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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 #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 #if !HAVE_LONG_LONG_OFF_T
 213 static int
 214 print_mmap(struct tcb *tcp, long *u_arg, long long offset)
 215 {
 216         if (entering(tcp)) {
 217                 /* addr */
 218                 if (!u_arg[0])
 219                         tprints("NULL, ");
 220                 else
 221                         tprintf("%#lx, ", u_arg[0]);
 222                 /* len */
 223                 tprintf("%lu, ", u_arg[1]);
 224                 /* prot */
 225                 printflags(mmap_prot, u_arg[2], "PROT_???");
 226                 tprints(", ");
 227                 /* flags */
 228 #ifdef MAP_TYPE
 229                 printxval(mmap_flags, u_arg[3] & MAP_TYPE, "MAP_???");
 230 #ifdef TILE
 231                 addflags(mmap_flags, addtileflags(u_arg[3] & ~MAP_TYPE));
 232 #else
 233                 addflags(mmap_flags, u_arg[3] & ~MAP_TYPE);
 234 #endif
 235 #else
 236                 printflags(mmap_flags, u_arg[3], "MAP_???");
 237 #endif
 238                 /* fd */
 239                 tprints(", ");
 240                 printfd(tcp, u_arg[4]);
 241                 /* offset */
 242                 tprintf(", %#llx", offset);
 243         }
 244         return RVAL_HEX;
 245 }
 246
 247 int sys_old_mmap(struct tcb *tcp)
 248 {
 249 #if defined(IA64)
 250         /*
 251          * IA64 processes never call this routine, they only use the
 252          * new `sys_mmap' interface.
 253          * For IA32 processes, this code converts the integer arguments
 254          * that they pushed onto the stack, into longs.
 255          *
 256          * Note that addresses with bit 31 set will be sign extended.
 257          * Fortunately, those addresses are not currently being generated
 258          * for IA32 processes so it's not a problem.
 259          */
 260         int i;
 261         long u_arg[6];
 262         int narrow_arg[6];
 263         if (umoven(tcp, tcp->u_arg[0], sizeof(narrow_arg), (char *) narrow_arg) == -1)
 264                 return 0;
 265         for (i = 0; i < 6; i++)
 266                 u_arg[i] = narrow_arg[i];
 267 #elif defined(SH) || defined(SH64)
 268         /* SH has always passed the args in registers */
 269         long *u_arg = tcp->u_arg;
 270 #else
 271         long u_arg[6];
 272 # if defined(X86_64)
 273         if (current_personality == 1) {
 274                 int i;
 275                 unsigned narrow_arg[6];
 276                 if (umoven(tcp, tcp->u_arg[0], sizeof(narrow_arg), (char *) narrow_arg) == -1)
 277                         return 0;
 278                 for (i = 0; i < 6; ++i)
 279                         u_arg[i] = narrow_arg[i];
 280         }
 281         else
 282 # endif
 283         if (umoven(tcp, tcp->u_arg[0], sizeof(u_arg), (char *) u_arg) == -1)
 284                 return 0;
 285 #endif /* other architectures */
 286
 287         return print_mmap(tcp, u_arg, u_arg[5]);
 288 }
 289
 290 int
 291 sys_mmap(struct tcb *tcp)
 292 {
 293         long long offset = tcp->u_arg[5];
 294
 295         /* FIXME: why only SH64? i386 mmap2 syscall ends up
 296          * in this function, but does not convert offset
 297          * from pages to bytes. See test/mmap_offset_decode.c
 298          * Why SH64 and i386 are handled differently?
 299          */
 300 #if defined(SH64)
 301         /*
 302          * Old mmap differs from new mmap in specifying the
 303          * offset in units of bytes rather than pages.  We
 304          * pretend it's in byte units so the user only ever
 305          * sees bytes in the printout.
