aboutsummaryrefslogtreecommitdiffstats
path: root/arch/cris/arch-v32/kernel/entry.S
blob: 7f6f93e6b70e0c94f7a08a26a6868487bece3043 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
/*
 *  Copyright (C) 2000-2003 Axis Communications AB
 *
 *  Authors:	Bjorn Wesen (bjornw@axis.com)
 *              Tobias Anderberg (tobiasa@axis.com), CRISv32 port.
 *
 * Code for the system-call and fault low-level handling routines.
 *
 * NOTE: This code handles signal-recognition, which happens every time
 * after a timer-interrupt and after each system call.
 *
 * Stack layout in 'ret_from_system_call':
 *	ptrace needs to have all regs on the stack.
 *	if the order here is changed, it needs to be
 *	updated in fork.c:copy_process, signal.c:do_signal,
 *	ptrace.c and ptrace.h
 *
 */

#include <linux/linkage.h>
#include <linux/sys.h>
#include <asm/unistd.h>
#include <asm/errno.h>
#include <asm/thread_info.h>
#include <asm/asm-offsets.h>

#include <hwregs/asm/reg_map_asm.h>
#include <hwregs/asm/intr_vect_defs_asm.h>

	;; Exported functions.
	.globl system_call
	.globl ret_from_intr
	.globl ret_from_fork
	.globl resume
	.globl multiple_interrupt
	.globl nmi_interrupt
	.globl spurious_interrupt
	.globl do_sigtrap
	.globl gdb_handle_exception
	.globl sys_call_table

	; Check if preemptive kernel scheduling should be done.
#ifdef CONFIG_PREEMPT
_resume_kernel:
	di
	; Load current task struct.
	movs.w	-8192, $r0		; THREAD_SIZE = 8192
	and.d	$sp, $r0

	addoq	+TI_preempt_count, $r0, $acr
	move.d	[$acr], $r10		; Preemption disabled?
	bne	_Rexit
	nop

_need_resched:
	addoq	+TI_flags, $r0, $acr
	move.d	[$acr], $r10
	btstq	TIF_NEED_RESCHED, $r10	; Check if need_resched is set.
	bpl	_Rexit
	nop

	; Do preemptive kernel scheduling.
	jsr	preempt_schedule_irq
	nop

	; Load new task struct.
	movs.w	-8192, $r0		; THREAD_SIZE = 8192.
	and.d	$sp, $r0

	; One more time with new task.
	ba	_need_resched
	nop
#else
#define _resume_kernel _Rexit
#endif

	; Called at exit from fork. schedule_tail must be called to drop
	; spinlock if CONFIG_PREEMPT.
ret_from_fork:
	jsr schedule_tail
	nop
	ba  ret_from_sys_call
	nop

ret_from_intr:
	;; Check for resched if preemptive kernel, or if we're going back to
	;; user-mode. This test matches the user_regs(regs) macro. Don't simply
	;; test CCS since that doesn't necessarily reflect what mode we'll
	;; return into.
	addoq	+PT_ccs, $sp, $acr
	move.d	[$acr], $r0
	btstq	16, $r0			; User-mode flag.
	bpl	_resume_kernel

	; Note that di below is in delay slot.

_resume_userspace:
	di			; So need_resched and sigpending don't change.

	movs.w	-8192, $r0		; THREAD_SIZE == 8192
	and.d	$sp, $r0

	addoq	+TI_flags, $r0, $acr	; current->work
	move.d	[$acr], $r10
	and.d	_TIF_WORK_MASK, $r10	; Work to be done on return?
	bne	_work_pending
	nop
	ba	_Rexit
	nop

	;; The system_call is called by a BREAK instruction, which looks pretty
	;; much like any other exception.
	;;
	;; System calls can't be made from interrupts but we still stack ERP
	;; to have a complete stack frame.
	;;
	;; In r9 we have the wanted syscall number. Arguments come in r10,r11,r12,
	;; r13,mof,srp
	;;
	;; This function looks on the _surface_ like spaghetti programming, but it's
	;; really designed so that the fast-path does not force cache-loading of
	;; non-used instructions. Only the non-common cases cause the outlined code
	;; to run..

