diff --git a/exec.c b/exec.c
index df67938..8bff743 100644
--- a/exec.c
+++ b/exec.c
@@ -1390,6 +1390,17 @@
     mmap_unlock();
 }
 
+#if defined(CONFIG_QEMU_LDST_OPTIMIZATION) && defined(CONFIG_SOFTMMU)
+/* check whether the given addr is in TCG generated code buffer or not */
+bool is_tcg_gen_code(uintptr_t tc_ptr)
+{
+    /* This can be called during code generation, code_gen_buffer_max_size
+       is used instead of code_gen_ptr for upper boundary checking */
+    return (tc_ptr >= (uintptr_t)code_gen_buffer &&
+            tc_ptr < (uintptr_t)(code_gen_buffer + code_gen_buffer_max_size));
+}
+#endif
+
 /* find the TB 'tb' such that tb[0].tc_ptr <= tc_ptr <
    tb[1].tc_ptr. Return NULL if not found */
 TranslationBlock *tb_find_pc(uintptr_t tc_ptr)