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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                         tprintf("|MAP_CACHE_INCOHERENT");
 208                         return flags;
 209                 }
 210                 tprintf("|_MAP_CACHE_INCOHERENT");
 211         }
 212
 213         switch (home) {
 214         case 0: break;
 215         case MAP_CACHE_HOME_HERE: tprintf("|MAP_CACHE_HOME_HERE"); break;
 216         case MAP_CACHE_HOME_NONE: tprintf("|MAP_CACHE_HOME_NONE"); break;
 217         case MAP_CACHE_HOME_SINGLE: tprintf("|MAP_CACHE_HOME_SINGLE"); break;
 218         case MAP_CACHE_HOME_TASK: tprintf("|MAP_CACHE_HOME_TASK"); break;
 219         case MAP_CACHE_HOME_HASH: tprintf("|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                         tprintf("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                 tprintf(", ");
 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                 tprintf(", ");
 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 int
 338 sys_mmap64(struct tcb *tcp)
 339 {
 340         if (entering(tcp)) {
 341 #if !defined(LINUX) || defined(ALPHA)
 342                 long *u_arg = tcp->u_arg;
 343 #else
 344                 long u_arg[7];
 345                 if (umoven(tcp, tcp->u_arg[0], sizeof u_arg,
 346                                 (char *) u_arg) == -1)
 347                         return 0;
 348 #endif
 349                 /* addr */
 350                 tprintf("%#lx, ", u_arg[0]);
 351                 /* len */
 352                 tprintf("%lu, ", u_arg[1]);
 353                 /* prot */
 354                 printflags(mmap_prot, u_arg[2], "PROT_???");
 355                 tprintf(", ");
 356                 /* flags */
 357 #ifdef MAP_TYPE
 358                 printxval(mmap_flags, u_arg[3] & MAP_TYPE, "MAP_???");
 359                 addflags(mmap_flags, u_arg[3] & ~MAP_TYPE);
 360 #else
 361                 printflags(mmap_flags, u_arg[3], "MAP_???");
 362 #endif
 363                 /* fd */
 364                 tprintf(", ");
 365         /* BUG?! should be u_arg[4] (without tcp->)? */
 366                 printfd(tcp, tcp->u_arg[4]);
 367                 /* offset */
 368         /* BUG?! on non-ALPHA linux, offset will be not in tcp->u_arg,
 369          * but in local u_arg, but printllval prints tcp->u_arg! */
 370                 printllval(tcp, ", %#llx", 5);
 371         }
 372         return RVAL_HEX;
 373 }
 374 #endif /* _LFS64_LARGEFILE || HAVE_LONG_LONG_OFF_T */
 375
 376
 377 int
 378 sys_munmap(struct tcb *tcp)
 379 {
 380         if (entering(tcp)) {
 381                 tprintf("%#lx, %lu",
 382                         tcp->u_arg[0], tcp->u_arg[1]);
 383         }
 384         return 0;
 385 }
 386
 387 int
 388 sys_mprotect(struct tcb *tcp)
 389 {
 390         if (entering(tcp)) {
 391                 tprintf("%#lx, %lu, ",
 392                         tcp->u_arg[0], tcp->u_arg[1]);
 393                 printflags(mmap_prot, tcp->u_arg[2], "PROT_???");
 394         }
 395         return 0;
 396 }
 397
 398 #ifdef LINUX
 399
 400 static const struct xlat mremap_flags[] = {
 401         { MREMAP_MAYMOVE,       "MREMAP_MAYMOVE"        },
 402 #ifdef MREMAP_FIXED
 403         { MREMAP_FIXED,         "MREMAP_FIXED"          },
 404 #endif
 405         { 0,                    NULL                    }
 406 };
 407
 408 int
 409 sys_mremap(struct tcb *tcp)
 410 {
 411         if (entering(tcp)) {
 412                 tprintf("%#lx, %lu, %lu, ", tcp->u_arg[0], tcp->u_arg[1],
 413                         tcp->u_arg[2]);
 414                 printflags(mremap_flags, tcp->u_arg[3], "MREMAP_???");
 415 #ifdef MREMAP_FIXED
 416                 if ((tcp->u_arg[3] & (MREMAP_MAYMOVE | MREMAP_FIXED)) ==
 417                     (MREMAP_MAYMOVE | MREMAP_FIXED))
 418                         tprintf(", %#lx", tcp->u_arg[4]);
 419 #endif
 420         }
 421         return RVAL_HEX;
 422 }
 423
 424 static const struct xlat madvise_cmds[] = {
 425 #ifdef MADV_NORMAL
 426         { MADV_NORMAL,          "MADV_NORMAL" },
 427 #endif
 428 #ifdef MADV_RANDOM
 429         { MADV_RANDOM,          "MADV_RANDOM" },
 430 #endif
 431 #ifdef MADV_SEQUENTIAL
 432         { MADV_SEQUENTIAL,      "MADV_SEQUENTIAL" },
 433 #endif
 434 #ifdef MADV_WILLNEED
 435         { MADV_WILLNEED,        "MADV_WILLNEED" },
 436 #endif
 437 #ifdef MADV_DONTNEED
 438         { MADV_DONTNEED,        "MADV_DONTNEED" },
 439 #endif
 440         { 0,                    NULL },
 441 };
 442
 443
 444 int
 445 sys_madvise(struct tcb *tcp)
 446 {
 447         if (entering(tcp)) {
 448                 tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
 449                 printxval(madvise_cmds, tcp->u_arg[2], "MADV_???");
 450         }
 451         return 0;
 452 }
 453
 454
 455 static const struct xlat mlockall_flags[] = {
 456 #ifdef MCL_CURRENT
 457         { MCL_CURRENT,  "MCL_CURRENT" },
 458 #endif
 459 #ifdef MCL_FUTURE
 460         { MCL_FUTURE,   "MCL_FUTURE" },
 461 #endif
 462         { 0,            NULL}
 463 };
 464
 465 int
 466 sys_mlockall(struct tcb *tcp)
 467 {
 468         if (entering(tcp)) {
 469                 printflags(mlockall_flags, tcp->u_arg[0], "MCL_???");
 470         }
 471         return 0;
 472 }
 473
 474
 475 #endif /* LINUX */
 476
 477 #ifdef MS_ASYNC
 478
 479 static const struct xlat mctl_sync[] = {
 480 #ifdef MS_SYNC
 481         { MS_SYNC,      "MS_SYNC"       },
 482 #endif
 483         { MS_ASYNC,     "MS_ASYNC"      },
 484         { MS_INVALIDATE,"MS_INVALIDATE" },
 485         { 0,            NULL            },
 486 };
 487
 488 int
 489 sys_msync(struct tcb *tcp)
 490 {
 491         if (entering(tcp)) {
 492                 /* addr */
 493                 tprintf("%#lx", tcp->u_arg[0]);
 494                 /* len */
 495                 tprintf(", %lu, ", tcp->u_arg[1]);
 496                 /* flags */
 497                 printflags(mctl_sync, tcp->u_arg[2], "MS_???");
 498         }
 499         return 0;
 500 }
 501
 502 #endif /* MS_ASYNC */
 503
 504 #ifdef MC_SYNC
 505
 506 static const struct xlat mctl_funcs[] = {
 507         { MC_LOCK,      "MC_LOCK"       },
 508         { MC_LOCKAS,    "MC_LOCKAS"     },
 509         { MC_SYNC,      "MC_SYNC"       },
 510         { MC_UNLOCK,    "MC_UNLOCK"     },
 511         { MC_UNLOCKAS,  "MC_UNLOCKAS"   },
 512         { 0,            NULL            },
 513 };
 514
 515 static const struct xlat mctl_lockas[] = {
 516         { MCL_CURRENT,  "MCL_CURRENT"   },
 517         { MCL_FUTURE,   "MCL_FUTURE"    },
 518         { 0,            NULL            },
 519 };
 520
 521 int
 522 sys_mctl(struct tcb *tcp)
 523 {
 524         int arg, function;
 525
 526         if (entering(tcp)) {
 527                 /* addr */
 528                 tprintf("%#lx", tcp->u_arg[0]);
 529                 /* len */
 530                 tprintf(", %lu, ", tcp->u_arg[1]);
 531                 /* function */
 532                 function = tcp->u_arg[2];
 533                 printflags(mctl_funcs, function, "MC_???");
 534                 /* arg */
 535                 arg = tcp->u_arg[3];
 536                 tprintf(", ");
 537                 switch (function) {
 538                 case MC_SYNC:
 539                         printflags(mctl_sync, arg, "MS_???");
 540                         break;
 541                 case MC_LOCKAS:
 542                         printflags(mctl_lockas, arg, "MCL_???");
 543                         break;
 544                 default:
 545                         tprintf("%#x", arg);
 546                         break;
 547                 }
 548         }
 549         return 0;
 550 }
 551
 552 #endif /* MC_SYNC */
 553
 554 int
 555 sys_mincore(struct tcb *tcp)
 556 {
 557         unsigned long i, len;
 558         char *vec = NULL;
 559
 560         if (entering(tcp)) {
 561                 tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
 562         } else {
 563                 len = tcp->u_arg[1];
 564                 if (syserror(tcp) || tcp->u_arg[2] == 0 ||
 565                         (vec = malloc(len)) == NULL ||
 566                         umoven(tcp, tcp->u_arg[2], len, vec) < 0)
 567                         tprintf("%#lx", tcp->u_arg[2]);
 568                 else {
 569                         tprintf("[");
 570                         for (i = 0; i < len; i++) {
 571                                 if (abbrev(tcp) && i >= max_strlen) {
 572                                         tprintf("...");
 573                                         break;
 574                                 }
 575                                 tprintf((vec[i] & 1) ? "1" : "0");
 576                         }
 577                         tprintf("]");
 578                 }
 579                 if (vec)
 580                         free(vec);
 581         }
 582         return 0;
 583 }
 584
 585 #if defined(ALPHA) || defined(FREEBSD) || defined(IA64) || defined(SUNOS4) || defined(SVR4) || defined(SPARC) || defined(SPARC64)
 586 int
 587 sys_getpagesize(struct tcb *tcp)
 588 {
 589         if (exiting(tcp))
 590                 return RVAL_HEX;
 591         return 0;
 592 }
 593 #endif /* ALPHA || FREEBSD || IA64 || SUNOS4 || SVR4 */
 594
 595 #if defined(LINUX) && defined(__i386__)
 596 void
 597 print_ldt_entry(struct modify_ldt_ldt_s *ldt_entry)
 598 {
 599         tprintf("base_addr:%#08lx, "
 600                 "limit:%d, "
 601                 "seg_32bit:%d, "
 602                 "contents:%d, "
 603                 "read_exec_only:%d, "
 604                 "limit_in_pages:%d, "
 605                 "seg_not_present:%d, "
 606                 "useable:%d}",
 607                 (long) ldt_entry->base_addr,
 608                 ldt_entry->limit,
 609                 ldt_entry->seg_32bit,
 610                 ldt_entry->contents,
 611                 ldt_entry->read_exec_only,
 612                 ldt_entry->limit_in_pages,
 613                 ldt_entry->seg_not_present,
 614                 ldt_entry->useable);
 615 }
 616
 617 int
 618 sys_modify_ldt(struct tcb *tcp)
 619 {
 620         if (entering(tcp)) {
 621                 struct modify_ldt_ldt_s copy;
 622                 tprintf("%ld", tcp->u_arg[0]);
 623                 if (tcp->u_arg[1] == 0
 624                                 || tcp->u_arg[2] != sizeof(struct modify_ldt_ldt_s)
 625                                 || umove(tcp, tcp->u_arg[1], &copy) == -1)
 626                         tprintf(", %lx", tcp->u_arg[1]);
 627                 else {
 628                         tprintf(", {entry_number:%d, ", copy.entry_number);
 629                         if (!verbose(tcp))
 630                                 tprintf("...}");
 631                         else {
 632                                 print_ldt_entry(&copy);
 633                         }
 634                 }
 635                 tprintf(", %lu", tcp->u_arg[2]);
 636         }
 637         return 0;
 638 }
 639
 640 int
 641 sys_set_thread_area(struct tcb *tcp)
 642 {
 643         struct modify_ldt_ldt_s copy;
 644         if (entering(tcp)) {
 645                 if (umove(tcp, tcp->u_arg[0], &copy) != -1) {
 646                         if (copy.entry_number == -1)
 647                                 tprintf("{entry_number:%d -> ",
 648                                         copy.entry_number);
 649                         else
 650                                 tprintf("{entry_number:");
 651                 }
 652         } else {
 653                 if (umove(tcp, tcp->u_arg[0], &copy) != -1) {
 654                         tprintf("%d, ", copy.entry_number);
 655                         if (!verbose(tcp))
 656                                 tprintf("...}");
 657                         else {
 658                                 print_ldt_entry(&copy);
 659                         }
 660                 } else {
 661                         tprintf("%lx", tcp->u_arg[0]);
 662                 }
 663         }
 664         return 0;
 665
 666 }
 667
 668 int
 669 sys_get_thread_area(struct tcb *tcp)
 670 {
 671         struct modify_ldt_ldt_s copy;
 672         if (exiting(tcp)) {
 673                 if (umove(tcp, tcp->u_arg[0], &copy) != -1) {
 674                         tprintf("{entry_number:%d, ", copy.entry_number);
 675                         if (!verbose(tcp))
 676                                 tprintf("...}");
 677                         else {
 678                                 print_ldt_entry(&copy);
 679                         }
 680                 } else {
 681                         tprintf("%lx", tcp->u_arg[0]);
 682                 }
 683         }
 684         return 0;
 685
 686 }
 687 #endif /* LINUX && __i386__ */
 688
 689 #if defined(LINUX) && defined(M68K)
 690
 691 int
 692 sys_set_thread_area(struct tcb *tcp)
 693 {
 694         if (entering(tcp))
 695                 tprintf("%#lx", tcp->u_arg[0]);
 696         return 0;
 697
 698 }
 699
 700 int
 701 sys_get_thread_area(struct tcb *tcp)
 702 {
 703         return RVAL_HEX;
 704 }
 705 #endif
 706
 707 #if defined(LINUX)
 708 int
 709 sys_remap_file_pages(struct tcb *tcp)
 710 {
 711         if (entering(tcp)) {
 712                 tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
 713                 printflags(mmap_prot, tcp->u_arg[2], "PROT_???");
 714                 tprintf(", %lu, ", tcp->u_arg[3]);
 715 #ifdef MAP_TYPE
 716                 printxval(mmap_flags, tcp->u_arg[4] & MAP_TYPE, "MAP_???");
 717                 addflags(mmap_flags, tcp->u_arg[4] & ~MAP_TYPE);
 718 #else
 719                 printflags(mmap_flags, tcp->u_arg[4], "MAP_???");
 720 #endif
 721         }
 722         return 0;
 723 }
 724
 725
 726 #define MPOL_DEFAULT    0
 727 #define MPOL_PREFERRED  1
 728 #define MPOL_BIND       2
 729 #define MPOL_INTERLEAVE 3
 730
 731 #define MPOL_F_NODE     (1<<0)
 732 #define MPOL_F_ADDR     (1<<1)
 733
 734 #define MPOL_MF_STRICT  (1<<0)
 735 #define MPOL_MF_MOVE    (1<<1)
 736 #define MPOL_MF_MOVE_ALL (1<<2)
 737
 738
 739 static const struct xlat policies[] = {
 740         { MPOL_DEFAULT,         "MPOL_DEFAULT"          },
 741         { MPOL_PREFERRED,       "MPOL_PREFERRED"        },
 742         { MPOL_BIND,            "MPOL_BIND"             },
 743         { MPOL_INTERLEAVE,      "MPOL_INTERLEAVE"       },
 744         { 0,                    NULL                    }
 745 };
 746
 747 static const struct xlat mbindflags[] = {
 748         { MPOL_MF_STRICT,       "MPOL_MF_STRICT"        },
 749         { MPOL_MF_MOVE,         "MPOL_MF_MOVE"          },
 750         { MPOL_MF_MOVE_ALL,     "MPOL_MF_MOVE_ALL"      },
 751         { 0,                    NULL                    }
 752 };
 753
 754 static const struct xlat mempolicyflags[] = {
 755         { MPOL_F_NODE,          "MPOL_F_NODE"           },
 756         { MPOL_F_ADDR,          "MPOL_F_ADDR"           },
 757         { 0,                    NULL                    }
 758 };
 759
 760 static const struct xlat move_pages_flags[] = {
 761         { MPOL_MF_MOVE,         "MPOL_MF_MOVE"          },
 762         { MPOL_MF_MOVE_ALL,     "MPOL_MF_MOVE_ALL"      },
 763         { 0,                    NULL                    }
 764 };
 765
 766
 767 static void
 768 get_nodes(struct tcb *tcp, unsigned long ptr, unsigned long maxnodes, int err)
 769 {
 770         unsigned long nlongs, size, end;
 771
 772         nlongs = (maxnodes + 8 * sizeof(long) - 1) / (8 * sizeof(long));
 773         size = nlongs * sizeof(long);
 774         end = ptr + size;
 775         if (nlongs == 0 || ((err || verbose(tcp)) && (size * 8 == maxnodes)
 776                             && (end > ptr))) {
 777                 unsigned long n, cur, abbrev_end;
 778                 int failed = 0;
