| blob | 18a9c5f4b00d4745dc8dfadb6c33c113ca705b37 |
1 /* -*- mode: asm -*-
2 *
3 * linux/arch/m68k/kernel/entry.S
4 *
5 * Copyright (C) 1991, 1992 Linus Torvalds
6 *
7 * This file is subject to the terms and conditions of the GNU General Public
8 * License. See the file README.legal in the main directory of this archive
9 * for more details.
10 *
11 * Linux/m68k support by Hamish Macdonald
12 *
13 * 68060 fixes by Jesper Skov
14 *
15 */
17 /*
18 * entry.S contains the system-call and fault low-level handling routines.
19 * This also contains the timer-interrupt handler, as well as all interrupts
20 * and faults that can result in a task-switch.
21 *
22 * NOTE: This code handles signal-recognition, which happens every time
23 * after a timer-interrupt and after each system call.
24 *
25 */
27 /*
28 * 12/03/96 Jes: Currently we only support m68k single-cpu systems, so
29 * all pointers that used to be 'current' are now entry
30 * number 0 in the 'current_set' list.
31 *
32 * 6/05/00 RZ: addedd writeback completion after return from sighandler
33 * for 68040
34 */
36 #include <linux/linkage.h>
37 #include <asm/entry.h>
38 #include <asm/errno.h>
39 #include <asm/setup.h>
40 #include <asm/segment.h>
41 #include <asm/traps.h>
42 #include <asm/unistd.h>
44 #include <asm/asm-offsets.h>
46 .globl system_call, buserr, trap, resume
47 .globl sys_call_table
48 .globl sys_fork, sys_clone, sys_vfork
49 .globl ret_from_interrupt, bad_interrupt
50 .globl auto_irqhandler_fixup
51 .globl user_irqvec_fixup, user_irqhandler_fixup
53 .text
54 ENTRY(buserr)
55 SAVE_ALL_INT
56 GET_CURRENT(%d0)
57 movel %sp,%sp@- | stack frame pointer argument
58 bsrl buserr_c
59 addql #4,%sp
60 jra .Lret_from_exception
62 ENTRY(trap)
63 SAVE_ALL_INT
64 GET_CURRENT(%d0)
65 movel %sp,%sp@- | stack frame pointer argument
66 bsrl trap_c
67 addql #4,%sp
68 jra .Lret_from_exception
70 | After a fork we jump here directly from resume,
71 | so that %d1 contains the previous task
72 | schedule_tail now used regardless of CONFIG_SMP
73 ENTRY(ret_from_fork)
74 movel %d1,%sp@-
75 jsr schedule_tail
76 addql #4,%sp
77 jra .Lret_from_exception
79 do_trace_entry:
80 movel #-ENOSYS,%sp@(PT_D0) | needed for strace
81 subql #4,%sp
82 SAVE_SWITCH_STACK
83 jbsr syscall_trace
84 RESTORE_SWITCH_STACK
85 addql #4,%sp
86 movel %sp@(PT_ORIG_D0),%d0
87 cmpl #NR_syscalls,%d0
88 jcs syscall
89 badsys:
90 movel #-ENOSYS,%sp@(PT_D0)
91 jra ret_from_syscall
93 do_trace_exit:
94 subql #4,%sp
95 SAVE_SWITCH_STACK
96 jbsr syscall_trace
97 RESTORE_SWITCH_STACK
98 addql #4,%sp
99 jra .Lret_from_exception
101 ENTRY(ret_from_signal)
102 RESTORE_SWITCH_STACK
103 addql #4,%sp
104 /* on 68040 complete pending writebacks if any */
105 #ifdef CONFIG_M68040
106 bfextu %sp@(PT_VECTOR){#0,#4},%d0
107 subql #7,%d0 | bus error frame ?
108 jbne 1f
109 movel %sp,%sp@-
110 jbsr berr_040cleanup
111 addql #4,%sp
112 1:
113 #endif
114 jra .Lret_from_exception
116 ENTRY(system_call)
117 SAVE_ALL_SYS
119 GET_CURRENT(%d1)
120 | save top of frame
121 movel %sp,%curptr@(TASK_THREAD+THREAD_ESP0)
123 | syscall trace?
