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msvcrt: Add support for vtordispex demangling.
[wine/multimedia.git] / dlls / msvcrt / undname.c
blob396a003900333b994c6d91ceaa463197b9a67483
1 /*
2 * Demangle VC++ symbols into C function prototypes
3 *
4 * Copyright 2000 Jon Griffiths
5 * 2004 Eric Pouech
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
20 */
21
22 #include "config.h"
23 #include "wine/port.h"
24
25 #include <assert.h>
26 #include <stdio.h>
27 #include <stdlib.h>
28 #include "msvcrt.h"
29
30 #include "wine/debug.h"
31
32 WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
33
34 /* TODO:
35 * - document a bit (grammar + functions)
36 * - back-port this new code into tools/winedump/msmangle.c
37 */
38
39 /* How data types modifiers are stored:
40 * M (in the following definitions) is defined for
41 * 'A', 'B', 'C' and 'D' as follows
42 * {<A>}: ""
43 * {<B>}: "const "
44 * {<C>}: "volatile "
45 * {<D>}: "const volatile "
46 *
47 * in arguments:
48 * P<M>x {<M>}x*
49 * Q<M>x {<M>}x* const
50 * A<M>x {<M>}x&
51 * in data fields:
52 * same as for arguments and also the following
53 * ?<M>x {<M>}x
54 *
55 */
56
57 struct array
58 {
59 unsigned start; /* first valid reference in array */
60 unsigned num; /* total number of used elts */
61 unsigned max;
62 unsigned alloc;
63 char** elts;
64 };
65
66 /* Structure holding a parsed symbol */
67 struct parsed_symbol
68 {
69 unsigned flags; /* the UNDNAME_ flags used for demangling */
70 malloc_func_t mem_alloc_ptr; /* internal allocator */
71 free_func_t mem_free_ptr; /* internal deallocator */
72
73 const char* current; /* pointer in input (mangled) string */
74 char* result; /* demangled string */
75
76 struct array names; /* array of names for back reference */
77 struct array stack; /* stack of parsed strings */
78
79 void* alloc_list; /* linked list of allocated blocks */
80 unsigned avail_in_first; /* number of available bytes in head block */
81 };
82
83 /* Type for parsing mangled types */
84 struct datatype_t
85 {
86 const char* left;
87 const char* right;
88 };
89
90 static BOOL symbol_demangle(struct parsed_symbol* sym);
91
92 /******************************************************************
93 * und_alloc
94 *
95 * Internal allocator. Uses a simple linked list of large blocks
96 * where we use a poor-man allocator. It's fast, and since all
97 * allocation is pool, memory management is easy (esp. freeing).
98 */
99 static void* und_alloc(struct parsed_symbol* sym, unsigned int len)
100 {
101 void* ptr;
102
103 #define BLOCK_SIZE 1024
104 #define AVAIL_SIZE (1024 - sizeof(void*))
105
106 if (len > AVAIL_SIZE)
107 {
108 /* allocate a specific block */
109 ptr = sym->mem_alloc_ptr(sizeof(void*) + len);
110 if (!ptr) return NULL;
111 *(void**)ptr = sym->alloc_list;
112 sym->alloc_list = ptr;
113 sym->avail_in_first = 0;
114 ptr = (char*)sym->alloc_list + sizeof(void*);
115 }
116 else
117 {
118 if (len > sym->avail_in_first)
119 {
120 /* add a new block */
121 ptr = sym->mem_alloc_ptr(BLOCK_SIZE);
122 if (!ptr) return NULL;
123 *(void**)ptr = sym->alloc_list;
124 sym->alloc_list = ptr;
125 sym->avail_in_first = AVAIL_SIZE;
126 }
127 /* grab memory from head block */
128 ptr = (char*)sym->alloc_list + BLOCK_SIZE - sym->avail_in_first;
129 sym->avail_in_first -= len;
130 }
131 return ptr;
132 #undef BLOCK_SIZE
133 #undef AVAIL_SIZE
134 }
135
136 /******************************************************************
137 * und_free
138 * Frees all the blocks in the list of large blocks allocated by
139 * und_alloc.
140 */
141 static void und_free_all(struct parsed_symbol* sym)
142 {
143 void* next;
144
145 while (sym->alloc_list)
146 {
147 next = *(void**)sym->alloc_list;
148 if(sym->mem_free_ptr) sym->mem_free_ptr(sym->alloc_list);
149 sym->alloc_list = next;
150 }
151 sym->avail_in_first = 0;
152 }
153
154 /******************************************************************
155 * str_array_init
156 * Initialises an array of strings
157 */
158 static void str_array_init(struct array* a)
159 {
160 a->start = a->num = a->max = a->alloc = 0;
161 a->elts = NULL;
162 }
163
164 /******************************************************************
165 * str_array_push
166 * Adding a new string to an array
167 */
168 static BOOL str_array_push(struct parsed_symbol* sym, const char* ptr, int len,
169 struct array* a)
170 {
171 char** new;
172
173 assert(ptr);
174 assert(a);
175
176 if (!a->alloc)
177 {
178 new = und_alloc(sym, (a->alloc = 32) * sizeof(a->elts[0]));
179 if (!new) return FALSE;
180 a->elts = new;
181 }
182 else if (a->max >= a->alloc)
183 {
184 new = und_alloc(sym, (a->alloc * 2) * sizeof(a->elts[0]));
185 if (!new) return FALSE;
186 memcpy(new, a->elts, a->alloc * sizeof(a->elts[0]));
187 a->alloc *= 2;
188 a->elts = new;
189 }
190 if (len == -1) len = strlen(ptr);
191 a->elts[a->num] = und_alloc(sym, len + 1);
192 assert(a->elts[a->num]);
193 memcpy(a->elts[a->num], ptr, len);
194 a->elts[a->num][len] = '\0';
195 if (++a->num >= a->max) a->max = a->num;
196 {
197 int i;
198 char c;
199
200 for (i = a->max - 1; i >= 0; i--)
201 {
202 c = '>';
203 if (i < a->start) c = '-';
204 else if (i >= a->num) c = '}';
205 TRACE("%p\t%d%c %s\n", a, i, c, a->elts[i]);
206 }
207 }
208
209 return TRUE;
210 }
211
212 /******************************************************************
213 * str_array_get_ref
214 * Extracts a reference from an existing array (doing proper type
215 * checking)
216 */
217 static char* str_array_get_ref(struct array* cref, unsigned idx)
218 {
219 assert(cref);
220 if (cref->start + idx >= cref->max)
221 {
222 WARN("Out of bounds: %p %d + %d >= %d\n",
223 cref, cref->start, idx, cref->max);
224 return NULL;
225 }
226 TRACE("Returning %p[%d] => %s\n",
227 cref, idx, cref->elts[cref->start + idx]);
228 return cref->elts[cref->start + idx];
229 }
230
231 /******************************************************************
232 * str_printf
233 * Helper for printf type of command (only %s and %c are implemented)
234 * while dynamically allocating the buffer
235 */
236 static char* str_printf(struct parsed_symbol* sym, const char* format, ...)
