+/* 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);
+}