Commit | Line | Data |
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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 * | |
38e9ed49 | 183 | mop_up PARAMS ((struct work_stuff *, string *, int)); |
f9b5584c | 184 | |
51b57ded | 185 | #if 0 |
f9b5584c | 186 | static int |
38e9ed49 | 187 | demangle_method_args PARAMS ((struct work_stuff *work, const char **, string *)); |
51b57ded | 188 | #endif |
f9b5584c FF |
189 | |
190 | static int | |
38e9ed49 | 191 | demangle_template PARAMS ((struct work_stuff *work, const char **, string *)); |
f9b5584c FF |
192 | |
193 | static int | |
38e9ed49 FF |
194 | demangle_qualified PARAMS ((struct work_stuff *, const char **, string *, |
195 | int)); | |
f9b5584c FF |
196 | |
197 | static int | |
38e9ed49 | 198 | demangle_class PARAMS ((struct work_stuff *, const char **, string *)); |
f9b5584c FF |
199 | |
200 | static int | |
38e9ed49 | 201 | demangle_fund_type PARAMS ((struct work_stuff *, const char **, string *)); |
f9b5584c FF |
202 | |
203 | static int | |
38e9ed49 | 204 | demangle_signature PARAMS ((struct work_stuff *, const char **, string *)); |
f9b5584c FF |
205 | |
206 | static int | |
38e9ed49 | 207 | demangle_prefix PARAMS ((struct work_stuff *, const char **, string *)); |
f9b5584c FF |
208 | |
209 | static int | |
38e9ed49 | 210 | gnu_special PARAMS ((struct work_stuff *, const char **, string *)); |
f9b5584c | 211 | |
3dc755fb | 212 | static int |
38e9ed49 | 213 | cfront_special PARAMS ((struct work_stuff *, const char **, string *)); |
3dc755fb | 214 | |
1ab3bf1b JG |
215 | static void |
216 | string_need PARAMS ((string *, int)); | |
217 | ||
218 | static void | |
219 | string_delete PARAMS ((string *)); | |
220 | ||
221 | static void | |
222 | string_init PARAMS ((string *)); | |
223 | ||
224 | static void | |
225 | string_clear PARAMS ((string *)); | |
226 | ||
51b57ded | 227 | #if 0 |
1ab3bf1b JG |
228 | static int |
229 | string_empty PARAMS ((string *)); | |
51b57ded | 230 | #endif |
1ab3bf1b JG |
231 | |
232 | static void | |
233 | string_append PARAMS ((string *, const char *)); | |
234 | ||
235 | static void | |
236 | string_appends PARAMS ((string *, string *)); | |
237 | ||
238 | static void | |
239 | string_appendn PARAMS ((string *, const char *, int)); | |
240 | ||
241 | static void | |
242 | string_prepend PARAMS ((string *, const char *)); | |
243 | ||
244 | static void | |
245 | string_prependn PARAMS ((string *, const char *, int)); | |
246 | ||
247 | static int | |
248 | get_count PARAMS ((const char **, int *)); | |
249 | ||
1c92ca6f FF |
250 | static int |
251 | consume_count PARAMS ((const char **)); | |
252 | ||
1ab3bf1b | 253 | static int |
38e9ed49 | 254 | demangle_args PARAMS ((struct work_stuff *, const char **, string *)); |
1ab3bf1b JG |
255 | |
256 | static int | |
38e9ed49 | 257 | do_type PARAMS ((struct work_stuff *, const char **, string *)); |
1ab3bf1b JG |
258 | |
259 | static int | |
38e9ed49 | 260 | do_arg PARAMS ((struct work_stuff *, const char **, string *)); |
1ab3bf1b JG |
261 | |
262 | static void | |
38e9ed49 | 263 | demangle_function_name PARAMS ((struct work_stuff *, const char **, string *, |
f9b5584c | 264 | const char *)); |
1ab3bf1b JG |
265 | |
266 | static void | |
38e9ed49 | 267 | remember_type PARAMS ((struct work_stuff *, const char *, int)); |
1ab3bf1b | 268 | |
3dc755fb FF |
269 | static void |
270 | forget_types PARAMS ((struct work_stuff *)); | |
271 | ||
dd3b648e | 272 | #if 0 |
1ab3bf1b JG |
273 | static void |
274 | string_prepends PARAMS ((string *, string *)); | |
dd3b648e RP |
275 | #endif |
276 | ||
1c92ca6f FF |
277 | /* Translate count to integer, consuming tokens in the process. |
278 | Conversion terminates on the first non-digit character. */ | |
279 | ||
280 | static int | |
281 | consume_count (type) | |
282 | const char **type; | |
283 | { | |
284 | int count = 0; | |
285 | ||
286 | do | |
287 | { | |
288 | count *= 10; | |
289 | count += **type - '0'; | |
290 | (*type)++; | |
291 | } while (isdigit (**type)); | |
292 | return (count); | |
293 | } | |
1ab3bf1b | 294 | |
55838914 | 295 | /* Takes operator name as e.g. "++" and returns mangled |
572acbbe MT |
296 | operator name (e.g. "postincrement_expr"), or NULL if not found. |
297 | ||
8f793aa5 FF |
298 | If OPTIONS & DMGL_ANSI == 1, return the ANSI name; |
299 | if OPTIONS & DMGL_ANSI == 0, return the old GNU name. */ | |
300 | ||
55838914 | 301 | char * |
8f793aa5 | 302 | cplus_mangle_opname (opname, options) |
55838914 | 303 | char *opname; |
8f793aa5 | 304 | int options; |
55838914 | 305 | { |
f9b5584c FF |
306 | int i; |
307 | int len; | |
55838914 | 308 | |
f9b5584c | 309 | len = strlen (opname); |
8f793aa5 | 310 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) |
55838914 JK |
311 | { |
312 | if (strlen (optable[i].out) == len | |
8f793aa5 | 313 | && (options & DMGL_ANSI) == (optable[i].flags & DMGL_ANSI) |
55838914 | 314 | && memcmp (optable[i].out, opname, len) == 0) |
f9b5584c | 315 | return ((char *)optable[i].in); |
55838914 | 316 | } |
f9b5584c | 317 | return (0); |
55838914 JK |
318 | } |
319 | ||
8f793aa5 FF |
320 | /* char *cplus_demangle (const char *name, int options) |
321 | ||
322 | If NAME is a mangled function name produced by GNU C++, then | |
323 | a pointer to a malloced string giving a C++ representation | |
324 | of the name will be returned; otherwise NULL will be returned. | |
325 | It is the caller's responsibility to free the string which | |
326 | is returned. | |
327 | ||
328 | The OPTIONS arg may contain one or more of the following bits: | |
329 | ||
330 | DMGL_ANSI ANSI qualifiers such as `const' and `void' are | |
331 | included. | |
332 | DMGL_PARAMS Function parameters are included. | |
333 | ||
334 | For example, | |
335 | ||
336 | cplus_demangle ("foo__1Ai", DMGL_PARAMS) => "A::foo(int)" | |
337 | cplus_demangle ("foo__1Ai", DMGL_PARAMS | DMGL_ANSI) => "A::foo(int)" | |
338 | cplus_demangle ("foo__1Ai", 0) => "A::foo" | |
339 | ||
340 | cplus_demangle ("foo__1Afe", DMGL_PARAMS) => "A::foo(float,...)" | |
341 | cplus_demangle ("foo__1Afe", DMGL_PARAMS | DMGL_ANSI)=> "A::foo(float,...)" | |
342 | cplus_demangle ("foo__1Afe", 0) => "A::foo" | |
f9b5584c FF |
343 | |
344 | Note that any leading underscores, or other such characters prepended by | |
345 | the compilation system, are presumed to have already been stripped from | |
346 | TYPE. */ | |
8f793aa5 | 347 | |
dd3b648e | 348 | char * |
f9b5584c FF |
349 | cplus_demangle (mangled, options) |
350 | const char *mangled; | |
8f793aa5 | 351 | int options; |
dd3b648e RP |
352 | { |
353 | string decl; | |
dd3b648e | 354 | int success = 0; |
f536aa39 | 355 | struct work_stuff work[1]; |
f9b5584c FF |
356 | char *demangled = NULL; |
357 | ||
358 | if ((mangled != NULL) && (*mangled != '\0')) | |
359 | { | |
4ed3a9ea | 360 | memset ((char *) work, 0, sizeof (work)); |
f9b5584c FF |
361 | work -> options = options; |
362 | ||
363 | string_init (&decl); | |
3dc755fb FF |
364 | |
365 | /* First check to see if gnu style demangling is active and if the | |
366 | string to be demangled contains a CPLUS_MARKER. If so, attempt to | |
367 | recognize one of the gnu special forms rather than looking for a | |
368 | standard prefix. In particular, don't worry about whether there | |
369 | is a "__" string in the mangled string. Consider "_$_5__foo" for | |
370 | example. */ | |
371 | ||
372 | if ((AUTO_DEMANGLING || GNU_DEMANGLING) | |
373 | && (strpbrk (mangled, cplus_markers)) != NULL) | |
374 | { | |
38e9ed49 | 375 | success = gnu_special (work, &mangled, &decl); |
3dc755fb FF |
376 | } |
377 | else | |
378 | { | |
38e9ed49 | 379 | success = demangle_prefix (work, &mangled, &decl); |
3dc755fb | 380 | } |
f9b5584c FF |
381 | if (success && (*mangled != '\0')) |
382 | { | |
38e9ed49 | 383 | success = demangle_signature (work, &mangled, &decl); |
f9b5584c | 384 | } |
38e9ed49 | 385 | demangled = mop_up (work, &decl, success); |
f9b5584c FF |
386 | } |
387 | return (demangled); | |
388 | } | |
389 | ||
390 | static char * | |
38e9ed49 | 391 | mop_up (work, declp, success) |
f9b5584c | 392 | struct work_stuff *work; |
38e9ed49 | 393 | string *declp; |
f9b5584c FF |
394 | int success; |
395 | { | |
396 | int i; | |
397 | char *demangled = NULL; | |
398 | ||
399 | /* Discard the remembered types, if any. */ | |
400 | ||
3dc755fb | 401 | forget_types (work); |
