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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 #if defined(SH64)
  43 # include <asm/page.h>      /* for PAGE_SHIFT */
  44 #endif
  45
  46 #ifdef HAVE_LONG_LONG_OFF_T
  47 /*
  48  * Ugly hacks for systems that have a long long off_t
  49  */
  50 # define sys_mmap64     sys_mmap
  51 #endif
  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 #ifdef MAP_NOSYNC
 163         { MAP_NOSYNC,   "MAP_NOSYNC"    },
 164 #endif
 165 #ifdef MAP_NOCORE
 166         { MAP_NOCORE,   "MAP_NOCORE"    },
 167 #endif
 168 #ifdef TILE
 169         { MAP_CACHE_NO_LOCAL, "MAP_CACHE_NO_LOCAL" },
 170         { MAP_CACHE_NO_L2, "MAP_CACHE_NO_L2" },
 171         { MAP_CACHE_NO_L1, "MAP_CACHE_NO_L1" },
 172 #endif
 173         { 0,            NULL            },
 174 };
 175
 176 #ifdef TILE
 177 static int
 178 addtileflags(long flags)
 179 {
 180         long home = flags & _MAP_CACHE_MKHOME(_MAP_CACHE_HOME_MASK);
 181         flags &= ~_MAP_CACHE_MKHOME(_MAP_CACHE_HOME_MASK);
 182
 183         if (flags & _MAP_CACHE_INCOHERENT) {
 184                 flags &= ~_MAP_CACHE_INCOHERENT;
 185                 if (home == MAP_CACHE_HOME_NONE) {
 186                         tprints("|MAP_CACHE_INCOHERENT");
 187                         return flags;
 188                 }
 189                 tprints("|_MAP_CACHE_INCOHERENT");
 190         }
 191
 192         switch (home) {
 193         case 0: break;
 194         case MAP_CACHE_HOME_HERE: tprints("|MAP_CACHE_HOME_HERE"); break;
 195         case MAP_CACHE_HOME_NONE: tprints("|MAP_CACHE_HOME_NONE"); break;
 196         case MAP_CACHE_HOME_SINGLE: tprints("|MAP_CACHE_HOME_SINGLE"); break;
 197         case MAP_CACHE_HOME_TASK: tprints("|MAP_CACHE_HOME_TASK"); break;
 198         case MAP_CACHE_HOME_HASH: tprints("|MAP_CACHE_HOME_HASH"); break;
 199         default:
 200                 tprintf("|MAP_CACHE_HOME(%d)",
 201                         (home >> _MAP_CACHE_HOME_SHIFT) );
 202                 break;
 203         }
 204
 205         return flags;
 206 }
 207 #endif
 208
 209 #if !HAVE_LONG_LONG_OFF_T
 210 static int
 211 print_mmap(struct tcb *tcp, long *u_arg, long long offset)
 212 {
 213         if (entering(tcp)) {
 214                 /* addr */
 215                 if (!u_arg[0])
 216                         tprints("NULL, ");
 217                 else
 218                         tprintf("%#lx, ", u_arg[0]);
 219                 /* len */
 220                 tprintf("%lu, ", u_arg[1]);
 221                 /* prot */
 222                 printflags(mmap_prot, u_arg[2], "PROT_???");
 223                 tprints(", ");
 224                 /* flags */
 225 #ifdef MAP_TYPE
 226                 printxval(mmap_flags, u_arg[3] & MAP_TYPE, "MAP_???");
 227 #ifdef TILE
 228                 addflags(mmap_flags, addtileflags(u_arg[3] & ~MAP_TYPE));
 229 #else
 230                 addflags(mmap_flags, u_arg[3] & ~MAP_TYPE);
 231 #endif
 232 #else
 233                 printflags(mmap_flags, u_arg[3], "MAP_???");
 234 #endif
 235                 /* fd */
 236                 tprints(", ");
 237                 printfd(tcp, u_arg[4]);
 238                 /* offset */
 239                 tprintf(", %#llx", offset);
 240         }
 241         return RVAL_HEX;
 242 }
 243
 244 int sys_old_mmap(struct tcb *tcp)
 245 {
 246 #if defined(IA64)
 247         /*
 248          * IA64 processes never call this routine, they only use the
 249          * new `sys_mmap' interface.
