| blob | 222152a3f75195b429a6794e036c279cdb2e6160 |
1 ###############################################################################
2 #
3 # MN10300 Exception and interrupt entry points
4 #
5 # Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
6 # Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
7 # Modified by David Howells (dhowells@redhat.com)
8 #
9 # This program is free software; you can redistribute it and/or
10 # modify it under the terms of the GNU General Public Licence
11 # as published by the Free Software Foundation; either version
12 # 2 of the Licence, or (at your option) any later version.
13 #
14 ###############################################################################
15 #include <linux/sys.h>
16 #include <linux/linkage.h>
17 #include <asm/smp.h>
18 #include <asm/irqflags.h>
19 #include <asm/thread_info.h>
20 #include <asm/intctl-regs.h>
21 #include <asm/busctl-regs.h>
22 #include <asm/timer-regs.h>
23 #include <unit/leds.h>
24 #include <asm/page.h>
25 #include <asm/pgtable.h>
26 #include <asm/errno.h>
27 #include <asm/asm-offsets.h>
28 #include <asm/frame.inc>
30 #if defined(CONFIG_SMP) && defined(CONFIG_GDBSTUB)
31 #include <asm/gdb-stub.h>
32 #endif /* CONFIG_SMP && CONFIG_GDBSTUB */
34 #ifdef CONFIG_PREEMPT
35 #define preempt_stop LOCAL_IRQ_DISABLE
36 #else
37 #define preempt_stop
38 #define resume_kernel restore_all
39 #endif
41 .am33_2
43 ###############################################################################
44 #
45 # the return path for a forked child
46 # - on entry, D0 holds the address of the previous task to run
47 #
48 ###############################################################################
49 ENTRY(ret_from_fork)
50 call schedule_tail[],0
51 GET_THREAD_INFO a2
53 # return 0 to indicate child process
54 clr d0
55 mov d0,(REG_D0,fp)
56 jmp syscall_exit
58 ENTRY(ret_from_kernel_thread)
59 call schedule_tail[],0
60 mov (REG_D0,fp),d0
61 mov (REG_A0,fp),a0
62 calls (a0)
63 GET_THREAD_INFO a2 # A2 must be set on return from sys_exit()
64 clr d0
65 mov d0,(REG_D0,fp)
66 jmp syscall_exit
68 ###############################################################################
69 #
70 # system call handler
71 #
72 ###############################################################################
73 ENTRY(system_call)
74 add -4,sp
75 SAVE_ALL
76 mov d0,(REG_ORIG_D0,fp)
77 GET_THREAD_INFO a2
78 cmp nr_syscalls,d0
79 bcc syscall_badsys
80 btst _TIF_SYSCALL_TRACE,(TI_flags,a2)
81 bne syscall_entry_trace
82 syscall_call:
83 add d0,d0,a1
84 add a1,a1
85 mov (REG_A0,fp),d0
86 mov (sys_call_table,a1),a0
87 calls (a0)
88 mov d0,(REG_D0,fp)
89 syscall_exit:
90 # make sure we don't miss an interrupt setting need_resched or
91 # sigpending between sampling and the rti
92 LOCAL_IRQ_DISABLE
93 mov (TI_flags,a2),d2
94 btst _TIF_ALLWORK_MASK,d2
95 bne syscall_exit_work
96 restore_all:
97 RESTORE_ALL
99 ###############################################################################
100 #
101 # perform work that needs to be done immediately before resumption and syscall
102 # tracing
103 #
104 ###############################################################################
105 ALIGN
106 syscall_exit_work:
107 mov (REG_EPSW,fp),d0
108 and EPSW_nSL,d0
109 beq resume_kernel # returning to supervisor mode
111 LOCAL_IRQ_ENABLE # could let syscall_trace_exit() call
112 # schedule() instead
113 btst _TIF_SYSCALL_TRACE,d2
114 beq work_pending
115 mov fp,d0
116 call syscall_trace_exit[],0 # do_syscall_trace(regs)
117 jmp resume_userspace
119 ALIGN
120 work_pending:
121 btst _TIF_NEED_RESCHED,d2
122 beq work_notifysig
124 work_resched:
125 call schedule[],0
127 resume_userspace:
128 # make sure we don't miss an interrupt setting need_resched or
129 # sigpending between sampling and the rti
130 LOCAL_IRQ_DISABLE
132 # is there any work to be done other than syscall tracing?
