xref: /linux-6.15/include/linux/sched/debug.h (revision d3d1e320)
1 #ifndef _LINUX_SCHED_DEBUG_H
2 #define _LINUX_SCHED_DEBUG_H
3 
4 #include <linux/sched.h>
5 
6 /*
7  * Various scheduler/task debugging interfaces:
8  */
9 
10 struct task_struct;
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 long 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 
35 extern void sched_show_task(struct task_struct *p);
36 
37 #ifdef CONFIG_SCHED_DEBUG
38 struct seq_file;
39 extern void proc_sched_show_task(struct task_struct *p, struct seq_file *m);
40 extern void proc_sched_set_task(struct task_struct *p);
41 #endif
42 
43 /* Attach to any functions which should be ignored in wchan output. */
44 #define __sched		__attribute__((__section__(".sched.text")))
45 
46 /* Linker adds these: start and end of __sched functions */
47 extern char __sched_text_start[], __sched_text_end[];
48 
49 /* Is this address in the __sched functions? */
50 extern int in_sched_functions(unsigned long addr);
51 
52 #endif /* _LINUX_SCHED_DEBUG_H */
53