| 1 | /* RAII type to create a temporary mock context. |
| 2 | |
| 3 | Copyright (C) 2020-2021 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 | |
| 47 | scoped_restore_tmpl<thread_info *> restore_thread_list |
| 48 | {&mock_inferior.thread_list, &mock_thread}; |
| 49 | |
| 50 | /* Add the mock inferior to the inferior list so that look ups by |
| 51 | target+ptid can find it. */ |
| 52 | scoped_restore_tmpl<inferior *> restore_inferior_list |
| 53 | {&inferior_list, &mock_inferior}; |
| 54 | |
| 55 | explicit scoped_mock_context (gdbarch *gdbarch) |
| 56 | { |
| 57 | mock_inferior.gdbarch = gdbarch; |
| 58 | mock_inferior.aspace = mock_pspace.aspace; |
| 59 | mock_inferior.pspace = &mock_pspace; |
| 60 | |
| 61 | /* Switch to the mock inferior. */ |
| 62 | switch_to_inferior_no_thread (&mock_inferior); |
| 63 | |
| 64 | /* Push the process_stratum target so we can mock accessing |
| 65 | registers. */ |
| 66 | gdb_assert (mock_target.stratum () == process_stratum); |
| 67 | mock_inferior.push_target (&mock_target); |
| 68 | |
| 69 | /* Switch to the mock thread. */ |
| 70 | switch_to_thread (&mock_thread); |
| 71 | } |
| 72 | |
| 73 | ~scoped_mock_context () |
| 74 | { |
| 75 | pop_all_targets_at_and_above (process_stratum); |
| 76 | } |
| 77 | }; |
| 78 | |
| 79 | } // namespace selftests |
| 80 | #endif /* GDB_SELF_TEST */ |
| 81 | |
| 82 | #endif /* !defined (SCOPED_MOCK_CONTEXT_H) */ |