From 9217865c6a40847f934ee87b0eaa1d72ad9e20fa Mon Sep 17 00:00:00 2001
From: huanghe <31907499+ssd4561@users.noreply.github.com>
Date: Fri, 19 May 2023 11:32:58 +0800
Subject: [PATCH] [libcpu] fix arm/cortex-a/start_gcc.S (#7515)

---
 libcpu/arm/cortex-a/start_gcc.S | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/libcpu/arm/cortex-a/start_gcc.S b/libcpu/arm/cortex-a/start_gcc.S
index d79ffd2f6a..8bc4be8a2e 100644
--- a/libcpu/arm/cortex-a/start_gcc.S
+++ b/libcpu/arm/cortex-a/start_gcc.S
@@ -210,10 +210,9 @@ _rtthread_startup:
 
 .weak rt_asm_cpu_id 
 rt_asm_cpu_id:
-    mov r9, lr
     mrc p15, 0, r0, c0, c0, 5
     and r0, r0, #0xf
-    mov lr, r9
+    mov pc, lr
 
 stack_setup: