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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
  33 #include "defs.h"
  34 #include <asm/mman.h>
  35 #include <sys/mman.h>
  36 #if defined(I386)
  37 # include <asm/ldt.h>
  38 # ifdef HAVE_STRUCT_USER_DESC
  39 #  define modify_ldt_ldt_s user_desc
  40 # endif
  41 #endif
  42
  43 static unsigned long
  44 get_pagesize()
  45 {
  46         static unsigned long pagesize;
  47
  48         if (!pagesize)
  49                 pagesize = sysconf(_SC_PAGESIZE);
  50         return pagesize;
  51 }
  52
  53 int
  54 sys_brk(struct tcb *tcp)
  55 {
  56         if (entering(tcp)) {
  57                 tprintf("%#lx", tcp->u_arg[0]);
  58         }
  59         return RVAL_HEX;
  60 }
  61
  62 static const struct xlat mmap_prot[] = {
  63         { PROT_NONE,    "PROT_NONE",    },
  64         { PROT_READ,    "PROT_READ"     },
  65         { PROT_WRITE,   "PROT_WRITE"    },
  66         { PROT_EXEC,    "PROT_EXEC"     },
  67 #ifdef PROT_SEM
  68         { PROT_SEM,     "PROT_SEM"      },
  69 #endif
  70 #ifdef PROT_GROWSDOWN
  71         { PROT_GROWSDOWN,"PROT_GROWSDOWN"},
  72 #endif
  73 #ifdef PROT_GROWSUP
  74         { PROT_GROWSUP, "PROT_GROWSUP"  },
  75 #endif
  76 #ifdef PROT_SAO
  77         { PROT_SAO,     "PROT_SAO"      },
  78 #endif
  79         { 0,            NULL            },
  80 };
  81
  82 static const struct xlat mmap_flags[] = {
  83         { MAP_SHARED,   "MAP_SHARED"    },
  84         { MAP_PRIVATE,  "MAP_PRIVATE"   },
  85         { MAP_FIXED,    "MAP_FIXED"     },
  86 #ifdef MAP_ANONYMOUS
  87         { MAP_ANONYMOUS,"MAP_ANONYMOUS" },
  88 #endif
  89 #ifdef MAP_32BIT
  90         { MAP_32BIT,    "MAP_32BIT"     },
  91 #endif
  92 #ifdef MAP_RENAME
  93         { MAP_RENAME,   "MAP_RENAME"    },
  94 #endif
  95 #ifdef MAP_NORESERVE
  96         { MAP_NORESERVE,"MAP_NORESERVE" },
  97 #endif
  98 #ifdef MAP_POPULATE
  99         { MAP_POPULATE, "MAP_POPULATE" },
 100 #endif
 101 #ifdef MAP_NONBLOCK
 102         { MAP_NONBLOCK, "MAP_NONBLOCK" },
 103 #endif
 104         /*
 105          * XXX - this was introduced in SunOS 4.x to distinguish between
 106          * the old pre-4.x "mmap()", which:
 107          *
 108          *      only let you map devices with an "mmap" routine (e.g.,
 109          *      frame buffers) in;
 110          *
 111          *      required you to specify the mapping address;
 112          *
 113          *      returned 0 on success and -1 on failure;
 114          *
 115          * memory and which, and the 4.x "mmap()" which:
 116          *
 117          *      can map plain files;
 118          *
 119          *      can be asked to pick where to map the file;
 120          *
 121          *      returns the address where it mapped the file on success
 122          *      and -1 on failure.
 123          *
 124          * It's not actually used in source code that calls "mmap()"; the
 125          * "mmap()" routine adds it for you.
 126          *
 127          * It'd be nice to come up with some way of eliminating it from
 128          * the flags, e.g. reporting calls *without* it as "old_mmap()"
 129          * and calls with it as "mmap()".
