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3666a04883
This commits the result of running gdb/copyright.py as per our Start
of New Year procedure...
gdb/ChangeLog
Update copyright year range in copyright header of all GDB files.
88 lines
2.4 KiB
C++
88 lines
2.4 KiB
C++
/* Copyright (C) 2017-2021 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 ARCH_ARC_H
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#define ARCH_ARC_H
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#include "gdbsupport/tdesc.h"
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/* Supported ARC ISAs. */
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enum arc_isa
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{
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ARC_ISA_ARCV1 = 1, /* a.k.a. ARCompact (ARC600, ARC700) */
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ARC_ISA_ARCV2 /* such as ARC EM and ARC HS */
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};
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struct arc_arch_features
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{
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arc_arch_features (int reg_size, arc_isa isa)
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: reg_size (reg_size), isa (isa)
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{}
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/* Register size in bytes. Possible values are 4, and 8. A 0 indicates
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an uninitialised value. */
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const int reg_size;
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/* See ARC_ISA enum. */
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const arc_isa isa;
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/* Equality operator. */
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bool operator== (const struct arc_arch_features &rhs) const
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{
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return (reg_size == rhs.reg_size && isa == rhs.isa);
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}
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/* Inequality operator. */
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bool operator!= (const struct arc_arch_features &rhs) const
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{
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return !(*this == rhs);
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}
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/* Used by std::unordered_map to hash the feature sets. The hash is
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calculated in the manner below:
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REG_SIZE | ISA
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5-bits | 4-bits */
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std::size_t hash () const noexcept
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{
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std::size_t val = ((reg_size & 0x1f) << 8 | (isa & 0xf) << 0);
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return val;
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}
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};
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#ifdef GDBSERVER
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/* Create and return a target description that is compatible with FEATURES.
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The only external client of this must be the gdbserver which manipulates
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the returned data. */
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target_desc_up arc_create_target_description
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(const struct arc_arch_features &features);
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#else
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/* Lookup the cache for a target description matching the FEATURES.
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If nothing is found, then create one and return it. */
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const target_desc *arc_lookup_target_description
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(const struct arc_arch_features &features);
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#endif /* GDBSERVER */
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#endif /* ARCH_ARC_H */
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