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FreeBSD/Linux Kernel Cross Reference
sys/arch/i386/kernel/entry.S

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    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 TF_MASK         = 0x00000100
   67 IF_MASK         = 0x00000200
   68 DF_MASK         = 0x00000400
   69 NT_MASK         = 0x00004000
   70 VM_MASK         = 0x00020000
   71 
   72 /*
   73  * these are offsets into the task-struct.
   74  */
   75 state           =  0
   76 flags           =  4
   77 sigpending      =  8
   78 addr_limit      = 12
   79 exec_domain     = 16
   80 need_resched    = 20
   81 tsk_ptrace      = 24
   82 processor       = 52
   83 
   84 ENOSYS = 38
   85 
   86 
   87 #define SAVE_ALL \
   88         cld; \
   89         pushl %es; \
   90         pushl %ds; \
   91         pushl %eax; \
   92         pushl %ebp; \
   93         pushl %edi; \
   94         pushl %esi; \
   95         pushl %edx; \
   96         pushl %ecx; \
   97         pushl %ebx; \
   98         movl $(__KERNEL_DS),%edx; \
   99         movl %edx,%ds; \
  100         movl %edx,%es;
  101 
  102 #define RESTORE_ALL     \
  103         popl %ebx;      \
  104         popl %ecx;      \
  105         popl %edx;      \
  106         popl %esi;      \
  107         popl %edi;      \
  108         popl %ebp;      \
  109         popl %eax;      \
  110 1:      popl %ds;       \
  111 2:      popl %es;       \
  112         addl $4,%esp;   \
  113 3:      iret;           \
  114 .section .fixup,"ax";   \
  115 4:      movl $0,(%esp); \
  116         jmp 1b;         \
  117 5:      movl $0,(%esp); \
  118         jmp 2b;         \
  119 6:      pushl %ss;      \
  120         popl %ds;       \
  121         pushl %ss;      \
  122         popl %es;       \
  123         pushl $11;      \
  124         call do_exit;   \
  125 .previous;              \
  126 .section __ex_table,"a";\
  127         .align 4;       \
  128         .long 1b,4b;    \
  129         .long 2b,5b;    \
  130         .long 3b,6b;    \
  131 .previous
  132 
  133 #define GET_CURRENT(reg) \
  134         movl $-8192, reg; \
  135         andl %esp, reg
  136 
  137 ENTRY(lcall7)
  138         pushfl                  # We get a different stack layout with call gates,
  139         pushl %eax              # which has to be cleaned up later..
  140         SAVE_ALL
  141         movl EIP(%esp),%eax     # due to call gates, this is eflags, not eip..
  142         movl CS(%esp),%edx      # this is eip..
  143         movl EFLAGS(%esp),%ecx  # and this is cs..
  144         movl %eax,EFLAGS(%esp)  #
  145         andl $~(NT_MASK|TF_MASK|DF_MASK), %eax
  146         pushl %eax
  147         popfl
  148         movl %edx,EIP(%esp)     # Now we move them to their "normal" places
  149         movl %ecx,CS(%esp)      #
  150         movl %esp,%ebx
  151         pushl %ebx
  152         andl $-8192,%ebx        # GET_CURRENT
  153         movl exec_domain(%ebx),%edx     # Get the execution domain
  154         movl 4(%edx),%edx       # Get the lcall7 handler for the domain
  155         pushl $0x7
  156         call *%edx
  157         addl $4, %esp
  158         popl %eax
  159         jmp ret_from_sys_call
  160 
  161 ENTRY(lcall27)
  162         pushfl                  # We get a different stack layout with call gates,
  163         pushl %eax              # which has to be cleaned up later..
  164         SAVE_ALL
  165         movl EIP(%esp),%eax     # due to call gates, this is eflags, not eip..
  166         movl CS(%esp),%edx      # this is eip..
  167         movl EFLAGS(%esp),%ecx  # and this is cs..