 130          */
 131 #ifdef _MAP_NEW
 132         { _MAP_NEW,     "_MAP_NEW"      },
 133 #endif
 134 #ifdef MAP_GROWSDOWN
 135         { MAP_GROWSDOWN,"MAP_GROWSDOWN" },
 136 #endif
 137 #ifdef MAP_DENYWRITE
 138         { MAP_DENYWRITE,"MAP_DENYWRITE" },
 139 #endif
 140 #ifdef MAP_EXECUTABLE
 141         { MAP_EXECUTABLE,"MAP_EXECUTABLE"},
 142 #endif
 143 #ifdef MAP_INHERIT
 144         { MAP_INHERIT,  "MAP_INHERIT"   },
 145 #endif
 146 #ifdef MAP_FILE
 147         { MAP_FILE,     "MAP_FILE"      },
 148 #endif
 149 #ifdef MAP_LOCKED
 150         { MAP_LOCKED,   "MAP_LOCKED"    },
 151 #endif
 152         /* FreeBSD ones */
 153 #if defined(MAP_ANON) && (!defined(MAP_ANONYMOUS) || MAP_ANON != MAP_ANONYMOUS)
 154         { MAP_ANON,     "MAP_ANON"      },
 155 #endif
 156 #ifdef MAP_HASSEMAPHORE
 157         { MAP_HASSEMAPHORE,"MAP_HASSEMAPHORE"},
 158 #endif
 159 #ifdef MAP_STACK
 160         { MAP_STACK,    "MAP_STACK"     },
 161 #endif
 162 #if defined MAP_UNINITIALIZED && MAP_UNINITIALIZED > 0
 163         { MAP_UNINITIALIZED,"MAP_UNINITIALIZED"},
 164 #endif
 165 #ifdef MAP_NOSYNC
 166         { MAP_NOSYNC,   "MAP_NOSYNC"    },
 167 #endif
 168 #ifdef MAP_NOCORE
 169         { MAP_NOCORE,   "MAP_NOCORE"    },
 170 #endif
 171 #ifdef TILE
 172         { MAP_CACHE_NO_LOCAL, "MAP_CACHE_NO_LOCAL" },
 173         { MAP_CACHE_NO_L2, "MAP_CACHE_NO_L2" },
 174         { MAP_CACHE_NO_L1, "MAP_CACHE_NO_L1" },
 175 #endif
 176         { 0,            NULL            },
 177 };
 178
 179 #ifdef TILE
 180 static int
 181 addtileflags(long flags)
 182 {
 183         long home = flags & _MAP_CACHE_MKHOME(_MAP_CACHE_HOME_MASK);
 184         flags &= ~_MAP_CACHE_MKHOME(_MAP_CACHE_HOME_MASK);
 185
 186         if (flags & _MAP_CACHE_INCOHERENT) {
 187                 flags &= ~_MAP_CACHE_INCOHERENT;
 188                 if (home == MAP_CACHE_HOME_NONE) {
 189                         tprints("|MAP_CACHE_INCOHERENT");
 190                         return flags;
 191                 }
 192                 tprints("|_MAP_CACHE_INCOHERENT");
 193         }
 194
 195         switch (home) {
 196         case 0: break;
 197         case MAP_CACHE_HOME_HERE: tprints("|MAP_CACHE_HOME_HERE"); break;
 198         case MAP_CACHE_HOME_NONE: tprints("|MAP_CACHE_HOME_NONE"); break;
 199         case MAP_CACHE_HOME_SINGLE: tprints("|MAP_CACHE_HOME_SINGLE"); break;
 200         case MAP_CACHE_HOME_TASK: tprints("|MAP_CACHE_HOME_TASK"); break;
 201         case MAP_CACHE_HOME_HASH: tprints("|MAP_CACHE_HOME_HASH"); break;
 202         default:
 203                 tprintf("|MAP_CACHE_HOME(%ld)",
 204                         (home >> _MAP_CACHE_HOME_SHIFT) );
 205                 break;
 206         }
 207
 208         return flags;
 209 }
 210 #endif
 211
 212 static int
 213 print_mmap(struct tcb *tcp, long *u_arg, unsigned long long offset)
 214 {
 215         if (entering(tcp)) {
 216                 /* addr */
 217                 if (!u_arg[0])
 218                         tprints("NULL, ");
 219                 else
 220                         tprintf("%#lx, ", u_arg[0]);
 221                 /* len */
 222                 tprintf("%lu, ", u_arg[1]);
 223                 /* prot */
 224                 printflags(mmap_prot, u_arg[2], "PROT_???");
 225                 tprints(", ");
 226                 /* flags */
 227 #ifdef MAP_TYPE
 228                 printxval(mmap_flags, u_arg[3] & MAP_TYPE, "MAP_???");
 229 # ifdef TILE
 230                 addflags(mmap_flags, addtileflags(u_arg[3] & ~MAP_TYPE));
 231 # else
 232                 addflags(mmap_flags, u_arg[3] & ~MAP_TYPE);
 233 # endif
 234 #else
 235                 printflags(mmap_flags, u_arg[3], "MAP_???");
 236 #endif
 237                 tprints(", ");
 238                 /* fd */
 239                 printfd(tcp, u_arg[4]);
 240                 /* offset */
 241                 tprintf(", %#llx", offset);
 242         }
 243         return RVAL_HEX;
 244 }
 245
 246 /* Syscall name<->function correspondence is messed up on many arches.
