1 /* Demangler for GNU C++
2 Copyright 1989, 1991, 1994, 1995, 1996 Free Software Foundation, Inc.
3 Written by James Clark (jjc@jclark.uucp)
4 Rewritten by Fred Fish (fnf@cygnus.com) for ARM and Lucid demangling
6 This file is part of the libiberty library.
7 Libiberty is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Library General Public
9 License as published by the Free Software Foundation; either
10 version 2 of the License, or (at your option) any later version.
12 Libiberty is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Library General Public License for more details.
17 You should have received a copy of the GNU Library General Public
18 License along with libiberty; see the file COPYING.LIB. If
19 not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
22 /* This file exports two functions; cplus_mangle_opname and cplus_demangle.
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
33 #undef CURRENT_DEMANGLING_STYLE
34 #define CURRENT_DEMANGLING_STYLE work->options
36 extern char *xmalloc PARAMS((unsigned));
37 extern char *xrealloc PARAMS((char *, unsigned));
43 register char *p = s1;
44 register int len = strlen (s2);
46 for (; (p = strchr (p, *s2)) != 0; p++)
48 if (strncmp (p, s2, len) == 0)
56 /* In order to allow a single demangler executable to demangle strings
57 using various common values of CPLUS_MARKER, as well as any specific
58 one set at compile time, we maintain a string containing all the
59 commonly used ones, and check to see if the marker we are looking for
60 is in that string. CPLUS_MARKER is usually '$' on systems where the
61 assembler can deal with that. Where the assembler can't, it's usually
62 '.' (but on many systems '.' is used for other things). We put the
63 current defined CPLUS_MARKER first (which defaults to '$'), followed
64 by the next most common value, followed by an explicit '$' in case
65 the value of CPLUS_MARKER is not '$'.
67 We could avoid this if we could just get g++ to tell us what the actual
68 cplus marker character is as part of the debug information, perhaps by
69 ensuring that it is the character that terminates the gcc<n>_compiled
70 marker symbol (FIXME). */
72 #if !defined (CPLUS_MARKER)
73 #define CPLUS_MARKER '$'
76 enum demangling_styles current_demangling_style = gnu_demangling;
78 static char cplus_markers[] = { CPLUS_MARKER, '.', '$', '\0' };
81 set_cplus_marker_for_demangling (ch)
84 cplus_markers[0] = ch;
87 /* Stuff that is shared between sub-routines.
88 Using a shared structure allows cplus_demangle to be reentrant. */
98 int static_type; /* A static member function */
99 int const_type; /* A const member function */
102 #define PRINT_ANSI_QUALIFIERS (work -> options & DMGL_ANSI)
103 #define PRINT_ARG_TYPES (work -> options & DMGL_PARAMS)
105 static const struct optable
111 {"nw", " new", DMGL_ANSI}, /* new (1.92, ansi) */
112 {"dl", " delete", DMGL_ANSI}, /* new (1.92, ansi) */
113 {"new", " new", 0}, /* old (1.91, and 1.x) */
114 {"delete", " delete", 0}, /* old (1.91, and 1.x) */
115 {"vn", " new []", DMGL_ANSI}, /* GNU, pending ansi */
116 {"vd", " delete []", DMGL_ANSI}, /* GNU, pending ansi */
117 {"as", "=", DMGL_ANSI}, /* ansi */
118 {"ne", "!=", DMGL_ANSI}, /* old, ansi */
119 {"eq", "==", DMGL_ANSI}, /* old, ansi */
120 {"ge", ">=", DMGL_ANSI}, /* old, ansi */
121 {"gt", ">", DMGL_ANSI}, /* old, ansi */
122 {"le", "<=", DMGL_ANSI}, /* old, ansi */
123 {"lt", "<", DMGL_ANSI}, /* old, ansi */
124 {"plus", "+", 0}, /* old */
125 {"pl", "+", DMGL_ANSI}, /* ansi */
126 {"apl", "+=", DMGL_ANSI}, /* ansi */
127 {"minus", "-", 0}, /* old */
128 {"mi", "-", DMGL_ANSI}, /* ansi */
129 {"ami", "-=", DMGL_ANSI}, /* ansi */
130 {"mult", "*", 0}, /* old */
131 {"ml", "*", DMGL_ANSI}, /* ansi */
132 {"amu", "*=", DMGL_ANSI}, /* ansi (ARM/Lucid) */
133 {"aml", "*=", DMGL_ANSI}, /* ansi (GNU/g++) */
134 {"convert", "+", 0}, /* old (unary +) */
135 {"negate", "-", 0}, /* old (unary -) */
136 {"trunc_mod", "%", 0}, /* old */
137 {"md", "%", DMGL_ANSI}, /* ansi */
138 {"amd", "%=", DMGL_ANSI}, /* ansi */
139 {"trunc_div", "/", 0}, /* old */
140 {"dv", "/", DMGL_ANSI}, /* ansi */
141 {"adv", "/=", DMGL_ANSI}, /* ansi */
142 {"truth_andif", "&&", 0}, /* old */
143 {"aa", "&&", DMGL_ANSI}, /* ansi */
144 {"truth_orif", "||", 0}, /* old */
145 {"oo", "||", DMGL_ANSI}, /* ansi */
146 {"truth_not", "!", 0}, /* old */
147 {"nt", "!", DMGL_ANSI}, /* ansi */
148 {"postincrement","++", 0}, /* old */
149 {"pp", "++", DMGL_ANSI}, /* ansi */
150 {"postdecrement","--", 0}, /* old */
151 {"mm", "--", DMGL_ANSI}, /* ansi */
152 {"bit_ior", "|", 0}, /* old */
153 {"or", "|", DMGL_ANSI}, /* ansi */
154 {"aor", "|=", DMGL_ANSI}, /* ansi */
155 {"bit_xor", "^", 0}, /* old */
156 {"er", "^", DMGL_ANSI}, /* ansi */
157 {"aer", "^=", DMGL_ANSI}, /* ansi */
158 {"bit_and", "&", 0}, /* old */
159 {"ad", "&", DMGL_ANSI}, /* ansi */
160 {"aad", "&=", DMGL_ANSI}, /* ansi */
161 {"bit_not", "~", 0}, /* old */
162 {"co", "~", DMGL_ANSI}, /* ansi */
163 {"call", "()", 0}, /* old */
164 {"cl", "()", DMGL_ANSI}, /* ansi */
165 {"alshift", "<<", 0}, /* old */
166 {"ls", "<<", DMGL_ANSI}, /* ansi */
167 {"als", "<<=", DMGL_ANSI}, /* ansi */
168 {"arshift", ">>", 0}, /* old */
169 {"rs", ">>", DMGL_ANSI}, /* ansi */
170 {"ars", ">>=", DMGL_ANSI}, /* ansi */
171 {"component", "->", 0}, /* old */
172 {"pt", "->", DMGL_ANSI}, /* ansi; Lucid C++ form */
173 {"rf", "->", DMGL_ANSI}, /* ansi; ARM/GNU form */
174 {"indirect", "*", 0}, /* old */
175 {"method_call", "->()", 0}, /* old */
176 {"addr", "&", 0}, /* old (unary &) */
177 {"array", "[]", 0}, /* old */
178 {"vc", "[]", DMGL_ANSI}, /* ansi */
179 {"compound", ", ", 0}, /* old */
180 {"cm", ", ", DMGL_ANSI}, /* ansi */
181 {"cond", "?:", 0}, /* old */
182 {"cn", "?:", DMGL_ANSI}, /* pseudo-ansi */
183 {"max", ">?", 0}, /* old */
184 {"mx", ">?", DMGL_ANSI}, /* pseudo-ansi */
185 {"min", "<?", 0}, /* old */
186 {"mn", "<?", DMGL_ANSI}, /* pseudo-ansi */
187 {"nop", "", 0}, /* old (for operator=) */
188 {"rm", "->*", DMGL_ANSI} /* ansi */
192 typedef struct string /* Beware: these aren't required to be */
193 { /* '\0' terminated. */
194 char *b; /* pointer to start of string */
