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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         unsigned long long offset = (unsigned long) tcp->u_arg[5];
 284
 285 #if defined(SH64)
 286         /*
 287          * Old mmap differs from new mmap in specifying the
 288          * offset in units of bytes rather than pages.  We
 289          * pretend it's in byte units so the user only ever
 290          * sees bytes in the printout.
 291          */
 292         offset <<= PAGE_SHIFT;
 293 #elif defined(I386)
 294         /* Try test/mmap_offset_decode.c */
 295         offset <<= 12; /* 4096 byte pages */
 296 #elif defined(LINUX_MIPSN32) || defined(X32)
 297         /* Try test/x32_mmap.c */
 298         /* At least for X32 it definitely should not be page-shifted! */
 299         offset = tcp->ext_arg[5];
 300 #endif
 301         return print_mmap(tcp, tcp->u_arg, offset);
 302 }
 303 #endif /* !HAVE_LONG_LONG_OFF_T */
 304
 305 #if _LFS64_LARGEFILE || HAVE_LONG_LONG_OFF_T
 306 /* TODO: comment which arches use this routine.
 307  * For one, does ALPHA on Linux use this??
 308  * From code it seems that it might use 7 or 8 registers,
 309  * which is strange - Linux syscalls can pass maximum of 6 parameters!
 310  */
 311 # ifdef HAVE_LONG_LONG_OFF_T
 312 /* For systems that have a long long off_t,
 313  * sys_mmap in syscall tables is handled by sys_mmap64:
 314  */
 315 #  define sys_mmap64 sys_mmap
 316 # endif
 317 int
 318 sys_mmap64(struct tcb *tcp)
 319 {
 320         if (entering(tcp)) {
 321 #if defined(ALPHA) || defined(X32)
 322                 long *u_arg = tcp->u_arg;
 323 #else
 324                 long u_arg[7];
 325                 if (umoven(tcp, tcp->u_arg[0], sizeof u_arg,
 326                                 (char *) u_arg) == -1)
 327                         return 0;
 328 #endif
 329                 /* addr */
 330                 if (!u_arg[0])
 331                         tprints("NULL, ");
 332                 else
 333                         tprintf("%#lx, ", u_arg[0]);
 334                 /* len */
 335                 tprintf("%lu, ", u_arg[1]);
 336                 /* prot */
 337                 printflags(mmap_prot, u_arg[2], "PROT_???");
 338                 tprints(", ");
 339                 /* flags */
 340 #ifdef MAP_TYPE
 341                 printxval(mmap_flags, u_arg[3] & MAP_TYPE, "MAP_???");
 342                 addflags(mmap_flags, u_arg[3] & ~MAP_TYPE);
 343 #else
 344                 printflags(mmap_flags, u_arg[3], "MAP_???");
 345 #endif
 346                 /* fd */
 347                 tprints(", ");
 348                 printfd(tcp, u_arg[4]);
 349                 /* offset */
 350 #if defined(ALPHA) || defined(X32)
 351                 printllval(tcp, ", %#llx", 5);
 352 #else
 353                 /* NOTE: not verified that [5] and [6] should be used.