  168         movl %eax,EFLAGS(%esp)  #
  169         andl $~(NT_MASK|TF_MASK|DF_MASK), %eax
  170         pushl %eax
  171         popfl
  172         movl %edx,EIP(%esp)     # Now we move them to their "normal" places
  173         movl %ecx,CS(%esp)      #
  174         movl %esp,%ebx
  175         pushl %ebx
  176         andl $-8192,%ebx        # GET_CURRENT
  177         movl exec_domain(%ebx),%edx     # Get the execution domain
  178         movl 4(%edx),%edx       # Get the lcall7 handler for the domain
  179         pushl $0x27
  180         call *%edx
  181         addl $4, %esp
  182         popl %eax
  183         jmp ret_from_sys_call
  184 
  185 
  186 ENTRY(ret_from_fork)
  187         pushl %ebx
  188         call SYMBOL_NAME(schedule_tail)
  189         addl $4, %esp
  190         GET_CURRENT(%ebx)
  191         testb $0x02,tsk_ptrace(%ebx)    # PT_TRACESYS
  192         jne tracesys_exit
  193         jmp     ret_from_sys_call
  194 
  195 /*
  196  * Return to user mode is not as complex as all this looks,
  197  * but we want the default path for a system call return to
  198  * go as quickly as possible which is why some of this is
  199  * less clear than it otherwise should be.
  200  */
  201 
  202 ENTRY(system_call)
  203         pushl %eax                      # save orig_eax
  204         SAVE_ALL
  205         GET_CURRENT(%ebx)
  206         testb $0x02,tsk_ptrace(%ebx)    # PT_TRACESYS
  207         jne tracesys
  208         cmpl $(NR_syscalls),%eax
  209         jae badsys
  210         call *SYMBOL_NAME(sys_call_table)(,%eax,4)
  211         movl %eax,EAX(%esp)             # save the return value
  212 ENTRY(ret_from_sys_call)
  213         cli                             # need_resched and signals atomic test
  214         cmpl $0,need_resched(%ebx)
  215         jne reschedule
  216         cmpl $0,sigpending(%ebx)
  217         jne signal_return
  218 restore_all:
  219         RESTORE_ALL
  220 
  221         ALIGN
  222 signal_return:
  223         sti                             # we can get here from an interrupt handler
  224         testl $(VM_MASK),EFLAGS(%esp)
  225         movl %esp,%eax
  226         jne v86_signal_return
  227         xorl %edx,%edx
  228         call SYMBOL_NAME(do_signal)
  229         jmp restore_all
  230 
  231         ALIGN
  232 v86_signal_return:
  233         call SYMBOL_NAME(save_v86_state)
  234         movl %eax,%esp
  235         xorl %edx,%edx
  236         call SYMBOL_NAME(do_signal)
  237         jmp restore_all
  238 
  239         ALIGN
  240 tracesys:
  241         movl $-ENOSYS,EAX(%esp)
  242         call SYMBOL_NAME(syscall_trace)
  243         movl ORIG_EAX(%esp),%eax
  244         cmpl $(NR_syscalls),%eax
  245         jae tracesys_exit
  246         call *SYMBOL_NAME(sys_call_table)(,%eax,4)
  247         movl %eax,EAX(%esp)             # save the return value
  248 tracesys_exit:
  249         call SYMBOL_NAME(syscall_trace)
  250         jmp ret_from_sys_call
  251 badsys:
  252         movl $-ENOSYS,EAX(%esp)
  253         jmp ret_from_sys_call
  254 
  255         ALIGN
  256 ENTRY(ret_from_intr)
  257         GET_CURRENT(%ebx)
  258 ret_from_exception:
  259         movl EFLAGS(%esp),%eax          # mix EFLAGS and CS
  260         movb CS(%esp),%al
  261         testl $(VM_MASK | 3),%eax       # return to VM86 mode or non-supervisor?
