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   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(struct tcb *tcp)
  61 {
  62         if (entering(tcp)) {
  63                 tprintf("%#lx", tcp->u_arg[0]);
  64         }
  65 #ifdef LINUX
  66         return RVAL_HEX;
  67 #else
  68         return 0;
  69 #endif
  70 }
  71
  72 #if defined(FREEBSD) || defined(SUNOS4)
  73 int
  74 sys_sbrk(struct tcb *tcp)
  75 {
  76         if (entering(tcp)) {
  77                 tprintf("%lu", tcp->u_arg[0]);
  78         }
  79         return RVAL_HEX;
  80 }
  81 #endif /* FREEBSD || SUNOS4 */
  82
  83 static const struct xlat mmap_prot[] = {
  84         { PROT_NONE,    "PROT_NONE",    },
  85         { PROT_READ,    "PROT_READ"     },
  86         { PROT_WRITE,   "PROT_WRITE"    },
  87         { PROT_EXEC,    "PROT_EXEC"     },
  88 #ifdef PROT_SEM
  89         { PROT_SEM,     "PROT_SEM"      },
  90 #endif
  91 #ifdef PROT_GROWSDOWN
  92         { PROT_GROWSDOWN,"PROT_GROWSDOWN"},
  93 #endif
  94 #ifdef PROT_GROWSUP
  95         { PROT_GROWSUP, "PROT_GROWSUP"  },
  96 #endif
  97 #ifdef PROT_SAO
  98         { PROT_SAO,     "PROT_SAO"      },
  99 #endif
 100         { 0,            NULL            },
 101 };
 102
 103 static const struct xlat mmap_flags[] = {
 104         { MAP_SHARED,   "MAP_SHARED"    },
 105         { MAP_PRIVATE,  "MAP_PRIVATE"   },
 106         { MAP_FIXED,    "MAP_FIXED"     },
 107 #ifdef MAP_ANONYMOUS
 108         { MAP_ANONYMOUS,"MAP_ANONYMOUS" },
 109 #endif
 110 #ifdef MAP_32BIT
 111         { MAP_32BIT,    "MAP_32BIT"     },
 112 #endif
 113 #ifdef MAP_RENAME
 114         { MAP_RENAME,   "MAP_RENAME"    },
 115 #endif
 116 #ifdef MAP_NORESERVE
 117         { MAP_NORESERVE,"MAP_NORESERVE" },
 118 #endif
 119 #ifdef MAP_POPULATE
 120         { MAP_POPULATE, "MAP_POPULATE" },
 121 #endif
 122 #ifdef MAP_NONBLOCK
 123         { MAP_NONBLOCK, "MAP_NONBLOCK" },
 124 #endif
 125         /*
 126          * XXX - this was introduced in SunOS 4.x to distinguish between
 127          * the old pre-4.x "mmap()", which:
 128          *
 129          *      only let you map devices with an "mmap" routine (e.g.,
 130          *      frame buffers) in;
 131          *
 132          *      required you to specify the mapping address;
 133          *
 134          *      returned 0 on success and -1 on failure;
 135          *
 136          * memory and which, and the 4.x "mmap()" which:
 137          *
 138          *      can map plain files;
 139          *
 140          *      can be asked to pick where to map the file;
 141          *
 142          *      returns the address where it mapped the file on success
 143          *      and -1 on failure.
 144          *
 145          * It's not actually used in source code that calls "mmap()"; the
 146          * "mmap()" routine adds it for you.
 147          *
 148          * It'd be nice to come up with some way of eliminating it from
 149          * the flags, e.g. reporting calls *without* it as "old_mmap()"
 150          * and calls with it as "mmap()".