195 char *p; /* pointer after last character */
196 char *e; /* pointer after end of allocated space */
199 #define STRING_EMPTY(str) ((str) -> b == (str) -> p)
200 #define PREPEND_BLANK(str) {if (!STRING_EMPTY(str)) \
201 string_prepend(str, " ");}
202 #define APPEND_BLANK(str) {if (!STRING_EMPTY(str)) \
203 string_append(str, " ");}
205 #define ARM_VTABLE_STRING "__vtbl__" /* Lucid/ARM virtual table prefix */
206 #define ARM_VTABLE_STRLEN 8 /* strlen (ARM_VTABLE_STRING) */
208 /* Prototypes for local functions */
211 mop_up PARAMS ((struct work_stuff *, string *, int));
215 demangle_method_args PARAMS ((struct work_stuff *work, const char **, string *));
219 demangle_template PARAMS ((struct work_stuff *work, const char **, string *,
223 demangle_qualified PARAMS ((struct work_stuff *, const char **, string *,
227 demangle_class PARAMS ((struct work_stuff *, const char **, string *));
230 demangle_fund_type PARAMS ((struct work_stuff *, const char **, string *));
233 demangle_signature PARAMS ((struct work_stuff *, const char **, string *));
236 demangle_prefix PARAMS ((struct work_stuff *, const char **, string *));
239 gnu_special PARAMS ((struct work_stuff *, const char **, string *));
242 arm_special PARAMS ((struct work_stuff *, const char **, string *));
245 string_need PARAMS ((string *, int));
248 string_delete PARAMS ((string *));
251 string_init PARAMS ((string *));
254 string_clear PARAMS ((string *));
258 string_empty PARAMS ((string *));
262 string_append PARAMS ((string *, const char *));
265 string_appends PARAMS ((string *, string *));
268 string_appendn PARAMS ((string *, const char *, int));
271 string_prepend PARAMS ((string *, const char *));
274 string_prependn PARAMS ((string *, const char *, int));
277 get_count PARAMS ((const char **, int *));
280 consume_count PARAMS ((const char **));
283 demangle_args PARAMS ((struct work_stuff *, const char **, string *));
286 do_type PARAMS ((struct work_stuff *, const char **, string *));
289 do_arg PARAMS ((struct work_stuff *, const char **, string *));
292 demangle_function_name PARAMS ((struct work_stuff *, const char **, string *,
296 remember_type PARAMS ((struct work_stuff *, const char *, int));
299 forget_types PARAMS ((struct work_stuff *));
302 string_prepends PARAMS ((string *, string *));
304 /* Translate count to integer, consuming tokens in the process.
305 Conversion terminates on the first non-digit character.
306 Trying to consume something that isn't a count results in
307 no consumption of input and a return of 0. */
315 while (isdigit (**type))
318 count += **type - '0';
325 cplus_demangle_opname (opname, result, options)
330 int len, i, len1, ret;
332 struct work_stuff work[1];
335 len = strlen(opname);
338 work->options = options;
340 if (opname[0] == '_' && opname[1] == '_'
341 && opname[2] == 'o' && opname[3] == 'p')
344 /* type conversion operator. */
346 if (do_type (work, &tem, &type))
348 strcat (result, "operator ");
349 strncat (result, type.b, type.p - type.b);
350 string_delete (&type);
354 else if (opname[0] == '_' && opname[1] == '_'
355 && opname[2] >= 'a' && opname[2] <= 'z'
356 && opname[3] >= 'a' && opname[3] <= 'z')
358 if (opname[4] == '\0')
361 for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++)
363 if (strlen (optable[i].in) == 2
364 && memcmp (optable[i].in, opname + 2, 2) == 0)
366 strcat (result, "operator");
367 strcat (result, optable[i].out);
375 if (opname[2] == 'a' && opname[5] == '\0')
378 for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++)
380 if (strlen (optable[i].in) == 3
381 && memcmp (optable[i].in, opname + 2, 3) == 0)
383 strcat (result, "operator");
384 strcat (result, optable[i].out);
395 && strchr (cplus_markers, opname[2]) != NULL)
397 /* see if it's an assignment expression */
398 if (len >= 10 /* op$assign_ */
399 && memcmp (opname + 3, "assign_", 7) == 0)
401 for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++)
404 if (strlen (optable[i].in) == len1
405 && memcmp (optable[i].in, opname + 10, len1) == 0)
407 strcat (result, "operator");
408 strcat (result, optable[i].out);
409 strcat (result, "=");
417 for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++)
420 if (strlen (optable[i].in) == len1
421 && memcmp (optable[i].in, opname + 3, len1) == 0)
423 strcat (result, "operator");
424 strcat (result, optable[i].out);
431 else if (len >= 5 && memcmp (opname, "type", 4) == 0
432 && strchr (cplus_markers, opname[4]) != NULL)
434 /* type conversion operator */
436 if (do_type (work, &tem, &type))
438 strcat (result, "operator ");
439 strncat (result, type.b, type.p - type.b);
440 string_delete (&type);
447 /* Takes operator name as e.g. "++" and returns mangled
448 operator name (e.g. "postincrement_expr"), or NULL if not found.
450 If OPTIONS & DMGL_ANSI == 1, return the ANSI name;
451 if OPTIONS & DMGL_ANSI == 0, return the old GNU name. */
454 cplus_mangle_opname (opname, options)
461 len = strlen (opname);
462 for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++)
464 if (strlen (optable[i].out) == len
465 && (options & DMGL_ANSI) == (optable[i].flags & DMGL_ANSI)
466 && memcmp (optable[i].out, opname, len) == 0)
467 return optable[i].in;
472 /* Check to see whether MANGLED can match TEXT in the first TEXT_LEN
475 int cplus_match (mangled, text, text_len)
480 if (strncmp (mangled, text, text_len) != 0) {
481 return(0); /* cannot match either */
483 return(1); /* matches mangled, may match demangled */
487 /* char *cplus_demangle (const char *mangled, int options)
489 If MANGLED is a mangled function name produced by GNU C++, then
490 a pointer to a malloced string giving a C++ representation
491 of the name will be returned; otherwise NULL will be returned.
492 It is the caller's responsibility to free the string which
495 The OPTIONS arg may contain one or more of the following bits:
497 DMGL_ANSI ANSI qualifiers such as `const' and `void' are
499 DMGL_PARAMS Function parameters are included.
503 cplus_demangle ("foo__1Ai", DMGL_PARAMS) => "A::foo(int)"
504 cplus_demangle ("foo__1Ai", DMGL_PARAMS | DMGL_ANSI) => "A::foo(int)"
505 cplus_demangle ("foo__1Ai", 0) => "A::foo"
507 cplus_demangle ("foo__1Afe", DMGL_PARAMS) => "A::foo(float,...)"