  262         jne ret_from_sys_call
  263         jmp restore_all
  264 
  265         ALIGN
  266 reschedule:
  267         call SYMBOL_NAME(schedule)    # test
  268         jmp ret_from_sys_call
  269 
  270 ENTRY(divide_error)
  271         pushl $0                # no error code
  272         pushl $ SYMBOL_NAME(do_divide_error)
  273         ALIGN
  274 error_code:
  275         pushl %ds
  276         pushl %eax
  277         xorl %eax,%eax
  278         pushl %ebp
  279         pushl %edi
  280         pushl %esi
  281         pushl %edx
  282         decl %eax                       # eax = -1
  283         pushl %ecx
  284         pushl %ebx
  285         cld
  286         movl %es,%ecx
  287         movl ORIG_EAX(%esp), %esi       # get the error code
  288         movl ES(%esp), %edi             # get the function address
  289         movl %eax, ORIG_EAX(%esp)
  290         movl %ecx, ES(%esp)
  291         movl %esp,%edx
  292         pushl %esi                      # push the error code
  293         pushl %edx                      # push the pt_regs pointer
  294         movl $(__KERNEL_DS),%edx
  295         movl %edx,%ds
  296         movl %edx,%es
  297         GET_CURRENT(%ebx)
  298         call *%edi
  299         addl $8,%esp
  300         jmp ret_from_exception
  301 
  302 ENTRY(coprocessor_error)
  303         pushl $0
  304         pushl $ SYMBOL_NAME(do_coprocessor_error)
  305         jmp error_code
  306 
  307 ENTRY(simd_coprocessor_error)
  308         pushl $0
  309         pushl $ SYMBOL_NAME(do_simd_coprocessor_error)
  310         jmp error_code
  311 
  312 ENTRY(device_not_available)
  313         pushl $-1               # mark this as an int
  314         SAVE_ALL
  315         GET_CURRENT(%ebx)
  316         movl %cr0,%eax
  317         testl $0x4,%eax                 # EM (math emulation bit)
  318         jne device_not_available_emulate
  319         call SYMBOL_NAME(math_state_restore)
  320         jmp ret_from_exception
  321 device_not_available_emulate:
  322         pushl $0                # temporary storage for ORIG_EIP
  323         call  SYMBOL_NAME(math_emulate)
  324         addl $4,%esp
  325         jmp ret_from_exception
  326 
  327 ENTRY(debug)
  328         pushl $0
  329         pushl $ SYMBOL_NAME(do_debug)
  330         jmp error_code
  331 
  332 ENTRY(nmi)
  333         pushl %eax
  334         SAVE_ALL
  335         movl %esp,%edx
  336         pushl $0
  337         pushl %edx
  338         call SYMBOL_NAME(do_nmi)
  339         addl $8,%esp
  340         RESTORE_ALL
  341 
  342 ENTRY(int3)
  343         pushl $0
  344         pushl $ SYMBOL_NAME(do_int3)
  345         jmp error_code
  346 
  347 ENTRY(overflow)
  348         pushl $0
  349         pushl $ SYMBOL_NAME(do_overflow)
  350         jmp error_code
  351 
  352 ENTRY(bounds)
  353         pushl $0
  354         pushl $ SYMBOL_NAME(do_bounds)
  355         jmp error_code
  356 
  357 ENTRY(invalid_op)
  358         pushl $0
  359         pushl $ SYMBOL_NAME(do_invalid_op)
  360         jmp error_code
  361 
  362 ENTRY(coprocessor_segment_overrun)
