LXR linux/include/linux/sched/debug.h

   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