granicus.if.org Git - strace/blob - resource.c

   1 /*
   2  * Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
   3  * Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
   4  * Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
   5  * Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl>
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. The name of the author may not be used to endorse or promote products
  17  *    derived from this software without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  20  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  21  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  22  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  23  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  24  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  28  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31 #include "defs.h"
  32 #include <sys/resource.h>
  33 #include <sys/times.h>
  34 #include <linux/kernel.h>
  35
  36 static const struct xlat resources[] = {
  37 #ifdef RLIMIT_AS
  38         XLAT(RLIMIT_AS),
  39 #endif
  40 #ifdef RLIMIT_CORE
  41         XLAT(RLIMIT_CORE),
  42 #endif
  43 #ifdef RLIMIT_CPU
  44         XLAT(RLIMIT_CPU),
  45 #endif
  46 #ifdef RLIMIT_DATA
  47         XLAT(RLIMIT_DATA),
  48 #endif
  49 #ifdef RLIMIT_FSIZE
  50         XLAT(RLIMIT_FSIZE),
  51 #endif
  52 #ifdef RLIMIT_LOCKS
  53         XLAT(RLIMIT_LOCKS),
  54 #endif
  55 #ifdef RLIMIT_MEMLOCK
  56         XLAT(RLIMIT_MEMLOCK),
  57 #endif
  58 #ifdef RLIMIT_MSGQUEUE
  59         XLAT(RLIMIT_MSGQUEUE),
  60 #endif
  61 #ifdef RLIMIT_NICE
  62         XLAT(RLIMIT_NICE),
  63 #endif
  64 #ifdef RLIMIT_NOFILE
  65         XLAT(RLIMIT_NOFILE),
  66 #endif
  67 #ifdef RLIMIT_NPROC
  68         XLAT(RLIMIT_NPROC),
  69 #endif
  70 #ifdef RLIMIT_RSS
  71         XLAT(RLIMIT_RSS),
  72 #endif
  73 #ifdef RLIMIT_RTPRIO
  74         XLAT(RLIMIT_RTPRIO),
  75 #endif
  76 #ifdef RLIMIT_RTTIME
  77         XLAT(RLIMIT_RTTIME),
  78 #endif
  79 #ifdef RLIMIT_SIGPENDING
  80         XLAT(RLIMIT_SIGPENDING),
  81 #endif
  82 #ifdef RLIMIT_STACK
  83         XLAT(RLIMIT_STACK),
  84 #endif
  85 #ifdef RLIMIT_VMEM
  86         XLAT(RLIMIT_VMEM),
  87 #endif
  88         XLAT_END
  89 };
  90
  91 #if !(SIZEOF_RLIM_T == 4 || SIZEOF_RLIM_T == 8)
  92 # error "Unsupported SIZEOF_RLIM_T value"
  93 #endif
  94
  95 static const char *
  96 sprint_rlim64(uint64_t lim)
  97 {
  98         static char buf[sizeof(uint64_t)*3 + sizeof("*1024")];
  99
 100         if (lim == UINT64_MAX)
 101                 return "RLIM64_INFINITY";
 102
 103         if (lim > 1024 && lim % 1024 == 0)
 104                 sprintf(buf, "%" PRIu64 "*1024", lim / 1024);
 105         else
 106                 sprintf(buf, "%" PRIu64, lim);
 107         return buf;
 108 }
 109
 110 static void
 111 print_rlimit64(struct tcb *tcp, unsigned long addr)
 112 {
 113         struct rlimit_64 {
 114                 uint64_t rlim_cur;
 115                 uint64_t rlim_max;
 116         } rlim;
 117
 118         if (umove(tcp, addr, &rlim) < 0)
 119                 tprintf("%#lx", addr);
 120         else {
 121                 tprintf("{rlim_cur=%s,", sprint_rlim64(rlim.rlim_cur));
 122                 tprintf(" rlim_max=%s}", sprint_rlim64(rlim.rlim_max));
 123         }
 124 }
 125
 126 static void
 127 decode_rlimit64(struct tcb *tcp, unsigned long addr)
 128 {
 129         if (!addr)
 130                 tprints("NULL");
 131         else if (!verbose(tcp) ||
 132                  (exiting(tcp) && syserror(tcp)))
 133                 tprintf("%#lx", addr);
 134         else
 135                 print_rlimit64(tcp, addr);
 136 }
 137
 138 #if SIZEOF_RLIM_T == 4 || SUPPORTED_PERSONALITIES > 1
 139
 140 static const char *
 141 sprint_rlim32(uint32_t lim)