 779
 780                 if (abbrev(tcp)) {
 781                         abbrev_end = ptr + max_strlen * sizeof(long);
 782                         if (abbrev_end < ptr)
 783                                 abbrev_end = end;
 784                 } else {
 785                         abbrev_end = end;
 786                 }
 787                 tprintf(", {");
 788                 for (cur = ptr; cur < end; cur += sizeof(long)) {
 789                         if (cur > ptr)
 790                                 tprintf(", ");
 791                         if (cur >= abbrev_end) {
 792                                 tprintf("...");
 793                                 break;
 794                         }
 795                         if (umoven(tcp, cur, sizeof(n), (char *) &n) < 0) {
 796                                 tprintf("?");
 797                                 failed = 1;
 798                                 break;
 799                         }
 800                         tprintf("%#0*lx", (int) sizeof(long) * 2 + 2, n);
 801                 }
 802                 tprintf("}");
 803                 if (failed)
 804                         tprintf(" %#lx", ptr);
 805         } else
 806                 tprintf(", %#lx", ptr);
 807         tprintf(", %lu", maxnodes);
 808 }
 809
 810 int
 811 sys_mbind(struct tcb *tcp)
 812 {
 813         if (entering(tcp)) {
 814                 tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
 815                 printxval(policies, tcp->u_arg[2], "MPOL_???");
 816                 get_nodes(tcp, tcp->u_arg[3], tcp->u_arg[4], 0);
 817                 tprintf(", ");
 818                 printflags(mbindflags, tcp->u_arg[5], "MPOL_???");
 819         }
 820         return 0;
 821 }
 822
 823 int
 824 sys_set_mempolicy(struct tcb *tcp)
 825 {
 826         if (entering(tcp)) {
 827                 printxval(policies, tcp->u_arg[0], "MPOL_???");
 828                 get_nodes(tcp, tcp->u_arg[1], tcp->u_arg[2], 0);
 829         }
 830         return 0;
 831 }
 832
 833 int
 834 sys_get_mempolicy(struct tcb *tcp)
 835 {
 836         if (exiting(tcp)) {
 837                 int pol;
 838                 if (tcp->u_arg[0] == 0)
 839                         tprintf("NULL");
 840                 else if (syserror(tcp) || umove(tcp, tcp->u_arg[0], &pol) < 0)
 841                         tprintf("%#lx", tcp->u_arg[0]);
 842                 else
 843                         printxval(policies, pol, "MPOL_???");
 844                 get_nodes(tcp, tcp->u_arg[1], tcp->u_arg[2], syserror(tcp));
 845                 tprintf(", %#lx, ", tcp->u_arg[3]);
 846                 printflags(mempolicyflags, tcp->u_arg[4], "MPOL_???");
 847         }
 848         return 0;
 849 }
 850
 851 int
 852 sys_move_pages(struct tcb *tcp)
 853 {
 854         if (entering(tcp)) {
 855                 unsigned long npages = tcp->u_arg[1];
 856                 tprintf("%ld, %lu, ", tcp->u_arg[0], npages);
 857                 if (tcp->u_arg[2] == 0)
 858                         tprintf("NULL, ");
 859                 else {
 860                         int i;
 861                         long puser = tcp->u_arg[2];
 862                         tprintf("{");
 863                         for (i = 0; i < npages; ++i) {
 864                                 void *p;
 865                                 if (i > 0)
 866                                         tprintf(", ");
 867                                 if (umove(tcp, puser, &p) < 0) {
 868                                         tprintf("???");
 869                                         break;
 870                                 }
 871                                 tprintf("%p", p);
 872                                 puser += sizeof(void *);
 873                         }
 874                         tprintf("}, ");
 875                 }
 876                 if (tcp->u_arg[3] == 0)
 877                         tprintf("NULL, ");
