netbsd32_lwp.c revision 1.21
1 /* $NetBSD: netbsd32_lwp.c,v 1.21 2020/01/26 19:08:09 ad 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 1.21 2020/01/26 19:08:09 ad 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 error; 174 175 if (SCARG_P32(uap, ts) == NULL) 176 tsp = NULL; 177 else { 178 error = copyin(SCARG_P32(uap, ts), &ts32, sizeof ts32); 179 if (error != 0) 180 return error; 181 netbsd32_to_timespec(&ts32, &ts); 182 tsp = &ts; 183 } 184 185 if (SCARG(uap, unpark) != 0) { 186 error = lwp_unpark(SCARG(uap, unpark), 187 SCARG_P32(uap, unparkhint)); 188 if (error != 0) 189 return error; 190 } 191 192 return lwp_park(SCARG(uap, clock_id), SCARG(uap, flags), tsp, 193 SCARG_P32(uap, hint)); 194 } 195 196 int 197 netbsd32__lwp_kill(struct lwp *l, const struct netbsd32__lwp_kill_args *uap, register_t *retval) 198 { 199 /* { 200 syscallarg(lwpid_t) target; 201 syscallarg(int) signo; 202 } */ 203 struct sys__lwp_kill_args ua; 204 205 NETBSD32TO64_UAP(target); 206 NETBSD32TO64_UAP(signo); 207 return sys__lwp_kill(l, &ua, retval); 208 } 209 int 210 netbsd32__lwp_detach(struct lwp *l, const struct netbsd32__lwp_detach_args *uap, register_t *retval) 211 { 212 /* { 213 syscallarg(lwpid_t) target; 214 } */ 215 struct sys__lwp_detach_args ua; 216 217 NETBSD32TO64_UAP(target); 218 return sys__lwp_detach(l, &ua, retval); 219 } 220 221 int 222 netbsd32__lwp_unpark(struct lwp *l, const struct netbsd32__lwp_unpark_args *uap, register_t *retval) 223 { 224 /* { 225 syscallarg(lwpid_t) target; 226 syscallarg(netbsd32_voidp) hint; 227 } */ 228 struct sys__lwp_unpark_args ua; 229 230 NETBSD32TO64_UAP(target); 231 NETBSD32TOP_UAP(hint, void); 232 return sys__lwp_unpark(l, &ua, retval); 233 } 234 235 int 236 netbsd32__lwp_unpark_all(struct lwp *l, const struct netbsd32__lwp_unpark_all_args *uap, register_t *retval) 237 { 238 /* { 239 syscallarg(const netbsd32_lwpidp) targets; 240 syscallarg(netbsd32_size_t) ntargets; 241 syscallarg(netbsd32_voidp) hint; 242 } */ 243 struct sys__lwp_unpark_all_args ua; 244 245 NETBSD32TOP_UAP(targets, const lwpid_t); 246 NETBSD32TOX_UAP(ntargets, size_t); 247 NETBSD32TOP_UAP(hint, void); 248 return sys__lwp_unpark_all(l, &ua, retval); 249 } 250 251 int 252 netbsd32__lwp_setname(struct lwp *l, const struct netbsd32__lwp_setname_args *uap, register_t *retval) 253 { 254 /* { 255 syscallarg(lwpid_t) target; 256 syscallarg(const netbsd32_charp) name; 257 } */ 258 struct sys__lwp_setname_args ua; 259 260 NETBSD32TO64_UAP(target); 261 NETBSD32TOP_UAP(name, char *); 262 return sys__lwp_setname(l, &ua, retval); 263 } 264 265 int 266 netbsd32__lwp_getname(struct lwp *l, const struct netbsd32__lwp_getname_args *uap, register_t *retval) 267 { 268 /* { 269 syscallarg(lwpid_t) target; 270 syscallarg(netbsd32_charp) name; 271 syscallarg(netbsd32_size_t) len; 272 } */ 273 struct sys__lwp_getname_args ua; 274 275 NETBSD32TO64_UAP(target); 276 NETBSD32TOP_UAP(name, char *); 277 NETBSD32TOX_UAP(len, size_t); 278 return sys__lwp_getname(l, &ua, retval); 279 } 280 281 int 282 netbsd32__lwp_ctl(struct lwp *l, const struct netbsd32__lwp_ctl_args *uap, register_t *retval) 283 { 284 /* { 285 syscallarg(int) features; 286 syscallarg(netbsd32_pointer_t) address; 287 } */ 288 netbsd32_pointer_t vaddr32; 289 int error, features; 290 vaddr_t vaddr; 291 292 features = SCARG(uap, features); 293 features &= ~(LWPCTL_FEATURE_CURCPU | LWPCTL_FEATURE_PCTR); 294 if (features != 0) 295 return ENODEV; 296 if ((error = lwp_ctl_alloc(&vaddr)) != 0) 297 return error; 298 NETBSD32PTR32(vaddr32, (void *)vaddr); 299 return copyout(&vaddr32, SCARG_P32(uap, address), sizeof(vaddr32)); 300 } 301
Indexes created Sun Sep 21 19:09:51 GMT 2025