| @@ -1,676 +1,675 @@ | | | @@ -1,676 +1,675 @@ |
1 | /* $NetBSD: linux_sched.c,v 1.58 2008/10/25 23:38:28 christos Exp $ */ | | 1 | /* $NetBSD: linux_sched.c,v 1.58.10.1 2009/06/19 21:41:33 snj Exp $ */ |
2 | | | 2 | |
3 | /*- | | 3 | /*- |
4 | * Copyright (c) 1999 The NetBSD Foundation, Inc. | | 4 | * Copyright (c) 1999 The NetBSD Foundation, Inc. |
5 | * All rights reserved. | | 5 | * All rights reserved. |
6 | * | | 6 | * |
7 | * This code is derived from software contributed to The NetBSD Foundation | | 7 | * This code is derived from software contributed to The NetBSD Foundation |
8 | * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, | | 8 | * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, |
9 | * NASA Ames Research Center; by Matthias Scheler. | | 9 | * NASA Ames Research Center; by Matthias Scheler. |
10 | * | | 10 | * |
11 | * Redistribution and use in source and binary forms, with or without | | 11 | * Redistribution and use in source and binary forms, with or without |
12 | * modification, are permitted provided that the following conditions | | 12 | * modification, are permitted provided that the following conditions |
13 | * are met: | | 13 | * are met: |
14 | * 1. Redistributions of source code must retain the above copyright | | 14 | * 1. Redistributions of source code must retain the above copyright |
15 | * notice, this list of conditions and the following disclaimer. | | 15 | * notice, this list of conditions and the following disclaimer. |
16 | * 2. Redistributions in binary form must reproduce the above copyright | | 16 | * 2. Redistributions in binary form must reproduce the above copyright |
17 | * notice, this list of conditions and the following disclaimer in the | | 17 | * notice, this list of conditions and the following disclaimer in the |
18 | * documentation and/or other materials provided with the distribution. | | 18 | * documentation and/or other materials provided with the distribution. |
19 | * | | 19 | * |
20 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS | | 20 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
21 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED | | 21 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
22 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | | 22 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
23 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS | | 23 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
24 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | | 24 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
25 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | | 25 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
26 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | | 26 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
27 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | | 27 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
28 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | | 28 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
29 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | | 29 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
30 | * POSSIBILITY OF SUCH DAMAGE. | | 30 | * POSSIBILITY OF SUCH DAMAGE. |
31 | */ | | 31 | */ |
32 | | | 32 | |
33 | /* | | 33 | /* |
34 | * Linux compatibility module. Try to deal with scheduler related syscalls. | | 34 | * Linux compatibility module. Try to deal with scheduler related syscalls. |
35 | */ | | 35 | */ |
36 | | | 36 | |
37 | #include <sys/cdefs.h> | | 37 | #include <sys/cdefs.h> |
38 | __KERNEL_RCSID(0, "$NetBSD: linux_sched.c,v 1.58 2008/10/25 23:38:28 christos Exp $"); | | 38 | __KERNEL_RCSID(0, "$NetBSD: linux_sched.c,v 1.58.10.1 2009/06/19 21:41:33 snj Exp $"); |
39 | | | 39 | |
40 | #include <sys/param.h> | | 40 | #include <sys/param.h> |
41 | #include <sys/mount.h> | | 41 | #include <sys/mount.h> |
42 | #include <sys/proc.h> | | 42 | #include <sys/proc.h> |
43 | #include <sys/systm.h> | | 43 | #include <sys/systm.h> |
44 | #include <sys/sysctl.h> | | 44 | #include <sys/sysctl.h> |
45 | #include <sys/malloc.h> | | 45 | #include <sys/malloc.h> |
46 | #include <sys/syscallargs.h> | | 46 | #include <sys/syscallargs.h> |
47 | #include <sys/wait.h> | | 47 | #include <sys/wait.h> |
48 | #include <sys/kauth.h> | | 48 | #include <sys/kauth.h> |
49 | #include <sys/ptrace.h> | | 49 | #include <sys/ptrace.h> |
50 | | | 50 | |
51 | #include <sys/cpu.h> | | 51 | #include <sys/cpu.h> |
52 | | | 52 | |
53 | #include <compat/linux/common/linux_types.h> | | 53 | #include <compat/linux/common/linux_types.h> |
54 | #include <compat/linux/common/linux_signal.h> | | 54 | #include <compat/linux/common/linux_signal.h> |
55 | #include <compat/linux/common/linux_machdep.h> /* For LINUX_NPTL */ | | 55 | #include <compat/linux/common/linux_machdep.h> /* For LINUX_NPTL */ |
56 | #include <compat/linux/common/linux_emuldata.h> | | 56 | #include <compat/linux/common/linux_emuldata.h> |
57 | #include <compat/linux/common/linux_ipc.h> | | 57 | #include <compat/linux/common/linux_ipc.h> |
58 | #include <compat/linux/common/linux_sem.h> | | 58 | #include <compat/linux/common/linux_sem.h> |