 878                 else {
 879                         int i;
 880                         long nodeuser = tcp->u_arg[3];
 881                         tprintf("{");
 882                         for (i = 0; i < npages; ++i) {
 883                                 int node;
 884                                 if (i > 0)
 885                                         tprintf(", ");
 886                                 if (umove(tcp, nodeuser, &node) < 0) {
 887                                         tprintf("???");
 888                                         break;
 889                                 }
 890                                 tprintf("%#x", node);
 891                                 nodeuser += sizeof(int);
 892                         }
 893                         tprintf("}, ");
 894                 }
 895         }
 896         if (exiting(tcp)) {
 897                 unsigned long npages = tcp->u_arg[1];
 898                 if (tcp->u_arg[4] == 0)
 899                         tprintf("NULL, ");
 900                 else {
 901                         int i;
 902                         long statususer = tcp->u_arg[4];
 903                         tprintf("{");
 904                         for (i = 0; i < npages; ++i) {
 905                                 int status;
 906                                 if (i > 0)
 907                                         tprintf(", ");
 908                                 if (umove(tcp, statususer, &status) < 0) {
 909                                         tprintf("???");
 910                                         break;
 911                                 }
 912                                 tprintf("%#x", status);
 913                                 statususer += sizeof(int);
 914                         }
 915                         tprintf("}, ");
 916                 }
 917                 printflags(move_pages_flags, tcp->u_arg[5], "MPOL_???");
 918         }
 919         return 0;
 920 }
 921 #endif
 922
 923 #if defined(LINUX) && defined(POWERPC)
 924 int
 925 sys_subpage_prot(struct tcb *tcp)
 926 {
 927         if (entering(tcp)) {
 928                 unsigned long cur, end, abbrev_end, entries;
 929                 unsigned int entry;
 930
 931                 tprintf("%#lx, %#lx, ", tcp->u_arg[0], tcp->u_arg[1]);
 932                 entries = tcp->u_arg[1] >> 16;
 933                 if (!entries || !tcp->u_arg[2]) {
 934                         tprintf("{}");
 935                         return 0;
 936                 }
 937                 cur = tcp->u_arg[2];
 938                 end = cur + (sizeof(int) * entries);
 939                 if (!verbose(tcp) || end < tcp->u_arg[2]) {
 940                         tprintf("%#lx", tcp->u_arg[2]);
 941                         return 0;
 942                 }
 943                 if (abbrev(tcp)) {
 944                         abbrev_end = cur + (sizeof(int) * max_strlen);
 945                         if (abbrev_end > end)
 946                                 abbrev_end = end;
 947                 }
 948                 else
 949                         abbrev_end = end;
 950                 tprintf("{");
 951                 for (; cur < end; cur += sizeof(int)) {
 952                         if (cur > tcp->u_arg[2])
 953                                 tprintf(", ");
 954                         if (cur >= abbrev_end) {
 955                                 tprintf("...");
 956                                 break;
 957                         }
 958                         if (umove(tcp, cur, &entry) < 0) {
 959                                 tprintf("??? [%#lx]", cur);
 960                                 break;
 961                         }
 962                         else
 963                                 tprintf("%#08x", entry);
 964                 }
 965                 tprintf("}");
 966         }
 967
 968         return 0;
 969 }
 970 #endif