 250          * For IA32 processes, this code converts the integer arguments
 251          * that they pushed onto the stack, into longs.
 252          *
 253          * Note that addresses with bit 31 set will be sign extended.
 254          * Fortunately, those addresses are not currently being generated
 255          * for IA32 processes so it's not a problem.
 256          */
 257         int i;
 258         long u_arg[6];
 259         int narrow_arg[6];
 260         if (umoven(tcp, tcp->u_arg[0], sizeof(narrow_arg), (char *) narrow_arg) == -1)
 261                 return 0;
 262         for (i = 0; i < 6; i++)
 263                 u_arg[i] = narrow_arg[i];
 264 #elif defined(SH) || defined(SH64)
 265         /* SH has always passed the args in registers */
 266         long *u_arg = tcp->u_arg;
 267 #else
 268         long u_arg[6];
 269 # if defined(X86_64)
 270         if (current_personality == 1) {
 271                 int i;
 272                 unsigned narrow_arg[6];
 273                 if (umoven(tcp, tcp->u_arg[0], sizeof(narrow_arg), (char *) narrow_arg) == -1)
 274                         return 0;
 275                 for (i = 0; i < 6; ++i)
 276                         u_arg[i] = narrow_arg[i];
 277         }
 278         else
 279 # endif
 280         if (umoven(tcp, tcp->u_arg[0], sizeof(u_arg), (char *) u_arg) == -1)
 281                 return 0;
 282 #endif /* other architectures */
 283
 284         return print_mmap(tcp, u_arg, u_arg[5]);
 285 }
 286
 287 int
 288 sys_mmap(struct tcb *tcp)
 289 {
 290         long long offset = tcp->u_arg[5];
 291
 292         /* FIXME: why only SH64? i386 mmap2 syscall ends up
 293          * in this function, but does not convert offset
 294          * from pages to bytes. See test/mmap_offset_decode.c
 295          * Why SH64 and i386 are handled differently?
 296          */
 297 #if defined(SH64)
 298         /*
 299          * Old mmap differs from new mmap in specifying the
 300          * offset in units of bytes rather than pages.  We
 301          * pretend it's in byte units so the user only ever
 302          * sees bytes in the printout.
 303          */
 304         offset <<= PAGE_SHIFT;
 305 #endif
 306 #if defined(LINUX_MIPSN32)
 307         offset = tcp->ext_arg[5];
 308 #endif
 309         return print_mmap(tcp, tcp->u_arg, offset);
 310 }
 311 #endif /* !HAVE_LONG_LONG_OFF_T */
 312
 313 #if _LFS64_LARGEFILE || HAVE_LONG_LONG_OFF_T
 314 /* TODO: comment which arches use this routine.
 315  * For one, does ALPHA on Linux use this??
 316  * From code it seems that it might use 7 or 8 registers,
 317  * which is strange - Linux syscalls can pass maximum of 6 parameters!