508 cplus_demangle ("foo__1Afe", DMGL_PARAMS | DMGL_ANSI)=> "A::foo(float,...)"
509 cplus_demangle ("foo__1Afe", 0) => "A::foo"
511 Note that any leading underscores, or other such characters prepended by
512 the compilation system, are presumed to have already been stripped from
516 cplus_demangle (mangled, options)
522 struct work_stuff work[1];
523 char *demangled = NULL;
525 if ((mangled != NULL) && (*mangled != '\0'))
527 memset ((char *) work, 0, sizeof (work));
528 work -> options = options;
529 if ((work->options & DMGL_STYLE_MASK) == 0)
530 work->options |= (int)current_demangling_style & DMGL_STYLE_MASK;
534 /* First check to see if gnu style demangling is active and if the
535 string to be demangled contains a CPLUS_MARKER. If so, attempt to
536 recognize one of the gnu special forms rather than looking for a
537 standard prefix. In particular, don't worry about whether there
538 is a "__" string in the mangled string. Consider "_$_5__foo" for
541 if ((AUTO_DEMANGLING || GNU_DEMANGLING))
543 success = gnu_special (work, &mangled, &decl);
547 success = demangle_prefix (work, &mangled, &decl);
549 if (success && (*mangled != '\0'))
551 success = demangle_signature (work, &mangled, &decl);
553 if (work->constructor == 2)
555 string_prepend(&decl, "global constructors keyed to ");
556 work->constructor = 0;
558 else if (work->destructor == 2)
560 string_prepend(&decl, "global destructors keyed to ");
561 work->destructor = 0;
563 demangled = mop_up (work, &decl, success);
569 mop_up (work, declp, success)
570 struct work_stuff *work;
574 char *demangled = NULL;
576 /* Discard the remembered types, if any. */
579 if (work -> typevec != NULL)
581 free ((char *) work -> typevec);
584 /* If demangling was successful, ensure that the demangled string is null
585 terminated and return it. Otherwise, free the demangling decl. */
589 string_delete (declp);
593 string_appendn (declp, "", 1);
594 demangled = declp -> b;
603 demangle_signature -- demangle the signature part of a mangled name
608 demangle_signature (struct work_stuff *work, const char **mangled,
613 Consume and demangle the signature portion of the mangled name.
615 DECLP is the string where demangled output is being built. At
616 entry it contains the demangled root name from the mangled name
617 prefix. I.E. either a demangled operator name or the root function
618 name. In some special cases, it may contain nothing.
620 *MANGLED points to the current unconsumed location in the mangled
621 name. As tokens are consumed and demangling is performed, the
622 pointer is updated to continuously point at the next token to
625 Demangling GNU style mangled names is nasty because there is no
626 explicit token that marks the start of the outermost function
630 demangle_signature (work, mangled, declp)
631 struct work_stuff *work;
632 const char **mangled;
638 const char *oldmangled = NULL;
642 while (success && (**mangled != '\0'))
647 oldmangled = *mangled;
648 success = demangle_qualified (work, mangled, declp, 1, 0);
651 remember_type (work, oldmangled, *mangled - oldmangled);
653 if (AUTO_DEMANGLING || GNU_DEMANGLING)
661 /* Static member function */
662 if (oldmangled == NULL)
664 oldmangled = *mangled;
667 work -> static_type = 1;
671 /* a const member function */
672 if (oldmangled == NULL)
674 oldmangled = *mangled;
677 work -> const_type = 1;
680 case '0': case '1': case '2': case '3': case '4':
681 case '5': case '6': case '7': case '8': case '9':
682 if (oldmangled == NULL)
684 oldmangled = *mangled;
686 success = demangle_class (work, mangled, declp);
689 remember_type (work, oldmangled, *mangled - oldmangled);
691 if (AUTO_DEMANGLING || GNU_DEMANGLING)
700 /* ARM style demangling includes a specific 'F' character after
701 the class name. For GNU style, it is just implied. So we can
702 safely just consume any 'F' at this point and be compatible
703 with either style. */
709 /* For lucid/ARM style we have to forget any types we might
710 have remembered up to this point, since they were not argument
711 types. GNU style considers all types seen as available for
712 back references. See comment in demangle_args() */
714 if (LUCID_DEMANGLING || ARM_DEMANGLING)
718 success = demangle_args (work, mangled, declp);
723 string_init(&trawname);
725 if (oldmangled == NULL)
727 oldmangled = *mangled;
729 success = demangle_template (work, mangled, &tname, &trawname);
732 remember_type (work, oldmangled, *mangled - oldmangled);
734 string_append(&tname, "::");
735 string_prepends(declp, &tname);
736 if (work -> destructor & 1)
738 string_prepend (&trawname, "~");
739 string_appends (declp, &trawname);
740 work->destructor -= 1;
742 if ((work->constructor & 1) || (work->destructor & 1))
744 string_appends (declp, &trawname);
745 work->constructor -= 1;
747 string_delete(&trawname);
748 string_delete(&tname);
754 /* At the outermost level, we cannot have a return type specified,
755 so if we run into another '_' at this point we are dealing with
756 a mangled name that is either bogus, or has been mangled by
757 some algorithm we don't know how to deal with. So just
758 reject the entire demangling. */
763 if (AUTO_DEMANGLING || GNU_DEMANGLING)
765 /* Assume we have stumbled onto the first outermost function
766 argument token, and start processing args. */
768 success = demangle_args (work, mangled, declp);
772 /* Non-GNU demanglers use a specific token to mark the start
773 of the outermost function argument tokens. Typically 'F',
774 for ARM-demangling, for example. So if we find something
775 we are not prepared for, it must be an error. */
781 if (AUTO_DEMANGLING || GNU_DEMANGLING)
784 if (success && expect_func)
787 success = demangle_args (work, mangled, declp);
791 if (success && !func_done)
793 if (AUTO_DEMANGLING || GNU_DEMANGLING)
795 /* With GNU style demangling, bar__3foo is 'foo::bar(void)', and
796 bar__3fooi is 'foo::bar(int)'. We get here when we find the
797 first case, and need to ensure that the '(void)' gets added to
798 the current declp. Note that with ARM, the first case
799 represents the name of a static data member 'foo::bar',
800 which is in the current declp, so we leave it alone. */
801 success = demangle_args (work, mangled, declp);
804 if (success && work -> static_type && PRINT_ARG_TYPES)
806 string_append (declp, " static");
808 if (success && work -> const_type && PRINT_ARG_TYPES)
810 string_append (declp, " const");
818 demangle_method_args (work, mangled, declp)
819 struct work_stuff *work;
820 const char **mangled;
825 if (work -> static_type)
827 string_append (declp, *mangled + 1);
828 *mangled += strlen (*mangled);
833 success = demangle_args (work, mangled, declp);
