aboutsummaryrefslogtreecommitdiffstats
path: root/include/linux/stacktrace.h
blob: 669045ab73f30d7abbf72da9faa1a3724fe69b25 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
#ifndef __LINUX_STACKTRACE_H
#define __LINUX_STACKTRACE_H

#include <linux/types.h>

struct task_struct;
struct pt_regs;

#ifdef CONFIG_STACKTRACE
struct task_struct;

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 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
# 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)
#endif

#endif