59 | #include <compat/linux/common/linux_exec.h> | | 59 | #include <compat/linux/common/linux_exec.h> |
60 | | | 60 | |
61 | #include <compat/linux/linux_syscallargs.h> | | 61 | #include <compat/linux/linux_syscallargs.h> |
62 | | | 62 | |
63 | #include <compat/linux/common/linux_sched.h> | | 63 | #include <compat/linux/common/linux_sched.h> |
64 | | | 64 | |
65 | int | | 65 | int |
66 | linux_sys_clone(struct lwp *l, const struct linux_sys_clone_args *uap, register_t *retval) | | 66 | linux_sys_clone(struct lwp *l, const struct linux_sys_clone_args *uap, register_t *retval) |
67 | { | | 67 | { |
68 | /* { | | 68 | /* { |
69 | syscallarg(int) flags; | | 69 | syscallarg(int) flags; |
70 | syscallarg(void *) stack; | | 70 | syscallarg(void *) stack; |
71 | #ifdef LINUX_NPTL | | 71 | #ifdef LINUX_NPTL |
72 | syscallarg(void *) parent_tidptr; | | 72 | syscallarg(void *) parent_tidptr; |
73 | syscallarg(void *) child_tidptr; | | 73 | syscallarg(void *) child_tidptr; |
74 | #endif | | 74 | #endif |
75 | } */ | | 75 | } */ |
76 | int flags, sig; | | 76 | int flags, sig; |
77 | int error; | | 77 | int error; |
78 | struct proc *p; | | 78 | struct proc *p; |
79 | #ifdef LINUX_NPTL | | 79 | #ifdef LINUX_NPTL |
80 | struct linux_emuldata *led; | | 80 | struct linux_emuldata *led; |
81 | #endif | | 81 | #endif |
82 | | | 82 | |
83 | /* | | 83 | /* |
84 | * We don't support the Linux CLONE_PID or CLONE_PTRACE flags. | | 84 | * We don't support the Linux CLONE_PID or CLONE_PTRACE flags. |
85 | */ | | 85 | */ |
86 | if (SCARG(uap, flags) & (LINUX_CLONE_PID|LINUX_CLONE_PTRACE)) | | 86 | if (SCARG(uap, flags) & (LINUX_CLONE_PID|LINUX_CLONE_PTRACE)) |
87 | return (EINVAL); | | 87 | return (EINVAL); |
88 | | | 88 | |
89 | /* | | 89 | /* |
90 | * Thread group implies shared signals. Shared signals | | 90 | * Thread group implies shared signals. Shared signals |
91 | * imply shared VM. This matches what Linux kernel does. | | 91 | * imply shared VM. This matches what Linux kernel does. |
92 | */ | | 92 | */ |
93 | if (SCARG(uap, flags) & LINUX_CLONE_THREAD | | 93 | if (SCARG(uap, flags) & LINUX_CLONE_THREAD |
94 | && (SCARG(uap, flags) & LINUX_CLONE_SIGHAND) == 0) | | 94 | && (SCARG(uap, flags) & LINUX_CLONE_SIGHAND) == 0) |
95 | return (EINVAL); | | 95 | return (EINVAL); |
96 | if (SCARG(uap, flags) & LINUX_CLONE_SIGHAND | | 96 | if (SCARG(uap, flags) & LINUX_CLONE_SIGHAND |
97 | && (SCARG(uap, flags) & LINUX_CLONE_VM) == 0) | | 97 | && (SCARG(uap, flags) & LINUX_CLONE_VM) == 0) |
98 | return (EINVAL); | | 98 | return (EINVAL); |
99 | | | 99 | |
100 | flags = 0; | | 100 | flags = 0; |
101 | | | 101 | |
102 | if (SCARG(uap, flags) & LINUX_CLONE_VM) | | 102 | if (SCARG(uap, flags) & LINUX_CLONE_VM) |
103 | flags |= FORK_SHAREVM; | | 103 | flags |= FORK_SHAREVM; |
104 | if (SCARG(uap, flags) & LINUX_CLONE_FS) | | 104 | if (SCARG(uap, flags) & LINUX_CLONE_FS) |
105 | flags |= FORK_SHARECWD; | | 105 | flags |= FORK_SHARECWD; |
106 | if (SCARG(uap, flags) & LINUX_CLONE_FILES) | | 106 | if (SCARG(uap, flags) & LINUX_CLONE_FILES) |
107 | flags |= FORK_SHAREFILES; | | 107 | flags |= FORK_SHAREFILES; |
108 | if (SCARG(uap, flags) & LINUX_CLONE_SIGHAND) | | 108 | if (SCARG(uap, flags) & LINUX_CLONE_SIGHAND) |
109 | flags |= FORK_SHARESIGS; | | 109 | flags |= FORK_SHARESIGS; |
110 | if (SCARG(uap, flags) & LINUX_CLONE_VFORK) | | 110 | if (SCARG(uap, flags) & LINUX_CLONE_VFORK) |
111 | flags |= FORK_PPWAIT; | | 111 | flags |= FORK_PPWAIT; |
112 | | | 112 | |
113 | sig = SCARG(uap, flags) & LINUX_CLONE_CSIGNAL; | | 113 | sig = SCARG(uap, flags) & LINUX_CLONE_CSIGNAL; |
114 | if (sig < 0 || sig >= LINUX__NSIG) | | 114 | if (sig < 0 || sig >= LINUX__NSIG) |
115 | return (EINVAL); | | 115 | return (EINVAL); |
116 | sig = linux_to_native_signo[sig]; | | 116 | sig = linux_to_native_signo[sig]; |
117 | | | 117 | |
118 | #ifdef LINUX_NPTL | | 118 | #ifdef LINUX_NPTL |
119 | led = (struct linux_emuldata *)l->l_proc->p_emuldata; | | 119 | led = (struct linux_emuldata *)l->l_proc->p_emuldata; |
120 | | | 120 | |
121 | led->parent_tidptr = SCARG(uap, parent_tidptr); | | 121 | led->parent_tidptr = SCARG(uap, parent_tidptr); |
122 | led->child_tidptr = SCARG(uap, child_tidptr); | | 122 | led->child_tidptr = SCARG(uap, child_tidptr); |
123 | led->clone_flags = SCARG(uap, flags); | | 123 | led->clone_flags = SCARG(uap, flags); |
124 | #endif /* LINUX_NPTL */ | | 124 | #endif /* LINUX_NPTL */ |
125 | | | 125 | |
126 | /* | | 126 | /* |
127 | * Note that Linux does not provide a portable way of specifying | | 127 | * Note that Linux does not provide a portable way of specifying |
128 | * the stack area; the caller must know if the stack grows up | | 128 | * the stack area; the caller must know if the stack grows up |
129 | * or down. So, we pass a stack size of 0, so that the code | | 129 | * or down. So, we pass a stack size of 0, so that the code |
130 | * that makes this adjustment is a noop. | | 130 | * that makes this adjustment is a noop. |
131 | */ | | 131 | */ |
132 | if ((error = fork1(l, flags, sig, SCARG(uap, stack), 0, | | 132 | if ((error = fork1(l, flags, sig, SCARG(uap, stack), 0, |
