granicus.if.org Git - strace/blob - process.c

   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) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
   7  *                     Linux for s390 port by D.J. Barrow
   8  *                    <barrow_dj@mail.yahoo.com,djbarrow@de.ibm.com>
   9  * Copyright (c) 2000 PocketPenguins Inc.  Linux for Hitachi SuperH
  10  *                    port by Greg Banks <gbanks@pocketpenguins.com>
  11
  12  *
  13  * All rights reserved.
  14  *
  15  * Redistribution and use in source and binary forms, with or without
  16  * modification, are permitted provided that the following conditions
  17  * are met:
  18  * 1. Redistributions of source code must retain the above copyright
  19  *    notice, this list of conditions and the following disclaimer.
  20  * 2. Redistributions in binary form must reproduce the above copyright
  21  *    notice, this list of conditions and the following disclaimer in the
  22  *    documentation and/or other materials provided with the distribution.
  23  * 3. The name of the author may not be used to endorse or promote products
  24  *    derived from this software without specific prior written permission.
  25  *
  26  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  27  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  28  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  29  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  30  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  31  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  32  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  33  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  34  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  35  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  36  *
  37  *      $Id$
  38  */
  39
  40 #include "defs.h"
  41
  42 #include <fcntl.h>
  43 #include <sys/stat.h>
  44 #include <sys/time.h>
  45 #include <sys/wait.h>
  46 #include <sys/resource.h>
  47 #include <sys/utsname.h>
  48 #include <sys/user.h>
  49 #include <sys/syscall.h>
  50 #include <signal.h>
  51
  52 #ifdef HAVE_SYS_REG_H
  53 # include <sys/reg.h>
  54 # ifndef PTRACE_PEEKUSR
  55 #  define PTRACE_PEEKUSR PTRACE_PEEKUSER
  56 # endif
  57 # ifndef PTRACE_POKEUSR
  58 #  define PTRACE_POKEUSR PTRACE_POKEUSER
  59 # endif
  60 #endif
  61
  62 #ifdef HAVE_LINUX_PTRACE_H
  63 # undef PTRACE_SYSCALL
  64 # ifdef HAVE_STRUCT_IA64_FPREG
  65 #  define ia64_fpreg XXX_ia64_fpreg
  66 # endif
  67 # ifdef HAVE_STRUCT_PT_ALL_USER_REGS
  68 #  define pt_all_user_regs XXX_pt_all_user_regs
  69 # endif
  70 # include <linux/ptrace.h>
  71 # undef ia64_fpreg
  72 # undef pt_all_user_regs
  73 #endif
  74
  75 #if defined(SPARC64)
  76 # define r_pc r_tpc
  77 # undef PTRACE_GETREGS
  78 # define PTRACE_GETREGS PTRACE_GETREGS64
  79 # undef PTRACE_SETREGS
  80 # define PTRACE_SETREGS PTRACE_SETREGS64
  81 #endif
  82
  83 #ifdef HAVE_LINUX_FUTEX_H
  84 # include <linux/futex.h>
  85 #endif
  86 #ifndef FUTEX_WAIT
  87 # define FUTEX_WAIT 0
  88 #endif
  89 #ifndef FUTEX_WAKE
  90 # define FUTEX_WAKE 1
  91 #endif
  92 #ifndef FUTEX_FD
  93 # define FUTEX_FD 2
  94 #endif
  95 #ifndef FUTEX_REQUEUE
  96 # define FUTEX_REQUEUE 3
  97 #endif
  98
  99 #include <sched.h>
 100 #include <asm/posix_types.h>
 101 #undef GETGROUPS_T
 102 #define GETGROUPS_T __kernel_gid_t
 103 #undef GETGROUPS32_T
 104 #define GETGROUPS32_T __kernel_gid32_t
 105
 106 #if defined(IA64)
 107 # include <asm/ptrace_offsets.h>
 108 # include <asm/rse.h>
 109 #endif
 110
 111 #ifdef HAVE_PRCTL
 112 # include <sys/prctl.h>
 113
 114 static const struct xlat prctl_options[] = {
 115 #ifdef PR_MAXPROCS
 116         { PR_MAXPROCS,          "PR_MAXPROCS"           },
 117 #endif
 118 #ifdef PR_ISBLOCKED
 119         { PR_ISBLOCKED,         "PR_ISBLOCKED"          },
 120 #endif
 121 #ifdef PR_SETSTACKSIZE
 122         { PR_SETSTACKSIZE,      "PR_SETSTACKSIZE"       },
 123 #endif
 124 #ifdef PR_GETSTACKSIZE
 125         { PR_GETSTACKSIZE,      "PR_GETSTACKSIZE"       },
 126 #endif
 127 #ifdef PR_MAXPPROCS
 128         { PR_MAXPPROCS,         "PR_MAXPPROCS"          },
 129 #endif
 130 #ifdef PR_UNBLKONEXEC
 131         { PR_UNBLKONEXEC,       "PR_UNBLKONEXEC"        },
 132 #endif
 133 #ifdef PR_ATOMICSIM
 134         { PR_ATOMICSIM,         "PR_ATOMICSIM"          },
 135 #endif
 136 #ifdef PR_SETEXITSIG
 137         { PR_SETEXITSIG,        "PR_SETEXITSIG"         },
 138 #endif
 139 #ifdef PR_RESIDENT
 140         { PR_RESIDENT,          "PR_RESIDENT"           },
 141 #endif
 142 #ifdef PR_ATTACHADDR
 143         { PR_ATTACHADDR,        "PR_ATTACHADDR"         },
 144 #endif
 145 #ifdef PR_DETACHADDR
 146         { PR_DETACHADDR,        "PR_DETACHADDR"         },
 147 #endif
 148 #ifdef PR_TERMCHILD
 149         { PR_TERMCHILD,         "PR_TERMCHILD"          },
 150 #endif
 151 #ifdef PR_GETSHMASK
 152         { PR_GETSHMASK,         "PR_GETSHMASK"          },
 153 #endif
 154 #ifdef PR_GETNSHARE
 155         { PR_GETNSHARE,         "PR_GETNSHARE"          },
 156 #endif
 157 #ifdef PR_COREPID
 158         { PR_COREPID,           "PR_COREPID"            },
 159 #endif
 160 #ifdef PR_ATTACHADDRPERM
 161         { PR_ATTACHADDRPERM,    "PR_ATTACHADDRPERM"     },
 162 #endif
 163 #ifdef PR_PTHREADEXIT
 164         { PR_PTHREADEXIT,       "PR_PTHREADEXIT"        },
 165 #endif
 166 #ifdef PR_SET_PDEATHSIG
 167         { PR_SET_PDEATHSIG,     "PR_SET_PDEATHSIG"      },
 168 #endif
 169 #ifdef PR_GET_PDEATHSIG
 170         { PR_GET_PDEATHSIG,     "PR_GET_PDEATHSIG"      },
 171 #endif
 172 #ifdef PR_GET_DUMPABLE
 173         { PR_GET_DUMPABLE,      "PR_GET_DUMPABLE"       },
 174 #endif
 175 #ifdef PR_SET_DUMPABLE
 176         { PR_SET_DUMPABLE,      "PR_SET_DUMPABLE"       },
 177 #endif
 178 #ifdef PR_GET_UNALIGN
 179         { PR_GET_UNALIGN,       "PR_GET_UNALIGN"        },
 180 #endif
 181 #ifdef PR_SET_UNALIGN
 182         { PR_SET_UNALIGN,       "PR_SET_UNALIGN"        },
 183 #endif
 184 #ifdef PR_GET_KEEPCAPS
 185         { PR_GET_KEEPCAPS,      "PR_GET_KEEPCAPS"       },
 186 #endif
 187 #ifdef PR_SET_KEEPCAPS
 188         { PR_SET_KEEPCAPS,      "PR_SET_KEEPCAPS"       },
 189 #endif
 190 #ifdef PR_GET_FPEMU
 191         { PR_GET_FPEMU,         "PR_GET_FPEMU"          },
 192 #endif
 193 #ifdef PR_SET_FPEMU
 194         { PR_SET_FPEMU,         "PR_SET_FPEMU"          },
 195 #endif
 196 #ifdef PR_GET_FPEXC
 197         { PR_GET_FPEXC,         "PR_GET_FPEXC"          },
 198 #endif
 199 #ifdef PR_SET_FPEXC
 200         { PR_SET_FPEXC,         "PR_SET_FPEXC"          },
 201 #endif
 202 #ifdef PR_GET_TIMING
 203         { PR_GET_TIMING,        "PR_GET_TIMING"         },
 204 #endif
 205 #ifdef PR_SET_TIMING
 206         { PR_SET_TIMING,        "PR_SET_TIMING"         },
 207 #endif
 208 #ifdef PR_SET_NAME
 209         { PR_SET_NAME,          "PR_SET_NAME"           },
 210 #endif
 211 #ifdef PR_GET_NAME
 212         { PR_GET_NAME,          "PR_GET_NAME"           },
 213 #endif
 214 #ifdef PR_GET_ENDIAN
 215         { PR_GET_ENDIAN,        "PR_GET_ENDIAN"         },
 216 #endif
 217 #ifdef PR_SET_ENDIAN
 218         { PR_SET_ENDIAN,        "PR_SET_ENDIAN"         },
 219 #endif
 220 #ifdef PR_GET_SECCOMP
 221         { PR_GET_SECCOMP,       "PR_GET_SECCOMP"        },
 222 #endif
 223 #ifdef PR_SET_SECCOMP
 224         { PR_SET_SECCOMP,       "PR_SET_SECCOMP"        },
 225 #endif
 226 #ifdef PR_GET_TSC
 227         { PR_GET_TSC,           "PR_GET_TSC"            },
 228 #endif
 229 #ifdef PR_SET_TSC
 230         { PR_SET_TSC,           "PR_SET_TSC"            },
 231 #endif
 232 #ifdef PR_GET_SECUREBITS
 233         { PR_GET_SECUREBITS,    "PR_GET_SECUREBITS"     },
 234 #endif
 235 #ifdef PR_SET_SECUREBITS
 236         { PR_SET_SECUREBITS,    "PR_SET_SECUREBITS"     },
 237 #endif
 238         { 0,                    NULL                    },
 239 };
 240
 241 static const char *
 242 unalignctl_string(unsigned int ctl)
 243 {
 244         static char buf[sizeof(int)*2 + 2];
 245
 246         switch (ctl) {
 247 #ifdef PR_UNALIGN_NOPRINT
 248                 case PR_UNALIGN_NOPRINT:
 249                         return "NOPRINT";
 250 #endif
 251 #ifdef PR_UNALIGN_SIGBUS
 252                 case PR_UNALIGN_SIGBUS:
 253                         return "SIGBUS";
 254 #endif
 255                 default:
 256                         break;
 257         }
 258         sprintf(buf, "%x", ctl);
 259         return buf;
 260 }
 261
 262 int
 263 sys_prctl(struct tcb *tcp)
 264 {
 265         int i;
 266
 267         if (entering(tcp)) {
 268                 printxval(prctl_options, tcp->u_arg[0], "PR_???");
 269                 switch (tcp->u_arg[0]) {
 270 #ifdef PR_GETNSHARE
 271                 case PR_GETNSHARE:
 272                         break;
 273 #endif
 274 #ifdef PR_SET_PDEATHSIG
 275                 case PR_SET_PDEATHSIG:
 276                         tprintf(", %lu", tcp->u_arg[1]);
 277                         break;
 278 #endif
 279 #ifdef PR_GET_PDEATHSIG
 280                 case PR_GET_PDEATHSIG:
 281                         break;
 282 #endif
 283 #ifdef PR_SET_DUMPABLE
 284                 case PR_SET_DUMPABLE:
 285                         tprintf(", %lu", tcp->u_arg[1]);
 286                         break;
 287 #endif
 288 #ifdef PR_GET_DUMPABLE
 289                 case PR_GET_DUMPABLE:
 290                         break;
 291 #endif
 292 #ifdef PR_SET_UNALIGN
 293                 case PR_SET_UNALIGN:
 294                         tprintf(", %s", unalignctl_string(tcp->u_arg[1]));
 295                         break;
 296 #endif
 297 #ifdef PR_GET_UNALIGN
 298                 case PR_GET_UNALIGN:
 299                         tprintf(", %#lx", tcp->u_arg[1]);
 300                         break;
 301 #endif
 302 #ifdef PR_SET_KEEPCAPS
 303                 case PR_SET_KEEPCAPS:
 304                         tprintf(", %lu", tcp->u_arg[1]);
 305                         break;
 306 #endif
 307 #ifdef PR_GET_KEEPCAPS
 308                 case PR_GET_KEEPCAPS:
 309                         break;
 310 #endif
 311                 default:
 312                         for (i = 1; i < tcp->u_nargs; i++)
 313                                 tprintf(", %#lx", tcp->u_arg[i]);
 314                         break;
 315                 }
 316         } else {
 317                 switch (tcp->u_arg[0]) {
 318 #ifdef PR_GET_PDEATHSIG
 319                 case PR_GET_PDEATHSIG:
 320                         if (umove(tcp, tcp->u_arg[1], &i) < 0)
 321                                 tprintf(", %#lx", tcp->u_arg[1]);
 322                         else
 323                                 tprintf(", {%u}", i);
 324                         break;
 325 #endif
 326 #ifdef PR_GET_DUMPABLE
 327                 case PR_GET_DUMPABLE:
 328                         return RVAL_UDECIMAL;
 329 #endif
 330 #ifdef PR_GET_UNALIGN
 331                 case PR_GET_UNALIGN:
 332                         if (syserror(tcp) || umove(tcp, tcp->u_arg[1], &i) < 0)
 333                                 break;
 334                         tcp->auxstr = unalignctl_string(i);
 335                         return RVAL_STR;
 336 #endif
 337 #ifdef PR_GET_KEEPCAPS
 338                 case PR_GET_KEEPCAPS:
 339                         return RVAL_UDECIMAL;
 340 #endif
 341                 default:
 342                         break;
 343                 }
 344         }
 345         return 0;
 346 }
 347 #endif /* HAVE_PRCTL */
 348
 349 int
 350 sys_sethostname(struct tcb *tcp)
 351 {
 352         if (entering(tcp)) {
 353                 printpathn(tcp, tcp->u_arg[0], tcp->u_arg[1]);
 354                 tprintf(", %lu", tcp->u_arg[1]);
 355         }
 356         return 0;
 357 }
 358
 359 #if defined(ALPHA)
 360 int
 361 sys_gethostname(struct tcb *tcp)
 362 {
 363         if (exiting(tcp)) {
 364                 if (syserror(tcp))
 365                         tprintf("%#lx", tcp->u_arg[0]);
 366                 else
 367                         printpath(tcp, tcp->u_arg[0]);
 368                 tprintf(", %lu", tcp->u_arg[1]);
 369         }
 370         return 0;
 371 }
 372 #endif
 373
 374 int
 375 sys_setdomainname(struct tcb *tcp)
 376 {
 377         if (entering(tcp)) {
 378                 printpathn(tcp, tcp->u_arg[0], tcp->u_arg[1]);
 379                 tprintf(", %lu", tcp->u_arg[1]);
 380         }
 381         return 0;
 382 }
 383
 384 int
 385 sys_exit(struct tcb *tcp)
 386 {
 387         if (exiting(tcp)) {
