snapshot: print stack trace on segfault

diff --git a/snapshot.cc b/snapshot.cc
index 95a6593a44829c1ae4c1152203b2bbee1162cb94..b7e4ec1ca5ae789915e6ff2931e73668bb845034 100644 (file)
--- a/snapshot.cc
+++ b/snapshot.cc
@@ -17,6 +17,8 @@
 #include <sys/wait.h>
 #include <ucontext.h>
 
+#include "common.h"
+
 #define FAILURE(mesg) { printf("failed in the API: %s with errno relative message: %s\n", mesg, strerror( errno ) ); exit(EXIT_FAILURE); }
 
 #ifdef CONFIG_SSDEBUG
@@ -86,6 +88,7 @@ static void initSnapShotRecord(unsigned int numbackingpages, unsigned int numsna
 static void HandlePF( int sig, siginfo_t *si, void * unused){
        if( si->si_code == SEGV_MAPERR ){
                printf("Real Fault at %p\n", si->si_addr);
+               print_trace();
                exit( EXIT_FAILURE );
        }
        void* addr = ReturnPageAlignedAddress(si->si_addr);