stage2 提供词法分析器通过与stage1的差异测试 stage1提供数组到切片的隐式转换

stage0/spl_vm.c

@@ -724,9 +724,15 @@ int spl_vm_prepare(spl_vm_t *vm, const char *entry, int argc, const char **argv,
     if (!vm || !vm->prog) {
         return -1;
     }
-    spl_vm_func_t *fn = spl_prog_get_func(vm->prog, entry ? entry : "main");
+    spl_vm_func_t *fn = NULL;
+    const char *entry_point = "_start";
+    fn = spl_prog_get_func(vm->prog, entry_point);
+    if (fn == NULL) {
+        entry_point = entry ? entry : "main";
+        fn = spl_prog_get_func(vm->prog, entry_point);
+    }
     if (!fn) {
-        fprintf(stderr, "vm: entry point '%s' not found\n", entry ? entry : "main");
+        fprintf(stderr, "vm: entry point '%s' not found\n", entry_point);
         return -1;
     }
     vm->fp = 0;