1 /* $NetBSD: netbsd32_lwp.c,v 1.23 2021/01/14 02:51:52 simonb 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 1.23 2021/01/14 02:51:52 simonb 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 NETBSD32TO64_UAP(wait_for); 107 NETBSD32TOP_UAP(departed, lwpid_t); 108 return sys__lwp_wait(l, &ua, retval); 109 } 110 111 int 112 netbsd32__lwp_suspend(struct lwp *l, const struct netbsd32__lwp_suspend_args *uap, register_t *retval) 113 { 114 /* { 115 syscallarg(lwpid_t) target; 116 } */ 117 struct sys__lwp_suspend_args ua; 118 119 NETBSD32TO64_UAP(target); 120 return sys__lwp_suspend(l, &ua, retval); 121 } 122 123 int 124 netbsd32__lwp_continue(struct lwp *l, const struct netbsd32__lwp_continue_args *uap, register_t *retval) 125 { 126 /* { 127 syscallarg(lwpid_t) target; 128 } */ 129 struct sys__lwp_continue_args ua; 130 131 NETBSD32TO64_UAP(target); 132 return sys__lwp_continue(l, &ua, retval); 133 } 134 135 int 136 netbsd32__lwp_wakeup(struct lwp *l, const struct netbsd32__lwp_wakeup_args *uap, register_t *retval) 137 { 138 /* { 139 syscallarg(lwpid_t) target; 140 } */ 141 struct sys__lwp_wakeup_args ua; 142 143 NETBSD32TO64_UAP(target); 144 return sys__lwp_wakeup(l, &ua, retval); 145 } 146 147 int 148 netbsd32__lwp_setprivate(struct lwp *l, const struct netbsd32__lwp_setprivate_args *uap, register_t *retval) 149 { 150 /* { 151 syscallarg(netbsd32_voidp) ptr; 152 } */ 153 struct sys__lwp_setprivate_args ua; 154 155 NETBSD32TOP_UAP(ptr, void); 156 return sys__lwp_setprivate(l, &ua, retval); 157 } 158 159 int 160 netbsd32____lwp_park60(struct lwp *l, 161 const struct netbsd32____lwp_park60_args *uap, register_t *retval) 162 { 163 /* { 164 syscallarg(const netbsd32_clockid_t) clock_id; 165 syscallarg(int) flags; 166 syscallarg(const netbsd32_timespec50p) ts; 167 syscallarg(netbsd32_lwpid_t) unpark; 168 syscallarg(netbsd32_voidp) hint; 169 syscallarg(netbsd32_voidp) unparkhint; 170 } */ 171 struct timespec ts, *tsp; 172 struct netbsd32_timespec ts32; 173 int ret; 174 int error; 175 176 if (SCARG_P32(uap, ts) == NULL) 177 tsp = NULL; 178 else { 179 error = copyin(SCARG_P32(uap, ts), &ts32, sizeof ts32); 180 if (error != 0) 181 return error; 182 netbsd32_to_timespec(&ts32, &ts); 183 tsp = &ts; 184 } 185 186 if (SCARG(uap, unpark) != 0) { 187 error = lwp_unpark(&SCARG(uap, unpark), 1); 188 if (error != 0) 189 return error; 190 } 191 192 ret = lwp_park(SCARG(uap, clock_id), SCARG(uap, flags), tsp); 193 if (SCARG_P32(uap, ts) != NULL && (SCARG(uap, flags) & TIMER_ABSTIME) == 0) { 194 netbsd32_from_timespec(&ts, &ts32); 195 (void)copyout(&ts32, SCARG_P32(uap, ts), sizeof(ts32)); 196 } 197 return ret; 198 } 199 200 int 201 netbsd32__lwp_kill(struct lwp *l, const struct netbsd32__lwp_kill_args *uap, register_t *retval) 202 { 203 /* { 204 syscallarg(lwpid_t) target; 