1 /*
2  *  linux/arch/i386/entry.S
3  *
4  *  Copyright (C) 1991, 1992  Linus Torvalds
5  */
6 
7 /*
8  * entry.S contains the system-call and fault low-level handling routines.
9  * This also contains the timer-interrupt handler, as well as all interrupts
10  * and faults that can result in a task-switch.
11  *
12  * NOTE: This code handles signal-recognition, which happens every time
13  * after a timer-interrupt and after each system call.
14  *
15  * I changed all the .align's to 4 (16 byte alignment), as that's faster
16  * on a 486.
17  *
18  * Stack layout in 'ret_from_system_call':
19  *      ptrace needs to have all regs on the stack.
20  *      if the order here is changed, it needs to be
21  *      updated in fork.c:copy_process, signal.c:do_signal,
22  *      ptrace.c and ptrace.h
23  *
24  *       0(%esp) - %ebx
25  *       4(%esp) - %ecx
26  *       8(%esp) - %edx
27  *       C(%esp) - %esi
28  *      10(%esp) - %edi
29  *      14(%esp) - %ebp
30  *      18(%esp) - %eax
31  *      1C(%esp) - %ds
32  *      20(%esp) - %es
33  *      24(%esp) - orig_eax
34  *      28(%esp) - %eip
35  *      2C(%esp) - %cs
36  *      30(%esp) - %eflags
37  *      34(%esp) - %oldesp
38  *      38(%esp) - %oldss
39  *
40  * "current" is in register %ebx during any slow entries.
41  */
42 
43 #include <linux/config.h>
44 #include <linux/sys.h>
45 #include <linux/linkage.h>
46 #include <asm/segment.h>
47 #include <asm/smp.h>
48 
49 EBX             = 0x00
50 ECX             = 0x04
51 EDX             = 0x08
52 ESI             = 0x0C
53 EDI             = 0x10
54 EBP             = 0x14
55 EAX             = 0x18
56 DS              = 0x1C
57 ES              = 0x20
58 ORIG_EAX        = 0x24
59 EIP             = 0x28
60 CS              = 0x2C
61 EFLAGS          = 0x30
62 OLDESP          = 0x34
63 OLDSS           = 0x38
64 
65 CF_MASK         = 0x00000001
66 IF_MASK         = 0x00000200
67 NT_MASK         = 0x00004000
68 VM_MASK         = 0x00020000
69 
70 /*
71  * these are offsets into the task-struct.
72  */
73 state           =  0
74 flags           =  4
75 sigpending      =  8
76 addr_limit      = 12
77 exec_domain     = 16
78 need_resched    = 20
79 tsk_ptrace      = 24
80 processor       = 52
81 
82 ENOSYS = 38
83 
84 
85 #define SAVE_ALL \
86         cld; \
87         pushl %es; \
88         pushl %ds; \
89         pushl %eax; \
90         pushl %ebp; \
91         pushl %edi; \
92         pushl %esi; \
93         pushl %edx; \
94         pushl %ecx; \
95         pushl %ebx; \
96         movl $(__KERNEL_DS),%edx; \
97         movl %edx,%ds; \
98         movl %edx,%es;
99 
100 #define RESTORE_ALL     \
101         popl %ebx;      \
102         popl %ecx;      \
103         popl %edx;      \
104         popl %esi;      \
105         popl %edi;      \
106         popl %ebp;      \
107         popl %eax;      \
108 1:      popl %ds;       \
109 2:      popl %es;       \
110         addl $4,%esp;   \
111 3:      iret;           \
112 .section .fixup,"ax";   \
113 4:      movl $0,(%esp); \
114         jmp 1b;         \
115 5:      movl $0,(%esp); \
116         jmp 2b;         \
117 6:      pushl %ss;      \
118         popl %ds;       \
119         pushl %ss;      \
120         popl %es;       \
121         pushl $11;      \
122         call do_exit;   \
123 .previous;              \
124 .section __ex_table,"a";\
125         .align 4;       \
126         .long 1b,4b;    \
127         .long 2b,5b;    \
128         .long 3b,6b;    \
129 .previous
130 
131 #define GET_CURRENT(reg) \
132         movl $-8192, reg; \
133         andl %esp, reg
134 
135 ENTRY(lcall7)
136         pushfl                  # We get a different stack layout with call gates,
137         pushl %eax              # which has to be cleaned up later..
