granicus.if.org Git - strace/blob - mem.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  * Copyright (c) 2000 PocketPenguins Inc.  Linux for Hitachi SuperH
   7  *                    port by Greg Banks <gbanks@pocketpenguins.com>
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  * 3. The name of the author may not be used to endorse or promote products
  19  *    derived from this software without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  *
  32  *      $Id$
  33  */
  34
  35 #include "defs.h"
  36
  37 #ifdef LINUX
  38 #include <asm/mman.h>
  39 #endif
  40 #include <sys/mman.h>
  41
  42 #if defined(LINUX) && defined(I386)
  43 #include <asm/ldt.h>
  44 # ifdef HAVE_STRUCT_USER_DESC
  45 #  define modify_ldt_ldt_s user_desc
  46 # endif
  47 #endif
  48 #if defined(LINUX) && defined(SH64)
  49 #include <asm/page.h>       /* for PAGE_SHIFT */
  50 #endif
  51
  52 #ifdef HAVE_LONG_LONG_OFF_T
  53 /*
  54  * Ugly hacks for systems that have a long long off_t
  55  */
  56 #define sys_mmap64      sys_mmap
  57 #endif
  58
  59 int
  60 sys_brk(tcp)
  61 struct tcb *tcp;
  62 {
  63         if (entering(tcp)) {
  64                 tprintf("%#lx", tcp->u_arg[0]);
  65         }
  66 #ifdef LINUX
  67         return RVAL_HEX;
  68 #else
  69         return 0;
  70 #endif
  71 }
  72
  73 #if defined(FREEBSD) || defined(SUNOS4)
  74 int
  75 sys_sbrk(tcp)
  76 struct tcb *tcp;
  77 {
  78         if (entering(tcp)) {
  79                 tprintf("%lu", tcp->u_arg[0]);
  80         }
  81         return RVAL_HEX;
  82 }
  83 #endif /* FREEBSD || SUNOS4 */
  84
  85 static const struct xlat mmap_prot[] = {
  86         { PROT_NONE,    "PROT_NONE",    },
  87         { PROT_READ,    "PROT_READ"     },
  88         { PROT_WRITE,   "PROT_WRITE"    },
  89         { PROT_EXEC,    "PROT_EXEC"     },
  90 #ifdef PROT_SEM
  91         { PROT_SEM,     "PROT_SEM"      },
  92 #endif
  93 #ifdef PROT_GROWSDOWN
  94         { PROT_GROWSDOWN,"PROT_GROWSDOWN"},
  95 #endif
  96 #ifdef PROT_GROWSUP
  97         { PROT_GROWSUP, "PROT_GROWSUP"  },
  98 #endif
  99 #ifdef PROT_SAO
 100         { PROT_SAO,     "PROT_SAO"      },
 101 #endif
 102         { 0,            NULL            },
 103 };
 104
 105 static const struct xlat mmap_flags[] = {
 106         { MAP_SHARED,   "MAP_SHARED"    },
 107         { MAP_PRIVATE,  "MAP_PRIVATE"   },
 108         { MAP_FIXED,    "MAP_FIXED"     },
 109 #ifdef MAP_ANONYMOUS
 110         { MAP_ANONYMOUS,"MAP_ANONYMOUS" },
 111 #endif
 112 #ifdef MAP_32BIT
 113         { MAP_32BIT,    "MAP_32BIT"     },
 114 #endif
 115 #ifdef MAP_RENAME
 116         { MAP_RENAME,   "MAP_RENAME"    },
 117 #endif
 118 #ifdef MAP_NORESERVE
 119         { MAP_NORESERVE,"MAP_NORESERVE" },
 120 #endif
 121 #ifdef MAP_POPULATE
 122         { MAP_POPULATE, "MAP_POPULATE" },
 123 #endif
 124 #ifdef MAP_NONBLOCK
 125         { MAP_NONBLOCK, "MAP_NONBLOCK" },
 126 #endif
 127         /*
 128          * XXX - this was introduced in SunOS 4.x to distinguish between
 129          * the old pre-4.x "mmap()", which:
 130          *
 131          *      only let you map devices with an "mmap" routine (e.g.,
 132          *      frame buffers) in;
 133          *
 134          *      required you to specify the mapping address;
 135          *
 136          *      returned 0 on success and -1 on failure;
 137          *
 138          * memory and which, and the 4.x "mmap()" which:
 139          *
 140          *      can map plain files;
 141          *
 142          *      can be asked to pick where to map the file;
 143          *
 144          *      returns the address where it mapped the file on success
 145          *      and -1 on failure.
