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 /*--------------------------------------------------------------------*/
 /*--- mips/Linux-specific kernel interface.     vki-mips64-linux.h ---*/
 /*--------------------------------------------------------------------*/
 
 /*
    This file is part of Valgrind, a dynamic binary instrumentation
    framework.
 
    Copyright (C) 2010-2017 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 2 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/>.
 */
 
 #ifndef __VKI_MIPS64_LINUX_H
 #define __VKI_MIPS64_LINUX_H
 
 #include <config.h>
 
 // mips endian
 #if defined (_MIPSEL)
 #define VKI_LITTLE_ENDIAN  1
 #elif defined (_MIPSEB)
 #define VKI_BIG_ENDIAN  1
 #endif
 
 //----------------------------------------------------------------------
 // From linux-2.6.35.9/include/asm-mips/cachectl.h
 //----------------------------------------------------------------------
 
 #define VKI_ICACHE  (1<<0)          /* flush instruction cache        */
 #define VKI_DCACHE  (1<<1)          /* writeback and flush data cache */
 #define VKI_BCACHE  (VKI_ICACHE | VKI_DCACHE) /* flush both caches    */
 
 //----------------------------------------------------------------------
 // From linux-2.6.35.9/include/mips-mips/types.h
 //----------------------------------------------------------------------
 
 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 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;
 
 #if (_MIPS_SZLONG == 64)
 typedef __signed__ long __vki_s64;
 typedef unsigned   long __vki_u64;
 #else
 typedef __signed__ long long __vki_s64;
 typedef unsigned   long long __vki_u64;
 #endif
 
 //----------------------------------------------------------------------
 // From linux-2.6.35.9/include/asm-mips/page.h
 //----------------------------------------------------------------------
 
 /* MIPS64 uses runtime pagesize detection */
 extern UWord VKI_PAGE_SHIFT;
 extern UWord VKI_PAGE_SIZE;
 #define VKI_PAGE_MASK           (~(VKI_PAGE_SIZE-1))
 #define VKI_MAX_PAGE_SHIFT      16
 #define VKI_MAX_PAGE_SIZE       (1UL << VKI_MAX_PAGE_SHIFT)
 
 //----------------------------------------------------------------------
 // From linux-2.6.35.9/arch/mips/include/bits/shm.h
 //----------------------------------------------------------------------
 
 #define VKI_SHMLBA  0x40000
 
 //----------------------------------------------------------------------
 // From linux-2.6.35.9/include/asm-mips/signal.h
 //----------------------------------------------------------------------
 
 #define VKI_MINSIGSTKSZ 2048
 
 #define VKI_SIG_BLOCK   1  /* for blocking signals */
 #define VKI_SIG_UNBLOCK 2  /* for unblocking signals */
 #define VKI_SIG_SETMASK 3  /* for setting the signal mask */
 
 /* Type of a signal handler.  */
 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;
 
 #define VKI_SIG_DFL     ((__vki_sighandler_t)0)   /* default signal handling */
 #define VKI_SIG_IGN     ((__vki_sighandler_t)1)   /* ignore signal */
 #define VKI_SIG_ERR     ((__vki_sighandler_t)-1)  /* error return from signal */
 
 #define _VKI_NSIG       128
 #define _VKI_NSIG_BPW   (__SIZEOF_LONG__ * 8)
 #define _VKI_NSIG_WORDS (_VKI_NSIG / _VKI_NSIG_BPW)
 
 typedef unsigned long vki_old_sigset_t;  /* at least 32 bits */
 
 typedef struct {
         unsigned long sig[_VKI_NSIG_WORDS];
 } vki_sigset_t;
 