237 {
238 va_list args;
239 unsigned int len = 1, i, sz;
240 char* tmp;
241 char* p;
242 char* t;
243
244 va_start(args, format);
245 for (i = 0; format[i]; i++)
246 {
247 if (format[i] == '%')
248 {
249 switch (format[++i])
250 {
251 case 's': t = va_arg(args, char*); if (t) len += strlen(t); break;
252 case 'c': (void)va_arg(args, int); len++; break;
253 default: i--; /* fall through */
254 case '%': len++; break;
255 }
256 }
257 else len++;
258 }
259 va_end(args);
260 if (!(tmp = und_alloc(sym, len))) return NULL;
261 va_start(args, format);
262 for (p = tmp, i = 0; format[i]; i++)
263 {
264 if (format[i] == '%')
265 {
266 switch (format[++i])
267 {
268 case 's':
269 t = va_arg(args, char*);
270 if (t)
271 {
272 sz = strlen(t);
273 memcpy(p, t, sz);
274 p += sz;
275 }
276 break;
277 case 'c':
278 *p++ = (char)va_arg(args, int);
279 break;
280 default: i--; /* fall through */
281 case '%': *p++ = '%'; break;
282 }
283 }
284 else *p++ = format[i];
285 }
286 va_end(args);
287 *p = '\0';
288 return tmp;
289 }
290
291 /* forward declaration */
292 static BOOL demangle_datatype(struct parsed_symbol* sym, struct datatype_t* ct,
293 struct array* pmt, BOOL in_args);
294
295 static const char* get_number(struct parsed_symbol* sym)
296 {
297 char* ptr;
298 BOOL sgn = FALSE;
299
300 if (*sym->current == '?')
301 {
302 sgn = TRUE;
303 sym->current++;
304 }
305 if (*sym->current >= '0' && *sym->current <= '8')
306 {
307 ptr = und_alloc(sym, 3);
308 if (sgn) ptr[0] = '-';
309 ptr[sgn ? 1 : 0] = *sym->current + 1;
310 ptr[sgn ? 2 : 1] = '\0';
311 sym->current++;
312 }
313 else if (*sym->current == '9')
314 {
315 ptr = und_alloc(sym, 4);
316 if (sgn) ptr[0] = '-';
317 ptr[sgn ? 1 : 0] = '1';
318 ptr[sgn ? 2 : 1] = '0';
319 ptr[sgn ? 3 : 2] = '\0';
320 sym->current++;
321 }
322 else if (*sym->current >= 'A' && *sym->current <= 'P')
323 {
324 int ret = 0;
325
326 while (*sym->current >= 'A' && *sym->current <= 'P')
327 {
328 ret *= 16;
329 ret += *sym->current++ - 'A';
330 }
331 if (*sym->current != '@') return NULL;
332
333 ptr = und_alloc(sym, 17);
334 sprintf(ptr, "%s%u", sgn ? "-" : "", ret);
335 sym->current++;
336 }
337 else return NULL;
338 return ptr;
339 }
340
341 /******************************************************************
342 * get_args
343 * Parses a list of function/method arguments, creates a string corresponding
344 * to the arguments' list.
345 */
346 static char* get_args(struct parsed_symbol* sym, struct array* pmt_ref, BOOL z_term,
347 char open_char, char close_char)
348
349 {
350 struct datatype_t ct;
351 struct array arg_collect;
352 char* args_str = NULL;
353 char* last;
354 unsigned int i;
355
356 str_array_init(&arg_collect);
357
358 /* Now come the function arguments */
359 while (*sym->current)
360 {
361 /* Decode each data type and append it to the argument list */
362 if (*sym->current == '@')
363 {
364 sym->current++;
365 break;
366 }
367 if (!demangle_datatype(sym, &ct, pmt_ref, TRUE))
368 return NULL;
369 /* 'void' terminates an argument list in a function */
370 if (z_term && !strcmp(ct.left, "void")) break;
371 if (!str_array_push(sym, str_printf(sym, "%s%s", ct.left, ct.right), -1,
372 &arg_collect))
373 return NULL;
374 if (!strcmp(ct.left, "...")) break;
375 }
376 /* Functions are always terminated by 'Z'. If we made it this far and
377 * don't find it, we have incorrectly identified a data type.
378 */
379 if (z_term && *sym->current++ != 'Z') return NULL;
380
381 if (arg_collect.num == 0 ||
382 (arg_collect.num == 1 && !strcmp(arg_collect.elts[0], "void")))
383 return str_printf(sym, "%cvoid%c", open_char, close_char);
384 for (i = 1; i < arg_collect.num; i++)
385 {
386 args_str = str_printf(sym, "%s,%s", args_str, arg_collect.elts[i]);
387 }
388
389 last = args_str ? args_str : arg_collect.elts[0];
390 if (close_char == '>' && last[strlen(last) - 1] == '>')
391 args_str = str_printf(sym, "%c%s%s %c",
392 open_char, arg_collect.elts[0], args_str, close_char);
393 else
394 args_str = str_printf(sym, "%c%s%s%c",
395 open_char, arg_collect.elts[0], args_str, close_char);
396
397 return args_str;
398 }
399
400 /******************************************************************
401 * get_modifier
402 * Parses the type modifier. Always returns static strings.