 146          *
 147          * It's not actually used in source code that calls "mmap()"; the
 148          * "mmap()" routine adds it for you.
 149          *
 150          * It'd be nice to come up with some way of eliminating it from
 151          * the flags, e.g. reporting calls *without* it as "old_mmap()"
 152          * and calls with it as "mmap()".
 153          */
 154 #ifdef _MAP_NEW
 155         { _MAP_NEW,     "_MAP_NEW"      },
 156 #endif
 157 #ifdef MAP_GROWSDOWN
 158         { MAP_GROWSDOWN,"MAP_GROWSDOWN" },
 159 #endif
 160 #ifdef MAP_DENYWRITE
 161         { MAP_DENYWRITE,"MAP_DENYWRITE" },
 162 #endif
 163 #ifdef MAP_EXECUTABLE
 164         { MAP_EXECUTABLE,"MAP_EXECUTABLE"},
 165 #endif
 166 #ifdef MAP_INHERIT
 167         { MAP_INHERIT,"MAP_INHERIT"     },
 168 #endif
 169 #ifdef MAP_FILE
 170         { MAP_FILE,"MAP_FILE"},
 171 #endif
 172 #ifdef MAP_LOCKED
 173         { MAP_LOCKED,"MAP_LOCKED"},
 174 #endif
 175         /* FreeBSD ones */
 176 #ifdef MAP_ANON
 177         { MAP_ANON,             "MAP_ANON"      },
 178 #endif
 179 #ifdef MAP_HASSEMAPHORE
 180         { MAP_HASSEMAPHORE,     "MAP_HASSEMAPHORE"      },
 181 #endif
 182 #ifdef MAP_STACK
 183         { MAP_STACK,            "MAP_STACK"     },
 184 #endif
 185 #ifdef MAP_NOSYNC
 186         { MAP_NOSYNC,           "MAP_NOSYNC"    },
 187 #endif
 188 #ifdef MAP_NOCORE
 189         { MAP_NOCORE,           "MAP_NOCORE"    },
 190 #endif
 191         { 0,            NULL            },
 192 };
 193
 194 #if !HAVE_LONG_LONG_OFF_T
 195 static
 196 int
 197 print_mmap(tcp,u_arg, offset)
 198 struct tcb *tcp;
 199 long *u_arg;
 200 long long offset;
 201 {
 202         if (entering(tcp)) {
 203                 /* addr */
 204                 if (!u_arg[0])
 205                         tprintf("NULL, ");
 206                 else
 207                         tprintf("%#lx, ", u_arg[0]);
 208                 /* len */
 209                 tprintf("%lu, ", u_arg[1]);
 210                 /* prot */
 211                 printflags(mmap_prot, u_arg[2], "PROT_???");
 212                 tprintf(", ");
 213                 /* flags */
 214 #ifdef MAP_TYPE
 215                 printxval(mmap_flags, u_arg[3] & MAP_TYPE, "MAP_???");
 216                 addflags(mmap_flags, u_arg[3] & ~MAP_TYPE);
 217 #else
 218                 printflags(mmap_flags, u_arg[3], "MAP_???");
 219 #endif
 220                 /* fd (is always int, not long) */
 221                 tprintf(", %d, ", (int)u_arg[4]);
 222                 /* offset */
 223                 tprintf("%#llx", offset);
 224         }
 225         return RVAL_HEX;
 226 }
 227
 228 #ifdef LINUX
 229 int sys_old_mmap(tcp)
 230 struct tcb *tcp;
 231 {
 232         long u_arg[6];
 233
 234 #if     defined(IA64)
 235         int i, v;
 236         /*
 237          *  IA64 processes never call this routine, they only use the
 238          *  new `sys_mmap' interface.  This code converts the integer
 239          *  arguments that the IA32 process pushed onto the stack into
 240          *  longs.
 241          *
 242          *  Note that addresses with bit 31 set will be sign extended.
 243          *  Fortunately, those addresses are not currently being generated
 244          *  for IA32 processes so it's not a problem.