 306          */
 307         offset <<= PAGE_SHIFT;
 308 #endif
 309 #if defined(LINUX_MIPSN32)
 310         offset = tcp->ext_arg[5];
 311 #endif
 312         return print_mmap(tcp, tcp->u_arg, offset);
 313 }
 314 #endif /* !HAVE_LONG_LONG_OFF_T */
 315
 316 #if _LFS64_LARGEFILE || HAVE_LONG_LONG_OFF_T
 317 # if defined(X32)
 318 int sys_old_mmap(struct tcb *tcp)
 319 {
 320         long u_arg[6];
 321         if (umoven(tcp, tcp->u_arg[0], sizeof(u_arg), (char *) u_arg) == -1)
 322                 return 0;
 323         if (entering(tcp)) {
 324                 /* addr */
 325                 if (!u_arg[0])
 326                         tprints("NULL, ");
 327                 else
 328                         tprintf("%#lx, ", u_arg[0]);
 329                 /* len */
 330                 tprintf("%lu, ", u_arg[1]);
 331                 /* prot */
 332                 printflags(mmap_prot, u_arg[2], "PROT_???");
 333                 tprints(", ");
 334                 /* flags */
 335 #  ifdef MAP_TYPE
 336                 printxval(mmap_flags, u_arg[3] & MAP_TYPE, "MAP_???");
 337                 addflags(mmap_flags, u_arg[3] & ~MAP_TYPE);
 338 #  else
 339                 printflags(mmap_flags, u_arg[3], "MAP_???");
 340 #  endif
 341                 /* fd */
 342                 tprints(", ");
 343                 printfd(tcp, u_arg[4]);
 344                 /* offset */
 345                 tprintf(", %#lx", u_arg[5]);
 346         }
 347         return RVAL_HEX;
 348 }
 349 # endif
 350
 351 /* TODO: comment which arches use this routine.
 352  * For one, does ALPHA on Linux use this??
 353  * From code it seems that it might use 7 or 8 registers,
 354  * which is strange - Linux syscalls can pass maximum of 6 parameters!
 355  */
 356 int
 357 sys_mmap64(struct tcb *tcp)
 358 {
 359         if (entering(tcp)) {
 360 #if defined(ALPHA) || defined(X32)
 361                 long *u_arg = tcp->u_arg;
 362 #else
 363                 long u_arg[7];
 364                 if (umoven(tcp, tcp->u_arg[0], sizeof u_arg,
 365                                 (char *) u_arg) == -1)
 366                         return 0;
 367 #endif
 368                 /* addr */
 369                 if (!u_arg[0])
 370                         tprints("NULL, ");
 371                 else
 372                         tprintf("%#lx, ", u_arg[0]);
 373                 /* len */
 374                 tprintf("%lu, ", u_arg[1]);
 375                 /* prot */
 376                 printflags(mmap_prot, u_arg[2], "PROT_???");
 377                 tprints(", ");
 378                 /* flags */
 379 #ifdef MAP_TYPE
 380                 printxval(mmap_flags, u_arg[3] & MAP_TYPE, "MAP_???");
 381                 addflags(mmap_flags, u_arg[3] & ~MAP_TYPE);
 382 #else
 383                 printflags(mmap_flags, u_arg[3], "MAP_???");
 384 #endif
 385                 /* fd */
 386                 tprints(", ");
 387                 printfd(tcp, u_arg[4]);
 388                 /* offset */
 389 #if defined(ALPHA) || defined(X32)
 390                 printllval(tcp, ", %#llx", 5);
 391 #else
 392                 /* NOTE: not verified that [5] and [6] should be used.
