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/*
//
// Copyright 1997-2009 Torsten Rohlfing
//
// Copyright 2004-2010 SRI International
//
// This file is part of the Computational Morphometry Toolkit.
//
// http://www.nitrc.org/projects/cmtk/
//
// The Computational Morphometry Toolkit 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 3 of
// the License, or (at your option) any later version.
//
// The Computational Morphometry Toolkit 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 the Computational Morphometry Toolkit. If not, see
// <http://www.gnu.org/licenses/>.
//
// $Revision: 5436 $
//
// $LastChangedDate: 2018-12-10 19:01:20 -0800 (Mon, 10 Dec 2018) $
//
// $LastChangedBy: torstenrohlfing $
//
*/
#include "cmtkStackBacktrace.h"
#include <stdlib.h>
#include <stdio.h>
#ifdef HAVE_EXECINFO_H
# include <execinfo.h>
#endif
namespace
cmtk
{
/** \addtogroup System */
//@{
StackBacktrace
::StackBacktrace()
{
#ifndef _MSC_VER
struct sigaction sa;
sa.sa_sigaction = cmtkStackBacktraceSignalHandler;
sigemptyset (&sa.sa_mask);
sa.sa_flags = SA_RESTART | SA_SIGINFO;
sigaction(SIGSEGV, &sa, NULL);
sigaction(SIGUSR1, &sa, NULL);
#else
#endif // #ifndef _MSC_VER
}
void
StackBacktrace
::PrintBacktrace( const int levels )
{
#ifdef HAVE_EXECINFO_H
void *trace[16];
const int trace_size = backtrace(trace, 16);
char *const *messages = backtrace_symbols( trace, trace_size );
/* skip first stack frame (points here) */
printf("[stack] Execution path:\n");
const int printLevels = levels ? levels+1 : trace_size;
for ( int i=1; i<printLevels; ++i )
printf( "[stack] %s\n", messages[i] );
#else // #ifdef HAVE_EXECINFO_H
fputs( "Sorry, stack bracktrace() not supported on this platform.\n", stderr );
#endif // #ifdef HAVE_EXECINFO_H
}
int StackBacktrace::ExitCode = 1;
} // namespace cmtk
#ifndef _MSC_VER
void
cmtkStackBacktraceSignalHandler
( int sig, siginfo_t *info, void* )
{
/* Do something useful with siginfo_t */
if (sig == SIGSEGV)
{
printf( "Caught signal %d, faulty address is %p\n", sig, info->si_addr );
}
else
{
printf( "Caught signal %d\n", sig);
}
cmtk::StackBacktrace::PrintBacktrace();
exit( cmtk::StackBacktrace::ExitCode );
}
#else // #ifndef _MSC_VER
void
cmtkStackBacktraceSignalHandler
( int sig )
{
exit( cmtk::StackBacktrace::ExitCode );
}
#endif // #ifndef _MSC_VER
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