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| author | Ingo Molnar <mingo@kernel.org> | 2017-02-03 13:16:09 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-03-03 03:43:43 +0300 |
| commit | d3d1e320d43a7bad9603acf0214406a1e8795c63 (patch) | |
| tree | 564419d5d700b0da73c16a336dd9e5e2e1ff50a1 /include/linux/sched | |
| parent | 752b3ca734cbc17c0456b846ae886c0ed39c5703 (diff) | |
| download | linux-d3d1e320d43a7bad9603acf0214406a1e8795c63.tar.xz | |
sched/headers: Move debugging functions from <linux/sched.h> to <linux/sched/debug.h>
Collect the various scheduler and task state debugging APIs scattered
around <linux/sched.h> into the new <linux/sched/debug.h> header.
In particular the show_regs() and show_stack() prototype affects many files,
update them.
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/sched')
| -rw-r--r-- | include/linux/sched/debug.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/include/linux/sched/debug.h b/include/linux/sched/debug.h index 55bc0cd35fd5..853bbef0b47b 100644 --- a/include/linux/sched/debug.h +++ b/include/linux/sched/debug.h @@ -3,4 +3,50 @@ #include <linux/sched.h> +/* + * Various scheduler/task debugging interfaces: + */ + +struct task_struct; + +extern void dump_cpu_task(int cpu); + +/* + * Only dump TASK_* tasks. (0 for all tasks) + */ +extern void show_state_filter(unsigned long state_filter); + +static inline void show_state(void) +{ + show_state_filter(0); +} + +struct pt_regs; + +extern void show_regs(struct pt_regs *); + +/* + * TASK is a pointer to the task whose backtrace we want to see (or NULL for current + * task), SP is the stack pointer of the first frame that should be shown in the back + * trace (or NULL if the entire call-chain of the task should be shown). + */ +extern void show_stack(struct task_struct *task, unsigned long *sp); + +extern void sched_show_task(struct task_struct *p); + +#ifdef CONFIG_SCHED_DEBUG +struct seq_file; +extern void proc_sched_show_task(struct task_struct *p, struct seq_file *m); +extern void proc_sched_set_task(struct task_struct *p); +#endif + +/* Attach to any functions which should be ignored in wchan output. */ +#define __sched __attribute__((__section__(".sched.text"))) + +/* Linker adds these: start and end of __sched functions */ +extern char __sched_text_start[], __sched_text_end[]; + +/* Is this address in the __sched functions? */ +extern int in_sched_functions(unsigned long addr); + #endif /* _LINUX_SCHED_DEBUG_H */ |