  363         pushl $0
  364         pushl $ SYMBOL_NAME(do_coprocessor_segment_overrun)
  365         jmp error_code
  366 
  367 ENTRY(double_fault)
  368         pushl $ SYMBOL_NAME(do_double_fault)
  369         jmp error_code
  370 
  371 ENTRY(invalid_TSS)
  372         pushl $ SYMBOL_NAME(do_invalid_TSS)
  373         jmp error_code
  374 
  375 ENTRY(segment_not_present)
  376         pushl $ SYMBOL_NAME(do_segment_not_present)
  377         jmp error_code
  378 
  379 ENTRY(stack_segment)
  380         pushl $ SYMBOL_NAME(do_stack_segment)
  381         jmp error_code
  382 
  383 ENTRY(general_protection)
  384         pushl $ SYMBOL_NAME(do_general_protection)
  385         jmp error_code
  386 
  387 ENTRY(alignment_check)
  388         pushl $ SYMBOL_NAME(do_alignment_check)
  389         jmp error_code
  390 
  391 ENTRY(page_fault)
  392         pushl $ SYMBOL_NAME(do_page_fault)
  393         jmp error_code
  394 
  395 ENTRY(machine_check)
  396         pushl $0
  397         pushl $ SYMBOL_NAME(do_machine_check)
  398         jmp error_code
  399 
  400 ENTRY(spurious_interrupt_bug)
  401         pushl $0
  402         pushl $ SYMBOL_NAME(do_spurious_interrupt_bug)
  403         jmp error_code
  404 
  405 .data
  406 ENTRY(sys_call_table)
  407         .long SYMBOL_NAME(sys_ni_syscall)       /* 0  -  old "setup()" system call*/
  408         .long SYMBOL_NAME(sys_exit)
  409         .long SYMBOL_NAME(sys_fork)
  410         .long SYMBOL_NAME(sys_read)
  411         .long SYMBOL_NAME(sys_write)
  412         .long SYMBOL_NAME(sys_open)             /* 5 */
  413         .long SYMBOL_NAME(sys_close)
  414         .long SYMBOL_NAME(sys_waitpid)
  415         .long SYMBOL_NAME(sys_creat)
  416         .long SYMBOL_NAME(sys_link)
  417         .long SYMBOL_NAME(sys_unlink)           /* 10 */
  418         .long SYMBOL_NAME(sys_execve)
  419         .long SYMBOL_NAME(sys_chdir)
  420         .long SYMBOL_NAME(sys_time)
  421         .long SYMBOL_NAME(sys_mknod)
  422         .long SYMBOL_NAME(sys_chmod)            /* 15 */
  423         .long SYMBOL_NAME(sys_lchown16)
  424         .long SYMBOL_NAME(sys_ni_syscall)                               /* old break syscall holder */
  425         .long SYMBOL_NAME(sys_stat)
  426         .long SYMBOL_NAME(sys_lseek)
  427         .long SYMBOL_NAME(sys_getpid)           /* 20 */
  428         .long SYMBOL_NAME(sys_mount)
  429         .long SYMBOL_NAME(sys_oldumount)
  430         .long SYMBOL_NAME(sys_setuid16)
  431         .long SYMBOL_NAME(sys_getuid16)
  432         .long SYMBOL_NAME(sys_stime)            /* 25 */
  433         .long SYMBOL_NAME(sys_ptrace)
  434         .long SYMBOL_NAME(sys_alarm)
  435         .long SYMBOL_NAME(sys_fstat)
  436         .long SYMBOL_NAME(sys_pause)
  437         .long SYMBOL_NAME(sys_utime)            /* 30 */
  438         .long SYMBOL_NAME(sys_ni_syscall)                               /* old stty syscall holder */
  439         .long SYMBOL_NAME(sys_ni_syscall)                               /* old gtty syscall holder */
  440         .long SYMBOL_NAME(sys_access)
  441         .long SYMBOL_NAME(sys_nice)
