hw_breakpoint.c File Reference

#include <linux/irqflags.h>
#include <linux/kallsyms.h>
#include <linux/notifier.h>
#include <linux/kprobes.h>
#include <linux/kdebug.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/percpu.h>
#include <linux/sched.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/list.h>
#include <linux/cpu.h>
#include <linux/smp.h>
#include <linux/hw_breakpoint.h>

Go to the source code of this file.

Data Structures
struct	bp_busy_slots

Functions
__weak int	hw_breakpoint_weight (struct perf_event *bp)
__weak void	arch_unregister_hw_breakpoint (struct perf_event *bp)
int	reserve_bp_slot (struct perf_event *bp)
void	release_bp_slot (struct perf_event *bp)
int	dbg_reserve_bp_slot (struct perf_event *bp)
int	dbg_release_bp_slot (struct perf_event *bp)
int	register_perf_hw_breakpoint (struct perf_event *bp)
struct perf_event *	register_user_hw_breakpoint (struct perf_event_attr *attr, perf_overflow_handler_t triggered, void *context, struct task_struct *tsk)
	EXPORT_SYMBOL_GPL (register_user_hw_breakpoint)
int	modify_user_hw_breakpoint (struct perf_event *bp, struct perf_event_attr *attr)
	EXPORT_SYMBOL_GPL (modify_user_hw_breakpoint)
void	unregister_hw_breakpoint (struct perf_event *bp)
	EXPORT_SYMBOL_GPL (unregister_hw_breakpoint)
struct perf_event *__percpu *	register_wide_hw_breakpoint (struct perf_event_attr *attr, perf_overflow_handler_t triggered, void *context)
	EXPORT_SYMBOL_GPL (register_wide_hw_breakpoint)
void	unregister_wide_hw_breakpoint (struct perf_event *__percpu *cpu_events)
	EXPORT_SYMBOL_GPL (unregister_wide_hw_breakpoint)
int __init	init_hw_breakpoint (void)

Function Documentation

__weak void arch_unregister_hw_breakpoint

(

struct perf_event *

bp

)

Definition at line 249 of file hw_breakpoint.c.

int dbg_release_bp_slot

(

struct perf_event *

bp

)

Definition at line 378 of file hw_breakpoint.c.

int dbg_reserve_bp_slot

(

struct perf_event *

bp

)

Definition at line 370 of file hw_breakpoint.c.

EXPORT_SYMBOL_GPL

(

register_user_hw_breakpoint

)

EXPORT_SYMBOL_GPL

(

modify_user_hw_breakpoint

)

EXPORT_SYMBOL_GPL

(

unregister_hw_breakpoint

)

EXPORT_SYMBOL_GPL

(

register_wide_hw_breakpoint

)

EXPORT_SYMBOL_GPL

(

unregister_wide_hw_breakpoint

)

__weak int hw_breakpoint_weight

(

struct perf_event *

bp

)

Definition at line 80 of file hw_breakpoint.c.

int __init init_hw_breakpoint

(

void

)

Definition at line 651 of file hw_breakpoint.c.

int modify_user_hw_breakpoint	(	struct perf_event *	bp,
		struct perf_event_attr *	attr
	)

modify_user_hw_breakpoint - modify a user-space hardware breakpoint : the breakpoint structure to modify : new breakpoint attributes : callback to trigger when we hit the breakpoint : pointer to 'task_struct' of the process to which the address belongs

Definition at line 451 of file hw_breakpoint.c.

int register_perf_hw_breakpoint

(

struct perf_event *

bp

)

Definition at line 410 of file hw_breakpoint.c.

struct perf_event* register_user_hw_breakpoint ( struct perf_event_attr *  attr, perf_overflow_handler_t  triggered, void *  context, struct task_struct *  tsk  )

read

register_user_hw_breakpoint - register a hardware breakpoint for user space : breakpoint attributes : callback to trigger when we hit the breakpoint : pointer to 'task_struct' of the process to which the address belongs

Definition at line 434 of file hw_breakpoint.c.

struct perf_event* __percpu* register_wide_hw_breakpoint ( struct perf_event_attr *  attr, perf_overflow_handler_t  triggered, void *  context  )

read

register_wide_hw_breakpoint - register a wide breakpoint in the kernel : breakpoint attributes : callback to trigger when we hit the breakpoint

Returns

a set of per_cpu pointers to perf events

Definition at line 517 of file hw_breakpoint.c.

void release_bp_slot

(

struct perf_event *

bp

)

Definition at line 355 of file hw_breakpoint.c.

int reserve_bp_slot

(

struct perf_event *

bp

)

Definition at line 332 of file hw_breakpoint.c.

void unregister_hw_breakpoint

(

struct perf_event *

bp

)

unregister_hw_breakpoint - unregister a user-space hardware breakpoint : the breakpoint structure to unregister

Definition at line 501 of file hw_breakpoint.c.

void unregister_wide_hw_breakpoint

(

struct perf_event *__percpu *

cpu_events

)

unregister_wide_hw_breakpoint - unregister a wide breakpoint in the kernel : the per cpu set of events to unregister

Definition at line 564 of file hw_breakpoint.c.