 247  * For example:
 248  * i386 has __NR_mmap == 90, and it is "old mmap", and
 249  * also it has __NR_mmap2 == 192, which is a "new mmap with page offsets".
 250  * But x86_64 has just one __NR_mmap == 9, a "new mmap with byte offsets".
 251  * Confused? Me too!
 252  */
 253
 254 /* Params are pointed to by u_arg[0], offset is in bytes */
 255 int
 256 sys_old_mmap(struct tcb *tcp)
 257 {
 258         long u_arg[6];
 259 #if defined(IA64)
 260         /*
 261          * IA64 processes never call this routine, they only use the
 262          * new 'sys_mmap' interface. Only IA32 processes come here.
 263          */
 264         int i;
 265         unsigned narrow_arg[6];
 266         if (umoven(tcp, tcp->u_arg[0], sizeof(narrow_arg), (char *) narrow_arg) == -1)
 267                 return 0;
 268         for (i = 0; i < 6; i++)
 269                 u_arg[i] = (unsigned long) narrow_arg[i];
 270 #elif defined(X86_64)
 271         /* We are here only in personality 1 (i386) */
 272         int i;
 273         unsigned narrow_arg[6];
 274         if (umoven(tcp, tcp->u_arg[0], sizeof(narrow_arg), (char *) narrow_arg) == -1)
 275                 return 0;
 276         for (i = 0; i < 6; ++i)
 277                 u_arg[i] = (unsigned long) narrow_arg[i];
 278 #else
 279         if (umoven(tcp, tcp->u_arg[0], sizeof(u_arg), (char *) u_arg) == -1)
 280                 return 0;
 281 #endif
 282         return print_mmap(tcp, u_arg, (unsigned long) u_arg[5]);
 283 }
 284
 285 #if defined(S390)
 286 /* Params are pointed to by u_arg[0], offset is in pages */
 287 int
 288 sys_old_mmap_pgoff(struct tcb *tcp)
 289 {
 290         long u_arg[5];
 291         int i;
 292         unsigned narrow_arg[6];
 293         unsigned long long offset;
 294         if (umoven(tcp, tcp->u_arg[0], sizeof(narrow_arg), (char *) narrow_arg) == -1)
 295                 return 0;
 296         for (i = 0; i < 5; i++)
 297                 u_arg[i] = (unsigned long) narrow_arg[i];
 298         offset = narrow_arg[5];
 299         offset *= get_pagesize();
 300         return print_mmap(tcp, u_arg, offset);
 301 }
 302 #endif
 303
 304 /* Params are passed directly, offset is in bytes */
 305 int
 306 sys_mmap(struct tcb *tcp)
 307 {
 308         unsigned long long offset = (unsigned long) tcp->u_arg[5];
 309 #if defined(LINUX_MIPSN32) || defined(X32)
 310         /* Try test/x32_mmap.c */
 311         offset = tcp->ext_arg[5];
 312 #endif
 313         /* Example of kernel-side handling of this variety of mmap:
 314          * arch/x86/kernel/sys_x86_64.c::SYSCALL_DEFINE6(mmap, ...) calls
 315          * sys_mmap_pgoff(..., off >> PAGE_SHIFT); i.e. off is in bytes,
 316          * since the above code converts off to pages.