 151          */
 152 #ifdef _MAP_NEW
 153         { _MAP_NEW,     "_MAP_NEW"      },
 154 #endif
 155 #ifdef MAP_GROWSDOWN
 156         { MAP_GROWSDOWN,"MAP_GROWSDOWN" },
 157 #endif
 158 #ifdef MAP_DENYWRITE
 159         { MAP_DENYWRITE,"MAP_DENYWRITE" },
 160 #endif
 161 #ifdef MAP_EXECUTABLE
 162         { MAP_EXECUTABLE,"MAP_EXECUTABLE"},
 163 #endif
 164 #ifdef MAP_INHERIT
 165         { MAP_INHERIT,"MAP_INHERIT"     },
 166 #endif
 167 #ifdef MAP_FILE
 168         { MAP_FILE,"MAP_FILE"},
 169 #endif
 170 #ifdef MAP_LOCKED
 171         { MAP_LOCKED,"MAP_LOCKED"},
 172 #endif
 173         /* FreeBSD ones */
 174 #ifdef MAP_ANON
 175         { MAP_ANON,             "MAP_ANON"      },
 176 #endif
 177 #ifdef MAP_HASSEMAPHORE
 178         { MAP_HASSEMAPHORE,     "MAP_HASSEMAPHORE"      },
 179 #endif
 180 #ifdef MAP_STACK
 181         { MAP_STACK,            "MAP_STACK"     },
 182 #endif
 183 #ifdef MAP_NOSYNC
 184         { MAP_NOSYNC,           "MAP_NOSYNC"    },
 185 #endif
 186 #ifdef MAP_NOCORE
 187         { MAP_NOCORE,           "MAP_NOCORE"    },
 188 #endif
 189 #ifdef TILE
 190         { MAP_CACHE_NO_LOCAL, "MAP_CACHE_NO_LOCAL" },
 191         { MAP_CACHE_NO_L2, "MAP_CACHE_NO_L2" },
 192         { MAP_CACHE_NO_L1, "MAP_CACHE_NO_L1" },
 193 #endif
 194         { 0,            NULL            },
 195 };
 196
 197 #ifdef TILE
 198 static int
 199 addtileflags(long flags)
 200 {
 201         long home = flags & _MAP_CACHE_MKHOME(_MAP_CACHE_HOME_MASK);
 202         flags &= ~_MAP_CACHE_MKHOME(_MAP_CACHE_HOME_MASK);
 203
 204         if (flags & _MAP_CACHE_INCOHERENT) {
 205                 flags &= ~_MAP_CACHE_INCOHERENT;
 206                 if (home == MAP_CACHE_HOME_NONE) {
 207                         tprints("|MAP_CACHE_INCOHERENT");
 208                         return flags;
 209                 }
 210                 tprints("|_MAP_CACHE_INCOHERENT");
 211         }
 212
 213         switch (home) {
 214         case 0: break;
 215         case MAP_CACHE_HOME_HERE: tprints("|MAP_CACHE_HOME_HERE"); break;
 216         case MAP_CACHE_HOME_NONE: tprints("|MAP_CACHE_HOME_NONE"); break;
 217         case MAP_CACHE_HOME_SINGLE: tprints("|MAP_CACHE_HOME_SINGLE"); break;
 218         case MAP_CACHE_HOME_TASK: tprints("|MAP_CACHE_HOME_TASK"); break;
 219         case MAP_CACHE_HOME_HASH: tprints("|MAP_CACHE_HOME_HASH"); break;
 220         default:
 221                 tprintf("|MAP_CACHE_HOME(%d)",
 222                         (home >> _MAP_CACHE_HOME_SHIFT) );
 223                 break;
 224         }
 225
 226         return flags;
 227 }
 228 #endif
 229
 230 #if !HAVE_LONG_LONG_OFF_T
 231 static int
 232 print_mmap(struct tcb *tcp, long *u_arg, long long offset)
 233 {
 234         if (entering(tcp)) {
 235                 /* addr */
 236                 if (!u_arg[0])
 237                         tprints("NULL, ");
 238                 else
 239                         tprintf("%#lx, ", u_arg[0]);
 240                 /* len */
 241                 tprintf("%lu, ", u_arg[1]);
 242                 /* prot */
 243                 printflags(mmap_prot, u_arg[2], "PROT_???");
 244                 tprints(", ");
 245                 /* flags */
 246 #ifdef MAP_TYPE
 247                 printxval(mmap_flags, u_arg[3] & MAP_TYPE, "MAP_???");
 248 #ifdef TILE
 249                 addflags(mmap_flags, addtileflags(u_arg[3] & ~MAP_TYPE));
 250 #else
 251                 addflags(mmap_flags, u_arg[3] & ~MAP_TYPE);
 252 #endif
 253 #else
 254                 printflags(mmap_flags, u_arg[3], "MAP_???");
 255 #endif
 256                 /* fd */
 257                 tprints(", ");
 258                 printfd(tcp, u_arg[4]);
 259                 /* offset */
 260                 tprintf(", %#llx", offset);
 261         }
 262         return RVAL_HEX;
 263 }
 264
 265 #ifdef LINUX
 266 int sys_old_mmap(struct tcb *tcp)
 267 {
 268 #if defined(IA64)
 269         /*
 270          * IA64 processes never call this routine, they only use the
 271          * new `sys_mmap' interface.