 354                  * It's possible that long long is 64-bit aligned in memory
 355                  * and we need to use [6] and [7] here instead:
 356                  */
 357                 tprintf(", %#llx", LONG_LONG(u_arg[5], u_arg[6]));
 358 #endif
 359         }
 360         return RVAL_HEX;
 361 }
 362 #endif /* _LFS64_LARGEFILE || HAVE_LONG_LONG_OFF_T */
 363
 364 int
 365 sys_munmap(struct tcb *tcp)
 366 {
 367         if (entering(tcp)) {
 368                 tprintf("%#lx, %lu",
 369                         tcp->u_arg[0], tcp->u_arg[1]);
 370         }
 371         return 0;
 372 }
 373
 374 int
 375 sys_mprotect(struct tcb *tcp)
 376 {
 377         if (entering(tcp)) {
 378                 tprintf("%#lx, %lu, ",
 379                         tcp->u_arg[0], tcp->u_arg[1]);
 380                 printflags(mmap_prot, tcp->u_arg[2], "PROT_???");
 381         }
 382         return 0;
 383 }
 384
 385 static const struct xlat mremap_flags[] = {
 386         { MREMAP_MAYMOVE,       "MREMAP_MAYMOVE"        },
 387 #ifdef MREMAP_FIXED
 388         { MREMAP_FIXED,         "MREMAP_FIXED"          },
 389 #endif
 390         { 0,                    NULL                    }
 391 };
 392
 393 int
 394 sys_mremap(struct tcb *tcp)
 395 {
 396         if (entering(tcp)) {
 397                 tprintf("%#lx, %lu, %lu, ", tcp->u_arg[0], tcp->u_arg[1],
 398                         tcp->u_arg[2]);
 399                 printflags(mremap_flags, tcp->u_arg[3], "MREMAP_???");
 400 #ifdef MREMAP_FIXED
 401                 if ((tcp->u_arg[3] & (MREMAP_MAYMOVE | MREMAP_FIXED)) ==
 402                     (MREMAP_MAYMOVE | MREMAP_FIXED))
 403                         tprintf(", %#lx", tcp->u_arg[4]);
 404 #endif
 405         }
 406         return RVAL_HEX;
 407 }
 408
 409 static const struct xlat madvise_cmds[] = {
 410 #ifdef MADV_NORMAL
 411         { MADV_NORMAL,          "MADV_NORMAL" },
 412 #endif
 413 #ifdef MADV_RANDOM
 414         { MADV_RANDOM,          "MADV_RANDOM" },
 415 #endif
 416 #ifdef MADV_SEQUENTIAL
 417         { MADV_SEQUENTIAL,      "MADV_SEQUENTIAL" },
 418 #endif
 419 #ifdef MADV_WILLNEED
 420         { MADV_WILLNEED,        "MADV_WILLNEED" },
 421 #endif
 422 #ifdef MADV_DONTNEED
 423         { MADV_DONTNEED,        "MADV_DONTNEED" },
 424 #endif
 425         { 0,                    NULL },
 426 };
 427
 428 int
 429 sys_madvise(struct tcb *tcp)
 430 {
 431         if (entering(tcp)) {
 432                 tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
 433                 printxval(madvise_cmds, tcp->u_arg[2], "MADV_???");
 434         }
 435         return 0;
 436 }
 437
 438 static const struct xlat mlockall_flags[] = {
 439 #ifdef MCL_CURRENT
 440         { MCL_CURRENT,  "MCL_CURRENT" },
 441 #endif
 442 #ifdef MCL_FUTURE
 443         { MCL_FUTURE,   "MCL_FUTURE" },
 444 #endif
 445         { 0,            NULL}
 446 };
 447
 448 int
 449 sys_mlockall(struct tcb *tcp)
 450 {
 451         if (entering(tcp)) {
 452                 printflags(mlockall_flags, tcp->u_arg[0], "MCL_???");
 453         }
 454         return 0;
 455 }
 456
 457 #ifdef MS_ASYNC
 458
 459 static const struct xlat mctl_sync[] = {
 460 #ifdef MS_SYNC
 461         { MS_SYNC,      "MS_SYNC"       },
 462 #endif
 463         { MS_ASYNC,     "MS_ASYNC"      },
 464         { MS_INVALIDATE,"MS_INVALIDATE" },
 465         { 0,            NULL            },
 466 };
 467
 468 int
 469 sys_msync(struct tcb *tcp)
 470 {
 471         if (entering(tcp)) {
 472                 /* addr */
 473                 tprintf("%#lx", tcp->u_arg[0]);
 474                 /* len */
 475                 tprintf(", %lu, ", tcp->u_arg[1]);
 476                 /* flags */
 477                 printflags(mctl_sync, tcp->u_arg[2], "MS_???");
 478         }
 479         return 0;
 480 }
 481
 482 #endif /* MS_ASYNC */
 483
 484 #ifdef MC_SYNC
 485
 486 static const struct xlat mctl_funcs[] = {
 487         { MC_LOCK,      "MC_LOCK"       },
 488         { MC_LOCKAS,    "MC_LOCKAS"     },
 489         { MC_SYNC,      "MC_SYNC"       },
 490         { MC_UNLOCK,    "MC_UNLOCK"     },
 491         { MC_UNLOCKAS,  "MC_UNLOCKAS"   },
 492         { 0,            NULL            },
 493 };
 494
 495 static const struct xlat mctl_lockas[] = {
 496         { MCL_CURRENT,  "MCL_CURRENT"   },