 318  */
 319 int
 320 sys_mmap64(struct tcb *tcp)
 321 {
 322         if (entering(tcp)) {
 323 #if defined(ALPHA)
 324                 long *u_arg = tcp->u_arg;
 325 #else
 326                 long u_arg[7];
 327                 if (umoven(tcp, tcp->u_arg[0], sizeof u_arg,
 328                                 (char *) u_arg) == -1)
 329                         return 0;
 330 #endif
 331                 /* addr */
 332                 if (!u_arg[0])
 333                         tprints("NULL, ");
 334                 else
 335                         tprintf("%#lx, ", u_arg[0]);
 336                 /* len */
 337                 tprintf("%lu, ", u_arg[1]);
 338                 /* prot */
 339                 printflags(mmap_prot, u_arg[2], "PROT_???");
 340                 tprints(", ");
 341                 /* flags */
 342 #ifdef MAP_TYPE
 343                 printxval(mmap_flags, u_arg[3] & MAP_TYPE, "MAP_???");
 344                 addflags(mmap_flags, u_arg[3] & ~MAP_TYPE);
 345 #else
 346                 printflags(mmap_flags, u_arg[3], "MAP_???");
 347 #endif
 348                 /* fd */
 349                 tprints(", ");
 350                 printfd(tcp, u_arg[4]);
 351                 /* offset */
 352 #if defined(ALPHA)
 353                 printllval(tcp, ", %#llx", 5);
 354 #else
 355                 /* NOTE: not verified that [5] and [6] should be used.
 356                  * It's possible that long long is 64-bit aligned in memory
 357                  * and we need to use [6] and [7] here instead:
 358                  */
 359                 tprintf(", %#llx", LONG_LONG(u_arg[5], u_arg[6]));
 360 #endif
 361         }
 362         return RVAL_HEX;
 363 }
 364 #endif /* _LFS64_LARGEFILE || HAVE_LONG_LONG_OFF_T */
 365
 366 int
 367 sys_munmap(struct tcb *tcp)
 368 {
 369         if (entering(tcp)) {
 370                 tprintf("%#lx, %lu",
 371                         tcp->u_arg[0], tcp->u_arg[1]);
 372         }
 373         return 0;
 374 }
 375
 376 int
 377 sys_mprotect(struct tcb *tcp)
 378 {
 379         if (entering(tcp)) {
 380                 tprintf("%#lx, %lu, ",
 381                         tcp->u_arg[0], tcp->u_arg[1]);
 382                 printflags(mmap_prot, tcp->u_arg[2], "PROT_???");
 383         }
 384         return 0;
 385 }
 386
 387 static const struct xlat mremap_flags[] = {
 388         { MREMAP_MAYMOVE,       "MREMAP_MAYMOVE"        },
 389 #ifdef MREMAP_FIXED
 390         { MREMAP_FIXED,         "MREMAP_FIXED"          },
 391 #endif
 392         { 0,                    NULL                    }
 393 };
 394
 395 int
 396 sys_mremap(struct tcb *tcp)
 397 {
 398         if (entering(tcp)) {
 399                 tprintf("%#lx, %lu, %lu, ", tcp->u_arg[0], tcp->u_arg[1],
 400                         tcp->u_arg[2]);
 401                 printflags(mremap_flags, tcp->u_arg[3], "MREMAP_???");
 402 #ifdef MREMAP_FIXED
 403                 if ((tcp->u_arg[3] & (MREMAP_MAYMOVE | MREMAP_FIXED)) ==
 404                     (MREMAP_MAYMOVE | MREMAP_FIXED))
 405                         tprintf(", %#lx", tcp->u_arg[4]);
 406 #endif
 407         }
 408         return RVAL_HEX;
 409 }
 410
 411 static const struct xlat madvise_cmds[] = {
 412 #ifdef MADV_NORMAL
 413         { MADV_NORMAL,          "MADV_NORMAL" },
 414 #endif
 415 #ifdef MADV_RANDOM
 416         { MADV_RANDOM,          "MADV_RANDOM" },
 417 #endif
 418 #ifdef MADV_SEQUENTIAL
 419         { MADV_SEQUENTIAL,      "MADV_SEQUENTIAL" },
 420 #endif
 421 #ifdef MADV_WILLNEED
 422         { MADV_WILLNEED,        "MADV_WILLNEED" },
 423 #endif
 424 #ifdef MADV_DONTNEED
 425         { MADV_DONTNEED,        "MADV_DONTNEED" },
 426 #endif
 427         { 0,                    NULL },
 428 };
 429
 430 int
 431 sys_madvise(struct tcb *tcp)
 432 {
 433         if (entering(tcp)) {