  442         .long SYMBOL_NAME(sys_ni_syscall)       /* 35 */                /* old ftime syscall holder */
  443         .long SYMBOL_NAME(sys_sync)
  444         .long SYMBOL_NAME(sys_kill)
  445         .long SYMBOL_NAME(sys_rename)
  446         .long SYMBOL_NAME(sys_mkdir)
  447         .long SYMBOL_NAME(sys_rmdir)            /* 40 */
  448         .long SYMBOL_NAME(sys_dup)
  449         .long SYMBOL_NAME(sys_pipe)
  450         .long SYMBOL_NAME(sys_times)
  451         .long SYMBOL_NAME(sys_ni_syscall)                               /* old prof syscall holder */
  452         .long SYMBOL_NAME(sys_brk)              /* 45 */
  453         .long SYMBOL_NAME(sys_setgid16)
  454         .long SYMBOL_NAME(sys_getgid16)
  455         .long SYMBOL_NAME(sys_signal)
  456         .long SYMBOL_NAME(sys_geteuid16)
  457         .long SYMBOL_NAME(sys_getegid16)        /* 50 */
  458         .long SYMBOL_NAME(sys_acct)
  459         .long SYMBOL_NAME(sys_umount)                                   /* recycled never used phys() */
  460         .long SYMBOL_NAME(sys_ni_syscall)                               /* old lock syscall holder */
  461         .long SYMBOL_NAME(sys_ioctl)
  462         .long SYMBOL_NAME(sys_fcntl)            /* 55 */
  463         .long SYMBOL_NAME(sys_ni_syscall)                               /* old mpx syscall holder */
  464         .long SYMBOL_NAME(sys_setpgid)
  465         .long SYMBOL_NAME(sys_ni_syscall)                               /* old ulimit syscall holder */
  466         .long SYMBOL_NAME(sys_olduname)
  467         .long SYMBOL_NAME(sys_umask)            /* 60 */
  468         .long SYMBOL_NAME(sys_chroot)
  469         .long SYMBOL_NAME(sys_ustat)
  470         .long SYMBOL_NAME(sys_dup2)
  471         .long SYMBOL_NAME(sys_getppid)
  472         .long SYMBOL_NAME(sys_getpgrp)          /* 65 */
  473         .long SYMBOL_NAME(sys_setsid)
  474         .long SYMBOL_NAME(sys_sigaction)
  475         .long SYMBOL_NAME(sys_sgetmask)
  476         .long SYMBOL_NAME(sys_ssetmask)
  477         .long SYMBOL_NAME(sys_setreuid16)       /* 70 */
  478         .long SYMBOL_NAME(sys_setregid16)
  479         .long SYMBOL_NAME(sys_sigsuspend)
  480         .long SYMBOL_NAME(sys_sigpending)
  481         .long SYMBOL_NAME(sys_sethostname)
  482         .long SYMBOL_NAME(sys_setrlimit)        /* 75 */
  483         .long SYMBOL_NAME(sys_old_getrlimit)
  484         .long SYMBOL_NAME(sys_getrusage)
  485         .long SYMBOL_NAME(sys_gettimeofday)
  486         .long SYMBOL_NAME(sys_settimeofday)
  487         .long SYMBOL_NAME(sys_getgroups16)      /* 80 */
  488         .long SYMBOL_NAME(sys_setgroups16)
  489         .long SYMBOL_NAME(old_select)
  490         .long SYMBOL_NAME(sys_symlink)
  491         .long SYMBOL_NAME(sys_lstat)
  492         .long SYMBOL_NAME(sys_readlink)         /* 85 */
  493         .long SYMBOL_NAME(sys_uselib)
  494         .long SYMBOL_NAME(sys_swapon)
  495         .long SYMBOL_NAME(sys_reboot)
  496         .long SYMBOL_NAME(old_readdir)
  497         .long SYMBOL_NAME(old_mmap)             /* 90 */
