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 /*--------------------------------------------------------------------*/
 /*-- nanoMIPS/Linux-specific kernel interface  vki-nanomips-linux.h --*/
 /*--------------------------------------------------------------------*/
 
 /*
    This file is part of Valgrind, a dynamic binary instrumentation
    framework.
 
    Copyright (C) 2018 RT-RK
 
    This program is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public License as
    published by the Free Software Foundation; either version 3 of the
    License, or (at your option) any later version.
 
    This program is distributed in the hope that it will be useful, but
    WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with this program; if not, see <http://www.gnu.org/licenses/>.
 
    The GNU General Public License is contained in the file COPYING.
 */
 
 #ifndef __VKI_NANOMIPS_LINUX_H
 #define __VKI_NANOMIPS_LINUX_H
 
 #include <config.h>
 
 #if defined (_MIPSEL)
 #define VKI_LITTLE_ENDIAN    1
 #elif defined (_MIPSEB)
 #define VKI_BIG_ENDIAN       1
 #endif
 
 #define VKI_PAGE_MASK        (~(VKI_PAGE_SIZE - 1))
 #define VKI_MAX_PAGE_SHIFT   16
 #define VKI_MAX_PAGE_SIZE    (1UL << VKI_MAX_PAGE_SHIFT)
 
 #define VKI_SIGHUP           1
 #define VKI_SIGINT           2
 #define VKI_SIGQUIT          3
 #define VKI_SIGILL           4
 #define VKI_SIGTRAP          5
 #define VKI_SIGABRT          6
 #define VKI_SIGIOT           6
 #define VKI_SIGBUS           7
 #define VKI_SIGFPE           8
 #define VKI_SIGKILL          9
 #define VKI_SIGUSR1          10
 #define VKI_SIGSEGV          11
 #define VKI_SIGUSR2          12
 #define VKI_SIGPIPE          13
 #define VKI_SIGALRM          14
 #define VKI_SIGTERM          15
 #define VKI_SIGSTKFLT        16
 #define VKI_SIGCHLD          17
 #define VKI_SIGCONT          18
 #define VKI_SIGSTOP          19
 #define VKI_SIGTSTP          20
 #define VKI_SIGTTIN          21
 #define VKI_SIGTTOU          22
 #define VKI_SIGURG           23
 #define VKI_SIGXCPU          24
 #define VKI_SIGXFSZ          25
 #define VKI_SIGVTALRM        26
 #define VKI_SIGPROF          27
 #define VKI_SIGWINCH         28
 #define VKI_SIGIO            29
 #define VKI_SIGPWR           30
 #define VKI_SIGSYS           31
 #define VKI_SIGRTMIN         32
 
 #define VKI_SIG_BLOCK        0    /* for blocking signals */
 #define VKI_SIG_UNBLOCK      1    /* for unblocking signals */
 #define VKI_SIG_SETMASK      2    /* for setting the signal mask */
 
 /* default signal handling */
 #define VKI_SIG_DFL  ((__vki_sighandler_t)0)
 /* ignore signal */
 #define VKI_SIG_IGN  ((__vki_sighandler_t)1)
 
 #define VKI_SIGRTMAX         _VKI_NSIG
 #define VKI_MINSIGSTKSZ      2048
 #define _VKI_NSIG            64
 #define _VKI_NSIG_BPW        32
 #define _VKI_NSIG_WORDS (_VKI_NSIG / _VKI_NSIG_BPW)
 
 #define VKI_SA_NOCLDSTOP     0x00000001
 #define VKI_SA_NOCLDWAIT     0x00000002
 #define VKI_SA_SIGINFO       0x00000004
 #define VKI_SA_ONSTACK       0x08000000
 #define VKI_SA_RESTART       0x10000000
 #define VKI_SA_NODEFER       0x40000000
 #define VKI_SA_RESETHAND     0x80000000
 #define VKI_SA_RESTORER      0x04000000
 #define VKI_SA_NOMASK        VKI_SA_NODEFER
 #define VKI_SA_ONESHOT       VKI_SA_RESETHAND
 
