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dd3b648e | 1 | /* Demangler for GNU C++ |
7d9884b9 | 2 | Copyright 1989, 1991 Free Software Foundation, Inc. |
f9b5584c FF |
3 | Written by James Clark (jjc@jclark.uucp) |
4 | Rewritten by Fred Fish (fnf@cygnus.com) for ARM and Lucid demangling | |
dd3b648e | 5 | |
572acbbe MT |
6 | This program is free software; you can redistribute it and/or modify |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2, or (at your option) | |
9 | any later version. | |
99a7de40 | 10 | |
572acbbe MT |
11 | This program is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
99a7de40 | 15 | |
572acbbe MT |
16 | You should have received a copy of the GNU General Public License |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
dd3b648e | 19 | |
f9b5584c | 20 | /* This is for g++ 1.95.03 (November 13 version). */ |
dd3b648e | 21 | |
8f793aa5 | 22 | /* This file exports two functions; cplus_mangle_opname and cplus_demangle. |
dd3b648e RP |
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 | ||
e1ce8aa5 JK |
28 | /* GDB-specific, FIXME. */ |
29 | #include "defs.h" | |
8f793aa5 | 30 | #include "demangle.h" |
e1ce8aa5 | 31 | |
d747e0af | 32 | #include <ctype.h> |
dd3b648e | 33 | #include <string.h> |
dd3b648e | 34 | |
3dc755fb FF |
35 | /* In order to allow a single demangler executable to demangle strings |
36 | using various common values of CPLUS_MARKER, as well as any specific | |
37 | one set at compile time, we maintain a string containing all the | |
38 | commonly used ones, and check to see if the marker we are looking for | |
39 | is in that string. CPLUS_MARKER is usually '$' on systems where the | |
40 | assembler can deal with that. Where the assembler can't, it's usually | |
41 | '.' (but on many systems '.' is used for other things). We put the | |
42 | current defined CPLUS_MARKER first (which defaults to '$'), followed | |
43 | by the next most common value, followed by an explicit '$' in case | |
44 | the value of CPLUS_MARKER is not '$'. | |
45 | ||
46 | We could avoid this if we could just get g++ to tell us what the actual | |
47 | cplus marker character is as part of the debug information, perhaps by | |
48 | ensuring that it is the character that terminates the gcc<n>_compiled | |
49 | marker symbol (FIXME). */ | |
f9b5584c | 50 | |
8ffd75c8 JG |
51 | #if !defined (CPLUS_MARKER) |
52 | #define CPLUS_MARKER '$' | |
53 | #endif | |
54 | ||
3dc755fb FF |
55 | static const char cplus_markers[] = { CPLUS_MARKER, '.', '$', '\0' }; |
56 | ||
dd3b648e RP |
57 | #ifndef __STDC__ |
58 | #define const | |
59 | #endif | |
60 | ||
f9b5584c FF |
61 | /* Stuff that is shared between sub-routines. |
62 | * Using a shared structure allows cplus_demangle to be reentrant. */ | |
f536aa39 | 63 | |
f9b5584c FF |
64 | struct work_stuff |
65 | { | |
8f793aa5 | 66 | int options; |
f536aa39 PB |
67 | char **typevec; |
68 | int ntypes; | |
69 | int typevec_size; | |
f9b5584c FF |
70 | int constructor; |
71 | int destructor; | |
72 | int static_type; /* A static member function */ | |
73 | int const_type; /* A const member function */ | |
f536aa39 | 74 | }; |
dd3b648e | 75 | |
f9b5584c FF |
76 | #define PRINT_ANSI_QUALIFIERS (work -> options & DMGL_ANSI) |
77 | #define PRINT_ARG_TYPES (work -> options & DMGL_PARAMS) | |
78 | ||
79 | static const struct optable | |
80 | { | |
dd3b648e RP |
81 | const char *in; |
82 | const char *out; | |
8f793aa5 | 83 | int flags; |
dd3b648e | 84 | } optable[] = { |
8f793aa5 FF |
85 | "nw", " new", DMGL_ANSI, /* new (1.92, ansi) */ |
86 | "dl", " delete", DMGL_ANSI, /* new (1.92, ansi) */ | |
87 | "new", " new", 0, /* old (1.91, and 1.x) */ | |
88 | "delete", " delete", 0, /* old (1.91, and 1.x) */ | |
89 | "as", "=", DMGL_ANSI, /* ansi */ | |
90 | "ne", "!=", DMGL_ANSI, /* old, ansi */ | |
91 | "eq", "==", DMGL_ANSI, /* old, ansi */ | |
92 | "ge", ">=", DMGL_ANSI, /* old, ansi */ | |
93 | "gt", ">", DMGL_ANSI, /* old, ansi */ | |
94 | "le", "<=", DMGL_ANSI, /* old, ansi */ | |
95 | "lt", "<", DMGL_ANSI, /* old, ansi */ | |
96 | "plus", "+", 0, /* old */ | |
97 | "pl", "+", DMGL_ANSI, /* ansi */ | |
98 | "apl", "+=", DMGL_ANSI, /* ansi */ | |
99 | "minus", "-", 0, /* old */ | |
100 | "mi", "-", DMGL_ANSI, /* ansi */ | |
101 | "ami", "-=", DMGL_ANSI, /* ansi */ | |
102 | "mult", "*", 0, /* old */ | |
103 | "ml", "*", DMGL_ANSI, /* ansi */ | |
2dbde378 FF |
104 | "amu", "*=", DMGL_ANSI, /* ansi (ARM/Lucid) */ |
105 | "aml", "*=", DMGL_ANSI, /* ansi (GNU/g++) */ | |
8f793aa5 FF |
106 | "convert", "+", 0, /* old (unary +) */ |
107 | "negate", "-", 0, /* old (unary -) */ | |
108 | "trunc_mod", "%", 0, /* old */ | |
109 | "md", "%", DMGL_ANSI, /* ansi */ | |
110 | "amd", "%=", DMGL_ANSI, /* ansi */ | |
111 | "trunc_div", "/", 0, /* old */ | |
112 | "dv", "/", DMGL_ANSI, /* ansi */ | |
113 | "adv", "/=", DMGL_ANSI, /* ansi */ | |
114 | "truth_andif", "&&", 0, /* old */ | |
115 | "aa", "&&", DMGL_ANSI, /* ansi */ | |
116 | "truth_orif", "||", 0, /* old */ | |
117 | "oo", "||", DMGL_ANSI, /* ansi */ | |
118 | "truth_not", "!", 0, /* old */ | |
119 | "nt", "!", DMGL_ANSI, /* ansi */ | |
120 | "postincrement","++", 0, /* old */ | |
121 | "pp", "++", DMGL_ANSI, /* ansi */ | |
122 | "postdecrement","--", 0, /* old */ | |
123 | "mm", "--", DMGL_ANSI, /* ansi */ | |
124 | "bit_ior", "|", 0, /* old */ | |
125 | "or", "|", DMGL_ANSI, /* ansi */ | |
126 | "aor", "|=", DMGL_ANSI, /* ansi */ | |
127 | "bit_xor", "^", 0, /* old */ | |
128 | "er", "^", DMGL_ANSI, /* ansi */ | |
129 | "aer", "^=", DMGL_ANSI, /* ansi */ | |
130 | "bit_and", "&", 0, /* old */ | |
131 | "ad", "&", DMGL_ANSI, /* ansi */ | |
132 | "aad", "&=", DMGL_ANSI, /* ansi */ | |
133 | "bit_not", "~", 0, /* old */ | |
134 | "co", "~", DMGL_ANSI, /* ansi */ | |
135 | "call", "()", 0, /* old */ | |
136 | "cl", "()", DMGL_ANSI, /* ansi */ | |
137 | "alshift", "<<", 0, /* old */ | |
138 | "ls", "<<", DMGL_ANSI, /* ansi */ | |
139 | "als", "<<=", DMGL_ANSI, /* ansi */ | |
140 | "arshift", ">>", 0, /* old */ | |
141 | "rs", ">>", DMGL_ANSI, /* ansi */ | |
142 | "ars", ">>=", DMGL_ANSI, /* ansi */ | |
143 | "component", "->", 0, /* old */ | |
f9b5584c | 144 | "pt", "->", DMGL_ANSI, /* ansi; Lucid C++ form */ |
2dbde378 | 145 | "rf", "->", DMGL_ANSI, /* ansi; ARM/GNU form */ |
8f793aa5 FF |
146 | "indirect", "*", 0, /* old */ |
147 | "method_call", "->()", 0, /* old */ | |
148 | "addr", "&", 0, /* old (unary &) */ | |
149 | "array", "[]", 0, /* old */ | |
150 | "vc", "[]", DMGL_ANSI, /* ansi */ | |
151 | "compound", ", ", 0, /* old */ | |
152 | "cm", ", ", DMGL_ANSI, /* ansi */ | |
153 | "cond", "?:", 0, /* old */ | |
154 | "cn", "?:", DMGL_ANSI, /* psuedo-ansi */ | |
155 | "max", ">?", 0, /* old */ | |
156 | "mx", ">?", DMGL_ANSI, /* psuedo-ansi */ | |
157 | "min", "<?", 0, /* old */ | |
158 | "mn", "<?", DMGL_ANSI, /* psuedo-ansi */ | |
159 | "nop", "", 0, /* old (for operator=) */ | |
160 | "rm", "->*", DMGL_ANSI, /* ansi */ | |
dd3b648e RP |
161 | }; |
162 | ||
dd3b648e | 163 | |
f9b5584c FF |
164 | typedef struct string /* Beware: these aren't required to be */ |
165 | { /* '\0' terminated. */ | |
dd3b648e RP |
166 | char *b; /* pointer to start of string */ |
167 | char *p; /* pointer after last character */ | |
168 | char *e; /* pointer after end of allocated space */ | |
169 | } string; | |
170 | ||
f9b5584c FF |
171 | #define STRING_EMPTY(str) ((str) -> b == (str) -> p) |
172 | #define PREPEND_BLANK(str) {if (!STRING_EMPTY(str)) \ | |
173 | string_prepend(str, " ");} | |
174 | #define APPEND_BLANK(str) {if (!STRING_EMPTY(str)) \ | |
175 | string_append(str, " ");} | |
176 | ||
3dc755fb FF |
177 | #define ARM_VTABLE_STRING "__vtbl__" /* Lucid/cfront virtual table prefix */ |
178 | #define ARM_VTABLE_STRLEN 8 /* strlen (ARM_VTABLE_STRING) */ | |
179 | ||
f9b5584c FF |
180 | /* Prototypes for local functions */ |
181 | ||
182 | static char * | |
183 | mop_up PARAMS ((string *, struct work_stuff *, int)); | |
184 | ||
51b57ded | 185 | #if 0 |
f9b5584c FF |
186 | static int |
187 | demangle_method_args PARAMS ((string *, const char **, struct work_stuff *)); | |
51b57ded | 188 | #endif |
f9b5584c FF |
189 | |
190 | static int | |
191 | demangle_template PARAMS ((string *declp, const char **, struct work_stuff *)); | |
192 | ||
193 | static int | |
194 | demangle_qualified PARAMS ((string *, const char **, struct work_stuff *)); | |
195 | ||
196 | static int | |
197 | demangle_class PARAMS ((string *, const char **, struct work_stuff *)); | |
198 | ||
199 | static int | |
200 | demangle_fund_type PARAMS ((const char **, string *, struct work_stuff *)); | |
201 | ||
202 | static int | |
203 | demangle_signature PARAMS ((string *, const char **, struct work_stuff *)); | |
204 | ||
205 | static int | |
206 | demangle_prefix PARAMS ((string *, const char **, struct work_stuff *)); | |
207 | ||
208 | static int | |
209 | gnu_special PARAMS ((string *, const char **, struct work_stuff *)); | |
210 | ||