 497         { MCL_FUTURE,   "MCL_FUTURE"    },
 498         { 0,            NULL            },
 499 };
 500
 501 int
 502 sys_mctl(struct tcb *tcp)
 503 {
 504         int arg, function;
 505
 506         if (entering(tcp)) {
 507                 /* addr */
 508                 tprintf("%#lx", tcp->u_arg[0]);
 509                 /* len */
 510                 tprintf(", %lu, ", tcp->u_arg[1]);
 511                 /* function */
 512                 function = tcp->u_arg[2];
 513                 printflags(mctl_funcs, function, "MC_???");
 514                 /* arg */
 515                 arg = tcp->u_arg[3];
 516                 tprints(", ");
 517                 switch (function) {
 518                 case MC_SYNC:
 519                         printflags(mctl_sync, arg, "MS_???");
 520                         break;
 521                 case MC_LOCKAS:
 522                         printflags(mctl_lockas, arg, "MCL_???");
 523                         break;
 524                 default:
 525                         tprintf("%#x", arg);
 526                         break;
 527                 }
 528         }
 529         return 0;
 530 }
 531
 532 #endif /* MC_SYNC */
 533
 534 int
 535 sys_mincore(struct tcb *tcp)
 536 {
 537         if (entering(tcp)) {
 538                 tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
 539         } else {
 540                 unsigned long i, len;
 541                 char *vec = NULL;
 542
 543                 len = tcp->u_arg[1];
 544                 if (syserror(tcp) || tcp->u_arg[2] == 0 ||
 545                         (vec = malloc(len)) == NULL ||
 546                         umoven(tcp, tcp->u_arg[2], len, vec) < 0)
 547                         tprintf("%#lx", tcp->u_arg[2]);
 548                 else {
 549                         tprints("[");
 550                         for (i = 0; i < len; i++) {
 551                                 if (abbrev(tcp) && i >= max_strlen) {
 552                                         tprints("...");
 553                                         break;
 554                                 }
 555                                 tprints((vec[i] & 1) ? "1" : "0");
 556                         }
 557                         tprints("]");
 558                 }
 559                 free(vec);
 560         }
 561         return 0;
 562 }
 563
 564 #if defined(ALPHA) || defined(IA64) || defined(SPARC) || defined(SPARC64)
 565 int
 566 sys_getpagesize(struct tcb *tcp)
 567 {
 568         if (exiting(tcp))
 569                 return RVAL_HEX;
 570         return 0;
 571 }
 572 #endif
 573
 574 #if defined(I386)
 575 void
 576 print_ldt_entry(struct modify_ldt_ldt_s *ldt_entry)
 577 {
 578         tprintf("base_addr:%#08lx, "
 579                 "limit:%d, "
 580                 "seg_32bit:%d, "
 581                 "contents:%d, "
 582                 "read_exec_only:%d, "
 583                 "limit_in_pages:%d, "
 584                 "seg_not_present:%d, "
 585                 "useable:%d}",
 586                 (long) ldt_entry->base_addr,
 587                 ldt_entry->limit,
 588                 ldt_entry->seg_32bit,
 589                 ldt_entry->contents,
 590                 ldt_entry->read_exec_only,
 591                 ldt_entry->limit_in_pages,
 592                 ldt_entry->seg_not_present,
 593                 ldt_entry->useable);
 594 }
 595
 596 int
 597 sys_modify_ldt(struct tcb *tcp)
 598 {
 599         if (entering(tcp)) {
 600                 struct modify_ldt_ldt_s copy;
 601                 tprintf("%ld", tcp->u_arg[0]);
 602                 if (tcp->u_arg[1] == 0
 603                                 || tcp->u_arg[2] != sizeof(struct modify_ldt_ldt_s)
 604                                 || umove(tcp, tcp->u_arg[1], &copy) == -1)
 605                         tprintf(", %lx", tcp->u_arg[1]);
 606                 else {
 607                         tprintf(", {entry_number:%d, ", copy.entry_number);
 608                         if (!verbose(tcp))
 609                                 tprints("...}");
 610                         else {
 611                                 print_ldt_entry(&copy);
 612                         }
 613                 }
 614                 tprintf(", %lu", tcp->u_arg[2]);
 615         }
 616         return 0;
 617 }
 618
 619 int