f9b5584c FF |
402 | if (work -> typevec != NULL) |
403 | { | |
404 | free ((char *) work -> typevec); | |
405 | } | |
406 | ||
407 | /* If demangling was successful, ensure that the demangled string is null | |
408 | terminated and return it. Otherwise, free the demangling decl. */ | |
409 | ||
410 | if (!success) | |
411 | { | |
412 | string_delete (declp); | |
413 | } | |
414 | else | |
415 | { | |
416 | string_appendn (declp, "", 1); | |
417 | demangled = declp -> b; | |
418 | } | |
419 | return (demangled); | |
420 | } | |
421 | ||
422 | /* | |
423 | ||
424 | LOCAL FUNCTION | |
425 | ||
426 | demangle_signature -- demangle the signature part of a mangled name | |
427 | ||
428 | SYNOPSIS | |
429 | ||
430 | static int | |
38e9ed49 FF |
431 | demangle_signature (struct work_stuff *work, const char **mangled, |
432 | string *declp); | |
f9b5584c FF |
433 | |
434 | DESCRIPTION | |
435 | ||
436 | Consume and demangle the signature portion of the mangled name. | |
437 | ||
438 | DECLP is the string where demangled output is being built. At | |
439 | entry it contains the demangled root name from the mangled name | |
440 | prefix. I.E. either a demangled operator name or the root function | |
441 | name. In some special cases, it may contain nothing. | |
442 | ||
443 | *MANGLED points to the current unconsumed location in the mangled | |
444 | name. As tokens are consumed and demangling is performed, the | |
445 | pointer is updated to continuously point at the next token to | |
446 | be consumed. | |
447 | ||
448 | Demangling GNU style mangled names is nasty because there is no | |
449 | explicit token that marks the start of the outermost function | |
450 | argument list. | |
451 | */ | |
452 | ||
453 | static int | |
38e9ed49 | 454 | demangle_signature (work, mangled, declp) |
f9b5584c | 455 | struct work_stuff *work; |
38e9ed49 FF |
456 | const char **mangled; |
457 | string *declp; | |
f9b5584c FF |
458 | { |
459 | int success = 1; | |
460 | int func_done = 0; | |
f9b5584c | 461 | int expect_func = 0; |
38e9ed49 | 462 | const char *oldmangled; |
f536aa39 | 463 | |
f9b5584c | 464 | while (success && (**mangled != '\0')) |
dd3b648e | 465 | { |
f9b5584c | 466 | switch (**mangled) |
dd3b648e | 467 | { |
f9b5584c | 468 | case 'Q': |
38e9ed49 FF |
469 | oldmangled = *mangled; |
470 | success = demangle_qualified (work, mangled, declp, 1); | |
471 | if (success) | |
472 | { | |
473 | remember_type (work, oldmangled, *mangled - oldmangled); | |
474 | } | |
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': | |
38e9ed49 FF |
495 | oldmangled = *mangled; |
496 | success = demangle_class (work, mangled, declp); | |
f9b5584c FF |
497 | if (success) |
498 | { | |
38e9ed49 | 499 | remember_type (work, oldmangled, *mangled - oldmangled); |
f9b5584c | 500 | } |
3dc755fb | 501 | if (AUTO_DEMANGLING || GNU_DEMANGLING) |
2dbde378 FF |
502 | { |
503 | expect_func = 1; | |
504 | } | |
f9b5584c FF |
505 | break; |
506 | ||
507 | case 'F': | |
508 | /* Function */ | |
509 | /* ARM style demangling includes a specific 'F' character after | |
510 | the class name. For GNU style, it is just implied. So we can | |
511 | safely just consume any 'F' at this point and be compatible | |
512 | with either style. */ | |
3dc755fb | 513 | |
f9b5584c FF |
514 | func_done = 1; |
515 | (*mangled)++; | |
3dc755fb FF |
516 | |
517 | /* For lucid/cfront style we have to forget any types we might | |
518 | have remembered up to this point, since they were not argument | |
519 | types. GNU style considers all types seen as available for | |
520 | back references. See comment in demangle_args() */ | |
521 | ||
522 | if (LUCID_DEMANGLING || CFRONT_DEMANGLING) | |
523 | { | |
524 | forget_types (work); | |
525 | } | |
38e9ed49 | 526 | success = demangle_args (work, mangled, declp); |
f9b5584c FF |
527 | break; |
528 | ||
529 | case 't': | |
530 | /* Template */ | |
38e9ed49 | 531 | success = demangle_template (work, mangled, declp); |
f9b5584c FF |
532 | break; |
533 | ||
7fd31a84 FF |
534 | case '_': |
535 | /* At the outermost level, we cannot have a return type specified, | |
536 | so if we run into another '_' at this point we are dealing with | |
537 | a mangled name that is either bogus, or has been mangled by | |
538 | some algorithm we don't know how to deal with. So just | |
539 | reject the entire demangling. */ | |
540 | success = 0; | |
541 | break; | |
542 | ||
f9b5584c | 543 | default: |
3dc755fb | 544 | if (AUTO_DEMANGLING || GNU_DEMANGLING) |
2dbde378 FF |
545 | { |
546 | /* Assume we have stumbled onto the first outermost function | |
547 | argument token, and start processing args. */ | |
548 | func_done = 1; | |
38e9ed49 | 549 | success = demangle_args (work, mangled, declp); |
2dbde378 FF |
550 | } |
551 | else | |
552 | { | |
553 | /* Non-GNU demanglers use a specific token to mark the start | |
554 | of the outermost function argument tokens. Typically 'F', | |
555 | for ARM-demangling, for example. So if we find something | |
556 | we are not prepared for, it must be an error. */ | |
557 | success = 0; | |
558 | } | |
f9b5584c | 559 | break; |
dd3b648e | 560 | } |
3dc755fb | 561 | if (AUTO_DEMANGLING || GNU_DEMANGLING) |
dd3b648e | 562 | { |
2dbde378 FF |
563 | if (success && expect_func) |
564 | { | |
565 | func_done = 1; | |
38e9ed49 | 566 | success = demangle_args (work, mangled, declp); |
2dbde378 | 567 | } |
dd3b648e | 568 | } |
f9b5584c FF |
569 | } |
570 | if (success && !func_done) | |
571 | { | |
3dc755fb | 572 | if (AUTO_DEMANGLING || GNU_DEMANGLING) |
2dbde378 FF |
573 | { |
574 | /* With GNU style demangling, bar__3foo is 'foo::bar(void)', and | |
575 | bar__3fooi is 'foo::bar(int)'. We get here when we find the | |
576 | first case, and need to ensure that the '(void)' gets added to | |
577 | the current declp. Note that with ARM, the first case | |
578 | represents the name of a static data member 'foo::bar', | |
579 | which is in the current declp, so we leave it alone. */ | |
38e9ed49 | 580 | success = demangle_args (work, mangled, declp); |
2dbde378 | 581 | } |
dd3b648e | 582 | } |
f9b5584c FF |
583 | if (success && work -> static_type && PRINT_ARG_TYPES) |
584 | { | |
585 | string_append (declp, " static"); | |
586 | } | |
587 | if (success && work -> const_type && PRINT_ARG_TYPES) | |
588 | { | |
589 | string_append (declp, " const"); | |
590 | } | |
591 | return (success); | |
592 | } | |
dd3b648e | 593 | |
f9b5584c | 594 | #if 0 |
dd3b648e | 595 | |
f9b5584c | 596 | static int |
38e9ed49 | 597 | demangle_method_args (work, mangled, declp) |
f9b5584c | 598 | struct work_stuff *work; |
38e9ed49 FF |
599 | const char **mangled; |
600 | string *declp; | |
f9b5584c FF |
601 | { |
602 | int success = 0; | |
603 | ||
604 | if (work -> static_type) | |
4c53d9ca | 605 | { |
f9b5584c FF |
606 | string_append (declp, *mangled + 1); |
607 | *mangled += strlen (*mangled); | |
608 | success = 1; | |
4c53d9ca | 609 | } |
f9b5584c | 610 | else |
dd3b648e | 611 | { |
38e9ed49 | 612 | success = demangle_args (work, mangled, declp); |
f9b5584c FF |
613 | } |
614 | return (success); | |
615 | } | |
616 | ||
617 | #endif | |
618 | ||
619 | static int | |
38e9ed49 | 620 | demangle_template (work, mangled, declp) |
f9b5584c | 621 | struct work_stuff *work; |
38e9ed49 FF |
622 | const char **mangled; |
623 | string *declp; | |
f9b5584c FF |
624 | { |
625 | int i; | |
f9b5584c FF |
626 | string tname; |
627 | string trawname; | |
628 | int is_pointer; | |
629 | int is_real; | |
630 | int is_integral; | |
631 | int r; | |
632 | int need_comma = 0; | |
633 | int success = 0; | |
634 | int done; | |
635 | const char *old_p; | |
636 | int symbol_len; | |
637 | string temp; | |
638 | ||
639 | (*mangled)++; | |
640 | string_init (&tname); | |
641 | string_init (&trawname); | |
642 | /* get template name */ | |
643 | if (!get_count (mangled, &r)) | |
644 | { | |
645 | return (0); | |
646 | } | |
647 | string_appendn (&tname, *mangled, r); | |
648 | string_appendn (&trawname, *mangled, r); | |
649 | string_appendn (&trawname, "", 1); | |
650 | *mangled += r; | |
651 | string_append (&tname, "<"); | |
652 | /* get size of template parameter list */ | |
653 | if (!get_count (mangled, &r)) | |
654 | { | |
655 | return (0); | |
656 | } | |
657 | for (i = 0; i < r; i++) | |
658 | { | |
659 | if (need_comma) | |
dd3b648e | 660 | { |
f9b5584c FF |
