The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/i386/linux/linux.h

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    1 /*-
    2  * Copyright (c) 1994-1996 Søren Schmidt
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer
   10  *    in this position and unchanged.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  * 3. The name of the author may not be used to endorse or promote products
   15  *    derived from this software without specific prior written permission
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   27  *
   28  * $FreeBSD: stable/9/sys/i386/linux/linux.h 272029 2014-09-23 16:03:57Z bz $
   29  */
   30 
   31 #ifndef _I386_LINUX_H_
   32 #define _I386_LINUX_H_
   33 
   34 #include <sys/signal.h> /* for sigval union */
   35 
   36 #include <i386/linux/linux_syscall.h>
   37 
   38 /*
   39  * debugging support
   40  */
   41 extern u_char linux_debug_map[];
   42 #define ldebug(name)    isclr(linux_debug_map, LINUX_SYS_linux_ ## name)
   43 #define ARGS(nm, fmt)   "linux(%ld): "#nm"("fmt")\n", (long)td->td_proc->p_pid
   44 #define LMSG(fmt)       "linux(%ld): "fmt"\n", (long)td->td_proc->p_pid
   45 #define LINUX_DTRACE    linuxulator
   46 
   47 #ifdef MALLOC_DECLARE
   48 MALLOC_DECLARE(M_LINUX);
   49 #endif
   50 
   51 #define LINUX_SHAREDPAGE        (VM_MAXUSER_ADDRESS - PAGE_SIZE)
   52 #define LINUX_USRSTACK          LINUX_SHAREDPAGE
   53 
   54 #define PTRIN(v)        (void *)(v)
   55 #define PTROUT(v)       (l_uintptr_t)(v)
   56 
   57 #define CP(src,dst,fld) do { (dst).fld = (src).fld; } while (0)
   58 #define CP2(src,dst,sfld,dfld) do { (dst).dfld = (src).sfld; } while (0)
   59 #define PTRIN_CP(src,dst,fld) \
   60         do { (dst).fld = PTRIN((src).fld); } while (0)
   61 
   62 /*
   63  * Provide a separate set of types for the Linux types.
   64  */
   65 typedef int             l_int;
   66 typedef int32_t         l_long;
   67 typedef int64_t         l_longlong;
   68 typedef short           l_short;
   69 typedef unsigned int    l_uint;
   70 typedef uint32_t        l_ulong;
   71 typedef uint64_t        l_ulonglong;
   72 typedef unsigned short  l_ushort;
   73 
   74 typedef char            *l_caddr_t;
   75 typedef l_ulong         l_uintptr_t;
   76 typedef l_long          l_clock_t;
   77 typedef l_int           l_daddr_t;
   78 typedef l_ushort        l_dev_t;
   79 typedef l_uint          l_gid_t;
   80 typedef l_ushort        l_gid16_t;
   81 typedef l_ulong         l_ino_t;
   82 typedef l_int           l_key_t;
   83 typedef l_longlong      l_loff_t;
   84 typedef l_ushort        l_mode_t;
   85 typedef l_long          l_off_t;
   86 typedef l_int           l_pid_t;
   87 typedef l_uint          l_size_t;
   88 typedef l_long          l_suseconds_t;
   89 typedef l_long          l_time_t;
   90 typedef l_uint          l_uid_t;
   91 typedef l_ushort        l_uid16_t;
   92 typedef l_int           l_timer_t;
   93 typedef l_int           l_mqd_t;
   94 
   95 typedef struct {
   96         l_int           val[2];
   97 } l_fsid_t;
   98 
   99 typedef struct {
  100         l_time_t        tv_sec;
  101         l_suseconds_t   tv_usec;
  102 } l_timeval;
  103 
  104 #define l_fd_set        fd_set
  105 
  106 /*
  107  * Miscellaneous
  108  */
  109 #define LINUX_NAME_MAX          255
  110 #define LINUX_MAX_UTSNAME       65
  111 
  112 #define LINUX_CTL_MAXNAME       10
  113 
  114 #define LINUX_AT_COUNT          16      /* Count of used aux entry types.
  115                                          * Keep this synchronized with
  116                                          * elf_linux_fixup() code.