 620 sys_set_thread_area(struct tcb *tcp)
 621 {
 622         struct modify_ldt_ldt_s copy;
 623         if (entering(tcp)) {
 624                 if (umove(tcp, tcp->u_arg[0], &copy) != -1) {
 625                         if (copy.entry_number == -1)
 626                                 tprintf("{entry_number:%d -> ",
 627                                         copy.entry_number);
 628                         else
 629                                 tprints("{entry_number:");
 630                 }
 631         } else {
 632                 if (umove(tcp, tcp->u_arg[0], &copy) != -1) {
 633                         tprintf("%d, ", copy.entry_number);
 634                         if (!verbose(tcp))
 635                                 tprints("...}");
 636                         else {
 637                                 print_ldt_entry(&copy);
 638                         }
 639                 } else {
 640                         tprintf("%lx", tcp->u_arg[0]);
 641                 }
 642         }
 643         return 0;
 644
 645 }
 646
 647 int
 648 sys_get_thread_area(struct tcb *tcp)
 649 {
 650         struct modify_ldt_ldt_s copy;
 651         if (exiting(tcp)) {
 652                 if (umove(tcp, tcp->u_arg[0], &copy) != -1) {
 653                         tprintf("{entry_number:%d, ", copy.entry_number);
 654                         if (!verbose(tcp))
 655                                 tprints("...}");
 656                         else {
 657                                 print_ldt_entry(&copy);
 658                         }
 659                 } else {
 660                         tprintf("%lx", tcp->u_arg[0]);
 661                 }
 662         }
 663         return 0;
 664
 665 }
 666 #endif /* I386 */
 667
 668 #if defined(M68K)
 669 int
 670 sys_set_thread_area(struct tcb *tcp)
 671 {
 672         if (entering(tcp))
 673                 tprintf("%#lx", tcp->u_arg[0]);
 674         return 0;
 675
 676 }
 677
 678 int
 679 sys_get_thread_area(struct tcb *tcp)
 680 {
 681         return RVAL_HEX;
 682 }
 683 #endif
 684
 685 int
 686 sys_remap_file_pages(struct tcb *tcp)
 687 {
 688         if (entering(tcp)) {
 689                 tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
 690                 printflags(mmap_prot, tcp->u_arg[2], "PROT_???");
 691                 tprintf(", %lu, ", tcp->u_arg[3]);
 692 #ifdef MAP_TYPE
 693                 printxval(mmap_flags, tcp->u_arg[4] & MAP_TYPE, "MAP_???");
 694                 addflags(mmap_flags, tcp->u_arg[4] & ~MAP_TYPE);
 695 #else
 696                 printflags(mmap_flags, tcp->u_arg[4], "MAP_???");
 697 #endif
 698         }
 699         return 0;
 700 }
 701
 702 #define MPOL_DEFAULT    0
 703 #define MPOL_PREFERRED  1
 704 #define MPOL_BIND       2
 705 #define MPOL_INTERLEAVE 3
 706
 707 #define MPOL_F_NODE     (1<<0)
 708 #define MPOL_F_ADDR     (1<<1)
 709
 710 #define MPOL_MF_STRICT  (1<<0)
 711 #define MPOL_MF_MOVE    (1<<1)
 712 #define MPOL_MF_MOVE_ALL (1<<2)
 713
 714 static const struct xlat policies[] = {
 715         { MPOL_DEFAULT,         "MPOL_DEFAULT"          },
 716         { MPOL_PREFERRED,       "MPOL_PREFERRED"        },
 717         { MPOL_BIND,            "MPOL_BIND"             },
 718         { MPOL_INTERLEAVE,      "MPOL_INTERLEAVE"       },
 719         { 0,                    NULL                    }
 720 };
 721
 722 static const struct xlat mbindflags[] = {
 723         { MPOL_MF_STRICT,       "MPOL_MF_STRICT"        },
 724         { MPOL_MF_MOVE,         "MPOL_MF_MOVE"          },
 725         { MPOL_MF_MOVE_ALL,     "MPOL_MF_MOVE_ALL"      },
 726         { 0,                    NULL                    }
 727 };
 728
 729 static const struct xlat mempolicyflags[] = {
 730         { MPOL_F_NODE,          "MPOL_F_NODE"           },
 731         { MPOL_F_ADDR,          "MPOL_F_ADDR"           },
 732         { 0,                    NULL                    }
 733 };
 734
 735 static const struct xlat move_pages_flags[] = {
 736         { MPOL_MF_MOVE,         "MPOL_MF_MOVE"          },
 737         { MPOL_MF_MOVE_ALL,     "MPOL_MF_MOVE_ALL"      },
 738         { 0,                    NULL                    }
 739 };
 740
 741 static void
 742 get_nodes(struct tcb *tcp, unsigned long ptr, unsigned long maxnodes, int err)
 743 {
 744         unsigned long nlongs, size, end;
