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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 int
  47 sys_brk(struct tcb *tcp)
  48 {
  49         if (entering(tcp)) {
  50                 tprintf("%#lx", tcp->u_arg[0]);
  51         }
  52         return RVAL_HEX;
  53 }
  54
  55 static const struct xlat mmap_prot[] = {
  56         { PROT_NONE,    "PROT_NONE",    },
  57         { PROT_READ,    "PROT_READ"     },
  58         { PROT_WRITE,   "PROT_WRITE"    },
  59         { PROT_EXEC,    "PROT_EXEC"     },
  60 #ifdef PROT_SEM
  61         { PROT_SEM,     "PROT_SEM"      },
  62 #endif
  63 #ifdef PROT_GROWSDOWN
  64         { PROT_GROWSDOWN,"PROT_GROWSDOWN"},
  65 #endif
  66 #ifdef PROT_GROWSUP
  67         { PROT_GROWSUP, "PROT_GROWSUP"  },
  68 #endif
  69 #ifdef PROT_SAO
  70         { PROT_SAO,     "PROT_SAO"      },
  71 #endif
  72         { 0,            NULL            },
  73 };
  74
  75 static const struct xlat mmap_flags[] = {
  76         { MAP_SHARED,   "MAP_SHARED"    },
  77         { MAP_PRIVATE,  "MAP_PRIVATE"   },
  78         { MAP_FIXED,    "MAP_FIXED"     },
  79 #ifdef MAP_ANONYMOUS
  80         { MAP_ANONYMOUS,"MAP_ANONYMOUS" },
  81 #endif
  82 #ifdef MAP_32BIT
  83         { MAP_32BIT,    "MAP_32BIT"     },
  84 #endif
  85 #ifdef MAP_RENAME
  86         { MAP_RENAME,   "MAP_RENAME"    },
  87 #endif
  88 #ifdef MAP_NORESERVE
  89         { MAP_NORESERVE,"MAP_NORESERVE" },
  90 #endif
  91 #ifdef MAP_POPULATE
  92         { MAP_POPULATE, "MAP_POPULATE" },
  93 #endif
  94 #ifdef MAP_NONBLOCK
  95         { MAP_NONBLOCK, "MAP_NONBLOCK" },
  96 #endif
  97         /*
  98          * XXX - this was introduced in SunOS 4.x to distinguish between
  99          * the old pre-4.x "mmap()", which:
 100          *
 101          *      only let you map devices with an "mmap" routine (e.g.,
 102          *      frame buffers) in;
 103          *
 104          *      required you to specify the mapping address;
 105          *
 106          *      returned 0 on success and -1 on failure;
 107          *
 108          * memory and which, and the 4.x "mmap()" which:
 109          *
 110          *      can map plain files;
 111          *
 112          *      can be asked to pick where to map the file;
 113          *
 114          *      returns the address where it mapped the file on success
 115          *      and -1 on failure.
 116          *
 117          * It's not actually used in source code that calls "mmap()"; the
 118          * "mmap()" routine adds it for you.
 119          *
 120          * It'd be nice to come up with some way of eliminating it from
 121          * the flags, e.g. reporting calls *without* it as "old_mmap()"
 122          * and calls with it as "mmap()".
 123          */
 124 #ifdef _MAP_NEW
 125         { _MAP_NEW,     "_MAP_NEW"      },
 126 #endif
 127 #ifdef MAP_GROWSDOWN
 128         { MAP_GROWSDOWN,"MAP_GROWSDOWN" },
 129 #endif
 130 #ifdef MAP_DENYWRITE
 131         { MAP_DENYWRITE,"MAP_DENYWRITE" },
 132 #endif
 133 #ifdef MAP_EXECUTABLE
 134         { MAP_EXECUTABLE,"MAP_EXECUTABLE"},
 135 #endif
 136 #ifdef MAP_INHERIT
 137         { MAP_INHERIT,  "MAP_INHERIT"   },
 138 #endif
 139 #ifdef MAP_FILE
 140         { MAP_FILE,     "MAP_FILE"      },
 141 #endif
 142 #ifdef MAP_LOCKED
 143         { MAP_LOCKED,   "MAP_LOCKED"    },
 144 #endif
 145         /* FreeBSD ones */
 146 #if defined(MAP_ANON) && (!defined(MAP_ANONYMOUS) || MAP_ANON != MAP_ANONYMOUS)
 147         { MAP_ANON,     "MAP_ANON"      },
 148 #endif
