arch/mips/kernel/scall64-o32.S

   1 /*
   2  * This file is subject to the terms and conditions of the GNU General Public
   3  * License.  See the file "COPYING" in the main directory of this archive
   4  * for more details.
   5  *
   6  * Copyright (C) 1995 - 2000, 2001 by Ralf Baechle
   7  * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
   8  * Copyright (C) 2001 MIPS Technologies, Inc.
   9  * Copyright (C) 2004 Thiemo Seufer
  10  *
  11  * Hairy, the userspace application uses a different argument passing
  12  * convention than the kernel, so we have to translate things from o32
  13  * to ABI64 calling convention.  64-bit syscalls are also processed
  14  * here for now.
  15  */
  16 #include <linux/errno.h>
  17 #include <asm/asm.h>
  18 #include <asm/asmmacro.h>
  19 #include <asm/irqflags.h>
  20 #include <asm/mipsregs.h>
  21 #include <asm/regdef.h>
  22 #include <asm/stackframe.h>
  23 #include <asm/thread_info.h>
  24 #include <asm/unistd.h>
  25 #include <asm/sysmips.h>
  26
  27         .align  5
  28 NESTED(handle_sys, PT_SIZE, sp)
  29         .set    noat
  30         SAVE_SOME
  31         TRACE_IRQS_ON_RELOAD
  32         STI
  33         .set    at
  34         ld      t1, PT_EPC(sp)          # skip syscall on return
  35
  36         dsubu   t0, v0, __NR_O32_Linux  # check syscall number
  37         sltiu   t0, t0, __NR_O32_Linux_syscalls + 1
  38         daddiu  t1, 4                   # skip to next instruction
  39         sd      t1, PT_EPC(sp)
  40         beqz    t0, not_o32_scall
  41 #if 0
  42  SAVE_ALL
  43  move a1, v0
  44  PRINT("Scall %ld\n")
  45  RESTORE_ALL
  46 #endif
  47
  48         /* We don't want to stumble over broken sign extensions from
  49            userland. O32 does never use the upper half. */
  50         sll     a0, a0, 0
  51         sll     a1, a1, 0
  52         sll     a2, a2, 0
  53         sll     a3, a3, 0
  54
  55         sd      a3, PT_R26(sp)          # save a3 for syscall restarting
  56
  57         /*
  58          * More than four arguments.  Try to deal with it by copying the
  59          * stack arguments from the user stack to the kernel stack.
  60          * This Sucks (TM).
  61          *
  62          * We intentionally keep the kernel stack a little below the top of
  63          * userspace so we don't have to do a slower byte accurate check here.
  64          */
  65         ld      t0, PT_R29(sp)          # get old user stack pointer
  66         daddu   t1, t0, 32
  67         bltz    t1, bad_stack
  68
  69 load_a4: lw     a4, 16(t0)              # argument #5 from usp
  70 load_a5: lw     a5, 20(t0)              # argument #6 from usp
  71 load_a6: lw     a6, 24(t0)              # argument #7 from usp
  72 load_a7: lw     a7, 28(t0)              # argument #8 from usp
  73 loads_done:
  74
  75         .section __ex_table,"a"
  76         PTR     load_a4, bad_stack_a4
  77         PTR     load_a5, bad_stack_a5
  78         PTR     load_a6, bad_stack_a6
  79         PTR     load_a7, bad_stack_a7
  80         .previous
  81
  82         li      t1, _TIF_WORK_SYSCALL_ENTRY
  83         LONG_L  t0, TI_FLAGS($28)       # syscall tracing enabled?
  84         and     t0, t1, t0
  85         bnez    t0, trace_a_syscall
  86
  87 syscall_common:
  88         dsll    t0, v0, 3               # offset into table
  89         ld      t2, (sys32_call_table - (__NR_O32_Linux * 8))(t0)
  90
  91         jalr    t2                      # Do The Real Thing (TM)
  92
  93         li      t0, -EMAXERRNO - 1      # error?
