Initial commit

.gitignore

@@ -11,3 +11,5 @@
 *.lai
 *.la
 *.a
+
+handlertest

Makefile

@@ -0,0 +1,2 @@
+all:
+	g++ -O3 -std=c++0x -Wall -rdynamic -o handlertest main.cpp

main.cpp

@@ -0,0 +1,69 @@
+#include <cstdlib>
+#include <cstdio>
+#include <ctime>
+#include <exception>
+#include <stdexcept>
+
+#include <execinfo.h>
+#include <signal.h>
+#include <unistd.h>
+
+void printStacktrace()
+{
+    void *array[20];
+    size_t size = backtrace(array, sizeof(array) / sizeof(array[0]));
+    backtrace_symbols_fd(array, size, STDERR_FILENO);
+}
+
+void signalHandler(int sig)
+{
+    std::fprintf(stderr, "Error: signal %d\n", sig);
+    printStacktrace();
+    std::abort();
+}
+
+void terminateHandler()
+{
+    std::exception_ptr exptr = std::current_exception();
+    if (exptr != 0)
+    {
+        // the only useful feature of std::exception_ptr is that it can be rethrown...
+        try
+        {
+            std::rethrow_exception(exptr);
+        }
+        catch (std::exception &ex)
+        {
+            std::fprintf(stderr, "Terminated due to exception: %s\n", ex.what());
+        }
+        catch (...)
+        {
+            std::fprintf(stderr, "Terminated due to unknown exception\n");
+        }
+    }
+    else
+    {
+        std::fprintf(stderr, "Terminated due to unknown reason :(\n");
+    }
+    printStacktrace();
+    std::abort();
+}
+
+int main()
+{
+    signal(SIGSEGV, signalHandler);
+    std::set_terminate(terminateHandler);
+
+    srand(time(NULL));
+    if (rand() % 2)
+    {
+        // segfault
+        int *bad = NULL;
+        std::fprintf(stderr, "%d", *bad);
+    }
+    else
+    {
+        // exception
+        throw std::runtime_error("Hello, world!");
+    }
+}