  498         .long SYMBOL_NAME(sys_munmap)
  499         .long SYMBOL_NAME(sys_truncate)
  500         .long SYMBOL_NAME(sys_ftruncate)
  501         .long SYMBOL_NAME(sys_fchmod)
  502         .long SYMBOL_NAME(sys_fchown16)         /* 95 */
  503         .long SYMBOL_NAME(sys_getpriority)
  504         .long SYMBOL_NAME(sys_setpriority)
  505         .long SYMBOL_NAME(sys_ni_syscall)                               /* old profil syscall holder */
  506         .long SYMBOL_NAME(sys_statfs)
  507         .long SYMBOL_NAME(sys_fstatfs)          /* 100 */
  508         .long SYMBOL_NAME(sys_ioperm)
  509         .long SYMBOL_NAME(sys_socketcall)
  510         .long SYMBOL_NAME(sys_syslog)
  511         .long SYMBOL_NAME(sys_setitimer)
  512         .long SYMBOL_NAME(sys_getitimer)        /* 105 */
  513         .long SYMBOL_NAME(sys_newstat)
  514         .long SYMBOL_NAME(sys_newlstat)
  515         .long SYMBOL_NAME(sys_newfstat)
  516         .long SYMBOL_NAME(sys_uname)
  517         .long SYMBOL_NAME(sys_iopl)             /* 110 */
  518         .long SYMBOL_NAME(sys_vhangup)
  519         .long SYMBOL_NAME(sys_ni_syscall)       /* old "idle" system call */
  520         .long SYMBOL_NAME(sys_vm86old)
  521         .long SYMBOL_NAME(sys_wait4)
  522         .long SYMBOL_NAME(sys_swapoff)          /* 115 */
  523         .long SYMBOL_NAME(sys_sysinfo)
  524         .long SYMBOL_NAME(sys_ipc)
  525         .long SYMBOL_NAME(sys_fsync)
  526         .long SYMBOL_NAME(sys_sigreturn)
  527         .long SYMBOL_NAME(sys_clone)            /* 120 */
  528         .long SYMBOL_NAME(sys_setdomainname)
  529         .long SYMBOL_NAME(sys_newuname)
  530         .long SYMBOL_NAME(sys_modify_ldt)
  531         .long SYMBOL_NAME(sys_adjtimex)
  532         .long SYMBOL_NAME(sys_mprotect)         /* 125 */
  533         .long SYMBOL_NAME(sys_sigprocmask)
  534         .long SYMBOL_NAME(sys_create_module)
  535         .long SYMBOL_NAME(sys_init_module)
  536         .long SYMBOL_NAME(sys_delete_module)
  537         .long SYMBOL_NAME(sys_get_kernel_syms)  /* 130 */
  538         .long SYMBOL_NAME(sys_quotactl)
  539         .long SYMBOL_NAME(sys_getpgid)
  540         .long SYMBOL_NAME(sys_fchdir)
  541         .long SYMBOL_NAME(sys_bdflush)
  542         .long SYMBOL_NAME(sys_sysfs)            /* 135 */
  543         .long SYMBOL_NAME(sys_personality)
  544         .long SYMBOL_NAME(sys_ni_syscall)       /* for afs_syscall */
  545         .long SYMBOL_NAME(sys_setfsuid16)
  546         .long SYMBOL_NAME(sys_setfsgid16)
  547         .long SYMBOL_NAME(sys_llseek)           /* 140 */
  548         .long SYMBOL_NAME(sys_getdents)
  549         .long SYMBOL_NAME(sys_select)
  550         .long SYMBOL_NAME(sys_flock)
  551         .long SYMBOL_NAME(sys_msync)
  552         .long SYMBOL_NAME(sys_readv)            /* 145 */
  553         .long SYMBOL_NAME(sys_writev)
  554         .long SYMBOL_NAME(sys_getsid)
  555         .long SYMBOL_NAME(sys_fdatasync)
  556         .long SYMBOL_NAME(sys_sysctl)
  557         .long SYMBOL_NAME(sys_mlock)            /* 150 */
  558         .long SYMBOL_NAME(sys_munlock)
