Release 4.12 include/linux/stacktrace.h

#ifndef __LINUX_STACKTRACE_H

#define __LINUX_STACKTRACE_H

#include <linux/types.h>

struct task_struct;
struct pt_regs;

#ifdef CONFIG_STACKTRACE

struct stack_trace {
	

unsigned int nr_entries, max_entries;
	
unsigned long *entries;
	
int skip;	/* input argument: How many entries to skip */
};

extern void save_stack_trace(struct stack_trace *trace);
extern void save_stack_trace_regs(struct pt_regs *regs,
				  struct stack_trace *trace);
extern void save_stack_trace_tsk(struct task_struct *tsk,
				struct stack_trace *trace);
extern int save_stack_trace_tsk_reliable(struct task_struct *tsk,
					 struct stack_trace *trace);

extern void print_stack_trace(struct stack_trace *trace, int spaces);
extern int snprint_stack_trace(char *buf, size_t size,
			struct stack_trace *trace, int spaces);

#ifdef CONFIG_USER_STACKTRACE_SUPPORT
extern void save_stack_trace_user(struct stack_trace *trace);
#else

# define save_stack_trace_user(trace)              do { } while (0)
#endif

#else /* !CONFIG_STACKTRACE */

# define save_stack_trace(trace)			do { } while (0)

# define save_stack_trace_tsk(tsk, trace)		do { } while (0)

# define save_stack_trace_user(trace)			do { } while (0)

# define print_stack_trace(trace, spaces)		do { } while (0)

# define snprint_stack_trace(buf, size, trace, spaces)	do { } while (0)

# define save_stack_trace_tsk_reliable(tsk, trace)	({ -ENOSYS; })
#endif /* CONFIG_STACKTRACE */

#endif /* __LINUX_STACKTRACE_H */
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Directory: include/linux

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