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 #include "xlat/resources.h"
  37
  38 static const char *
  39 sprint_rlim64(uint64_t lim)
  40 {
  41         static char buf[sizeof(uint64_t)*3 + sizeof("*1024")];
  42
  43         if (lim == UINT64_MAX)
  44                 return "RLIM64_INFINITY";
  45
  46         if (lim > 1024 && lim % 1024 == 0)
  47                 sprintf(buf, "%" PRIu64 "*1024", lim / 1024);
  48         else
  49                 sprintf(buf, "%" PRIu64, lim);
  50         return buf;
  51 }
  52
  53 static void
  54 print_rlimit64(struct tcb *tcp, unsigned long addr)
  55 {
  56         struct rlimit_64 {
  57                 uint64_t rlim_cur;
  58                 uint64_t rlim_max;
  59         } rlim;
  60
  61         if (umove(tcp, addr, &rlim) < 0)
  62                 tprintf("%#lx", addr);
  63         else {
  64                 tprintf("{rlim_cur=%s,", sprint_rlim64(rlim.rlim_cur));
  65                 tprintf(" rlim_max=%s}", sprint_rlim64(rlim.rlim_max));
  66         }
  67 }
  68
  69 static void
  70 decode_rlimit64(struct tcb *tcp, unsigned long addr)
  71 {
  72         if (!addr)
  73                 tprints("NULL");
  74         else if (!verbose(tcp) ||
  75                  (exiting(tcp) && syserror(tcp)))
  76                 tprintf("%#lx", addr);
  77         else
  78                 print_rlimit64(tcp, addr);
  79 }
  80
  81 #if !defined(current_wordsize) || current_wordsize == 4
  82
  83 static const char *
  84 sprint_rlim32(uint32_t lim)
  85 {
  86         static char buf[sizeof(uint32_t)*3 + sizeof("*1024")];
  87
  88         if (lim == UINT32_MAX)
  89                 return "RLIM_INFINITY";
  90
  91         if (lim > 1024 && lim % 1024 == 0)
  92                 sprintf(buf, "%" PRIu32 "*1024", lim / 1024);
  93         else
  94                 sprintf(buf, "%" PRIu32, lim);
  95         return buf;
  96 }
  97
  98 static void
  99 print_rlimit32(struct tcb *tcp, unsigned long addr)
 100 {
 101         struct rlimit_32 {
 102                 uint32_t rlim_cur;
 103                 uint32_t rlim_max;
 104         } rlim;
 105
 106         if (umove(tcp, addr, &rlim) < 0)
 107                 tprintf("%#lx", addr);
 108         else {
 109                 tprintf("{rlim_cur=%s,", sprint_rlim32(rlim.rlim_cur));
 110                 tprintf(" rlim_max=%s}", sprint_rlim32(rlim.rlim_max));
 111         }
 112 }
 113
 114 static void
 115 decode_rlimit(struct tcb *tcp, unsigned long addr)
 116 {
 117         if (!addr)
 118                 tprints("NULL");
 119         else if (!verbose(tcp) || (exiting(tcp) && syserror(tcp)))
 120                 tprintf("%#lx", addr);
 121         else {
 122 # if defined(X86_64) || defined(X32)
 123                 /*
 124                  * i386 is the only personality on X86_64 and X32
 125                  * with 32-bit rlim_t.
 126                  * When current_personality is X32, current_wordsize
 127                  * equals to 4 but rlim_t is 64-bit.