403 */
404 static BOOL get_modifier(struct parsed_symbol *sym, const char **ret, const char **ptr_modif)
405 {
406 *ptr_modif = NULL;
407 if (*sym->current == 'E')
408 {
409 *ptr_modif = "__ptr64";
410 sym->current++;
411 }
412 switch (*sym->current++)
413 {
414 case 'A': *ret = NULL; break;
415 case 'B': *ret = "const"; break;
416 case 'C': *ret = "volatile"; break;
417 case 'D': *ret = "const volatile"; break;
418 default: return FALSE;
419 }
420 return TRUE;
421 }
422
423 static BOOL get_modified_type(struct datatype_t *ct, struct parsed_symbol* sym,
424 struct array *pmt_ref, char modif, BOOL in_args)
425 {
426 const char* modifier;
427 const char* str_modif;
428 const char *ptr_modif = "";
429
430 if (*sym->current == 'E')
431 {
432 ptr_modif = " __ptr64";
433 sym->current++;
434 }
435
436 switch (modif)
437 {
438 case 'A': str_modif = str_printf(sym, " &%s", ptr_modif); break;
439 case 'B': str_modif = str_printf(sym, " &%s volatile", ptr_modif); break;
440 case 'P': str_modif = str_printf(sym, " *%s", ptr_modif); break;
441 case 'Q': str_modif = str_printf(sym, " *%s const", ptr_modif); break;
442 case 'R': str_modif = str_printf(sym, " *%s volatile", ptr_modif); break;
443 case 'S': str_modif = str_printf(sym, " *%s const volatile", ptr_modif); break;
444 case '?': str_modif = ""; break;
445 default: return FALSE;
446 }
447
448 if (get_modifier(sym, &modifier, &ptr_modif))
449 {
450 unsigned mark = sym->stack.num;
451 struct datatype_t sub_ct;
452
453 /* multidimensional arrays */
454 if (*sym->current == 'Y')
455 {
456 const char* n1;
457 int num;
458
459 sym->current++;
460 if (!(n1 = get_number(sym))) return FALSE;
461 num = atoi(n1);
462
463 if (str_modif[0] == ' ' && !modifier)
464 str_modif++;
465
466 if (modifier)
467 {
468 str_modif = str_printf(sym, " (%s%s)", modifier, str_modif);
469 modifier = NULL;
470 }
471 else
472 str_modif = str_printf(sym, " (%s)", str_modif);
473
474 while (num--)
475 str_modif = str_printf(sym, "%s[%s]", str_modif, get_number(sym));
476 }
477
478 /* Recurse to get the referred-to type */
479 if (!demangle_datatype(sym, &sub_ct, pmt_ref, FALSE))
480 return FALSE;
481 if (modifier)
482 ct->left = str_printf(sym, "%s %s%s", sub_ct.left, modifier, str_modif );
483 else
484 {
485 /* don't insert a space between duplicate '*' */
486 if (!in_args && str_modif[0] && str_modif[1] == '*' && sub_ct.left[strlen(sub_ct.left)-1] == '*')
487 str_modif++;
488 ct->left = str_printf(sym, "%s%s", sub_ct.left, str_modif );
489 }
490 ct->right = sub_ct.right;
491 sym->stack.num = mark;
492 }
493 return TRUE;
494 }
495
496 /******************************************************************
497 * get_literal_string
498 * Gets the literal name from the current position in the mangled
499 * symbol to the first '@' character. It pushes the parsed name to
500 * the symbol names stack and returns a pointer to it or NULL in
501 * case of an error.
502 */
503 static char* get_literal_string(struct parsed_symbol* sym)
504 {
505 const char *ptr = sym->current;
506
507 do {
508 if (!((*sym->current >= 'A' && *sym->current <= 'Z') ||
509 (*sym->current >= 'a' && *sym->current <= 'z') ||
510 (*sym->current >= '0' && *sym->current <= '9') ||
511 *sym->current == '_' || *sym->current == '$')) {
512 TRACE("Failed at '%c' in %s\n", *sym->current, ptr);
513 return NULL;
514 }
515 } while (*++sym->current != '@');
516 sym->current++;
517 if (!str_array_push(sym, ptr, sym->current - 1 - ptr, &sym->names))
518 return NULL;
519
520 return str_array_get_ref(&sym->names, sym->names.num - sym->names.start - 1);
521 }
522
523 /******************************************************************
524 * get_template_name
525 * Parses a name with a template argument list and returns it as
526 * a string.
527 * In a template argument list the back reference to the names
528 * table is separately created. '0' points to the class component
529 * name with the template arguments. We use the same stack array
530 * to hold the names but save/restore the stack state before/after
531 * parsing the template argument list.
532 */
533 static char* get_template_name(struct parsed_symbol* sym)
534 {
535 char *name, *args;
536 unsigned num_mark = sym->names.num;
537 unsigned start_mark = sym->names.start;
538 unsigned stack_mark = sym->stack.num;
539 struct array array_pmt;
540
541 sym->names.start = sym->names.num;
542 if (!(name = get_literal_string(sym))) {
543 sym->names.start = start_mark;
544 return FALSE;
545 }
546 str_array_init(&array_pmt);
547 args = get_args(sym, &array_pmt, FALSE, '<', '>');
548 if (args != NULL)
549 name = str_printf(sym, "%s%s", name, args);
550 sym->names.num = num_mark;
551 sym->names.start = start_mark;
552 sym->stack.num = stack_mark;
553 return name;
554 }
555
556 /******************************************************************
557 * get_class
558 * Parses class as a list of parent-classes, terminated by '@' and stores the
559 * result in 'a' array. Each parent-classes, as well as the inner element
560 * (either field/method name or class name), are represented in the mangled
561 * name by a literal name ([a-zA-Z0-9_]+ terminated by '@') or a back reference
562 * ([0-9]) or a name with template arguments ('?$' literal name followed by the
563 * template argument list). The class name components appear in the reverse
564 * order in the mangled name, e.g aaa@bbb@ccc@@ will be demangled to
565 * ccc::bbb::aaa
566 * For each of these class name components a string will be allocated in the
567 * array.
568 */
569 static BOOL get_class(struct parsed_symbol* sym)
570 {
571 const char* name = NULL;
572
573 while (*sym->current != '@')
574 {
575 switch (*sym->current)
576 {
577 case '\0': return FALSE;
578
579 case '0': case '1': case '2': case '3':
580 case '4': case '5': case '6': case '7':
581 case '8': case '9':
582 name = str_array_get_ref(&sym->names, *sym->current++ - '0');
583 break;
584 case '?':
585 switch (*++sym->current)
586 {
587 case '$':
588 sym->current++;
589 if ((name = get_template_name(sym)) &&
590 !str_array_push(sym, name, -1, &sym->names))
591 return FALSE;
592 break;
593 case '?':
594 {
595 struct array stack = sym->stack;
596 unsigned int start = sym->names.start;
597 unsigned int num = sym->names.num;
598
599 str_array_init( &sym->stack );
600 if (symbol_demangle( sym )) name = str_printf( sym, "`%s'", sym->result );
601 sym->names.start = start;
602 sym->names.num = num;
603 sym->stack = stack;
604 }
605 break;
606 default:
607 if (!(name = get_number( sym ))) return FALSE;
608 name = str_printf( sym, "`%s'", name );
609 break;
610 }
611 break;
612 default:
613 name = get_literal_string(sym);
614 break;
615 }
616 if (!name || !str_array_push(sym, name, -1, &sym->stack))
617 return FALSE;
618 }
619 sym->current++;
620 return TRUE;
621 }
622
623 /******************************************************************
624 * get_class_string
625 * From an array collected by get_class in sym->stack, constructs the
626 * corresponding (allocated) string
627 */
628 static char* get_class_string(struct parsed_symbol* sym, int start)
629 {
630 int i;
631 unsigned int len, sz;
632 char* ret;
633 struct array *a = &sym->stack;
634
635 for (len = 0, i = start; i < a->num; i++)
636 {
637 assert(a->elts[i]);
638 len += 2 + strlen(a->elts[i]);
639 }
640 if (!(ret = und_alloc(sym, len - 1))) return NULL;
641 for (len = 0, i = a->num - 1; i >= start; i--)
642 {
643 sz = strlen(a->elts[i]);
644 memcpy(ret + len, a->elts[i], sz);
645 len += sz;
646 if (i > start)
647 {
648 ret[len++] = ':';
649 ret[len++] = ':';
650 }
651 }
652 ret[len] = '\0';
653 return ret;
654 }
655
656 /******************************************************************
657 * get_class_name
658 * Wrapper around get_class and get_class_string.