138         SAVE_ALL
139         movl EIP(%esp),%eax     # due to call gates, this is eflags, not eip..
140         movl CS(%esp),%edx      # this is eip..
141         movl EFLAGS(%esp),%ecx  # and this is cs..
142         movl %eax,EFLAGS(%esp)  #
143         movl %edx,EIP(%esp)     # Now we move them to their "normal" places
144         movl %ecx,CS(%esp)      #
145         movl %esp,%ebx
146         pushl %ebx
147         andl $-8192,%ebx        # GET_CURRENT
148         movl exec_domain(%ebx),%edx     # Get the execution domain
149         movl 4(%edx),%edx       # Get the lcall7 handler for the domain
150         pushl $0x7
151         call *%edx
152         addl $4, %esp
153         popl %eax
154         jmp ret_from_sys_call
155 
156 ENTRY(lcall27)
157         pushfl                  # We get a different stack layout with call gates,
158         pushl %eax              # which has to be cleaned up later..
159         SAVE_ALL
160         movl EIP(%esp),%eax     # due to call gates, this is eflags, not eip..
161         movl CS(%esp),%edx      # this is eip..
162         movl EFLAGS(%esp),%ecx  # and this is cs..
163         movl %eax,EFLAGS(%esp)  #
164         movl %edx,EIP(%esp)     # Now we move them to their "normal" places
165         movl %ecx,CS(%esp)      #
166         movl %esp,%ebx
167         pushl %ebx
168         andl $-8192,%ebx        # GET_CURRENT
169         movl exec_domain(%ebx),%edx     # Get the execution domain
170         movl 4(%edx),%edx       # Get the lcall7 handler for the domain
171         pushl $0x27
172         call *%edx
173         addl $4, %esp
174         popl %eax
175         jmp ret_from_sys_call
176 
177 
178 ENTRY(ret_from_fork)
179         pushl %ebx
180         call SYMBOL_NAME(schedule_tail)
181         addl $4, %esp
182         GET_CURRENT(%ebx)
183         testb $0x02,tsk_ptrace(%ebx)    # PT_TRACESYS
184         jne tracesys_exit
185         jmp     ret_from_sys_call
186 
187 /*
188  * Return to user mode is not as complex as all this looks,
189  * but we want the default path for a system call return to
190  * go as quickly as possible which is why some of this is
191  * less clear than it otherwise should be.
192  */
193 
194 ENTRY(system_call)
195         pushl %eax                      # save orig_eax
196         SAVE_ALL
197         GET_CURRENT(%ebx)
198         testb $0x02,tsk_ptrace(%ebx)    # PT_TRACESYS
199         jne tracesys
200         cmpl $(NR_syscalls),%eax
201         jae badsys
202         call *SYMBOL_NAME(sys_call_table)(,%eax,4)
203         movl %eax,EAX(%esp)             # save the return value
204 ENTRY(ret_from_sys_call)
205         cli                             # need_resched and signals atomic test
206         cmpl $0,need_resched(%ebx)
207         jne reschedule
208         cmpl $0,sigpending(%ebx)
209         jne signal_return
210 restore_all:
211         RESTORE_ALL
212 
213         ALIGN
214 signal_return:
215         sti                             # we can get here from an interrupt handler
216         testl $(VM_MASK),EFLAGS(%esp)
217         movl %esp,%eax
218         jne v86_signal_return
219         xorl %edx,%edx
220         call SYMBOL_NAME(do_signal)
221         jmp restore_all
222 
223         ALIGN
224 v86_signal_return:
225         call SYMBOL_NAME(save_v86_state)
226         movl %eax,%esp
227         xorl %edx,%edx
228         call SYMBOL_NAME(do_signal)
229         jmp restore_all
230 
231         ALIGN
232 tracesys:
233         movl $-ENOSYS,EAX(%esp)
234         call SYMBOL_NAME(syscall_trace)
235         movl ORIG_EAX(%esp),%eax
236         cmpl $(NR_syscalls),%eax
237         jae tracesys_exit
238         call *SYMBOL_NAME(sys_call_table)(,%eax,4)
239         movl %eax,EAX(%esp)             # save the return value
240 tracesys_exit:
241         call SYMBOL_NAME(syscall_trace)
242         jmp ret_from_sys_call
243 badsys:
244         movl $-ENOSYS,EAX(%esp)
245         jmp ret_from_sys_call
246 
247         ALIGN
248 ENTRY(ret_from_intr)
249         GET_CURRENT(%ebx)
250 ret_from_exception:
251         movl EFLAGS(%esp),%eax          # mix EFLAGS and CS
252         movb CS(%esp),%al
253         testl $(VM_MASK | 3),%eax       # return to VM86 mode or non-supervisor?
