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
  12    This program is free software; you can redistribute it and/or
  13    modify it under the terms of the GNU General Public License as
  14    published by the Free Software Foundation; either version 2 of the
  15    License, or (at your option) any later version.
  16
  17    This program is distributed in the hope that it will be useful, but
  18    WITHOUT ANY WARRANTY; without even the implied warranty of
  19    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  20    General Public License for more details.
  21
  22    You should have received a copy of the GNU General Public License
  23    along with this program; if not, see <http://www.gnu.org/licenses/>.
  24
  25    The GNU General Public License is contained in the file COPYING.
  26 */
  27
  28 #if defined(VGP_mips64_linux)
  29 #include "pub_core_basics.h"
  30 #include "pub_core_vki.h"
  31 #include "pub_core_vkiscnums.h"
  32 #include "pub_core_threadstate.h"
  33 #include "pub_core_aspacemgr.h"
  34 #include "pub_core_debuglog.h"
  35 #include "pub_core_libcbase.h"
  36 #include "pub_core_libcassert.h"
  37 #include "pub_core_libcprint.h"
  38 #include "pub_core_libcproc.h"
  39 #include "pub_core_libcsignal.h"
  40 #include "pub_core_options.h"
  41 #include "pub_core_scheduler.h"
  42 #include "pub_core_sigframe.h"     /* For VG_(sigframe_destroy)() */
  43 #include "pub_core_signals.h"
  44 #include "pub_core_syscall.h"
  45 #include "pub_core_syswrap.h"
  46 #include "pub_core_tooliface.h"
  47 #include "pub_core_transtab.h"     /* VG_(discard_translations) */
  48 #include "priv_types_n_macros.h"
  49 #include "priv_syswrap-generic.h"  /* for decls of generic wrappers */
  50 #include "priv_syswrap-linux.h"    /* for decls of linux-ish wrappers */
  51 #include "priv_syswrap-main.h"
  52
  53 #include "pub_core_debuginfo.h"    /* VG_(di_notify_*) */
  54 #include "pub_core_xarray.h"
  55 #include "pub_core_clientstate.h"  /* VG_(brk_base), VG_(brk_limit) */
  56 #include "pub_core_errormgr.h"
  57 #include "pub_core_gdbserver.h"    /* VG_(gdbserver) */
  58 #include "pub_core_libcfile.h"
  59 #include "pub_core_machine.h"      /* VG_(get_SP) */
  60 #include "pub_core_mallocfree.h"
  61 #include "pub_core_stacktrace.h"   /* For VG_(get_and_pp_StackTrace)() */
  62 #include "pub_core_ume.h"
  63
  64 #include "config.h"
  65
  66 #include <errno.h>
  67
  68 /* ---------------------------------------------------------------------
  69                              clone() handling
  70    ------------------------------------------------------------------ */
  71
  72 /* Call f(arg1), but first switch stacks, using 'stack' as the new stack, and
  73    use 'retaddr' as f's return-to address. Also, clear all the integer registers
  74    before entering f. */
  75 __attribute__ ((noreturn))
  76 void ML_(call_on_new_stack_0_1) ( Addr stack,             /* $4 - $a0 */
  77                                   Addr retaddr,           /* $5 - $a1 */
  78                                   void (*f_desc) (Word),  /* $6 - $a2 */
  79                                   Word arg1 );            /* $7 - $a3 */
  80 asm (
  81 ".text\n"
  82 ".globl vgModuleLocal_call_on_new_stack_0_1\n"
  83 "vgModuleLocal_call_on_new_stack_0_1:\n"
  84 "   move $29, $4\n"   /* set stack */
  85 "   move $4,  $7\n"   /* arg1 to $4 */
  86 "   move $25, $6\n"
  87 "   move $31, $5\n"   /* retaddr to $ra */
  88 "   li   $2, 0\n\t"   /* zero all GP regs */
  89 "   li   $3, 0\n\t"
  90 "   li   $5, 0\n\t"
  91 "   li   $6, 0\n\t"
  92 "   li   $7, 0\n\t"
  93 "   li   $12, 0\n\t"
  94 "   li   $13, 0\n\t"
  95 "   li   $14, 0\n\t"
  96 "   li   $15, 0\n\t"
  97 "   li   $16, 0\n\t"
  98 "   li   $17, 0\n\t"
  99 "   li   $18, 0\n\t"
 100 "   li   $19, 0\n\t"
 101 "   li   $20, 0\n\t"
 102 "   li   $21, 0\n\t"
 103 "   li   $22, 0\n\t"
 104 "   li   $23, 0\n\t"
 105 "   li   $24, 0\n\t"
 106 "   jr $25\n"         /* jump to f */
 107 "   break 0x7\n"      /* should never get here */
 108 ".previous\n"
 109 );
 110
 111 /* Perform a clone system call.  clone is strange because it has fork()-like
 112    return-twice semantics, so it needs special handling here.
 113
 114    Upon entry, we have:
 115
 116       word (fn)(void*)    in a0 = 4
 117       void* child_stack   in a1 = 5
 118       word flags          in a2 = 6
 119       void* arg           in a3 = 7
 120       pid_t* parent_tid   in a4 = 8
 121       void* tls           in a5 = 9
 122       pid_t* child_tid    in a6 = 10
 123
 124    System call requires:
 125
 126       int    $__NR_clone  in v0
 127       int    flags        in a0 = 4
 128       void*  child_stack  in a1 = 5
 129       pid_t* parent_tid   in a2 = 6
 130       void*  tls_ptr      in a3 = 7
 131       pid_t* child_tid    in a4 = 8 */
 132
 133 #define __NR_CLONE        __NR_clone
 134 #define __NR_EXIT         __NR_exit
 135
 136 // See priv_syswrap-linux.h for arg profile.