 388                 fprintf(stderr, "_exit returned!\n");
 389                 return -1;
 390         }
 391         /* special case: we stop tracing this process, finish line now */
 392         tprintf("%ld) ", tcp->u_arg[0]);
 393         tabto();
 394         tprints("= ?\n");
 395         printing_tcp = NULL;
 396         return 0;
 397 }
 398
 399 /* defines copied from linux/sched.h since we can't include that
 400  * ourselves (it conflicts with *lots* of libc includes)
 401  */
 402 #define CSIGNAL         0x000000ff      /* signal mask to be sent at exit */
 403 #define CLONE_VM        0x00000100      /* set if VM shared between processes */
 404 #define CLONE_FS        0x00000200      /* set if fs info shared between processes */
 405 #define CLONE_FILES     0x00000400      /* set if open files shared between processes */
 406 #define CLONE_SIGHAND   0x00000800      /* set if signal handlers shared */
 407 #define CLONE_IDLETASK  0x00001000      /* kernel-only flag */
 408 #define CLONE_PTRACE    0x00002000      /* set if we want to let tracing continue on the child too */
 409 #define CLONE_VFORK     0x00004000      /* set if the parent wants the child to wake it up on mm_release */
 410 #define CLONE_PARENT    0x00008000      /* set if we want to have the same parent as the cloner */
 411 #define CLONE_THREAD    0x00010000      /* Same thread group? */
 412 #define CLONE_NEWNS     0x00020000      /* New namespace group? */
 413 #define CLONE_SYSVSEM   0x00040000      /* share system V SEM_UNDO semantics */
 414 #define CLONE_SETTLS    0x00080000      /* create a new TLS for the child */
 415 #define CLONE_PARENT_SETTID     0x00100000      /* set the TID in the parent */
 416 #define CLONE_CHILD_CLEARTID    0x00200000      /* clear the TID in the child */
 417 #define CLONE_UNTRACED          0x00800000      /* set if the tracing process can't force CLONE_PTRACE on this clone */
 418 #define CLONE_CHILD_SETTID      0x01000000      /* set the TID in the child */
 419 #define CLONE_STOPPED           0x02000000      /* Start in stopped state */
 420 #define CLONE_NEWUTS            0x04000000      /* New utsname group? */
 421 #define CLONE_NEWIPC            0x08000000      /* New ipcs */
 422 #define CLONE_NEWUSER           0x10000000      /* New user namespace */
 423 #define CLONE_NEWPID            0x20000000      /* New pid namespace */
 424 #define CLONE_NEWNET            0x40000000      /* New network namespace */
 425 #define CLONE_IO                0x80000000      /* Clone io context */
 426
 427 static const struct xlat clone_flags[] = {
 428     { CLONE_VM,         "CLONE_VM"      },
 429     { CLONE_FS,         "CLONE_FS"      },
 430     { CLONE_FILES,      "CLONE_FILES"   },
 431     { CLONE_SIGHAND,    "CLONE_SIGHAND" },
 432     { CLONE_IDLETASK,   "CLONE_IDLETASK"},
 433     { CLONE_PTRACE,     "CLONE_PTRACE"  },
 434     { CLONE_VFORK,      "CLONE_VFORK"   },
 435     { CLONE_PARENT,     "CLONE_PARENT"  },
 436     { CLONE_THREAD,     "CLONE_THREAD" },
 437     { CLONE_NEWNS,      "CLONE_NEWNS" },
 438     { CLONE_SYSVSEM,    "CLONE_SYSVSEM" },
 439     { CLONE_SETTLS,     "CLONE_SETTLS" },
 440     { CLONE_PARENT_SETTID,"CLONE_PARENT_SETTID" },
 441     { CLONE_CHILD_CLEARTID,"CLONE_CHILD_CLEARTID" },
 442     { CLONE_UNTRACED,   "CLONE_UNTRACED" },
 443     { CLONE_CHILD_SETTID,"CLONE_CHILD_SETTID" },
 444     { CLONE_STOPPED,    "CLONE_STOPPED" },
 445     { CLONE_NEWUTS,     "CLONE_NEWUTS" },
 446     { CLONE_NEWIPC,     "CLONE_NEWIPC" },
 447     { CLONE_NEWUSER,    "CLONE_NEWUSER" },
 448     { CLONE_NEWPID,     "CLONE_NEWPID" },
 449     { CLONE_NEWNET,     "CLONE_NEWNET" },
 450     { CLONE_IO,         "CLONE_IO" },
 451     { 0,                NULL            },
 452 };
 453
 454 # ifdef I386
 455 #  include <asm/ldt.h>
 456 #   ifdef HAVE_STRUCT_USER_DESC
 457 #    define modify_ldt_ldt_s user_desc
 458 #   endif
 459 extern void print_ldt_entry();
 460 # endif
 461
 462 # if defined IA64
 463 #  define ARG_FLAGS     0
 464 #  define ARG_STACK     1
 465 #  define ARG_STACKSIZE (tcp->scno == SYS_clone2 ? 2 : -1)
 466 #  define ARG_PTID      (tcp->scno == SYS_clone2 ? 3 : 2)
 467 #  define ARG_CTID      (tcp->scno == SYS_clone2 ? 4 : 3)
 468 #  define ARG_TLS       (tcp->scno == SYS_clone2 ? 5 : 4)
 469 # elif defined S390 || defined S390X || defined CRISV10 || defined CRISV32
 470 #  define ARG_STACK     0
 471 #  define ARG_FLAGS     1
 472 #  define ARG_PTID      2
 473 #  define ARG_CTID      3
 474 #  define ARG_TLS       4
 475 # elif defined X86_64 || defined ALPHA
 476 #  define ARG_FLAGS     0
 477 #  define ARG_STACK     1
 478 #  define ARG_PTID      2
 479 #  define ARG_CTID      3
 480 #  define ARG_TLS       4
 481 # else
 482 #  define ARG_FLAGS     0
 483 #  define ARG_STACK     1
 484 #  define ARG_PTID      2
 485 #  define ARG_TLS       3
 486 #  define ARG_CTID      4
 487 # endif
 488
 489 int
 490 sys_clone(struct tcb *tcp)
 491 {
 492         if (exiting(tcp)) {
 493                 const char *sep = "|";
 494                 unsigned long flags = tcp->u_arg[ARG_FLAGS];
 495                 tprintf("child_stack=%#lx, ", tcp->u_arg[ARG_STACK]);
 496 # ifdef ARG_STACKSIZE
 497                 if (ARG_STACKSIZE != -1)
 498                         tprintf("stack_size=%#lx, ",
 499                                 tcp->u_arg[ARG_STACKSIZE]);
 500 # endif
 501                 tprints("flags=");
 502                 if (!printflags(clone_flags, flags &~ CSIGNAL, NULL))
 503                         sep = "";
 504                 if ((flags & CSIGNAL) != 0)
 505                         tprintf("%s%s", sep, signame(flags & CSIGNAL));
 506                 if ((flags & (CLONE_PARENT_SETTID|CLONE_CHILD_SETTID
 507                               |CLONE_CHILD_CLEARTID|CLONE_SETTLS)) == 0)
 508                         return 0;
 509                 if (flags & CLONE_PARENT_SETTID)
 510                         tprintf(", parent_tidptr=%#lx", tcp->u_arg[ARG_PTID]);
 511                 if (flags & CLONE_SETTLS) {
 512 # ifdef I386
 513                         struct modify_ldt_ldt_s copy;
 514                         if (umove(tcp, tcp->u_arg[ARG_TLS], &copy) != -1) {
 515                                 tprintf(", {entry_number:%d, ",
 516                                         copy.entry_number);
 517                                 if (!verbose(tcp))
 518                                         tprints("...}");
 519                                 else
 520                                         print_ldt_entry(&copy);
 521                         }
 522                         else
 523 # endif
 524                                 tprintf(", tls=%#lx", tcp->u_arg[ARG_TLS]);
 525                 }
 526                 if (flags & (CLONE_CHILD_SETTID|CLONE_CHILD_CLEARTID))
 527                         tprintf(", child_tidptr=%#lx", tcp->u_arg[ARG_CTID]);
 528         }
 529         return 0;
 530 }
 531
 532 int
 533 sys_unshare(struct tcb *tcp)
 534 {
 535         if (entering(tcp))
 536                 printflags(clone_flags, tcp->u_arg[0], "CLONE_???");
 537         return 0;
 538 }
 539
 540 int
 541 sys_fork(struct tcb *tcp)
 542 {
 543         if (exiting(tcp))
 544                 return RVAL_UDECIMAL;
 545         return 0;
 546 }
 547
 548 int
 549 change_syscall(struct tcb *tcp, int new)
 550 {
 551 #if defined(I386)
 552         /* Attempt to make vfork into fork, which we can follow. */
 553         if (ptrace(PTRACE_POKEUSER, tcp->pid, (char*)(ORIG_EAX * 4), new) < 0)
 554                 return -1;
 555         return 0;
 556 #elif defined(X86_64)
 557         /* Attempt to make vfork into fork, which we can follow. */
 558         if (ptrace(PTRACE_POKEUSER, tcp->pid, (char*)(ORIG_RAX * 8), new) < 0)
 559                 return -1;
 560         return 0;
 561 #elif defined(POWERPC)
 562         if (ptrace(PTRACE_POKEUSER, tcp->pid,
 563                    (char*)(sizeof(unsigned long)*PT_R0), new) < 0)
 564                 return -1;
 565         return 0;
 566 #elif defined(S390) || defined(S390X)
 567         /* s390 linux after 2.4.7 has a hook in entry.S to allow this */
 568         if (ptrace(PTRACE_POKEUSER, tcp->pid, (char*)(PT_GPR2), new) < 0)
 569                 return -1;
 570         return 0;
 571 #elif defined(M68K)
 572         if (ptrace(PTRACE_POKEUSER, tcp->pid, (char*)(4*PT_ORIG_D0), new) < 0)
 573                 return -1;
 574         return 0;
 575 #elif defined(SPARC) || defined(SPARC64)
 576         struct pt_regs regs;
 577         if (ptrace(PTRACE_GETREGS, tcp->pid, (char*)&regs, 0) < 0)
 578                 return -1;
 579         regs.u_regs[U_REG_G1] = new;
 580         if (ptrace(PTRACE_SETREGS, tcp->pid, (char*)&regs, 0) < 0)
 581                 return -1;
 582         return 0;
 583 #elif defined(MIPS)
 584         if (ptrace(PTRACE_POKEUSER, tcp->pid, (char*)(REG_V0), new) < 0)
 585                 return -1;
 586         return 0;
 587 #elif defined(ALPHA)
 588         if (ptrace(PTRACE_POKEUSER, tcp->pid, (char*)(REG_A3), new) < 0)
 589                 return -1;
 590         return 0;
 591 #elif defined(AVR32)
 592         if (ptrace(PTRACE_POKEUSER, tcp->pid, (char*)(REG_R8), new) < 0)
 593                 return -1;
 594         return 0;
 595 #elif defined(BFIN)
 596         if (ptrace(PTRACE_POKEUSER, tcp->pid, (char*)(REG_P0), new) < 0)
 597                 return -1;
 598         return 0;
 599 #elif defined(IA64)
 600         if (ia32) {
 601                 switch (new) {
 602                 case 2:
 603                         break;  /* x86 SYS_fork */
 604                 case SYS_clone:
 605                         new = 120;
 606                         break;
 607                 default:
 608                         fprintf(stderr, "%s: unexpected syscall %d\n",
 609                                 __FUNCTION__, new);
 610                         return -1;
 611                 }
 612                 if (ptrace(PTRACE_POKEUSER, tcp->pid, (char*)(PT_R1), new) < 0)
 613                         return -1;
 614         } else if (ptrace(PTRACE_POKEUSER, tcp->pid, (char*)(PT_R15), new) < 0)
 615                 return -1;
 616         return 0;
 617 #elif defined(HPPA)
 618         if (ptrace(PTRACE_POKEUSER, tcp->pid, (char*)(PT_GR20), new) < 0)
 619                 return -1;
 620         return 0;
 621 #elif defined(SH)
 622         if (ptrace(PTRACE_POKEUSER, tcp->pid, (char*)(4*(REG_REG0+3)), new) < 0)
 623                 return -1;
 624         return 0;
 625 #elif defined(SH64)
 626         /* Top half of reg encodes the no. of args n as 0x1n.
 627            Assume 0 args as kernel never actually checks... */
 628         if (ptrace(PTRACE_POKEUSER, tcp->pid, (char*)(REG_SYSCALL),
 629                                 0x100000 | new) < 0)
 630                 return -1;
 631         return 0;
 632 #elif defined(CRISV10) || defined(CRISV32)
 633         if (ptrace(PTRACE_POKEUSER, tcp->pid, (char*)(4*PT_R9), new) < 0)
 634                 return -1;
 635         return 0;
 636 #elif defined(ARM)
 637         /* Some kernels support this, some (pre-2.6.16 or so) don't.  */
 638 # ifndef PTRACE_SET_SYSCALL
 639 #  define PTRACE_SET_SYSCALL 23
 640 # endif
 641
 642         if (ptrace(PTRACE_SET_SYSCALL, tcp->pid, 0, new & 0xffff) != 0)
 643                 return -1;
 644
 645         return 0;
 646 #elif defined(TILE)
 647         if (ptrace(PTRACE_POKEUSER, tcp->pid,
 648                    (char*)PTREGS_OFFSET_REG(0),
 649                    new) != 0)
 650                 return -1;
 651         return 0;
 652 #elif defined(MICROBLAZE)
 653         if (ptrace(PTRACE_POKEUSER, tcp->pid, (char*)(PT_GPR(0)), new) < 0)
 654                 return -1;
 655         return 0;
 656 #else
 657 #warning Do not know how to handle change_syscall for this architecture
 658 #endif /* architecture */
 659         return -1;
 660 }
 661
 662 int
 663 internal_fork(struct tcb *tcp)
 664 {
 665         if ((ptrace_setoptions
 666             & (PTRACE_O_TRACECLONE | PTRACE_O_TRACEFORK | PTRACE_O_TRACEVFORK))
 667            == (PTRACE_O_TRACECLONE | PTRACE_O_TRACEFORK | PTRACE_O_TRACEVFORK))
 668                 return 0;
 669
 670         if (!followfork)
 671                 return 0;
 672
 673         if (entering(tcp)) {
 674                 /*
 675                  * We won't see the new child if clone is called with
 676                  * CLONE_UNTRACED, so we keep the same logic with that option
 677                  * and don't trace it.