254         jne ret_from_sys_call
255         jmp restore_all
256 
257         ALIGN
258 reschedule:
259         call SYMBOL_NAME(schedule)    # test
260         jmp ret_from_sys_call
261 
262 ENTRY(divide_error)
263         pushl $0                # no error code
264         pushl $ SYMBOL_NAME(do_divide_error)
265         ALIGN
266 error_code:
267         pushl %ds
268         pushl %eax
269         xorl %eax,%eax
270         pushl %ebp
271         pushl %edi
272         pushl %esi
273         pushl %edx
274         decl %eax                       # eax = -1
275         pushl %ecx
276         pushl %ebx
277         cld
278         movl %es,%ecx
279         movl ORIG_EAX(%esp), %esi       # get the error code
280         movl ES(%esp), %edi             # get the function address
281         movl %eax, ORIG_EAX(%esp)
282         movl %ecx, ES(%esp)
283         movl %esp,%edx
284         pushl %esi                      # push the error code
285         pushl %edx                      # push the pt_regs pointer
286         movl $(__KERNEL_DS),%edx
287         movl %edx,%ds
288         movl %edx,%es
289         GET_CURRENT(%ebx)
290         call *%edi
291         addl $8,%esp
292         jmp ret_from_exception
293 
294 ENTRY(coprocessor_error)
295         pushl $0
296         pushl $ SYMBOL_NAME(do_coprocessor_error)
297         jmp error_code
298 
299 ENTRY(simd_coprocessor_error)
300         pushl $0
301         pushl $ SYMBOL_NAME(do_simd_coprocessor_error)
302         jmp error_code
303 
304 ENTRY(device_not_available)
305         pushl $-1               # mark this as an int
306         SAVE_ALL
307         GET_CURRENT(%ebx)
308         movl %cr0,%eax
309         testl $0x4,%eax                 # EM (math emulation bit)
310         jne device_not_available_emulate
311         call SYMBOL_NAME(math_state_restore)
312         jmp ret_from_exception
313 device_not_available_emulate:
314         pushl $0                # temporary storage for ORIG_EIP
315         call  SYMBOL_NAME(math_emulate)
316         addl $4,%esp
317         jmp ret_from_exception
318 
319 ENTRY(debug)
320         pushl $0
321         pushl $ SYMBOL_NAME(do_debug)
322         jmp error_code
323 
324 ENTRY(nmi)
325         pushl %eax
326         SAVE_ALL
327         movl %esp,%edx
328         pushl $0
329         pushl %edx
330         call SYMBOL_NAME(do_nmi)
331         addl $8,%esp
332         RESTORE_ALL
333 
334 ENTRY(int3)
335         pushl $0
336         pushl $ SYMBOL_NAME(do_int3)
337         jmp error_code
338 
339 ENTRY(overflow)
340         pushl $0
341         pushl $ SYMBOL_NAME(do_overflow)
342         jmp error_code
343 
344 ENTRY(bounds)
345         pushl $0
346         pushl $ SYMBOL_NAME(do_bounds)
347         jmp error_code
348 
349 ENTRY(invalid_op)
350         pushl $0
351         pushl $ SYMBOL_NAME(do_invalid_op)
352         jmp error_code
353 
354 ENTRY(coprocessor_segment_overrun)
355         pushl $0
356         pushl $ SYMBOL_NAME(do_coprocessor_segment_overrun)
357         jmp error_code
358 
359 ENTRY(double_fault)
360         pushl $ SYMBOL_NAME(do_double_fault)
361         jmp error_code
362 
363 ENTRY(invalid_TSS)
364         pushl $ SYMBOL_NAME(do_invalid_TSS)
365         jmp error_code
366 
367 ENTRY(segment_not_present)
368         pushl $ SYMBOL_NAME(do_segment_not_present)
369         jmp error_code