661 | string_append (&tname, ", "); |
662 | } | |
663 | /* Z for type parameters */ | |
664 | if (**mangled == 'Z') | |
665 | { | |
666 | (*mangled)++; | |
38e9ed49 | 667 | success = do_type (work, mangled, &temp); |
f9b5584c FF |
668 | string_appendn (&temp, "", 1); |
669 | if (success) | |
572acbbe | 670 | { |
f9b5584c FF |
671 | string_append (&tname, temp.b); |
672 | } | |
673 | string_delete(&temp); | |
674 | if (!success) | |
675 | { | |
676 | break; | |
572acbbe | 677 | } |
572acbbe MT |
678 | } |
679 | else | |
680 | { | |
f9b5584c FF |
681 | /* otherwise, value parameter */ |
682 | old_p = *mangled; | |
683 | is_pointer = 0; | |
684 | is_real = 0; | |
685 | is_integral = 0; | |
686 | done = 0; | |
38e9ed49 | 687 | success = do_type (work, mangled, &temp); |
f9b5584c FF |
688 | string_appendn (&temp, "", 1); |
689 | if (success) | |
690 | { | |
691 | string_append (&tname, temp.b); | |
692 | } | |
693 | string_delete(&temp); | |
694 | if (!success) | |
695 | { | |
696 | break; | |
697 | } | |
698 | string_append (&tname, "="); | |
699 | while (*old_p && !done) | |
700 | { | |
701 | switch (*old_p) | |
702 | { | |
703 | case 'P': | |
704 | case 'R': | |
51b57ded FF |
705 | done = is_pointer = 1; |
706 | break; | |
f9b5584c FF |
707 | case 'C': /* const */ |
708 | case 'S': /* explicitly signed [char] */ | |
709 | case 'U': /* unsigned */ | |
710 | case 'V': /* volatile */ | |
711 | case 'F': /* function */ | |
712 | case 'M': /* member function */ | |
713 | case 'O': /* ??? */ | |
51b57ded FF |
714 | old_p++; |
715 | continue; | |
f9b5584c FF |
716 | case 'Q': /* repetition of following */ |
717 | case 'T': /* remembered type */ | |
51b57ded FF |
718 | abort (); |
719 | break; | |
f9b5584c | 720 | case 'v': /* void */ |
51b57ded FF |
721 | abort (); |
722 | break; | |
f9b5584c FF |
723 | case 'x': /* long long */ |
724 | case 'l': /* long */ | |
725 | case 'i': /* int */ | |
726 | case 's': /* short */ | |
727 | case 'c': /* char */ | |
51b57ded FF |
728 | done = is_integral = 1; |
729 | break; | |
f9b5584c FF |
730 | case 'r': /* long double */ |
731 | case 'd': /* double */ | |
732 | case 'f': /* float */ | |
51b57ded FF |
733 | done = is_real = 1; |
734 | break; | |
f9b5584c | 735 | default: |
51b57ded | 736 | abort (); |
f9b5584c FF |
737 | } |
738 | } | |
739 | if (is_integral) | |
740 | { | |
741 | if (**mangled == 'm') | |
742 | { | |
743 | string_appendn (&tname, "-", 1); | |
744 | (*mangled)++; | |
745 | } | |
746 | while (isdigit (**mangled)) | |
747 | { | |
748 | string_appendn (&tname, *mangled, 1); | |
749 | (*mangled)++; | |
750 | } | |
751 | } | |
752 | else if (is_real) | |
753 | { | |
754 | if (**mangled == 'm') | |
755 | { | |
756 | string_appendn (&tname, "-", 1); | |
757 | (*mangled)++; | |
758 | } | |
759 | while (isdigit (**mangled)) | |
760 | { | |
761 | string_appendn (&tname, *mangled, 1); | |
762 | (*mangled)++; | |
763 | } | |
764 | if (**mangled == '.') /* fraction */ | |
765 | { | |
766 | string_appendn (&tname, ".", 1); | |
767 | (*mangled)++; | |
768 | while (isdigit (**mangled)) | |
769 | { | |
770 | string_appendn (&tname, *mangled, 1); | |
771 | (*mangled)++; | |
772 | } | |
773 | } | |
774 | if (**mangled == 'e') /* exponent */ | |
775 | { | |
776 | string_appendn (&tname, "e", 1); | |
777 | (*mangled)++; | |
778 | while (isdigit (**mangled)) | |
779 | { | |
780 | string_appendn (&tname, *mangled, 1); | |
781 | (*mangled)++; | |
782 | } | |
783 | } | |
784 | } | |
785 | else if (is_pointer) | |
786 | { | |
787 | if (!get_count (mangled, &symbol_len)) | |
788 | { | |
789 | success = 0; | |
790 | break; | |
791 | } | |
792 | string_appendn (&tname, *mangled, symbol_len); | |
793 | *mangled += symbol_len; | |
794 | } | |
dd3b648e | 795 | } |
f9b5584c FF |
796 | need_comma = 1; |
797 | } | |
798 | string_append (&tname, ">::"); | |
799 | if (work -> destructor) | |
800 | { | |
801 | string_append (&tname, "~"); | |
802 | } | |
803 | if (work -> constructor || work -> destructor) | |
804 | { | |
805 | string_append (&tname, trawname.b); | |
806 | } | |
807 | string_delete(&trawname); | |
808 | ||
809 | if (!success) | |
810 | { | |
811 | string_delete(&tname); | |
dd3b648e RP |
812 | } |
813 | else | |
814 | { | |
f9b5584c FF |
815 | string_prepend (declp, tname.b); |
816 | string_delete (&tname); | |
817 | ||
818 | if (work -> static_type) | |
819 | { | |
820 | string_append (declp, *mangled + 1); | |
821 | *mangled += strlen (*mangled); | |
822 | success = 1; | |
823 | } | |
824 | else | |
825 | { | |
38e9ed49 | 826 | success = demangle_args (work, mangled, declp); |
f9b5584c | 827 | } |
dd3b648e | 828 | } |
51b57ded | 829 | return (success); |
f9b5584c | 830 | } |
dd3b648e | 831 | |
f9b5584c FF |
832 | /* |
833 | ||
834 | LOCAL FUNCTION | |
835 | ||
836 | demangle_class -- demangle a mangled class sequence | |
837 | ||
838 | SYNOPSIS | |
839 | ||
840 | static int | |
38e9ed49 FF |
841 | demangle_class (struct work_stuff *work, const char **mangled, |
842 | strint *declp) | |
f9b5584c FF |
843 | |
844 | DESCRIPTION | |
845 | ||
846 | DECLP points to the buffer into which demangling is being done. | |
847 | ||
848 | *MANGLED points to the current token to be demangled. On input, | |
849 | it points to a mangled class (I.E. "3foo", "13verylongclass", etc.) | |
850 | On exit, it points to the next token after the mangled class on | |
851 | success, or the first unconsumed token on failure. | |
852 | ||
853 | If the CONSTRUCTOR or DESTRUCTOR flags are set in WORK, then | |
854 | we are demangling a constructor or destructor. In this case | |
855 | we prepend "class::class" or "class::~class" to DECLP. | |
856 | ||
857 | Otherwise, we prepend "class::" to the current DECLP. | |
858 | ||
859 | Reset the constructor/destructor flags once they have been | |
860 | "consumed". This allows demangle_class to be called later during | |
861 | the same demangling, to do normal class demangling. | |
862 | ||
863 | Returns 1 if demangling is successful, 0 otherwise. | |
864 | ||
865 | */ | |
866 | ||
867 | static int | |
38e9ed49 | 868 | demangle_class (work, mangled, declp) |
f9b5584c | 869 | struct work_stuff *work; |
38e9ed49 FF |
870 | const char **mangled; |
871 | string *declp; | |
f9b5584c FF |
872 | { |
873 | int n; | |
874 | int success = 0; | |
875 | ||
1c92ca6f | 876 | n = consume_count (mangled); |
f9b5584c FF |
877 | if (strlen (*mangled) >= n) |
878 | { | |
879 | if (work -> constructor || work -> destructor) | |
f536aa39 | 880 | { |
f9b5584c FF |
881 | string_prependn (declp, *mangled, n); |
882 | if (work -> destructor) | |
f536aa39 | 883 | { |
f9b5584c | 884 | string_prepend (declp, "~"); |
f536aa39 | 885 | } |
f9b5584c | 886 | work -> constructor = work -> destructor = 0; |
dd3b648e | 887 | } |
f9b5584c FF |
888 | string_prepend (declp, "::"); |
889 | string_prependn (declp, *mangled, n); | |
890 | *mangled += n; | |
891 | success = 1; | |
892 | } | |
893 | return (success); | |
894 | } | |
895 | ||
896 | /* | |
897 | ||
898 | LOCAL FUNCTION | |
899 | ||
900 | demangle_prefix -- consume the mangled name prefix and find signature | |
901 | ||
902 | SYNOPSIS | |
903 | ||
904 | static int | |
38e9ed49 FF |
905 | demangle_prefix (struct work_stuff *work, const char **mangled, |
906 | string *declp); | |
f9b5584c FF |
907 | |
908 | DESCRIPTION | |
909 | ||
910 | Consume and demangle the prefix of the mangled name. | |
911 | ||
912 | DECLP points to the string buffer into which demangled output is | |
913 | placed. On entry, the buffer is empty. On exit it contains | |
914 | the root function name, the demangled operator name, or in some | |
915 | special cases either nothing or the completely demangled result. | |
916 | ||
917 | MANGLED points to the current pointer into the mangled name. As each | |
918 | token of the mangled name is consumed, it is updated. Upon entry | |
919 | the current mangled name pointer points to the first character of | |
920 | the mangled name. Upon exit, it should point to the first character | |
921 | of the signature if demangling was successful, or to the first | |
922 | unconsumed character if demangling of the prefix was unsuccessful. | |
923 | ||
924 | Returns 1 on success, 0 otherwise. | |
925 | */ | |
926 | ||
927 | static int | |
38e9ed49 | 928 | demangle_prefix (work, mangled, declp) |
f9b5584c | 929 | struct work_stuff *work; |
38e9ed49 FF |
930 | const char **mangled; |
