1/* GNU/Linux/aarch64 specific target description, for the remote server
2   for GDB.
3   Copyright (C) 2017-2023 Free Software Foundation, Inc.
4
5   This file is part of GDB.
6
7   This program is free software; you can redistribute it and/or modify
8   it under the terms of the GNU General Public License as published by
9   the Free Software Foundation; either version 3 of the License, or
10   (at your option) any later version.
11
12   This program is distributed in the hope that it will be useful,
13   but WITHOUT ANY WARRANTY; without even the implied warranty of
14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15   GNU General Public License for more details.
16
17   You should have received a copy of the GNU General Public License
18   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
19
20#include "server.h"
21
22#include "linux-aarch64-tdesc.h"
23
24#include "tdesc.h"
25#include "arch/aarch64.h"
26#include "linux-aarch32-low.h"
27#include <inttypes.h>
28#include <unordered_map>
29
30/* All possible aarch64 target descriptors.  */
31static std::unordered_map<aarch64_features, target_desc *> tdesc_aarch64_map;
32
33/* Create the aarch64 target description.  */
34
35const target_desc *
36aarch64_linux_read_description (const aarch64_features &features)
37{
38  if (features.vq > AARCH64_MAX_SVE_VQ)
39    error (_("VQ is %" PRIu64 ", maximum supported value is %d"), features.vq,
40	   AARCH64_MAX_SVE_VQ);
41
42  struct target_desc *tdesc = tdesc_aarch64_map[features];
43
44  if (tdesc == NULL)
45    {
46      tdesc = aarch64_create_target_description (features);
47
48      static const char *expedite_regs_aarch64[] = { "x29", "sp", "pc", NULL };
49      static const char *expedite_regs_aarch64_sve[] = { "x29", "sp", "pc",
50							 "vg", NULL };
51
52      if (features.vq == 0)
53	init_target_desc (tdesc, expedite_regs_aarch64);
54      else
55	init_target_desc (tdesc, expedite_regs_aarch64_sve);
56
57      tdesc_aarch64_map[features] = tdesc;
58    }
59
60  return tdesc;
61}
62