 149 #ifdef MAP_HASSEMAPHORE
 150         { MAP_HASSEMAPHORE,"MAP_HASSEMAPHORE"},
 151 #endif
 152 #ifdef MAP_STACK
 153         { MAP_STACK,    "MAP_STACK"     },
 154 #endif
 155 #if defined MAP_UNINITIALIZED && MAP_UNINITIALIZED > 0
 156         { MAP_UNINITIALIZED,"MAP_UNINITIALIZED"},
 157 #endif
 158 #ifdef MAP_NOSYNC
 159         { MAP_NOSYNC,   "MAP_NOSYNC"    },
 160 #endif
 161 #ifdef MAP_NOCORE
 162         { MAP_NOCORE,   "MAP_NOCORE"    },
 163 #endif
 164 #ifdef TILE
 165         { MAP_CACHE_NO_LOCAL, "MAP_CACHE_NO_LOCAL" },
 166         { MAP_CACHE_NO_L2, "MAP_CACHE_NO_L2" },
 167         { MAP_CACHE_NO_L1, "MAP_CACHE_NO_L1" },
 168 #endif
 169         { 0,            NULL            },
 170 };
 171
 172 #ifdef TILE
 173 static int
 174 addtileflags(long flags)
 175 {
 176         long home = flags & _MAP_CACHE_MKHOME(_MAP_CACHE_HOME_MASK);
 177         flags &= ~_MAP_CACHE_MKHOME(_MAP_CACHE_HOME_MASK);
 178
 179         if (flags & _MAP_CACHE_INCOHERENT) {
 180                 flags &= ~_MAP_CACHE_INCOHERENT;
 181                 if (home == MAP_CACHE_HOME_NONE) {
 182                         tprints("|MAP_CACHE_INCOHERENT");
 183                         return flags;
 184                 }
 185                 tprints("|_MAP_CACHE_INCOHERENT");
 186         }
 187
 188         switch (home) {
 189         case 0: break;
 190         case MAP_CACHE_HOME_HERE: tprints("|MAP_CACHE_HOME_HERE"); break;
 191         case MAP_CACHE_HOME_NONE: tprints("|MAP_CACHE_HOME_NONE"); break;
 192         case MAP_CACHE_HOME_SINGLE: tprints("|MAP_CACHE_HOME_SINGLE"); break;
 193         case MAP_CACHE_HOME_TASK: tprints("|MAP_CACHE_HOME_TASK"); break;
 194         case MAP_CACHE_HOME_HASH: tprints("|MAP_CACHE_HOME_HASH"); break;
 195         default:
 196                 tprintf("|MAP_CACHE_HOME(%ld)",
 197                         (home >> _MAP_CACHE_HOME_SHIFT) );
 198                 break;
 199         }
 200
 201         return flags;
 202 }
 203 #endif
 204
 205 #if !HAVE_LONG_LONG_OFF_T
 206 static int
 207 print_mmap(struct tcb *tcp, long *u_arg, unsigned long long offset)
 208 {
 209         if (entering(tcp)) {
 210                 /* addr */
 211                 if (!u_arg[0])
 212                         tprints("NULL, ");
 213                 else
 214                         tprintf("%#lx, ", u_arg[0]);
 215                 /* len */
 216                 tprintf("%lu, ", u_arg[1]);
 217                 /* prot */
 218                 printflags(mmap_prot, u_arg[2], "PROT_???");
 219                 tprints(", ");
 220                 /* flags */
 221 #ifdef MAP_TYPE
 222                 printxval(mmap_flags, u_arg[3] & MAP_TYPE, "MAP_???");
 223 # ifdef TILE
 224                 addflags(mmap_flags, addtileflags(u_arg[3] & ~MAP_TYPE));
 225 # else
 226                 addflags(mmap_flags, u_arg[3] & ~MAP_TYPE);
 227 # endif
 228 #else
 229                 printflags(mmap_flags, u_arg[3], "MAP_???");
 230 #endif
 231                 tprints(", ");
 232                 /* fd */
 233                 printfd(tcp, u_arg[4]);
 234                 /* offset */
 235                 tprintf(", %#llx", offset);
 236         }
 237         return RVAL_HEX;
 238 }
 239
 240 int sys_old_mmap(struct tcb *tcp)
 241 {
 242 #if defined(IA64)
 243         /*
 244          * IA64 processes never call this routine, they only use the
 245          * new `sys_mmap' interface.
 246          * For IA32 processes, this code converts the integer arguments
 247          * that they pushed onto the stack, into longs.