  117                                          */
  118 struct l___sysctl_args
  119 {
  120         l_int           *name;
  121         l_int           nlen;
  122         void            *oldval;
  123         l_size_t        *oldlenp;
  124         void            *newval;
  125         l_size_t        newlen;
  126         l_ulong         __spare[4];
  127 };
  128 
  129 /* Scheduling policies */
  130 #define LINUX_SCHED_OTHER       0
  131 #define LINUX_SCHED_FIFO        1
  132 #define LINUX_SCHED_RR          2
  133 
  134 /* Resource limits */
  135 #define LINUX_RLIMIT_CPU        0
  136 #define LINUX_RLIMIT_FSIZE      1
  137 #define LINUX_RLIMIT_DATA       2
  138 #define LINUX_RLIMIT_STACK      3
  139 #define LINUX_RLIMIT_CORE       4
  140 #define LINUX_RLIMIT_RSS        5
  141 #define LINUX_RLIMIT_NPROC      6
  142 #define LINUX_RLIMIT_NOFILE     7
  143 #define LINUX_RLIMIT_MEMLOCK    8
  144 #define LINUX_RLIMIT_AS         9       /* Address space limit */
  145 
  146 #define LINUX_RLIM_NLIMITS      10
  147 
  148 struct l_rlimit {
  149         l_ulong rlim_cur;
  150         l_ulong rlim_max;
  151 };
  152 
  153 /* mmap options */
  154 #define LINUX_MAP_SHARED        0x0001
  155 #define LINUX_MAP_PRIVATE       0x0002
  156 #define LINUX_MAP_FIXED         0x0010
  157 #define LINUX_MAP_ANON          0x0020
  158 #define LINUX_MAP_GROWSDOWN     0x0100
  159 
  160 struct l_mmap_argv {
  161         l_uintptr_t     addr;
  162         l_size_t        len;
  163         l_int           prot;
  164         l_int           flags;
  165         l_int           fd;
  166         l_off_t         pgoff;
  167 } __packed;
  168 
  169 /*
  170  * stat family of syscalls
  171  */
  172 struct l_timespec {
  173         l_time_t        tv_sec;
  174         l_long          tv_nsec;
  175 };
  176 
  177 struct l_newstat {
  178         l_ushort        st_dev;
  179         l_ushort        __pad1;
  180         l_ulong         st_ino;
  181         l_ushort        st_mode;
  182         l_ushort        st_nlink;
  183         l_ushort        st_uid;
  184         l_ushort        st_gid;
  185         l_ushort        st_rdev;
  186         l_ushort        __pad2;
  187         l_ulong         st_size;
  188         l_ulong         st_blksize;
  189         l_ulong         st_blocks;
  190         struct l_timespec       st_atim;
  191         struct l_timespec       st_mtim;
  192         struct l_timespec       st_ctim;
  193         l_ulong         __unused4;
  194         l_ulong         __unused5;
  195 };
  196 
  197 struct l_stat {
  198         l_ushort        st_dev;
  199         l_ulong         st_ino;
  200         l_ushort        st_mode;
  201         l_ushort        st_nlink;
  202         l_ushort        st_uid;
  203         l_ushort        st_gid;
  204         l_ushort        st_rdev;
  205         l_long          st_size;
  206         struct l_timespec       st_atim;
  207         struct l_timespec       st_mtim;
  208         struct l_timespec       st_ctim;
  209         l_long          st_blksize;
  210         l_long          st_blocks;
  211         l_ulong         st_flags;
  212         l_ulong         st_gen;
  213 };
  214 
  215 struct l_stat64 {
  216         l_ushort        st_dev;
  217         u_char          __pad0[10];
  218         l_ulong         __st_ino;
  219         l_uint          st_mode;
  220         l_uint          st_nlink;
  221         l_ulong         st_uid;
  222         l_ulong         st_gid;
  223         l_ushort        st_rdev;
  224         u_char          __pad3[10];
  225         l_longlong      st_size;
  226         l_ulong         st_blksize;
  227         l_ulong         st_blocks;
  228         l_ulong         __pad4;
  229         struct l_timespec       st_atim;
  230         struct l_timespec       st_mtim;
  231         struct l_timespec       st_ctim;
  232         l_ulonglong     st_ino;
  233 };
  234 
  235 struct l_statfs64 { 
  236         l_int           f_type; 
  237         l_int           f_bsize; 
  238         uint64_t        f_blocks; 
  239         uint64_t        f_bfree; 
  240         uint64_t        f_bavail; 
  241         uint64_t        f_files; 
  242         uint64_t        f_ffree; 
  243         l_fsid_t        f_fsid;
  244         l_int           f_namelen;
  245         l_int           f_spare[6];
  246 };
  247 
  248 struct l_new_utsname {
  249         char    sysname[LINUX_MAX_UTSNAME];
  250         char    nodename[LINUX_MAX_UTSNAME];
  251         char    release[LINUX_MAX_UTSNAME];
  252         char    version[LINUX_MAX_UTSNAME];
  253         char    machine[LINUX_MAX_UTSNAME];