 #define VKI_SS_ONSTACK       1
 #define VKI_SS_DISABLE       2
 
 #define VKI_PROT_NONE        0x0       /* No page permissions */
 #define VKI_PROT_READ        0x1       /* page can be read */
 #define VKI_PROT_WRITE       0x2       /* page can be written */
 #define VKI_PROT_EXEC        0x4       /* page can be executed */
 #define VKI_PROT_GROWSDOWN   0x1000000 /* mprotect flag: extend change to start
                                                          of growsdown vma */
 #define VKI_PROT_GROWSUP     0x2000000 /* mprotect flag: extend change to end
                                                          of growsup vma */
 #define VKI_MAP_SHARED       0x01      /* Share changes */
 #define VKI_MAP_PRIVATE      0x02      /* Changes are private */
 #define VKI_MAP_TYPE         0x0f      /* Mask for type of mapping */
 #define VKI_MAP_FIXED        0x10      /* Interpret addr exactly */
 #define VKI_MAP_ANONYMOUS    0x0800    /* don't use a file */
 #define VKI_MAP_GROWSDOWN    0x1000    /* stack-like segment */
 #define VKI_MAP_DENYWRITE    0x2000    /* ETXTBSY */
 #define VKI_MAP_EXECUTABLE   0x4000    /* mark it as an executable */
 #define VKI_MAP_LOCKED       0x8000    /* pages are locked */
 #define VKI_MAP_NORESERVE    0x0400    /* don't check for reservations */
 #define VKI_MAP_POPULATE     0x10000   /* populate (prefault) pagetables */
 #define VKI_MAP_NONBLOCK     0x20000   /* do not block on IO */
 
 #define VKI_O_ACCMODE        03
 #define VKI_O_RDONLY         00
 #define VKI_O_WRONLY         01
 #define VKI_O_RDWR           02
 #define VKI_O_APPEND         0x000400
 #define VKI_O_DSYNC          0x001000
 #define VKI_O_NONBLOCK       0x000800
 #define VKI_O_CREAT          0x000040
 #define VKI_O_TRUNC          0x000200
 #define VKI_O_EXCL           0x000080
 #define VKI_O_NOCTTY         0x000100
 #define VKI_FASYNC           0x002000
 #define VKI_O_LARGEFILE      0x008000
 #define __VKI_O_SYNC         0x101000
 #define VKI_O_DIRECT         0x004000
 #define VKI_O_CLOEXEC        0x080000
 
 #define VKI_AT_FDCWD         -100
 #define VKI_AT_EMPTY_PATH    0x1000
 
 #define VKI_F_DUPFD          0   /* dup */
 #define VKI_F_GETFD          1   /* get close_on_exec */
 #define VKI_F_SETFD          2   /* set/clear close_on_exec */
 #define VKI_F_GETFL          3   /* get file->f_flags */
 #define VKI_F_SETFL          4   /* set file->f_flags */
 #define VKI_F_GETLK          5
 #define VKI_F_SETLK          6
 #define VKI_F_SETLKW         7
 #define VKI_F_SETOWN         8   /*  for sockets. */
 #define VKI_F_GETOWN         9   /*  for sockets. */
 #define VKI_F_SETSIG         10  /*  for sockets. */
 #define VKI_F_GETSIG         11  /*  for sockets. */
 #define VKI_F_GETLK64        12
 #define VKI_F_SETLK64        13
 #define VKI_F_SETLKW64       14
 #define VKI_F_SETOWN_EX      15
 #define VKI_F_GETOWN_EX      16
 #define VKI_F_OFD_GETLK      36
 #define VKI_F_OFD_SETLK      37
 #define VKI_F_OFD_SETLKW     38
 #define VKI_F_LINUX_SPECIFIC_BASE 1024
 
