1 /* $NetBSD: netbsd32_lwp.c,v 1.14 2012/07/20 02:27:36 christos Exp $ */ 2 3 /* 4 * Copyright (c) 2005, 2006, 2007 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 1.14 2012/07/20 02:27:36 christos 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 lwpid_t lid; 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 error = do_lwp_create(l, newuc, SCARG(uap, flags), &lid); 78 if (error) 79 goto fail; 80 81 /* 82 * do not free ucontext in case of an error here, 83 * the lwp will actually run and access it 84 */ 85 return copyout(&lid, SCARG_P32(uap, new_lwp), sizeof(lid)); 86 87 fail: 88 kmem_free(newuc, sizeof(ucontext_t)); 89 return error; 90 } 91 92 int 93 netbsd32__lwp_wait(struct lwp *l, const struct netbsd32__lwp_wait_args *uap, register_t *retval) 94 { 95 /* { 96 syscallarg(lwpid_t) wait_for; 97 syscallarg(netbsd32_lwpidp) departed; 98 } */ 99 struct sys__lwp_wait_args ua; 100 101 NETBSD32TO64_UAP(wait_for); 102 NETBSD32TOP_UAP(departed, lwpid_t); 103 return sys__lwp_wait(l, &ua, retval); 104 } 105 106 int 107 netbsd32__lwp_suspend(struct lwp *l, const struct netbsd32__lwp_suspend_args *uap, register_t *retval) 108 { 109 /* { 110 syscallarg(lwpid_t) target; 111 } */ 112 struct sys__lwp_suspend_args ua; 113 114 NETBSD32TO64_UAP(target); 115 return sys__lwp_suspend(l, &ua, retval); 116 } 117 118 int 119 netbsd32__lwp_continue(struct lwp *l, const struct netbsd32__lwp_continue_args *uap, register_t *retval) 120 { 121 /* { 122 syscallarg(lwpid_t) target; 123 } */ 124 struct sys__lwp_continue_args ua; 125 126 NETBSD32TO64_UAP(target); 127 return sys__lwp_continue(l, &ua, retval); 128 } 129 130 int 131 netbsd32__lwp_wakeup(struct lwp *l, const struct netbsd32__lwp_wakeup_args *uap, register_t *retval) 132 { 133 /* { 134 syscallarg(lwpid_t) target; 135 } */ 136 struct sys__lwp_wakeup_args ua; 137 138 NETBSD32TO64_UAP(target); 139 return sys__lwp_wakeup(l, &ua, retval); 140 } 141 142 int 143 netbsd32__lwp_setprivate(struct lwp *l, const struct netbsd32__lwp_setprivate_args *uap, register_t *retval) 144 { 145 /* { 146 syscallarg(netbsd32_voidp) ptr; 147 } */ 148 struct sys__lwp_setprivate_args ua; 149 150 NETBSD32TOP_UAP(ptr, void); 151 return sys__lwp_setprivate(l, &ua, retval); 152 } 153 154 int 155 netbsd32____lwp_park50(struct lwp *l, 156 const struct netbsd32____lwp_park50_args *uap, register_t *retval) 157 { 158 /* { 159 syscallarg(const netbsd32_timespec50p) ts; 160 syscallarg(lwpid_t) unpark; 161 syscallarg(netbsd32_voidp) hint; 162 syscallarg(netbsd32_voidp) unparkhint; 163 } */ 164 struct timespec ts, *tsp; 165 struct netbsd32_timespec ts32; 166 int error; 167 168 if (SCARG_P32(uap, ts) == NULL) 169 tsp = NULL; 170 else { 171 error = copyin(SCARG_P32(uap, ts), &ts32, sizeof ts32); 172 if (error != 0) 173 return error; 174 netbsd32_to_timespec(&ts32, &ts); 175 tsp = &ts; 176 } 177 178 if (SCARG(uap, unpark) != 