d297901615258460d6ace623259d90b9dd2009c5
[m6w6/libmemcached] / libmemcached / backtrace.cc
1 /* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
2 *
3 * libmcachedd client library.
4 *
5 * Copyright (C) 2011 Data Differential, http://datadifferential.com/
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are
10 * met:
11 *
12 * * Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * * Redistributions in binary form must reproduce the above
16 * copyright notice, this list of conditions and the following disclaimer
17 * in the documentation and/or other materials provided with the
18 * distribution.
19 *
20 * * The names of its contributors may not be used to endorse or
21 * promote products derived from this software without specific prior
22 * written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
25 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
26 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
27 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
28 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
29 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
30 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
31 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
32 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
33 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
34 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35 *
36 */
37
38 #include <libmemcached/common.h>
39
40 #ifdef HAVE_EXECINFO_H
41 # include <execinfo.h>
42 #endif
43
44 #ifdef HAVE_GCC_ABI_DEMANGLE
45 # include <cxxabi.h>
46 #endif
47
48 #ifdef HAVE_DLFCN_H
49 # include <dlfcn.h>
50 #endif
51
52 #ifdef HAVE_GCC_ABI_DEMANGLE
53 # define USE_DEMANGLE 1
54 #else
55 # define USE_DEMANGLE 0
56 #endif
57
58 const int MAX_DEPTH= 50;
59
60 void custom_backtrace(void)
61 {
62 #ifdef HAVE_EXECINFO_H
63 void *array[MAX_DEPTH];
64
65 int backtrace_size= backtrace(array, MAX_DEPTH);
66 fprintf(stderr, "Number of stack frames obtained: %d\n", backtrace_size);
67
68 #ifdef HAVE_DLFCN_H
69 Dl_info dlinfo;
70 #endif
71
72 for (int x= 0; x < backtrace_size; ++x)
73 {
74 #ifdef HAVE_DLFCN_H
75 if (dladdr(array[x], &dlinfo) == 0)
76 {
77 continue;
78 }
79 #endif
80
81 const char* symname= dlinfo.dli_sname;
82
83 int status;
84 char* demangled= abi::__cxa_demangle(symname, NULL, 0, &status);
85 if (status == 0 and demangled)
86 {
87 symname= demangled;
88 }
89
90 printf("object: %s, function: %s\n", dlinfo.dli_fname, symname);
91
92 if (demangled)
93 {
94 free(demangled);
95 }
96 }
97 #endif // HAVE_EXECINFO_H
98 }