 248          */
 249         int i;
 250         long u_arg[6];
 251         unsigned narrow_arg[6];
 252         if (umoven(tcp, tcp->u_arg[0], sizeof(narrow_arg), (char *) narrow_arg) == -1)
 253                 return 0;
 254         for (i = 0; i < 6; i++)
 255                 u_arg[i] = narrow_arg[i];
 256 #elif defined(SH) || defined(SH64)
 257         /* SH has always passed the args in registers */
 258         long *u_arg = tcp->u_arg;
 259 #elif defined(X86_64)
 260         long u_arg[6];
 261         if (current_personality == 1) {
 262                 int i;
 263                 unsigned narrow_arg[6];
 264                 if (umoven(tcp, tcp->u_arg[0], sizeof(narrow_arg), (char *) narrow_arg) == -1)
 265                         return 0;
 266                 for (i = 0; i < 6; ++i)
 267                         u_arg[i] = narrow_arg[i];
 268         } else {
 269                 if (umoven(tcp, tcp->u_arg[0], sizeof(u_arg), (char *) u_arg) == -1)
 270                         return 0;
 271         }
 272 #else
 273         long u_arg[6];
 274         if (umoven(tcp, tcp->u_arg[0], sizeof(u_arg), (char *) u_arg) == -1)
 275                 return 0;
 276 #endif
 277         return print_mmap(tcp, u_arg, (unsigned long)u_arg[5]);
 278 }
 279
 280 int
 281 sys_mmap(struct tcb *tcp)
 282 {
 283         long long offset = tcp->u_arg[5];
 284
 285         /* FIXME: why only SH64? i386 mmap2 syscall ends up
 286          * in this function, but does not convert offset
 287          * from pages to bytes. See test/mmap_offset_decode.c
 288          * Why SH64 and i386 are handled differently?
 289          */
 290 #if defined(SH64)
 291         /*
 292          * Old mmap differs from new mmap in specifying the
 293          * offset in units of bytes rather than pages.  We
 294          * pretend it's in byte units so the user only ever
 295          * sees bytes in the printout.
 296          */
 297         offset <<= PAGE_SHIFT;
 298 #endif
 299 #if defined(LINUX_MIPSN32)
 300         offset = tcp->ext_arg[5];
 301 #endif
 302         return print_mmap(tcp, tcp->u_arg, offset);
 303 }
 304 #endif /* !HAVE_LONG_LONG_OFF_T */
 305
 306 #if _LFS64_LARGEFILE || HAVE_LONG_LONG_OFF_T
 307 # if defined(X32)
 308 int sys_old_mmap(struct tcb *tcp)
 309 {
 310         long u_arg[6];
 311         if (umoven(tcp, tcp->u_arg[0], sizeof(u_arg), (char *) u_arg) == -1)
 312                 return 0;
 313         if (entering(tcp)) {
 314                 /* addr */
 315                 if (!u_arg[0])
 316                         tprints("NULL, ");
 317                 else
 318                         tprintf("%#lx, ", u_arg[0]);
 319                 /* len */
 320                 tprintf("%lu, ", u_arg[1]);
 321                 /* prot */
 322                 printflags(mmap_prot, u_arg[2], "PROT_???");
 323                 tprints(", ");
 324                 /* flags */
 325 #  ifdef MAP_TYPE
 326                 printxval(mmap_flags, u_arg[3] & MAP_TYPE, "MAP_???");
 327                 addflags(mmap_flags, u_arg[3] & ~MAP_TYPE);
 328 #  else
 329                 printflags(mmap_flags, u_arg[3], "MAP_???");
 330 #  endif
 331                 /* fd */
 332                 tprints(", ");
 333                 printfd(tcp, u_arg[4]);
 334                 /* offset */
 335                 tprintf(", %#lx", u_arg[5]);
 336         }
 337         return RVAL_HEX;
 338 }
 339 # endif
 340
 341 /* TODO: comment which arches use this routine.
 342  * For one, does ALPHA on Linux use this??
 343  * From code it seems that it might use 7 or 8 registers,
 344  * which is strange - Linux syscalls can pass maximum of 6 parameters!
 345  */
 346 # ifdef HAVE_LONG_LONG_OFF_T
 347 /* For systems that have a long long off_t,
 348  * sys_mmap in syscall tables is handled by sys_mmap64:
 349  */
 350 #  define sys_mmap64 sys_mmap
 351 # endif
 352 int
 353 sys_mmap64(struct tcb *tcp)
 354 {
 355         if (entering(tcp)) {
 356 #if defined(ALPHA) || defined(X32)
 357                 long *u_arg = tcp->u_arg;
 358 #else
 359                 long u_arg[7];
 360                 if (umoven(tcp, tcp->u_arg[0], sizeof u_arg,
 361                                 (char *) u_arg) == -1)
 362                         return 0;
 363 #endif
 364                 /* addr */
 365                 if (!u_arg[0])
 366                         tprints("NULL, ");
 367                 else
 368                         tprintf("%#lx, ", u_arg[0]);
 369                 /* len */
 370                 tprintf("%lu, ", u_arg[1]);
 371                 /* prot */
 372                 printflags(mmap_prot, u_arg[2], "PROT_???");
 373                 tprints(", ");
 374                 /* flags */
 375 #ifdef MAP_TYPE
 376                 printxval(mmap_flags, u_arg[3] & MAP_TYPE, "MAP_???");
 377                 addflags(mmap_flags, u_arg[3] & ~MAP_TYPE);
 378 #else
 379                 printflags(mmap_flags, u_arg[3], "MAP_???");
 380 #endif
 381                 /* fd */
 382                 tprints(", ");
 383                 printfd(tcp, u_arg[4]);
 384                 /* offset */
 385 #if defined(ALPHA) || defined(X32)
 386                 printllval(tcp, ", %#llx", 5);
 387 #else
 388                 /* NOTE: not verified that [5] and [6] should be used.
