1/* GNU/Linux/aarch64 specific target description, for the remote server
2   for GDB.
3   Copyright (C) 2017-2020 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
29/* All possible aarch64 target descriptors.  */
30struct target_desc *tdesc_aarch64_list[AARCH64_MAX_SVE_VQ + 1][2/*pauth*/];
31
32/* Create the aarch64 target description.  */
33
34const target_desc *
35aarch64_linux_read_description (uint64_t vq, bool pauth_p)
36{
37  if (vq > AARCH64_MAX_SVE_VQ)
38    error (_("VQ is %" PRIu64 ", maximum supported value is %d"), vq,
39	   AARCH64_MAX_SVE_VQ);
40
41  struct target_desc *tdesc = tdesc_aarch64_list[vq][pauth_p];
42
43  if (tdesc == NULL)
44    {
45      tdesc = aarch64_create_target_description (vq, pauth_p);
46
47      static const char *expedite_regs_aarch64[] = { "x29", "sp", "pc", NULL };
48      static const char *expedite_regs_aarch64_sve[] = { "x29", "sp", "pc",
49							 "vg", NULL };
50
51      if (vq == 0)
52	init_target_desc (tdesc, expedite_regs_aarch64);
53      else
54	init_target_desc (tdesc, expedite_regs_aarch64_sve);
55
56      tdesc_aarch64_list[vq][pauth_p] = tdesc;
57    }
58
59  return tdesc;
60}
61