system_call:
	;; Stack-frame similar to the irq heads, which is reversed in
	;; ret_from_sys_call.
	subq	12, $sp		; Skip EXS, EDA.
	move	$erp, [$sp]
	subq	4, $sp
	move	$srp, [$sp]
	subq	4, $sp
	move	$ccs, [$sp]
	subq	4, $sp
	ei			; Allow IRQs while handling system call
	move	$spc, [$sp]
	subq	4, $sp
	move	$mof, [$sp]
	subq	4, $sp
	move	$srs, [$sp]
	subq	4, $sp
	move.d	$acr, [$sp]
	subq	14*4, $sp	; Make room for R0-R13.
	movem	$r13, [$sp]	; Push R0-R13
	subq	4, $sp
	move.d	$r10, [$sp]	; Push orig_r10.

; Set S-bit when kernel debugging to keep hardware breakpoints active.
#ifdef CONFIG_ETRAX_KGDB
	move $ccs, $r0
	or.d (1<<9), $r0
	move $r0, $ccs
#endif

	movs.w	-ENOSYS, $r0
	addoq	+PT_r10, $sp, $acr
	move.d	$r0, [$acr]

	;; Check if this process is syscall-traced.
	movs.w	-8192, $r0	; THREAD_SIZE == 8192
	and.d	$sp, $r0

	addoq	+TI_flags, $r0, $acr
	move.d	[$acr], $r0
	btstq	TIF_SYSCALL_TRACE, $r0
	bmi	_syscall_trace_entry
	nop

_syscall_traced:
	;; Check for sanity in the requested syscall number.
	cmpu.w	NR_syscalls, $r9
	bhs	ret_from_sys_call
	lslq	2, $r9		;  Multiply by 4, in the delay slot.

	;; The location on the stack for the register structure is passed as a
	;; seventh argument. Some system calls need this.
	move.d  $sp, $r0
	subq	4, $sp
	move.d	$r0, [$sp]

	;; The registers carrying parameters (R10-R13) are intact. The optional
	;; fifth and sixth parameters is in MOF and SRP respectivly. Put them
	;; back on the stack.
	subq	4, $sp
	move	$srp, [$sp]
	subq	4, $sp
	move	$mof, [$sp]

	;; Actually to the system call.
	addo.d	+sys_call_table, $r9, $acr
	move.d	[$acr], $acr
	jsr	$acr
	nop

	addq	3*4, $sp		; Pop the mof, srp and regs parameters.
	addoq	+PT_r10, $sp, $acr
	move.d	$r10, [$acr]		; Save the return value.

	moveq	1, $r9			; "Parameter" to ret_from_sys_call to
					; show it was a sys call.

	;; Fall through into ret_from_sys_call to return.

ret_from_sys_call:
	;; R9 is a parameter:
	;;  >= 1 from syscall
	;;     0 from irq

	;; Get the current task-struct pointer.
	movs.w	-8192, $r0	; THREAD_SIZE == 8192
	and.d	$sp, $r0

	di		; Make sure need_resched and sigpending don't change.

	addoq	+TI_flags, $r0, $acr
	move.d	[$acr], $r1
	and.d	_TIF_ALLWORK_MASK, $r1
	bne	_syscall_exit_work
	nop

_Rexit:
	;; This epilogue MUST match the prologues in multiple_interrupt, irq.h
	;; and ptregs.h.
	addq	4, $sp		; Skip orig_r10.
	movem	[$sp+], $r13	; Registers R0-R13.
	move.d	[$sp+], $acr
	move	[$sp], $srs
	addq	4, $sp
	move	[$sp+], $mof
	move	[$sp+], $spc
	move	[$sp+], $ccs
	move	[$sp+], $srp
	move	[$sp+], $erp
	addq    8, $sp		; Skip EXS, EDA.
	jump	$erp
	rfe			; Restore condition code stack in delay-slot.

	;; We get here after doing a syscall if extra work might need to be done
	;; perform syscall exit tracing if needed.

