Line data    Source code

       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           0 :         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 */