coregrind/m_syswrap/syswrap-mips64-linux.c

   1
   2 /*--------------------------------------------------------------------*/
   3 /*--- Platform-specific syscalls stuff.    syswrap-mips64-linux.c ----*/
   4 /*--------------------------------------------------------------------*/
   5
   6 /*
   7    This file is part of Valgrind, a dynamic binary instrumentation
   8    framework.
   9
  10    Copyright (C) 2010-2017 RT-RK
  11       mips-valgrind@rt-rk.com
  12
  13    This program is free software; you can redistribute it and/or
  14    modify it under the terms of the GNU General Public License as
  15    published by the Free Software Foundation; either version 2 of the
  16    License, or (at your option) any later version.
  17
  18    This program is distributed in the hope that it will be useful, but
  19    WITHOUT ANY WARRANTY; without even the implied warranty of
  20    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  21    General Public License for more details.
  22
  23    You should have received a copy of the GNU General Public License
  24    along with this program; if not, write to the Free Software
  25    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  26    02111-1307, USA.
  27
  28    The GNU General Public License is contained in the file COPYING.
  29 */
  30
  31 #if defined(VGP_mips64_linux)
  32 #include "pub_core_basics.h"
  33 #include "pub_core_vki.h"
  34 #include "pub_core_vkiscnums.h"
  35 #include "pub_core_threadstate.h"
  36 #include "pub_core_aspacemgr.h"
  37 #include "pub_core_debuglog.h"
  38 #include "pub_core_libcbase.h"
  39 #include "pub_core_libcassert.h"
  40 #include "pub_core_libcprint.h"
  41 #include "pub_core_libcproc.h"
  42 #include "pub_core_libcsignal.h"
  43 #include "pub_core_options.h"
  44 #include "pub_core_scheduler.h"
  45 #include "pub_core_sigframe.h"     /* For VG_(sigframe_destroy)() */
  46 #include "pub_core_signals.h"
  47 #include "pub_core_syscall.h"
  48 #include "pub_core_syswrap.h"
  49 #include "pub_core_tooliface.h"
  50 #include "pub_core_transtab.h"     /* VG_(discard_translations) */
  51 #include "priv_types_n_macros.h"
  52 #include "priv_syswrap-generic.h"  /* for decls of generic wrappers */
  53 #include "priv_syswrap-linux.h"    /* for decls of linux-ish wrappers */
  54 #include "priv_syswrap-main.h"
  55
  56 #include "pub_core_debuginfo.h"    /* VG_(di_notify_*) */
  57 #include "pub_core_xarray.h"
  58 #include "pub_core_clientstate.h"  /* VG_(brk_base), VG_(brk_limit) */
  59 #include "pub_core_errormgr.h"
  60 #include "pub_core_gdbserver.h"    /* VG_(gdbserver) */
  61 #include "pub_core_libcfile.h"
  62 #include "pub_core_machine.h"      /* VG_(get_SP) */
  63 #include "pub_core_mallocfree.h"
  64 #include "pub_core_stacktrace.h"   /* For VG_(get_and_pp_StackTrace)() */
  65 #include "pub_core_ume.h"
  66
  67 #include "config.h"
  68
  69 #include <errno.h>
  70
  71 /* ---------------------------------------------------------------------
  72                              clone() handling
  73    ------------------------------------------------------------------ */
  74
  75 /* Call f(arg1), but first switch stacks, using 'stack' as the new stack, and
  76    use 'retaddr' as f's return-to address. Also, clear all the integer registers
  77    before entering f. */
  78 __attribute__ ((noreturn))
  79 void ML_(call_on_new_stack_0_1) ( Addr stack,             /* $4 - $a0 */
  80                                   Addr retaddr,           /* $5 - $a1 */
  81                                   void (*f_desc) (Word),  /* $6 - $a2 */
  82                                   Word arg1 );            /* $7 - $a3 */
  83 asm (
  84 ".text\n"
  85 ".globl vgModuleLocal_call_on_new_stack_0_1\n"
  86 "vgModuleLocal_call_on_new_stack_0_1:\n"
  87 "   move $29, $4\n"   /* set stack */
  88 "   move $4,  $7\n"   /* arg1 to $4 */
  89 "   move $25, $6\n"
  90 "   move $31, $5\n"   /* retaddr to $ra */
  91 "   li   $2, 0\n\t"   /* zero all GP regs */
  92 "   li   $3, 0\n\t"
  93 "   li   $5, 0\n\t"
  94 "   li   $6, 0\n\t"
  95 "   li   $7, 0\n\t"
  96 "   li   $12, 0\n\t"
  97 "   li   $13, 0\n\t"
  98 "   li   $14, 0\n\t"
  99 "   li   $15, 0\n\t"
 100 "   li   $16, 0\n\t"
 101 "   li   $17, 0\n\t"
 102 "   li   $18, 0\n\t"
 103 "   li   $19, 0\n\t"
 104 "   li   $20, 0\n\t"
 105 "   li   $21, 0\n\t"
 106 "   li   $22, 0\n\t"
 107 "   li   $23, 0\n\t"
 108 "   li   $24, 0\n\t"
 109 "   jr $25\n"         /* jump to f */
 110 "   break 0x7\n"      /* should never get here */
 111 ".previous\n"
 112 );
 113
 114 /* Perform a clone system call.  clone is strange because it has fork()-like
 115    return-twice semantics, so it needs special handling here.