  254         char    domainname[LINUX_MAX_UTSNAME];
  255 };
  256 
  257 /*
  258  * Signalling
  259  */
  260 #define LINUX_SIGHUP            1
  261 #define LINUX_SIGINT            2
  262 #define LINUX_SIGQUIT           3
  263 #define LINUX_SIGILL            4
  264 #define LINUX_SIGTRAP           5
  265 #define LINUX_SIGABRT           6
  266 #define LINUX_SIGIOT            LINUX_SIGABRT
  267 #define LINUX_SIGBUS            7
  268 #define LINUX_SIGFPE            8
  269 #define LINUX_SIGKILL           9
  270 #define LINUX_SIGUSR1           10
  271 #define LINUX_SIGSEGV           11
  272 #define LINUX_SIGUSR2           12
  273 #define LINUX_SIGPIPE           13
  274 #define LINUX_SIGALRM           14
  275 #define LINUX_SIGTERM           15
  276 #define LINUX_SIGSTKFLT         16
  277 #define LINUX_SIGCHLD           17
  278 #define LINUX_SIGCONT           18
  279 #define LINUX_SIGSTOP           19
  280 #define LINUX_SIGTSTP           20
  281 #define LINUX_SIGTTIN           21
  282 #define LINUX_SIGTTOU           22
  283 #define LINUX_SIGURG            23
  284 #define LINUX_SIGXCPU           24
  285 #define LINUX_SIGXFSZ           25
  286 #define LINUX_SIGVTALRM         26
  287 #define LINUX_SIGPROF           27
  288 #define LINUX_SIGWINCH          28
  289 #define LINUX_SIGIO             29
  290 #define LINUX_SIGPOLL           LINUX_SIGIO
  291 #define LINUX_SIGPWR            30
  292 #define LINUX_SIGSYS            31
  293 #define LINUX_SIGRTMIN          32
  294 
  295 #define LINUX_SIGTBLSZ          31
  296 #define LINUX_NSIG_WORDS        2
  297 #define LINUX_NBPW              32
  298 #define LINUX_NSIG              (LINUX_NBPW * LINUX_NSIG_WORDS)
  299 
  300 /* sigaction flags */
  301 #define LINUX_SA_NOCLDSTOP      0x00000001
  302 #define LINUX_SA_NOCLDWAIT      0x00000002
  303 #define LINUX_SA_SIGINFO        0x00000004
  304 #define LINUX_SA_RESTORER       0x04000000
  305 #define LINUX_SA_ONSTACK        0x08000000
  306 #define LINUX_SA_RESTART        0x10000000
  307 #define LINUX_SA_INTERRUPT      0x20000000
  308 #define LINUX_SA_NOMASK         0x40000000
  309 #define LINUX_SA_ONESHOT        0x80000000
  310 
  311 /* sigprocmask actions */
  312 #define LINUX_SIG_BLOCK         0
  313 #define LINUX_SIG_UNBLOCK       1
  314 #define LINUX_SIG_SETMASK       2
  315 
  316 /* sigset_t macros */
  317 #define LINUX_SIGEMPTYSET(set)          (set).__bits[0] = (set).__bits[1] = 0
  318 #define LINUX_SIGISMEMBER(set, sig)     SIGISMEMBER(set, sig)
  319 #define LINUX_SIGADDSET(set, sig)       SIGADDSET(set, sig)
  320 
  321 /* sigaltstack */
  322 #define LINUX_MINSIGSTKSZ       2048
  323 #define LINUX_SS_ONSTACK        1
  324 #define LINUX_SS_DISABLE        2
  325 
  326 int linux_to_bsd_sigaltstack(int lsa);
  327 int bsd_to_linux_sigaltstack(int bsa);
  328 
  329 typedef void    (*l_handler_t)(l_int);
  330 typedef l_ulong l_osigset_t;
  331 
  332 typedef struct {
  333         l_uint  __bits[LINUX_NSIG_WORDS];
  334 } l_sigset_t;
  335 
  336 typedef struct {
  337         l_handler_t     lsa_handler;
  338         l_osigset_t     lsa_mask;
  339         l_ulong         lsa_flags;
  340         void    (*lsa_restorer)(void);
  341 } l_osigaction_t;
  342 
  343 typedef struct {
  344         l_handler_t     lsa_handler;
  345         l_ulong         lsa_flags;
  346         void    (*lsa_restorer)(void);
  347         l_sigset_t      lsa_mask;
  348 } l_sigaction_t;
  349 
  350 typedef struct {
  351         void            *ss_sp;
  352         l_int           ss_flags;
  353         l_size_t        ss_size;
  354 } l_stack_t;
  355 
  356 /* The Linux sigcontext, pretty much a standard 386 trapframe. */
  357 struct l_sigcontext {
  358         l_int           sc_gs;
  359         l_int           sc_fs;
  360         l_int           sc_es;
  361         l_int           sc_ds;
  362         l_int           sc_edi;
  363         l_int           sc_esi;
  364         l_int           sc_ebp;
  365         l_int           sc_esp;
  366         l_int           sc_ebx;
  367         l_int           sc_edx;
  368         l_int           sc_ecx;
  369         l_int           sc_eax;
  370         l_int           sc_trapno;
  371         l_int           sc_err;
  372         l_int           sc_eip;
  373         l_int           sc_cs;
  374         l_int           sc_eflags;
  375         l_int           sc_esp_at_signal;
  376         l_int           sc_ss;
  377         l_int           sc_387;
  378         l_int           sc_mask;
  379         l_int           sc_cr2;
  380 };
  381 
  382 struct l_ucontext {
  383         l_ulong         uc_flags;