3dc755fb FF |
211 | static int |
212 | cfront_special PARAMS ((string *, const char **, struct work_stuff *)); | |
213 | ||
1ab3bf1b JG |
214 | static void |
215 | string_need PARAMS ((string *, int)); | |
216 | ||
217 | static void | |
218 | string_delete PARAMS ((string *)); | |
219 | ||
220 | static void | |
221 | string_init PARAMS ((string *)); | |
222 | ||
223 | static void | |
224 | string_clear PARAMS ((string *)); | |
225 | ||
51b57ded | 226 | #if 0 |
1ab3bf1b JG |
227 | static int |
228 | string_empty PARAMS ((string *)); | |
51b57ded | 229 | #endif |
1ab3bf1b JG |
230 | |
231 | static void | |
232 | string_append PARAMS ((string *, const char *)); | |
233 | ||
234 | static void | |
235 | string_appends PARAMS ((string *, string *)); | |
236 | ||
237 | static void | |
238 | string_appendn PARAMS ((string *, const char *, int)); | |
239 | ||
240 | static void | |
241 | string_prepend PARAMS ((string *, const char *)); | |
242 | ||
243 | static void | |
244 | string_prependn PARAMS ((string *, const char *, int)); | |
245 | ||
246 | static int | |
247 | get_count PARAMS ((const char **, int *)); | |
248 | ||
1c92ca6f FF |
249 | static int |
250 | consume_count PARAMS ((const char **)); | |
251 | ||
1ab3bf1b | 252 | static int |
f9b5584c | 253 | demangle_args PARAMS ((string *, const char **, struct work_stuff *)); |
1ab3bf1b JG |
254 | |
255 | static int | |
f536aa39 | 256 | do_type PARAMS ((const char **, string *, struct work_stuff *)); |
1ab3bf1b JG |
257 | |
258 | static int | |
f536aa39 | 259 | do_arg PARAMS ((const char **, string *, struct work_stuff*)); |
1ab3bf1b JG |
260 | |
261 | static void | |
f9b5584c FF |
262 | demangle_function_name PARAMS ((string *, const char **, struct work_stuff*, |
263 | const char *)); | |
1ab3bf1b JG |
264 | |
265 | static void | |
f536aa39 | 266 | remember_type PARAMS ((const char *, int, struct work_stuff *)); |
1ab3bf1b | 267 | |
3dc755fb FF |
268 | static void |
269 | forget_types PARAMS ((struct work_stuff *)); | |
270 | ||
dd3b648e | 271 | #if 0 |
1ab3bf1b JG |
272 | static void |
273 | string_prepends PARAMS ((string *, string *)); | |
dd3b648e RP |
274 | #endif |
275 | ||
1c92ca6f FF |
276 | /* Translate count to integer, consuming tokens in the process. |
277 | Conversion terminates on the first non-digit character. */ | |
278 | ||
279 | static int | |
280 | consume_count (type) | |
281 | const char **type; | |
282 | { | |
283 | int count = 0; | |
284 | ||
285 | do | |
286 | { | |
287 | count *= 10; | |
288 | count += **type - '0'; | |
289 | (*type)++; | |
290 | } while (isdigit (**type)); | |
291 | return (count); | |
292 | } | |
1ab3bf1b | 293 | |
55838914 | 294 | /* Takes operator name as e.g. "++" and returns mangled |
572acbbe MT |
295 | operator name (e.g. "postincrement_expr"), or NULL if not found. |
296 | ||
8f793aa5 FF |
297 | If OPTIONS & DMGL_ANSI == 1, return the ANSI name; |
298 | if OPTIONS & DMGL_ANSI == 0, return the old GNU name. */ | |
299 | ||
55838914 | 300 | char * |
8f793aa5 | 301 | cplus_mangle_opname (opname, options) |
55838914 | 302 | char *opname; |
8f793aa5 | 303 | int options; |
55838914 | 304 | { |
f9b5584c FF |
305 | int i; |
306 | int len; | |
55838914 | 307 | |
f9b5584c | 308 | len = strlen (opname); |
8f793aa5 | 309 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) |
55838914 JK |
310 | { |
311 | if (strlen (optable[i].out) == len | |
8f793aa5 | 312 | && (options & DMGL_ANSI) == (optable[i].flags & DMGL_ANSI) |
55838914 | 313 | && memcmp (optable[i].out, opname, len) == 0) |
f9b5584c | 314 | return ((char *)optable[i].in); |
55838914 | 315 | } |
f9b5584c | 316 | return (0); |
55838914 JK |
317 | } |
318 | ||
8f793aa5 FF |
319 | /* char *cplus_demangle (const char *name, int options) |
320 | ||
321 | If NAME is a mangled function name produced by GNU C++, then | |
322 | a pointer to a malloced string giving a C++ representation | |
323 | of the name will be returned; otherwise NULL will be returned. | |
324 | It is the caller's responsibility to free the string which | |
325 | is returned. | |
326 | ||
327 | The OPTIONS arg may contain one or more of the following bits: | |
328 | ||
329 | DMGL_ANSI ANSI qualifiers such as `const' and `void' are | |
330 | included. | |
331 | DMGL_PARAMS Function parameters are included. | |
332 | ||
333 | For example, | |
334 | ||
335 | cplus_demangle ("foo__1Ai", DMGL_PARAMS) => "A::foo(int)" | |
336 | cplus_demangle ("foo__1Ai", DMGL_PARAMS | DMGL_ANSI) => "A::foo(int)" | |
337 | cplus_demangle ("foo__1Ai", 0) => "A::foo" | |
338 | ||
339 | cplus_demangle ("foo__1Afe", DMGL_PARAMS) => "A::foo(float,...)" | |
340 | cplus_demangle ("foo__1Afe", DMGL_PARAMS | DMGL_ANSI)=> "A::foo(float,...)" | |
341 | cplus_demangle ("foo__1Afe", 0) => "A::foo" | |
f9b5584c FF |
342 | |
343 | Note that any leading underscores, or other such characters prepended by | |
344 | the compilation system, are presumed to have already been stripped from | |
345 | TYPE. */ | |
8f793aa5 | 346 | |
dd3b648e | 347 | char * |
f9b5584c FF |
348 | cplus_demangle (mangled, options) |
349 | const char *mangled; | |
8f793aa5 | 350 | int options; |
dd3b648e RP |
351 | { |
352 | string decl; | |
dd3b648e | 353 | int success = 0; |
f536aa39 | 354 | struct work_stuff work[1]; |
f9b5584c FF |
355 | char *demangled = NULL; |
356 | ||
357 | if ((mangled != NULL) && (*mangled != '\0')) | |
358 | { | |
4ed3a9ea | 359 | memset ((char *) work, 0, sizeof (work)); |
f9b5584c FF |
360 | work -> options = options; |
361 | ||
362 | string_init (&decl); | |
3dc755fb FF |
363 | |
364 | /* First check to see if gnu style demangling is active and if the | |
365 | string to be demangled contains a CPLUS_MARKER. If so, attempt to | |
366 | recognize one of the gnu special forms rather than looking for a | |
367 | standard prefix. In particular, don't worry about whether there | |
368 | is a "__" string in the mangled string. Consider "_$_5__foo" for | |
369 | example. */ | |
370 | ||
371 | if ((AUTO_DEMANGLING || GNU_DEMANGLING) | |
372 | && (strpbrk (mangled, cplus_markers)) != NULL) | |
373 | { | |
374 | success = gnu_special (&decl, &mangled, work); | |
375 | } | |
376 | else | |
377 | { | |
378 | success = demangle_prefix (&decl, &mangled, work); | |
379 | } | |
f9b5584c FF |
380 | if (success && (*mangled != '\0')) |
381 | { | |
382 | success = demangle_signature (&decl, &mangled, work); | |
383 | } | |
384 | demangled = mop_up (&decl, work, success); | |
385 | } | |
386 | return (demangled); | |
387 | } | |
388 | ||
389 | static char * | |
390 | mop_up (declp, work, success) | |
391 | string *declp; | |
392 | struct work_stuff *work; | |
393 | int success; | |
394 | { | |
395 | int i; | |
396 | char *demangled = NULL; | |
397 | ||
398 | /* Discard the remembered types, if any. */ | |
399 | ||
3dc755fb | 400 | forget_types (work); |
f9b5584c FF |
401 | if (work -> typevec != NULL) |
402 | { | |
403 | free ((char *) work -> typevec); | |
404 | } | |
405 | ||
406 | /* If demangling was successful, ensure that the demangled string is null | |
407 | terminated and return it. Otherwise, free the demangling decl. */ | |
408 | ||
409 | if (!success) | |
410 | { | |
411 | string_delete (declp); | |
412 | } | |
413 | else | |
414 | { | |
415 | string_appendn (declp, "", 1); | |
416 | demangled = declp -> b; | |
417 | } | |
418 | return (demangled); | |
419 | } | |
420 | ||
421 | /* | |
422 | ||
423 | LOCAL FUNCTION | |
424 | ||
425 | demangle_signature -- demangle the signature part of a mangled name | |
426 | ||
427 | SYNOPSIS | |
428 | ||
429 | static int | |
430 | demangle_signature (string *declp, const char **mangled, | |
431 | struct work_stuff *work); | |
432 | ||
433 | DESCRIPTION | |
434 | ||
435 | Consume and demangle the signature portion of the mangled name. | |
436 | ||
437 | DECLP is the string where demangled output is being built. At | |
438 | entry it contains the demangled root name from the mangled name | |
439 | prefix. I.E. either a demangled operator name or the root function | |
440 | name. In some special cases, it may contain nothing. | |
441 | ||
442 | *MANGLED points to the current unconsumed location in the mangled | |
443 | name. As tokens are consumed and demangling is performed, the | |
444 | pointer is updated to continuously point at the next token to | |
445 | be consumed. | |
446 | ||
447 | Demangling GNU style mangled names is nasty because there is no | |
448 | explicit token that marks the start of the outermost function | |
449 | argument list. | |
450 | */ | |
451 | ||
452 | static int | |
453 | demangle_signature (declp, mangled, work) | |
454 | string *declp; | |
455 | const char **mangled; | |
456 | struct work_stuff *work; | |
457 | { | |
458 | int success = 1; | |
459 | int func_done = 0; | |
f9b5584c | 460 | int expect_func = 0; |
dd3b648e RP |
461 | #ifndef LONGERNAMES |
462 | const char *premangle; | |
463 | #endif | |
464 | ||
f9b5584c FF |
465 | #ifndef LONGERNAMES |
466 | premangle = *mangled; | |