133 | NULL, NULL, retval, &p)) != 0) | | 133 | NULL, NULL, retval, &p)) != 0) |
134 | return error; | | 134 | return error; |
135 | | | 135 | |
136 | #ifdef LINUX_NPTL | | 136 | #ifdef LINUX_NPTL |
137 | if ((SCARG(uap, flags) & LINUX_CLONE_SETTLS) != 0) | | 137 | if ((SCARG(uap, flags) & LINUX_CLONE_SETTLS) != 0) |
138 | return linux_init_thread_area(l, LIST_FIRST(&p->p_lwps)); | | 138 | return linux_init_thread_area(l, LIST_FIRST(&p->p_lwps)); |
139 | #endif /* LINUX_NPTL */ | | 139 | #endif /* LINUX_NPTL */ |
140 | | | 140 | |
141 | return 0; | | 141 | return 0; |
142 | } | | 142 | } |
143 | | | 143 | |
144 | /* | | 144 | /* |
145 | * linux realtime priority | | 145 | * linux realtime priority |
146 | * | | 146 | * |
147 | * - SCHED_RR and SCHED_FIFO tasks have priorities [1,99]. | | 147 | * - SCHED_RR and SCHED_FIFO tasks have priorities [1,99]. |
148 | * | | 148 | * |
149 | * - SCHED_OTHER tasks don't have realtime priorities. | | 149 | * - SCHED_OTHER tasks don't have realtime priorities. |
150 | * in particular, sched_param::sched_priority is always 0. | | 150 | * in particular, sched_param::sched_priority is always 0. |
151 | */ | | 151 | */ |
152 | | | 152 | |
153 | #define LINUX_SCHED_RTPRIO_MIN 1 | | 153 | #define LINUX_SCHED_RTPRIO_MIN 1 |
154 | #define LINUX_SCHED_RTPRIO_MAX 99 | | 154 | #define LINUX_SCHED_RTPRIO_MAX 99 |
155 | | | 155 | |
156 | static int | | 156 | static int |
157 | sched_linux2native(int linux_policy, struct linux_sched_param *linux_params, | | 157 | sched_linux2native(int linux_policy, struct linux_sched_param *linux_params, |
158 | int *native_policy, struct sched_param *native_params) | | 158 | int *native_policy, struct sched_param *native_params) |
159 | { | | 159 | { |
160 | | | 160 | |
161 | switch (linux_policy) { | | 161 | switch (linux_policy) { |
162 | case LINUX_SCHED_OTHER: | | 162 | case LINUX_SCHED_OTHER: |
163 | if (native_policy != NULL) { | | 163 | if (native_policy != NULL) { |
164 | *native_policy = SCHED_OTHER; | | 164 | *native_policy = SCHED_OTHER; |
165 | } | | 165 | } |
166 | break; | | 166 | break; |
167 | | | 167 | |
168 | case LINUX_SCHED_FIFO: | | 168 | case LINUX_SCHED_FIFO: |
169 | if (native_policy != NULL) { | | 169 | if (native_policy != NULL) { |
170 | *native_policy = SCHED_FIFO; | | 170 | *native_policy = SCHED_FIFO; |
171 | } | | 171 | } |
172 | break; | | 172 | break; |
173 | | | 173 | |
174 | case LINUX_SCHED_RR: | | 174 | case LINUX_SCHED_RR: |
175 | if (native_policy != NULL) { | | 175 | if (native_policy != NULL) { |
176 | *native_policy = SCHED_RR; | | 176 | *native_policy = SCHED_RR; |
177 | } | | 177 | } |
178 | break; | | 178 | break; |
179 | | | 179 | |
180 | default: | | 180 | default: |
181 | return EINVAL; | | 181 | return EINVAL; |
182 | } | | 182 | } |
183 | | | 183 | |
184 | if (linux_params != NULL) { | | 184 | if (linux_params != NULL) { |
185 | int prio = linux_params->sched_priority; | | 185 | int prio = linux_params->sched_priority; |
186 | | | 186 | |
187 | KASSERT(native_params != NULL); | | 187 | KASSERT(native_params != NULL); |
188 | | | 188 | |
189 | if (linux_policy == LINUX_SCHED_OTHER) { | | 189 | if (linux_policy == LINUX_SCHED_OTHER) { |
190 | if (prio != 0) { | | 190 | if (prio != 0) { |
191 | return EINVAL; | | 191 | return EINVAL; |
192 | } | | 192 | } |
193 | native_params->sched_priority = PRI_NONE; /* XXX */ | | 193 | native_params->sched_priority = PRI_NONE; /* XXX */ |
194 | } else { | | 194 | } else { |
195 | if (prio < LINUX_SCHED_RTPRIO_MIN || | | 195 | if (prio < LINUX_SCHED_RTPRIO_MIN || |
196 | prio > LINUX_SCHED_RTPRIO_MAX) { | | 196 | prio > LINUX_SCHED_RTPRIO_MAX) { |
197 | return EINVAL; | | 197 | return EINVAL; |
198 | } | | 198 | } |
199 | native_params->sched_priority = | | 199 | native_params->sched_priority = |
200 | (prio - LINUX_SCHED_RTPRIO_MIN) | | 200 | (prio - LINUX_SCHED_RTPRIO_MIN) |
201 | * (SCHED_PRI_MAX - SCHED_PRI_MIN) | | 201 | * (SCHED_PRI_MAX - SCHED_PRI_MIN) |
202 | / (LINUX_SCHED_RTPRIO_MAX - LINUX_SCHED_RTPRIO_MIN) | | 202 | / (LINUX_SCHED_RTPRIO_MAX - LINUX_SCHED_RTPRIO_MIN) |
203 | + SCHED_PRI_MIN; | | 203 | + SCHED_PRI_MIN; |
204 | } | | 204 | } |
205 | } | | 205 | } |
206 | | | 206 | |
207 | return 0; | | 207 | return 0; |
208 | } | | 208 | } |
209 | | | 209 | |
210 | static int | | 210 | static int |
211 | sched_native2linux(int native_policy, struct sched_param *native_params, | | 211 | sched_native2linux(int native_policy, struct sched_param *native_params, |
212 | int *linux_policy, struct linux_sched_param *linux_params) | | 212 | int *linux_policy, struct linux_sched_param *linux_params) |
213 | { | | 213 | { |
214 | | | 214 | |
215 | switch (native_policy) { | | 215 | switch (native_policy) { |
216 | case SCHED_OTHER: | | 216 | case SCHED_OTHER: |
217 | if (linux_policy != NULL) { | | 217 | if (linux_policy != NULL) { |
218 | *linux_policy = LINUX_SCHED_OTHER; | | 218 | *linux_policy = LINUX_SCHED_OTHER; |
219 | } | | 219 | } |
220 | break; | | 220 | break; |
221 | | | 221 | |
222 | case SCHED_FIFO: | | 222 | case SCHED_FIFO: |
223 | if (linux_policy != NULL) { | | 223 | if (linux_policy != NULL) { |
224 | *linux_policy = LINUX_SCHED_FIFO; | | 224 | *linux_policy = LINUX_SCHED_FIFO; |
