diff options
Diffstat (limited to 'nuttx/arch/arm/src/common/up_createstack.c')
| -rw-r--r-- | nuttx/arch/arm/src/common/up_createstack.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/nuttx/arch/arm/src/common/up_createstack.c b/nuttx/arch/arm/src/common/up_createstack.c index f56d36390..0c9f0809f 100644 --- a/nuttx/arch/arm/src/common/up_createstack.c +++ b/nuttx/arch/arm/src/common/up_createstack.c @@ -109,18 +109,18 @@ int up_create_stack(_TCB *tcb, size_t stack_size) size_t size_of_stack; /* The ARM uses a push-down stack: the stack grows - * toward loweraddresses in memory. The stack pointer - * register, points to the lowest, valid work address - * (the "top" of the stack). Items on the stack are - * referenced as positive word offsets from sp. - */ + * toward loweraddresses in memory. The stack pointer + * register, points to the lowest, valid work address + * (the "top" of the stack). Items on the stack are + * referenced as positive word offsets from sp. + */ top_of_stack = (uint32_t)tcb->stack_alloc_ptr + stack_size - 4; /* The ARM stack must be aligned at word (4 byte) - * boundaries. If necessary top_of_stack must be rounded - * down to the next boundary - */ + * boundaries. If necessary top_of_stack must be rounded + * down to the next boundary + */ top_of_stack &= ~3; size_of_stack = top_of_stack - (uint32_t)tcb->stack_alloc_ptr + 4; |