dd3b648e | 467 | #endif |
f536aa39 | 468 | |
f9b5584c | 469 | while (success && (**mangled != '\0')) |
dd3b648e | 470 | { |
f9b5584c | 471 | switch (**mangled) |
dd3b648e | 472 | { |
f9b5584c FF |
473 | case 'Q': |
474 | success = demangle_qualified (declp, mangled, work); | |
3dc755fb | 475 | if (AUTO_DEMANGLING || GNU_DEMANGLING) |
2dbde378 FF |
476 | { |
477 | expect_func = 1; | |
478 | } | |
f9b5584c FF |
479 | break; |
480 | ||
481 | case 'S': | |
482 | /* Static member function */ | |
483 | (*mangled)++; | |
484 | work -> static_type = 1; | |
485 | break; | |
486 | ||
487 | case 'C': | |
488 | /* a const member function */ | |
489 | (*mangled)++; | |
490 | work -> const_type = 1; | |
491 | break; | |
492 | ||
493 | case '0': case '1': case '2': case '3': case '4': | |
494 | case '5': case '6': case '7': case '8': case '9': | |
495 | success = demangle_class (declp, mangled, work); | |
496 | #ifndef LONGERNAMES | |
497 | if (success) | |
498 | { | |
499 | remember_type (premangle, *mangled - premangle, work); | |
500 | } | |
501 | #endif | |
3dc755fb | 502 | if (AUTO_DEMANGLING || GNU_DEMANGLING) |
2dbde378 FF |
503 | { |
504 | expect_func = 1; | |
505 | } | |
f9b5584c FF |
506 | break; |
507 | ||
508 | case 'F': | |
509 | /* Function */ | |
510 | /* ARM style demangling includes a specific 'F' character after | |
511 | the class name. For GNU style, it is just implied. So we can | |
512 | safely just consume any 'F' at this point and be compatible | |
513 | with either style. */ | |
3dc755fb | 514 | |
f9b5584c FF |
515 | func_done = 1; |
516 | (*mangled)++; | |
3dc755fb FF |
517 | |
518 | /* For lucid/cfront style we have to forget any types we might | |
519 | have remembered up to this point, since they were not argument | |
520 | types. GNU style considers all types seen as available for | |
521 | back references. See comment in demangle_args() */ | |
522 | ||
523 | if (LUCID_DEMANGLING || CFRONT_DEMANGLING) | |
524 | { | |
525 | forget_types (work); | |
526 | } | |
f9b5584c FF |
527 | success = demangle_args (declp, mangled, work); |
528 | break; | |
529 | ||
530 | case 't': | |
531 | /* Template */ | |
532 | success = demangle_template (declp, mangled, work); | |
533 | break; | |
534 | ||
7fd31a84 FF |
535 | case '_': |
536 | /* At the outermost level, we cannot have a return type specified, | |
537 | so if we run into another '_' at this point we are dealing with | |
538 | a mangled name that is either bogus, or has been mangled by | |
539 | some algorithm we don't know how to deal with. So just | |
540 | reject the entire demangling. */ | |
541 | success = 0; | |
542 | break; | |
543 | ||
f9b5584c | 544 | default: |
3dc755fb | 545 | if (AUTO_DEMANGLING || GNU_DEMANGLING) |
2dbde378 FF |
546 | { |
547 | /* Assume we have stumbled onto the first outermost function | |
548 | argument token, and start processing args. */ | |
549 | func_done = 1; | |
550 | success = demangle_args (declp, mangled, work); | |
551 | } | |
552 | else | |
553 | { | |
554 | /* Non-GNU demanglers use a specific token to mark the start | |
555 | of the outermost function argument tokens. Typically 'F', | |
556 | for ARM-demangling, for example. So if we find something | |
557 | we are not prepared for, it must be an error. */ | |
558 | success = 0; | |
559 | } | |
f9b5584c | 560 | break; |
dd3b648e | 561 | } |
3dc755fb | 562 | if (AUTO_DEMANGLING || GNU_DEMANGLING) |
dd3b648e | 563 | { |
2dbde378 FF |
564 | if (success && expect_func) |
565 | { | |
566 | func_done = 1; | |
567 | success = demangle_args (declp, mangled, work); | |
568 | } | |
dd3b648e | 569 | } |
f9b5584c FF |
570 | } |
571 | if (success && !func_done) | |
572 | { | |
3dc755fb | 573 | if (AUTO_DEMANGLING || GNU_DEMANGLING) |
2dbde378 FF |
574 | { |
575 | /* With GNU style demangling, bar__3foo is 'foo::bar(void)', and | |
576 | bar__3fooi is 'foo::bar(int)'. We get here when we find the | |
577 | first case, and need to ensure that the '(void)' gets added to | |
578 | the current declp. Note that with ARM, the first case | |
579 | represents the name of a static data member 'foo::bar', | |
580 | which is in the current declp, so we leave it alone. */ | |
581 | success = demangle_args (declp, mangled, work); | |
582 | } | |
dd3b648e | 583 | } |
f9b5584c FF |
584 | if (success && work -> static_type && PRINT_ARG_TYPES) |
585 | { | |
586 | string_append (declp, " static"); | |
587 | } | |
588 | if (success && work -> const_type && PRINT_ARG_TYPES) | |
589 | { | |
590 | string_append (declp, " const"); | |
591 | } | |
592 | return (success); | |
593 | } | |
dd3b648e | 594 | |
f9b5584c | 595 | #if 0 |
dd3b648e | 596 | |
f9b5584c FF |
597 | static int |
598 | demangle_method_args (declp, mangled, work) | |
599 | string *declp; | |
600 | const char **mangled; | |
601 | struct work_stuff *work; | |
602 | { | |
603 | int success = 0; | |
604 | ||
605 | if (work -> static_type) | |
4c53d9ca | 606 | { |
f9b5584c FF |
607 | string_append (declp, *mangled + 1); |
608 | *mangled += strlen (*mangled); | |
609 | success = 1; | |
4c53d9ca | 610 | } |
f9b5584c | 611 | else |
dd3b648e | 612 | { |
f9b5584c FF |
613 | success = demangle_args (declp, mangled, work); |
614 | } | |
615 | return (success); | |
616 | } | |
617 | ||
618 | #endif | |
619 | ||
620 | static int | |
621 | demangle_template (declp, mangled, work) | |
622 | string *declp; | |
623 | const char **mangled; | |
624 | struct work_stuff *work; | |
625 | { | |
626 | int i; | |
f9b5584c FF |
627 | string tname; |
628 | string trawname; | |
629 | int is_pointer; | |
630 | int is_real; | |
631 | int is_integral; | |
632 | int r; | |
633 | int need_comma = 0; | |
634 | int success = 0; | |
635 | int done; | |
636 | const char *old_p; | |
637 | int symbol_len; | |
638 | string temp; | |
639 | ||
640 | (*mangled)++; | |
641 | string_init (&tname); | |
642 | string_init (&trawname); | |
643 | /* get template name */ | |
644 | if (!get_count (mangled, &r)) | |
645 | { | |
646 | return (0); | |
647 | } | |
648 | string_appendn (&tname, *mangled, r); | |
649 | string_appendn (&trawname, *mangled, r); | |
650 | string_appendn (&trawname, "", 1); | |
651 | *mangled += r; | |
652 | string_append (&tname, "<"); | |
653 | /* get size of template parameter list */ | |
654 | if (!get_count (mangled, &r)) | |
655 | { | |
656 | return (0); | |
657 | } | |
658 | for (i = 0; i < r; i++) | |
659 | { | |
660 | if (need_comma) | |
dd3b648e | 661 | { |
f9b5584c FF |
662 | string_append (&tname, ", "); |
663 | } | |
664 | /* Z for type parameters */ | |
665 | if (**mangled == 'Z') | |
666 | { | |
667 | (*mangled)++; | |
668 | success = do_type (mangled, &temp, work); | |
669 | string_appendn (&temp, "", 1); | |
670 | if (success) | |
572acbbe | 671 | { |
f9b5584c FF |
672 | string_append (&tname, temp.b); |
673 | } | |
674 | string_delete(&temp); | |
675 | if (!success) | |
676 | { | |
677 | break; | |
572acbbe | 678 | } |
572acbbe MT |
679 | } |
680 | else | |
681 | { | |
f9b5584c FF |
682 | /* otherwise, value parameter */ |
683 | old_p = *mangled; | |
684 | is_pointer = 0; | |
685 | is_real = 0; | |
686 | is_integral = 0; | |
687 | done = 0; | |
688 | success = do_type (mangled, &temp, work); | |
689 | string_appendn (&temp, "", 1); | |
690 | if (success) | |
691 | { | |
692 | string_append (&tname, temp.b); | |
693 | } | |
694 | string_delete(&temp); | |
695 | if (!success) | |
696 | { | |
697 | break; | |
698 | } | |
699 | string_append (&tname, "="); | |
700 | while (*old_p && !done) | |
701 | { | |
702 | switch (*old_p) | |
703 | { | |
704 | case 'P': | |
705 | case 'R': | |
51b57ded FF |
706 | done = is_pointer = 1; |
707 | break; | |
f9b5584c FF |
708 | case 'C': /* const */ |
709 | case 'S': /* explicitly signed [char] */ | |
710 | case 'U': /* unsigned */ | |
711 | case 'V': /* volatile */ | |
712 | case 'F': /* function */ | |
713 | case 'M': /* member function */ | |
714 | case 'O': /* ??? */ | |
51b57ded FF |
715 | old_p++; |
716 | continue; | |
f9b5584c FF |
717 | case 'Q': /* repetition of following */ |
718 | case 'T': /* remembered type */ | |
51b57ded FF |
719 | abort (); |
720 | break; | |
f9b5584c | 721 | case 'v': /* void */ |
51b57ded FF |
722 | abort (); |
723 | break; | |
f9b5584c FF |
724 | case 'x': /* long long */ |
725 | case 'l': /* long */ | |
726 | case 'i': /* int */ | |
727 | case 's': /* short */ | |
728 | case 'c': /* char */ | |
51b57ded FF |
729 | done = is_integral = 1; |
730 | break; | |
f9b5584c FF |
731 | case 'r': /* long double */ |
732 | case 'd': /* double */ | |
733 | case 'f': /* float */ | |
51b57ded FF |
734 | done = is_real = 1; |
735 | break; | |
f9b5584c | 736 | default: |
51b57ded | 737 | abort (); |
f9b5584c FF |
738 | } |
739 | } | |
740 | if (is_integral) | |
741 | { | |
742 | if (**mangled == 'm') | |
743 | { | |
744 | string_appendn (&tname, "-", 1); | |
745 | (*mangled)++; | |
746 | } | |
747 | while (isdigit (**mangled)) | |
748 | { | |
749 | string_appendn (&tname, *mangled, 1); | |
