1 /* $NetBSD: procfs_linux.c,v 1.4 2001/12/09 03:07:44 chs Exp $ */ 2 3 /* 4 * Copyright (c) 2001 Wasabi Systems, Inc. 5 * All rights reserved. 6 * 7 * Written by Frank van der Linden for Wasabi Systems, Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed for the NetBSD Project by 20 * Wasabi Systems, Inc. 21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 * or promote products derived from this software without specific prior 23 * written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 #include <sys/cdefs.h> 39 __KERNEL_RCSID(0, "$NetBSD: procfs_linux.c,v 1.4 2001/12/09 03:07:44 chs Exp $"); 40 41 #include <sys/param.h> 42 #include <sys/systm.h> 43 #include <sys/time.h> 44 #include <sys/kernel.h> 45 #include <sys/proc.h> 46 #include <sys/vnode.h> 47 48 #include <miscfs/procfs/procfs.h> 49 50 #include <uvm/uvm_extern.h> 51 52 #define PGTOB(p) ((unsigned long)(p) << PAGE_SHIFT) 53 #define PGTOKB(p) ((unsigned long)(p) << (PAGE_SHIFT - 10)) 54 55 /* 56 * Linux compatible /proc/meminfo. Only active when the -o linux 57 * mountflag is used. 58 */ 59 int 60 procfs_domeminfo(struct proc *curp, struct proc *p, struct pfsnode *pfs, 61 struct uio *uio) 62 { 63 char buf[512], *cp; 64 int len, error; 65 66 len = snprintf(buf, sizeof buf, 67 " total: used: free: shared: buffers: cached:\n" 68 "Mem: %8lu %8lu %8lu %8lu %8lu %8lu\n" 69 "Swap: %8lu %8lu %8lu\n" 70 "MemTotal: %8lu kB\n" 71 "MemFree: %8lu kB\n" 72 "MemShared: %8lu kB\n" 73 "Buffers: %8lu kB\n" 74 "Cached: %8lu kB\n" 75 "SwapTotal: %8lu kB\n" 76 "SwapFree: %8lu kB\n", 77 PGTOB(uvmexp.npages), 78 PGTOB(uvmexp.npages - uvmexp.free), 79 PGTOB(uvmexp.free), 80 0L, 81 PGTOB(uvmexp.filepages), 82 PGTOB(uvmexp.anonpages + uvmexp.filepages + uvmexp.execpages), 83 PGTOB(uvmexp.swpages), 84 PGTOB(uvmexp.swpginuse), 85 PGTOB(uvmexp.swpages - uvmexp.swpginuse), 86 PGTOKB(uvmexp.npages), 87 PGTOKB(uvmexp.free), 88 0L, 89 PGTOKB(uvmexp.filepages), 90 PGTOKB(uvmexp.anonpages + uvmexp.filepages + uvmexp.execpages), 91 PGTOKB(uvmexp.swpages), 92 PGTOKB(uvmexp.swpages - uvmexp.swpginuse)); 93 94 if (len == 0) 95 return 0; 96 97 len -= uio->uio_offset; 98 cp = buf + uio->uio_offset; 99 len = imin(len, uio->uio_resid); 100 if (len <= 0) 101 error = 0; 102 else 103 error = uiomove(cp, len, uio); 104 return error; 105 } 106 107 int 108 procfs_docpuinfo(struct proc *curp, struct proc *p, struct pfsnode *pfs, 109 struct uio *uio) 110 { 111 char buf[512], *cp; 112 int len, error; 113 114 len = sizeof buf; 115 if (procfs_getcpuinfstr(buf, &len) < 0) 116 return EIO; 117 118 if (len == 0) 119 return 0; 120 121 len -= uio->uio_offset; 122 cp = buf + uio->uio_offset; 123 len = imin(len, uio->uio_resid); 124 if (len <= 0) 125 error = 0; 126 else 127 error = uiomove(cp, len, uio); 128 return error; 129 } 130