diff options
| author | SummerGift <[email protected]> | 2017-12-21 16:32:35 +0800 |
|---|---|---|
| committer | SummerGift <[email protected]> | 2017-12-21 16:37:38 +0800 |
| commit | fc7a5abc7635a1b37bd9202072f279e9930e5eb5 (patch) | |
| tree | c26660a6ef7df198c353a52a214ccb196f576efb /libcpu/arm/zynq7000/stack.c | |
| parent | 336207ad31710b0022be9a9a79e72dde2bf48d67 (diff) | |
[libcpu]: add 8-byte alignment for arm architecture && optimize code format
Diffstat (limited to 'libcpu/arm/zynq7000/stack.c')
| -rw-r--r-- | libcpu/arm/zynq7000/stack.c | 28 |
1 files changed, 15 insertions, 13 deletions
diff --git a/libcpu/arm/zynq7000/stack.c b/libcpu/arm/zynq7000/stack.c index 8e1b86432e..08dd4b4dac 100644 --- a/libcpu/arm/zynq7000/stack.c +++ b/libcpu/arm/zynq7000/stack.c @@ -31,21 +31,23 @@ rt_uint8_t *rt_hw_stack_init(void *tentry, void *parameter, { rt_uint32_t *stk; + 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)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 */ |