370 
371 ENTRY(stack_segment)
372         pushl $ SYMBOL_NAME(do_stack_segment)
373         jmp error_code
374 
375 ENTRY(general_protection)
376         pushl $ SYMBOL_NAME(do_general_protection)
377         jmp error_code
378 
379 ENTRY(alignment_check)
380         pushl $ SYMBOL_NAME(do_alignment_check)
381         jmp error_code
382 
383 ENTRY(page_fault)
384         pushl $ SYMBOL_NAME(do_page_fault)
385         jmp error_code
386 
387 ENTRY(machine_check)
388         pushl $0
389         pushl $ SYMBOL_NAME(do_machine_check)
390         jmp error_code
391 
392 ENTRY(spurious_interrupt_bug)
393         pushl $0
394         pushl $ SYMBOL_NAME(do_spurious_interrupt_bug)
395         jmp error_code
396 
397 .data
398 ENTRY(sys_call_table)
399         .long SYMBOL_NAME(sys_ni_syscall)       /* 0  -  old "setup()" system call*/
400         .long SYMBOL_NAME(sys_exit)
401         .long SYMBOL_NAME(sys_fork)
402         .long SYMBOL_NAME(sys_read)
403         .long SYMBOL_NAME(sys_write)
404         .long SYMBOL_NAME(sys_open)             /* 5 */
405         .long SYMBOL_NAME(sys_close)
406         .long SYMBOL_NAME(sys_waitpid)
407         .long SYMBOL_NAME(sys_creat)
408         .long SYMBOL_NAME(sys_link)
409         .long SYMBOL_NAME(sys_unlink)           /* 10 */
410         .long SYMBOL_NAME(sys_execve)
411         .long SYMBOL_NAME(sys_chdir)
412         .long SYMBOL_NAME(sys_time)
413         .long SYMBOL_NAME(sys_mknod)
414         .long SYMBOL_NAME(sys_chmod)            /* 15 */
415         .long SYMBOL_NAME(sys_lchown16)
416         .long SYMBOL_NAME(sys_ni_syscall)                               /* old break syscall holder */
417         .long SYMBOL_NAME(sys_stat)
418         .long SYMBOL_NAME(sys_lseek)
419         .long SYMBOL_NAME(sys_getpid)           /* 20 */
420         .long SYMBOL_NAME(sys_mount)
421         .long SYMBOL_NAME(sys_oldumount)
422         .long SYMBOL_NAME(sys_setuid16)
423         .long SYMBOL_NAME(sys_getuid16)
424         .long SYMBOL_NAME(sys_stime)            /* 25 */
425         .long SYMBOL_NAME(sys_ptrace)
426         .long SYMBOL_NAME(sys_alarm)
427         .long SYMBOL_NAME(sys_fstat)
428         .long SYMBOL_NAME(sys_pause)
429         .long SYMBOL_NAME(sys_utime)            /* 30 */
430         .long SYMBOL_NAME(sys_ni_syscall)                               /* old stty syscall holder */
431         .long SYMBOL_NAME(sys_ni_syscall)                               /* old gtty syscall holder */
432         .long SYMBOL_NAME(sys_access)
433         .long SYMBOL_NAME(sys_nice)
434         .long SYMBOL_NAME(sys_ni_syscall)       /* 35 */                /* old ftime syscall holder */
435         .long SYMBOL_NAME(sys_sync)
436         .long SYMBOL_NAME(sys_kill)
437         .long SYMBOL_NAME(sys_rename)
438         .long SYMBOL_NAME(sys_mkdir)
439         .long SYMBOL_NAME(sys_rmdir)            /* 40 */
440         .long SYMBOL_NAME(sys_dup)
441         .long SYMBOL_NAME(sys_pipe)
442         .long SYMBOL_NAME(sys_times)
443         .long SYMBOL_NAME(sys_ni_syscall)                               /* old prof syscall holder */
444         .long SYMBOL_NAME(sys_brk)              /* 45 */
445         .long SYMBOL_NAME(sys_setgid16)
446         .long SYMBOL_NAME(sys_getgid16)
447         .long SYMBOL_NAME(sys_signal)
448         .long SYMBOL_NAME(sys_geteuid16)