931 | string *declp; | |
f9b5584c FF |
932 | { |
933 | int success = 1; | |
934 | const char *scan; | |
3dc755fb | 935 | int i; |
f9b5584c | 936 | |
2dbde378 | 937 | scan = strstr (*mangled, "__"); |
3dc755fb FF |
938 | |
939 | if (scan != NULL) | |
f9b5584c | 940 | { |
3dc755fb FF |
941 | /* We found a sequence of two or more '_', ensure that we start at |
942 | the last pair in the sequence. */ | |
943 | i = strspn (scan, "_"); | |
944 | if (i > 2) | |
2dbde378 | 945 | { |
3dc755fb | 946 | scan += (i - 2); |
2dbde378 | 947 | } |
f9b5584c | 948 | } |
3dc755fb FF |
949 | |
950 | if (scan == NULL) | |
951 | { | |
952 | success = 0; | |
953 | } | |
f9b5584c FF |
954 | else if (work -> static_type) |
955 | { | |
956 | if (!isdigit (scan[0]) && (scan[0] != 't')) | |
dd3b648e | 957 | { |
f9b5584c | 958 | success = 0; |
dd3b648e | 959 | } |
f9b5584c FF |
960 | } |
961 | else if ((scan == *mangled) && (isdigit (scan[2]) || (scan[2] == 'Q'))) | |
962 | { | |
963 | /* A GNU style constructor starts with "__<digit>" or "__Q". */ | |
964 | work -> constructor = 1; | |
965 | *mangled = scan + 2; | |
966 | } | |
967 | else if ((scan == *mangled) && !isdigit (scan[2]) && (scan[2] != 't')) | |
968 | { | |
969 | /* Mangled name starts with "__". Skip over any leading '_' characters, | |
970 | then find the next "__" that separates the prefix from the signature. | |
971 | */ | |
3dc755fb | 972 | if (!(CFRONT_DEMANGLING || LUCID_DEMANGLING) |
38e9ed49 | 973 | || (cfront_special (work, mangled, declp) == 0)) |
dd3b648e | 974 | { |
3dc755fb FF |
975 | while (*scan == '_') |
976 | { | |
977 | scan++; | |
978 | } | |
979 | if ((scan = strstr (scan, "__")) == NULL || (*(scan + 2) == '\0')) | |
980 | { | |
981 | /* No separator (I.E. "__not_mangled"), or empty signature | |
982 | (I.E. "__not_mangled_either__") */ | |
983 | success = 0; | |
984 | } | |
985 | else | |
986 | { | |
38e9ed49 | 987 | demangle_function_name (work, mangled, declp, scan); |
3dc755fb | 988 | } |
4c53d9ca | 989 | } |
f9b5584c FF |
990 | } |
991 | else if (*(scan + 2) != '\0') | |
992 | { | |
993 | /* Mangled name does not start with "__" but does have one somewhere | |
994 | in there with non empty stuff after it. Looks like a global | |
995 | function name. */ | |
38e9ed49 | 996 | demangle_function_name (work, mangled, declp, scan); |
f9b5584c FF |
997 | } |
998 | else | |
999 | { | |
1000 | /* Doesn't look like a mangled name */ | |
1001 | success = 0; | |
1002 | } | |
1003 | return (success); | |
1004 | } | |
4c53d9ca | 1005 | |
1c92ca6f FF |
1006 | /* |
1007 | ||
1008 | LOCAL FUNCTION | |
1009 | ||
1010 | gnu_special -- special handling of gnu mangled strings | |
1011 | ||
1012 | SYNOPSIS | |
1013 | ||
1014 | static int | |
38e9ed49 FF |
1015 | gnu_special (struct work_stuff *work, const char **mangled, |
1016 | string *declp); | |
1c92ca6f FF |
1017 | |
1018 | ||
1019 | DESCRIPTION | |
1020 | ||
1021 | Process some special GNU style mangling forms that don't fit | |
1022 | the normal pattern. For example: | |
1023 | ||
1024 | _$_3foo (destructor for class foo) | |
3dc755fb FF |
1025 | _vt$foo (foo virtual table) |
1026 | _vt$foo$bar (foo::bar virtual table) | |
1c92ca6f FF |
1027 | _3foo$varname (static data member) |
1028 | */ | |
1029 | ||
f9b5584c | 1030 | static int |
38e9ed49 | 1031 | gnu_special (work, mangled, declp) |
f9b5584c | 1032 | struct work_stuff *work; |
38e9ed49 FF |
1033 | const char **mangled; |
1034 | string *declp; | |
f9b5584c FF |
1035 | { |
1036 | int n; | |
1037 | int success = 1; | |
1038 | const char *p; | |
1039 | ||
1040 | if ((*mangled)[0] == '_' | |
3dc755fb | 1041 | && strchr (cplus_markers, (*mangled)[1]) != NULL |
f9b5584c FF |
1042 | && (*mangled)[2] == '_') |
1043 | { | |
1044 | /* Found a GNU style destructor, get past "_<CPLUS_MARKER>_" */ | |
1045 | (*mangled) += 3; | |
1046 | work -> destructor = 1; | |
1047 | } | |
f9b5584c FF |
1048 | else if ((*mangled)[0] == '_' |
1049 | && (*mangled)[1] == 'v' | |
1050 | && (*mangled)[2] == 't' | |
3dc755fb | 1051 | && strchr (cplus_markers, (*mangled)[3]) != NULL) |
dd3b648e | 1052 | { |
f9b5584c FF |
1053 | /* Found a GNU style virtual table, get past "_vt<CPLUS_MARKER>" |
1054 | and create the decl. Note that we consume the entire mangled | |
1055 | input string, which means that demangle_signature has no work | |
1056 | to do. */ | |
1057 | (*mangled) += 4; | |
3dc755fb FF |
1058 | while (**mangled != '\0') |
1059 | { | |
1060 | n = strcspn (*mangled, cplus_markers); | |
1061 | string_appendn (declp, *mangled, n); | |
1062 | (*mangled) += n; | |
1063 | if (**mangled != '\0') | |
1064 | { | |
1065 | string_append (declp, "::"); | |
1066 | (*mangled)++; | |
1067 | } | |
1068 | } | |
f9b5584c | 1069 | string_append (declp, " virtual table"); |
dd3b648e | 1070 | } |
1c92ca6f FF |
1071 | else if ((*mangled)[0] == '_' |
1072 | && isdigit ((*mangled)[1]) | |
3dc755fb | 1073 | && (p = strpbrk (*mangled, cplus_markers)) != NULL) |
1c92ca6f FF |
1074 | { |
1075 | /* static data member, "_3foo$varname" for example */ | |
1076 | (*mangled)++; | |
1077 | p++; | |
1078 | n = consume_count (mangled); | |
1079 | string_appendn (declp, *mangled, n); | |
1080 | string_append (declp, "::"); | |
1081 | n = strlen (p); | |
1082 | string_appendn (declp, p, n); | |
1083 | (*mangled) = p + n; | |
1084 | } | |
dd3b648e RP |
1085 | else |
1086 | { | |
f9b5584c FF |
1087 | success = 0; |
1088 | } | |
1089 | return (success); | |
1090 | } | |
1091 | ||
3dc755fb FF |
1092 | /* |
1093 | ||
1094 | LOCAL FUNCTION | |
1095 | ||
1096 | cfront_special -- special handling of cfront/lucid mangled strings | |
1097 | ||
1098 | SYNOPSIS | |
1099 | ||
1100 | static int | |
38e9ed49 FF |
1101 | cfront_special (struct work_stuff *work, const char **mangled, |
1102 | string *declp); | |
3dc755fb FF |
1103 | |
1104 | ||
1105 | DESCRIPTION | |
1106 | ||
1107 | Process some special cfront style mangling forms that don't fit | |
1108 | the normal pattern. For example: | |
1109 | ||
1110 | __vtbl__3foo (foo virtual table) | |
1111 | __vtbl__3foo__3bar (bar::foo virtual table) | |
1112 | ||
1113 | */ | |
1114 | ||
1115 | static int | |
38e9ed49 | 1116 | cfront_special (work, mangled, declp) |
3dc755fb | 1117 | struct work_stuff *work; |
38e9ed49 FF |
1118 | const char **mangled; |
1119 | string *declp; | |
3dc755fb FF |
1120 | { |
1121 | int n; | |
1122 | int i; | |
1123 | int success = 1; | |
1124 | const char *p; | |
1125 | ||
1126 | if (strncmp (*mangled, ARM_VTABLE_STRING, ARM_VTABLE_STRLEN) == 0) | |
1127 | { | |
1128 | /* Found a cfront style virtual table, get past ARM_VTABLE_STRING | |
1129 | and create the decl. Note that we consume the entire mangled | |
1130 | input string, which means that demangle_signature has no work | |
1131 | to do. */ | |
1132 | (*mangled) += ARM_VTABLE_STRLEN; | |
1133 | while (**mangled != '\0') | |
1134 | { | |
1135 | n = consume_count (mangled); | |
1136 | string_prependn (declp, *mangled, n); | |
1137 | (*mangled) += n; | |
1138 | if ((*mangled)[0] == '_' && (*mangled)[1] == '_') | |
1139 | { | |
1140 | string_prepend (declp, "::"); | |
1141 | (*mangled) += 2; | |
1142 | } | |
1143 | } | |
1144 | string_append (declp, " virtual table"); | |
1145 | } | |
1146 | else | |
1147 | { | |
1148 | success = 0; | |
1149 | } | |
1150 | return (success); | |
1151 | } | |
1152 | ||
38e9ed49 FF |
1153 | /* |
1154 | ||
1155 | LOCAL FUNCTION | |
1156 | ||
1157 | demangle_qualified -- demangle 'Q' qualified name strings | |
1158 | ||
1159 | SYNOPSIS | |
1160 | ||
1161 | static int | |
1162 | demangle_qualified (struct work_stuff *, const char *mangled, | |
1163 | string *result, int isfuncname); | |
1164 | ||
1165 | DESCRIPTION | |
1166 | ||
1167 | Demangle a qualified name, such as "Q25Outer5Inner" which is | |
1168 | the mangled form of "Outer::Inner". The demangled output is | |
1169 | appended to the result string. | |
1170 | ||
1171 | If isfuncname is nonzero, then the qualified name we are building | |
1172 | is going to be used as a member function name, so if it is a | |
1173 | constructor or destructor function, append an appropriate | |
1174 | constructor or destructor name. I.E. for the above example, | |
1175 | the result for use as a constructor is "Outer::Inner::Inner" | |
1176 | and the result for use as a destructor is "Outer::Inner::~Inner". | |
1177 | ||
1178 | BUGS | |
1179 | ||