 434                 tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
 435                 printxval(madvise_cmds, tcp->u_arg[2], "MADV_???");
 436         }
 437         return 0;
 438 }
 439
 440 static const struct xlat mlockall_flags[] = {
 441 #ifdef MCL_CURRENT
 442         { MCL_CURRENT,  "MCL_CURRENT" },
 443 #endif
 444 #ifdef MCL_FUTURE
 445         { MCL_FUTURE,   "MCL_FUTURE" },
 446 #endif
 447         { 0,            NULL}
 448 };
 449
 450 int
 451 sys_mlockall(struct tcb *tcp)
 452 {
 453         if (entering(tcp)) {
 454                 printflags(mlockall_flags, tcp->u_arg[0], "MCL_???");
 455         }
 456         return 0;
 457 }
 458
 459 #ifdef MS_ASYNC
 460
 461 static const struct xlat mctl_sync[] = {
 462 #ifdef MS_SYNC
 463         { MS_SYNC,      "MS_SYNC"       },
 464 #endif
 465         { MS_ASYNC,     "MS_ASYNC"      },
 466         { MS_INVALIDATE,"MS_INVALIDATE" },
 467         { 0,            NULL            },
 468 };
 469
 470 int
 471 sys_msync(struct tcb *tcp)
 472 {
 473         if (entering(tcp)) {
 474                 /* addr */
 475                 tprintf("%#lx", tcp->u_arg[0]);
 476                 /* len */
 477                 tprintf(", %lu, ", tcp->u_arg[1]);
 478                 /* flags */
 479                 printflags(mctl_sync, tcp->u_arg[2], "MS_???");
 480         }
 481         return 0;
 482 }
 483
 484 #endif /* MS_ASYNC */
 485
 486 #ifdef MC_SYNC
 487
 488 static const struct xlat mctl_funcs[] = {
 489         { MC_LOCK,      "MC_LOCK"       },
 490         { MC_LOCKAS,    "MC_LOCKAS"     },
 491         { MC_SYNC,      "MC_SYNC"       },
 492         { MC_UNLOCK,    "MC_UNLOCK"     },
 493         { MC_UNLOCKAS,  "MC_UNLOCKAS"   },
 494         { 0,            NULL            },
 495 };
 496
 497 static const struct xlat mctl_lockas[] = {
 498         { MCL_CURRENT,  "MCL_CURRENT"   },
 499         { MCL_FUTURE,   "MCL_FUTURE"    },
 500         { 0,            NULL            },
 501 };
 502
 503 int
 504 sys_mctl(struct tcb *tcp)
 505 {
 506         int arg, function;
 507
 508         if (entering(tcp)) {
 509                 /* addr */
 510                 tprintf("%#lx", tcp->u_arg[0]);
 511                 /* len */
 512                 tprintf(", %lu, ", tcp->u_arg[1]);
 513                 /* function */
 514                 function = tcp->u_arg[2];
 515                 printflags(mctl_funcs, function, "MC_???");
 516                 /* arg */
 517                 arg = tcp->u_arg[3];
 518                 tprints(", ");
 519                 switch (function) {
 520                 case MC_SYNC:
 521                         printflags(mctl_sync, arg, "MS_???");
 522                         break;
 523                 case MC_LOCKAS:
 524                         printflags(mctl_lockas, arg, "MCL_???");
 525                         break;
 526                 default:
 527                         tprintf("%#x", arg);
 528                         break;
 529                 }
 530         }
 531         return 0;
 532 }
 533
 534 #endif /* MC_SYNC */
 535
 536 int
 537 sys_mincore(struct tcb *tcp)
 538 {
 539         if (entering(tcp)) {
 540                 tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
 541         } else {
 542                 unsigned long i, len;
 543                 char *vec = NULL;
 544
 545                 len = tcp->u_arg[1];
 546                 if (syserror(tcp) || tcp->u_arg[2] == 0 ||
 547                         (vec = malloc(len)) == NULL ||
 548                         umoven(tcp, tcp->u_arg[2], len, vec) < 0)
 549                         tprintf("%#lx", tcp->u_arg[2]);
 550                 else {
 551                         tprints("[");
 552                         for (i = 0; i < len; i++) {
 553                                 if (abbrev(tcp) && i >= max_strlen) {