750 | (*mangled)++; | |
751 | } | |
752 | } | |
753 | else if (is_real) | |
754 | { | |
755 | if (**mangled == 'm') | |
756 | { | |
757 | string_appendn (&tname, "-", 1); | |
758 | (*mangled)++; | |
759 | } | |
760 | while (isdigit (**mangled)) | |
761 | { | |
762 | string_appendn (&tname, *mangled, 1); | |
763 | (*mangled)++; | |
764 | } | |
765 | if (**mangled == '.') /* fraction */ | |
766 | { | |
767 | string_appendn (&tname, ".", 1); | |
768 | (*mangled)++; | |
769 | while (isdigit (**mangled)) | |
770 | { | |
771 | string_appendn (&tname, *mangled, 1); | |
772 | (*mangled)++; | |
773 | } | |
774 | } | |
775 | if (**mangled == 'e') /* exponent */ | |
776 | { | |
777 | string_appendn (&tname, "e", 1); | |
778 | (*mangled)++; | |
779 | while (isdigit (**mangled)) | |
780 | { | |
781 | string_appendn (&tname, *mangled, 1); | |
782 | (*mangled)++; | |
783 | } | |
784 | } | |
785 | } | |
786 | else if (is_pointer) | |
787 | { | |
788 | if (!get_count (mangled, &symbol_len)) | |
789 | { | |
790 | success = 0; | |
791 | break; | |
792 | } | |
793 | string_appendn (&tname, *mangled, symbol_len); | |
794 | *mangled += symbol_len; | |
795 | } | |
dd3b648e | 796 | } |
f9b5584c FF |
797 | need_comma = 1; |
798 | } | |
799 | string_append (&tname, ">::"); | |
800 | if (work -> destructor) | |
801 | { | |
802 | string_append (&tname, "~"); | |
803 | } | |
804 | if (work -> constructor || work -> destructor) | |
805 | { | |
806 | string_append (&tname, trawname.b); | |
807 | } | |
808 | string_delete(&trawname); | |
809 | ||
810 | if (!success) | |
811 | { | |
812 | string_delete(&tname); | |
dd3b648e RP |
813 | } |
814 | else | |
815 | { | |
f9b5584c FF |
816 | string_prepend (declp, tname.b); |
817 | string_delete (&tname); | |
818 | ||
819 | if (work -> static_type) | |
820 | { | |
821 | string_append (declp, *mangled + 1); | |
822 | *mangled += strlen (*mangled); | |
823 | success = 1; | |
824 | } | |
825 | else | |
826 | { | |
827 | success = demangle_args (declp, mangled, work); | |
828 | } | |
dd3b648e | 829 | } |
51b57ded | 830 | return (success); |
f9b5584c | 831 | } |
dd3b648e | 832 | |
f9b5584c FF |
833 | /* |
834 | ||
835 | LOCAL FUNCTION | |
836 | ||
837 | demangle_class -- demangle a mangled class sequence | |
838 | ||
839 | SYNOPSIS | |
840 | ||
841 | static int | |
842 | demangle_class (string *declp, const char **mangled, | |
843 | struct work_stuff *work) | |
844 | ||
845 | DESCRIPTION | |
846 | ||
847 | DECLP points to the buffer into which demangling is being done. | |
848 | ||
849 | *MANGLED points to the current token to be demangled. On input, | |
850 | it points to a mangled class (I.E. "3foo", "13verylongclass", etc.) | |
851 | On exit, it points to the next token after the mangled class on | |
852 | success, or the first unconsumed token on failure. | |
853 | ||
854 | If the CONSTRUCTOR or DESTRUCTOR flags are set in WORK, then | |
855 | we are demangling a constructor or destructor. In this case | |
856 | we prepend "class::class" or "class::~class" to DECLP. | |
857 | ||
858 | Otherwise, we prepend "class::" to the current DECLP. | |
859 | ||
860 | Reset the constructor/destructor flags once they have been | |
861 | "consumed". This allows demangle_class to be called later during | |
862 | the same demangling, to do normal class demangling. | |
863 | ||
864 | Returns 1 if demangling is successful, 0 otherwise. | |
865 | ||
866 | */ | |
867 | ||
868 | static int | |
869 | demangle_class (declp, mangled, work) | |
870 | string *declp; | |
871 | const char **mangled; | |
872 | struct work_stuff *work; | |
873 | { | |
874 | int n; | |
875 | int success = 0; | |
876 | ||
1c92ca6f | 877 | n = consume_count (mangled); |
f9b5584c FF |
878 | if (strlen (*mangled) >= n) |
879 | { | |
880 | if (work -> constructor || work -> destructor) | |
f536aa39 | 881 | { |
f9b5584c FF |
882 | string_prependn (declp, *mangled, n); |
883 | if (work -> destructor) | |
f536aa39 | 884 | { |
f9b5584c | 885 | string_prepend (declp, "~"); |
f536aa39 | 886 | } |
f9b5584c | 887 | work -> constructor = work -> destructor = 0; |
dd3b648e | 888 | } |
f9b5584c FF |
889 | string_prepend (declp, "::"); |
890 | string_prependn (declp, *mangled, n); | |
891 | *mangled += n; | |
892 | success = 1; | |
893 | } | |
894 | return (success); | |
895 | } | |
896 | ||
897 | /* | |
898 | ||
899 | LOCAL FUNCTION | |
900 | ||
901 | demangle_prefix -- consume the mangled name prefix and find signature | |
902 | ||
903 | SYNOPSIS | |
904 | ||
905 | static int | |
906 | demangle_prefix (string *declp, const char **mangled, | |
907 | struct work_stuff *work) | |
908 | ||
909 | DESCRIPTION | |
910 | ||
911 | Consume and demangle the prefix of the mangled name. | |
912 | ||
913 | DECLP points to the string buffer into which demangled output is | |
914 | placed. On entry, the buffer is empty. On exit it contains | |
915 | the root function name, the demangled operator name, or in some | |
916 | special cases either nothing or the completely demangled result. | |
917 | ||
918 | MANGLED points to the current pointer into the mangled name. As each | |
919 | token of the mangled name is consumed, it is updated. Upon entry | |
920 | the current mangled name pointer points to the first character of | |
921 | the mangled name. Upon exit, it should point to the first character | |
922 | of the signature if demangling was successful, or to the first | |
923 | unconsumed character if demangling of the prefix was unsuccessful. | |
924 | ||
925 | Returns 1 on success, 0 otherwise. | |
926 | */ | |
927 | ||
928 | static int | |
929 | demangle_prefix (declp, mangled, work) | |
930 | string *declp; | |
931 | const char **mangled; | |
932 | struct work_stuff *work; | |
933 | { | |
934 | int success = 1; | |
935 | const char *scan; | |
3dc755fb | 936 | int i; |
f9b5584c | 937 | |
2dbde378 | 938 | scan = strstr (*mangled, "__"); |
3dc755fb FF |
939 | |
940 | if (scan != NULL) | |
f9b5584c | 941 | { |
3dc755fb FF |
942 | /* We found a sequence of two or more '_', ensure that we start at |
943 | the last pair in the sequence. */ | |
944 | i = strspn (scan, "_"); | |
945 | if (i > 2) | |
2dbde378 | 946 | { |
3dc755fb | 947 | scan += (i - 2); |
2dbde378 | 948 | } |
f9b5584c | 949 | } |
3dc755fb FF |
950 | |
951 | if (scan == NULL) | |
952 | { | |
953 | success = 0; | |
954 | } | |
f9b5584c FF |
955 | else if (work -> static_type) |
956 | { | |
957 | if (!isdigit (scan[0]) && (scan[0] != 't')) | |
dd3b648e | 958 | { |
f9b5584c | 959 | success = 0; |
dd3b648e | 960 | } |
f9b5584c FF |
961 | } |
962 | else if ((scan == *mangled) && (isdigit (scan[2]) || (scan[2] == 'Q'))) | |
963 | { | |
964 | /* A GNU style constructor starts with "__<digit>" or "__Q". */ | |
965 | work -> constructor = 1; | |
966 | *mangled = scan + 2; | |
967 | } | |
968 | else if ((scan == *mangled) && !isdigit (scan[2]) && (scan[2] != 't')) | |
969 | { | |
970 | /* Mangled name starts with "__". Skip over any leading '_' characters, | |
971 | then find the next "__" that separates the prefix from the signature. | |
972 | */ | |
3dc755fb FF |
973 | if (!(CFRONT_DEMANGLING || LUCID_DEMANGLING) |
974 | || (cfront_special (declp, mangled, work) == 0)) | |
dd3b648e | 975 | { |
3dc755fb FF |
976 | while (*scan == '_') |
977 | { | |
978 | scan++; | |
979 | } | |
980 | if ((scan = strstr (scan, "__")) == NULL || (*(scan + 2) == '\0')) | |
981 | { | |
982 | /* No separator (I.E. "__not_mangled"), or empty signature | |
983 | (I.E. "__not_mangled_either__") */ | |
984 | success = 0; | |
985 | } | |
986 | else | |
987 | { | |
988 | demangle_function_name (declp, mangled, work, scan); | |
989 | } | |
4c53d9ca | 990 | } |
f9b5584c FF |
991 | } |
992 | else if (*(scan + 2) != '\0') | |
993 | { | |
994 | /* Mangled name does not start with "__" but does have one somewhere | |
995 | in there with non empty stuff after it. Looks like a global | |
996 | function name. */ | |
997 | demangle_function_name (declp, mangled, work, scan); | |
998 | } | |
999 | else | |
1000 | { | |
1001 | /* Doesn't look like a mangled name */ | |
1002 | success = 0; | |
1003 | } | |
1004 | return (success); | |
1005 | } | |
4c53d9ca | 1006 | |
1c92ca6f FF |
1007 | /* |
1008 | ||
1009 | LOCAL FUNCTION | |
1010 | ||
1011 | gnu_special -- special handling of gnu mangled strings | |
1012 | ||
1013 | SYNOPSIS | |
1014 | ||
1015 | static int | |
1016 | gnu_special (string *declp, const char **mangled, | |
1017 | struct work_stuff *work) | |
1018 | ||
1019 | ||
1020 | DESCRIPTION | |
1021 | ||
1022 | Process some special GNU style mangling forms that don't fit | |
1023 | the normal pattern. For example: | |
1024 | ||
1025 | _$_3foo (destructor for class foo) | |
3dc755fb FF |
1026 | _vt$foo (foo virtual table) |
1027 | _vt$foo$bar (foo::bar virtual table) | |
1c92ca6f FF |
1028 | _3foo$varname (static data member) |
1029 | */ | |
1030 | ||
f9b5584c FF |
1031 | static int |
1032 | gnu_special (declp, mangled, work) | |
