1 /* Common things used by the various darwin files
2 Copyright (C) 1995, 1996, 1997, 1999, 2000, 2007, 2008, 2009, 2010, 2011
3 Free Software Foundation, Inc.
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 3 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
19 #ifndef __DARWIN_NAT_H__
20 #define __DARWIN_NAT_H__
22 #include <mach/mach.h>
23 #include "gdb_assert.h"
25 /* Describe the mach exception handling state for a task. This state is saved
26 before being changed and restored when a process is detached.
27 For more information on these fields see task_get_exception_ports manual
29 struct darwin_exception_info
31 /* Exceptions handled by the port. */
32 exception_mask_t masks[EXC_TYPES_COUNT];
34 /* Ports receiving exception messages. */
35 mach_port_t ports[EXC_TYPES_COUNT];
37 /* Type of messages sent. */
38 exception_behavior_t behaviors[EXC_TYPES_COUNT];
40 /* Type of state to be sent. */
41 thread_state_flavor_t flavors[EXC_TYPES_COUNT];
43 /* Number of elements set. */
44 mach_msg_type_number_t count;
46 typedef struct darwin_exception_info darwin_exception_info;
48 struct darwin_exception_msg
50 mach_msg_header_t header;
52 /* Thread and task taking the exception. */
53 mach_port_t thread_port;
54 mach_port_t task_port;
56 /* Type of the exception. */
57 exception_type_t ex_type;
59 /* Machine dependent details. */
60 mach_msg_type_number_t data_count;
64 enum darwin_msg_state { DARWIN_RUNNING, DARWIN_STOPPED, DARWIN_MESSAGE };
66 struct private_thread_info
68 /* The thread port from a GDB point of view. */
71 /* The thread port from the inferior point of view. Not to be used inside
72 gdb except for get_ada_task_ptid. */
75 /* Current message state.
76 If the kernel has sent a message it expects a reply and the inferior
77 can't be killed before. */
78 enum darwin_msg_state msg_state;
80 /* True if this thread is single-stepped. */
81 unsigned char single_step;
83 /* True if a signal was manually sent to the thread. */
84 unsigned char signaled;
86 /* The last exception received. */
87 struct darwin_exception_msg event;
89 typedef struct private_thread_info darwin_thread_t;
91 /* Define the threads vector type. */
92 DEF_VEC_O (darwin_thread_t);
95 /* Describe an inferior. */
96 struct private_inferior
98 /* Corresponding task port. */
101 /* Port which will receive the dead-name notification for the task port.
102 This is used to detect the death of the task. */
103 mach_port_t notify_port;
105 /* Initial exception handling. */
106 darwin_exception_info exception_info;
108 /* Number of messages that have been received but not yet replied. */
109 unsigned int pending_messages;
111 /* Set if inferior is not controlled by ptrace(2) but through Mach. */
112 unsigned char no_ptrace;
114 /* True if this task is suspended. */
115 unsigned char suspended;
117 /* Sorted vector of known threads. */
118 VEC(darwin_thread_t) *threads;
120 typedef struct private_inferior darwin_inferior;
122 /* Exception port. */
123 extern mach_port_t darwin_ex_port;
126 extern mach_port_t darwin_port_set;
128 /* A copy of mach_host_self (). */
129 extern mach_port_t darwin_host_self;
131 /* ASSERT_FUNCTION is defined in gdb_assert.h (or not). */
132 #ifdef ASSERT_FUNCTION
133 #define MACH_CHECK_ERROR(ret) \
134 mach_check_error (ret, __FILE__, __LINE__, ASSERT_FUNCTION)
136 #define MACH_CHECK_ERROR(ret) \
137 mach_check_error (ret, __FILE__, __LINE__, "??")
140 extern void mach_check_error (kern_return_t ret, const char *file,
141 unsigned int line, const char *func);
143 void darwin_set_sstep (thread_t thread, int enable);
145 /* This one is called in darwin-nat.c, but needs to be provided by the
146 platform specific nat code. It allows each platform to add platform specific
147 stuff to the darwin_ops. */
148 extern void darwin_complete_target (struct target_ops *target);
150 void darwin_check_osabi (darwin_inferior *inf, thread_t thread);
152 #endif /* __DARWIN_NAT_H__ */