 #define VKI_FD_CLOEXEC       1
 
 #define VKI_RLIMIT_DATA      2   /* max data size */
 #define VKI_RLIMIT_STACK     3   /* max stack size */
 #define VKI_RLIMIT_CORE      4   /* max core file size */
 #define VKI_RLIMIT_NOFILE    7   /* max number of open files */
 
 #define VKI_SOL_SOCKET       0xffff
 
 #define VKI_SO_TYPE          0x1008
 
 #define _VKI_IOC_NRBITS      8
 #define _VKI_IOC_TYPEBITS    8
 #define _VKI_IOC_SIZEBITS    13
 #define _VKI_IOC_DIRBITS     3
 
 #define _VKI_IOC_NRMASK      ((1 << _VKI_IOC_NRBITS)-1)
 #define _VKI_IOC_TYPEMASK    ((1 << _VKI_IOC_TYPEBITS)-1)
 #define _VKI_IOC_SIZEMASK    ((1 << _VKI_IOC_SIZEBITS)-1)
 #define _VKI_IOC_DIRMASK     ((1 << _VKI_IOC_DIRBITS)-1)
 
 #define _VKI_IOC_NRSHIFT     0
 #define _VKI_IOC_TYPESHIFT   (_VKI_IOC_NRSHIFT+_VKI_IOC_NRBITS)
 #define _VKI_IOC_SIZESHIFT   (_VKI_IOC_TYPESHIFT+_VKI_IOC_TYPEBITS)
 #define _VKI_IOC_DIRSHIFT    (_VKI_IOC_SIZESHIFT+_VKI_IOC_SIZEBITS)
 
 #define _VKI_IOC_NONE        1U
 #define _VKI_IOC_READ        2U
 #define _VKI_IOC_WRITE       4U
 
 #define _VKI_IOC(a,b,c,d)    (((a)<<29) | ((b)<<8) | (c) | ((d)<<16))
 
 #define _VKI_IO(type,nr)        _VKI_IOC(_VKI_IOC_NONE,(type),(nr),0)
 #define _VKI_IOR(type,nr,size)  _VKI_IOC(_VKI_IOC_READ,(type),(nr), \
                                         (_VKI_IOC_TYPECHECK(size)))
 #define _VKI_IOW(type,nr,size)  _VKI_IOC(_VKI_IOC_WRITE,(type),(nr), \
                                         (_VKI_IOC_TYPECHECK(size)))
 #define _VKI_IOWR(type,nr,size) _VKI_IOC(_VKI_IOC_READ|_VKI_IOC_WRITE,(type), \
                                         (nr),(_VKI_IOC_TYPECHECK(size)))
 
 #define _VKI_IOC_DIR(nr)   (((nr) >> _VKI_IOC_DIRSHIFT) & _VKI_IOC_DIRMASK)
 #define _VKI_IOC_TYPE(nr)  (((nr) >> _VKI_IOC_TYPESHIFT) & _VKI_IOC_TYPEMASK)
 #define _VKI_IOC_NR(nr)    (((nr) >> _VKI_IOC_NRSHIFT) & _VKI_IOC_NRMASK)
 #define _VKI_IOC_SIZE(nr)  (((nr) >> _VKI_IOC_SIZESHIFT) & _VKI_IOC_SIZEMASK)
 
 #define VKI_TCGETA           0x5401
 #define VKI_TCSETA           0x5402
 #define VKI_TCSETAW          0x5403
 #define VKI_TCSETAF          0x5404
 #define VKI_TCSBRK           0x5405
 #define VKI_TCXONC           0x5406
 #define VKI_TCFLSH           0x5407
 #define VKI_TCGETS           0x540D
 #define VKI_TCSETS           0x540E
 #define VKI_TCSETSW          0x540F
 #define VKI_TCSETSF          0x5410
 