1033 | string *declp; | |
1034 | const char **mangled; | |
1035 | struct work_stuff *work; | |
1036 | { | |
1037 | int n; | |
1038 | int success = 1; | |
1039 | const char *p; | |
1040 | ||
1041 | if ((*mangled)[0] == '_' | |
3dc755fb | 1042 | && strchr (cplus_markers, (*mangled)[1]) != NULL |
f9b5584c FF |
1043 | && (*mangled)[2] == '_') |
1044 | { | |
1045 | /* Found a GNU style destructor, get past "_<CPLUS_MARKER>_" */ | |
1046 | (*mangled) += 3; | |
1047 | work -> destructor = 1; | |
1048 | } | |
f9b5584c FF |
1049 | else if ((*mangled)[0] == '_' |
1050 | && (*mangled)[1] == 'v' | |
1051 | && (*mangled)[2] == 't' | |
3dc755fb | 1052 | && strchr (cplus_markers, (*mangled)[3]) != NULL) |
dd3b648e | 1053 | { |
f9b5584c FF |
1054 | /* Found a GNU style virtual table, get past "_vt<CPLUS_MARKER>" |
1055 | and create the decl. Note that we consume the entire mangled | |
1056 | input string, which means that demangle_signature has no work | |
1057 | to do. */ | |
1058 | (*mangled) += 4; | |
3dc755fb FF |
1059 | while (**mangled != '\0') |
1060 | { | |
1061 | n = strcspn (*mangled, cplus_markers); | |
1062 | string_appendn (declp, *mangled, n); | |
1063 | (*mangled) += n; | |
1064 | if (**mangled != '\0') | |
1065 | { | |
1066 | string_append (declp, "::"); | |
1067 | (*mangled)++; | |
1068 | } | |
1069 | } | |
f9b5584c | 1070 | string_append (declp, " virtual table"); |
dd3b648e | 1071 | } |
1c92ca6f FF |
1072 | else if ((*mangled)[0] == '_' |
1073 | && isdigit ((*mangled)[1]) | |
3dc755fb | 1074 | && (p = strpbrk (*mangled, cplus_markers)) != NULL) |
1c92ca6f FF |
1075 | { |
1076 | /* static data member, "_3foo$varname" for example */ | |
1077 | (*mangled)++; | |
1078 | p++; | |
1079 | n = consume_count (mangled); | |
1080 | string_appendn (declp, *mangled, n); | |
1081 | string_append (declp, "::"); | |
1082 | n = strlen (p); | |
1083 | string_appendn (declp, p, n); | |
1084 | (*mangled) = p + n; | |
1085 | } | |
dd3b648e RP |
1086 | else |
1087 | { | |
f9b5584c FF |
1088 | success = 0; |
1089 | } | |
1090 | return (success); | |
1091 | } | |
1092 | ||
3dc755fb FF |
1093 | /* |
1094 | ||
1095 | LOCAL FUNCTION | |
1096 | ||
1097 | cfront_special -- special handling of cfront/lucid mangled strings | |
1098 | ||
1099 | SYNOPSIS | |
1100 | ||
1101 | static int | |
1102 | cfront_special (string *declp, const char **mangled, | |
1103 | struct work_stuff *work) | |
1104 | ||
1105 | ||
1106 | DESCRIPTION | |
1107 | ||
1108 | Process some special cfront style mangling forms that don't fit | |
1109 | the normal pattern. For example: | |
1110 | ||
1111 | __vtbl__3foo (foo virtual table) | |
1112 | __vtbl__3foo__3bar (bar::foo virtual table) | |
1113 | ||
1114 | */ | |
1115 | ||
1116 | static int | |
1117 | cfront_special (declp, mangled, work) | |
1118 | string *declp; | |
1119 | const char **mangled; | |
1120 | struct work_stuff *work; | |
1121 | { | |
1122 | int n; | |
1123 | int i; | |
1124 | int success = 1; | |
1125 | const char *p; | |
1126 | ||
1127 | if (strncmp (*mangled, ARM_VTABLE_STRING, ARM_VTABLE_STRLEN) == 0) | |
1128 | { | |
1129 | /* Found a cfront style virtual table, get past ARM_VTABLE_STRING | |
1130 | and create the decl. Note that we consume the entire mangled | |
1131 | input string, which means that demangle_signature has no work | |
1132 | to do. */ | |
1133 | (*mangled) += ARM_VTABLE_STRLEN; | |
1134 | while (**mangled != '\0') | |
1135 | { | |
1136 | n = consume_count (mangled); | |
1137 | string_prependn (declp, *mangled, n); | |
1138 | (*mangled) += n; | |
1139 | if ((*mangled)[0] == '_' && (*mangled)[1] == '_') | |
1140 | { | |
1141 | string_prepend (declp, "::"); | |
1142 | (*mangled) += 2; | |
1143 | } | |
1144 | } | |
1145 | string_append (declp, " virtual table"); | |
1146 | } | |
1147 | else | |
1148 | { | |
1149 | success = 0; | |
1150 | } | |
1151 | return (success); | |
1152 | } | |
1153 | ||
f9b5584c FF |
1154 | /* Do a qualified name, such as "Q25Outer5Inner" for "Outer::Inner" */ |
1155 | ||
1156 | static int | |
1157 | demangle_qualified (declp, mangled, work) | |
1158 | string *declp; | |
1159 | const char **mangled; | |
1160 | struct work_stuff *work; | |
1161 | { | |
1162 | int n; | |
1163 | string class; | |
1164 | string tmp; | |
1165 | int success = 0; | |
1166 | ||
1167 | n = (*mangled)[1] - '0'; | |
1168 | if (n >= 0 && n <= 9) | |
1169 | { | |
1170 | if ((*mangled)[2] == '_') | |
1171 | { | |
1172 | /* cfront style */ | |
1173 | (*mangled)++; | |
1174 | } | |
1175 | (*mangled) += 2; | |
1176 | string_init (&class); | |
1177 | while (n-- > 0) | |
1178 | { | |
1179 | success = do_type (mangled, &tmp, work); | |
1180 | string_appends (&class, &tmp); | |
1181 | string_append (&class, "::"); | |
1182 | if (n == 0 && (work -> constructor || work -> destructor)) | |
1183 | { | |
1184 | if (work -> destructor) | |
1185 | { | |
1186 | string_append (&class, "~"); | |
1187 | } | |
1188 | string_appends (&class, &tmp); | |
1189 | } | |
1190 | string_delete (&tmp); | |
1191 | } | |
1192 | work -> constructor = work -> destructor = 0; | |
1193 | string_prependn (declp, class.b, class.p - class.b); | |
1194 | string_delete (&class); | |
dd3b648e | 1195 | } |
f9b5584c | 1196 | return (success); |
dd3b648e RP |
1197 | } |
1198 | ||
1c92ca6f FF |
1199 | /* |
1200 | ||
1201 | LOCAL FUNCTION | |
1202 | ||
1203 | get_count -- convert an ascii count to integer, consuming tokens | |
1204 | ||
1205 | SYNOPSIS | |
1206 | ||
1207 | static int | |
1208 | get_count (const char **type, int *count) | |
1209 | ||
1210 | DESCRIPTION | |
1211 | ||
1212 | Return 0 if no conversion is performed, 1 if a string is converted. | |
1213 | */ | |
1214 | ||
dd3b648e RP |
1215 | static int |
1216 | get_count (type, count) | |
1217 | const char **type; | |
1218 | int *count; | |
1219 | { | |
f9b5584c FF |
1220 | const char *p; |
1221 | int n; | |
1222 | ||
dd3b648e | 1223 | if (!isdigit (**type)) |
f9b5584c FF |
1224 | { |
1225 | return (0); | |
1226 | } | |
1c92ca6f | 1227 | else |
dd3b648e | 1228 | { |
1c92ca6f FF |
1229 | *count = **type - '0'; |
1230 | (*type)++; | |
1231 | if (isdigit (**type)) | |
dd3b648e | 1232 | { |
1c92ca6f FF |
1233 | p = *type; |
1234 | n = *count; | |
1235 | do | |
1236 | { | |
1237 | n *= 10; | |
1238 | n += *p - '0'; | |
1239 | p++; | |
1240 | } | |
1241 | while (isdigit (*p)); | |
1242 | if (*p == '_') | |
1243 | { | |
1244 | *type = p + 1; | |
1245 | *count = n; | |
1246 | } | |
dd3b648e RP |
1247 | } |
1248 | } | |
f9b5584c | 1249 | return (1); |
dd3b648e RP |
1250 | } |
1251 | ||
1252 | /* result will be initialised here; it will be freed on failure */ | |
1253 | ||
1254 | static int | |
f536aa39 | 1255 | do_type (type, result, work) |
dd3b648e RP |
1256 | const char **type; |
1257 | string *result; | |
f536aa39 | 1258 | struct work_stuff *work; |
dd3b648e RP |
1259 | { |
1260 | int n; | |
1261 | int done; | |
dd3b648e RP |
1262 | int success; |
1263 | string decl; | |
1264 | const char *remembered_type; | |
f9b5584c FF |
1265 | int constp; |
1266 | int volatilep; | |
dd3b648e RP |
1267 | |
1268 | string_init (&decl); | |
1269 | string_init (result); | |
1270 | ||
1271 | done = 0; | |
1272 | success = 1; | |
1273 | while (success && !done) | |
1274 | { | |
1275 | int member; | |
1276 | switch (**type) | |
1277 | { | |
f9b5584c FF |
1278 | /* A qualified name, such as "Outer::Inner". Note qualifier count |
1279 | is limited to a single digit (0-9 qualifiers). */ | |
55838914 JK |
1280 | case 'Q': |
1281 | n = (*type)[1] - '0'; | |
1282 | if (n < 0 || n > 9) | |
f9b5584c FF |
1283 | { |
1284 | success = 0; | |
1285 | } | |
f536aa39 | 1286 | if ((*type)[2] == '_') /* cfront style */ |
f9b5584c FF |
1287 | { |
1288 | (*type)++; | |
1289 | } | |
55838914 JK |
1290 | *type += 2; |
1291 | while (n-- > 0) | |
f9b5584c FF |
1292 | { |
1293 | do_type (type, result, work); | |
1294 | } | |
55838914 JK |
1295 | break; |
1296 | ||
f9b5584c | 1297 | /* A pointer type */ |
dd3b648e | 1298 | case 'P': |
f9b5584c | 1299 | (*type)++; |
dd3b648e RP |
1300 | string_prepend (&decl, "*"); |
1301 | break; | |
1302 | ||
f9b5584c | 1303 | /* A reference type */ |
dd3b648e | 1304 | case 'R': |
f9b5584c | 1305 | (*type)++; |
dd3b648e RP |
1306 | string_prepend (&decl, "&"); |
1307 | break; | |
1308 | ||
f9b5584c | 1309 | /* A back reference to a previously seen type */ |
dd3b648e | 1310 | case 'T': |
f9b5584c FF |
1311 | (*type)++; |
1312 | if (!get_count (type, &n) || n >= work -> ntypes) | |
1313 | { | |
1314 | success = 0; | |
1315 | } | |
dd3b648e RP |
1316 | else |
1317 | { | |
f9b5584c | 1318 | remembered_type = work -> typevec[n]; |
dd3b648e RP |
1319 | type = &remembered_type; |
1320 | } | |
1321 | break; | |
1322 | ||
f9b5584c | 1323 | /* A function */ |
dd3b648e | 1324 | case 'F': |
f9b5584c FF |
1325 | (*type)++; |
1326 | if (!STRING_EMPTY (&decl) && decl.b[0] == '*') | |
dd3b648e RP |
1327 | { |
1328 | string_prepend (&decl, "("); | |
1329 | string_append (&decl, ")"); | |
1330 | } | |