_syscall_exit_work:
	;; R0 contains current at this point and irq's are disabled.

	addoq	+TI_flags, $r0, $acr
	move.d	[$acr], $r1
	btstq	TIF_SYSCALL_TRACE, $r1
	bpl	_work_pending
	nop
	ei
	move.d	$r9, $r1		; Preserve R9.
	jsr	do_syscall_trace
	nop
	move.d	$r1, $r9
	ba	_resume_userspace
	nop

_work_pending:
	addoq	+TI_flags, $r0, $acr
	move.d	[$acr], $r10
	btstq	TIF_NEED_RESCHED, $r10	; Need resched?
	bpl	_work_notifysig		; No, must be signal/notify.
	nop

_work_resched:
	move.d	$r9, $r1		; Preserve R9.
	jsr	schedule
	nop
	move.d	$r1, $r9
	di

	addoq	+TI_flags, $r0, $acr
	move.d	[$acr], $r1
	and.d	_TIF_WORK_MASK, $r1	; Ignore sycall trace counter.
	beq	_Rexit
	nop
	btstq	TIF_NEED_RESCHED, $r1
	bmi	_work_resched		; current->work.need_resched.
	nop

_work_notifysig:
	;; Deal with pending signals and notify-resume requests.

	addoq	+TI_flags, $r0, $acr
	move.d	[$acr], $r12		; The thread_info_flags parameter.
	move.d	$sp, $r11		; The regs param.
	jsr	do_notify_resume
	move.d	$r9, $r10		; do_notify_resume syscall/irq param.

	ba _Rexit
	nop

	;; We get here as a sidetrack when we've entered a syscall with the
	;; trace-bit set. We need to call do_syscall_trace and then continue
	;; with the call.

_syscall_trace_entry:
	;; PT_r10 in the frame contains -ENOSYS as required, at this point.

	jsr	do_syscall_trace
	nop

	;; Now re-enter the syscall code to do the syscall itself. We need to
	;; restore R9 here to contain the wanted syscall, and the other
	;; parameter-bearing registers.
	addoq	+PT_r9, $sp, $acr
	move.d	[$acr], $r9
	addoq	+PT_orig_r10, $sp, $acr
	move.d	[$acr], $r10		; PT_r10 is already -ENOSYS.
	addoq	+PT_r11, $sp, $acr
	move.d	[$acr], $r11
	addoq	+PT_r12, $sp, $acr
	move.d	[$acr], $r12
	addoq	+PT_r13, $sp, $acr
	move.d	[$acr], $r13
	addoq	+PT_mof, $sp, $acr
	move	[$acr], $mof
	addoq	+PT_srp, $sp, $acr
	move	[$acr], $srp

	ba	_syscall_traced
	nop

	;; Resume performs the actual task-switching, by switching stack
	;; pointers. Input arguments are:
	;;
	;; R10 = prev
	;; R11 = next
	;; R12 = thread offset in task struct.
	;;
	;; Returns old current in R10.

resume:
	subq	4, $sp
	move	$srp, [$sp]		; Keep old/new PC on the stack.
	add.d	$r12, $r10		; R10 = current tasks tss.
	addoq	+THREAD_ccs, $r10, $acr
	move	$ccs, [$acr]		; Save IRQ enable state.
	di

	addoq	+THREAD_usp, $r10, $acr
	move	$usp, [$acr]		; Save user-mode stackpointer.

	;; See copy_thread for the reason why register R9 is saved.
	subq	10*4, $sp
	movem	$r9, [$sp]		; Save non-scratch registers and R9.

	addoq	+THREAD_ksp, $r10, $acr
	move.d	$sp, [$acr]		; Save kernel SP for old task.

	move.d	$sp, $r10		; Return last running task in R10.
	and.d   -8192, $r10		; Get thread_info from stackpointer.
	addoq	+TI_task, $r10, $acr
	move.d	[$acr], $r10		; Get task.
	add.d	$r12, $r11		; Find the new tasks tss.
	addoq	+THREAD_ksp, $r11, $acr
	move.d	[$acr], $sp		; Switch to new stackframe.
	movem	[$sp+], $r9		; Restore non-scratch registers and R9.

	addoq	+THREAD_usp, $r11, $acr
	move	[$acr], $usp		; Restore user-mode stackpointer.

	addoq	+THREAD_ccs, $r11, $acr
	move	[$acr], $ccs		; Restore IRQ enable status.
	move.d	[$sp+], $acr
	jump	$acr			; Restore PC.
	nop

nmi_interrupt:

;; If we receive a watchdog interrupt while it is not expected, then set
;; up a canonical frame and dump register contents before dying.