 116
 117    Upon entry, we have:
 118
 119       word (fn)(void*)    in a0 = 4
 120       void* child_stack   in a1 = 5
 121       word flags          in a2 = 6
 122       void* arg           in a3 = 7
 123       pid_t* parent_tid   in a4 = 8
 124       void* tls           in a5 = 9
 125       pid_t* child_tid    in a6 = 10
 126
 127    System call requires:
 128
 129       int    $__NR_clone  in v0
 130       int    flags        in a0 = 4
 131       void*  child_stack  in a1 = 5
 132       pid_t* parent_tid   in a2 = 6
 133       void*  tls_ptr      in a3 = 7
 134       pid_t* child_tid    in a4 = 8 */
 135
 136 #define __NR_CLONE        __NR_clone
 137 #define __NR_EXIT         __NR_exit
 138
 139 // See priv_syswrap-linux.h for arg profile.
 140 asm(
 141 ".text\n"
 142 ".set noreorder\n"
 143 ".set nomacro\n"
 144 ".globl do_syscall_clone_mips64_linux\n"
 145 "do_syscall_clone_mips64_linux:\n"
 146 "   daddiu $29, $29, -32\n"
 147 "   sd $31, 0($29)\n"
 148 "   sd $30, 8($29)\n"
 149 "   sd $28, 16($29)\n"
 150
 151 "   daddiu  $5, $5, -32\n"
 152 "   sd $4, 0($5)\n"   /* fn */
 153 "   sd $7, 8($5)\n"   /* arg */
 154 "   sd $6, 16($5)\n"  /* flags */
 155
 156 /* 1. arg for syscalls */
 157 "   move $4, $6\n"   /* flags */
 158 "   move $6, $8\n"   /* parent */
 159 "   move $7, $a5\n"  /* tls */
 160 "   move $8, $a6\n"  /* child */
 161
 162 /* 2. do a syscall to clone */
 163 "   li  $2, 5055\n"  /* syscall num for clone */
 164 "   syscall\n"
 165
 166 /* 3. See if we are a child, call fn and after that exit */
 167 "   bnez $7, p_or_error\n"
 168 "   nop\n"
 169
 170 "   bnez $2, p_or_error\n"
 171 "   nop\n"
 172
 173 "   ld $25,0($29)\n"
 174 "   jalr $25\n"
 175 "   ld $4,8($29)\n"
 176
 177 "   move $4, $2\n\t"  /* retval from fn is in $v0 */
 178 "   li $2, 5058\n\t"  /* NR_exit */
 179 "   syscall\n\t"
 180 "   nop\n\t"
 181 /* 4. If we are parent or error, just return to caller */
 182 "   p_or_error:\n"
 183 "   ld $31, 0($29)\n"
 184 "   ld $30, 8($29)\n"
 185 "   ld $28, 16($29)\n"
 186 "   jr $31\n"
 187 "   daddiu $29,$29, 32\n"
 188 ".previous\n"
 189 );
 190
 191 #undef __NR_CLONE
 192 #undef __NR_EXIT
 193
 194 /* forward declarations */
 195 static SysRes sys_set_tls ( ThreadId tid, Addr tlsptr);
 196
 197 /* ---------------------------------------------------------------------
 198                           More thread stuff
 199    ------------------------------------------------------------------ */
 200 void VG_(cleanup_thread) ( ThreadArchState * arch ) { };
 201
 202 SysRes sys_set_tls ( ThreadId tid, Addr tlsptr )
 203 {
 204    VG_(threads)[tid].arch.vex.guest_ULR = tlsptr;
 205    return VG_(mk_SysRes_Success)( 0 );
 206 }
 207
 208 /* ---------------------------------------------------------------------
 209            PRE/POST wrappers for mips/Linux-specific syscalls
 210    ------------------------------------------------------------------ */
 211
 212 #define PRE(name)       DEFN_PRE_TEMPLATE(mips_linux, name)
 213 #define POST(name)      DEFN_POST_TEMPLATE(mips_linux, name)
 214
 215 /* Add prototypes for the wrappers declared here, so that gcc doesn't harass us
 216    for not having prototypes. Really this is a kludge -- the right thing to do
 217    is to make these wrappers 'static' since they aren't visible outside this
 218    file, but that requires even more macro magic. */
 219
 220 DECL_TEMPLATE (mips_linux, sys_set_thread_area);
 221 DECL_TEMPLATE (mips_linux, sys_tee);
 222 DECL_TEMPLATE (mips_linux, sys_splice);
 223 DECL_TEMPLATE (mips_linux, sys_vmsplice);
 224 DECL_TEMPLATE (mips_linux, sys_ustat);
 225 DECL_TEMPLATE (mips_linux, sys_sysfs);
 226 DECL_TEMPLATE (mips_linux, sys_swapon);
 227 DECL_TEMPLATE (mips_linux, sys_swapoff);
 228 DECL_TEMPLATE (mips_linux, sys_setdomainname);
 229 DECL_TEMPLATE (mips_linux, sys_sethostname);
 230 DECL_TEMPLATE (mips_linux, sys_reboot);
 231 DECL_TEMPLATE (mips_linux, sys_cacheflush);
 232 DECL_TEMPLATE (mips_linux, sys_sched_rr_get_interval);
 233 DECL_TEMPLATE (mips_linux, sys_unshare);
