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netbsd32_lwp.c revision 1.2.6.3
      1 /*	$NetBSD: netbsd32_lwp.c,v 1.2.6.3 2007/12/09 16:03:57 reinoud Exp $	*/
      2 
      3 /*
      4  *  Copyright (c) 2005, 2006, 2007 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. Neither the name of The NetBSD Foundation nor the names of its
     19  *     contributors may be used to endorse or promote products derived
     20  *     from this software without specific prior written permission.
     21  *
     22  *  THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     23  *  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     24  *  TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     25  *  PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     26  *  BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     27  *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     28  *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     29  *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     30  *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     31  *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     32  *  POSSIBILITY OF SUCH DAMAGE.
     33  */
     34 
     35 #include <sys/cdefs.h>
     36 __KERNEL_RCSID(0, "$NetBSD: netbsd32_lwp.c,v 1.2.6.3 2007/12/09 16:03:57 reinoud Exp $");
     37 
     38 #include <sys/types.h>
     39 #include <sys/param.h>
     40 #include <sys/systm.h>
     41 #include <sys/kernel.h>
     42 #include <sys/dirent.h>
     43 #include <sys/mount.h>
     44 #include <sys/proc.h>
     45 #include <sys/syscallargs.h>
     46 #include <sys/lwpctl.h>
     47 
     48 #include <compat/netbsd32/netbsd32.h>
     49 #include <compat/netbsd32/netbsd32_syscallargs.h>
     50 #include <compat/netbsd32/netbsd32_conv.h>
     51 
     52 /* Sycalls conversion */
     53 
     54 int
     55 netbsd32__lwp_create(struct lwp *l, void *v, register_t *retval)
     56 {
     57 	struct netbsd32__lwp_create_args /* {
     58 		syscallarg(const netbsd32_ucontextp) ucp;
     59 		syscallarg(netbsd32_u_long) flags;
     60 		syscallarg(netbsd32_lwpidp) new_lwp;
     61 	} */ *uap = v;
     62 	struct sys__lwp_create_args ua;
     63 
     64 	NETBSD32TOP_UAP(ucp, const ucontext_t);
     65 	NETBSD32TO64_UAP(flags);
     66 	NETBSD32TOP_UAP(new_lwp, lwpid_t);
     67 
     68 	return sys__lwp_create(l, &ua, retval);
     69 }
     70 
     71 int
     72 netbsd32__lwp_wait(struct lwp *l, void *v, register_t *retval)
     73 {
     74 	struct netbsd32__lwp_wait_args /* {
     75 		syscallarg(lwpid_t) wait_for;
     76 		syscallarg(netbsd32_lwpidp) departed;
     77 	} */ *uap = v;
     78 	struct sys__lwp_wait_args ua;
     79 
     80 	NETBSD32TO64_UAP(wait_for);
     81 	NETBSD32TOP_UAP(departed, lwpid_t);
     82 	return sys__lwp_wait(l, &ua, retval);
     83 }
     84 
     85 int
     86 netbsd32__lwp_suspend(struct lwp *l, void *v, register_t *retval)
     87 {
     88 	struct netbsd32__lwp_suspend_args /* {
     89 		syscallarg(lwpid_t) target;
     90 	} */ *uap = v;
     91 	struct sys__lwp_suspend_args ua;
     92 
     93 	NETBSD32TO64_UAP(target);
     94 	return sys__lwp_suspend(l, &ua, retval);
     95 }
     96 
     97 int
     98 netbsd32__lwp_continue(struct lwp *l, void *v, register_t *retval)
     99 {
    100 	struct netbsd32__lwp_continue_args /* {
    101 		syscallarg(lwpid_t) target;
    102 	} */ *uap = v;
    103 	struct sys__lwp_continue_args ua;
    104 
    105 	NETBSD32TO64_UAP(target);
    106 	return sys__lwp_continue(l, &ua, retval);
    107 }
    108 
    109 int
    110 netbsd32__lwp_wakeup(struct lwp *l, void *v, register_t *retval)
    111 {
    112 	struct netbsd32__lwp_wakeup_args /* {
    113 		syscallarg(lwpid_t) target;
    114 	} */ *uap = v;
    115 	struct sys__lwp_wakeup_args ua;
    116 
    117 	NETBSD32TO64_UAP(target);
    118 	return sys__lwp_wakeup(l, &ua, retval);
    119 }
    120 
    121 int
    122 netbsd32__lwp_setprivate(struct lwp *l, void *v, register_t *retval)
    123 {
    124 	struct netbsd32__lwp_setprivate_args /* {
    125 		syscallarg(netbsd32_voidp) ptr;
    126 	} */ *uap = v;
    127 	struct sys__lwp_setprivate_args ua;
    128 
    129 	NETBSD32TOP_UAP(ptr, void);
    130 	return sys__lwp_setprivate(l, &ua, retval);
    131 }
    132 
    133 int
    134 netbsd32__lwp_park(struct lwp *l, void *v, register_t *retval)
    135 {
    136 	struct netbsd32__lwp_park_args /* {
    137 		syscallarg(const netbsd32_timespecp) ts;
    138 		syscallarg(netbsd32_ucontextp) ucp;
    139 		syscallarg(netbsd32_voidp) hint;
    140 	} */ *uap = v;
    141 	struct sys__lwp_park_args ua;
    142 	struct timespec *tsp = NULL;
    143 
    144 	if (SCARG_P32(uap, ts)) {
    145 		struct timespec ts;
    146 		struct netbsd32_timespec ts32;
    147 		int error;
    148 		void *sg;
    149 
    150 		if ((error = copyin(SCARG_P32(uap, ts), &ts32,
    151 		    sizeof ts32)) != 0)
    152 			return error;
    153 		netbsd32_to_timespec(&ts32, &ts);
    154 
    155 		sg = stackgap_init(l->l_proc, sizeof(ts));
    156 		tsp = (struct timespec *)stackgap_alloc(l->l_proc, &sg,
    157 		    sizeof(ts));
    158 		if ((error = copyout(&ts, tsp, sizeof(ts))) != 0)
    159 			return error;
    160 	}
    161 
    162 	/*
    163 	 * sys__lwp_park() ignores the ucontext_t argument, so we won't be
    164 	 * doing anything to it for now.  While that situation could change,
    165 	 * there's still a good chance it will only be considered as an
    166 	 * opaque value.
