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-rw-r--r--libcpu/arm/armv6/stack.c25
1 files changed, 13 insertions, 12 deletions
diff --git a/libcpu/arm/armv6/stack.c b/libcpu/arm/armv6/stack.c
index c2f31717b3..648ea7dbf5 100644
--- a/libcpu/arm/armv6/stack.c
+++ b/libcpu/arm/armv6/stack.c
@@ -53,20 +53,21 @@ rt_uint8_t *rt_hw_stack_init(void *tentry, void *parameter,
stack_addr += sizeof(rt_uint32_t);
stack_addr = (rt_uint8_t *)RT_ALIGN_DOWN((rt_uint32_t)stack_addr, 8);
stk = (rt_uint32_t *)stack_addr;
+
*(--stk) = (rt_uint32_t)tentry; /* entry point */
*(--stk) = (rt_uint32_t)texit; /* lr */
- *(--stk) = 0; /* r12 */
- *(--stk) = 0; /* r11 */
- *(--stk) = 0; /* r10 */
- *(--stk) = 0; /* r9 */
- *(--stk) = 0; /* r8 */
- *(--stk) = 0; /* r7 */
- *(--stk) = 0; /* r6 */
- *(--stk) = 0; /* r5 */
- *(--stk) = 0; /* r4 */
- *(--stk) = 0; /* r3 */
- *(--stk) = 0; /* r2 */
- *(--stk) = 0; /* r1 */
+ *(--stk) = 0xdeadbeef; /* r12 */
+ *(--stk) = 0xdeadbeef; /* r11 */
+ *(--stk) = 0xdeadbeef; /* r10 */
+ *(--stk) = 0xdeadbeef; /* r9 */
+ *(--stk) = 0xdeadbeef; /* r8 */
+ *(--stk) = 0xdeadbeef; /* r7 */
+ *(--stk) = 0xdeadbeef; /* r6 */
+ *(--stk) = 0xdeadbeef; /* r5 */
+ *(--stk) = 0xdeadbeef; /* r4 */
+ *(--stk) = 0xdeadbeef; /* r3 */
+ *(--stk) = 0xdeadbeef; /* r2 */
+ *(--stk) = 0xdeadbeef; /* r1 */
*(--stk) = (rt_uint32_t)parameter; /* r0 : argument */
/* cpsr */