6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26 #pragma ident "%Z%%M% %I% %E% SMI"
27
28 #include <sys/cpuvar.h>
29 #include <sys/kdi_impl.h>
30 #include <sys/reboot.h>
31 #include <sys/errno.h>
32 #include <sys/atomic.h>
33 #include <sys/kmem.h>
34
35 kdi_debugvec_t *kdi_dvec;
36 struct modctl *kdi_dmods;
37
38 static kdi_dtrace_state_t kdi_dtrace_state = KDI_DTSTATE_IDLE;
39
40 void
41 kdi_dvec_vmready(void)
42 {
43 kdi_dvec->dv_kctl_vmready();
44 kdi_dvec->dv_vmready();
45 }
46
47 void
134 return (0);
135 new = KDI_DTSTATE_IDLE;
136 break;
137 case KDI_DTSET_KMDB_BPT_ACTIVATE:
138 if (cur == KDI_DTSTATE_DTRACE_ACTIVE)
139 return (EBUSY);
140 if (cur == KDI_DTSTATE_KMDB_BPT_ACTIVE)
141 return (0);
142 new = KDI_DTSTATE_KMDB_BPT_ACTIVE;
143 break;
144 case KDI_DTSET_KMDB_BPT_DEACTIVATE:
145 if (cur == KDI_DTSTATE_DTRACE_ACTIVE)
146 return (EBUSY);
147 if (cur == KDI_DTSTATE_IDLE)
148 return (0);
149 new = KDI_DTSTATE_IDLE;
150 break;
151 default:
152 return (EINVAL);
153 }
154 } while (cas32((uint_t *)&kdi_dtrace_state, cur, new) != cur);
155
156 return (0);
157 }
|
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26 #include <sys/cpuvar.h>
27 #include <sys/kdi_impl.h>
28 #include <sys/reboot.h>
29 #include <sys/errno.h>
30 #include <sys/atomic.h>
31 #include <sys/kmem.h>
32
33 kdi_debugvec_t *kdi_dvec;
34 struct modctl *kdi_dmods;
35
36 static kdi_dtrace_state_t kdi_dtrace_state = KDI_DTSTATE_IDLE;
37
38 void
39 kdi_dvec_vmready(void)
40 {
41 kdi_dvec->dv_kctl_vmready();
42 kdi_dvec->dv_vmready();
43 }
44
45 void
132 return (0);
133 new = KDI_DTSTATE_IDLE;
134 break;
135 case KDI_DTSET_KMDB_BPT_ACTIVATE:
136 if (cur == KDI_DTSTATE_DTRACE_ACTIVE)
137 return (EBUSY);
138 if (cur == KDI_DTSTATE_KMDB_BPT_ACTIVE)
139 return (0);
140 new = KDI_DTSTATE_KMDB_BPT_ACTIVE;
141 break;
142 case KDI_DTSET_KMDB_BPT_DEACTIVATE:
143 if (cur == KDI_DTSTATE_DTRACE_ACTIVE)
144 return (EBUSY);
145 if (cur == KDI_DTSTATE_IDLE)
146 return (0);
147 new = KDI_DTSTATE_IDLE;
148 break;
149 default:
150 return (EINVAL);
151 }
152 } while (atomic_cas_32((uint_t *)&kdi_dtrace_state, cur, new) != cur);
153
154 return (0);
155 }
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