 272          * For IA32 processes, this code converts the integer arguments
 273          * that they pushed onto the stack, into longs.
 274          *
 275          * Note that addresses with bit 31 set will be sign extended.
 276          * Fortunately, those addresses are not currently being generated
 277          * for IA32 processes so it's not a problem.
 278          */
 279         int i;
 280         long u_arg[6];
 281         int narrow_arg[6];
 282         if (umoven(tcp, tcp->u_arg[0], sizeof(narrow_arg), (char *) narrow_arg) == -1)
 283                 return 0;
 284         for (i = 0; i < 6; i++)
 285                 u_arg[i] = narrow_arg[i];
 286 #elif defined(SH) || defined(SH64)
 287         /* SH has always passed the args in registers */
 288         long *u_arg = tcp->u_arg;
 289 #else
 290         long u_arg[6];
 291 # if defined(X86_64)
 292         if (current_personality == 1) {
 293                 int i;
 294                 unsigned narrow_arg[6];
 295                 if (umoven(tcp, tcp->u_arg[0], sizeof(narrow_arg), (char *) narrow_arg) == -1)
 296                         return 0;
 297                 for (i = 0; i < 6; ++i)
 298                         u_arg[i] = narrow_arg[i];
 299         }
 300         else
 301 # endif
 302         if (umoven(tcp, tcp->u_arg[0], sizeof(u_arg), (char *) u_arg) == -1)
 303                 return 0;
 304 #endif /* other architectures */
 305
 306         return print_mmap(tcp, u_arg, u_arg[5]);
 307 }
 308 #endif /* LINUX */
 309
 310 int
 311 sys_mmap(struct tcb *tcp)
 312 {
 313         long long offset = tcp->u_arg[5];
 314
 315         /* FIXME: why only SH64? i386 mmap2 syscall ends up
 316          * in this function, but does not convert offset
 317          * from pages to bytes. See test/mmap_offset_decode.c
 318          * Why SH64 and i386 are handled differently?
 319          */
 320 #if defined(LINUX) && defined(SH64)
 321         /*
 322          * Old mmap differs from new mmap in specifying the
 323          * offset in units of bytes rather than pages.  We
 324          * pretend it's in byte units so the user only ever
 325          * sees bytes in the printout.
 326          */
 327         offset <<= PAGE_SHIFT;
 328 #endif
 329 #if defined(LINUX_MIPSN32)
 330         offset = tcp->ext_arg[5];
 331 #endif
 332         return print_mmap(tcp, tcp->u_arg, offset);
 333 }
 334 #endif /* !HAVE_LONG_LONG_OFF_T */
 335
 336 #if _LFS64_LARGEFILE || HAVE_LONG_LONG_OFF_T
 337 /* TODO: comment which arches use this routine.
 338  * For one, does ALPHA on Linux use this??
 339  * From code it seems that it might use 7 or 8 registers,
 340  * which is strange - Linux syscalls can pass maximum of 6 parameters!
 341  */
 342 int
 343 sys_mmap64(struct tcb *tcp)
 344 {
 345         if (entering(tcp)) {
 346 #if !defined(LINUX) || defined(ALPHA)
 347                 long *u_arg = tcp->u_arg;
 348 #else
 349                 long u_arg[7];
 350                 if (umoven(tcp, tcp->u_arg[0], sizeof u_arg,
 351                                 (char *) u_arg) == -1)
 352                         return 0;
 353 #endif
 354                 /* addr */
 355                 if (!u_arg[0])
 356                         tprints("NULL, ");
 357                 else
 358                         tprintf("%#lx, ", u_arg[0]);
 359                 /* len */
 360                 tprintf("%lu, ", u_arg[1]);
 361                 /* prot */
 362                 printflags(mmap_prot, u_arg[2], "PROT_???");
 363                 tprints(", ");
 364                 /* flags */
 365 #ifdef MAP_TYPE
 366                 printxval(mmap_flags, u_arg[3] & MAP_TYPE, "MAP_???");
 367                 addflags(mmap_flags, u_arg[3] & ~MAP_TYPE);
 368 #else
 369                 printflags(mmap_flags, u_arg[3], "MAP_???");
 370 #endif
 371                 /* fd */
 372                 tprints(", ");
 373                 printfd(tcp, u_arg[4]);
 374                 /* offset */
 375 #if !defined(LINUX) || defined(ALPHA)
 376                 printllval(tcp, ", %#llx", 5);
 377 #else
 378                 /* NOTE: not verified that [5] and [6] should be used.
