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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 "libgearman/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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