 #define VKI_SIGHUP           1          /* Hangup (POSIX).                    */
 #define VKI_SIGINT           2          /* Interrupt (ANSI).                  */
 #define VKI_SIGQUIT          3          /* Quit (POSIX).                      */
 #define VKI_SIGILL           4          /* Illegal instruction (ANSI).        */
 #define VKI_SIGTRAP          5          /* Trace trap (POSIX).                */
 #define VKI_SIGIOT           6          /* IOT trap (4.2 BSD).                */
 #define VKI_SIGABRT          VKI_SIGIOT /* Abort (ANSI).                      */
 #define VKI_SIGEMT           7
 #define VKI_SIGFPE           8          /* Floating-point exception (ANSI).   */
 #define VKI_SIGKILL          9          /* Kill, unblockable (POSIX).         */
 #define VKI_SIGBUS          10          /* BUS error (4.2 BSD).               */
 #define VKI_SIGSEGV         11          /* Segmentation violation (ANSI).     */
 #define VKI_SIGSYS          12
 #define VKI_SIGPIPE         13          /* Broken pipe (POSIX).               */
 #define VKI_SIGALRM         14          /* Alarm clock (POSIX).               */
 #define VKI_SIGTERM         15          /* Termination (ANSI).                */
 #define VKI_SIGUSR1         16          /* User-defined signal 1 (POSIX).     */
 #define VKI_SIGUSR2         17          /* User-defined signal 2 (POSIX).     */
 #define VKI_SIGCHLD         18          /* Child status has changed (POSIX).  */
 #define VKI_SIGCLD          VKI_SIGCHLD /* Same as SIGCHLD (System V).        */
 #define VKI_SIGPWR          19          /* Power failure restart (System V).  */
 #define VKI_SIGWINCH        20          /* Window size change (4.3 BSD, Sun). */
 #define VKI_SIGURG          21          /* Urgent condition on socket.        */
 #define VKI_SIGIO           22          /* I/O now possible (4.2 BSD).        */
 #define VKI_SIGPOLL         VKI_SIGIO   /* Pollable event occurred (System V).*/
 #define VKI_SIGSTOP         23          /* Stop, unblockable (POSIX).         */
 #define VKI_SIGTSTP         24          /* Keyboard stop (POSIX).             */
 #define VKI_SIGCONT         25          /* Continue (POSIX).                  */
 #define VKI_SIGTTIN         26          /* Background read from tty (POSIX).  */
 #define VKI_SIGTTOU         27          /* Background write to tty (POSIX).   */
 #define VKI_SIGVTALRM       28          /* Virtual alarm clock (4.2 BSD).     */
 #define VKI_SIGPROF         29          /* Profiling alarm clock (4.2 BSD).   */
 #define VKI_SIGXCPU         30          /* CPU limit exceeded (4.2 BSD).      */
 #define VKI_SIGXFSZ         31          /* File size limit exceeded (4.2 BSD).*/
 
 /* These should not be considered constants from userland.  */
 #define VKI_SIGRTMIN    32
 // [[This was (_NSIG-1) in 2.4.X... not sure if it matters.]]
 #define VKI_SIGRTMAX    (_VKI_NSIG - 1)
 
 #define VKI_SA_ONSTACK      0x08000000u
 #define VKI_SA_RESETHAND    0x80000000u
 #define VKI_SA_RESTART      0x10000000u
 #define VKI_SA_SIGINFO      0x00000008u
 #define VKI_SA_NODEFER      0x40000000u
 #define VKI_SA_NOCLDWAIT    0x00010000u
 #define VKI_SA_NOCLDSTOP    0x00000001u
 
 #define VKI_SA_NOMASK           VKI_SA_NODEFER
 #define VKI_SA_ONESHOT          VKI_SA_RESETHAND
 //#define VKI_SA_INTERRUPT      0x20000000  /* dummy -- ignored */
 
 #define VKI_SA_RESTORER         0x04000000
 
 #define VKI_SS_ONSTACK          1
 #define VKI_SS_DISABLE          2
 
 struct vki_old_sigaction {
        // [[Nb: a 'k' prefix is added to "sa_handler" because
        // bits/sigaction.h (which gets dragged in somehow via signal.h)
        // #defines it as something else.  Since that is done for glibc's
        // purposes, which we don't care about here, we use our own name.]]
        unsigned long sa_flags;
        __vki_sighandler_t ksa_handler;
        vki_old_sigset_t sa_mask;
        __vki_sigrestore_t sa_restorer;
 };
 
 struct vki_sigaction {
        unsigned int    sa_flags;
        __vki_sighandler_t  sa_handler;
        vki_sigset_t        sa_mask;
 };
 
 
 struct vki_sigaction_base {
        // [[See comment about extra 'k' above]]
        unsigned int sa_flags;
        __vki_sighandler_t ksa_handler;
        vki_sigset_t sa_mask;           // mask last for extensibility
        __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;
         vki_size_t ss_size;
         int ss_flags;
 } vki_stack_t;
 