 379                  * It's possible that long long is 64-bit aligned in memory
 380                  * and we need to use [6] and [7] here instead:
 381                  */
 382                 tprintf(", %#llx", LONG_LONG(u_arg[5], u_arg[6]));
 383 #endif
 384         }
 385         return RVAL_HEX;
 386 }
 387 #endif /* _LFS64_LARGEFILE || HAVE_LONG_LONG_OFF_T */
 388
 389
 390 int
 391 sys_munmap(struct tcb *tcp)
 392 {
 393         if (entering(tcp)) {
 394                 tprintf("%#lx, %lu",
 395                         tcp->u_arg[0], tcp->u_arg[1]);
 396         }
 397         return 0;
 398 }
 399
 400 int
 401 sys_mprotect(struct tcb *tcp)
 402 {
 403         if (entering(tcp)) {
 404                 tprintf("%#lx, %lu, ",
 405                         tcp->u_arg[0], tcp->u_arg[1]);
 406                 printflags(mmap_prot, tcp->u_arg[2], "PROT_???");
 407         }
 408         return 0;
 409 }
 410
 411 #ifdef LINUX
 412
 413 static const struct xlat mremap_flags[] = {
 414         { MREMAP_MAYMOVE,       "MREMAP_MAYMOVE"        },
 415 #ifdef MREMAP_FIXED
 416         { MREMAP_FIXED,         "MREMAP_FIXED"          },
 417 #endif
 418         { 0,                    NULL                    }
 419 };
 420
 421 int
 422 sys_mremap(struct tcb *tcp)
 423 {
 424         if (entering(tcp)) {
 425                 tprintf("%#lx, %lu, %lu, ", tcp->u_arg[0], tcp->u_arg[1],
 426                         tcp->u_arg[2]);
 427                 printflags(mremap_flags, tcp->u_arg[3], "MREMAP_???");
 428 #ifdef MREMAP_FIXED
 429                 if ((tcp->u_arg[3] & (MREMAP_MAYMOVE | MREMAP_FIXED)) ==
 430                     (MREMAP_MAYMOVE | MREMAP_FIXED))
 431                         tprintf(", %#lx", tcp->u_arg[4]);
 432 #endif
 433         }
 434         return RVAL_HEX;
 435 }
 436
 437 static const struct xlat madvise_cmds[] = {
 438 #ifdef MADV_NORMAL
 439         { MADV_NORMAL,          "MADV_NORMAL" },
 440 #endif
 441 #ifdef MADV_RANDOM
 442         { MADV_RANDOM,          "MADV_RANDOM" },
 443 #endif
 444 #ifdef MADV_SEQUENTIAL
 445         { MADV_SEQUENTIAL,      "MADV_SEQUENTIAL" },
 446 #endif
 447 #ifdef MADV_WILLNEED
 448         { MADV_WILLNEED,        "MADV_WILLNEED" },
 449 #endif
 450 #ifdef MADV_DONTNEED
 451         { MADV_DONTNEED,        "MADV_DONTNEED" },
 452 #endif
 453         { 0,                    NULL },
 454 };
 455
 456
 457 int
 458 sys_madvise(struct tcb *tcp)
 459 {
 460         if (entering(tcp)) {
 461                 tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
 462                 printxval(madvise_cmds, tcp->u_arg[2], "MADV_???");
 463         }
 464         return 0;
 465 }
 466
 467
 468 static const struct xlat mlockall_flags[] = {
 469 #ifdef MCL_CURRENT
 470         { MCL_CURRENT,  "MCL_CURRENT" },
 471 #endif
 472 #ifdef MCL_FUTURE
 473         { MCL_FUTURE,   "MCL_FUTURE" },
 474 #endif
 475         { 0,            NULL}
 476 };
 477
 478 int
 479 sys_mlockall(struct tcb *tcp)
 480 {
 481         if (entering(tcp)) {
 482                 printflags(mlockall_flags, tcp->u_arg[0], "MCL_???");
 483         }
 484         return 0;
 485 }
 486
 487
 488 #endif /* LINUX */
 489
 490 #ifdef MS_ASYNC
 491
 492 static const struct xlat mctl_sync[] = {
 493 #ifdef MS_SYNC
 494         { MS_SYNC,      "MS_SYNC"       },
 495 #endif
 496         { MS_ASYNC,     "MS_ASYNC"      },
 497         { MS_INVALIDATE,"MS_INVALIDATE" },
 498         { 0,            NULL            },
 499 };
 500
 501 int
 502 sys_msync(struct tcb *tcp)
 503 {
 504         if (entering(tcp)) {
 505                 /* addr */
 506                 tprintf("%#lx", tcp->u_arg[0]);
 507                 /* len */
 508                 tprintf(", %lu, ", tcp->u_arg[1]);
 509                 /* flags */
 510                 printflags(mctl_sync, tcp->u_arg[2], "MS_???");
 511         }
 512         return 0;
 513 }
 514
 515 #endif /* MS_ASYNC */
 516
 517 #ifdef MC_SYNC
 518
 519 static const struct xlat mctl_funcs[] = {
 520         { MC_LOCK,      "MC_LOCK"       },
 521         { MC_LOCKAS,    "MC_LOCKAS"     },
 522         { MC_SYNC,      "MC_SYNC"       },
 523         { MC_UNLOCK,    "MC_UNLOCK"     },
 524         { MC_UNLOCKAS,  "MC_UNLOCKAS"   },
 525         { 0,            NULL            },
 526 };
 527
