1 files changed, 4 insertions, 0 deletions

diff --git a/arch/csky/kernel/dumpstack.c b/arch/csky/kernel/dumpstack.c
index 659253e9989c..d67f9777cfd9 100644
--- a/arch/csky/kernel/dumpstack.c
+++ b/arch/csky/kernel/dumpstack.c
@@ -38,7 +38,11 @@ void show_stack(struct task_struct *task, unsigned long *stack)
                 if (task)
                         stack = (unsigned long *)thread_saved_fp(task);
                 else
+#ifdef CONFIG_STACKTRACE
+                        asm volatile("mov %0, r8\n":"=r"(stack)::"memory");
+#else
                         stack = (unsigned long *)&stack;
+#endif
         }
 
         show_trace(stack);