | break; | |
2190 | case 's': | |
2191 | (*mangled)++; | |
2192 | APPEND_BLANK (result); | |
2193 | string_append (result, "short"); | |
2194 | break; | |
2195 | case 'b': | |
2196 | (*mangled)++; | |
2197 | APPEND_BLANK (result); | |
2198 | string_append (result, "bool"); | |
2199 | break; | |
2200 | case 'c': | |
2201 | (*mangled)++; | |
2202 | APPEND_BLANK (result); | |
2203 | string_append (result, "char"); | |
2204 | break; | |
2205 | case 'w': | |
2206 | (*mangled)++; | |
2207 | APPEND_BLANK (result); | |
2208 | string_append (result, "wchar_t"); | |
2209 | break; | |
2210 | case 'r': | |
2211 | (*mangled)++; | |
2212 | APPEND_BLANK (result); | |
2213 | string_append (result, "long double"); | |
2214 | break; | |
2215 | case 'd': | |
2216 | (*mangled)++; | |
2217 | APPEND_BLANK (result); | |
2218 | string_append (result, "double"); | |
2219 | break; | |
2220 | case 'f': | |
2221 | (*mangled)++; | |
2222 | APPEND_BLANK (result); | |
2223 | string_append (result, "float"); | |
2224 | break; | |
2225 | case 'G': | |
2226 | (*mangled)++; | |
2227 | if (!isdigit (**mangled)) | |
2228 | { | |
2229 | success = 0; | |
2230 | break; | |
2231 | } | |
2232 | /* fall through */ | |
2233 | /* An explicit type, such as "6mytype" or "7integer" */ | |
2234 | case '0': | |
2235 | case '1': | |
2236 | case '2': | |
2237 | case '3': | |
2238 | case '4': | |
2239 | case '5': | |
2240 | case '6': | |
2241 | case '7': | |
2242 | case '8': | |
2243 | case '9': | |
2244 | APPEND_BLANK (result); | |
2245 | if (!demangle_class_name (work, mangled, result)) { | |
2246 | --result->p; | |
2247 | success = 0; | |
2248 | } | |
2249 | break; | |
2250 | case 't': | |
2251 | success = demangle_template(work,mangled, result, 0); | |
2252 | break; | |
2253 | default: | |
2254 | success = 0; | |
2255 | break; | |
2256 | } | |
2257 | ||
2258 | return (success); | |
2259 | } | |
2260 | ||
2261 | /* `result' will be initialized in do_type; it will be freed on failure */ | |
2262 | ||
2263 | static int | |
2264 | do_arg (work, mangled, result) | |
2265 | struct work_stuff *work; | |
2266 | const char **mangled; | |
2267 | string *result; | |
2268 | { | |
2269 | const char *start = *mangled; | |
2270 | ||
2271 | if (!do_type (work, mangled, result)) | |
2272 | { | |
2273 | return (0); | |
2274 | } | |
2275 | else | |
2276 | { | |
2277 | remember_type (work, start, *mangled - start); | |
2278 | return (1); | |
2279 | } | |
2280 | } | |
2281 | ||
2282 | static void | |
2283 | remember_type (work, start, len) | |
2284 | struct work_stuff *work; | |
2285 | const char *start; | |
2286 | int len; | |
2287 | { | |
2288 | char *tem; | |
2289 | ||
2290 | if (work -> ntypes >= work -> typevec_size) | |
2291 | { | |
2292 | if (work -> typevec_size == 0) | |
2293 | { | |
2294 | work -> typevec_size = 3; | |
2295 | work -> typevec = | |
2296 | (char **) xmalloc (sizeof (char *) * work -> typevec_size); | |
2297 | } | |
2298 | else | |
2299 | { | |
2300 | work -> typevec_size *= 2; | |
2301 | work -> typevec = | |
2302 | (char **) xrealloc ((char *)work -> typevec, | |
2303 | sizeof (char *) * work -> typevec_size); | |
2304 | } | |
2305 | } | |
2306 | tem = xmalloc (len + 1); | |
2307 | memcpy (tem, start, len); | |