 137 asm(
 138 ".text\n"
 139 ".set noreorder\n"
 140 ".set nomacro\n"
 141 ".globl do_syscall_clone_mips64_linux\n"
 142 "do_syscall_clone_mips64_linux:\n"
 143 "   daddiu $29, $29, -32\n"
 144 "   sd $31, 0($29)\n"
 145 "   sd $30, 8($29)\n"
 146 "   sd $28, 16($29)\n"
 147
 148 "   daddiu  $5, $5, -32\n"
 149 "   sd $4, 0($5)\n"   /* fn */
 150 "   sd $7, 8($5)\n"   /* arg */
 151 "   sd $6, 16($5)\n"  /* flags */
 152
 153 /* 1. arg for syscalls */
 154 "   move $4, $6\n"   /* flags */
 155 "   move $6, $8\n"   /* parent */
 156 "   move $7, $a5\n"  /* tls */
 157 "   move $8, $a6\n"  /* child */
 158
 159 /* 2. do a syscall to clone */
 160 "   li  $2, 5055\n"  /* syscall num for clone */
 161 "   syscall\n"
 162
 163 /* 3. See if we are a child, call fn and after that exit */
 164 "   bnez $7, p_or_error\n"
 165 "   nop\n"
 166
 167 "   bnez $2, p_or_error\n"
 168 "   nop\n"
 169
 170 "   ld $25,0($29)\n"
 171 "   jalr $25\n"
 172 "   ld $4,8($29)\n"
 173
 174 "   move $4, $2\n\t"  /* retval from fn is in $v0 */
 175 "   li $2, 5058\n\t"  /* NR_exit */
 176 "   syscall\n\t"
 177 "   nop\n\t"
 178 /* 4. If we are parent or error, just return to caller */
 179 "   p_or_error:\n"
 180 "   ld $31, 0($29)\n"
 181 "   ld $30, 8($29)\n"
 182 "   ld $28, 16($29)\n"
 183 "   jr $31\n"
 184 "   daddiu $29,$29, 32\n"
 185 ".previous\n"
 186 );
 187
 188 #undef __NR_CLONE
 189 #undef __NR_EXIT
 190
 191 /* forward declarations */
 192 static SysRes sys_set_tls ( ThreadId tid, Addr tlsptr);
 193
 194 /* ---------------------------------------------------------------------
 195                           More thread stuff
 196    ------------------------------------------------------------------ */
 197 void VG_(cleanup_thread) ( ThreadArchState * arch ) { };
 198
 199 SysRes sys_set_tls ( ThreadId tid, Addr tlsptr )
 200 {
 201    VG_(threads)[tid].arch.vex.guest_ULR = tlsptr;
 202    return VG_(mk_SysRes_Success)( 0 );
 203 }
 204
 205 /* ---------------------------------------------------------------------
 206            PRE/POST wrappers for mips/Linux-specific syscalls
 207    ------------------------------------------------------------------ */
 208
 209 #define PRE(name)       DEFN_PRE_TEMPLATE(mips_linux, name)
 210 #define POST(name)      DEFN_POST_TEMPLATE(mips_linux, name)
 211
 212 /* Add prototypes for the wrappers declared here, so that gcc doesn't harass us
 213    for not having prototypes. Really this is a kludge -- the right thing to do
 214    is to make these wrappers 'static' since they aren't visible outside this
 215    file, but that requires even more macro magic. */
 216
 217 DECL_TEMPLATE (mips_linux, sys_set_thread_area);
 218 DECL_TEMPLATE (mips_linux, sys_vmsplice);
 219 DECL_TEMPLATE (mips_linux, sys_ustat);
 220 DECL_TEMPLATE (mips_linux, sys_sysfs);
 221 DECL_TEMPLATE (mips_linux, sys_swapon);
 222 DECL_TEMPLATE (mips_linux, sys_swapoff);
 223 DECL_TEMPLATE (mips_linux, sys_setdomainname);
 224 DECL_TEMPLATE (mips_linux, sys_sethostname);
 225 DECL_TEMPLATE (mips_linux, sys_reboot);
 226 DECL_TEMPLATE (mips_linux, sys_cacheflush);
 227 DECL_TEMPLATE (mips_linux, sys_sched_rr_get_interval);
 228 DECL_TEMPLATE (mips_linux, sys_prctl);
 229 DECL_TEMPLATE (mips_linux, sys_ptrace);
 230 DECL_TEMPLATE (mips_linux, sys_mmap);
 231 DECL_TEMPLATE (mips_linux, sys_rt_sigreturn);
 232 DECL_TEMPLATE (mips_linux, sys_pipe);
 233 DECL_TEMPLATE (mips_linux, sys_fadvise64);
 234
 235 PRE(sys_vmsplice)
 236 {
 237    PRINT("sys_vmsplice ( %ld, %#" FMT_REGWORD "x, %" FMT_REGWORD "u, %ld )",
 238          SARG1, ARG2, ARG3, SARG4);
 239    PRE_REG_READ4(long, "sys_vmsplice", int, fdin, struct vki_iovec *, v,
 240                  vki_size_t, len, int, flags);
 241 }
 242
 243 PRE(sys_sched_rr_get_interval)
 244 {
 245    PRINT("sys_sched_rr_get_interval ( %ld, %#" FMT_REGWORD "x)", SARG1, ARG2);
 246    PRE_REG_READ2(long, "sched_rr_get_interval", vki_pid_t, pid,
 247                  struct timespec *, timer);
 248    *flags |= SfMayBlock;
 249 }
 250
 251 PRE(sys_ustat)
 252 {
