1 /* $NetBSD: procfs_linux.c,v 1.15 2003/10/30 14:51:01 christos 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 1.15 2003/10/30 14:51:01 christos 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/exec.h> 48 #include <sys/resource.h> 49 #include <sys/resourcevar.h> 50 #include <sys/signal.h> 51 #include <sys/signalvar.h> 52 #include <sys/tty.h> 53 54 #include <miscfs/procfs/procfs.h> 55 #include <compat/linux/common/linux_exec.h> 56 57 #include <uvm/uvm_extern.h> 58 #include <uvm/uvm.h> 59 60 #define PGTOB(p) ((unsigned long)(p) << PAGE_SHIFT) 61 #define PGTOKB(p) ((unsigned long)(p) << (PAGE_SHIFT - 10)) 62 63 /* 64 * Linux compatible /proc/meminfo. Only active when the -o linux 65 * mountflag is used. 66 */ 67 int 68 procfs_domeminfo(struct proc *curp, struct proc *p, struct pfsnode *pfs, 69 struct uio *uio) 70 { 71 char buf[512], *cp; 72 int len, error; 73 74 len = snprintf(buf, sizeof buf, 75 " total: used: free: shared: buffers: cached:\n" 76 "Mem: %8lu %8lu %8lu %8lu %8lu %8lu\n" 77 "Swap: %8lu %8lu %8lu\n" 78 "MemTotal: %8lu kB\n" 79 "MemFree: %8lu kB\n" 80 "MemShared: %8lu kB\n" 81 "Buffers: %8lu kB\n" 82 "Cached: %8lu kB\n" 83 "SwapTotal: %8lu kB\n" 84 "SwapFree: %8lu kB\n", 85 PGTOB(uvmexp.npages), 86 PGTOB(uvmexp.npages - uvmexp.free), 87 PGTOB(uvmexp.free), 88 0L, 89 PGTOB(uvmexp.filepages), 90 PGTOB(uvmexp.anonpages + uvmexp.filepages + uvmexp.execpages), 91 PGTOB(uvmexp.swpages), 92 PGTOB(uvmexp.swpginuse), 93 PGTOB(uvmexp.swpages - uvmexp.swpginuse), 94 PGTOKB(uvmexp.npages), 95 PGTOKB(uvmexp.free), 96 0L, 97 PGTOKB(uvmexp.filepages), 98 PGTOKB(uvmexp.anonpages + uvmexp.filepages + uvmexp.execpages), 99 PGTOKB(uvmexp.swpages), 100 PGTOKB(uvmexp.swpages - uvmexp.swpginuse)); 101 102 if (len == 0) 103 return 0; 104 105 len -= uio->uio_offset; 106 cp = buf + uio->uio_offset; 107 len = imin(len, uio->uio_resid); 108 if (len <= 0) 109 error = 0; 110 else 111 error = uiomove(cp, len, uio); 112 return error; 113 } 114 115 /* 116 * Linux compatible /proc/<pid>/stat. Only active when the -o linux 117 * mountflag is used. 118 */ 119 int 120 procfs_do_pid_stat(struct proc *p, struct lwp *l, struct pfsnode *pfs, 121 struct uio *uio) 122 { 123 char buf[512], *cp; 124 int len, error; 125 struct tty *tty = p->p_session->s_ttyp; 126 struct rusage *ru = &p->p_stats->p_ru; 127 struct rusage *cru = &p->p_stats->p_cru; 128 struct vm_map *map = &p->p_vmspace->vm_map; 129 struct vm_map_entry *entry; 130 unsigned long stext = 0, etext = 0, sstack = 0; 131 132 if (map != &curproc->p_vmspace->vm_map) 133 vm_map_lock_read(map); 134 for (entry = map->header.next; entry != &map->header; 135 entry = entry->next) { 136 if (UVM_ET_ISSUBMAP(entry)) 137 continue; 138 /* assume text is the first entry */ 139 if (stext == etext) { 140 stext = entry->start; 141 etext = entry->end; 142 break; 143 } 144 } 145 #ifdef LINUX_USRSTACK 146 if (strcmp(p->p_emul->e_name, "linux") == 0 && 147 LINUX_USRSTACK < USRSTACK) 148 sstack = (unsigned long) LINUX_USRSTACK; 