  384         void            *uc_link;
  385         l_stack_t       uc_stack;
  386         struct l_sigcontext     uc_mcontext;
  387         l_sigset_t      uc_sigmask;
  388 };
  389 
  390 #define LINUX_SI_MAX_SIZE       128
  391 #define LINUX_SI_PAD_SIZE       ((LINUX_SI_MAX_SIZE/sizeof(l_int)) - 3)
  392 
  393 typedef union l_sigval {
  394         l_int           sival_int;
  395         l_uintptr_t     sival_ptr;
  396 } l_sigval_t;
  397 
  398 typedef struct l_siginfo {
  399         l_int           lsi_signo;
  400         l_int           lsi_errno;
  401         l_int           lsi_code;
  402         union {
  403                 l_int   _pad[LINUX_SI_PAD_SIZE];
  404 
  405                 struct {
  406                         l_pid_t         _pid;
  407                         l_uid_t         _uid;
  408                 } _kill;
  409 
  410                 struct {
  411                         l_timer_t       _tid;
  412                         l_int           _overrun;
  413                         char            _pad[sizeof(l_uid_t) - sizeof(l_int)];
  414                         l_sigval_t      _sigval;
  415                         l_int           _sys_private;
  416                 } _timer;
  417 
  418                 struct {
  419                         l_pid_t         _pid;           /* sender's pid */
  420                         l_uid_t         _uid;           /* sender's uid */
  421                         l_sigval_t      _sigval;
  422                 } _rt;
  423 
  424                 struct {
  425                         l_pid_t         _pid;           /* which child */
  426                         l_uid_t         _uid;           /* sender's uid */
  427                         l_int           _status;        /* exit code */
  428                         l_clock_t       _utime;
  429                         l_clock_t       _stime;
  430                 } _sigchld;
  431 
  432                 struct {
  433                         l_uintptr_t     _addr;  /* Faulting insn/memory ref. */
  434                 } _sigfault;
  435 
  436                 struct {
  437                         l_long          _band;  /* POLL_IN,POLL_OUT,POLL_MSG */
  438                         l_int           _fd;
  439                 } _sigpoll;
  440         } _sifields;
  441 } l_siginfo_t;
  442 
  443 #define lsi_pid         _sifields._kill._pid
  444 #define lsi_uid         _sifields._kill._uid
  445 #define lsi_tid         _sifields._timer._tid
  446 #define lsi_overrun     _sifields._timer._overrun
  447 #define lsi_sys_private _sifields._timer._sys_private
  448 #define lsi_status      _sifields._sigchld._status
  449 #define lsi_utime       _sifields._sigchld._utime
  450 #define lsi_stime       _sifields._sigchld._stime
  451 #define lsi_value       _sifields._rt._sigval
  452 #define lsi_int         _sifields._rt._sigval.sival_int
  453 #define lsi_ptr         _sifields._rt._sigval.sival_ptr
  454 #define lsi_addr        _sifields._sigfault._addr
  455 #define lsi_band        _sifields._sigpoll._band
  456 #define lsi_fd          _sifields._sigpoll._fd
  457 
  458 struct l_fpreg {
  459         u_int16_t       significand[4];
  460         u_int16_t       exponent;
  461 };
  462 
  463 struct l_fpxreg {
  464         u_int16_t       significand[4];
  465         u_int16_t       exponent;
  466         u_int16_t       padding[3];
  467 };
  468 
  469 struct l_xmmreg {
  470         u_int32_t       element[4];
  471 };
  472 
  473 struct l_fpstate {
  474         /* Regular FPU environment */
  475         u_int32_t               cw;
  476         u_int32_t               sw;
  477         u_int32_t               tag;
  478         u_int32_t               ipoff;
  479         u_int32_t               cssel;
  480         u_int32_t               dataoff;
  481         u_int32_t               datasel;
  482         struct l_fpreg          _st[8];
  483         u_int16_t               status;
  484         u_int16_t               magic;          /* 0xffff = regular FPU data */
  485 
  486         /* FXSR FPU environment */
  487         u_int32_t               _fxsr_env[6];   /* env is ignored. */
  488         u_int32_t               mxcsr;
  489         u_int32_t               reserved;
  490         struct l_fpxreg         _fxsr_st[8];    /* reg data is ignored. */
  491         struct l_xmmreg         _xmm[8];
  492         u_int32_t               padding[56];
  493 };
  494 
  495 /*
  496  * We make the stack look like Linux expects it when calling a signal
  497  * handler, but use the BSD way of calling the handler and sigreturn().
