Merge pull request #1968 from RT-Thread/feature_stack_grows

[Kernel] Add ARCH_CPU_STACK_GROWS_UPWARD option

1 files changed, 6 insertions, 0 deletions

diff --git a/src/thread.c b/src/thread.c
index 6d79ece54b..687852e92e 100644
--- a/src/thread.c
+++ b/src/thread.c
@@ -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);