 678                  */
 679                 if ((sysent[tcp->scno].sys_func == sys_clone) &&
 680                     (tcp->u_arg[ARG_FLAGS] & CLONE_UNTRACED))
 681                         return 0;
 682                 setbpt(tcp);
 683         } else {
 684                 if (tcp->flags & TCB_BPTSET)
 685                         clearbpt(tcp);
 686         }
 687         return 0;
 688 }
 689
 690 int
 691 sys_vfork(struct tcb *tcp)
 692 {
 693         if (exiting(tcp))
 694                 return RVAL_UDECIMAL;
 695         return 0;
 696 }
 697
 698 int sys_getuid(struct tcb *tcp)
 699 {
 700         if (exiting(tcp))
 701                 tcp->u_rval = (uid_t) tcp->u_rval;
 702         return RVAL_UDECIMAL;
 703 }
 704
 705 int sys_setfsuid(struct tcb *tcp)
 706 {
 707         if (entering(tcp))
 708                 tprintf("%u", (uid_t) tcp->u_arg[0]);
 709         else
 710                 tcp->u_rval = (uid_t) tcp->u_rval;
 711         return RVAL_UDECIMAL;
 712 }
 713
 714 int
 715 sys_setuid(struct tcb *tcp)
 716 {
 717         if (entering(tcp)) {
 718                 tprintf("%u", (uid_t) tcp->u_arg[0]);
 719         }
 720         return 0;
 721 }
 722
 723 int
 724 sys_getresuid(struct tcb *tcp)
 725 {
 726         if (exiting(tcp)) {
 727                 __kernel_uid_t uid;
 728                 if (syserror(tcp))
 729                         tprintf("%#lx, %#lx, %#lx", tcp->u_arg[0],
 730                                 tcp->u_arg[1], tcp->u_arg[2]);
 731                 else {
 732                         if (umove(tcp, tcp->u_arg[0], &uid) < 0)
 733                                 tprintf("%#lx, ", tcp->u_arg[0]);
 734                         else
 735                                 tprintf("[%lu], ", (unsigned long) uid);
 736                         if (umove(tcp, tcp->u_arg[1], &uid) < 0)
 737                                 tprintf("%#lx, ", tcp->u_arg[1]);
 738                         else
 739                                 tprintf("[%lu], ", (unsigned long) uid);
 740                         if (umove(tcp, tcp->u_arg[2], &uid) < 0)
 741                                 tprintf("%#lx", tcp->u_arg[2]);
 742                         else
 743                                 tprintf("[%lu]", (unsigned long) uid);
 744                 }
 745         }
 746         return 0;
 747 }
 748
 749 int
 750 sys_setreuid(struct tcb *tcp)
 751 {
 752         if (entering(tcp)) {
 753                 printuid("", tcp->u_arg[0]);
 754                 printuid(", ", tcp->u_arg[1]);
 755         }
 756         return 0;
 757 }
 758
 759 int
 760 sys_setresuid(struct tcb *tcp)
 761 {
 762         if (entering(tcp)) {
 763                 printuid("", tcp->u_arg[0]);
 764                 printuid(", ", tcp->u_arg[1]);
 765                 printuid(", ", tcp->u_arg[2]);
 766         }
 767         return 0;
 768 }
 769
 770 int
 771 sys_setgroups(struct tcb *tcp)
 772 {
 773         if (entering(tcp)) {
 774                 unsigned long len, size, start, cur, end, abbrev_end;
 775                 GETGROUPS_T gid;
 776                 int failed = 0;
 777
 778                 len = tcp->u_arg[0];
 779                 tprintf("%lu, ", len);
 780                 if (len == 0) {
 781                         tprints("[]");
 782                         return 0;
 783                 }
 784                 start = tcp->u_arg[1];
 785                 if (start == 0) {
 786                         tprints("NULL");
 787                         return 0;
 788                 }
 789                 size = len * sizeof(gid);
 790                 end = start + size;
 791                 if (!verbose(tcp) || size / sizeof(gid) != len || end < start) {
 792                         tprintf("%#lx", start);
 793                         return 0;
 794                 }
 795                 if (abbrev(tcp)) {
 796                         abbrev_end = start + max_strlen * sizeof(gid);
 797                         if (abbrev_end < start)
 798                                 abbrev_end = end;
 799                 } else {
 800                         abbrev_end = end;
 801                 }
 802                 tprints("[");
 803                 for (cur = start; cur < end; cur += sizeof(gid)) {
 804                         if (cur > start)
 805                                 tprints(", ");
 806                         if (cur >= abbrev_end) {
 807                                 tprints("...");
 808                                 break;
 809                         }
 810                         if (umoven(tcp, cur, sizeof(gid), (char *) &gid) < 0) {
 811                                 tprints("?");
 812                                 failed = 1;
 813                                 break;
 814                         }
 815                         tprintf("%lu", (unsigned long) gid);
 816                 }
 817                 tprints("]");
 818                 if (failed)
 819                         tprintf(" %#lx", tcp->u_arg[1]);
 820         }
 821         return 0;
 822 }
 823
 824 int
 825 sys_getgroups(struct tcb *tcp)
 826 {
 827         unsigned long len;
 828
 829         if (entering(tcp)) {
 830                 len = tcp->u_arg[0];
 831                 tprintf("%lu, ", len);
 832         } else {
 833                 unsigned long size, start, cur, end, abbrev_end;
 834                 GETGROUPS_T gid;
 835                 int failed = 0;
 836
 837                 len = tcp->u_rval;
 838                 if (len == 0) {
 839                         tprints("[]");
 840                         return 0;
 841                 }
 842                 start = tcp->u_arg[1];
 843                 if (start == 0) {
 844                         tprints("NULL");
 845                         return 0;
 846                 }
 847                 if (tcp->u_arg[0] == 0) {
 848                         tprintf("%#lx", start);
 849                         return 0;
 850                 }
 851                 size = len * sizeof(gid);
 852                 end = start + size;
 853                 if (!verbose(tcp) || tcp->u_arg[0] == 0 ||
 854                     size / sizeof(gid) != len || end < start) {
 855                         tprintf("%#lx", start);
 856                         return 0;
 857                 }
 858                 if (abbrev(tcp)) {
 859                         abbrev_end = start + max_strlen * sizeof(gid);
 860                         if (abbrev_end < start)
 861                                 abbrev_end = end;
 862                 } else {
 863                         abbrev_end = end;
 864                 }
 865                 tprints("[");
 866                 for (cur = start; cur < end; cur += sizeof(gid)) {
 867                         if (cur > start)
 868                                 tprints(", ");
 869                         if (cur >= abbrev_end) {
 870                                 tprints("...");
 871                                 break;
 872                         }
 873                         if (umoven(tcp, cur, sizeof(gid), (char *) &gid) < 0) {
 874                                 tprints("?");
 875                                 failed = 1;
 876                                 break;
 877                         }
 878                         tprintf("%lu", (unsigned long) gid);
 879                 }
 880                 tprints("]");
 881                 if (failed)
 882                         tprintf(" %#lx", tcp->u_arg[1]);
 883         }
 884         return 0;
 885 }
 886
 887 int
 888 sys_setgroups32(struct tcb *tcp)
 889 {
 890         if (entering(tcp)) {
 891                 unsigned long len, size, start, cur, end, abbrev_end;
 892                 GETGROUPS32_T gid;
 893                 int failed = 0;
 894
 895                 len = tcp->u_arg[0];
 896                 tprintf("%lu, ", len);
 897                 if (len == 0) {
 898                         tprints("[]");
 899                         return 0;
 900                 }
 901                 start = tcp->u_arg[1];
 902                 if (start == 0) {
 903                         tprints("NULL");
 904                         return 0;
 905                 }
 906                 size = len * sizeof(gid);
 907                 end = start + size;
 908                 if (!verbose(tcp) || size / sizeof(gid) != len || end < start) {
 909                         tprintf("%#lx", start);
 910                         return 0;
 911                 }
 912                 if (abbrev(tcp)) {
 913                         abbrev_end = start + max_strlen * sizeof(gid);
 914                         if (abbrev_end < start)
 915                                 abbrev_end = end;
 916                 } else {
 917                         abbrev_end = end;
 918                 }
 919                 tprints("[");
 920                 for (cur = start; cur < end; cur += sizeof(gid)) {
 921                         if (cur > start)
 922                                 tprints(", ");
 923                         if (cur >= abbrev_end) {
 924                                 tprints("...");
 925                                 break;
 926                         }
 927                         if (umoven(tcp, cur, sizeof(gid), (char *) &gid) < 0) {
 928                                 tprints("?");
 929                                 failed = 1;
 930                                 break;
 931                         }
 932                         tprintf("%lu", (unsigned long) gid);
 933                 }
 934                 tprints("]");
 935                 if (failed)
 936                         tprintf(" %#lx", tcp->u_arg[1]);
 937         }
 938         return 0;
 939 }
 940
 941 int
 942 sys_getgroups32(struct tcb *tcp)
 943 {
 944         unsigned long len;
 945
 946         if (entering(tcp)) {
 947                 len = tcp->u_arg[0];
 948                 tprintf("%lu, ", len);
 949         } else {
 950                 unsigned long size, start, cur, end, abbrev_end;
 951                 GETGROUPS32_T gid;
 952                 int failed = 0;
 953
 954                 len = tcp->u_rval;
 955                 if (len == 0) {
 956                         tprints("[]");
 957                         return 0;
 958                 }
 959                 start = tcp->u_arg[1];
 960                 if (start == 0) {
 961                         tprints("NULL");
 962                         return 0;
 963                 }
 964                 size = len * sizeof(gid);
 965                 end = start + size;
 966                 if (!verbose(tcp) || tcp->u_arg[0] == 0 ||
 967                     size / sizeof(gid) != len || end < start) {
 968                         tprintf("%#lx", start);
 969                         return 0;
 970                 }
 971                 if (abbrev(tcp)) {
 972                         abbrev_end = start + max_strlen * sizeof(gid);
 973                         if (abbrev_end < start)
 974                                 abbrev_end = end;
 975                 } else {
 976                         abbrev_end = end;
 977                 }
 978                 tprints("[");
 979                 for (cur = start; cur < end; cur += sizeof(gid)) {
 980                         if (cur > start)
 981                                 tprints(", ");
 982                         if (cur >= abbrev_end) {
 983                                 tprints("...");
 984                                 break;
 985                         }
 986                         if (umoven(tcp, cur, sizeof(gid), (char *) &gid) < 0) {
 987                                 tprints("?");
 988                                 failed = 1;
 989                                 break;
 990                         }
 991                         tprintf("%lu", (unsigned long) gid);
 992                 }
 993                 tprints("]");
 994                 if (failed)
 995                         tprintf(" %#lx", tcp->u_arg[1]);
 996         }
 997         return 0;
 998 }
 999
1000 static void
1001 printargv(struct tcb *tcp, long addr)
1002 {
1003         union {
1004                 unsigned int p32;
1005                 unsigned long p64;
1006                 char data[sizeof(long)];
1007         } cp;
1008         const char *sep;
1009         int n = 0;
1010         unsigned wordsize = personality_wordsize[current_personality];
1011
1012         cp.p64 = 1;
1013         for (sep = ""; !abbrev(tcp) || n < max_strlen / 2; sep = ", ", ++n) {
1014                 if (umoven(tcp, addr, wordsize, cp.data) < 0) {
1015                         tprintf("%#lx", addr);
1016                         return;
1017                 }
1018                 if (wordsize == 4)
1019                         cp.p64 = cp.p32;
1020                 if (cp.p64 == 0)
1021                         break;
1022                 tprints(sep);
1023                 printstr(tcp, cp.p64, -1);
1024                 addr += wordsize;
1025         }
1026         if (cp.p64)
1027                 tprintf("%s...", sep);
1028 }
1029
1030 static void
1031 printargc(const char *fmt, struct tcb *tcp, long addr)
1032 {
1033         int count;
1034         char *cp;
1035
1036         for (count = 0; umove(tcp, addr, &cp) >= 0 && cp != NULL; count++) {
1037                 addr += sizeof(char *);
1038         }
1039         tprintf(fmt, count, count == 1 ? "" : "s");
1040 }
1041
1042 #if defined(SPARC) || defined(SPARC64)
1043 int
1044 sys_execv(struct tcb *tcp)
1045 {
1046         if (entering(tcp)) {
1047                 printpath(tcp, tcp->u_arg[0]);
1048                 if (!verbose(tcp))
1049                         tprintf(", %#lx", tcp->u_arg[1]);
1050                 else {
1051                         tprints(", [");
1052                         printargv(tcp, tcp->u_arg[1]);
1053                         tprints("]");
1054                 }
1055         }
1056         return 0;
1057 }
1058 #endif
1059
1060 int
1061 sys_execve(struct tcb *tcp)
1062 {
1063         if (entering(tcp)) {
1064                 printpath(tcp, tcp->u_arg[0]);
1065                 if (!verbose(tcp))
1066                         tprintf(", %#lx", tcp->u_arg[1]);
1067                 else {
1068                         tprints(", [");
1069                         printargv(tcp, tcp->u_arg[1]);
1070                         tprints("]");
1071                 }
1072                 if (!verbose(tcp))
1073                         tprintf(", %#lx", tcp->u_arg[2]);
1074                 else if (abbrev(tcp))
1075                         printargc(", [/* %d var%s */]", tcp, tcp->u_arg[2]);
1076                 else {
1077                         tprints(", [");
1078                         printargv(tcp, tcp->u_arg[2]);
1079                         tprints("]");
1080                 }
1081         }
1082         return 0;
1083 }
1084
1085 #if defined(TCB_WAITEXECVE)
1086 int
1087 internal_exec(struct tcb *tcp)
1088 {
1089         if (exiting(tcp) && syserror(tcp))
1090                 tcp->flags &= ~TCB_WAITEXECVE;
1091         else {
1092                 /* Maybe we have post-execve SIGTRAP suppressed? */
1093                 if (!(ptrace_setoptions & PTRACE_O_TRACEEXEC))
1094                         tcp->flags |= TCB_WAITEXECVE; /* no */
1095         }
1096         return 0;
1097 }
1098 #endif
1099
1100 #ifndef __WNOTHREAD
1101 #define __WNOTHREAD     0x20000000
1102 #endif
1103 #ifndef __WALL
1104 #define __WALL          0x40000000
1105 #endif
1106 #ifndef __WCLONE
1107 #define __WCLONE        0x80000000
1108 #endif
1109
1110 static const struct xlat wait4_options[] = {
1111         { WNOHANG,      "WNOHANG"       },
1112 #ifndef WSTOPPED
1113         { WUNTRACED,    "WUNTRACED"     },
1114 #endif
1115 #ifdef WEXITED
1116         { WEXITED,      "WEXITED"       },
1117 #endif
1118 #ifdef WTRAPPED
1119         { WTRAPPED,     "WTRAPPED"      },
1120 #endif
1121 #ifdef WSTOPPED
1122         { WSTOPPED,     "WSTOPPED"      },
1123 #endif
1124 #ifdef WCONTINUED
1125         { WCONTINUED,   "WCONTINUED"    },
1126 #endif
1127 #ifdef WNOWAIT
1128         { WNOWAIT,      "WNOWAIT"       },
1129 #endif
1130 #ifdef __WCLONE
1131         { __WCLONE,     "__WCLONE"      },
1132 #endif
1133 #ifdef __WALL
1134         { __WALL,       "__WALL"        },
1135 #endif
1136 #ifdef __WNOTHREAD
1137         { __WNOTHREAD,  "__WNOTHREAD"   },
1138 #endif
1139         { 0,            NULL            },
1140 };
1141
1142 #if !defined WCOREFLAG && defined WCOREFLG
1143 # define WCOREFLAG WCOREFLG
1144 #endif
1145 #ifndef WCOREFLAG
1146 # define WCOREFLAG 0x80
1147 #endif
1148 #ifndef WCOREDUMP
1149 # define WCOREDUMP(status) ((status) & 0200)
1150 #endif
1151
1152 #ifndef W_STOPCODE
1153 #define W_STOPCODE(sig)         ((sig) << 8 | 0x7f)
1154 #endif
1155 #ifndef W_EXITCODE
1156 #define W_EXITCODE(ret, sig)    ((ret) << 8 | (sig))
1157 #endif
1158
1159 static int
1160 printstatus(int status)
1161 {
1162         int exited = 0;
1163
1164         /*
1165          * Here is a tricky presentation problem.  This solution
1166          * is still not entirely satisfactory but since there
1167          * are no wait status constructors it will have to do.
1168          */
1169         if (WIFSTOPPED(status)) {
1170                 tprintf("[{WIFSTOPPED(s) && WSTOPSIG(s) == %s}",
1171                         signame(WSTOPSIG(status)));
1172                 status &= ~W_STOPCODE(WSTOPSIG(status));
1173         }
1174         else if (WIFSIGNALED(status)) {
1175                 tprintf("[{WIFSIGNALED(s) && WTERMSIG(s) == %s%s}",
1176                         signame(WTERMSIG(status)),
1177                         WCOREDUMP(status) ? " && WCOREDUMP(s)" : "");
1178                 status &= ~(W_EXITCODE(0, WTERMSIG(status)) | WCOREFLAG);
1179         }
1180         else if (WIFEXITED(status)) {
1181                 tprintf("[{WIFEXITED(s) && WEXITSTATUS(s) == %d}",
1182                         WEXITSTATUS(status));
1183                 exited = 1;
1184                 status &= ~W_EXITCODE(WEXITSTATUS(status), 0);
1185         }
1186         else {
1187                 tprintf("[%#x]", status);
1188                 return 0;
1189         }
1190
1191         if (status == 0)
1192                 tprints("]");
1193         else
1194                 tprintf(" | %#x]", status);
1195
1196         return exited;
1197 }
1198
1199 static int
1200 printwaitn(struct tcb *tcp, int n, int bitness)
1201 {
1202         int status;
1203
1204         if (entering(tcp)) {
1205                 /* On Linux, kernel-side pid_t is typedef'ed to int
1206                  * on all arches. Also, glibc-2.8 truncates wait3 and wait4
1207                  * pid argument to int on 64bit arches, producing,
1208                  * for example, wait4(4294967295, ...) instead of -1
1209                  * in strace. We have to use int here, not long.