2308 | tem[len] = '\0'; | |
2309 | work -> typevec[work -> ntypes++] = tem; | |
2310 | } | |
2311 | ||
2312 | /* Forget the remembered types, but not the type vector itself. */ | |
2313 | ||
2314 | static void | |
2315 | forget_types (work) | |
2316 | struct work_stuff *work; | |
2317 | { | |
2318 | int i; | |
2319 | ||
2320 | while (work -> ntypes > 0) | |
2321 | { | |
2322 | i = --(work -> ntypes); | |
2323 | if (work -> typevec[i] != NULL) | |
2324 | { | |
2325 | free (work -> typevec[i]); | |
2326 | work -> typevec[i] = NULL; | |
2327 | } | |
2328 | } | |
2329 | } | |
2330 | ||
2331 | /* Process the argument list part of the signature, after any class spec | |
2332 | has been consumed, as well as the first 'F' character (if any). For | |
2333 | example: | |
2334 | ||
2335 | "__als__3fooRT0" => process "RT0" | |
2336 | "complexfunc5__FPFPc_PFl_i" => process "PFPc_PFl_i" | |
2337 | ||
2338 | DECLP must be already initialised, usually non-empty. It won't be freed | |
2339 | on failure. | |
2340 | ||
2341 | Note that g++ differs significantly from ARM and lucid style mangling | |
2342 | with regards to references to previously seen types. For example, given | |
2343 | the source fragment: | |
2344 | ||
2345 | class foo { | |
2346 | public: | |
2347 | foo::foo (int, foo &ia, int, foo &ib, int, foo &ic); | |
2348 | }; | |
2349 | ||
2350 | foo::foo (int, foo &ia, int, foo &ib, int, foo &ic) { ia = ib = ic; } | |
2351 | void foo (int, foo &ia, int, foo &ib, int, foo &ic) { ia = ib = ic; } | |
2352 | ||
2353 | g++ produces the names: | |
2354 | ||
2355 | __3fooiRT0iT2iT2 | |
2356 | foo__FiR3fooiT1iT1 | |
2357 | ||
2358 | while lcc (and presumably other ARM style compilers as well) produces: | |
2359 | ||
2360 | foo__FiR3fooT1T2T1T2 | |
2361 | __ct__3fooFiR3fooT1T2T1T2 | |
2362 | ||
2363 | Note that g++ bases it's type numbers starting at zero and counts all | |
2364 | previously seen types, while lucid/ARM bases it's type numbers starting | |
2365 | at one and only considers types after it has seen the 'F' character | |
2366 | indicating the start of the function args. For lucid/ARM style, we | |
2367 | account for this difference by discarding any previously seen types when | |
2368 | we see the 'F' character, and subtracting one from the type number | |
2369 | reference. | |
2370 | ||
2371 | */ | |
2372 | ||
2373 | static int | |
2374 | demangle_args (work, mangled, declp) | |
2375 | struct work_stuff *work; | |
2376 | const char **mangled; | |
2377 | string *declp; | |
2378 | { | |
2379 | string arg; | |
2380 | int need_comma = 0; | |
2381 | int r; | |
2382 | int t; | |
2383 | const char *tem; | |
2384 | char temptype; | |
2385 | ||
2386 | if (PRINT_ARG_TYPES) | |
2387 | { | |
2388 | string_append (declp, "("); | |
2389 | if (**mangled == '\0') | |
2390 | { | |
2391 | string_append (declp, "void"); | |
2392 | } | |
2393 | } | |
2394 | ||
2395 | while (**mangled != '_' && **mangled != '\0' && **mangled != 'e') | |
2396 | { | |
2397 | if ((**mangled == 'N') || (**mangled == 'T')) | |
2398 | { | |
2399 | temptype = *(*mangled)++; | |
2400 | ||
2401 | if (temptype == 'N') | |
2402 | { | |
2403 | if (!get_count (mangled, &r)) | |
2404 | { | |