841 demangle_template (work, mangled, tname, trawname)
842 struct work_stuff *work;
843 const char **mangled;
864 /* get template name */
865 if ((r = consume_count (mangled)) == 0 || strlen (*mangled) < r)
870 string_appendn (trawname, *mangled, r);
871 string_appendn (tname, *mangled, r);
873 string_append (tname, "<");
874 /* get size of template parameter list */
875 if (!get_count (mangled, &r))
879 for (i = 0; i < r; i++)
883 string_append (tname, ", ");
885 /* Z for type parameters */
886 if (**mangled == 'Z')
889 /* temp is initialized in do_type */
890 success = do_type (work, mangled, &temp);
893 string_appends (tname, &temp);
895 string_delete(&temp);
903 /* otherwise, value parameter */
911 /* temp is initialized in do_type */
912 success = do_type (work, mangled, &temp);
916 string_appends (tname, &temp);
919 string_delete(&temp);
925 string_append (tname, "=");
927 while (*old_p && !done)
934 done = is_pointer = 1;
936 case 'C': /* const */
937 case 'S': /* explicitly signed [char] */
938 case 'U': /* unsigned */
939 case 'V': /* volatile */
940 case 'F': /* function */
941 case 'M': /* member function */
945 case 'Q': /* qualified name */
946 done = is_integral = 1;
948 case 'T': /* remembered type */
954 case 'x': /* long long */
957 case 's': /* short */
958 case 'w': /* wchar_t */
959 done = is_integral = 1;
967 case 'r': /* long double */
968 case 'd': /* double */
969 case 'f': /* float */
973 /* it's probably user defined type, let's assume
974 it's integral, it seems hard to figure out
976 done = is_integral = 1;
981 if (**mangled == 'm')
983 string_appendn (tname, "-", 1);
986 while (isdigit (**mangled))
988 string_appendn (tname, *mangled, 1);
996 if (**mangled == 'm')
998 string_appendn (tname, "-", 1);
1001 string_appendn (tname, "'", 1);
1002 val = consume_count(mangled);
1010 string_appendn (tname, &tmp[0], 1);
1011 string_appendn (tname, "'", 1);
1015 int val = consume_count (mangled);
1017 string_appendn (tname, "false", 5);
1019 string_appendn (tname, "true", 4);
1025 if (**mangled == 'm')
1027 string_appendn (tname, "-", 1);
1030 while (isdigit (**mangled))
1032 string_appendn (tname, *mangled, 1);
1035 if (**mangled == '.') /* fraction */
1037 string_appendn (tname, ".", 1);
1039 while (isdigit (**mangled))
1041 string_appendn (tname, *mangled, 1);
1045 if (**mangled == 'e') /* exponent */
1047 string_appendn (tname, "e", 1);
1049 while (isdigit (**mangled))
1051 string_appendn (tname, *mangled, 1);
1056 else if (is_pointer)
1058 symbol_len = consume_count (mangled);
1059 if (symbol_len == 0)
1064 if (symbol_len == 0)
1065 string_appendn (tname, "0", 1);
1068 char *p = xmalloc (symbol_len + 1), *q;
1069 strncpy (p, *mangled, symbol_len);
1070 p [symbol_len] = '\0';
1071 q = cplus_demangle (p, work->options);
1072 string_appendn (tname, "&", 1);
1075 string_append (tname, q);
1079 string_append (tname, p);
1082 *mangled += symbol_len;
1087 if (tname->p[-1] == '>')
1088 string_append (tname, " ");
1089 string_append (tname, ">");
1092 if (work -> static_type)
1094 string_append (declp, *mangled + 1);
1095 *mangled += strlen (*mangled);
1100 success = demangle_args (work, mangled, declp);
1108 arm_pt (work, mangled, n, anchor, args)
1109 struct work_stuff *work;
1110 const char *mangled;
1112 const char **anchor, **args;
1115 if (ARM_DEMANGLING && (*anchor = mystrstr (mangled, "__pt__")))
1118 *args = *anchor + 6;
1119 len = consume_count (args);
1120 if (*args + len == mangled + n && **args == '_')
1130 demangle_arm_pt (work, mangled, n, declp)
1131 struct work_stuff *work;
1132 const char **mangled;
1138 const char *e = *mangled + n;
1141 if (arm_pt (work, *mangled, n, &p, &args))
1145 string_appendn (declp, *mangled, p - *mangled);
1146 string_append (declp, "<");
1147 /* should do error checking here */
1149 string_clear (&arg);
1150 do_type (work, &args, &arg);
1151 string_appends (declp, &arg);
1152 string_append (declp, ",");
1154 string_delete (&arg);
1156 string_append (declp, ">");
1160 string_appendn (declp, *mangled, n);
1166 demangle_class_name (work, mangled, declp)
1167 struct work_stuff *work;
1168 const char **mangled;
1174 n = consume_count (mangled);
1175 if (strlen (*mangled) >= n)
1177 demangle_arm_pt (work, mangled, n, declp);
1188 demangle_class -- demangle a mangled class sequence
1193 demangle_class (struct work_stuff *work, const char **mangled,
1198 DECLP points to the buffer into which demangling is being done.
1200 *MANGLED points to the current token to be demangled. On input,
1201 it points to a mangled class (I.E. "3foo", "13verylongclass", etc.)
1202 On exit, it points to the next token after the mangled class on
1203 success, or the first unconsumed token on failure.
1205 If the CONSTRUCTOR or DESTRUCTOR flags are set in WORK, then
1206 we are demangling a constructor or destructor. In this case
1207 we prepend "class::class" or "class::~class" to DECLP.
1209 Otherwise, we prepend "class::" to the current DECLP.
1211 Reset the constructor/destructor flags once they have been
1212 "consumed". This allows demangle_class to be called later during
1213 the same demangling, to do normal class demangling.
1215 Returns 1 if demangling is successful, 0 otherwise.
1220 demangle_class (work, mangled, declp)
1221 struct work_stuff *work;
1222 const char **mangled;
1228 string_init (&class_name);
1229 if (demangle_class_name (work, mangled, &class_name))
1231 if ((work->constructor & 1) || (work->destructor & 1))
1233 string_prepends (declp, &class_name);
1234 if (work -> destructor & 1)
1236 string_prepend (declp, "~");
1237 work -> destructor -= 1;
1241 work -> constructor -= 1;
1244 string_prepend (declp, "::");
1245 string_prepends (declp, &class_name);
1248 string_delete (&class_name);
1256 demangle_prefix -- consume the mangled name prefix and find signature
1261 demangle_prefix (struct work_stuff *work, const char **mangled,
1266 Consume and demangle the prefix of the mangled name.
1268 DECLP points to the string buffer into which demangled output is
1269 placed. On entry, the buffer is empty. On exit it contains
1270 the root function name, the demangled operator name, or in some
1271 special cases either nothing or the completely demangled result.
1273 MANGLED points to the current pointer into the mangled name. As each
1274 token of the mangled name is consumed, it is updated. Upon entry
1275 the current mangled name pointer points to the first character of
1276 the mangled name. Upon exit, it should point to the first character
1277 of the signature if demangling was successful, or to the first
1278 unconsumed character if demangling of the prefix was unsuccessful.