 142 {
 143         static char buf[sizeof(uint32_t)*3 + sizeof("*1024")];
 144
 145         if (lim == UINT32_MAX)
 146                 return "RLIM_INFINITY";
 147
 148         if (lim > 1024 && lim % 1024 == 0)
 149                 sprintf(buf, "%" PRIu32 "*1024", lim / 1024);
 150         else
 151                 sprintf(buf, "%" PRIu32, lim);
 152         return buf;
 153 }
 154
 155 static void
 156 print_rlimit32(struct tcb *tcp, unsigned long addr)
 157 {
 158         struct rlimit_32 {
 159                 uint32_t rlim_cur;
 160                 uint32_t rlim_max;
 161         } rlim;
 162
 163         if (umove(tcp, addr, &rlim) < 0)
 164                 tprintf("%#lx", addr);
 165         else {
 166                 tprintf("{rlim_cur=%s,", sprint_rlim32(rlim.rlim_cur));
 167                 tprintf(" rlim_max=%s}", sprint_rlim32(rlim.rlim_max));
 168         }
 169 }
 170
 171 static void
 172 decode_rlimit(struct tcb *tcp, unsigned long addr)
 173 {
 174         if (!addr)
 175                 tprints("NULL");
 176         else if (!verbose(tcp) || (exiting(tcp) && syserror(tcp)))
 177                 tprintf("%#lx", addr);
 178         else {
 179 # if SIZEOF_RLIM_T == 4
 180                 print_rlimit32(tcp, addr);
 181 # else
 182                 if (current_wordsize == 4)
 183                         print_rlimit32(tcp, addr);
 184                 else
 185                         print_rlimit64(tcp, addr);
 186 # endif
 187         }
 188 }
 189
 190 #else /* SIZEOF_RLIM_T == 8 && SUPPORTED_PERSONALITIES == 1 */
 191
 192 # define decode_rlimit decode_rlimit64
 193
 194 #endif /* SIZEOF_RLIM_T == 4 || SUPPORTED_PERSONALITIES > 1 */
 195
 196 int
 197 sys_getrlimit(struct tcb *tcp)
 198 {
 199         if (entering(tcp)) {
 200                 printxval(resources, tcp->u_arg[0], "RLIMIT_???");
 201                 tprints(", ");
 202         }
 203         else {
 204                 decode_rlimit(tcp, tcp->u_arg[1]);
 205         }
 206         return 0;
 207 }
 208
 209 int
 210 sys_setrlimit(struct tcb *tcp)
 211 {
 212         if (entering(tcp)) {
 213                 printxval(resources, tcp->u_arg[0], "RLIMIT_???");
 214                 tprints(", ");
 215                 decode_rlimit(tcp, tcp->u_arg[1]);
 216         }
 217         return 0;
 218 }
 219
 220 int
 221 sys_prlimit64(struct tcb *tcp)
 222 {
 223         if (entering(tcp)) {
 224                 tprintf("%ld, ", tcp->u_arg[0]);
 225                 printxval(resources, tcp->u_arg[1], "RLIMIT_???");
 226                 tprints(", ");
 227                 decode_rlimit64(tcp, tcp->u_arg[2]);
 228                 tprints(", ");
 229         } else {
 230                 decode_rlimit64(tcp, tcp->u_arg[3]);
 231         }
 232         return 0;
 233 }
 234
 235 static const struct xlat usagewho[] = {
 236         XLAT(RUSAGE_SELF),
 237         XLAT(RUSAGE_CHILDREN),
 238 #ifdef RUSAGE_BOTH
 239         XLAT(RUSAGE_BOTH),
 240 #endif
 241         XLAT_END
 242 };
 243
 244 #ifdef ALPHA
 245 void
 246 printrusage32(struct tcb *tcp, long addr)
 247 {
 248         struct timeval32 {
 249                 unsigned tv_sec;
 250                 unsigned tv_usec;
 251         };
 252         struct rusage32 {
 253                 struct timeval32 ru_utime;      /* user time used */
 254                 struct timeval32 ru_stime;      /* system time used */
 255                 long    ru_maxrss;              /* maximum resident set size */
 256                 long    ru_ixrss;               /* integral shared memory size */
 257                 long    ru_idrss;               /* integral unshared data size */
 258                 long    ru_isrss;               /* integral unshared stack size */
 259                 long    ru_minflt;              /* page reclaims */
