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| author | Bernard Xiong <[email protected]> | 2019-05-20 20:33:07 +0800 |
|---|---|---|
| committer | GitHub <[email protected]> | 2019-05-20 20:33:07 +0800 |
| commit | b2ae7d72f923e1638f72d8eba5c2131389b741b0 (patch) | |
| tree | ab526e2e216f5f656b9c6a53221382d07c7bac2e /libcpu/arm/cortex-a/stack.c | |
| parent | d778c9df25cbbd8e202a0133453e4c8b8e179eff (diff) | |
| parent | 35eff9a85dd1e922f98d36deed84bdfb3c8319f7 (diff) | |
Merge pull request #2703 from armink/lts-v3.1.x
Lts v3.1.x
Diffstat (limited to 'libcpu/arm/cortex-a/stack.c')
| -rw-r--r-- | libcpu/arm/cortex-a/stack.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/libcpu/arm/cortex-a/stack.c b/libcpu/arm/cortex-a/stack.c index 1d3ebcb9e6..d76b8a428a 100644 --- a/libcpu/arm/cortex-a/stack.c +++ b/libcpu/arm/cortex-a/stack.c @@ -50,13 +50,17 @@ rt_uint8_t *rt_hw_stack_init(void *tentry, void *parameter, *(--stk) = 0xdeadbeef; /* r2 */ *(--stk) = 0xdeadbeef; /* r1 */ *(--stk) = (rt_uint32_t)parameter; /* r0 : argument */ - /* cpsr */ if ((rt_uint32_t)tentry & 0x01) *(--stk) = SVCMODE | 0x20; /* thumb mode */ else *(--stk) = SVCMODE; /* arm mode */ +#ifdef RT_USING_LWP + *(--stk) = 0; /* user lr */ + *(--stk) = 0; /* user sp*/ +#endif + /* return task's current stack address */ return (rt_uint8_t *)stk; } |