 393                  * It's possible that long long is 64-bit aligned in memory
 394                  * and we need to use [6] and [7] here instead:
 395                  */
 396                 tprintf(", %#llx", LONG_LONG(u_arg[5], u_arg[6]));
 397 #endif
 398         }
 399         return RVAL_HEX;
 400 }
 401 #endif /* _LFS64_LARGEFILE || HAVE_LONG_LONG_OFF_T */
 402
 403 int
 404 sys_munmap(struct tcb *tcp)
 405 {
 406         if (entering(tcp)) {
 407                 tprintf("%#lx, %lu",
 408                         tcp->u_arg[0], tcp->u_arg[1]);
 409         }
 410         return 0;
 411 }
 412
 413 int
 414 sys_mprotect(struct tcb *tcp)
 415 {
 416         if (entering(tcp)) {
 417                 tprintf("%#lx, %lu, ",
 418                         tcp->u_arg[0], tcp->u_arg[1]);
 419                 printflags(mmap_prot, tcp->u_arg[2], "PROT_???");
 420         }
 421         return 0;
 422 }
 423
 424 static const struct xlat mremap_flags[] = {
 425         { MREMAP_MAYMOVE,       "MREMAP_MAYMOVE"        },
 426 #ifdef MREMAP_FIXED
 427         { MREMAP_FIXED,         "MREMAP_FIXED"          },
 428 #endif
 429         { 0,                    NULL                    }
 430 };
 431
 432 int
 433 sys_mremap(struct tcb *tcp)
 434 {
 435         if (entering(tcp)) {
 436                 tprintf("%#lx, %lu, %lu, ", tcp->u_arg[0], tcp->u_arg[1],
 437                         tcp->u_arg[2]);
 438                 printflags(mremap_flags, tcp->u_arg[3], "MREMAP_???");
 439 #ifdef MREMAP_FIXED
 440                 if ((tcp->u_arg[3] & (MREMAP_MAYMOVE | MREMAP_FIXED)) ==
 441                     (MREMAP_MAYMOVE | MREMAP_FIXED))
 442                         tprintf(", %#lx", tcp->u_arg[4]);
 443 #endif
 444         }
 445         return RVAL_HEX;
 446 }
 447
 448 static const struct xlat madvise_cmds[] = {
 449 #ifdef MADV_NORMAL
 450         { MADV_NORMAL,          "MADV_NORMAL" },
 451 #endif
 452 #ifdef MADV_RANDOM
 453         { MADV_RANDOM,          "MADV_RANDOM" },
 454 #endif
 455 #ifdef MADV_SEQUENTIAL
 456         { MADV_SEQUENTIAL,      "MADV_SEQUENTIAL" },
 457 #endif
 458 #ifdef MADV_WILLNEED
 459         { MADV_WILLNEED,        "MADV_WILLNEED" },
 460 #endif
 461 #ifdef MADV_DONTNEED
 462         { MADV_DONTNEED,        "MADV_DONTNEED" },
 463 #endif
 464         { 0,                    NULL },
 465 };
 466
 467 int
 468 sys_madvise(struct tcb *tcp)
 469 {
 470         if (entering(tcp)) {
 471                 tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
 472                 printxval(madvise_cmds, tcp->u_arg[2], "MADV_???");
 473         }
 474         return 0;
 475 }
 476
 477 static const struct xlat mlockall_flags[] = {
 478 #ifdef MCL_CURRENT
 479         { MCL_CURRENT,  "MCL_CURRENT" },
 480 #endif
 481 #ifdef MCL_FUTURE
 482         { MCL_FUTURE,   "MCL_FUTURE" },
 483 #endif
 484         { 0,            NULL}
 485 };
 486
 487 int
 488 sys_mlockall(struct tcb *tcp)
 489 {
 490         if (entering(tcp)) {
 491                 printflags(mlockall_flags, tcp->u_arg[0], "MCL_???");
 492         }
 493         return 0;
 494 }
 495
 496 #ifdef MS_ASYNC
 497
 498 static const struct xlat mctl_sync[] = {
 499 #ifdef MS_SYNC
 500         { MS_SYNC,      "MS_SYNC"       },
 501 #endif
 502         { MS_ASYNC,     "MS_ASYNC"      },
 503         { MS_INVALIDATE,"MS_INVALIDATE" },
 504         { 0,            NULL            },
 505 };
 506
 507 int
 508 sys_msync(struct tcb *tcp)
 509 {
 510         if (entering(tcp)) {
 511                 /* addr */
 512                 tprintf("%#lx", tcp->u_arg[0]);
 513                 /* len */
 514                 tprintf(", %lu, ", tcp->u_arg[1]);
 515                 /* flags */
 516                 printflags(mctl_sync, tcp->u_arg[2], "MS_???");
 517         }
 518         return 0;
 519 }
 520
 521 #endif /* MS_ASYNC */
 522
 523 #ifdef MC_SYNC
 524
 525 static const struct xlat mctl_funcs[] = {
 526         { MC_LOCK,      "MC_LOCK"       },
 527         { MC_LOCKAS,    "MC_LOCKAS"     },
 528         { MC_SYNC,      "MC_SYNC"       },
 529         { MC_UNLOCK,    "MC_UNLOCK"     },
 530         { MC_UNLOCKAS,  "MC_UNLOCKAS"   },
 531         { 0,            NULL            },
 532 };
 533
 534 static const struct xlat mctl_lockas[] = {
 535         { MCL_CURRENT,  "MCL_CURRENT"   },