 //----------------------------------------------------------------------
 // From linux-2.6.35.9/include/asm-mips/sigcontext.h
 //----------------------------------------------------------------------
 
 struct _vki_fpreg {
        unsigned short significand[4];
        unsigned short exponent;
 };
 
 struct _vki_fpxreg {
        unsigned short significand[4];
        unsigned short exponent;
        unsigned short padding[3];
 };
 
 struct _vki_xmmreg {
        unsigned long element[4];
 };
 
 struct _vki_fpstate {
        /* Regular FPU environment */
        unsigned long    cw;
        unsigned long    sw;
        unsigned long    tag;
        unsigned long    ipoff;
        unsigned long    cssel;
        unsigned long    dataoff;
        unsigned long    datasel;
        struct _vki_fpreg    _st[8];
        unsigned short   status;
        unsigned short   magic;           /* 0xffff = regular FPU data only */
 
        /* FXSR FPU environment */
        unsigned long    _fxsr_env[6];    /* FXSR FPU env is ignored */
        unsigned long    mxcsr;
        unsigned long    reserved;
        struct _vki_fpxreg   _fxsr_st[8]; /* FXSR FPU reg data is ignored */
        struct _vki_xmmreg   _xmm[8];
        unsigned long    padding[56];
 };
 
 //----------------------------------------------------------------------
 // From linux-2.6.35.9/include/asm-mips/sigcontext.h
 //----------------------------------------------------------------------
 struct vki_sigcontext {
        __vki_u64   sc_regs[32];
        __vki_u64   sc_fpregs[32];
        __vki_u64   sc_mdhi;
        __vki_u64   sc_hi1;
        __vki_u64   sc_hi2;
        __vki_u64   sc_hi3;
        __vki_u64   sc_mdlo;
        __vki_u64   sc_lo1;
        __vki_u64   sc_lo2;
        __vki_u64   sc_lo3;
        __vki_u64   sc_pc;
        __vki_u64   sc_fpc_csr;
        __vki_u64   sc_used_math;
        __vki_u64   sc_dsp;
        __vki_u64   sc_reserved;
 };
 
 //----------------------------------------------------------------------
 // From linux-2.6.35.9/include/asm-mips/mman.h
 //----------------------------------------------------------------------
 
 #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  0x01000000  /* mprotect flag: extend change to start
                                            of growsdown vma */
 #define VKI_PROT_GROWSUP    0x02000000  /* mprotect flag: extend change to end
                                            of growsup vma */
 
 #define VKI_MAP_SHARED      0x001     /* Share changes */
 #define VKI_MAP_PRIVATE     0x002     /* Changes are private */
 //#define VKI_MAP_TYPE      0x0f        /* Mask for type of mapping */
 #define VKI_MAP_FIXED       0x010     /* Interpret addr exactly */
 
 #define VKI_MAP_NORESERVE   0x0400   /* don't reserve swap pages */
 
 /* These are linux-specific */
 #define VKI_MAP_NORESERVE   0x0400          /* don't check for reservations */
 #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_POPULATE    0x10000         /* populate (prefault) pagetables */
 #define VKI_MAP_NONBLOCK    0x20000         /* do not block on IO */
 
 //----------------------------------------------------------------------
 // From linux-2.6.35.9/include/asm-mips/fcntl.h
 //----------------------------------------------------------------------
 
 #define VKI_O_RDONLY        00
 #define VKI_O_WRONLY        01
 #define VKI_O_RDWR          02
 #define VKI_O_ACCMODE       03
 
 #define VKI_O_CREAT         0x0100      /* not fcntl */
 #define VKI_O_EXCL          0x0400      /* not fcntl */
 
 #define VKI_O_TRUNC         0x0200      /* not fcntl */
 
 #define VKI_O_APPEND        0x0008
 #define VKI_O_NONBLOCK      0x0080
 #define VKI_O_LARGEFILE     0x2000
 
 #define VKI_AT_FDCWD        -100
 
 #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         14
 #define VKI_F_SETLK         6
 #define VKI_F_SETLKW        7
 
 #define VKI_F_SETOWN        24          /*  for sockets. */
 #define VKI_F_GETOWN        23          /*  for sockets. */
 #define VKI_F_SETSIG        10          /*  for sockets. */
 #define VKI_F_GETSIG        11          /*  for sockets. */
 
 #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_GETLK64       33          /*  using 'struct flock64' */
 #define VKI_F_SETLK64       34
 #define VKI_F_SETLKW64      35
 