124 tstb %curptr@(TASK_INFO+TINFO_FLAGS+2)
125 jmi do_trace_entry
126 cmpl #NR_syscalls,%d0
127 jcc badsys
128 syscall:
129 jbsr @(sys_call_table,%d0:l:4)@(0)
130 movel %d0,%sp@(PT_D0) | save the return value
131 ret_from_syscall:
132 |oriw #0x0700,%sr
133 movew %curptr@(TASK_INFO+TINFO_FLAGS+2),%d0
134 jne syscall_exit_work
135 1: RESTORE_ALL
137 syscall_exit_work:
138 btst #5,%sp@(PT_SR) | check if returning to kernel
139 bnes 1b | if so, skip resched, signals
140 lslw #1,%d0
141 jcs do_trace_exit
142 jmi do_delayed_trace
143 lslw #8,%d0
144 jmi do_signal_return
145 pea resume_userspace
146 jra schedule
149 ENTRY(ret_from_exception)
150 .Lret_from_exception:
151 btst #5,%sp@(PT_SR) | check if returning to kernel
152 bnes 1f | if so, skip resched, signals
153 | only allow interrupts when we are really the last one on the
154 | kernel stack, otherwise stack overflow can occur during
155 | heavy interrupt load
156 andw #ALLOWINT,%sr
158 resume_userspace:
159 moveb %curptr@(TASK_INFO+TINFO_FLAGS+3),%d0
160 jne exit_work
161 1: RESTORE_ALL
163 exit_work:
164 | save top of frame
165 movel %sp,%curptr@(TASK_THREAD+THREAD_ESP0)
166 lslb #1,%d0
167 jmi do_signal_return
168 pea resume_userspace
169 jra schedule
172 do_signal_return:
173 |andw #ALLOWINT,%sr
174 subql #4,%sp | dummy return address
175 SAVE_SWITCH_STACK
176 pea %sp@(SWITCH_STACK_SIZE)
177 clrl %sp@-
178 bsrl do_signal
179 addql #8,%sp
180 RESTORE_SWITCH_STACK
181 addql #4,%sp
182 jbra resume_userspace
184 do_delayed_trace:
185 bclr #7,%sp@(PT_SR) | clear trace bit in SR
186 pea 1 | send SIGTRAP
187 movel %curptr,%sp@-
188 pea LSIGTRAP
189 jbsr send_sig
190 addql #8,%sp
191 addql #4,%sp
192 jbra resume_userspace
195 /* This is the main interrupt handler for autovector interrupts */
197 ENTRY(auto_inthandler)
198 SAVE_ALL_INT
199 GET_CURRENT(%d0)
200 addqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1)
201 | put exception # in d0
202 bfextu %sp@(PT_VECTOR){#4,#10},%d0
203 subw #VEC_SPUR,%d0
205 movel %sp,%sp@-
206 movel %d0,%sp@- | put vector # on stack
207 auto_irqhandler_fixup = . + 2
208 jsr __m68k_handle_int | process the IRQ
209 addql #8,%sp | pop parameters off stack
211 ret_from_interrupt:
212 subqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1)
213 jeq ret_from_last_interrupt
214 2: RESTORE_ALL
216 ALIGN
217 ret_from_last_interrupt:
218 moveq #(~ALLOWINT>>8)&0xff,%d0
219 andb %sp@(PT_SR),%d0
220 jne 2b
222 /* check if we need to do software interrupts */
223 tstl irq_stat+CPUSTAT_SOFTIRQ_PENDING
224 jeq .Lret_from_exception
225 pea ret_from_exception
226 jra do_softirq
228 /* Handler for user defined interrupt vectors */
230 ENTRY(user_inthandler)
231 SAVE_ALL_INT
232 GET_CURRENT(%d0)
233 addqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1)
234 | put exception # in d0
235 bfextu %sp@(PT_VECTOR){#4,#10},%d0
236 user_irqvec_fixup = . + 2
237 subw #VEC_USER,%d0
239 movel %sp,%sp@-
240 movel %d0,%sp@- | put vector # on stack
241 user_irqhandler_fixup = . + 2
242 jsr __m68k_handle_int | process the IRQ
243 addql #8,%sp | pop parameters off stack
245 subqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1)
246 jeq ret_from_last_interrupt
247 RESTORE_ALL
249 /* Handler for uninitialized and spurious interrupts */
251 ENTRY(bad_inthandler)
