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