	;; This prologue MUST match the one in irq.h and the struct in ptregs.h!
	subq	12, $sp		;  Skip EXS, EDA.
	move	$nrp, [$sp]
	subq	4, $sp
	move	$srp, [$sp]
	subq	4, $sp
	move	$ccs, [$sp]
	subq	4, $sp
	move	$spc, [$sp]
	subq	4, $sp
	move	$mof, [$sp]
	subq	4, $sp
	move	$srs, [$sp]
	subq	4, $sp
	move.d	$acr, [$sp]
	subq	14*4, $sp		; Make room for R0-R13.
	movem	$r13, [$sp]		; Push R0-R13.
	subq	4, $sp
	move.d	$r10, [$sp]		; Push orig_r10.
	move.d  REG_ADDR(intr_vect, regi_irq, r_nmi), $r0
	move.d  [$r0], $r0
	btstq	REG_BIT(intr_vect, r_nmi, watchdog), $r0
	bpl     1f
	nop
	jsr	handle_watchdog_bite	; In time.c.
        move.d	$sp, $r10		; Pointer to registers
1:	btstq	REG_BIT(intr_vect, r_nmi, ext), $r0
	bpl     1f
	nop
	jsr	handle_nmi
	move.d	$sp, $r10		; Pointer to registers
1:	addq    4, $sp			; Skip orig_r10
	movem   [$sp+], $r13
	move.d  [$sp+], $acr
	move    [$sp], $srs
	addq    4, $sp
	move    [$sp+], $mof
	move    [$sp+], $spc
	move    [$sp+], $ccs
	move	[$sp+], $srp
	move	[$sp+], $nrp
	addq    8, $sp			; Skip EXS, EDA.
	jump    $nrp
	rfn

	.comm	cause_of_death, 4	;; Don't declare this anywhere.

spurious_interrupt:
	di
	jump hard_reset_now
	nop

	;; This handles the case when multiple interrupts arrive at the same
	;; time. Jump to the first set interrupt bit in a priotiry fashion. The
	;; hardware will call the unserved interrupts after the handler
	;; finishes.
multiple_interrupt:
	;; This prologue MUST match the one in irq.h and the struct in ptregs.h!
	subq	12, $sp		; Skip EXS, EDA.
	move	$erp, [$sp]
	subq	4, $sp
	move	$srp, [$sp]
	subq	4, $sp
	move	$ccs, [$sp]
	subq	4, $sp
	move	$spc, [$sp]
	subq	4, $sp
	move	$mof, [$sp]
	subq	4, $sp
	move	$srs, [$sp]
	subq	4, $sp
	move.d	$acr, [$sp]
	subq	14*4, $sp	; Make room for R0-R13.
	movem	$r13, [$sp]	; Push R0-R13.
	subq	4, $sp
	move.d	$r10, [$sp]	; Push orig_r10.

; Set S-bit when kernel debugging to keep hardware breakpoints active.
#ifdef CONFIG_ETRAX_KGDB
	move $ccs, $r0
	or.d (1<<9), $r0
	move $r0, $ccs
#endif

	jsr	crisv32_do_multiple
	move.d	$sp, $r10
	jump    ret_from_intr
	nop

do_sigtrap:
	;; Sigtraps the process that executed the BREAK instruction. Creates a
	;; frame that Rexit expects.
	subq	4, $sp
	move    $eda, [$sp]
	subq    4, $sp
	move    $exs, [$sp]
	subq    4, $sp
	move	$erp, [$sp]
	subq	4, $sp
	move	$srp, [$sp]
	subq	4, $sp
	move	$ccs, [$sp]
	subq	4, $sp
	move	$spc, [$sp]
	subq	4, $sp
	move	$mof, [$sp]
	subq	4, $sp
	move	$srs, [$sp]
	subq	4, $sp
	move.d	$acr, [$sp]
	di				; Need to disable irq's at this point.
	subq	14*4, $sp		; Make room for r0-r13.
	movem	$r13, [$sp]		; Push the r0-r13 registers.
	subq	4, $sp
	move.d	$r10, [$sp]		; Push orig_r10.