0) { 179 error = lwp_unpark(SCARG(uap, unpark), 180 SCARG_P32(uap, unparkhint)); 181 if (error != 0) 182 return error; 183 } 184 185 return lwp_park(tsp, SCARG_P32(uap, hint)); 186 } 187 188 int 189 netbsd32__lwp_kill(struct lwp *l, const struct netbsd32__lwp_kill_args *uap, register_t *retval) 190 { 191 /* { 192 syscallarg(lwpid_t) target; 193 syscallarg(int) signo; 194 } */ 195 struct sys__lwp_kill_args ua; 196 197 NETBSD32TO64_UAP(target); 198 NETBSD32TO64_UAP(signo); 199 return sys__lwp_kill(l, &ua, retval); 200 } 201 int 202 netbsd32__lwp_detach(struct lwp *l, const struct netbsd32__lwp_detach_args *uap, register_t *retval) 203 { 204 /* { 205 syscallarg(lwpid_t) target; 206 } */ 207 struct sys__lwp_detach_args ua; 208 209 NETBSD32TO64_UAP(target); 210 return sys__lwp_detach(l, &ua, retval); 211 } 212 213 int 214 netbsd32__lwp_unpark(struct lwp *l, const struct netbsd32__lwp_unpark_args *uap, register_t *retval) 215 { 216 /* { 217 syscallarg(lwpid_t) target; 218 syscallarg(netbsd32_voidp) hint; 219 } */ 220 struct sys__lwp_unpark_args ua; 221 222 NETBSD32TO64_UAP(target); 223 NETBSD32TOP_UAP(hint, void); 224 return sys__lwp_unpark(l, &ua, retval); 225 } 226 227 int 228 netbsd32__lwp_unpark_all(struct lwp *l, const struct netbsd32__lwp_unpark_all_args *uap, register_t *retval) 229 { 230 /* { 231 syscallarg(const netbsd32_lwpidp) targets; 232 syscallarg(netbsd32_size_t) ntargets; 233 syscallarg(netbsd32_voidp) hint; 234 } */ 235 struct sys__lwp_unpark_all_args ua; 236 237 NETBSD32TOP_UAP(targets, const lwpid_t); 238 NETBSD32TOX_UAP(ntargets, size_t); 239 NETBSD32TOP_UAP(hint, void); 240 return sys__lwp_unpark_all(l, &ua, retval); 241 } 242 243 int 244 netbsd32__lwp_setname(struct lwp *l, const struct netbsd32__lwp_setname_args *uap, register_t *retval) 245 { 246 /* { 247 syscallarg(lwpid_t) target; 248 syscallarg(const netbsd32_charp) name; 249 } */ 250 struct sys__lwp_setname_args ua; 251 252 NETBSD32TO64_UAP(target); 253 NETBSD32TOP_UAP(name, char *); 254 return sys__lwp_setname(l, &ua, retval); 255 } 256 257 int 258 netbsd32__lwp_getname(struct lwp *l, const struct netbsd32__lwp_getname_args *uap, register_t *retval) 259 { 260 /* { 261 syscallarg(lwpid_t) target; 262 syscallarg(netbsd32_charp) name; 263 syscallarg(netbsd32_size_t) len; 264 } */ 265 struct sys__lwp_getname_args ua; 266 267 NETBSD32TO64_UAP(target); 268 NETBSD32TOP_UAP(name, char *); 269 NETBSD32TOX_UAP(len, size_t); 270 return sys__lwp_getname(l, &ua, retval); 271 } 272 273 int 274 netbsd32__lwp_ctl(struct lwp *l, const struct netbsd32__lwp_ctl_args *uap, register_t *retval) 275 { 276 /* { 277 syscallarg(int) features; 278 syscallarg(netbsd32_pointer_t) address; 279 } */ 280 struct sys__lwp_ctl_args ua; 281 282 NETBSD32TO64_UAP(features); 283 NETBSD32TOP_UAP(address, struct lwpctl *); 284 return sys__lwp_ctl(l, &ua, retval); 285 } 286