 260                 long    ru_majflt;              /* page faults */
 261                 long    ru_nswap;               /* swaps */
 262                 long    ru_inblock;             /* block input operations */
 263                 long    ru_oublock;             /* block output operations */
 264                 long    ru_msgsnd;              /* messages sent */
 265                 long    ru_msgrcv;              /* messages received */
 266                 long    ru_nsignals;            /* signals received */
 267                 long    ru_nvcsw;               /* voluntary context switches */
 268                 long    ru_nivcsw;              /* involuntary " */
 269         } ru;
 270
 271         if (!addr)
 272                 tprints("NULL");
 273         else if (syserror(tcp) || !verbose(tcp))
 274                 tprintf("%#lx", addr);
 275         else if (umove(tcp, addr, &ru) < 0)
 276                 tprints("{...}");
 277         else if (!abbrev(tcp)) {
 278                 tprintf("{ru_utime={%lu, %lu}, ru_stime={%lu, %lu}, ",
 279                         (long) ru.ru_utime.tv_sec, (long) ru.ru_utime.tv_usec,
 280                         (long) ru.ru_stime.tv_sec, (long) ru.ru_stime.tv_usec);
 281                 tprintf("ru_maxrss=%lu, ru_ixrss=%lu, ",
 282                         ru.ru_maxrss, ru.ru_ixrss);
 283                 tprintf("ru_idrss=%lu, ru_isrss=%lu, ",
 284                         ru.ru_idrss, ru.ru_isrss);
 285                 tprintf("ru_minflt=%lu, ru_majflt=%lu, ru_nswap=%lu, ",
 286                         ru.ru_minflt, ru.ru_majflt, ru.ru_nswap);
 287                 tprintf("ru_inblock=%lu, ru_oublock=%lu, ",
 288                         ru.ru_inblock, ru.ru_oublock);
 289                 tprintf("ru_msgsnd=%lu, ru_msgrcv=%lu, ",
 290                         ru.ru_msgsnd, ru.ru_msgrcv);
 291                 tprintf("ru_nsignals=%lu, ru_nvcsw=%lu, ru_nivcsw=%lu}",
 292                         ru.ru_nsignals, ru.ru_nvcsw, ru.ru_nivcsw);
 293         }
 294         else {
 295                 tprintf("{ru_utime={%lu, %lu}, ru_stime={%lu, %lu}, ...}",
 296                         (long) ru.ru_utime.tv_sec, (long) ru.ru_utime.tv_usec,
 297                         (long) ru.ru_stime.tv_sec, (long) ru.ru_stime.tv_usec);
 298         }
 299 }
 300 #endif
 301
 302 void
 303 printrusage(struct tcb *tcp, long addr)
 304 {
 305         struct rusage ru;
 306
 307         if (!addr)
 308                 tprints("NULL");
 309         else if (syserror(tcp) || !verbose(tcp))
 310                 tprintf("%#lx", addr);
 311         else if (umove(tcp, addr, &ru) < 0)
 312                 tprints("{...}");
 313         else if (!abbrev(tcp)) {
 314                 tprintf("{ru_utime={%lu, %lu}, ru_stime={%lu, %lu}, ",
 315                         (long) ru.ru_utime.tv_sec, (long) ru.ru_utime.tv_usec,
 316                         (long) ru.ru_stime.tv_sec, (long) ru.ru_stime.tv_usec);
 317                 tprintf("ru_maxrss=%lu, ru_ixrss=%lu, ",
 318                         ru.ru_maxrss, ru.ru_ixrss);
 319                 tprintf("ru_idrss=%lu, ru_isrss=%lu, ",
 320                         ru.ru_idrss, ru.ru_isrss);
 321                 tprintf("ru_minflt=%lu, ru_majflt=%lu, ru_nswap=%lu, ",
 322                         ru.ru_minflt, ru.ru_majflt, ru.ru_nswap);
 323                 tprintf("ru_inblock=%lu, ru_oublock=%lu, ",
 324                         ru.ru_inblock, ru.ru_oublock);
 325                 tprintf("ru_msgsnd=%lu, ru_msgrcv=%lu, ",
 326                         ru.ru_msgsnd, ru.ru_msgrcv);
 327                 tprintf("ru_nsignals=%lu, ru_nvcsw=%lu, ru_nivcsw=%lu}",
 328                         ru.ru_nsignals, ru.ru_nvcsw, ru.ru_nivcsw);
 329         }
 330         else {