	movs.w	-8192, $r9		; THREAD_SIZE == 8192
	and.d	$sp, $r9

	;; thread_info as first parameter
	move.d  $r9, $r10
	moveq	5, $r11			; SIGTRAP as second argument.
	jsr	ugdb_trap_user
	nop
	jump	ret_from_intr		; Use the return routine for interrupts.
	nop

gdb_handle_exception:
	subq	4, $sp
	move.d	$r0, [$sp]
#ifdef CONFIG_ETRAX_KGDB
	move	$ccs, $r0		; U-flag not affected by previous insns.
	btstq	16, $r0			; Test the U-flag.
	bmi	_ugdb_handle_exception	; Go to user mode debugging.
	nop				; Empty delay-slot (cannot pop R0 here).
	ba	kgdb_handle_exception	; Go to kernel debugging.
	move.d	[$sp+], $r0		; Restore R0 in delay slot.
#endif

_ugdb_handle_exception:
	ba	do_sigtrap		; SIGTRAP the offending process.
	move.d	[$sp+], $r0		; Restore R0 in delay slot.

	.global kernel_execve
kernel_execve:
	move.d __NR_execve, $r9
	break 13
	ret
	nop

	.data

	.section .rodata,"a"
sys_call_table:
	.long sys_restart_syscall	; 0 - old "setup()" system call, used
					; for restarting.
	.long sys_exit
	.long sys_fork
	.long sys_read
	.long sys_write
	.long sys_open		/* 5 */
	.long sys_close
	.long sys_waitpid
	.long sys_creat
	.long sys_link
	.long sys_unlink	/* 10 */
	.long sys_execve
	.long sys_chdir
	.long sys_time
	.long sys_mknod
	.long sys_chmod		/* 15 */
	.long sys_lchown16
	.long sys_ni_syscall	/* old break syscall holder */
	.long sys_stat
	.long sys_lseek
	.long sys_getpid	/* 20 */
	.long sys_mount
	.long sys_oldumount
	.long sys_setuid16
	.long sys_getuid16
	.long sys_stime		/* 25 */
	.long sys_ptrace
	.long sys_alarm
	.long sys_fstat
	.long sys_pause
	.long sys_utime		/* 30 */
	.long sys_ni_syscall	/* old stty syscall holder */
	.long sys_ni_syscall	/* old gtty syscall holder */
	.long sys_access
	.long sys_nice
	.long sys_ni_syscall	/* 35  old ftime syscall holder */
	.long sys_sync
	.long sys_kill
	.long sys_rename
	.long sys_mkdir
	.long sys_rmdir		/* 40 */
	.long sys_dup
	.long sys_pipe
	.long sys_times
	.long sys_ni_syscall	/* old prof syscall holder */
	.long sys_brk		/* 45 */
	.long sys_setgid16
	.long sys_getgid16
	.long sys_signal
	.long sys_geteuid16
	.long sys_getegid16	/* 50 */
	.long sys_acct
	.long sys_umount	/* recycled never used phys( */
	.long sys_ni_syscall	/* old lock syscall holder */
	.long sys_ioctl
	.long sys_fcntl		/* 55 */
	.long sys_ni_syscall	/* old mpx syscall holder */
	.long sys_setpgid
	.long sys_ni_syscall	/* old ulimit syscall holder */
	.long sys_ni_syscall	/* old sys_olduname holder */
	.long sys_umask		/* 60 */
	.long sys_chroot
	.long sys_ustat
	.long sys_dup2
	.long sys_getppid
	.long sys_getpgrp	/* 65 */
	.long sys_setsid
	.long sys_sigaction
	.long sys_sgetmask
	.long sys_ssetmask
	.long sys_setreuid16	/* 70 */
	.long sys_setregid16
	.long sys_sigsuspend
	.long sys_sigpending
	.long sys_sethostname
	.long sys_setrlimit	/* 75 */
	.long sys_old_getrlimit
	.long sys_getrusage
	.long sys_gettimeofday
	.long sys_settimeofday
	.long sys_getgroups16	/* 80 */
	.long sys_setgroups16
	.long sys_select	/* was old_select in Linux/E100 */
	.long sys_symlink
	.long sys_lstat
	.long sys_readlink	/* 85 */
	.long sys_uselib
	.long sys_swapon
	.long sys_reboot
	.long old_readdir
	.long old_mmap		/* 90 */
	.long sys_munmap