  94         sltu    t0, t0, v0
  95         sd      t0, PT_R7(sp)           # set error flag
  96         beqz    t0, 1f
  97
  98         ld      t1, PT_R2(sp)           # syscall number
  99         dnegu   v0                      # error
 100         sd      t1, PT_R0(sp)           # save it for syscall restarting
 101 1:      sd      v0, PT_R2(sp)           # result
 102
 103 o32_syscall_exit:
 104         j       syscall_exit_partial
 105
 106 /* ------------------------------------------------------------------------ */
 107
 108 trace_a_syscall:
 109         SAVE_STATIC
 110         sd      a4, PT_R8(sp)           # Save argument registers
 111         sd      a5, PT_R9(sp)
 112         sd      a6, PT_R10(sp)
 113         sd      a7, PT_R11(sp)          # For indirect syscalls
 114
 115         move    a0, sp
 116         /*
 117          * absolute syscall number is in v0 unless we called syscall(__NR_###)
 118          * where the real syscall number is in a0
 119          * note: NR_syscall is the first O32 syscall but the macro is
 120          * only defined when compiling with -mabi=32 (CONFIG_32BIT)
 121          * therefore __NR_O32_Linux is used (4000)
 122          */
 123         .set    push
 124         .set    reorder
 125         subu    t1, v0,  __NR_O32_Linux
 126         move    a1, v0
 127         bnez    t1, 1f /* __NR_syscall at offset 0 */
 128         lw      a1, PT_R4(sp) /* Arg1 for __NR_syscall case */
 129         .set    pop
 130
 131 1:      jal     syscall_trace_enter
 132
 133         bltz    v0, 1f                  # seccomp failed? Skip syscall
 134
 135         RESTORE_STATIC
 136         ld      v0, PT_R2(sp)           # Restore syscall (maybe modified)
 137         ld      a0, PT_R4(sp)           # Restore argument registers
 138         ld      a1, PT_R5(sp)
 139         ld      a2, PT_R6(sp)
 140         ld      a3, PT_R7(sp)
 141         ld      a4, PT_R8(sp)
 142         ld      a5, PT_R9(sp)
 143         ld      a6, PT_R10(sp)
 144         ld      a7, PT_R11(sp)          # For indirect syscalls
 145
 146         dsubu   t0, v0, __NR_O32_Linux  # check (new) syscall number
 147         sltiu   t0, t0, __NR_O32_Linux_syscalls + 1
 148         beqz    t0, not_o32_scall
 149
 150         j       syscall_common
 151
 152 1:      j       syscall_exit
 153
 154 /* ------------------------------------------------------------------------ */
 155
 156         /*
 157          * The stackpointer for a call with more than 4 arguments is bad.
 158          */
 159 bad_stack:
 160         li      v0, EFAULT
 161         sd      v0, PT_R2(sp)
 162         li      t0, 1                   # set error flag
 163         sd      t0, PT_R7(sp)
 164         j       o32_syscall_exit
 165
 166 bad_stack_a4:
 167         li      a4, 0
 168         b       load_a5
 169
 170 bad_stack_a5:
 171         li      a5, 0
 172         b       load_a6
 173
 174 bad_stack_a6:
 175         li      a6, 0
 176         b       load_a7
 177
 178 bad_stack_a7:
 179         li      a7, 0
 180         b       loads_done
 181
 182 not_o32_scall:
 183         /*
 184          * This is not an o32 compatibility syscall, pass it on
 185          * to the 64-bit syscall handlers.
 186          */
 187 #ifdef CONFIG_MIPS32_N32
 188         j       handle_sysn32
 189 #else
 190         j       handle_sys64
 191 #endif
 192         END(handle_sys)
 193
 194 LEAF(sys32_syscall)
 195         subu    t0, a0, __NR_O32_Linux  # check syscall number
 196         sltiu   v0, t0, __NR_O32_Linux_syscalls + 1
 197         beqz    t0, einval              # do not recurse
 198         dsll    t1, t0, 3
 199         beqz    v0, einval
 200         ld      t2, sys32_call_table(t1)                # syscall routine
 201         sd      a0, PT_R2(sp)           # call routine directly on restart
 202
 203         move    a0, a1                  # shift argument registers
 204         move    a1, a2
 205         move    a2, a3
 206         move    a3, a4
 207         move    a4, a5
 208         move    a5, a6
 209         move    a6, a7
 210         sd      a0, PT_R4(sp)           # ... and push back a0 - a3, some