205 syscallarg(int) signo; 206 } */ 207 struct sys__lwp_kill_args ua; 208 209 NETBSD32TO64_UAP(target); 210 NETBSD32TO64_UAP(signo); 211 return sys__lwp_kill(l, &ua, retval); 212 } 213 int 214 netbsd32__lwp_detach(struct lwp *l, const struct netbsd32__lwp_detach_args *uap, register_t *retval) 215 { 216 /* { 217 syscallarg(lwpid_t) target; 218 } */ 219 struct sys__lwp_detach_args ua; 220 221 NETBSD32TO64_UAP(target); 222 return sys__lwp_detach(l, &ua, retval); 223 } 224 225 int 226 netbsd32__lwp_unpark(struct lwp *l, const struct netbsd32__lwp_unpark_args *uap, register_t *retval) 227 { 228 /* { 229 syscallarg(lwpid_t) target; 230 syscallarg(netbsd32_voidp) hint; 231 } */ 232 struct sys__lwp_unpark_args ua; 233 234 NETBSD32TO64_UAP(target); 235 NETBSD32TOP_UAP(hint, void); 236 return sys__lwp_unpark(l, &ua, retval); 237 } 238 239 int 240 netbsd32__lwp_unpark_all(struct lwp *l, const struct netbsd32__lwp_unpark_all_args *uap, register_t *retval) 241 { 242 /* { 243 syscallarg(const netbsd32_lwpidp) targets; 244 syscallarg(netbsd32_size_t) ntargets; 245 syscallarg(netbsd32_voidp) hint; 246 } */ 247 struct sys__lwp_unpark_all_args ua; 248 249 NETBSD32TOP_UAP(targets, const lwpid_t); 250 NETBSD32TOX_UAP(ntargets, size_t); 251 NETBSD32TOP_UAP(hint, void); 252 return sys__lwp_unpark_all(l, &ua, retval); 253 } 254 255 int 256 netbsd32__lwp_setname(struct lwp *l, const struct netbsd32__lwp_setname_args *uap, register_t *retval) 257 { 258 /* { 259 syscallarg(lwpid_t) target; 260 syscallarg(const netbsd32_charp) name; 261 } */ 262 struct sys__lwp_setname_args ua; 263 264 NETBSD32TO64_UAP(target); 265 NETBSD32TOP_UAP(name, char *); 266 return sys__lwp_setname(l, &ua, retval); 267 } 268 269 int 270 netbsd32__lwp_getname(struct lwp *l, const struct netbsd32__lwp_getname_args *uap, register_t *retval) 271 { 272 /* { 273 syscallarg(lwpid_t) target; 274 syscallarg(netbsd32_charp) name; 275 syscallarg(netbsd32_size_t) len; 276 } */ 277 struct sys__lwp_getname_args ua; 278 279 NETBSD32TO64_UAP(target); 280 NETBSD32TOP_UAP(name, char *); 281 NETBSD32TOX_UAP(len, size_t); 282 return sys__lwp_getname(l, &ua, retval); 283 } 284 285 int 286 netbsd32__lwp_ctl(struct lwp *l, const struct netbsd32__lwp_ctl_args *uap, register_t *retval) 287 { 288 /* { 289 syscallarg(int) features; 290 syscallarg(netbsd32_pointer_t) address; 291 } */ 292 netbsd32_pointer_t vaddr32; 293 int error, features; 294 vaddr_t vaddr; 295 296 features = SCARG(uap, features); 297 features &= ~(LWPCTL_FEATURE_CURCPU | LWPCTL_FEATURE_PCTR); 298 if (features != 0) 299 return ENODEV; 300 if ((error = lwp_ctl_alloc(&vaddr)) != 0) 301 return error; 302 NETBSD32PTR32(vaddr32, (void *)vaddr); 303 return copyout(&vaddr32, SCARG_P32(uap, address), sizeof(vaddr32)); 304 } 305
Indexes created Sat Sep 20 22:09:52 GMT 2025