 554                                         tprints("...");
 555                                         break;
 556                                 }
 557                                 tprints((vec[i] & 1) ? "1" : "0");
 558                         }
 559                         tprints("]");
 560                 }
 561                 free(vec);
 562         }
 563         return 0;
 564 }
 565
 566 #if defined(ALPHA) || defined(IA64) || defined(SPARC) || defined(SPARC64)
 567 int
 568 sys_getpagesize(struct tcb *tcp)
 569 {
 570         if (exiting(tcp))
 571                 return RVAL_HEX;
 572         return 0;
 573 }
 574 #endif
 575
 576 #if defined(I386)
 577 void
 578 print_ldt_entry(struct modify_ldt_ldt_s *ldt_entry)
 579 {
 580         tprintf("base_addr:%#08lx, "
 581                 "limit:%d, "
 582                 "seg_32bit:%d, "
 583                 "contents:%d, "
 584                 "read_exec_only:%d, "
 585                 "limit_in_pages:%d, "
 586                 "seg_not_present:%d, "
 587                 "useable:%d}",
 588                 (long) ldt_entry->base_addr,
 589                 ldt_entry->limit,
 590                 ldt_entry->seg_32bit,
 591                 ldt_entry->contents,
 592                 ldt_entry->read_exec_only,
 593                 ldt_entry->limit_in_pages,
 594                 ldt_entry->seg_not_present,
 595                 ldt_entry->useable);
 596 }
 597
 598 int
 599 sys_modify_ldt(struct tcb *tcp)
 600 {
 601         if (entering(tcp)) {
 602                 struct modify_ldt_ldt_s copy;
 603                 tprintf("%ld", tcp->u_arg[0]);
 604                 if (tcp->u_arg[1] == 0
 605                                 || tcp->u_arg[2] != sizeof(struct modify_ldt_ldt_s)
 606                                 || umove(tcp, tcp->u_arg[1], &copy) == -1)
 607                         tprintf(", %lx", tcp->u_arg[1]);
 608                 else {
 609                         tprintf(", {entry_number:%d, ", copy.entry_number);
 610                         if (!verbose(tcp))
 611                                 tprints("...}");
 612                         else {
 613                                 print_ldt_entry(&copy);
 614                         }
 615                 }
 616                 tprintf(", %lu", tcp->u_arg[2]);
 617         }
 618         return 0;
 619 }
 620
 621 int
 622 sys_set_thread_area(struct tcb *tcp)
 623 {
 624         struct modify_ldt_ldt_s copy;
 625         if (entering(tcp)) {
 626                 if (umove(tcp, tcp->u_arg[0], &copy) != -1) {
 627                         if (copy.entry_number == -1)
 628                                 tprintf("{entry_number:%d -> ",
 629                                         copy.entry_number);
 630                         else
 631                                 tprints("{entry_number:");
 632                 }
 633         } else {
 634                 if (umove(tcp, tcp->u_arg[0], &copy) != -1) {
 635                         tprintf("%d, ", copy.entry_number);
 636                         if (!verbose(tcp))
 637                                 tprints("...}");
 638                         else {
 639                                 print_ldt_entry(&copy);
 640                         }
 641                 } else {
 642                         tprintf("%lx", tcp->u_arg[0]);
 643                 }
 644         }
 645         return 0;
 646
 647 }
 648
 649 int
 650 sys_get_thread_area(struct tcb *tcp)
 651 {
 652         struct modify_ldt_ldt_s copy;
 653         if (exiting(tcp)) {
 654                 if (umove(tcp, tcp->u_arg[0], &copy) != -1) {
 655                         tprintf("{entry_number:%d, ", copy.entry_number);
 656                         if (!verbose(tcp))
 657                                 tprints("...}");
 658                         else {