252 SAVE_ALL_INT
253 GET_CURRENT(%d0)
254 addqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1)
256 movel %sp,%sp@-
257 jsr handle_badint
258 addql #4,%sp
260 subqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1)
261 jeq ret_from_last_interrupt
262 RESTORE_ALL
265 ENTRY(sys_fork)
266 SAVE_SWITCH_STACK
267 pea %sp@(SWITCH_STACK_SIZE)
268 jbsr m68k_fork
269 addql #4,%sp
270 RESTORE_SWITCH_STACK
271 rts
273 ENTRY(sys_clone)
274 SAVE_SWITCH_STACK
275 pea %sp@(SWITCH_STACK_SIZE)
276 jbsr m68k_clone
277 addql #4,%sp
278 RESTORE_SWITCH_STACK
279 rts
281 ENTRY(sys_vfork)
282 SAVE_SWITCH_STACK
283 pea %sp@(SWITCH_STACK_SIZE)
284 jbsr m68k_vfork
285 addql #4,%sp
286 RESTORE_SWITCH_STACK
287 rts
289 ENTRY(sys_sigsuspend)
290 SAVE_SWITCH_STACK
291 pea %sp@(SWITCH_STACK_SIZE)
292 jbsr do_sigsuspend
293 addql #4,%sp
294 RESTORE_SWITCH_STACK
295 rts
297 ENTRY(sys_rt_sigsuspend)
298 SAVE_SWITCH_STACK
299 pea %sp@(SWITCH_STACK_SIZE)
300 jbsr do_rt_sigsuspend
301 addql #4,%sp
302 RESTORE_SWITCH_STACK
303 rts
305 ENTRY(sys_sigreturn)
306 SAVE_SWITCH_STACK
307 jbsr do_sigreturn
308 RESTORE_SWITCH_STACK
309 rts
311 ENTRY(sys_rt_sigreturn)
312 SAVE_SWITCH_STACK
313 jbsr do_rt_sigreturn
314 RESTORE_SWITCH_STACK
315 rts
317 resume:
318 /*
319 * Beware - when entering resume, prev (the current task) is
320 * in a0, next (the new task) is in a1,so don't change these
321 * registers until their contents are no longer needed.
322 */
324 /* save sr */
325 movew %sr,%a0@(TASK_THREAD+THREAD_SR)
327 /* save fs (sfc,%dfc) (may be pointing to kernel memory) */
328 movec %sfc,%d0
329 movew %d0,%a0@(TASK_THREAD+THREAD_FS)
331 /* save usp */
332 /* it is better to use a movel here instead of a movew 8*) */
333 movec %usp,%d0
334 movel %d0,%a0@(TASK_THREAD+THREAD_USP)
336 /* save non-scratch registers on stack */
337 SAVE_SWITCH_STACK
339 /* save current kernel stack pointer */
340 movel %sp,%a0@(TASK_THREAD+THREAD_KSP)
342 /* save floating point context */
343 #ifndef CONFIG_M68KFPU_EMU_ONLY
344 #ifdef CONFIG_M68KFPU_EMU
345 tstl m68k_fputype
346 jeq 3f
347 #endif
348 fsave %a0@(TASK_THREAD+THREAD_FPSTATE)
350 #if defined(CONFIG_M68060)
351 #if !defined(CPU_M68060_ONLY)
352 btst #3,m68k_cputype+3
353 beqs 1f
354 #endif
355 /* The 060 FPU keeps status in bits 15-8 of the first longword */
356 tstb %a0@(TASK_THREAD+THREAD_FPSTATE+2)
357 jeq 3f
358 #if !defined(CPU_M68060_ONLY)
359 jra 2f
360 #endif
361 #endif /* CONFIG_M68060 */
362 #if !defined(CPU_M68060_ONLY)
363 1: tstb %a0@(TASK_THREAD+THREAD_FPSTATE)
364 jeq 3f
365 #endif
366 2: fmovemx %fp0-%fp7,%a0@(TASK_THREAD+THREAD_FPREG)
367 fmoveml %fpcr/%fpsr/%fpiar,%a0@(TASK_THREAD+THREAD_FPCNTL)
368 3:
369 #endif /* CONFIG_M68KFPU_EMU_ONLY */
370 /* Return previous task in %d1 */
371 movel %curptr,%d1
373 /* switch to new task (a1 contains new task) */
374 movel %a1,%curptr
376 /* restore floating point context */
377 #ifndef CONFIG_M68KFPU_EMU_ONLY
378 #ifdef CONFIG_M68KFPU_EMU
379 tstl m68k_fputype
380 jeq 4f
381 #endif
382 #if defined(CONFIG_M68060)
383 #if !defined(CPU_M68060_ONLY)
384 btst #3,m68k_cputype+3
385 beqs 1f
386 #endif
387 /* The 060 FPU keeps status in bits 15-8 of the first longword */
388 tstb %a1@(TASK_THREAD+THREAD_FPSTATE+2)
389 jeq 3f
390 #if !defined(CPU_M68060_ONLY)
