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/* GNU/Linux/aarch64 specific target description, for the remote server
for GDB.
Copyright (C) 2017-2024 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 "server.h"
#include "linux-aarch64-tdesc.h"
#include "tdesc.h"
#include "arch/aarch64.h"
#include "linux-aarch32-low.h"
#include <inttypes.h>
#include <unordered_map>
/* All possible aarch64 target descriptors. */
static std::unordered_map<aarch64_features, target_desc *> tdesc_aarch64_map;
static std::vector<const char *> expedited_registers;
/* Create the aarch64 target description. */
const target_desc *
aarch64_linux_read_description (const aarch64_features &features)
{
if (features.vq > AARCH64_MAX_SVE_VQ)
error (_("VQ is %" PRIu64 ", maximum supported value is %d"), features.vq,
AARCH64_MAX_SVE_VQ);
if (features.svq > AARCH64_MAX_SVE_VQ)
error (_("Streaming svq is %" PRIu8 ", maximum supported value is %d"),
features.svq,
AARCH64_MAX_SVE_VQ);
struct target_desc *tdesc = tdesc_aarch64_map[features];
if (tdesc == NULL)
{
tdesc = aarch64_create_target_description (features);
expedited_registers.clear ();
/* Configure the expedited registers. By default we include x29, sp and
pc. */
expedited_registers.push_back ("x29");
expedited_registers.push_back ("sp");
expedited_registers.push_back ("pc");
if (features.vq > 0)
expedited_registers.push_back ("vg");
if (features.svq > 0)
expedited_registers.push_back ("svg");
expedited_registers.push_back (nullptr);
init_target_desc (tdesc, (const char **) expedited_registers.data ());
tdesc_aarch64_map[features] = tdesc;
}
return tdesc;
}
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