1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Stack trace management functions
4 *
5 * Copyright IBM Corp. 2006
6 * Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
7 */
8
9 #include <linux/stacktrace.h>
10 #include <asm/stacktrace.h>
11 #include <asm/unwind.h>
12
arch_stack_walk(stack_trace_consume_fn consume_entry,void * cookie,struct task_struct * task,struct pt_regs * regs)13 void arch_stack_walk(stack_trace_consume_fn consume_entry, void *cookie,
14 struct task_struct *task, struct pt_regs *regs)
15 {
16 struct unwind_state state;
17 unsigned long addr;
18
19 unwind_for_each_frame(&state, task, regs, 0) {
20 addr = unwind_get_return_address(&state);
21 if (!addr || !consume_entry(cookie, addr, false))
22 break;
23 }
24 }
25