 245          */
 246         for (i = 0; i < 6; i++)
 247                 if (umove(tcp, tcp->u_arg[0] + (i * sizeof(int)), &v) == -1)
 248                         return 0;
 249                 else
 250                         u_arg[i] = v;
 251 #elif defined(SH) || defined(SH64)
 252         /* SH has always passed the args in registers */
 253         int i;
 254         for (i=0; i<6; i++)
 255                 u_arg[i] = tcp->u_arg[i];
 256 #else
 257 # if defined(X86_64)
 258         if (current_personality == 1) {
 259                 int i;
 260                 for (i = 0; i < 6; ++i) {
 261                         unsigned int val;
 262                         if (umove(tcp, tcp->u_arg[0] + i * 4, &val) == -1)
 263                                 return 0;
 264                         u_arg[i] = val;
 265                 }
 266         }
 267         else
 268 # endif
 269         if (umoven(tcp, tcp->u_arg[0], sizeof u_arg, (char *) u_arg) == -1)
 270                 return 0;
 271 #endif  // defined(IA64)
 272         return print_mmap(tcp, u_arg, u_arg[5]);
 273 }
 274 #endif
 275
 276 int
 277 sys_mmap(tcp)
 278 struct tcb *tcp;
 279 {
 280         long long offset = tcp->u_arg[5];
 281
 282 #if defined(LINUX) && defined(SH64)
 283         /*
 284          * Old mmap differs from new mmap in specifying the
 285          * offset in units of bytes rather than pages.  We
 286          * pretend it's in byte units so the user only ever
 287          * sees bytes in the printout.
 288          */
 289         offset <<= PAGE_SHIFT;
 290 #endif
 291 #if defined(LINUX_MIPSN32)
 292         offset = tcp->ext_arg[5];
 293 #endif
 294         return print_mmap(tcp, tcp->u_arg, offset);
 295 }
 296 #endif /* !HAVE_LONG_LONG_OFF_T */
 297
 298 #if _LFS64_LARGEFILE || HAVE_LONG_LONG_OFF_T
 299 int
 300 sys_mmap64(tcp)
 301 struct tcb *tcp;
 302 {
 303 #ifdef linux
 304 #ifdef ALPHA
 305         long *u_arg = tcp->u_arg;
 306 #else /* !ALPHA */
 307         long u_arg[7];
 308 #endif /* !ALPHA */
 309 #else /* !linux */
 310         long *u_arg = tcp->u_arg;
 311 #endif /* !linux */
 312
 313         if (entering(tcp)) {
 314 #ifdef linux
 315 #ifndef ALPHA
 316                 if (umoven(tcp, tcp->u_arg[0], sizeof u_arg,
 317                                 (char *) u_arg) == -1)
 318                         return 0;
 319 #endif /* ALPHA */
 320 #endif /* linux */
 321
 322                 /* addr */
 323                 tprintf("%#lx, ", u_arg[0]);
 324                 /* len */
 325                 tprintf("%lu, ", u_arg[1]);
 326                 /* prot */
 327                 printflags(mmap_prot, u_arg[2], "PROT_???");
 328                 tprintf(", ");
 329                 /* flags */
 330 #ifdef MAP_TYPE
 331                 printxval(mmap_flags, u_arg[3] & MAP_TYPE, "MAP_???");
 332                 addflags(mmap_flags, u_arg[3] & ~MAP_TYPE);
 333 #else
 334                 printflags(mmap_flags, u_arg[3], "MAP_???");
 335 #endif
 336                 /* fd */
 337                 tprintf(", %ld, ", u_arg[4]);
 338                 /* offset */
 339                 printllval(tcp, "%#llx", 5);
 340         }
 341         return RVAL_HEX;
 342 }
 343 #endif
 344
 345
 346 int
 347 sys_munmap(tcp)
 348 struct tcb *tcp;
 349 {
 350         if (entering(tcp)) {
 351                 tprintf("%#lx, %lu",
 352                         tcp->u_arg[0], tcp->u_arg[1]);
 353         }
 354         return 0;
 355 }
 356
 357 int
 358 sys_mprotect(tcp)
 359 struct tcb *tcp;
 360 {
 361         if (entering(tcp)) {
 362                 tprintf("%#lx, %lu, ",
 363                         tcp->u_arg[0], tcp->u_arg[1]);
 364                 printflags(mmap_prot, tcp->u_arg[2], "PROT_???");
 365         }
 366         return 0;
 367 }
 368
 369 #ifdef LINUX
 370
 371 static const struct xlat mremap_flags[] = {
 372         { MREMAP_MAYMOVE,       "MREMAP_MAYMOVE"        },
 373 #ifdef MREMAP_FIXED
 374         { MREMAP_FIXED,         "MREMAP_FIXED"          },
