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  
show_state(void)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