1 /* $NetBSD: linux32_sysinfo.c,v 1.8 2019/08/23 08:01:43 maxv Exp $ */ 2 3 /*- 4 * Copyright (c) 2006 Emmanuel Dreyfus, all rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Emmanuel Dreyfus 17 * 4. The name of the author may not be used to endorse or promote 18 * products derived from this software without specific prior written 19 * permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE THE AUTHOR AND CONTRIBUTORS ``AS IS'' 22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 23 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/cdefs.h> 35 36 __KERNEL_RCSID(0, "$NetBSD: linux32_sysinfo.c,v 1.8 2019/08/23 08:01:43 maxv Exp $"); 37 38 #include <sys/types.h> 39 #include <sys/param.h> 40 #include <sys/kernel.h> 41 #include <sys/dirent.h> 42 #include <sys/proc.h> 43 44 #include <sys/syscallargs.h> 45 46 #include <uvm/uvm_extern.h> 47 48 #include <compat/netbsd32/netbsd32.h> 49 #include <compat/netbsd32/netbsd32_conv.h> 50 #include <compat/netbsd32/netbsd32_syscallargs.h> 51 52 #include <compat/linux/common/linux_types.h> 53 #include <compat/linux/common/linux_signal.h> 54 #include <compat/linux/common/linux_misc.h> 55 #include <compat/linux/common/linux_ipc.h> 56 #include <compat/linux/common/linux_sem.h> 57 #include <compat/linux/linux_syscallargs.h> 58 59 #include <compat/linux32/common/linux32_types.h> 60 #include <compat/linux32/common/linux32_signal.h> 61 #include <compat/linux32/linux32_syscallargs.h> 62 63 /* ARGSUSED */ 64 int 65 linux32_sys_sysinfo(struct lwp *l, const struct linux32_sys_sysinfo_args *uap, register_t *retval) 66 { 67 /* { 68 syscallarg(struct linux32_sysinfo *) arg; 69 } */ 70 struct linux32_sysinfo si; 71 struct loadavg *la; 72 73 memset(&si, 0, sizeof(si)); 74 si.uptime = time_uptime; 75 la = &averunnable; 76 si.loads[0] = la->ldavg[0] * LINUX_SYSINFO_LOADS_SCALE / la->fscale; 77 si.loads[1] = la->ldavg[1] * LINUX_SYSINFO_LOADS_SCALE / la->fscale; 78 si.loads[2] = la->ldavg[2] * LINUX_SYSINFO_LOADS_SCALE / la->fscale; 79 si.totalram = ctob((u_long)physmem); 80 si.freeram = (u_long)uvmexp.free * uvmexp.pagesize; 81 si.sharedram = 0; /* XXX */ 82 si.bufferram = (u_long)uvmexp.filepages * uvmexp.pagesize; 83 si.totalswap = (u_long)uvmexp.swpages * uvmexp.pagesize; 84 si.freeswap = 85 (u_long)(uvmexp.swpages - uvmexp.swpginuse) * uvmexp.pagesize; 86 si.procs = nprocs; 87 88 /* The following are only present in newer Linux kernels. */ 89 si.totalbig = 0; 90 si.freebig = 0; 91 si.mem_unit = 1; 92 93 return (copyout(&si, SCARG_P32(uap, arg), sizeof si)); 94 } 95 96