 659                                 print_ldt_entry(&copy);
 660                         }
 661                 } else {
 662                         tprintf("%lx", tcp->u_arg[0]);
 663                 }
 664         }
 665         return 0;
 666
 667 }
 668 #endif /* I386 */
 669
 670 #if defined(M68K)
 671 int
 672 sys_set_thread_area(struct tcb *tcp)
 673 {
 674         if (entering(tcp))
 675                 tprintf("%#lx", tcp->u_arg[0]);
 676         return 0;
 677
 678 }
 679
 680 int
 681 sys_get_thread_area(struct tcb *tcp)
 682 {
 683         return RVAL_HEX;
 684 }
 685 #endif
 686
 687 int
 688 sys_remap_file_pages(struct tcb *tcp)
 689 {
 690         if (entering(tcp)) {
 691                 tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
 692                 printflags(mmap_prot, tcp->u_arg[2], "PROT_???");
 693                 tprintf(", %lu, ", tcp->u_arg[3]);
 694 #ifdef MAP_TYPE
 695                 printxval(mmap_flags, tcp->u_arg[4] & MAP_TYPE, "MAP_???");
 696                 addflags(mmap_flags, tcp->u_arg[4] & ~MAP_TYPE);
 697 #else
 698                 printflags(mmap_flags, tcp->u_arg[4], "MAP_???");
 699 #endif
 700         }
 701         return 0;
 702 }
 703
 704 #define MPOL_DEFAULT    0
 705 #define MPOL_PREFERRED  1
 706 #define MPOL_BIND       2
 707 #define MPOL_INTERLEAVE 3
 708
 709 #define MPOL_F_NODE     (1<<0)
 710 #define MPOL_F_ADDR     (1<<1)
 711
 712 #define MPOL_MF_STRICT  (1<<0)
 713 #define MPOL_MF_MOVE    (1<<1)
 714 #define MPOL_MF_MOVE_ALL (1<<2)
 715
 716 static const struct xlat policies[] = {
 717         { MPOL_DEFAULT,         "MPOL_DEFAULT"          },
 718         { MPOL_PREFERRED,       "MPOL_PREFERRED"        },
 719         { MPOL_BIND,            "MPOL_BIND"             },
 720         { MPOL_INTERLEAVE,      "MPOL_INTERLEAVE"       },
 721         { 0,                    NULL                    }
 722 };
 723
 724 static const struct xlat mbindflags[] = {
 725         { MPOL_MF_STRICT,       "MPOL_MF_STRICT"        },
 726         { MPOL_MF_MOVE,         "MPOL_MF_MOVE"          },
 727         { MPOL_MF_MOVE_ALL,     "MPOL_MF_MOVE_ALL"      },
 728         { 0,                    NULL                    }
 729 };
 730
 731 static const struct xlat mempolicyflags[] = {
 732         { MPOL_F_NODE,          "MPOL_F_NODE"           },
 733         { MPOL_F_ADDR,          "MPOL_F_ADDR"           },
 734         { 0,                    NULL                    }
 735 };
 736
 737 static const struct xlat move_pages_flags[] = {
 738         { MPOL_MF_MOVE,         "MPOL_MF_MOVE"          },
 739         { MPOL_MF_MOVE_ALL,     "MPOL_MF_MOVE_ALL"      },
 740         { 0,                    NULL                    }
 741 };
 742
 743 static void
 744 get_nodes(struct tcb *tcp, unsigned long ptr, unsigned long maxnodes, int err)
 745 {
 746         unsigned long nlongs, size, end;
 747
 748         nlongs = (maxnodes + 8 * sizeof(long) - 1) / (8 * sizeof(long));
 749         size = nlongs * sizeof(long);
 750         end = ptr + size;
 751         if (nlongs == 0 || ((err || verbose(tcp)) && (size * 8 == maxnodes)
 752                             && (end > ptr))) {
 753                 unsigned long n, cur, abbrev_end;
 754                 int failed = 0;
 755
 756                 if (abbrev(tcp)) {
 757                         abbrev_end = ptr + max_strlen * sizeof(long);
 758                         if (abbrev_end < ptr)
 759                                 abbrev_end = end;
 760                 } else {
 761                         abbrev_end = end;
 762                 }
 763                 tprints(", {");
 764                 for (cur = ptr; cur < end; cur += sizeof(long)) {
 765                         if (cur > ptr)
 766                                 tprints(", ");
 767                         if (cur >= abbrev_end) {