133 mov (TI_flags,a2),d2
134 btst _TIF_WORK_MASK,d2
135 beq restore_all
137 LOCAL_IRQ_ENABLE
138 btst _TIF_NEED_RESCHED,d2
139 bne work_resched
141 # deal with pending signals and notify-resume requests
142 work_notifysig:
143 mov fp,d0
144 mov d2,d1
145 call do_notify_resume[],0
146 jmp resume_userspace
148 # perform syscall entry tracing
149 syscall_entry_trace:
150 mov -ENOSYS,d0
151 mov d0,(REG_D0,fp)
152 mov fp,d0
153 call syscall_trace_entry[],0 # returns the syscall number to actually use
154 mov (REG_D1,fp),d1
155 cmp nr_syscalls,d0
156 bcs syscall_call
157 jmp syscall_exit
159 syscall_badsys:
160 mov -ENOSYS,d0
161 mov d0,(REG_D0,fp)
162 jmp resume_userspace
164 # userspace resumption stub bypassing syscall exit tracing
165 .globl ret_from_exception, ret_from_intr
166 ALIGN
167 ret_from_exception:
168 preempt_stop
169 ret_from_intr:
170 GET_THREAD_INFO a2
171 mov (REG_EPSW,fp),d0 # need to deliver signals before
172 # returning to userspace
173 and EPSW_nSL,d0
174 beq resume_kernel # returning to supervisor mode
176 #ifdef CONFIG_PREEMPT
177 ENTRY(resume_kernel)
178 LOCAL_IRQ_DISABLE
179 mov (TI_preempt_count,a2),d0 # non-zero preempt_count ?
180 cmp 0,d0
181 bne restore_all
183 need_resched:
184 btst _TIF_NEED_RESCHED,(TI_flags,a2)
185 beq restore_all
186 mov (REG_EPSW,fp),d0
187 and EPSW_IM,d0
188 cmp EPSW_IM_7,d0 # interrupts off (exception path) ?
189 bne restore_all
190 call preempt_schedule_irq[],0
191 jmp need_resched
192 #endif
195 ###############################################################################
196 #
197 # IRQ handler entry point
198 # - intended to be entered at multiple priorities
199 #
200 ###############################################################################
201 ENTRY(irq_handler)
202 add -4,sp
203 SAVE_ALL
205 # it's not a syscall
206 mov 0xffffffff,d0
207 mov d0,(REG_ORIG_D0,fp)
209 mov fp,d0
210 call do_IRQ[],0 # do_IRQ(regs)
212 jmp ret_from_intr
214 ###############################################################################
215 #
216 # Double Fault handler entry point
217 # - note that there will not be a stack, D0/A0 will hold EPSW/PC as were
218 #
219 ###############################################################################
220 .section .bss
221 .balign THREAD_SIZE
222 .space THREAD_SIZE
223 __df_stack:
224 .previous
226 ENTRY(double_fault)
227 mov a0,(__df_stack-4) # PC as was
228 mov d0,(__df_stack-8) # EPSW as was
229 mn10300_set_dbfleds # display 'db-f' on the LEDs
230 mov 0xaa55aa55,d0
231 mov d0,(__df_stack-12) # no ORIG_D0
232 mov sp,a0 # save corrupted SP
233 mov __df_stack-12,sp # emergency supervisor stack
234 SAVE_ALL
235 mov a0,(REG_A0,fp) # save corrupted SP as A0 (which got
236 # clobbered by the CPU)
237 mov fp,d0
238 calls do_double_fault
239 double_fault_loop:
240 bra double_fault_loop
242 ###############################################################################
243 #
244 # Bus Error handler entry point
245 # - handle external (async) bus errors separately
246 #
247 ###############################################################################
248 ENTRY(raw_bus_error)
249 add -4,sp
250 mov d0,(sp)
251 #if defined(CONFIG_ERRATUM_NEED_TO_RELOAD_MMUCTR)
252 mov (MMUCTR),d0
253 mov d0,(MMUCTR)
254 #endif
255 mov (BCBERR),d0 # what
256 btst BCBERR_BEMR_DMA,d0 # see if it was an external bus error
257 beq __common_exception_aux # it wasn't
259 SAVE_ALL
260 mov (BCBEAR),d1 # destination of erroneous access
262 mov (REG_ORIG_D0,fp),d2
263 mov d2,(REG_D0,fp)
264 mov -1,d2
265 mov d2,(REG_ORIG_D0,fp)
267 add -4,sp
268 mov fp,(12,sp) # frame pointer
269 call io_bus_error[],0
270 jmp restore_all
272 ###############################################################################
273 #
274 # NMI exception entry points
275 #
276 # This is used by ordinary interrupt channels that have the GxICR_NMI bit set
277 # in addition to the main NMI and Watchdog channels. SMP NMI IPIs use this
278 # facility.