 /* for F_[GET|SET]FL */
 #define VKI_FD_CLOEXEC      1      /* actually anything with low bit set goes */
 
 #define VKI_F_LINUX_SPECIFIC_BASE 1024
 
 struct vki_f_owner_ex {
        int type;
        __vki_kernel_pid_t pid;
 };
 
 //----------------------------------------------------------------------
 // From linux-2.6.35.9/include/asm-mips/resource.h
 //----------------------------------------------------------------------
 
 #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   5   /* max number of open files */
 
 //----------------------------------------------------------------------
 // From linux-2.6.35.9/include/asm-mips/socket.h
 //----------------------------------------------------------------------
 
 #define VKI_SOL_SOCKET   0xffff
 
 #define VKI_SO_TYPE      0x1008
 
 #define VKI_SO_ATTACH_FILTER    26
 
 //----------------------------------------------------------------------
 // From linux-2.6.35.9/include/asm-i386/sockios.h
 //----------------------------------------------------------------------
 
 #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      /* Get stamp (timeval) */
 #define VKI_SIOCGSTAMPNS        0x8907      /* Get stamp (timespec) */
 
 //----------------------------------------------------------------------
 // From linux-2.6.35.9/include/asm-mips/stat.h
 //----------------------------------------------------------------------
 
 /* Size of kernel long is different from Valgrind MIPS n32 long size, so we have to
 use long long instead long type. */
 struct vki_stat {
         unsigned int    st_dev;
         unsigned int    st_pad0[3];     /* Reserved for st_dev expansion  */
 
 #if defined(VGABI_N32)
         unsigned long long st_ino;
 #else
         unsigned long   st_ino;
 #endif
 
         int             st_mode;
         unsigned int    st_nlink;
 
         unsigned int    st_uid;
         unsigned int    st_gid;
 
         unsigned int    st_rdev;
         unsigned int    st_pad1[3];     /* Reserved for st_rdev expansion  */
 
 #if defined(VGABI_N32)
         long long       st_size;
 #else
         long            st_size;
 #endif
 
         /*
          * Actually this should be timestruc_t st_atime, st_mtime and st_ctime
          * but we don't have it under Linux.
          */
         unsigned int    st_atime;
         unsigned int    st_atime_nsec;  /* Reserved for st_atime expansion  */
 
         unsigned int    st_mtime;
         unsigned int    st_mtime_nsec;  /* Reserved for st_mtime expansion  */
 
         unsigned int    st_ctime;
         unsigned int    st_ctime_nsec;  /* Reserved for st_ctime expansion  */
 
         unsigned int    st_blksize;
         unsigned int    st_pad2;
 
         long long       st_blocks;
 };
 
 struct vki_stat64 {
         unsigned long   st_dev;
         unsigned long   st_pad0[3];     /* Reserved for st_dev expansion  */
 
         unsigned long long      st_ino;
 
         int             st_mode;
         unsigned int    st_nlink;
 
         unsigned int    st_uid;
         unsigned int    st_gid;
 
         unsigned long   st_rdev;
         unsigned long   st_pad1[3];     /* Reserved for st_rdev expansion  */
 
         long long       st_size;
 
         /*
          * Actually this should be timestruc_t st_atime, st_mtime and st_ctime
          * but we don't have it under Linux.
          */
         unsigned long   st_atime;
         unsigned long   st_atime_nsec;  /* Reserved for st_atime expansion  */
 
         unsigned long   st_mtime;
         unsigned long   st_mtime_nsec;  /* Reserved for st_mtime expansion  */
 
         unsigned long   st_ctime;
         unsigned long   st_ctime_nsec;  /* Reserved for st_ctime expansion  */
 
         unsigned long   st_blksize;
         unsigned long   st_pad2;
 
         long long       st_blocks;
 };
 
 //----------------------------------------------------------------------
 // From linux-2.6.35.9/include/asm-mips/statfs.h
 //----------------------------------------------------------------------
 
 struct vki_statfs {
        __vki_u32 f_type;
 #define f_fstyp f_type
        __vki_u32 f_bsize;
        __vki_u32 f_frsize;
        __vki_u32 f_blocks;
        __vki_u32 f_bfree;
        __vki_u32 f_files;
        __vki_u32 f_ffree;
        __vki_u32 f_bavail;
        __vki_kernel_fsid_t f_fsid;
        __vki_u32 f_namelen;
        __vki_u32 f_spare[6];
 };
 