1180 | Numeric conversion is ASCII dependent (FIXME). | |
1181 | ||
1182 | */ | |
f9b5584c FF |
1183 | |
1184 | static int | |
38e9ed49 | 1185 | demangle_qualified (work, mangled, result, isfuncname) |
f9b5584c | 1186 | struct work_stuff *work; |
38e9ed49 FF |
1187 | const char **mangled; |
1188 | string *result; | |
1189 | int isfuncname; | |
f9b5584c | 1190 | { |
38e9ed49 FF |
1191 | int qualifiers; |
1192 | int namelength; | |
f9b5584c FF |
1193 | int success = 0; |
1194 | ||
38e9ed49 FF |
1195 | qualifiers = (*mangled)[1] - '0'; |
1196 | if (qualifiers > 0 && qualifiers < 10) | |
f9b5584c | 1197 | { |
38e9ed49 FF |
1198 | /* Assume success until we discover otherwise. Skip over the 'Q', the |
1199 | qualifier count, and any '_' between the qualifier count and the | |
1200 | first name (cfront qualified names). */ | |
1201 | ||
1202 | success = 1; | |
f9b5584c FF |
1203 | if ((*mangled)[2] == '_') |
1204 | { | |
f9b5584c FF |
1205 | (*mangled)++; |
1206 | } | |
1207 | (*mangled) += 2; | |
38e9ed49 FF |
1208 | |
1209 | ||
1210 | /* Pick off the names and append them to the result string as they | |
1211 | are found, separated by '::'. */ | |
1212 | ||
1213 | while (qualifiers-- > 0) | |
f9b5584c | 1214 | { |
38e9ed49 FF |
1215 | namelength = consume_count (mangled); |
1216 | if (strlen (*mangled) < namelength) | |
f9b5584c | 1217 | { |
38e9ed49 FF |
1218 | /* Simple sanity check failed */ |
1219 | success = 0; | |
1220 | break; | |
1221 | } | |
1222 | string_appendn (result, *mangled, namelength); | |
1223 | if (qualifiers > 0) | |
1224 | { | |
1225 | string_appendn (result, "::", 2); | |
f9b5584c | 1226 | } |
38e9ed49 FF |
1227 | *mangled += namelength; |
1228 | } | |
1229 | ||
1230 | /* If we are using the result as a function name, we need to append | |
1231 | the appropriate '::' separated constructor or destructor name. | |
1232 | We do this here because this is the most convenient place, where | |
1233 | we already have a pointer to the name and the length of the name. */ | |
1234 | ||
1235 | if (isfuncname && (work -> constructor || work -> destructor)) | |
1236 | { | |
1237 | string_appendn (result, "::", 2); | |
1238 | if (work -> destructor) | |
1239 | { | |
1240 | string_append (result, "~"); | |
1241 | } | |
1242 | string_appendn (result, (*mangled) - namelength, namelength); | |
f9b5584c | 1243 | } |
dd3b648e | 1244 | } |
f9b5584c | 1245 | return (success); |
dd3b648e RP |
1246 | } |
1247 | ||
1c92ca6f FF |
1248 | /* |
1249 | ||
1250 | LOCAL FUNCTION | |
1251 | ||
1252 | get_count -- convert an ascii count to integer, consuming tokens | |
1253 | ||
1254 | SYNOPSIS | |
1255 | ||
1256 | static int | |
1257 | get_count (const char **type, int *count) | |
1258 | ||
1259 | DESCRIPTION | |
1260 | ||
1261 | Return 0 if no conversion is performed, 1 if a string is converted. | |
1262 | */ | |
1263 | ||
dd3b648e RP |
1264 | static int |
1265 | get_count (type, count) | |
1266 | const char **type; | |
1267 | int *count; | |
1268 | { | |
f9b5584c FF |
1269 | const char *p; |
1270 | int n; | |
1271 | ||
dd3b648e | 1272 | if (!isdigit (**type)) |
f9b5584c FF |
1273 | { |
1274 | return (0); | |
1275 | } | |
1c92ca6f | 1276 | else |
dd3b648e | 1277 | { |
1c92ca6f FF |
1278 | *count = **type - '0'; |
1279 | (*type)++; | |
1280 | if (isdigit (**type)) | |
dd3b648e | 1281 | { |
1c92ca6f FF |
1282 | p = *type; |
1283 | n = *count; | |
1284 | do | |
1285 | { | |
1286 | n *= 10; | |
1287 | n += *p - '0'; | |
1288 | p++; | |
1289 | } | |
1290 | while (isdigit (*p)); | |
1291 | if (*p == '_') | |
1292 | { | |
1293 | *type = p + 1; | |
1294 | *count = n; | |
1295 | } | |
dd3b648e RP |
1296 | } |
1297 | } | |
f9b5584c | 1298 | return (1); |
dd3b648e RP |
1299 | } |
1300 | ||
1301 | /* result will be initialised here; it will be freed on failure */ | |
1302 | ||
1303 | static int | |
38e9ed49 | 1304 | do_type (work, mangled, result) |
f536aa39 | 1305 | struct work_stuff *work; |
38e9ed49 FF |
1306 | const char **mangled; |
1307 | string *result; | |
dd3b648e RP |
1308 | { |
1309 | int n; | |
1310 | int done; | |
dd3b648e RP |
1311 | int success; |
1312 | string decl; | |
1313 | const char *remembered_type; | |
f9b5584c FF |
1314 | int constp; |
1315 | int volatilep; | |
dd3b648e RP |
1316 | |
1317 | string_init (&decl); | |
1318 | string_init (result); | |
1319 | ||
1320 | done = 0; | |
1321 | success = 1; | |
1322 | while (success && !done) | |
1323 | { | |
1324 | int member; | |
38e9ed49 | 1325 | switch (**mangled) |
dd3b648e | 1326 | { |
55838914 | 1327 | |
f9b5584c | 1328 | /* A pointer type */ |
dd3b648e | 1329 | case 'P': |
38e9ed49 | 1330 | (*mangled)++; |
dd3b648e RP |
1331 | string_prepend (&decl, "*"); |
1332 | break; | |
1333 | ||
f9b5584c | 1334 | /* A reference type */ |
dd3b648e | 1335 | case 'R': |
38e9ed49 | 1336 | (*mangled)++; |
dd3b648e RP |
1337 | string_prepend (&decl, "&"); |
1338 | break; | |
1339 | ||
f9b5584c | 1340 | /* A back reference to a previously seen type */ |
dd3b648e | 1341 | case 'T': |
38e9ed49 FF |
1342 | (*mangled)++; |
1343 | if (!get_count (mangled, &n) || n >= work -> ntypes) | |
f9b5584c FF |
1344 | { |
1345 | success = 0; | |
1346 | } | |
dd3b648e RP |
1347 | else |
1348 | { | |
f9b5584c | 1349 | remembered_type = work -> typevec[n]; |
38e9ed49 | 1350 | mangled = &remembered_type; |
dd3b648e RP |
1351 | } |
1352 | break; | |
1353 | ||
f9b5584c | 1354 | /* A function */ |
dd3b648e | 1355 | case 'F': |
38e9ed49 | 1356 | (*mangled)++; |
f9b5584c | 1357 | if (!STRING_EMPTY (&decl) && decl.b[0] == '*') |
dd3b648e RP |
1358 | { |
1359 | string_prepend (&decl, "("); | |
1360 | string_append (&decl, ")"); | |
1361 | } | |
8f793aa5 | 1362 | /* After picking off the function args, we expect to either find the |
f9b5584c FF |
1363 | function return type (preceded by an '_') or the end of the |
1364 | string. */ | |
38e9ed49 FF |
1365 | if (!demangle_args (work, mangled, &decl) |
1366 | || (**mangled != '_' && **mangled != '\0')) | |
f9b5584c FF |
1367 | { |
1368 | success = 0; | |
1369 | } | |
38e9ed49 | 1370 | if (success && (**mangled == '_')) |
f9b5584c | 1371 | { |
38e9ed49 | 1372 | (*mangled)++; |
f9b5584c | 1373 | } |
dd3b648e RP |
1374 | break; |
1375 | ||
1376 | case 'M': | |
1377 | case 'O': | |
1378 | { | |
f9b5584c FF |
1379 | constp = 0; |
1380 | volatilep = 0; | |
dd3b648e | 1381 | |
38e9ed49 FF |
1382 | member = **mangled == 'M'; |
1383 | (*mangled)++; | |
1384 | if (!isdigit (**mangled)) | |
dd3b648e RP |
1385 | { |
1386 | success = 0; | |
1387 | break; | |
1388 | } | |
38e9ed49 FF |
1389 | n = consume_count (mangled); |
1390 | if (strlen (*mangled) < n) | |
dd3b648e RP |
1391 | { |
1392 | success = 0; | |
1393 | break; | |
1394 | } | |
1395 | string_append (&decl, ")"); | |
1396 | string_prepend (&decl, "::"); | |
38e9ed49 | 1397 | string_prependn (&decl, *mangled, n); |
dd3b648e | 1398 | string_prepend (&decl, "("); |
38e9ed49 | 1399 | *mangled += n; |
dd3b648e RP |
1400 | if (member) |
1401 | { | |
38e9ed49 | 1402 | if (**mangled == 'C') |
dd3b648e | 1403 | { |
38e9ed49 | 1404 | (*mangled)++; |
dd3b648e RP |
1405 | constp = 1; |
1406 | } | |
38e9ed49 | 1407 | if (**mangled == 'V') |
dd3b648e | 1408 | { |
38e9ed49 | 1409 | (*mangled)++; |
dd3b648e RP |
1410 | volatilep = 1; |
1411 | } | |
38e9ed49 | 1412 | if (*(*mangled)++ != 'F') |
dd3b648e RP |
1413 | { |
1414 | success = 0; | |
1415 | break; | |
1416 | } | |
1417 | } | |
38e9ed49 FF |
1418 | if ((member && !demangle_args (work, mangled, &decl)) |
1419 | || **mangled != '_') | |
dd3b648e RP |
1420 | { |
1421 | success = 0; | |
1422 | break; | |
1423 | } | |
38e9ed49 | 1424 | (*mangled)++; |
8f793aa5 | 1425 | if (! PRINT_ANSI_QUALIFIERS) |
f9b5584c FF |
1426 | { |
1427 | break; | |
1428 | } | |
dd3b648e RP |
1429 | if (constp) |
1430 | { | |
f9b5584c | 1431 | APPEND_BLANK (&decl); |
dd3b648e RP |
1432 | string_append (&decl, "const"); |
1433 | } | |
1434 | if (volatilep) | |
1435 | { | |
f9b5584c | 1436 | APPEND_BLANK (&decl); |
dd3b648e RP |
1437 | string_append (&decl, "volatile"); |
1438 | } | |
1439 | break; | |
1440 | } | |
1441 | ||
1442 | case 'C': | |
38e9ed49 | 1443 | if ((*mangled)[1] == 'P') |
dd3b648e | 1444 | { |
38e9ed49 | 1445 | (*mangled)++; |
8f793aa5 | 1446 | if (PRINT_ANSI_QUALIFIERS) |
dd3b648e | 1447 | { |
f9b5584c FF |
1448 | if (!STRING_EMPTY (&decl)) |
1449 | { | |
1450 | string_prepend (&decl, " "); | |
1451 | } | |