279 #
280 ###############################################################################
281 ENTRY(nmi_handler)
282 add -4,sp
283 mov d0,(sp)
284 mov (TBR),d0
286 #ifdef CONFIG_SMP
287 add -4,sp
288 mov d0,(sp) # save d0(TBR)
289 movhu (NMIAGR),d0
290 and NMIAGR_GN,d0
291 lsr 0x2,d0
292 cmp CALL_FUNCTION_NMI_IPI,d0
293 bne nmi_not_smp_callfunc # if not call function, jump
295 # function call nmi ipi
296 add 4,sp # no need to store TBR
297 mov GxICR_DETECT,d0 # clear NMI request
298 movbu d0,(GxICR(CALL_FUNCTION_NMI_IPI))
299 movhu (GxICR(CALL_FUNCTION_NMI_IPI)),d0
300 and ~EPSW_NMID,epsw # enable NMI
302 mov (sp),d0 # restore d0
303 SAVE_ALL
304 call smp_nmi_call_function_interrupt[],0
305 RESTORE_ALL
307 nmi_not_smp_callfunc:
308 #ifdef CONFIG_KERNEL_DEBUGGER
309 cmp DEBUGGER_NMI_IPI,d0
310 bne nmi_not_debugger # if not kernel debugger NMI IPI, jump
312 # kernel debugger NMI IPI
313 add 4,sp # no need to store TBR
314 mov GxICR_DETECT,d0 # clear NMI
315 movbu d0,(GxICR(DEBUGGER_NMI_IPI))
316 movhu (GxICR(DEBUGGER_NMI_IPI)),d0
317 and ~EPSW_NMID,epsw # enable NMI
319 mov (sp),d0
320 SAVE_ALL
321 mov fp,d0 # arg 0: stacked register file
322 mov a2,d1 # arg 1: exception number
323 call debugger_nmi_interrupt[],0
324 RESTORE_ALL
326 nmi_not_debugger:
327 #endif /* CONFIG_KERNEL_DEBUGGER */
328 mov (sp),d0 # restore TBR to d0
329 add 4,sp
330 #endif /* CONFIG_SMP */
332 bra __common_exception_nonmi
334 ###############################################################################
335 #
336 # General exception entry point
337 #
338 ###############################################################################
339 ENTRY(__common_exception)
340 add -4,sp
341 mov d0,(sp)
342 #if defined(CONFIG_ERRATUM_NEED_TO_RELOAD_MMUCTR)
343 mov (MMUCTR),d0
344 mov d0,(MMUCTR)
345 #endif
347 __common_exception_aux:
348 mov (TBR),d0
349 and ~EPSW_NMID,epsw # turn NMIs back on if not NMI
350 or EPSW_IE,epsw
352 __common_exception_nonmi:
353 and 0x0000FFFF,d0 # turn the exception code into a vector
354 # table index
356 btst 0x00000007,d0
357 bne 1f
358 cmp 0x00000400,d0
359 bge 1f
361 SAVE_ALL # build the stack frame
363 mov (REG_D0,fp),a2 # get the exception number
364 mov (REG_ORIG_D0,fp),d0
365 mov d0,(REG_D0,fp)
366 mov -1,d0
367 mov d0,(REG_ORIG_D0,fp)
369 #ifdef CONFIG_GDBSTUB
370 #ifdef CONFIG_SMP
371 call gdbstub_busy_check[],0
372 and d0,d0 # check return value
373 beq 2f
374 #else /* CONFIG_SMP */
375 btst 0x01,(gdbstub_busy)
376 beq 2f
377 #endif /* CONFIG_SMP */
378 and ~EPSW_IE,epsw
379 mov fp,d0
380 mov a2,d1
381 call gdbstub_exception[],0 # gdbstub itself caused an exception
382 bra restore_all
383 2:
384 #endif /* CONFIG_GDBSTUB */
386 mov fp,d0 # arg 0: stacked register file
387 mov a2,d1 # arg 1: exception number
388 lsr 1,a2
390 mov (exception_table,a2),a2
391 calls (a2)
392 jmp ret_from_exception
394 1: pi # BUG() equivalent
396 ###############################################################################
397 #
398 # Exception handler functions table
399 #
400 ###############################################################################
401 .data
402 ENTRY(exception_table)
403 .rept 0x400>>1
404 .long uninitialised_exception
405 .endr
406 .previous
408 ###############################################################################
409 #
410 # Change an entry in the exception table