 #define VKI_FIONREAD         0x467F
 #define VKI_FIOCLEX          0x6601
 #define VKI_FIONCLEX         0x6602
 #define VKI_FIOASYNC         0x667D
 #define VKI_FIONBIO          0x667E
 #define VKI_FIOQSIZE         0x667F
 
 #define VKI_TIOCSBRK         0x5427 /* BSD compatibility */
 #define VKI_TIOCCBRK         0x5428 /* BSD compatibility */
 #define VKI_TIOCPKT          0x5470 /* pty: set/clear packet mode */
 #define VKI_TIOCNOTTY        0x5471
 #define VKI_TIOCSTI          0x5472 /* simulate terminal input */
 #define VKI_TIOCSCTTY        0x5480 /* become controlling tty */
 #define VKI_TIOCGSOFTCAR     0x5481
 #define VKI_TIOCSSOFTCAR     0x5482
 #define VKI_TIOCLINUX        0x5483
 #define VKI_TIOCGSERIAL      0x5484
 #define VKI_TIOCSSERIAL      0x5485
 #define VKI_TCSBRKP          0x5486 /* Needed for POSIX tcsendbreak() */
 #define VKI_TIOCSERCONFIG    0x5488
 #define VKI_TIOCSERGWILD     0x5489
 #define VKI_TIOCSERSWILD     0x548a
 #define VKI_TIOCGLCKTRMIOS   0x548b
 #define VKI_TIOCSLCKTRMIOS   0x548c
 #define VKI_TIOCSERGSTRUCT   0x548d /* For debugging only */
 #define VKI_TIOCSERGETLSR    0x548e /* Get line status register */
 #define VKI_TIOCSERGETMULTI  0x548f /* Get multiport config  */
 #define VKI_TIOCSERSETMULTI  0x5490 /* Set multiport config */
 #define VKI_TIOCMIWAIT       0x5491 /* wait for a change on serial input line(s) */
 #define VKI_TIOCGICOUNT      0x5492 /* read serial port inline interrupt counts */
 #define VKI_TIOCGHAYESESP    0x5493 /* Get Hayes ESP configuration */
 #define VKI_TIOCSHAYESESP    0x5494 /* Set Hayes ESP configuration */
 #define VKI_TIOCGETD         0x7400
 #define VKI_TIOCSETD         0x7401
 #define VKI_TIOCGETP         0x7408
 #define VKI_TIOCSETP         0x7409
 #define VKI_TIOCSETN         0x740A /* TIOCSETP wo flush */
 #define VKI_TIOCEXCL         0x740D /* set exclusive use of tty */
 #define VKI_TIOCNXCL         0x740E /* reset exclusive use of tty */
 #define VKI_TIOCGSID         0x7416 /* Return the session ID of FD */
 #define VKI_TIOCMSET         0x741A /* set all modem bits */
 #define VKI_TIOCMBIS         0x741B /* bis modem bits */
 #define VKI_TIOCMBIC         0x741C /* bic modem bits */
 #define VKI_TIOCMGET         0x741D /* get all modem bits */
 #define VKI_TIOCOUTQ         0x7472 /* output queue size */
 #define VKI_TIOCGLTC         0x7474
 #define VKI_TIOCSLTC         0x7475
 #define VKI_TIOCINQ          VKI_FIONREAD
 
 #define VKI_TIOCSWINSZ  _VKI_IOW('t', 103, struct vki_winsize)
 #define VKI_TIOCGWINSZ  _VKI_IOR('t', 104, struct vki_winsize)
 #define VKI_TIOCSPGRP   _VKI_IOW('t', 118, int)
 #define VKI_TIOCGPGRP   _VKI_IOR('t', 119, int)
 #define VKI_TIOCCONS    _VKI_IOW('t', 120, int)
 #define VKI_TIOCGPTN    _VKI_IOR('T',0x30, unsigned int)
 #define VKI_TIOCSPTLCK  _VKI_IOW('T',0x31, int)
 