 253    PRINT("sys_ustat ( %#" FMT_REGWORD "x, %#" FMT_REGWORD "x)", ARG1, ARG2);
 254    PRE_REG_READ2(long, "ustat", int, flags, const void *, path);
 255 }
 256
 257 PRE(sys_swapon)
 258 {
 259    PRINT("sys_swapon ( %#" FMT_REGWORD "x, %#" FMT_REGWORD "x )", ARG1, ARG2);
 260    PRE_REG_READ2(long, "swapon", const void *, path, int, flags);
 261 }
 262
 263 PRE(sys_swapoff)
 264 {
 265    PRINT("sys_swapoff ( %#" FMT_REGWORD "x )", ARG1);
 266    PRE_REG_READ1(long, "swapoff", const void *, path);
 267 }
 268
 269 PRE(sys_sysfs)
 270 {
 271    PRINT("sys_sysfs ( %ld, %#" FMT_REGWORD "x, %#" FMT_REGWORD "x )",
 272          SARG1, ARG2, ARG3);
 273    PRE_REG_READ3(long, "sysfs", int, flags, int, desc, const void *, path);
 274 }
 275
 276 /* Very much MIPS specific */
 277 PRE(sys_cacheflush)
 278 {
 279    PRINT("cacheflush (%" FMT_REGWORD "x, %" FMT_REGWORD "x, %" FMT_REGWORD
 280          "x)", ARG1, ARG2, ARG3);
 281    PRE_REG_READ3(long, "cacheflush", unsigned long, addr,
 282                  unsigned long, nbytes, unsigned int, cache);
 283    VG_ (discard_translations) ((Addr)ARG1, (ULong) ARG2,
 284                                "PRE(sys_cacheflush)");
 285    SET_STATUS_Success(0);
 286 }
 287
 288 PRE(sys_reboot)
 289 {
 290    PRINT("sys_reboot ( %ld, %" FMT_REGWORD "u, %" FMT_REGWORD "u, %#"
 291          FMT_REGWORD "x )", SARG1, ARG2, ARG3, ARG4);
 292    // An approximation. ARG4 is only read conditionally by the kernel
 293    PRE_REG_READ4(int, "reboot",
 294                  int, magic1, int, magic2, unsigned int, cmd,
 295                  void *, arg);
 296
 297    *flags |= SfMayBlock;
 298 }
 299
 300 PRE(sys_setdomainname)
 301 {
 302    PRINT ("sys_setdomainname ( %#" FMT_REGWORD "x, %ld )", ARG1, SARG2);
 303    PRE_REG_READ2 (long, "setdomainname", const void *, name, int, len);
 304 }
 305
 306 PRE(sys_sethostname)
 307 {
 308    PRINT ("sys_sethostname ( %#" FMT_REGWORD "x, %ld )", ARG1, SARG2);
 309    PRE_REG_READ2 (long, "sethostname", const void *, name, int, len);
 310 }
 311
 312 PRE(sys_ptrace)
 313 {
 314    PRINT("sys_ptrace ( %ld, %ld, %#" FMT_REGWORD "x, %#" FMT_REGWORD "x )",
 315          SARG1, SARG2, ARG3, ARG4);
 316    PRE_REG_READ4(int, "ptrace",
 317                  long, request, long, pid, unsigned long, addr,
 318                  unsigned long, data);
 319    switch (ARG1) {
 320       case VKI_PTRACE_PEEKTEXT:
 321       case VKI_PTRACE_PEEKDATA:
 322       case VKI_PTRACE_PEEKUSR:
 323          PRE_MEM_WRITE("ptrace(peek)", ARG4, sizeof(long));
 324          break;
 325       case VKI_PTRACE_GETEVENTMSG:
 326          PRE_MEM_WRITE("ptrace(geteventmsg)", ARG4, sizeof(unsigned long));
 327          break;
 328       case VKI_PTRACE_GETSIGINFO:
 329          PRE_MEM_WRITE("ptrace(getsiginfo)", ARG4, sizeof(vki_siginfo_t));
 330          break;
 331       case VKI_PTRACE_SETSIGINFO:
 332          PRE_MEM_READ("ptrace(setsiginfo)", ARG4, sizeof(vki_siginfo_t));
 333          break;
 334       case VKI_PTRACE_GETREGSET:
 335          ML_(linux_PRE_getregset)(tid, ARG3, ARG4);
 336          break;
 337       default:
 338         break;
 339    }
 340 }
 341
 342 POST(sys_ptrace)
 343 {
 344    switch (ARG1) {
 345       case VKI_PTRACE_TRACEME:
 346          ML_(linux_POST_traceme)(tid);
 347          break;
 348       case VKI_PTRACE_PEEKTEXT:
 349       case VKI_PTRACE_PEEKDATA:
 350       case VKI_PTRACE_PEEKUSR:
 351          POST_MEM_WRITE (ARG4, sizeof(long));
 352          break;
 353       case VKI_PTRACE_GETEVENTMSG:
 354          POST_MEM_WRITE (ARG4, sizeof(unsigned long));
 355       break;
 356       case VKI_PTRACE_GETSIGINFO:
 357          POST_MEM_WRITE (ARG4, sizeof(vki_siginfo_t));
 358          break;
 359       case VKI_PTRACE_GETREGSET:
 360          ML_(linux_POST_getregset)(tid, ARG3, ARG4);
 361          break;
 362       default:
 363       break;
 364    }
 365 }
 366
 367 PRE(sys_mmap)
 368 {
 369    SysRes r;
 370    PRINT("sys_mmap ( %#" FMT_REGWORD "x, %" FMT_REGWORD "u, %ld, %ld, %ld, %"
 371          FMT_REGWORD "u )",