411 # - D0 exception code, D1 handler
412 #
413 ###############################################################################
414 ENTRY(set_excp_vector)
415 lsr 1,d0
416 add exception_table,d0
417 mov d1,(d0)
418 mov 4,d1
419 ret [],0
421 ###############################################################################
422 #
423 # System call table
424 #
425 ###############################################################################
426 .data
427 ENTRY(sys_call_table)
428 .long sys_restart_syscall /* 0 */
429 .long sys_exit
430 .long sys_fork
431 .long sys_read
432 .long sys_write
433 .long sys_open /* 5 */
434 .long sys_close
435 .long sys_waitpid
436 .long sys_creat
437 .long sys_link
438 .long sys_unlink /* 10 */
439 .long sys_execve
440 .long sys_chdir
441 .long sys_time
442 .long sys_mknod
443 .long sys_chmod /* 15 */
444 .long sys_lchown16
445 .long sys_ni_syscall /* old break syscall holder */
446 .long sys_stat
447 .long sys_lseek
448 .long sys_getpid /* 20 */
449 .long sys_mount
450 .long sys_oldumount
451 .long sys_setuid16
452 .long sys_getuid16
453 .long sys_stime /* 25 */
454 .long sys_ptrace
455 .long sys_alarm
456 .long sys_fstat
457 .long sys_pause
458 .long sys_utime /* 30 */
459 .long sys_ni_syscall /* old stty syscall holder */
460 .long sys_ni_syscall /* old gtty syscall holder */
461 .long sys_access
462 .long sys_nice
463 .long sys_ni_syscall /* 35 - old ftime syscall holder */
464 .long sys_sync
465 .long sys_kill
466 .long sys_rename
467 .long sys_mkdir
468 .long sys_rmdir /* 40 */
469 .long sys_dup
470 .long sys_pipe
471 .long sys_times
472 .long sys_ni_syscall /* old prof syscall holder */
473 .long sys_brk /* 45 */
474 .long sys_setgid16
475 .long sys_getgid16
476 .long sys_signal
477 .long sys_geteuid16
478 .long sys_getegid16 /* 50 */
479 .long sys_acct
480 .long sys_umount /* recycled never used phys() */
481 .long sys_ni_syscall /* old lock syscall holder */
482 .long sys_ioctl
483 .long sys_fcntl /* 55 */
484 .long sys_ni_syscall /* old mpx syscall holder */
485 .long sys_setpgid
486 .long sys_ni_syscall /* old ulimit syscall holder */
487 .long sys_ni_syscall /* old sys_olduname */
488 .long sys_umask /* 60 */
489 .long sys_chroot
490 .long sys_ustat
491 .long sys_dup2
492 .long sys_getppid
493 .long sys_getpgrp /* 65 */
494 .long sys_setsid
495 .long sys_sigaction
496 .long sys_sgetmask
497 .long sys_ssetmask
498 .long sys_setreuid16 /* 70 */
499 .long sys_setregid16
500 .long sys_sigsuspend
501 .long sys_sigpending
502 .long sys_sethostname
503 .long sys_setrlimit /* 75 */
504 .long sys_old_getrlimit
505 .long sys_getrusage
506 .long sys_gettimeofday
507 .long sys_settimeofday
508 .long sys_getgroups16 /* 80 */
509 .long sys_setgroups16
510 .long sys_old_select
511 .long sys_symlink
512 .long sys_lstat
513 .long sys_readlink /* 85 */
514 .long sys_uselib
515 .long sys_swapon
516 .long sys_reboot
517 .long sys_old_readdir
518 .long old_mmap /* 90 */
519 .long sys_munmap
520 .long sys_truncate
521 .long sys_ftruncate
522 .long sys_fchmod
523 .long sys_fchown16 /* 95 */
524 .long sys_getpriority
525 .long sys_setpriority
526 .long sys_ni_syscall /* old profil syscall holder */
527 .long sys_statfs
528 .long sys_fstatfs /* 100 */
529 .long sys_ni_syscall /* ioperm */
530 .long sys_socketcall
531 .long sys_syslog
