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1.1 root 1: /*
2: * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
3: *
4: * @APPLE_LICENSE_HEADER_START@
5: *
6: * The contents of this file constitute Original Code as defined in and
7: * are subject to the Apple Public Source License Version 1.1 (the
8: * "License"). You may not use this file except in compliance with the
9: * License. Please obtain a copy of the License at
10: * http://www.apple.com/publicsource and read it before using this file.
11: *
12: * This Original Code and all software distributed under the License are
13: * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
14: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
15: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
16: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
17: * License for the specific language governing rights and limitations
18: * under the License.
19: *
20: * @APPLE_LICENSE_HEADER_END@
21: */
22: /*
23: * @OSF_COPYRIGHT@
24: */
25: /*
26: * HISTORY
27: *
28: * Revision 1.1.1.1 1998/09/22 21:05:48 wsanchez
29: * Import of Mac OS X kernel (~semeria)
30: *
31: * Revision 1.1.1.1 1998/03/07 02:26:09 wsanchez
32: * Import of OSF Mach kernel (~mburg)
33: *
34: * Revision 1.1.9.1 1994/09/23 01:22:09 ezf
35: * change marker to not FREE
36: * [1994/09/22 21:11:13 ezf]
37: *
38: * Revision 1.1.7.4 1994/03/17 22:35:38 dwm
39: * The infamous name change: thread_activation + thread_shuttle = thread.
40: * [1994/03/17 21:25:53 dwm]
41: *
42: * Revision 1.1.7.3 1994/02/03 21:44:27 bolinger
43: * Change a surviving current_thread() to current_act().
44: * [1994/02/03 20:48:03 bolinger]
45: *
46: * Revision 1.1.7.2 1994/01/12 17:50:56 dwm
47: * Coloc: initial restructuring to follow Utah model.
48: * [1994/01/12 17:13:27 dwm]
49: *
50: * Revision 1.1.7.1 1994/01/05 19:28:18 bolinger
51: * Separate notions of "address space" and "task" (i.e., symbol table),
52: * via new macros db_current_space() and db_is_current_space(); also update
53: * db_target_space() to treat kernel-loaded tasks correctly.
54: * [1994/01/04 17:41:47 bolinger]
55: *
56: * Revision 1.1.2.4 1993/07/27 18:28:17 elliston
57: * Add ANSI prototypes. CR #9523.
58: * [1993/07/27 18:13:10 elliston]
59: *
60: * Revision 1.1.2.3 1993/06/07 22:06:58 jeffc
61: * CR9176 - ANSI C violations: trailing tokens on CPP
62: * directives, extra semicolons after decl_ ..., asm keywords
63: * [1993/06/07 18:57:35 jeffc]
64: *
65: * Revision 1.1.2.2 1993/06/02 23:12:46 jeffc
66: * Added to OSF/1 R1.3 from NMK15.0.
67: * [1993/06/02 20:57:32 jeffc]
68: *
69: * Revision 1.1 1992/09/30 02:24:23 robert
70: * Initial revision
71: *
72: * $EndLog$
73: */
74: /* CMU_HIST */
75: /*
76: * Revision 2.2 91/10/09 16:03:18 af
77: * Revision 2.1.3.1 91/10/05 13:08:07 jeffreyh
78: * Created for task/thread handling.
79: * [91/08/29 tak]
80: *
81: * Revision 2.1.3.1 91/10/05 13:08:07 jeffreyh
82: * Created for task/thread handling.
83: * [91/08/29 tak]
84: *
85: */
86: /* CMU_ENDHIST */
87: /*
88: * Mach Operating System
89: * Copyright (c) 1991,1990 Carnegie Mellon University
90: * All Rights Reserved.
91: *
92: * Permission to use, copy, modify and distribute this software and its
93: * documentation is hereby granted, provided that both the copyright
94: * notice and this permission notice appear in all copies of the
95: * software, derivative works or modified versions, and any portions
96: * thereof, and that both notices appear in supporting documentation.
97: *
98: * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
99: * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
100: * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
101: *
102: * Carnegie Mellon requests users of this software to return to
103: *
104: * Software Distribution Coordinator or [email protected]
105: * School of Computer Science
106: * Carnegie Mellon University
107: * Pittsburgh PA 15213-3890
108: *
109: * any improvements or extensions that they make and grant Carnegie Mellon
110: * the rights to redistribute these changes.
111: */
112: /*
113: */
114:
115: #ifndef _DDB_DB_TASK_THREAD_H_
116: #define _DDB_DB_TASK_THREAD_H_
117:
118: #include <kern/task.h>
119: #include <kern/thread.h>
120: #include <kern/processor.h>
121: #include <ddb/db_variables.h> /* For db_var_aux_param_t */
122:
123: /*
124: * On behalf of kernel-loaded tasks, distinguish between current task
125: * (=> symbol table) and current address space (=> where [e.g.]
126: * breakpoints are set). From ddb's perspective, kernel-loaded tasks
127: * can retain their own symbol tables, but share the kernel's address
128: * space.
129: */
130: #define db_current_task() \
131: ((current_act())? current_act()->task: TASK_NULL)
132: #define db_current_space() \
133: ((current_act() && !current_act()->kernel_loaded)?\
134: current_act()->task: TASK_NULL)
135: #define db_target_space(thr_act, user_space) \
136: ((!(user_space) || ((thr_act) && (thr_act)->kernel_loaded))?\
137: TASK_NULL: \
138: (thr_act)? \
139: (thr_act)->task: db_current_space())
140: #define db_is_current_space(task) \
141: ((task) == TASK_NULL || (task) == db_current_space())
142:
143: extern task_t db_default_task; /* default target task */
144: extern thread_act_t db_default_act; /* default target thr_act */
145:
146:
147: /* Prototypes for functions exported by this module.
148: */
149:
150: int db_lookup_act(thread_act_t target_act);
151:
152: int db_lookup_task(task_t target_task);
153:
154: int db_lookup_task_act(
155: task_t task,
156: thread_act_t target_act);
157:
158: boolean_t db_check_act_address_valid(thread_act_t thr_act);
159:
160: boolean_t db_get_next_act(
161: thread_act_t *actp,
162: int position);
163:
164: void db_init_default_act(void);
165:
166: int db_set_default_act(
167: struct db_variable *vp,
168: db_expr_t *valuep,
169: int flag,
170: db_var_aux_param_t ap);
171:
172: int db_get_task_act(
173: struct db_variable *vp,
174: db_expr_t *valuep,
175: int flag,
176: db_var_aux_param_t ap);
177:
178: #endif /* !_DDB_DB_TASK_THREAD_H_ */
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