From 043611b98aca955e9cb511c51baf7240389fba75 Mon Sep 17 00:00:00 2001
From: shaojinchun <shaojinchun@rt-thread.com>
Date: Wed, 29 May 2019 08:26:08 +0800
Subject: add cortex-a fpu support

---
 libcpu/arm/cortex-a/stack.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'libcpu/arm/cortex-a/stack.c')

diff --git a/libcpu/arm/cortex-a/stack.c b/libcpu/arm/cortex-a/stack.c
index d76b8a428a..07d795ab5b 100644
--- a/libcpu/arm/cortex-a/stack.c
+++ b/libcpu/arm/cortex-a/stack.c
@@ -60,6 +60,9 @@ rt_uint8_t *rt_hw_stack_init(void *tentry, void *parameter,
     *(--stk) = 0;       /* user lr */
     *(--stk) = 0;       /* user sp*/
 #endif
+#ifdef RT_USING_FPU
+    *(--stk) = 0;       /* not use fpu*/
+#endif
 
     /* return task's current stack address */
     return (rt_uint8_t *)stk;
-- 
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