Esempio n. 1
0
int register_perf_hw_breakpoint(struct perf_event *bp)
{
	int ret;

	ret = reserve_bp_slot(bp);
	if (ret)
		return ret;

	/*
	 * Ptrace breakpoints can be temporary perf events only
	 * meant to reserve a slot. In this case, it is created disabled and
	 * we don't want to check the params right now (as we put a null addr)
	 * But perf tools create events as disabled and we want to check
	 * the params for them.
	 * This is a quick hack that will be removed soon, once we remove
	 * the tmp breakpoints from ptrace
	 */
	if (!bp->attr.disabled || !bp->overflow_handler)
		ret = arch_validate_hwbkpt_settings(bp, bp->ctx->task);

	/* if arch_validate_hwbkpt_settings() fails then release bp slot */
	if (ret)
		release_bp_slot(bp);

	return ret;
}
Esempio n. 2
0
int register_perf_hw_breakpoint(struct perf_event *bp)
{
	int ret;

	ret = reserve_bp_slot(bp);
	if (ret)
		return ret;

	ret = validate_hw_breakpoint(bp);

	/* if arch_validate_hwbkpt_settings() fails then release bp slot */
	if (ret)
		release_bp_slot(bp);

	return ret;
}