 768                                 tprints("...");
 769                                 break;
 770                         }
 771                         if (umoven(tcp, cur, sizeof(n), (char *) &n) < 0) {
 772                                 tprints("?");
 773                                 failed = 1;
 774                                 break;
 775                         }
 776                         tprintf("%#0*lx", (int) sizeof(long) * 2 + 2, n);
 777                 }
 778                 tprints("}");
 779                 if (failed)
 780                         tprintf(" %#lx", ptr);
 781         } else
 782                 tprintf(", %#lx", ptr);
 783         tprintf(", %lu", maxnodes);
 784 }
 785
 786 int
 787 sys_mbind(struct tcb *tcp)
 788 {
 789         if (entering(tcp)) {
 790                 tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
 791                 printxval(policies, tcp->u_arg[2], "MPOL_???");
 792                 get_nodes(tcp, tcp->u_arg[3], tcp->u_arg[4], 0);
 793                 tprints(", ");
 794                 printflags(mbindflags, tcp->u_arg[5], "MPOL_???");
 795         }
 796         return 0;
 797 }
 798
 799 int
 800 sys_set_mempolicy(struct tcb *tcp)
 801 {
 802         if (entering(tcp)) {
 803                 printxval(policies, tcp->u_arg[0], "MPOL_???");
 804                 get_nodes(tcp, tcp->u_arg[1], tcp->u_arg[2], 0);
 805         }
 806         return 0;
 807 }
 808
 809 int
 810 sys_get_mempolicy(struct tcb *tcp)
 811 {
 812         if (exiting(tcp)) {
 813                 int pol;
 814                 if (tcp->u_arg[0] == 0)
 815                         tprints("NULL");
 816                 else if (syserror(tcp) || umove(tcp, tcp->u_arg[0], &pol) < 0)
 817                         tprintf("%#lx", tcp->u_arg[0]);
 818                 else
 819                         printxval(policies, pol, "MPOL_???");
 820                 get_nodes(tcp, tcp->u_arg[1], tcp->u_arg[2], syserror(tcp));
 821                 tprintf(", %#lx, ", tcp->u_arg[3]);
 822                 printflags(mempolicyflags, tcp->u_arg[4], "MPOL_???");
 823         }
 824         return 0;
 825 }
 826
 827 int
 828 sys_migrate_pages(struct tcb *tcp)
 829 {
 830         if (entering(tcp)) {
 831                 tprintf("%ld, ", (long) (pid_t) tcp->u_arg[0]);
 832                 get_nodes(tcp, tcp->u_arg[2], tcp->u_arg[1], 0);
 833                 tprints(", ");
 834                 get_nodes(tcp, tcp->u_arg[3], tcp->u_arg[1], 0);
 835         }
 836         return 0;
 837 }
 838
 839 int
 840 sys_move_pages(struct tcb *tcp)
 841 {
 842         if (entering(tcp)) {
 843                 unsigned long npages = tcp->u_arg[1];
 844                 tprintf("%ld, %lu, ", tcp->u_arg[0], npages);
 845                 if (tcp->u_arg[2] == 0)
 846                         tprints("NULL, ");
 847                 else {
 848                         int i;
 849                         long puser = tcp->u_arg[2];
 850                         tprints("{");
 851                         for (i = 0; i < npages; ++i) {
 852                                 void *p;
 853                                 if (i > 0)
 854                                         tprints(", ");
 855                                 if (umove(tcp, puser, &p) < 0) {
 856                                         tprints("???");
 857                                         break;
 858                                 }
 859                                 tprintf("%p", p);
 860                                 puser += sizeof(void *);
 861                         }
 862                         tprints("}, ");
 863                 }
 864                 if (tcp->u_arg[3] == 0)
 865                         tprints("NULL, ");
 866                 else {
 867                         int i;
