2 * Copyright (c) 2009 Kai Wang
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer
10 * in this position and unchanged.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 #include <sys/param.h>
34 #include "_libelftc.h"
36 ELFTC_VCSID("$Id: elftc_demangle.c 3296 2016-01-09 14:17:28Z jkoshy $");
39 is_mangled(const char *s, unsigned int style)
43 case ELFTC_DEM_ARM: return (is_cpp_mangled_ARM(s) ? style : 0);
44 case ELFTC_DEM_GNU2: return (is_cpp_mangled_gnu2(s) ? style : 0);
45 case ELFTC_DEM_GNU3: return (is_cpp_mangled_gnu3(s) ? style : 0);
48 /* No style or invalid style spcified, try to guess. */
49 if (is_cpp_mangled_gnu3(s))
50 return (ELFTC_DEM_GNU3);
51 if (is_cpp_mangled_gnu2(s))
52 return (ELFTC_DEM_GNU2);
53 if (is_cpp_mangled_ARM(s))
54 return (ELFTC_DEM_ARM);
56 /* Cannot be demangled. */
61 demangle(const char *s, unsigned int style, unsigned int rc)
66 case ELFTC_DEM_ARM: return (cpp_demangle_ARM(s));
67 case ELFTC_DEM_GNU2: return (cpp_demangle_gnu2(s));
68 case ELFTC_DEM_GNU3: return (cpp_demangle_gnu3(s));
76 elftc_demangle(const char *mangledname, char *buffer, size_t bufsize,
79 unsigned int style, rc;
82 style = flags & 0xFFFF;
85 if (mangledname == NULL ||
86 ((style = is_mangled(mangledname, style)) == 0)) {
91 if ((rlt = demangle(mangledname, style, rc)) == NULL) {
96 if (buffer == NULL || bufsize < strlen(rlt) + 1) {
102 strncpy(buffer, rlt, bufsize);
103 buffer[bufsize - 1] = '\0';