 389                  * It's possible that long long is 64-bit aligned in memory
 390                  * and we need to use [6] and [7] here instead:
 391                  */
 392                 tprintf(", %#llx", LONG_LONG(u_arg[5], u_arg[6]));
 393 #endif
 394         }
 395         return RVAL_HEX;
 396 }
 397 #endif /* _LFS64_LARGEFILE || HAVE_LONG_LONG_OFF_T */
 398
 399 int
 400 sys_munmap(struct tcb *tcp)
 401 {
 402         if (entering(tcp)) {
 403                 tprintf("%#lx, %lu",
 404                         tcp->u_arg[0], tcp->u_arg[1]);
 405         }
 406         return 0;
 407 }
 408
 409 int
 410 sys_mprotect(struct tcb *tcp)
 411 {
 412         if (entering(tcp)) {
 413                 tprintf("%#lx, %lu, ",
 414                         tcp->u_arg[0], tcp->u_arg[1]);
 415                 printflags(mmap_prot, tcp->u_arg[2], "PROT_???");
 416         }
 417         return 0;
 418 }
 419
 420 static const struct xlat mremap_flags[] = {
 421         { MREMAP_MAYMOVE,       "MREMAP_MAYMOVE"        },
 422 #ifdef MREMAP_FIXED
 423         { MREMAP_FIXED,         "MREMAP_FIXED"          },
 424 #endif
 425         { 0,                    NULL                    }
 426 };
 427
 428 int
 429 sys_mremap(struct tcb *tcp)
 430 {
 431         if (entering(tcp)) {
 432                 tprintf("%#lx, %lu, %lu, ", tcp->u_arg[0], tcp->u_arg[1],
 433                         tcp->u_arg[2]);
 434                 printflags(mremap_flags, tcp->u_arg[3], "MREMAP_???");
 435 #ifdef MREMAP_FIXED
 436                 if ((tcp->u_arg[3] & (MREMAP_MAYMOVE | MREMAP_FIXED)) ==
 437                     (MREMAP_MAYMOVE | MREMAP_FIXED))
 438                         tprintf(", %#lx", tcp->u_arg[4]);
 439 #endif
 440         }
 441         return RVAL_HEX;
 442 }
 443
 444 static const struct xlat madvise_cmds[] = {
 445 #ifdef MADV_NORMAL
 446         { MADV_NORMAL,          "MADV_NORMAL" },
 447 #endif
 448 #ifdef MADV_RANDOM
 449         { MADV_RANDOM,          "MADV_RANDOM" },
 450 #endif
 451 #ifdef MADV_SEQUENTIAL
 452         { MADV_SEQUENTIAL,      "MADV_SEQUENTIAL" },
 453 #endif
 454 #ifdef MADV_WILLNEED
 455         { MADV_WILLNEED,        "MADV_WILLNEED" },
 456 #endif
 457 #ifdef MADV_DONTNEED
 458         { MADV_DONTNEED,        "MADV_DONTNEED" },
 459 #endif
 460         { 0,                    NULL },
 461 };
 462
 463 int
 464 sys_madvise(struct tcb *tcp)
 465 {
 466         if (entering(tcp)) {
 467                 tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
 468                 printxval(madvise_cmds, tcp->u_arg[2], "MADV_???");
 469         }
 470         return 0;
 471 }
 472
 473 static const struct xlat mlockall_flags[] = {
 474 #ifdef MCL_CURRENT
 475         { MCL_CURRENT,  "MCL_CURRENT" },
 476 #endif
 477 #ifdef MCL_FUTURE
 478         { MCL_FUTURE,   "MCL_FUTURE" },
 479 #endif
 480         { 0,            NULL}
 481 };
 482
 483 int
 484 sys_mlockall(struct tcb *tcp)
 485 {
 486         if (entering(tcp)) {
 487                 printflags(mlockall_flags, tcp->u_arg[0], "MCL_???");
 488         }
 489         return 0;
 490 }
 491
 492 #ifdef MS_ASYNC
 493
 494 static const struct xlat mctl_sync[] = {
 495 #ifdef MS_SYNC
 496         { MS_SYNC,      "MS_SYNC"       },
 497 #endif
 498         { MS_ASYNC,     "MS_ASYNC"      },
 499         { MS_INVALIDATE,"MS_INVALIDATE" },
 500         { 0,            NULL            },
 501 };
 502
 503 int
 504 sys_msync(struct tcb *tcp)
 505 {
 506         if (entering(tcp)) {
 507                 /* addr */
 508                 tprintf("%#lx", tcp->u_arg[0]);
 509                 /* len */
 510                 tprintf(", %lu, ", tcp->u_arg[1]);
 511                 /* flags */
 512                 printflags(mctl_sync, tcp->u_arg[2], "MS_???");
 513         }
 514         return 0;
 515 }
 516
 517 #endif /* MS_ASYNC */
 518
 519 #ifdef MC_SYNC
 520
 521 static const struct xlat mctl_funcs[] = {
 522         { MC_LOCK,      "MC_LOCK"       },
 523         { MC_LOCKAS,    "MC_LOCKAS"     },
 524         { MC_SYNC,      "MC_SYNC"       },
 525         { MC_UNLOCK,    "MC_UNLOCK"     },
 526         { MC_UNLOCKAS,  "MC_UNLOCKAS"   },
 527         { 0,            NULL            },
 528 };
 529
 530 static const struct xlat mctl_lockas[] = {
 531         { MCL_CURRENT,  "MCL_CURRENT"   },