 128                  */
 129                 if (current_personality == 1)
 130 # else
 131                 if (current_wordsize == 4)
 132 # endif
 133                         print_rlimit32(tcp, addr);
 134                 else
 135                         print_rlimit64(tcp, addr);
 136         }
 137 }
 138
 139 #else /* defined(current_wordsize) && current_wordsize != 4 */
 140
 141 # define decode_rlimit decode_rlimit64
 142
 143 #endif
 144
 145 SYS_FUNC(getrlimit)
 146 {
 147         if (entering(tcp)) {
 148                 printxval(resources, tcp->u_arg[0], "RLIMIT_???");
 149                 tprints(", ");
 150         }
 151         else {
 152                 decode_rlimit(tcp, tcp->u_arg[1]);
 153         }
 154         return 0;
 155 }
 156
 157 SYS_FUNC(setrlimit)
 158 {
 159         if (entering(tcp)) {
 160                 printxval(resources, tcp->u_arg[0], "RLIMIT_???");
 161                 tprints(", ");
 162                 decode_rlimit(tcp, tcp->u_arg[1]);
 163         }
 164         return 0;
 165 }
 166
 167 SYS_FUNC(prlimit64)
 168 {
 169         if (entering(tcp)) {
 170                 tprintf("%ld, ", tcp->u_arg[0]);
 171                 printxval(resources, tcp->u_arg[1], "RLIMIT_???");
 172                 tprints(", ");
 173                 decode_rlimit64(tcp, tcp->u_arg[2]);
 174                 tprints(", ");
 175         } else {
 176                 decode_rlimit64(tcp, tcp->u_arg[3]);
 177         }
 178         return 0;
 179 }
 180
 181 #include "xlat/usagewho.h"
 182
 183 #ifdef ALPHA
 184 void
 185 printrusage32(struct tcb *tcp, long addr)
 186 {
 187         struct timeval32 {
 188                 unsigned tv_sec;
 189                 unsigned tv_usec;
 190         };
 191         struct rusage32 {
 192                 struct timeval32 ru_utime;      /* user time used */
 193                 struct timeval32 ru_stime;      /* system time used */
 194                 long    ru_maxrss;              /* maximum resident set size */
 195                 long    ru_ixrss;               /* integral shared memory size */
 196                 long    ru_idrss;               /* integral unshared data size */
 197                 long    ru_isrss;               /* integral unshared stack size */
 198                 long    ru_minflt;              /* page reclaims */
 199                 long    ru_majflt;              /* page faults */
 200                 long    ru_nswap;               /* swaps */
 201                 long    ru_inblock;             /* block input operations */
 202                 long    ru_oublock;             /* block output operations */
 203                 long    ru_msgsnd;              /* messages sent */
 204                 long    ru_msgrcv;              /* messages received */
 205                 long    ru_nsignals;            /* signals received */
 206                 long    ru_nvcsw;               /* voluntary context switches */
 207                 long    ru_nivcsw;              /* involuntary " */
 208         } ru;
 209
 210         if (!addr)
 211                 tprints("NULL");
 212         else if (syserror(tcp) || !verbose(tcp))
 213                 tprintf("%#lx", addr);
 214         else if (umove(tcp, addr, &ru) < 0)
 215                 tprints("{...}");
 216         else if (!abbrev(tcp)) {
 217                 tprintf("{ru_utime={%lu, %lu}, ru_stime={%lu, %lu}, ",
 218                         (long) ru.ru_utime.tv_sec, (long) ru.ru_utime.tv_usec,
 219                         (long) ru.ru_stime.tv_sec, (long) ru.ru_stime.tv_usec);
 220                 tprintf("ru_maxrss=%lu, ru_ixrss=%lu, ",
 221                         ru.ru_maxrss, ru.ru_ixrss);
 222                 tprintf("ru_idrss=%lu, ru_isrss=%lu, ",
 223                         ru.ru_idrss, ru.ru_isrss);
 224                 tprintf("ru_minflt=%lu, ru_majflt=%lu, ru_nswap=%lu, ",
 225                         ru.ru_minflt, ru.ru_majflt, ru.ru_nswap);
 226                 tprintf("ru_inblock=%lu, ru_oublock=%lu, ",
 227                         ru.ru_inblock, ru.ru_oublock);
 228                 tprintf("ru_msgsnd=%lu, ru_msgrcv=%lu, ",
 229                         ru.ru_msgsnd, ru.ru_msgrcv);
 230                 tprintf("ru_nsignals=%lu, ru_nvcsw=%lu, ru_nivcsw=%lu}",
