hw_breakpoint.c File Reference

#include <linux/errno.h>
#include <linux/hw_breakpoint.h>
#include <linux/perf_event.h>
#include <linux/ptrace.h>
#include <linux/smp.h>
#include <asm/compat.h>
#include <asm/current.h>
#include <asm/debug-monitors.h>
#include <asm/hw_breakpoint.h>
#include <asm/kdebug.h>
#include <asm/traps.h>
#include <asm/cputype.h>
#include <asm/system_misc.h>

Go to the source code of this file.

Macros
#define	pr_fmt(fmt)   "hw-breakpoint: " fmt
#define	READ_WB_REG_CASE(OFF, N, REG, VAL)
#define	WRITE_WB_REG_CASE(OFF, N, REG, VAL)
#define	GEN_READ_WB_REG_CASES(OFF, REG, VAL)
#define	GEN_WRITE_WB_REG_CASES(OFF, REG, VAL)

Functions
int	hw_breakpoint_slots (int type)
int	arch_install_hw_breakpoint (struct perf_event *bp)
void	arch_uninstall_hw_breakpoint (struct perf_event *bp)
int	arch_check_bp_in_kernelspace (struct perf_event *bp)
int	arch_bp_generic_fields (struct arch_hw_breakpoint_ctrl ctrl, int *gen_len, int *gen_type)
int	arch_validate_hwbkpt_settings (struct perf_event *bp)
int	reinstall_suspended_bps (struct pt_regs *regs)
void	hw_breakpoint_thread_switch (struct task_struct *next)
	arch_initcall (arch_hw_breakpoint_init)
void	hw_breakpoint_pmu_read (struct perf_event *bp)
int	hw_breakpoint_exceptions_notify (struct notifier_block *unused, unsigned long val, void *data)

Macro Definition Documentation

#define GEN_READ_WB_REG_CASES	(		OFF,
			REG,
			VAL
	)

Value:

READ_WB_REG_CASE(OFF,  0, REG, VAL);    \
    READ_WB_REG_CASE(OFF,  1, REG, VAL);    \
    READ_WB_REG_CASE(OFF,  2, REG, VAL);    \
    READ_WB_REG_CASE(OFF,  3, REG, VAL);    \
    READ_WB_REG_CASE(OFF,  4, REG, VAL);    \
    READ_WB_REG_CASE(OFF,  5, REG, VAL);    \
    READ_WB_REG_CASE(OFF,  6, REG, VAL);    \
    READ_WB_REG_CASE(OFF,  7, REG, VAL);    \
    READ_WB_REG_CASE(OFF,  8, REG, VAL);    \
    READ_WB_REG_CASE(OFF,  9, REG, VAL);    \
    READ_WB_REG_CASE(OFF, 10, REG, VAL);    \
    READ_WB_REG_CASE(OFF, 11, REG, VAL);    \
    READ_WB_REG_CASE(OFF, 12, REG, VAL);    \
    READ_WB_REG_CASE(OFF, 13, REG, VAL);    \
    READ_WB_REG_CASE(OFF, 14, REG, VAL);    \
    READ_WB_REG_CASE(OFF, 15, REG, VAL)

Definition at line 90 of file hw_breakpoint.c.

#define GEN_WRITE_WB_REG_CASES	(		OFF,
			REG,
			VAL
	)

Value:

WRITE_WB_REG_CASE(OFF,  0, REG, VAL);   \
    WRITE_WB_REG_CASE(OFF,  1, REG, VAL);   \
    WRITE_WB_REG_CASE(OFF,  2, REG, VAL);   \
    WRITE_WB_REG_CASE(OFF,  3, REG, VAL);   \
    WRITE_WB_REG_CASE(OFF,  4, REG, VAL);   \
    WRITE_WB_REG_CASE(OFF,  5, REG, VAL);   \
    WRITE_WB_REG_CASE(OFF,  6, REG, VAL);   \
    WRITE_WB_REG_CASE(OFF,  7, REG, VAL);   \
    WRITE_WB_REG_CASE(OFF,  8, REG, VAL);   \
    WRITE_WB_REG_CASE(OFF,  9, REG, VAL);   \
    WRITE_WB_REG_CASE(OFF, 10, REG, VAL);   \
    WRITE_WB_REG_CASE(OFF, 11, REG, VAL);   \
    WRITE_WB_REG_CASE(OFF, 12, REG, VAL);   \
    WRITE_WB_REG_CASE(OFF, 13, REG, VAL);   \
    WRITE_WB_REG_CASE(OFF, 14, REG, VAL);   \
    WRITE_WB_REG_CASE(OFF, 15, REG, VAL)

Definition at line 108 of file hw_breakpoint.c.

#define pr_fmt

(

fmt

)

"hw-breakpoint: " fmt

Definition at line 21 of file hw_breakpoint.c.

#define READ_WB_REG_CASE	(		OFF,
			N,
			REG,
			VAL
	)

Value:

case (OFF + N):             \
        AARCH64_DBG_READ(N, REG, VAL);  \
        break

Definition at line 80 of file hw_breakpoint.c.

#define WRITE_WB_REG_CASE	(		OFF,
			N,
			REG,
			VAL
	)

Value:

case (OFF + N):             \
        AARCH64_DBG_WRITE(N, REG, VAL); \
        break

Definition at line 85 of file hw_breakpoint.c.

Function Documentation

int arch_bp_generic_fields	(	struct arch_hw_breakpoint_ctrl	ctrl,
		int *	gen_len,
		int *	gen_type
	)

Definition at line 304 of file hw_breakpoint.c.

int arch_check_bp_in_kernelspace

(

struct perf_event *

bp

)

Definition at line 287 of file hw_breakpoint.c.

arch_initcall

(

arch_hw_breakpoint_init

)

int arch_install_hw_breakpoint

(

struct perf_event *

bp

)

Definition at line 175 of file hw_breakpoint.c.

void arch_uninstall_hw_breakpoint

(

struct perf_event *

bp

)

Definition at line 224 of file hw_breakpoint.c.

int arch_validate_hwbkpt_settings

(

struct perf_event *

bp

)

Definition at line 432 of file hw_breakpoint.c.

int hw_breakpoint_exceptions_notify	(	struct notifier_block *	unused,
		unsigned long	val,
		void *	data
	)

Definition at line 876 of file hw_breakpoint.c.

void hw_breakpoint_pmu_read

(

struct perf_event *

bp

)

Definition at line 869 of file hw_breakpoint.c.

int hw_breakpoint_slots

(

int

type

)

Definition at line 63 of file hw_breakpoint.c.

void hw_breakpoint_thread_switch

(

struct task_struct *

next

)

Definition at line 777 of file hw_breakpoint.c.

int reinstall_suspended_bps

(

struct pt_regs *

regs

)

Definition at line 720 of file hw_breakpoint.c.