 536         { MCL_FUTURE,   "MCL_FUTURE"    },
 537         { 0,            NULL            },
 538 };
 539
 540 int
 541 sys_mctl(struct tcb *tcp)
 542 {
 543         int arg, function;
 544
 545         if (entering(tcp)) {
 546                 /* addr */
 547                 tprintf("%#lx", tcp->u_arg[0]);
 548                 /* len */
 549                 tprintf(", %lu, ", tcp->u_arg[1]);
 550                 /* function */
 551                 function = tcp->u_arg[2];
 552                 printflags(mctl_funcs, function, "MC_???");
 553                 /* arg */
 554                 arg = tcp->u_arg[3];
 555                 tprints(", ");
 556                 switch (function) {
 557                 case MC_SYNC:
 558                         printflags(mctl_sync, arg, "MS_???");
 559                         break;
 560                 case MC_LOCKAS:
 561                         printflags(mctl_lockas, arg, "MCL_???");
 562                         break;
 563                 default:
 564                         tprintf("%#x", arg);
 565                         break;
 566                 }
 567         }
 568         return 0;
 569 }
 570
 571 #endif /* MC_SYNC */
 572
 573 int
 574 sys_mincore(struct tcb *tcp)
 575 {
 576         if (entering(tcp)) {
 577                 tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
 578         } else {
 579                 unsigned long i, len;
 580                 char *vec = NULL;
 581
 582                 len = tcp->u_arg[1];
 583                 if (syserror(tcp) || tcp->u_arg[2] == 0 ||
 584                         (vec = malloc(len)) == NULL ||
 585                         umoven(tcp, tcp->u_arg[2], len, vec) < 0)
 586                         tprintf("%#lx", tcp->u_arg[2]);
 587                 else {
 588                         tprints("[");
 589                         for (i = 0; i < len; i++) {
 590                                 if (abbrev(tcp) && i >= max_strlen) {
 591                                         tprints("...");
 592                                         break;
 593                                 }
 594                                 tprints((vec[i] & 1) ? "1" : "0");
 595                         }
 596                         tprints("]");
 597                 }
 598                 free(vec);
 599         }
 600         return 0;
 601 }
 602
 603 #if defined(ALPHA) || defined(IA64) || defined(SPARC) || defined(SPARC64)
 604 int
 605 sys_getpagesize(struct tcb *tcp)
 606 {
 607         if (exiting(tcp))
 608                 return RVAL_HEX;
 609         return 0;
 610 }
 611 #endif
 612
 613 #if defined(I386)
 614 void
 615 print_ldt_entry(struct modify_ldt_ldt_s *ldt_entry)
 616 {
 617         tprintf("base_addr:%#08lx, "
 618                 "limit:%d, "
 619                 "seg_32bit:%d, "
 620                 "contents:%d, "
 621                 "read_exec_only:%d, "
 622                 "limit_in_pages:%d, "
 623                 "seg_not_present:%d, "
 624                 "useable:%d}",
 625                 (long) ldt_entry->base_addr,
 626                 ldt_entry->limit,
 627                 ldt_entry->seg_32bit,
 628                 ldt_entry->contents,
 629                 ldt_entry->read_exec_only,
 630                 ldt_entry->limit_in_pages,
 631                 ldt_entry->seg_not_present,
 632                 ldt_entry->useable);
 633 }
 634
 635 int
 636 sys_modify_ldt(struct tcb *tcp)
 637 {
 638         if (entering(tcp)) {
 639                 struct modify_ldt_ldt_s copy;
 640                 tprintf("%ld", tcp->u_arg[0]);
 641                 if (tcp->u_arg[1] == 0
 642                                 || tcp->u_arg[2] != sizeof(struct modify_ldt_ldt_s)
 643                                 || umove(tcp, tcp->u_arg[1], &copy) == -1)
 644                         tprintf(", %lx", tcp->u_arg[1]);
 645                 else {
 646                         tprintf(", {entry_number:%d, ", copy.entry_number);
 647                         if (!verbose(tcp))
 648                                 tprints("...}");
 649                         else {
 650                                 print_ldt_entry(&copy);
 651                         }
 652                 }
 653                 tprintf(", %lu", tcp->u_arg[2]);
 654         }
 655         return 0;
 656 }
 657
 658 int