 372          ARG1, ARG2, SARG3, SARG4, SARG5, ARG6);
 373    PRE_REG_READ6(long, "mmap", unsigned long, start, vki_size_t, length,
 374                  int, prot, int, flags, int, fd, unsigned long, offset);
 375    r = ML_(generic_PRE_sys_mmap)(tid, ARG1, ARG2, ARG3, ARG4, ARG5,
 376                                  (Off64T) ARG6);
 377    SET_STATUS_from_SysRes(r);
 378 }
 379 PRE(sys_rt_sigreturn)
 380 {
 381    /* See comments on PRE(sys_rt_sigreturn) in syswrap-s390x-linux.c for
 382       an explanation of what follows. */
 383    ThreadState* tst;
 384    PRINT("sys_rt_sigreturn ( )");
 385
 386    vg_assert(VG_(is_valid_tid)(tid));
 387    vg_assert(tid >= 1 && tid < VG_N_THREADS);
 388    vg_assert(VG_(is_running_thread)(tid));
 389
 390    tst = VG_(get_ThreadState)(tid);
 391
 392    /* This is only so that the IA is (might be) useful to report if
 393       something goes wrong in the sigreturn */
 394    ML_(fixup_guest_state_to_restart_syscall)(&tst->arch);
 395
 396    /* Restore register state from frame and remove it */
 397    VG_(sigframe_destroy)(tid, True);
 398
 399    /* Tell the driver not to update the guest state with the "result",
 400       and set a bogus result to keep it happy. */
 401    *flags |= SfNoWriteResult;
 402    SET_STATUS_Success(0);
 403
 404    /* Check to see if any signals arose as a result of this. */
 405    *flags |= SfPollAfter;
 406 }
 407
 408 PRE(sys_set_thread_area)
 409 {
 410    PRINT("set_thread_area (%" FMT_REGWORD "x)", ARG1);
 411    PRE_REG_READ1(long, "set_thread_area", unsigned long, addr);
 412    SET_STATUS_from_SysRes(sys_set_tls(tid, ARG1));
 413 }
 414
 415 PRE(sys_pipe)
 416 {
 417    PRINT("sys_pipe ( %#" FMT_REGWORD "x )", ARG1);
 418    PRE_REG_READ1(int, "pipe", int *, filedes);
 419    PRE_MEM_WRITE( "pipe(filedes)", ARG1, 2*sizeof(int) );
 420 }
 421
 422 POST(sys_pipe)
 423 {
 424    Int p0, p1;
 425    vg_assert(SUCCESS);
 426    p0 = RES;
 427    p1 = sr_ResEx(status->sres);
 428
 429    if (!ML_(fd_allowed)(p0, "pipe", tid, True) ||
 430        !ML_(fd_allowed)(p1, "pipe", tid, True)) {
 431       VG_(close)(p0);
 432       VG_(close)(p1);
 433       SET_STATUS_Failure( VKI_EMFILE );
 434    } else {
 435       if (VG_(clo_track_fds)) {
 436          ML_(record_fd_open_nameless)(tid, p0);
 437          ML_(record_fd_open_nameless)(tid, p1);
 438       }
 439    }
 440 }
 441
 442 PRE(sys_prctl)
 443 {
 444    switch (ARG1) {
 445       case VKI_PR_SET_FP_MODE:
 446       {
 447          VexArchInfo vai;
 448          VG_(machine_get_VexArchInfo)(NULL, &vai);
 449          /* Reject unsupported modes */
 450          if ((ARG2 & ~VKI_PR_FP_MODE_FR) ||
 451              ((ARG2 & VKI_PR_FP_MODE_FR) &&
 452               !VEX_MIPS_HOST_FP_MODE(vai.hwcaps))) {
 453             SET_STATUS_Failure(VKI_EOPNOTSUPP);
 454          } else {
 455             if (!(VG_(threads)[tid].arch.vex.guest_CP0_status &
 456                   MIPS_CP0_STATUS_FR) != !(ARG2 & VKI_PR_FP_MODE_FR)) {
 457                ThreadId t;
 458                for (t = 1; t < VG_N_THREADS; t++) {
 459                   if (VG_(threads)[t].status != VgTs_Empty) {
 460                      if (ARG2 & VKI_PR_FP_MODE_FR) {
 461                         VG_(threads)[t].arch.vex.guest_CP0_status |=
 462                         MIPS_CP0_STATUS_FR;
 463                      } else {
 464                         VG_(threads)[t].arch.vex.guest_CP0_status &=
 465                         ~MIPS_CP0_STATUS_FR;
 466                      }
 467                   }
 468                }
 469                /* Discard all translations */
 470                VG_(discard_translations)(0, (ULong)(-1ll), "prctl(PR_SET_FP_MODE)");
 471             }
 472             SET_STATUS_Success(0);
 473          }
 474          break;
 475       }
 476       case VKI_PR_GET_FP_MODE:
 477          if (VG_(threads)[tid].arch.vex.guest_CP0_status & MIPS_CP0_STATUS_FR)
 478             SET_STATUS_Success(VKI_PR_FP_MODE_FR);
 479          else
 480             SET_STATUS_Success(0);
 481          break;
 482       default:
 483          WRAPPER_PRE_NAME(linux, sys_prctl)(tid, layout, arrghs, status, flags);
 484          break;
 485    }
 486 }
 487
 488 POST(sys_prctl)
 489 {
 490    WRAPPER_POST_NAME(linux, sys_prctl)(tid, arrghs, status);
 491 }
 492
 493 PRE(sys_fadvise64)
 494 {
 495    PRINT("sys_fadvise64 ( %ld, %ld, %" FMT_REGWORD "u, %ld )", SARG1, SARG2,
 496          ARG3, SARG4);
 497    PRE_REG_READ4(long, "fadvise64",
 498                  int, fd, vki_loff_t, offset, vki_loff_t, len, int, advice);
 499 }
 500
 501 #undef PRE
 502 #undef POST
 503
 504 /* ---------------------------------------------------------------------
 505    The mips64/Linux syscall table
 506    ------------------------------------------------------------------ */
 507
 508 /* Add an mips64-linux specific wrapper to a syscall table. */
 509 #define PLAX_(sysno, name)    WRAPPER_ENTRY_X_(mips_linux, sysno, name)
 510 #define PLAXY(sysno, name)    WRAPPER_ENTRY_XY(mips_linux, sysno, name)
 511
 512 static SyscallTableEntry syscall_main_table[] = {
 513    GENXY (__NR_read, sys_read),  /* 5000 */
 514    GENX_ (__NR_write, sys_write),
 515    GENXY (__NR_open, sys_open),
 516    GENXY (__NR_close, sys_close),
 517    GENXY (__NR_stat, sys_newstat),
 518    GENXY (__NR_fstat, sys_newfstat),
 519    GENXY (__NR_lstat, sys_newlstat),
 520    GENXY (__NR_poll, sys_poll),
 521    LINX_ (__NR_lseek, sys_lseek),
 522    PLAX_ (__NR_mmap, sys_mmap),
 523    GENXY (__NR_mprotect, sys_mprotect),
 524    GENXY (__NR_munmap, sys_munmap),
 525    GENX_ (__NR_brk, sys_brk),
 526    LINXY (__NR_rt_sigaction, sys_rt_sigaction),
 527    LINXY (__NR_rt_sigprocmask, sys_rt_sigprocmask),
 528    LINXY (__NR_ioctl, sys_ioctl),
 529    LINXY (__NR_eventfd2, sys_eventfd2),
 530    LINXY (__NR_signalfd4, sys_signalfd4),
 531    GENXY (__NR_pread64, sys_pread64),
 532    GENX_ (__NR_pwrite64, sys_pwrite64),
 533    GENXY (__NR_readv, sys_readv),
 534    GENX_ (__NR_writev, sys_writev),
 535    GENX_ (__NR_access, sys_access),
 536    PLAXY (__NR_pipe, sys_pipe),
 537    LINXY (__NR_pipe2, sys_pipe2),
 538    GENX_ (__NR__newselect,sys_select),
 539    LINX_ (__NR_sched_yield, sys_sched_yield),
 540    GENX_ (__NR_mremap, sys_mremap),
 541    GENX_ (__NR_msync, sys_msync),
 542    GENXY (__NR_mincore, sys_mincore),
 543    GENX_ (__NR_madvise, sys_madvise),
 544    LINX_ (__NR_shmget, sys_shmget),
 545    LINXY (__NR_shmat, sys_shmat),
 546    LINXY (__NR_shmctl, sys_shmctl),
 547    GENXY (__NR_dup, sys_dup),
 548    GENXY (__NR_dup2, sys_dup2),
 549    LINXY (__NR_dup3, sys_dup3),
 550    GENX_ (__NR_pause, sys_pause),
 551    GENXY (__NR_nanosleep, sys_nanosleep),
 552    GENXY (__NR_getitimer, sys_getitimer),
 553    GENXY (__NR_setitimer, sys_setitimer),
 554    GENX_ (__NR_alarm, sys_alarm),
 555    GENX_ (__NR_getpid, sys_getpid),
 556    /* LINX_(__NR_fallocate,sys_fallocate), */
 557    LINXY (__NR_sendfile, sys_sendfile),
 558    LINXY (__NR_socket, sys_socket),
 559    LINX_ (__NR_connect, sys_connect),
 560    LINXY (__NR_accept, sys_accept),
 561    LINXY (__NR_accept4, sys_accept4),
 562    LINX_ (__NR_sendto, sys_sendto),
 563    LINXY (__NR_recvfrom, sys_recvfrom),
 564    LINX_ (__NR_sendmsg, sys_sendmsg),
 565    LINXY (__NR_recvmsg, sys_recvmsg),
 566    LINX_ (__NR_shutdown, sys_shutdown),
 567    LINX_ (__NR_bind, sys_bind),
 568    LINX_ (__NR_listen, sys_listen),
 569    LINXY (__NR_getsockname, sys_getsockname),
 570    LINXY (__NR_getpeername, sys_getpeername),
 571    LINXY (__NR_socketpair, sys_socketpair),
 572    LINX_ (__NR_setsockopt, sys_setsockopt),
 573    LINXY (__NR_getsockopt, sys_getsockopt),
 574    LINX_ (__NR_clone, sys_clone),
 575    GENX_ (__NR_fork, sys_fork),
 576    GENX_ (__NR_execve, sys_execve),
 577    GENX_ (__NR_exit, sys_exit),
 578    GENXY (__NR_wait4, sys_wait4),
 579    GENX_ (__NR_kill, sys_kill),
 580    GENXY (__NR_uname, sys_newuname),
 581    LINX_ (__NR_semget, sys_semget),
 582    LINX_ (__NR_semop, sys_semop),
 583    LINXY (__NR_semctl, sys_semctl),
 584    LINXY (__NR_shmdt, sys_shmdt),