  498  * This means that we need to pass the pointer to the handler too.
  499  * It is appended to the frame to not interfere with the rest of it.
  500  */
  501 struct l_sigframe {
  502         l_int                   sf_sig;
  503         struct l_sigcontext     sf_sc;
  504         struct l_fpstate        sf_fpstate;
  505         l_uint                  sf_extramask[LINUX_NSIG_WORDS-1];
  506         l_handler_t             sf_handler;
  507 };
  508 
  509 struct l_rt_sigframe {
  510         l_int                   sf_sig;
  511         l_siginfo_t             *sf_siginfo;
  512         struct l_ucontext       *sf_ucontext;
  513         l_siginfo_t             sf_si;
  514         struct l_ucontext       sf_sc;
  515         l_handler_t             sf_handler;
  516 };
  517 
  518 extern int bsd_to_linux_signal[];
  519 extern int linux_to_bsd_signal[];
  520 extern struct sysentvec linux_sysvec;
  521 extern struct sysentvec elf_linux_sysvec;
  522 
  523 /*
  524  * Pluggable ioctl handlers
  525  */
  526 struct linux_ioctl_args;
  527 struct thread;
  528 
  529 typedef int linux_ioctl_function_t(struct thread *, struct linux_ioctl_args *);
  530 
  531 struct linux_ioctl_handler {
  532         linux_ioctl_function_t *func;
  533         int     low, high;
  534 };
  535 
  536 int     linux_ioctl_register_handler(struct linux_ioctl_handler *h);
  537 int     linux_ioctl_unregister_handler(struct linux_ioctl_handler *h);
  538 
  539 /*
  540  * open/fcntl flags
  541  */
  542 #define LINUX_O_RDONLY          00000000
  543 #define LINUX_O_WRONLY          00000001
  544 #define LINUX_O_RDWR            00000002
  545 #define LINUX_O_ACCMODE         00000003
  546 #define LINUX_O_CREAT           00000100
  547 #define LINUX_O_EXCL            00000200
  548 #define LINUX_O_NOCTTY          00000400
  549 #define LINUX_O_TRUNC           00001000
  550 #define LINUX_O_APPEND          00002000
  551 #define LINUX_O_NONBLOCK        00004000
  552 #define LINUX_O_NDELAY          LINUX_O_NONBLOCK
  553 #define LINUX_O_SYNC            00010000
  554 #define LINUX_FASYNC            00020000
  555 #define LINUX_O_DIRECT          00040000        /* Direct disk access hint */
  556 #define LINUX_O_LARGEFILE       00100000
  557 #define LINUX_O_DIRECTORY       00200000        /* Must be a directory */
  558 #define LINUX_O_NOFOLLOW        00400000        /* Do not follow links */
  559 #define LINUX_O_NOATIME         01000000
  560 #define LINUX_O_CLOEXEC         02000000
  561 
  562 #define LINUX_F_DUPFD           0
  563 #define LINUX_F_GETFD           1
  564 #define LINUX_F_SETFD           2
  565 #define LINUX_F_GETFL           3
  566 #define LINUX_F_SETFL           4
  567 #define LINUX_F_GETLK           5
  568 #define LINUX_F_SETLK           6
  569 #define LINUX_F_SETLKW          7
  570 #define LINUX_F_SETOWN          8
  571 #define LINUX_F_GETOWN          9
  572 
  573 #define LINUX_F_GETLK64         12
  574 #define LINUX_F_SETLK64         13
  575 #define LINUX_F_SETLKW64        14
  576 
  577 #define LINUX_F_RDLCK           0
  578 #define LINUX_F_WRLCK           1
  579 #define LINUX_F_UNLCK           2
  580 
  581 /*
  582  * posix_fadvise advice
  583  */
  584 #define LINUX_POSIX_FADV_NORMAL         0
  585 #define LINUX_POSIX_FADV_RANDOM         1
  586 #define LINUX_POSIX_FADV_SEQUENTIAL     2
  587 #define LINUX_POSIX_FADV_WILLNEED       3
  588 #define LINUX_POSIX_FADV_DONTNEED       4
  589 #define LINUX_POSIX_FADV_NOREUSE        5
  590 
  591 /*
  592  * mount flags
  593  */
  594 #define LINUX_MS_RDONLY         0x0001
  595 #define LINUX_MS_NOSUID         0x0002
  596 #define LINUX_MS_NODEV          0x0004
  597 #define LINUX_MS_NOEXEC         0x0008