225 | } | | 225 | } |
226 | break; | | 226 | break; |
227 | | | 227 | |
228 | case SCHED_RR: | | 228 | case SCHED_RR: |
229 | if (linux_policy != NULL) { | | 229 | if (linux_policy != NULL) { |
230 | *linux_policy = LINUX_SCHED_RR; | | 230 | *linux_policy = LINUX_SCHED_RR; |
231 | } | | 231 | } |
232 | break; | | 232 | break; |
233 | | | 233 | |
234 | default: | | 234 | default: |
235 | panic("%s: unknown policy %d\n", __func__, native_policy); | | 235 | panic("%s: unknown policy %d\n", __func__, native_policy); |
236 | } | | 236 | } |
237 | | | 237 | |
238 | if (native_params != NULL) { | | 238 | if (native_params != NULL) { |
239 | int prio = native_params->sched_priority; | | 239 | int prio = native_params->sched_priority; |
240 | | | 240 | |
241 | KASSERT(prio >= SCHED_PRI_MIN); | | 241 | KASSERT(prio >= SCHED_PRI_MIN); |
242 | KASSERT(prio <= SCHED_PRI_MAX); | | 242 | KASSERT(prio <= SCHED_PRI_MAX); |
243 | KASSERT(linux_params != NULL); | | 243 | KASSERT(linux_params != NULL); |
244 | | | 244 | |
245 | #ifdef DEBUG_LINUX | | 245 | #ifdef DEBUG_LINUX |
246 | printf("native2linux: native: policy %d, priority %d\n", | | 246 | printf("native2linux: native: policy %d, priority %d\n", |
247 | native_policy, prio); | | 247 | native_policy, prio); |
248 | #endif | | 248 | #endif |
249 | | | 249 | |
250 | if (native_policy == SCHED_OTHER) { | | 250 | if (native_policy == SCHED_OTHER) { |
251 | linux_params->sched_priority = 0; | | 251 | linux_params->sched_priority = 0; |
252 | } else { | | 252 | } else { |
253 | linux_params->sched_priority = | | 253 | linux_params->sched_priority = |
254 | (prio - SCHED_PRI_MIN) | | 254 | (prio - SCHED_PRI_MIN) |
255 | * (LINUX_SCHED_RTPRIO_MAX - LINUX_SCHED_RTPRIO_MIN) | | 255 | * (LINUX_SCHED_RTPRIO_MAX - LINUX_SCHED_RTPRIO_MIN) |
256 | / (SCHED_PRI_MAX - SCHED_PRI_MIN) | | 256 | / (SCHED_PRI_MAX - SCHED_PRI_MIN) |
257 | + LINUX_SCHED_RTPRIO_MIN; | | 257 | + LINUX_SCHED_RTPRIO_MIN; |
258 | } | | 258 | } |
259 | #ifdef DEBUG_LINUX | | 259 | #ifdef DEBUG_LINUX |
260 | printf("native2linux: linux: policy %d, priority %d\n", | | 260 | printf("native2linux: linux: policy %d, priority %d\n", |
261 | -1, linux_params->sched_priority); | | 261 | -1, linux_params->sched_priority); |
262 | #endif | | 262 | #endif |
263 | } | | 263 | } |
264 | | | 264 | |
265 | return 0; | | 265 | return 0; |
266 | } | | 266 | } |
267 | | | 267 | |
268 | int | | 268 | int |
269 | linux_sys_sched_setparam(struct lwp *l, const struct linux_sys_sched_setparam_args *uap, register_t *retval) | | 269 | linux_sys_sched_setparam(struct lwp *l, const struct linux_sys_sched_setparam_args *uap, register_t *retval) |
270 | { | | 270 | { |
271 | /* { | | 271 | /* { |
272 | syscallarg(linux_pid_t) pid; | | 272 | syscallarg(linux_pid_t) pid; |
273 | syscallarg(const struct linux_sched_param *) sp; | | 273 | syscallarg(const struct linux_sched_param *) sp; |
274 | } */ | | 274 | } */ |
275 | int error, policy; | | 275 | int error, policy; |
276 | struct linux_sched_param lp; | | 276 | struct linux_sched_param lp; |
277 | struct sched_param sp; | | 277 | struct sched_param sp; |
278 | | | 278 | |
279 | if (SCARG(uap, pid) < 0 || SCARG(uap, sp) == NULL) { | | 279 | if (SCARG(uap, pid) < 0 || SCARG(uap, sp) == NULL) { |
280 | error = EINVAL; | | 280 | error = EINVAL; |
281 | goto out; | | 281 | goto out; |
282 | } | | 282 | } |
283 | | | 283 | |
284 | error = copyin(SCARG(uap, sp), &lp, sizeof(lp)); | | 284 | error = copyin(SCARG(uap, sp), &lp, sizeof(lp)); |
285 | if (error) | | 285 | if (error) |
286 | goto out; | | 286 | goto out; |
287 | | | 287 | |
288 | /* We need the current policy in Linux terms. */ | | 288 | /* We need the current policy in Linux terms. */ |
289 | error = do_sched_getparam(SCARG(uap, pid), 0, &policy, NULL); | | 289 | error = do_sched_getparam(SCARG(uap, pid), 0, &policy, NULL); |
290 | if (error) | | 290 | if (error) |
291 | goto out; | | 291 | goto out; |
292 | error = sched_native2linux(policy, NULL, &policy, NULL); | | 292 | error = sched_native2linux(policy, NULL, &policy, NULL); |
293 | if (error) | | 293 | if (error) |
294 | goto out; | | 294 | goto out; |
295 | | | 295 | |
296 | error = sched_linux2native(policy, &lp, &policy, &sp); | | 296 | error = sched_linux2native(policy, &lp, &policy, &sp); |
297 | if (error) | | 297 | if (error) |
298 | goto out; | | 298 | goto out; |
299 | | | 299 | |
300 | error = do_sched_setparam(SCARG(uap, pid), 0, policy, &sp); | | 300 | error = do_sched_setparam(SCARG(uap, pid), 0, policy, &sp); |
301 | if (error) | | 301 | if (error) |
302 | goto out; | | 302 | goto out; |
303 | | | 303 | |
304 | out: | | 304 | out: |
305 | return error; | | 305 | return error; |
306 | } | | 306 | } |
307 | | | 307 | |
308 | int | | 308 | int |
309 | linux_sys_sched_getparam(struct lwp *l, const struct linux_sys_sched_getparam_args *uap, register_t *retval) | | 309 | linux_sys_sched_getparam(struct lwp *l, const struct linux_sys_sched_getparam_args *uap, register_t *retval) |
310 | { | | 310 | { |
311 | /* { | | 311 | /* { |
312 | syscallarg(linux_pid_t) pid; | | 312 | syscallarg(linux_pid_t) pid; |