 585    LINX_ (__NR_msgget, sys_msgget),
 586    LINX_ (__NR_msgsnd, sys_msgsnd),
 587    LINXY (__NR_msgrcv, sys_msgrcv),
 588    LINXY (__NR_msgctl, sys_msgctl),
 589    LINXY (__NR_fcntl, sys_fcntl),
 590    GENX_ (__NR_flock, sys_flock),
 591    GENX_ (__NR_fsync, sys_fsync),
 592    GENX_ (__NR_fdatasync, sys_fdatasync),
 593    GENX_ (__NR_truncate, sys_truncate),
 594    GENX_ (__NR_ftruncate, sys_ftruncate),
 595    GENXY (__NR_getdents, sys_getdents),
 596    GENXY (__NR_getcwd, sys_getcwd),
 597    GENX_ (__NR_chdir, sys_chdir),
 598    GENX_ (__NR_fchdir, sys_fchdir),
 599    GENX_ (__NR_rename, sys_rename),
 600    GENX_ (__NR_mkdir, sys_mkdir),
 601    GENX_ (__NR_rmdir, sys_rmdir),
 602    GENXY (__NR_creat, sys_creat),
 603    GENX_ (__NR_link, sys_link),
 604    GENX_ (__NR_unlink, sys_unlink),
 605    GENX_ (__NR_symlink, sys_symlink),
 606    GENX_ (__NR_readlink, sys_readlink),
 607    GENX_ (__NR_chmod, sys_chmod),
 608    GENX_ (__NR_fchmod, sys_fchmod),
 609    GENX_ (__NR_chown, sys_chown),
 610    GENX_ (__NR_fchown, sys_fchown),
 611    GENX_ (__NR_lchown, sys_lchown),
 612    GENX_ (__NR_umask, sys_umask),
 613    GENXY (__NR_gettimeofday, sys_gettimeofday),
 614    GENXY (__NR_getrlimit, sys_getrlimit),
 615    GENXY (__NR_getrusage, sys_getrusage),
 616    LINXY (__NR_sysinfo, sys_sysinfo),
 617    GENXY (__NR_times, sys_times),
 618    PLAXY (__NR_ptrace, sys_ptrace),
 619    GENX_ (__NR_getuid, sys_getuid),
 620    LINXY (__NR_syslog, sys_syslog),
 621    GENX_ (__NR_getgid, sys_getgid),
 622    GENX_ (__NR_setuid, sys_setuid),
 623    GENX_ (__NR_setgid, sys_setgid),
 624    GENX_ (__NR_geteuid, sys_geteuid),
 625    GENX_ (__NR_getegid, sys_getegid),
 626    GENX_ (__NR_setpgid, sys_setpgid),
 627    GENX_ (__NR_getppid, sys_getppid),
 628    GENX_ (__NR_getpgrp, sys_getpgrp),
 629    GENX_ (__NR_setsid, sys_setsid),
 630    GENX_ (__NR_setreuid, sys_setreuid),
 631    GENX_ (__NR_setregid, sys_setregid),
 632    GENXY (__NR_getgroups, sys_getgroups),
 633    GENX_ (__NR_setgroups, sys_setgroups),
 634    LINX_ (__NR_setresuid, sys_setresuid),
 635    LINXY (__NR_getresuid, sys_getresuid),
 636    LINX_ (__NR_setresgid, sys_setresgid),
 637    LINXY (__NR_getresgid, sys_getresgid),
 638    GENX_ (__NR_getpgid, sys_getpgid),
 639    LINX_ (__NR_setfsuid, sys_setfsuid),
 640    LINX_ (__NR_setfsgid, sys_setfsgid),
 641    GENX_ (__NR_getsid, sys_getsid),
 642    LINXY (__NR_capget, sys_capget),
 643    LINX_ (__NR_capset, sys_capset),
 644    LINXY (__NR_rt_sigpending, sys_rt_sigpending),
 645    LINXY (__NR_rt_sigtimedwait, sys_rt_sigtimedwait),
 646    LINXY (__NR_rt_sigqueueinfo, sys_rt_sigqueueinfo),
 647    LINX_ (__NR_rt_sigsuspend, sys_rt_sigsuspend),
 648    GENXY (__NR_sigaltstack, sys_sigaltstack),
 649    LINX_ (__NR_utime, sys_utime),
 650    GENX_ (__NR_mknod, sys_mknod),
 651    LINX_ (__NR_personality, sys_personality),
 652    PLAX_ (__NR_ustat, sys_ustat),
 653    GENXY (__NR_statfs, sys_statfs),
 654    GENXY (__NR_fstatfs, sys_fstatfs),
 655    PLAX_ (__NR_sysfs, sys_sysfs),
 656    GENX_ (__NR_getpriority, sys_getpriority),
 657    GENX_ (__NR_setpriority, sys_setpriority),
 658    LINXY (__NR_sched_setparam, sys_sched_setparam),
 659    LINXY (__NR_sched_getparam, sys_sched_getparam),
 660    LINX_ (__NR_sched_setscheduler, sys_sched_setscheduler),
 661    LINX_ (__NR_sched_getscheduler, sys_sched_getscheduler),
 662    LINX_ (__NR_sched_get_priority_max, sys_sched_get_priority_max),
 663    LINX_ (__NR_sched_get_priority_min, sys_sched_get_priority_min),
 664    PLAX_ (__NR_sched_rr_get_interval, sys_sched_rr_get_interval),
 665    GENX_ (__NR_mlock, sys_mlock),
 666    GENX_ (__NR_munlock, sys_munlock),
 667    GENX_ (__NR_mlockall, sys_mlockall),
 668    LINX_ (__NR_munlockall, sys_munlockall),
 669    LINX_ (__NR_vhangup, sys_vhangup),
 670    LINX_ (__NR_pivot_root,sys_pivot_root),
 671    LINXY (__NR__sysctl, sys_sysctl),
 672    PLAXY (__NR_prctl, sys_prctl),
 673    LINXY (__NR_adjtimex, sys_adjtimex),
 674    GENX_ (__NR_setrlimit, sys_setrlimit),
