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236ef034 PA |
1 | /* RAII type to create a temporary mock context. |
2 | ||
213516ef | 3 | Copyright (C) 2020-2023 Free Software Foundation, Inc. |
236ef034 PA |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #ifndef SCOPED_MOCK_CONTEXT_H | |
21 | #define SCOPED_MOCK_CONTEXT_H | |
22 | ||
23 | #include "inferior.h" | |
24 | #include "gdbthread.h" | |
25 | #include "progspace.h" | |
26 | #include "progspace-and-thread.h" | |
27 | ||
28 | #if GDB_SELF_TEST | |
29 | namespace selftests { | |
30 | ||
31 | /* RAII type to create (and switch to) a temporary mock context. An | |
32 | inferior with a thread, with a process_stratum target pushed. */ | |
33 | ||
34 | template<typename Target> | |
35 | struct scoped_mock_context | |
36 | { | |
37 | /* Order here is important. */ | |
38 | ||
39 | Target mock_target; | |
40 | ptid_t mock_ptid {1, 1}; | |
f9582a22 | 41 | program_space mock_pspace {new_address_space ()}; |
236ef034 PA |
42 | inferior mock_inferior {mock_ptid.pid ()}; |
43 | thread_info mock_thread {&mock_inferior, mock_ptid}; | |
44 | ||
45 | scoped_restore_current_pspace_and_thread restore_pspace_thread; | |
46 | ||
236ef034 PA |
47 | explicit scoped_mock_context (gdbarch *gdbarch) |
48 | { | |
08bdefb5 PA |
49 | /* Add the mock inferior to the inferior list so that look ups by |
50 | target+ptid can find it. */ | |
51 | inferior_list.push_back (mock_inferior); | |
52 | ||
bf809310 | 53 | mock_inferior.thread_list.push_back (mock_thread); |
922cc93d | 54 | mock_inferior.ptid_thread_map[mock_ptid] = &mock_thread; |
27b1f19f | 55 | mock_inferior.set_arch (gdbarch); |
236ef034 PA |
56 | mock_inferior.aspace = mock_pspace.aspace; |
57 | mock_inferior.pspace = &mock_pspace; | |
58 | ||
59 | /* Switch to the mock inferior. */ | |
60 | switch_to_inferior_no_thread (&mock_inferior); | |
61 | ||
62 | /* Push the process_stratum target so we can mock accessing | |
63 | registers. */ | |
64 | gdb_assert (mock_target.stratum () == process_stratum); | |
02980c56 | 65 | mock_inferior.push_target (&mock_target); |
236ef034 PA |
66 | |
67 | /* Switch to the mock thread. */ | |
68 | switch_to_thread (&mock_thread); | |
69 | } | |
70 | ||
71 | ~scoped_mock_context () | |
72 | { | |
08bdefb5 | 73 | inferior_list.erase (inferior_list.iterator_to (mock_inferior)); |
c8181f70 | 74 | mock_inferior.pop_all_targets_at_and_above (process_stratum); |
236ef034 PA |
75 | } |
76 | }; | |
77 | ||
78 | } // namespace selftests | |
79 | #endif /* GDB_SELF_TEST */ | |
80 | ||
81 | #endif /* !defined (SCOPED_MOCK_CONTEXT_H) */ |