1280 Returns 1 on success, 0 otherwise.
1284 demangle_prefix (work, mangled, declp)
1285 struct work_stuff *work;
1286 const char **mangled;
1293 if (strlen(*mangled) >= 11 && strncmp(*mangled, "_GLOBAL_", 8) == 0)
1295 char *marker = strchr (cplus_markers, (*mangled)[8]);
1296 if (marker != NULL && *marker == (*mangled)[10])
1298 if ((*mangled)[9] == 'D')
1300 /* it's a GNU global destructor to be executed at program exit */
1302 work->destructor = 2;
1303 if (gnu_special (work, mangled, declp))
1306 else if ((*mangled)[9] == 'I')
1308 /* it's a GNU global constructor to be executed at program init */
1310 work->constructor = 2;
1311 if (gnu_special (work, mangled, declp))
1316 else if (ARM_DEMANGLING && strncmp(*mangled, "__std__", 7) == 0)
1318 /* it's a ARM global destructor to be executed at program exit */
1320 work->destructor = 2;
1322 else if (ARM_DEMANGLING && strncmp(*mangled, "__sti__", 7) == 0)
1324 /* it's a ARM global constructor to be executed at program initial */
1326 work->constructor = 2;
1329 /* This block of code is a reduction in strength time optimization
1331 scan = mystrstr (*mangled, "__"); */
1337 scan = strchr (scan, '_');
1338 } while (scan != NULL && *++scan != '_');
1340 if (scan != NULL) --scan;
1345 /* We found a sequence of two or more '_', ensure that we start at
1346 the last pair in the sequence. */
1347 i = strspn (scan, "_");
1358 else if (work -> static_type)
1360 if (!isdigit (scan[0]) && (scan[0] != 't'))
1365 else if ((scan == *mangled) &&
1366 (isdigit (scan[2]) || (scan[2] == 'Q') || (scan[2] == 't')))
1368 /* The ARM says nothing about the mangling of local variables.
1369 But cfront mangles local variables by prepending __<nesting_level>
1370 to them. As an extension to ARM demangling we handle this case. */
1371 if ((LUCID_DEMANGLING || ARM_DEMANGLING) && isdigit (scan[2]))
1373 *mangled = scan + 2;
1374 consume_count (mangled);
1375 string_append (declp, *mangled);
1376 *mangled += strlen (*mangled);
1381 /* A GNU style constructor starts with __[0-9Qt]. But cfront uses
1382 names like __Q2_3foo3bar for nested type names. So don't accept
1383 this style of constructor for cfront demangling. */
1384 if (!(LUCID_DEMANGLING || ARM_DEMANGLING))
1385 work -> constructor += 1;
1386 *mangled = scan + 2;
1389 else if ((scan == *mangled) && !isdigit (scan[2]) && (scan[2] != 't'))
1391 /* Mangled name starts with "__". Skip over any leading '_' characters,
1392 then find the next "__" that separates the prefix from the signature.
1394 if (!(ARM_DEMANGLING || LUCID_DEMANGLING)
1395 || (arm_special (work, mangled, declp) == 0))
1397 while (*scan == '_')
1401 if ((scan = mystrstr (scan, "__")) == NULL || (*(scan + 2) == '\0'))
1403 /* No separator (I.E. "__not_mangled"), or empty signature
1404 (I.E. "__not_mangled_either__") */
1409 demangle_function_name (work, mangled, declp, scan);
1413 else if (ARM_DEMANGLING && scan[2] == 'p' && scan[3] == 't')
1415 /* Cfront-style parameterized type. Handled later as a signature. */
1419 demangle_arm_pt (work, mangled, strlen (*mangled), declp);
1421 else if (*(scan + 2) != '\0')
1423 /* Mangled name does not start with "__" but does have one somewhere
1424 in there with non empty stuff after it. Looks like a global
1426 demangle_function_name (work, mangled, declp, scan);
1430 /* Doesn't look like a mangled name */
1434 if (!success && (work->constructor == 2 || work->destructor == 2))
1436 string_append (declp, *mangled);
1437 *mangled += strlen (*mangled);
1447 gnu_special -- special handling of gnu mangled strings
1452 gnu_special (struct work_stuff *work, const char **mangled,
1458 Process some special GNU style mangling forms that don't fit
1459 the normal pattern. For example:
1461 _$_3foo (destructor for class foo)
1462 _vt$foo (foo virtual table)
1463 _vt$foo$bar (foo::bar virtual table)
1464 __vt_foo (foo virtual table, new style with thunks)
1465 _3foo$varname (static data member)
1466 _Q22rs2tu$vw (static data member)
1467 __t6vector1Zii (constructor with template)
1468 __thunk_4__$_7ostream (virtual function thunk)
1472 gnu_special (work, mangled, declp)
1473 struct work_stuff *work;
1474 const char **mangled;
1481 if ((*mangled)[0] == '_'
1482 && strchr (cplus_markers, (*mangled)[1]) != NULL
1483 && (*mangled)[2] == '_')
1485 /* Found a GNU style destructor, get past "_<CPLUS_MARKER>_" */
1487 work -> destructor += 1;
1489 else if ((*mangled)[0] == '_'
1490 && (((*mangled)[1] == '_'
1491 && (*mangled)[2] == 'v'
1492 && (*mangled)[3] == 't'
1493 && (*mangled)[4] == '_')
1494 || ((*mangled)[1] == 'v'
1495 && (*mangled)[2] == 't'
1496 && strchr (cplus_markers, (*mangled)[3]) != NULL)))
1498 /* Found a GNU style virtual table, get past "_vt<CPLUS_MARKER>"
1499 and create the decl. Note that we consume the entire mangled
1500 input string, which means that demangle_signature has no work
1502 if ((*mangled)[2] == 'v')
1503 (*mangled) += 5; /* New style, with thunks: "__vt_" */
1505 (*mangled) += 4; /* Old style, no thunks: "_vt<CPLUS_MARKER>" */
1506 while (**mangled != '\0')
1508 p = strpbrk (*mangled, cplus_markers);
1512 success = demangle_qualified (work, mangled, declp, 0, 1);
1515 success = demangle_template (work, mangled, declp, 0);
1518 if (isdigit(*mangled[0]))
1520 n = consume_count(mangled);
1524 n = strcspn (*mangled, cplus_markers);
1526 string_appendn (declp, *mangled, n);
1530 if (success && ((p == NULL) || (p == *mangled)))
1534 string_append (declp, "::");
1545 string_append (declp, " virtual table");
1547 else if ((*mangled)[0] == '_'
1548 && (strchr("0123456789Qt", (*mangled)[1]) != NULL)
1549 && (p = strpbrk (*mangled, cplus_markers)) != NULL)
1551 /* static data member, "_3foo$varname" for example */
1556 success = demangle_qualified (work, mangled, declp, 0, 1);
1559 success = demangle_template (work, mangled, declp, 0);
1562 n = consume_count (mangled);
1563 string_appendn (declp, *mangled, n);
1566 if (success && (p == *mangled))
1568 /* Consumed everything up to the cplus_marker, append the
1571 string_append (declp, "::");
1572 n = strlen (*mangled);
1573 string_appendn (declp, *mangled, n);
1581 else if (strncmp (*mangled, "__thunk_", 8) == 0)
1583 int delta = ((*mangled) += 8, consume_count (mangled));
1584 char *method = cplus_demangle (++*mangled, work->options);
1588 sprintf (buf, "virtual function thunk (delta:%d) for ", -delta);
1589 string_append (declp, buf);
1590 string_append (declp, method);
1592 n = strlen (*mangled);
1600 else if (strncmp (*mangled, "__t", 3) == 0
1601 && ((*mangled)[3] == 'i' || (*mangled)[3] == 'f'))
1603 p = (*mangled)[3] == 'i' ? " type_info node" : " type_info function";
1608 success = demangle_qualified (work, mangled, declp, 0, 1);
1611 success = demangle_template (work, mangled, declp, 0);
1614 n = consume_count (mangled);
1615 string_appendn (declp, *mangled, n);
1618 if (success && **mangled != '\0')
1621 string_append (declp, p);
1634 arm_special -- special handling of ARM/lucid mangled strings
1639 arm_special (struct work_stuff *work, const char **mangled,
1645 Process some special ARM style mangling forms that don't fit
1646 the normal pattern. For example:
1648 __vtbl__3foo (foo virtual table)
1649 __vtbl__3foo__3bar (bar::foo virtual table)
1654 arm_special (work, mangled, declp)
1655 struct work_stuff *work;
1656 const char **mangled;
1663 if (strncmp (*mangled, ARM_VTABLE_STRING, ARM_VTABLE_STRLEN) == 0)
1665 /* Found a ARM style virtual table, get past ARM_VTABLE_STRING
1666 and create the decl. Note that we consume the entire mangled
1667 input string, which means that demangle_signature has no work
1669 scan = *mangled + ARM_VTABLE_STRLEN;
1670 while (*scan != '\0') /* first check it can be demangled */
1672 n = consume_count (&scan);
1675 return (0); /* no good */
1678 if (scan[0] == '_' && scan[1] == '_')
1683 (*mangled) += ARM_VTABLE_STRLEN;
1684 while (**mangled != '\0')
1686 n = consume_count (mangled);
1687 string_prependn (declp, *mangled, n);
1689 if ((*mangled)[0] == '_' && (*mangled)[1] == '_')
1691 string_prepend (declp, "::");
1695 string_append (declp, " virtual table");
1708 demangle_qualified -- demangle 'Q' qualified name strings
1713 demangle_qualified (struct work_stuff *, const char *mangled,
1714 string *result, int isfuncname, int append);
1718 Demangle a qualified name, such as "Q25Outer5Inner" which is
1719 the mangled form of "Outer::Inner". The demangled output is
1720 prepended or appended to the result string according to the
1721 state of the append flag.
