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livetrax/libs/pbd/stacktrace.cc

72 lines
1.5 KiB
C++

/*
Copyright (C) 2000-2007 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <pbd/stacktrace.h>
#include <iostream>
void
PBD::trace_twb ()
{
}
/* Obtain a backtrace and print it to stdout. */
#ifdef HAVE_EXECINFO
#include <execinfo.h>
void
PBD::stacktrace (std::ostream& out, int levels)
{
void *array[200];
size_t size;
char **strings;
size_t i;
size = backtrace (array, 200);
strings = backtrace_symbols (array, size);
if (strings) {
printf ("Obtained %zd stack frames.\n", size);
for (i = 0; i < size && (levels == 0 || i < size_t(levels)); i++) {
out << strings[i] << std::endl;
}
free (strings);
}
}
#else
void
PBD::stacktrace (std::ostream& out, int levels)
{
out << "stack tracing is not enabled on this platform" << std::endl;
}
void
c_stacktrace ()
{
PBD::stacktrace (std::cout);
}
#endif /* HAVE_EXECINFO */