Implement a backtrace handler which displays a backtrace in case of Segmentation Fault

src/Makefile.am

@@ -15,9 +15,9 @@
 # this program; if not, write to the Free Software Foundation, Inc.,
 # 59 Temple Place, Suite 330, Boston, MA  02111-1307, USA.
 
-AM_CPPFLAGS = -I$(top_srcdir)/src/include -I$(top_builddir)/src/include
+AM_CPPFLAGS = -I$(top_srcdir)/src/include -I$(top_builddir)/src/include -rdynamic
 
-LDFLAGS += $(SQLITE_LIBS) -lpthread
+LDFLAGS += $(SQLITE_LIBS) -lpthread -rdynamic
 
 bin_PROGRAMS = distromatic
 

src/distromatic.c

@@ -25,6 +25,7 @@
 #include <stdio.h>
 #include <fcntl.h>
 #include <pthread.h>
+#include <signal.h>
 
 #if HAVE_UNISTD_H
 # include <unistd.h>
@@ -193,6 +194,26 @@ program_version(void) {
           printf("%s\n", freelicense[linenum]);
 }
 
+/* Obtain a backtrace and print it to stdout. */
+void backtraceHandler(int sig)
+{
+   void *array[10];
+   size_t size;
+   char **strings;
+   size_t i;
+ 
+   size = backtrace (array, 10);
+   strings = (char**)backtrace_symbols (array, size);
+ 
+   printf ("Obtained %zd stack frames.\n", size);
+ 
+   for (i = 0; i < size; i++)
+      printf ("%s\n", strings[i]);
+ 
+   free (strings);
+   exit(1);
+}
+
 /*
  * checks if given single requirement is met by given provides
  *
@@ -1165,6 +1186,9 @@ main(int argc, char *argv[])
           { 0, 0, 0, 0 }
      };
 
+     // install backtrace handler
+     signal(SIGSEGV, backtraceHandler);
+
      start_time=time(NULL);
 
      opterr = 1;