 675    GENX_ (__NR_chroot, sys_chroot),
 676    GENX_ (__NR_sync, sys_sync),
 677    GENX_ (__NR_acct, sys_acct),
 678    GENX_ (__NR_settimeofday, sys_settimeofday),
 679    LINX_ (__NR_mount, sys_mount),
 680    LINX_ (__NR_umount2, sys_umount),
 681    PLAX_ (__NR_swapon, sys_swapon),
 682    PLAX_ (__NR_swapoff, sys_swapoff),
 683    PLAX_ (__NR_reboot, sys_reboot),
 684    PLAX_ (__NR_sethostname, sys_sethostname),
 685    PLAX_ (__NR_setdomainname, sys_setdomainname),
 686    GENX_ (__NR_create_module, sys_ni_syscall),
 687    LINX_ (__NR_init_module, sys_init_module),
 688    LINX_ (__NR_delete_module, sys_delete_module),
 689    GENX_ (__NR_get_kernel_syms, sys_ni_syscall),
 690    GENX_ (__NR_query_module, sys_ni_syscall),
 691    LINX_ (__NR_quotactl, sys_quotactl),
 692    /* GENX_(__NR_nfsservctl,sys_nfsservctl), */
 693    GENXY (__NR_getpmsg, sys_getpmsg),
 694    GENX_ (__NR_putpmsg, sys_putpmsg),
 695    GENX_ (__NR_afs_syscall, sys_ni_syscall),
 696    /* GENX_(__NR_reserved177,sys_reserved177), */
 697    LINX_ (__NR_gettid, sys_gettid),
 698    /* GENX_(__NR_readahead,sys_readahead), */
 699    LINX_ (__NR_setxattr, sys_setxattr),
 700    LINX_ (__NR_lsetxattr, sys_lsetxattr),
 701    LINX_ (__NR_fsetxattr, sys_fsetxattr),
 702    LINXY (__NR_getxattr, sys_getxattr),
 703    LINXY (__NR_lgetxattr, sys_lgetxattr),
 704    LINXY (__NR_fgetxattr, sys_fgetxattr),
 705    LINXY (__NR_listxattr, sys_listxattr),
 706    LINXY (__NR_llistxattr, sys_llistxattr),
 707    LINXY (__NR_flistxattr, sys_flistxattr),
 708    LINX_ (__NR_removexattr, sys_removexattr),
 709    LINX_ (__NR_lremovexattr, sys_lremovexattr),
 710    LINX_ (__NR_fremovexattr, sys_fremovexattr),
 711    LINXY (__NR_tkill, sys_tkill),
 712    /* GENX_(__NR_reserved193,sys_reserved193), */
 713    LINXY (__NR_futex, sys_futex),
 714    LINX_ (__NR_sched_setaffinity, sys_sched_setaffinity),
 715    LINXY (__NR_sched_getaffinity, sys_sched_getaffinity),
 716    PLAX_ (__NR_cacheflush, sys_cacheflush),
 717    LINXY (__NR_io_setup, sys_io_setup),
 718    LINX_ (__NR_io_destroy, sys_io_destroy),
 719    LINXY (__NR_io_getevents, sys_io_getevents),
 720    LINX_ (__NR_io_submit, sys_io_submit),
 721    LINXY (__NR_io_cancel, sys_io_cancel),
 722    LINX_ (__NR_exit_group, sys_exit_group),
 723    /* LINXY (__NR_lookup_dcookie, sys_lookup_dcookie), */
 724    LINXY (__NR_epoll_create, sys_epoll_create),
 725    LINXY (__NR_epoll_create1, sys_epoll_create1),
 726    LINX_ (__NR_epoll_ctl, sys_epoll_ctl),
 727    LINXY (__NR_epoll_wait, sys_epoll_wait),
 728    PLAX_(__NR_rt_sigreturn,sys_rt_sigreturn),
 729 #if defined(VGABI_N32)
 730    LINXY(__NR_fcntl64, sys_fcntl64),
 731    GENXY(__NR_statfs64, sys_statfs64),
 732 #endif
 733    LINX_ (__NR_set_tid_address, sys_set_tid_address),
 734    LINX_ (__NR_semtimedop, sys_semtimedop),
 735    PLAX_ (__NR_fadvise64, sys_fadvise64),
 736    LINXY (__NR_timer_create, sys_timer_create),
 737    LINXY (__NR_timer_settime, sys_timer_settime),
 738    LINXY (__NR_timer_gettime, sys_timer_gettime),
 739    LINX_ (__NR_timer_getoverrun, sys_timer_getoverrun),
 740    LINX_ (__NR_timer_delete, sys_timer_delete),
 741    LINX_ (__NR_clock_settime, sys_clock_settime),
 742    LINXY (__NR_clock_gettime, sys_clock_gettime),
 743    LINXY (__NR_clock_getres, sys_clock_getres),
 744    LINXY (__NR_clock_nanosleep, sys_clock_nanosleep),
 745    LINX_ (__NR_tgkill, sys_tgkill),
 746    GENX_ (__NR_utimes, sys_utimes),
 747    LINX_ (__NR_mbind, sys_mbind),
 748    LINXY (__NR_get_mempolicy, sys_get_mempolicy),
 749    LINX_ (__NR_set_mempolicy, sys_set_mempolicy),
 750    LINXY (__NR_mq_open, sys_mq_open),
 751    LINX_ (__NR_mq_unlink, sys_mq_unlink),
 752    LINX_ (__NR_mq_timedsend, sys_mq_timedsend),
 753    LINXY (__NR_mq_timedreceive, sys_mq_timedreceive),
 754    LINX_ (__NR_mq_notify, sys_mq_notify),
 755    LINXY (__NR_mq_getsetattr, sys_mq_getsetattr),
 756    GENX_ (__NR_vserver, sys_ni_syscall),
 757    LINXY (__NR_waitid, sys_waitid),
 758    LINX_ (__NR_add_key, sys_add_key),