449         .long SYMBOL_NAME(sys_getegid16)        /* 50 */
450         .long SYMBOL_NAME(sys_acct)
451         .long SYMBOL_NAME(sys_umount)                                   /* recycled never used phys() */
452         .long SYMBOL_NAME(sys_ni_syscall)                               /* old lock syscall holder */
453         .long SYMBOL_NAME(sys_ioctl)
454         .long SYMBOL_NAME(sys_fcntl)            /* 55 */
455         .long SYMBOL_NAME(sys_ni_syscall)                               /* old mpx syscall holder */
456         .long SYMBOL_NAME(sys_setpgid)
457         .long SYMBOL_NAME(sys_ni_syscall)                               /* old ulimit syscall holder */
458         .long SYMBOL_NAME(sys_olduname)
459         .long SYMBOL_NAME(sys_umask)            /* 60 */
460         .long SYMBOL_NAME(sys_chroot)
461         .long SYMBOL_NAME(sys_ustat)
462         .long SYMBOL_NAME(sys_dup2)
463         .long SYMBOL_NAME(sys_getppid)
464         .long SYMBOL_NAME(sys_getpgrp)          /* 65 */
465         .long SYMBOL_NAME(sys_setsid)
466         .long SYMBOL_NAME(sys_sigaction)
467         .long SYMBOL_NAME(sys_sgetmask)
468         .long SYMBOL_NAME(sys_ssetmask)
469         .long SYMBOL_NAME(sys_setreuid16)       /* 70 */
470         .long SYMBOL_NAME(sys_setregid16)
471         .long SYMBOL_NAME(sys_sigsuspend)
472         .long SYMBOL_NAME(sys_sigpending)
473         .long SYMBOL_NAME(sys_sethostname)
474         .long SYMBOL_NAME(sys_setrlimit)        /* 75 */
475         .long SYMBOL_NAME(sys_old_getrlimit)
476         .long SYMBOL_NAME(sys_getrusage)
477         .long SYMBOL_NAME(sys_gettimeofday)
478         .long SYMBOL_NAME(sys_settimeofday)
479         .long SYMBOL_NAME(sys_getgroups16)      /* 80 */
480         .long SYMBOL_NAME(sys_setgroups16)
481         .long SYMBOL_NAME(old_select)
482         .long SYMBOL_NAME(sys_symlink)
483         .long SYMBOL_NAME(sys_lstat)
484         .long SYMBOL_NAME(sys_readlink)         /* 85 */
485         .long SYMBOL_NAME(sys_uselib)
486         .long SYMBOL_NAME(sys_swapon)
487         .long SYMBOL_NAME(sys_reboot)
488         .long SYMBOL_NAME(old_readdir)
489         .long SYMBOL_NAME(old_mmap)             /* 90 */
490         .long SYMBOL_NAME(sys_munmap)
491         .long SYMBOL_NAME(sys_truncate)
492         .long SYMBOL_NAME(sys_ftruncate)
493         .long SYMBOL_NAME(sys_fchmod)
494         .long SYMBOL_NAME(sys_fchown16)         /* 95 */
495         .long SYMBOL_NAME(sys_getpriority)
496         .long SYMBOL_NAME(sys_setpriority)
497         .long SYMBOL_NAME(sys_ni_syscall)                               /* old profil syscall holder */
498         .long SYMBOL_NAME(sys_statfs)
499         .long SYMBOL_NAME(sys_fstatfs)          /* 100 */
500         .long SYMBOL_NAME(sys_ioperm)
501         .long SYMBOL_NAME(sys_socketcall)
502         .long SYMBOL_NAME(sys_syslog)
503         .long SYMBOL_NAME(sys_setitimer)
504         .long SYMBOL_NAME(sys_getitimer)        /* 105 */
505         .long SYMBOL_NAME(sys_newstat)
506         .long SYMBOL_NAME(sys_newlstat)
507         .long SYMBOL_NAME(sys_newfstat)
508         .long SYMBOL_NAME(sys_uname)
509         .long SYMBOL_NAME(sys_iopl)             /* 110 */
510         .long SYMBOL_NAME(sys_vhangup)
511         .long SYMBOL_NAME(sys_ni_syscall)       /* old "idle" system call */