 868                         long nodeuser = tcp->u_arg[3];
 869                         tprints("{");
 870                         for (i = 0; i < npages; ++i) {
 871                                 int node;
 872                                 if (i > 0)
 873                                         tprints(", ");
 874                                 if (umove(tcp, nodeuser, &node) < 0) {
 875                                         tprints("???");
 876                                         break;
 877                                 }
 878                                 tprintf("%#x", node);
 879                                 nodeuser += sizeof(int);
 880                         }
 881                         tprints("}, ");
 882                 }
 883         }
 884         if (exiting(tcp)) {
 885                 unsigned long npages = tcp->u_arg[1];
 886                 if (tcp->u_arg[4] == 0)
 887                         tprints("NULL, ");
 888                 else {
 889                         int i;
 890                         long statususer = tcp->u_arg[4];
 891                         tprints("{");
 892                         for (i = 0; i < npages; ++i) {
 893                                 int status;
 894                                 if (i > 0)
 895                                         tprints(", ");
 896                                 if (umove(tcp, statususer, &status) < 0) {
 897                                         tprints("???");
 898                                         break;
 899                                 }
 900                                 tprintf("%#x", status);
 901                                 statususer += sizeof(int);
 902                         }
 903                         tprints("}, ");
 904                 }
 905                 printflags(move_pages_flags, tcp->u_arg[5], "MPOL_???");
 906         }
 907         return 0;
 908 }
 909
 910 #if defined(POWERPC)
 911 int
 912 sys_subpage_prot(struct tcb *tcp)
 913 {
 914         if (entering(tcp)) {
 915                 unsigned long cur, end, abbrev_end, entries;
 916                 unsigned int entry;
 917
 918                 tprintf("%#lx, %#lx, ", tcp->u_arg[0], tcp->u_arg[1]);
 919                 entries = tcp->u_arg[1] >> 16;
 920                 if (!entries || !tcp->u_arg[2]) {
 921                         tprints("{}");
 922                         return 0;
 923                 }
 924                 cur = tcp->u_arg[2];
 925                 end = cur + (sizeof(int) * entries);
 926                 if (!verbose(tcp) || end < tcp->u_arg[2]) {
 927                         tprintf("%#lx", tcp->u_arg[2]);
 928                         return 0;
 929                 }
 930                 if (abbrev(tcp)) {
 931                         abbrev_end = cur + (sizeof(int) * max_strlen);
 932                         if (abbrev_end > end)
 933                                 abbrev_end = end;
 934                 }
 935                 else
 936                         abbrev_end = end;
 937                 tprints("{");
 938                 for (; cur < end; cur += sizeof(int)) {
 939                         if (cur > tcp->u_arg[2])
 940                                 tprints(", ");
 941                         if (cur >= abbrev_end) {
 942                                 tprints("...");
 943                                 break;
 944                         }
 945                         if (umove(tcp, cur, &entry) < 0) {
 946                                 tprintf("??? [%#lx]", cur);
 947                                 break;
 948                         }
 949                         else
 950                                 tprintf("%#08x", entry);
 951                 }
 952                 tprints("}");
 953         }
 954
 955         return 0;
 956 }
 957 #endif