trace_probe.h File Reference

#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/smp.h>
#include <linux/debugfs.h>
#include <linux/types.h>
#include <linux/string.h>
#include <linux/ctype.h>
#include <linux/ptrace.h>
#include <linux/perf_event.h>
#include <linux/kprobes.h>
#include <linux/stringify.h>
#include <linux/limits.h>
#include <linux/uaccess.h>
#include <asm/bitsperlong.h>
#include "trace.h"
#include "trace_output.h"

Go to the source code of this file.

Data Structures
struct	fetch_type
struct	fetch_param
struct	probe_arg

Macros
#define	MAX_TRACE_ARGS   128
#define	MAX_ARGSTR_LEN   63
#define	MAX_EVENT_NAME_LEN   64
#define	MAX_STRING_SIZE   PATH_MAX
#define	FIELD_STRING_IP   "__probe_ip"
#define	FIELD_STRING_RETIP   "__probe_ret_ip"
#define	FIELD_STRING_FUNC   "__probe_func"
#define	DEFINE_FIELD(type, item, name, is_signed)
#define	TP_FLAG_TRACE   1
#define	TP_FLAG_PROFILE   2
#define	TP_FLAG_REGISTERED   4
#define	TP_FLAG_UPROBE   8
#define	make_data_rloc(len, roffs)   (((u32)(len) << 16) | ((u32)(roffs) & 0xffff))
#define	get_rloc_len(dl)   ((u32)(dl) >> 16)
#define	get_rloc_offs(dl)   ((u32)(dl) & 0xffff)
#define	convert_rloc_to_loc(dl, offs)   ((u32)(dl) + (offs))

Typedefs
typedef void(*	fetch_func_t )(struct pt_regs *, void *, void *)
typedef int(*	print_type_func_t )(struct trace_seq *, const char *, void *, void *)

Enumerations
enum	{   FETCH_MTD_reg = 0, FETCH_MTD_stack, FETCH_MTD_retval, FETCH_MTD_memory,   FETCH_MTD_symbol, FETCH_MTD_deref, FETCH_MTD_bitfield, FETCH_MTD_END }

Functions
int	traceprobe_parse_probe_arg (char *arg, ssize_t *size, struct probe_arg *parg, bool is_return, bool is_kprobe)
int	traceprobe_conflict_field_name (const char *name, struct probe_arg *args, int narg)
void	traceprobe_update_arg (struct probe_arg *arg)
void	traceprobe_free_probe_arg (struct probe_arg *arg)
int	traceprobe_split_symbol_offset (char *symbol, unsigned long *offset)
ssize_t	traceprobe_probes_write (struct file *file, const char __user *buffer, size_t count, loff_t *ppos, int(*createfn)(int, char **))
int	traceprobe_command (const char *buf, int(*createfn)(int, char **))

Macro Definition Documentation

#define convert_rloc_to_loc	(		dl,
			offs
	)		((u32)(dl) + (offs))

Definition at line 83 of file trace_probe.h.

#define DEFINE_FIELD	(		type,
			item,
			name,
			is_signed
	)

Value:

do {                                \
        ret = trace_define_field(event_call, #type, name,   \
                     offsetof(typeof(field), item), \
                     sizeof(field.item), is_signed, \
                     FILTER_OTHER);         \
        if (ret)                        \
            return ret;                 \
    } while (0)

Definition at line 54 of file trace_probe.h.

#define FIELD_STRING_FUNC   "__probe_func"

Definition at line 51 of file trace_probe.h.

#define FIELD_STRING_IP   "__probe_ip"

Definition at line 49 of file trace_probe.h.

#define FIELD_STRING_RETIP   "__probe_ret_ip"

Definition at line 50 of file trace_probe.h.

#define get_rloc_len

(

dl

)

((u32)(dl) >> 16)

Definition at line 75 of file trace_probe.h.

#define get_rloc_offs

(

dl

)

((u32)(dl) & 0xffff)

Definition at line 76 of file trace_probe.h.

#define make_data_rloc	(		len,
			roffs
	)		(((u32)(len) << 16) | ((u32)(roffs) & 0xffff))

Definition at line 73 of file trace_probe.h.

#define MAX_ARGSTR_LEN   63

Definition at line 44 of file trace_probe.h.

#define MAX_EVENT_NAME_LEN   64

Definition at line 45 of file trace_probe.h.

#define MAX_STRING_SIZE   PATH_MAX

Definition at line 46 of file trace_probe.h.

#define MAX_TRACE_ARGS   128

Definition at line 43 of file trace_probe.h.

#define TP_FLAG_PROFILE   2

Definition at line 67 of file trace_probe.h.

#define TP_FLAG_REGISTERED   4

Definition at line 68 of file trace_probe.h.

#define TP_FLAG_TRACE   1

Definition at line 66 of file trace_probe.h.

#define TP_FLAG_UPROBE   8

Definition at line 69 of file trace_probe.h.

Typedef Documentation

typedef void(* fetch_func_t)(struct pt_regs *, void *, void *)

Definition at line 86 of file trace_probe.h.

typedef int(* print_type_func_t)(struct trace_seq *, const char *, void *, void *)

Definition at line 88 of file trace_probe.h.

Enumeration Type Documentation

anonymous enum

Enumerator:

FETCH_MTD_reg
FETCH_MTD_stack
FETCH_MTD_retval
FETCH_MTD_memory
FETCH_MTD_symbol
FETCH_MTD_deref
FETCH_MTD_bitfield
FETCH_MTD_END

Definition at line 91 of file trace_probe.h.

Function Documentation

int traceprobe_command	(	const char *	buf,
		int(*)(int, char **)	createfn
	)

Definition at line 766 of file trace_probe.c.

int traceprobe_conflict_field_name	(	const char *	name,
		struct probe_arg *	args,
		int	narg
	)

Definition at line 727 of file trace_probe.c.

void traceprobe_free_probe_arg

(

struct probe_arg *

arg

)

Definition at line 753 of file trace_probe.c.

int traceprobe_parse_probe_arg	(	char *	arg,
		ssize_t *	size,
		struct probe_arg *	parg,
		bool	is_return,
		bool	is_kprobe
	)

Definition at line 685 of file trace_probe.c.

ssize_t traceprobe_probes_write	(	struct file *	file,
		const char __user *	buffer,
		size_t	count,
		loff_t *	ppos,
		int(*)(int, char **)	createfn
	)

Definition at line 787 of file trace_probe.c.

int traceprobe_split_symbol_offset	(	char *	symbol,
		unsigned long *	offset
	)

Definition at line 494 of file trace_probe.c.

void traceprobe_update_arg

(

struct probe_arg *

arg

)

Definition at line 743 of file trace_probe.c.