 317          */
 318         return print_mmap(tcp, tcp->u_arg, offset);
 319 }
 320
 321 /* Params are passed directly, offset is in pages */
 322 int
 323 sys_mmap_pgoff(struct tcb *tcp)
 324 {
 325         /* Try test/mmap_offset_decode.c */
 326         unsigned long long offset;
 327         offset = (unsigned long) tcp->u_arg[5];
 328         offset *= get_pagesize();
 329         return print_mmap(tcp, tcp->u_arg, offset);
 330 }
 331
 332 /* Params are passed directly, offset is in 4k units */
 333 int
 334 sys_mmap_4koff(struct tcb *tcp)
 335 {
 336         unsigned long long offset;
 337         offset = (unsigned long) tcp->u_arg[5];
 338         offset <<= 12;
 339         return print_mmap(tcp, tcp->u_arg, offset);
 340 }
 341
 342 int
 343 sys_munmap(struct tcb *tcp)
 344 {
 345         if (entering(tcp)) {
 346                 tprintf("%#lx, %lu",
 347                         tcp->u_arg[0], tcp->u_arg[1]);
 348         }
 349         return 0;
 350 }
 351
 352 int
 353 sys_mprotect(struct tcb *tcp)
 354 {
 355         if (entering(tcp)) {
 356                 tprintf("%#lx, %lu, ",
 357                         tcp->u_arg[0], tcp->u_arg[1]);
 358                 printflags(mmap_prot, tcp->u_arg[2], "PROT_???");
 359         }
 360         return 0;
 361 }
 362
 363 static const struct xlat mremap_flags[] = {
 364         { MREMAP_MAYMOVE,       "MREMAP_MAYMOVE"        },
 365 #ifdef MREMAP_FIXED
 366         { MREMAP_FIXED,         "MREMAP_FIXED"          },
 367 #endif
 368         { 0,                    NULL                    }
 369 };
 370
 371 int
 372 sys_mremap(struct tcb *tcp)
 373 {
 374         if (entering(tcp)) {
 375                 tprintf("%#lx, %lu, %lu, ", tcp->u_arg[0], tcp->u_arg[1],
 376                         tcp->u_arg[2]);
 377                 printflags(mremap_flags, tcp->u_arg[3], "MREMAP_???");
 378 #ifdef MREMAP_FIXED
 379                 if ((tcp->u_arg[3] & (MREMAP_MAYMOVE | MREMAP_FIXED)) ==
 380                     (MREMAP_MAYMOVE | MREMAP_FIXED))
 381                         tprintf(", %#lx", tcp->u_arg[4]);
 382 #endif
 383         }
 384         return RVAL_HEX;
 385 }
 386
 387 static const struct xlat madvise_cmds[] = {
 388 #ifdef MADV_NORMAL
 389         { MADV_NORMAL,          "MADV_NORMAL" },
 390 #endif
 391 #ifdef MADV_RANDOM
 392         { MADV_RANDOM,          "MADV_RANDOM" },
 393 #endif
 394 #ifdef MADV_SEQUENTIAL
 395         { MADV_SEQUENTIAL,      "MADV_SEQUENTIAL" },
 396 #endif
 397 #ifdef MADV_WILLNEED
 398         { MADV_WILLNEED,        "MADV_WILLNEED" },
 399 #endif
 400 #ifdef MADV_DONTNEED
 401         { MADV_DONTNEED,        "MADV_DONTNEED" },
 402 #endif
 403         { 0,                    NULL },
 404 };
 405
 406 int
 407 sys_madvise(struct tcb *tcp)
 408 {
 409         if (entering(tcp)) {
 410                 tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
 411                 printxval(madvise_cmds, tcp->u_arg[2], "MADV_???");
 412         }
 413         return 0;
 414 }
 415
 416 static const struct xlat mlockall_flags[] = {
 417 #ifdef MCL_CURRENT
 418         { MCL_CURRENT,  "MCL_CURRENT" },
 419 #endif
 420 #ifdef MCL_FUTURE
 421         { MCL_FUTURE,   "MCL_FUTURE" },
 422 #endif
 423         { 0,            NULL}
 424 };
 425
 426 int
 427 sys_mlockall(struct tcb *tcp)
 428 {
 429         if (entering(tcp)) {
 430                 printflags(mlockall_flags, tcp->u_arg[0], "MCL_???");
 431         }
 432         return 0;
 433 }
 434
 435 #ifdef MS_ASYNC
 436
 437 static const struct xlat mctl_sync[] = {
 438 #ifdef MS_SYNC
 439         { MS_SYNC,      "MS_SYNC"       },
 440 #endif
 441         { MS_ASYNC,     "MS_ASYNC"      },
 442         { MS_INVALIDATE,"MS_INVALIDATE" },
 443         { 0,            NULL            },
 444 };
 445
 446 int
 447 sys_msync(struct tcb *tcp)
 448 {
 449         if (entering(tcp)) {
 450                 /* addr */
 451                 tprintf("%#lx", tcp->u_arg[0]);
 452                 /* len */
 453                 tprintf(", %lu, ", tcp->u_arg[1]);
 454                 /* flags */
 455                 printflags(mctl_sync, tcp->u_arg[2], "MS_???");
 456         }
 457         return 0;
 458 }
 459
 460 #endif /* MS_ASYNC */
 461
 462 #ifdef MC_SYNC
 463
 464 static const struct xlat mctl_funcs[] = {
 465         { MC_LOCK,      "MC_LOCK"       },
 466         { MC_LOCKAS,    "MC_LOCKAS"     },