8f793aa5 | 1331 | /* After picking off the function args, we expect to either find the |
f9b5584c FF |
1332 | function return type (preceded by an '_') or the end of the |
1333 | string. */ | |
1334 | if (!demangle_args (&decl, type, work) | |
8f793aa5 | 1335 | || (**type != '_' && **type != '\0')) |
f9b5584c FF |
1336 | { |
1337 | success = 0; | |
1338 | } | |
8f793aa5 | 1339 | if (success && (**type == '_')) |
f9b5584c FF |
1340 | { |
1341 | (*type)++; | |
1342 | } | |
dd3b648e RP |
1343 | break; |
1344 | ||
1345 | case 'M': | |
1346 | case 'O': | |
1347 | { | |
f9b5584c FF |
1348 | constp = 0; |
1349 | volatilep = 0; | |
dd3b648e RP |
1350 | |
1351 | member = **type == 'M'; | |
f9b5584c | 1352 | (*type)++; |
dd3b648e RP |
1353 | if (!isdigit (**type)) |
1354 | { | |
1355 | success = 0; | |
1356 | break; | |
1357 | } | |
1c92ca6f | 1358 | n = consume_count (type); |
dd3b648e RP |
1359 | if (strlen (*type) < n) |
1360 | { | |
1361 | success = 0; | |
1362 | break; | |
1363 | } | |
1364 | string_append (&decl, ")"); | |
1365 | string_prepend (&decl, "::"); | |
1366 | string_prependn (&decl, *type, n); | |
1367 | string_prepend (&decl, "("); | |
1368 | *type += n; | |
1369 | if (member) | |
1370 | { | |
1371 | if (**type == 'C') | |
1372 | { | |
f9b5584c | 1373 | (*type)++; |
dd3b648e RP |
1374 | constp = 1; |
1375 | } | |
1376 | if (**type == 'V') | |
1377 | { | |
f9b5584c | 1378 | (*type)++; |
dd3b648e RP |
1379 | volatilep = 1; |
1380 | } | |
1381 | if (*(*type)++ != 'F') | |
1382 | { | |
1383 | success = 0; | |
1384 | break; | |
1385 | } | |
1386 | } | |
f9b5584c FF |
1387 | if ((member && !demangle_args (&decl, type, work)) |
1388 | || **type != '_') | |
dd3b648e RP |
1389 | { |
1390 | success = 0; | |
1391 | break; | |
1392 | } | |
f9b5584c | 1393 | (*type)++; |
8f793aa5 | 1394 | if (! PRINT_ANSI_QUALIFIERS) |
f9b5584c FF |
1395 | { |
1396 | break; | |
1397 | } | |
dd3b648e RP |
1398 | if (constp) |
1399 | { | |
f9b5584c | 1400 | APPEND_BLANK (&decl); |
dd3b648e RP |
1401 | string_append (&decl, "const"); |
1402 | } | |
1403 | if (volatilep) | |
1404 | { | |
f9b5584c | 1405 | APPEND_BLANK (&decl); |
dd3b648e RP |
1406 | string_append (&decl, "volatile"); |
1407 | } | |
1408 | break; | |
1409 | } | |
1410 | ||
1411 | case 'C': | |
1412 | if ((*type)[1] == 'P') | |
1413 | { | |
f9b5584c | 1414 | (*type)++; |
8f793aa5 | 1415 | if (PRINT_ANSI_QUALIFIERS) |
dd3b648e | 1416 | { |
f9b5584c FF |
1417 | if (!STRING_EMPTY (&decl)) |
1418 | { | |
1419 | string_prepend (&decl, " "); | |
1420 | } | |
dd3b648e RP |
1421 | string_prepend (&decl, "const"); |
1422 | } | |
1423 | break; | |
1424 | } | |
1425 | ||
1426 | /* fall through */ | |
1427 | default: | |
1428 | done = 1; | |
1429 | break; | |
1430 | } | |
1431 | } | |
1432 | ||
f9b5584c FF |
1433 | success = demangle_fund_type (type, result, work); |
1434 | ||
1435 | if (success) | |
1436 | { | |
1437 | if (!STRING_EMPTY (&decl)) | |
1438 | { | |
1439 | string_append (result, " "); | |
1440 | string_appends (result, &decl); | |
1441 | } | |
1442 | } | |
1443 | else | |
1444 | { | |
1445 | string_delete (result); | |
1446 | } | |
1447 | string_delete (&decl); | |
1448 | return (success); | |
1449 | } | |
1450 | ||
1451 | /* Given a pointer to a type string that represents a fundamental type | |
1452 | argument (int, long, unsigned int, etc) in TYPE, a pointer to the | |
1453 | string in which the demangled output is being built in RESULT, and | |
1454 | the WORK structure, decode the types and add them to the result. | |
1455 | ||
1456 | For example: | |
1457 | ||
1458 | "Ci" => "const int" | |
1459 | "Sl" => "signed long" | |
1460 | "CUs" => "const unsigned short" | |
1461 | ||
1462 | */ | |
1463 | ||
1464 | static int | |
1465 | demangle_fund_type (type, result, work) | |
1466 | const char **type; | |
1467 | string *result; | |
1468 | struct work_stuff *work; | |
1469 | { | |
1470 | int done = 0; | |
1471 | int success = 1; | |
1472 | int n; | |
1473 | ||
1474 | /* First pick off any type qualifiers. There can be more than one. */ | |
1475 | ||
1476 | while (!done) | |
dd3b648e RP |
1477 | { |
1478 | switch (**type) | |
1479 | { | |
f9b5584c FF |
1480 | case 'C': |
1481 | (*type)++; | |
1482 | if (PRINT_ANSI_QUALIFIERS) | |
1483 | { | |
1484 | APPEND_BLANK (result); | |
1485 | string_append (result, "const"); | |
1486 | } | |
1487 | break; | |
1488 | case 'U': | |
1489 | (*type)++; | |
1490 | APPEND_BLANK (result); | |
1491 | string_append (result, "unsigned"); | |
1492 | break; | |
1493 | case 'S': /* signed char only */ | |
1494 | (*type)++; | |
1495 | APPEND_BLANK (result); | |
1496 | string_append (result, "signed"); | |
1497 | break; | |
1498 | case 'V': | |
1499 | (*type)++; | |
1500 | if (PRINT_ANSI_QUALIFIERS) | |
1501 | { | |
1502 | APPEND_BLANK (result); | |
1503 | string_append (result, "volatile"); | |
1504 | } | |
1505 | break; | |
1506 | default: | |
1507 | done = 1; | |
1508 | break; | |
dd3b648e RP |
1509 | } |
1510 | } | |
1511 | ||
f9b5584c FF |
1512 | /* Now pick off the fundamental type. There can be only one. */ |
1513 | ||
1514 | switch (**type) | |
1515 | { | |
dd3b648e RP |
1516 | case '\0': |
1517 | case '_': | |
1518 | break; | |
1519 | case 'v': | |
f9b5584c FF |
1520 | (*type)++; |
1521 | APPEND_BLANK (result); | |
dd3b648e RP |
1522 | string_append (result, "void"); |
1523 | break; | |
1524 | case 'x': | |
f9b5584c FF |
1525 | (*type)++; |
1526 | APPEND_BLANK (result); | |
dd3b648e RP |
1527 | string_append (result, "long long"); |
1528 | break; | |
1529 | case 'l': | |
f9b5584c FF |
1530 | (*type)++; |
1531 | APPEND_BLANK (result); | |
dd3b648e RP |
1532 | string_append (result, "long"); |
1533 | break; | |
1534 | case 'i': | |
f9b5584c FF |
1535 | (*type)++; |
1536 | APPEND_BLANK (result); | |
dd3b648e RP |
1537 | string_append (result, "int"); |
1538 | break; | |
1539 | case 's': | |
f9b5584c FF |
1540 | (*type)++; |
1541 | APPEND_BLANK (result); | |
dd3b648e RP |
1542 | string_append (result, "short"); |
1543 | break; | |
1544 | case 'c': | |
f9b5584c FF |
1545 | (*type)++; |
1546 | APPEND_BLANK (result); | |
dd3b648e RP |
1547 | string_append (result, "char"); |
1548 | break; | |
1549 | case 'r': | |
f9b5584c FF |
1550 | (*type)++; |
1551 | APPEND_BLANK (result); | |
dd3b648e RP |
1552 | string_append (result, "long double"); |
1553 | break; | |
1554 | case 'd': | |
f9b5584c FF |
1555 | (*type)++; |
1556 | APPEND_BLANK (result); | |
dd3b648e RP |
1557 | string_append (result, "double"); |
1558 | break; | |
1559 | case 'f': | |
f9b5584c FF |
1560 | (*type)++; |
1561 | APPEND_BLANK (result); | |
dd3b648e RP |
1562 | string_append (result, "float"); |
1563 | break; | |
1564 | case 'G': | |
f9b5584c | 1565 | (*type)++; |
dd3b648e RP |
1566 | if (!isdigit (**type)) |
1567 | { | |
1568 | success = 0; | |
1569 | break; | |
1570 | } | |
1571 | /* fall through */ | |
f9b5584c | 1572 | /* An explicit type, such as "6mytype" or "7integer" */ |
dd3b648e RP |
1573 | case '0': |
1574 | case '1': | |
1575 | case '2': | |
1576 | case '3': | |
1577 | case '4': | |
1578 | case '5': | |
1579 | case '6': | |
1580 | case '7': | |
1581 | case '8': | |
1582 | case '9': | |
1c92ca6f | 1583 | n = consume_count (type); |
dd3b648e RP |
1584 | if (strlen (*type) < n) |
1585 | { | |
1586 | success = 0; | |
1587 | break; | |
1588 | } | |
f9b5584c | 1589 | APPEND_BLANK (result); |
dd3b648e RP |
1590 | string_appendn (result, *type, n); |
1591 | *type += n; | |
1592 | break; | |
1593 | default: | |
1594 | success = 0; | |
1595 | break; | |
1596 | } | |
1597 | ||
f9b5584c | 1598 | return (success); |
dd3b648e RP |
1599 | } |
1600 | ||
f9b5584c | 1601 | /* `result' will be initialized in do_type; it will be freed on failure */ |
dd3b648e RP |
1602 | |
1603 | static int | |
f536aa39 | 1604 | do_arg (type, result, work) |
dd3b648e RP |
1605 | const char **type; |
1606 | string *result; | |
f536aa39 | 1607 | struct work_stuff *work; |
dd3b648e RP |
1608 | { |
1609 | const char *start = *type; | |
1610 | ||
f536aa39 | 1611 | if (!do_type (type, result, work)) |
f9b5584c FF |
1612 | { |
1613 | return (0); | |
1614 | } | |
1615 | else | |
1616 | { | |
1617 | remember_type (start, *type - start, work); | |
1618 | return (1); | |
1619 | } | |
dd3b648e RP |
1620 | } |
1621 | ||
1622 | static void | |
f536aa39 | 1623 | remember_type (start, len, work) |
dd3b648e RP |
1624 | const char *start; |
1625 | int len; | |
f536aa39 | 1626 | struct work_stuff *work; |
dd3b648e RP |
1627 | { |
1628 | char *tem; | |
1629 | ||
f9b5584c | 1630 | if (work -> ntypes >= work -> typevec_size) |
dd3b648e | 1631 | { |
f9b5584c | 1632 | if (work -> typevec_size == 0) |
dd3b648e | 1633 | { |
f9b5584c FF |
1634 | work -> typevec_size = 3; |
1635 | work -> typevec = | |
1636 | (char **) xmalloc (sizeof (char *) * work -> typevec_size); | |
dd3b648e RP |
1637 | } |
1638 | else | |
1639 | { | |
f9b5584c FF |
1640 | work -> typevec_size *= 2; |
1641 | work -> typevec = | |
1642 | (char **) xrealloc ((char *)work -> typevec, | |