 211         sd      a1, PT_R5(sp)           # syscalls expect them there
 212         sd      a2, PT_R6(sp)
 213         sd      a3, PT_R7(sp)
 214         sd      a3, PT_R26(sp)          # update a3 for syscall restarting
 215         jr      t2
 216         /* Unreached */
 217
 218 einval: li      v0, -ENOSYS
 219         jr      ra
 220         END(sys32_syscall)
 221
 222         .align  3
 223         .type   sys32_call_table,@object
 224 EXPORT(sys32_call_table)
 225         PTR     sys32_syscall                   /* 4000 */
 226         PTR     sys_exit
 227         PTR     __sys_fork
 228         PTR     sys_read
 229         PTR     sys_write
 230         PTR     compat_sys_open                 /* 4005 */
 231         PTR     sys_close
 232         PTR     sys_waitpid
 233         PTR     sys_creat
 234         PTR     sys_link
 235         PTR     sys_unlink                      /* 4010 */
 236         PTR     compat_sys_execve
 237         PTR     sys_chdir
 238         PTR     compat_sys_time
 239         PTR     sys_mknod
 240         PTR     sys_chmod                       /* 4015 */
 241         PTR     sys_lchown
 242         PTR     sys_ni_syscall
 243         PTR     sys_ni_syscall                  /* was sys_stat */
 244         PTR     sys_lseek
 245         PTR     sys_getpid                      /* 4020 */
 246         PTR     compat_sys_mount
 247         PTR     sys_oldumount
 248         PTR     sys_setuid
 249         PTR     sys_getuid
 250         PTR     compat_sys_stime                /* 4025 */
 251         PTR     compat_sys_ptrace
 252         PTR     sys_alarm
 253         PTR     sys_ni_syscall                  /* was sys_fstat */
 254         PTR     sys_pause
 255         PTR     compat_sys_utime                /* 4030 */
 256         PTR     sys_ni_syscall
 257         PTR     sys_ni_syscall
 258         PTR     sys_access
 259         PTR     sys_nice
 260         PTR     sys_ni_syscall                  /* 4035 */
 261         PTR     sys_sync
 262         PTR     sys_kill
 263         PTR     sys_rename
 264         PTR     sys_mkdir
 265         PTR     sys_rmdir                       /* 4040 */
 266         PTR     sys_dup
 267         PTR     sysm_pipe
 268         PTR     compat_sys_times
 269         PTR     sys_ni_syscall
 270         PTR     sys_brk                         /* 4045 */
 271         PTR     sys_setgid
 272         PTR     sys_getgid
 273         PTR     sys_ni_syscall                  /* was signal   2 */
 274         PTR     sys_geteuid
 275         PTR     sys_getegid                     /* 4050 */
 276         PTR     sys_acct
 277         PTR     sys_umount
 278         PTR     sys_ni_syscall
 279         PTR     compat_sys_ioctl
 280         PTR     compat_sys_fcntl                /* 4055 */
 281         PTR     sys_ni_syscall
 282         PTR     sys_setpgid
 283         PTR     sys_ni_syscall
 284         PTR     sys_olduname
 285         PTR     sys_umask                       /* 4060 */
 286         PTR     sys_chroot
 287         PTR     compat_sys_ustat
 288         PTR     sys_dup2
 289         PTR     sys_getppid
 290         PTR     sys_getpgrp                     /* 4065 */
 291         PTR     sys_setsid
 292         PTR     sys_32_sigaction
 293         PTR     sys_sgetmask
 294         PTR     sys_ssetmask
 295         PTR     sys_setreuid                    /* 4070 */
 296         PTR     sys_setregid
 297         PTR     sys32_sigsuspend
 298         PTR     compat_sys_sigpending
 299         PTR     sys_sethostname
 300         PTR     compat_sys_setrlimit            /* 4075 */
 301         PTR     compat_sys_getrlimit
 302         PTR     compat_sys_getrusage
 303         PTR     compat_sys_gettimeofday
 304         PTR     compat_sys_settimeofday
 305         PTR     sys_getgroups                   /* 4080 */
 306         PTR     sys_setgroups
 307         PTR     sys_ni_syscall                  /* old_select */
 308         PTR     sys_symlink
 309         PTR     sys_ni_syscall                  /* was sys_lstat */
 310         PTR     sys_readlink                    /* 4085 */
 311         PTR     sys_uselib
 312         PTR     sys_swapon
