Draft wamr modifications + host program structure sections

chapters/05_experiment_setup/listings/nativehost.cpp

@@ -0,0 +1,15 @@
+// Define FAIL* marker symbols
+void fail_start_trace(void) {}
+void fail_stop_trace(void) {}
+void fail_marker_positive(void) {}
+void fail_marker_negative(void) {}
+void fail_marker_detected(void) {}
+
+// Forward declare workload
+int wasm_module(void);
+
+// Execute
+MAIN {
+  int retval = wasm_module();
+  RET(retval);
+}