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 | |