| 1 | /* demangle.c -- A wrapper calling libiberty cplus_demangle |
| 2 | Copyright 2002, 2003 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GNU Binutils. |
| 5 | |
| 6 | This program is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 2 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program; if not, write to the Free Software |
| 18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA |
| 19 | 02111-1307, USA. */ |
| 20 | |
| 21 | #include "config.h" |
| 22 | #include <stdlib.h> |
| 23 | #ifdef HAVE_STRING_H |
| 24 | #include <string.h> |
| 25 | #else |
| 26 | #ifdef HAVE_STRINGS_H |
| 27 | #include <strings.h> |
| 28 | #endif |
| 29 | #endif |
| 30 | #include "bfd.h" |
| 31 | #include "libiberty.h" |
| 32 | #include "demangle.h" |
| 33 | #include "budemang.h" |
| 34 | |
| 35 | /* Wrapper around cplus_demangle. Strips leading underscores and |
| 36 | other such chars that would otherwise confuse the demangler. */ |
| 37 | |
| 38 | char * |
| 39 | demangle (bfd *abfd, const char *name) |
| 40 | { |
| 41 | char *res, *alloc; |
| 42 | const char *pre, *suf; |
| 43 | size_t pre_len; |
| 44 | |
| 45 | if (abfd != NULL && bfd_get_symbol_leading_char (abfd) == name[0]) |
| 46 | ++name; |
| 47 | |
| 48 | /* This is a hack for better error reporting on XCOFF, PowerPC64-ELF |
| 49 | or the MS PE format. These formats have a number of leading '.'s |
| 50 | on at least some symbols, so we remove all dots to avoid |
| 51 | confusing the demangler. */ |
| 52 | pre = name; |
| 53 | while (*name == '.') |
| 54 | ++name; |
| 55 | pre_len = name - pre; |
| 56 | |
| 57 | alloc = NULL; |
| 58 | suf = strchr (name, '@'); |
| 59 | if (suf != NULL) |
| 60 | { |
| 61 | alloc = xmalloc (suf - name + 1); |
| 62 | memcpy (alloc, name, suf - name); |
| 63 | alloc[suf - name] = '\0'; |
| 64 | name = alloc; |
| 65 | } |
| 66 | |
| 67 | res = cplus_demangle (name, DMGL_ANSI | DMGL_PARAMS); |
| 68 | if (res != NULL) |
| 69 | { |
| 70 | /* Now put back any suffix, or stripped dots. */ |
| 71 | if (pre_len != 0 || suf != NULL) |
| 72 | { |
| 73 | size_t len; |
| 74 | size_t suf_len; |
| 75 | char *final; |
| 76 | |
| 77 | if (alloc != NULL) |
| 78 | free (alloc); |
| 79 | |
| 80 | len = strlen (res); |
| 81 | if (suf == NULL) |
| 82 | suf = res + len; |
| 83 | suf_len = strlen (suf) + 1; |
| 84 | final = xmalloc (pre_len + len + suf_len); |
| 85 | |
| 86 | memcpy (final, pre, pre_len); |
| 87 | memcpy (final + pre_len, res, len); |
| 88 | memcpy (final + pre_len + len, suf, suf_len); |
| 89 | free (res); |
| 90 | res = final; |
| 91 | } |
| 92 | |
| 93 | return res; |
| 94 | } |
| 95 | |
| 96 | if (alloc != NULL) |
| 97 | free (alloc); |
| 98 | |
| 99 | return xstrdup (pre); |
| 100 | } |