 528 static const struct xlat mctl_lockas[] = {
 529         { MCL_CURRENT,  "MCL_CURRENT"   },
 530         { MCL_FUTURE,   "MCL_FUTURE"    },
 531         { 0,            NULL            },
 532 };
 533
 534 int
 535 sys_mctl(struct tcb *tcp)
 536 {
 537         int arg, function;
 538
 539         if (entering(tcp)) {
 540                 /* addr */
 541                 tprintf("%#lx", tcp->u_arg[0]);
 542                 /* len */
 543                 tprintf(", %lu, ", tcp->u_arg[1]);
 544                 /* function */
 545                 function = tcp->u_arg[2];
 546                 printflags(mctl_funcs, function, "MC_???");
 547                 /* arg */
 548                 arg = tcp->u_arg[3];
 549                 tprints(", ");
 550                 switch (function) {
 551                 case MC_SYNC:
 552                         printflags(mctl_sync, arg, "MS_???");
 553                         break;
 554                 case MC_LOCKAS:
 555                         printflags(mctl_lockas, arg, "MCL_???");
 556                         break;
 557                 default:
 558                         tprintf("%#x", arg);
 559                         break;
 560                 }
 561         }
 562         return 0;
 563 }
 564
 565 #endif /* MC_SYNC */
 566
 567 int
 568 sys_mincore(struct tcb *tcp)
 569 {
 570         if (entering(tcp)) {
 571                 tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
 572         } else {
 573                 unsigned long i, len;
 574                 char *vec = NULL;
 575
 576                 len = tcp->u_arg[1];
 577                 if (syserror(tcp) || tcp->u_arg[2] == 0 ||
 578                         (vec = malloc(len)) == NULL ||
 579                         umoven(tcp, tcp->u_arg[2], len, vec) < 0)
 580                         tprintf("%#lx", tcp->u_arg[2]);
 581                 else {
 582                         tprints("[");
 583                         for (i = 0; i < len; i++) {
 584                                 if (abbrev(tcp) && i >= max_strlen) {
 585                                         tprints("...");
 586                                         break;
 587                                 }
 588                                 tprints((vec[i] & 1) ? "1" : "0");
 589                         }
 590                         tprints("]");
 591                 }
 592                 free(vec);
 593         }
 594         return 0;
 595 }
 596
 597 #if defined(ALPHA) || defined(FREEBSD) || defined(IA64) || defined(SUNOS4) || defined(SVR4) || defined(SPARC) || defined(SPARC64)
 598 int
 599 sys_getpagesize(struct tcb *tcp)
 600 {
 601         if (exiting(tcp))
 602                 return RVAL_HEX;
 603         return 0;
 604 }
 605 #endif /* ALPHA || FREEBSD || IA64 || SUNOS4 || SVR4 */
 606
 607 #if defined(LINUX) && defined(__i386__)
 608 void
 609 print_ldt_entry(struct modify_ldt_ldt_s *ldt_entry)
 610 {
 611         tprintf("base_addr:%#08lx, "
 612                 "limit:%d, "
 613                 "seg_32bit:%d, "
 614                 "contents:%d, "
 615                 "read_exec_only:%d, "
 616                 "limit_in_pages:%d, "
 617                 "seg_not_present:%d, "
 618                 "useable:%d}",
 619                 (long) ldt_entry->base_addr,
 620                 ldt_entry->limit,
 621                 ldt_entry->seg_32bit,
 622                 ldt_entry->contents,
 623                 ldt_entry->read_exec_only,
 624                 ldt_entry->limit_in_pages,
 625                 ldt_entry->seg_not_present,
 626                 ldt_entry->useable);
 627 }
 628
 629 int
 630 sys_modify_ldt(struct tcb *tcp)
 631 {
 632         if (entering(tcp)) {
 633                 struct modify_ldt_ldt_s copy;
 634                 tprintf("%ld", tcp->u_arg[0]);
 635                 if (tcp->u_arg[1] == 0
 636                                 || tcp->u_arg[2] != sizeof(struct modify_ldt_ldt_s)
 637                                 || umove(tcp, tcp->u_arg[1], &copy) == -1)
 638                         tprintf(", %lx", tcp->u_arg[1]);
 639                 else {
 640                         tprintf(", {entry_number:%d, ", copy.entry_number);
 641                         if (!verbose(tcp))
 642                                 tprints("...}");
 643                         else {
