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/* RAII type to create a temporary mock context.
Copyright (C) 2020-2021 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef SCOPED_MOCK_CONTEXT_H
#define SCOPED_MOCK_CONTEXT_H
#include "inferior.h"
#include "gdbthread.h"
#include "progspace.h"
#include "progspace-and-thread.h"
#if GDB_SELF_TEST
namespace selftests {
/* RAII type to create (and switch to) a temporary mock context. An
inferior with a thread, with a process_stratum target pushed. */
template<typename Target>
struct scoped_mock_context
{
/* Order here is important. */
Target mock_target;
ptid_t mock_ptid {1, 1};
program_space mock_pspace {new_address_space ()};
inferior mock_inferior {mock_ptid.pid ()};
thread_info mock_thread {&mock_inferior, mock_ptid};
scoped_restore_current_pspace_and_thread restore_pspace_thread;
scoped_restore_tmpl<thread_info *> restore_thread_list
{&mock_inferior.thread_list, &mock_thread};
/* Add the mock inferior to the inferior list so that look ups by
target+ptid can find it. */
scoped_restore_tmpl<inferior *> restore_inferior_list
{&inferior_list, &mock_inferior};
explicit scoped_mock_context (gdbarch *gdbarch)
{
mock_inferior.gdbarch = gdbarch;
mock_inferior.aspace = mock_pspace.aspace;
mock_inferior.pspace = &mock_pspace;
/* Switch to the mock inferior. */
switch_to_inferior_no_thread (&mock_inferior);
/* Push the process_stratum target so we can mock accessing
registers. */
gdb_assert (mock_target.stratum () == process_stratum);
mock_inferior.push_target (&mock_target);
/* Switch to the mock thread. */
switch_to_thread (&mock_thread);
}
~scoped_mock_context ()
{
pop_all_targets_at_and_above (process_stratum);
}
};
} // namespace selftests
#endif /* GDB_SELF_TEST */
#endif /* !defined (SCOPED_MOCK_CONTEXT_H) */
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