313 | syscallarg(struct linux_sched_param *) sp; | | 313 | syscallarg(struct linux_sched_param *) sp; |
314 | } */ | | 314 | } */ |
315 | struct linux_sched_param lp; | | 315 | struct linux_sched_param lp; |
316 | struct sched_param sp; | | 316 | struct sched_param sp; |
317 | int error, policy; | | 317 | int error, policy; |
318 | | | 318 | |
319 | if (SCARG(uap, pid) < 0 || SCARG(uap, sp) == NULL) { | | 319 | if (SCARG(uap, pid) < 0 || SCARG(uap, sp) == NULL) { |
320 | error = EINVAL; | | 320 | error = EINVAL; |
321 | goto out; | | 321 | goto out; |
322 | } | | 322 | } |
323 | | | 323 | |
324 | error = do_sched_getparam(SCARG(uap, pid), 0, &policy, &sp); | | 324 | error = do_sched_getparam(SCARG(uap, pid), 0, &policy, &sp); |
325 | if (error) | | 325 | if (error) |
326 | goto out; | | 326 | goto out; |
327 | #ifdef DEBUG_LINUX | | 327 | #ifdef DEBUG_LINUX |
328 | printf("getparam: native: policy %d, priority %d\n", | | 328 | printf("getparam: native: policy %d, priority %d\n", |
329 | policy, sp.sched_priority); | | 329 | policy, sp.sched_priority); |
330 | #endif | | 330 | #endif |
331 | | | 331 | |
332 | error = sched_native2linux(policy, &sp, NULL, &lp); | | 332 | error = sched_native2linux(policy, &sp, NULL, &lp); |
333 | if (error) | | 333 | if (error) |
334 | goto out; | | 334 | goto out; |
335 | #ifdef DEBUG_LINUX | | 335 | #ifdef DEBUG_LINUX |
336 | printf("getparam: linux: policy %d, priority %d\n", | | 336 | printf("getparam: linux: policy %d, priority %d\n", |
337 | policy, lp.sched_priority); | | 337 | policy, lp.sched_priority); |
338 | #endif | | 338 | #endif |
339 | | | 339 | |
340 | error = copyout(&lp, SCARG(uap, sp), sizeof(lp)); | | 340 | error = copyout(&lp, SCARG(uap, sp), sizeof(lp)); |
341 | if (error) | | 341 | if (error) |
342 | goto out; | | 342 | goto out; |
343 | | | 343 | |
344 | out: | | 344 | out: |
345 | return error; | | 345 | return error; |
346 | } | | 346 | } |
347 | | | 347 | |
348 | int | | 348 | int |
349 | linux_sys_sched_setscheduler(struct lwp *l, const struct linux_sys_sched_setscheduler_args *uap, register_t *retval) | | 349 | linux_sys_sched_setscheduler(struct lwp *l, const struct linux_sys_sched_setscheduler_args *uap, register_t *retval) |
350 | { | | 350 | { |
351 | /* { | | 351 | /* { |
352 | syscallarg(linux_pid_t) pid; | | 352 | syscallarg(linux_pid_t) pid; |
353 | syscallarg(int) policy; | | 353 | syscallarg(int) policy; |
354 | syscallarg(cont struct linux_sched_scheduler *) sp; | | 354 | syscallarg(cont struct linux_sched_scheduler *) sp; |
355 | } */ | | 355 | } */ |
356 | int error, policy; | | 356 | int error, policy; |
357 | struct linux_sched_param lp; | | 357 | struct linux_sched_param lp; |
358 | struct sched_param sp; | | 358 | struct sched_param sp; |
359 | | | 359 | |
360 | if (SCARG(uap, pid) < 0 || SCARG(uap, sp) == NULL) { | | 360 | if (SCARG(uap, pid) < 0 || SCARG(uap, sp) == NULL) { |
361 | error = EINVAL; | | 361 | error = EINVAL; |
362 | goto out; | | 362 | goto out; |
363 | } | | 363 | } |
364 | | | 364 | |
365 | error = copyin(SCARG(uap, sp), &lp, sizeof(lp)); | | 365 | error = copyin(SCARG(uap, sp), &lp, sizeof(lp)); |
366 | if (error) | | 366 | if (error) |
367 | goto out; | | 367 | goto out; |
368 | #ifdef DEBUG_LINUX | | 368 | #ifdef DEBUG_LINUX |
369 | printf("setscheduler: linux: policy %d, priority %d\n", | | 369 | printf("setscheduler: linux: policy %d, priority %d\n", |
370 | SCARG(uap, policy), lp.sched_priority); | | 370 | SCARG(uap, policy), lp.sched_priority); |
371 | #endif | | 371 | #endif |
372 | | | 372 | |
373 | error = sched_linux2native(SCARG(uap, policy), &lp, &policy, &sp); | | 373 | error = sched_linux2native(SCARG(uap, policy), &lp, &policy, &sp); |
374 | if (error) | | 374 | if (error) |
375 | goto out; | | 375 | goto out; |
376 | #ifdef DEBUG_LINUX | | 376 | #ifdef DEBUG_LINUX |
377 | printf("setscheduler: native: policy %d, priority %d\n", | | 377 | printf("setscheduler: native: policy %d, priority %d\n", |
378 | policy, sp.sched_priority); | | 378 | policy, sp.sched_priority); |
379 | #endif | | 379 | #endif |
380 | | | 380 | |
381 | error = do_sched_setparam(SCARG(uap, pid), 0, policy, &sp); | | 381 | error = do_sched_setparam(SCARG(uap, pid), 0, policy, &sp); |
382 | if (error) | | 382 | if (error) |
383 | goto out; | | 383 | goto out; |
384 | | | 384 | |
385 | out: | | 385 | out: |
386 | return error; | | 386 | return error; |
387 | } | | 387 | } |
388 | | | 388 | |
389 | int | | 389 | int |
390 | linux_sys_sched_getscheduler(struct lwp *l, const struct linux_sys_sched_getscheduler_args *uap, register_t *retval) | | 390 | linux_sys_sched_getscheduler(struct lwp *l, const struct linux_sys_sched_getscheduler_args *uap, register_t *retval) |
391 | { | | 391 | { |
392 | /* { | | 392 | /* { |
393 | syscallarg(linux_pid_t) pid; | | 393 | syscallarg(linux_pid_t) pid; |
394 | } */ | | 394 | } */ |
395 | int error, policy; | | 395 | int error, policy; |
396 | | | 396 | |
397 | *retval = -1; | | 397 | *retval = -1; |
398 | | | 398 | |
399 | error = do_sched_getparam(SCARG(uap, pid), 0, &policy, NULL); | | 399 | error = do_sched_getparam(SCARG(uap, pid), 0, &policy, NULL); |