 467         { MC_SYNC,      "MC_SYNC"       },
 468         { MC_UNLOCK,    "MC_UNLOCK"     },
 469         { MC_UNLOCKAS,  "MC_UNLOCKAS"   },
 470         { 0,            NULL            },
 471 };
 472
 473 static const struct xlat mctl_lockas[] = {
 474         { MCL_CURRENT,  "MCL_CURRENT"   },
 475         { MCL_FUTURE,   "MCL_FUTURE"    },
 476         { 0,            NULL            },
 477 };
 478
 479 int
 480 sys_mctl(struct tcb *tcp)
 481 {
 482         int arg, function;
 483
 484         if (entering(tcp)) {
 485                 /* addr */
 486                 tprintf("%#lx", tcp->u_arg[0]);
 487                 /* len */
 488                 tprintf(", %lu, ", tcp->u_arg[1]);
 489                 /* function */
 490                 function = tcp->u_arg[2];
 491                 printflags(mctl_funcs, function, "MC_???");
 492                 /* arg */
 493                 arg = tcp->u_arg[3];
 494                 tprints(", ");
 495                 switch (function) {
 496                 case MC_SYNC:
 497                         printflags(mctl_sync, arg, "MS_???");
 498                         break;
 499                 case MC_LOCKAS:
 500                         printflags(mctl_lockas, arg, "MCL_???");
 501                         break;
 502                 default:
 503                         tprintf("%#x", arg);
 504                         break;
 505                 }
 506         }
 507         return 0;
 508 }
 509
 510 #endif /* MC_SYNC */
 511
 512 int
 513 sys_mincore(struct tcb *tcp)
 514 {
 515         if (entering(tcp)) {
 516                 tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
 517         } else {
 518                 unsigned long i, len;
 519                 char *vec = NULL;
 520
 521                 len = tcp->u_arg[1];
 522                 if (syserror(tcp) || tcp->u_arg[2] == 0 ||
 523                         (vec = malloc(len)) == NULL ||
 524                         umoven(tcp, tcp->u_arg[2], len, vec) < 0)
 525                         tprintf("%#lx", tcp->u_arg[2]);
 526                 else {
 527                         tprints("[");
 528                         for (i = 0; i < len; i++) {
 529                                 if (abbrev(tcp) && i >= max_strlen) {
 530                                         tprints("...");
 531                                         break;
 532                                 }
 533                                 tprints((vec[i] & 1) ? "1" : "0");
 534                         }
 535                         tprints("]");
 536                 }
 537                 free(vec);
 538         }
 539         return 0;
 540 }
 541
 542 #if defined(ALPHA) || defined(IA64) || defined(SPARC) || defined(SPARC64)
 543 int
 544 sys_getpagesize(struct tcb *tcp)
 545 {
 546         if (exiting(tcp))
 547                 return RVAL_HEX;
 548         return 0;
 549 }
 550 #endif
 551
 552 #if defined(I386)
 553 void
 554 print_ldt_entry(struct modify_ldt_ldt_s *ldt_entry)
 555 {
 556         tprintf("base_addr:%#08lx, "
 557                 "limit:%d, "
 558                 "seg_32bit:%d, "
 559                 "contents:%d, "
 560                 "read_exec_only:%d, "
 561                 "limit_in_pages:%d, "
 562                 "seg_not_present:%d, "
 563                 "useable:%d}",
 564                 (long) ldt_entry->base_addr,
 565                 ldt_entry->limit,
 566                 ldt_entry->seg_32bit,
 567                 ldt_entry->contents,
 568                 ldt_entry->read_exec_only,
 569                 ldt_entry->limit_in_pages,
 570                 ldt_entry->seg_not_present,
 571                 ldt_entry->useable);
 572 }
 573
 574 int
 575 sys_modify_ldt(struct tcb *tcp)
 576 {
 577         if (entering(tcp)) {
 578                 struct modify_ldt_ldt_s copy;
 579                 tprintf("%ld", tcp->u_arg[0]);
 580                 if (tcp->u_arg[1] == 0
 581                                 || tcp->u_arg[2] != sizeof(struct modify_ldt_ldt_s)
 582                                 || umove(tcp, tcp->u_arg[1], &copy) == -1)
 583                         tprintf(", %lx", tcp->u_arg[1]);
 584                 else {
 585                         tprintf(", {entry_number:%d, ", copy.entry_number);
 586                         if (!verbose(tcp))
 587                                 tprints("...}");
 588                         else {