 375 #endif
 376         { 0,                    NULL                    }
 377 };
 378
 379 int
 380 sys_mremap(tcp)
 381 struct tcb *tcp;
 382 {
 383         if (entering(tcp)) {
 384                 tprintf("%#lx, %lu, %lu, ", tcp->u_arg[0], tcp->u_arg[1],
 385                         tcp->u_arg[2]);
 386                 printflags(mremap_flags, tcp->u_arg[3], "MREMAP_???");
 387         }
 388         return RVAL_HEX;
 389 }
 390
 391 static const struct xlat madvise_cmds[] = {
 392 #ifdef MADV_NORMAL
 393         { MADV_NORMAL,          "MADV_NORMAL" },
 394 #endif
 395 #ifdef MADV_RANDOM
 396         { MADV_RANDOM,          "MADV_RANDOM" },
 397 #endif
 398 #ifdef MADV_SEQUENTIAL
 399         { MADV_SEQUENTIAL,      "MADV_SEQUENTIAL" },
 400 #endif
 401 #ifdef MADV_WILLNEED
 402         { MADV_WILLNEED,        "MADV_WILLNEED" },
 403 #endif
 404 #ifdef MADV_DONTNEED
 405         { MADV_DONTNEED,        "MADV_DONTNEED" },
 406 #endif
 407         { 0,                    NULL },
 408 };
 409
 410
 411 int
 412 sys_madvise(tcp)
 413 struct tcb *tcp;
 414 {
 415         if (entering(tcp)) {
 416                 tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
 417                 printxval(madvise_cmds, tcp->u_arg[2], "MADV_???");
 418         }
 419         return 0;
 420 }
 421
 422
 423 static const struct xlat mlockall_flags[] = {
 424 #ifdef MCL_CURRENT
 425         { MCL_CURRENT,  "MCL_CURRENT" },
 426 #endif
 427 #ifdef MCL_FUTURE
 428         { MCL_FUTURE,   "MCL_FUTURE" },
 429 #endif
 430         { 0,            NULL}
 431 };
 432
 433 int
 434 sys_mlockall(tcp)
 435 struct tcb *tcp;
 436 {
 437         if (entering(tcp)) {
 438                 printflags(mlockall_flags, tcp->u_arg[0], "MCL_???");
 439         }
 440         return 0;
 441 }
 442
 443
 444 #endif /* LINUX */
 445
 446 #ifdef MS_ASYNC
 447
 448 static const struct xlat mctl_sync[] = {
 449 #ifdef MS_SYNC
 450         { MS_SYNC,      "MS_SYNC"       },
 451 #endif
 452         { MS_ASYNC,     "MS_ASYNC"      },
 453         { MS_INVALIDATE,"MS_INVALIDATE" },
 454         { 0,            NULL            },
 455 };
 456
 457 int
 458 sys_msync(tcp)
 459 struct tcb *tcp;
 460 {
 461         if (entering(tcp)) {
 462                 /* addr */
 463                 tprintf("%#lx", tcp->u_arg[0]);
 464                 /* len */
 465                 tprintf(", %lu, ", tcp->u_arg[1]);
 466                 /* flags */
 467                 printflags(mctl_sync, tcp->u_arg[2], "MS_???");
 468         }
 469         return 0;
 470 }
 471
 472 #endif /* MS_ASYNC */
 473
 474 #ifdef MC_SYNC
 475
 476 static const struct xlat mctl_funcs[] = {
 477         { MC_LOCK,      "MC_LOCK"       },
 478         { MC_LOCKAS,    "MC_LOCKAS"     },
 479         { MC_SYNC,      "MC_SYNC"       },
 480         { MC_UNLOCK,    "MC_UNLOCK"     },
 481         { MC_UNLOCKAS,  "MC_UNLOCKAS"   },
 482         { 0,            NULL            },
 483 };
 484
 485 static const struct xlat mctl_lockas[] = {
 486         { MCL_CURRENT,  "MCL_CURRENT"   },
 487         { MCL_FUTURE,   "MCL_FUTURE"    },
 488         { 0,            NULL            },
 489 };
 490
 491 int
 492 sys_mctl(tcp)
 493 struct tcb *tcp;
 494 {
 495         int arg, function;
 496
 497         if (entering(tcp)) {
 498                 /* addr */
 499                 tprintf("%#lx", tcp->u_arg[0]);
 500                 /* len */
 501                 tprintf(", %lu, ", tcp->u_arg[1]);
 502                 /* function */
 503                 function = tcp->u_arg[2];
 504                 printflags(mctl_funcs, function, "MC_???");
 505                 /* arg */
 506                 arg = tcp->u_arg[3];
 507                 tprintf(", ");
 508                 switch (function) {
 509                 case MC_SYNC:
 510                         printflags(mctl_sync, arg, "MS_???");
 511                         break;
 512                 case MC_LOCKAS:
 513                         printflags(mctl_lockas, arg, "MCL_???");
 514                         break;