400 | if (error) | | 400 | if (error) |
401 | goto out; | | 401 | goto out; |
402 | | | 402 | |
403 | error = sched_native2linux(policy, NULL, &policy, NULL); | | 403 | error = sched_native2linux(policy, NULL, &policy, NULL); |
404 | if (error) | | 404 | if (error) |
405 | goto out; | | 405 | goto out; |
406 | | | 406 | |
407 | *retval = policy; | | 407 | *retval = policy; |
408 | | | 408 | |
409 | out: | | 409 | out: |
410 | return error; | | 410 | return error; |
411 | } | | 411 | } |
412 | | | 412 | |
413 | int | | 413 | int |
414 | linux_sys_sched_yield(struct lwp *l, const void *v, register_t *retval) | | 414 | linux_sys_sched_yield(struct lwp *l, const void *v, register_t *retval) |
415 | { | | 415 | { |
416 | | | 416 | |
417 | yield(); | | 417 | yield(); |
418 | return 0; | | 418 | return 0; |
419 | } | | 419 | } |
420 | | | 420 | |
421 | int | | 421 | int |
422 | linux_sys_sched_get_priority_max(struct lwp *l, const struct linux_sys_sched_get_priority_max_args *uap, register_t *retval) | | 422 | linux_sys_sched_get_priority_max(struct lwp *l, const struct linux_sys_sched_get_priority_max_args *uap, register_t *retval) |
423 | { | | 423 | { |
424 | /* { | | 424 | /* { |
425 | syscallarg(int) policy; | | 425 | syscallarg(int) policy; |
426 | } */ | | 426 | } */ |
427 | | | 427 | |
428 | switch (SCARG(uap, policy)) { | | 428 | switch (SCARG(uap, policy)) { |
429 | case LINUX_SCHED_OTHER: | | 429 | case LINUX_SCHED_OTHER: |
430 | *retval = 0; | | 430 | *retval = 0; |
431 | break; | | 431 | break; |
432 | case LINUX_SCHED_FIFO: | | 432 | case LINUX_SCHED_FIFO: |
433 | case LINUX_SCHED_RR: | | 433 | case LINUX_SCHED_RR: |
434 | *retval = LINUX_SCHED_RTPRIO_MAX; | | 434 | *retval = LINUX_SCHED_RTPRIO_MAX; |
435 | break; | | 435 | break; |
436 | default: | | 436 | default: |
437 | return EINVAL; | | 437 | return EINVAL; |
438 | } | | 438 | } |
439 | | | 439 | |
440 | return 0; | | 440 | return 0; |
441 | } | | 441 | } |
442 | | | 442 | |
443 | int | | 443 | int |
444 | linux_sys_sched_get_priority_min(struct lwp *l, const struct linux_sys_sched_get_priority_min_args *uap, register_t *retval) | | 444 | linux_sys_sched_get_priority_min(struct lwp *l, const struct linux_sys_sched_get_priority_min_args *uap, register_t *retval) |
445 | { | | 445 | { |
446 | /* { | | 446 | /* { |
447 | syscallarg(int) policy; | | 447 | syscallarg(int) policy; |
448 | } */ | | 448 | } */ |
449 | | | 449 | |
450 | switch (SCARG(uap, policy)) { | | 450 | switch (SCARG(uap, policy)) { |
451 | case LINUX_SCHED_OTHER: | | 451 | case LINUX_SCHED_OTHER: |
452 | *retval = 0; | | 452 | *retval = 0; |
453 | break; | | 453 | break; |
454 | case LINUX_SCHED_FIFO: | | 454 | case LINUX_SCHED_FIFO: |
455 | case LINUX_SCHED_RR: | | 455 | case LINUX_SCHED_RR: |
456 | *retval = LINUX_SCHED_RTPRIO_MIN; | | 456 | *retval = LINUX_SCHED_RTPRIO_MIN; |
457 | break; | | 457 | break; |
458 | default: | | 458 | default: |
459 | return EINVAL; | | 459 | return EINVAL; |
460 | } | | 460 | } |
461 | | | 461 | |
462 | return 0; | | 462 | return 0; |
463 | } | | 463 | } |
464 | | | 464 | |
465 | #ifndef __m68k__ | | 465 | #ifndef __m68k__ |
466 | /* Present on everything but m68k */ | | 466 | /* Present on everything but m68k */ |
467 | int | | 467 | int |
468 | linux_sys_exit_group(struct lwp *l, const struct linux_sys_exit_group_args *uap, register_t *retval) | | 468 | linux_sys_exit_group(struct lwp *l, const struct linux_sys_exit_group_args *uap, register_t *retval) |
469 | { | | 469 | { |
470 | #ifdef LINUX_NPTL | | 470 | #ifdef LINUX_NPTL |
471 | /* { | | 471 | /* { |
472 | syscallarg(int) error_code; | | 472 | syscallarg(int) error_code; |
473 | } */ | | 473 | } */ |
474 | struct proc *p = l->l_proc; | | 474 | struct proc *p = l->l_proc; |
475 | struct linux_emuldata *led = p->p_emuldata; | | 475 | struct linux_emuldata *led = p->p_emuldata; |
476 | struct linux_emuldata *e; | | 476 | struct linux_emuldata *e; |
477 | | | 477 | |
478 | if (led->s->flags & LINUX_LES_USE_NPTL) { | | 478 | if (led->s->flags & LINUX_LES_USE_NPTL) { |
479 | | | 479 | |
480 | #ifdef DEBUG_LINUX | | 480 | #ifdef DEBUG_LINUX |
481 | printf("%s:%d, led->s->refs = %d\n", __func__, __LINE__, | | 481 | printf("%s:%d, led->s->refs = %d\n", __func__, __LINE__, |
482 | led->s->refs); | | 482 | led->s->refs); |
483 | #endif | | 483 | #endif |
484 | | | 484 | |
485 | /* | | 485 | /* |
486 | * The calling thread is supposed to kill all threads | | 486 | * The calling thread is supposed to kill all threads |
487 | * in the same thread group (i.e. all threads created | | 487 | * in the same thread group (i.e. all threads created |
488 | * via clone(2) with CLONE_THREAD flag set). | | 488 | * via clone(2) with CLONE_THREAD flag set). |
489 | * | | 489 | * |
490 | * If there is only one thread, things are quite simple | | 490 | * If there is only one thread, things are quite simple |
491 | */ | | 491 | */ |
492 | if (led->s->refs == 1) | | 492 | if (led->s->refs == 1) |
493 | return sys_exit(l, (const void *)uap, retval); | | 493 | return sys_exit(l, (const void *)uap, retval); |
494 | | | 494 | |
495 | #ifdef DEBUG_LINUX | | 495 | #ifdef DEBUG_LINUX |