1210                  */
1211                 int pid = tcp->u_arg[0];
1212                 tprintf("%d, ", pid);
1213         } else {
1214                 /* status */
1215                 if (!tcp->u_arg[1])
1216                         tprints("NULL");
1217                 else if (syserror(tcp) || tcp->u_rval == 0)
1218                         tprintf("%#lx", tcp->u_arg[1]);
1219                 else if (umove(tcp, tcp->u_arg[1], &status) < 0)
1220                         tprints("[?]");
1221                 else
1222                         printstatus(status);
1223                 /* options */
1224                 tprints(", ");
1225                 printflags(wait4_options, tcp->u_arg[2], "W???");
1226                 if (n == 4) {
1227                         tprints(", ");
1228                         /* usage */
1229                         if (!tcp->u_arg[3])
1230                                 tprints("NULL");
1231                         else if (tcp->u_rval > 0) {
1232 #ifdef ALPHA
1233                                 if (bitness)
1234                                         printrusage32(tcp, tcp->u_arg[3]);
1235                                 else
1236 #endif
1237                                         printrusage(tcp, tcp->u_arg[3]);
1238                         }
1239                         else
1240                                 tprintf("%#lx", tcp->u_arg[3]);
1241                 }
1242         }
1243         return 0;
1244 }
1245
1246 int
1247 sys_waitpid(struct tcb *tcp)
1248 {
1249         return printwaitn(tcp, 3, 0);
1250 }
1251
1252 int
1253 sys_wait4(struct tcb *tcp)
1254 {
1255         return printwaitn(tcp, 4, 0);
1256 }
1257
1258 #ifdef ALPHA
1259 int
1260 sys_osf_wait4(struct tcb *tcp)
1261 {
1262         return printwaitn(tcp, 4, 1);
1263 }
1264 #endif
1265
1266 static const struct xlat waitid_types[] = {
1267         { P_PID,        "P_PID"         },
1268 #ifdef P_PPID
1269         { P_PPID,       "P_PPID"        },
1270 #endif
1271         { P_PGID,       "P_PGID"        },
1272 #ifdef P_SID
1273         { P_SID,        "P_SID"         },
1274 #endif
1275 #ifdef P_CID
1276         { P_CID,        "P_CID"         },
1277 #endif
1278 #ifdef P_UID
1279         { P_UID,        "P_UID"         },
1280 #endif
1281 #ifdef P_GID
1282         { P_GID,        "P_GID"         },
1283 #endif
1284         { P_ALL,        "P_ALL"         },
1285 #ifdef P_LWPID
1286         { P_LWPID,      "P_LWPID"       },
1287 #endif
1288         { 0,            NULL            },
1289 };
1290
1291 int
1292 sys_waitid(struct tcb *tcp)
1293 {
1294         siginfo_t si;
1295
1296         if (entering(tcp)) {
1297                 printxval(waitid_types, tcp->u_arg[0], "P_???");
1298                 tprintf(", %ld, ", tcp->u_arg[1]);
1299         }
1300         else {
1301                 /* siginfo */
1302                 if (!tcp->u_arg[2])
1303                         tprints("NULL");
1304                 else if (syserror(tcp))
1305                         tprintf("%#lx", tcp->u_arg[2]);
1306                 else if (umove(tcp, tcp->u_arg[2], &si) < 0)
1307                         tprints("{???}");
1308                 else
1309                         printsiginfo(&si, verbose(tcp));
1310                 /* options */
1311                 tprints(", ");
1312                 printflags(wait4_options, tcp->u_arg[3], "W???");
1313                 if (tcp->u_nargs > 4) {
1314                         /* usage */
1315                         tprints(", ");
1316                         if (!tcp->u_arg[4])
1317                                 tprints("NULL");
1318                         else if (tcp->u_error)
1319                                 tprintf("%#lx", tcp->u_arg[4]);
1320                         else
1321                                 printrusage(tcp, tcp->u_arg[4]);
1322                 }
1323         }
1324         return 0;
1325 }
1326
1327 int
1328 sys_uname(struct tcb *tcp)
1329 {
1330         struct utsname uname;
1331
1332         if (exiting(tcp)) {
1333                 if (syserror(tcp) || !verbose(tcp))
1334                         tprintf("%#lx", tcp->u_arg[0]);
1335                 else if (umove(tcp, tcp->u_arg[0], &uname) < 0)
1336                         tprints("{...}");
1337                 else if (!abbrev(tcp)) {
1338
1339                         tprintf("{sysname=\"%s\", nodename=\"%s\", ",
1340                                 uname.sysname, uname.nodename);
1341                         tprintf("release=\"%s\", version=\"%s\", ",
1342                                 uname.release, uname.version);
1343                         tprintf("machine=\"%s\"", uname.machine);
1344 #ifndef __GLIBC__
1345                         tprintf(", domainname=\"%s\"", uname.domainname);
1346 #endif
1347                         tprints("}");
1348                 }
1349                 else
1350                         tprintf("{sys=\"%s\", node=\"%s\", ...}",
1351                                 uname.sysname, uname.nodename);
1352         }
1353         return 0;
1354 }
1355
1356 static const struct xlat ptrace_cmds[] = {
1357         { PTRACE_TRACEME,       "PTRACE_TRACEME"        },
1358         { PTRACE_PEEKTEXT,      "PTRACE_PEEKTEXT"       },
1359         { PTRACE_PEEKDATA,      "PTRACE_PEEKDATA"       },
1360         { PTRACE_PEEKUSER,      "PTRACE_PEEKUSER"       },
1361         { PTRACE_POKETEXT,      "PTRACE_POKETEXT"       },
1362         { PTRACE_POKEDATA,      "PTRACE_POKEDATA"       },
1363         { PTRACE_POKEUSER,      "PTRACE_POKEUSER"       },
1364         { PTRACE_CONT,          "PTRACE_CONT"           },
1365         { PTRACE_KILL,          "PTRACE_KILL"           },
1366         { PTRACE_SINGLESTEP,    "PTRACE_SINGLESTEP"     },
1367         { PTRACE_ATTACH,        "PTRACE_ATTACH"         },
1368         { PTRACE_DETACH,        "PTRACE_DETACH"         },
1369 #  ifdef PTRACE_GETREGS
1370         { PTRACE_GETREGS,       "PTRACE_GETREGS"        },
1371 #  endif
1372 #  ifdef PTRACE_SETREGS
1373         { PTRACE_SETREGS,       "PTRACE_SETREGS"        },
1374 #  endif
1375 #  ifdef PTRACE_GETFPREGS
1376         { PTRACE_GETFPREGS,     "PTRACE_GETFPREGS"      },
1377 #  endif
1378 #  ifdef PTRACE_SETFPREGS
1379         { PTRACE_SETFPREGS,     "PTRACE_SETFPREGS"      },
1380 #  endif
1381 #  ifdef PTRACE_GETFPXREGS
1382         { PTRACE_GETFPXREGS,    "PTRACE_GETFPXREGS"     },
1383 #  endif
1384 #  ifdef PTRACE_SETFPXREGS
1385         { PTRACE_SETFPXREGS,    "PTRACE_SETFPXREGS"     },
1386 #  endif
1387 #  ifdef PTRACE_GETVRREGS
1388         { PTRACE_GETVRREGS,     "PTRACE_GETVRREGS"      },
1389 #  endif
1390 #  ifdef PTRACE_SETVRREGS
1391         { PTRACE_SETVRREGS,     "PTRACE_SETVRREGS"      },
1392 #  endif
1393 #  ifdef PTRACE_SETOPTIONS
1394         { PTRACE_SETOPTIONS,    "PTRACE_SETOPTIONS"     },
1395 #  endif
1396 #  ifdef PTRACE_GETEVENTMSG
1397         { PTRACE_GETEVENTMSG,   "PTRACE_GETEVENTMSG"    },
1398 #  endif
1399 #  ifdef PTRACE_GETSIGINFO
1400         { PTRACE_GETSIGINFO,    "PTRACE_GETSIGINFO"     },
1401 #  endif
1402 #  ifdef PTRACE_SETSIGINFO
1403         { PTRACE_SETSIGINFO,    "PTRACE_SETSIGINFO"     },
1404 #  endif
1405 #  ifdef PTRACE_GETREGSET
1406         { PTRACE_GETREGSET,     "PTRACE_GETREGSET"      },
1407 #  endif
1408 #  ifdef PTRACE_SETREGSET
1409         { PTRACE_SETREGSET,     "PTRACE_SETREGSET"      },
1410 #  endif
1411 #  ifdef PTRACE_SET_SYSCALL
1412         { PTRACE_SET_SYSCALL,   "PTRACE_SET_SYSCALL"    },
1413 #  endif
1414 #  ifdef PTRACE_SEIZE
1415         { PTRACE_SEIZE,         "PTRACE_SEIZE"          },
1416 #  endif
1417 #  ifdef PTRACE_INTERRUPT
1418         { PTRACE_INTERRUPT,     "PTRACE_INTERRUPT"      },
1419 #  endif
1420 #  ifdef PTRACE_LISTEN
1421         { PTRACE_LISTEN,        "PTRACE_LISTEN"         },
1422 #  endif
1423         { PTRACE_SYSCALL,       "PTRACE_SYSCALL"        },
1424
1425         { 0,                    NULL                    },
1426 };
1427
1428 #  ifdef PTRACE_SETOPTIONS
1429 static const struct xlat ptrace_setoptions_flags[] = {
1430 #   ifdef PTRACE_O_TRACESYSGOOD
1431         { PTRACE_O_TRACESYSGOOD,"PTRACE_O_TRACESYSGOOD" },
1432 #   endif
1433 #   ifdef PTRACE_O_TRACEFORK
1434         { PTRACE_O_TRACEFORK,   "PTRACE_O_TRACEFORK"    },
1435 #   endif
1436 #   ifdef PTRACE_O_TRACEVFORK
1437         { PTRACE_O_TRACEVFORK,  "PTRACE_O_TRACEVFORK"   },
1438 #   endif
1439 #   ifdef PTRACE_O_TRACECLONE
1440         { PTRACE_O_TRACECLONE,  "PTRACE_O_TRACECLONE"   },
1441 #   endif
1442 #   ifdef PTRACE_O_TRACEEXEC
1443         { PTRACE_O_TRACEEXEC,   "PTRACE_O_TRACEEXEC"    },
1444 #   endif
1445 #   ifdef PTRACE_O_TRACEVFORKDONE
1446         { PTRACE_O_TRACEVFORKDONE,"PTRACE_O_TRACEVFORKDONE"},
1447 #   endif
1448 #   ifdef PTRACE_O_TRACEEXIT
1449         { PTRACE_O_TRACEEXIT,   "PTRACE_O_TRACEEXIT"    },
1450 #   endif
1451         { 0,                    NULL                    },
1452 };
1453 #  endif /* PTRACE_SETOPTIONS */
1454
1455 const struct xlat struct_user_offsets[] = {
1456 #   if defined(S390) || defined(S390X)
1457         { PT_PSWMASK,           "psw_mask"                              },
1458         { PT_PSWADDR,           "psw_addr"                              },
1459         { PT_GPR0,              "gpr0"                                  },
1460         { PT_GPR1,              "gpr1"                                  },
1461         { PT_GPR2,              "gpr2"                                  },
1462         { PT_GPR3,              "gpr3"                                  },
1463         { PT_GPR4,              "gpr4"                                  },
1464         { PT_GPR5,              "gpr5"                                  },
1465         { PT_GPR6,              "gpr6"                                  },
1466         { PT_GPR7,              "gpr7"                                  },
1467         { PT_GPR8,              "gpr8"                                  },
1468         { PT_GPR9,              "gpr9"                                  },
1469         { PT_GPR10,             "gpr10"                                 },
1470         { PT_GPR11,             "gpr11"                                 },
1471         { PT_GPR12,             "gpr12"                                 },
1472         { PT_GPR13,             "gpr13"                                 },
1473         { PT_GPR14,             "gpr14"                                 },
1474         { PT_GPR15,             "gpr15"                                 },
1475         { PT_ACR0,              "acr0"                                  },
1476         { PT_ACR1,              "acr1"                                  },
1477         { PT_ACR2,              "acr2"                                  },
1478         { PT_ACR3,              "acr3"                                  },
1479         { PT_ACR4,              "acr4"                                  },
1480         { PT_ACR5,              "acr5"                                  },
1481         { PT_ACR6,              "acr6"                                  },
1482         { PT_ACR7,              "acr7"                                  },
1483         { PT_ACR8,              "acr8"                                  },
1484         { PT_ACR9,              "acr9"                                  },
1485         { PT_ACR10,             "acr10"                                 },
1486         { PT_ACR11,             "acr11"                                 },
1487         { PT_ACR12,             "acr12"                                 },
1488         { PT_ACR13,             "acr13"                                 },
1489         { PT_ACR14,             "acr14"                                 },
1490         { PT_ACR15,             "acr15"                                 },
1491         { PT_ORIGGPR2,          "orig_gpr2"                             },
1492         { PT_FPC,               "fpc"                                   },
1493 #    if defined(S390)
1494         { PT_FPR0_HI,           "fpr0.hi"                               },
1495         { PT_FPR0_LO,           "fpr0.lo"                               },
1496         { PT_FPR1_HI,           "fpr1.hi"                               },
1497         { PT_FPR1_LO,           "fpr1.lo"                               },
1498         { PT_FPR2_HI,           "fpr2.hi"                               },
1499         { PT_FPR2_LO,           "fpr2.lo"                               },
1500         { PT_FPR3_HI,           "fpr3.hi"                               },
1501         { PT_FPR3_LO,           "fpr3.lo"                               },
1502         { PT_FPR4_HI,           "fpr4.hi"                               },
1503         { PT_FPR4_LO,           "fpr4.lo"                               },
1504         { PT_FPR5_HI,           "fpr5.hi"                               },
1505         { PT_FPR5_LO,           "fpr5.lo"                               },
1506         { PT_FPR6_HI,           "fpr6.hi"                               },
1507         { PT_FPR6_LO,           "fpr6.lo"                               },
1508         { PT_FPR7_HI,           "fpr7.hi"                               },
1509         { PT_FPR7_LO,           "fpr7.lo"                               },
1510         { PT_FPR8_HI,           "fpr8.hi"                               },
1511         { PT_FPR8_LO,           "fpr8.lo"                               },
1512         { PT_FPR9_HI,           "fpr9.hi"                               },
1513         { PT_FPR9_LO,           "fpr9.lo"                               },
1514         { PT_FPR10_HI,          "fpr10.hi"                              },
1515         { PT_FPR10_LO,          "fpr10.lo"                              },
1516         { PT_FPR11_HI,          "fpr11.hi"                              },
1517         { PT_FPR11_LO,          "fpr11.lo"                              },
1518         { PT_FPR12_HI,          "fpr12.hi"                              },
1519         { PT_FPR12_LO,          "fpr12.lo"                              },
1520         { PT_FPR13_HI,          "fpr13.hi"                              },
1521         { PT_FPR13_LO,          "fpr13.lo"                              },
1522         { PT_FPR14_HI,          "fpr14.hi"                              },
1523         { PT_FPR14_LO,          "fpr14.lo"                              },
1524         { PT_FPR15_HI,          "fpr15.hi"                              },
1525         { PT_FPR15_LO,          "fpr15.lo"                              },
1526 #    endif
1527 #    if defined(S390X)
1528         { PT_FPR0,              "fpr0"                                  },
1529         { PT_FPR1,              "fpr1"                                  },
1530         { PT_FPR2,              "fpr2"                                  },
1531         { PT_FPR3,              "fpr3"                                  },
1532         { PT_FPR4,              "fpr4"                                  },
1533         { PT_FPR5,              "fpr5"                                  },
1534         { PT_FPR6,              "fpr6"                                  },
1535         { PT_FPR7,              "fpr7"                                  },
1536         { PT_FPR8,              "fpr8"                                  },
1537         { PT_FPR9,              "fpr9"                                  },
1538         { PT_FPR10,             "fpr10"                                 },
1539         { PT_FPR11,             "fpr11"                                 },
1540         { PT_FPR12,             "fpr12"                                 },
1541         { PT_FPR13,             "fpr13"                                 },
1542         { PT_FPR14,             "fpr14"                                 },
1543         { PT_FPR15,             "fpr15"                                 },
1544 #    endif
1545         { PT_CR_9,              "cr9"                                   },
1546         { PT_CR_10,             "cr10"                                  },
1547         { PT_CR_11,             "cr11"                                  },
1548         { PT_IEEE_IP,           "ieee_exception_ip"                     },
1549 #   elif defined(SPARC)
1550         /* XXX No support for these offsets yet. */
1551 #   elif defined(HPPA)
1552         /* XXX No support for these offsets yet. */
1553 #   elif defined(POWERPC)
1554 #    ifndef PT_ORIG_R3
1555 #     define PT_ORIG_R3 34
1556 #    endif
1557 #    define REGSIZE (sizeof(unsigned long))
1558         { REGSIZE*PT_R0,                "r0"                            },
1559         { REGSIZE*PT_R1,                "r1"                            },
1560         { REGSIZE*PT_R2,                "r2"                            },
1561         { REGSIZE*PT_R3,                "r3"                            },
1562         { REGSIZE*PT_R4,                "r4"                            },
1563         { REGSIZE*PT_R5,                "r5"                            },
1564         { REGSIZE*PT_R6,                "r6"                            },
1565         { REGSIZE*PT_R7,                "r7"                            },
1566         { REGSIZE*PT_R8,                "r8"                            },
1567         { REGSIZE*PT_R9,                "r9"                            },
1568         { REGSIZE*PT_R10,               "r10"                           },
1569         { REGSIZE*PT_R11,               "r11"                           },
1570         { REGSIZE*PT_R12,               "r12"                           },