 659 sys_set_thread_area(struct tcb *tcp)
 660 {
 661         struct modify_ldt_ldt_s copy;
 662         if (entering(tcp)) {
 663                 if (umove(tcp, tcp->u_arg[0], &copy) != -1) {
 664                         if (copy.entry_number == -1)
 665                                 tprintf("{entry_number:%d -> ",
 666                                         copy.entry_number);
 667                         else
 668                                 tprints("{entry_number:");
 669                 }
 670         } else {
 671                 if (umove(tcp, tcp->u_arg[0], &copy) != -1) {
 672                         tprintf("%d, ", copy.entry_number);
 673                         if (!verbose(tcp))
 674                                 tprints("...}");
 675                         else {
 676                                 print_ldt_entry(&copy);
 677                         }
 678                 } else {
 679                         tprintf("%lx", tcp->u_arg[0]);
 680                 }
 681         }
 682         return 0;
 683
 684 }
 685
 686 int
 687 sys_get_thread_area(struct tcb *tcp)
 688 {
 689         struct modify_ldt_ldt_s copy;
 690         if (exiting(tcp)) {
 691                 if (umove(tcp, tcp->u_arg[0], &copy) != -1) {
 692                         tprintf("{entry_number:%d, ", copy.entry_number);
 693                         if (!verbose(tcp))
 694                                 tprints("...}");
 695                         else {
 696                                 print_ldt_entry(&copy);
 697                         }
 698                 } else {
 699                         tprintf("%lx", tcp->u_arg[0]);
 700                 }
 701         }
 702         return 0;
 703
 704 }
 705 #endif /* I386 */
 706
 707 #if defined(M68K)
 708 int
 709 sys_set_thread_area(struct tcb *tcp)
 710 {
 711         if (entering(tcp))
 712                 tprintf("%#lx", tcp->u_arg[0]);
 713         return 0;
 714
 715 }
 716
 717 int
 718 sys_get_thread_area(struct tcb *tcp)
 719 {
 720         return RVAL_HEX;
 721 }
 722 #endif
 723
 724 int
 725 sys_remap_file_pages(struct tcb *tcp)
 726 {
 727         if (entering(tcp)) {
 728                 tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
 729                 printflags(mmap_prot, tcp->u_arg[2], "PROT_???");
 730                 tprintf(", %lu, ", tcp->u_arg[3]);
 731 #ifdef MAP_TYPE
 732                 printxval(mmap_flags, tcp->u_arg[4] & MAP_TYPE, "MAP_???");
 733                 addflags(mmap_flags, tcp->u_arg[4] & ~MAP_TYPE);
 734 #else
 735                 printflags(mmap_flags, tcp->u_arg[4], "MAP_???");
 736 #endif
 737         }
 738         return 0;
 739 }
 740
 741 #define MPOL_DEFAULT    0
 742 #define MPOL_PREFERRED  1
 743 #define MPOL_BIND       2
 744 #define MPOL_INTERLEAVE 3
 745
 746 #define MPOL_F_NODE     (1<<0)
 747 #define MPOL_F_ADDR     (1<<1)
 748
 749 #define MPOL_MF_STRICT  (1<<0)
 750 #define MPOL_MF_MOVE    (1<<1)
 751 #define MPOL_MF_MOVE_ALL (1<<2)
 752
 753 static const struct xlat policies[] = {
 754         { MPOL_DEFAULT,         "MPOL_DEFAULT"          },
 755         { MPOL_PREFERRED,       "MPOL_PREFERRED"        },
 756         { MPOL_BIND,            "MPOL_BIND"             },
 757         { MPOL_INTERLEAVE,      "MPOL_INTERLEAVE"       },
 758         { 0,                    NULL                    }
 759 };
 760
 761 static const struct xlat mbindflags[] = {
 762         { MPOL_MF_STRICT,       "MPOL_MF_STRICT"        },
 763         { MPOL_MF_MOVE,         "MPOL_MF_MOVE"          },
 764         { MPOL_MF_MOVE_ALL,     "MPOL_MF_MOVE_ALL"      },
 765         { 0,                    NULL                    }
 766 };
 767
 768 static const struct xlat mempolicyflags[] = {
 769         { MPOL_F_NODE,          "MPOL_F_NODE"           },
 770         { MPOL_F_ADDR,          "MPOL_F_ADDR"           },
 771         { 0,                    NULL                    }
 772 };
 773
 774 static const struct xlat move_pages_flags[] = {
 775         { MPOL_MF_MOVE,         "MPOL_MF_MOVE"          },
 776         { MPOL_MF_MOVE_ALL,     "MPOL_MF_MOVE_ALL"      },
 777         { 0,                    NULL                    }
 778 };
 779
 780 static void
 781 get_nodes(struct tcb *tcp, unsigned long ptr, unsigned long maxnodes, int err)
 782 {
 783         unsigned long nlongs, size, end;