 //----------------------------------------------------------------------
 // From linux-2.6.35.9/include/asm-mips/termios.h
 //----------------------------------------------------------------------
 
 struct vki_winsize {
        unsigned short ws_row;
        unsigned short ws_col;
        unsigned short ws_xpixel;
        unsigned short ws_ypixel;
 };
 
 #define NCC     8
 #define NCCS    23
 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 */
 };
 
 //----------------------------------------------------------------------
 // From linux-2.6.35.9/include/asm-mips/termbits.h
 //----------------------------------------------------------------------
 
 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 */
 };
 
 //----------------------------------------------------------------------
 // From linux-2.6.35.9/include/asm-mips/ioctl.h
 //----------------------------------------------------------------------
 
 #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(dir,type,nr,size) \
                 (((dir)  << _VKI_IOC_DIRSHIFT) | \
                 ((type) << _VKI_IOC_TYPESHIFT) | \
                 ((nr)   << _VKI_IOC_NRSHIFT) | \
                 ((size) << _VKI_IOC_SIZESHIFT))
 
 /* provoke compile error for invalid uses of size argument */
 extern unsigned int __VKI_invalid_size_argument_for_IOC;
 /* used to create numbers */
 #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)))
 
 /* used to decode ioctl numbers.. */
 #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)
 
 //----------------------------------------------------------------------
 // From linux-2.6.35.9/include/asm-mips/ioctls.h
 //----------------------------------------------------------------------
 
 #define VKI_TCGETA              0x5401
 #define VKI_TCSETA              0x5402 /* Clashes with SNDCTL_TMR_START
                                           sound ioctl */
 #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_TIOCEXCL            0x740d  /* set exclusive use of tty */
 #define VKI_TIOCNXCL            0x740e  /* reset exclusive use of tty */
 #define VKI_TIOCOUTQ            0x7472  /* output queue size */
 #define VKI_TIOCSTI             0x5472  /* simulate terminal input */
 #define VKI_TIOCMGET            0x741d  /* get all modem bits */
 #define VKI_TIOCMBIS            0x741b  /* bis modem bits */
 #define VKI_TIOCMBIC            0x741c  /* bic modem bits */
 #define VKI_TIOCMSET            0x741a  /* set all modem bits */
 #define VKI_TIOCPKT             0x5470  /* pty: set/clear packet mode */
 #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 */
 
 /* set window size */
 #define VKI_TIOCSWINSZ          _VKI_IOW('t', 103, struct vki_winsize)
 /* get window size */
 #define VKI_TIOCGWINSZ          _VKI_IOR('t', 104, struct vki_winsize)
 #define VKI_TIOCNOTTY           0x5471 /* void tty association */
 #define VKI_TIOCSETD            0x7401
 #define VKI_TIOCGETD            0x7400
 
 #define VKI_FIOCLEX             0x6601
 #define VKI_FIONCLEX            0x6602
 #define VKI_FIOASYNC            0x667d
 #define VKI_FIONBIO             0x667e
 #define VKI_FIOQSIZE            0x667f
 
 #define VKI_TIOCGLTC            0x7474 /* get special local chars */
 #define VKI_TIOCSLTC            0x7475 /* set special local chars */
 #define VKI_TIOCSPGRP           _VKI_IOW('t', 118, int) /* set pgrp of tty */
 #define VKI_TIOCGPGRP           _VKI_IOR('t', 119, int) /* get pgrp of tty */
 #define VKI_TIOCCONS            _VKI_IOW('t', 120, int) /* become virtual
                                                            console */
 
 #define VKI_FIONREAD            0x467f
 #define VKI_TIOCINQ             FIONREAD
 
 #define VKI_TIOCGETP            0x7408
 #define VKI_TIOCSETP            0x7409
 #define VKI_TIOCSETN            0x740a /* TIOCSETP wo flush */
 
 #define VKI_TIOCSBRK            0x5427 /* BSD compatibility */
 #define VKI_TIOCCBRK            0x5428 /* BSD compatibility */
 #define VKI_TIOCGSID            0x7416 /* Return the session ID of FD */
 #define VKI_TIOCGPTN            _VKI_IOR('T',0x30, unsigned int) /* Get Pty
                                                    Number (of pty-mux device) */
 #define VKI_TIOCSPTLCK          _VKI_IOW('T',0x31, int) /* Lock/unlock Pty */
 
 /* I hope the range from 0x5480 on is free ... */
 #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 */
 