  598 #define LINUX_MS_REMOUNT        0x0020
  599 
  600 /*
  601  * SystemV IPC defines
  602  */
  603 #define LINUX_SEMOP             1
  604 #define LINUX_SEMGET            2
  605 #define LINUX_SEMCTL            3
  606 #define LINUX_MSGSND            11
  607 #define LINUX_MSGRCV            12
  608 #define LINUX_MSGGET            13
  609 #define LINUX_MSGCTL            14
  610 #define LINUX_SHMAT             21
  611 #define LINUX_SHMDT             22
  612 #define LINUX_SHMGET            23
  613 #define LINUX_SHMCTL            24
  614 
  615 #define LINUX_IPC_RMID          0
  616 #define LINUX_IPC_SET           1
  617 #define LINUX_IPC_STAT          2
  618 #define LINUX_IPC_INFO          3
  619 
  620 #define LINUX_SHM_LOCK          11
  621 #define LINUX_SHM_UNLOCK        12
  622 #define LINUX_SHM_STAT          13
  623 #define LINUX_SHM_INFO          14
  624 
  625 #define LINUX_SHM_RDONLY        0x1000
  626 #define LINUX_SHM_RND           0x2000
  627 #define LINUX_SHM_REMAP         0x4000
  628 
  629 /* semctl commands */
  630 #define LINUX_GETPID            11
  631 #define LINUX_GETVAL            12
  632 #define LINUX_GETALL            13
  633 #define LINUX_GETNCNT           14
  634 #define LINUX_GETZCNT           15
  635 #define LINUX_SETVAL            16
  636 #define LINUX_SETALL            17
  637 #define LINUX_SEM_STAT          18
  638 #define LINUX_SEM_INFO          19
  639 
  640 union l_semun {
  641         l_int           val;
  642         struct l_semid_ds       *buf;
  643         l_ushort        *array;
  644         struct l_seminfo        *__buf;
  645         void            *__pad;
  646 };
  647 
  648 /*
  649  * Socket defines
  650  */
  651 #define LINUX_SOCKET            1
  652 #define LINUX_BIND              2
  653 #define LINUX_CONNECT           3
  654 #define LINUX_LISTEN            4
  655 #define LINUX_ACCEPT            5
  656 #define LINUX_GETSOCKNAME       6
  657 #define LINUX_GETPEERNAME       7
  658 #define LINUX_SOCKETPAIR        8
  659 #define LINUX_SEND              9
  660 #define LINUX_RECV              10
  661 #define LINUX_SENDTO            11
  662 #define LINUX_RECVFROM          12
  663 #define LINUX_SHUTDOWN          13
  664 #define LINUX_SETSOCKOPT        14
  665 #define LINUX_GETSOCKOPT        15
  666 #define LINUX_SENDMSG           16
  667 #define LINUX_RECVMSG           17
  668 #define LINUX_ACCEPT4           18
  669 
  670 #define LINUX_SOL_SOCKET        1
  671 #define LINUX_SOL_IP            0
  672 #define LINUX_SOL_IPX           256
  673 #define LINUX_SOL_AX25          257
  674 #define LINUX_SOL_TCP           6
  675 #define LINUX_SOL_UDP           17
  676 
  677 #define LINUX_SO_DEBUG          1
  678 #define LINUX_SO_REUSEADDR      2
  679 #define LINUX_SO_TYPE           3
  680 #define LINUX_SO_ERROR          4
  681 #define LINUX_SO_DONTROUTE      5
  682 #define LINUX_SO_BROADCAST      6
  683 #define LINUX_SO_SNDBUF         7
  684 #define LINUX_SO_RCVBUF         8
  685 #define LINUX_SO_KEEPALIVE      9
  686 #define LINUX_SO_OOBINLINE      10
  687 #define LINUX_SO_NO_CHECK       11
  688 #define LINUX_SO_PRIORITY       12
  689 #define LINUX_SO_LINGER         13
  690 #define LINUX_SO_PEERCRED       17
  691 #define LINUX_SO_RCVLOWAT       18
  692 #define LINUX_SO_SNDLOWAT       19
  693 #define LINUX_SO_RCVTIMEO       20
  694 #define LINUX_SO_SNDTIMEO       21
  695 #define LINUX_SO_TIMESTAMP      29
  696 #define LINUX_SO_ACCEPTCONN     30
  697 
  698 #define LINUX_IP_TOS            1
  699 #define LINUX_IP_TTL            2
  700 #define LINUX_IP_HDRINCL        3
  701 #define LINUX_IP_OPTIONS        4
  702 
  703 #define LINUX_IP_MULTICAST_IF           32
  704 #define LINUX_IP_MULTICAST_TTL          33