	.long sys_truncate
	.long sys_ftruncate
	.long sys_fchmod
	.long sys_fchown16	/* 95 */
	.long sys_getpriority
	.long sys_setpriority
	.long sys_ni_syscall	/* old profil syscall holder */
	.long sys_statfs
	.long sys_fstatfs	/* 100 */
	.long sys_ni_syscall	/* sys_ioperm in i386 */
	.long sys_socketcall
	.long sys_syslog
	.long sys_setitimer
	.long sys_getitimer	/* 105 */
	.long sys_newstat
	.long sys_newlstat
	.long sys_newfstat
	.long sys_ni_syscall	/* old sys_uname holder */
	.long sys_ni_syscall	/* sys_iopl in i386 */
	.long sys_vhangup
	.long sys_ni_syscall	/* old "idle" system call */
	.long sys_ni_syscall	/* vm86old in i386 */
	.long sys_wait4
	.long sys_swapoff	/* 115 */
	.long sys_sysinfo
	.long sys_ipc
	.long sys_fsync
	.long sys_sigreturn
	.long sys_clone		/* 120 */
	.long sys_setdomainname
	.long sys_newuname
	.long sys_ni_syscall	/* sys_modify_ldt */
	.long sys_adjtimex
	.long sys_mprotect	/* 125 */
	.long sys_sigprocmask
	.long sys_ni_syscall	/* old "create_module" */
	.long sys_init_module
	.long sys_delete_module
	.long sys_ni_syscall	/* 130:	old "get_kernel_syms" */
	.long sys_quotactl
	.long sys_getpgid
	.long sys_fchdir
	.long sys_bdflush
	.long sys_sysfs		/* 135 */
	.long sys_personality
	.long sys_ni_syscall	/* for afs_syscall */
	.long sys_setfsuid16
	.long sys_setfsgid16
	.long sys_llseek	/* 140 */
	.long sys_getdents
	.long sys_select
	.long sys_flock
	.long sys_msync
	.long sys_readv		/* 145 */
	.long sys_writev
	.long sys_getsid
	.long sys_fdatasync
	.long sys_sysctl
	.long sys_mlock		/* 150 */
	.long sys_munlock
	.long sys_mlockall
	.long sys_munlockall
	.long sys_sched_setparam
	.long sys_sched_getparam	/* 155 */
	.long sys_sched_setscheduler
	.long sys_sched_getscheduler
	.long sys_sched_yield
	.long sys_sched_get_priority_max
	.long sys_sched_get_priority_min	/* 160 */
	.long sys_sched_rr_get_interval
	.long sys_nanosleep
	.long sys_mremap
	.long sys_setresuid16
	.long sys_getresuid16	/* 165 */
	.long sys_ni_syscall	/* sys_vm86 */
	.long sys_ni_syscall	/* Old sys_query_module */
	.long sys_poll
	.long sys_nfsservctl
	.long sys_setresgid16	/* 170 */
	.long sys_getresgid16
	.long sys_prctl
	.long sys_rt_sigreturn
	.long sys_rt_sigaction
	.long sys_rt_sigprocmask	/* 175 */
	.long sys_rt_sigpending
	.long sys_rt_sigtimedwait
	.long sys_rt_sigqueueinfo
	.long sys_rt_sigsuspend
	.long sys_pread64	/* 180 */
	.long sys_pwrite64
	.long sys_chown16
	.long sys_getcwd
	.long sys_capget
	.long sys_capset	/* 185 */
	.long sys_sigaltstack
	.long sys_sendfile
	.long sys_ni_syscall	/* streams1 */
	.long sys_ni_syscall	/* streams2 */
	.long sys_vfork		/* 190 */
	.long sys_getrlimit
	.long sys_mmap2
	.long sys_truncate64
	.long sys_ftruncate64
	.long sys_stat64	/* 195 */
	.long sys_lstat64
	.long sys_fstat64
	.long sys_lchown
	.long sys_getuid
	.long sys_getgid	/* 200 */
	.long sys_geteuid
	.long sys_getegid
	.long sys_setreuid
	.long sys_setregid
	.long sys_getgroups	/* 205 */
	.long sys_setgroups
	.long sys_fchown
	.long sys_setresuid
	.long sys_getresuid
	.long sys_setresgid	/* 210 */
	.long sys_getresgid
	.long sys_chown
	.long sys_setuid
	.long sys_setgid
	.long sys_setfsuid	/* 215 */
	.long sys_setfsgid