 234 DECL_TEMPLATE (mips_linux, sys_prctl);
 235 DECL_TEMPLATE (mips_linux, sys_ptrace);
 236 DECL_TEMPLATE (mips_linux, sys_mmap);
 237 DECL_TEMPLATE (mips_linux, sys_rt_sigreturn);
 238 DECL_TEMPLATE (mips_linux, sys_pipe);
 239 DECL_TEMPLATE (mips_linux, sys_fadvise64);
 240
 241 PRE(sys_tee)
 242 {
 243    PRINT("sys_tee ( %ld, %ld, %lu, %#lx )", SARG1, SARG2, ARG3, ARG4);
 244    PRE_REG_READ4(long, "sys_tee", int, fdin, int, fdout, vki_size_t, len,
 245                  int, flags);
 246 }
 247
 248 PRE(sys_splice)
 249 {
 250    PRINT("sys_splice ( %ld, %#lx, %ld, %#lx, %lu, %#lx )",
 251          SARG1, ARG2, SARG3, ARG4, ARG5, ARG6);
 252
 253    PRE_REG_READ6(long, "sys_splice", int, fdin, vki_loff_t, sizein, int,
 254                  fdout, vki_loff_t, sizeout, vki_size_t, len, int, flags);
 255 }
 256
 257 PRE(sys_vmsplice)
 258 {
 259    PRINT("sys_vmsplice ( %ld, %#lx, %lu, %ld )", SARG1, ARG2, ARG3, SARG4);
 260    PRE_REG_READ4(long, "sys_vmsplice", int, fdin, struct vki_iovec *, v,
 261                  vki_size_t, len, int, flags);
 262 }
 263
 264 PRE(sys_unshare)
 265 {
 266    PRINT("sys_unshare ( %lu )", ARG1);
 267    PRE_REG_READ1(long, "sys_unshare", unsigned long, flags);
 268 }
 269
 270 PRE(sys_sched_rr_get_interval)
 271 {
 272    PRINT("sys_sched_rr_get_interval ( %ld, %#lx)", SARG1, ARG2);
 273    PRE_REG_READ2(long, "sched_rr_get_interval", vki_pid_t, pid,
 274                  struct timespec *, timer);
 275    *flags |= SfMayBlock;
 276 }
 277
 278 PRE(sys_ustat)
 279 {
 280    PRINT("sys_ustat ( %#lx, %#lx)", ARG1, ARG2);
 281    PRE_REG_READ2(long, "ustat", int, flags, const void *, path);
 282 }
 283
 284 PRE(sys_swapon)
 285 {
 286    PRINT("sys_swapon ( %#lx, %#lx )", ARG1, ARG2);
 287    PRE_REG_READ2(long, "swapon", const void *, path, int, flags);
 288 }
 289
 290 PRE(sys_swapoff)
 291 {
 292    PRINT("sys_swapoff ( %#lx )", ARG1);
 293    PRE_REG_READ1(long, "swapoff", const void *, path);
 294 }
 295
 296 PRE(sys_sysfs)
 297 {
 298    PRINT("sys_sysfs ( %ld, %#lx, %#lx )", SARG1, ARG2, ARG3);
 299    PRE_REG_READ3(long, "sysfs", int, flags, int, desc, const void *, path);
 300 }
 301
 302 /* Very much MIPS specific */
 303 PRE(sys_cacheflush)
 304 {
 305    PRINT("cacheflush (%lx, %lx, %lx)", ARG1, ARG2, ARG3);
 306    PRE_REG_READ3(long, "cacheflush", unsigned long, addr,
 307                  unsigned long, nbytes, unsigned int, cache);
 308    VG_ (discard_translations) ((Addr)ARG1, (ULong) ARG2,
 309                                "PRE(sys_cacheflush)");
 310    SET_STATUS_Success(0);
 311 }
 312
 313 PRE(sys_reboot)
 314 {
 315    PRINT("sys_reboot ( %ld, %ld, %lu, %#lx )", SARG1, ARG2, ARG3, ARG4);
 316    // An approximation. ARG4 is only read conditionally by the kernel
 317    PRE_REG_READ4(int, "reboot",
 318                  int, magic1, int, magic2, unsigned int, cmd,
 319                  void *, arg);
 320
 321    *flags |= SfMayBlock;
 322 }
 323
 324 PRE(sys_setdomainname)
 325 {
 326    PRINT ("sys_setdomainname ( %#lx, %ld )", ARG1, SARG2);
 327    PRE_REG_READ2 (long, "setdomainname", const void *, name, int, len);
 328 }
 329
 330 PRE(sys_sethostname)
 331 {
 332    PRINT ("sys_sethostname ( %#lx, %ld )", ARG1, SARG2);
 333    PRE_REG_READ2 (long, "sethostname", const void *, name, int, len);
 334 }
 335
 336 PRE(sys_ptrace)
 337 {
 338    PRINT("sys_ptrace ( %ld, %ld, %#lx, %#lx )", SARG1, SARG2, ARG3, ARG4);
 339    PRE_REG_READ4(int, "ptrace",
 340                  long, request, long, pid, unsigned long, addr,
 341                  unsigned long, data);
 342    switch (ARG1) {
 343       case VKI_PTRACE_PEEKTEXT:
 344       case VKI_PTRACE_PEEKDATA:
 345       case VKI_PTRACE_PEEKUSR:
 346          PRE_MEM_WRITE("ptrace(peek)", ARG4, sizeof(long));
 347          break;
 348       case VKI_PTRACE_GETEVENTMSG:
 349          PRE_MEM_WRITE("ptrace(geteventmsg)", ARG4, sizeof(unsigned long));
 350          break;
 351       case VKI_PTRACE_GETSIGINFO:
 352          PRE_MEM_WRITE("ptrace(getsiginfo)", ARG4, sizeof(vki_siginfo_t));
 353          break;