 313         PTR     sys_reboot
 314         PTR     compat_sys_old_readdir
 315         PTR     sys_mips_mmap                   /* 4090 */
 316         PTR     sys_munmap
 317         PTR     compat_sys_truncate
 318         PTR     compat_sys_ftruncate
 319         PTR     sys_fchmod
 320         PTR     sys_fchown                      /* 4095 */
 321         PTR     sys_getpriority
 322         PTR     sys_setpriority
 323         PTR     sys_ni_syscall
 324         PTR     compat_sys_statfs
 325         PTR     compat_sys_fstatfs              /* 4100 */
 326         PTR     sys_ni_syscall                  /* sys_ioperm */
 327         PTR     compat_sys_socketcall
 328         PTR     sys_syslog
 329         PTR     compat_sys_setitimer
 330         PTR     compat_sys_getitimer            /* 4105 */
 331         PTR     compat_sys_newstat
 332         PTR     compat_sys_newlstat
 333         PTR     compat_sys_newfstat
 334         PTR     sys_uname
 335         PTR     sys_ni_syscall                  /* sys_ioperm  *//* 4110 */
 336         PTR     sys_vhangup
 337         PTR     sys_ni_syscall                  /* was sys_idle  */
 338         PTR     sys_ni_syscall                  /* sys_vm86 */
 339         PTR     compat_sys_wait4
 340         PTR     sys_swapoff                     /* 4115 */
 341         PTR     compat_sys_sysinfo
 342         PTR     compat_sys_ipc
 343         PTR     sys_fsync
 344         PTR     sys32_sigreturn
 345         PTR     __sys_clone                     /* 4120 */
 346         PTR     sys_setdomainname
 347         PTR     sys_newuname
 348         PTR     sys_ni_syscall                  /* sys_modify_ldt */
 349         PTR     compat_sys_adjtimex
 350         PTR     sys_mprotect                    /* 4125 */
 351         PTR     compat_sys_sigprocmask
 352         PTR     sys_ni_syscall                  /* was creat_module */
 353         PTR     sys_init_module
 354         PTR     sys_delete_module
 355         PTR     sys_ni_syscall                  /* 4130, get_kernel_syms */
 356         PTR     sys_quotactl
 357         PTR     sys_getpgid
 358         PTR     sys_fchdir
 359         PTR     sys_bdflush
 360         PTR     sys_sysfs                       /* 4135 */
 361         PTR     sys_32_personality
 362         PTR     sys_ni_syscall                  /* for afs_syscall */
 363         PTR     sys_setfsuid
 364         PTR     sys_setfsgid
 365         PTR     sys_32_llseek                   /* 4140 */
 366         PTR     compat_sys_getdents
 367         PTR     compat_sys_select
 368         PTR     sys_flock
 369         PTR     sys_msync
 370         PTR     compat_sys_readv                /* 4145 */
 371         PTR     compat_sys_writev
 372         PTR     sys_cacheflush
 373         PTR     sys_cachectl
 374         PTR     sys_sysmips
 375         PTR     sys_ni_syscall                  /* 4150 */
 376         PTR     sys_getsid
 377         PTR     sys_fdatasync
 378         PTR     compat_sys_sysctl
 379         PTR     sys_mlock
 380         PTR     sys_munlock                     /* 4155 */
 381         PTR     sys_mlockall
 382         PTR     sys_munlockall
 383         PTR     sys_sched_setparam
 384         PTR     sys_sched_getparam
 385         PTR     sys_sched_setscheduler          /* 4160 */
 386         PTR     sys_sched_getscheduler
 387         PTR     sys_sched_yield
 388         PTR     sys_sched_get_priority_max
 389         PTR     sys_sched_get_priority_min
 390         PTR     compat_sys_sched_rr_get_interval        /* 4165 */
 391         PTR     compat_sys_nanosleep
 392         PTR     sys_mremap
 393         PTR     sys_accept
 394         PTR     sys_bind
 395         PTR     sys_connect                     /* 4170 */
 396         PTR     sys_getpeername
 397         PTR     sys_getsockname
 398         PTR     compat_sys_getsockopt
 399         PTR     sys_listen
 400         PTR     compat_sys_recv                 /* 4175 */
 401         PTR     compat_sys_recvfrom
 402         PTR     compat_sys_recvmsg
 403         PTR     sys_send
 404         PTR     compat_sys_sendmsg
 405         PTR     sys_sendto                      /* 4180 */
