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      1 /*	$NetBSD: linux32_sched.c,v 1.10 2026/09/20 13:43:51 riastradh 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_sched.c,v 1.10 2026/09/20 13:43:51 riastradh 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_sched.h>
     63 #include <compat/linux/common/linux_ipc.h>
     64 #include <compat/linux/common/linux_sem.h>
     65 #include <compat/linux/linux_syscallargs.h>
     66 
     67 #include <compat/linux32/common/linux32_types.h>
     68 #include <compat/linux32/common/linux32_signal.h>
     69 #include <compat/linux32/common/linux32_machdep.h>
     70 #include <compat/linux32/common/linux32_sysctl.h>
     71 #include <compat/linux32/common/linux32_socketcall.h>
     72 #include <compat/linux32/linux32_syscallargs.h>
     73 
     74 int
     75 linux32_sys_clone(struct lwp *l, const struct linux32_sys_clone_args *uap, register_t *retval)
     76 {
     77 	/* {
     78 		syscallarg(int) flags;
     79 		syscallarg(netbsd32_voidp) stack;
     80 		syscallarg(netbsd32_voidp) parent_tidptr;
     81 		syscallarg(netbsd32_voidp) tls;
     82 		syscallarg(netbsd32_voidp) child_tidptr;
     83 	} */
     84 	struct linux_sys_clone_args ua;
     85 
     86 	memset(&ua, 0, sizeof(ua));
     87 	NETBSD32TO64_UAP(flags);
     88 	NETBSD32TOP_UAP(stack, void *);
     89 	NETBSD32TOP_UAP(parent_tidptr, void *);
     90 	NETBSD32TOP_UAP(tls, void *);
     91 	NETBSD32TOP_UAP(child_tidptr, void *);
     92 	return linux_sys_clone(l, &ua, retval);
     93 }
     94 
     95 int
     96 linux32_sys_sched_getscheduler(struct lwp *l, const struct linux32_sys_sched_getscheduler_args *uap, register_t *retval)
     97 {
     98 	/* {
     99 		syscallarg(pid_t) pid;
    100 	} */
    101 	struct linux_sys_sched_getscheduler_args ua;
    102 
    103 	memset(&ua, 0, sizeof(ua));
    104 	NETBSD32TO64_UAP(pid);
    105 	return linux_sys_sched_getscheduler(l, &ua, retval);
    106 }
    107 
    108 int
    109 linux32_sys_sched_setscheduler(struct lwp *l, const struct linux32_sys_sched_setscheduler_args *uap, register_t *retval)
    110 {
    111 	/* {
    112 		syscallarg(int) pid;
    113 		syscallarg(int) policy;
    114 		syscallarg(const linux32_sched_paramp_t) sp;
    115 	} */
    116 	struct linux_sys_sched_setscheduler_args ua;
    117 
    118 	memset(&ua, 0, sizeof(ua));
    119 	NETBSD32TO64_UAP(pid);
    120 	NETBSD32TO64_UAP(policy);
    121 	NETBSD32TOP_UAP(sp, const struct linux_sched_param);
    122 	return linux_sys_sched_setscheduler(l, &ua, retval);
    123 }
    124 
    125 int
    126 linux32_sys_sched_getparam(struct lwp *l, const struct linux32_sys_sched_getparam_args *uap, register_t *retval)
    127 {
    128 	/* {
    129 		syscallarg(pid_t) pid;
    130 		syscallarg(linux32_sched_paramp_t) sp;
    131 	} */
    132 	struct linux_sys_sched_getparam_args ua;
    133 
    134 	memset(&ua, 0, sizeof(ua));
    135 	NETBSD32TO64_UAP(pid);
    136 	NETBSD32TOP_UAP(sp, struct linux_sched_param);
    137 	return linux_sys_sched_getparam(l, &ua, retval);
    138 }
    139 
    140 int
    141 linux32_sys_sched_setparam(struct lwp *l, const struct linux32_sys_sched_setparam_args *uap, register_t *retval)
    142 {
    143 	/* {
    144 		syscallarg(pid_t) pid;
    145 		syscallarg(const linux32_sched_paramp_t) sp;
    146 	} */
    147 	struct linux_sys_sched_setparam_args ua;
    148 
    149 	memset(&ua, 0, sizeof(ua));
    150 	NETBSD32TO64_UAP(pid);
    151 	NETBSD32TOP_UAP(sp, const struct linux_sched_param);
    152 	return linux_sys_sched_setparam(l, &ua, retval);
    153 }
    154 
    155 int
    156 linux32_sys_exit_group(struct lwp *l, const struct linux32_sys_exit_group_args *uap, register_t *retval)
    157 {
    158 	/* {
    159 		syscallarg(int) error_code;
    160 	} */
    161 	struct linux_sys_exit_group_args ua;
    162 
    163 	memset(&ua, 0, sizeof(ua));
