| 1 | /* Common things used by the various darwin files |
| 2 | Copyright (C) 1995-2014 Free Software Foundation, Inc. |
| 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 |
| 15 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 16 | |
| 17 | #ifndef __DARWIN_NAT_H__ |
| 18 | #define __DARWIN_NAT_H__ |
| 19 | |
| 20 | #include <mach/mach.h> |
| 21 | #include "common-utils.h" /* For FUNCTION_NAME. */ |
| 22 | |
| 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. */ |
| 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 | }; |
| 44 | typedef struct darwin_exception_info darwin_exception_info; |
| 45 | |
| 46 | struct darwin_exception_msg |
| 47 | { |
| 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 | |
| 62 | enum 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 | }; |
| 73 | |
| 74 | struct 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; |
| 90 | |
| 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 | }; |
| 97 | typedef struct private_thread_info darwin_thread_t; |
| 98 | |
| 99 | /* Define the threads vector type. */ |
| 100 | DEF_VEC_O (darwin_thread_t); |
| 101 | |
| 102 | |
| 103 | /* Describe an inferior. */ |
| 104 | struct private_inferior |
| 105 | { |
| 106 | /* Corresponding task port. */ |
| 107 | task_t task; |
| 108 | |
| 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; |
| 112 | |
| 113 | /* Initial exception handling. */ |
| 114 | darwin_exception_info exception_info; |
| 115 | |
| 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 | |
| 125 | /* Sorted vector of known threads. */ |
| 126 | VEC(darwin_thread_t) *threads; |
| 127 | }; |
| 128 | typedef struct private_inferior darwin_inferior; |
| 129 | |
| 130 | /* Exception port. */ |
| 131 | extern mach_port_t darwin_ex_port; |
| 132 | |
| 133 | /* Port set. */ |
| 134 | extern mach_port_t darwin_port_set; |
| 135 | |
| 136 | /* A copy of mach_host_self (). */ |
| 137 | extern mach_port_t darwin_host_self; |
| 138 | |
| 139 | /* FUNCTION_NAME is defined in common-utils.h (or not). */ |
| 140 | #ifdef FUNCTION_NAME |
| 141 | #define MACH_CHECK_ERROR(ret) \ |
| 142 | mach_check_error (ret, __FILE__, __LINE__, FUNCTION_NAME) |
| 143 | #else |
| 144 | #define MACH_CHECK_ERROR(ret) \ |
| 145 | mach_check_error (ret, __FILE__, __LINE__, "??") |
| 146 | #endif |
| 147 | |
| 148 | extern void mach_check_error (kern_return_t ret, const char *file, |
| 149 | unsigned int line, const char *func); |
| 150 | |
| 151 | void 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. */ |
| 156 | extern void darwin_complete_target (struct target_ops *target); |
| 157 | |
| 158 | void darwin_check_osabi (darwin_inferior *inf, thread_t thread); |
| 159 | |
| 160 | #endif /* __DARWIN_NAT_H__ */ |