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linux32_mman.c revision 1.6 
      1 /*	$NetBSD: linux32_mman.c,v 1.6 2007/12/20 23:02:58 dsl Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2006 Emmanuel Dreyfus, all rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     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. All advertising materials mentioning features or use of this software
     15  *    must display the following acknowledgement:
     16  *	This product includes software developed by Emmanuel Dreyfus
     17  * 4. The name of the author may not be used to endorse or promote
     18  *    products derived from this software without specific prior written
     19  *    permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE THE AUTHOR AND CONTRIBUTORS ``AS IS''
     22  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     23  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     24  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
     25  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     31  * POSSIBILITY OF SUCH DAMAGE.
     32  */
     33 
     34 #include <sys/cdefs.h>
     35 
     36 __KERNEL_RCSID(0, "$NetBSD: linux32_mman.c,v 1.6 2007/12/20 23:02:58 dsl Exp $");
     37 
     38 #include <sys/types.h>
     39 #include <sys/param.h>
     40 #include <sys/fstypes.h>
     41 #include <sys/signal.h>
     42 #include <sys/dirent.h>
     43 #include <sys/kernel.h>
     44 #include <sys/fcntl.h>
     45 #include <sys/select.h>
     46 #include <sys/proc.h>
     47 #include <sys/ucred.h>
     48 #include <sys/swap.h>
     49 
     50 #include <machine/types.h>
     51 
     52 #include <sys/syscallargs.h>
     53 
     54 #include <compat/netbsd32/netbsd32.h>
     55 #include <compat/netbsd32/netbsd32_conv.h>
     56 #include <compat/netbsd32/netbsd32_syscallargs.h>
     57 
     58 #include <compat/linux/common/linux_types.h>
     59 #include <compat/linux/common/linux_signal.h>
     60 #include <compat/linux/common/linux_machdep.h>
     61 #include <compat/linux/common/linux_misc.h>
     62 #include <compat/linux/common/linux_mmap.h>
     63 #include <compat/linux/common/linux_oldolduname.h>
     64 #include <compat/linux/linux_syscallargs.h>
     65 
     66 #include <compat/linux32/common/linux32_types.h>
     67 #include <compat/linux32/common/linux32_signal.h>
     68 #include <compat/linux32/common/linux32_machdep.h>
     69 #include <compat/linux32/common/linux32_sysctl.h>
     70 #include <compat/linux32/common/linux32_socketcall.h>
     71 #include <compat/linux32/linux32_syscallargs.h>
     72 
     73 int
     74 linux32_sys_old_mmap(struct lwp *l, const struct linux32_sys_old_mmap_args *uap, register_t *retval)
     75 {
     76 	/* {
     77 		syscallarg(linux32_oldmmapp) lmp;
     78 	} */
     79 	struct linux_sys_old_mmap_args ua;
     80 
     81 	NETBSD32TOP_UAP(lmp, struct linux_oldmmap);
     82 	return linux_sys_old_mmap(l, &ua, retval);
     83 }
     84 
     85 int
     86 linux32_sys_mprotect(struct lwp *l, const struct linux32_sys_mprotect_args *uap, register_t *retval)
     87 {
     88 	/* {
     89 		syscallarg(netbsd32_voidp) start;
     90 		syscallarg(netbsd32_long) len;
     91 		syscallarg(int) prot;
     92 	} */
     93 	struct linux_sys_mprotect_args ua;
     94 
     95 	NETBSD32TOP_UAP(start, void);
     96 	NETBSD32TOX_UAP(len, long);
     97 	NETBSD32TO64_UAP(prot);
     98 	return (linux_sys_mprotect(l, &ua, retval));
     99 }
    100 
    101 int
    102 linux32_sys_mremap(struct lwp *l, const struct linux32_sys_mremap_args *uap, register_t *retval)
    103 {
    104 	/* {
    105 		syscallarg(netbsd32_voidp) old_address;
    106 		syscallarg(netbsd32_size_t) old_size;
    107 		syscallarg(netbsd32_size_t) new_size;
    108 		syscallarg(netbsd32_u_long) flags;
    109 	} */
    110 	struct linux_sys_mremap_args ua;
    111 
    112 	NETBSD32TOP_UAP(old_address, void);
    113 	NETBSD32TOX_UAP(old_size, size_t);
    114 	NETBSD32TOX_UAP(new_size, size_t);
    115 	NETBSD32TOX_UAP(flags, u_long);
    116 
    117 	return linux_sys_mremap(l, &ua, retval);
    118 }
    119 
    120 int
    121 linux32_sys_mmap2(struct lwp *l, const struct linux32_sys_mmap2_args *uap, register_t *retval)
    122 {
    123 	/* {
    124 		syscallarg(netbsd32_u_long) addr;
    125 		syscallarg(netbsd32_size_t) len;
    126 		syscallarg(int) prot;
    127 		syscallarg(int) flags;
    128 		syscallarg(int) fd;
    129 		syscallarg(linux32_off_t) offset;
    130 	} */
    131 	struct linux_sys_mmap_args ua;
    132 
    133 	NETBSD32TOX64_UAP(addr, u_long);
    134 	NETBSD32TOX64_UAP(len, size_t);
    135 	NETBSD32TO64_UAP(prot);
    136 	NETBSD32TO64_UAP(flags);
    137 	NETBSD32TO64_UAP(fd);
    138 	NETBSD32TOX64_UAP(offset, linux_off_t);
    139 
    140 	return linux_sys_mmap2(l, &ua, retval);
    141 }
    142