netbsd32_lwp.c revision 1.20
1 /* $NetBSD: netbsd32_lwp.c,v 1.20 2020/01/25 15:41:52 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 1.20 2020/01/25 15:41:52 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_exit(l2); 89 else 90 lwp_start(l2, SCARG(uap, flags)); 91 return error; 92 93 fail: 94 kmem_free(newuc, sizeof(ucontext_t)); 95 return error; 96 } 97 98 int 99 netbsd32__lwp_wait(struct lwp *l, const struct netbsd32__lwp_wait_args *uap, register_t *retval) 100 { 101 /* { 102 syscallarg(lwpid_t) wait_for; 103 syscallarg(netbsd32_lwpidp) departed; 104 } */ 105 struct sys__lwp_wait_args ua; 106 107 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 NETBSD32TO64_UAP(target); 121 return sys__lwp_suspend(l, &ua, retval); 122 } 123 124 int 125 netbsd32__lwp_continue(struct lwp *l, const struct netbsd32__lwp_continue_args *uap, register_t *retval) 126 { 127 /* { 128 syscallarg(lwpid_t) target; 129 } */ 130 struct sys__lwp_continue_args ua; 131 132 NETBSD32TO64_UAP(target); 133 return sys__lwp_continue(l, &ua, retval); 134 } 135 136 int 137 netbsd32__lwp_wakeup(struct lwp *l, const struct netbsd32__lwp_wakeup_args *uap, register_t *retval) 138 { 139 /* { 140 syscallarg(lwpid_t) target; 141 } */ 142 struct sys__lwp_wakeup_args ua; 143 144 NETBSD32TO64_UAP(target); 145 return sys__lwp_wakeup(l, &ua, retval); 146 } 147 148 int 149 netbsd32__lwp_setprivate(struct lwp *l, const struct netbsd32__lwp_setprivate_args *uap, register_t *retval) 150 { 151 /* { 152 syscallarg(netbsd32_voidp) ptr; 153 } */ 154 struct sys__lwp_setprivate_args ua; 155 156 NETBSD32TOP_UAP(ptr, void); 157 return sys__lwp_setprivate(l, &ua, retval); 158 } 159 160 int 161 netbsd32____lwp_park60(struct lwp *l, 162 const struct netbsd32____lwp_park60_args *uap, register_t *retval) 163 { 164 /* { 165 syscallarg(const netbsd32_clockid_t) clock_id; 166 syscallarg(int) flags; 167 syscallarg(const netbsd32_timespec50p) ts; 168 syscallarg(netbsd32_lwpid_t) unpark; 169 syscallarg(netbsd32_voidp) hint; 170 syscallarg(netbsd32_voidp) unparkhint; 171 } */ 172 struct timespec ts, *tsp; 173 struct netbsd32_timespec ts32; 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), 188 SCARG_P32(uap, unparkhint)); 189 if (error != 0) 190 return error; 191 } 192 193 return lwp_park(SCARG(uap, clock_id), SCARG(uap, flags), tsp, 194 SCARG_P32(uap, hint)); 195 } 196 197 int 198 netbsd32__lwp_kill(struct lwp *l, const struct netbsd32__lwp_kill_args *uap, register_t *retval) 199 { 200 /* { 201 syscallarg(lwpid_t) target; 202 syscallarg(int) signo; 203 } */ 204 struct sys__lwp_kill_args ua; 205 206 NETBSD32TO64_UAP(target); 207 NETBSD32TO64_UAP(signo); 208 return sys__lwp_kill(l, &ua, retval); 209 } 210 int 211 netbsd32__lwp_detach(struct lwp *l, const struct netbsd32__lwp_detach_args *uap, register_t *retval) 212 { 213 /* { 214 syscallarg(lwpid_t) target; 215 } */ 216 struct sys__lwp_detach_args ua; 217 218 NETBSD32TO64_UAP(target); 219 return sys__lwp_detach(l, &ua, retval); 220 } 221 222 int 223 netbsd32__lwp_unpark(struct lwp *l, const struct netbsd32__lwp_unpark_args *uap, register_t *retval) 224 { 225 /* { 226 syscallarg(lwpid_t) target; 227 syscallarg(netbsd32_voidp) hint; 228 } */ 229 struct sys__lwp_unpark_args ua; 230 231 NETBSD32TO64_UAP(target); 232 NETBSD32TOP_UAP(hint, void); 233 return sys__lwp_unpark(l, &ua, retval); 234 } 235 236 int 237 netbsd32__lwp_unpark_all(struct lwp *l, const struct netbsd32__lwp_unpark_all_args *uap, register_t *retval) 238 { 239 /* { 240 syscallarg(const netbsd32_lwpidp) targets; 241 syscallarg(netbsd32_size_t) ntargets; 242 syscallarg(netbsd32_voidp) hint; 243 } */ 244 struct sys__lwp_unpark_all_args ua; 245 246 NETBSD32TOP_UAP(targets, const lwpid_t); 247 NETBSD32TOX_UAP(ntargets, size_t); 248 NETBSD32TOP_UAP(hint, void); 249 return sys__lwp_unpark_all(l, &ua, retval); 250 } 251 252 int 253 netbsd32__lwp_setname(struct lwp *l, const struct netbsd32__lwp_setname_args *uap, register_t *retval) 254 { 255 /* { 256 syscallarg(lwpid_t) target; 257 syscallarg(const netbsd32_charp) name; 258 } */ 259 struct sys__lwp_setname_args ua; 260 261 NETBSD32TO64_UAP(target); 262 NETBSD32TOP_UAP(name, char *); 263 return sys__lwp_setname(l, &ua, retval); 264 } 265 266 int 267 netbsd32__lwp_getname(struct lwp *l, const struct netbsd32__lwp_getname_args *uap, register_t *retval) 268 { 269 /* { 270 syscallarg(lwpid_t) target; 271 syscallarg(netbsd32_charp) name; 272 syscallarg(netbsd32_size_t) len; 273 } */ 274 struct sys__lwp_getname_args ua; 275 276 NETBSD32TO64_UAP(target); 277 NETBSD32TOP_UAP(name, char *); 278 NETBSD32TOX_UAP(len, size_t); 279 return sys__lwp_getname(l, &ua, retval); 280 } 281 282 int 283 netbsd32__lwp_ctl(struct lwp *l, const struct netbsd32__lwp_ctl_args *uap, register_t *retval) 284 { 285 /* { 286 syscallarg(int) features; 287 syscallarg(netbsd32_pointer_t) address; 288 } */ 289 netbsd32_pointer_t vaddr32; 290 int error, features; 291 vaddr_t vaddr; 292 293 features = SCARG(uap, features); 294 features &= ~(LWPCTL_FEATURE_CURCPU | LWPCTL_FEATURE_PCTR); 295 if (features != 0) 296 return ENODEV; 297 if ((error = lwp_ctl_alloc(&vaddr)) != 0) 298 return error; 299 NETBSD32PTR32(vaddr32, (void *)vaddr); 300 return copyout(&vaddr32, SCARG_P32(uap, address), sizeof(vaddr32)); 301 } 302
Indexes created Tue Sep 23 07:09:52 GMT 2025