sys/compat/svr4/svr4_lwp.c

   1 /*      $NetBSD: svr4_lwp.c,v 1.18 2008/04/28 20:23:45 martin Exp $     */
   2
   3 /*-
   4  * Copyright (c) 1999 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Christos Zoulas.
   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  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include <sys/cdefs.h>
  33 __KERNEL_RCSID(0, "$NetBSD: svr4_lwp.c,v 1.18 2008/04/28 20:23:45 martin Exp $");
  34
  35 #include <sys/param.h>
  36 #include <sys/kernel.h>
  37 #include <sys/systm.h>
  38 #include <sys/queue.h>
  39 #include <sys/mbuf.h>
  40 #include <sys/file.h>
  41 #include <sys/mount.h>
  42 #include <sys/time.h>
  43 #include <sys/resourcevar.h>
  44 #include <sys/proc.h>
  45 #include <sys/socket.h>
  46 #include <sys/socketvar.h>
  47 #include <sys/syscallargs.h>
  48 #include <sys/un.h>
  49 #include <sys/stat.h>
  50
  51 #include <compat/svr4/svr4_types.h>
  52 #include <compat/svr4/svr4_util.h>
  53 #include <compat/svr4/svr4_socket.h>
  54 #include <compat/svr4/svr4_signal.h>
  55 #include <compat/svr4/svr4_sockmod.h>
  56 #include <compat/svr4/svr4_lwp.h>
  57 #include <compat/svr4/svr4_ucontext.h>
  58 #include <compat/svr4/svr4_syscallargs.h>
  59
  60
  61 int
  62 svr4_sys__lwp_self(struct lwp *l, const void *uap, register_t *retval)
  63 {
  64         return sys__lwp_self(l, uap, retval);
  65 }
  66
  67 int
  68 svr4_sys__lwp_create(struct lwp *l, const struct svr4_sys__lwp_create_args *uap, register_t *retval)
  69 {
  70         struct sys__lwp_create_args lc;
  71         int flags;
  72
  73         flags = 0;
  74
  75         if (SCARG(uap, flags) & SVR4_LWP_DETACHED)
  76             flags  &= LWP_DETACHED;
  77
  78         if (SCARG(uap, flags) & SVR4_LWP_SUSPENDED)
  79             flags  &= LWP_SUSPENDED;
  80
  81         if (SCARG(uap, flags) & SVR4___LWP_ASLWP) {
  82                 /* XXX Punt! */
  83         }
  84
  85
  86         /* XXX At the moment, svr4_ucontext_t and ucontext_t are the same */
  87         SCARG(&lc, ucp) = (ucontext_t *)SCARG(uap, uc);
  88         SCARG(&lc, flags) = flags;
  89         SCARG(&lc, new_lwp) = (lwpid_t *)SCARG(uap, lwpid);
  90
  91
  92         return sys__lwp_create(l, &lc, retval);
  93 }
  94
  95 int
  96 svr4_sys__lwp_kill(struct lwp *l, const struct svr4_sys__lwp_kill_args *uap, register_t *retval)
  97 {
  98         struct sys__lwp_kill_args ap;
  99         SCARG(&ap, target) = SCARG(uap, lwpid);
 100         SCARG(&ap, signo) = SCARG(uap, signum);
 101
 102         return sys__lwp_kill(l, &ap, retval);
 103 }
 104
 105 int
 106 svr4_sys__lwp_info(struct lwp *l, const struct svr4_sys__lwp_info_args *uap, register_t *retval)
 107 {
 108         struct svr4_lwpinfo lwpinfo;
 109         int error;
 110
 111         /* XXX NJWLWP */
 112         TIMEVAL_TO_TIMESPEC(&l->l_proc->p_stats->p_ru.ru_stime, &lwpinfo.lwp_stime);
 113         TIMEVAL_TO_TIMESPEC(&l->l_proc->p_stats->p_ru.ru_utime, &lwpinfo.lwp_utime);
 114
 115         if ((error = copyout(&lwpinfo, SCARG(uap, lwpinfo), sizeof(lwpinfo))) ==
 116             -1)
 117                return error;
 118         return 0;
 119 }
 120
 121 int
 122 svr4_sys__lwp_exit(struct lwp *l, const void *v, register_t *retval)
 123 {
 124
 125         return sys__lwp_exit(l, NULL, retval);
 126 }
 127
 128 int
 129 svr4_sys__lwp_wait(struct lwp *l, const struct svr4_sys__lwp_wait_args *uap, register_t *retval)
 130 {
 131         struct sys__lwp_wait_args ap;
 132
 133         SCARG(&ap, wait_for) = SCARG(uap, wait_for);
 134         SCARG(&ap, departed) = (lwpid_t *)SCARG(uap, departed_lwp);
 135
 136         return sys__lwp_wait(l, &ap, retval);
 137 }
 138
 139 int
 140 svr4_sys__lwp_suspend(struct lwp *l, const struct svr4_sys__lwp_suspend_args *uap, register_t *retval)
 141 {
 142         struct sys__lwp_suspend_args ap;
 143
 144         SCARG(&ap, target) = SCARG(uap, lwpid);
 145
 146         return sys__lwp_suspend(l, &ap, retval);
 147 }
 148
 149
 150 int
 151 svr4_sys__lwp_continue(struct lwp *l, const struct svr4_sys__lwp_continue_args *uap, register_t *retval)
 152 {
 153         struct sys__lwp_continue_args ap;
 154
 155         SCARG(&ap, target) = SCARG(uap, lwpid);
 156
 157         return sys__lwp_continue(l, &ap, retval);
 158 }
 159
 160 int
 161 svr4_sys__lwp_getprivate(struct lwp *l, const void *v, register_t *retval)
 162 {
 163         /* XXX NJWLWP: Replace with call to native version if we ever
 164          * implement that. */
 165
 166         *retval = (register_t)l->l_private;
 167         return 0;
 168 }
 169
 170 int
 171 svr4_sys__lwp_setprivate(struct lwp *l, const struct svr4_sys__lwp_setprivate_args *uap, register_t *retval)
 172 {
 173
 174         /* XXX NJWLWP: Replace with call to native version if we ever
 175          * implement that. */
 176
 177         return copyin(SCARG(uap, buffer), &l->l_private, sizeof(void *));
 178 }