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
9 struct task_struct;
10 struct pid_namespace;
11
12 extern void dump_cpu_task(int cpu);
13
14 /*
15 * Only dump TASK_* tasks. (0 for all tasks)
16 */
17 extern void show_state_filter(unsigned int state_filter);
18
19 static inline void show_state(void)
20 {
21 show_state_filter(0);
22 }
23
24 struct pt_regs;
25
26 extern 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 */
33 extern void show_stack(struct task_struct *task, unsigned long *sp,
34 const char *loglvl);
35
36 extern void sched_show_task(struct task_struct *p);
37
38 #ifdef CONFIG_SCHED_DEBUG
39 struct seq_file;
40 extern void proc_sched_show_task(struct task_struct *p,
41 struct pid_namespace *ns, struct seq_file *m);
42 extern void proc_sched_set_task(struct task_struct *p);
43 #endif
44
45 /* Attach to any functions which should be ignored in wchan output. */
46 #define __sched __section(".sched.text")
47
48 /* Linker adds these: start and end of __sched functions */
49 extern char __sched_text_start[], __sched_text_end[];
50
51 /* Is this address in the __sched functions? */
52 extern int in_sched_functions(unsigned long addr);
53
54 #endif /* _LINUX_SCHED_DEBUG_H */
55
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