1643 | sizeof (char *) * work -> typevec_size); | |
dd3b648e RP |
1644 | } |
1645 | } | |
1646 | tem = (char *) xmalloc (len + 1); | |
1647 | memcpy (tem, start, len); | |
1648 | tem[len] = '\0'; | |
f9b5584c | 1649 | work -> typevec[work -> ntypes++] = tem; |
dd3b648e RP |
1650 | } |
1651 | ||
3dc755fb FF |
1652 | /* Forget the remembered types, but not the type vector itself. */ |
1653 | ||
1654 | static void | |
1655 | forget_types (work) | |
1656 | struct work_stuff *work; | |
1657 | { | |
1658 | int i; | |
1659 | ||
1660 | while (work -> ntypes > 0) | |
1661 | { | |
1662 | i = --(work -> ntypes); | |
1663 | if (work -> typevec[i] != NULL) | |
1664 | { | |
1665 | free (work -> typevec[i]); | |
1666 | work -> typevec[i] = NULL; | |
1667 | } | |
1668 | } | |
1669 | } | |
1670 | ||
f9b5584c FF |
1671 | /* Process the argument list part of the signature, after any class spec |
1672 | has been consumed, as well as the first 'F' character (if any). For | |
1673 | example: | |
1674 | ||
1675 | "__als__3fooRT0" => process "RT0" | |
1676 | "complexfunc5__FPFPc_PFl_i" => process "PFPc_PFl_i" | |
1677 | ||
1678 | DECLP must be already initialised, usually non-empty. It won't be freed | |
3dc755fb FF |
1679 | on failure. |
1680 | ||
1681 | Note that g++ differs significantly from cfront and lucid style mangling | |
1682 | with regards to references to previously seen types. For example, given | |
1683 | the source fragment: | |
1684 | ||
1685 | class foo { | |
1686 | public: | |
1687 | foo::foo (int, foo &ia, int, foo &ib, int, foo &ic); | |
1688 | }; | |
1689 | ||
1690 | foo::foo (int, foo &ia, int, foo &ib, int, foo &ic) { ia = ib = ic; } | |
1691 | void foo (int, foo &ia, int, foo &ib, int, foo &ic) { ia = ib = ic; } | |
1692 | ||
1693 | g++ produces the names: | |
1694 | ||
1695 | __3fooiRT0iT2iT2 | |
1696 | foo__FiR3fooiT1iT1 | |
1697 | ||
1698 | while lcc (and presumably cfront as well) produces: | |
1699 | ||
1700 | foo__FiR3fooT1T2T1T2 | |
1701 | __ct__3fooFiR3fooT1T2T1T2 | |
1702 | ||
1703 | Note that g++ bases it's type numbers starting at zero and counts all | |
1704 | previously seen types, while lucid/cfront bases it's type numbers starting | |
1705 | at one and only considers types after it has seen the 'F' character | |
1706 | indicating the start of the function args. For lucid/cfront style, we | |
1707 | account for this difference by discarding any previously seen types when | |
1708 | we see the 'F' character, and subtracting one from the type number | |
1709 | reference. | |
1710 | ||
1711 | */ | |
dd3b648e RP |
1712 | |
1713 | static int | |
f9b5584c FF |
1714 | demangle_args (declp, type, work) |
1715 | string *declp; | |
dd3b648e | 1716 | const char **type; |
f536aa39 | 1717 | struct work_stuff *work; |
dd3b648e RP |
1718 | { |
1719 | string arg; | |
1720 | int need_comma = 0; | |
f9b5584c FF |
1721 | int r; |
1722 | int t; | |
1723 | const char *tem; | |
1724 | char temptype; | |
dd3b648e | 1725 | |
8f793aa5 | 1726 | if (PRINT_ARG_TYPES) |
f9b5584c FF |
1727 | { |
1728 | string_append (declp, "("); | |
1729 | if (**type == '\0') | |
1730 | { | |
1731 | string_append (declp, "void"); | |
1732 | } | |
1733 | } | |
dd3b648e | 1734 | |
55b3ef9a | 1735 | while (**type != '_' && **type != '\0' && **type != 'e') |
dd3b648e | 1736 | { |
f9b5584c | 1737 | if ((**type == 'N') || (**type == 'T')) |
dd3b648e | 1738 | { |
f9b5584c FF |
1739 | temptype = *(*type)++; |
1740 | ||
1741 | if (temptype == 'N') | |
1742 | { | |
1743 | if (!get_count (type, &r)) | |
1744 | { | |
1745 | return (0); | |
1746 | } | |
1747 | } | |
1748 | else | |
1749 | { | |
1750 | r = 1; | |
1751 | } | |
1752 | if (!get_count (type, &t)) | |
1753 | { | |
1754 | return (0); | |
1755 | } | |
3dc755fb | 1756 | if (LUCID_DEMANGLING || CFRONT_DEMANGLING) |
2dbde378 FF |
1757 | { |
1758 | t--; | |
1759 | } | |
91fef76b FF |
1760 | /* Validate the type index. Protect against illegal indices from |
1761 | malformed type strings. */ | |
1762 | if ((t < 0) || (t >= work -> ntypes)) | |
f9b5584c FF |
1763 | { |
1764 | return (0); | |
1765 | } | |
dd3b648e RP |
1766 | while (--r >= 0) |
1767 | { | |
f9b5584c | 1768 | tem = work -> typevec[t]; |
8f793aa5 | 1769 | if (need_comma && PRINT_ARG_TYPES) |
f9b5584c FF |
1770 | { |
1771 | string_append (declp, ", "); | |
1772 | } | |
f536aa39 | 1773 | if (!do_arg (&tem, &arg, work)) |
f9b5584c FF |
1774 | { |
1775 | return (0); | |
1776 | } | |
8f793aa5 | 1777 | if (PRINT_ARG_TYPES) |
f9b5584c FF |
1778 | { |
1779 | string_appends (declp, &arg); | |
1780 | } | |
dd3b648e RP |
1781 | string_delete (&arg); |
1782 | need_comma = 1; | |
1783 | } | |
1784 | } | |
1785 | else | |
1786 | { | |
8f793aa5 | 1787 | if (need_comma & PRINT_ARG_TYPES) |
f9b5584c FF |
1788 | { |
1789 | string_append (declp, ", "); | |
1790 | } | |
f536aa39 | 1791 | if (!do_arg (type, &arg, work)) |
f9b5584c FF |
1792 | { |
1793 | return (0); | |
1794 | } | |
8f793aa5 | 1795 | if (PRINT_ARG_TYPES) |
f9b5584c FF |
1796 | { |
1797 | string_appends (declp, &arg); | |
1798 | } | |
dd3b648e RP |
1799 | string_delete (&arg); |
1800 | need_comma = 1; | |
1801 | } | |
1802 | } | |
1803 | ||
55b3ef9a | 1804 | if (**type == 'e') |
dd3b648e | 1805 | { |
f9b5584c | 1806 | (*type)++; |
8f793aa5 | 1807 | if (PRINT_ARG_TYPES) |
dd3b648e RP |
1808 | { |
1809 | if (need_comma) | |
f9b5584c FF |
1810 | { |
1811 | string_append (declp, ","); | |
1812 | } | |
1813 | string_append (declp, "..."); | |
dd3b648e RP |
1814 | } |
1815 | } | |
1816 | ||
8f793aa5 | 1817 | if (PRINT_ARG_TYPES) |
f9b5584c FF |
1818 | { |
1819 | string_append (declp, ")"); | |
1820 | } | |
1821 | return (1); | |
dd3b648e RP |
1822 | } |
1823 | ||
1824 | static void | |
f9b5584c FF |
1825 | demangle_function_name (declp, mangled, work, scan) |
1826 | string *declp; | |
1827 | const char **mangled; | |
f536aa39 | 1828 | struct work_stuff *work; |
f9b5584c | 1829 | const char *scan; |
dd3b648e | 1830 | { |
f9b5584c FF |
1831 | int i; |
1832 | int len; | |
1833 | string type; | |
1834 | const char *tem; | |
1835 | ||
1836 | string_appendn (declp, (*mangled), scan - (*mangled)); | |
1837 | string_need (declp, 1); | |
1838 | *(declp -> p) = '\0'; | |
1839 | ||
1840 | /* Consume the function name, including the "__" separating the name | |
1841 | from the signature. We are guaranteed that SCAN points to the | |
1842 | separator. */ | |
1843 | ||
1844 | (*mangled) = scan + 2; | |
1845 | ||
3dc755fb | 1846 | if (LUCID_DEMANGLING || CFRONT_DEMANGLING) |
2dbde378 | 1847 | { |
f9b5584c | 1848 | |
2dbde378 FF |
1849 | /* See if we have an ARM style constructor or destructor operator. |
1850 | If so, then just record it, clear the decl, and return. | |
1851 | We can't build the actual constructor/destructor decl until later, | |
1852 | when we recover the class name from the signature. */ | |
f9b5584c | 1853 | |
2dbde378 FF |
1854 | if (strcmp (declp -> b, "__ct") == 0) |
1855 | { | |
1856 | work -> constructor = 1; | |
1857 | string_clear (declp); | |
1858 | return; | |
1859 | } | |
1860 | else if (strcmp (declp -> b, "__dt") == 0) | |
1861 | { | |
1862 | work -> destructor = 1; | |
1863 | string_clear (declp); | |
1864 | return; | |
1865 | } | |
f9b5584c FF |
1866 | } |
1867 | ||
f9b5584c FF |
1868 | if (declp->p - declp->b >= 3 |
1869 | && declp->b[0] == 'o' | |
1870 | && declp->b[1] == 'p' | |
3dc755fb | 1871 | && strchr (cplus_markers, declp->b[2]) != NULL) |
dd3b648e | 1872 | { |
dd3b648e | 1873 | /* see if it's an assignment expression */ |
f9b5584c FF |
1874 | if (declp->p - declp->b >= 10 /* op$assign_ */ |
1875 | && memcmp (declp->b + 3, "assign_", 7) == 0) | |
dd3b648e | 1876 | { |
f9b5584c | 1877 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) |
dd3b648e | 1878 | { |
f9b5584c | 1879 | len = declp->p - declp->b - 10; |
dd3b648e | 1880 | if (strlen (optable[i].in) == len |
f9b5584c | 1881 | && memcmp (optable[i].in, declp->b + 10, len) == 0) |
dd3b648e | 1882 | { |
f9b5584c FF |
1883 | string_clear (declp); |
1884 | string_append (declp, "operator"); | |
1885 | string_append (declp, optable[i].out); | |
1886 | string_append (declp, "="); | |
1887 | break; | |
dd3b648e RP |
1888 | } |
1889 | } | |
1890 | } | |
1891 | else | |
1892 | { | |
f9b5584c | 1893 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) |
dd3b648e | 1894 | { |
f9b5584c | 1895 | int len = declp->p - declp->b - 3; |
dd3b648e | 1896 | if (strlen (optable[i].in) == len |
f9b5584c | 1897 | && memcmp (optable[i].in, declp->b + 3, len) == 0) |
dd3b648e | 1898 | { |
f9b5584c FF |
1899 | string_clear (declp); |
1900 | string_append (declp, "operator"); | |
1901 | string_append (declp, optable[i].out); | |
1902 | break; | |
dd3b648e RP |
1903 | } |
1904 | } | |
1905 | } | |
dd3b648e | 1906 | } |
f9b5584c | 1907 | else if (declp->p - declp->b >= 5 && memcmp (declp->b, "type$", 5) == 0) |
dd3b648e RP |
1908 | { |
1909 | /* type conversion operator */ | |
f9b5584c | 1910 | tem = declp->b + 5; |