    167 	 */
    168 
    169 	SCARG(&ua, ts) = tsp;
    170 	NETBSD32TOP_UAP(ucp, ucontext_t);
    171 	NETBSD32TOP_UAP(hint, void);
    172 	return sys__lwp_park(l, &ua, retval);
    173 }
    174 
    175 int
    176 netbsd32__lwp_kill(struct lwp *l, void *v, register_t *retval)
    177 {
    178 	struct netbsd32__lwp_kill_args /* {
    179 		syscallarg(lwpid_t) target;
    180 		syscallarg(int) signo;
    181 	} */ *uap = v;
    182 	struct sys__lwp_kill_args ua;
    183 
    184 	NETBSD32TO64_UAP(target);
    185 	NETBSD32TO64_UAP(signo);
    186 	return sys__lwp_kill(l, &ua, retval);
    187 }
    188 int
    189 netbsd32__lwp_detach(struct lwp *l, void *v, register_t *retval)
    190 {
    191 	struct netbsd32__lwp_detach_args /* {
    192 		syscallarg(lwpid_t) target;
    193 	} */ *uap = v;
    194 	struct sys__lwp_detach_args ua;
    195 
    196 	NETBSD32TO64_UAP(target);
    197 	return sys__lwp_detach(l, &ua, retval);
    198 }
    199 
    200 int
    201 netbsd32__lwp_unpark(struct lwp *l, void *v, register_t *retval)
    202 {
    203 	struct netbsd32__lwp_unpark_args /* {
    204 		syscallarg(lwpid_t) target;
    205 		syscallarg(netbsd32_voidp) hint;
    206 	} */ *uap = v;
    207 	struct sys__lwp_unpark_args ua;
    208 
    209 	NETBSD32TO64_UAP(target);
    210 	NETBSD32TOP_UAP(hint, void);
    211 	return sys__lwp_unpark(l, &ua, retval);
    212 }
    213 
    214 int
    215 netbsd32__lwp_unpark_all(struct lwp *l, void *v, register_t *retval)
    216 {
    217 	struct netbsd32__lwp_unpark_all_args /* {
    218 		syscallarg(const netbsd32_lwpidp) targets;
    219 		syscallarg(netbsd32_size_t) ntargets;
    220 		syscallarg(netbsd32_voidp) hint;
    221 	} */ *uap = v;
    222 	struct sys__lwp_unpark_all_args ua;
    223 
    224 	NETBSD32TOP_UAP(targets, const lwpid_t);
    225 	NETBSD32TOX_UAP(ntargets, size_t);
    226 	NETBSD32TOP_UAP(hint, void);
    227 	return sys__lwp_unpark_all(l, &ua, retval);
    228 }
    229 
    230 int
    231 netbsd32__lwp_setname(struct lwp *l, void *v, register_t *retval)
    232 {
    233 	struct netbsd32__lwp_setname_args /* {
    234 		syscallarg(lwpid_t) target;
    235 		syscallarg(const netbsd32_charp) name;
    236 	} */ *uap = v;
    237 	struct sys__lwp_setname_args ua;
    238 
    239 	NETBSD32TO64_UAP(target);
    240 	NETBSD32TOP_UAP(name, char *);
    241 	return sys__lwp_setname(l, &ua, retval);
    242 }
    243 
    244 int
    245 netbsd32__lwp_getname(struct lwp *l, void *v, register_t *retval)
    246 {
    247 	struct netbsd32__lwp_getname_args /* {
    248 		syscallarg(lwpid_t) target;
    249 		syscallarg(netbsd32_charp) name;
    250 		syscallarg(netbsd32_size_t) len;
    251 	} */ *uap = v;
    252 	struct sys__lwp_getname_args ua;
    253 
    254 	NETBSD32TO64_UAP(target);
    255 	NETBSD32TOP_UAP(name, char *);
    256 	NETBSD32TOX_UAP(len, size_t);
    257 	return sys__lwp_getname(l, &ua, retval);
    258 }
    259 
    260 int
    261 netbsd32__lwp_ctl(struct lwp *l, void *v, register_t *retval)
    262 {
    263 	struct netbsd32__lwp_ctl_args /* {
    264 		syscallarg(int) features;
    265 		syscallarg(netbsd32_pointer_t) address;
    266 	} */ *uap = v;
    267 	struct sys__lwp_ctl_args ua;
    268 
    269 	NETBSD32TO64_UAP(features);
    270 	NETBSD32TOP_UAP(address, struct lwpctl *);
    271 	return sys__lwp_ctl(l, &ua, retval);
    272 }
    273