 759    LINX_ (__NR_request_key, sys_request_key),
 760    LINXY (__NR_keyctl, sys_keyctl),
 761    PLAX_ (__NR_set_thread_area, sys_set_thread_area),
 762    LINX_ (__NR_inotify_init, sys_inotify_init),
 763    LINX_ (__NR_inotify_add_watch, sys_inotify_add_watch),
 764    LINX_ (__NR_inotify_rm_watch, sys_inotify_rm_watch),
 765    LINXY (__NR_openat, sys_openat),
 766    LINX_ (__NR_mkdirat, sys_mkdirat),
 767    LINX_ (__NR_mknodat, sys_mknodat),
 768    LINX_ (__NR_fchownat, sys_fchownat),
 769    LINX_ (__NR_futimesat, sys_futimesat),
 770    LINX_ (__NR_unlinkat, sys_unlinkat),
 771    LINX_ (__NR_renameat, sys_renameat),
 772    LINX_ (__NR_linkat, sys_linkat),
 773    LINX_ (__NR_symlinkat, sys_symlinkat),
 774    LINX_ (__NR_readlinkat, sys_readlinkat),
 775    LINX_ (__NR_fchmodat, sys_fchmodat),
 776    LINX_ (__NR_faccessat, sys_faccessat),
 777    LINXY (__NR_pselect6, sys_pselect6),
 778    LINXY (__NR_ppoll, sys_ppoll),
 779    LINX_ (__NR_unshare, sys_unshare),
 780    LINX_ (__NR_splice, sys_splice),
 781    LINX_ (__NR_sync_file_range, sys_sync_file_range),
 782    LINX_ (__NR_tee, sys_tee),
 783    PLAX_ (__NR_vmsplice, sys_vmsplice),
 784    LINX_ (__NR_set_robust_list, sys_set_robust_list),
 785    LINXY (__NR_get_robust_list, sys_get_robust_list),
 786    LINXY (__NR_epoll_pwait, sys_epoll_pwait),
 787    LINX_ (__NR_ioprio_set, sys_ioprio_set),
 788    LINX_ (__NR_ioprio_get, sys_ioprio_get),
 789    LINX_ (__NR_utimensat, sys_utimensat),
 790    LINXY (__NR_signalfd, sys_signalfd),
 791    LINXY (__NR_eventfd, sys_eventfd),
 792    LINX_ (__NR_fallocate, sys_fallocate),
 793    LINXY (__NR_timerfd_create, sys_timerfd_create),
 794    LINXY (__NR_timerfd_gettime, sys_timerfd_gettime),
 795    LINXY (__NR_timerfd_settime, sys_timerfd_settime),
 796    LINXY (__NR_newfstatat, sys_newfstatat),
 797    LINXY (__NR_prlimit64, sys_prlimit64),
 798    LINXY (__NR_clock_adjtime, sys_clock_adjtime),
 799    LINXY (__NR_process_vm_readv, sys_process_vm_readv),
 800    LINX_ (__NR_process_vm_writev, sys_process_vm_writev),
 801    LINX_ (__NR_sched_setattr, sys_sched_setattr),
 802    LINXY (__NR_sched_getattr, sys_sched_getattr),
 803    LINX_ (__NR_renameat2, sys_renameat2),
 804    LINXY (__NR_getrandom, sys_getrandom),
 805    LINXY (__NR_memfd_create, sys_memfd_create),
 806    LINX_ (__NR_execveat, sys_execveat),
 807    LINX_ (__NR_membarrier, sys_membarrier),
 808    LINX_ (__NR_copy_file_range, sys_copy_file_range),
 809    LINXY (__NR_preadv, sys_preadv),
 810    LINX_ (__NR_pwritev, sys_pwritev),
 811    LINXY (__NR_preadv2, sys_preadv2),
 812    LINX_ (__NR_pwritev2, sys_pwritev2),
 813    LINX_ (__NR_syncfs, sys_syncfs),
 814    LINXY (__NR_statx, sys_statx),
 815    LINX_ (__NR_setns, sys_setns),
 816    LINXY (__NR_io_uring_setup, sys_io_uring_setup),
 817    LINXY (__NR_io_uring_enter, sys_io_uring_enter),
 818    LINXY (__NR_io_uring_register, sys_io_uring_register),
 819    LINXY (__NR_pidfd_open, sys_pidfd_open),
 820    GENX_ (__NR_clone3, sys_ni_syscall),
 821    LINXY (__NR_close_range, sys_close_range),
 822    LINXY (__NR_openat2, sys_openat2),
 823    LINXY (__NR_pidfd_getfd, sys_pidfd_getfd),
 824    LINX_ (__NR_faccessat2, sys_faccessat2),
 825    LINXY(__NR_epoll_pwait2, sys_epoll_pwait2),
 826 };
 827
 828 SyscallTableEntry * ML_(get_linux_syscall_entry) ( UInt sysno )
 829 {
 830    const UInt syscall_main_table_size
 831       = sizeof(syscall_main_table) / sizeof(syscall_main_table[0]);
 832
 833    if (sysno < syscall_main_table_size) {
 834       SyscallTableEntry * sys = &syscall_main_table[sysno];
 835       if (sys->before == NULL)
 836          return NULL;  /* no entry */
 837       else
 838          return sys;
 839    }
 840    /* Can't find a wrapper */
 841    return NULL;
 842 }
 843
 844 #endif  /* defined(VGP_mips64_linux) */
 845
 846 /*--------------------------------------------------------------------*/
 847 /*--- end                                   syswrap-mips64-linux.c ---*/
 848 /*--------------------------------------------------------------------*/