 644                                 print_ldt_entry(&copy);
 645                         }
 646                 }
 647                 tprintf(", %lu", tcp->u_arg[2]);
 648         }
 649         return 0;
 650 }
 651
 652 int
 653 sys_set_thread_area(struct tcb *tcp)
 654 {
 655         struct modify_ldt_ldt_s copy;
 656         if (entering(tcp)) {
 657                 if (umove(tcp, tcp->u_arg[0], &copy) != -1) {
 658                         if (copy.entry_number == -1)
 659                                 tprintf("{entry_number:%d -> ",
 660                                         copy.entry_number);
 661                         else
 662                                 tprints("{entry_number:");
 663                 }
 664         } else {
 665                 if (umove(tcp, tcp->u_arg[0], &copy) != -1) {
 666                         tprintf("%d, ", copy.entry_number);
 667                         if (!verbose(tcp))
 668                                 tprints("...}");
 669                         else {
 670                                 print_ldt_entry(&copy);
 671                         }
 672                 } else {
 673                         tprintf("%lx", tcp->u_arg[0]);
 674                 }
 675         }
 676         return 0;
 677
 678 }
 679
 680 int
 681 sys_get_thread_area(struct tcb *tcp)
 682 {
 683         struct modify_ldt_ldt_s copy;
 684         if (exiting(tcp)) {
 685                 if (umove(tcp, tcp->u_arg[0], &copy) != -1) {
 686                         tprintf("{entry_number:%d, ", copy.entry_number);
 687                         if (!verbose(tcp))
 688                                 tprints("...}");
 689                         else {
 690                                 print_ldt_entry(&copy);
 691                         }
 692                 } else {
 693                         tprintf("%lx", tcp->u_arg[0]);
 694                 }
 695         }
 696         return 0;
 697
 698 }
 699 #endif /* LINUX && __i386__ */
 700
 701 #if defined(LINUX) && defined(M68K)
 702
 703 int
 704 sys_set_thread_area(struct tcb *tcp)
 705 {
 706         if (entering(tcp))
 707                 tprintf("%#lx", tcp->u_arg[0]);
 708         return 0;
 709
 710 }
 711
 712 int
 713 sys_get_thread_area(struct tcb *tcp)
 714 {
 715         return RVAL_HEX;
 716 }
 717 #endif
 718
 719 #if defined(LINUX)
 720 int
 721 sys_remap_file_pages(struct tcb *tcp)
 722 {
 723         if (entering(tcp)) {
 724                 tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
 725                 printflags(mmap_prot, tcp->u_arg[2], "PROT_???");
 726                 tprintf(", %lu, ", tcp->u_arg[3]);
 727 #ifdef MAP_TYPE
 728                 printxval(mmap_flags, tcp->u_arg[4] & MAP_TYPE, "MAP_???");
 729                 addflags(mmap_flags, tcp->u_arg[4] & ~MAP_TYPE);
 730 #else
 731                 printflags(mmap_flags, tcp->u_arg[4], "MAP_???");
 732 #endif
 733         }
 734         return 0;
 735 }
 736
 737
 738 #define MPOL_DEFAULT    0
 739 #define MPOL_PREFERRED  1
 740 #define MPOL_BIND       2
 741 #define MPOL_INTERLEAVE 3
 742
 743 #define MPOL_F_NODE     (1<<0)
 744 #define MPOL_F_ADDR     (1<<1)
 745
 746 #define MPOL_MF_STRICT  (1<<0)
 747 #define MPOL_MF_MOVE    (1<<1)
 748 #define MPOL_MF_MOVE_ALL (1<<2)
 749
 750
 751 static const struct xlat policies[] = {
 752         { MPOL_DEFAULT,         "MPOL_DEFAULT"          },
 753         { MPOL_PREFERRED,       "MPOL_PREFERRED"        },
 754         { MPOL_BIND,            "MPOL_BIND"             },
 755         { MPOL_INTERLEAVE,      "MPOL_INTERLEAVE"       },
 756         { 0,                    NULL                    }
 757 };
 758
 759 static const struct xlat mbindflags[] = {
 760         { MPOL_MF_STRICT,       "MPOL_MF_STRICT"        },
 761         { MPOL_MF_MOVE,         "MPOL_MF_MOVE"          },
 762         { MPOL_MF_MOVE_ALL,     "MPOL_MF_MOVE_ALL"      },
 763         { 0,                    NULL                    }
 764 };
 765
 766 static const struct xlat mempolicyflags[] = {
 767         { MPOL_F_NODE,          "MPOL_F_NODE"           },
 768         { MPOL_F_ADDR,          "MPOL_F_ADDR"           },
 769         { 0,                    NULL                    }
 770 };
 771
 772 static const struct xlat move_pages_flags[] = {