659 */
660 static char* get_class_name(struct parsed_symbol* sym)
661 {
662 unsigned mark = sym->stack.num;
663 char* s = NULL;
664
665 if (get_class(sym))
666 s = get_class_string(sym, mark);
667 sym->stack.num = mark;
668 return s;
669 }
670
671 /******************************************************************
672 * get_calling_convention
673 * Returns a static string corresponding to the calling convention described
674 * by char 'ch'. Sets export to TRUE iff the calling convention is exported.
675 */
676 static BOOL get_calling_convention(char ch, const char** call_conv,
677 const char** exported, unsigned flags)
678 {
679 *call_conv = *exported = NULL;
680
681 if (!(flags & (UNDNAME_NO_MS_KEYWORDS | UNDNAME_NO_ALLOCATION_LANGUAGE)))
682 {
683 if (flags & UNDNAME_NO_LEADING_UNDERSCORES)
684 {
685 if (((ch - 'A') % 2) == 1) *exported = "dll_export ";
686 switch (ch)
687 {
688 case 'A': case 'B': *call_conv = "cdecl"; break;
689 case 'C': case 'D': *call_conv = "pascal"; break;
690 case 'E': case 'F': *call_conv = "thiscall"; break;
691 case 'G': case 'H': *call_conv = "stdcall"; break;
692 case 'I': case 'J': *call_conv = "fastcall"; break;
693 case 'K': case 'L': break;
694 case 'M': *call_conv = "clrcall"; break;
695 default: ERR("Unknown calling convention %c\n", ch); return FALSE;
696 }
697 }
698 else
699 {
700 if (((ch - 'A') % 2) == 1) *exported = "__dll_export ";
701 switch (ch)
702 {
703 case 'A': case 'B': *call_conv = "__cdecl"; break;
704 case 'C': case 'D': *call_conv = "__pascal"; break;
705 case 'E': case 'F': *call_conv = "__thiscall"; break;
706 case 'G': case 'H': *call_conv = "__stdcall"; break;
707 case 'I': case 'J': *call_conv = "__fastcall"; break;
708 case 'K': case 'L': break;
709 case 'M': *call_conv = "__clrcall"; break;
710 default: ERR("Unknown calling convention %c\n", ch); return FALSE;
711 }
712 }
713 }
714 return TRUE;
715 }
716
717 /*******************************************************************
718 * get_simple_type
719 * Return a string containing an allocated string for a simple data type
720 */
721 static const char* get_simple_type(char c)
722 {
723 const char* type_string;
724
725 switch (c)
726 {
727 case 'C': type_string = "signed char"; break;
728 case 'D': type_string = "char"; break;
729 case 'E': type_string = "unsigned char"; break;
730 case 'F': type_string = "short"; break;
731 case 'G': type_string = "unsigned short"; break;
732 case 'H': type_string = "int"; break;
733 case 'I': type_string = "unsigned int"; break;
734 case 'J': type_string = "long"; break;
735 case 'K': type_string = "unsigned long"; break;
736 case 'M': type_string = "float"; break;
737 case 'N': type_string = "double"; break;
738 case 'O': type_string = "long double"; break;
739 case 'X': type_string = "void"; break;
740 case 'Z': type_string = "..."; break;
741 default: type_string = NULL; break;
742 }
743 return type_string;
744 }
745
746 /*******************************************************************
747 * get_extended_type
748 * Return a string containing an allocated string for a simple data type
749 */
750 static const char* get_extended_type(char c)
751 {
752 const char* type_string;
753
754 switch (c)
755 {
756 case 'D': type_string = "__int8"; break;
757 case 'E': type_string = "unsigned __int8"; break;
758 case 'F': type_string = "__int16"; break;
759 case 'G': type_string = "unsigned __int16"; break;
760 case 'H': type_string = "__int32"; break;
761 case 'I': type_string = "unsigned __int32"; break;
762 case 'J': type_string = "__int64"; break;
763 case 'K': type_string = "unsigned __int64"; break;
764 case 'L': type_string = "__int128"; break;
765 case 'M': type_string = "unsigned __int128"; break;
766 case 'N': type_string = "bool"; break;
767 case 'W': type_string = "wchar_t"; break;
768 default: type_string = NULL; break;
769 }
770 return type_string;
771 }
772
773 /*******************************************************************
774 * demangle_datatype
775 *
776 * Attempt to demangle a C++ data type, which may be datatype.
777 * a datatype type is made up of a number of simple types. e.g:
778 * char** = (pointer to (pointer to (char)))
779 */
780 static BOOL demangle_datatype(struct parsed_symbol* sym, struct datatype_t* ct,
781 struct array* pmt_ref, BOOL in_args)
782 {
783 char dt;
784 BOOL add_pmt = TRUE;
785
786 assert(ct);
787 ct->left = ct->right = NULL;
788
789 switch (dt = *sym->current++)
790 {
791 case '_':
792 /* MS type: __int8,__int16 etc */
793 ct->left = get_extended_type(*sym->current++);
794 break;
795 case 'C': case 'D': case 'E': case 'F': case 'G':
796 case 'H': case 'I': case 'J': case 'K': case 'M':
797 case 'N': case 'O': case 'X': case 'Z':
798 /* Simple data types */
799 ct->left = get_simple_type(dt);
800 add_pmt = FALSE;
801 break;
802 case 'T': /* union */
803 case 'U': /* struct */
804 case 'V': /* class */
805 case 'Y': /* cointerface */
806 /* Class/struct/union/cointerface */
807 {
808 const char* struct_name = NULL;
809 const char* type_name = NULL;
810
811 if (!(struct_name = get_class_name(sym)))
812 goto done;
813 if (!(sym->flags & UNDNAME_NO_COMPLEX_TYPE))
814 {
815 switch (dt)
816 {
817 case 'T': type_name = "union "; break;
818 case 'U': type_name = "struct "; break;
819 case 'V': type_name = "class "; break;
820 case 'Y': type_name = "cointerface "; break;
821 }
822 }
823 ct->left = str_printf(sym, "%s%s", type_name, struct_name);
824 }
825 break;
826 case '?':
827 /* not all the time is seems */
828 if (in_args)
829 {
830 const char* ptr;
831 if (!(ptr = get_number(sym))) goto done;
832 ct->left = str_printf(sym, "`template-parameter-%s'", ptr);
833 }
834 else
835 {
836 if (!get_modified_type(ct, sym, pmt_ref, '?', in_args)) goto done;
837 }
838 break;
839 case 'A': /* reference */
840 case 'B': /* volatile reference */
841 if (!get_modified_type(ct, sym, pmt_ref, dt, in_args)) goto done;
842 break;
843 case 'Q': /* const pointer */
844 case 'R': /* volatile pointer */
845 case 'S': /* const volatile pointer */