dd3b648e RP |
1452 | string_prepend (&decl, "const"); |
1453 | } | |
1454 | break; | |
1455 | } | |
1456 | ||
1457 | /* fall through */ | |
1458 | default: | |
1459 | done = 1; | |
1460 | break; | |
1461 | } | |
1462 | } | |
1463 | ||
38e9ed49 FF |
1464 | switch (**mangled) |
1465 | { | |
1466 | /* A qualified name, such as "Outer::Inner". */ | |
1467 | case 'Q': | |
1468 | success = demangle_qualified (work, mangled, result, 0); | |
1469 | break; | |
1470 | ||
1471 | default: | |
1472 | success = demangle_fund_type (work, mangled, result); | |
1473 | break; | |
1474 | } | |
f9b5584c FF |
1475 | |
1476 | if (success) | |
1477 | { | |
1478 | if (!STRING_EMPTY (&decl)) | |
1479 | { | |
1480 | string_append (result, " "); | |
1481 | string_appends (result, &decl); | |
1482 | } | |
1483 | } | |
1484 | else | |
1485 | { | |
1486 | string_delete (result); | |
1487 | } | |
1488 | string_delete (&decl); | |
1489 | return (success); | |
1490 | } | |
1491 | ||
1492 | /* Given a pointer to a type string that represents a fundamental type | |
1493 | argument (int, long, unsigned int, etc) in TYPE, a pointer to the | |
1494 | string in which the demangled output is being built in RESULT, and | |
1495 | the WORK structure, decode the types and add them to the result. | |
1496 | ||
1497 | For example: | |
1498 | ||
1499 | "Ci" => "const int" | |
1500 | "Sl" => "signed long" | |
1501 | "CUs" => "const unsigned short" | |
1502 | ||
1503 | */ | |
1504 | ||
1505 | static int | |
38e9ed49 | 1506 | demangle_fund_type (work, mangled, result) |
f9b5584c | 1507 | struct work_stuff *work; |
38e9ed49 FF |
1508 | const char **mangled; |
1509 | string *result; | |
f9b5584c FF |
1510 | { |
1511 | int done = 0; | |
1512 | int success = 1; | |
1513 | int n; | |
1514 | ||
1515 | /* First pick off any type qualifiers. There can be more than one. */ | |
1516 | ||
1517 | while (!done) | |
dd3b648e | 1518 | { |
38e9ed49 | 1519 | switch (**mangled) |
dd3b648e | 1520 | { |
f9b5584c | 1521 | case 'C': |
38e9ed49 | 1522 | (*mangled)++; |
f9b5584c FF |
1523 | if (PRINT_ANSI_QUALIFIERS) |
1524 | { | |
1525 | APPEND_BLANK (result); | |
1526 | string_append (result, "const"); | |
1527 | } | |
1528 | break; | |
1529 | case 'U': | |
38e9ed49 | 1530 | (*mangled)++; |
f9b5584c FF |
1531 | APPEND_BLANK (result); |
1532 | string_append (result, "unsigned"); | |
1533 | break; | |
1534 | case 'S': /* signed char only */ | |
38e9ed49 | 1535 | (*mangled)++; |
f9b5584c FF |
1536 | APPEND_BLANK (result); |
1537 | string_append (result, "signed"); | |
1538 | break; | |
1539 | case 'V': | |
38e9ed49 | 1540 | (*mangled)++; |
f9b5584c FF |
1541 | if (PRINT_ANSI_QUALIFIERS) |
1542 | { | |
1543 | APPEND_BLANK (result); | |
1544 | string_append (result, "volatile"); | |
1545 | } | |
1546 | break; | |
1547 | default: | |
1548 | done = 1; | |
1549 | break; | |
dd3b648e RP |
1550 | } |
1551 | } | |
1552 | ||
f9b5584c FF |
1553 | /* Now pick off the fundamental type. There can be only one. */ |
1554 | ||
38e9ed49 | 1555 | switch (**mangled) |
f9b5584c | 1556 | { |
dd3b648e RP |
1557 | case '\0': |
1558 | case '_': | |
1559 | break; | |
1560 | case 'v': | |
38e9ed49 | 1561 | (*mangled)++; |
f9b5584c | 1562 | APPEND_BLANK (result); |
dd3b648e RP |
1563 | string_append (result, "void"); |
1564 | break; | |
1565 | case 'x': | |
38e9ed49 | 1566 | (*mangled)++; |
f9b5584c | 1567 | APPEND_BLANK (result); |
dd3b648e RP |
1568 | string_append (result, "long long"); |
1569 | break; | |
1570 | case 'l': | |
38e9ed49 | 1571 | (*mangled)++; |
f9b5584c | 1572 | APPEND_BLANK (result); |
dd3b648e RP |
1573 | string_append (result, "long"); |
1574 | break; | |
1575 | case 'i': | |
38e9ed49 | 1576 | (*mangled)++; |
f9b5584c | 1577 | APPEND_BLANK (result); |
dd3b648e RP |
1578 | string_append (result, "int"); |
1579 | break; | |
1580 | case 's': | |
38e9ed49 | 1581 | (*mangled)++; |
f9b5584c | 1582 | APPEND_BLANK (result); |
dd3b648e RP |
1583 | string_append (result, "short"); |
1584 | break; | |
1585 | case 'c': | |
38e9ed49 | 1586 | (*mangled)++; |
f9b5584c | 1587 | APPEND_BLANK (result); |
dd3b648e RP |
1588 | string_append (result, "char"); |
1589 | break; | |
1590 | case 'r': | |
38e9ed49 | 1591 | (*mangled)++; |
f9b5584c | 1592 | APPEND_BLANK (result); |
dd3b648e RP |
1593 | string_append (result, "long double"); |
1594 | break; | |
1595 | case 'd': | |
38e9ed49 | 1596 | (*mangled)++; |
f9b5584c | 1597 | APPEND_BLANK (result); |
dd3b648e RP |
1598 | string_append (result, "double"); |
1599 | break; | |
1600 | case 'f': | |
38e9ed49 | 1601 | (*mangled)++; |
f9b5584c | 1602 | APPEND_BLANK (result); |
dd3b648e RP |
1603 | string_append (result, "float"); |
1604 | break; | |
1605 | case 'G': | |
38e9ed49 FF |
1606 | (*mangled)++; |
1607 | if (!isdigit (**mangled)) | |
dd3b648e RP |
1608 | { |
1609 | success = 0; | |
1610 | break; | |
1611 | } | |
1612 | /* fall through */ | |
f9b5584c | 1613 | /* An explicit type, such as "6mytype" or "7integer" */ |
dd3b648e RP |
1614 | case '0': |
1615 | case '1': | |
1616 | case '2': | |
1617 | case '3': | |
1618 | case '4': | |
1619 | case '5': | |
1620 | case '6': | |
1621 | case '7': | |
1622 | case '8': | |
1623 | case '9': | |
38e9ed49 FF |
1624 | n = consume_count (mangled); |
1625 | if (strlen (*mangled) < n) | |
dd3b648e RP |
1626 | { |
1627 | success = 0; | |
1628 | break; | |
1629 | } | |
f9b5584c | 1630 | APPEND_BLANK (result); |
38e9ed49 FF |
1631 | string_appendn (result, *mangled, n); |
1632 | *mangled += n; | |
dd3b648e RP |
1633 | break; |
1634 | default: | |
1635 | success = 0; | |
1636 | break; | |
1637 | } | |
1638 | ||
f9b5584c | 1639 | return (success); |
dd3b648e RP |
1640 | } |
1641 | ||
f9b5584c | 1642 | /* `result' will be initialized in do_type; it will be freed on failure */ |
dd3b648e RP |
1643 | |
1644 | static int | |
38e9ed49 | 1645 | do_arg (work, mangled, result) |
f536aa39 | 1646 | struct work_stuff *work; |
38e9ed49 FF |
1647 | const char **mangled; |
1648 | string *result; | |
dd3b648e | 1649 | { |
38e9ed49 | 1650 | const char *start = *mangled; |
dd3b648e | 1651 | |
38e9ed49 | 1652 | if (!do_type (work, mangled, result)) |
f9b5584c FF |
1653 | { |
1654 | return (0); | |
1655 | } | |
1656 | else | |
1657 | { | |
38e9ed49 | 1658 | remember_type (work, start, *mangled - start); |
f9b5584c FF |
1659 | return (1); |
1660 | } | |
dd3b648e RP |
1661 | } |
1662 | ||
1663 | static void | |
38e9ed49 FF |
1664 | remember_type (work, start, len) |
1665 | struct work_stuff *work; | |
dd3b648e RP |
1666 | const char *start; |
1667 | int len; | |
1668 | { | |
1669 | char *tem; | |
1670 | ||
f9b5584c | 1671 | if (work -> ntypes >= work -> typevec_size) |
dd3b648e | 1672 | { |
f9b5584c | 1673 | if (work -> typevec_size == 0) |
dd3b648e | 1674 | { |
f9b5584c FF |
1675 | work -> typevec_size = 3; |
1676 | work -> typevec = | |
1677 | (char **) xmalloc (sizeof (char *) * work -> typevec_size); | |
dd3b648e RP |
1678 | } |
1679 | else | |
1680 | { | |
f9b5584c FF |
1681 | work -> typevec_size *= 2; |
1682 | work -> typevec = | |
1683 | (char **) xrealloc ((char *)work -> typevec, | |
1684 | sizeof (char *) * work -> typevec_size); | |
dd3b648e RP |
1685 | } |
1686 | } | |
1687 | tem = (char *) xmalloc (len + 1); | |
1688 | memcpy (tem, start, len); | |
1689 | tem[len] = '\0'; | |
f9b5584c | 1690 | work -> typevec[work -> ntypes++] = tem; |
dd3b648e RP |
1691 | } |
1692 | ||
3dc755fb FF |
1693 | /* Forget the remembered types, but not the type vector itself. */ |
1694 | ||
1695 | static void | |
1696 | forget_types (work) | |
1697 | struct work_stuff *work; | |
1698 | { | |
1699 | int i; | |
1700 | ||
1701 | while (work -> ntypes > 0) | |
1702 | { | |
1703 | i = --(work -> ntypes); | |
1704 | if (work -> typevec[i] != NULL) | |
1705 | { | |
1706 | free (work -> typevec[i]); | |
1707 | work -> typevec[i] = NULL; | |
1708 | } | |
1709 | } | |
1710 | } | |
1711 | ||
f9b5584c FF |
1712 | /* Process the argument list part of the signature, after any class spec |
1713 | has been consumed, as well as the first 'F' character (if any). For | |
1714 | example: | |
1715 | ||
1716 | "__als__3fooRT0" => process "RT0" | |
1717 | "complexfunc5__FPFPc_PFl_i" => process "PFPc_PFl_i" | |
1718 | ||
1719 | DECLP must be already initialised, usually non-empty. It won't be freed | |
3dc755fb FF |
1720 | on failure. |
1721 | ||