149 else 150 #endif 151 sstack = (unsigned long) USRSTACK; 152 153 if (map != &curproc->p_vmspace->vm_map) 154 vm_map_unlock_read(map); 155 156 len = snprintf(buf, sizeof(buf), 157 "%d (%s) %c %d %d %d %d %d " 158 "%u " 159 "%lu %lu %lu %lu %lu %lu %lu %lu " 160 "%d %d %d " 161 "%lu %lu %lu %lu %" PRIu64 " " 162 "%lu %lu %lu " 163 "%u %u " 164 "%u %u %u %u " 165 "%lu %lu %lu %d %d\n", 166 167 p->p_pid, 168 p->p_comm, 169 "0IR3SZD"[(p->p_stat > 6) ? 0 : (int)p->p_stat], 170 p->p_pptr->p_pid, 171 172 p->p_pgid, 173 p->p_session->s_sid, 174 tty ? tty->t_dev : 0, 175 (tty && tty->t_pgrp) ? tty->t_pgrp->pg_id : 0, 176 177 p->p_flag, 178 179 ru->ru_minflt, 180 cru->ru_minflt, 181 ru->ru_majflt, 182 cru->ru_majflt, 183 ru->ru_utime.tv_sec, 184 ru->ru_stime.tv_sec, 185 cru->ru_utime.tv_sec, 186 cru->ru_stime.tv_sec, 187 188 p->p_nice, /* XXX: priority */ 189 p->p_nice, 190 0, 191 192 p->p_rtime.tv_sec, 193 p->p_stats->p_start.tv_sec, 194 ru->ru_ixrss + ru->ru_idrss + ru->ru_isrss, 195 ru->ru_maxrss, 196 p->p_rlimit[RLIMIT_RSS].rlim_cur, 197 198 stext, /* start code */ 199 etext, /* end code */ 200 sstack, /* mm start stack */ 201 0, /* XXX: pc */ 202 0, /* XXX: sp */ 203 p->p_sigctx.ps_siglist.__bits[0], /* pending */ 204 p->p_sigctx.ps_sigmask.__bits[0], /* blocked */ 205 p->p_sigctx.ps_sigignore.__bits[0], /* ignored */ 206 p->p_sigctx.ps_sigcatch.__bits[0], /* caught */ 207 208 (unsigned long)(intptr_t)l->l_wchan, 209 ru->ru_nvcsw, 210 ru->ru_nivcsw, 211 p->p_exitsig, 212 0); /* XXX: processor */ 213 214 if (len == 0) 215 return 0; 216 217 len -= uio->uio_offset; 218 cp = buf + uio->uio_offset; 219 len = imin(len, uio->uio_resid); 220 if (len <= 0) 221 error = 0; 222 else 223 error = uiomove(cp, len, uio); 224 return error; 225 } 226 227 int 228 procfs_docpuinfo(struct proc *curp, struct proc *p, struct pfsnode *pfs, 229 struct uio *uio) 230 { 231 char buf[512], *cp; 232 int len, error; 233 234 len = sizeof buf; 235 if (procfs_getcpuinfstr(buf, &len) < 0) 236 return EIO; 237 238 if (len == 0) 239 return 0; 240 241 len -= uio->uio_offset; 242 cp = buf + uio->uio_offset; 243 len = imin(len, uio->uio_resid); 244 if (len <= 0) 245 error = 0; 246 else 247 error = uiomove(cp, len, uio); 248 return error; 249 } 250 251 int 252 procfs_douptime(struct proc *curp, struct proc *p, struct pfsnode *pfs, 253 struct uio *uio) 254 { 255 char buf[512], *cp; 256 int len, error; 257 struct timeval runtime; 258 u_int64_t idle; 259 260 timersub(&curcpu()->ci_schedstate.spc_runtime, &boottime, &runtime); 261 idle = curcpu()->ci_schedstate.spc_cp_time[CP_IDLE]; 262 len = sprintf(buf, "%lu.%02lu %" PRIu64 ".%02" PRIu64 "\n", 263 runtime.tv_sec, runtime.tv_usec / 10000, 264 idle / hz, (((idle % hz) * 100) / hz) % 100); 265 266 if (len == 0) 267 return 0; 268 269 len -= uio->uio_offset; 270 cp = buf + uio->uio_offset; 271 len = imin(len, uio->uio_resid); 272 if (len <= 0) 273 error = 0; 274 else 275 error = uiomove(cp, len, uio); 276 return error; 277 } 278