1571         { REGSIZE*PT_R13,               "r13"                           },
1572         { REGSIZE*PT_R14,               "r14"                           },
1573         { REGSIZE*PT_R15,               "r15"                           },
1574         { REGSIZE*PT_R16,               "r16"                           },
1575         { REGSIZE*PT_R17,               "r17"                           },
1576         { REGSIZE*PT_R18,               "r18"                           },
1577         { REGSIZE*PT_R19,               "r19"                           },
1578         { REGSIZE*PT_R20,               "r20"                           },
1579         { REGSIZE*PT_R21,               "r21"                           },
1580         { REGSIZE*PT_R22,               "r22"                           },
1581         { REGSIZE*PT_R23,               "r23"                           },
1582         { REGSIZE*PT_R24,               "r24"                           },
1583         { REGSIZE*PT_R25,               "r25"                           },
1584         { REGSIZE*PT_R26,               "r26"                           },
1585         { REGSIZE*PT_R27,               "r27"                           },
1586         { REGSIZE*PT_R28,               "r28"                           },
1587         { REGSIZE*PT_R29,               "r29"                           },
1588         { REGSIZE*PT_R30,               "r30"                           },
1589         { REGSIZE*PT_R31,               "r31"                           },
1590         { REGSIZE*PT_NIP,               "NIP"                           },
1591         { REGSIZE*PT_MSR,               "MSR"                           },
1592         { REGSIZE*PT_ORIG_R3,           "ORIG_R3"                       },
1593         { REGSIZE*PT_CTR,               "CTR"                           },
1594         { REGSIZE*PT_LNK,               "LNK"                           },
1595         { REGSIZE*PT_XER,               "XER"                           },
1596         { REGSIZE*PT_CCR,               "CCR"                           },
1597         { REGSIZE*PT_FPR0,              "FPR0"                          },
1598 #    undef REGSIZE
1599 #   elif defined(ALPHA)
1600         { 0,                    "r0"                                    },
1601         { 1,                    "r1"                                    },
1602         { 2,                    "r2"                                    },
1603         { 3,                    "r3"                                    },
1604         { 4,                    "r4"                                    },
1605         { 5,                    "r5"                                    },
1606         { 6,                    "r6"                                    },
1607         { 7,                    "r7"                                    },
1608         { 8,                    "r8"                                    },
1609         { 9,                    "r9"                                    },
1610         { 10,                   "r10"                                   },
1611         { 11,                   "r11"                                   },
1612         { 12,                   "r12"                                   },
1613         { 13,                   "r13"                                   },
1614         { 14,                   "r14"                                   },
1615         { 15,                   "r15"                                   },
1616         { 16,                   "r16"                                   },
1617         { 17,                   "r17"                                   },
1618         { 18,                   "r18"                                   },
1619         { 19,                   "r19"                                   },
1620         { 20,                   "r20"                                   },
1621         { 21,                   "r21"                                   },
1622         { 22,                   "r22"                                   },
1623         { 23,                   "r23"                                   },
1624         { 24,                   "r24"                                   },
1625         { 25,                   "r25"                                   },
1626         { 26,                   "r26"                                   },
1627         { 27,                   "r27"                                   },
1628         { 28,                   "r28"                                   },
1629         { 29,                   "gp"                                    },
1630         { 30,                   "fp"                                    },
1631         { 31,                   "zero"                                  },
1632         { 32,                   "fp0"                                   },
1633         { 33,                   "fp"                                    },
1634         { 34,                   "fp2"                                   },
1635         { 35,                   "fp3"                                   },
1636         { 36,                   "fp4"                                   },
1637         { 37,                   "fp5"                                   },
1638         { 38,                   "fp6"                                   },
1639         { 39,                   "fp7"                                   },
1640         { 40,                   "fp8"                                   },
1641         { 41,                   "fp9"                                   },
1642         { 42,                   "fp10"                                  },
1643         { 43,                   "fp11"                                  },
1644         { 44,                   "fp12"                                  },
1645         { 45,                   "fp13"                                  },
1646         { 46,                   "fp14"                                  },
1647         { 47,                   "fp15"                                  },
1648         { 48,                   "fp16"                                  },
1649         { 49,                   "fp17"                                  },
1650         { 50,                   "fp18"                                  },
1651         { 51,                   "fp19"                                  },
1652         { 52,                   "fp20"                                  },
1653         { 53,                   "fp21"                                  },
1654         { 54,                   "fp22"                                  },
1655         { 55,                   "fp23"                                  },
1656         { 56,                   "fp24"                                  },
1657         { 57,                   "fp25"                                  },
1658         { 58,                   "fp26"                                  },
1659         { 59,                   "fp27"                                  },
1660         { 60,                   "fp28"                                  },
1661         { 61,                   "fp29"                                  },
1662         { 62,                   "fp30"                                  },
1663         { 63,                   "fp31"                                  },
1664         { 64,                   "pc"                                    },
1665 #   elif defined(IA64)
1666         { PT_F32, "f32" }, { PT_F33, "f33" }, { PT_F34, "f34" },
1667         { PT_F35, "f35" }, { PT_F36, "f36" }, { PT_F37, "f37" },
1668         { PT_F38, "f38" }, { PT_F39, "f39" }, { PT_F40, "f40" },
1669         { PT_F41, "f41" }, { PT_F42, "f42" }, { PT_F43, "f43" },
1670         { PT_F44, "f44" }, { PT_F45, "f45" }, { PT_F46, "f46" },
1671         { PT_F47, "f47" }, { PT_F48, "f48" }, { PT_F49, "f49" },
1672         { PT_F50, "f50" }, { PT_F51, "f51" }, { PT_F52, "f52" },
1673         { PT_F53, "f53" }, { PT_F54, "f54" }, { PT_F55, "f55" },
1674         { PT_F56, "f56" }, { PT_F57, "f57" }, { PT_F58, "f58" },
1675         { PT_F59, "f59" }, { PT_F60, "f60" }, { PT_F61, "f61" },
1676         { PT_F62, "f62" }, { PT_F63, "f63" }, { PT_F64, "f64" },
1677         { PT_F65, "f65" }, { PT_F66, "f66" }, { PT_F67, "f67" },
1678         { PT_F68, "f68" }, { PT_F69, "f69" }, { PT_F70, "f70" },
1679         { PT_F71, "f71" }, { PT_F72, "f72" }, { PT_F73, "f73" },
1680         { PT_F74, "f74" }, { PT_F75, "f75" }, { PT_F76, "f76" },
1681         { PT_F77, "f77" }, { PT_F78, "f78" }, { PT_F79, "f79" },
1682         { PT_F80, "f80" }, { PT_F81, "f81" }, { PT_F82, "f82" },
1683         { PT_F83, "f83" }, { PT_F84, "f84" }, { PT_F85, "f85" },
1684         { PT_F86, "f86" }, { PT_F87, "f87" }, { PT_F88, "f88" },
1685         { PT_F89, "f89" }, { PT_F90, "f90" }, { PT_F91, "f91" },
1686         { PT_F92, "f92" }, { PT_F93, "f93" }, { PT_F94, "f94" },
1687         { PT_F95, "f95" }, { PT_F96, "f96" }, { PT_F97, "f97" },
1688         { PT_F98, "f98" }, { PT_F99, "f99" }, { PT_F100, "f100" },
1689         { PT_F101, "f101" }, { PT_F102, "f102" }, { PT_F103, "f103" },
1690         { PT_F104, "f104" }, { PT_F105, "f105" }, { PT_F106, "f106" },
1691         { PT_F107, "f107" }, { PT_F108, "f108" }, { PT_F109, "f109" },
1692         { PT_F110, "f110" }, { PT_F111, "f111" }, { PT_F112, "f112" },
1693         { PT_F113, "f113" }, { PT_F114, "f114" }, { PT_F115, "f115" },
1694         { PT_F116, "f116" }, { PT_F117, "f117" }, { PT_F118, "f118" },
1695         { PT_F119, "f119" }, { PT_F120, "f120" }, { PT_F121, "f121" },
1696         { PT_F122, "f122" }, { PT_F123, "f123" }, { PT_F124, "f124" },
1697         { PT_F125, "f125" }, { PT_F126, "f126" }, { PT_F127, "f127" },
1698         /* switch stack: */
1699         { PT_F2, "f2" }, { PT_F3, "f3" }, { PT_F4, "f4" },
1700         { PT_F5, "f5" }, { PT_F10, "f10" }, { PT_F11, "f11" },
1701         { PT_F12, "f12" }, { PT_F13, "f13" }, { PT_F14, "f14" },
1702         { PT_F15, "f15" }, { PT_F16, "f16" }, { PT_F17, "f17" },
1703         { PT_F18, "f18" }, { PT_F19, "f19" }, { PT_F20, "f20" },
1704         { PT_F21, "f21" }, { PT_F22, "f22" }, { PT_F23, "f23" },
1705         { PT_F24, "f24" }, { PT_F25, "f25" }, { PT_F26, "f26" },
1706         { PT_F27, "f27" }, { PT_F28, "f28" }, { PT_F29, "f29" },
1707         { PT_F30, "f30" }, { PT_F31, "f31" }, { PT_R4, "r4" },
1708         { PT_R5, "r5" }, { PT_R6, "r6" }, { PT_R7, "r7" },
1709         { PT_B1, "b1" }, { PT_B2, "b2" }, { PT_B3, "b3" },
1710         { PT_B4, "b4" }, { PT_B5, "b5" },
1711         { PT_AR_EC, "ar.ec" }, { PT_AR_LC, "ar.lc" },
1712         /* pt_regs */
1713         { PT_CR_IPSR, "psr" }, { PT_CR_IIP, "ip" },
1714         { PT_CFM, "cfm" }, { PT_AR_UNAT, "ar.unat" },
1715         { PT_AR_PFS, "ar.pfs" }, { PT_AR_RSC, "ar.rsc" },
1716         { PT_AR_RNAT, "ar.rnat" }, { PT_AR_BSPSTORE, "ar.bspstore" },
1717         { PT_PR, "pr" }, { PT_B6, "b6" }, { PT_AR_BSP, "ar.bsp" },
1718         { PT_R1, "r1" }, { PT_R2, "r2" }, { PT_R3, "r3" },
1719         { PT_R12, "r12" }, { PT_R13, "r13" }, { PT_R14, "r14" },
1720         { PT_R15, "r15" }, { PT_R8, "r8" }, { PT_R9, "r9" },
1721         { PT_R10, "r10" }, { PT_R11, "r11" }, { PT_R16, "r16" },
1722         { PT_R17, "r17" }, { PT_R18, "r18" }, { PT_R19, "r19" },
1723         { PT_R20, "r20" }, { PT_R21, "r21" }, { PT_R22, "r22" },
1724         { PT_R23, "r23" }, { PT_R24, "r24" }, { PT_R25, "r25" },
1725         { PT_R26, "r26" }, { PT_R27, "r27" }, { PT_R28, "r28" },
1726         { PT_R29, "r29" }, { PT_R30, "r30" }, { PT_R31, "r31" },
1727         { PT_AR_CCV, "ar.ccv" }, { PT_AR_FPSR, "ar.fpsr" },
1728         { PT_B0, "b0" }, { PT_B7, "b7" }, { PT_F6, "f6" },
1729         { PT_F7, "f7" }, { PT_F8, "f8" }, { PT_F9, "f9" },
1730 #    ifdef PT_AR_CSD
1731         { PT_AR_CSD, "ar.csd" },
1732 #    endif
1733 #    ifdef PT_AR_SSD
1734         { PT_AR_SSD, "ar.ssd" },
1735 #    endif
1736         { PT_DBR, "dbr" }, { PT_IBR, "ibr" }, { PT_PMD, "pmd" },
1737 #   elif defined(I386)
1738         { 4*EBX,                "4*EBX"                                 },
1739         { 4*ECX,                "4*ECX"                                 },
1740         { 4*EDX,                "4*EDX"                                 },
1741         { 4*ESI,                "4*ESI"                                 },
1742         { 4*EDI,                "4*EDI"                                 },
1743         { 4*EBP,                "4*EBP"                                 },
1744         { 4*EAX,                "4*EAX"                                 },
1745         { 4*DS,                 "4*DS"                                  },
1746         { 4*ES,                 "4*ES"                                  },
1747         { 4*FS,                 "4*FS"                                  },
1748         { 4*GS,                 "4*GS"                                  },
1749         { 4*ORIG_EAX,           "4*ORIG_EAX"                            },
1750         { 4*EIP,                "4*EIP"                                 },
1751         { 4*CS,                 "4*CS"                                  },
1752         { 4*EFL,                "4*EFL"                                 },
1753         { 4*UESP,               "4*UESP"                                },
1754         { 4*SS,                 "4*SS"                                  },
1755 #   elif defined(X86_64)
1756         { 8*R15,                "8*R15"                                 },
1757         { 8*R14,                "8*R14"                                 },
1758         { 8*R13,                "8*R13"                                 },
1759         { 8*R12,                "8*R12"                                 },
1760         { 8*RBP,                "8*RBP"                                 },
1761         { 8*RBX,                "8*RBX"                                 },
1762         { 8*R11,                "8*R11"                                 },
1763         { 8*R10,                "8*R10"                                 },
1764         { 8*R9,                 "8*R9"                                  },
1765         { 8*R8,                 "8*R8"                                  },
1766         { 8*RAX,                "8*RAX"                                 },
1767         { 8*RCX,                "8*RCX"                                 },
1768         { 8*RDX,                "8*RDX"                                 },
1769         { 8*RSI,                "8*RSI"                                 },
1770         { 8*RDI,                "8*RDI"                                 },
1771         { 8*ORIG_RAX,           "8*ORIG_RAX"                            },
1772         { 8*RIP,                "8*RIP"                                 },
1773         { 8*CS,                 "8*CS"                                  },
1774         { 8*EFLAGS,             "8*EFL"                                 },
1775         { 8*RSP,                "8*RSP"                                 },
1776         { 8*SS,                 "8*SS"                                  },
1777 #   elif defined(M68K)
1778         { 4*PT_D1,              "4*PT_D1"                               },
1779         { 4*PT_D2,              "4*PT_D2"                               },
1780         { 4*PT_D3,              "4*PT_D3"                               },
1781         { 4*PT_D4,              "4*PT_D4"                               },
1782         { 4*PT_D5,              "4*PT_D5"                               },
1783         { 4*PT_D6,              "4*PT_D6"                               },
1784         { 4*PT_D7,              "4*PT_D7"                               },
1785         { 4*PT_A0,              "4*PT_A0"                               },
1786         { 4*PT_A1,              "4*PT_A1"                               },
1787         { 4*PT_A2,              "4*PT_A2"                               },
1788         { 4*PT_A3,              "4*PT_A3"                               },
1789         { 4*PT_A4,              "4*PT_A4"                               },
1790         { 4*PT_A5,              "4*PT_A5"                               },
1791         { 4*PT_A6,              "4*PT_A6"                               },
1792         { 4*PT_D0,              "4*PT_D0"                               },
1793         { 4*PT_USP,             "4*PT_USP"                              },
1794         { 4*PT_ORIG_D0,         "4*PT_ORIG_D0"                          },
1795         { 4*PT_SR,              "4*PT_SR"                               },
1796         { 4*PT_PC,              "4*PT_PC"                               },
1797 #   elif defined(SH)
1798         { 4*REG_REG0,           "4*REG_REG0"                            },
1799         { 4*(REG_REG0+1),       "4*REG_REG1"                            },
1800         { 4*(REG_REG0+2),       "4*REG_REG2"                            },
1801         { 4*(REG_REG0+3),       "4*REG_REG3"                            },
1802         { 4*(REG_REG0+4),       "4*REG_REG4"                            },
1803         { 4*(REG_REG0+5),       "4*REG_REG5"                            },
1804         { 4*(REG_REG0+6),       "4*REG_REG6"                            },
1805         { 4*(REG_REG0+7),       "4*REG_REG7"                            },
1806         { 4*(REG_REG0+8),       "4*REG_REG8"                            },
1807         { 4*(REG_REG0+9),       "4*REG_REG9"                            },
1808         { 4*(REG_REG0+10),      "4*REG_REG10"                           },
1809         { 4*(REG_REG0+11),      "4*REG_REG11"                           },