532 .long sys_setitimer
533 .long sys_getitimer /* 105 */
534 .long sys_newstat
535 .long sys_newlstat
536 .long sys_newfstat
537 .long sys_ni_syscall /* old sys_uname */
538 .long sys_ni_syscall /* 110 - iopl */
539 .long sys_vhangup
540 .long sys_ni_syscall /* old "idle" system call */
541 .long sys_ni_syscall /* vm86old */
542 .long sys_wait4
543 .long sys_swapoff /* 115 */
544 .long sys_sysinfo
545 .long sys_ipc
546 .long sys_fsync
547 .long sys_sigreturn
548 .long sys_clone /* 120 */
549 .long sys_setdomainname
550 .long sys_newuname
551 .long sys_ni_syscall /* modify_ldt */
552 .long sys_adjtimex
553 .long sys_mprotect /* 125 */
554 .long sys_sigprocmask
555 .long sys_ni_syscall /* old "create_module" */
556 .long sys_init_module
557 .long sys_delete_module
558 .long sys_ni_syscall /* 130: old "get_kernel_syms" */
559 .long sys_quotactl
560 .long sys_getpgid
561 .long sys_fchdir
562 .long sys_bdflush
563 .long sys_sysfs /* 135 */
564 .long sys_personality
565 .long sys_ni_syscall /* reserved for afs_syscall */
566 .long sys_setfsuid16
567 .long sys_setfsgid16
568 .long sys_llseek /* 140 */
569 .long sys_getdents
570 .long sys_select
571 .long sys_flock
572 .long sys_msync
573 .long sys_readv /* 145 */
574 .long sys_writev
575 .long sys_getsid
576 .long sys_fdatasync
577 .long sys_sysctl
578 .long sys_mlock /* 150 */
579 .long sys_munlock
580 .long sys_mlockall
581 .long sys_munlockall
582 .long sys_sched_setparam
583 .long sys_sched_getparam /* 155 */
584 .long sys_sched_setscheduler
585 .long sys_sched_getscheduler
586 .long sys_sched_yield
587 .long sys_sched_get_priority_max
588 .long sys_sched_get_priority_min /* 160 */
589 .long sys_sched_rr_get_interval
590 .long sys_nanosleep
591 .long sys_mremap
592 .long sys_setresuid16
593 .long sys_getresuid16 /* 165 */
594 .long sys_ni_syscall /* vm86 */
595 .long sys_ni_syscall /* Old sys_query_module */
596 .long sys_poll
597 .long sys_ni_syscall /* was nfsservctl */
598 .long sys_setresgid16 /* 170 */
599 .long sys_getresgid16
600 .long sys_prctl
601 .long sys_rt_sigreturn
602 .long sys_rt_sigaction
603 .long sys_rt_sigprocmask /* 175 */
604 .long sys_rt_sigpending
605 .long sys_rt_sigtimedwait
606 .long sys_rt_sigqueueinfo
607 .long sys_rt_sigsuspend
608 .long sys_pread64 /* 180 */
609 .long sys_pwrite64
610 .long sys_chown16
611 .long sys_getcwd
612 .long sys_capget
613 .long sys_capset /* 185 */
614 .long sys_sigaltstack
615 .long sys_sendfile
616 .long sys_ni_syscall /* reserved for streams1 */
617 .long sys_ni_syscall /* reserved for streams2 */
618 .long sys_vfork /* 190 */
619 .long sys_getrlimit
620 .long sys_mmap_pgoff
621 .long sys_truncate64
622 .long sys_ftruncate64
623 .long sys_stat64 /* 195 */
624 .long sys_lstat64
625 .long sys_fstat64
626 .long sys_lchown
627 .long sys_getuid
628 .long sys_getgid /* 200 */
629 .long sys_geteuid
630 .long sys_getegid
631 .long sys_setreuid
632 .long sys_setregid
633 .long sys_getgroups /* 205 */
634 .long sys_setgroups
635 .long sys_fchown
636 .long sys_setresuid
637 .long sys_getresuid
638 .long sys_setresgid /* 210 */
639 .long sys_getresgid
640 .long sys_chown
641 .long sys_setuid
642 .long sys_setgid
643 .long sys_setfsuid /* 215 */
644 .long sys_setfsgid
645 .long sys_pivot_root
646 .long sys_mincore
647 .long sys_madvise
648 .long sys_getdents64 /* 220 */
649 .long sys_fcntl64