496 | printf("%s:%d\n", __func__, __LINE__); | | 496 | printf("%s:%d\n", __func__, __LINE__); |
497 | #endif | | 497 | #endif |
498 | | | 498 | |
499 | mutex_enter(proc_lock); | | 499 | mutex_enter(proc_lock); |
500 | led->s->flags |= LINUX_LES_INEXITGROUP; | | 500 | led->s->flags |= LINUX_LES_INEXITGROUP; |
501 | led->s->xstat = W_EXITCODE(SCARG(uap, error_code), 0); | | 501 | led->s->xstat = W_EXITCODE(SCARG(uap, error_code), 0); |
502 | | | 502 | |
503 | /* | | 503 | /* |
504 | * Kill all threads in the group. The emulation exit hook takes | | 504 | * Kill all threads in the group. The emulation exit hook takes |
505 | * care of hiding the zombies and reporting the exit code | | 505 | * care of hiding the zombies and reporting the exit code |
506 | * properly. | | 506 | * properly. |
507 | */ | | 507 | */ |
508 | LIST_FOREACH(e, &led->s->threads, threads) { | | 508 | LIST_FOREACH(e, &led->s->threads, threads) { |
509 | if (e->proc == p) | | 509 | if (e->proc == p) |
510 | continue; | | 510 | continue; |
511 | | | 511 | |
512 | #ifdef DEBUG_LINUX | | 512 | #ifdef DEBUG_LINUX |
513 | printf("%s: kill PID %d\n", __func__, e->proc->p_pid); | | 513 | printf("%s: kill PID %d\n", __func__, e->proc->p_pid); |
514 | #endif | | 514 | #endif |
515 | psignal(e->proc, SIGKILL); | | 515 | psignal(e->proc, SIGKILL); |
516 | } | | 516 | } |
517 | | | 517 | |
518 | /* Now, kill ourselves */ | | 518 | /* Now, kill ourselves */ |
519 | psignal(p, SIGKILL); | | 519 | psignal(p, SIGKILL); |
520 | mutex_exit(proc_lock); | | 520 | mutex_exit(proc_lock); |
521 | | | 521 | |
522 | return 0; | | 522 | return 0; |
523 | | | 523 | |
524 | } | | 524 | } |
525 | #endif /* LINUX_NPTL */ | | 525 | #endif /* LINUX_NPTL */ |
526 | | | 526 | |
527 | return sys_exit(l, (const void *)uap, retval); | | 527 | return sys_exit(l, (const void *)uap, retval); |
528 | } | | 528 | } |
529 | #endif /* !__m68k__ */ | | 529 | #endif /* !__m68k__ */ |
530 | | | 530 | |
531 | #ifdef LINUX_NPTL | | 531 | #ifdef LINUX_NPTL |
532 | int | | 532 | int |
533 | linux_sys_set_tid_address(struct lwp *l, const struct linux_sys_set_tid_address_args *uap, register_t *retval) | | 533 | linux_sys_set_tid_address(struct lwp *l, const struct linux_sys_set_tid_address_args *uap, register_t *retval) |
534 | { | | 534 | { |
535 | /* { | | 535 | /* { |
536 | syscallarg(int *) tidptr; | | 536 | syscallarg(int *) tidptr; |
537 | } */ | | 537 | } */ |
538 | struct linux_emuldata *led; | | 538 | struct linux_emuldata *led; |
539 | | | 539 | |
540 | led = (struct linux_emuldata *)l->l_proc->p_emuldata; | | 540 | led = (struct linux_emuldata *)l->l_proc->p_emuldata; |
541 | led->clear_tid = SCARG(uap, tid); | | 541 | led->clear_tid = SCARG(uap, tid); |
542 | | | 542 | |
543 | led->s->flags |= LINUX_LES_USE_NPTL; | | 543 | led->s->flags |= LINUX_LES_USE_NPTL; |
544 | | | 544 | |
545 | *retval = l->l_proc->p_pid; | | 545 | *retval = l->l_proc->p_pid; |
546 | | | 546 | |
547 | return 0; | | 547 | return 0; |
548 | } | | 548 | } |
549 | | | 549 | |
550 | /* ARGUSED1 */ | | 550 | /* ARGUSED1 */ |
551 | int | | 551 | int |
552 | linux_sys_gettid(struct lwp *l, const void *v, register_t *retval) | | 552 | linux_sys_gettid(struct lwp *l, const void *v, register_t *retval) |
553 | { | | 553 | { |
554 | /* The Linux kernel does it exactly that way */ | | 554 | /* The Linux kernel does it exactly that way */ |
555 | *retval = l->l_proc->p_pid; | | 555 | *retval = l->l_proc->p_pid; |
556 | return 0; | | 556 | return 0; |
557 | } | | 557 | } |
558 | | | 558 | |
559 | #ifdef LINUX_NPTL | | 559 | #ifdef LINUX_NPTL |
560 | /* ARGUSED1 */ | | 560 | /* ARGUSED1 */ |
561 | int | | 561 | int |
562 | linux_sys_getpid(struct lwp *l, const void *v, register_t *retval) | | 562 | linux_sys_getpid(struct lwp *l, const void *v, register_t *retval) |
563 | { | | 563 | { |
564 | struct linux_emuldata *led = l->l_proc->p_emuldata; | | 564 | struct linux_emuldata *led = l->l_proc->p_emuldata; |
565 | | | 565 | |
566 | if (led->s->flags & LINUX_LES_USE_NPTL) { | | 566 | if (led->s->flags & LINUX_LES_USE_NPTL) { |
567 | /* The Linux kernel does it exactly that way */ | | 567 | /* The Linux kernel does it exactly that way */ |
568 | *retval = led->s->group_pid; | | 568 | *retval = led->s->group_pid; |
569 | } else { | | 569 | } else { |
570 | *retval = l->l_proc->p_pid; | | 570 | *retval = l->l_proc->p_pid; |
571 | } | | 571 | } |
572 | | | 572 | |
573 | return 0; | | 573 | return 0; |
574 | } | | 574 | } |
575 | | | 575 | |
576 | /* ARGUSED1 */ | | 576 | /* ARGUSED1 */ |
577 | int | | 577 | int |
578 | linux_sys_getppid(struct lwp *l, const void *v, register_t *retval) | | 578 | linux_sys_getppid(struct lwp *l, const void *v, register_t *retval) |
579 | { | | 579 | { |
580 | struct proc *p = l->l_proc; | | 580 | struct proc *p = l->l_proc; |
581 | struct linux_emuldata *led = p->p_emuldata; | | 581 | struct linux_emuldata *led = p->p_emuldata; |
582 | struct proc *glp; | | 582 | struct proc *glp; |
583 | struct proc *pp; | | 583 | struct proc *pp; |
584 | | | 584 | |
585 | mutex_enter(proc_lock); | | 585 | mutex_enter(proc_lock); |
586 | if (led->s->flags & LINUX_LES_USE_NPTL) { | | 586 | if (led->s->flags & LINUX_LES_USE_NPTL) { |