1810         { 4*(REG_REG0+12),      "4*REG_REG12"                           },
1811         { 4*(REG_REG0+13),      "4*REG_REG13"                           },
1812         { 4*(REG_REG0+14),      "4*REG_REG14"                           },
1813         { 4*REG_REG15,          "4*REG_REG15"                           },
1814         { 4*REG_PC,             "4*REG_PC"                              },
1815         { 4*REG_PR,             "4*REG_PR"                              },
1816         { 4*REG_SR,             "4*REG_SR"                              },
1817         { 4*REG_GBR,            "4*REG_GBR"                             },
1818         { 4*REG_MACH,           "4*REG_MACH"                            },
1819         { 4*REG_MACL,           "4*REG_MACL"                            },
1820         { 4*REG_SYSCALL,        "4*REG_SYSCALL"                         },
1821         { 4*REG_FPUL,           "4*REG_FPUL"                            },
1822         { 4*REG_FPREG0,         "4*REG_FPREG0"                          },
1823         { 4*(REG_FPREG0+1),     "4*REG_FPREG1"                          },
1824         { 4*(REG_FPREG0+2),     "4*REG_FPREG2"                          },
1825         { 4*(REG_FPREG0+3),     "4*REG_FPREG3"                          },
1826         { 4*(REG_FPREG0+4),     "4*REG_FPREG4"                          },
1827         { 4*(REG_FPREG0+5),     "4*REG_FPREG5"                          },
1828         { 4*(REG_FPREG0+6),     "4*REG_FPREG6"                          },
1829         { 4*(REG_FPREG0+7),     "4*REG_FPREG7"                          },
1830         { 4*(REG_FPREG0+8),     "4*REG_FPREG8"                          },
1831         { 4*(REG_FPREG0+9),     "4*REG_FPREG9"                          },
1832         { 4*(REG_FPREG0+10),    "4*REG_FPREG10"                         },
1833         { 4*(REG_FPREG0+11),    "4*REG_FPREG11"                         },
1834         { 4*(REG_FPREG0+12),    "4*REG_FPREG12"                         },
1835         { 4*(REG_FPREG0+13),    "4*REG_FPREG13"                         },
1836         { 4*(REG_FPREG0+14),    "4*REG_FPREG14"                         },
1837         { 4*REG_FPREG15,        "4*REG_FPREG15"                         },
1838 #    ifdef REG_XDREG0
1839         { 4*REG_XDREG0,         "4*REG_XDREG0"                          },
1840         { 4*(REG_XDREG0+2),     "4*REG_XDREG2"                          },
1841         { 4*(REG_XDREG0+4),     "4*REG_XDREG4"                          },
1842         { 4*(REG_XDREG0+6),     "4*REG_XDREG6"                          },
1843         { 4*(REG_XDREG0+8),     "4*REG_XDREG8"                          },
1844         { 4*(REG_XDREG0+10),    "4*REG_XDREG10"                         },
1845         { 4*(REG_XDREG0+12),    "4*REG_XDREG12"                         },
1846         { 4*REG_XDREG14,        "4*REG_XDREG14"                         },
1847 #    endif
1848         { 4*REG_FPSCR,          "4*REG_FPSCR"                           },
1849 #   elif defined(SH64)
1850         { 0,                    "PC(L)"                                 },
1851         { 4,                    "PC(U)"                                 },
1852         { 8,                    "SR(L)"                                 },
1853         { 12,                   "SR(U)"                                 },
1854         { 16,                   "syscall no.(L)"                        },
1855         { 20,                   "syscall_no.(U)"                        },
1856         { 24,                   "R0(L)"                                 },
1857         { 28,                   "R0(U)"                                 },
1858         { 32,                   "R1(L)"                                 },
1859         { 36,                   "R1(U)"                                 },
1860         { 40,                   "R2(L)"                                 },
1861         { 44,                   "R2(U)"                                 },
1862         { 48,                   "R3(L)"                                 },
1863         { 52,                   "R3(U)"                                 },
1864         { 56,                   "R4(L)"                                 },
1865         { 60,                   "R4(U)"                                 },
1866         { 64,                   "R5(L)"                                 },
1867         { 68,                   "R5(U)"                                 },
1868         { 72,                   "R6(L)"                                 },
1869         { 76,                   "R6(U)"                                 },
1870         { 80,                   "R7(L)"                                 },
1871         { 84,                   "R7(U)"                                 },
1872         { 88,                   "R8(L)"                                 },
1873         { 92,                   "R8(U)"                                 },
1874         { 96,                   "R9(L)"                                 },
1875         { 100,                  "R9(U)"                                 },
1876         { 104,                  "R10(L)"                                },
1877         { 108,                  "R10(U)"                                },
1878         { 112,                  "R11(L)"                                },
1879         { 116,                  "R11(U)"                                },
1880         { 120,                  "R12(L)"                                },
1881         { 124,                  "R12(U)"                                },
1882         { 128,                  "R13(L)"                                },
1883         { 132,                  "R13(U)"                                },
1884         { 136,                  "R14(L)"                                },
1885         { 140,                  "R14(U)"                                },
1886         { 144,                  "R15(L)"                                },
1887         { 148,                  "R15(U)"                                },
1888         { 152,                  "R16(L)"                                },
1889         { 156,                  "R16(U)"                                },
1890         { 160,                  "R17(L)"                                },
1891         { 164,                  "R17(U)"                                },
1892         { 168,                  "R18(L)"                                },
1893         { 172,                  "R18(U)"                                },
1894         { 176,                  "R19(L)"                                },
1895         { 180,                  "R19(U)"                                },
1896         { 184,                  "R20(L)"                                },
1897         { 188,                  "R20(U)"                                },
1898         { 192,                  "R21(L)"                                },
1899         { 196,                  "R21(U)"                                },
1900         { 200,                  "R22(L)"                                },
1901         { 204,                  "R22(U)"                                },
1902         { 208,                  "R23(L)"                                },
1903         { 212,                  "R23(U)"                                },
1904         { 216,                  "R24(L)"                                },
1905         { 220,                  "R24(U)"                                },
1906         { 224,                  "R25(L)"                                },
1907         { 228,                  "R25(U)"                                },
1908         { 232,                  "R26(L)"                                },
1909         { 236,                  "R26(U)"                                },
1910         { 240,                  "R27(L)"                                },
1911         { 244,                  "R27(U)"                                },
1912         { 248,                  "R28(L)"                                },
1913         { 252,                  "R28(U)"                                },
1914         { 256,                  "R29(L)"                                },
1915         { 260,                  "R29(U)"                                },
1916         { 264,                  "R30(L)"                                },
1917         { 268,                  "R30(U)"                                },
1918         { 272,                  "R31(L)"                                },
1919         { 276,                  "R31(U)"                                },
1920         { 280,                  "R32(L)"                                },
1921         { 284,                  "R32(U)"                                },
1922         { 288,                  "R33(L)"                                },
1923         { 292,                  "R33(U)"                                },
1924         { 296,                  "R34(L)"                                },
1925         { 300,                  "R34(U)"                                },
1926         { 304,                  "R35(L)"                                },
1927         { 308,                  "R35(U)"                                },
1928         { 312,                  "R36(L)"                                },
1929         { 316,                  "R36(U)"                                },
1930         { 320,                  "R37(L)"                                },
1931         { 324,                  "R37(U)"                                },
1932         { 328,                  "R38(L)"                                },
1933         { 332,                  "R38(U)"                                },
1934         { 336,                  "R39(L)"                                },
1935         { 340,                  "R39(U)"                                },
1936         { 344,                  "R40(L)"                                },
1937         { 348,                  "R40(U)"                                },
1938         { 352,                  "R41(L)"                                },
1939         { 356,                  "R41(U)"                                },
1940         { 360,                  "R42(L)"                                },
1941         { 364,                  "R42(U)"                                },
1942         { 368,                  "R43(L)"                                },
1943         { 372,                  "R43(U)"                                },
1944         { 376,                  "R44(L)"                                },
1945         { 380,                  "R44(U)"                                },
1946         { 384,                  "R45(L)"                                },
1947         { 388,                  "R45(U)"                                },
1948         { 392,                  "R46(L)"                                },
1949         { 396,                  "R46(U)"                                },
1950         { 400,                  "R47(L)"                                },
1951         { 404,                  "R47(U)"                                },
1952         { 408,                  "R48(L)"                                },
1953         { 412,                  "R48(U)"                                },
1954         { 416,                  "R49(L)"                                },
1955         { 420,                  "R49(U)"                                },
1956         { 424,                  "R50(L)"                                },
1957         { 428,                  "R50(U)"                                },
1958         { 432,                  "R51(L)"                                },
1959         { 436,                  "R51(U)"                                },
1960         { 440,                  "R52(L)"                                },
1961         { 444,                  "R52(U)"                                },
1962         { 448,                  "R53(L)"                                },
1963         { 452,                  "R53(U)"                                },
1964         { 456,                  "R54(L)"                                },
1965         { 460,                  "R54(U)"                                },
1966         { 464,                  "R55(L)"                                },
1967         { 468,                  "R55(U)"                                },
1968         { 472,                  "R56(L)"                                },
1969         { 476,                  "R56(U)"                                },
1970         { 480,                  "R57(L)"                                },
1971         { 484,                  "R57(U)"                                },
1972         { 488,                  "R58(L)"                                },
1973         { 492,                  "R58(U)"                                },
1974         { 496,                  "R59(L)"                                },
1975         { 500,                  "R59(U)"                                },
1976         { 504,                  "R60(L)"                                },
1977         { 508,                  "R60(U)"                                },
1978         { 512,                  "R61(L)"                                },
1979         { 516,                  "R61(U)"                                },
1980         { 520,                  "R62(L)"                                },
1981         { 524,                  "R62(U)"                                },
1982         { 528,                  "TR0(L)"                                },
1983         { 532,                  "TR0(U)"                                },
1984         { 536,                  "TR1(L)"                                },
1985         { 540,                  "TR1(U)"                                },
1986         { 544,                  "TR2(L)"                                },
1987         { 548,                  "TR2(U)"                                },
1988         { 552,                  "TR3(L)"                                },
1989         { 556,                  "TR3(U)"                                },
1990         { 560,                  "TR4(L)"                                },
1991         { 564,                  "TR4(U)"                                },
1992         { 568,                  "TR5(L)"                                },
1993         { 572,                  "TR5(U)"                                },
1994         { 576,                  "TR6(L)"                                },
1995         { 580,                  "TR6(U)"                                },
1996         { 584,                  "TR7(L)"                                },
1997         { 588,                  "TR7(U)"                                },
1998         /* This entry is in case pt_regs contains dregs (depends on
1999            the kernel build options). */
2000         { uoff(regs),           "offsetof(struct user, regs)"           },
2001         { uoff(fpu),            "offsetof(struct user, fpu)"            },
2002 #   elif defined(ARM)
2003         { uoff(regs.ARM_r0),    "r0"                                    },
2004         { uoff(regs.ARM_r1),    "r1"                                    },
2005         { uoff(regs.ARM_r2),    "r2"                                    },
2006         { uoff(regs.ARM_r3),    "r3"                                    },
2007         { uoff(regs.ARM_r4),    "r4"                                    },
2008         { uoff(regs.ARM_r5),    "r5"                                    },
2009         { uoff(regs.ARM_r6),    "r6"                                    },
2010         { uoff(regs.ARM_r7),    "r7"                                    },
2011         { uoff(regs.ARM_r8),    "r8"                                    },
2012         { uoff(regs.ARM_r9),    "r9"                                    },
2013         { uoff(regs.ARM_r10),   "r10"                                   },
2014         { uoff(regs.ARM_fp),    "fp"                                    },
2015         { uoff(regs.ARM_ip),    "ip"                                    },
2016         { uoff(regs.ARM_sp),    "sp"                                    },
2017         { uoff(regs.ARM_lr),    "lr"                                    },
2018         { uoff(regs.ARM_pc),    "pc"                                    },
2019         { uoff(regs.ARM_cpsr),  "cpsr"                                  },
2020 #   elif defined(AVR32)
2021         { uoff(regs.sr),        "sr"                                    },
2022         { uoff(regs.pc),        "pc"                                    },
2023         { uoff(regs.lr),        "lr"                                    },
2024         { uoff(regs.sp),        "sp"                                    },
2025         { uoff(regs.r12),       "r12"                                   },
2026         { uoff(regs.r11),       "r11"                                   },
2027         { uoff(regs.r10),       "r10"                                   },
2028         { uoff(regs.r9),        "r9"                                    },
2029         { uoff(regs.r8),        "r8"                                    },
2030         { uoff(regs.r7),        "r7"                                    },
2031         { uoff(regs.r6),        "r6"                                    },
2032         { uoff(regs.r5),        "r5"                                    },
2033         { uoff(regs.r4),        "r4"                                    },