  705 #define LINUX_IP_MULTICAST_LOOP         34
  706 #define LINUX_IP_ADD_MEMBERSHIP         35
  707 #define LINUX_IP_DROP_MEMBERSHIP        36
  708 
  709 #define LINUX_TCP_NODELAY       1
  710 #define LINUX_TCP_MAXSEG        2
  711 #define LINUX_TCP_KEEPIDLE      4
  712 #define LINUX_TCP_KEEPINTVL     5
  713 #define LINUX_TCP_KEEPCNT       6
  714 #define LINUX_TCP_MD5SIG        14
  715 
  716 struct l_sockaddr {
  717         l_ushort        sa_family;
  718         char            sa_data[14];
  719 };
  720 
  721 struct l_msghdr {
  722         l_uintptr_t     msg_name;
  723         l_int           msg_namelen;
  724         l_uintptr_t     msg_iov;
  725         l_size_t        msg_iovlen;
  726         l_uintptr_t     msg_control;
  727         l_size_t        msg_controllen;
  728         l_uint          msg_flags;
  729 };
  730 
  731 struct l_cmsghdr {
  732         l_size_t        cmsg_len;
  733         l_int           cmsg_level;
  734         l_int           cmsg_type;
  735 };
  736 
  737 struct l_ifmap {
  738         l_ulong         mem_start;
  739         l_ulong         mem_end;
  740         l_ushort        base_addr;
  741         u_char          irq;
  742         u_char          dma;
  743         u_char          port;
  744 };
  745 
  746 #define LINUX_IFHWADDRLEN       6
  747 #define LINUX_IFNAMSIZ          16
  748 
  749 struct l_ifreq {
  750         union {
  751                 char    ifrn_name[LINUX_IFNAMSIZ];
  752         } ifr_ifrn;
  753 
  754         union {
  755                 struct l_sockaddr       ifru_addr;
  756                 struct l_sockaddr       ifru_dstaddr;
  757                 struct l_sockaddr       ifru_broadaddr;
  758                 struct l_sockaddr       ifru_netmask;
  759                 struct l_sockaddr       ifru_hwaddr;
  760                 l_short         ifru_flags[1];
  761                 l_int           ifru_metric;
  762                 l_int           ifru_mtu;
  763                 struct l_ifmap  ifru_map;
  764                 char            ifru_slave[LINUX_IFNAMSIZ];
  765                 l_caddr_t       ifru_data;
  766         } ifr_ifru;
  767 };
  768 
  769 #define ifr_name        ifr_ifrn.ifrn_name      /* Interface name */
  770 #define ifr_hwaddr      ifr_ifru.ifru_hwaddr    /* MAC address */
  771 
  772 /*
  773  * poll()
  774  */
  775 #define LINUX_POLLIN            0x0001
  776 #define LINUX_POLLPRI           0x0002
  777 #define LINUX_POLLOUT           0x0004
  778 #define LINUX_POLLERR           0x0008
  779 #define LINUX_POLLHUP           0x0010
  780 #define LINUX_POLLNVAL          0x0020
  781 #define LINUX_POLLRDNORM        0x0040
  782 #define LINUX_POLLRDBAND        0x0080
  783 #define LINUX_POLLWRNORM        0x0100
  784 #define LINUX_POLLWRBAND        0x0200
  785 #define LINUX_POLLMSG           0x0400
  786 
  787 struct l_pollfd {
  788         l_int           fd;
  789         l_short         events;
  790         l_short         revents;
  791 };
  792 
  793 struct l_user_desc {
  794         l_uint          entry_number;
  795         l_uint          base_addr;
  796         l_uint          limit;
  797         l_uint          seg_32bit:1;
  798         l_uint          contents:2;
  799         l_uint          read_exec_only:1;
  800         l_uint          limit_in_pages:1;
  801         l_uint          seg_not_present:1;
  802         l_uint          useable:1;
  803 };
  804 
  805 struct l_desc_struct {
  806         unsigned long   a, b;
  807 };
  808 
  809 
  810 #define LINUX_LOWERWORD 0x0000ffff
  811 
  812 /*
  813  * Macros which does the same thing as those in Linux include/asm-um/ldt-i386.h.
  814  * These convert Linux user space descriptor to machine one.