2405 | return (0); | |
2406 | } | |
2407 | } | |
2408 | else | |
2409 | { | |
2410 | r = 1; | |
2411 | } | |
2412 | if (ARM_DEMANGLING && work -> ntypes >= 10) | |
2413 | { | |
2414 | /* If we have 10 or more types we might have more than a 1 digit | |
2415 | index so we'll have to consume the whole count here. This | |
ddd5a7c1 | 2416 | will lose if the next thing is a type name preceded by a |
a3184468 JM |
2417 | count but it's impossible to demangle that case properly |
2418 | anyway. Eg if we already have 12 types is T12Pc "(..., type1, | |
a3184468 JM |
2419 | Pc, ...)" or "(..., type12, char *, ...)" */ |
2420 | if ((t = consume_count(mangled)) == 0) | |
2421 | { | |
2422 | return (0); | |
2423 | } | |
2424 | } | |
2425 | else | |
2426 | { | |
2427 | if (!get_count (mangled, &t)) | |
2428 | { | |
2429 | return (0); | |
2430 | } | |
2431 | } | |
2432 | if (LUCID_DEMANGLING || ARM_DEMANGLING) | |
2433 | { | |
2434 | t--; | |
2435 | } | |
2436 | /* Validate the type index. Protect against illegal indices from | |
2437 | malformed type strings. */ | |
2438 | if ((t < 0) || (t >= work -> ntypes)) | |
2439 | { | |
2440 | return (0); | |
2441 | } | |
2442 | while (--r >= 0) | |
2443 | { | |
2444 | tem = work -> typevec[t]; | |
2445 | if (need_comma && PRINT_ARG_TYPES) | |
2446 | { | |
2447 | string_append (declp, ", "); | |
2448 | } | |
2449 | if (!do_arg (work, &tem, &arg)) | |
2450 | { | |
2451 | return (0); | |
2452 | } | |
2453 | if (PRINT_ARG_TYPES) | |
2454 | { | |
2455 | string_appends (declp, &arg); | |
2456 | } | |
2457 | string_delete (&arg); | |
2458 | need_comma = 1; | |
2459 | } | |
2460 | } | |
2461 | else | |
2462 | { | |
2463 | if (need_comma & PRINT_ARG_TYPES) | |
2464 | { | |
2465 | string_append (declp, ", "); | |
2466 | } | |
2467 | if (!do_arg (work, mangled, &arg)) | |
2468 | { | |
2469 | return (0); | |
2470 | } | |
2471 | if (PRINT_ARG_TYPES) | |
2472 | { | |
2473 | string_appends (declp, &arg); | |
2474 | } | |
2475 | string_delete (&arg); | |
2476 | need_comma = 1; | |
2477 | } | |
2478 | } | |
2479 | ||
2480 | if (**mangled == 'e') | |
2481 | { | |
2482 | (*mangled)++; | |
2483 | if (PRINT_ARG_TYPES) | |
2484 | { | |
2485 | if (need_comma) | |
2486 | { | |
2487 | string_append (declp, ","); | |
2488 | } | |
2489 | string_append (declp, "..."); | |
2490 | } | |
2491 | } | |
2492 | ||
2493 | if (PRINT_ARG_TYPES) | |
2494 | { | |
2495 | string_append (declp, ")"); | |
2496 | } | |
2497 | return (1); | |
2498 | } | |
2499 | ||
2500 | static void | |
2501 | demangle_function_name (work, mangled, declp, scan) | |
2502 | struct work_stuff *work; | |
2503 | const char **mangled; | |
2504 | string *declp; | |
2505 | const char *scan; | |
2506 | { | |
2507 | int i; | |
2508 | int len; | |
2509 | string type; | |
2510 | const char *tem; | |
2511 | ||
2512 | string_appendn (declp, (*mangled), scan - (*mangled)); | |
2513 | string_need (declp, 1); | |
2514 | *(declp -> p) = '\0'; | |
2515 | ||
2516 | /* Consume the function name, including the "__" separating the name | |
2517 | from the signature. We are guaranteed that SCAN points to the | |
2518 | separator. */ | |
2519 | ||
2520 | (*mangled) = scan + 2; | |
2521 | ||
