1 /*
2 * Copyright (c) 2009 Apple Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28
29 #if !KERNEL
30
31 #include <stdlib.h>
32
33 /* This demangler is part of the C++ ABI. We don't include it directly from
34 * <cxxabi.h> so that we can avoid using C++ in the kernel linker.
35 */
36 extern char *
37 __cxa_demangle(const char* __mangled_name, char* __output_buffer,
38 size_t* __length, int* __status);
39
40 #endif /* !KERNEL */
41
42 #include "kxld_demangle.h"
43
44 /*******************************************************************************
45 *******************************************************************************/
46 const char *
kxld_demangle(const char * str,char ** buffer __unused,size_t * length __unused)47 kxld_demangle(const char *str, char **buffer __unused, size_t *length __unused)
48 {
49 #if KERNEL
50 return str;
51 #else
52 const char *rval = NULL;
53 char *demangled = NULL;
54 int status;
55
56 rval = str;
57
58 if (!buffer || !length) {
59 goto finish;
60 }
61
62 /* Symbol names in the symbol table have an extra '_' prepended to them,
63 * so we skip the first character to make the demangler happy.
64 */
65 demangled = __cxa_demangle(str + 1, *buffer, length, &status);
66 if (!demangled || status) {
67 goto finish;
68 }
69
70 *buffer = demangled;
71 rval = demangled;
72 finish:
73 return rval;
74 #endif
75 }
76