  559         .long SYMBOL_NAME(sys_mlockall)
  560         .long SYMBOL_NAME(sys_munlockall)
  561         .long SYMBOL_NAME(sys_sched_setparam)
  562         .long SYMBOL_NAME(sys_sched_getparam)   /* 155 */
  563         .long SYMBOL_NAME(sys_sched_setscheduler)
  564         .long SYMBOL_NAME(sys_sched_getscheduler)
  565         .long SYMBOL_NAME(sys_sched_yield)
  566         .long SYMBOL_NAME(sys_sched_get_priority_max)
  567         .long SYMBOL_NAME(sys_sched_get_priority_min)  /* 160 */
  568         .long SYMBOL_NAME(sys_sched_rr_get_interval)
  569         .long SYMBOL_NAME(sys_nanosleep)
  570         .long SYMBOL_NAME(sys_mremap)
  571         .long SYMBOL_NAME(sys_setresuid16)
  572         .long SYMBOL_NAME(sys_getresuid16)      /* 165 */
  573         .long SYMBOL_NAME(sys_vm86)
  574         .long SYMBOL_NAME(sys_query_module)
  575         .long SYMBOL_NAME(sys_poll)
  576         .long SYMBOL_NAME(sys_nfsservctl)
  577         .long SYMBOL_NAME(sys_setresgid16)      /* 170 */
  578         .long SYMBOL_NAME(sys_getresgid16)
  579         .long SYMBOL_NAME(sys_prctl)
  580         .long SYMBOL_NAME(sys_rt_sigreturn)
  581         .long SYMBOL_NAME(sys_rt_sigaction)
  582         .long SYMBOL_NAME(sys_rt_sigprocmask)   /* 175 */
  583         .long SYMBOL_NAME(sys_rt_sigpending)
  584         .long SYMBOL_NAME(sys_rt_sigtimedwait)
  585         .long SYMBOL_NAME(sys_rt_sigqueueinfo)
  586         .long SYMBOL_NAME(sys_rt_sigsuspend)
  587         .long SYMBOL_NAME(sys_pread)            /* 180 */
  588         .long SYMBOL_NAME(sys_pwrite)
  589         .long SYMBOL_NAME(sys_chown16)
  590         .long SYMBOL_NAME(sys_getcwd)
  591         .long SYMBOL_NAME(sys_capget)
  592         .long SYMBOL_NAME(sys_capset)           /* 185 */
  593         .long SYMBOL_NAME(sys_sigaltstack)
  594         .long SYMBOL_NAME(sys_sendfile)
  595         .long SYMBOL_NAME(sys_ni_syscall)               /* streams1 */
  596         .long SYMBOL_NAME(sys_ni_syscall)               /* streams2 */
  597         .long SYMBOL_NAME(sys_vfork)            /* 190 */
  598         .long SYMBOL_NAME(sys_getrlimit)
  599         .long SYMBOL_NAME(sys_mmap2)
  600         .long SYMBOL_NAME(sys_truncate64)
  601         .long SYMBOL_NAME(sys_ftruncate64)
  602         .long SYMBOL_NAME(sys_stat64)           /* 195 */
  603         .long SYMBOL_NAME(sys_lstat64)
  604         .long SYMBOL_NAME(sys_fstat64)
  605         .long SYMBOL_NAME(sys_lchown)
  606         .long SYMBOL_NAME(sys_getuid)
  607         .long SYMBOL_NAME(sys_getgid)           /* 200 */
  608         .long SYMBOL_NAME(sys_geteuid)
  609         .long SYMBOL_NAME(sys_getegid)
  610         .long SYMBOL_NAME(sys_setreuid)
  611         .long SYMBOL_NAME(sys_setregid)
  612         .long SYMBOL_NAME(sys_getgroups)        /* 205 */
  613         .long SYMBOL_NAME(sys_setgroups)
  614         .long SYMBOL_NAME(sys_fchown)
  615         .long SYMBOL_NAME(sys_setresuid)
  616         .long SYMBOL_NAME(sys_getresuid)
  617         .long SYMBOL_NAME(sys_setresgid)        /* 210 */
  618         .long SYMBOL_NAME(sys_getresgid)