 #define VKI_TIOCPKT_DATA       0x00    /* data packet */
 #define VKI_TIOCPKT_FLUSHREAD  0x01    /* flush packet */
 #define VKI_TIOCPKT_FLUSHWRITE 0x02    /* flush packet */
 #define VKI_TIOCPKT_STOP       0x04    /* stop output */
 #define VKI_TIOCPKT_START      0x08    /* start output */
 #define VKI_TIOCPKT_NOSTOP     0x10    /* no more ^S, ^Q */
 #define VKI_TIOCPKT_DOSTOP     0x20    /* now do ^S ^Q */
 
 #define NCC                  8
 #define NCCS                 23
 
 #define VKI_SO_ATTACH_FILTER 26
 
 #define VKI_SIOCATMARK  _VKI_IOR('s', 7, int)
 #define VKI_SIOCSPGRP   _VKI_IOW('s', 8, vki_pid_t)
 #define VKI_SIOCGPGRP   _VKI_IOR('s', 9, vki_pid_t)
 #define VKI_SIOCGSTAMP       0x8906
 #define VKI_SIOCGSTAMPNS     0x8907
 
 #define VKI_POLLIN           0x0001
 
 #define VKI_SEMOP            1
 #define VKI_SEMGET           2
 #define VKI_SEMCTL           3
 #define VKI_SEMTIMEDOP       4
 #define VKI_MSGSND           11
 #define VKI_MSGRCV           12
 #define VKI_MSGGET           13
 #define VKI_MSGCTL           14
 #define VKI_SHMAT            21
 #define VKI_SHMDT            22
 #define VKI_SHMGET           23
 #define VKI_SHMCTL           24
 #define VKI_SHMLBA           0x40000
 
 #define VKI_EF_NANOMIPS_ABI     0x0000F000
 #define VKI_EF_NANOMIPS_ABI_P32 0x00001000
 
 #define VKI_PTRACE_GETREGS   12
 #define VKI_PTRACE_SETREGS   13
 #define VKI_PTRACE_GETFPREGS 14
 #define VKI_PTRACE_SETFPREGS 15
 
 #define VKI_MIPS32_EF_R0     6
 #define VKI_MIPS32_EF_R1     7
 #define VKI_MIPS32_EF_R2     8
 #define VKI_MIPS32_EF_R3     9
 #define VKI_MIPS32_EF_R4     10
 #define VKI_MIPS32_EF_R5     11
 #define VKI_MIPS32_EF_R6     12
 #define VKI_MIPS32_EF_R7     13
 #define VKI_MIPS32_EF_R8     14
 #define VKI_MIPS32_EF_R9     15
 #define VKI_MIPS32_EF_R10    16
 #define VKI_MIPS32_EF_R11    17
 #define VKI_MIPS32_EF_R12    18
 #define VKI_MIPS32_EF_R13    19
 #define VKI_MIPS32_EF_R14    20
 #define VKI_MIPS32_EF_R15    21
 #define VKI_MIPS32_EF_R16    22
 #define VKI_MIPS32_EF_R17    23
 #define VKI_MIPS32_EF_R18    24
 #define VKI_MIPS32_EF_R19    25
 #define VKI_MIPS32_EF_R20    26
 #define VKI_MIPS32_EF_R21    27
 #define VKI_MIPS32_EF_R22    28
 #define VKI_MIPS32_EF_R23    29
 #define VKI_MIPS32_EF_R24    30
 #define VKI_MIPS32_EF_R25    31
 #define VKI_MIPS32_EF_R26    32
 #define VKI_MIPS32_EF_R27    33
 #define VKI_MIPS32_EF_R28    34
 #define VKI_MIPS32_EF_R29    35
 #define VKI_MIPS32_EF_R30    36
 #define VKI_MIPS32_EF_R31    37
 