1723 If isfuncname is nonzero, then the qualified name we are building
1724 is going to be used as a member function name, so if it is a
1725 constructor or destructor function, append an appropriate
1726 constructor or destructor name. I.E. for the above example,
1727 the result for use as a constructor is "Outer::Inner::Inner"
1728 and the result for use as a destructor is "Outer::Inner::~Inner".
1732 Numeric conversion is ASCII dependent (FIXME).
1737 demangle_qualified (work, mangled, result, isfuncname, append)
1738 struct work_stuff *work;
1739 const char **mangled;
1751 string_init (&temp);
1752 switch ((*mangled)[1])
1755 /* GNU mangled name with more than 9 classes. The count is preceded
1756 by an underscore (to distinguish it from the <= 9 case) and followed
1757 by an underscore. */
1759 qualifiers = atoi (p);
1760 if (!isdigit (*p) || *p == '0')
1763 /* Skip the digits. */
1764 while (isdigit (*p))
1782 /* The count is in a single digit. */
1783 num[0] = (*mangled)[1];
1785 qualifiers = atoi (num);
1787 /* If there is an underscore after the digit, skip it. This is
1788 said to be for ARM-qualified names, but the ARM makes no
1789 mention of such an underscore. Perhaps cfront uses one. */
1790 if ((*mangled)[2] == '_')
1805 /* Pick off the names and collect them in the temp buffer in the order
1806 in which they are found, separated by '::'. */
1808 while (qualifiers-- > 0)
1810 if (*mangled[0] == '_')
1811 *mangled = *mangled + 1;
1812 if (*mangled[0] == 't')
1814 success = demangle_template(work, mangled, &temp, 0);
1815 if (!success) break;
1819 namelength = consume_count (mangled);
1820 if (strlen (*mangled) < namelength)
1822 /* Simple sanity check failed */
1826 string_appendn (&temp, *mangled, namelength);
1827 *mangled += namelength;
1831 string_appendn (&temp, "::", 2);
1835 /* If we are using the result as a function name, we need to append
1836 the appropriate '::' separated constructor or destructor name.
1837 We do this here because this is the most convenient place, where
1838 we already have a pointer to the name and the length of the name. */
1840 if (isfuncname && (work->constructor & 1 || work->destructor & 1))
1842 string_appendn (&temp, "::", 2);
1843 if (work -> destructor & 1)
1845 string_append (&temp, "~");
1847 string_appendn (&temp, (*mangled) - namelength, namelength);
1850 /* Now either prepend the temp buffer to the result, or append it,
1851 depending upon the state of the append flag. */
1855 string_appends (result, &temp);
1859 if (!STRING_EMPTY (result))
1861 string_appendn (&temp, "::", 2);
1863 string_prepends (result, &temp);
1866 string_delete (&temp);
1874 get_count -- convert an ascii count to integer, consuming tokens
1879 get_count (const char **type, int *count)
1883 Return 0 if no conversion is performed, 1 if a string is converted.
1887 get_count (type, count)
1894 if (!isdigit (**type))
1900 *count = **type - '0';
1902 if (isdigit (**type))
1912 while (isdigit (*p));
1923 /* result will be initialised here; it will be freed on failure */
1926 do_type (work, mangled, result)
1927 struct work_stuff *work;
1928 const char **mangled;
1935 const char *remembered_type;
1939 string_init (&decl);
1940 string_init (result);
1944 while (success && !done)
1950 /* A pointer type */
1954 string_prepend (&decl, "*");
1957 /* A reference type */
1960 string_prepend (&decl, "&");
1966 const char *p = ++(*mangled);
1968 string_prepend (&decl, "(");
1969 string_append (&decl, ")[");
1970 /* Copy anything up until the next underscore (the size of the
1972 while (**mangled && **mangled != '_')
1974 if (**mangled == '_')
1976 string_appendn (&decl, p, *mangled - p);
1977 string_append (&decl, "]");
1985 /* A back reference to a previously seen type */
1988 if (!get_count (mangled, &n) || n >= work -> ntypes)
1994 remembered_type = work -> typevec[n];
1995 mangled = &remembered_type;
2002 if (!STRING_EMPTY (&decl) && decl.b[0] == '*')
2004 string_prepend (&decl, "(");
2005 string_append (&decl, ")");
2007 /* After picking off the function args, we expect to either find the
2008 function return type (preceded by an '_') or the end of the
2010 if (!demangle_args (work, mangled, &decl)
2011 || (**mangled != '_' && **mangled != '\0'))
2015 if (success && (**mangled == '_'))
2027 member = **mangled == 'M';
2029 if (!isdigit (**mangled))
2034 n = consume_count (mangled);
2035 if (strlen (*mangled) < n)
2040 string_append (&decl, ")");
2041 string_prepend (&decl, "::");
2042 string_prependn (&decl, *mangled, n);
2043 string_prepend (&decl, "(");
2047 if (**mangled == 'C')
2052 if (**mangled == 'V')
2057 if (*(*mangled)++ != 'F')
2063 if ((member && !demangle_args (work, mangled, &decl))
2064 || **mangled != '_')
2070 if (! PRINT_ANSI_QUALIFIERS)
2076 APPEND_BLANK (&decl);
2077 string_append (&decl, "const");
2081 APPEND_BLANK (&decl);
2082 string_append (&decl, "volatile");
2093 if ((*mangled)[1] == 'P')
2096 if (PRINT_ANSI_QUALIFIERS)
2098 if (!STRING_EMPTY (&decl))
2100 string_prepend (&decl, " ");
2102 string_prepend (&decl, "const");
2118 /* A qualified name, such as "Outer::Inner". */
2120 success = demangle_qualified (work, mangled, result, 0, 1);
2124 success = demangle_fund_type (work, mangled, result);
2130 if (!STRING_EMPTY (&decl))
2132 string_append (result, " ");
2133 string_appends (result, &decl);
2138 string_delete (result);
2140 string_delete (&decl);
2144 /* Given a pointer to a type string that represents a fundamental type
2145 argument (int, long, unsigned int, etc) in TYPE, a pointer to the
2146 string in which the demangled output is being built in RESULT, and
2147 the WORK structure, decode the types and add them to the result.
