| 1 | /* $NetBSD: linux32_sysinfo.c,v 1.7 2008/11/19 18:36:04 ad 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 1.7 2008/11/19 18:36:04 ad 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 | si.uptime = time_uptime; |
| 74 | la = &averunnable; |
| 75 | si.loads[0] = la->ldavg[0] * LINUX_SYSINFO_LOADS_SCALE / la->fscale; |
| 76 | si.loads[1] = la->ldavg[1] * LINUX_SYSINFO_LOADS_SCALE / la->fscale; |
| 77 | si.loads[2] = la->ldavg[2] * LINUX_SYSINFO_LOADS_SCALE / la->fscale; |
| 78 | si.totalram = ctob((u_long)physmem); |
| 79 | si.freeram = (u_long)uvmexp.free * uvmexp.pagesize; |
| 80 | si.sharedram = 0; /* XXX */ |
| 81 | si.bufferram = (u_long)uvmexp.filepages * uvmexp.pagesize; |
| 82 | si.totalswap = (u_long)uvmexp.swpages * uvmexp.pagesize; |
| 83 | si.freeswap = |
| 84 | (u_long)(uvmexp.swpages - uvmexp.swpginuse) * uvmexp.pagesize; |
| 85 | si.procs = nprocs; |
| 86 | |
| 87 | /* The following are only present in newer Linux kernels. */ |
| 88 | si.totalbig = 0; |
| 89 | si.freebig = 0; |
| 90 | si.mem_unit = 1; |
| 91 | |
| 92 | return (copyout(&si, SCARG_P32(uap, arg), sizeof si)); |
| 93 | } |
| 94 | |
| 95 | |