08bdefb58b
Change inferior_list, the global list of inferiors, to use intrusive_list. I think most other changes are somewhat obvious fallouts from this change. There is a small change in behavior in scoped_mock_context. Before this patch, constructing a scoped_mock_context would replace the whole inferior list with only the new mock inferior. Tests using two scoped_mock_contexts therefore needed to manually link the two inferiors together, as the second scoped_mock_context would bump the first mock inferior from the thread list. With this patch, a scoped_mock_context adds its mock inferior to the inferior list on construction, and removes it on destruction. This means that tests run with mock inferiors in the inferior list in addition to any pre-existing inferiors (there is always at least one). There is no possible pid clash problem, since each scoped mock inferior uses its own process target, and pids are per process target. Co-Authored-By: Simon Marchi <simon.marchi@efficios.com> Change-Id: I7eb6a8f867d4dcf8b8cd2dcffd118f7270756018
80 lines
2.4 KiB
C++
80 lines
2.4 KiB
C++
/* RAII type to create a temporary mock context.
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Copyright (C) 2020-2021 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef SCOPED_MOCK_CONTEXT_H
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#define SCOPED_MOCK_CONTEXT_H
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#include "inferior.h"
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#include "gdbthread.h"
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#include "progspace.h"
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#include "progspace-and-thread.h"
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#if GDB_SELF_TEST
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namespace selftests {
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/* RAII type to create (and switch to) a temporary mock context. An
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inferior with a thread, with a process_stratum target pushed. */
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template<typename Target>
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struct scoped_mock_context
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{
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/* Order here is important. */
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Target mock_target;
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ptid_t mock_ptid {1, 1};
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program_space mock_pspace {new_address_space ()};
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inferior mock_inferior {mock_ptid.pid ()};
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thread_info mock_thread {&mock_inferior, mock_ptid};
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scoped_restore_current_pspace_and_thread restore_pspace_thread;
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explicit scoped_mock_context (gdbarch *gdbarch)
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{
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/* Add the mock inferior to the inferior list so that look ups by
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target+ptid can find it. */
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inferior_list.push_back (mock_inferior);
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mock_inferior.thread_list.push_back (mock_thread);
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mock_inferior.gdbarch = gdbarch;
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mock_inferior.aspace = mock_pspace.aspace;
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mock_inferior.pspace = &mock_pspace;
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/* Switch to the mock inferior. */
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switch_to_inferior_no_thread (&mock_inferior);
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/* Push the process_stratum target so we can mock accessing
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registers. */
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gdb_assert (mock_target.stratum () == process_stratum);
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mock_inferior.push_target (&mock_target);
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/* Switch to the mock thread. */
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switch_to_thread (&mock_thread);
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}
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~scoped_mock_context ()
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{
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inferior_list.erase (inferior_list.iterator_to (mock_inferior));
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pop_all_targets_at_and_above (process_stratum);
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}
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};
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} // namespace selftests
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#endif /* GDB_SELF_TEST */
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#endif /* !defined (SCOPED_MOCK_CONTEXT_H) */
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