1 /* $NetBSD: procfs_linux.c,v 1.9 2003/06/28 14:22:04 darrenr 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 1.9 2003/06/28 14:22:04 darrenr 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 #include <sys/resource.h> 48 #include <sys/resourcevar.h> 49 #include <sys/signal.h> 50 #include <sys/signalvar.h> 51 #include <sys/tty.h> 52 53 #include <miscfs/procfs/procfs.h> 54 55 #include <uvm/uvm_extern.h> 56 #include <uvm/uvm.h> 57 58 #define PGTOB(p) ((unsigned long)(p) << PAGE_SHIFT) 59 #define PGTOKB(p) ((unsigned long)(p) << (PAGE_SHIFT - 10)) 60 61 /* 62 * Linux compatible /proc/meminfo. Only active when the -o linux 63 * mountflag is used. 64 */ 65 int 66 procfs_domeminfo(struct lwp *curl, struct proc *p, struct pfsnode *pfs, 67 struct uio *uio) 68 { 69 char buf[512], *cp; 70 int len, error; 71 72 len = snprintf(buf, sizeof buf, 73 " total: used: free: shared: buffers: cached:\n" 74 "Mem: %8lu %8lu %8lu %8lu %8lu %8lu\n" 75 "Swap: %8lu %8lu %8lu\n" 76 "MemTotal: %8lu kB\n" 77 "MemFree: %8lu kB\n" 78 "MemShared: %8lu kB\n" 79 "Buffers: %8lu kB\n" 80 "Cached: %8lu kB\n" 81 "SwapTotal: %8lu kB\n" 82 "SwapFree: %8lu kB\n", 83 PGTOB(uvmexp.npages), 84 PGTOB(uvmexp.npages - uvmexp.free), 85 PGTOB(uvmexp.free), 86 0L, 87 PGTOB(uvmexp.filepages), 88 PGTOB(uvmexp.anonpages + uvmexp.filepages + uvmexp.execpages), 89 PGTOB(uvmexp.swpages), 90 PGTOB(uvmexp.swpginuse), 91 PGTOB(uvmexp.swpages - uvmexp.swpginuse), 92 PGTOKB(uvmexp.npages), 93 PGTOKB(uvmexp.free), 94 0L, 95 PGTOKB(uvmexp.filepages), 96 PGTOKB(uvmexp.anonpages + uvmexp.filepages + uvmexp.execpages), 97 PGTOKB(uvmexp.swpages), 98 PGTOKB(uvmexp.swpages - uvmexp.swpginuse)); 99 100 if (len == 0) 101 return 0; 102 103 len -= uio->uio_offset; 104 cp = buf + uio->uio_offset; 105 len = imin(len, uio->uio_resid); 106 if (len <= 0) 107 error = 0; 108 else 109 error = uiomove(cp, len, uio); 110 return error; 111 } 112 113 /* 114 * Linux compatible /proc/<pid>/stat. Only active when the -o linux 115 * mountflag is used. 116 */ 117 int 118 procfs_do_pid_stat(struct lwp *curl, struct lwp *l, struct pfsnode *pfs, 119 struct uio *uio) 120 { 121 struct proc *p = curl->l_proc; 122 char buf[512], *cp; 123 int len, error; 124 struct tty *tty = p->p_session->s_ttyp; 125 struct rusage *ru = &p->p_stats->p_ru; 126 struct rusage *cru = &p->p_stats->p_cru; 127 struct vm_map *map = &p->p_vmspace->vm_map; 128 struct vm_map_entry *entry, *last = NULL; 129 unsigned long stext = 0, etext = 0, sstack = 0; 130 131 if (map != &curproc->p_vmspace->vm_map) 132 vm_map_lock_read(map); 133 for (entry = map->header.next; entry != &map->header; 134 entry = entry->next) { 135 if (UVM_ET_ISSUBMAP(entry)) 136 continue; 137 /* assume text is the first entry */ 138 if (stext == etext) { 139 stext = entry->start; 140 etext = entry->end; 141 } 142 last = entry; 143 } 144 /* assume stack is the last entry */ 145 if (last != NULL) 146 sstack = last->start; 147 148 if (map != &curproc->p_vmspace->vm_map) 149 vm_map_unlock_read(map); 150 151 len = snprintf(buf, sizeof(buf), 152 "%d (%s) %c %d %d %d %d %d " 153 "%u " 154 "%lu %lu %lu %lu %lu %lu %lu %lu " 155 "%d %d %d " 156 "%lu %lu %lu %lu %" PRIu64 " " 157 "%lu %lu %lu " 158 "%u %u " 159 "%u %u %u %u " 160 "%lu %lu %lu %d %d\n", 161 162 p->p_pid, 163 p->p_comm, 164 "0IR3SZD"[(p->p_stat > 6) ? 