ia32_misc.c

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2009 Konstantin Belousov
    5  * All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  *
   16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   26  * SUCH DAMAGE.
   27  */
   28 
   29 #include <sys/cdefs.h>
   30 __FBSDID("$FreeBSD$");
   31 
   32 #include <sys/param.h>
   33 #include <sys/mount.h>
   34 #include <sys/proc.h>
   35 #include <sys/socket.h>
   36 #include <sys/sysent.h>
   37 #include <sys/sysproto.h>
   38 #include <sys/systm.h>
   39 #include <sys/uio.h>
   40 
   41 #include <machine/cpu.h>
   42 #include <machine/sysarch.h>
   43 
   44 #include <compat/freebsd32/freebsd32_util.h>
   45 #include <compat/freebsd32/freebsd32.h>
   46 #include <compat/freebsd32/freebsd32_proto.h>
   47 
   48 int
   49 freebsd32_sysarch(struct thread *td, struct freebsd32_sysarch_args *uap)
   50 {
   51         struct sysarch_args uap1;
   52         struct i386_ldt_args uapl;
   53         struct i386_ldt_args32 uapl32;
   54         int error;
   55 
   56         if (uap->op == I386_SET_LDT || uap->op == I386_GET_LDT) {
   57                 if ((error = copyin(uap->parms, &uapl32, sizeof(uapl32))) != 0)
   58                         return (error);
   59                 uap1.op = uap->op;
   60                 uap1.parms = (char *)&uapl;
   61                 uapl.start = uapl32.start;
   62                 uapl.descs = (struct user_segment_descriptor *)(uintptr_t)
   63                     uapl32.descs;
   64                 uapl.num = uapl32.num;
   65                 return (sysarch_ldt(td, &uap1, UIO_SYSSPACE));
   66         } else {
   67                 uap1.op = uap->op;
   68                 uap1.parms = uap->parms;
   69                 return (sysarch(td, &uap1));
   70         }
   71 }

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FreeBSD/Linux Kernel Cross Reference sys/amd64/ia32/ia32_misc.c

FreeBSD/Linux Kernel Cross Reference
sys/amd64/ia32/ia32_misc.c