 #define VKI_MIPS32_EF_CP0_EPC      40
 #define VKI_MIPS32_EF_CP0_BADVADDR 41
 #define VKI_MIPS32_EF_CP0_STATUS   42
 #define VKI_MIPS32_EF_CP0_CAUSE    43
 #define VKI_MIPS32_EF_UNUSED0      44
 
 #define VKI_ELF_NGREG        45
 #define VKI_ELF_NFPREG       1 /* Not used. Just to satisfy compiler. */
 
 #define VKI_AT_SYSINFO       32
 
 #ifndef __VKI_ARCH_SI_PREAMBLE_SIZE
 #define __VKI_ARCH_SI_PREAMBLE_SIZE (3 * sizeof(int))
 #endif
 
 #define VKI_SI_MAX_SIZE 128
 
 #ifndef VKI_SI_PAD_SIZE
 #define VKI_SI_PAD_SIZE ((VKI_SI_MAX_SIZE - __VKI_ARCH_SI_PREAMBLE_SIZE) \
                          / sizeof(int))
 #endif
 
 #ifndef __VKI_ARCH_SI_UID_T
 #define __VKI_ARCH_SI_UID_T   vki_uid_t
 #endif
 
 #ifndef __VKI_ARCH_SI_BAND_T
 #define __VKI_ARCH_SI_BAND_T long
 #endif
 
 #define VKI_BRK_OVERFLOW     6   /* Overflow check */
 #define VKI_BRK_DIVZERO      7   /* Divide by zero check */
 
 #define VKI_ELIBBAD          84  /* Accessing a corrupted shared library */
 #define VKI_EOPNOTSUPP       122 /* Operation not supported on transport
                                     endpoint */
 #define VKI_ENOSYS           38  /* Function not implemented */
 #define VKI_EOVERFLOW        75  /* Value too large for defined data type */
 
 #define ARCH_HAS_SOCKET_TYPES 1
 #define HAVE_ARCH_SIGINFO_T   1
 
 #define VKI_RLIM_INFINITY 0x7fffffffUL
 
 typedef __signed__ char __vki_s8;
 typedef unsigned   char __vki_u8;
 
 typedef __signed__ short __vki_s16;
 typedef unsigned   short __vki_u16;
 
 typedef __signed__ int __vki_s32;
 typedef unsigned   int __vki_u32;
 
 typedef __signed__ long long __vki_s64;
 typedef unsigned   long long __vki_u64;
 
 typedef __signed char vki_s8;
 typedef unsigned char vki_u8;
 
 typedef __signed short vki_s16;
 typedef unsigned short vki_u16;
 
 typedef __signed int vki_s32;
 typedef unsigned int vki_u32;
 
 typedef void __vki_signalfn_t(int);
 typedef __vki_signalfn_t __user *__vki_sighandler_t;
 
 typedef void __vki_restorefn_t(void);
 typedef __vki_restorefn_t __user *__vki_sigrestore_t;
 
 typedef unsigned long vki_old_sigset_t;
 
 typedef struct {
    unsigned long sig[_VKI_NSIG_WORDS];
 } vki_sigset_t;
 
 struct vki_old_sigaction {
    __vki_sighandler_t ksa_handler;
    unsigned int sa_flags;
    vki_old_sigset_t sa_mask;
    __vki_sigrestore_t sa_restorer;
 };
 
 struct vki_sigaction_base {
    __vki_sighandler_t ksa_handler;
    unsigned int sa_flags;
    vki_sigset_t sa_mask;
    __vki_sigrestore_t sa_restorer;
 };
 