 406         PTR     compat_sys_setsockopt
 407         PTR     sys_shutdown
 408         PTR     sys_socket
 409         PTR     sys_socketpair
 410         PTR     sys_setresuid                   /* 4185 */
 411         PTR     sys_getresuid
 412         PTR     sys_ni_syscall                  /* was query_module */
 413         PTR     sys_poll
 414         PTR     sys_ni_syscall                  /* was nfsservctl */
 415         PTR     sys_setresgid                   /* 4190 */
 416         PTR     sys_getresgid
 417         PTR     sys_prctl
 418         PTR     sys32_rt_sigreturn
 419         PTR     compat_sys_rt_sigaction
 420         PTR     compat_sys_rt_sigprocmask       /* 4195 */
 421         PTR     compat_sys_rt_sigpending
 422         PTR     compat_sys_rt_sigtimedwait
 423         PTR     compat_sys_rt_sigqueueinfo
 424         PTR     compat_sys_rt_sigsuspend
 425         PTR     sys_32_pread                    /* 4200 */
 426         PTR     sys_32_pwrite
 427         PTR     sys_chown
 428         PTR     sys_getcwd
 429         PTR     sys_capget
 430         PTR     sys_capset                      /* 4205 */
 431         PTR     compat_sys_sigaltstack
 432         PTR     compat_sys_sendfile
 433         PTR     sys_ni_syscall
 434         PTR     sys_ni_syscall
 435         PTR     sys_mips_mmap2                  /* 4210 */
 436         PTR     sys_32_truncate64
 437         PTR     sys_32_ftruncate64
 438         PTR     sys_newstat
 439         PTR     sys_newlstat
 440         PTR     sys_newfstat                    /* 4215 */
 441         PTR     sys_pivot_root
 442         PTR     sys_mincore
 443         PTR     sys_madvise
 444         PTR     sys_getdents64
 445         PTR     compat_sys_fcntl64              /* 4220 */
 446         PTR     sys_ni_syscall
 447         PTR     sys_gettid
 448         PTR     sys32_readahead
 449         PTR     sys_setxattr
 450         PTR     sys_lsetxattr                   /* 4225 */
 451         PTR     sys_fsetxattr
 452         PTR     sys_getxattr
 453         PTR     sys_lgetxattr
 454         PTR     sys_fgetxattr
 455         PTR     sys_listxattr                   /* 4230 */
 456         PTR     sys_llistxattr
 457         PTR     sys_flistxattr
 458         PTR     sys_removexattr
 459         PTR     sys_lremovexattr
 460         PTR     sys_fremovexattr                /* 4235 */
 461         PTR     sys_tkill
 462         PTR     sys_sendfile64
 463         PTR     compat_sys_futex
 464         PTR     compat_sys_sched_setaffinity
 465         PTR     compat_sys_sched_getaffinity    /* 4240 */
 466         PTR     compat_sys_io_setup
 467         PTR     sys_io_destroy
 468         PTR     compat_sys_io_getevents
 469         PTR     compat_sys_io_submit
 470         PTR     sys_io_cancel                   /* 4245 */
 471         PTR     sys_exit_group
 472         PTR     compat_sys_lookup_dcookie
 473         PTR     sys_epoll_create
 474         PTR     sys_epoll_ctl
 475         PTR     sys_epoll_wait                  /* 4250 */
 476         PTR     sys_remap_file_pages
 477         PTR     sys_set_tid_address
 478         PTR     sys_restart_syscall
 479         PTR     sys32_fadvise64_64
 480         PTR     compat_sys_statfs64             /* 4255 */
 481         PTR     compat_sys_fstatfs64
 482         PTR     compat_sys_timer_create
 483         PTR     compat_sys_timer_settime
 484         PTR     compat_sys_timer_gettime
 485         PTR     sys_timer_getoverrun            /* 4260 */
 486         PTR     sys_timer_delete
 487         PTR     compat_sys_clock_settime
 488         PTR     compat_sys_clock_gettime
 489         PTR     compat_sys_clock_getres
 490         PTR     compat_sys_clock_nanosleep      /* 4265 */
 491         PTR     sys_tgkill
 492         PTR     compat_sys_utimes
 493         PTR     compat_sys_mbind
 494         PTR     compat_sys_get_mempolicy
 495         PTR     compat_sys_set_mempolicy        /* 4270 */
 496         PTR     compat_sys_mq_open
 497         PTR     sys_mq_unlink
 498         PTR     compat_sys_mq_timedsend
 499         PTR     compat_sys_mq_timedreceive
