1 /* $NetBSD: netbsd32_lwp.c,v 1.24 2026/09/20 13:45:00 riastradh Exp $ */ 2 3 /* 4 * Copyright (c) 2005, 2006, 2007, 2020 The NetBSD Foundation. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: netbsd32_lwp.c,v 1.24 2026/09/20 13:45:00 riastradh Exp $"); 31 32 #include <sys/types.h> 33 #include <sys/param.h> 34 #include <sys/systm.h> 35 #include <sys/kernel.h> 36 #include <sys/dirent.h> 37 #include <sys/mount.h> 38 #include <sys/proc.h> 39 #include <sys/syscallargs.h> 40 #include <sys/lwpctl.h> 41 42 #include <compat/netbsd32/netbsd32.h> 43 #include <compat/netbsd32/netbsd32_syscallargs.h> 44 #include <compat/netbsd32/netbsd32_conv.h> 45 46 /* Sycalls conversion */ 47 48 int 49 netbsd32__lwp_create(struct lwp *l, const struct netbsd32__lwp_create_args *uap, register_t *retval) 50 { 51 /* { 52 syscallarg(const netbsd32_ucontextp) ucp; 53 syscallarg(netbsd32_u_long) flags; 54 syscallarg(netbsd32_lwpidp) new_lwp; 55 } */ 56 struct proc *p = l->l_proc; 57 ucontext32_t *newuc = NULL; 58 lwp_t *l2; 59 int error; 60 61 KASSERT(p->p_emul->e_ucsize == sizeof(*newuc)); 62 63 newuc = kmem_alloc(sizeof(ucontext_t), KM_SLEEP); 64 error = copyin(SCARG_P32(uap, ucp), newuc, p->p_emul->e_ucsize); 65 if (error) 66 goto fail; 67 68 /* validate the ucontext */ 69 if ((newuc->uc_flags & _UC_CPU) == 0) { 70 error = EINVAL; 71 goto fail; 72 } 73 error = cpu_mcontext32_validate(l, &newuc->uc_mcontext); 74 if (error) 75 goto fail; 76 77 const sigset_t *sigmask = newuc->uc_flags & _UC_SIGMASK ? 78 &newuc->uc_sigmask : &l->l_sigmask; 79 80 error = do_lwp_create(l, newuc, SCARG(uap, flags), &l2, sigmask, 81 &SS_INIT); 82 if (error != 0) 83 goto fail; 84 85 error = copyout(&l2->l_lid, SCARG_P32(uap, new_lwp), 86 sizeof(l2->l_lid)); 87 if (error == 0) { 88 lwp_start(l2, SCARG(uap, flags)); 89 return 0; 90 } 91 lwp_exit(l2); 92 fail: 93 kmem_free(newuc, sizeof(ucontext_t)); 94 return error; 95 } 96 97 int 98 netbsd32__lwp_wait(struct lwp *l, const struct netbsd32__lwp_wait_args *uap, register_t *retval) 99 { 100 /* { 101 syscallarg(lwpid_t) wait_for; 102 syscallarg(netbsd32_lwpidp) departed; 103 } */ 104 struct sys__lwp_wait_args ua; 105 106 memset(&ua, 0, sizeof(ua)); 107 NETBSD32TO64_UAP(wait_for); 108 NETBSD32TOP_UAP(departed, lwpid_t); 109 return sys__lwp_wait(l, &ua, retval); 110 } 111 112 int 113 netbsd32__lwp_suspend(struct lwp *l, const struct netbsd32__lwp_suspend_args *uap, register_t *retval) 114 { 115 /* { 116 syscallarg(lwpid_t) target; 117 } */ 118 struct sys__lwp_suspend_args ua; 119 120 memset(&ua, 0, sizeof(ua)); 121 NETBSD32TO64_UAP(target); 122 return sys__lwp_suspend(l, &ua, retval); 123 } 124 125 int 126 netbsd32__lwp_continue(struct lwp *l, const struct netbsd32__lwp_continue_args *uap, register_t *retval) 127 { 128 /* { 129 syscallarg(lwpid_t) target; 130 } */ 131 struct sys__lwp_continue_args ua; 132 133 memset(&ua, 0, sizeof(ua)); 134 NETBSD32TO64_UAP(target); 135 return sys__lwp_continue(l, &ua, retval); 136 } 137 138 int 139 netbsd32__lwp_wakeup(struct lwp *l, const struct netbsd32__lwp_wakeup_args *uap, register_t *retval) 140 { 141 /* { 142 syscallarg(lwpid_t) target; 143 } */ 144 struct sys__lwp_wakeup_args ua; 145 146 memset(&ua, 0, sizeof(ua)); 147 NETBSD32TO64_UAP(target); 148 return sys__lwp_wakeup(l, &ua, retval); 149 } 150 151 int 152 netbsd32__lwp_setprivate(struct lwp *l, const struct netbsd32__lwp_setprivate_args *uap, register_t *retval) 153 { 154 /* { 155 syscallarg(netbsd32_voidp) ptr; 156 } */ 157 struct sys__lwp_setprivate_args ua; 158 159 memset(&ua, 0, sizeof(ua)); 160 NETBSD32TOP_UAP(ptr, void); 161 return sys__lwp_setprivate(l, &ua, retval); 162 } 163 164 int 165 netbsd32____lwp_park60(struct lwp *l, 166 const struct netbsd32____lwp_park60_args *uap, register_t *retval) 167 { 168 /* { 169 syscallarg(const netbsd32_clockid_t) clock_id; 170 syscallarg(int) flags; 171 syscallarg(const netbsd32_timespec50p) ts; 172 syscallarg(netbsd32_lwpid_t) unpark; 173 