1722 | Note that g++ differs significantly from cfront and lucid style mangling | |
1723 | with regards to references to previously seen types. For example, given | |
1724 | the source fragment: | |
1725 | ||
1726 | class foo { | |
1727 | public: | |
1728 | foo::foo (int, foo &ia, int, foo &ib, int, foo &ic); | |
1729 | }; | |
1730 | ||
1731 | foo::foo (int, foo &ia, int, foo &ib, int, foo &ic) { ia = ib = ic; } | |
1732 | void foo (int, foo &ia, int, foo &ib, int, foo &ic) { ia = ib = ic; } | |
1733 | ||
1734 | g++ produces the names: | |
1735 | ||
1736 | __3fooiRT0iT2iT2 | |
1737 | foo__FiR3fooiT1iT1 | |
1738 | ||
1739 | while lcc (and presumably cfront as well) produces: | |
1740 | ||
1741 | foo__FiR3fooT1T2T1T2 | |
1742 | __ct__3fooFiR3fooT1T2T1T2 | |
1743 | ||
1744 | Note that g++ bases it's type numbers starting at zero and counts all | |
1745 | previously seen types, while lucid/cfront bases it's type numbers starting | |
1746 | at one and only considers types after it has seen the 'F' character | |
1747 | indicating the start of the function args. For lucid/cfront style, we | |
1748 | account for this difference by discarding any previously seen types when | |
1749 | we see the 'F' character, and subtracting one from the type number | |
1750 | reference. | |
1751 | ||
1752 | */ | |
dd3b648e RP |
1753 | |
1754 | static int | |
38e9ed49 | 1755 | demangle_args (work, mangled, declp) |
f536aa39 | 1756 | struct work_stuff *work; |
38e9ed49 FF |
1757 | const char **mangled; |
1758 | string *declp; | |
dd3b648e RP |
1759 | { |
1760 | string arg; | |
1761 | int need_comma = 0; | |
f9b5584c FF |
1762 | int r; |
1763 | int t; | |
1764 | const char *tem; | |
1765 | char temptype; | |
dd3b648e | 1766 | |
8f793aa5 | 1767 | if (PRINT_ARG_TYPES) |
f9b5584c FF |
1768 | { |
1769 | string_append (declp, "("); | |
38e9ed49 | 1770 | if (**mangled == '\0') |
f9b5584c FF |
1771 | { |
1772 | string_append (declp, "void"); | |
1773 | } | |
1774 | } | |
dd3b648e | 1775 | |
38e9ed49 | 1776 | while (**mangled != '_' && **mangled != '\0' && **mangled != 'e') |
dd3b648e | 1777 | { |
38e9ed49 | 1778 | if ((**mangled == 'N') || (**mangled == 'T')) |
dd3b648e | 1779 | { |
38e9ed49 | 1780 | temptype = *(*mangled)++; |
f9b5584c FF |
1781 | |
1782 | if (temptype == 'N') | |
1783 | { | |
38e9ed49 | 1784 | if (!get_count (mangled, &r)) |
f9b5584c FF |
1785 | { |
1786 | return (0); | |
1787 | } | |
1788 | } | |
1789 | else | |
1790 | { | |
1791 | r = 1; | |
1792 | } | |
38e9ed49 | 1793 | if (!get_count (mangled, &t)) |
f9b5584c FF |
1794 | { |
1795 | return (0); | |
1796 | } | |
3dc755fb | 1797 | if (LUCID_DEMANGLING || CFRONT_DEMANGLING) |
2dbde378 FF |
1798 | { |
1799 | t--; | |
1800 | } | |
91fef76b FF |
1801 | /* Validate the type index. Protect against illegal indices from |
1802 | malformed type strings. */ | |
1803 | if ((t < 0) || (t >= work -> ntypes)) | |
f9b5584c FF |
1804 | { |
1805 | return (0); | |
1806 | } | |
dd3b648e RP |
1807 | while (--r >= 0) |
1808 | { | |
f9b5584c | 1809 | tem = work -> typevec[t]; |
8f793aa5 | 1810 | if (need_comma && PRINT_ARG_TYPES) |
f9b5584c FF |
1811 | { |
1812 | string_append (declp, ", "); | |
1813 | } | |
38e9ed49 | 1814 | if (!do_arg (work, &tem, &arg)) |
f9b5584c FF |
1815 | { |
1816 | return (0); | |
1817 | } | |
8f793aa5 | 1818 | if (PRINT_ARG_TYPES) |
f9b5584c FF |
1819 | { |
1820 | string_appends (declp, &arg); | |
1821 | } | |
dd3b648e RP |
1822 | string_delete (&arg); |
1823 | need_comma = 1; | |
1824 | } | |
1825 | } | |
1826 | else | |
1827 | { | |
8f793aa5 | 1828 | if (need_comma & PRINT_ARG_TYPES) |
f9b5584c FF |
1829 | { |
1830 | string_append (declp, ", "); | |
1831 | } | |
38e9ed49 | 1832 | if (!do_arg (work, mangled, &arg)) |
f9b5584c FF |
1833 | { |
1834 | return (0); | |
1835 | } | |
8f793aa5 | 1836 | if (PRINT_ARG_TYPES) |
f9b5584c FF |
1837 | { |
1838 | string_appends (declp, &arg); | |
1839 | } | |
dd3b648e RP |
1840 | string_delete (&arg); |
1841 | need_comma = 1; | |
1842 | } | |
1843 | } | |
1844 | ||
38e9ed49 | 1845 | if (**mangled == 'e') |
dd3b648e | 1846 | { |
38e9ed49 | 1847 | (*mangled)++; |
8f793aa5 | 1848 | if (PRINT_ARG_TYPES) |
dd3b648e RP |
1849 | { |
1850 | if (need_comma) | |
f9b5584c FF |
1851 | { |
1852 | string_append (declp, ","); | |
1853 | } | |
1854 | string_append (declp, "..."); | |
dd3b648e RP |
1855 | } |
1856 | } | |
1857 | ||
8f793aa5 | 1858 | if (PRINT_ARG_TYPES) |
f9b5584c FF |
1859 | { |
1860 | string_append (declp, ")"); | |
1861 | } | |
1862 | return (1); | |
dd3b648e RP |
1863 | } |
1864 | ||
1865 | static void | |
38e9ed49 | 1866 | demangle_function_name (work, mangled, declp, scan) |
f536aa39 | 1867 | struct work_stuff *work; |
38e9ed49 FF |
1868 | const char **mangled; |
1869 | string *declp; | |
f9b5584c | 1870 | const char *scan; |
dd3b648e | 1871 | { |
f9b5584c FF |
1872 | int i; |
1873 | int len; | |
1874 | string type; | |
1875 | const char *tem; | |
1876 | ||
1877 | string_appendn (declp, (*mangled), scan - (*mangled)); | |
1878 | string_need (declp, 1); | |
1879 | *(declp -> p) = '\0'; | |
1880 | ||
1881 | /* Consume the function name, including the "__" separating the name | |
1882 | from the signature. We are guaranteed that SCAN points to the | |
1883 | separator. */ | |
1884 | ||
1885 | (*mangled) = scan + 2; | |
1886 | ||
3dc755fb | 1887 | if (LUCID_DEMANGLING || CFRONT_DEMANGLING) |
2dbde378 | 1888 | { |
f9b5584c | 1889 | |
2dbde378 FF |
1890 | /* See if we have an ARM style constructor or destructor operator. |
1891 | If so, then just record it, clear the decl, and return. | |
1892 | We can't build the actual constructor/destructor decl until later, | |
1893 | when we recover the class name from the signature. */ | |
f9b5584c | 1894 | |
2dbde378 FF |
1895 | if (strcmp (declp -> b, "__ct") == 0) |
1896 | { | |
1897 | work -> constructor = 1; | |
1898 | string_clear (declp); | |
1899 | return; | |
1900 | } | |
1901 | else if (strcmp (declp -> b, "__dt") == 0) | |
1902 | { | |
1903 | work -> destructor = 1; | |
1904 | string_clear (declp); | |
1905 | return; | |
1906 | } | |
f9b5584c FF |
1907 | } |
1908 | ||
f9b5584c FF |
1909 | if (declp->p - declp->b >= 3 |
1910 | && declp->b[0] == 'o' | |
1911 | && declp->b[1] == 'p' | |
3dc755fb | 1912 | && strchr (cplus_markers, declp->b[2]) != NULL) |
dd3b648e | 1913 | { |
dd3b648e | 1914 | /* see if it's an assignment expression */ |
f9b5584c FF |
1915 | if (declp->p - declp->b >= 10 /* op$assign_ */ |
1916 | && memcmp (declp->b + 3, "assign_", 7) == 0) | |
dd3b648e | 1917 | { |
f9b5584c | 1918 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) |
dd3b648e | 1919 | { |
f9b5584c | 1920 | len = declp->p - declp->b - 10; |
dd3b648e | 1921 | if (strlen (optable[i].in) == len |
f9b5584c | 1922 | && memcmp (optable[i].in, declp->b + 10, len) == 0) |
dd3b648e | 1923 | { |
f9b5584c FF |
1924 | string_clear (declp); |
1925 | string_append (declp, "operator"); | |
1926 | string_append (declp, optable[i].out); | |
1927 | string_append (declp, "="); | |
1928 | break; | |
dd3b648e RP |
1929 | } |
1930 | } | |
1931 | } | |
1932 | else | |
1933 | { | |
f9b5584c | 1934 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) |
dd3b648e | 1935 | { |
f9b5584c | 1936 | int len = declp->p - declp->b - 3; |
dd3b648e | 1937 | if (strlen (optable[i].in) == len |
f9b5584c | 1938 | && memcmp (optable[i].in, declp->b + 3, len) == 0) |
dd3b648e | 1939 | { |
f9b5584c FF |
1940 | string_clear (declp); |
1941 | string_append (declp, "operator"); | |
1942 | string_append (declp, optable[i].out); | |
1943 | break; | |
dd3b648e RP |
1944 | } |
1945 | } | |
1946 | } | |
dd3b648e | 1947 | } |
f9b5584c | 1948 | else if (declp->p - declp->b >= 5 && memcmp (declp->b, "type$", 5) == 0) |
dd3b648e RP |
1949 | { |
1950 | /* type conversion operator */ | |
f9b5584c | 1951 | tem = declp->b + 5; |
38e9ed49 | 1952 | if (do_type (work, &tem, &type)) |
dd3b648e | 1953 | { |
f9b5584c FF |
1954 | string_clear (declp); |
1955 | string_append (declp, "operator "); | |
1956 | string_appends (declp, &type); | |
dd3b648e | 1957 | string_delete (&type); |
dd3b648e RP |
1958 | } |
1959 | } | |
f9b5584c | 1960 | else if (declp->b[2] == 'o' && declp->b[3] == 'p') |
572acbbe | 1961 | { |
f9b5584c | 1962 | /* ANSI. */ |
572acbbe | 1963 | /* type conversion operator. */ |
f9b5584c | 1964 | tem = declp->b + 4; |
38e9ed49 | 1965 | if (do_type (work, &tem, &type)) |
572acbbe | 1966 | { |
f9b5584c FF |
