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/compat/linux/linux_misc.h

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    1 /*-
    2  * Copyright (c) 2006 Roman Divacky
    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: releng/11.0/sys/compat/linux/linux_misc.h 297781 2016-04-10 07:11:29Z dchagin $
   29  */
   30 
   31 #ifndef _LINUX_MISC_H_
   32 #define _LINUX_MISC_H_
   33 
   34 #include <sys/sysctl.h>
   35 
   36                                 /* bits per mask */
   37 #define LINUX_NFDBITS           sizeof(l_fd_mask) * 8
   38 
   39 /*
   40  * Miscellaneous
   41  */
   42 #define LINUX_NAME_MAX          255
   43 #define LINUX_MAX_UTSNAME       65
   44 
   45 #define LINUX_CTL_MAXNAME       10
   46 
   47 /* defines for prctl */
   48 #define LINUX_PR_SET_PDEATHSIG  1       /* Second arg is a signal. */
   49 #define LINUX_PR_GET_PDEATHSIG  2       /*
   50                                          * Second arg is a ptr to return the
   51                                          * signal.
   52                                          */
   53 #define LINUX_PR_GET_KEEPCAPS   7       /* Get drop capabilities on setuid */
   54 #define LINUX_PR_SET_KEEPCAPS   8       /* Set drop capabilities on setuid */
   55 #define LINUX_PR_SET_NAME       15      /* Set process name. */
   56 #define LINUX_PR_GET_NAME       16      /* Get process name. */
   57 
   58 #define LINUX_MAX_COMM_LEN      16      /* Maximum length of the process name. */
   59 
   60 #define LINUX_MREMAP_MAYMOVE    1
   61 #define LINUX_MREMAP_FIXED      2
   62 
   63 #define LINUX_PATH_MAX          4096
   64 
   65 extern const char *linux_kplatform;
   66 
   67 /*
   68  * Non-standard aux entry types used in Linux ELF binaries.
   69  */
   70 
   71 #define LINUX_AT_PLATFORM       15      /* String identifying CPU */
   72 #define LINUX_AT_HWCAP          16      /* CPU capabilities */
   73 #define LINUX_AT_CLKTCK         17      /* frequency at which times() increments */
   74 #define LINUX_AT_SECURE         23      /* secure mode boolean */
   75 #define LINUX_AT_BASE_PLATFORM  24      /* string identifying real platform, may
   76                                          * differ from AT_PLATFORM.
   77                                          */
   78 #define LINUX_AT_RANDOM         25      /* address of random bytes */
   79 #define LINUX_AT_EXECFN         31      /* filename of program */
   80 #define LINUX_AT_SYSINFO        32      /* vsyscall */
   81 #define LINUX_AT_SYSINFO_EHDR   33      /* vdso header */
   82 
   83 #define LINUX_AT_RANDOM_LEN     16      /* size of random bytes */
   84 
   85 /* Linux sets the i387 to extended precision. */
   86 #if defined(__i386__) || defined(__amd64__)
   87 #define __LINUX_NPXCW__         0x37f
   88 #endif
   89 
   90 #define LINUX_CLONE_VM                  0x00000100
   91 #define LINUX_CLONE_FS                  0x00000200
   92 #define LINUX_CLONE_FILES               0x00000400
   93 #define LINUX_CLONE_SIGHAND             0x00000800
   94 #define LINUX_CLONE_PID                 0x00001000      /* No longer exist in Linux */
   95 #define LINUX_CLONE_VFORK               0x00004000
   96 #define LINUX_CLONE_PARENT              0x00008000
   97 #define LINUX_CLONE_THREAD              0x00010000
   98 #define LINUX_CLONE_SETTLS              0x00080000
   99 #define LINUX_CLONE_PARENT_SETTID       0x00100000
  100 #define LINUX_CLONE_CHILD_CLEARTID      0x00200000
  101 #define LINUX_CLONE_CHILD_SETTID        0x01000000
  102 
  103 /* Scheduling policies */
  104 #define LINUX_SCHED_OTHER       0
  105 #define LINUX_SCHED_FIFO        1
  106 #define LINUX_SCHED_RR          2
  107 
  108 struct l_new_utsname {
  109         char    sysname[LINUX_MAX_UTSNAME];
  110         char    nodename[LINUX_MAX_UTSNAME];
  111         char    release[LINUX_MAX_UTSNAME];
  112         char    version[LINUX_MAX_UTSNAME];
  113         char    machine[LINUX_MAX_UTSNAME];
  114         char    domainname[LINUX_MAX_UTSNAME];
  115 };
  116 
  117 #define LINUX_CLOCK_REALTIME            0
  118 #define LINUX_CLOCK_MONOTONIC           1
  119 #define LINUX_CLOCK_PROCESS_CPUTIME_ID  2
  120 #define LINUX_CLOCK_THREAD_CPUTIME_ID   3
  121 #define LINUX_CLOCK_REALTIME_HR         4
  122 #define LINUX_CLOCK_MONOTONIC_HR        5
  123 
  124 #define LINUX_UTIME_NOW                 0x3FFFFFFF
  125 #define LINUX_UTIME_OMIT                0x3FFFFFFE
  126 
  127 extern int stclohz;
  128 
  129 #define LINUX_WNOHANG           0x00000001
  130 #define LINUX_WUNTRACED         0x00000002
  131 #define LINUX_WSTOPPED          LINUX_WUNTRACED
  132 #define LINUX_WEXITED           0x00000004
  133 #define LINUX_WCONTINUED        0x00000008
  134 #define LINUX_WNOWAIT           0x01000000
  135 
  136 
  137 #define __WNOTHREAD             0x20000000
  138 #define __WALL                  0x40000000
  139 #define __WCLONE                0x80000000
  140 
  141 /* Linux waitid idtype  */
  142 #define LINUX_P_ALL             0
  143 #define LINUX_P_PID             1
  144 #define LINUX_P_PGID            2
  145 
  146 #define LINUX_RLIMIT_LOCKS      RLIM_NLIMITS + 1
  147 #define LINUX_RLIMIT_SIGPENDING RLIM_NLIMITS + 2
  148 #define LINUX_RLIMIT_MSGQUEUE   RLIM_NLIMITS + 3
  149 #define LINUX_RLIMIT_NICE       RLIM_NLIMITS + 4
  150 #define LINUX_RLIMIT_RTPRIO     RLIM_NLIMITS + 5
  151 #define LINUX_RLIMIT_RTTIME     RLIM_NLIMITS + 6
  152 
  153 #define LINUX_RLIM_INFINITY     (~0UL)
  154 
  155 int linux_common_wait(struct thread *td, int pid, int *status,
  156                         int options, struct rusage *ru);
  157 void linux_to_bsd_waitopts(int options, int *bsdopts);
  158 int linux_set_upcall_kse(struct thread *td, register_t stack);
  159 int linux_set_cloned_tls(struct thread *td, void *desc);
  160 struct thread   *linux_tdfind(struct thread *, lwpid_t, pid_t);
  161 
  162 int linux_sysctl_debug(SYSCTL_HANDLER_ARGS);
  163 
  164 #endif  /* _LINUX_MISC_H_ */

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