 784
 785         nlongs = (maxnodes + 8 * sizeof(long) - 1) / (8 * sizeof(long));
 786         size = nlongs * sizeof(long);
 787         end = ptr + size;
 788         if (nlongs == 0 || ((err || verbose(tcp)) && (size * 8 == maxnodes)
 789                             && (end > ptr))) {
 790                 unsigned long n, cur, abbrev_end;
 791                 int failed = 0;
 792
 793                 if (abbrev(tcp)) {
 794                         abbrev_end = ptr + max_strlen * sizeof(long);
 795                         if (abbrev_end < ptr)
 796                                 abbrev_end = end;
 797                 } else {
 798                         abbrev_end = end;
 799                 }
 800                 tprints(", {");
 801                 for (cur = ptr; cur < end; cur += sizeof(long)) {
 802                         if (cur > ptr)
 803                                 tprints(", ");
 804                         if (cur >= abbrev_end) {
 805                                 tprints("...");
 806                                 break;
 807                         }
 808                         if (umoven(tcp, cur, sizeof(n), (char *) &n) < 0) {
 809                                 tprints("?");
 810                                 failed = 1;
 811                                 break;
 812                         }
 813                         tprintf("%#0*lx", (int) sizeof(long) * 2 + 2, n);
 814                 }
 815                 tprints("}");
 816                 if (failed)
 817                         tprintf(" %#lx", ptr);
 818         } else
 819                 tprintf(", %#lx", ptr);
 820         tprintf(", %lu", maxnodes);
 821 }
 822
 823 int
 824 sys_mbind(struct tcb *tcp)
 825 {
 826         if (entering(tcp)) {
 827                 tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
 828                 printxval(policies, tcp->u_arg[2], "MPOL_???");
 829                 get_nodes(tcp, tcp->u_arg[3], tcp->u_arg[4], 0);
 830                 tprints(", ");
 831                 printflags(mbindflags, tcp->u_arg[5], "MPOL_???");
 832         }
 833         return 0;
 834 }
 835
 836 int
 837 sys_set_mempolicy(struct tcb *tcp)
 838 {
 839         if (entering(tcp)) {
 840                 printxval(policies, tcp->u_arg[0], "MPOL_???");
 841                 get_nodes(tcp, tcp->u_arg[1], tcp->u_arg[2], 0);
 842         }
 843         return 0;
 844 }
 845
 846 int
 847 sys_get_mempolicy(struct tcb *tcp)
 848 {
 849         if (exiting(tcp)) {
 850                 int pol;
 851                 if (tcp->u_arg[0] == 0)
 852                         tprints("NULL");
 853                 else if (syserror(tcp) || umove(tcp, tcp->u_arg[0], &pol) < 0)
 854                         tprintf("%#lx", tcp->u_arg[0]);
 855                 else
 856                         printxval(policies, pol, "MPOL_???");
 857                 get_nodes(tcp, tcp->u_arg[1], tcp->u_arg[2], syserror(tcp));
 858                 tprintf(", %#lx, ", tcp->u_arg[3]);
 859                 printflags(mempolicyflags, tcp->u_arg[4], "MPOL_???");
 860         }
 861         return 0;
 862 }
 863
 864 int
 865 sys_migrate_pages(struct tcb *tcp)
 866 {
 867         if (entering(tcp)) {
 868                 tprintf("%ld, ", (long) (pid_t) tcp->u_arg[0]);
 869                 get_nodes(tcp, tcp->u_arg[2], tcp->u_arg[1], 0);
 870                 tprints(", ");
 871                 get_nodes(tcp, tcp->u_arg[3], tcp->u_arg[1], 0);
 872         }
 873         return 0;
 874 }
 875
 876 int
 877 sys_move_pages(struct tcb *tcp)
 878 {
 879         if (entering(tcp)) {
 880                 unsigned long npages = tcp->u_arg[1];
 881                 tprintf("%ld, %lu, ", tcp->u_arg[0], npages);
 882                 if (tcp->u_arg[2] == 0)
 883                         tprints("NULL, ");
 884                 else {
 885                         int i;
 886                         long puser = tcp->u_arg[2];
 887                         tprints("{");
 888                         for (i = 0; i < npages; ++i) {
 889                                 void *p;
 890                                 if (i > 0)
 891                                         tprints(", ");
 892                                 if (umove(tcp, puser, &p) < 0) {
 893                                         tprints("???");