  619         .long SYMBOL_NAME(sys_chown)
  620         .long SYMBOL_NAME(sys_setuid)
  621         .long SYMBOL_NAME(sys_setgid)
  622         .long SYMBOL_NAME(sys_setfsuid)         /* 215 */
  623         .long SYMBOL_NAME(sys_setfsgid)
  624         .long SYMBOL_NAME(sys_pivot_root)
  625         .long SYMBOL_NAME(sys_mincore)
  626         .long SYMBOL_NAME(sys_madvise)
  627         .long SYMBOL_NAME(sys_getdents64)       /* 220 */
  628         .long SYMBOL_NAME(sys_fcntl64)
  629         .long SYMBOL_NAME(sys_ni_syscall)       /* reserved for TUX */
  630         .long SYMBOL_NAME(sys_ni_syscall)       /* Reserved for Security */
  631         .long SYMBOL_NAME(sys_gettid)
  632         .long SYMBOL_NAME(sys_readahead)        /* 225 */
  633         .long SYMBOL_NAME(sys_setxattr)
  634         .long SYMBOL_NAME(sys_lsetxattr)
  635         .long SYMBOL_NAME(sys_fsetxattr)
  636         .long SYMBOL_NAME(sys_getxattr)
  637         .long SYMBOL_NAME(sys_lgetxattr)        /* 230 */
  638         .long SYMBOL_NAME(sys_fgetxattr)
  639         .long SYMBOL_NAME(sys_listxattr)
  640         .long SYMBOL_NAME(sys_llistxattr)
  641         .long SYMBOL_NAME(sys_flistxattr)
  642         .long SYMBOL_NAME(sys_removexattr)      /* 235 */
  643         .long SYMBOL_NAME(sys_lremovexattr)
  644         .long SYMBOL_NAME(sys_fremovexattr)
  645         .long SYMBOL_NAME(sys_tkill)
  646         .long SYMBOL_NAME(sys_sendfile64)
  647         .long SYMBOL_NAME(sys_ni_syscall)       /* 240 reserved for futex */
  648         .long SYMBOL_NAME(sys_ni_syscall)       /* reserved for sched_setaffinity */
  649         .long SYMBOL_NAME(sys_ni_syscall)       /* reserved for sched_getaffinity */
  650         .long SYMBOL_NAME(sys_ni_syscall)       /* sys_set_thread_area */
  651         .long SYMBOL_NAME(sys_ni_syscall)       /* sys_get_thread_area */
  652         .long SYMBOL_NAME(sys_ni_syscall)       /* 245 sys_io_setup */
  653         .long SYMBOL_NAME(sys_ni_syscall)       /* sys_io_destroy */
  654         .long SYMBOL_NAME(sys_ni_syscall)       /* sys_io_getevents */
  655         .long SYMBOL_NAME(sys_ni_syscall)       /* sys_io_submit */
  656         .long SYMBOL_NAME(sys_ni_syscall)       /* sys_io_cancel */
  657         .long SYMBOL_NAME(sys_ni_syscall)       /* 250 sys_alloc_hugepages */
  658         .long SYMBOL_NAME(sys_ni_syscall)       /* sys_free_hugepages */
  659         .long SYMBOL_NAME(sys_ni_syscall)       /* sys_exit_group */
  660         .long SYMBOL_NAME(sys_ni_syscall)       /* sys_lookup_dcookie */
  661         .long SYMBOL_NAME(sys_ni_syscall)       /* sys_epoll_create */
  662         .long SYMBOL_NAME(sys_ni_syscall)       /* sys_epoll_ctl 255 */
  663         .long SYMBOL_NAME(sys_ni_syscall)       /* sys_epoll_wait */
  664         .long SYMBOL_NAME(sys_ni_syscall)       /* sys_remap_file_pages */
  665         .long SYMBOL_NAME(sys_ni_syscall)       /* sys_set_tid_address */
  666 
  667         .rept NR_syscalls-(.-sys_call_table)/4
  668                 .long SYMBOL_NAME(sys_ni_syscall)
  669         .endr

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