 515                 default:
 516                         tprintf("%#x", arg);
 517                         break;
 518                 }
 519         }
 520         return 0;
 521 }
 522
 523 #endif /* MC_SYNC */
 524
 525 int
 526 sys_mincore(tcp)
 527 struct tcb *tcp;
 528 {
 529         unsigned long i, len;
 530         char *vec = NULL;
 531
 532         if (entering(tcp)) {
 533                 tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
 534         } else {
 535                 len = tcp->u_arg[1];
 536                 if (syserror(tcp) || tcp->u_arg[2] == 0 ||
 537                         (vec = malloc(len)) == NULL ||
 538                         umoven(tcp, tcp->u_arg[2], len, vec) < 0)
 539                         tprintf("%#lx", tcp->u_arg[2]);
 540                 else {
 541                         tprintf("[");
 542                         for (i = 0; i < len; i++) {
 543                                 if (abbrev(tcp) && i >= max_strlen) {
 544                                         tprintf("...");
 545                                         break;
 546                                 }
 547                                 tprintf((vec[i] & 1) ? "1" : "0");
 548                         }
 549                         tprintf("]");
 550                 }
 551                 if (vec)
 552                         free(vec);
 553         }
 554         return 0;
 555 }
 556
 557 #if defined(ALPHA) || defined(FREEBSD) || defined(IA64) || defined(SUNOS4) || defined(SVR4) || defined(SPARC) || defined(SPARC64)
 558 int
 559 sys_getpagesize(tcp)
 560 struct tcb *tcp;
 561 {
 562         if (exiting(tcp))
 563                 return RVAL_HEX;
 564         return 0;
 565 }
 566 #endif /* ALPHA || FREEBSD || IA64 || SUNOS4 || SVR4 */
 567
 568 #if defined(LINUX) && defined(__i386__)
 569 void
 570 print_ldt_entry(struct modify_ldt_ldt_s *ldt_entry)
 571 {
 572         tprintf("base_addr:%#08lx, "
 573                 "limit:%d, "
 574                 "seg_32bit:%d, "
 575                 "contents:%d, "
 576                 "read_exec_only:%d, "
 577                 "limit_in_pages:%d, "
 578                 "seg_not_present:%d, "
 579                 "useable:%d}",
 580                 (long) ldt_entry->base_addr,
 581                 ldt_entry->limit,
 582                 ldt_entry->seg_32bit,
 583                 ldt_entry->contents,
 584                 ldt_entry->read_exec_only,
 585                 ldt_entry->limit_in_pages,
 586                 ldt_entry->seg_not_present,
 587                 ldt_entry->useable);
 588 }
 589
 590 int
 591 sys_modify_ldt(tcp)
 592 struct tcb *tcp;
 593 {
 594         if (entering(tcp)) {
 595                 struct modify_ldt_ldt_s copy;
 596                 tprintf("%ld", tcp->u_arg[0]);
 597                 if (tcp->u_arg[1] == 0
 598                                 || tcp->u_arg[2] != sizeof (struct modify_ldt_ldt_s)
 599                                 || umove(tcp, tcp->u_arg[1], &copy) == -1)
 600                         tprintf(", %lx", tcp->u_arg[1]);
 601                 else {
 602                         tprintf(", {entry_number:%d, ", copy.entry_number);
 603                         if (!verbose(tcp))
 604                                 tprintf("...}");
 605                         else {
 606                                 print_ldt_entry(&copy);
 607                         }
 608                 }
 609                 tprintf(", %lu", tcp->u_arg[2]);
 610         }
 611         return 0;
 612 }
 613
 614 int
 615 sys_set_thread_area(tcp)
 616 struct tcb *tcp;
 617 {
 618         struct modify_ldt_ldt_s copy;
 619         if (entering(tcp)) {
 620                 if (umove(tcp, tcp->u_arg[0], &copy) != -1) {
 621                         if (copy.entry_number == -1)
 622                                 tprintf("{entry_number:%d -> ",
 623                                         copy.entry_number);
 624                         else