2522 | if (LUCID_DEMANGLING || ARM_DEMANGLING) | |
2523 | { | |
2524 | ||
2525 | /* See if we have an ARM style constructor or destructor operator. | |
2526 | If so, then just record it, clear the decl, and return. | |
2527 | We can't build the actual constructor/destructor decl until later, | |
2528 | when we recover the class name from the signature. */ | |
2529 | ||
2530 | if (strcmp (declp -> b, "__ct") == 0) | |
2531 | { | |
2532 | work -> constructor += 1; | |
2533 | string_clear (declp); | |
2534 | return; | |
2535 | } | |
2536 | else if (strcmp (declp -> b, "__dt") == 0) | |
2537 | { | |
2538 | work -> destructor += 1; | |
2539 | string_clear (declp); | |
2540 | return; | |
2541 | } | |
2542 | } | |
2543 | ||
2544 | if (declp->p - declp->b >= 3 | |
2545 | && declp->b[0] == 'o' | |
2546 | && declp->b[1] == 'p' | |
2547 | && strchr (cplus_markers, declp->b[2]) != NULL) | |
2548 | { | |
2549 | /* see if it's an assignment expression */ | |
2550 | if (declp->p - declp->b >= 10 /* op$assign_ */ | |
2551 | && memcmp (declp->b + 3, "assign_", 7) == 0) | |
2552 | { | |
2553 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) | |
2554 | { | |
2555 | len = declp->p - declp->b - 10; | |
2556 | if (strlen (optable[i].in) == len | |
2557 | && memcmp (optable[i].in, declp->b + 10, len) == 0) | |
2558 | { | |
2559 | string_clear (declp); | |
2560 | string_append (declp, "operator"); | |
2561 | string_append (declp, optable[i].out); | |
2562 | string_append (declp, "="); | |
2563 | break; | |
2564 | } | |
2565 | } | |
2566 | } | |
2567 | else | |
2568 | { | |
2569 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) | |
2570 | { | |
2571 | int len = declp->p - declp->b - 3; | |
2572 | if (strlen (optable[i].in) == len | |
2573 | && memcmp (optable[i].in, declp->b + 3, len) == 0) | |
2574 | { | |
2575 | string_clear (declp); | |
2576 | string_append (declp, "operator"); | |
2577 | string_append (declp, optable[i].out); | |
2578 | break; | |
2579 | } | |
2580 | } | |
2581 | } | |
2582 | } | |
2583 | else if (declp->p - declp->b >= 5 && memcmp (declp->b, "type", 4) == 0 | |
2584 | && strchr (cplus_markers, declp->b[4]) != NULL) | |
2585 | { | |
2586 | /* type conversion operator */ | |
2587 | tem = declp->b + 5; | |
2588 | if (do_type (work, &tem, &type)) | |
2589 | { | |
2590 | string_clear (declp); | |
2591 | string_append (declp, "operator "); | |
2592 | string_appends (declp, &type); | |
2593 | string_delete (&type); | |
2594 | } | |
2595 | } | |
2596 | else if (declp->b[0] == '_' && declp->b[1] == '_' | |
2597 | && declp->b[2] == 'o' && declp->b[3] == 'p') | |
2598 | { | |
2599 | /* ANSI. */ | |
2600 | /* type conversion operator. */ | |
2601 | tem = declp->b + 4; | |
2602 | if (do_type (work, &tem, &type)) | |
2603 | { | |
2604 | string_clear (declp); | |
2605 | string_append (declp, "operator "); | |
2606 | string_appends (declp, &type); | |
2607 | string_delete (&type); | |
2608 | } | |
2609 | } | |
2610 | else if (declp->b[0] == '_' && declp->b[1] == '_' | |
2611 | && declp->b[2] >= 'a' && declp->b[2] <= 'z' | |
2612 | && declp->b[3] >= 'a' && declp->b[3] <= 'z') | |
2613 | { | |
2614 | if (declp->b[4] == '\0') | |
2615 | { | |
2616 | /* Operator. */ | |
