1 /* Common things used by the various darwin files
2 Copyright (C) 1995-2017 Free Software Foundation, Inc.
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.
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.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
17 #ifndef __DARWIN_NAT_H__
18 #define __DARWIN_NAT_H__
20 #include <mach/mach.h>
22 /* Describe the mach exception handling state for a task. This state is saved
23 before being changed and restored when a process is detached.
24 For more information on these fields see task_get_exception_ports manual
26 struct darwin_exception_info
28 /* Exceptions handled by the port. */
29 exception_mask_t masks[EXC_TYPES_COUNT];
31 /* Ports receiving exception messages. */
32 mach_port_t ports[EXC_TYPES_COUNT];
34 /* Type of messages sent. */
35 exception_behavior_t behaviors[EXC_TYPES_COUNT];
37 /* Type of state to be sent. */
38 thread_state_flavor_t flavors[EXC_TYPES_COUNT];
40 /* Number of elements set. */
41 mach_msg_type_number_t count;
43 typedef struct darwin_exception_info darwin_exception_info;
45 struct darwin_exception_msg
47 mach_msg_header_t header;
49 /* Thread and task taking the exception. */
50 mach_port_t thread_port;
51 mach_port_t task_port;
53 /* Type of the exception. */
54 exception_type_t ex_type;
56 /* Machine dependent details. */
57 mach_msg_type_number_t data_count;
63 /* The thread is running. */
66 /* The thread is stopped. */
69 /* The thread has sent a message and waits for a reply. */
73 struct private_thread_info
75 /* The thread port from a GDB point of view. */
78 /* The thread port from the inferior point of view. Not to be used inside
79 gdb except for get_ada_task_ptid. */
82 /* Current message state.
83 If the kernel has sent a message it expects a reply and the inferior
84 can't be killed before. */
85 enum darwin_msg_state msg_state;
87 /* True if this thread is single-stepped. */
88 unsigned char single_step;
90 /* True if a signal was manually sent to the thread. */
91 unsigned char signaled;
93 /* The last exception received. */
94 struct darwin_exception_msg event;
96 typedef struct private_thread_info darwin_thread_t;
98 /* Define the threads vector type. */
99 DEF_VEC_O (darwin_thread_t);
102 /* Describe an inferior. */
103 struct private_inferior
105 /* Corresponding task port. */
108 /* Port which will receive the dead-name notification for the task port.
109 This is used to detect the death of the task. */
110 mach_port_t notify_port;
112 /* Initial exception handling. */
113 darwin_exception_info exception_info;
115 /* Number of messages that have been received but not yet replied. */
116 unsigned int pending_messages;
118 /* Set if inferior is not controlled by ptrace(2) but through Mach. */
119 unsigned char no_ptrace;
121 /* True if this task is suspended. */
122 unsigned char suspended;
124 /* Sorted vector of known threads. */
125 VEC(darwin_thread_t) *threads;
127 typedef struct private_inferior darwin_inferior;
129 /* Exception port. */
130 extern mach_port_t darwin_ex_port;
133 extern mach_port_t darwin_port_set;
135 /* A copy of mach_host_self (). */
136 extern mach_port_t darwin_host_self;
138 /* FUNCTION_NAME is defined in common-utils.h (or not). */
140 #define MACH_CHECK_ERROR(ret) \
141 mach_check_error (ret, __FILE__, __LINE__, FUNCTION_NAME)
143 #define MACH_CHECK_ERROR(ret) \
144 mach_check_error (ret, __FILE__, __LINE__, "??")
147 extern void mach_check_error (kern_return_t ret, const char *file,
148 unsigned int line, const char *func);
150 void darwin_set_sstep (thread_t thread, int enable);
152 /* This one is called in darwin-nat.c, but needs to be provided by the
153 platform specific nat code. It allows each platform to add platform specific
154 stuff to the darwin_ops. */
155 extern void darwin_complete_target (struct target_ops *target);
157 void darwin_check_osabi (darwin_inferior *inf, thread_t thread);
159 #endif /* __DARWIN_NAT_H__ */