RTOS: Thread: Fix how free stack is calculated

bulislaw · bulislaw · commit 4c489e686b83 · 2017-06-29T13:01:21.000+01:00
diff --git a/rtos/Thread.cpp b/rtos/Thread.cpp
@@ -240,7 +240,7 @@ uint32_t Thread::free_stack() {
 
     if (_tid != NULL) {
         os_thread_t *thread = (os_thread_t *)_tid;
-        size = (uint32_t)thread->stack_mem - thread->sp;
+        size = (uint32_t)thread->sp - (uint32_t)thread->stack_mem;
     }
 
     _mutex.unlock();

Original file line number	Diff line number	Diff line change
`@@ -240,7 +240,7 @@ uint32_t Thread::free_stack() {`
`240`	`240`
`241`	`241`	`if (_tid != NULL) {`
`242`	`242`	`os_thread_t thread = (os_thread_t )_tid;`
`243`		`- size = (uint32_t)thread->stack_mem - thread->sp;`
	`243`	`+ size = (uint32_t)thread->sp - (uint32_t)thread->stack_mem;`
`244`	`244`	`}`
`245`	`245`
`246`	`246`	`_mutex.unlock();`