0 : (int)p->p_stat], 165 p->p_pptr->p_pid, 166 167 p->p_pgid, 168 p->p_session->s_sid, 169 tty ? tty->t_dev : 0, 170 tty ? tty->t_pgrp->pg_id : 0, 171 172 p->p_flag, 173 174 ru->ru_minflt, 175 cru->ru_minflt, 176 ru->ru_majflt, 177 cru->ru_majflt, 178 ru->ru_utime.tv_sec, 179 ru->ru_stime.tv_sec, 180 cru->ru_utime.tv_sec, 181 cru->ru_stime.tv_sec, 182 183 p->p_nice, /* XXX: priority */ 184 p->p_nice, 185 0, 186 187 p->p_rtime.tv_sec, 188 p->p_stats->p_start.tv_sec, 189 ru->ru_ixrss + ru->ru_idrss + ru->ru_isrss, 190 ru->ru_maxrss, 191 p->p_rlimit[RLIMIT_RSS].rlim_cur, 192 193 stext, /* start code */ 194 etext, /* end code */ 195 sstack, /* mm start stack */ 196 0, /* XXX: pc */ 197 0, /* XXX: sp */ 198 p->p_sigctx.ps_siglist.__bits[0], /* pending */ 199 p->p_sigctx.ps_sigmask.__bits[0], /* blocked */ 200 p->p_sigctx.ps_sigignore.__bits[0], /* ignored */ 201 p->p_sigctx.ps_sigcatch.__bits[0], /* caught */ 202 203 (unsigned long)(intptr_t)l->l_wchan, 204 ru->ru_nvcsw, 205 ru->ru_nivcsw, 206 p->p_exitsig, 207 0); /* XXX: processor */ 208 209 if (len == 0) 210 return 0; 211 212 len -= uio->uio_offset; 213 cp = buf + uio->uio_offset; 214 len = imin(len, uio->uio_resid); 215 if (len <= 0) 216 error = 0; 217 else 218 error = uiomove(cp, len, uio); 219 return error; 220 } 221 222 int 223 procfs_docpuinfo(struct lwp *curl, struct proc *p, struct pfsnode *pfs, 224 struct uio *uio) 225 { 226 char buf[512], *cp; 227 int len, error; 228 229 len = sizeof buf; 230 if (procfs_getcpuinfstr(buf, &len) < 0) 231 return EIO; 232 233 if (len == 0) 234 return 0; 235 236 len -= uio->uio_offset; 237 cp = buf + uio->uio_offset; 238 len = imin(len, uio->uio_resid); 239 if (len <= 0) 240 error = 0; 241 else 242 error = uiomove(cp, len, uio); 243 return error; 244 } 245 246 int 247 procfs_douptime(struct lwp *curl, struct proc *p, struct pfsnode *pfs, 248 struct uio *uio) 249 { 250 char buf[512], *cp; 251 int len, error; 252 struct timeval runtime; 253 u_int64_t idle; 254 255 timersub(&curcpu()->ci_schedstate.spc_runtime, &boottime, &runtime); 256 idle = curcpu()->ci_schedstate.spc_cp_time[CP_IDLE]; 257 /*###251 [cc] unterminated string or character constant%%%*/ 258 len = sprintf(buf, "%lu.%02lu %" PRIu64 ".%02" PRIu64 "\n", 259 runtime.tv_sec, runtime.tv_usec / 10000, 260 idle / hz, (((idle % hz) * 100) / hz) % 100); 261 262 if (len == 0) 263 return 0; 264 265 len -= uio->uio_offset; 266 cp = buf + uio->uio_offset; 267 len = imin(len, uio->uio_resid); 268 if (len <= 0) 269 error = 0; 270 else 271 error = uiomove(cp, len, uio); 272 return error; 273 } 274