    164 	NETBSD32TO64_UAP(error_code);
    165 	return linux_sys_exit_group(l, &ua, retval);
    166 }
    167 
    168 int
    169 linux32_sys_exit(struct lwp *l, const struct linux32_sys_exit_args *uap, register_t *retval)
    170 {
    171 
    172 	/* {
    173 		syscallarg(int) rval;
    174 	} */
    175 	struct linux_sys_exit_args ua;
    176 
    177 	memset(&ua, 0, sizeof(ua));
    178 	NETBSD32TO64_UAP(rval);
    179 	return linux_sys_exit(l, &ua, retval);
    180 }
    181 
    182 int
    183 linux32_sys_sched_get_priority_max(struct lwp *l, const struct linux32_sys_sched_get_priority_max_args *uap, register_t *retval)
    184 {
    185 	/* {
    186 		syscallarg(int) policy;
    187 	} */
    188 
    189 	struct linux_sys_sched_get_priority_max_args ua;
    190 
    191 	memset(&ua, 0, sizeof(ua));
    192 	NETBSD32TO64_UAP(policy);
    193 	return linux_sys_sched_get_priority_max(l, &ua, retval);
    194 }
    195 
    196 int
    197 linux32_sys_sched_get_priority_min(struct lwp *l, const struct linux32_sys_sched_get_priority_min_args *uap, register_t *retval)
    198 {
    199 	/* {
    200 		syscallarg(int) policy;
    201 	} */
    202 
    203 	struct linux_sys_sched_get_priority_min_args ua;
    204 
    205 	memset(&ua, 0, sizeof(ua));
    206 	NETBSD32TO64_UAP(policy);
    207 	return linux_sys_sched_get_priority_min(l, &ua, retval);
    208 }
    209 
    210 
    211 int
    212 linux32_sys_set_tid_address(struct lwp *l, const struct linux32_sys_set_tid_address_args *uap, register_t *retval)
    213 {
    214 	/* {
    215 		syscallarg(linux32_intp_t) tid;
    216 	} */
    217 	struct linux_sys_set_tid_address_args ua;
    218 
    219 	memset(&ua, 0, sizeof(ua));
    220 	NETBSD32TOP_UAP(tid, int);
    221 	return linux_sys_set_tid_address(l, &ua, retval);
    222 }
    223 
    224 int
    225 linux32_sys_sched_getaffinity(struct lwp *l, const struct linux32_sys_sched_getaffinity_args *uap, register_t *retval)
    226 {
    227 	/* {
    228 		syscallarg(linux_pid_t) pid;
    229 		syscallarg(unsigned int) len;
    230 		syscallarg(linux32_longp_t) mask;
    231 	} */
    232 	struct linux_sys_sched_getaffinity_args ua;
    233 
    234 	memset(&ua, 0, sizeof(ua));
    235 	NETBSD32TO64_UAP(pid);
    236 	NETBSD32TO64_UAP(len);
    237 	NETBSD32TOP_UAP(mask, long);
    238 	return linux_sys_sched_getaffinity(l, &ua, retval);
    239 }
    240 
    241 int
    242 linux32_sys_sched_setaffinity(struct lwp *l, const struct linux32_sys_sched_setaffinity_args *uap, register_t *retval)
    243 {
    244 	/* {
    245 		syscallarg(linux_pid_t) pid;
    246 		syscallarg(unsigned int) len;
    247 		syscallarg(linux32_longp_t) mask;
    248 	} */
    249 	struct linux_sys_sched_setaffinity_args ua;
    250 
    251 	memset(&ua, 0, sizeof(ua));
    252 	NETBSD32TO64_UAP(pid);
    253 	NETBSD32TO64_UAP(len);
    254 	NETBSD32TOP_UAP(mask, long);
    255 	return linux_sys_sched_setaffinity(l, &ua, retval);
    256 }
    257 
    258 int
    259 linux32_sys_tkill(struct lwp *l, const struct linux32_sys_tkill_args *uap, register_t *retval)
    260 {
    261 	/* {
    262 		syscallarg(int) tid;
    263 		syscallarg(int) sig;
    264 	} */
    265 	struct linux_sys_tkill_args ua;
    266 
    267 	memset(&ua, 0, sizeof(ua));
    268 	NETBSD32TO64_UAP(tid);
    269 	NETBSD32TO64_UAP(sig);
    270 	return linux_sys_tkill(l, &ua, retval);
    271 }
    272 
    273 int
    274 linux32_sys_tgkill(struct lwp *l, const struct linux32_sys_tgkill_args *uap, register_t *retval)
    275 {
    276 	/* {
    277 		syscallarg(int) tgid;
    278 		syscallarg(int) tid;
    279 		syscallarg(int) sig;
    280 	} */
    281 	struct linux_sys_tgkill_args ua;
    282 
    283 	memset(&ua, 0, sizeof(ua));
    284 	NETBSD32TO64_UAP(tgid);
    285 	NETBSD32TO64_UAP(tid);
    286 	NETBSD32TO64_UAP(sig);
    287 	return linux_sys_tgkill(l, &ua, retval);
    288 }
    289