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Linux/include/linux/sched/debug.h

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  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 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                        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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