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a80b95ba 1/* Common things used by the various darwin files
ecd75fc8 2 Copyright (C) 1995-2014 Free Software Foundation, Inc.
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3
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3 of the License, or
7 (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
47d48711 15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
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16
17#ifndef __DARWIN_NAT_H__
18#define __DARWIN_NAT_H__
19
20#include <mach/mach.h>
21#include "gdb_assert.h"
22
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23/* Describe the mach exception handling state for a task. This state is saved
24 before being changed and restored when a process is detached.
25 For more information on these fields see task_get_exception_ports manual
26 page. */
27struct darwin_exception_info
28{
29 /* Exceptions handled by the port. */
30 exception_mask_t masks[EXC_TYPES_COUNT];
31
32 /* Ports receiving exception messages. */
33 mach_port_t ports[EXC_TYPES_COUNT];
34
35 /* Type of messages sent. */
36 exception_behavior_t behaviors[EXC_TYPES_COUNT];
37
38 /* Type of state to be sent. */
39 thread_state_flavor_t flavors[EXC_TYPES_COUNT];
40
41 /* Number of elements set. */
42 mach_msg_type_number_t count;
43};
44typedef struct darwin_exception_info darwin_exception_info;
45
bb00b29d 46struct darwin_exception_msg
a80b95ba 47{
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48 mach_msg_header_t header;
49
50 /* Thread and task taking the exception. */
51 mach_port_t thread_port;
52 mach_port_t task_port;
53
54 /* Type of the exception. */
55 exception_type_t ex_type;
56
57 /* Machine dependent details. */
58 mach_msg_type_number_t data_count;
59 integer_t ex_data[2];
60};
61
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62enum darwin_msg_state
63{
64 /* The thread is running. */
65 DARWIN_RUNNING,
66
67 /* The thread is stopped. */
68 DARWIN_STOPPED,
69
70 /* The thread has sent a message and waits for a reply. */
71 DARWIN_MESSAGE
72};
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73
74struct private_thread_info
75{
76 /* The thread port from a GDB point of view. */
77 thread_t gdb_port;
78
79 /* The thread port from the inferior point of view. Not to be used inside
80 gdb except for get_ada_task_ptid. */
81 thread_t inf_port;
82
83 /* Current message state.
84 If the kernel has sent a message it expects a reply and the inferior
85 can't be killed before. */
86 enum darwin_msg_state msg_state;
87
88 /* True if this thread is single-stepped. */
89 unsigned char single_step;
a80b95ba 90
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91 /* True if a signal was manually sent to the thread. */
92 unsigned char signaled;
93
94 /* The last exception received. */
95 struct darwin_exception_msg event;
96};
97typedef struct private_thread_info darwin_thread_t;
98
99/* Define the threads vector type. */
100DEF_VEC_O (darwin_thread_t);
101
102
103/* Describe an inferior. */
104struct private_inferior
105{
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106 /* Corresponding task port. */
107 task_t task;
108
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109 /* Port which will receive the dead-name notification for the task port.
110 This is used to detect the death of the task. */
111 mach_port_t notify_port;
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112
113 /* Initial exception handling. */
114 darwin_exception_info exception_info;
115
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116 /* Number of messages that have been received but not yet replied. */
117 unsigned int pending_messages;
118
119 /* Set if inferior is not controlled by ptrace(2) but through Mach. */
120 unsigned char no_ptrace;
121
122 /* True if this task is suspended. */
123 unsigned char suspended;
124
a80b95ba 125 /* Sorted vector of known threads. */
bb00b29d 126 VEC(darwin_thread_t) *threads;
a80b95ba 127};
bb00b29d 128typedef struct private_inferior darwin_inferior;
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129
130/* Exception port. */
131extern mach_port_t darwin_ex_port;
132
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133/* Port set. */
134extern mach_port_t darwin_port_set;
135
136/* A copy of mach_host_self (). */
137extern mach_port_t darwin_host_self;
138
139/* ASSERT_FUNCTION is defined in gdb_assert.h (or not). */
140#ifdef ASSERT_FUNCTION
141#define MACH_CHECK_ERROR(ret) \
142 mach_check_error (ret, __FILE__, __LINE__, ASSERT_FUNCTION)
143#else
144#define MACH_CHECK_ERROR(ret) \
145 mach_check_error (ret, __FILE__, __LINE__, "??")
146#endif
147
148extern void mach_check_error (kern_return_t ret, const char *file,
149 unsigned int line, const char *func);
150
151void darwin_set_sstep (thread_t thread, int enable);
152
153/* This one is called in darwin-nat.c, but needs to be provided by the
154 platform specific nat code. It allows each platform to add platform specific
155 stuff to the darwin_ops. */
156extern void darwin_complete_target (struct target_ops *target);
157
158void darwin_check_osabi (darwin_inferior *inf, thread_t thread);
159
160#endif /* __DARWIN_NAT_H__ */