binutils-gdb/gdb/arch/aarch64.c
John Baldwin 0ee6b1c511 Use aarch64_features to describe register features in target descriptions.
Replace the sve bool member of aarch64_features with a vq member that
holds the vector quotient.  It is zero if SVE is not present.

Add std::hash<> specialization and operator== so that aarch64_features
can be used as a key with std::unordered_map<>.

Change the various functions that create or lookup aarch64 target
descriptions to accept a const aarch64_features object rather than a
growing number of arguments.

Replace the multi-dimension tdesc_aarch64_list arrays used to cache
target descriptions with unordered_maps indexed by aarch64_feature.
2022-05-18 13:32:04 -07:00

61 lines
1.8 KiB
C

/* Copyright (C) 2017-2022 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/>. */
#include "gdbsupport/common-defs.h"
#include "aarch64.h"
#include <stdlib.h>
#include "../features/aarch64-core.c"
#include "../features/aarch64-fpu.c"
#include "../features/aarch64-sve.c"
#include "../features/aarch64-pauth.c"
#include "../features/aarch64-mte.c"
#include "../features/aarch64-tls.c"
/* See arch/aarch64.h. */
target_desc *
aarch64_create_target_description (const aarch64_features &features)
{
target_desc_up tdesc = allocate_target_description ();
#ifndef IN_PROCESS_AGENT
set_tdesc_architecture (tdesc.get (), "aarch64");
#endif
long regnum = 0;
regnum = create_feature_aarch64_core (tdesc.get (), regnum);
if (features.vq == 0)
regnum = create_feature_aarch64_fpu (tdesc.get (), regnum);
else
regnum = create_feature_aarch64_sve (tdesc.get (), regnum, features.vq);
if (features.pauth)
regnum = create_feature_aarch64_pauth (tdesc.get (), regnum);
/* Memory tagging extension registers. */
if (features.mte)
regnum = create_feature_aarch64_mte (tdesc.get (), regnum);
if (features.tls)
regnum = create_feature_aarch64_tls (tdesc.get (), regnum);
return tdesc.release ();
}