587 | | | 587 | |
588 | /* Find the thread group leader's parent */ | | 588 | /* Find the thread group leader's parent */ |
589 | if ((glp = p_find(led->s->group_pid, PFIND_LOCKED)) == NULL) { | | 589 | if ((glp = p_find(led->s->group_pid, PFIND_LOCKED)) == NULL) { |
590 | /* Maybe panic... */ | | 590 | /* Maybe panic... */ |
591 | printf("linux_sys_getppid: missing group leader PID" | | 591 | printf("linux_sys_getppid: missing group leader PID" |
592 | " %d\n", led->s->group_pid); | | 592 | " %d\n", led->s->group_pid); |
593 | mutex_exit(proc_lock); | | 593 | mutex_exit(proc_lock); |
594 | return -1; | | 594 | return -1; |
595 | } | | 595 | } |
596 | pp = glp->p_pptr; | | 596 | pp = glp->p_pptr; |
597 | | | 597 | |
598 | /* If this is a Linux process too, return thread group PID */ | | 598 | /* If this is a Linux process too, return thread group PID */ |
599 | if (pp->p_emul == p->p_emul) { | | 599 | if (pp->p_emul == p->p_emul) { |
600 | struct linux_emuldata *pled; | | 600 | struct linux_emuldata *pled; |
601 | | | 601 | |
602 | pled = pp->p_emuldata; | | 602 | pled = pp->p_emuldata; |
603 | *retval = pled->s->group_pid; | | 603 | *retval = pled->s->group_pid; |
604 | } else { | | 604 | } else { |
605 | *retval = pp->p_pid; | | 605 | *retval = pp->p_pid; |
606 | } | | 606 | } |
607 | | | 607 | |
608 | } else { | | 608 | } else { |
609 | *retval = p->p_pptr->p_pid; | | 609 | *retval = p->p_pptr->p_pid; |
610 | } | | 610 | } |
611 | mutex_exit(proc_lock); | | 611 | mutex_exit(proc_lock); |
612 | | | 612 | |
613 | return 0; | | 613 | return 0; |
614 | } | | 614 | } |
615 | #endif /* LINUX_NPTL */ | | 615 | #endif /* LINUX_NPTL */ |
616 | | | 616 | |
617 | int | | 617 | int |
618 | linux_sys_sched_getaffinity(struct lwp *l, const struct linux_sys_sched_getaffinity_args *uap, register_t *retval) | | 618 | linux_sys_sched_getaffinity(struct lwp *l, const struct linux_sys_sched_getaffinity_args *uap, register_t *retval) |
619 | { | | 619 | { |
620 | /* { | | 620 | /* { |
621 | syscallarg(pid_t) pid; | | 621 | syscallarg(pid_t) pid; |
622 | syscallarg(unsigned int) len; | | 622 | syscallarg(unsigned int) len; |
623 | syscallarg(unsigned long *) mask; | | 623 | syscallarg(unsigned long *) mask; |
624 | } */ | | 624 | } */ |
625 | int error; | | 625 | int error; |
626 | int ret; | | 626 | int ret; |
627 | char *data; | | 627 | char *data; |
628 | int *retp; | | 628 | int *retp; |
629 | | | 629 | |
630 | if (SCARG(uap, mask) == NULL) | | 630 | if (SCARG(uap, mask) == NULL) |
631 | return EINVAL; | | 631 | return EINVAL; |
632 | | | 632 | |
633 | if (SCARG(uap, len) < sizeof(int)) | | 633 | if (SCARG(uap, len) < sizeof(int)) |
634 | return EINVAL; | | 634 | return EINVAL; |
635 | | | 635 | |
636 | if (pfind(SCARG(uap, pid)) == NULL) | | 636 | if (pfind(SCARG(uap, pid)) == NULL) |
637 | return ESRCH; | | 637 | return ESRCH; |
638 | | | 638 | |
639 | /* | | 639 | /* |
640 | * return the actual number of CPU, tag all of them as available | | 640 | * return the actual number of CPU, tag all of them as available |
641 | * The result is a mask, the first CPU being in the least significant | | 641 | * The result is a mask, the first CPU being in the least significant |
642 | * bit. | | 642 | * bit. |
643 | */ | | 643 | */ |
644 | ret = (1 << ncpu) - 1; | | 644 | ret = (1 << ncpu) - 1; |
645 | data = malloc(SCARG(uap, len), M_TEMP, M_WAITOK|M_ZERO); | | 645 | data = malloc(SCARG(uap, len), M_TEMP, M_WAITOK|M_ZERO); |
646 | retp = (int *)&data[SCARG(uap, len) - sizeof(ret)]; | | 646 | retp = (int *)&data[SCARG(uap, len) - sizeof(ret)]; |
647 | *retp = ret; | | 647 | *retp = ret; |
648 | | | 648 | |
649 | if ((error = copyout(data, SCARG(uap, mask), SCARG(uap, len))) != 0) | | 649 | error = copyout(data, SCARG(uap, mask), SCARG(uap, len)); |
650 | return error; | | | |
651 | | | 650 | |
652 | free(data, M_TEMP); | | 651 | free(data, M_TEMP); |
653 | | | 652 | |
654 | return 0; | | 653 | return error; |
655 | | | 654 | |
656 | } | | 655 | } |
657 | | | 656 | |
658 | int | | 657 | int |
659 | linux_sys_sched_setaffinity(struct lwp *l, const struct linux_sys_sched_setaffinity_args *uap, register_t *retval) | | 658 | linux_sys_sched_setaffinity(struct lwp *l, const struct linux_sys_sched_setaffinity_args *uap, register_t *retval) |
660 | { | | 659 | { |
661 | /* { | | 660 | /* { |
662 | syscallarg(pid_t) pid; | | 661 | syscallarg(pid_t) pid; |
663 | syscallarg(unsigned int) len; | | 662 | syscallarg(unsigned int) len; |
664 | syscallarg(unsigned long *) mask; | | 663 | syscallarg(unsigned long *) mask; |
665 | } */ | | 664 | } */ |
666 | | | 665 | |
667 | if (pfind(SCARG(uap, pid)) == NULL) | | 666 | if (pfind(SCARG(uap, pid)) == NULL) |
668 | return ESRCH; | | 667 | return ESRCH; |
669 | | | 668 | |
670 | /* Let's ignore it */ | | 669 | /* Let's ignore it */ |
671 | #ifdef DEBUG_LINUX | | 670 | #ifdef DEBUG_LINUX |
672 | printf("linux_sys_sched_setaffinity\n"); | | 671 | printf("linux_sys_sched_setaffinity\n"); |
673 | #endif | | 672 | #endif |
674 | return 0; | | 673 | return 0; |
675 | }; | | 674 | }; |
676 | #endif /* LINUX_NPTL */ | | 675 | #endif /* LINUX_NPTL */ |