 773         { MPOL_MF_MOVE,         "MPOL_MF_MOVE"          },
 774         { MPOL_MF_MOVE_ALL,     "MPOL_MF_MOVE_ALL"      },
 775         { 0,                    NULL                    }
 776 };
 777
 778
 779 static void
 780 get_nodes(struct tcb *tcp, unsigned long ptr, unsigned long maxnodes, int err)
 781 {
 782         unsigned long nlongs, size, end;
 783
 784         nlongs = (maxnodes + 8 * sizeof(long) - 1) / (8 * sizeof(long));
 785         size = nlongs * sizeof(long);
 786         end = ptr + size;
 787         if (nlongs == 0 || ((err || verbose(tcp)) && (size * 8 == maxnodes)
 788                             && (end > ptr))) {
 789                 unsigned long n, cur, abbrev_end;
 790                 int failed = 0;
 791
 792                 if (abbrev(tcp)) {
 793                         abbrev_end = ptr + max_strlen * sizeof(long);
 794                         if (abbrev_end < ptr)
 795                                 abbrev_end = end;
 796                 } else {
 797                         abbrev_end = end;
 798                 }
 799                 tprints(", {");
 800                 for (cur = ptr; cur < end; cur += sizeof(long)) {
 801                         if (cur > ptr)
 802                                 tprints(", ");
 803                         if (cur >= abbrev_end) {
 804                                 tprints("...");
 805                                 break;
 806                         }
 807                         if (umoven(tcp, cur, sizeof(n), (char *) &n) < 0) {
 808                                 tprints("?");
 809                                 failed = 1;
 810                                 break;
 811                         }
 812                         tprintf("%#0*lx", (int) sizeof(long) * 2 + 2, n);
 813                 }
 814                 tprints("}");
 815                 if (failed)
 816                         tprintf(" %#lx", ptr);
 817         } else
 818                 tprintf(", %#lx", ptr);
 819         tprintf(", %lu", maxnodes);
 820 }
 821
 822 int
 823 sys_mbind(struct tcb *tcp)
 824 {
 825         if (entering(tcp)) {
 826                 tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
 827                 printxval(policies, tcp->u_arg[2], "MPOL_???");
 828                 get_nodes(tcp, tcp->u_arg[3], tcp->u_arg[4], 0);
 829                 tprints(", ");
 830                 printflags(mbindflags, tcp->u_arg[5], "MPOL_???");
 831         }
 832         return 0;
 833 }
 834
 835 int
 836 sys_set_mempolicy(struct tcb *tcp)
 837 {
 838         if (entering(tcp)) {
 839                 printxval(policies, tcp->u_arg[0], "MPOL_???");
 840                 get_nodes(tcp, tcp->u_arg[1], tcp->u_arg[2], 0);
 841         }
 842         return 0;
 843 }
 844
 845 int
 846 sys_get_mempolicy(struct tcb *tcp)
 847 {
 848         if (exiting(tcp)) {
 849                 int pol;
 850                 if (tcp->u_arg[0] == 0)
 851                         tprints("NULL");
 852                 else if (syserror(tcp) || umove(tcp, tcp->u_arg[0], &pol) < 0)
 853                         tprintf("%#lx", tcp->u_arg[0]);
 854                 else
 855                         printxval(policies, pol, "MPOL_???");
 856                 get_nodes(tcp, tcp->u_arg[1], tcp->u_arg[2], syserror(tcp));
 857                 tprintf(", %#lx, ", tcp->u_arg[3]);
 858                 printflags(mempolicyflags, tcp->u_arg[4], "MPOL_???");
 859         }
 860         return 0;
 861 }
 862
 863 int
 864 sys_move_pages(struct tcb *tcp)
 865 {
 866         if (entering(tcp)) {
 867                 unsigned long npages = tcp->u_arg[1];
 868                 tprintf("%ld, %lu, ", tcp->u_arg[0], npages);
 869                 if (tcp->u_arg[2] == 0)
 870                         tprints("NULL, ");
 871                 else {
 872                         int i;
 873                         long puser = tcp->u_arg[2];
 874                         tprints("{");
 875                         for (i = 0; i < npages; ++i) {
 876                                 void *p;
 877                                 if (i > 0)
 878                                         tprints(", ");
 879                                 if (umove(tcp, puser, &p) < 0) {
 880                                         tprints("???");
 881                                         break;
