| // SPDX-License-Identifier: GPL-2.0 |
| // Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd. |
| #include <linux/ptrace.h> |
| int kstack_depth_to_print = 48; |
| void show_trace(unsigned long *stack) |
| unsigned long *stack_end; |
| unsigned long *stack_start; |
| addr = (unsigned long) stack & THREAD_MASK; |
| stack_start = (unsigned long *) addr; |
| stack_end = (unsigned long *) (addr + THREAD_SIZE); |
| pr_info("\nCall Trace:"); |
| while (fp > stack_start && fp < stack_end) { |
| fp = (unsigned long *) fp[0]; |
| if (__kernel_text_address(addr)) |
| pr_cont("\n[<%08lx>] %pS", addr, (void *)addr); |
| void show_stack(struct task_struct *task, unsigned long *stack) |
| stack = (unsigned long *)thread_saved_fp(task); |
| asm volatile("mov %0, r8\n":"=r"(stack)::"memory"); |
| stack = (unsigned long *)&stack; |