 331                 tprintf("{ru_utime={%lu, %lu}, ru_stime={%lu, %lu}, ...}",
 332                         (long) ru.ru_utime.tv_sec, (long) ru.ru_utime.tv_usec,
 333                         (long) ru.ru_stime.tv_sec, (long) ru.ru_stime.tv_usec);
 334         }
 335 }
 336
 337 int
 338 sys_getrusage(struct tcb *tcp)
 339 {
 340         if (entering(tcp)) {
 341                 printxval(usagewho, tcp->u_arg[0], "RUSAGE_???");
 342                 tprints(", ");
 343         }
 344         else
 345                 printrusage(tcp, tcp->u_arg[1]);
 346         return 0;
 347 }
 348
 349 #ifdef ALPHA
 350 int
 351 sys_osf_getrusage(struct tcb *tcp)
 352 {
 353         if (entering(tcp)) {
 354                 printxval(usagewho, tcp->u_arg[0], "RUSAGE_???");
 355                 tprints(", ");
 356         }
 357         else
 358                 printrusage32(tcp, tcp->u_arg[1]);
 359         return 0;
 360 }
 361 #endif /* ALPHA */
 362
 363 int
 364 sys_sysinfo(struct tcb *tcp)
 365 {
 366         struct sysinfo si;
 367
 368         if (exiting(tcp)) {
 369                 if (syserror(tcp) || !verbose(tcp))
 370                         tprintf("%#lx", tcp->u_arg[0]);
 371                 else if (umove(tcp, tcp->u_arg[0], &si) < 0)
 372                         tprints("{...}");
 373                 else {
 374                         tprintf("{uptime=%lu, loads=[%lu, %lu, %lu] ",
 375                                 (long) si.uptime, (long) si.loads[0],
 376                                 (long) si.loads[1], (long) si.loads[2]);
 377                         tprintf("totalram=%lu, freeram=%lu, ",
 378                                 (long) si.totalram, (long) si.freeram);
 379                         tprintf("sharedram=%lu, bufferram=%lu} ",
 380                                 (long) si.sharedram, (long) si.bufferram);
 381                         tprintf("totalswap=%lu, freeswap=%lu, procs=%u}",
 382                                 (long) si.totalswap, (long) si.freeswap,
 383                                 (unsigned)si.procs);
 384                 }
 385         }
 386         return 0;
 387 }
 388
 389 static const struct xlat priorities[] = {
 390         XLAT(PRIO_PROCESS),
 391         XLAT(PRIO_PGRP),
 392         XLAT(PRIO_USER),
 393         XLAT_END
 394 };
 395
 396 int
 397 sys_getpriority(struct tcb *tcp)
 398 {
 399         if (entering(tcp)) {
 400                 printxval(priorities, tcp->u_arg[0], "PRIO_???");
 401                 tprintf(", %lu", tcp->u_arg[1]);
 402         }
 403         return 0;
 404 }
 405
 406 int
 407 sys_setpriority(struct tcb *tcp)
 408 {
 409         if (entering(tcp)) {
 410                 printxval(priorities, tcp->u_arg[0], "PRIO_???");
 411                 tprintf(", %lu, %ld", tcp->u_arg[1], tcp->u_arg[2]);
 412         }
 413         return 0;
 414 }
 415
 416 int
 417 sys_times(struct tcb *tcp)
 418 {
 419         struct tms tbuf;
 420
 421         if (exiting(tcp)) {
 422                 if (tcp->u_arg[0] == 0)
 423                         tprints("NULL");
 424                 else if (syserror(tcp))
 425                         tprintf("%#lx", tcp->u_arg[0]);
 426                 else if (umove(tcp, tcp->u_arg[0], &tbuf) < 0)
 427                         tprints("{...}");
 428                 else {
 429                         tprintf("{tms_utime=%llu, tms_stime=%llu, ",
 430                                 (unsigned long long) tbuf.tms_utime,
 431                                 (unsigned long long) tbuf.tms_stime);
 432                         tprintf("tms_cutime=%llu, tms_cstime=%llu}",
 433                                 (unsigned long long) tbuf.tms_cutime,
 434                                 (unsigned long long) tbuf.tms_cstime);
 435                 }
 436         }
 437         return 0;
 438 }