projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 236ef034 PA |
1 | /* RAII type to create a temporary mock context. |
| 2 | ||
| 3 | Copyright (C) 2020 Free Software Foundation, Inc. | |
| 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}; | |
| 41 | program_space mock_pspace {new_address_space ()}; | |
| 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 | ||
| b930cab1 SM |
47 | scoped_restore restore_thread_map |
| 48 | = make_scoped_restore (&mock_inferior.thread_map, ptid_thread_map ({{mock_ptid, &mock_thread}})); | |
| 49 | ||
| 236ef034 PA |
50 | scoped_restore_tmpl<thread_info *> restore_thread_list |
| 51 | {&mock_inferior.thread_list, &mock_thread}; | |
| 52 | ||
| 53 | /* Add the mock inferior to the inferior list so that look ups by | |
| 54 | target+ptid can find it. */ | |
| 55 | scoped_restore_tmpl<inferior *> restore_inferior_list | |
| 56 | {&inferior_list, &mock_inferior}; | |
| 57 | ||
| 58 | explicit scoped_mock_context (gdbarch *gdbarch) | |
| 59 | { | |
| 60 | mock_inferior.gdbarch = gdbarch; | |
| 61 | mock_inferior.aspace = mock_pspace.aspace; | |
| 62 | mock_inferior.pspace = &mock_pspace; | |
| 63 | ||
| 64 | /* Switch to the mock inferior. */ | |
| 65 | switch_to_inferior_no_thread (&mock_inferior); | |
| 66 | ||
| 67 | /* Push the process_stratum target so we can mock accessing | |
| 68 | registers. */ | |
| 69 | gdb_assert (mock_target.stratum () == process_stratum); | |
| 70 | push_target (&mock_target); | |
| 71 | ||
| 72 | /* Switch to the mock thread. */ | |
| 73 | switch_to_thread (&mock_thread); | |
| 74 | } | |
| 75 | ||
| 76 | ~scoped_mock_context () | |
| 77 | { | |
| 78 | pop_all_targets_at_and_above (process_stratum); | |
| 79 | } | |
| 80 | }; | |
| 81 | ||
| 82 | } // namespace selftests | |
| 83 | #endif /* GDB_SELF_TEST */ | |
| 84 | ||
| 85 | #endif /* !defined (SCOPED_MOCK_CONTEXT_H) */ |