  815  */
  816 #define LINUX_LDT_entry_a(info)                                 \
  817         ((((info)->base_addr & LINUX_LOWERWORD) << 16) |        \
  818         ((info)->limit & LINUX_LOWERWORD))
  819 
  820 #define LINUX_ENTRY_B_READ_EXEC_ONLY    9
  821 #define LINUX_ENTRY_B_CONTENTS          10
  822 #define LINUX_ENTRY_B_SEG_NOT_PRESENT   15
  823 #define LINUX_ENTRY_B_BASE_ADDR         16
  824 #define LINUX_ENTRY_B_USEABLE           20
  825 #define LINUX_ENTRY_B_SEG32BIT          22
  826 #define LINUX_ENTRY_B_LIMIT             23
  827 
  828 #define LINUX_LDT_entry_b(info)                                                 \
  829         (((info)->base_addr & 0xff000000) |                                     \
  830         ((info)->limit & 0xf0000) |                                             \
  831         ((info)->contents << LINUX_ENTRY_B_CONTENTS) |                          \
  832         (((info)->seg_not_present == 0) << LINUX_ENTRY_B_SEG_NOT_PRESENT) |     \
  833         (((info)->base_addr & 0x00ff0000) >> LINUX_ENTRY_B_BASE_ADDR) |         \
  834         (((info)->read_exec_only == 0) << LINUX_ENTRY_B_READ_EXEC_ONLY) |       \
  835         ((info)->seg_32bit << LINUX_ENTRY_B_SEG32BIT) |                         \
  836         ((info)->useable << LINUX_ENTRY_B_USEABLE) |                            \
  837         ((info)->limit_in_pages << LINUX_ENTRY_B_LIMIT) | 0x7000)
  838 
  839 #define LINUX_LDT_empty(info)           \
  840         ((info)->base_addr == 0 &&      \
  841         (info)->limit == 0 &&           \
  842         (info)->contents == 0 &&        \
  843         (info)->seg_not_present == 1 && \
  844         (info)->read_exec_only == 1 &&  \
  845         (info)->seg_32bit == 0 &&       \
  846         (info)->limit_in_pages == 0 &&  \
  847         (info)->useable == 0)
  848 
  849 /*
  850  * Macros for converting segments.
  851  * They do the same as those in arch/i386/kernel/process.c in Linux.
  852  */
  853 #define LINUX_GET_BASE(desc)                            \
  854         ((((desc)->a >> 16) & LINUX_LOWERWORD) |        \
  855         (((desc)->b << 16) & 0x00ff0000) |              \
  856         ((desc)->b & 0xff000000))
  857 
  858 #define LINUX_GET_LIMIT(desc)                   \
  859         (((desc)->a & LINUX_LOWERWORD) |        \
  860         ((desc)->b & 0xf0000))
  861 
  862 #define LINUX_GET_32BIT(desc)           \
  863         (((desc)->b >> LINUX_ENTRY_B_SEG32BIT) & 1)
  864 #define LINUX_GET_CONTENTS(desc)        \
  865         (((desc)->b >> LINUX_ENTRY_B_CONTENTS) & 3)
  866 #define LINUX_GET_WRITABLE(desc)        \
  867         (((desc)->b >> LINUX_ENTRY_B_READ_EXEC_ONLY) & 1)
  868 #define LINUX_GET_LIMIT_PAGES(desc)     \
  869         (((desc)->b >> LINUX_ENTRY_B_LIMIT) & 1)
  870 #define LINUX_GET_PRESENT(desc)         \
  871         (((desc)->b >> LINUX_ENTRY_B_SEG_NOT_PRESENT) & 1)
  872 #define LINUX_GET_USEABLE(desc)         \
  873         (((desc)->b >> LINUX_ENTRY_B_USEABLE) & 1)
  874 
  875 #define LINUX_CLOCK_REALTIME            0
  876 #define LINUX_CLOCK_MONOTONIC           1
  877 #define LINUX_CLOCK_PROCESS_CPUTIME_ID  2
  878 #define LINUX_CLOCK_THREAD_CPUTIME_ID   3
  879 #define LINUX_CLOCK_REALTIME_HR         4
  880 #define LINUX_CLOCK_MONOTONIC_HR        5
  881 
  882 #define LINUX_CLONE_VM                  0x00000100
  883 #define LINUX_CLONE_FS                  0x00000200
  884 #define LINUX_CLONE_FILES               0x00000400
  885 #define LINUX_CLONE_SIGHAND             0x00000800
  886 #define LINUX_CLONE_PID                 0x00001000      /* No longer exist in Linux */
  887 #define LINUX_CLONE_VFORK               0x00004000
  888 #define LINUX_CLONE_PARENT              0x00008000
  889 #define LINUX_CLONE_THREAD              0x00010000
  890 #define LINUX_CLONE_SETTLS              0x00080000
  891 #define LINUX_CLONE_PARENT_SETTID       0x00100000
  892 #define LINUX_CLONE_CHILD_CLEARTID      0x00200000
  893 #define LINUX_CLONE_CHILD_SETTID        0x01000000
  894 
  895 #define LINUX_THREADING_FLAGS                                   \
  896         (LINUX_CLONE_VM | LINUX_CLONE_FS | LINUX_CLONE_FILES |  \
  897         LINUX_CLONE_SIGHAND | LINUX_CLONE_THREAD)
  898 
  899 /* robust futexes */
  900 struct linux_robust_list {
  901         struct linux_robust_list        *next;
  902 };
  903 
  904 struct linux_robust_list_head {
  905         struct linux_robust_list        list;
  906         l_long                          futex_offset;
  907         struct linux_robust_list        *pending_list;
  908 };
  909 
  910 int linux_set_upcall_kse(struct thread *td, register_t stack);
  911 int linux_set_cloned_tls(struct thread *td, void *desc);
  912 
  913 #endif /* !_I386_LINUX_H_ */

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