1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun #ifndef _LINUX_SCHED_DEBUG_H 3*4882a593Smuzhiyun #define _LINUX_SCHED_DEBUG_H 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun /* 6*4882a593Smuzhiyun * Various scheduler/task debugging interfaces: 7*4882a593Smuzhiyun */ 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun struct task_struct; 10*4882a593Smuzhiyun struct pid_namespace; 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun extern void dump_cpu_task(int cpu); 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun /* 15*4882a593Smuzhiyun * Only dump TASK_* tasks. (0 for all tasks) 16*4882a593Smuzhiyun */ 17*4882a593Smuzhiyun extern void show_state_filter(unsigned long state_filter); 18*4882a593Smuzhiyun show_state(void)19*4882a593Smuzhiyunstatic inline void show_state(void) 20*4882a593Smuzhiyun { 21*4882a593Smuzhiyun show_state_filter(0); 22*4882a593Smuzhiyun } 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun struct pt_regs; 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun extern void show_regs(struct pt_regs *); 27*4882a593Smuzhiyun 28*4882a593Smuzhiyun /* 29*4882a593Smuzhiyun * TASK is a pointer to the task whose backtrace we want to see (or NULL for current 30*4882a593Smuzhiyun * task), SP is the stack pointer of the first frame that should be shown in the back 31*4882a593Smuzhiyun * trace (or NULL if the entire call-chain of the task should be shown). 32*4882a593Smuzhiyun */ 33*4882a593Smuzhiyun extern void show_stack(struct task_struct *task, unsigned long *sp, 34*4882a593Smuzhiyun const char *loglvl); 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun extern void sched_show_task(struct task_struct *p); 37*4882a593Smuzhiyun 38*4882a593Smuzhiyun #ifdef CONFIG_SCHED_DEBUG 39*4882a593Smuzhiyun struct seq_file; 40*4882a593Smuzhiyun extern void proc_sched_show_task(struct task_struct *p, 41*4882a593Smuzhiyun struct pid_namespace *ns, struct seq_file *m); 42*4882a593Smuzhiyun extern void proc_sched_set_task(struct task_struct *p); 43*4882a593Smuzhiyun #endif 44*4882a593Smuzhiyun 45*4882a593Smuzhiyun /* Attach to any functions which should be ignored in wchan output. */ 46*4882a593Smuzhiyun #define __sched __section(".sched.text") 47*4882a593Smuzhiyun 48*4882a593Smuzhiyun /* Linker adds these: start and end of __sched functions */ 49*4882a593Smuzhiyun extern char __sched_text_start[], __sched_text_end[]; 50*4882a593Smuzhiyun 51*4882a593Smuzhiyun /* Is this address in the __sched functions? */ 52*4882a593Smuzhiyun extern int in_sched_functions(unsigned long addr); 53*4882a593Smuzhiyun 54*4882a593Smuzhiyun #endif /* _LINUX_SCHED_DEBUG_H */ 55