 625                                 tprintf("{entry_number:");
 626                 }
 627         } else {
 628                 if (umove(tcp, tcp->u_arg[0], &copy) != -1) {
 629                         tprintf("%d, ", copy.entry_number);
 630                         if (!verbose(tcp))
 631                                 tprintf("...}");
 632                         else {
 633                                 print_ldt_entry(&copy);
 634                         }
 635                 } else {
 636                         tprintf("%lx", tcp->u_arg[0]);
 637                 }
 638         }
 639         return 0;
 640
 641 }
 642
 643 int
 644 sys_get_thread_area(tcp)
 645 struct tcb *tcp;
 646 {
 647         struct modify_ldt_ldt_s copy;
 648         if (exiting(tcp)) {
 649                 if (umove(tcp, tcp->u_arg[0], &copy) != -1) {
 650                         tprintf("{entry_number:%d, ", copy.entry_number);
 651                         if (!verbose(tcp))
 652                                 tprintf("...}");
 653                         else {
 654                                 print_ldt_entry(&copy);
 655                         }
 656                 } else {
 657                         tprintf("%lx", tcp->u_arg[0]);
 658                 }
 659         }
 660         return 0;
 661
 662 }
 663 #endif /* LINUX && __i386__ */
 664
 665 #if defined(LINUX)
 666 int
 667 sys_remap_file_pages(tcp)
 668 struct tcb *tcp;
 669 {
 670         if (entering(tcp)) {
 671                 tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
 672                 printflags(mmap_prot, tcp->u_arg[2], "PROT_???");
 673                 tprintf(", %lu, ", tcp->u_arg[3]);
 674 #ifdef MAP_TYPE
 675                 printxval(mmap_flags, tcp->u_arg[4] & MAP_TYPE, "MAP_???");
 676                 addflags(mmap_flags, tcp->u_arg[4] & ~MAP_TYPE);
 677 #else
 678                 printflags(mmap_flags, tcp->u_arg[4], "MAP_???");
 679 #endif
 680         }
 681         return 0;
 682 }
 683
 684
 685 #define MPOL_DEFAULT    0
 686 #define MPOL_PREFERRED  1
 687 #define MPOL_BIND       2
 688 #define MPOL_INTERLEAVE 3
 689
 690 #define MPOL_F_NODE     (1<<0)
 691 #define MPOL_F_ADDR     (1<<1)
 692
 693 #define MPOL_MF_STRICT  (1<<0)
 694 #define MPOL_MF_MOVE    (1<<1)
 695 #define MPOL_MF_MOVE_ALL (1<<2)
 696
 697
 698 static const struct xlat policies[] = {
 699         { MPOL_DEFAULT,         "MPOL_DEFAULT"          },
 700         { MPOL_PREFERRED,       "MPOL_PREFERRED"        },
 701         { MPOL_BIND,            "MPOL_BIND"             },
 702         { MPOL_INTERLEAVE,      "MPOL_INTERLEAVE"       },
 703         { 0,                    NULL                    }
 704 };
 705
 706 static const struct xlat mbindflags[] = {
 707         { MPOL_MF_STRICT,       "MPOL_MF_STRICT"        },
 708         { MPOL_MF_MOVE,         "MPOL_MF_MOVE"          },
 709         { MPOL_MF_MOVE_ALL,     "MPOL_MF_MOVE_ALL"      },
 710         { 0,                    NULL                    }
 711 };
 712
 713 static const struct xlat mempolicyflags[] = {
 714         { MPOL_F_NODE,          "MPOL_F_NODE"           },
 715         { MPOL_F_ADDR,          "MPOL_F_ADDR"           },
 716         { 0,                    NULL                    }
 717 };
 718
 719 static const struct xlat move_pages_flags[] = {
 720         { MPOL_MF_MOVE,         "MPOL_MF_MOVE"          },
 721         { MPOL_MF_MOVE_ALL,     "MPOL_MF_MOVE_ALL"      },
 722         { 0,                    NULL                    }
 723 };
 724
 725
 726 static void
 727 get_nodes(tcp, ptr, maxnodes, err)
 728 struct tcb *tcp;
 729 unsigned long ptr;
 730 unsigned long maxnodes;
 731 int err;
 732 {
 733         unsigned long nlongs, size, end;
 734
 735         nlongs = (maxnodes + 8 * sizeof(long) - 1) / (8 * sizeof(long));
 736         size = nlongs * sizeof(long);
 737         end = ptr + size;
 738         if (nlongs == 0 || ((err || verbose(tcp)) && (size * 8 == maxnodes)
 739                             && (end > ptr))) {