512         .long SYMBOL_NAME(sys_vm86old)
513         .long SYMBOL_NAME(sys_wait4)
514         .long SYMBOL_NAME(sys_swapoff)          /* 115 */
515         .long SYMBOL_NAME(sys_sysinfo)
516         .long SYMBOL_NAME(sys_ipc)
517         .long SYMBOL_NAME(sys_fsync)
518         .long SYMBOL_NAME(sys_sigreturn)
519         .long SYMBOL_NAME(sys_clone)            /* 120 */
520         .long SYMBOL_NAME(sys_setdomainname)
521         .long SYMBOL_NAME(sys_newuname)
522         .long SYMBOL_NAME(sys_modify_ldt)
523         .long SYMBOL_NAME(sys_adjtimex)
524         .long SYMBOL_NAME(sys_mprotect)         /* 125 */
525         .long SYMBOL_NAME(sys_sigprocmask)
526         .long SYMBOL_NAME(sys_create_module)
527         .long SYMBOL_NAME(sys_init_module)
528         .long SYMBOL_NAME(sys_delete_module)
529         .long SYMBOL_NAME(sys_get_kernel_syms)  /* 130 */
530         .long SYMBOL_NAME(sys_quotactl)
531         .long SYMBOL_NAME(sys_getpgid)
532         .long SYMBOL_NAME(sys_fchdir)
533         .long SYMBOL_NAME(sys_bdflush)
534         .long SYMBOL_NAME(sys_sysfs)            /* 135 */
535         .long SYMBOL_NAME(sys_personality)
536         .long SYMBOL_NAME(sys_ni_syscall)       /* for afs_syscall */
537         .long SYMBOL_NAME(sys_setfsuid16)
538         .long SYMBOL_NAME(sys_setfsgid16)
539         .long SYMBOL_NAME(sys_llseek)           /* 140 */
540         .long SYMBOL_NAME(sys_getdents)
541         .long SYMBOL_NAME(sys_select)
542         .long SYMBOL_NAME(sys_flock)
543         .long SYMBOL_NAME(sys_msync)
544         .long SYMBOL_NAME(sys_readv)            /* 145 */
545         .long SYMBOL_NAME(sys_writev)
546         .long SYMBOL_NAME(sys_getsid)
547         .long SYMBOL_NAME(sys_fdatasync)
548         .long SYMBOL_NAME(sys_sysctl)
549         .long SYMBOL_NAME(sys_mlock)            /* 150 */
550         .long SYMBOL_NAME(sys_munlock)
551         .long SYMBOL_NAME(sys_mlockall)
552         .long SYMBOL_NAME(sys_munlockall)
553         .long SYMBOL_NAME(sys_sched_setparam)
554         .long SYMBOL_NAME(sys_sched_getparam)   /* 155 */
555         .long SYMBOL_NAME(sys_sched_setscheduler)
556         .long SYMBOL_NAME(sys_sched_getscheduler)
557         .long SYMBOL_NAME(sys_sched_yield)
558         .long SYMBOL_NAME(sys_sched_get_priority_max)
559         .long SYMBOL_NAME(sys_sched_get_priority_min)  /* 160 */
560         .long SYMBOL_NAME(sys_sched_rr_get_interval)
561         .long SYMBOL_NAME(sys_nanosleep)
562         .long SYMBOL_NAME(sys_mremap)
563         .long SYMBOL_NAME(sys_setresuid16)
564         .long SYMBOL_NAME(sys_getresuid16)      /* 165 */
565         .long SYMBOL_NAME(sys_vm86)
566         .long SYMBOL_NAME(sys_query_module)
567         .long SYMBOL_NAME(sys_poll)
568         .long SYMBOL_NAME(sys_nfsservctl)
569         .long SYMBOL_NAME(sys_setresgid16)      /* 170 */
570         .long SYMBOL_NAME(sys_getresgid16)
571         .long SYMBOL_NAME(sys_prctl)
572         .long SYMBOL_NAME(sys_rt_sigreturn)
573         .long SYMBOL_NAME(sys_rt_sigaction)
574         .long SYMBOL_NAME(sys_rt_sigprocmask)   /* 175 */
575         .long SYMBOL_NAME(sys_rt_sigpending)
576         .long SYMBOL_NAME(sys_rt_sigtimedwait)
577         .long SYMBOL_NAME(sys_rt_sigqueueinfo)
578         .long SYMBOL_NAME(sys_rt_sigsuspend)
579         .long SYMBOL_NAME(sys_pread)            /* 180 */