391 jra 2f
392 #endif
393 #endif /* CONFIG_M68060 */
394 #if !defined(CPU_M68060_ONLY)
395 1: tstb %a1@(TASK_THREAD+THREAD_FPSTATE)
396 jeq 3f
397 #endif
398 2: fmovemx %a1@(TASK_THREAD+THREAD_FPREG),%fp0-%fp7
399 fmoveml %a1@(TASK_THREAD+THREAD_FPCNTL),%fpcr/%fpsr/%fpiar
400 3: frestore %a1@(TASK_THREAD+THREAD_FPSTATE)
401 4:
402 #endif /* CONFIG_M68KFPU_EMU_ONLY */
404 /* restore the kernel stack pointer */
405 movel %a1@(TASK_THREAD+THREAD_KSP),%sp
407 /* restore non-scratch registers */
408 RESTORE_SWITCH_STACK
410 /* restore user stack pointer */
411 movel %a1@(TASK_THREAD+THREAD_USP),%a0
412 movel %a0,%usp
414 /* restore fs (sfc,%dfc) */
415 movew %a1@(TASK_THREAD+THREAD_FS),%a0
416 movec %a0,%sfc
417 movec %a0,%dfc
419 /* restore status register */
420 movew %a1@(TASK_THREAD+THREAD_SR),%sr
422 rts
424 .data
425 ALIGN
426 sys_call_table:
427 .long sys_ni_syscall /* 0 - old "setup()" system call*/
428 .long sys_exit
429 .long sys_fork
430 .long sys_read
431 .long sys_write
432 .long sys_open /* 5 */
433 .long sys_close
434 .long sys_waitpid
435 .long sys_creat
436 .long sys_link
437 .long sys_unlink /* 10 */
438 .long sys_execve
439 .long sys_chdir
440 .long sys_time
441 .long sys_mknod
442 .long sys_chmod /* 15 */
443 .long sys_chown16
444 .long sys_ni_syscall /* old break syscall holder */
445 .long sys_stat
446 .long sys_lseek
447 .long sys_getpid /* 20 */
448 .long sys_mount
449 .long sys_oldumount
450 .long sys_setuid16
451 .long sys_getuid16
452 .long sys_stime /* 25 */
453 .long sys_ptrace
454 .long sys_alarm
455 .long sys_fstat
456 .long sys_pause
457 .long sys_utime /* 30 */
458 .long sys_ni_syscall /* old stty syscall holder */
459 .long sys_ni_syscall /* old gtty syscall holder */
460 .long sys_access
461 .long sys_nice
462 .long sys_ni_syscall /* 35 */ /* old ftime syscall holder */
463 .long sys_sync
464 .long sys_kill
465 .long sys_rename
466 .long sys_mkdir
467 .long sys_rmdir /* 40 */
468 .long sys_dup
469 .long sys_pipe
470 .long sys_times
471 .long sys_ni_syscall /* old prof syscall holder */
472 .long sys_brk /* 45 */
473 .long sys_setgid16
474 .long sys_getgid16
475 .long sys_signal
476 .long sys_geteuid16
477 .long sys_getegid16 /* 50 */
478 .long sys_acct
479 .long sys_umount /* recycled never used phys() */
480 .long sys_ni_syscall /* old lock syscall holder */
481 .long sys_ioctl
482 .long sys_fcntl /* 55 */
483 .long sys_ni_syscall /* old mpx syscall holder */
484 .long sys_setpgid
485 .long sys_ni_syscall /* old ulimit syscall holder */
486 .long sys_ni_syscall
487 .long sys_umask /* 60 */
488 .long sys_chroot
489 .long sys_ustat
490 .long sys_dup2
491 .long sys_getppid
492 .long sys_getpgrp /* 65 */
493 .long sys_setsid
494 .long sys_sigaction
495 .long sys_sgetmask
496 .long sys_ssetmask
497 .long sys_setreuid16 /* 70 */
498 .long sys_setregid16
499 .long sys_sigsuspend
500 .long sys_sigpending
501 .long sys_sethostname
502 .long sys_setrlimit /* 75 */
503 .long sys_old_getrlimit
504 .long sys_getrusage
505 .long sys_gettimeofday
506 .long sys_settimeofday
507 .long sys_getgroups16 /* 80 */
508 .long sys_setgroups16
509 .long old_select
510 .long sys_symlink
511 .long sys_lstat
512 .long sys_readlink /* 85 */
513 .long sys_uselib
514 .long sys_swapon
515 .long sys_reboot
