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ae1f8880 TT |
1 | /* Internal interfaces for the Windows code |
2 | Copyright (C) 1995-2020 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GDB. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 3 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
18 | ||
19 | #ifndef NAT_WINDOWS_NAT_H | |
20 | #define NAT_WINDOWS_NAT_H | |
21 | ||
22 | #include <windows.h> | |
23 | ||
4834dad0 TT |
24 | namespace windows_nat |
25 | { | |
26 | ||
ae1f8880 TT |
27 | /* Thread information structure used to track extra information about |
28 | each thread. */ | |
29 | struct windows_thread_info | |
30 | { | |
e9534bd2 TT |
31 | windows_thread_info (DWORD tid_, HANDLE h_, CORE_ADDR tlb) |
32 | : tid (tid_), | |
33 | h (h_), | |
34 | thread_local_base (tlb) | |
35 | { | |
36 | } | |
37 | ||
65bafd5b TT |
38 | ~windows_thread_info (); |
39 | ||
e9534bd2 TT |
40 | DISABLE_COPY_AND_ASSIGN (windows_thread_info); |
41 | ||
98a03287 TT |
42 | /* Ensure that this thread has been suspended. */ |
43 | void suspend (); | |
44 | ||
45 | /* Resume the thread if it has been suspended. */ | |
46 | void resume (); | |
47 | ||
ae1f8880 TT |
48 | /* The Win32 thread identifier. */ |
49 | DWORD tid; | |
50 | ||
51 | /* The handle to the thread. */ | |
52 | HANDLE h; | |
53 | ||
54 | /* Thread Information Block address. */ | |
55 | CORE_ADDR thread_local_base; | |
56 | ||
62fe396b TT |
57 | /* This keeps track of whether SuspendThread was called on this |
58 | thread. -1 means there was a failure or that the thread was | |
59 | explicitly not suspended, 1 means it was called, and 0 means it | |
60 | was not. */ | |
e9534bd2 | 61 | int suspended = 0; |
ae1f8880 TT |
62 | |
63 | #ifdef _WIN32_WCE | |
64 | /* The context as retrieved right after suspending the thread. */ | |
e9534bd2 | 65 | CONTEXT base_context {}; |
ae1f8880 TT |
66 | #endif |
67 | ||
68 | /* The context of the thread, including any manipulations. */ | |
69 | union | |
70 | { | |
e9534bd2 | 71 | CONTEXT context {}; |
ae1f8880 TT |
72 | #ifdef __x86_64__ |
73 | WOW64_CONTEXT wow64_context; | |
74 | #endif | |
75 | }; | |
76 | ||
77 | /* Whether debug registers changed since we last set CONTEXT back to | |
78 | the thread. */ | |
62fe396b | 79 | bool debug_registers_changed = false; |
ae1f8880 TT |
80 | |
81 | /* Nonzero if CONTEXT is invalidated and must be re-read from the | |
82 | inferior thread. */ | |
62fe396b | 83 | bool reload_context = false; |
ae1f8880 | 84 | |
0a4afda3 TT |
85 | /* True if this thread is currently stopped at a software |
86 | breakpoint. This is used to offset the PC when needed. */ | |
87 | bool stopped_at_software_breakpoint = false; | |
88 | ||
ae1f8880 | 89 | /* The name of the thread, allocated by xmalloc. */ |
2950fdf7 | 90 | gdb::unique_xmalloc_ptr<char> name; |
ae1f8880 TT |
91 | }; |
92 | ||
28688adf TT |
93 | |
94 | /* Possible values to pass to 'thread_rec'. */ | |
95 | enum thread_disposition_type | |
96 | { | |
97 | /* Do not invalidate the thread's context, and do not suspend the | |
98 | thread. */ | |
99 | DONT_INVALIDATE_CONTEXT, | |
100 | /* Invalidate the context, but do not suspend the thread. */ | |
101 | DONT_SUSPEND, | |
102 | /* Invalidate the context and suspend the thread. */ | |
103 | INVALIDATE_CONTEXT | |
104 | }; | |
105 | ||
106 | /* Find a thread record given a thread id. THREAD_DISPOSITION | |
107 | controls whether the thread is suspended, and whether the context | |
108 | is invalidated. | |
109 | ||
110 | This function must be supplied by the embedding application. */ | |
111 | extern windows_thread_info *thread_rec (ptid_t ptid, | |
112 | thread_disposition_type disposition); | |
113 | ||
9d8679cc TT |
114 | /* Return the name of the DLL referenced by H at ADDRESS. UNICODE |
115 | determines what sort of string is read from the inferior. Returns | |
116 | the name of the DLL, or NULL on error. If a name is returned, it | |
117 | is stored in a static buffer which is valid until the next call to | |
118 | get_image_name. */ | |
119 | extern const char *get_image_name (HANDLE h, void *address, int unicode); | |
120 | ||
4834dad0 TT |
121 | } |
122 | ||
ae1f8880 | 123 | #endif |