2152 "Sl" => "signed long"
2153 "CUs" => "const unsigned short"
2158 demangle_fund_type (work, mangled, result)
2159 struct work_stuff *work;
2160 const char **mangled;
2166 /* First pick off any type qualifiers. There can be more than one. */
2174 if (PRINT_ANSI_QUALIFIERS)
2176 APPEND_BLANK (result);
2177 string_append (result, "const");
2182 APPEND_BLANK (result);
2183 string_append (result, "unsigned");
2185 case 'S': /* signed char only */
2187 APPEND_BLANK (result);
2188 string_append (result, "signed");
2192 if (PRINT_ANSI_QUALIFIERS)
2194 APPEND_BLANK (result);
2195 string_append (result, "volatile");
2204 /* Now pick off the fundamental type. There can be only one. */
2213 APPEND_BLANK (result);
2214 string_append (result, "void");
2218 APPEND_BLANK (result);
2219 string_append (result, "long long");
2223 APPEND_BLANK (result);
2224 string_append (result, "long");
2228 APPEND_BLANK (result);
2229 string_append (result, "int");
2233 APPEND_BLANK (result);
2234 string_append (result, "short");
2238 APPEND_BLANK (result);
2239 string_append (result, "bool");
2243 APPEND_BLANK (result);
2244 string_append (result, "char");
2248 APPEND_BLANK (result);
2249 string_append (result, "wchar_t");
2253 APPEND_BLANK (result);
2254 string_append (result, "long double");
2258 APPEND_BLANK (result);
2259 string_append (result, "double");
2263 APPEND_BLANK (result);
2264 string_append (result, "float");
2268 if (!isdigit (**mangled))
2274 /* An explicit type, such as "6mytype" or "7integer" */
2285 APPEND_BLANK (result);
2286 if (!demangle_class_name (work, mangled, result)) {
2292 success = demangle_template(work,mangled, result, 0);
2302 /* `result' will be initialized in do_type; it will be freed on failure */
2305 do_arg (work, mangled, result)
2306 struct work_stuff *work;
2307 const char **mangled;
2310 const char *start = *mangled;
2312 if (!do_type (work, mangled, result))
2318 remember_type (work, start, *mangled - start);
2324 remember_type (work, start, len)
2325 struct work_stuff *work;
2331 if (work -> ntypes >= work -> typevec_size)
2333 if (work -> typevec_size == 0)
2335 work -> typevec_size = 3;
2337 (char **) xmalloc (sizeof (char *) * work -> typevec_size);
2341 work -> typevec_size *= 2;
2343 (char **) xrealloc ((char *)work -> typevec,
2344 sizeof (char *) * work -> typevec_size);
2347 tem = xmalloc (len + 1);
2348 memcpy (tem, start, len);
2350 work -> typevec[work -> ntypes++] = tem;
2353 /* Forget the remembered types, but not the type vector itself. */
2357 struct work_stuff *work;
2361 while (work -> ntypes > 0)
2363 i = --(work -> ntypes);
2364 if (work -> typevec[i] != NULL)
2366 free (work -> typevec[i]);
2367 work -> typevec[i] = NULL;
2372 /* Process the argument list part of the signature, after any class spec
2373 has been consumed, as well as the first 'F' character (if any). For
2376 "__als__3fooRT0" => process "RT0"
2377 "complexfunc5__FPFPc_PFl_i" => process "PFPc_PFl_i"
2379 DECLP must be already initialised, usually non-empty. It won't be freed
2382 Note that g++ differs significantly from ARM and lucid style mangling
2383 with regards to references to previously seen types. For example, given
2384 the source fragment:
2388 foo::foo (int, foo &ia, int, foo &ib, int, foo &ic);
2391 foo::foo (int, foo &ia, int, foo &ib, int, foo &ic) { ia = ib = ic; }
2392 void foo (int, foo &ia, int, foo &ib, int, foo &ic) { ia = ib = ic; }
2394 g++ produces the names:
2399 while lcc (and presumably other ARM style compilers as well) produces:
2401 foo__FiR3fooT1T2T1T2
2402 __ct__3fooFiR3fooT1T2T1T2
2404 Note that g++ bases it's type numbers starting at zero and counts all
2405 previously seen types, while lucid/ARM bases it's type numbers starting
2406 at one and only considers types after it has seen the 'F' character
2407 indicating the start of the function args. For lucid/ARM style, we
2408 account for this difference by discarding any previously seen types when
2409 we see the 'F' character, and subtracting one from the type number
2415 demangle_args (work, mangled, declp)
2416 struct work_stuff *work;
2417 const char **mangled;
2427 if (PRINT_ARG_TYPES)
2429 string_append (declp, "(");
2430 if (**mangled == '\0')
2432 string_append (declp, "void");
2436 while (**mangled != '_' && **mangled != '\0' && **mangled != 'e')
2438 if ((**mangled == 'N') || (**mangled == 'T'))
2440 temptype = *(*mangled)++;
2442 if (temptype == 'N')
2444 if (!get_count (mangled, &r))
2453 if (ARM_DEMANGLING && work -> ntypes >= 10)
2455 /* If we have 10 or more types we might have more than a 1 digit
2456 index so we'll have to consume the whole count here. This
2457 will lose if the next thing is a type name preceded by a
2458 count but it's impossible to demangle that case properly
2459 anyway. Eg if we already have 12 types is T12Pc "(..., type1,
2460 Pc, ...)" or "(..., type12, char *, ...)" */
2461 if ((t = consume_count(mangled)) == 0)
2468 if (!get_count (mangled, &t))
2473 if (LUCID_DEMANGLING || ARM_DEMANGLING)
2477 /* Validate the type index. Protect against illegal indices from
2478 malformed type strings. */
2479 if ((t < 0) || (t >= work -> ntypes))
2485 tem = work -> typevec[t];
2486 if (need_comma && PRINT_ARG_TYPES)
2488 string_append (declp, ", ");
2490 if (!do_arg (work, &tem, &arg))
2494 if (PRINT_ARG_TYPES)
2496 string_appends (declp, &arg);
2498 string_delete (&arg);
2504 if (need_comma & PRINT_ARG_TYPES)
2506 string_append (declp, ", ");
2508 if (!do_arg (work, mangled, &arg))
2512 if (PRINT_ARG_TYPES)
2514 string_appends (declp, &arg);
2516 string_delete (&arg);
2521 if (**mangled == 'e')
2524 if (PRINT_ARG_TYPES)
2528 string_append (declp, ",");
2530 string_append (declp, "...");
2534 if (PRINT_ARG_TYPES)
2536 string_append (declp, ")");
2542 demangle_function_name (work, mangled, declp, scan)
2543 struct work_stuff *work;
2544 const char **mangled;
2553 string_appendn (declp, (*mangled), scan - (*mangled));
2554 string_need (declp, 1);
2555 *(declp -> p) = '\0';
2557 /* Consume the function name, including the "__" separating the name
2558 from the signature. We are guaranteed that SCAN points to the
2561 (*mangled) = scan + 2;
2563 if (LUCID_DEMANGLING || ARM_DEMANGLING)
2566 /* See if we have an ARM style constructor or destructor operator.
