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a80b95ba | 1 | /* Common things used by the various darwin files |
e2882c85 | 2 | Copyright (C) 1995-2018 Free Software Foundation, Inc. |
a80b95ba TG |
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/>. */ |
a80b95ba TG |
16 | |
17 | #ifndef __DARWIN_NAT_H__ | |
18 | #define __DARWIN_NAT_H__ | |
19 | ||
20 | #include <mach/mach.h> | |
7aabaf9d | 21 | #include "gdbthread.h" |
a80b95ba | 22 | |
a80b95ba TG |
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. */ | |
27 | struct darwin_exception_info | |
28 | { | |
29 | /* Exceptions handled by the port. */ | |
089354bb | 30 | exception_mask_t masks[EXC_TYPES_COUNT] {}; |
a80b95ba TG |
31 | |
32 | /* Ports receiving exception messages. */ | |
089354bb | 33 | mach_port_t ports[EXC_TYPES_COUNT] {}; |
a80b95ba TG |
34 | |
35 | /* Type of messages sent. */ | |
089354bb | 36 | exception_behavior_t behaviors[EXC_TYPES_COUNT] {}; |
a80b95ba TG |
37 | |
38 | /* Type of state to be sent. */ | |
089354bb | 39 | thread_state_flavor_t flavors[EXC_TYPES_COUNT] {}; |
a80b95ba TG |
40 | |
41 | /* Number of elements set. */ | |
089354bb | 42 | mach_msg_type_number_t count = 0; |
a80b95ba | 43 | }; |
a80b95ba | 44 | |
bb00b29d | 45 | struct darwin_exception_msg |
a80b95ba | 46 | { |
bb00b29d TG |
47 | mach_msg_header_t header; |
48 | ||
49 | /* Thread and task taking the exception. */ | |
50 | mach_port_t thread_port; | |
51 | mach_port_t task_port; | |
52 | ||
53 | /* Type of the exception. */ | |
54 | exception_type_t ex_type; | |
55 | ||
56 | /* Machine dependent details. */ | |
57 | mach_msg_type_number_t data_count; | |
58 | integer_t ex_data[2]; | |
59 | }; | |
60 | ||
637fd620 TG |
61 | enum darwin_msg_state |
62 | { | |
63 | /* The thread is running. */ | |
64 | DARWIN_RUNNING, | |
65 | ||
66 | /* The thread is stopped. */ | |
67 | DARWIN_STOPPED, | |
68 | ||
69 | /* The thread has sent a message and waits for a reply. */ | |
70 | DARWIN_MESSAGE | |
71 | }; | |
bb00b29d | 72 | |
7aabaf9d | 73 | struct darwin_thread_info : public private_thread_info |
bb00b29d TG |
74 | { |
75 | /* The thread port from a GDB point of view. */ | |
76 | thread_t gdb_port; | |
77 | ||
78 | /* The thread port from the inferior point of view. Not to be used inside | |
79 | gdb except for get_ada_task_ptid. */ | |
80 | thread_t inf_port; | |
81 | ||
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; | |
86 | ||
87 | /* True if this thread is single-stepped. */ | |
88 | unsigned char single_step; | |
a80b95ba | 89 | |
bb00b29d TG |
90 | /* True if a signal was manually sent to the thread. */ |
91 | unsigned char signaled; | |
92 | ||
93 | /* The last exception received. */ | |
94 | struct darwin_exception_msg event; | |
95 | }; | |
7aabaf9d SM |
96 | typedef struct darwin_thread_info darwin_thread_t; |
97 | ||
98 | static inline darwin_thread_info * | |
99 | get_darwin_thread_info (class thread_info *thread) | |
100 | { | |
101 | return static_cast<darwin_thread_info *> (thread->priv.get ()); | |
102 | } | |
bb00b29d | 103 | |
bb00b29d | 104 | /* Describe an inferior. */ |
089354bb | 105 | struct darwin_inferior : public private_inferior |
bb00b29d | 106 | { |
a80b95ba | 107 | /* Corresponding task port. */ |
089354bb | 108 | task_t task = 0; |
a80b95ba | 109 | |
bb00b29d TG |
110 | /* Port which will receive the dead-name notification for the task port. |
111 | This is used to detect the death of the task. */ | |
089354bb | 112 | mach_port_t notify_port = 0; |
a80b95ba TG |
113 | |
114 | /* Initial exception handling. */ | |
115 | darwin_exception_info exception_info; | |
116 | ||
bb00b29d | 117 | /* Number of messages that have been received but not yet replied. */ |
089354bb | 118 | unsigned int pending_messages = 0; |
bb00b29d TG |
119 | |
120 | /* Set if inferior is not controlled by ptrace(2) but through Mach. */ | |
089354bb | 121 | bool no_ptrace = false; |
bb00b29d TG |
122 | |
123 | /* True if this task is suspended. */ | |
089354bb | 124 | bool suspended = false; |
bb00b29d | 125 | |
a80b95ba | 126 | /* Sorted vector of known threads. */ |
089354bb | 127 | std::vector<darwin_thread_t *> threads; |
a80b95ba | 128 | }; |
089354bb SM |
129 | |
130 | /* Return the darwin_inferior attached to INF. */ | |
131 | ||
132 | static inline darwin_inferior * | |
133 | get_darwin_inferior (inferior *inf) | |
134 | { | |
135 | return static_cast<darwin_inferior *> (inf->priv.get ()); | |
136 | } | |
a80b95ba TG |
137 | |
138 | /* Exception port. */ | |
139 | extern mach_port_t darwin_ex_port; | |
140 | ||
a80b95ba TG |
141 | /* Port set. */ |
142 | extern mach_port_t darwin_port_set; | |
143 | ||
144 | /* A copy of mach_host_self (). */ | |
145 | extern mach_port_t darwin_host_self; | |
146 | ||
df049a58 DE |
147 | /* FUNCTION_NAME is defined in common-utils.h (or not). */ |
148 | #ifdef FUNCTION_NAME | |
a80b95ba | 149 | #define MACH_CHECK_ERROR(ret) \ |
df049a58 | 150 | mach_check_error (ret, __FILE__, __LINE__, FUNCTION_NAME) |
a80b95ba TG |
151 | #else |
152 | #define MACH_CHECK_ERROR(ret) \ | |
153 | mach_check_error (ret, __FILE__, __LINE__, "??") | |
154 | #endif | |
155 | ||
156 | extern void mach_check_error (kern_return_t ret, const char *file, | |
157 | unsigned int line, const char *func); | |
158 | ||
159 | void darwin_set_sstep (thread_t thread, int enable); | |
160 | ||
161 | /* This one is called in darwin-nat.c, but needs to be provided by the | |
162 | platform specific nat code. It allows each platform to add platform specific | |
163 | stuff to the darwin_ops. */ | |
164 | extern void darwin_complete_target (struct target_ops *target); | |
165 | ||
166 | void darwin_check_osabi (darwin_inferior *inf, thread_t thread); | |
167 | ||
168 | #endif /* __DARWIN_NAT_H__ */ |