syscallarg(netbsd32_voidp) hint; 174 syscallarg(netbsd32_voidp) unparkhint; 175 } */ 176 struct timespec ts, *tsp; 177 struct netbsd32_timespec ts32; 178 int ret; 179 int error; 180 181 if (SCARG_P32(uap, ts) == NULL) 182 tsp = NULL; 183 else { 184 error = copyin(SCARG_P32(uap, ts), &ts32, sizeof ts32); 185 if (error != 0) 186 return error; 187 netbsd32_to_timespec(&ts32, &ts); 188 tsp = &ts; 189 } 190 191 if (SCARG(uap, unpark) != 0) { 192 error = lwp_unpark(&SCARG(uap, unpark), 1); 193 if (error != 0) 194 return error; 195 } 196 197 ret = lwp_park(SCARG(uap, clock_id), SCARG(uap, flags), tsp); 198 if (SCARG_P32(uap, ts) != NULL && (SCARG(uap, flags) & TIMER_ABSTIME) == 0) { 199 netbsd32_from_timespec(&ts, &ts32); 200 (void)copyout(&ts32, SCARG_P32(uap, ts), sizeof(ts32)); 201 } 202 return ret; 203 } 204 205 int 206 netbsd32__lwp_kill(struct lwp *l, const struct netbsd32__lwp_kill_args *uap, register_t *retval) 207 { 208 /* { 209 syscallarg(lwpid_t) target; 210 syscallarg(int) signo; 211 } */ 212 struct sys__lwp_kill_args ua; 213 214 memset(&ua, 0, sizeof(ua)); 215 NETBSD32TO64_UAP(target); 216 NETBSD32TO64_UAP(signo); 217 return sys__lwp_kill(l, &ua, retval); 218 } 219 int 220 netbsd32__lwp_detach(struct lwp *l, const struct netbsd32__lwp_detach_args *uap, register_t *retval) 221 { 222 /* { 223 syscallarg(lwpid_t) target; 224 } */ 225 struct sys__lwp_detach_args ua; 226 227 memset(&ua, 0, sizeof(ua)); 228 NETBSD32TO64_UAP(target); 229 return sys__lwp_detach(l, &ua, retval); 230 } 231 232 int 233 netbsd32__lwp_unpark(struct lwp *l, const struct netbsd32__lwp_unpark_args *uap, register_t *retval) 234 { 235 /* { 236 syscallarg(lwpid_t) target; 237 syscallarg(netbsd32_voidp) hint; 238 } */ 239 struct sys__lwp_unpark_args ua; 240 241 memset(&ua, 0, sizeof(ua)); 242 NETBSD32TO64_UAP(target); 243 NETBSD32TOP_UAP(hint, void); 244 return sys__lwp_unpark(l, &ua, retval); 245 } 246 247 int 248 netbsd32__lwp_unpark_all(struct lwp *l, const struct netbsd32__lwp_unpark_all_args *uap, register_t *retval) 249 { 250 /* { 251 syscallarg(const netbsd32_lwpidp) targets; 252 syscallarg(netbsd32_size_t) ntargets; 253 syscallarg(netbsd32_voidp) hint; 254 } */ 255 struct sys__lwp_unpark_all_args ua; 256 257 memset(&ua, 0, sizeof(ua)); 258 NETBSD32TOP_UAP(targets, const lwpid_t); 259 NETBSD32TOX_UAP(ntargets, size_t); 260 NETBSD32TOP_UAP(hint, void); 261 return sys__lwp_unpark_all(l, &ua, retval); 262 } 263 264 int 265 netbsd32__lwp_setname(struct lwp *l, const struct netbsd32__lwp_setname_args *uap, register_t *retval) 266 { 267 /* { 268 syscallarg(lwpid_t) target; 269 syscallarg(const netbsd32_charp) name; 270 } */ 271 struct sys__lwp_setname_args ua; 272 273 memset(&ua, 0, sizeof(ua)); 274 NETBSD32TO64_UAP(target); 275 NETBSD32TOP_UAP(name, char *); 276 return sys__lwp_setname(l, &ua, retval); 277 } 278 279 int 280 netbsd32__lwp_getname(struct lwp *l, const struct netbsd32__lwp_getname_args *uap, register_t *retval) 281 { 282 /* { 283 syscallarg(lwpid_t) target; 284 syscallarg(netbsd32_charp) name; 285 syscallarg(netbsd32_size_t) len; 286 } */ 287 struct sys__lwp_getname_args ua; 288 289 memset(&ua, 0, sizeof(ua)); 290 NETBSD32TO64_UAP(target); 291 NETBSD32TOP_UAP(name, char *); 292 NETBSD32TOX_UAP(len, size_t); 293 return sys__lwp_getname(l, &ua, retval); 294 } 295 296 int 297 netbsd32__lwp_ctl(struct lwp *l, const struct netbsd32__lwp_ctl_args *uap, register_t *retval) 298 { 299 /* { 300 syscallarg(int) features; 301 syscallarg(netbsd32_pointer_t) address; 302 } */ 303 netbsd32_pointer_t vaddr32; 304 int error, features; 305 vaddr_t vaddr; 306 307 features = SCARG(uap, features); 308 features &= ~(LWPCTL_FEATURE_CURCPU | LWPCTL_FEATURE_PCTR); 309 if (features != 0) 310 return ENODEV; 311 if ((error = lwp_ctl_alloc(&vaddr)) != 0) 312 return error; 313 NETBSD32PTR32(vaddr32, (void *)vaddr); 314 return copyout(&vaddr32, SCARG_P32(uap, address), sizeof(vaddr32)); 315 } 316
Indexes created Mon Oct 05 00:25:34 UTC 2026