88 lines
2.3 KiB
C++
88 lines
2.3 KiB
C++
// ------------------------------------------------------------------------
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// kvu_debug.cpp: Debug helper functions
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// Copyright (C) 2009 Kai Vehmanen
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//
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// Attributes:
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// eca-style-version: 3
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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// ------------------------------------------------------------------------
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// References
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// - glibc manual (section "33.1 Backtraces"
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// http://www.gnu.org/software/libc/manual/html_node/index.html#toc_Debugging-Support
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <iostream>
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#ifdef HAVE_FEATURES_H
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#include <features.h>
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#endif
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using namespace std;
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/* backtrace is an GNU glibc extension and it was
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* first added to glibc 2.1 */
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#if defined(__GLIBC_PREREQ)
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#if __GLIBC_PREREQ(2,1) && defined(HAVE_EXECINFO_H)
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#include <execinfo.h>
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#include <stdio.h>
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#include <stdlib.h>
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void kvu_print_backtrace_stderr(void)
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{
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const int NUM_STACK_FRAMES = 10;
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void *array[NUM_STACK_FRAMES];
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size_t size;
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char **strings;
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size_t i;
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size = backtrace (array, NUM_STACK_FRAMES);
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strings = backtrace_symbols (array, size);
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cerr <<
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"-----------------------------------------------------------------------"
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<< endl
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<< "Function call backtrace ("
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<< size
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<< " frames):" << endl;
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for (i = 0; i < size; i++)
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cerr << " " << i << ": " << strings[i] << endl;
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free (strings);
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cerr <<
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"-----------------------------------------------------------------------"
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<< endl;
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}
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#endif
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#else
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/* non-glibc case */
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void kvu_print_backtrace_stderr(void)
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{
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cout << "ERROR (kvu_print_backtrace_stderr): backtrace printing only supported with glibc" << endl;
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}
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#endif
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