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[Kernel] Add ARCH_CPU_STACK_GROWS_UPWARD option

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This commit is contained in:
Bernard Xiong
2018-11-11 15:56:02 +08:00
parent c7a85df1cd
commit 00a655ac1c
4 changed files with 34 additions and 4 deletions
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src/scheduler.c
+10 -2
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@@ -91,11 +91,19 @@ static void _rt_scheduler_stack_check(struct rt_thread *thread)
level = rt_hw_interrupt_disable();
while (level);
}
else if ((rt_uint32_t)thread->sp <= ((rt_uint32_t)thread->stack_addr + 32))
#if defined(ARCH_CPU_STACK_GROWS_UPWARD)
else if ((rt_uint32_t)thread->sp > ((rt_uint32_t)thread->stack_addr + thread->stack_size))
{
rt_kprintf("warning: %s stack is close to end of stack address.\n",
rt_kprintf("warning: %s stack is close to the top of stack address.\n",
thread->name);
}
#else
else if ((rt_uint32_t)thread->sp <= ((rt_uint32_t)thread->stack_addr + 32))
{
rt_kprintf("warning: %s stack is close to the bottom of stack address.\n",
thread->name);
}
#endif
}
#endif
src/thread.c
+6
View File
@@ -136,9 +136,15 @@ static rt_err_t _rt_thread_init(struct rt_thread *thread,
/* init thread stack */
rt_memset(thread->stack_addr, '#', thread->stack_size);
#ifdef ARCH_CPU_STACK_GROWS_UPWARD
thread->sp = (void *)rt_hw_stack_init(thread->entry, thread->parameter,
(void *)((char *)thread->stack_addr),
(void *)rt_thread_exit);
#else
thread->sp = (void *)rt_hw_stack_init(thread->entry, thread->parameter,
(void *)((char *)thread->stack_addr + thread->stack_size - 4),
(void *)rt_thread_exit);
#endif
/* priority init */
RT_ASSERT(priority < RT_THREAD_PRIORITY_MAX);