 532         { MCL_FUTURE,   "MCL_FUTURE"    },
 533         { 0,            NULL            },
 534 };
 535
 536 int
 537 sys_mctl(struct tcb *tcp)
 538 {
 539         int arg, function;
 540
 541         if (entering(tcp)) {
 542                 /* addr */
 543                 tprintf("%#lx", tcp->u_arg[0]);
 544                 /* len */
 545                 tprintf(", %lu, ", tcp->u_arg[1]);
 546                 /* function */
 547                 function = tcp->u_arg[2];
 548                 printflags(mctl_funcs, function, "MC_???");
 549                 /* arg */
 550                 arg = tcp->u_arg[3];
 551                 tprints(", ");
 552                 switch (function) {
 553                 case MC_SYNC:
 554                         printflags(mctl_sync, arg, "MS_???");
 555                         break;
 556                 case MC_LOCKAS:
 557                         printflags(mctl_lockas, arg, "MCL_???");
 558                         break;
 559                 default:
 560                         tprintf("%#x", arg);
 561                         break;
 562                 }
 563         }
 564         return 0;
 565 }
 566
 567 #endif /* MC_SYNC */
 568
 569 int
 570 sys_mincore(struct tcb *tcp)
 571 {
 572         if (entering(tcp)) {
 573                 tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
 574         } else {
 575                 unsigned long i, len;
 576                 char *vec = NULL;
 577
 578                 len = tcp->u_arg[1];
 579                 if (syserror(tcp) || tcp->u_arg[2] == 0 ||
 580                         (vec = malloc(len)) == NULL ||
 581                         umoven(tcp, tcp->u_arg[2], len, vec) < 0)
 582                         tprintf("%#lx", tcp->u_arg[2]);
 583                 else {
 584                         tprints("[");
 585                         for (i = 0; i < len; i++) {
 586                                 if (abbrev(tcp) && i >= max_strlen) {
 587                                         tprints("...");
 588                                         break;
 589                                 }
 590                                 tprints((vec[i] & 1) ? "1" : "0");
 591                         }
 592                         tprints("]");
 593                 }
 594                 free(vec);
 595         }
 596         return 0;
 597 }
 598
 599 #if defined(ALPHA) || defined(IA64) || defined(SPARC) || defined(SPARC64)
 600 int
 601 sys_getpagesize(struct tcb *tcp)
 602 {
 603         if (exiting(tcp))
 604                 return RVAL_HEX;
 605         return 0;
 606 }
 607 #endif
 608
 609 #if defined(I386)
 610 void
 611 print_ldt_entry(struct modify_ldt_ldt_s *ldt_entry)
 612 {
 613         tprintf("base_addr:%#08lx, "
 614                 "limit:%d, "
 615                 "seg_32bit:%d, "
 616                 "contents:%d, "
 617                 "read_exec_only:%d, "
 618                 "limit_in_pages:%d, "
 619                 "seg_not_present:%d, "
 620                 "useable:%d}",
 621                 (long) ldt_entry->base_addr,
 622                 ldt_entry->limit,
 623                 ldt_entry->seg_32bit,
 624                 ldt_entry->contents,
 625                 ldt_entry->read_exec_only,
 626                 ldt_entry->limit_in_pages,
 627                 ldt_entry->seg_not_present,
 628                 ldt_entry->useable);
 629 }
 630
 631 int
 632 sys_modify_ldt(struct tcb *tcp)
 633 {
 634         if (entering(tcp)) {
 635                 struct modify_ldt_ldt_s copy;
 636                 tprintf("%ld", tcp->u_arg[0]);
 637                 if (tcp->u_arg[1] == 0
 638                                 || tcp->u_arg[2] != sizeof(struct modify_ldt_ldt_s)
 639                                 || umove(tcp, tcp->u_arg[1], &copy) == -1)
 640                         tprintf(", %lx", tcp->u_arg[1]);
 641                 else {
 642                         tprintf(", {entry_number:%d, ", copy.entry_number);
 643                         if (!verbose(tcp))
 644                                 tprints("...}");
 645                         else {
 646                                 print_ldt_entry(&copy);
 647                         }
 648                 }
 649                 tprintf(", %lu", tcp->u_arg[2]);
 650         }
 651         return 0;
 652 }
 653
 654 int