846 if (!get_modified_type(ct, sym, pmt_ref, in_args ? dt : 'P', in_args)) goto done;
847 break;
848 case 'P': /* Pointer */
849 if (isdigit(*sym->current))
850 {
851 /* FIXME: P6 = Function pointer, others who knows.. */
852 if (*sym->current++ == '6')
853 {
854 char* args = NULL;
855 const char* call_conv;
856 const char* exported;
857 struct datatype_t sub_ct;
858 unsigned mark = sym->stack.num;
859
860 if (!get_calling_convention(*sym->current++,
861 &call_conv, &exported,
862 sym->flags & ~UNDNAME_NO_ALLOCATION_LANGUAGE) ||
863 !demangle_datatype(sym, &sub_ct, pmt_ref, FALSE))
864 goto done;
865
866 args = get_args(sym, pmt_ref, TRUE, '(', ')');
867 if (!args) goto done;
868 sym->stack.num = mark;
869
870 ct->left = str_printf(sym, "%s%s (%s*",
871 sub_ct.left, sub_ct.right, call_conv);
872 ct->right = str_printf(sym, ")%s", args);
873 }
874 else goto done;
875 }
876 else if (!get_modified_type(ct, sym, pmt_ref, 'P', in_args)) goto done;
877 break;
878 case 'W':
879 if (*sym->current == '4')
880 {
881 char* enum_name;
882 sym->current++;
883 if (!(enum_name = get_class_name(sym)))
884 goto done;
885 if (sym->flags & UNDNAME_NO_COMPLEX_TYPE)
886 ct->left = enum_name;
887 else
888 ct->left = str_printf(sym, "enum %s", enum_name);
889 }
890 else goto done;
891 break;
892 case '0': case '1': case '2': case '3': case '4':
893 case '5': case '6': case '7': case '8': case '9':
894 /* Referring back to previously parsed type */
895 /* left and right are pushed as two separate strings */
896 ct->left = str_array_get_ref(pmt_ref, (dt - '0') * 2);
897 ct->right = str_array_get_ref(pmt_ref, (dt - '0') * 2 + 1);
898 if (!ct->left) goto done;
899 add_pmt = FALSE;
900 break;
901 case '$':
902 switch (*sym->current++)
903 {
904 case '0':
905 if (!(ct->left = get_number(sym))) goto done;
906 break;
907 case 'D':
908 {
909 const char* ptr;
910 if (!(ptr = get_number(sym))) goto done;
911 ct->left = str_printf(sym, "`template-parameter%s'", ptr);
912 }
913 break;
914 case 'F':
915 {
916 const char* p1;
917 const char* p2;
918 if (!(p1 = get_number(sym))) goto done;
919 if (!(p2 = get_number(sym))) goto done;
920 ct->left = str_printf(sym, "{%s,%s}", p1, p2);
921 }
922 break;
923 case 'G':
924 {
925 const char* p1;
926 const char* p2;
927 const char* p3;
928 if (!(p1 = get_number(sym))) goto done;
929 if (!(p2 = get_number(sym))) goto done;
930 if (!(p3 = get_number(sym))) goto done;
931 ct->left = str_printf(sym, "{%s,%s,%s}", p1, p2, p3);
932 }
933 break;
934 case 'Q':
935 {
936 const char* ptr;
937 if (!(ptr = get_number(sym))) goto done;
938 ct->left = str_printf(sym, "`non-type-template-parameter%s'", ptr);
939 }
940 break;
941 case '$':
942 if (*sym->current == 'C')
943 {
944 const char *ptr, *ptr_modif;
945
946 sym->current++;
947 if (!get_modifier(sym, &ptr, &ptr_modif)) goto done;
948 if (!demangle_datatype(sym, ct, pmt_ref, in_args)) goto done;
949 ct->left = str_printf(sym, "%s %s", ct->left, ptr);
950 }
951 break;
952 }
953 break;
954 default :
955 ERR("Unknown type %c\n", dt);
956 break;
957 }
958 if (add_pmt && pmt_ref && in_args)
959 {
960 /* left and right are pushed as two separate strings */
961 if (!str_array_push(sym, ct->left ? ct->left : "", -1, pmt_ref) ||
962 !str_array_push(sym, ct->right ? ct->right : "", -1, pmt_ref))
963 return FALSE;
964 }
965 done:
966
967 return ct->left != NULL;
968 }
969
970 /******************************************************************
971 * handle_data
972 * Does the final parsing and handling for a variable or a field in
973 * a class.
974 */
975 static BOOL handle_data(struct parsed_symbol* sym)
976 {
977 const char* access = NULL;
978 const char* member_type = NULL;
979 const char* modifier = NULL;
980 const char* ptr_modif;
981 struct datatype_t ct;
982 char* name = NULL;
983 BOOL ret = FALSE;
984
985 /* 0 private static
986 * 1 protected static
987 * 2 public static
988 * 3 private non-static
989 * 4 protected non-static
990 * 5 public non-static
991 * 6 ?? static
992 * 7 ?? static
993 */
994
995 if (!(sym->flags & UNDNAME_NO_ACCESS_SPECIFIERS))
996 {
997 /* we only print the access for static members */
998 switch (*sym->current)
999 {
1000 case '0': access = "private: "; break;
1001 case '1': access = "protected: "; break;
1002 case '2': access = "public: "; break;
1003 }
1004 }
1005
1006 if (!(sym->flags & UNDNAME_NO_MEMBER_TYPE))
1007 {
1008 if (*sym->current >= '0' && *sym->current <= '2')
1009 member_type = "static ";
1010 }
1011
1012 name = get_class_string(sym, 0);
1013
1014 switch (*sym->current++)
1015 {
1016 case '0': case '1': case '2':
1017 case '3': case '4': case '5':
1018 {
1019 unsigned mark = sym->stack.num;
1020 struct array pmt;
1021
1022 str_array_init(&pmt);
1023
1024 if (!demangle_datatype(sym, &ct, &pmt, FALSE)) goto done;
1025 if (!get_modifier(sym, &modifier, &ptr_modif)) goto done;
1026 if (modifier && ptr_modif) modifier = str_printf(sym, "%s %s", modifier, ptr_modif);
1027 else if (!modifier) modifier = ptr_modif;
1028 sym->stack.num = mark;
1029 }
1030 break;
1031 case '6' : /* compiler generated static */
1032 case '7' : /* compiler generated static */
1033 ct.left = ct.right = NULL;
1034 if (!get_modifier(sym, &modifier, &ptr_modif)) goto done;
1035 if (*sym->current != '@')
1036 {
1037 char* cls = NULL;
1038
1039 if (!(cls = get_class_name(sym)))
1040 goto done;
1041 ct.right = str_printf(sym, "{for `%s'}", cls);
1042 }
1043 break;
1044 case '8':
1045 case '9':
1046 modifier = ct.left = ct.right = NULL;
1047 break;
1048 default: goto done;
1049 }
1050 if (sym->flags & UNDNAME_NAME_ONLY) ct.left = ct.right = modifier = NULL;
1051
1052 sym->result = str_printf(sym, "%s%s%s%s%s%s%s%s", access,
1053 member_type, ct.left,
1054 modifier && ct.left ? " " : NULL, modifier,
1055 modifier || ct.left ? " " : NULL, name, ct.right);
1056 ret = TRUE;
1057 done:
1058 return ret;
1059 }
1060
1061 /******************************************************************
1062 * handle_method
1063 * Does the final parsing and handling for a function or a method in
1064 * a class.