2034         { uoff(regs.r3),        "r3"                                    },
2035         { uoff(regs.r2),        "r2"                                    },
2036         { uoff(regs.r1),        "r1"                                    },
2037         { uoff(regs.r0),        "r0"                                    },
2038         { uoff(regs.r12_orig),  "orig_r12"                              },
2039 #   elif defined(MIPS)
2040         { 0,                    "r0"                                    },
2041         { 1,                    "r1"                                    },
2042         { 2,                    "r2"                                    },
2043         { 3,                    "r3"                                    },
2044         { 4,                    "r4"                                    },
2045         { 5,                    "r5"                                    },
2046         { 6,                    "r6"                                    },
2047         { 7,                    "r7"                                    },
2048         { 8,                    "r8"                                    },
2049         { 9,                    "r9"                                    },
2050         { 10,                   "r10"                                   },
2051         { 11,                   "r11"                                   },
2052         { 12,                   "r12"                                   },
2053         { 13,                   "r13"                                   },
2054         { 14,                   "r14"                                   },
2055         { 15,                   "r15"                                   },
2056         { 16,                   "r16"                                   },
2057         { 17,                   "r17"                                   },
2058         { 18,                   "r18"                                   },
2059         { 19,                   "r19"                                   },
2060         { 20,                   "r20"                                   },
2061         { 21,                   "r21"                                   },
2062         { 22,                   "r22"                                   },
2063         { 23,                   "r23"                                   },
2064         { 24,                   "r24"                                   },
2065         { 25,                   "r25"                                   },
2066         { 26,                   "r26"                                   },
2067         { 27,                   "r27"                                   },
2068         { 28,                   "r28"                                   },
2069         { 29,                   "r29"                                   },
2070         { 30,                   "r30"                                   },
2071         { 31,                   "r31"                                   },
2072         { 32,                   "f0"                                    },
2073         { 33,                   "f1"                                    },
2074         { 34,                   "f2"                                    },
2075         { 35,                   "f3"                                    },
2076         { 36,                   "f4"                                    },
2077         { 37,                   "f5"                                    },
2078         { 38,                   "f6"                                    },
2079         { 39,                   "f7"                                    },
2080         { 40,                   "f8"                                    },
2081         { 41,                   "f9"                                    },
2082         { 42,                   "f10"                                   },
2083         { 43,                   "f11"                                   },
2084         { 44,                   "f12"                                   },
2085         { 45,                   "f13"                                   },
2086         { 46,                   "f14"                                   },
2087         { 47,                   "f15"                                   },
2088         { 48,                   "f16"                                   },
2089         { 49,                   "f17"                                   },
2090         { 50,                   "f18"                                   },
2091         { 51,                   "f19"                                   },
2092         { 52,                   "f20"                                   },
2093         { 53,                   "f21"                                   },
2094         { 54,                   "f22"                                   },
2095         { 55,                   "f23"                                   },
2096         { 56,                   "f24"                                   },
2097         { 57,                   "f25"                                   },
2098         { 58,                   "f26"                                   },
2099         { 59,                   "f27"                                   },
2100         { 60,                   "f28"                                   },
2101         { 61,                   "f29"                                   },
2102         { 62,                   "f30"                                   },
2103         { 63,                   "f31"                                   },
2104         { 64,                   "pc"                                    },
2105         { 65,                   "cause"                                 },
2106         { 66,                   "badvaddr"                              },
2107         { 67,                   "mmhi"                                  },
2108         { 68,                   "mmlo"                                  },
2109         { 69,                   "fpcsr"                                 },
2110         { 70,                   "fpeir"                                 },
2111 #   elif defined(TILE)
2112         { PTREGS_OFFSET_REG(0),  "r0"  },
2113         { PTREGS_OFFSET_REG(1),  "r1"  },
2114         { PTREGS_OFFSET_REG(2),  "r2"  },
2115         { PTREGS_OFFSET_REG(3),  "r3"  },
2116         { PTREGS_OFFSET_REG(4),  "r4"  },
2117         { PTREGS_OFFSET_REG(5),  "r5"  },
2118         { PTREGS_OFFSET_REG(6),  "r6"  },
2119         { PTREGS_OFFSET_REG(7),  "r7"  },
2120         { PTREGS_OFFSET_REG(8),  "r8"  },
2121         { PTREGS_OFFSET_REG(9),  "r9"  },
2122         { PTREGS_OFFSET_REG(10), "r10" },
2123         { PTREGS_OFFSET_REG(11), "r11" },
2124         { PTREGS_OFFSET_REG(12), "r12" },
2125         { PTREGS_OFFSET_REG(13), "r13" },
2126         { PTREGS_OFFSET_REG(14), "r14" },
2127         { PTREGS_OFFSET_REG(15), "r15" },
2128         { PTREGS_OFFSET_REG(16), "r16" },
2129         { PTREGS_OFFSET_REG(17), "r17" },
2130         { PTREGS_OFFSET_REG(18), "r18" },
2131         { PTREGS_OFFSET_REG(19), "r19" },
2132         { PTREGS_OFFSET_REG(20), "r20" },
2133         { PTREGS_OFFSET_REG(21), "r21" },
2134         { PTREGS_OFFSET_REG(22), "r22" },
2135         { PTREGS_OFFSET_REG(23), "r23" },
2136         { PTREGS_OFFSET_REG(24), "r24" },
2137         { PTREGS_OFFSET_REG(25), "r25" },
2138         { PTREGS_OFFSET_REG(26), "r26" },
2139         { PTREGS_OFFSET_REG(27), "r27" },
2140         { PTREGS_OFFSET_REG(28), "r28" },
2141         { PTREGS_OFFSET_REG(29), "r29" },
2142         { PTREGS_OFFSET_REG(30), "r30" },
2143         { PTREGS_OFFSET_REG(31), "r31" },
2144         { PTREGS_OFFSET_REG(32), "r32" },
2145         { PTREGS_OFFSET_REG(33), "r33" },
2146         { PTREGS_OFFSET_REG(34), "r34" },
2147         { PTREGS_OFFSET_REG(35), "r35" },
2148         { PTREGS_OFFSET_REG(36), "r36" },
2149         { PTREGS_OFFSET_REG(37), "r37" },
2150         { PTREGS_OFFSET_REG(38), "r38" },
2151         { PTREGS_OFFSET_REG(39), "r39" },
2152         { PTREGS_OFFSET_REG(40), "r40" },
2153         { PTREGS_OFFSET_REG(41), "r41" },
2154         { PTREGS_OFFSET_REG(42), "r42" },
2155         { PTREGS_OFFSET_REG(43), "r43" },
2156         { PTREGS_OFFSET_REG(44), "r44" },
2157         { PTREGS_OFFSET_REG(45), "r45" },
2158         { PTREGS_OFFSET_REG(46), "r46" },
2159         { PTREGS_OFFSET_REG(47), "r47" },
2160         { PTREGS_OFFSET_REG(48), "r48" },
2161         { PTREGS_OFFSET_REG(49), "r49" },
2162         { PTREGS_OFFSET_REG(50), "r50" },
2163         { PTREGS_OFFSET_REG(51), "r51" },
2164         { PTREGS_OFFSET_REG(52), "r52" },
2165         { PTREGS_OFFSET_TP, "tp" },
2166         { PTREGS_OFFSET_SP, "sp" },
2167         { PTREGS_OFFSET_LR, "lr" },
2168         { PTREGS_OFFSET_PC, "pc" },
2169         { PTREGS_OFFSET_EX1, "ex1" },
2170         { PTREGS_OFFSET_FAULTNUM, "faultnum" },
2171         { PTREGS_OFFSET_ORIG_R0, "orig_r0" },
2172         { PTREGS_OFFSET_FLAGS, "flags" },
2173 #   endif
2174 #   ifdef CRISV10
2175         { 4*PT_FRAMETYPE, "4*PT_FRAMETYPE" },
2176         { 4*PT_ORIG_R10, "4*PT_ORIG_R10" },
2177         { 4*PT_R13, "4*PT_R13" },
2178         { 4*PT_R12, "4*PT_R12" },
2179         { 4*PT_R11, "4*PT_R11" },
2180         { 4*PT_R10, "4*PT_R10" },
2181         { 4*PT_R9, "4*PT_R9" },
2182         { 4*PT_R8, "4*PT_R8" },
2183         { 4*PT_R7, "4*PT_R7" },
2184         { 4*PT_R6, "4*PT_R6" },
2185         { 4*PT_R5, "4*PT_R5" },
2186         { 4*PT_R4, "4*PT_R4" },
2187         { 4*PT_R3, "4*PT_R3" },
2188         { 4*PT_R2, "4*PT_R2" },
2189         { 4*PT_R1, "4*PT_R1" },
2190         { 4*PT_R0, "4*PT_R0" },
2191         { 4*PT_MOF, "4*PT_MOF" },
2192         { 4*PT_DCCR, "4*PT_DCCR" },
2193         { 4*PT_SRP, "4*PT_SRP" },
2194         { 4*PT_IRP, "4*PT_IRP" },
2195         { 4*PT_CSRINSTR, "4*PT_CSRINSTR" },
2196         { 4*PT_CSRADDR, "4*PT_CSRADDR" },
2197         { 4*PT_CSRDATA, "4*PT_CSRDATA" },
2198         { 4*PT_USP, "4*PT_USP" },
2199 #   endif
2200 #   ifdef CRISV32
2201         { 4*PT_ORIG_R10, "4*PT_ORIG_R10" },
2202         { 4*PT_R0, "4*PT_R0" },
2203         { 4*PT_R1, "4*PT_R1" },
2204         { 4*PT_R2, "4*PT_R2" },
2205         { 4*PT_R3, "4*PT_R3" },
2206         { 4*PT_R4, "4*PT_R4" },
2207         { 4*PT_R5, "4*PT_R5" },
2208         { 4*PT_R6, "4*PT_R6" },
2209         { 4*PT_R7, "4*PT_R7" },
2210         { 4*PT_R8, "4*PT_R8" },
2211         { 4*PT_R9, "4*PT_R9" },
2212         { 4*PT_R10, "4*PT_R10" },
2213         { 4*PT_R11, "4*PT_R11" },
2214         { 4*PT_R12, "4*PT_R12" },
2215         { 4*PT_R13, "4*PT_R13" },
2216         { 4*PT_ACR, "4*PT_ACR" },
2217         { 4*PT_SRS, "4*PT_SRS" },
2218         { 4*PT_MOF, "4*PT_MOF" },
2219         { 4*PT_SPC, "4*PT_SPC" },
2220         { 4*PT_CCS, "4*PT_CCS" },
2221         { 4*PT_SRP, "4*PT_SRP" },
2222         { 4*PT_ERP, "4*PT_ERP" },
2223         { 4*PT_EXS, "4*PT_EXS" },
2224         { 4*PT_EDA, "4*PT_EDA" },
2225         { 4*PT_USP, "4*PT_USP" },
2226         { 4*PT_PPC, "4*PT_PPC" },
2227         { 4*PT_BP_CTRL, "4*PT_BP_CTRL" },
2228         { 4*PT_BP+4, "4*PT_BP+4" },
2229         { 4*PT_BP+8, "4*PT_BP+8" },
2230         { 4*PT_BP+12, "4*PT_BP+12" },
2231         { 4*PT_BP+16, "4*PT_BP+16" },
2232         { 4*PT_BP+20, "4*PT_BP+20" },
2233         { 4*PT_BP+24, "4*PT_BP+24" },
2234         { 4*PT_BP+28, "4*PT_BP+28" },
2235         { 4*PT_BP+32, "4*PT_BP+32" },
2236         { 4*PT_BP+36, "4*PT_BP+36" },
2237         { 4*PT_BP+40, "4*PT_BP+40" },
2238         { 4*PT_BP+44, "4*PT_BP+44" },
2239         { 4*PT_BP+48, "4*PT_BP+48" },
2240         { 4*PT_BP+52, "4*PT_BP+52" },
2241         { 4*PT_BP+56, "4*PT_BP+56" },
2242 #   endif
2243 #   ifdef MICROBLAZE
2244         { PT_GPR(0),            "r0"                                    },
2245         { PT_GPR(1),            "r1"                                    },
2246         { PT_GPR(2),            "r2"                                    },
2247         { PT_GPR(3),            "r3"                                    },
2248         { PT_GPR(4),            "r4"                                    },
2249         { PT_GPR(5),            "r5"                                    },
2250         { PT_GPR(6),            "r6"                                    },
2251         { PT_GPR(7),            "r7"                                    },
2252         { PT_GPR(8),            "r8"                                    },
2253         { PT_GPR(9),            "r9"                                    },
2254         { PT_GPR(10),           "r10"                                   },
2255         { PT_GPR(11),           "r11"                                   },
2256         { PT_GPR(12),           "r12"                                   },
2257         { PT_GPR(13),           "r13"                                   },
2258         { PT_GPR(14),           "r14"                                   },
2259         { PT_GPR(15),           "r15"                                   },
2260         { PT_GPR(16),           "r16"                                   },
2261         { PT_GPR(17),           "r17"                                   },
2262         { PT_GPR(18),           "r18"                                   },
2263         { PT_GPR(19),           "r19"                                   },
2264         { PT_GPR(20),           "r20"                                   },
2265         { PT_GPR(21),           "r21"                                   },
2266         { PT_GPR(22),           "r22"                                   },
2267         { PT_GPR(23),           "r23"                                   },
2268         { PT_GPR(24),           "r24"                                   },
2269         { PT_GPR(25),           "r25"                                   },
2270         { PT_GPR(26),           "r26"                                   },
2271         { PT_GPR(27),           "r27"                                   },
2272         { PT_GPR(28),           "r28"                                   },
2273         { PT_GPR(29),           "r29"                                   },
2274         { PT_GPR(30),           "r30"                                   },
2275         { PT_GPR(31),           "r31"                                   },
2276         { PT_PC,                "rpc",                                  },
2277         { PT_MSR,               "rmsr",                                 },
2278         { PT_EAR,               "rear",                                 },
2279         { PT_ESR,               "resr",                                 },
2280         { PT_FSR,               "rfsr",                                 },
2281         { PT_KERNEL_MODE,       "kernel_mode",                          },
2282 #   endif
2283
2284 #   if !defined(SPARC) && !defined(HPPA) && !defined(POWERPC) \
2285                 && !defined(ALPHA) && !defined(IA64) \
2286                 && !defined(CRISV10) && !defined(CRISV32) && !defined(MICROBLAZE)
2287 #    if !defined(S390) && !defined(S390X) && !defined(MIPS) && !defined(SPARC64) && !defined(AVR32) && !defined(BFIN) && !defined(TILE)
2288         { uoff(u_fpvalid),      "offsetof(struct user, u_fpvalid)"      },
2289 #    endif
2290 #    if defined(I386) || defined(X86_64)
2291         { uoff(i387),           "offsetof(struct user, i387)"           },
2292 #    endif
2293 #    if defined(M68K)
2294         { uoff(m68kfp),         "offsetof(struct user, m68kfp)"         },
2295 #    endif
2296         { uoff(u_tsize),        "offsetof(struct user, u_tsize)"        },
2297         { uoff(u_dsize),        "offsetof(struct user, u_dsize)"        },
2298         { uoff(u_ssize),        "offsetof(struct user, u_ssize)"        },
2299 #    if !defined(SPARC64)
2300         { uoff(start_code),     "offsetof(struct user, start_code)"     },
2301 #    endif
2302 #    if defined(AVR32) || defined(SH64)
2303         { uoff(start_data),     "offsetof(struct user, start_data)"     },
2304 #    endif
2305 #    if !defined(SPARC64)
2306         { uoff(start_stack),    "offsetof(struct user, start_stack)"    },
2307 #    endif
2308         { uoff(signal),         "offsetof(struct user, signal)"         },
2309 #    if !defined(AVR32) && !defined(S390) && !defined(S390X) && !defined(MIPS) && !defined(SH) && !defined(SH64) && !defined(SPARC64) && !defined(TILE)
2310         { uoff(reserved),       "offsetof(struct user, reserved)"       },
2311 #    endif
2312 #    if !defined(SPARC64)
2313         { uoff(u_ar0),          "offsetof(struct user, u_ar0)"          },
2314 #    endif
2315 #    if !defined(ARM) && !defined(AVR32) && !defined(MIPS) && !defined(S390) && !defined(S390X) && !defined(SPARC64) && !defined(BFIN) && !defined(TILE)
2316         { uoff(u_fpstate),      "offsetof(struct user, u_fpstate)"      },
2317 #    endif
2318         { uoff(magic),          "offsetof(struct user, magic)"          },
2319         { uoff(u_comm),         "offsetof(struct user, u_comm)"         },
2320 #    if defined(I386) || defined(X86_64)
2321         { uoff(u_debugreg),     "offsetof(struct user, u_debugreg)"     },
2322 #    endif
2323 #   endif /* !defined(many arches) */
2324
2325 #  ifndef HPPA
2326         { sizeof(struct user),  "sizeof(struct user)"                   },
2327 #  endif
2328         { 0,                    NULL                                    },
2329 };
2330
2331 int
2332 sys_ptrace(struct tcb *tcp)
2333 {
2334         const struct xlat *x;
2335         long addr;
2336
2337         if (entering(tcp)) {
2338                 printxval(ptrace_cmds, tcp->u_arg[0],
2339                           "PTRACE_???"