2617 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) | |
2618 | { | |
2619 | if (strlen (optable[i].in) == 2 | |
2620 | && memcmp (optable[i].in, declp->b + 2, 2) == 0) | |
2621 | { | |
2622 | string_clear (declp); | |
2623 | string_append (declp, "operator"); | |
2624 | string_append (declp, optable[i].out); | |
2625 | break; | |
2626 | } | |
2627 | } | |
2628 | } | |
2629 | else | |
2630 | { | |
2631 | if (declp->b[2] == 'a' && declp->b[5] == '\0') | |
2632 | { | |
2633 | /* Assignment. */ | |
2634 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) | |
2635 | { | |
2636 | if (strlen (optable[i].in) == 3 | |
2637 | && memcmp (optable[i].in, declp->b + 2, 3) == 0) | |
2638 | { | |
2639 | string_clear (declp); | |
2640 | string_append (declp, "operator"); | |
2641 | string_append (declp, optable[i].out); | |
2642 | break; | |
2643 | } | |
2644 | } | |
2645 | } | |
2646 | } | |
2647 | } | |
2648 | } | |
2649 | ||
2650 | /* a mini string-handling package */ | |
2651 | ||
2652 | static void | |
2653 | string_need (s, n) | |
2654 | string *s; | |
2655 | int n; | |
2656 | { | |
2657 | int tem; | |
2658 | ||
2659 | if (s->b == NULL) | |
2660 | { | |
2661 | if (n < 32) | |
2662 | { | |
2663 | n = 32; | |
2664 | } | |
2665 | s->p = s->b = xmalloc (n); | |
2666 | s->e = s->b + n; | |
2667 | } | |
2668 | else if (s->e - s->p < n) | |
2669 | { | |
2670 | tem = s->p - s->b; | |
2671 | n += tem; | |
2672 | n *= 2; | |
2673 | s->b = xrealloc (s->b, n); | |
2674 | s->p = s->b + tem; | |
2675 | s->e = s->b + n; | |
2676 | } | |
2677 | } | |
2678 | ||
2679 | static void | |
2680 | string_delete (s) | |
2681 | string *s; | |
2682 | { | |
2683 | if (s->b != NULL) | |
2684 | { | |
2685 | free (s->b); | |
2686 | s->b = s->e = s->p = NULL; | |
2687 | } | |
2688 | } | |
2689 | ||
2690 | static void | |
2691 | string_init (s) | |
2692 | string *s; | |
2693 | { | |
2694 | s->b = s->p = s->e = NULL; | |
2695 | } | |
2696 | ||
2697 | static void | |
2698 | string_clear (s) | |
2699 | string *s; | |
2700 | { | |
2701 | s->p = s->b; | |
2702 | } | |
2703 | ||
2704 | #if 0 | |
2705 | ||
2706 | static int | |
2707 | string_empty (s) | |
2708 | string *s; | |
2709 | { | |
2710 | return (s->b == s->p); | |
2711 | } | |
2712 | ||
2713 | #endif | |
2714 | ||
2715 | static void | |
2716 | string_append (p, s) | |
2717 | string *p; | |
2718 | const char *s; | |
2719 | { | |
2720 | int n; | |
2721 | if (s == NULL || *s == '\0') | |
2722 | return; | |
2723 | n = strlen (s); | |
2724 | string_need (p, n); | |
2725 | memcpy (p->p, s, n); | |
2726 | p->p += n; | |
2727 | } | |
2728 | ||
2729 | static void | |
2730 | string_appends (p, s) | |
2731 | string *p, *s; | |
2732 | { | |
2733 | int n; | |
2734 | ||
2735 | if (s->b != s->p) | |
2736 | { | |
2737 | n = s->p - s->b; | |
2738 | string_need (p, n); | |
2739 | memcpy (p->p, s->b, n); | |
2740 | p->p += n; | |
2741 | } | |
2742 | } | |
2743 | ||
2744 | static void | |
2745 | string_appendn (p, s, n) | |
2746 | string *p; | |
2747 | const char *s; | |
2748 | int n; | |
2749 | { | |
2750 | if (n != 0) | |
2751 | { | |
2752 | string_need (p, n); | |
2753 | memcpy (p->p, s, n); | |
2754 | p->p += n; | |
2755 | } | |
2756 | } | |
2757 | ||
2758 | static void | |