 740                 unsigned long n, cur, abbrev_end;
 741                 int failed = 0;
 742
 743                 if (abbrev(tcp)) {
 744                         abbrev_end = ptr + max_strlen * sizeof(long);
 745                         if (abbrev_end < ptr)
 746                                 abbrev_end = end;
 747                 } else {
 748                         abbrev_end = end;
 749                 }
 750                 tprintf(", {");
 751                 for (cur = ptr; cur < end; cur += sizeof(long)) {
 752                         if (cur > ptr)
 753                                 tprintf(", ");
 754                         if (cur >= abbrev_end) {
 755                                 tprintf("...");
 756                                 break;
 757                         }
 758                         if (umoven(tcp, cur, sizeof(n), (char *) &n) < 0) {
 759                                 tprintf("?");
 760                                 failed = 1;
 761                                 break;
 762                         }
 763                         tprintf("%#0*lx", (int) sizeof(long) * 2 + 2, n);
 764                 }
 765                 tprintf("}");
 766                 if (failed)
 767                         tprintf(" %#lx", ptr);
 768         } else
 769                 tprintf(", %#lx", ptr);
 770         tprintf(", %lu", maxnodes);
 771 }
 772
 773 int
 774 sys_mbind(tcp)
 775 struct tcb *tcp;
 776 {
 777         if (entering(tcp)) {
 778                 tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
 779                 printxval(policies, tcp->u_arg[2], "MPOL_???");
 780                 get_nodes(tcp, tcp->u_arg[3], tcp->u_arg[4], 0);
 781                 tprintf(", ");
 782                 printflags(mbindflags, tcp->u_arg[5], "MPOL_???");
 783         }
 784         return 0;
 785 }
 786
 787 int
 788 sys_set_mempolicy(tcp)
 789 struct tcb *tcp;
 790 {
 791         if (entering(tcp)) {
 792                 printxval(policies, tcp->u_arg[0], "MPOL_???");
 793                 get_nodes(tcp, tcp->u_arg[1], tcp->u_arg[2], 0);
 794         }
 795         return 0;
 796 }
 797
 798 int
 799 sys_get_mempolicy(tcp)
 800 struct tcb *tcp;
 801 {
 802         if (exiting(tcp)) {
 803                 int pol;
 804                 if (tcp->u_arg[0] == 0)
 805                         tprintf("NULL");
 806                 else if (syserror(tcp) || umove(tcp, tcp->u_arg[0], &pol) < 0)
 807                         tprintf("%#lx", tcp->u_arg[0]);
 808                 else
 809                         printxval(policies, pol, "MPOL_???");
 810                 get_nodes(tcp, tcp->u_arg[1], tcp->u_arg[2], syserror(tcp));
 811                 tprintf(", %#lx, ", tcp->u_arg[3]);
 812                 printflags(mempolicyflags, tcp->u_arg[4], "MPOL_???");
 813         }
 814         return 0;
 815 }
 816
 817 int
 818 sys_move_pages(tcp)
 819 struct tcb *tcp;
 820 {
 821         if (entering(tcp)) {
 822                 unsigned long npages = tcp->u_arg[1];
 823                 tprintf("%ld, %lu, ", tcp->u_arg[0], npages);
 824                 if (tcp->u_arg[2] == 0)
 825                         tprintf("NULL, ");
 826                 else {
 827                         int i;
 828                         long puser = tcp->u_arg[2];
 829                         tprintf("{");
 830                         for (i = 0; i < npages; ++i) {
 831                                 void *p;
 832                                 if (i > 0)
 833                                         tprintf(", ");
 834                                 if (umove(tcp, puser, &p) < 0) {
 835                                         tprintf("???");
 836                                         break;
 837                                 }
 838                                 tprintf("%p", p);
 839                                 puser += sizeof (void *);
 840                         }
 841                         tprintf("}, ");
 842                 }
 843                 if (tcp->u_arg[3] == 0)