516 .long old_readdir
517 .long old_mmap /* 90 */
518 .long sys_munmap
519 .long sys_truncate
520 .long sys_ftruncate
521 .long sys_fchmod
522 .long sys_fchown16 /* 95 */
523 .long sys_getpriority
524 .long sys_setpriority
525 .long sys_ni_syscall /* old profil syscall holder */
526 .long sys_statfs
527 .long sys_fstatfs /* 100 */
528 .long sys_ni_syscall /* ioperm for i386 */
529 .long sys_socketcall
530 .long sys_syslog
531 .long sys_setitimer
532 .long sys_getitimer /* 105 */
533 .long sys_newstat
534 .long sys_newlstat
535 .long sys_newfstat
536 .long sys_ni_syscall
537 .long sys_ni_syscall /* 110 */ /* iopl for i386 */
538 .long sys_vhangup
539 .long sys_ni_syscall /* obsolete idle() syscall */
540 .long sys_ni_syscall /* vm86old for i386 */
541 .long sys_wait4
542 .long sys_swapoff /* 115 */
543 .long sys_sysinfo
544 .long sys_ipc
545 .long sys_fsync
546 .long sys_sigreturn
547 .long sys_clone /* 120 */
548 .long sys_setdomainname
549 .long sys_newuname
550 .long sys_cacheflush /* modify_ldt for i386 */
551 .long sys_adjtimex
552 .long sys_mprotect /* 125 */
553 .long sys_sigprocmask
554 .long sys_ni_syscall /* old "create_module" */
555 .long sys_init_module
556 .long sys_delete_module
557 .long sys_ni_syscall /* 130 - old "get_kernel_syms" */
558 .long sys_quotactl
559 .long sys_getpgid
560 .long sys_fchdir
561 .long sys_bdflush
562 .long sys_sysfs /* 135 */
563 .long sys_personality
564 .long sys_ni_syscall /* for afs_syscall */
565 .long sys_setfsuid16
566 .long sys_setfsgid16
567 .long sys_llseek /* 140 */
568 .long sys_getdents
569 .long sys_select
570 .long sys_flock
571 .long sys_msync
572 .long sys_readv /* 145 */
573 .long sys_writev
574 .long sys_getsid
575 .long sys_fdatasync
576 .long sys_sysctl
577 .long sys_mlock /* 150 */
578 .long sys_munlock
579 .long sys_mlockall
580 .long sys_munlockall
581 .long sys_sched_setparam
582 .long sys_sched_getparam /* 155 */
583 .long sys_sched_setscheduler
584 .long sys_sched_getscheduler
585 .long sys_sched_yield
586 .long sys_sched_get_priority_max
587 .long sys_sched_get_priority_min /* 160 */
588 .long sys_sched_rr_get_interval
589 .long sys_nanosleep
590 .long sys_mremap
591 .long sys_setresuid16
592 .long sys_getresuid16 /* 165 */
593 .long sys_getpagesize
594 .long sys_ni_syscall /* old sys_query_module */
595 .long sys_poll
596 .long sys_nfsservctl
597 .long sys_setresgid16 /* 170 */
598 .long sys_getresgid16
599 .long sys_prctl
600 .long sys_rt_sigreturn
601 .long sys_rt_sigaction
602 .long sys_rt_sigprocmask /* 175 */
603 .long sys_rt_sigpending
604 .long sys_rt_sigtimedwait
605 .long sys_rt_sigqueueinfo
606 .long sys_rt_sigsuspend
607 .long sys_pread64 /* 180 */
608 .long sys_pwrite64
609 .long sys_lchown16;
610 .long sys_getcwd
611 .long sys_capget
612 .long sys_capset /* 185 */
613 .long sys_sigaltstack
614 .long sys_sendfile
615 .long sys_ni_syscall /* streams1 */
616 .long sys_ni_syscall /* streams2 */
617 .long sys_vfork /* 190 */
618 .long sys_getrlimit
619 .long sys_mmap2
620 .long sys_truncate64
621 .long sys_ftruncate64
622 .long sys_stat64 /* 195 */
623 .long sys_lstat64
624 .long sys_fstat64
625 .long sys_chown
626 .long sys_getuid
627 .long sys_getgid /* 200 */
628 .long sys_geteuid
629 .long sys_getegid
630 .long sys_setreuid
