1 /* Common things used by the various darwin files
2 Copyright (C) 1995-2014 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>
21 #include "common-utils.h" /* For FUNCTION_NAME. */
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
27 struct darwin_exception_info
29 /* Exceptions handled by the port. */
30 exception_mask_t masks[EXC_TYPES_COUNT];
32 /* Ports receiving exception messages. */
33 mach_port_t ports[EXC_TYPES_COUNT];
35 /* Type of messages sent. */
36 exception_behavior_t behaviors[EXC_TYPES_COUNT];
38 /* Type of state to be sent. */
39 thread_state_flavor_t flavors[EXC_TYPES_COUNT];
41 /* Number of elements set. */
42 mach_msg_type_number_t count;
44 typedef struct darwin_exception_info darwin_exception_info;
46 struct darwin_exception_msg
48 mach_msg_header_t header;
50 /* Thread and task taking the exception. */
51 mach_port_t thread_port;
52 mach_port_t task_port;
54 /* Type of the exception. */
55 exception_type_t ex_type;
57 /* Machine dependent details. */
58 mach_msg_type_number_t data_count;
64 /* The thread is running. */
67 /* The thread is stopped. */
70 /* The thread has sent a message and waits for a reply. */
74 struct private_thread_info
76 /* The thread port from a GDB point of view. */
79 /* The thread port from the inferior point of view. Not to be used inside
80 gdb except for get_ada_task_ptid. */
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;
88 /* True if this thread is single-stepped. */
89 unsigned char single_step;
91 /* True if a signal was manually sent to the thread. */
92 unsigned char signaled;
94 /* The last exception received. */
95 struct darwin_exception_msg event;
97 typedef struct private_thread_info darwin_thread_t;
99 /* Define the threads vector type. */
100 DEF_VEC_O (darwin_thread_t);
103 /* Describe an inferior. */
104 struct private_inferior
106 /* Corresponding task port. */
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;
113 /* Initial exception handling. */
114 darwin_exception_info exception_info;
116 /* Number of messages that have been received but not yet replied. */
117 unsigned int pending_messages;
119 /* Set if inferior is not controlled by ptrace(2) but through Mach. */
120 unsigned char no_ptrace;
122 /* True if this task is suspended. */
123 unsigned char suspended;
125 /* Sorted vector of known threads. */
126 VEC(darwin_thread_t) *threads;
128 typedef struct private_inferior darwin_inferior;
130 /* Exception port. */
131 extern mach_port_t darwin_ex_port;
134 extern mach_port_t darwin_port_set;
136 /* A copy of mach_host_self (). */
137 extern mach_port_t darwin_host_self;
139 /* FUNCTION_NAME is defined in common-utils.h (or not). */
141 #define MACH_CHECK_ERROR(ret) \
142 mach_check_error (ret, __FILE__, __LINE__, FUNCTION_NAME)
144 #define MACH_CHECK_ERROR(ret) \
145 mach_check_error (ret, __FILE__, __LINE__, "??")
148 extern void mach_check_error (kern_return_t ret, const char *file,
149 unsigned int line, const char *func);
151 void darwin_set_sstep (thread_t thread, int enable);
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. */
156 extern void darwin_complete_target (struct target_ops *target);
158 void darwin_check_osabi (darwin_inferior *inf, thread_t thread);
160 #endif /* __DARWIN_NAT_H__ */