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
netbsd32__lwp_create(struct lwp * l,const struct netbsd32__lwp_create_args * uap,register_t * retval)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
netbsd32__lwp_wait(struct lwp * l,const struct netbsd32__lwp_wait_args * uap,register_t * retval)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
netbsd32__lwp_suspend(struct lwp * l,const struct netbsd32__lwp_suspend_args * uap,register_t * retval)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
netbsd32__lwp_continue(struct lwp * l,const struct netbsd32__lwp_continue_args * uap,register_t * retval)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
netbsd32__lwp_wakeup(struct lwp * l,const struct netbsd32__lwp_wakeup_args * uap,register_t * retval)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
netbsd32__lwp_setprivate(struct lwp * l,const struct netbsd32__lwp_setprivate_args * uap,register_t * retval)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
netbsd32____lwp_park60(struct lwp * l,const struct netbsd32____lwp_park60_args * uap,register_t * retval)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
netbsd32__lwp_kill(struct lwp * l,const struct netbsd32__lwp_kill_args * uap,register_t * retval)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
netbsd32__lwp_detach(struct lwp * l,const struct netbsd32__lwp_detach_args * uap,register_t * retval)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
netbsd32__lwp_unpark(struct lwp * l,const struct netbsd32__lwp_unpark_args * uap,register_t * retval)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
netbsd32__lwp_unpark_all(struct lwp * l,const struct netbsd32__lwp_unpark_all_args * uap,register_t * retval)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
netbsd32__lwp_setname(struct lwp * l,const struct netbsd32__lwp_setname_args * uap,register_t * retval)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
netbsd32__lwp_getname(struct lwp * l,const struct netbsd32__lwp_getname_args * uap,register_t * retval)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
netbsd32__lwp_ctl(struct lwp * l,const struct netbsd32__lwp_ctl_args * uap,register_t * retval)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