631 .long sys_setregid
632 .long sys_getgroups /* 205 */
633 .long sys_setgroups
634 .long sys_fchown
635 .long sys_setresuid
636 .long sys_getresuid
637 .long sys_setresgid /* 210 */
638 .long sys_getresgid
639 .long sys_lchown
640 .long sys_setuid
641 .long sys_setgid
642 .long sys_setfsuid /* 215 */
643 .long sys_setfsgid
644 .long sys_pivot_root
645 .long sys_ni_syscall
646 .long sys_ni_syscall
647 .long sys_getdents64 /* 220 */
648 .long sys_gettid
649 .long sys_tkill
650 .long sys_setxattr
651 .long sys_lsetxattr
652 .long sys_fsetxattr /* 225 */
653 .long sys_getxattr
654 .long sys_lgetxattr
655 .long sys_fgetxattr
656 .long sys_listxattr
657 .long sys_llistxattr /* 230 */
658 .long sys_flistxattr
659 .long sys_removexattr
660 .long sys_lremovexattr
661 .long sys_fremovexattr
662 .long sys_futex /* 235 */
663 .long sys_sendfile64
664 .long sys_mincore
665 .long sys_madvise
666 .long sys_fcntl64
667 .long sys_readahead /* 240 */
668 .long sys_io_setup
669 .long sys_io_destroy
670 .long sys_io_getevents
671 .long sys_io_submit
672 .long sys_io_cancel /* 245 */
673 .long sys_fadvise64
674 .long sys_exit_group
675 .long sys_lookup_dcookie
676 .long sys_epoll_create
677 .long sys_epoll_ctl /* 250 */
678 .long sys_epoll_wait
679 .long sys_remap_file_pages
680 .long sys_set_tid_address
681 .long sys_timer_create
682 .long sys_timer_settime /* 255 */
683 .long sys_timer_gettime
684 .long sys_timer_getoverrun
685 .long sys_timer_delete
686 .long sys_clock_settime
687 .long sys_clock_gettime /* 260 */
688 .long sys_clock_getres
689 .long sys_clock_nanosleep
690 .long sys_statfs64
691 .long sys_fstatfs64
692 .long sys_tgkill /* 265 */
693 .long sys_utimes
694 .long sys_fadvise64_64
695 .long sys_mbind
696 .long sys_get_mempolicy
697 .long sys_set_mempolicy /* 270 */
698 .long sys_mq_open
699 .long sys_mq_unlink
700 .long sys_mq_timedsend
701 .long sys_mq_timedreceive
702 .long sys_mq_notify /* 275 */
703 .long sys_mq_getsetattr
704 .long sys_waitid
705 .long sys_ni_syscall /* for sys_vserver */
706 .long sys_add_key
707 .long sys_request_key /* 280 */
708 .long sys_keyctl
709 .long sys_ioprio_set
710 .long sys_ioprio_get
711 .long sys_inotify_init
712 .long sys_inotify_add_watch /* 285 */
713 .long sys_inotify_rm_watch
714 .long sys_migrate_pages
715 .long sys_openat
716 .long sys_mkdirat
717 .long sys_mknodat /* 290 */
718 .long sys_fchownat
719 .long sys_futimesat
720 .long sys_fstatat64
721 .long sys_unlinkat
722 .long sys_renameat /* 295 */
723 .long sys_linkat
724 .long sys_symlinkat
725 .long sys_readlinkat
726 .long sys_fchmodat
727 .long sys_faccessat /* 300 */
728 .long sys_ni_syscall /* Reserved for pselect6 */
729 .long sys_ni_syscall /* Reserved for ppoll */
730 .long sys_unshare
731 .long sys_set_robust_list
732 .long sys_get_robust_list /* 305 */
733 .long sys_splice
734 .long sys_sync_file_range
735 .long sys_tee
736 .long sys_vmsplice
737 .long sys_move_pages /* 310 */
738 .long sys_sched_setaffinity
739 .long sys_sched_getaffinity
740 .long sys_kexec_load
741 .long sys_getcpu
742 .long sys_epoll_pwait /* 315 */
743 .long sys_utimensat
744 .long sys_signalfd
745 .long sys_timerfd_create
746 .long sys_eventfd
747 .long sys_fallocate /* 320 */
748 .long sys_timerfd_settime
749 .long sys_timerfd_gettime