1 /* $NetBSD: subr_syscall_stats.c,v 1.1 2007/02/18 16:58:16 dsl Exp $ */ 2 3 /*- 4 * Copyright (c) 2007 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by David Laight. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of The NetBSD Foundation nor the names of its 19 * contributors may be used to endorse or promote products derived 20 * from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 23 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 24 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 25 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 #include <sys/cdefs.h> 36 __RCSID("$NetBSD: subr_syscall_stats.c,v 1.1 2007/02/18 16:58:16 dsl Exp $"); 37 38 #include "opt_syscall_stats.h" 39 40 #include <sys/param.h> 41 #include <sys/syscall.h> 42 #include <sys/sysctl.h> 43 44 #include <sys/syscall_stats.h> 45 46 #ifdef SYSCALL_STATS 47 uint64_t syscall_counts[SYS_NSYSENT]; 48 uint64_t syscall_count_user, syscall_count_system, syscall_count_interrupt; 49 50 #ifdef SYSCALL_TIMES 51 uint64_t syscall_times[SYS_NSYSENT]; 52 #endif 53 54 SYSCTL_SETUP(sysctl_syscall_setup, "sysctl system call stats") 55 { 56 const struct sysctlnode *cnode; 57 int kern_syscalls; 58 59 sysctl_createv(clog, 0, NULL, NULL, 60 CTLFLAG_PERMANENT, 61 CTLTYPE_NODE, "kern", NULL, 62 NULL, 0, NULL, 0, 63 CTL_KERN, CTL_EOL); 64 sysctl_createv(clog, 0, NULL, &cnode, 65 CTLFLAG_PERMANENT, 66 CTLTYPE_NODE, "syscalls", 67 SYSCTL_DESCR("per syscall statistics"), 68 NULL, 0, NULL, 0, 69 CTL_KERN, CTL_CREATE); 70 kern_syscalls = cnode->sysctl_num; 71 sysctl_createv(clog, 0, NULL, NULL, 72 CTLFLAG_PERMANENT, 73 CTLTYPE_STRUCT, "counts", 74 SYSCTL_DESCR("per syscall counts"), 75 NULL, 0, syscall_counts, sizeof syscall_counts, 76 CTL_KERN, kern_syscalls, CTL_CREATE); 77 #ifdef SYSCALL_TIMES 78 sysctl_createv(clog, 0, NULL, NULL, 79 CTLFLAG_PERMANENT, 80 CTLTYPE_STRUCT, "times", 81 SYSCTL_DESCR("per syscall times"), 82 NULL, 0, syscall_times, sizeof syscall_times, 83 CTL_KERN, kern_syscalls, CTL_CREATE); 84 #endif 85 } 86 #endif 87