 589                                 print_ldt_entry(&copy);
 590                         }
 591                 }
 592                 tprintf(", %lu", tcp->u_arg[2]);
 593         }
 594         return 0;
 595 }
 596
 597 int
 598 sys_set_thread_area(struct tcb *tcp)
 599 {
 600         struct modify_ldt_ldt_s copy;
 601         if (entering(tcp)) {
 602                 if (umove(tcp, tcp->u_arg[0], &copy) != -1) {
 603                         if (copy.entry_number == -1)
 604                                 tprintf("{entry_number:%d -> ",
 605                                         copy.entry_number);
 606                         else
 607                                 tprints("{entry_number:");
 608                 }
 609         } else {
 610                 if (umove(tcp, tcp->u_arg[0], &copy) != -1) {
 611                         tprintf("%d, ", copy.entry_number);
 612                         if (!verbose(tcp))
 613                                 tprints("...}");
 614                         else {
 615                                 print_ldt_entry(&copy);
 616                         }
 617                 } else {
 618                         tprintf("%lx", tcp->u_arg[0]);
 619                 }
 620         }
 621         return 0;
 622
 623 }
 624
 625 int
 626 sys_get_thread_area(struct tcb *tcp)
 627 {
 628         struct modify_ldt_ldt_s copy;
 629         if (exiting(tcp)) {
 630                 if (umove(tcp, tcp->u_arg[0], &copy) != -1) {
 631                         tprintf("{entry_number:%d, ", copy.entry_number);
 632                         if (!verbose(tcp))
 633                                 tprints("...}");
 634                         else {
 635                                 print_ldt_entry(&copy);
 636                         }
 637                 } else {
 638                         tprintf("%lx", tcp->u_arg[0]);
 639                 }
 640         }
 641         return 0;
 642
 643 }
 644 #endif /* I386 */
 645
 646 #if defined(M68K)
 647 int
 648 sys_set_thread_area(struct tcb *tcp)
 649 {
 650         if (entering(tcp))
 651                 tprintf("%#lx", tcp->u_arg[0]);
 652         return 0;
 653
 654 }
 655
 656 int
 657 sys_get_thread_area(struct tcb *tcp)
 658 {
 659         return RVAL_HEX;
 660 }
 661 #endif
 662
 663 int
 664 sys_remap_file_pages(struct tcb *tcp)
 665 {
 666         if (entering(tcp)) {
 667                 tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
 668                 printflags(mmap_prot, tcp->u_arg[2], "PROT_???");
 669                 tprintf(", %lu, ", tcp->u_arg[3]);
 670 #ifdef MAP_TYPE
 671                 printxval(mmap_flags, tcp->u_arg[4] & MAP_TYPE, "MAP_???");
 672                 addflags(mmap_flags, tcp->u_arg[4] & ~MAP_TYPE);
 673 #else
 674                 printflags(mmap_flags, tcp->u_arg[4], "MAP_???");
 675 #endif
 676         }
 677         return 0;
 678 }
 679
 680 #define MPOL_DEFAULT    0
 681 #define MPOL_PREFERRED  1
 682 #define MPOL_BIND       2
 683 #define MPOL_INTERLEAVE 3
 684
 685 #define MPOL_F_NODE     (1<<0)
 686 #define MPOL_F_ADDR     (1<<1)
 687
 688 #define MPOL_MF_STRICT  (1<<0)
 689 #define MPOL_MF_MOVE    (1<<1)
 690 #define MPOL_MF_MOVE_ALL (1<<2)
 691
 692 static const struct xlat policies[] = {
 693         { MPOL_DEFAULT,         "MPOL_DEFAULT"          },
 694         { MPOL_PREFERRED,       "MPOL_PREFERRED"        },
 695         { MPOL_BIND,            "MPOL_BIND"             },
 696         { MPOL_INTERLEAVE,      "MPOL_INTERLEAVE"       },
 697         { 0,                    NULL                    }
 698 };
 699
 700 static const struct xlat mbindflags[] = {
 701         { MPOL_MF_STRICT,       "MPOL_MF_STRICT"        },
 702         { MPOL_MF_MOVE,         "MPOL_MF_MOVE"          },
 703         { MPOL_MF_MOVE_ALL,     "MPOL_MF_MOVE_ALL"      },
 704         { 0,                    NULL                    }
 705 };
 706
 707 static const struct xlat mempolicyflags[] = {
 708         { MPOL_F_NODE,          "MPOL_F_NODE"           },
 709         { MPOL_F_ADDR,          "MPOL_F_ADDR"           },
 710         { 0,                    NULL                    }
 711 };
 712
 713 static const struct xlat move_pages_flags[] = {
 714         { MPOL_MF_MOVE,         "MPOL_MF_MOVE"          },
 715         { MPOL_MF_MOVE_ALL,     "MPOL_MF_MOVE_ALL"      },
 716         { 0,                    NULL                    }
