hw_breakpoint.c File Reference

#include <linux/errno.h>
#include <linux/hardirq.h>
#include <linux/perf_event.h>
#include <linux/hw_breakpoint.h>
#include <linux/smp.h>
#include <asm/cacheflush.h>
#include <asm/cputype.h>
#include <asm/current.h>
#include <asm/hw_breakpoint.h>
#include <asm/kdebug.h>
#include <asm/traps.h>

Go to the source code of this file.

Macros
#define	pr_fmt(fmt)   "hw-breakpoint: " fmt
#define	READ_WB_REG_CASE(OP2, M, VAL)
#define	WRITE_WB_REG_CASE(OP2, M, VAL)
#define	GEN_READ_WB_REG_CASES(OP2, VAL)
#define	GEN_WRITE_WB_REG_CASES(OP2, VAL)

Functions
u8	arch_get_debug_arch (void)
int	hw_breakpoint_slots (int type)
u8	arch_get_max_wp_len (void)
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)
	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	(		OP2,
			VAL
	)

Value:

READ_WB_REG_CASE(OP2, 0, VAL);      \
    READ_WB_REG_CASE(OP2, 1, VAL);      \
    READ_WB_REG_CASE(OP2, 2, VAL);      \
    READ_WB_REG_CASE(OP2, 3, VAL);      \
    READ_WB_REG_CASE(OP2, 4, VAL);      \
    READ_WB_REG_CASE(OP2, 5, VAL);      \
    READ_WB_REG_CASE(OP2, 6, VAL);      \
    READ_WB_REG_CASE(OP2, 7, VAL);      \
    READ_WB_REG_CASE(OP2, 8, VAL);      \
    READ_WB_REG_CASE(OP2, 9, VAL);      \
    READ_WB_REG_CASE(OP2, 10, VAL);     \
    READ_WB_REG_CASE(OP2, 11, VAL);     \
    READ_WB_REG_CASE(OP2, 12, VAL);     \
    READ_WB_REG_CASE(OP2, 13, VAL);     \
    READ_WB_REG_CASE(OP2, 14, VAL);     \
    READ_WB_REG_CASE(OP2, 15, VAL)

Definition at line 65 of file hw_breakpoint.c.

#define GEN_WRITE_WB_REG_CASES	(		OP2,
			VAL
	)

Value:

WRITE_WB_REG_CASE(OP2, 0, VAL);     \
    WRITE_WB_REG_CASE(OP2, 1, VAL);     \
    WRITE_WB_REG_CASE(OP2, 2, VAL);     \
    WRITE_WB_REG_CASE(OP2, 3, VAL);     \
    WRITE_WB_REG_CASE(OP2, 4, VAL);     \
    WRITE_WB_REG_CASE(OP2, 5, VAL);     \
    WRITE_WB_REG_CASE(OP2, 6, VAL);     \
    WRITE_WB_REG_CASE(OP2, 7, VAL);     \
    WRITE_WB_REG_CASE(OP2, 8, VAL);     \
    WRITE_WB_REG_CASE(OP2, 9, VAL);     \
    WRITE_WB_REG_CASE(OP2, 10, VAL);    \
    WRITE_WB_REG_CASE(OP2, 11, VAL);    \
    WRITE_WB_REG_CASE(OP2, 12, VAL);    \
    WRITE_WB_REG_CASE(OP2, 13, VAL);    \
    WRITE_WB_REG_CASE(OP2, 14, VAL);    \
    WRITE_WB_REG_CASE(OP2, 15, VAL)

Definition at line 83 of file hw_breakpoint.c.

#define pr_fmt

(

fmt

)

"hw-breakpoint: " fmt

Definition at line 24 of file hw_breakpoint.c.

#define READ_WB_REG_CASE	(		OP2,
			M,
			VAL
	)

Value:

case ((OP2 << 4) + M):          \
        ARM_DBG_READ(c ## M, OP2, VAL); \
        break

Definition at line 55 of file hw_breakpoint.c.

#define WRITE_WB_REG_CASE	(		OP2,
			M,
			VAL
	)

Value:

case ((OP2 << 4) + M):          \
        ARM_DBG_WRITE(c ## M, OP2, VAL);\
        break

Definition at line 60 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 475 of file hw_breakpoint.c.

int arch_check_bp_in_kernelspace

(

struct perf_event *

bp

)

Definition at line 458 of file hw_breakpoint.c.

u8 arch_get_debug_arch

(

void

)

Definition at line 148 of file hw_breakpoint.c.

u8 arch_get_max_wp_len

(

void

)

Definition at line 319 of file hw_breakpoint.c.

arch_initcall

(

arch_hw_breakpoint_init

)

int arch_install_hw_breakpoint

(

struct perf_event *

bp

)

Definition at line 327 of file hw_breakpoint.c.

void arch_uninstall_hw_breakpoint

(

struct perf_event *

bp

)

Definition at line 391 of file hw_breakpoint.c.

int arch_validate_hwbkpt_settings

(

struct perf_event *

bp

)

Definition at line 593 of file hw_breakpoint.c.

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

Definition at line 1062 of file hw_breakpoint.c.

void hw_breakpoint_pmu_read

(

struct perf_event *

bp

)

Definition at line 1055 of file hw_breakpoint.c.

int hw_breakpoint_slots

(

int

type

)

Definition at line 273 of file hw_breakpoint.c.