1065 */
1066 static BOOL handle_method(struct parsed_symbol* sym, BOOL cast_op)
1067 {
1068 char accmem;
1069 const char* access = NULL;
1070 int access_id = -1;
1071 const char* member_type = NULL;
1072 struct datatype_t ct_ret;
1073 const char* call_conv;
1074 const char* modifier = NULL;
1075 const char* exported;
1076 const char* args_str = NULL;
1077 const char* name = NULL;
1078 BOOL ret = FALSE, has_args = TRUE, has_ret = TRUE;
1079 unsigned mark;
1080 struct array array_pmt;
1081
1082 /* FIXME: why 2 possible letters for each option?
1083 * 'A' private:
1084 * 'B' private:
1085 * 'C' private: static
1086 * 'D' private: static
1087 * 'E' private: virtual
1088 * 'F' private: virtual
1089 * 'G' private: thunk
1090 * 'H' private: thunk
1091 * 'I' protected:
1092 * 'J' protected:
1093 * 'K' protected: static
1094 * 'L' protected: static
1095 * 'M' protected: virtual
1096 * 'N' protected: virtual
1097 * 'O' protected: thunk
1098 * 'P' protected: thunk
1099 * 'Q' public:
1100 * 'R' public:
1101 * 'S' public: static
1102 * 'T' public: static
1103 * 'U' public: virtual
1104 * 'V' public: virtual
1105 * 'W' public: thunk
1106 * 'X' public: thunk
1107 * 'Y'
1108 * 'Z'
1109 * "$0" private: thunk vtordisp
1110 * "$1" private: thunk vtordisp
1111 * "$2" protected: thunk vtordisp
1112 * "$3" protected: thunk vtordisp
1113 * "$4" public: thunk vtordisp
1114 * "$5" public: thunk vtordisp
1115 * "$B" vcall thunk
1116 * "$R" thunk vtordispex
1117 */
1118 accmem = *sym->current++;
1119 if (accmem == '$')
1120 {
1121 if (*sym->current >= '0' && *sym->current <= '5')
1122 access_id = (*sym->current - '0') / 2;
1123 else if (*sym->current == 'R')
1124 access_id = (sym->current[1] - '0') / 2;
1125 else if (*sym->current != 'B')
1126 goto done;
1127 }
1128 else if (accmem >= 'A' && accmem <= 'Z')
1129 access_id = (accmem - 'A') / 8;
1130 else
1131 goto done;
1132
1133 switch (access_id)
1134 {
1135 case 0: access = "private: "; break;
1136 case 1: access = "protected: "; break;
1137 case 2: access = "public: "; break;
1138 }
1139 if (accmem == '$' || (accmem - 'A') % 8 == 6 || (accmem - 'A') % 8 == 7)
1140 access = str_printf(sym, "[thunk]:%s", access ? access : " ");
1141
1142 if (accmem == '$' && *sym->current != 'B')
1143 member_type = "virtual ";
1144 else if (accmem <= 'X')
1145 {
1146 switch ((accmem - 'A') % 8)
1147 {
1148 case 2: case 3: member_type = "static "; break;
1149 case 4: case 5: case 6: case 7: member_type = "virtual "; break;
1150 }
1151 }
1152
1153 if (sym->flags & UNDNAME_NO_ACCESS_SPECIFIERS)
1154 access = NULL;
1155 if (sym->flags & UNDNAME_NO_MEMBER_TYPE)
1156 member_type = NULL;
1157
1158 name = get_class_string(sym, 0);
1159
1160 if (accmem == '$' && *sym->current == 'B') /* vcall thunk */
1161 {
1162 const char *n;
1163
1164 sym->current++;
1165 n = get_number(sym);
1166
1167 if(!n || *sym->current++ != 'A') goto done;
1168 name = str_printf(sym, "%s{%s,{flat}}' }'", name, n);
1169 has_args = FALSE;
1170 has_ret = FALSE;
1171 }
1172 else if (accmem == '$' && *sym->current == 'R') /* vtordispex thunk */
1173 {
1174 const char *n1, *n2, *n3, *n4;
1175
1176 sym->current += 2;
1177 n1 = get_number(sym);
1178 n2 = get_number(sym);
1179 n3 = get_number(sym);
1180 n4 = get_number(sym);
1181
1182 if(!n1 || !n2 || !n3 || !n4) goto done;
1183 name = str_printf(sym, "%s`vtordispex{%s,%s,%s,%s}' ", name, n1, n2, n3, n4);
1184 }
1185 else if (accmem == '$') /* vtordisp thunk */
1186 {
1187 const char *n1, *n2;
1188
1189 sym->current++;
1190 n1 = get_number(sym);
1191 n2 = get_number(sym);
1192
1193 if (!n1 || !n2) goto done;
1194 name = str_printf(sym, "%s`vtordisp{%s,%s}' ", name, n1, n2);
1195 }
1196 else if ((accmem - 'A') % 8 == 6 || (accmem - 'A') % 8 == 7) /* a thunk */
1197 name = str_printf(sym, "%s`adjustor{%s}' ", name, get_number(sym));
1198
1199 if (has_args && (accmem == '$' ||
1200 (accmem <= 'X' && (accmem - 'A') % 8 != 2 && (accmem - 'A') % 8 != 3)))
1201 {
1202 const char *ptr_modif;
1203 /* Implicit 'this' pointer */
1204 /* If there is an implicit this pointer, const modifier follows */
1205 if (!get_modifier(sym, &modifier, &ptr_modif)) goto done;
1206 if (modifier || ptr_modif) modifier = str_printf(sym, "%s %s", modifier, ptr_modif);
1207 }
1208
1209 if (!get_calling_convention(*sym->current++, &call_conv, &exported,
1210 sym->flags))
1211 goto done;
1212
1213 str_array_init(&array_pmt);
1214
1215 /* Return type, or @ if 'void' */
1216 if (has_ret && *sym->current == '@')
1217 {
1218 ct_ret.left = "void";
1219 ct_ret.right = NULL;
1220 sym->current++;
1221 }
1222 else if (has_ret)
1223 {
1224 if (!demangle_datatype(sym, &ct_ret, &array_pmt, FALSE))
1225 goto done;
1226 }
1227 if (!has_ret || sym->flags & UNDNAME_NO_FUNCTION_RETURNS)
1228 ct_ret.left = ct_ret.right = NULL;
1229 if (cast_op)
1230 {
1231 name = str_printf(sym, "%s%s%s", name, ct_ret.left, ct_ret.right);
1232 ct_ret.left = ct_ret.right = NULL;
1233 }
1234
1235 mark = sym->stack.num;
1236 if (has_args && !(args_str = get_args(sym, &array_pmt, TRUE, '(', ')'))) goto done;
1237 if (sym->flags & UNDNAME_NAME_ONLY) args_str = modifier = NULL;
1238 sym->stack.num = mark;
1239
1240 /* Note: '()' after 'Z' means 'throws', but we don't care here
1241 * Yet!!! FIXME
1242 */
1243 sym->result = str_printf(sym, "%s%s%s%s%s%s%s%s%s%s%s",
1244 access, member_type, ct_ret.left,
1245 (ct_ret.left && !ct_ret.right) ? " " : NULL,
1246 call_conv, call_conv ? " " : NULL, exported,
1247 name, args_str, modifier, ct_ret.right);
1248 ret = TRUE;
