/* $NetBSD: subr_syscall_stats.c,v 1.5 2019/01/27 02:08:43 pgoyette Exp $ */

/* $NetBSD: subr_syscall_stats.c,v 1.5 2019/01/27 02:08:43 pgoyette Exp $ */

/*-
* Copyright (c) 2007 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by David Laight.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: subr_syscall_stats.c,v 1.5 2019/01/27 02:08:43 pgoyette Exp $");

#include "opt_syscall_stats.h"

#include <sys/param.h>
#include <sys/syscall.h>
#include <sys/sysctl.h>

#include <sys/syscall_stats.h>

#ifdef SYSCALL_STATS
uint64_t syscall_counts[SYS_NSYSENT];
uint64_t syscall_count_user, syscall_count_system, syscall_count_interrupt;

#ifdef SYSCALL_TIMES
uint64_t syscall_times[SYS_NSYSENT];
#endif

SYSCTL_SETUP(sysctl_syscall_setup, "sysctl system call stats")
{
const struct sysctlnode *cnode;
int kern_syscalls;

sysctl_createv(clog, 0, NULL, &cnode,
CTLFLAG_PERMANENT,
CTLTYPE_NODE, "syscalls",
SYSCTL_DESCR("per syscall statistics"),
NULL, 0, NULL, 0,
CTL_KERN, CTL_CREATE);
kern_syscalls = cnode->sysctl_num;
sysctl_createv(clog, 0, NULL, NULL,
CTLFLAG_PERMANENT,
CTLTYPE_STRUCT, "counts",
SYSCTL_DESCR("per syscall counts"),
NULL, 0, syscall_counts, sizeof syscall_counts,
CTL_KERN, kern_syscalls, CTL_CREATE);
#ifdef SYSCALL_TIMES
sysctl_createv(clog, 0, NULL, NULL,
CTLFLAG_PERMANENT,
CTLTYPE_STRUCT, "times",
SYSCTL_DESCR("per syscall times"),
NULL, 0, syscall_times, sizeof syscall_times,
CTL_KERN, kern_syscalls, CTL_CREATE);
#endif
}
#endif