580         .long SYMBOL_NAME(sys_pwrite)
581         .long SYMBOL_NAME(sys_chown16)
582         .long SYMBOL_NAME(sys_getcwd)
583         .long SYMBOL_NAME(sys_capget)
584         .long SYMBOL_NAME(sys_capset)           /* 185 */
585         .long SYMBOL_NAME(sys_sigaltstack)
586         .long SYMBOL_NAME(sys_sendfile)
587         .long SYMBOL_NAME(sys_ni_syscall)               /* streams1 */
588         .long SYMBOL_NAME(sys_ni_syscall)               /* streams2 */
589         .long SYMBOL_NAME(sys_vfork)            /* 190 */
590         .long SYMBOL_NAME(sys_getrlimit)
591         .long SYMBOL_NAME(sys_mmap2)
592         .long SYMBOL_NAME(sys_truncate64)
593         .long SYMBOL_NAME(sys_ftruncate64)
594         .long SYMBOL_NAME(sys_stat64)           /* 195 */
595         .long SYMBOL_NAME(sys_lstat64)
596         .long SYMBOL_NAME(sys_fstat64)
597         .long SYMBOL_NAME(sys_lchown)
598         .long SYMBOL_NAME(sys_getuid)
599         .long SYMBOL_NAME(sys_getgid)           /* 200 */
600         .long SYMBOL_NAME(sys_geteuid)
601         .long SYMBOL_NAME(sys_getegid)
602         .long SYMBOL_NAME(sys_setreuid)
603         .long SYMBOL_NAME(sys_setregid)
604         .long SYMBOL_NAME(sys_getgroups)        /* 205 */
605         .long SYMBOL_NAME(sys_setgroups)
606         .long SYMBOL_NAME(sys_fchown)
607         .long SYMBOL_NAME(sys_setresuid)
608         .long SYMBOL_NAME(sys_getresuid)
609         .long SYMBOL_NAME(sys_setresgid)        /* 210 */
610         .long SYMBOL_NAME(sys_getresgid)
611         .long SYMBOL_NAME(sys_chown)
612         .long SYMBOL_NAME(sys_setuid)
613         .long SYMBOL_NAME(sys_setgid)
614         .long SYMBOL_NAME(sys_setfsuid)         /* 215 */
615         .long SYMBOL_NAME(sys_setfsgid)
616         .long SYMBOL_NAME(sys_pivot_root)
617         .long SYMBOL_NAME(sys_mincore)
618         .long SYMBOL_NAME(sys_madvise)
619         .long SYMBOL_NAME(sys_getdents64)       /* 220 */
620         .long SYMBOL_NAME(sys_fcntl64)
621         .long SYMBOL_NAME(sys_ni_syscall)       /* reserved for TUX */
622         .long SYMBOL_NAME(sys_ni_syscall)       /* Reserved for Security */
623         .long SYMBOL_NAME(sys_gettid)
624         .long SYMBOL_NAME(sys_readahead)        /* 225 */
625         .long SYMBOL_NAME(sys_ni_syscall)       /* reserved for setxattr */
626         .long SYMBOL_NAME(sys_ni_syscall)       /* reserved for lsetxattr */
627         .long SYMBOL_NAME(sys_ni_syscall)       /* reserved for fsetxattr */
628         .long SYMBOL_NAME(sys_ni_syscall)       /* reserved for getxattr */
629         .long SYMBOL_NAME(sys_ni_syscall)       /* 230 reserved for lgetxattr */
630         .long SYMBOL_NAME(sys_ni_syscall)       /* reserved for fgetxattr */
631         .long SYMBOL_NAME(sys_ni_syscall)       /* reserved for listxattr */
632         .long SYMBOL_NAME(sys_ni_syscall)       /* reserved for llistxattr */
633         .long SYMBOL_NAME(sys_ni_syscall)       /* reserved for flistxattr */
634         .long SYMBOL_NAME(sys_ni_syscall)       /* 235 reserved for removexattr */
635         .long SYMBOL_NAME(sys_ni_syscall)       /* reserved for lremovexattr */
636         .long SYMBOL_NAME(sys_ni_syscall)       /* reserved for fremovexattr */
637 
638         .rept NR_syscalls-(.-sys_call_table)/4
639                 .long SYMBOL_NAME(sys_ni_syscall)
640         .endr