0d12424fa8abc5c7b91a5b27be55a428c3173f5a
[deliverable/binutils-gdb.git] / gdb / config / nm-m3.h
1 /* Mach 3.0 common definitions and global vars.
2
3 Copyright (C) 1992 Free Software Foundation, Inc.
4
5 This file is part of GDB.
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
20
21 #ifndef _OS_MACH3_H_
22 #define _OS_MACH3_H
23
24 #include <mach.h>
25
26 /* Mach3 doesn't declare errno in <errno.h>. */
27 extern int errno;
28
29 /* Task port of our debugged inferior. */
30
31 extern task_t inferior_task;
32
33 /* Thread port of the current thread in the inferior. */
34
35 extern thread_t current_thread;
36
37 /* If nonzero, we must suspend/abort && resume threads
38 * when setting or getting the state.
39 */
40 extern int must_suspend_thread;
41
42 /* Startup the inferior task and suspend it after the correct code is loaded */
43
44 #define STARTUP_INFERIOR(x) intercept_exec_calls(x)
45
46 #define PREPARE_TO_PROCEED(select_it) mach3_prepare_to_proceed(select_it)
47
48 /* Try to get the privileged host port for authentication to machid
49 *
50 * If you can get this, you may debug anything on this host.
51 *
52 * If you can't, gdb gives it's own task port as the
53 * authentication port
54 */
55 #define mach_privileged_host_port() task_by_pid(-1)
56
57 /*
58 * This is the MIG ID number of the emulator/server bsd_execve() RPC call.
59 *
60 * It SHOULD never change, but if it does, gdb `run'
61 * command won't work until you fix this define.
62 *
63 */
64 #define MIG_EXEC_SYSCALL_ID 101000
65
66 /* If our_message_port gets a msg with this ID,
67 * GDB suspends it's inferior and enters command level.
68 * (Useful at least if ^C does not work)
69 */
70 #define GDB_MESSAGE_ID_STOP 0x41151
71
72 /* wait3 WNOHANG is defined in <sys/wait.h> but
73 * for some reason gdb does not want to include
74 * that file.
75 *
76 * If your system defines WNOHANG differently, this has to be changed.
77 */
78 #define WNOHANG 1
79
80 /* Before storing, we need to read all the registers. */
81
82 #define CHILD_PREPARE_TO_STORE() read_register_bytes (0, NULL, REGISTER_BYTES)
83
84 /* Check if the inferior exists */
85 #define MACH_ERROR_NO_INFERIOR \
86 do if (!MACH_PORT_VALID (inferior_task)) \
87 error ("Inferior task does not exist."); while(0)
88
89 /* Error handler for mach calls */
90 #define CHK(str,ret) \
91 do if (ret != KERN_SUCCESS) \
92 error ("Gdb %s [%d] %s : %s\n",__FILE__,__LINE__,str, \
93 mach_error_string(ret)); while(0)
94
95 /* This is from POE9 emulator/emul_stack.h
96 */
97 /*
98 * Top of emulator stack holds link and reply port.
99 */
100 struct emul_stack_top {
101 struct emul_stack_top *link;
102 mach_port_t reply_port;
103 };
104
105 #define EMULATOR_STACK_SIZE (4096*4)
106
107 #define THREAD_ALLOWED_TO_BREAK(mid) mach_thread_for_breakpoint (mid)
108
109 #define THREAD_PARSE_ID(arg) mach_thread_parse_id (arg)
110
111 #define THREAD_OUTPUT_ID(mid) mach_thread_output_id (mid)
112
113 #define ATTACH_TO_THREAD attach_to_thread
114
115 /* Do Mach 3 dependent operations when ^C or a STOP is requested */
116 #define DO_QUIT() mach3_quit ()
117
118 /* If in mach_msg() and ^C is typed set immediate_quit */
119 #define REQUEST_QUIT() mach3_request_quit ()
120
121 #endif /* _OS_MACH3_H_ */
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