1967 | string_clear (declp); |
1968 | string_append (declp, "operator "); | |
1969 | string_appends (declp, &type); | |
572acbbe | 1970 | string_delete (&type); |
572acbbe MT |
1971 | } |
1972 | } | |
f9b5584c FF |
1973 | else if (declp->b[0] == '_' && declp->b[1] == '_' |
1974 | && declp->b[2] >= 'a' && declp->b[2] <= 'z' | |
1975 | && declp->b[3] >= 'a' && declp->b[3] <= 'z') | |
572acbbe | 1976 | { |
f9b5584c | 1977 | if (declp->b[4] == '\0') |
572acbbe MT |
1978 | { |
1979 | /* Operator. */ | |
f9b5584c | 1980 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) |
572acbbe MT |
1981 | { |
1982 | if (strlen (optable[i].in) == 2 | |
f9b5584c | 1983 | && memcmp (optable[i].in, declp->b + 2, 2) == 0) |
572acbbe | 1984 | { |
f9b5584c FF |
1985 | string_clear (declp); |
1986 | string_append (declp, "operator"); | |
1987 | string_append (declp, optable[i].out); | |
1988 | break; | |
572acbbe MT |
1989 | } |
1990 | } | |
1991 | } | |
1992 | else | |
1993 | { | |
f9b5584c | 1994 | if (declp->b[2] == 'a' && declp->b[5] == '\0') |
572acbbe | 1995 | { |
f9b5584c FF |
1996 | /* Assignment. */ |
1997 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) | |
572acbbe | 1998 | { |
f9b5584c FF |
1999 | if (strlen (optable[i].in) == 3 |
2000 | && memcmp (optable[i].in, declp->b + 2, 3) == 0) | |
2001 | { | |
2002 | string_clear (declp); | |
2003 | string_append (declp, "operator"); | |
2004 | string_append (declp, optable[i].out); | |
2005 | break; | |
2006 | } | |
572acbbe MT |
2007 | } |
2008 | } | |
2009 | } | |
2010 | } | |
dd3b648e RP |
2011 | } |
2012 | ||
2013 | /* a mini string-handling package */ | |
2014 | ||
2015 | static void | |
2016 | string_need (s, n) | |
2017 | string *s; | |
2018 | int n; | |
2019 | { | |
f9b5584c FF |
2020 | int tem; |
2021 | ||
dd3b648e RP |
2022 | if (s->b == NULL) |
2023 | { | |
2024 | if (n < 32) | |
f9b5584c FF |
2025 | { |
2026 | n = 32; | |
2027 | } | |
dd3b648e RP |
2028 | s->p = s->b = (char *) xmalloc (n); |
2029 | s->e = s->b + n; | |
2030 | } | |
2031 | else if (s->e - s->p < n) | |
2032 | { | |
f9b5584c | 2033 | tem = s->p - s->b; |
dd3b648e RP |
2034 | n += tem; |
2035 | n *= 2; | |
2036 | s->b = (char *) xrealloc (s->b, n); | |
2037 | s->p = s->b + tem; | |
2038 | s->e = s->b + n; | |
2039 | } | |
2040 | } | |
2041 | ||
2042 | static void | |
2043 | string_delete (s) | |
2044 | string *s; | |
2045 | { | |
2046 | if (s->b != NULL) | |
2047 | { | |
2048 | free (s->b); | |
2049 | s->b = s->e = s->p = NULL; | |
2050 | } | |
2051 | } | |
2052 | ||
2053 | static void | |
2054 | string_init (s) | |
2055 | string *s; | |
2056 | { | |
2057 | s->b = s->p = s->e = NULL; | |
2058 | } | |
2059 | ||
2060 | static void | |
2061 | string_clear (s) | |
2062 | string *s; | |
2063 | { | |
2064 | s->p = s->b; | |
2065 | } | |
2066 | ||
51b57ded FF |
2067 | #if 0 |
2068 | ||
dd3b648e RP |
2069 | static int |
2070 | string_empty (s) | |
2071 | string *s; | |
2072 | { | |
f9b5584c | 2073 | return (s->b == s->p); |
dd3b648e RP |
2074 | } |
2075 | ||
51b57ded FF |
2076 | #endif |
2077 | ||
dd3b648e RP |
2078 | static void |
2079 | string_append (p, s) | |
2080 | string *p; | |
2081 | const char *s; | |
2082 | { | |
2083 | int n; | |
2084 | if (s == NULL || *s == '\0') | |
2085 | return; | |
2086 | n = strlen (s); | |
2087 | string_need (p, n); | |
2088 | memcpy (p->p, s, n); | |
2089 | p->p += n; | |
2090 | } | |
2091 | ||
2092 | static void | |
2093 | string_appends (p, s) | |
2094 | string *p, *s; | |
2095 | { | |
2096 | int n; | |
f9b5584c FF |
2097 | |
2098 | if (s->b != s->p) | |
2099 | { | |
2100 | n = s->p - s->b; | |
2101 | string_need (p, n); | |
2102 | memcpy (p->p, s->b, n); | |
2103 | p->p += n; | |
2104 | } | |
dd3b648e RP |
2105 | } |
2106 | ||
2107 | static void | |
2108 | string_appendn (p, s, n) | |
2109 | string *p; | |
2110 | const char *s; | |
2111 | int n; | |
2112 | { | |
f9b5584c FF |
2113 | if (n != 0) |
2114 | { | |
2115 | string_need (p, n); | |
2116 | memcpy (p->p, s, n); | |
2117 | p->p += n; | |
2118 | } | |
dd3b648e RP |
2119 | } |
2120 | ||
2121 | static void | |
2122 | string_prepend (p, s) | |
2123 | string *p; | |
2124 | const char *s; | |
2125 | { | |
f9b5584c FF |
2126 | if (s != NULL && *s != '\0') |
2127 | { | |
2128 | string_prependn (p, s, strlen (s)); | |
2129 | } | |
dd3b648e RP |
2130 | } |
2131 | ||
2132 | #if 0 | |
51b57ded | 2133 | |
dd3b648e RP |
2134 | static void |
2135 | string_prepends (p, s) | |
2136 | string *p, *s; | |
2137 | { | |
f9b5584c FF |
2138 | if (s->b != s->p) |
2139 | { | |
2140 | string_prependn (p, s->b, s->p - s->b); | |
2141 | } | |
dd3b648e | 2142 | } |
51b57ded | 2143 | |
dd3b648e RP |
2144 | #endif |
2145 | ||
2146 | static void | |
2147 | string_prependn (p, s, n) | |
2148 | string *p; | |
2149 | const char *s; | |
2150 | int n; | |
2151 | { | |
2152 | char *q; | |
2153 | ||
f9b5584c FF |
2154 | if (n != 0) |
2155 | { | |
2156 | string_need (p, n); | |
2157 | for (q = p->p - 1; q >= p->b; q--) | |
2158 | { | |
2159 | q[n] = q[0]; | |
2160 | } | |
2161 | memcpy (p->b, s, n); | |
2162 | p->p += n; | |
2163 | } | |
2164 | } | |
2165 | ||
2166 | /* To generate a standalone demangler program for testing purposes, just | |
2167 | compile and link this file with -DMAIN. When run, it demangles each | |
2168 | command line arg, or each stdin string, and prints the result on stdout. */ | |
2169 | ||
2170 | #ifdef MAIN | |
2171 | ||
2172 | static void | |
2173 | demangle_it (mangled_name) | |
2174 | char *mangled_name; | |
2175 | { | |
2176 | char *result; | |
2177 | ||
2178 | result = cplus_demangle (mangled_name, DMGL_PARAMS | DMGL_ANSI); | |
2179 | if (result == NULL) | |
2180 | { | |
2181 | printf ("%s\n", mangled_name); | |
2182 | } | |
2183 | else | |
2184 | { | |
2185 | printf ("%s\n", result); | |
2186 | free (result); | |
2187 | } | |
2188 | } | |
2189 | ||
2190 | PTR | |
2191 | xmalloc (size) | |
2192 | long size; | |
2193 | { | |
2194 | PTR newmem; | |
2195 | ||
2196 | if ((newmem = malloc ((int) size)) == NULL) | |
2197 | { | |
2198 | fprintf (stderr, "\nCan't allocate %u bytes\n", size); | |
2199 | exit (1); | |
2200 | } | |
2201 | return (newmem); | |
2202 | } | |
2203 | ||
2204 | PTR | |
2205 | xrealloc (oldmem, size) | |
2206 | PTR oldmem; | |
2207 | long size; | |
2208 | { | |
2209 | PTR newmem; | |
2210 | ||
2211 | if ((newmem = realloc ((char *) oldmem, (int) size)) == NULL) | |
2212 | { | |
2213 | fprintf (stderr, "\nCan't reallocate %u bytes\n", size); | |
2214 | exit (1); | |
2215 | } | |
2216 | return (newmem); | |
2217 | } | |
2218 | ||
2dbde378 FF |
2219 | #include <stdio.h> |
2220 | ||
2221 | enum demangling_styles current_demangling_style = gnu_demangling; | |
2222 | ||
f9b5584c FF |
2223 | main (argc, argv) |
2224 | int argc; | |
2225 | char **argv; | |
2226 | { | |
2227 | char mangled_name[128]; | |
2228 | char *result; | |
2dbde378 FF |
2229 | int c; |
2230 | extern char *optarg; | |
2231 | extern int optind; | |
2232 | ||
2233 | while ((c = getopt (argc, argv, "s:?")) != EOF) | |
f9b5584c | 2234 | { |
2dbde378 | 2235 | switch (c) |
f9b5584c | 2236 | { |
2dbde378 FF |
2237 | case '?': |
2238 | fprintf (stderr, "usage: demangle [-s style] [arg1 [arg2]] ...\n"); | |
2239 | fprintf (stderr, "style = { gnu, lucid, cfront }\n"); | |
2240 | fprintf (stderr, "reads args from stdin if none supplied\n"); | |
2241 | exit (0); | |
2242 | break; | |
2243 | case 's': | |
2244 | if (strcmp (optarg, "gnu") == 0) | |
2245 | { | |
2246 | current_demangling_style = gnu_demangling; | |
2247 | } | |
2248 | else if (strcmp (optarg, "lucid") == 0) | |
2249 | { | |
2250 | current_demangling_style = lucid_demangling; | |
2251 | } | |
2252 | else if (strcmp (optarg, "cfront") == 0) | |
2253 | { | |
2254 | current_demangling_style = cfront_demangling; | |
2255 | } | |
2256 | else | |
2257 | { | |
2258 | fprintf (stderr, "unknown demangling style `%s'\n", optarg); | |
2259 | exit (1); | |
2260 | } | |
2261 | break; | |
2262 | } | |
2263 | } | |
2264 | if (optind < argc) | |
2265 | { | |
2266 | for ( ; optind < argc; optind++) | |
2267 | { | |
2268 | demangle_it (argv[optind]); | |
f9b5584c FF |
2269 | } |
2270 | } | |
2271 | else | |
2272 | { | |
2273 | while (gets (mangled_name)) | |
2274 | { | |
2275 | demangle_it (mangled_name); | |
2276 | } | |
2277 | } | |
dd3b648e | 2278 | } |
f9b5584c | 2279 | |
2dbde378 | 2280 | #endif /* main */ |