 745
 746         nlongs = (maxnodes + 8 * sizeof(long) - 1) / (8 * sizeof(long));
 747         size = nlongs * sizeof(long);
 748         end = ptr + size;
 749         if (nlongs == 0 || ((err || verbose(tcp)) && (size * 8 == maxnodes)
 750                             && (end > ptr))) {
 751                 unsigned long n, cur, abbrev_end;
 752                 int failed = 0;
 753
 754                 if (abbrev(tcp)) {
 755                         abbrev_end = ptr + max_strlen * sizeof(long);
 756                         if (abbrev_end < ptr)
 757                                 abbrev_end = end;
 758                 } else {
 759                         abbrev_end = end;
 760                 }
 761                 tprints(", {");
 762                 for (cur = ptr; cur < end; cur += sizeof(long)) {
 763                         if (cur > ptr)
 764                                 tprints(", ");
 765                         if (cur >= abbrev_end) {
 766                                 tprints("...");
 767                                 break;
 768                         }
 769                         if (umoven(tcp, cur, sizeof(n), (char *) &n) < 0) {
 770                                 tprints("?");
 771                                 failed = 1;
 772                                 break;
 773                         }
 774                         tprintf("%#0*lx", (int) sizeof(long) * 2 + 2, n);
 775                 }
 776                 tprints("}");
 777                 if (failed)
 778                         tprintf(" %#lx", ptr);
 779         } else
 780                 tprintf(", %#lx", ptr);
 781         tprintf(", %lu", maxnodes);
 782 }
 783
 784 int
 785 sys_mbind(struct tcb *tcp)
 786 {
 787         if (entering(tcp)) {
 788                 tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
 789                 printxval(policies, tcp->u_arg[2], "MPOL_???");
 790                 get_nodes(tcp, tcp->u_arg[3], tcp->u_arg[4], 0);
 791                 tprints(", ");
 792                 printflags(mbindflags, tcp->u_arg[5], "MPOL_???");
 793         }
 794         return 0;
 795 }
 796
 797 int
 798 sys_set_mempolicy(struct tcb *tcp)
 799 {
 800         if (entering(tcp)) {
 801                 printxval(policies, tcp->u_arg[0], "MPOL_???");
 802                 get_nodes(tcp, tcp->u_arg[1], tcp->u_arg[2], 0);
 803         }
 804         return 0;
 805 }
 806
 807 int
 808 sys_get_mempolicy(struct tcb *tcp)
 809 {
 810         if (exiting(tcp)) {
 811                 int pol;
 812                 if (tcp->u_arg[0] == 0)
 813                         tprints("NULL");
 814                 else if (syserror(tcp) || umove(tcp, tcp->u_arg[0], &pol) < 0)
 815                         tprintf("%#lx", tcp->u_arg[0]);
 816                 else
 817                         printxval(policies, pol, "MPOL_???");
 818                 get_nodes(tcp, tcp->u_arg[1], tcp->u_arg[2], syserror(tcp));
 819                 tprintf(", %#lx, ", tcp->u_arg[3]);
 820                 printflags(mempolicyflags, tcp->u_arg[4], "MPOL_???");
 821         }
 822         return 0;
 823 }
 824
 825 int
 826 sys_migrate_pages(struct tcb *tcp)
 827 {
 828         if (entering(tcp)) {
 829                 tprintf("%ld, ", (long) (pid_t) tcp->u_arg[0]);
 830                 get_nodes(tcp, tcp->u_arg[2], tcp->u_arg[1], 0);
 831                 tprints(", ");
 832                 get_nodes(tcp, tcp->u_arg[3], tcp->u_arg[1], 0);
 833         }
 834         return 0;
 835 }
 836
 837 int
 838 sys_move_pages(struct tcb *tcp)
 839 {
 840         if (entering(tcp)) {
 841                 unsigned long npages = tcp->u_arg[1];
 842                 tprintf("%ld, %lu, ", tcp->u_arg[0], npages);
 843                 if (tcp->u_arg[2] == 0)
 844                         tprints("NULL, ");
 845                 else {
 846                         int i;
 847                         long puser = tcp->u_arg[2];
 848                         tprints("{");
 849                         for (i = 0; i < npages; ++i) {
 850                                 void *p;
 851                                 if (i > 0)
 852                                         tprints(", ");
 853                                 if (umove(tcp, puser, &p) < 0) {
 854                                         tprints("???");