2340                         );
2341                 tprintf(", %lu, ", tcp->u_arg[1]);
2342                 addr = tcp->u_arg[2];
2343                 if (tcp->u_arg[0] == PTRACE_PEEKUSER
2344                         || tcp->u_arg[0] == PTRACE_POKEUSER) {
2345                         for (x = struct_user_offsets; x->str; x++) {
2346                                 if (x->val >= addr)
2347                                         break;
2348                         }
2349                         if (!x->str)
2350                                 tprintf("%#lx, ", addr);
2351                         else if (x->val > addr && x != struct_user_offsets) {
2352                                 x--;
2353                                 tprintf("%s + %ld, ", x->str, addr - x->val);
2354                         }
2355                         else
2356                                 tprintf("%s, ", x->str);
2357                 }
2358                 else
2359                         tprintf("%#lx, ", tcp->u_arg[2]);
2360                 switch (tcp->u_arg[0]) {
2361 #  ifndef IA64
2362                 case PTRACE_PEEKDATA:
2363                 case PTRACE_PEEKTEXT:
2364                 case PTRACE_PEEKUSER:
2365                         break;
2366 #  endif
2367                 case PTRACE_CONT:
2368                 case PTRACE_SINGLESTEP:
2369                 case PTRACE_SYSCALL:
2370                 case PTRACE_DETACH:
2371                         printsignal(tcp->u_arg[3]);
2372                         break;
2373 #  ifdef PTRACE_SETOPTIONS
2374                 case PTRACE_SETOPTIONS:
2375                         printflags(ptrace_setoptions_flags, tcp->u_arg[3], "PTRACE_O_???");
2376                         break;
2377 #  endif
2378 #  ifdef PTRACE_SETSIGINFO
2379                 case PTRACE_SETSIGINFO: {
2380                         siginfo_t si;
2381                         if (!tcp->u_arg[3])
2382                                 tprints("NULL");
2383                         else if (syserror(tcp))
2384                                 tprintf("%#lx", tcp->u_arg[3]);
2385                         else if (umove(tcp, tcp->u_arg[3], &si) < 0)
2386                                 tprints("{???}");
2387                         else
2388                                 printsiginfo(&si, verbose(tcp));
2389                         break;
2390                 }
2391 #  endif
2392 #  ifdef PTRACE_GETSIGINFO
2393                 case PTRACE_GETSIGINFO:
2394                         /* Don't print anything, do it at syscall return. */
2395                         break;
2396 #  endif
2397                 default:
2398                         tprintf("%#lx", tcp->u_arg[3]);
2399                         break;
2400                 }
2401         } else {
2402                 switch (tcp->u_arg[0]) {
2403                 case PTRACE_PEEKDATA:
2404                 case PTRACE_PEEKTEXT:
2405                 case PTRACE_PEEKUSER:
2406 #  ifdef IA64
2407                         return RVAL_HEX;
2408 #  else
2409                         printnum(tcp, tcp->u_arg[3], "%#lx");
2410                         break;
2411 #  endif
2412 #  ifdef PTRACE_GETSIGINFO
2413                 case PTRACE_GETSIGINFO: {
2414                         siginfo_t si;
2415                         if (!tcp->u_arg[3])
2416                                 tprints("NULL");
2417                         else if (syserror(tcp))
2418                                 tprintf("%#lx", tcp->u_arg[3]);
2419                         else if (umove(tcp, tcp->u_arg[3], &si) < 0)
2420                                 tprints("{???}");
2421                         else
2422                                 printsiginfo(&si, verbose(tcp));
2423                         break;
2424                 }
2425 #  endif
2426                 }
2427         }
2428         return 0;
2429 }
2430
2431 # ifndef FUTEX_CMP_REQUEUE
2432 #  define FUTEX_CMP_REQUEUE 4
2433 # endif
2434 # ifndef FUTEX_WAKE_OP
2435 #  define FUTEX_WAKE_OP 5
2436 # endif
2437 # ifndef FUTEX_LOCK_PI
2438 #  define FUTEX_LOCK_PI 6
2439 #  define FUTEX_UNLOCK_PI 7
2440 #  define FUTEX_TRYLOCK_PI 8
2441 # endif
2442 # ifndef FUTEX_WAIT_BITSET
2443 #  define FUTEX_WAIT_BITSET 9
2444 # endif
2445 # ifndef FUTEX_WAKE_BITSET
2446 #  define FUTEX_WAKE_BITSET 10
2447 # endif
2448 # ifndef FUTEX_WAIT_REQUEUE_PI
2449 #  define FUTEX_WAIT_REQUEUE_PI 11
2450 # endif
2451 # ifndef FUTEX_CMP_REQUEUE_PI
2452 #  define FUTEX_CMP_REQUEUE_PI 12
2453 # endif
2454 # ifndef FUTEX_PRIVATE_FLAG
2455 #  define FUTEX_PRIVATE_FLAG 128
2456 # endif
2457 # ifndef FUTEX_CLOCK_REALTIME
2458 #  define FUTEX_CLOCK_REALTIME 256
2459 # endif
2460 static const struct xlat futexops[] = {
2461         { FUTEX_WAIT,                                   "FUTEX_WAIT" },
2462         { FUTEX_WAKE,                                   "FUTEX_WAKE" },
2463         { FUTEX_FD,                                     "FUTEX_FD" },
2464         { FUTEX_REQUEUE,                                "FUTEX_REQUEUE" },
2465         { FUTEX_CMP_REQUEUE,                            "FUTEX_CMP_REQUEUE" },
2466         { FUTEX_WAKE_OP,                                "FUTEX_WAKE_OP" },
2467         { FUTEX_LOCK_PI,                                "FUTEX_LOCK_PI" },
2468         { FUTEX_UNLOCK_PI,                              "FUTEX_UNLOCK_PI" },
2469         { FUTEX_TRYLOCK_PI,                             "FUTEX_TRYLOCK_PI" },
2470         { FUTEX_WAIT_BITSET,                            "FUTEX_WAIT_BITSET" },
2471         { FUTEX_WAKE_BITSET,                            "FUTEX_WAKE_BITSET" },
2472         { FUTEX_WAIT_REQUEUE_PI,                        "FUTEX_WAIT_REQUEUE_PI" },
2473         { FUTEX_CMP_REQUEUE_PI,                         "FUTEX_CMP_REQUEUE_PI" },
2474         { FUTEX_WAIT|FUTEX_PRIVATE_FLAG,                "FUTEX_WAIT_PRIVATE" },
2475         { FUTEX_WAKE|FUTEX_PRIVATE_FLAG,                "FUTEX_WAKE_PRIVATE" },
2476         { FUTEX_FD|FUTEX_PRIVATE_FLAG,                  "FUTEX_FD_PRIVATE" },
2477         { FUTEX_REQUEUE|FUTEX_PRIVATE_FLAG,             "FUTEX_REQUEUE_PRIVATE" },
2478         { FUTEX_CMP_REQUEUE|FUTEX_PRIVATE_FLAG,         "FUTEX_CMP_REQUEUE_PRIVATE" },
2479         { FUTEX_WAKE_OP|FUTEX_PRIVATE_FLAG,             "FUTEX_WAKE_OP_PRIVATE" },
2480         { FUTEX_LOCK_PI|FUTEX_PRIVATE_FLAG,             "FUTEX_LOCK_PI_PRIVATE" },
2481         { FUTEX_UNLOCK_PI|FUTEX_PRIVATE_FLAG,           "FUTEX_UNLOCK_PI_PRIVATE" },
2482         { FUTEX_TRYLOCK_PI|FUTEX_PRIVATE_FLAG,          "FUTEX_TRYLOCK_PI_PRIVATE" },
2483         { FUTEX_WAIT_BITSET|FUTEX_PRIVATE_FLAG,         "FUTEX_WAIT_BITSET_PRIVATE" },
2484         { FUTEX_WAKE_BITSET|FUTEX_PRIVATE_FLAG,         "FUTEX_WAKE_BITSET_PRIVATE" },
2485         { FUTEX_WAIT_REQUEUE_PI|FUTEX_PRIVATE_FLAG,     "FUTEX_WAIT_REQUEUE_PI_PRIVATE" },
2486         { FUTEX_CMP_REQUEUE_PI|FUTEX_PRIVATE_FLAG,      "FUTEX_CMP_REQUEUE_PI_PRIVATE" },
2487         { FUTEX_WAIT_BITSET|FUTEX_CLOCK_REALTIME,       "FUTEX_WAIT_BITSET|FUTEX_CLOCK_REALTIME" },
2488         { FUTEX_WAIT_BITSET|FUTEX_PRIVATE_FLAG|FUTEX_CLOCK_REALTIME,    "FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME" },
2489         { FUTEX_WAIT_REQUEUE_PI|FUTEX_CLOCK_REALTIME,   "FUTEX_WAIT_REQUEUE_PI|FUTEX_CLOCK_REALTIME" },
2490         { FUTEX_WAIT_REQUEUE_PI|FUTEX_PRIVATE_FLAG|FUTEX_CLOCK_REALTIME,        "FUTEX_WAIT_REQUEUE_PI_PRIVATE|FUTEX_CLOCK_REALTIME" },
2491         { 0,                                            NULL }
2492 };
2493 # ifndef FUTEX_OP_SET
2494 #  define FUTEX_OP_SET          0
2495 #  define FUTEX_OP_ADD          1
2496 #  define FUTEX_OP_OR           2
2497 #  define FUTEX_OP_ANDN         3
2498 #  define FUTEX_OP_XOR          4
2499 #  define FUTEX_OP_CMP_EQ       0
2500 #  define FUTEX_OP_CMP_NE       1
2501 #  define FUTEX_OP_CMP_LT       2
2502 #  define FUTEX_OP_CMP_LE       3
2503 #  define FUTEX_OP_CMP_GT       4
2504 #  define FUTEX_OP_CMP_GE       5
2505 # endif
2506 static const struct xlat futexwakeops[] = {
2507         { FUTEX_OP_SET,         "FUTEX_OP_SET" },
2508         { FUTEX_OP_ADD,         "FUTEX_OP_ADD" },
2509         { FUTEX_OP_OR,          "FUTEX_OP_OR" },
2510         { FUTEX_OP_ANDN,        "FUTEX_OP_ANDN" },
2511         { FUTEX_OP_XOR,         "FUTEX_OP_XOR" },
2512         { 0,                    NULL }
2513 };
2514 static const struct xlat futexwakecmps[] = {
2515         { FUTEX_OP_CMP_EQ,      "FUTEX_OP_CMP_EQ" },
2516         { FUTEX_OP_CMP_NE,      "FUTEX_OP_CMP_NE" },
2517         { FUTEX_OP_CMP_LT,      "FUTEX_OP_CMP_LT" },
2518         { FUTEX_OP_CMP_LE,      "FUTEX_OP_CMP_LE" },
2519         { FUTEX_OP_CMP_GT,      "FUTEX_OP_CMP_GT" },
2520         { FUTEX_OP_CMP_GE,      "FUTEX_OP_CMP_GE" },
2521         { 0,                    NULL }
2522 };
2523
2524 int
2525 sys_futex(struct tcb *tcp)
2526 {
2527         if (entering(tcp)) {
2528                 long int cmd = tcp->u_arg[1] & 127;
2529                 tprintf("%p, ", (void *) tcp->u_arg[0]);
2530                 printxval(futexops, tcp->u_arg[1], "FUTEX_???");
2531                 tprintf(", %ld", tcp->u_arg[2]);
2532                 if (cmd == FUTEX_WAKE_BITSET)
2533                         tprintf(", %lx", tcp->u_arg[5]);
2534                 else if (cmd == FUTEX_WAIT) {
2535                         tprints(", ");
2536                         printtv(tcp, tcp->u_arg[3]);
2537                 } else if (cmd == FUTEX_WAIT_BITSET) {
2538                         tprints(", ");
2539                         printtv(tcp, tcp->u_arg[3]);
2540                         tprintf(", %lx", tcp->u_arg[5]);
2541                 } else if (cmd == FUTEX_REQUEUE)
2542                         tprintf(", %ld, %p", tcp->u_arg[3], (void *) tcp->u_arg[4]);
2543                 else if (cmd == FUTEX_CMP_REQUEUE || cmd == FUTEX_CMP_REQUEUE_PI)
2544                         tprintf(", %ld, %p, %ld", tcp->u_arg[3], (void *) tcp->u_arg[4], tcp->u_arg[5]);
2545                 else if (cmd == FUTEX_WAKE_OP) {
2546                         tprintf(", %ld, %p, {", tcp->u_arg[3], (void *) tcp->u_arg[4]);
2547                         if ((tcp->u_arg[5] >> 28) & 8)
2548                                 tprints("FUTEX_OP_OPARG_SHIFT|");
2549                         printxval(futexwakeops, (tcp->u_arg[5] >> 28) & 0x7, "FUTEX_OP_???");
2550                         tprintf(", %ld, ", (tcp->u_arg[5] >> 12) & 0xfff);
2551                         if ((tcp->u_arg[5] >> 24) & 8)
2552                                 tprints("FUTEX_OP_OPARG_SHIFT|");
2553                         printxval(futexwakecmps, (tcp->u_arg[5] >> 24) & 0x7, "FUTEX_OP_CMP_???");
2554                         tprintf(", %ld}", tcp->u_arg[5] & 0xfff);
2555                 } else if (cmd == FUTEX_WAIT_REQUEUE_PI) {
2556                         tprints(", ");
2557                         printtv(tcp, tcp->u_arg[3]);
2558                         tprintf(", %p", (void *) tcp->u_arg[4]);
2559                 }
2560         }
2561         return 0;
2562 }
2563
2564 static void
2565 print_affinitylist(struct tcb *tcp, long list, unsigned int len)
2566 {
2567         int first = 1;
2568         unsigned long w, min_len;
2569
2570         if (abbrev(tcp) && len / sizeof(w) > max_strlen)
2571                 min_len = len - max_strlen * sizeof(w);
2572         else
2573                 min_len = 0;
2574         for (; len >= sizeof(w) && len > min_len;
2575              len -= sizeof(w), list += sizeof(w)) {
2576                 if (umove(tcp, list, &w) < 0)
2577                         break;
2578                 if (first)
2579                         tprints("{");
2580                 else
2581                         tprints(", ");
2582                 first = 0;
2583                 tprintf("%lx", w);
2584         }
2585         if (len) {
2586                 if (first)
2587                         tprintf("%#lx", list);
2588                 else
2589                         tprintf(", %s}", (len >= sizeof(w) && len > min_len ?
2590                                 "???" : "..."));
2591         } else {
2592                 tprints(first ? "{}" : "}");
2593         }
2594 }
2595
2596 int
2597 sys_sched_setaffinity(struct tcb *tcp)
2598 {
2599         if (entering(tcp)) {
2600                 tprintf("%ld, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
2601                 print_affinitylist(tcp, tcp->u_arg[2], tcp->u_arg[1]);
2602         }
2603         return 0;
2604 }
2605
2606 int
2607 sys_sched_getaffinity(struct tcb *tcp)
2608 {
2609         if (entering(tcp)) {
2610                 tprintf("%ld, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
2611         } else {
2612                 if (tcp->u_rval == -1)
2613                         tprintf("%#lx", tcp->u_arg[2]);
2614                 else
2615                         print_affinitylist(tcp, tcp->u_arg[2], tcp->u_rval);
2616         }
2617         return 0;
2618 }
2619
2620 static const struct xlat schedulers[] = {
2621         { SCHED_OTHER,  "SCHED_OTHER" },
2622         { SCHED_RR,     "SCHED_RR" },
2623         { SCHED_FIFO,   "SCHED_FIFO" },
2624         { 0,            NULL }
2625 };
2626
2627 int
2628 sys_sched_getscheduler(struct tcb *tcp)
2629 {
2630         if (entering(tcp)) {
2631                 tprintf("%d", (int) tcp->u_arg[0]);
2632         } else if (!syserror(tcp)) {
2633                 tcp->auxstr = xlookup(schedulers, tcp->u_rval);
2634                 if (tcp->auxstr != NULL)
2635                         return RVAL_STR;
2636         }
2637         return 0;
2638 }
2639
2640 int
2641 sys_sched_setscheduler(struct tcb *tcp)
2642 {
2643         if (entering(tcp)) {
2644                 struct sched_param p;
2645                 tprintf("%d, ", (int) tcp->u_arg[0]);
2646                 printxval(schedulers, tcp->u_arg[1], "SCHED_???");
2647                 if (umove(tcp, tcp->u_arg[2], &p) < 0)
2648                         tprintf(", %#lx", tcp->u_arg[2]);
2649                 else
2650                         tprintf(", { %d }", p.__sched_priority);
2651         }
2652         return 0;
2653 }
2654
2655 int
2656 sys_sched_getparam(struct tcb *tcp)
2657 {
2658         if (entering(tcp)) {
2659                 tprintf("%d, ", (int) tcp->u_arg[0]);
2660         } else {
2661                 struct sched_param p;
2662                 if (umove(tcp, tcp->u_arg[1], &p) < 0)
2663                         tprintf("%#lx", tcp->u_arg[1]);
2664                 else
2665                         tprintf("{ %d }", p.__sched_priority);
2666         }
2667         return 0;
2668 }
2669
2670 int
2671 sys_sched_setparam(struct tcb *tcp)
2672 {
2673         if (entering(tcp)) {
2674                 struct sched_param p;
2675                 if (umove(tcp, tcp->u_arg[1], &p) < 0)
2676                         tprintf("%d, %#lx", (int) tcp->u_arg[0], tcp->u_arg[1]);
2677                 else
2678                         tprintf("%d, { %d }", (int) tcp->u_arg[0], p.__sched_priority);
2679         }
2680         return 0;
2681 }
2682
2683 int
2684 sys_sched_get_priority_min(struct tcb *tcp)
2685 {
2686         if (entering(tcp)) {
2687                 printxval(schedulers, tcp->u_arg[0], "SCHED_???");
2688         }
2689         return 0;
2690 }
2691
2692 # ifdef X86_64
2693 # include <asm/prctl.h>
2694
2695 static const struct xlat archvals[] = {
2696         { ARCH_SET_GS,          "ARCH_SET_GS"           },
2697         { ARCH_SET_FS,          "ARCH_SET_FS"           },
2698         { ARCH_GET_FS,          "ARCH_GET_FS"           },
2699         { ARCH_GET_GS,          "ARCH_GET_GS"           },
2700         { 0,                    NULL                    },
2701 };
2702
2703 int
2704 sys_arch_prctl(struct tcb *tcp)
2705 {
2706         if (entering(tcp)) {
2707                 printxval(archvals, tcp->u_arg[0], "ARCH_???");
2708                 if (tcp->u_arg[0] == ARCH_SET_GS
2709                  || tcp->u_arg[0] == ARCH_SET_FS
2710                 ) {
2711                         tprintf(", %#lx", tcp->u_arg[1]);
2712                 }
2713         } else {
2714                 if (tcp->u_arg[0] == ARCH_GET_GS
2715                  || tcp->u_arg[0] == ARCH_GET_FS
2716                 ) {
2717                         long int v;
2718                         if (!syserror(tcp) && umove(tcp, tcp->u_arg[1], &v) != -1)
2719                                 tprintf(", [%#lx]", v);
2720                         else
2721                                 tprintf(", %#lx", tcp->u_arg[1]);
2722                 }
2723         }
2724         return 0;
2725 }
2726 # endif /* X86_64 */
2727
2728 int
2729 sys_getcpu(struct tcb *tcp)
2730 {
2731         if (exiting(tcp)) {
2732                 unsigned u;
2733                 if (tcp->u_arg[0] == 0)
2734                         tprints("NULL, ");
2735                 else if (umove(tcp, tcp->u_arg[0], &u) < 0)
2736                         tprintf("%#lx, ", tcp->u_arg[0]);
2737                 else
2738                         tprintf("[%u], ", u);
2739                 if (tcp->u_arg[1] == 0)
2740                         tprints("NULL, ");
2741                 else if (umove(tcp, tcp->u_arg[1], &u) < 0)
2742                         tprintf("%#lx, ", tcp->u_arg[1]);
2743                 else
2744                         tprintf("[%u], ", u);
2745                 tprintf("%#lx", tcp->u_arg[2]);
2746         }
2747         return 0;
2748 }
2749
2750 int
2751 sys_process_vm_readv(struct tcb *tcp)
2752 {
2753         if (entering(tcp)) {
2754                 /* arg 1: pid */
2755                 tprintf("%ld, ", tcp->u_arg[0]);
2756         } else {
2757                 /* arg 2: local iov */
2758                 if (syserror(tcp)) {
2759                         tprintf("%#lx", tcp->u_arg[1]);
2760                 } else {
2761                         tprint_iov(tcp, tcp->u_arg[2], tcp->u_arg[1], 1);
2762                 }
2763                 /* arg 3: local iovcnt */
2764                 tprintf(", %lu, ", tcp->u_arg[2]);
2765                 /* arg 4: remote iov */
2766                 if (syserror(tcp)) {
2767                         tprintf("%#lx", tcp->u_arg[3]);
2768                 } else {
2769                         tprint_iov(tcp, tcp->u_arg[4], tcp->u_arg[3], 0);
2770                 }
2771                 /* arg 5: remote iovcnt */
2772                 /* arg 6: flags */
2773                 tprintf(", %lu, %lu", tcp->u_arg[4], tcp->u_arg[5]);
2774         }
2775         return 0;
2776 }