1 /* RAII type to create a temporary mock context. 2 3 Copyright (C) 2020-2023 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 explicit scoped_mock_context (gdbarch *gdbarch) 48 { 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 53 mock_inferior.thread_list.push_back (mock_thread); 54 mock_inferior.ptid_thread_map[mock_ptid] = &mock_thread; 55 mock_inferior.gdbarch = gdbarch; 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); 65 mock_inferior.push_target (&mock_target); 66 67 /* Switch to the mock thread. */ 68 switch_to_thread (&mock_thread); 69 } 70 71 ~scoped_mock_context () 72 { 73 inferior_list.erase (inferior_list.iterator_to (mock_inferior)); 74 mock_inferior.pop_all_targets_at_and_above (process_stratum); 75 } 76 }; 77 78 } // namespace selftests 79 #endif /* GDB_SELF_TEST */ 80 81 #endif /* !defined (SCOPED_MOCK_CONTEXT_H) */ 82