 855                                         break;
 856                                 }
 857                                 tprintf("%p", p);
 858                                 puser += sizeof(void *);
 859                         }
 860                         tprints("}, ");
 861                 }
 862                 if (tcp->u_arg[3] == 0)
 863                         tprints("NULL, ");
 864                 else {
 865                         int i;
 866                         long nodeuser = tcp->u_arg[3];
 867                         tprints("{");
 868                         for (i = 0; i < npages; ++i) {
 869                                 int node;
 870                                 if (i > 0)
 871                                         tprints(", ");
 872                                 if (umove(tcp, nodeuser, &node) < 0) {
 873                                         tprints("???");
 874                                         break;
 875                                 }
 876                                 tprintf("%#x", node);
 877                                 nodeuser += sizeof(int);
 878                         }
 879                         tprints("}, ");
 880                 }
 881         }
 882         if (exiting(tcp)) {
 883                 unsigned long npages = tcp->u_arg[1];
 884                 if (tcp->u_arg[4] == 0)
 885                         tprints("NULL, ");
 886                 else {
 887                         int i;
 888                         long statususer = tcp->u_arg[4];
 889                         tprints("{");
 890                         for (i = 0; i < npages; ++i) {
 891                                 int status;
 892                                 if (i > 0)
 893                                         tprints(", ");
 894                                 if (umove(tcp, statususer, &status) < 0) {
 895                                         tprints("???");
 896                                         break;
 897                                 }
 898                                 tprintf("%#x", status);
 899                                 statususer += sizeof(int);
 900                         }
 901                         tprints("}, ");
 902                 }
 903                 printflags(move_pages_flags, tcp->u_arg[5], "MPOL_???");
 904         }
 905         return 0;
 906 }
 907
 908 #if defined(POWERPC)
 909 int
 910 sys_subpage_prot(struct tcb *tcp)
 911 {
 912         if (entering(tcp)) {
 913                 unsigned long cur, end, abbrev_end, entries;
 914                 unsigned int entry;
 915
 916                 tprintf("%#lx, %#lx, ", tcp->u_arg[0], tcp->u_arg[1]);
 917                 entries = tcp->u_arg[1] >> 16;
 918                 if (!entries || !tcp->u_arg[2]) {
 919                         tprints("{}");
 920                         return 0;
 921                 }
 922                 cur = tcp->u_arg[2];
 923                 end = cur + (sizeof(int) * entries);
 924                 if (!verbose(tcp) || end < tcp->u_arg[2]) {
 925                         tprintf("%#lx", tcp->u_arg[2]);
 926                         return 0;
 927                 }
 928                 if (abbrev(tcp)) {
 929                         abbrev_end = cur + (sizeof(int) * max_strlen);
 930                         if (abbrev_end > end)
 931                                 abbrev_end = end;
 932                 }
 933                 else
 934                         abbrev_end = end;
 935                 tprints("{");
 936                 for (; cur < end; cur += sizeof(int)) {
 937                         if (cur > tcp->u_arg[2])
 938                                 tprints(", ");
 939                         if (cur >= abbrev_end) {
 940                                 tprints("...");
 941                                 break;
 942                         }
 943                         if (umove(tcp, cur, &entry) < 0) {
 944                                 tprintf("??? [%#lx]", cur);
 945                                 break;
 946                         }
 947                         else
 948                                 tprintf("%#08x", entry);
 949                 }
 950                 tprints("}");
 951         }
 952
 953         return 0;
 954 }
 955 #endif