 894                                         break;
 895                                 }
 896                                 tprintf("%p", p);
 897                                 puser += sizeof(void *);
 898                         }
 899                         tprints("}, ");
 900                 }
 901                 if (tcp->u_arg[3] == 0)
 902                         tprints("NULL, ");
 903                 else {
 904                         int i;
 905                         long nodeuser = tcp->u_arg[3];
 906                         tprints("{");
 907                         for (i = 0; i < npages; ++i) {
 908                                 int node;
 909                                 if (i > 0)
 910                                         tprints(", ");
 911                                 if (umove(tcp, nodeuser, &node) < 0) {
 912                                         tprints("???");
 913                                         break;
 914                                 }
 915                                 tprintf("%#x", node);
 916                                 nodeuser += sizeof(int);
 917                         }
 918                         tprints("}, ");
 919                 }
 920         }
 921         if (exiting(tcp)) {
 922                 unsigned long npages = tcp->u_arg[1];
 923                 if (tcp->u_arg[4] == 0)
 924                         tprints("NULL, ");
 925                 else {
 926                         int i;
 927                         long statususer = tcp->u_arg[4];
 928                         tprints("{");
 929                         for (i = 0; i < npages; ++i) {
 930                                 int status;
 931                                 if (i > 0)
 932                                         tprints(", ");
 933                                 if (umove(tcp, statususer, &status) < 0) {
 934                                         tprints("???");
 935                                         break;
 936                                 }
 937                                 tprintf("%#x", status);
 938                                 statususer += sizeof(int);
 939                         }
 940                         tprints("}, ");
 941                 }
 942                 printflags(move_pages_flags, tcp->u_arg[5], "MPOL_???");
 943         }
 944         return 0;
 945 }
 946
 947 #if defined(POWERPC)
 948 int
 949 sys_subpage_prot(struct tcb *tcp)
 950 {
 951         if (entering(tcp)) {
 952                 unsigned long cur, end, abbrev_end, entries;
 953                 unsigned int entry;
 954
 955                 tprintf("%#lx, %#lx, ", tcp->u_arg[0], tcp->u_arg[1]);
 956                 entries = tcp->u_arg[1] >> 16;
 957                 if (!entries || !tcp->u_arg[2]) {
 958                         tprints("{}");
 959                         return 0;
 960                 }
 961                 cur = tcp->u_arg[2];
 962                 end = cur + (sizeof(int) * entries);
 963                 if (!verbose(tcp) || end < tcp->u_arg[2]) {
 964                         tprintf("%#lx", tcp->u_arg[2]);
 965                         return 0;
 966                 }
 967                 if (abbrev(tcp)) {
 968                         abbrev_end = cur + (sizeof(int) * max_strlen);
 969                         if (abbrev_end > end)
 970                                 abbrev_end = end;
 971                 }
 972                 else
 973                         abbrev_end = end;
 974                 tprints("{");
 975                 for (; cur < end; cur += sizeof(int)) {
 976                         if (cur > tcp->u_arg[2])
 977                                 tprints(", ");
 978                         if (cur >= abbrev_end) {
 979                                 tprints("...");
 980                                 break;
 981                         }
 982                         if (umove(tcp, cur, &entry) < 0) {
 983                                 tprintf("??? [%#lx]", cur);
 984                                 break;
 985                         }
 986                         else
 987                                 tprintf("%#08x", entry);
 988                 }
 989                 tprints("}");
 990         }
 991
 992         return 0;
 993 }
 994 #endif