2759 | string_prepend (p, s) | |
2760 | string *p; | |
2761 | const char *s; | |
2762 | { | |
2763 | if (s != NULL && *s != '\0') | |
2764 | { | |
2765 | string_prependn (p, s, strlen (s)); | |
2766 | } | |
2767 | } | |
2768 | ||
2769 | static void | |
2770 | string_prepends (p, s) | |
2771 | string *p, *s; | |
2772 | { | |
2773 | if (s->b != s->p) | |
2774 | { | |
2775 | string_prependn (p, s->b, s->p - s->b); | |
2776 | } | |
2777 | } | |
2778 | ||
2779 | static void | |
2780 | string_prependn (p, s, n) | |
2781 | string *p; | |
2782 | const char *s; | |
2783 | int n; | |
2784 | { | |
2785 | char *q; | |
2786 | ||
2787 | if (n != 0) | |
2788 | { | |
2789 | string_need (p, n); | |
2790 | for (q = p->p - 1; q >= p->b; q--) | |
2791 | { | |
2792 | q[n] = q[0]; | |
2793 | } | |
2794 | memcpy (p->b, s, n); | |
2795 | p->p += n; | |
2796 | } | |
2797 | } | |
2798 | ||
2799 | /* To generate a standalone demangler program for testing purposes, | |
2800 | just compile and link this file with -DMAIN and libiberty.a. When | |
2801 | run, it demangles each command line arg, or each stdin string, and | |
2802 | prints the result on stdout. */ | |
2803 | ||
2804 | #ifdef MAIN | |
2805 | ||
2806 | static void | |
2807 | demangle_it (mangled_name) | |
2808 | char *mangled_name; | |
2809 | { | |
2810 | char *result; | |
2811 | ||
2812 | result = cplus_demangle (mangled_name, DMGL_PARAMS | DMGL_ANSI); | |
2813 | if (result == NULL) | |
2814 | { | |
2815 | printf ("%s\n", mangled_name); | |
2816 | } | |
2817 | else | |
2818 | { | |
2819 | printf ("%s\n", result); | |
2820 | free (result); | |
2821 | } | |
2822 | } | |
2823 | ||
2824 | #include "getopt.h" | |
2825 | ||
2826 | static char *program_name; | |
2827 | static char *program_version = VERSION; | |
2828 | ||
2829 | static void | |
2830 | usage (stream, status) | |
2831 | FILE *stream; | |
2832 | int status; | |
2833 | { | |
2834 | fprintf (stream, "\ | |
2835 | Usage: %s [-_] [-n] [-s {gnu,lucid,arm}] [--strip-underscores]\n\ | |
2836 | [--no-strip-underscores] [--format={gnu,lucid,arm}]\n\ | |
2837 | [--help] [--version] [arg...]\n", | |
2838 | program_name); | |
2839 | exit (status); | |
2840 | } | |
2841 | ||
2842 | #define MBUF_SIZE 512 | |
2843 | char mbuffer[MBUF_SIZE]; | |
2844 | ||
2845 | /* Defined in the automatically-generated underscore.c. */ | |
2846 | extern int prepends_underscore; | |
2847 | ||
2848 | int strip_underscore = 0; | |
2849 | ||
2850 | static struct option long_options[] = { | |
2851 | {"strip-underscores", no_argument, 0, '_'}, | |
2852 | {"format", required_argument, 0, 's'}, | |
2853 | {"help", no_argument, 0, 'h'}, | |
2854 | {"no-strip-underscores", no_argument, 0, 'n'}, | |
2855 | {"version", no_argument, 0, 'v'}, | |
2856 | {0, no_argument, 0, 0} | |
2857 | }; | |
2858 | ||
2859 | int | |
2860 | main (argc, argv) | |
2861 | int argc; | |
2862 | char **argv; | |
2863 | { | |
2864 | char *result; | |
2865 | int c; | |
2866 | ||
2867 | program_name = argv[0]; | |
2868 | ||
2869 | strip_underscore = prepends_underscore; | |
2870 | ||
2871 | while ((c = getopt_long (argc, argv, "_ns:", long_options, (int *) 0)) != EOF) | |
2872 | { | |
2873 | switch (c) | |
2874 | { | |
