Home | History | Annotate | Line # | Download | only in netbsd32
netbsd32_sem.c revision 1.1.14.3
      1 /*	$NetBSD: netbsd32_sem.c,v 1.1.14.3 2007/02/26 09:09:32 yamt Exp $	*/
      2 
      3 /*
      4  *  Copyright (c) 2006 The NetBSD Foundation.
      5  *  All rights reserved.
      6  *
      7  *  This code is derived from software contributed to the NetBSD Foundation
      8  *  by Quentin Garnier.
      9  *
     10  *  Redistribution and use in source and binary forms, with or without
     11  *  modification, are permitted provided that the following conditions
     12  *  are met:
     13  *  1. Redistributions of source code must retain the above copyright
     14  *     notice, this list of conditions and the following disclaimer.
     15  *  2. Redistributions in binary form must reproduce the above copyright
     16  *     notice, this list of conditions and the following disclaimer in the
     17  *     documentation and/or other materials provided with the distribution.
     18  *  3. All advertising materials mentioning features or use of this software
     19  *     must display the following acknowledgement:
     20  *         This product includes software developed by the NetBSD
     21  *         Foundation, Inc. and its contributors.
     22  *  4. Neither the name of The NetBSD Foundation nor the names of its
     23  *     contributors may be used to endorse or promote products derived
     24  *     from this software without specific prior written permission.
     25  *
     26  *  THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  *  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  *  TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  *  PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  *  BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  *  POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #include <sys/cdefs.h>
     40 __KERNEL_RCSID(0, "$NetBSD: netbsd32_sem.c,v 1.1.14.3 2007/02/26 09:09:32 yamt Exp $");
     41 
     42 #ifdef _KERNEL_OPT
     43 #include "opt_posix.h"
     44 #endif
     45 
     46 #include <sys/types.h>
     47 #include <sys/param.h>
     48 #include <sys/systm.h>
     49 #include <sys/kernel.h>
     50 #include <sys/dirent.h>
     51 #include <sys/ksem.h>
     52 #include <sys/mount.h>
     53 #include <sys/proc.h>
     54 #include <sys/syscallargs.h>
     55 
     56 #include <compat/netbsd32/netbsd32.h>
     57 #include <compat/netbsd32/netbsd32_syscallargs.h>
     58 #include <compat/netbsd32/netbsd32_conv.h>
     59 
     60 static int
     61 netbsd32_ksem_copyout(const void *src, void *dst, size_t size)
     62 {
     63 	const semid_t *idp = src;
     64 	netbsd32_semid_t id32, *outidp = dst;
     65 
     66 	KASSERT(size == sizeof(semid_t));
     67 
     68 	id32 = (netbsd32_semidp_t)(*idp & 0xffffffff);
     69 	return copyout(&id32, outidp, sizeof(id32));
     70 }
     71 
     72 int
     73 netbsd32__ksem_init(struct lwp *l, void *v, register_t *retval)
     74 {
     75 	struct netbsd32__ksem_init_args /* {
     76 		syscallarg(unsigned int) value;
     77 		syscallarg(netbsd32_semidp_t) idp;
     78 	} */ *uap = v;
     79 
     80 	return do_ksem_init(l, SCARG(uap, value),
     81 	    NETBSD32PTR64(SCARG(uap, idp)), netbsd32_ksem_copyout);
     82 }
     83 
     84 int
     85 netbsd32__ksem_open(struct lwp *l, void *v, register_t *retval)
     86 {
     87 	struct netbsd32__ksem_open_args /* {
     88 		syscallarg(const netbsd32_charp) name;
     89 		syscallarg(int) oflag;
     90 		syscallarg(mode_t) mode;
     91 		syscallarg(unsigned int) value;
     92 		syscallarg(netbsd32_semidp_t) idp;
     93 	} */ *uap = v;
     94 
     95 	return do_ksem_open(l, NETBSD32PTR64(SCARG(uap, name)),
     96 	    SCARG(uap, oflag), SCARG(uap, mode), SCARG(uap, value),
     97 	    NETBSD32PTR64(SCARG(uap, idp)), netbsd32_ksem_copyout);
     98 }
     99 
    100 int
    101 netbsd32__ksem_unlink(struct lwp *l, void *v, register_t *retval)
    102 {
    103 	struct netbsd32__ksem_unlink_args /* {
    104 		syscallarg(const netbsd32_charp) name;
    105 	} */ *uap = v;
    106 	struct sys__ksem_unlink_args ua;
    107 
    108 	NETBSD32TOP_UAP(name, const char);
    109 	return sys__ksem_unlink(l, &ua, retval);
    110 }
    111 
    112 int
    113 netbsd32__ksem_close(struct lwp *l, void *v, register_t *retval)
    114 {
    115 	struct netbsd32__ksem_close_args /* {
    116 		syscallarg(netbsd32_semid_t) id;
    117 	} */ *uap = v;
    118 	struct sys__ksem_close_args ua;
    119 
    120 	NETBSD32TOX_UAP(id, semid_t);
    121 	return sys__ksem_close(l, &ua, retval);
    122 }
    123 
    124 int
    125 netbsd32__ksem_post(struct lwp *l, void *v, register_t *retval)
    126 {
    127 	struct netbsd32__ksem_post_args /* {
    128 		syscallarg(netbsd32_semid_t) id;
    129 	} */ *uap = v;
    130 	struct sys__ksem_post_args ua;
    131 
    132 	NETBSD32TOX_UAP(id, semid_t);
    133 	return sys__ksem_post(l, &ua, retval);
    134 }
    135 
    136 int
    137 netbsd32__ksem_wait(struct lwp *l, void *v, register_t *retval)
    138 {
    139 	struct netbsd32__ksem_wait_args /* {
    140 		syscallarg(netbsd32_semid_t) id;
    141 	} */ *uap = v;
    142 	struct sys__ksem_wait_args ua;
    143 
    144 	NETBSD32TOX_UAP(id, semid_t);
    145 	return sys__ksem_wait(l, &ua, retval);
    146 }
    147 
    148 int
    149 netbsd32__ksem_trywait(struct lwp *l, void *v, register_t *retval)
    150 {
    151 	struct netbsd32__ksem_trywait_args /* {
    152 		syscallarg(netbsd32_semid_t) id;
    153 	} */ *uap = v;
    154 	struct sys__ksem_trywait_args ua;
    155 
    156 	NETBSD32TOX_UAP(id, semid_t);
    157 	return sys__ksem_trywait(l, &ua, retval);
    158 }
    159 
    160 int
    161 netbsd32__ksem_destroy(struct lwp *l, void *v, register_t *retval)
    162 {
    163 	struct netbsd32__ksem_destroy_args /* {
    164 		syscallarg(netbsd32_semid_t) id;
    165 	} */ *uap = v;
    166 	struct sys__ksem_destroy_args ua;
    167 
    168 	NETBSD32TOX_UAP(id, semid_t);
    169 	return sys__ksem_destroy(l, &ua, retval);
    170 }
    171 
    172 int
    173 netbsd32__ksem_getvalue(struct lwp *l, void *v, register_t *retval)
    174 {
    175 	struct netbsd32__ksem_getvalue_args /* {
    176 		syscallarg(netbsd32_semid_t) id;
    177 		syscallarg(netbsd32_intp) value;
    178 	} */ *uap = v;
    179 	struct sys__ksem_getvalue_args ua;
    180 
    181 	NETBSD32TOX_UAP(id, semid_t);
    182 	NETBSD32TOP_UAP(value, unsigned int);
    183 	return sys__ksem_getvalue(l, &ua, retval);
    184 }
    185