#include <linux/stop_machine.h>
#include <linux/clocksource.h>
#include <linux/kallsyms.h>
#include <linux/seq_file.h>
#include <linux/suspend.h>
#include <linux/debugfs.h>
#include <linux/hardirq.h>
#include <linux/kthread.h>
#include <linux/uaccess.h>
#include <linux/bsearch.h>
#include <linux/module.h>
#include <linux/ftrace.h>
#include <linux/sysctl.h>
#include <linux/slab.h>
#include <linux/ctype.h>
#include <linux/sort.h>
#include <linux/list.h>
#include <linux/hash.h>
#include <linux/rcupdate.h>
#include <trace/events/sched.h>
#include <asm/setup.h>
#include "trace_output.h"
#include "trace_stat.h"

Data Structures
struct	ftrace_pid

Macros
#define	FTRACE_WARN_ON(cond)

#define	FTRACE_WARN_ON_ONCE(cond)

#define	FTRACE_HASH_BITS 7

#define	FTRACE_FUNC_HASHSIZE (1 << FTRACE_HASH_BITS)

#define	FTRACE_HASH_DEFAULT_BITS 10

#define	FTRACE_HASH_MAX_BITS 12

#define	FL_GLOBAL_CONTROL_MASK (FTRACE_OPS_FL_GLOBAL \| FTRACE_OPS_FL_CONTROL)

#define	ftrace_ops_list_func ((ftrace_func_t)ftrace_ops_no_ops)

#define	ftrace_startup(ops, command)

#define	ftrace_shutdown(ops, command) do { } while (0)

#define	ftrace_startup_sysctl() do { } while (0)

#define	ftrace_shutdown_sysctl() do { } while (0)

Functions
	LIST_HEAD (ftrace_pids)

int	ftrace_nr_registered_ops (void)

void	clear_ftrace_function (void)

	device_initcall (ftrace_nodyn_init)

	fs_initcall (ftrace_init_debugfs)

void	ftrace_kill (void)

int	ftrace_is_dead (void)

int	register_ftrace_function (struct ftrace_ops *ops)

	EXPORT_SYMBOL_GPL (register_ftrace_function)

int	unregister_ftrace_function (struct ftrace_ops *ops)

	EXPORT_SYMBOL_GPL (unregister_ftrace_function)

int	ftrace_enable_sysctl (struct ctl_table table, int write, void __user buffer, size_t lenp, loff_t ppos)

Macro Definition Documentation

#define FL_GLOBAL_CONTROL_MASK (FTRACE_OPS_FL_GLOBAL | FTRACE_OPS_FL_CONTROL)

Definition at line 65 of file ftrace.c.

#define FTRACE_FUNC_HASHSIZE (1 << FTRACE_HASH_BITS)

Definition at line 61 of file ftrace.c.

#define FTRACE_HASH_BITS 7

Definition at line 60 of file ftrace.c.

#define FTRACE_HASH_DEFAULT_BITS 10

Definition at line 62 of file ftrace.c.

#define FTRACE_HASH_MAX_BITS 12

Definition at line 63 of file ftrace.c.

#define ftrace_ops_list_func ((ftrace_func_t)ftrace_ops_no_ops)

Definition at line 111 of file ftrace.c.

#define ftrace_shutdown	(	ops,
		command
	)	do { } while (0)

Definition at line 4068 of file ftrace.c.

#define ftrace_shutdown_sysctl ( ) do { } while (0)

Definition at line 4070 of file ftrace.c.

#define ftrace_startup	(	ops,
		command
	)

Value:

({                      \
        (ops)->flags |= FTRACE_OPS_FL_ENABLED;  \
        0;                  \
    })

Definition at line 4063 of file ftrace.c.

#define ftrace_startup_sysctl ( ) do { } while (0)

Definition at line 4069 of file ftrace.c.

#define FTRACE_WARN_ON ( cond )

Value:

({                  \
        int ___r = cond;        \
        if (WARN_ON(___r))      \
            ftrace_kill();      \
        ___r;               \
    })

Definition at line 43 of file ftrace.c.

#define FTRACE_WARN_ON_ONCE ( cond )

Value:

({                  \
        int ___r = cond;        \
        if (WARN_ON_ONCE(___r))     \
            ftrace_kill();      \
        ___r;               \
    })

Definition at line 51 of file ftrace.c.

Function Documentation

void clear_ftrace_function ( void )

clear_ftrace_function - reset the ftrace function

This NULLs the ftrace function and in essence stops tracing. There may be lag

Definition at line 182 of file ftrace.c.

device_initcall ( ftrace_nodyn_init )

EXPORT_SYMBOL_GPL ( register_ftrace_function )

EXPORT_SYMBOL_GPL ( unregister_ftrace_function )

fs_initcall ( ftrace_init_debugfs )

int ftrace_enable_sysctl	(	struct ctl_table *	table,
		int	write,
		void __user *	buffer,
		size_t *	lenp,
		loff_t *	ppos
	)

Definition at line 4499 of file ftrace.c.

int ftrace_is_dead ( void )

Test if ftrace is dead or not.

Definition at line 4446 of file ftrace.c.

void ftrace_kill ( void )

ftrace_kill - kill ftrace

This function should be used by panic code. It stops ftrace but in a not so nice way. If you need to simply kill ftrace from a non-atomic section, use ftrace_kill.

Definition at line 4436 of file ftrace.c.

int ftrace_nr_registered_ops ( void )

ftrace_nr_registered_ops - return number of ops registered

Returns the number of ftrace_ops registered and tracing functions

Definition at line 119 of file ftrace.c.

LIST_HEAD ( ftrace_pids )

int register_ftrace_function ( struct ftrace_ops * ops )

register_ftrace_function - register a function for profiling - ops structure that holds the function for profiling.

Register a function to be called by all functions in the kernel.

Note: ->func and all the functions it calls must be labeled with "notrace", otherwise it will go into a recursive loop.

Definition at line 4462 of file ftrace.c.

int unregister_ftrace_function ( struct ftrace_ops * ops )

unregister_ftrace_function - unregister a function for profiling. - ops structure that holds the function to unregister

Unregister a function that was added to be called by ftrace profiling.

Definition at line 4484 of file ftrace.c.

Data Structures

Macros

Functions

Macro Definition Documentation

Function Documentation