1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _LINUX_SCHED_DEBUG_H
3#define _LINUX_SCHED_DEBUG_H
4
5/*
6 * Various scheduler/task debugging interfaces:
7 */
8
9struct task_struct;
10struct pid_namespace;
11
12extern void dump_cpu_task(int cpu);
13
14/*
15 * Only dump TASK_* tasks. (0 for all tasks)
16 */
17extern void show_state_filter(unsigned long state_filter);
18
19static inline void show_state(void)
20{
21 show_state_filter(0);
22}
23
24struct pt_regs;
25
26extern void show_regs(struct pt_regs *);
27
28/*
29 * TASK is a pointer to the task whose backtrace we want to see (or NULL for current
30 * task), SP is the stack pointer of the first frame that should be shown in the back
31 * trace (or NULL if the entire call-chain of the task should be shown).
32 */
33extern void show_stack(struct task_struct *task, unsigned long *sp);
34
35extern void sched_show_task(struct task_struct *p);
36
37#ifdef CONFIG_SCHED_DEBUG
38struct seq_file;
39extern void proc_sched_show_task(struct task_struct *p,
40 struct pid_namespace *ns, struct seq_file *m);
41extern void proc_sched_set_task(struct task_struct *p);
42#endif
43
44/* Attach to any functions which should be ignored in wchan output. */
45#define __sched __attribute__((__section__(".sched.text")))
46
47/* Linker adds these: start and end of __sched functions */
48extern char __sched_text_start[], __sched_text_end[];
49
50/* Is this address in the __sched functions? */
51extern int in_sched_functions(unsigned long addr);
52
53#endif /* _LINUX_SCHED_DEBUG_H */
54