 655 sys_set_thread_area(struct tcb *tcp)
 656 {
 657         struct modify_ldt_ldt_s copy;
 658         if (entering(tcp)) {
 659                 if (umove(tcp, tcp->u_arg[0], &copy) != -1) {
 660                         if (copy.entry_number == -1)
 661                                 tprintf("{entry_number:%d -> ",
 662                                         copy.entry_number);
 663                         else
 664                                 tprints("{entry_number:");
 665                 }
 666         } else {
 667                 if (umove(tcp, tcp->u_arg[0], &copy) != -1) {
 668                         tprintf("%d, ", copy.entry_number);
 669                         if (!verbose(tcp))
 670                                 tprints("...}");
 671                         else {
 672                                 print_ldt_entry(&copy);
 673                         }
 674                 } else {
 675                         tprintf("%lx", tcp->u_arg[0]);
 676                 }
 677         }
 678         return 0;
 679
 680 }
 681
 682 int
 683 sys_get_thread_area(struct tcb *tcp)
 684 {
 685         struct modify_ldt_ldt_s copy;
 686         if (exiting(tcp)) {
 687                 if (umove(tcp, tcp->u_arg[0], &copy) != -1) {
 688                         tprintf("{entry_number:%d, ", copy.entry_number);
 689                         if (!verbose(tcp))
 690                                 tprints("...}");
 691                         else {
 692                                 print_ldt_entry(&copy);
 693                         }
 694                 } else {
 695                         tprintf("%lx", tcp->u_arg[0]);
 696                 }
 697         }
 698         return 0;
 699
 700 }
 701 #endif /* I386 */
 702
 703 #if defined(M68K)
 704 int
 705 sys_set_thread_area(struct tcb *tcp)
 706 {
 707         if (entering(tcp))
 708                 tprintf("%#lx", tcp->u_arg[0]);
 709         return 0;
 710
 711 }
 712
 713 int
 714 sys_get_thread_area(struct tcb *tcp)
 715 {
 716         return RVAL_HEX;
 717 }
 718 #endif
 719
 720 int
 721 sys_remap_file_pages(struct tcb *tcp)
 722 {
 723         if (entering(tcp)) {
 724                 tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
 725                 printflags(mmap_prot, tcp->u_arg[2], "PROT_???");
 726                 tprintf(", %lu, ", tcp->u_arg[3]);
 727 #ifdef MAP_TYPE
 728                 printxval(mmap_flags, tcp->u_arg[4] & MAP_TYPE, "MAP_???");
 729                 addflags(mmap_flags, tcp->u_arg[4] & ~MAP_TYPE);
 730 #else
 731                 printflags(mmap_flags, tcp->u_arg[4], "MAP_???");
 732 #endif
 733         }
 734         return 0;
 735 }
 736
 737 #define MPOL_DEFAULT    0
 738 #define MPOL_PREFERRED  1
 739 #define MPOL_BIND       2
 740 #define MPOL_INTERLEAVE 3
 741
 742 #define MPOL_F_NODE     (1<<0)
 743 #define MPOL_F_ADDR     (1<<1)
 744
 745 #define MPOL_MF_STRICT  (1<<0)
 746 #define MPOL_MF_MOVE    (1<<1)
 747 #define MPOL_MF_MOVE_ALL (1<<2)
 748
 749 static const struct xlat policies[] = {
 750         { MPOL_DEFAULT,         "MPOL_DEFAULT"          },
 751         { MPOL_PREFERRED,       "MPOL_PREFERRED"        },
 752         { MPOL_BIND,            "MPOL_BIND"             },
 753         { MPOL_INTERLEAVE,      "MPOL_INTERLEAVE"       },
 754         { 0,                    NULL                    }
 755 };
 756
 757 static const struct xlat mbindflags[] = {
 758         { MPOL_MF_STRICT,       "MPOL_MF_STRICT"        },
 759         { MPOL_MF_MOVE,         "MPOL_MF_MOVE"          },
 760         { MPOL_MF_MOVE_ALL,     "MPOL_MF_MOVE_ALL"      },
 761         { 0,                    NULL                    }
 762 };
 763
 764 static const struct xlat mempolicyflags[] = {
 765         { MPOL_F_NODE,          "MPOL_F_NODE"           },
 766         { MPOL_F_ADDR,          "MPOL_F_ADDR"           },
 767         { 0,                    NULL                    }
 768 };
 769
 770 static const struct xlat move_pages_flags[] = {
 771         { MPOL_MF_MOVE,         "MPOL_MF_MOVE"          },
 772         { MPOL_MF_MOVE_ALL,     "MPOL_MF_MOVE_ALL"      },
 773         { 0,                    NULL                    }
 774 };
 775
 776 static void
 777 get_nodes(struct tcb *tcp, unsigned long ptr, unsigned long maxnodes, int err)
 778 {
 779         unsigned long nlongs, size, end;