 354       case VKI_PTRACE_SETSIGINFO:
 355          PRE_MEM_READ("ptrace(setsiginfo)", ARG4, sizeof(vki_siginfo_t));
 356          break;
 357       case VKI_PTRACE_GETREGSET:
 358          ML_(linux_PRE_getregset)(tid, ARG3, ARG4);
 359          break;
 360       default:
 361         break;
 362    }
 363 }
 364
 365 POST(sys_ptrace)
 366 {
 367    switch (ARG1) {
 368       case VKI_PTRACE_TRACEME:
 369          ML_(linux_POST_traceme)(tid);
 370          break;
 371       case VKI_PTRACE_PEEKTEXT:
 372       case VKI_PTRACE_PEEKDATA:
 373       case VKI_PTRACE_PEEKUSR:
 374          POST_MEM_WRITE (ARG4, sizeof(long));
 375          break;
 376       case VKI_PTRACE_GETEVENTMSG:
 377          POST_MEM_WRITE (ARG4, sizeof(unsigned long));
 378       break;
 379       case VKI_PTRACE_GETSIGINFO:
 380          POST_MEM_WRITE (ARG4, sizeof(vki_siginfo_t));
 381          break;
 382       case VKI_PTRACE_GETREGSET:
 383          ML_(linux_POST_getregset)(tid, ARG3, ARG4);
 384          break;
 385       default:
 386       break;
 387    }
 388 }
 389
 390 PRE(sys_mmap)
 391 {
 392    SysRes r;
 393    PRINT("sys_mmap ( %#lx, %lu, %ld, %ld, %ld, %lu )",
 394          ARG1, ARG2, SARG3, SARG4, SARG5, ARG6);
 395    PRE_REG_READ6(long, "mmap", unsigned long, start, vki_size_t, length,
 396                  int, prot, int, flags, int, fd, unsigned long, offset);
 397    r = ML_(generic_PRE_sys_mmap)(tid, ARG1, ARG2, ARG3, ARG4, ARG5,
 398                                  (Off64T) ARG6);
 399    SET_STATUS_from_SysRes(r);
 400 }
 401 PRE(sys_rt_sigreturn)
 402 {
 403    /* See comments on PRE(sys_rt_sigreturn) in syswrap-s390x-linux.c for
 404       an explanation of what follows. */
 405    ThreadState* tst;
 406    PRINT("sys_rt_sigreturn ( )");
 407
 408    vg_assert(VG_(is_valid_tid)(tid));
 409    vg_assert(tid >= 1 && tid < VG_N_THREADS);
 410    vg_assert(VG_(is_running_thread)(tid));
 411
 412    tst = VG_(get_ThreadState)(tid);
 413
 414    /* This is only so that the IA is (might be) useful to report if
 415       something goes wrong in the sigreturn */
 416    ML_(fixup_guest_state_to_restart_syscall)(&tst->arch);
 417
 418    /* Restore register state from frame and remove it */
 419    VG_(sigframe_destroy)(tid, True);
 420
 421    /* Tell the driver not to update the guest state with the "result",
 422       and set a bogus result to keep it happy. */
 423    *flags |= SfNoWriteResult;
 424    SET_STATUS_Success(0);
 425
 426    /* Check to see if any signals arose as a result of this. */
 427    *flags |= SfPollAfter;
 428 }
 429
 430 PRE(sys_set_thread_area)
 431 {
 432    PRINT("set_thread_area (%lx)", ARG1);
 433    PRE_REG_READ1(long, "set_thread_area", unsigned long, addr);
 434    SET_STATUS_from_SysRes(sys_set_tls(tid, ARG1));
 435 }
 436
 437 PRE(sys_pipe)
 438 {
 439    PRINT("sys_pipe ( %#lx )", ARG1);
 440    PRE_REG_READ1(int, "pipe", int *, filedes);
 441    PRE_MEM_WRITE( "pipe(filedes)", ARG1, 2*sizeof(int) );
 442 }
 443
 444 POST(sys_pipe)
 445 {
 446    Int p0, p1;
 447    vg_assert(SUCCESS);
 448    p0 = RES;
 449    p1 = sr_ResEx(status->sres);
 450
 451    if (!ML_(fd_allowed)(p0, "pipe", tid, True) ||
 452        !ML_(fd_allowed)(p1, "pipe", tid, True)) {
 453       VG_(close)(p0);
 454       VG_(close)(p1);
 455       SET_STATUS_Failure( VKI_EMFILE );
 456    } else {
 457       if (VG_(clo_track_fds)) {
 458          ML_(record_fd_open_nameless)(tid, p0);
 459          ML_(record_fd_open_nameless)(tid, p1);
 460       }
 461    }
 462 }
 463
 464 PRE(sys_prctl)
 465 {
 466    switch (ARG1) {
 467       case VKI_PR_SET_FP_MODE:
 468       {
 469          VexArchInfo vai;
 470          VG_(machine_get_VexArchInfo)(NULL, &vai);
 471          /* Reject unsupported modes */
 472          if ((ARG2 & ~VKI_PR_FP_MODE_FR) ||
 473              ((ARG2 & VKI_PR_FP_MODE_FR) &&
 474               !VEX_MIPS_HOST_FP_MODE(vai.hwcaps))) {
 475             SET_STATUS_Failure(VKI_EOPNOTSUPP);
 476          } else {
 477             if (!(VG_(threads)[tid].arch.vex.guest_CP0_status &