2567 If so, then just record it, clear the decl, and return.
2568 We can't build the actual constructor/destructor decl until later,
2569 when we recover the class name from the signature. */
2571 if (strcmp (declp -> b, "__ct") == 0)
2573 work -> constructor += 1;
2574 string_clear (declp);
2577 else if (strcmp (declp -> b, "__dt") == 0)
2579 work -> destructor += 1;
2580 string_clear (declp);
2585 if (declp->p - declp->b >= 3
2586 && declp->b[0] == 'o'
2587 && declp->b[1] == 'p'
2588 && strchr (cplus_markers, declp->b[2]) != NULL)
2590 /* see if it's an assignment expression */
2591 if (declp->p - declp->b >= 10 /* op$assign_ */
2592 && memcmp (declp->b + 3, "assign_", 7) == 0)
2594 for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++)
2596 len = declp->p - declp->b - 10;
2597 if (strlen (optable[i].in) == len
2598 && memcmp (optable[i].in, declp->b + 10, len) == 0)
2600 string_clear (declp);
2601 string_append (declp, "operator");
2602 string_append (declp, optable[i].out);
2603 string_append (declp, "=");
2610 for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++)
2612 int len = declp->p - declp->b - 3;
2613 if (strlen (optable[i].in) == len
2614 && memcmp (optable[i].in, declp->b + 3, len) == 0)
2616 string_clear (declp);
2617 string_append (declp, "operator");
2618 string_append (declp, optable[i].out);
2624 else if (declp->p - declp->b >= 5 && memcmp (declp->b, "type", 4) == 0
2625 && strchr (cplus_markers, declp->b[4]) != NULL)
2627 /* type conversion operator */
2629 if (do_type (work, &tem, &type))
2631 string_clear (declp);
2632 string_append (declp, "operator ");
2633 string_appends (declp, &type);
2634 string_delete (&type);
2637 else if (declp->b[0] == '_' && declp->b[1] == '_'
2638 && declp->b[2] == 'o' && declp->b[3] == 'p')
2641 /* type conversion operator. */
2643 if (do_type (work, &tem, &type))
2645 string_clear (declp);
2646 string_append (declp, "operator ");
2647 string_appends (declp, &type);
2648 string_delete (&type);
2651 else if (declp->b[0] == '_' && declp->b[1] == '_'
2652 && declp->b[2] >= 'a' && declp->b[2] <= 'z'
2653 && declp->b[3] >= 'a' && declp->b[3] <= 'z')
2655 if (declp->b[4] == '\0')
2658 for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++)
2660 if (strlen (optable[i].in) == 2
2661 && memcmp (optable[i].in, declp->b + 2, 2) == 0)
2663 string_clear (declp);
2664 string_append (declp, "operator");
2665 string_append (declp, optable[i].out);
2672 if (declp->b[2] == 'a' && declp->b[5] == '\0')
2675 for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++)
2677 if (strlen (optable[i].in) == 3
2678 && memcmp (optable[i].in, declp->b + 2, 3) == 0)
2680 string_clear (declp);
2681 string_append (declp, "operator");
2682 string_append (declp, optable[i].out);
2691 /* a mini string-handling package */
2706 s->p = s->b = xmalloc (n);
2709 else if (s->e - s->p < n)
2714 s->b = xrealloc (s->b, n);
2727 s->b = s->e = s->p = NULL;
2735 s->b = s->p = s->e = NULL;
2751 return (s->b == s->p);
2757 string_append (p, s)
2762 if (s == NULL || *s == '\0')
2766 memcpy (p->p, s, n);
2771 string_appends (p, s)
2780 memcpy (p->p, s->b, n);
2786 string_appendn (p, s, n)
2794 memcpy (p->p, s, n);
2800 string_prepend (p, s)
2804 if (s != NULL && *s != '\0')
2806 string_prependn (p, s, strlen (s));
2811 string_prepends (p, s)
2816 string_prependn (p, s->b, s->p - s->b);
2821 string_prependn (p, s, n)
2831 for (q = p->p - 1; q >= p->b; q--)
2835 memcpy (p->b, s, n);
2840 /* To generate a standalone demangler program for testing purposes,
2841 just compile and link this file with -DMAIN and libiberty.a. When
2842 run, it demangles each command line arg, or each stdin string, and
2843 prints the result on stdout. */
2848 demangle_it (mangled_name)
2853 result = cplus_demangle (mangled_name, DMGL_PARAMS | DMGL_ANSI);
2856 printf ("%s\n", mangled_name);
2860 printf ("%s\n", result);
2867 static char *program_name;
2868 static char *program_version = VERSION;
2871 usage (stream, status)
2876 Usage: %s [-_] [-n] [-s {gnu,lucid,arm}] [--strip-underscores]\n\
2877 [--no-strip-underscores] [--format={gnu,lucid,arm}]\n\
2878 [--help] [--version] [arg...]\n",
2883 #define MBUF_SIZE 512
2884 char mbuffer[MBUF_SIZE];
2886 /* Defined in the automatically-generated underscore.c. */
2887 extern int prepends_underscore;
2889 int strip_underscore = 0;
2891 static struct option long_options[] = {
2892 {"strip-underscores", no_argument, 0, '_'},
2893 {"format", required_argument, 0, 's'},
2894 {"help", no_argument, 0, 'h'},
2895 {"no-strip-underscores", no_argument, 0, 'n'},
2896 {"version", no_argument, 0, 'v'},
2897 {0, no_argument, 0, 0}
2908 program_name = argv[0];
2910 strip_underscore = prepends_underscore;
2912 while ((c = getopt_long (argc, argv, "_ns:", long_options, (int *) 0)) != EOF)
2922 strip_underscore = 0;
2925 printf ("GNU %s version %s\n", program_name, program_version);
2928 strip_underscore = 1;
2931 if (strcmp (optarg, "gnu") == 0)
2933 current_demangling_style = gnu_demangling;
2935 else if (strcmp (optarg, "lucid") == 0)
2937 current_demangling_style = lucid_demangling;
2939 else if (strcmp (optarg, "arm") == 0)
2941 current_demangling_style = arm_demangling;
2945 fprintf (stderr, "%s: unknown demangling style `%s'\n",
2946 program_name, optarg);
2955 for ( ; optind < argc; optind++)
2957 demangle_it (argv[optind]);
2966 /* Try to read a label. */
2967 while (c != EOF && (isalnum(c) || c == '_' || c == '$' || c == '.'))
2969 if (i >= MBUF_SIZE-1)
2978 if (mbuffer[0] == '.')
2980 if (strip_underscore && mbuffer[skip_first] == '_')
2988 result = cplus_demangle (mbuffer + skip_first,
2989 DMGL_PARAMS | DMGL_ANSI);
2992 if (mbuffer[0] == '.')
2994 fputs (result, stdout);
2998 fputs (mbuffer, stdout);
3015 fprintf (stderr, "%s: %s\n", program_name, str);
3026 register char *value = (char *) malloc (size);
3028 fatal ("virtual memory exhausted");
3033 xrealloc (ptr, size)
3037 register char *value = (char *) realloc (ptr, size);
3039 fatal ("virtual memory exhausted");