 844                         tprintf("NULL, ");
 845                 else {
 846                         int i;
 847                         long nodeuser = tcp->u_arg[3];
 848                         tprintf("{");
 849                         for (i = 0; i < npages; ++i) {
 850                                 int node;
 851                                 if (i > 0)
 852                                         tprintf(", ");
 853                                 if (umove(tcp, nodeuser, &node) < 0) {
 854                                         tprintf("???");
 855                                         break;
 856                                 }
 857                                 tprintf("%#x", node);
 858                                 nodeuser += sizeof (int);
 859                         }
 860                         tprintf("}, ");
 861                 }
 862         }
 863         if (exiting(tcp)) {
 864                 unsigned long npages = tcp->u_arg[1];
 865                 if (tcp->u_arg[4] == 0)
 866                         tprintf("NULL, ");
 867                 else {
 868                         int i;
 869                         long statususer = tcp->u_arg[4];
 870                         tprintf("{");
 871                         for (i = 0; i < npages; ++i) {
 872                                 int status;
 873                                 if (i > 0)
 874                                         tprintf(", ");
 875                                 if (umove(tcp, statususer, &status) < 0) {
 876                                         tprintf("???");
 877                                         break;
 878                                 }
 879                                 tprintf("%#x", status);
 880                                 statususer += sizeof (int);
 881                         }
 882                         tprintf("}, ");
 883                 }
 884                 printflags(move_pages_flags, tcp->u_arg[5], "MPOL_???");
 885         }
 886         return 0;
 887 }
 888 #endif
 889
 890 #if defined(LINUX) && defined(POWERPC)
 891 int
 892 sys_subpage_prot(tcp)
 893 struct tcb *tcp;
 894 {
 895         if (entering(tcp)) {
 896                 unsigned long cur, end, abbrev_end, entries;
 897                 unsigned int entry;
 898
 899                 tprintf("%#lx, %#lx, ", tcp->u_arg[0], tcp->u_arg[1]);
 900                 entries = tcp->u_arg[1] >> 16;
 901                 if (!entries || !tcp->u_arg[2]) {
 902                         tprintf("{}");
 903                         return 0;
 904                 }
 905                 cur = tcp->u_arg[2];
 906                 end = cur + (sizeof(int) * entries);
 907                 if (!verbose(tcp) || end < tcp->u_arg[2]) {
 908                         tprintf("%#lx", tcp->u_arg[2]);
 909                         return 0;
 910                 }
 911                 if (abbrev(tcp)) {
 912                         abbrev_end = cur + (sizeof(int) * max_strlen);
 913                         if (abbrev_end > end)
 914                                 abbrev_end = end;
 915                 }
 916                 else
 917                         abbrev_end = end;
 918                 tprintf("{");
 919                 for (; cur < end; cur += sizeof(int)) {
 920                         if (cur > tcp->u_arg[2])
 921                                 tprintf(", ");
 922                         if (cur >= abbrev_end) {
 923                                 tprintf("...");
 924                                 break;
 925                         }
 926                         if (umove(tcp, cur, &entry) < 0) {
 927                                 tprintf("??? [%#lx]", cur);
 928                                 break;
 929                         }
 930                         else
 931                                 tprintf("%#08x", entry);
 932                 }
 933                 tprintf("}");
 934         }
 935
 936         return 0;
 937 }
 938 #endif