 717 };
 718
 719 static void
 720 get_nodes(struct tcb *tcp, unsigned long ptr, unsigned long maxnodes, int err)
 721 {
 722         unsigned long nlongs, size, end;
 723
 724         nlongs = (maxnodes + 8 * sizeof(long) - 1) / (8 * sizeof(long));
 725         size = nlongs * sizeof(long);
 726         end = ptr + size;
 727         if (nlongs == 0 || ((err || verbose(tcp)) && (size * 8 == maxnodes)
 728                             && (end > ptr))) {
 729                 unsigned long n, cur, abbrev_end;
 730                 int failed = 0;
 731
 732                 if (abbrev(tcp)) {
 733                         abbrev_end = ptr + max_strlen * sizeof(long);
 734                         if (abbrev_end < ptr)
 735                                 abbrev_end = end;
 736                 } else {
 737                         abbrev_end = end;
 738                 }
 739                 tprints(", {");
 740                 for (cur = ptr; cur < end; cur += sizeof(long)) {
 741                         if (cur > ptr)
 742                                 tprints(", ");
 743                         if (cur >= abbrev_end) {
 744                                 tprints("...");
 745                                 break;
 746                         }
 747                         if (umoven(tcp, cur, sizeof(n), (char *) &n) < 0) {
 748                                 tprints("?");
 749                                 failed = 1;
 750                                 break;
 751                         }
 752                         tprintf("%#0*lx", (int) sizeof(long) * 2 + 2, n);
 753                 }
 754                 tprints("}");
 755                 if (failed)
 756                         tprintf(" %#lx", ptr);
 757         } else
 758                 tprintf(", %#lx", ptr);
 759         tprintf(", %lu", maxnodes);
 760 }
 761
 762 int
 763 sys_mbind(struct tcb *tcp)
 764 {
 765         if (entering(tcp)) {
 766                 tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
 767                 printxval(policies, tcp->u_arg[2], "MPOL_???");
 768                 get_nodes(tcp, tcp->u_arg[3], tcp->u_arg[4], 0);
 769                 tprints(", ");
 770                 printflags(mbindflags, tcp->u_arg[5], "MPOL_???");
 771         }
 772         return 0;
 773 }
 774
 775 int
 776 sys_set_mempolicy(struct tcb *tcp)
 777 {
 778         if (entering(tcp)) {
 779                 printxval(policies, tcp->u_arg[0], "MPOL_???");
 780                 get_nodes(tcp, tcp->u_arg[1], tcp->u_arg[2], 0);
 781         }
 782         return 0;
 783 }
 784
 785 int
 786 sys_get_mempolicy(struct tcb *tcp)
 787 {
 788         if (exiting(tcp)) {
 789                 int pol;
 790                 if (tcp->u_arg[0] == 0)
 791                         tprints("NULL");
 792                 else if (syserror(tcp) || umove(tcp, tcp->u_arg[0], &pol) < 0)
 793                         tprintf("%#lx", tcp->u_arg[0]);
 794                 else
 795                         printxval(policies, pol, "MPOL_???");
 796                 get_nodes(tcp, tcp->u_arg[1], tcp->u_arg[2], syserror(tcp));
 797                 tprintf(", %#lx, ", tcp->u_arg[3]);
 798                 printflags(mempolicyflags, tcp->u_arg[4], "MPOL_???");
 799         }
 800         return 0;
 801 }
 802
 803 int
 804 sys_migrate_pages(struct tcb *tcp)
 805 {
 806         if (entering(tcp)) {
 807                 tprintf("%ld, ", (long) (pid_t) tcp->u_arg[0]);
 808                 get_nodes(tcp, tcp->u_arg[2], tcp->u_arg[1], 0);
 809                 tprints(", ");
 810                 get_nodes(tcp, tcp->u_arg[3], tcp->u_arg[1], 0);
 811         }
 812         return 0;
 813 }
 814
 815 int
 816 sys_move_pages(struct tcb *tcp)
 817 {
 818         if (entering(tcp)) {
 819                 unsigned long npages = tcp->u_arg[1];
 820                 tprintf("%ld, %lu, ", tcp->u_arg[0], npages);
 821                 if (tcp->u_arg[2] == 0)
 822                         tprints("NULL, ");
 823                 else {
 824                         int i;
 825                         long puser = tcp->u_arg[2];
 826                         tprints("{");
 827                         for (i = 0; i < npages; ++i) {
 828                                 void *p;
 829                                 if (i > 0)
 830                                         tprints(", ");
 831                                 if (umove(tcp, puser, &p) < 0) {
