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/10.2/sys/compat/linux/linux_misc.h 246085 2013-01-29 18:41:30Z jhb $
   29  */
   30 
   31 #ifndef _LINUX_MISC_H_
   32 #define _LINUX_MISC_H_
   33 
   34 /*
   35  * Miscellaneous
   36  */
   37 #define LINUX_NAME_MAX          255
   38 #define LINUX_MAX_UTSNAME       65
   39 
   40 #define LINUX_CTL_MAXNAME       10
   41 
   42 /* defines for prctl */
   43 #define LINUX_PR_SET_PDEATHSIG  1       /* Second arg is a signal. */
   44 #define LINUX_PR_GET_PDEATHSIG  2       /*
   45                                          * Second arg is a ptr to return the
   46                                          * signal.
   47                                          */
   48 #define LINUX_PR_GET_KEEPCAPS   7       /* Get drop capabilities on setuid */
   49 #define LINUX_PR_SET_KEEPCAPS   8       /* Set drop capabilities on setuid */
   50 #define LINUX_PR_SET_NAME       15      /* Set process name. */
   51 #define LINUX_PR_GET_NAME       16      /* Get process name. */
   52 
   53 #define LINUX_MAX_COMM_LEN      16      /* Maximum length of the process name. */
   54 
   55 #define LINUX_MREMAP_MAYMOVE    1
   56 #define LINUX_MREMAP_FIXED      2
   57 
   58 extern const char *linux_platform;
   59 
   60 /*
   61  * Non-standard aux entry types used in Linux ELF binaries.
   62  */
   63 
   64 #define LINUX_AT_PLATFORM       15      /* String identifying CPU */
   65 #define LINUX_AT_HWCAP          16      /* CPU capabilities */
   66 #define LINUX_AT_CLKTCK         17      /* frequency at which times() increments */
   67 #define LINUX_AT_SECURE         23      /* secure mode boolean */
   68 #define LINUX_AT_BASE_PLATFORM  24      /* string identifying real platform, may
   69                                          * differ from AT_PLATFORM.
   70                                          */
   71 #define LINUX_AT_EXECFN         31      /* filename of program */
   72 
   73 /* Linux sets the i387 to extended precision. */
   74 #if defined(__i386__) || defined(__amd64__)
   75 #define __LINUX_NPXCW__         0x37f
   76 #endif
   77 
   78 #define LINUX_CLONE_VM                  0x00000100
   79 #define LINUX_CLONE_FS                  0x00000200
   80 #define LINUX_CLONE_FILES               0x00000400
   81 #define LINUX_CLONE_SIGHAND             0x00000800
   82 #define LINUX_CLONE_PID                 0x00001000      /* No longer exist in Linux */
   83 #define LINUX_CLONE_VFORK               0x00004000
   84 #define LINUX_CLONE_PARENT              0x00008000
   85 #define LINUX_CLONE_THREAD              0x00010000
   86 #define LINUX_CLONE_SETTLS              0x00080000
   87 #define LINUX_CLONE_PARENT_SETTID       0x00100000
   88 #define LINUX_CLONE_CHILD_CLEARTID      0x00200000
   89 #define LINUX_CLONE_CHILD_SETTID        0x01000000
   90 
   91 #define LINUX_THREADING_FLAGS                                   \
   92         (LINUX_CLONE_VM | LINUX_CLONE_FS | LINUX_CLONE_FILES |  \
   93         LINUX_CLONE_SIGHAND | LINUX_CLONE_THREAD)
   94 
   95 /* Scheduling policies */
   96 #define LINUX_SCHED_OTHER       0
   97 #define LINUX_SCHED_FIFO        1
   98 #define LINUX_SCHED_RR          2
   99 
  100 struct l_new_utsname {
  101         char    sysname[LINUX_MAX_UTSNAME];
  102         char    nodename[LINUX_MAX_UTSNAME];
  103         char    release[LINUX_MAX_UTSNAME];
  104         char    version[LINUX_MAX_UTSNAME];
  105         char    machine[LINUX_MAX_UTSNAME];
  106         char    domainname[LINUX_MAX_UTSNAME];
  107 };
  108 
  109 #define LINUX_CLOCK_REALTIME            0
  110 #define LINUX_CLOCK_MONOTONIC           1
  111 #define LINUX_CLOCK_PROCESS_CPUTIME_ID  2
  112 #define LINUX_CLOCK_THREAD_CPUTIME_ID   3
  113 #define LINUX_CLOCK_REALTIME_HR         4
  114 #define LINUX_CLOCK_MONOTONIC_HR        5
  115 
  116 extern int stclohz;
  117 
  118 #define __WCLONE 0x80000000
  119 
  120 int linux_common_wait(struct thread *td, int pid, int *status,
  121                         int options, struct rusage *ru);
  122 int linux_set_upcall_kse(struct thread *td, register_t stack);
  123 int linux_set_cloned_tls(struct thread *td, void *desc);
  124 
  125 #endif  /* _LINUX_MISC_H_ */

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