 // On Linux we use the same type for passing sigactions to
 // and from the kernel.  Hence: */
 typedef  struct vki_sigaction_base  vki_sigaction_toK_t;
 typedef  struct vki_sigaction_base  vki_sigaction_fromK_t;
 
 typedef struct vki_sigaltstack {
    void __user *ss_sp;
    int ss_flags;
    vki_size_t ss_size;
 } vki_stack_t;
 
 struct vki_sigcontext {
    __vki_u64 sc_regs[32];
    __vki_u64 sc_pc;
    __vki_u32 sc_used_math;
    __vki_u32 sc_reserved;
 };
 
 struct vki_winsize {
    unsigned short ws_row;
    unsigned short ws_col;
    unsigned short ws_xpixel;
    unsigned short ws_ypixel;
 };
 
 struct vki_termio {
    unsigned short c_iflag;   /* input mode flags */
    unsigned short c_oflag;   /* output mode flags */
    unsigned short c_cflag;   /* control mode flags */
    unsigned short c_lflag;   /* local mode flags */
    char c_line;              /* line discipline */
    unsigned char c_cc[NCCS]; /* control characters */
 };
 
 typedef unsigned char   vki_cc_t;
 typedef unsigned long   vki_speed_t;
 typedef unsigned long   vki_tcflag_t;
 
 struct vki_termios {
    vki_tcflag_t c_iflag;     /* input mode flags */
    vki_tcflag_t c_oflag;     /* output mode flags */
    vki_tcflag_t c_cflag;     /* control mode flags */
    vki_tcflag_t c_lflag;     /* local mode flags */
    vki_cc_t c_line;          /* line discipline */
    vki_cc_t c_cc[NCCS];      /* control characters */
 };
 
 struct vki_f_owner_ex {
    int type;
    __vki_kernel_pid_t pid;
 };
 
 struct vki_pollfd {
    int fd;
    short events;
    short revents;
 };
 
 struct vki_ucontext {
    unsigned long uc_flags;
    struct vki_ucontext *uc_link;
    vki_stack_t uc_stack;
    struct vki_sigcontext uc_mcontext;
    vki_sigset_t uc_sigmask; /* mask last for extensibility */
 };
 
 typedef char vki_modify_ldt_t;
 
 struct vki_ipc64_perm {
    __vki_kernel_key_t  key;
    __vki_kernel_uid_t  uid;
    __vki_kernel_gid_t  gid;
    __vki_kernel_uid_t  cuid;
    __vki_kernel_gid_t  cgid;
    __vki_kernel_mode_t mode;
    unsigned short  seq;
    unsigned short  __pad1;
    unsigned long   __unused1;
    unsigned long   __unused2;
 };
 
 struct vki_semid64_ds {
    struct vki_ipc64_perm sem_perm;             /* permissions .. see ipc.h */
    __vki_kernel_time_t sem_otime;              /* last semop time */
    __vki_kernel_time_t sem_ctime;              /* last change time */
    unsigned long sem_nsems;              /* no. of semaphores in array */
    unsigned long __unused1;
    unsigned long __unused2;
 };
 
 struct vki_msqid64_ds {
    struct vki_ipc64_perm msg_perm;
    __vki_kernel_time_t msg_stime;   /* last msgsnd time */
    unsigned long  __unused1;
    __vki_kernel_time_t msg_rtime;   /* last msgrcv time */
    unsigned long  __unused2;
    __vki_kernel_time_t msg_ctime;   /* last change time */
    unsigned long  __unused3;
    unsigned long  msg_cbytes; /* current number of bytes on queue */
    unsigned long  msg_qnum;   /* number of messages in queue */
    unsigned long  msg_qbytes; /* max number of bytes on queue */
    __vki_kernel_pid_t msg_lspid; /* pid of last msgsnd */
    __vki_kernel_pid_t msg_lrpid; /* last receive pid */
    unsigned long  __unused4;
    unsigned long  __unused5;
 };
 
 struct vki_ipc_kludge {
    struct vki_msgbuf __user *msgp;
    long msgtyp;
 };
 