 832                                         tprints("???");
 833                                         break;
 834                                 }
 835                                 tprintf("%p", p);
 836                                 puser += sizeof(void *);
 837                         }
 838                         tprints("}, ");
 839                 }
 840                 if (tcp->u_arg[3] == 0)
 841                         tprints("NULL, ");
 842                 else {
 843                         int i;
 844                         long nodeuser = tcp->u_arg[3];
 845                         tprints("{");
 846                         for (i = 0; i < npages; ++i) {
 847                                 int node;
 848                                 if (i > 0)
 849                                         tprints(", ");
 850                                 if (umove(tcp, nodeuser, &node) < 0) {
 851                                         tprints("???");
 852                                         break;
 853                                 }
 854                                 tprintf("%#x", node);
 855                                 nodeuser += sizeof(int);
 856                         }
 857                         tprints("}, ");
 858                 }
 859         }
 860         if (exiting(tcp)) {
 861                 unsigned long npages = tcp->u_arg[1];
 862                 if (tcp->u_arg[4] == 0)
 863                         tprints("NULL, ");
 864                 else {
 865                         int i;
 866                         long statususer = tcp->u_arg[4];
 867                         tprints("{");
 868                         for (i = 0; i < npages; ++i) {
 869                                 int status;
 870                                 if (i > 0)
 871                                         tprints(", ");
 872                                 if (umove(tcp, statususer, &status) < 0) {
 873                                         tprints("???");
 874                                         break;
 875                                 }
 876                                 tprintf("%#x", status);
 877                                 statususer += sizeof(int);
 878                         }
 879                         tprints("}, ");
 880                 }
 881                 printflags(move_pages_flags, tcp->u_arg[5], "MPOL_???");
 882         }
 883         return 0;
 884 }
 885
 886 #if defined(POWERPC)
 887 int
 888 sys_subpage_prot(struct tcb *tcp)
 889 {
 890         if (entering(tcp)) {
 891                 unsigned long cur, end, abbrev_end, entries;
 892                 unsigned int entry;
 893
 894                 tprintf("%#lx, %#lx, ", tcp->u_arg[0], tcp->u_arg[1]);
 895                 entries = tcp->u_arg[1] >> 16;
 896                 if (!entries || !tcp->u_arg[2]) {
 897                         tprints("{}");
 898                         return 0;
 899                 }
 900                 cur = tcp->u_arg[2];
 901                 end = cur + (sizeof(int) * entries);
 902                 if (!verbose(tcp) || end < tcp->u_arg[2]) {
 903                         tprintf("%#lx", tcp->u_arg[2]);
 904                         return 0;
 905                 }
 906                 if (abbrev(tcp)) {
 907                         abbrev_end = cur + (sizeof(int) * max_strlen);
 908                         if (abbrev_end > end)
 909                                 abbrev_end = end;
 910                 }
 911                 else
 912                         abbrev_end = end;
 913                 tprints("{");
 914                 for (; cur < end; cur += sizeof(int)) {
 915                         if (cur > tcp->u_arg[2])
 916                                 tprints(", ");
 917                         if (cur >= abbrev_end) {
 918                                 tprints("...");
 919                                 break;
 920                         }
 921                         if (umove(tcp, cur, &entry) < 0) {
 922                                 tprintf("??? [%#lx]", cur);
 923                                 break;
 924                         }
 925                         else
 926                                 tprintf("%#08x", entry);
 927                 }
 928                 tprints("}");
 929         }
 930
 931         return 0;
 932 }
 933 #endif