650 .long sys_ni_syscall /* reserved for TUX */
651 .long sys_ni_syscall
652 .long sys_gettid
653 .long sys_readahead /* 225 */
654 .long sys_setxattr
655 .long sys_lsetxattr
656 .long sys_fsetxattr
657 .long sys_getxattr
658 .long sys_lgetxattr /* 230 */
659 .long sys_fgetxattr
660 .long sys_listxattr
661 .long sys_llistxattr
662 .long sys_flistxattr
663 .long sys_removexattr /* 235 */
664 .long sys_lremovexattr
665 .long sys_fremovexattr
666 .long sys_tkill
667 .long sys_sendfile64
668 .long sys_futex /* 240 */
669 .long sys_sched_setaffinity
670 .long sys_sched_getaffinity
671 .long sys_ni_syscall /* sys_set_thread_area */
672 .long sys_ni_syscall /* sys_get_thread_area */
673 .long sys_io_setup /* 245 */
674 .long sys_io_destroy
675 .long sys_io_getevents
676 .long sys_io_submit
677 .long sys_io_cancel
678 .long sys_fadvise64 /* 250 */
679 .long sys_ni_syscall
680 .long sys_exit_group
681 .long sys_lookup_dcookie
682 .long sys_epoll_create
683 .long sys_epoll_ctl /* 255 */
684 .long sys_epoll_wait
685 .long sys_remap_file_pages
686 .long sys_set_tid_address
687 .long sys_timer_create
688 .long sys_timer_settime /* 260 */
689 .long sys_timer_gettime
690 .long sys_timer_getoverrun
691 .long sys_timer_delete
692 .long sys_clock_settime
693 .long sys_clock_gettime /* 265 */
694 .long sys_clock_getres
695 .long sys_clock_nanosleep
696 .long sys_statfs64
697 .long sys_fstatfs64
698 .long sys_tgkill /* 270 */
699 .long sys_utimes
700 .long sys_fadvise64_64
701 .long sys_ni_syscall /* sys_vserver */
702 .long sys_mbind
703 .long sys_get_mempolicy /* 275 */
704 .long sys_set_mempolicy
705 .long sys_mq_open
706 .long sys_mq_unlink
707 .long sys_mq_timedsend
708 .long sys_mq_timedreceive /* 280 */
709 .long sys_mq_notify
710 .long sys_mq_getsetattr
711 .long sys_kexec_load
712 .long sys_waitid
713 .long sys_ni_syscall /* 285 */ /* available */
714 .long sys_add_key
715 .long sys_request_key
716 .long sys_keyctl
717 .long sys_cacheflush
718 .long sys_ioprio_set /* 290 */
719 .long sys_ioprio_get
720 .long sys_inotify_init
721 .long sys_inotify_add_watch
722 .long sys_inotify_rm_watch
723 .long sys_migrate_pages /* 295 */
724 .long sys_openat
725 .long sys_mkdirat
726 .long sys_mknodat
727 .long sys_fchownat
728 .long sys_futimesat /* 300 */
729 .long sys_fstatat64
730 .long sys_unlinkat
731 .long sys_renameat
732 .long sys_linkat
733 .long sys_symlinkat /* 305 */
734 .long sys_readlinkat
735 .long sys_fchmodat
736 .long sys_faccessat
737 .long sys_pselect6
738 .long sys_ppoll /* 310 */
739 .long sys_unshare
740 .long sys_set_robust_list
741 .long sys_get_robust_list
742 .long sys_splice
743 .long sys_sync_file_range /* 315 */
744 .long sys_tee
745 .long sys_vmsplice
746 .long sys_move_pages
747 .long sys_getcpu
748 .long sys_epoll_pwait /* 320 */
749 .long sys_utimensat
750 .long sys_signalfd
751 .long sys_timerfd_create
752 .long sys_eventfd
753 .long sys_fallocate /* 325 */
754 .long sys_timerfd_settime
755 .long sys_timerfd_gettime
756 .long sys_signalfd4
757 .long sys_eventfd2
758 .long sys_epoll_create1 /* 330 */
759 .long sys_dup3
760 .long sys_pipe2
761 .long sys_inotify_init1
762 .long sys_preadv
763 .long sys_pwritev /* 335 */
764 .long sys_rt_tgsigqueueinfo
765 .long sys_perf_event_open
766 .long sys_recvmmsg
767 .long sys_setns
770 nr_syscalls=(.-sys_call_table)/4