 478                   MIPS_CP0_STATUS_FR) != !(ARG2 & VKI_PR_FP_MODE_FR)) {
 479                ThreadId t;
 480                for (t = 1; t < VG_N_THREADS; t++) {
 481                   if (VG_(threads)[t].status != VgTs_Empty) {
 482                      if (ARG2 & VKI_PR_FP_MODE_FR) {
 483                         VG_(threads)[t].arch.vex.guest_CP0_status |=
 484                         MIPS_CP0_STATUS_FR;
 485                      } else {
 486                         VG_(threads)[t].arch.vex.guest_CP0_status &=
 487                         ~MIPS_CP0_STATUS_FR;
 488                      }
 489                   }
 490                }
 491                /* Discard all translations */
 492                VG_(discard_translations)(0, (ULong)(-1ll), "prctl(PR_SET_FP_MODE)");
 493             }
 494             SET_STATUS_Success(0);
 495          }
 496          break;
 497       }
 498       case VKI_PR_GET_FP_MODE:
 499          if (VG_(threads)[tid].arch.vex.guest_CP0_status & MIPS_CP0_STATUS_FR)
 500             SET_STATUS_Success(VKI_PR_FP_MODE_FR);
 501          else
 502             SET_STATUS_Success(0);
 503          break;
 504       default:
 505          WRAPPER_PRE_NAME(linux, sys_prctl)(tid, layout, arrghs, status, flags);
 506          break;
 507    }
 508 }
 509
 510 POST(sys_prctl)
 511 {
 512    WRAPPER_POST_NAME(linux, sys_prctl)(tid, arrghs, status);
 513 }
 514
 515 PRE(sys_fadvise64)
 516 {
 517    PRINT("sys_fadvise64 ( %ld, %ld, %lu, %ld )", SARG1, SARG2, ARG3, SARG4);
 518    PRE_REG_READ4(long, "fadvise64",
 519                  int, fd, vki_loff_t, offset, vki_loff_t, len, int, advice);
 520 }
 521
 522 #undef PRE
 523 #undef POST
 524
 525 /* ---------------------------------------------------------------------
 526    The mips64/Linux syscall table
 527    ------------------------------------------------------------------ */
 528
 529 /* Add an mips64-linux specific wrapper to a syscall table. */
 530 #define PLAX_(sysno, name)    WRAPPER_ENTRY_X_(mips_linux, sysno, name)
 531 #define PLAXY(sysno, name)    WRAPPER_ENTRY_XY(mips_linux, sysno, name)
 532
 533 static SyscallTableEntry syscall_main_table[] = {
 534    GENXY (__NR_read, sys_read),  /* 5000 */
 535    GENX_ (__NR_write, sys_write),
 536    GENXY (__NR_open, sys_open),
 537    GENXY (__NR_close, sys_close),
 538    GENXY (__NR_stat, sys_newstat),
 539    GENXY (__NR_fstat, sys_newfstat),
 540    GENXY (__NR_lstat, sys_newlstat),
 541    GENXY (__NR_poll, sys_poll),
 542    LINX_ (__NR_lseek, sys_lseek),
 543    PLAX_ (__NR_mmap, sys_mmap),
 544    GENXY (__NR_mprotect, sys_mprotect),
 545    GENXY (__NR_munmap, sys_munmap),
 546    GENX_ (__NR_brk, sys_brk),
 547    LINXY (__NR_rt_sigaction, sys_rt_sigaction),
 548    LINXY (__NR_rt_sigprocmask, sys_rt_sigprocmask),
 549    LINXY (__NR_ioctl, sys_ioctl),
 550    LINXY (__NR_eventfd2, sys_eventfd2),
 551    LINXY (__NR_signalfd4, sys_signalfd4),
 552    GENXY (__NR_pread64, sys_pread64),
 553    GENX_ (__NR_pwrite64, sys_pwrite64),
 554    GENXY (__NR_readv, sys_readv),
 555    GENX_ (__NR_writev, sys_writev),
 556    GENX_ (__NR_access, sys_access),
 557    PLAXY (__NR_pipe, sys_pipe),
 558    LINXY (__NR_pipe2, sys_pipe2),
 559    GENX_ (__NR__newselect,sys_select),
 560    LINX_ (__NR_sched_yield, sys_sched_yield),
 561    GENX_ (__NR_mremap, sys_mremap),
 562    GENX_ (__NR_msync, sys_msync),
 563    GENXY (__NR_mincore, sys_mincore),
 564    GENX_ (__NR_madvise, sys_madvise),
 565    LINX_ (__NR_shmget, sys_shmget),
 566    LINXY (__NR_shmat, sys_shmat),
 567    LINXY (__NR_shmctl, sys_shmctl),
 568    GENXY (__NR_dup, sys_dup),
 569    GENXY (__NR_dup2, sys_dup2),
 570    LINXY (__NR_dup3, sys_dup3),
 571    GENX_ (__NR_pause, sys_pause),
 572    GENXY (__NR_nanosleep, sys_nanosleep),
 573    GENXY (__NR_getitimer, sys_getitimer),
 574    GENXY (__NR_setitimer, sys_setitimer),
 575    GENX_ (__NR_alarm, sys_alarm),
 576    GENX_ (__NR_getpid, sys_getpid),
 577    /* LINX_(__NR_fallocate,sys_fallocate), */
 578    LINXY (__NR_sendfile, sys_sendfile),