2875 | case '?': | |
2876 | usage (stderr, 1); | |
2877 | break; | |
2878 | case 'h': | |
2879 | usage (stdout, 0); | |
2880 | case 'n': | |
2881 | strip_underscore = 0; | |
2882 | break; | |
2883 | case 'v': | |
2884 | printf ("GNU %s version %s\n", program_name, program_version); | |
2885 | exit (0); | |
2886 | case '_': | |
2887 | strip_underscore = 1; | |
2888 | break; | |
2889 | case 's': | |
2890 | if (strcmp (optarg, "gnu") == 0) | |
2891 | { | |
2892 | current_demangling_style = gnu_demangling; | |
2893 | } | |
2894 | else if (strcmp (optarg, "lucid") == 0) | |
2895 | { | |
2896 | current_demangling_style = lucid_demangling; | |
2897 | } | |
2898 | else if (strcmp (optarg, "arm") == 0) | |
2899 | { | |
2900 | current_demangling_style = arm_demangling; | |
2901 | } | |
2902 | else | |
2903 | { | |
2904 | fprintf (stderr, "%s: unknown demangling style `%s'\n", | |
2905 | program_name, optarg); | |
2906 | exit (1); | |
2907 | } | |
2908 | break; | |
2909 | } | |
2910 | } | |
2911 | ||
2912 | if (optind < argc) | |
2913 | { | |
2914 | for ( ; optind < argc; optind++) | |
2915 | { | |
2916 | demangle_it (argv[optind]); | |
2917 | } | |
2918 | } | |
2919 | else | |
2920 | { | |
2921 | for (;;) | |
2922 | { | |
2923 | int i = 0; | |
2924 | c = getchar (); | |
2925 | /* Try to read a label. */ | |
2926 | while (c != EOF && (isalnum(c) || c == '_' || c == '$' || c == '.')) | |
2927 | { | |
2928 | if (i >= MBUF_SIZE-1) | |
2929 | break; | |
2930 | mbuffer[i++] = c; | |
2931 | c = getchar (); | |
2932 | } | |
2933 | if (i > 0) | |
2934 | { | |
2935 | int skip_first = 0; | |
2936 | ||
2937 | if (mbuffer[0] == '.') | |
2938 | ++skip_first; | |
2939 | if (strip_underscore && mbuffer[skip_first] == '_') | |
2940 | ++skip_first; | |
2941 | ||
2942 | if (skip_first > i) | |
2943 | skip_first = i; | |
2944 | ||
2945 | mbuffer[i] = 0; | |
2946 | ||
2947 | result = cplus_demangle (mbuffer + skip_first, | |
2948 | DMGL_PARAMS | DMGL_ANSI); | |
2949 | if (result) | |
2950 | { | |
2951 | if (mbuffer[0] == '.') | |
2952 | putc ('.', stdout); | |
2953 | fputs (result, stdout); | |
2954 | free (result); | |
2955 | } | |
2956 | else | |
2957 | fputs (mbuffer, stdout); | |
2958 | ||
2959 | fflush (stdout); | |
2960 | } | |
2961 | if (c == EOF) | |
2962 | break; | |
2963 | putchar (c); | |
2964 | } | |
2965 | } | |
2966 | ||
2967 | exit (0); | |
2968 | } | |
2969 | ||
2970 | static void | |
2971 | fatal (str) | |
2972 | char *str; | |
2973 | { | |
2974 | fprintf (stderr, "%s: %s\n", program_name, str); | |
2975 | exit (1); | |
2976 | } | |
2977 | ||
2978 | char * malloc (); | |
2979 | char * realloc (); | |
2980 | ||
2981 | char * | |
2982 | xmalloc (size) | |
2983 | unsigned size; | |
2984 | { | |
2985 | register char *value = (char *) malloc (size); | |
2986 | if (value == 0) | |
2987 | fatal ("virtual memory exhausted"); | |
2988 | return value; | |
2989 | } | |
2990 | ||
2991 | char * | |
2992 | xrealloc (ptr, size) | |
2993 | char *ptr; | |
2994 | unsigned size; | |
2995 | { | |
2996 | register char *value = (char *) realloc (ptr, size); | |
2997 | if (value == 0) | |
2998 | fatal ("virtual memory exhausted"); | |
2999 | return value; | |
3000 | } | |
3001 | #endif /* main */ |