try catch 不处理动态内存，拆分riscv_rest

test/signal_test.c

@@ -6,6 +6,7 @@
 #include "errno.h"
 #include "stdio.h"
 #include "string.h"
+#include "exception.h"
 
 #include "signal_test.h"
 
@@ -120,7 +121,7 @@ static test_sig_obj g_sig_obj = { .test_var = 1, };
 static test_sig_obj2 g_sig_obj2 = { .test_var = 2, };
 static test_sig_obj3 g_sig_obj3;
 
-int thread_fun(void* t) {
+int thread_fun_s(void* t) {
   mythread_t* th = sigthread_init();
   printf("thread_fun start\n");
   connect(&g_sig_obj, test_signal, th, &g_sig_obj2, test_slot);
@@ -132,6 +133,8 @@ int thread_fun(void* t) {
   emit test_signal2(&g_sig_obj, 5, 6,"hello world");
   mdelay(1000);
   printf("test end\n");
+  throw_("my err");
+
   return 0;
 }