 231                         ru.ru_nsignals, ru.ru_nvcsw, ru.ru_nivcsw);
 232         }
 233         else {
 234                 tprintf("{ru_utime={%lu, %lu}, ru_stime={%lu, %lu}, ...}",
 235                         (long) ru.ru_utime.tv_sec, (long) ru.ru_utime.tv_usec,
 236                         (long) ru.ru_stime.tv_sec, (long) ru.ru_stime.tv_usec);
 237         }
 238 }
 239 #endif
 240
 241 void
 242 printrusage(struct tcb *tcp, long addr)
 243 {
 244         struct rusage ru;
 245
 246         if (!addr)
 247                 tprints("NULL");
 248         else if (syserror(tcp) || !verbose(tcp))
 249                 tprintf("%#lx", addr);
 250         else if (umove(tcp, addr, &ru) < 0)
 251                 tprints("{...}");
 252         else if (!abbrev(tcp)) {
 253                 tprintf("{ru_utime={%lu, %lu}, ru_stime={%lu, %lu}, ",
 254                         (long) ru.ru_utime.tv_sec, (long) ru.ru_utime.tv_usec,
 255                         (long) ru.ru_stime.tv_sec, (long) ru.ru_stime.tv_usec);
 256                 tprintf("ru_maxrss=%lu, ru_ixrss=%lu, ",
 257                         ru.ru_maxrss, ru.ru_ixrss);
 258                 tprintf("ru_idrss=%lu, ru_isrss=%lu, ",
 259                         ru.ru_idrss, ru.ru_isrss);
 260                 tprintf("ru_minflt=%lu, ru_majflt=%lu, ru_nswap=%lu, ",
 261                         ru.ru_minflt, ru.ru_majflt, ru.ru_nswap);
 262                 tprintf("ru_inblock=%lu, ru_oublock=%lu, ",
 263                         ru.ru_inblock, ru.ru_oublock);
 264                 tprintf("ru_msgsnd=%lu, ru_msgrcv=%lu, ",
 265                         ru.ru_msgsnd, ru.ru_msgrcv);
 266                 tprintf("ru_nsignals=%lu, ru_nvcsw=%lu, ru_nivcsw=%lu}",
 267                         ru.ru_nsignals, ru.ru_nvcsw, ru.ru_nivcsw);
 268         }
 269         else {
 270                 tprintf("{ru_utime={%lu, %lu}, ru_stime={%lu, %lu}, ...}",
 271                         (long) ru.ru_utime.tv_sec, (long) ru.ru_utime.tv_usec,
 272                         (long) ru.ru_stime.tv_sec, (long) ru.ru_stime.tv_usec);
 273         }
 274 }
 275
 276 SYS_FUNC(getrusage)
 277 {
 278         if (entering(tcp)) {
 279                 printxval(usagewho, tcp->u_arg[0], "RUSAGE_???");
 280                 tprints(", ");
 281         }
 282         else
 283                 printrusage(tcp, tcp->u_arg[1]);
 284         return 0;
 285 }
 286
 287 #ifdef ALPHA
 288 SYS_FUNC(osf_getrusage)
 289 {
 290         if (entering(tcp)) {
 291                 printxval(usagewho, tcp->u_arg[0], "RUSAGE_???");
 292                 tprints(", ");
 293         }
 294         else
 295                 printrusage32(tcp, tcp->u_arg[1]);
 296         return 0;
 297 }
 298 #endif /* ALPHA */
 299
 300 #include "xlat/priorities.h"
 301
 302 SYS_FUNC(getpriority)
 303 {
 304         if (entering(tcp)) {
 305                 printxval(priorities, tcp->u_arg[0], "PRIO_???");
 306                 tprintf(", %lu", tcp->u_arg[1]);
 307         }
 308         return 0;
 309 }
 310
 311 SYS_FUNC(setpriority)
 312 {
 313         if (entering(tcp)) {
 314                 printxval(priorities, tcp->u_arg[0], "PRIO_???");
 315                 tprintf(", %lu, %ld", tcp->u_arg[1], tcp->u_arg[2]);
 316         }
 317         return 0;
 318 }
 319
 320 SYS_FUNC(times)
 321 {
 322         struct tms tbuf;
 323
 324         if (exiting(tcp)) {
 325                 if (tcp->u_arg[0] == 0)
 326                         tprints("NULL");
 327                 else if (syserror(tcp))
 328                         tprintf("%#lx", tcp->u_arg[0]);
 329                 else if (umove(tcp, tcp->u_arg[0], &tbuf) < 0)
 330                         tprints("{...}");
 331                 else {
 332                         tprintf("{tms_utime=%llu, tms_stime=%llu, ",
 333                                 (unsigned long long) tbuf.tms_utime,
 334                                 (unsigned long long) tbuf.tms_stime);
 335                         tprintf("tms_cutime=%llu, tms_cstime=%llu}",
 336                                 (unsigned long long) tbuf.tms_cutime,
 337                                 (unsigned long long) tbuf.tms_cstime);
 338                 }
 339         }
 340         return 0;
 341 }