 579    LINXY (__NR_socket, sys_socket),
 580    LINX_ (__NR_connect, sys_connect),
 581    LINXY (__NR_accept, sys_accept),
 582    LINXY (__NR_accept4, sys_accept4),
 583    LINX_ (__NR_sendto, sys_sendto),
 584    LINXY (__NR_recvfrom, sys_recvfrom),
 585    LINX_ (__NR_sendmsg, sys_sendmsg),
 586    LINXY (__NR_recvmsg, sys_recvmsg),
 587    LINX_ (__NR_shutdown, sys_shutdown),
 588    LINX_ (__NR_bind, sys_bind),
 589    LINX_ (__NR_listen, sys_listen),
 590    LINXY (__NR_getsockname, sys_getsockname),
 591    LINXY (__NR_getpeername, sys_getpeername),
 592    LINXY (__NR_socketpair, sys_socketpair),
 593    LINX_ (__NR_setsockopt, sys_setsockopt),
 594    LINXY (__NR_getsockopt, sys_getsockopt),
 595    LINX_ (__NR_clone, sys_clone),
 596    GENX_ (__NR_fork, sys_fork),
 597    GENX_ (__NR_execve, sys_execve),
 598    GENX_ (__NR_exit, sys_exit),
 599    GENXY (__NR_wait4, sys_wait4),
 600    GENX_ (__NR_kill, sys_kill),
 601    GENXY (__NR_uname, sys_newuname),
 602    LINX_ (__NR_semget, sys_semget),
 603    LINX_ (__NR_semop, sys_semop),
 604    LINXY (__NR_semctl, sys_semctl),
 605    LINXY (__NR_shmdt, sys_shmdt),
 606    LINX_ (__NR_msgget, sys_msgget),
 607    LINX_ (__NR_msgsnd, sys_msgsnd),
 608    LINXY (__NR_msgrcv, sys_msgrcv),
 609    LINXY (__NR_msgctl, sys_msgctl),
 610    LINXY (__NR_fcntl, sys_fcntl),
 611    GENX_ (__NR_flock, sys_flock),
 612    GENX_ (__NR_fsync, sys_fsync),
 613    GENX_ (__NR_fdatasync, sys_fdatasync),
 614    GENX_ (__NR_truncate, sys_truncate),
 615    GENX_ (__NR_ftruncate, sys_ftruncate),
 616    GENXY (__NR_getdents, sys_getdents),
 617    GENXY (__NR_getcwd, sys_getcwd),
 618    GENX_ (__NR_chdir, sys_chdir),
 619    GENX_ (__NR_fchdir, sys_fchdir),
 620    GENX_ (__NR_rename, sys_rename),
 621    GENX_ (__NR_mkdir, sys_mkdir),
 622    GENX_ (__NR_rmdir, sys_rmdir),
 623    GENXY (__NR_creat, sys_creat),
 624    GENX_ (__NR_link, sys_link),
 625    GENX_ (__NR_unlink, sys_unlink),
 626    GENX_ (__NR_symlink, sys_symlink),
 627    GENX_ (__NR_readlink, sys_readlink),
 628    GENX_ (__NR_chmod, sys_chmod),
 629    GENX_ (__NR_fchmod, sys_fchmod),
 630    GENX_ (__NR_chown, sys_chown),
 631    GENX_ (__NR_fchown, sys_fchown),
 632    GENX_ (__NR_lchown, sys_lchown),
 633    GENX_ (__NR_umask, sys_umask),
 634    GENXY (__NR_gettimeofday, sys_gettimeofday),
 635    GENXY (__NR_getrlimit, sys_getrlimit),
 636    GENXY (__NR_getrusage, sys_getrusage),
 637    LINXY (__NR_sysinfo, sys_sysinfo),
 638    GENXY (__NR_times, sys_times),
 639    PLAXY (__NR_ptrace, sys_ptrace),
 640    GENX_ (__NR_getuid, sys_getuid),
 641    LINXY (__NR_syslog, sys_syslog),
 642    GENX_ (__NR_getgid, sys_getgid),
 643    GENX_ (__NR_setuid, sys_setuid),
 644    GENX_ (__NR_setgid, sys_setgid),
 645    GENX_ (__NR_geteuid, sys_geteuid),
 646    GENX_ (__NR_getegid, sys_getegid),
 647    GENX_ (__NR_setpgid, sys_setpgid),
 648    GENX_ (__NR_getppid, sys_getppid),
 649    GENX_ (__NR_getpgrp, sys_getpgrp),
 650    GENX_ (__NR_setsid, sys_setsid),
 651    GENX_ (__NR_setreuid, sys_setreuid),
 652    GENX_ (__NR_setregid, sys_setregid),
 653    GENXY (__NR_getgroups, sys_getgroups),
 654    GENX_ (__NR_setgroups, sys_setgroups),
 655    LINX_ (__NR_setresuid, sys_setresuid),
 656    LINXY (__NR_getresuid, sys_getresuid),
 657    LINX_ (__NR_setresgid, sys_setresgid),
 658    LINXY (__NR_getresgid, sys_getresgid),
 659    GENX_ (__NR_getpgid, sys_getpgid),
 660    LINX_ (__NR_setfsuid, sys_setfsuid),
 661    LINX_ (__NR_setfsgid, sys_setfsgid),
 662    GENX_ (__NR_getsid, sys_getsid),
 663    LINXY (__NR_capget, sys_capget),
 664    LINX_ (__NR_capset, sys_capset),
 665    LINXY (__NR_rt_sigpending, sys_rt_sigpending),
 666    LINXY (__NR_rt_sigtimedwait, sys_rt_sigtimedwait),
 667    LINXY (__NR_rt_sigqueueinfo, sys_rt_sigqueueinfo),
 668    LINX_ (__NR_rt_sigsuspend, sys_rt_sigsuspend),
 669    GENXY (__NR_sigaltstack, sys_sigaltstack),
 670    LINX_ (__NR_utime, sys_utime),
 671    GENX_ (__NR_mknod, sys_mknod),
 672    LINX_ (__NR_personality, sys_personality),