	.long sys_pivot_root
	.long sys_mincore
	.long sys_madvise
	.long sys_getdents64	/* 220 */
	.long sys_fcntl64
	.long sys_ni_syscall	/* reserved for TUX */
	.long sys_ni_syscall
	.long sys_gettid
	.long sys_readahead	/* 225 */
	.long sys_setxattr
	.long sys_lsetxattr
	.long sys_fsetxattr
	.long sys_getxattr
	.long sys_lgetxattr	/* 230 */
	.long sys_fgetxattr
	.long sys_listxattr
	.long sys_llistxattr
	.long sys_flistxattr
	.long sys_removexattr	/* 235 */
	.long sys_lremovexattr
	.long sys_fremovexattr
	.long sys_tkill
	.long sys_sendfile64
	.long sys_futex		/* 240 */
	.long sys_sched_setaffinity
	.long sys_sched_getaffinity
	.long sys_ni_syscall	/* sys_set_thread_area */
	.long sys_ni_syscall	/* sys_get_thread_area */
	.long sys_io_setup	/* 245 */
	.long sys_io_destroy
	.long sys_io_getevents
	.long sys_io_submit
	.long sys_io_cancel
	.long sys_fadvise64	/* 250 */
	.long sys_ni_syscall
	.long sys_exit_group
	.long sys_lookup_dcookie
	.long sys_epoll_create
	.long sys_epoll_ctl	/* 255 */
	.long sys_epoll_wait
	.long sys_remap_file_pages
	.long sys_set_tid_address
	.long sys_timer_create
	.long sys_timer_settime		/* 260 */
	.long sys_timer_gettime
	.long sys_timer_getoverrun
	.long sys_timer_delete
	.long sys_clock_settime
	.long sys_clock_gettime		/* 265 */
	.long sys_clock_getres
	.long sys_clock_nanosleep
	.long sys_statfs64
	.long sys_fstatfs64
	.long sys_tgkill	/* 270 */
	.long sys_utimes
	.long sys_fadvise64_64
	.long sys_ni_syscall	/* sys_vserver */
	.long sys_ni_syscall	/* sys_mbind */
	.long sys_ni_syscall	/* 275 sys_get_mempolicy */
	.long sys_ni_syscall	/* sys_set_mempolicy */
	.long sys_mq_open
	.long sys_mq_unlink
	.long sys_mq_timedsend
	.long sys_mq_timedreceive	/* 280 */
	.long sys_mq_notify
	.long sys_mq_getsetattr
	.long sys_ni_syscall		/* reserved for kexec */
	.long sys_waitid
	.long sys_ni_syscall		/* 285 */ /* available */
	.long sys_add_key
	.long sys_request_key
	.long sys_keyctl
	.long sys_ioprio_set
	.long sys_ioprio_get		/* 290 */
	.long sys_inotify_init
	.long sys_inotify_add_watch
	.long sys_inotify_rm_watch
	.long sys_migrate_pages
	.long sys_openat		/* 295 */
	.long sys_mkdirat
	.long sys_mknodat
	.long sys_fchownat
	.long sys_futimesat
	.long sys_fstatat64		/* 300 */
	.long sys_unlinkat
	.long sys_renameat
	.long sys_linkat
	.long sys_symlinkat
	.long sys_readlinkat		/* 305 */
	.long sys_fchmodat
	.long sys_faccessat
	.long sys_pselect6
	.long sys_ppoll
	.long sys_unshare		/* 310 */
	.long sys_set_robust_list
	.long sys_get_robust_list
	.long sys_splice
	.long sys_sync_file_range
	.long sys_tee			/* 315 */
	.long sys_vmsplice
	.long sys_move_pages
	.long sys_getcpu
	.long sys_epoll_pwait
	.long sys_utimensat		/* 320 */
	.long sys_signalfd
	.long sys_timerfd_create
	.long sys_eventfd
	.long sys_fallocate
	.long sys_timerfd_settime       /* 325 */
	.long sys_timerfd_gettime

        /*
         * NOTE!! This doesn't have to be exact - we just have
         * to make sure we have _enough_ of the "sys_ni_syscall"
         * entries. Don't panic if you notice that this hasn't
         * been shrunk every time we add a new system call.
         */

	.rept NR_syscalls - (.-sys_call_table) / 4
		.long sys_ni_syscall
	.endr