 780
 781         nlongs = (maxnodes + 8 * sizeof(long) - 1) / (8 * sizeof(long));
 782         size = nlongs * sizeof(long);
 783         end = ptr + size;
 784         if (nlongs == 0 || ((err || verbose(tcp)) && (size * 8 == maxnodes)
 785                             && (end > ptr))) {
 786                 unsigned long n, cur, abbrev_end;
 787                 int failed = 0;
 788
 789                 if (abbrev(tcp)) {
 790                         abbrev_end = ptr + max_strlen * sizeof(long);
 791                         if (abbrev_end < ptr)
 792                                 abbrev_end = end;
 793                 } else {
 794                         abbrev_end = end;
 795                 }
 796                 tprints(", {");
 797                 for (cur = ptr; cur < end; cur += sizeof(long)) {
 798                         if (cur > ptr)
 799                                 tprints(", ");
 800                         if (cur >= abbrev_end) {
 801                                 tprints("...");
 802                                 break;
 803                         }
 804                         if (umoven(tcp, cur, sizeof(n), (char *) &n) < 0) {
 805                                 tprints("?");
 806                                 failed = 1;
 807                                 break;
 808                         }
 809                         tprintf("%#0*lx", (int) sizeof(long) * 2 + 2, n);
 810                 }
 811                 tprints("}");
 812                 if (failed)
 813                         tprintf(" %#lx", ptr);
 814         } else
 815                 tprintf(", %#lx", ptr);
 816         tprintf(", %lu", maxnodes);
 817 }
 818
 819 int
 820 sys_mbind(struct tcb *tcp)
 821 {
 822         if (entering(tcp)) {
 823                 tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
 824                 printxval(policies, tcp->u_arg[2], "MPOL_???");
 825                 get_nodes(tcp, tcp->u_arg[3], tcp->u_arg[4], 0);
 826                 tprints(", ");
 827                 printflags(mbindflags, tcp->u_arg[5], "MPOL_???");
 828         }
 829         return 0;
 830 }
 831
 832 int
 833 sys_set_mempolicy(struct tcb *tcp)
 834 {
 835         if (entering(tcp)) {
 836                 printxval(policies, tcp->u_arg[0], "MPOL_???");
 837                 get_nodes(tcp, tcp->u_arg[1], tcp->u_arg[2], 0);
 838         }
 839         return 0;
 840 }
 841
 842 int
 843 sys_get_mempolicy(struct tcb *tcp)
 844 {
 845         if (exiting(tcp)) {
 846                 int pol;
 847                 if (tcp->u_arg[0] == 0)
 848                         tprints("NULL");
 849                 else if (syserror(tcp) || umove(tcp, tcp->u_arg[0], &pol) < 0)
 850                         tprintf("%#lx", tcp->u_arg[0]);
 851                 else
 852                         printxval(policies, pol, "MPOL_???");
 853                 get_nodes(tcp, tcp->u_arg[1], tcp->u_arg[2], syserror(tcp));
 854                 tprintf(", %#lx, ", tcp->u_arg[3]);
 855                 printflags(mempolicyflags, tcp->u_arg[4], "MPOL_???");
 856         }
 857         return 0;
 858 }
 859
 860 int
 861 sys_migrate_pages(struct tcb *tcp)
 862 {
 863         if (entering(tcp)) {
 864                 tprintf("%ld, ", (long) (pid_t) tcp->u_arg[0]);
 865                 get_nodes(tcp, tcp->u_arg[2], tcp->u_arg[1], 0);
 866                 tprints(", ");
 867                 get_nodes(tcp, tcp->u_arg[3], tcp->u_arg[1], 0);
 868         }
 869         return 0;
 870 }
 871
 872 int
 873 sys_move_pages(struct tcb *tcp)
 874 {
 875         if (entering(tcp)) {
 876                 unsigned long npages = tcp->u_arg[1];
 877                 tprintf("%ld, %lu, ", tcp->u_arg[0], npages);
 878                 if (tcp->u_arg[2] == 0)
 879                         tprints("NULL, ");
 880                 else {
 881                         int i;
 882                         long puser = tcp->u_arg[2];
 883                         tprints("{");
 884                         for (i = 0; i < npages; ++i) {
 885                                 void *p;
 886                                 if (i > 0)
 887                                         tprints(", ");
 888                                 if (umove(tcp, puser, &p) < 0) {
 889                                         tprints("???");
