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/* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Data Differential YATL (i.e. libtest) library
*
* Copyright (C) 2012 Data Differential, http://datadifferential.com/
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
*
* * The names of its contributors may not be used to endorse or
* promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include <cerrno>
#include <csignal>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <iostream>
#include "libmemcached/backtrace.hpp"
class Test {
public:
Test()
{
}
void call_backtrace()
{
std::cerr << __func__ << std::endl;
custom_backtrace();
}
};
void SIGSEGV_handler(int sig_num, siginfo_t* info, void* ucontext)
{
std::cerr << __func__ << std::endl;
(void)sig_num;
(void)info;
(void)ucontext;
custom_backtrace();
}
int raise_SIGSEGV()
{
std::cerr << std::endl << "Calling backtrace()" << std::endl;
custom_backtrace();
std::cerr << std::endl << "Calling raise()" << std::endl;
return raise(SIGSEGV);
}
int layer4()
{
return raise_SIGSEGV();
}
int layer3()
{
return layer4();
}
int layer2()
{
return layer3();
}
int layer1()
{
return layer2();
}
int main(int, char **)
{
Test t;
t.call_backtrace();
struct sigaction sigact;
sigact.sa_sigaction= SIGSEGV_handler;
sigact.sa_flags= SA_RESTART | SA_SIGINFO;
if (sigaction(SIGSEGV, &sigact, (struct sigaction *)NULL) != 0)
{
std::cerr << "error setting signal handler for " << strsignal(SIGSEGV) << "(" << SIGSEGV << ")" << std::endl;
exit(EXIT_FAILURE);
}
int ret= layer1();
if (ret)
{
std::cerr << "raise() " << strerror(errno) << std::endl;
exit(EXIT_FAILURE);
}
exit(EXIT_SUCCESS);
}
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