 673    PLAX_ (__NR_ustat, sys_ustat),
 674    GENXY (__NR_statfs, sys_statfs),
 675    GENXY (__NR_fstatfs, sys_fstatfs),
 676    PLAX_ (__NR_sysfs, sys_sysfs),
 677    GENX_ (__NR_getpriority, sys_getpriority),
 678    GENX_ (__NR_setpriority, sys_setpriority),
 679    LINXY (__NR_sched_setparam, sys_sched_setparam),
 680    LINXY (__NR_sched_getparam, sys_sched_getparam),
 681    LINX_ (__NR_sched_setscheduler, sys_sched_setscheduler),
 682    LINX_ (__NR_sched_getscheduler, sys_sched_getscheduler),
 683    LINX_ (__NR_sched_get_priority_max, sys_sched_get_priority_max),
 684    LINX_ (__NR_sched_get_priority_min, sys_sched_get_priority_min),
 685    PLAX_ (__NR_sched_rr_get_interval, sys_sched_rr_get_interval),
 686    GENX_ (__NR_mlock, sys_mlock),
 687    GENX_ (__NR_munlock, sys_munlock),
 688    GENX_ (__NR_mlockall, sys_mlockall),
 689    LINX_ (__NR_munlockall, sys_munlockall),
 690    LINX_ (__NR_vhangup, sys_vhangup),
 691    LINX_ (__NR_pivot_root,sys_pivot_root),
 692    LINXY (__NR__sysctl, sys_sysctl),
 693    PLAXY (__NR_prctl, sys_prctl),
 694    LINXY (__NR_adjtimex, sys_adjtimex),
 695    GENX_ (__NR_setrlimit, sys_setrlimit),
 696    GENX_ (__NR_chroot, sys_chroot),
 697    GENX_ (__NR_sync, sys_sync),
 698    GENX_ (__NR_acct, sys_acct),
 699    GENX_ (__NR_settimeofday, sys_settimeofday),
 700    LINX_ (__NR_mount, sys_mount),
 701    LINX_ (__NR_umount2, sys_umount),
 702    PLAX_ (__NR_swapon, sys_swapon),
 703    PLAX_ (__NR_swapoff, sys_swapoff),
 704    PLAX_ (__NR_reboot, sys_reboot),
 705    PLAX_ (__NR_sethostname, sys_sethostname),
 706    PLAX_ (__NR_setdomainname, sys_setdomainname),
 707    GENX_ (__NR_create_module, sys_ni_syscall),
 708    LINX_ (__NR_init_module, sys_init_module),
 709    LINX_ (__NR_delete_module, sys_delete_module),
 710    GENX_ (__NR_get_kernel_syms, sys_ni_syscall),
 711    GENX_ (__NR_query_module, sys_ni_syscall),
 712    LINX_ (__NR_quotactl, sys_quotactl),
 713    /* GENX_(__NR_nfsservctl,sys_nfsservctl), */
 714    GENXY (__NR_getpmsg, sys_getpmsg),
 715    GENX_ (__NR_putpmsg, sys_putpmsg),
 716    GENX_ (__NR_afs_syscall, sys_ni_syscall),
 717    /* GENX_(__NR_reserved177,sys_reserved177), */
 718    LINX_ (__NR_gettid, sys_gettid),
 719    /* GENX_(__NR_readahead,sys_readahead), */
 720    LINX_ (__NR_setxattr, sys_setxattr),
 721    LINX_ (__NR_lsetxattr, sys_lsetxattr),
 722    LINX_ (__NR_fsetxattr, sys_fsetxattr),
 723    LINXY (__NR_getxattr, sys_getxattr),
 724    LINXY (__NR_lgetxattr, sys_lgetxattr),
 725    LINXY (__NR_fgetxattr, sys_fgetxattr),
 726    LINXY (__NR_listxattr, sys_listxattr),
 727    LINXY (__NR_llistxattr, sys_llistxattr),
 728    LINXY (__NR_flistxattr, sys_flistxattr),
 729    LINX_ (__NR_removexattr, sys_removexattr),
 730    LINX_ (__NR_lremovexattr, sys_lremovexattr),
 731    LINX_ (__NR_fremovexattr, sys_fremovexattr),
 732    LINXY (__NR_tkill, sys_tkill),
 733    /* GENX_(__NR_reserved193,sys_reserved193), */
 734    LINXY (__NR_futex, sys_futex),
 735    LINX_ (__NR_sched_setaffinity, sys_sched_setaffinity),
 736    LINXY (__NR_sched_getaffinity, sys_sched_getaffinity),
 737    PLAX_ (__NR_cacheflush, sys_cacheflush),
 738    LINXY (__NR_io_setup, sys_io_setup),
 739    LINX_ (__NR_io_destroy, sys_io_destroy),
 740    LINXY (__NR_io_getevents, sys_io_getevents),
 741    LINX_ (__NR_io_submit, sys_io_submit),
 742    LINXY (__NR_io_cancel, sys_io_cancel),
 743    LINX_ (__NR_exit_group, sys_exit_group),
 744    /* LINXY (__NR_lookup_dcookie, sys_lookup_dcookie), */
 745    LINXY (__NR_epoll_create, sys_epoll_create),
 746    LINXY (__NR_epoll_create1, sys_epoll_create1),
 747    LINX_ (__NR_epoll_ctl, sys_epoll_ctl),
 748    LINXY (__NR_epoll_wait, sys_epoll_wait),
 749    PLAX_(__NR_rt_sigreturn,sys_rt_sigreturn),
 750    /* LINXY(__NR_fcntl64,sys_fcntl64), */
 751    LINX_ (__NR_set_tid_address, sys_set_tid_address),
 752    LINX_ (__NR_semtimedop, sys_semtimedop),
 753    PLAX_ (__NR_fadvise64, sys_fadvise64),
 754    LINXY (__NR_timer_create, sys_timer_create),
 755    LINXY (__NR_timer_settime, sys_timer_settime),