 //----------------------------------------------------------------------
 // From asm-generic/poll.h
 //----------------------------------------------------------------------
 
 /* These are specified by iBCS2 */
 #define VKI_POLLIN              0x0001
 
 struct vki_pollfd {
        int fd;
        short events;
        short revents;
 };
 //----------------------------------------------------------------------
 // From linux-2.6.35.9/include/asm-mips/elf.h
 //----------------------------------------------------------------------
 
 #define VKI_ELF_NGREG           45  /* includes nip, msr, lr, etc. */
 #define VKI_ELF_NFPREG          33  /* includes fpscr */
 
 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;
 
 #define VKI_AT_SYSINFO          32
 //----------------------------------------------------------------------
 // From linux-2.6.35.9/include/asm-mips/ucontext.h
 //----------------------------------------------------------------------
 
 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;
 //----------------------------------------------------------------------
 // From linux-2.6.35.9/include/asm-mips/ipcbuf.h
 //----------------------------------------------------------------------
 
 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;
 };
 
 //----------------------------------------------------------------------
 // From linux-2.6.35.9/include/asm-mips/sembuf.h
 //----------------------------------------------------------------------
 
 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;
 };
 
 //----------------------------------------------------------------------
 // From linux-2.6.35.9/include/asm-mips/msgbuf.h
 //----------------------------------------------------------------------
 
 struct vki_msqid64_ds {
        struct vki_ipc64_perm msg_perm;
        __vki_kernel_time_t msg_stime;     /* last msgsnd time */
        __vki_kernel_time_t msg_rtime;     /* last msgrcv time */
        __vki_kernel_time_t msg_ctime;     /* last change time */
        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;
 };
 
 //----------------------------------------------------------------------
 // From linux-2.6.35.9/include/asm-mips/ipc.h
 //----------------------------------------------------------------------
 
 struct vki_ipc_kludge {
        struct vki_msgbuf __user *msgp;
        long msgtyp;
 };
 
 #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
 
 //----------------------------------------------------------------------
 // From linux-2.6.35.9/include/asm-mips/shmbuf.h
 //----------------------------------------------------------------------
 
 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;
 };
 
 //----------------------------------------------------------------------
 // From linux-2.6.35.9/include/asm-mips/ptrace.h
 //----------------------------------------------------------------------
 
 struct vki_pt_regs {
 #ifdef CONFIG_32BIT
         /* Pad bytes for argument save space on the stack. */
        unsigned long pad0[6];
 #endif
 
        /* Saved main processor registers. */
        unsigned long regs[32];
 
        /* Saved special registers. */
        unsigned long cp0_status;
        unsigned long hi;
        unsigned long lo;
 #ifdef CONFIG_CPU_HAS_SMARTMIPS
        unsigned long acx;
 #endif
        unsigned long cp0_badvaddr;
        unsigned long cp0_cause;
        unsigned long cp0_epc;
 #ifdef CONFIG_MIPS_MT_SMTC
        unsigned long cp0_tcstatus;
 #endif /* CONFIG_MIPS_MT_SMTC */
 #ifdef CONFIG_CPU_CAVIUM_OCTEON
        unsigned long long mpl[3];        /* MTM{0,1,2} */
        unsigned long long mtp[3];        /* MTP{0,1,2} */
 #endif
 } __attribute__ ((aligned (8)));
 
 //----------------------------------------------------------------------
 // From linux-4.5/arch/mips/include/uapi/asm/reg.h
 //----------------------------------------------------------------------
 