 890                                         break;
 891                                 }
 892                                 tprintf("%p", p);
 893                                 puser += sizeof(void *);
 894                         }
 895                         tprints("}, ");
 896                 }
 897                 if (tcp->u_arg[3] == 0)
 898                         tprints("NULL, ");
 899                 else {
 900                         int i;
 901                         long nodeuser = tcp->u_arg[3];
 902                         tprints("{");
 903                         for (i = 0; i < npages; ++i) {
 904                                 int node;
 905                                 if (i > 0)
 906                                         tprints(", ");
 907                                 if (umove(tcp, nodeuser, &node) < 0) {
 908                                         tprints("???");
 909                                         break;
 910                                 }
 911                                 tprintf("%#x", node);
 912                                 nodeuser += sizeof(int);
 913                         }
 914                         tprints("}, ");
 915                 }
 916         }
 917         if (exiting(tcp)) {
 918                 unsigned long npages = tcp->u_arg[1];
 919                 if (tcp->u_arg[4] == 0)
 920                         tprints("NULL, ");
 921                 else {
 922                         int i;
 923                         long statususer = tcp->u_arg[4];
 924                         tprints("{");
 925                         for (i = 0; i < npages; ++i) {
 926                                 int status;
 927                                 if (i > 0)
 928                                         tprints(", ");
 929                                 if (umove(tcp, statususer, &status) < 0) {
 930                                         tprints("???");
 931                                         break;
 932                                 }
 933                                 tprintf("%#x", status);
 934                                 statususer += sizeof(int);
 935                         }
 936                         tprints("}, ");
 937                 }
 938                 printflags(move_pages_flags, tcp->u_arg[5], "MPOL_???");
 939         }
 940         return 0;
 941 }
 942
 943 #if defined(POWERPC)
 944 int
 945 sys_subpage_prot(struct tcb *tcp)
 946 {
 947         if (entering(tcp)) {
 948                 unsigned long cur, end, abbrev_end, entries;
 949                 unsigned int entry;
 950
 951                 tprintf("%#lx, %#lx, ", tcp->u_arg[0], tcp->u_arg[1]);
 952                 entries = tcp->u_arg[1] >> 16;
 953                 if (!entries || !tcp->u_arg[2]) {
 954                         tprints("{}");
 955                         return 0;
 956                 }
 957                 cur = tcp->u_arg[2];
 958                 end = cur + (sizeof(int) * entries);
 959                 if (!verbose(tcp) || end < tcp->u_arg[2]) {
 960                         tprintf("%#lx", tcp->u_arg[2]);
 961                         return 0;
 962                 }
 963                 if (abbrev(tcp)) {
 964                         abbrev_end = cur + (sizeof(int) * max_strlen);
 965                         if (abbrev_end > end)
 966                                 abbrev_end = end;
 967                 }
 968                 else
 969                         abbrev_end = end;
 970                 tprints("{");
 971                 for (; cur < end; cur += sizeof(int)) {
 972                         if (cur > tcp->u_arg[2])
 973                                 tprints(", ");
 974                         if (cur >= abbrev_end) {
 975                                 tprints("...");
 976                                 break;
 977                         }
 978                         if (umove(tcp, cur, &entry) < 0) {
 979                                 tprintf("??? [%#lx]", cur);
 980                                 break;
 981                         }
 982                         else
 983                                 tprintf("%#08x", entry);
 984                 }
 985                 tprints("}");
 986         }
 987
 988         return 0;
 989 }
 990 #endif