C++ (Cpp) register_user_hw_breakpoint Examples

Example #1

File: ptrace.c Project: PurpleAlien/linux-linaro-natty

static struct perf_event *ptrace_hbp_create(struct task_struct *tsk, int type)
{
	struct perf_event_attr attr;

	ptrace_breakpoint_init(&attr);

	/* Initialise fields to sane defaults. */
	attr.bp_addr	= 0;
	attr.bp_len	= HW_BREAKPOINT_LEN_4;
	attr.bp_type	= type;
	attr.disabled	= 1;

	return register_user_hw_breakpoint(&attr, ptrace_hbptriggered, tsk);
}

Example #2

File: ptrace.c Project: BlissRoms-Kernels/kernel_motorola_BlissPure

static struct perf_event *ptrace_hbp_create(unsigned int note_type,
					    struct task_struct *tsk,
					    unsigned long idx)
{
	struct perf_event *bp;
	struct perf_event_attr attr;
	int err, type;

	switch (note_type) {
	case NT_ARM_HW_BREAK:
		type = HW_BREAKPOINT_X;
		break;
	case NT_ARM_HW_WATCH:
		type = HW_BREAKPOINT_RW;
		break;
	default:
		return ERR_PTR(-EINVAL);
	}

	ptrace_breakpoint_init(&attr);

	/*
	 * Initialise fields to sane defaults
	 * (i.e. values that will pass validation).
	 */
	attr.bp_addr	= 0;
	attr.bp_len	= HW_BREAKPOINT_LEN_4;
	attr.bp_type	= type;
	attr.disabled	= 1;

	bp = register_user_hw_breakpoint(&attr, ptrace_hbptriggered, NULL, tsk);
	if (IS_ERR(bp))
		return bp;

	err = ptrace_hbp_set_event(note_type, tsk, idx, bp);
	if (err)
		return ERR_PTR(err);

	return bp;
}