| 1 | /* $NetBSD: netbsd32_lwp.c,v 1.18 2015/05/15 07:56:25 matt 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 1.18 2015/05/15 07:56:25 matt 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_park60(struct lwp *l, |
| 156 | const struct netbsd32____lwp_park60_args *uap, register_t *retval) |
| 157 | { |
| 158 | /* { |
| 159 | syscallarg(const netbsd32_clockid_t) clock_id; |
| 160 | syscallarg(int) flags; |
| 161 | syscallarg(const netbsd32_timespec50p) ts; |
| 162 | syscallarg(netbsd32_lwpid_t) unpark; |
| 163 | syscallarg(netbsd32_voidp) hint; |
| 164 | syscallarg(netbsd32_voidp) unparkhint; |
| 165 | } */ |
| 166 | struct timespec ts, *tsp; |
| 167 | struct netbsd32_timespec ts32; |
| 168 | int error; |
| 169 | |
| 170 | if (SCARG_P32(uap, ts) == NULL) |
| 171 | tsp = NULL; |
| 172 | else { |
| 173 | error = copyin(SCARG_P32(uap, ts), &ts32, sizeof ts32); |
| 174 | if (error != 0) |
| 175 | return error; |
| 176 | netbsd32_to_timespec(&ts32, &ts); |
| 177 | tsp = &ts; |
| 178 | } |
| 179 | |
| 180 | if (SCARG(uap, unpark) != 0) { |
| 181 | error = lwp_unpark(SCARG(uap, unpark), |
| 182 | SCARG_P32(uap, unparkhint)); |
| 183 | if (error != 0) |
| 184 | return error; |
| 185 | } |
| 186 | |
| 187 | return lwp_park(SCARG(uap, clock_id), SCARG(uap, flags), tsp, |
| 188 | SCARG_P32(uap, hint)); |
| 189 | } |
| 190 | |
| 191 | int |
| 192 | netbsd32__lwp_kill(struct lwp *l, const struct netbsd32__lwp_kill_args *uap, register_t *retval) |
| 193 | { |
| 194 | /* { |
| 195 | syscallarg(lwpid_t) target; |
| 196 | syscallarg(int) signo; |
| 197 | } */ |
| 198 | struct sys__lwp_kill_args ua; |
| 199 | |
| 200 | NETBSD32TO64_UAP(target); |
| 201 | NETBSD32TO64_UAP(signo); |
| 202 | return sys__lwp_kill(l, &ua, retval); |
| 203 | } |
| 204 | int |
| 205 | netbsd32__lwp_detach(struct lwp *l, const struct netbsd32__lwp_detach_args *uap, register_t *retval) |
| 206 | { |
| 207 | /* { |
| 208 | syscallarg(lwpid_t) target; |
| 209 | } */ |
| 210 | struct sys__lwp_detach_args ua; |
| 211 | |
| 212 | NETBSD32TO64_UAP(target); |
| 213 | return sys__lwp_detach(l, &ua, retval); |
| 214 | } |
| 215 | |
| 216 | int |
| 217 | netbsd32__lwp_unpark(struct lwp *l, const struct netbsd32__lwp_unpark_args *uap, register_t *retval) |
| 218 | { |
| 219 | /* { |
| 220 | syscallarg(lwpid_t) target; |
| 221 | syscallarg(netbsd32_voidp) hint; |
| 222 | } */ |
| 223 | struct sys__lwp_unpark_args ua; |
| 224 | |
| 225 | NETBSD32TO64_UAP(target); |
| 226 | NETBSD32TOP_UAP(hint, void); |
| 227 | return sys__lwp_unpark(l, &ua, retval); |
| 228 | } |
| 229 | |
| 230 | int |
| 231 | netbsd32__lwp_unpark_all(struct lwp *l, const struct netbsd32__lwp_unpark_all_args *uap, register_t *retval) |
| 232 | { |
| 233 | /* { |
| 234 | syscallarg(const netbsd32_lwpidp) targets; |
| 235 | syscallarg(netbsd32_size_t) ntargets; |
| 236 | syscallarg(netbsd32_voidp) hint; |
| 237 | } */ |
| 238 | struct sys__lwp_unpark_all_args ua; |
| 239 | |
| 240 | NETBSD32TOP_UAP(targets, const lwpid_t); |
| 241 | NETBSD32TOX_UAP(ntargets, size_t); |
| 242 | NETBSD32TOP_UAP(hint, void); |
| 243 | return sys__lwp_unpark_all(l, &ua, retval); |
| 244 | } |
| 245 | |
| 246 | int |
| 247 | netbsd32__lwp_setname(struct lwp *l, const struct netbsd32__lwp_setname_args *uap, register_t *retval) |
| 248 | { |
| 249 | /* { |
| 250 | syscallarg(lwpid_t) target; |
| 251 | syscallarg(const netbsd32_charp) name; |
| 252 | } */ |
| 253 | struct sys__lwp_setname_args ua; |
| 254 | |
| 255 | NETBSD32TO64_UAP(target); |
| 256 | NETBSD32TOP_UAP(name, char *); |
| 257 | return sys__lwp_setname(l, &ua, retval); |
| 258 | } |
| 259 | |
| 260 | int |
| 261 | netbsd32__lwp_getname(struct lwp *l, const struct netbsd32__lwp_getname_args *uap, register_t *retval) |
| 262 | { |
| 263 | /* { |
| 264 | syscallarg(lwpid_t) target; |
| 265 | syscallarg(netbsd32_charp) name; |
| 266 | syscallarg(netbsd32_size_t) len; |
| 267 | } */ |
| 268 | struct sys__lwp_getname_args ua; |
| 269 | |
| 270 | NETBSD32TO64_UAP(target); |
| 271 | NETBSD32TOP_UAP(name, char *); |
| 272 | NETBSD32TOX_UAP(len, size_t); |
| 273 | return sys__lwp_getname(l, &ua, retval); |
| 274 | } |
| 275 | |
| 276 | int |
| 277 | netbsd32__lwp_ctl(struct lwp *l, const struct netbsd32__lwp_ctl_args *uap, register_t *retval) |
| 278 | { |
| 279 | /* { |
| 280 | syscallarg(int) features; |
| 281 | syscallarg(netbsd32_pointer_t) address; |
| 282 | } */ |
| 283 | netbsd32_pointer_t vaddr32; |
| 284 | int error, features; |
| 285 | vaddr_t vaddr; |
| 286 | |
| 287 | features = SCARG(uap, features); |
| 288 | features &= ~(LWPCTL_FEATURE_CURCPU | LWPCTL_FEATURE_PCTR); |
| 289 | if (features != 0) |
| 290 | return ENODEV; |
| 291 | if ((error = lwp_ctl_alloc(&vaddr)) != 0) |
| 292 | return error; |
| 293 | NETBSD32PTR32(vaddr32, (void *)vaddr); |
| 294 | return copyout(&vaddr32, SCARG_P32(uap, address), sizeof(vaddr32)); |
| 295 | } |
| 296 | |