X-Git-Url: http://nitlanguage.org

diff --git a/c_src/nitg.main.1.c b/c_src/nitg.main.1.c
index 43c0272..f91014d 100644
--- a/c_src/nitg.main.1.c
+++ b/c_src/nitg.main.1.c
@@ -1,9 +1,43 @@
 #include "nitg.main.0.h"
+#include <signal.h>
+#define UNW_LOCAL_ONLY
+#include <libunwind.h>
 int glob_argc;
 char **glob_argv;
 val *glob_sys;
+void sig_handler(int signo){
+printf("Caught signal : %s\n", strsignal(signo));
+show_backtrace(signo);
+}
+void show_backtrace (int signo) {
+char* opt = getenv("NIT_NO_STACK");
+unw_cursor_t cursor;
+if(opt==NULL){
+unw_context_t uc;
+unw_word_t ip;
+char* procname = malloc(sizeof(char) * 100);
+unw_getcontext(&uc);
+unw_init_local(&cursor, &uc);
+printf("-------------------------------------------------\n");
+printf("--   Stack Trace   ------------------------------\n");
+printf("-------------------------------------------------\n");
+while (unw_step(&cursor) > 0) {
+	unw_get_proc_name(&cursor, procname, 100, &ip);
+	printf("` %s \n",procname);
+}
+printf("-------------------------------------------------\n");
+free(procname);
+}
+exit(signo);
+}
 int main(int argc, char** argv) {
 val* var /* : Sys */;
+signal(SIGABRT, sig_handler);
+signal(SIGFPE, sig_handler);
+signal(SIGILL, sig_handler);
+signal(SIGINT, sig_handler);
+signal(SIGTERM, sig_handler);
+signal(SIGSEGV, sig_handler);
 glob_argc = argc; glob_argv = argv;
 initialize_gc_option();
 var = NEW_kernel__Sys(&type_kernel__Sys);