 500         PTR     compat_sys_mq_notify            /* 4275 */
 501         PTR     compat_sys_mq_getsetattr
 502         PTR     sys_ni_syscall                  /* sys_vserver */
 503         PTR     compat_sys_waitid
 504         PTR     sys_ni_syscall                  /* available, was setaltroot */
 505         PTR     sys_add_key                     /* 4280 */
 506         PTR     sys_request_key
 507         PTR     compat_sys_keyctl
 508         PTR     sys_set_thread_area
 509         PTR     sys_inotify_init
 510         PTR     sys_inotify_add_watch           /* 4285 */
 511         PTR     sys_inotify_rm_watch
 512         PTR     compat_sys_migrate_pages
 513         PTR     compat_sys_openat
 514         PTR     sys_mkdirat
 515         PTR     sys_mknodat                     /* 4290 */
 516         PTR     sys_fchownat
 517         PTR     compat_sys_futimesat
 518         PTR     sys_newfstatat
 519         PTR     sys_unlinkat
 520         PTR     sys_renameat                    /* 4295 */
 521         PTR     sys_linkat
 522         PTR     sys_symlinkat
 523         PTR     sys_readlinkat
 524         PTR     sys_fchmodat
 525         PTR     sys_faccessat                   /* 4300 */
 526         PTR     compat_sys_pselect6
 527         PTR     compat_sys_ppoll
 528         PTR     sys_unshare
 529         PTR     sys_splice
 530         PTR     sys32_sync_file_range           /* 4305 */
 531         PTR     sys_tee
 532         PTR     compat_sys_vmsplice
 533         PTR     compat_sys_move_pages
 534         PTR     compat_sys_set_robust_list
 535         PTR     compat_sys_get_robust_list      /* 4310 */
 536         PTR     compat_sys_kexec_load
 537         PTR     sys_getcpu
 538         PTR     compat_sys_epoll_pwait
 539         PTR     sys_ioprio_set
 540         PTR     sys_ioprio_get                  /* 4315 */
 541         PTR     compat_sys_utimensat
 542         PTR     compat_sys_signalfd
 543         PTR     sys_ni_syscall                  /* was timerfd */
 544         PTR     sys_eventfd
 545         PTR     sys32_fallocate                 /* 4320 */
 546         PTR     sys_timerfd_create
 547         PTR     compat_sys_timerfd_gettime
 548         PTR     compat_sys_timerfd_settime
 549         PTR     compat_sys_signalfd4
 550         PTR     sys_eventfd2                    /* 4325 */
 551         PTR     sys_epoll_create1
 552         PTR     sys_dup3
 553         PTR     sys_pipe2
 554         PTR     sys_inotify_init1
 555         PTR     compat_sys_preadv               /* 4330 */
 556         PTR     compat_sys_pwritev
 557         PTR     compat_sys_rt_tgsigqueueinfo
 558         PTR     sys_perf_event_open
 559         PTR     sys_accept4
 560         PTR     compat_sys_recvmmsg             /* 4335 */
 561         PTR     sys_fanotify_init
 562         PTR     compat_sys_fanotify_mark
 563         PTR     sys_prlimit64
 564         PTR     sys_name_to_handle_at
 565         PTR     compat_sys_open_by_handle_at    /* 4340 */
 566         PTR     compat_sys_clock_adjtime
 567         PTR     sys_syncfs
 568         PTR     compat_sys_sendmmsg
 569         PTR     sys_setns
 570         PTR     compat_sys_process_vm_readv     /* 4345 */
 571         PTR     compat_sys_process_vm_writev
 572         PTR     sys_kcmp
 573         PTR     sys_finit_module
 574         PTR     sys_sched_setattr
 575         PTR     sys_sched_getattr               /* 4350 */
 576         PTR     sys_renameat2
 577         PTR     sys_seccomp
 578         PTR     sys_getrandom
 579         PTR     sys_memfd_create
 580         PTR     sys_bpf                         /* 4355 */
 581         PTR     compat_sys_execveat
 582         PTR     sys_userfaultfd
 583         PTR     sys_membarrier
 584         PTR     sys_mlock2
 585         PTR     sys_copy_file_range             /* 4360 */
 586         PTR     compat_sys_preadv2
 587         PTR     compat_sys_pwritev2
 588         PTR     sys_pkey_mprotect
 589         PTR     sys_pkey_alloc
 590         PTR     sys_pkey_free                   /* 4365 */
 591         PTR     sys_statx
 592         .size   sys32_call_table,.-sys32_call_table