 #define VKI_MIPS64_EF_R0             0
 #define VKI_MIPS64_EF_R1             1
 #define VKI_MIPS64_EF_R2             2
 #define VKI_MIPS64_EF_R3             3
 #define VKI_MIPS64_EF_R4             4
 #define VKI_MIPS64_EF_R5             5
 #define VKI_MIPS64_EF_R6             6
 #define VKI_MIPS64_EF_R7             7
 #define VKI_MIPS64_EF_R8             8
 #define VKI_MIPS64_EF_R9             9
 #define VKI_MIPS64_EF_R10           10
 #define VKI_MIPS64_EF_R11           11
 #define VKI_MIPS64_EF_R12           12
 #define VKI_MIPS64_EF_R13           13
 #define VKI_MIPS64_EF_R14           14
 #define VKI_MIPS64_EF_R15           15
 #define VKI_MIPS64_EF_R16           16
 #define VKI_MIPS64_EF_R17           17
 #define VKI_MIPS64_EF_R18           18
 #define VKI_MIPS64_EF_R19           19
 #define VKI_MIPS64_EF_R20           20
 #define VKI_MIPS64_EF_R21           21
 #define VKI_MIPS64_EF_R22           22
 #define VKI_MIPS64_EF_R23           23
 #define VKI_MIPS64_EF_R24           24
 #define VKI_MIPS64_EF_R25           25
 #define VKI_MIPS64_EF_R26           26
 #define VKI_MIPS64_EF_R27           27
 #define VKI_MIPS64_EF_R28           28
 #define VKI_MIPS64_EF_R29           29
 #define VKI_MIPS64_EF_R30           30
 #define VKI_MIPS64_EF_R31           31
 #define VKI_MIPS64_EF_LO            32
 #define VKI_MIPS64_EF_HI            33
 #define VKI_MIPS64_EF_CP0_EPC       34
 #define VKI_MIPS64_EF_CP0_BADVADDR  35
 #define VKI_MIPS64_EF_CP0_STATUS    36
 #define VKI_MIPS64_EF_CP0_CAUSE     37
 
 //----------------------------------------------------------------------
 // From linux-2.6.35.9/include/asm-i386/ptrace.h
 //----------------------------------------------------------------------
 
 #define VKI_PTRACE_GETREGS            12
 #define VKI_PTRACE_SETREGS            13
 #define VKI_PTRACE_GETFPREGS          14
 #define VKI_PTRACE_SETFPREGS          15
 #define VKI_PTRACE_GETFPXREGS         18
 #define VKI_PTRACE_SETFPXREGS         19
 
 /* Calls to trace a 64bit program from a 32bit program.  */
 #define VKI_PTRACE_PEEKTEXT_3264    0xc0
 #define VKI_PTRACE_PEEKDATA_3264    0xc1
 #define VKI_PTRACE_POKETEXT_3264    0xc2
 #define VKI_PTRACE_POKEDATA_3264    0xc3
 #define VKI_PTRACE_GET_THREAD_AREA_3264     0xc4s
 
 //----------------------------------------------------------------------
 // From linux-2.6.35.9/include/asm-generic/siginfo.h
 //----------------------------------------------------------------------
 
 #define HAVE_ARCH_SIGINFO_T
 typedef union vki_sigval {
         int sival_int;
         void __user *sival_ptr;
 } vki_sigval_t;
 
 #ifndef __VKI_ARCH_SI_PREAMBLE_SIZE
 #if defined(VGABI_64)
  #define __VKI_ARCH_SI_PREAMBLE_SIZE (4 * sizeof(int))
 #elif defined(VGABI_N32)
 #define __VKI_ARCH_SI_PREAMBLE_SIZE (3 * sizeof(int))
 #else
 #error unknown mips64 abi
 #endif
 #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
 
 typedef struct vki_siginfo {
         int si_signo;
         int si_code;
         int si_errno;
         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;
 
 //----------------------------------------------------------------------
 // From linux-2.6.35.5/include/asm/break.h
 //----------------------------------------------------------------------
 #define VKI_BRK_OVERFLOW 6  /* Overflow check */
 #define VKI_BRK_DIVZERO  7  /* Divide by zero check */
 
 //----------------------------------------------------------------------
 // From linux-3.6.35.5/arch/mips/include/socket.h
 //----------------------------------------------------------------------
 enum vki_sock_type {
         VKI_SOCK_STREAM = 2,
         // [[others omitted]]
 };
 #define ARCH_HAS_SOCKET_TYPES 1
 
 //----------------------------------------------------------------------
 // From linux-3.13.0/include/asm/errno.h
 //----------------------------------------------------------------------
 
 #define VKI_ENOSYS       89  /* Function not implemented */
 #define VKI_EOVERFLOW    79  /* Value too large for defined data type */
 
 //----------------------------------------------------------------------
 // From linux-3.7.0/arch/mips/include/uapi/asm/errno.h
 //----------------------------------------------------------------------
 
 #define VKI_EOPNOTSUPP   122 /* Operation not supported on transport
                                 endpoint */
 
 #endif // __VKI_MIPS64_LINUX_H
 
 /*--------------------------------------------------------------------*/
 /*--- end                                       vki-mips64-linux.h ---*/
 /*--------------------------------------------------------------------*/

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