1249 done:
1250 return ret;
1251 }
1252
1253 /*******************************************************************
1254 * symbol_demangle
1255 * Demangle a C++ linker symbol
1256 */
1257 static BOOL symbol_demangle(struct parsed_symbol* sym)
1258 {
1259 BOOL ret = FALSE;
1260 unsigned do_after = 0;
1261 static CHAR dashed_null[] = "--null--";
1262
1263 /* FIXME seems wrong as name, as it demangles a simple data type */
1264 if (sym->flags & UNDNAME_NO_ARGUMENTS)
1265 {
1266 struct datatype_t ct;
1267
1268 if (demangle_datatype(sym, &ct, NULL, FALSE))
1269 {
1270 sym->result = str_printf(sym, "%s%s", ct.left, ct.right);
1271 ret = TRUE;
1272 }
1273 goto done;
1274 }
1275
1276 /* MS mangled names always begin with '?' */
1277 if (*sym->current != '?') return FALSE;
1278 sym->current++;
1279
1280 /* Then function name or operator code */
1281 if (*sym->current == '?' && (sym->current[1] != '$' || sym->current[2] == '?'))
1282 {
1283 const char* function_name = NULL;
1284
1285 if (sym->current[1] == '$')
1286 {
1287 do_after = 6;
1288 sym->current += 2;
1289 }
1290
1291 /* C++ operator code (one character, or two if the first is '_') */
1292 switch (*++sym->current)
1293 {
1294 case '0': do_after = 1; break;
1295 case '1': do_after = 2; break;
1296 case '2': function_name = "operator new"; break;
1297 case '3': function_name = "operator delete"; break;
1298 case '4': function_name = "operator="; break;
1299 case '5': function_name = "operator>>"; break;
1300 case '6': function_name = "operator<<"; break;
1301 case '7': function_name = "operator!"; break;
1302 case '8': function_name = "operator=="; break;
1303 case '9': function_name = "operator!="; break;
1304 case 'A': function_name = "operator[]"; break;
1305 case 'B': function_name = "operator "; do_after = 3; break;
1306 case 'C': function_name = "operator->"; break;
1307 case 'D': function_name = "operator*"; break;
1308 case 'E': function_name = "operator++"; break;
1309 case 'F': function_name = "operator--"; break;
1310 case 'G': function_name = "operator-"; break;
1311 case 'H': function_name = "operator+"; break;
1312 case 'I': function_name = "operator&"; break;
1313 case 'J': function_name = "operator->*"; break;
1314 case 'K': function_name = "operator/"; break;
1315 case 'L': function_name = "operator%"; break;
1316 case 'M': function_name = "operator<"; break;
1317 case 'N': function_name = "operator<="; break;
1318 case 'O': function_name = "operator>"; break;
1319 case 'P': function_name = "operator>="; break;
1320 case 'Q': function_name = "operator,"; break;
1321 case 'R': function_name = "operator()"; break;
1322 case 'S': function_name = "operator~"; break;
1323 case 'T': function_name = "operator^"; break;
1324 case 'U': function_name = "operator|"; break;
1325 case 'V': function_name = "operator&&"; break;
1326 case 'W': function_name = "operator||"; break;
1327 case 'X': function_name = "operator*="; break;
1328 case 'Y': function_name = "operator+="; break;
1329 case 'Z': function_name = "operator-="; break;
1330 case '_':
1331 switch (*++sym->current)
1332 {
1333 case '0': function_name = "operator/="; break;
1334 case '1': function_name = "operator%="; break;
1335 case '2': function_name = "operator>>="; break;
1336 case '3': function_name = "operator<<="; break;
1337 case '4': function_name = "operator&="; break;
1338 case '5': function_name = "operator|="; break;
1339 case '6': function_name = "operator^="; break;
1340 case '7': function_name = "`vftable'"; break;
1341 case '8': function_name = "`vbtable'"; break;
1342 case '9': function_name = "`vcall'"; break;
1343 case 'A': function_name = "`typeof'"; break;
1344 case 'B': function_name = "`local static guard'"; break;
1345 case 'C': function_name = "`string'"; do_after = 4; break;
1346 case 'D': function_name = "`vbase destructor'"; break;
1347 case 'E': function_name = "`vector deleting destructor'"; break;
1348 case 'F': function_name = "`default constructor closure'"; break;
1349 case 'G': function_name = "`scalar deleting destructor'"; break;
1350 case 'H': function_name = "`vector constructor iterator'"; break;
1351 case 'I': function_name = "`vector destructor iterator'"; break;
1352 case 'J': function_name = "`vector vbase constructor iterator'"; break;
1353 case 'K': function_name = "`virtual displacement map'"; break;
1354 case 'L': function_name = "`eh vector constructor iterator'"; break;
1355 case 'M': function_name = "`eh vector destructor iterator'"; break;
1356 case 'N': function_name = "`eh vector vbase constructor iterator'"; break;
1357 case 'O': function_name = "`copy constructor closure'"; break;
1358 case 'R':
1359 sym->flags |= UNDNAME_NO_FUNCTION_RETURNS;
1360 switch (*++sym->current)
1361 {
1362 case '0':
1363 {
1364 struct datatype_t ct;
1365 struct array pmt;
1366
1367 sym->current++;
1368 str_array_init(&pmt);
1369 demangle_datatype(sym, &ct, &pmt, FALSE);
1370 function_name = str_printf(sym, "%s%s `RTTI Type Descriptor'",
1371 ct.left, ct.right);
1372 sym->current--;
1373 }
1374 break;
1375 case '1':
1376 {
1377 const char* n1, *n2, *n3, *n4;
1378 sym->current++;
1379 n1 = get_number(sym);
1380 n2 = get_number(sym);
1381 n3 = get_number(sym);
1382 n4 = get_number(sym);
1383 sym->current--;
1384 function_name = str_printf(sym, "`RTTI Base Class Descriptor at (%s,%s,%s,%s)'",
1385 n1, n2, n3, n4);
1386 }
1387 break;
1388 case '2': function_name = "`RTTI Base Class Array'"; break;
1389 case '3': function_name = "`RTTI Class Hierarchy Descriptor'"; break;
