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/* Abstract base class inherited by all process_stratum targets
Copyright (C) 2018-2020 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 PROCESS_STRATUM_TARGET_H
#define PROCESS_STRATUM_TARGET_H
#include "target.h"
/* Abstract base class inherited by all process_stratum targets. */
class process_stratum_target : public target_ops
{
public:
~process_stratum_target () override = 0;
strata stratum () const final override { return process_stratum; }
/* We must default these because they must be implemented by any
target that can run. */
bool can_async_p () override { return false; }
bool supports_non_stop () override { return false; }
bool supports_disable_randomization () override { return false; }
/* This default implementation returns the inferior's address
space. */
struct address_space *thread_address_space (ptid_t ptid) override;
/* This default implementation always returns target_gdbarch (). */
struct gdbarch *thread_architecture (ptid_t ptid) override;
/* Default implementations for process_stratum targets. Return true
if there's a selected inferior, false otherwise. */
bool has_all_memory () override;
bool has_memory () override;
bool has_stack () override;
bool has_registers () override;
bool has_execution (inferior *inf) override;
/* True if any thread is, or may be executing. We need to track
this separately because until we fully sync the thread list, we
won't know whether the target is fully stopped, even if we see
stop events for all known threads, because any of those threads
may have spawned new threads we haven't heard of yet. */
bool threads_executing = false;
};
/* Downcast TARGET to process_stratum_target. */
static inline process_stratum_target *
as_process_stratum_target (target_ops *target)
{
gdb_assert (target->stratum () == process_stratum);
return static_cast<process_stratum_target *> (target);
}
#endif /* !defined (PROCESS_STRATUM_TARGET_H) */
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