f536aa39 | 1911 | if (do_type (&tem, &type, work)) |
dd3b648e | 1912 | { |
f9b5584c FF |
1913 | string_clear (declp); |
1914 | string_append (declp, "operator "); | |
1915 | string_appends (declp, &type); | |
dd3b648e | 1916 | string_delete (&type); |
dd3b648e RP |
1917 | } |
1918 | } | |
f9b5584c | 1919 | else if (declp->b[2] == 'o' && declp->b[3] == 'p') |
572acbbe | 1920 | { |
f9b5584c | 1921 | /* ANSI. */ |
572acbbe | 1922 | /* type conversion operator. */ |
f9b5584c | 1923 | tem = declp->b + 4; |
f536aa39 | 1924 | if (do_type (&tem, &type, work)) |
572acbbe | 1925 | { |
f9b5584c FF |
1926 | string_clear (declp); |
1927 | string_append (declp, "operator "); | |
1928 | string_appends (declp, &type); | |
572acbbe | 1929 | string_delete (&type); |
572acbbe MT |
1930 | } |
1931 | } | |
f9b5584c FF |
1932 | else if (declp->b[0] == '_' && declp->b[1] == '_' |
1933 | && declp->b[2] >= 'a' && declp->b[2] <= 'z' | |
1934 | && declp->b[3] >= 'a' && declp->b[3] <= 'z') | |
572acbbe | 1935 | { |
f9b5584c | 1936 | if (declp->b[4] == '\0') |
572acbbe MT |
1937 | { |
1938 | /* Operator. */ | |
f9b5584c | 1939 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) |
572acbbe MT |
1940 | { |
1941 | if (strlen (optable[i].in) == 2 | |
f9b5584c | 1942 | && memcmp (optable[i].in, declp->b + 2, 2) == 0) |
572acbbe | 1943 | { |
f9b5584c FF |
1944 | string_clear (declp); |
1945 | string_append (declp, "operator"); | |
1946 | string_append (declp, optable[i].out); | |
1947 | break; | |
572acbbe MT |
1948 | } |
1949 | } | |
1950 | } | |
1951 | else | |
1952 | { | |
f9b5584c | 1953 | if (declp->b[2] == 'a' && declp->b[5] == '\0') |
572acbbe | 1954 | { |
f9b5584c FF |
1955 | /* Assignment. */ |
1956 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) | |
572acbbe | 1957 | { |
f9b5584c FF |
1958 | if (strlen (optable[i].in) == 3 |
1959 | && memcmp (optable[i].in, declp->b + 2, 3) == 0) | |
1960 | { | |
1961 | string_clear (declp); | |
1962 | string_append (declp, "operator"); | |
1963 | string_append (declp, optable[i].out); | |
1964 | break; | |
1965 | } | |
572acbbe MT |
1966 | } |
1967 | } | |
1968 | } | |
1969 | } | |
dd3b648e RP |
1970 | } |
1971 | ||
1972 | /* a mini string-handling package */ | |
1973 | ||
1974 | static void | |
1975 | string_need (s, n) | |
1976 | string *s; | |
1977 | int n; | |
1978 | { | |
f9b5584c FF |
1979 | int tem; |
1980 | ||
dd3b648e RP |
1981 | if (s->b == NULL) |
1982 | { | |
1983 | if (n < 32) | |
f9b5584c FF |
1984 | { |
1985 | n = 32; | |
1986 | } | |
dd3b648e RP |
1987 | s->p = s->b = (char *) xmalloc (n); |
1988 | s->e = s->b + n; | |
1989 | } | |
1990 | else if (s->e - s->p < n) | |
1991 | { | |
f9b5584c | 1992 | tem = s->p - s->b; |
dd3b648e RP |
1993 | n += tem; |
1994 | n *= 2; | |
1995 | s->b = (char *) xrealloc (s->b, n); | |
1996 | s->p = s->b + tem; | |
1997 | s->e = s->b + n; | |
1998 | } | |
1999 | } | |
2000 | ||
2001 | static void | |
2002 | string_delete (s) | |
2003 | string *s; | |
2004 | { | |
2005 | if (s->b != NULL) | |
2006 | { | |
2007 | free (s->b); | |
2008 | s->b = s->e = s->p = NULL; | |
2009 | } | |
2010 | } | |
2011 | ||
2012 | static void | |
2013 | string_init (s) | |
2014 | string *s; | |
2015 | { | |
2016 | s->b = s->p = s->e = NULL; | |
2017 | } | |
2018 | ||
2019 | static void | |
2020 | string_clear (s) | |
2021 | string *s; | |
2022 | { | |
2023 | s->p = s->b; | |
2024 | } | |
2025 | ||
51b57ded FF |
2026 | #if 0 |
2027 | ||
dd3b648e RP |
2028 | static int |
2029 | string_empty (s) | |
2030 | string *s; | |
2031 | { | |
f9b5584c | 2032 | return (s->b == s->p); |
dd3b648e RP |
2033 | } |
2034 | ||
51b57ded FF |
2035 | #endif |
2036 | ||
dd3b648e RP |
2037 | static void |
2038 | string_append (p, s) | |
2039 | string *p; | |
2040 | const char *s; | |
2041 | { | |
2042 | int n; | |
2043 | if (s == NULL || *s == '\0') | |
2044 | return; | |
2045 | n = strlen (s); | |
2046 | string_need (p, n); | |
2047 | memcpy (p->p, s, n); | |
2048 | p->p += n; | |
2049 | } | |
2050 | ||
2051 | static void | |
2052 | string_appends (p, s) | |
2053 | string *p, *s; | |
2054 | { | |
2055 | int n; | |
f9b5584c FF |
2056 | |
2057 | if (s->b != s->p) | |
2058 | { | |
2059 | n = s->p - s->b; | |
2060 | string_need (p, n); | |
2061 | memcpy (p->p, s->b, n); | |
2062 | p->p += n; | |
2063 | } | |
dd3b648e RP |
2064 | } |
2065 | ||
2066 | static void | |
2067 | string_appendn (p, s, n) | |
2068 | string *p; | |
2069 | const char *s; | |
2070 | int n; | |
2071 | { | |
f9b5584c FF |
2072 | if (n != 0) |
2073 | { | |
2074 | string_need (p, n); | |
2075 | memcpy (p->p, s, n); | |
2076 | p->p += n; | |
2077 | } | |
dd3b648e RP |
2078 | } |
2079 | ||
2080 | static void | |
2081 | string_prepend (p, s) | |
2082 | string *p; | |
2083 | const char *s; | |
2084 | { | |
f9b5584c FF |
2085 | if (s != NULL && *s != '\0') |
2086 | { | |
2087 | string_prependn (p, s, strlen (s)); | |
2088 | } | |
dd3b648e RP |
2089 | } |
2090 | ||
2091 | #if 0 | |
51b57ded | 2092 | |
dd3b648e RP |
2093 | static void |
2094 | string_prepends (p, s) | |
2095 | string *p, *s; | |
2096 | { | |
f9b5584c FF |
2097 | if (s->b != s->p) |
2098 | { | |
2099 | string_prependn (p, s->b, s->p - s->b); | |
2100 | } | |
dd3b648e | 2101 | } |
51b57ded | 2102 | |
dd3b648e RP |
2103 | #endif |
2104 | ||
2105 | static void | |
2106 | string_prependn (p, s, n) | |
2107 | string *p; | |
2108 | const char *s; | |
2109 | int n; | |
2110 | { | |
2111 | char *q; | |
2112 | ||
f9b5584c FF |
2113 | if (n != 0) |
2114 | { | |
2115 | string_need (p, n); | |
2116 | for (q = p->p - 1; q >= p->b; q--) | |
2117 | { | |
2118 | q[n] = q[0]; | |
2119 | } | |
2120 | memcpy (p->b, s, n); | |
2121 | p->p += n; | |
2122 | } | |
2123 | } | |
2124 | ||
2125 | /* To generate a standalone demangler program for testing purposes, just | |
2126 | compile and link this file with -DMAIN. When run, it demangles each | |
2127 | command line arg, or each stdin string, and prints the result on stdout. */ | |
2128 | ||
2129 | #ifdef MAIN | |
2130 | ||
2131 | static void | |
2132 | demangle_it (mangled_name) | |
2133 | char *mangled_name; | |
2134 | { | |
2135 | char *result; | |
2136 | ||
2137 | result = cplus_demangle (mangled_name, DMGL_PARAMS | DMGL_ANSI); | |
2138 | if (result == NULL) | |
2139 | { | |
2140 | printf ("%s\n", mangled_name); | |
2141 | } | |
2142 | else | |
2143 | { | |
2144 | printf ("%s\n", result); | |
2145 | free (result); | |
2146 | } | |
2147 | } | |
2148 | ||
2149 | PTR | |
2150 | xmalloc (size) | |
2151 | long size; | |
2152 | { | |
2153 | PTR newmem; | |
2154 | ||
2155 | if ((newmem = malloc ((int) size)) == NULL) | |
2156 | { | |
2157 | fprintf (stderr, "\nCan't allocate %u bytes\n", size); | |
2158 | exit (1); | |
2159 | } | |
2160 | return (newmem); | |
2161 | } | |
2162 | ||
2163 | PTR | |
2164 | xrealloc (oldmem, size) | |
2165 | PTR oldmem; | |
2166 | long size; | |
2167 | { | |
2168 | PTR newmem; | |
2169 | ||
2170 | if ((newmem = realloc ((char *) oldmem, (int) size)) == NULL) | |
2171 | { | |
2172 | fprintf (stderr, "\nCan't reallocate %u bytes\n", size); | |
2173 | exit (1); | |
2174 | } | |
2175 | return (newmem); | |
2176 | } | |
2177 | ||
2dbde378 FF |
2178 | #include <stdio.h> |
2179 | ||
2180 | enum demangling_styles current_demangling_style = gnu_demangling; | |
2181 | ||
f9b5584c FF |
2182 | main (argc, argv) |
2183 | int argc; | |
2184 | char **argv; | |
2185 | { | |
2186 | char mangled_name[128]; | |
2187 | char *result; | |
2dbde378 FF |
2188 | int c; |
2189 | extern char *optarg; | |
2190 | extern int optind; | |
2191 | ||
2192 | while ((c = getopt (argc, argv, "s:?")) != EOF) | |
f9b5584c | 2193 | { |
2dbde378 | 2194 | switch (c) |
f9b5584c | 2195 | { |
2dbde378 FF |
2196 | case '?': |
2197 | fprintf (stderr, "usage: demangle [-s style] [arg1 [arg2]] ...\n"); | |
2198 | fprintf (stderr, "style = { gnu, lucid, cfront }\n"); | |
2199 | fprintf (stderr, "reads args from stdin if none supplied\n"); | |
2200 | exit (0); | |
2201 | break; | |
2202 | case 's': | |
2203 | if (strcmp (optarg, "gnu") == 0) | |
2204 | { | |
2205 | current_demangling_style = gnu_demangling; | |
2206 | } | |
2207 | else if (strcmp (optarg, "lucid") == 0) | |
2208 | { | |
2209 | current_demangling_style = lucid_demangling; | |
2210 | } | |
2211 | else if (strcmp (optarg, "cfront") == 0) | |
2212 | { | |
2213 | current_demangling_style = cfront_demangling; | |
2214 | } | |
2215 | else | |
2216 | { | |
2217 | fprintf (stderr, "unknown demangling style `%s'\n", optarg); | |
2218 | exit (1); | |
2219 | } | |
2220 | break; | |
2221 | } | |
2222 | } | |
2223 | if (optind < argc) | |
2224 | { | |
2225 | for ( ; optind < argc; optind++) | |
2226 | { | |
2227 | demangle_it (argv[optind]); | |
f9b5584c FF |
2228 | } |
2229 | } | |
2230 | else | |
2231 | { | |
2232 | while (gets (mangled_name)) | |
2233 | { | |
2234 | demangle_it (mangled_name); | |
2235 | } | |
2236 | } | |
dd3b648e | 2237 | } |
f9b5584c | 2238 | |
2dbde378 | 2239 | #endif /* main */ |