src/sys/setpag.c

   1 /*
   2  * Copyright 2000, International Business Machines Corporation and others.
   3  * All Rights Reserved.
   4  *
   5  * This software has been released under the terms of the IBM Public
   6  * License.  For details, see the LICENSE file in the top-level source
   7  * directory or online at http://www.openafs.org/dl/license10.html
   8  *
   9  * This file contains the lsetpag system call.  (setpag is handled by the
  10  * rmtsys layer and turned into either setpag or a remote call as is
  11  * appropriate.)  It is kept separate to allow for the creation of a simple
  12  * shared library containing only setpag.
  13  */
  14
  15 #include <afsconfig.h>
  16 #include <afs/param.h>
  17
  18 #include <roken.h>
  19
  20 #if !defined(AFS_AIX_ENV) && !defined(AFS_NT40_ENV)
  21 # include <sys/syscall.h>
  22 #endif
  23
  24 #include <afs/afs_args.h>
  25 #include <afs/sys_prototypes.h>
  26
  27 #include "afssyscalls.h"
  28
  29 #ifdef AFS_AIX32_ENV
  30 /*
  31  * in VRMIX, system calls look just like function calls, so we don't
  32  * need to do anything!
  33  */
  34
  35 #else
  36 #if defined(AFS_SGI_ENV)
  37
  38 #pragma weak xlsetpag = lsetpag
  39
  40 int
  41 lsetpag(void)
  42 {
  43     return (syscall(AFS_SETPAG));
  44 }
  45
  46 #else /* AFS_SGI_ENV */
  47
  48 int
  49 lsetpag(void)
  50 {
  51     int errcode;
  52
  53 #ifdef AFS_LINUX20_ENV
  54     int rval;
  55
  56     rval = proc_afs_syscall(AFSCALL_SETPAG,0,0,0,0,&errcode);
  57
  58     if(rval) {
  59 # ifdef AFS_SYSCALL
  60       errcode = syscall(AFS_SYSCALL, AFSCALL_SETPAG);
  61 # else
  62       errcode = -1;
  63 # endif
  64     }
  65
  66 #elif defined(AFS_DARWIN80_ENV)
  67     int rval;
  68
  69     rval = ioctl_afs_syscall(AFSCALL_SETPAG,0,0,0,0,0,0,&errcode);
  70     if (rval) {
  71         errcode = rval;
  72     }
  73 #elif defined(AFS_SUN511_ENV)
  74     int rval;
  75
  76     rval = ioctl_sun_afs_syscall(AFSCALL_SETPAG,0,0,0,0,0,0,&errcode);
  77     if (rval) {
  78         errcode = rval;
  79     }
  80 #else
  81     errcode = syscall(AFS_SYSCALL, AFSCALL_SETPAG);
  82 #endif
  83
  84     return (errcode);
  85 }
  86
  87 #endif /* !AFS_SGI_ENV */
  88 #endif /* !AFS_AIX32_ENV */