1390 case '4': function_name = "`RTTI Complete Object Locator'"; break;
1391 default:
1392 ERR("Unknown RTTI operator: _R%c\n", *sym->current);
1393 break;
1394 }
1395 break;
1396 case 'S': function_name = "`local vftable'"; break;
1397 case 'T': function_name = "`local vftable constructor closure'"; break;
1398 case 'U': function_name = "operator new[]"; break;
1399 case 'V': function_name = "operator delete[]"; break;
1400 case 'X': function_name = "`placement delete closure'"; break;
1401 case 'Y': function_name = "`placement delete[] closure'"; break;
1402 default:
1403 ERR("Unknown operator: _%c\n", *sym->current);
1404 return FALSE;
1405 }
1406 break;
1407 default:
1408 /* FIXME: Other operators */
1409 ERR("Unknown operator: %c\n", *sym->current);
1410 return FALSE;
1411 }
1412 sym->current++;
1413 switch (do_after)
1414 {
1415 case 1: case 2:
1416 if (!str_array_push(sym, dashed_null, -1, &sym->stack))
1417 return FALSE;
1418 break;
1419 case 4:
1420 sym->result = (char*)function_name;
1421 ret = TRUE;
1422 goto done;
1423 case 6:
1424 {
1425 char *args;
1426 struct array array_pmt;
1427
1428 str_array_init(&array_pmt);
1429 args = get_args(sym, &array_pmt, FALSE, '<', '>');
1430 if (args != NULL) function_name = str_printf(sym, "%s%s", function_name, args);
1431 sym->names.num = 0;
1432 }
1433 /* fall through */
1434 default:
1435 if (!str_array_push(sym, function_name, -1, &sym->stack))
1436 return FALSE;
1437 break;
1438 }
1439 }
1440 else if (*sym->current == '$')
1441 {
1442 /* Strange construct, it's a name with a template argument list
1443 and that's all. */
1444 sym->current++;
1445 ret = (sym->result = get_template_name(sym)) != NULL;
1446 goto done;
1447 }
1448 else if (*sym->current == '?' && sym->current[1] == '$')
1449 do_after = 5;
1450
1451 /* Either a class name, or '@' if the symbol is not a class member */
1452 switch (*sym->current)
1453 {
1454 case '@': sym->current++; break;
1455 case '$': break;
1456 default:
1457 /* Class the function is associated with, terminated by '@@' */
1458 if (!get_class(sym)) goto done;
1459 break;
1460 }
1461
1462 switch (do_after)
1463 {
1464 case 0: default: break;
1465 case 1: case 2:
1466 /* it's time to set the member name for ctor & dtor */
1467 if (sym->stack.num <= 1) goto done;
1468 if (do_after == 1)
1469 sym->stack.elts[0] = sym->stack.elts[1];
1470 else
1471 sym->stack.elts[0] = str_printf(sym, "~%s", sym->stack.elts[1]);
1472 /* ctors and dtors don't have return type */
1473 sym->flags |= UNDNAME_NO_FUNCTION_RETURNS;
1474 break;
1475 case 3:
1476 sym->flags &= ~UNDNAME_NO_FUNCTION_RETURNS;
1477 break;
1478 case 5:
1479 sym->names.start++;
1480 break;
1481 }
1482
1483 /* Function/Data type and access level */
1484 if (*sym->current >= '0' && *sym->current <= '9')
1485 ret = handle_data(sym);
1486 else if ((*sym->current >= 'A' && *sym->current <= 'Z') || *sym->current == '$')
1487 ret = handle_method(sym, do_after == 3);
1488 else ret = FALSE;
1489 done:
1490 if (ret) assert(sym->result);
1491 else WARN("Failed at %s\n", sym->current);
1492
1493 return ret;
1494 }
1495
1496 /*********************************************************************
1497 * __unDNameEx (MSVCRT.@)
1498 *
1499 * Demangle a C++ identifier.
1500 *
1501 * PARAMS
1502 * buffer [O] If not NULL, the place to put the demangled string
1503 * mangled [I] Mangled name of the function
1504 * buflen [I] Length of buffer
1505 * memget [I] Function to allocate memory with
1506 * memfree [I] Function to free memory with
1507 * unknown [?] Unknown, possibly a call back
1508 * flags [I] Flags determining demangled format
1509 *
1510 * RETURNS
1511 * Success: A string pointing to the unmangled name, allocated with memget.
1512 * Failure: NULL.
1513 */
1514 char* CDECL __unDNameEx(char* buffer, const char* mangled, int buflen,
1515 malloc_func_t memget, free_func_t memfree,
1516 void* unknown, unsigned short int flags)
1517 {
1518 struct parsed_symbol sym;
1519 const char* result;
1520
1521 TRACE("(%p,%s,%d,%p,%p,%p,%x)\n",
1522 buffer, mangled, buflen, memget, memfree, unknown, flags);
1523
1524 /* The flags details is not documented by MS. However, it looks exactly
1525 * like the UNDNAME_ manifest constants from imagehlp.h and dbghelp.h
1526 * So, we copied those (on top of the file)
1527 */
1528 memset(&sym, 0, sizeof(struct parsed_symbol));
1529 if (flags & UNDNAME_NAME_ONLY)
1530 flags |= UNDNAME_NO_FUNCTION_RETURNS | UNDNAME_NO_ACCESS_SPECIFIERS |
1531 UNDNAME_NO_MEMBER_TYPE | UNDNAME_NO_ALLOCATION_LANGUAGE |
1532 UNDNAME_NO_COMPLEX_TYPE;
1533
1534 sym.flags = flags;
1535 sym.mem_alloc_ptr = memget;
1536 sym.mem_free_ptr = memfree;
1537 sym.current = mangled;
1538 str_array_init( &sym.names );
1539 str_array_init( &sym.stack );
1540
1541 result = symbol_demangle(&sym) ? sym.result : mangled;
1542 if (buffer && buflen)
1543 {
1544 lstrcpynA( buffer, result, buflen);
1545 }
1546 else
1547 {
1548 buffer = memget(strlen(result) + 1);
1549 if (buffer) strcpy(buffer, result);
1550 }
1551
1552 und_free_all(&sym);
1553
1554 return buffer;
1555 }
1556
1557
1558 /*********************************************************************
1559 * __unDName (MSVCRT.@)
1560 */
1561 char* CDECL __unDName(char* buffer, const char* mangled, int buflen,
1562 malloc_func_t memget, free_func_t memfree,
1563 unsigned short int flags)
1564 {
1565 return __unDNameEx(buffer, mangled, buflen, memget, memfree, NULL, flags);
1566 }
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