 882                                 }
 883                                 tprintf("%p", p);
 884                                 puser += sizeof(void *);
 885                         }
 886                         tprints("}, ");
 887                 }
 888                 if (tcp->u_arg[3] == 0)
 889                         tprints("NULL, ");
 890                 else {
 891                         int i;
 892                         long nodeuser = tcp->u_arg[3];
 893                         tprints("{");
 894                         for (i = 0; i < npages; ++i) {
 895                                 int node;
 896                                 if (i > 0)
 897                                         tprints(", ");
 898                                 if (umove(tcp, nodeuser, &node) < 0) {
 899                                         tprints("???");
 900                                         break;
 901                                 }
 902                                 tprintf("%#x", node);
 903                                 nodeuser += sizeof(int);
 904                         }
 905                         tprints("}, ");
 906                 }
 907         }
 908         if (exiting(tcp)) {
 909                 unsigned long npages = tcp->u_arg[1];
 910                 if (tcp->u_arg[4] == 0)
 911                         tprints("NULL, ");
 912                 else {
 913                         int i;
 914                         long statususer = tcp->u_arg[4];
 915                         tprints("{");
 916                         for (i = 0; i < npages; ++i) {
 917                                 int status;
 918                                 if (i > 0)
 919                                         tprints(", ");
 920                                 if (umove(tcp, statususer, &status) < 0) {
 921                                         tprints("???");
 922                                         break;
 923                                 }
 924                                 tprintf("%#x", status);
 925                                 statususer += sizeof(int);
 926                         }
 927                         tprints("}, ");
 928                 }
 929                 printflags(move_pages_flags, tcp->u_arg[5], "MPOL_???");
 930         }
 931         return 0;
 932 }
 933 #endif
 934
 935 #if defined(LINUX) && defined(POWERPC)
 936 int
 937 sys_subpage_prot(struct tcb *tcp)
 938 {
 939         if (entering(tcp)) {
 940                 unsigned long cur, end, abbrev_end, entries;
 941                 unsigned int entry;
 942
 943                 tprintf("%#lx, %#lx, ", tcp->u_arg[0], tcp->u_arg[1]);
 944                 entries = tcp->u_arg[1] >> 16;
 945                 if (!entries || !tcp->u_arg[2]) {
 946                         tprints("{}");
 947                         return 0;
 948                 }
 949                 cur = tcp->u_arg[2];
 950                 end = cur + (sizeof(int) * entries);
 951                 if (!verbose(tcp) || end < tcp->u_arg[2]) {
 952                         tprintf("%#lx", tcp->u_arg[2]);
 953                         return 0;
 954                 }
 955                 if (abbrev(tcp)) {
 956                         abbrev_end = cur + (sizeof(int) * max_strlen);
 957                         if (abbrev_end > end)
 958                                 abbrev_end = end;
 959                 }
 960                 else
 961                         abbrev_end = end;
 962                 tprints("{");
 963                 for (; cur < end; cur += sizeof(int)) {
 964                         if (cur > tcp->u_arg[2])
 965                                 tprints(", ");
 966                         if (cur >= abbrev_end) {
 967                                 tprints("...");
 968                                 break;
 969                         }
 970                         if (umove(tcp, cur, &entry) < 0) {
 971                                 tprintf("??? [%#lx]", cur);
 972                                 break;
 973                         }
 974                         else
 975                                 tprintf("%#08x", entry);
 976                 }
 977                 tprints("}");
 978         }
 979
 980         return 0;
 981 }
 982 #endif