 756    LINXY (__NR_timer_gettime, sys_timer_gettime),
 757    LINX_ (__NR_timer_getoverrun, sys_timer_getoverrun),
 758    LINX_ (__NR_timer_delete, sys_timer_delete),
 759    LINX_ (__NR_clock_settime, sys_clock_settime),
 760    LINXY (__NR_clock_gettime, sys_clock_gettime),
 761    LINXY (__NR_clock_getres, sys_clock_getres),
 762    LINXY (__NR_clock_nanosleep, sys_clock_nanosleep),
 763    LINX_ (__NR_tgkill, sys_tgkill),
 764    GENX_ (__NR_utimes, sys_utimes),
 765    LINX_ (__NR_mbind, sys_mbind),
 766    LINXY (__NR_get_mempolicy, sys_get_mempolicy),
 767    LINX_ (__NR_set_mempolicy, sys_set_mempolicy),
 768    LINXY (__NR_mq_open, sys_mq_open),
 769    LINX_ (__NR_mq_unlink, sys_mq_unlink),
 770    LINX_ (__NR_mq_timedsend, sys_mq_timedsend),
 771    LINXY (__NR_mq_timedreceive, sys_mq_timedreceive),
 772    LINX_ (__NR_mq_notify, sys_mq_notify),
 773    LINXY (__NR_mq_getsetattr, sys_mq_getsetattr),
 774    GENX_ (__NR_vserver, sys_ni_syscall),
 775    LINXY (__NR_waitid, sys_waitid),
 776    LINX_ (__NR_add_key, sys_add_key),
 777    LINX_ (__NR_request_key, sys_request_key),
 778    LINXY (__NR_keyctl, sys_keyctl),
 779    PLAX_ (__NR_set_thread_area, sys_set_thread_area),
 780    LINX_ (__NR_inotify_init, sys_inotify_init),
 781    LINX_ (__NR_inotify_add_watch, sys_inotify_add_watch),
 782    LINX_ (__NR_inotify_rm_watch, sys_inotify_rm_watch),
 783    LINXY (__NR_openat, sys_openat),
 784    LINX_ (__NR_mkdirat, sys_mkdirat),
 785    LINX_ (__NR_mknodat, sys_mknodat),
 786    LINX_ (__NR_fchownat, sys_fchownat),
 787    LINX_ (__NR_futimesat, sys_futimesat),
 788    LINX_ (__NR_unlinkat, sys_unlinkat),
 789    LINX_ (__NR_renameat, sys_renameat),
 790    LINX_ (__NR_linkat, sys_linkat),
 791    LINX_ (__NR_symlinkat, sys_symlinkat),
 792    LINX_ (__NR_readlinkat, sys_readlinkat),
 793    LINX_ (__NR_fchmodat, sys_fchmodat),
 794    LINX_ (__NR_faccessat, sys_faccessat),
 795    LINXY (__NR_pselect6, sys_pselect6),
 796    LINXY (__NR_ppoll, sys_ppoll),
 797    PLAX_ (__NR_unshare, sys_unshare),
 798    PLAX_ (__NR_splice, sys_splice),
 799    LINX_ (__NR_sync_file_range, sys_sync_file_range),
 800    PLAX_ (__NR_tee, sys_tee),
 801    PLAX_ (__NR_vmsplice, sys_vmsplice),
 802    LINX_ (__NR_set_robust_list, sys_set_robust_list),
 803    LINXY (__NR_get_robust_list, sys_get_robust_list),
 804    LINXY (__NR_epoll_pwait, sys_epoll_pwait),
 805    LINX_ (__NR_ioprio_set, sys_ioprio_set),
 806    LINX_ (__NR_ioprio_get, sys_ioprio_get),
 807    LINX_ (__NR_utimensat, sys_utimensat),
 808    LINXY (__NR_signalfd, sys_signalfd),
 809    LINXY (__NR_eventfd, sys_eventfd),
 810    LINX_ (__NR_fallocate, sys_fallocate),
 811    LINXY (__NR_timerfd_create, sys_timerfd_create),
 812    LINXY (__NR_timerfd_gettime, sys_timerfd_gettime),
 813    LINXY (__NR_timerfd_settime, sys_timerfd_settime),
 814    LINXY (__NR_newfstatat, sys_newfstatat),
 815    LINXY (__NR_prlimit64, sys_prlimit64),
 816    LINXY (__NR_clock_adjtime, sys_clock_adjtime),
 817    LINXY (__NR_process_vm_readv, sys_process_vm_readv),
 818    LINX_ (__NR_process_vm_writev, sys_process_vm_writev),
 819    LINXY(__NR_getrandom, sys_getrandom),
 820    LINXY(__NR_memfd_create, sys_memfd_create),
 821    LINX_(__NR_syncfs, sys_syncfs)
 822 };
 823
 824 SyscallTableEntry * ML_(get_linux_syscall_entry) ( UInt sysno )
 825 {
 826    const UInt syscall_main_table_size
 827       = sizeof(syscall_main_table) / sizeof(syscall_main_table[0]);
 828
 829    if (sysno < syscall_main_table_size) {
 830       SyscallTableEntry * sys = &syscall_main_table[sysno];
 831       if (sys->before == NULL)
 832          return NULL;  /* no entry */
 833       else
 834          return sys;
 835    }
 836    /* Can't find a wrapper */
 837    return NULL;
 838 }
 839
 840 #endif  /* defined(VGP_mips64_linux) */
 841
 842 /*--------------------------------------------------------------------*/
 843 /*--- end                                   syswrap-mips64-linux.c ---*/
 844 /*--------------------------------------------------------------------*/