 struct vki_shmid64_ds {
    struct vki_ipc64_perm       shm_perm;       /* operation perms */
    vki_size_t                  shm_segsz;      /* size of segment (bytes) */
    __vki_kernel_time_t         shm_atime;      /* last attach time */
    __vki_kernel_time_t         shm_dtime;      /* last detach time */
    __vki_kernel_time_t         shm_ctime;      /* last change time */
    __vki_kernel_pid_t          shm_cpid;       /* pid of creator */
    __vki_kernel_pid_t          shm_lpid;       /* pid of last operator */
    unsigned long           shm_nattch;     /* no. of current attaches */
    unsigned long           __unused1;
    unsigned long           __unused2;
 };
 
 struct vki_shminfo64 {
    unsigned long   shmmax;
    unsigned long   shmmin;
    unsigned long   shmmni;
    unsigned long   shmseg;
    unsigned long   shmall;
    unsigned long   __unused1;
    unsigned long   __unused2;
    unsigned long   __unused3;
    unsigned long   __unused4;
 };
 
 typedef unsigned long vki_elf_greg_t;
 
 typedef vki_elf_greg_t vki_elf_gregset_t[VKI_ELF_NGREG];
 
 typedef double vki_elf_fpreg_t;
 
 typedef vki_elf_fpreg_t vki_elf_fpregset_t[VKI_ELF_NFPREG];
 
 typedef struct vki_user_fxsr_struct vki_elf_fpxregset_t;
 
 typedef union vki_sigval {
    int sival_int;
    void __user *sival_ptr;
 } vki_sigval_t;
 
 typedef struct vki_siginfo {
    int si_signo;
    int si_errno;
    int si_code;
    int __pad0[VKI_SI_MAX_SIZE / sizeof(int) - VKI_SI_PAD_SIZE - 3];
 
    union {
       int _pad[VKI_SI_PAD_SIZE];
 
       /* kill() */
       struct {
          vki_pid_t _pid;             /* sender's pid */
          __VKI_ARCH_SI_UID_T _uid;   /* sender's uid */
       } _kill;
 
       /* POSIX.1b timers */
       struct {
          vki_timer_t _tid;           /* timer id */
          int _overrun;           /* overrun count */
          char _pad[sizeof( __VKI_ARCH_SI_UID_T) - sizeof(int)];
          vki_sigval_t _sigval;       /* same as below */
          int _sys_private;       /* not to be passed to user */
       } _timer;
 
       /* POSIX.1b signals */
       struct {
          vki_pid_t _pid;             /* sender's pid */
          __VKI_ARCH_SI_UID_T _uid;   /* sender's uid */
          vki_sigval_t _sigval;
       } _rt;
 
       /* SIGCHLD */
       struct {
          vki_pid_t _pid;             /* which child */
          __VKI_ARCH_SI_UID_T _uid;   /* sender's uid */
          int _status;            /* exit code */
          vki_clock_t _utime;
          vki_clock_t _stime;
       } _sigchld;
 
       /* IRIX SIGCHLD */
       struct {
          vki_pid_t _pid;             /* which child */
          vki_clock_t _utime;
          int _status;            /* exit code */
          vki_clock_t _stime;
       } _irix_sigchld;
 
       /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
       struct {
          void __user *_addr; /* faulting insn/memory ref. */
 #ifdef __ARCH_SI_TRAPNO
          int _trapno;    /* TRAP # which caused the signal */
 #endif
       } _sigfault;
 
       /* SIGPOLL, SIGXFSZ (To do ...)  */
       struct {
          __VKI_ARCH_SI_BAND_T _band; /* POLL_IN, POLL_OUT, POLL_MSG */
          int _fd;
       } _sigpoll;
    } _sifields;
 } vki_siginfo_t;
 
 enum vki_sock_type {
    VKI_SOCK_STREAM = 2,
 };
 
 /* nanoMIPS uses runtime pagesize detection */
 extern UWord VKI_PAGE_SHIFT;
 extern UWord VKI_PAGE_SIZE;
 
 #endif
 
 /*--------------------------------------------------------------------*/
 /*--- end                                     vki-nanomips-linux.h ---*/
 /*--------------------------------------------------------------------*/

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