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Ptrace support for Aarch64 SVE
[thirdparty/binutils-gdb.git] / gdb / nat / aarch64-sve-linux-ptrace.h
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1/* Common target dependent for AArch64 systems.
2
3 Copyright (C) 2018 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#ifndef AARCH64_SVE_LINUX_PTRACE_H
21#define AARCH64_SVE_LINUX_PTRACE_H
22
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23#include <asm/sigcontext.h>
24#include <sys/utsname.h>
25#include <sys/ptrace.h>
26#include <asm/ptrace.h>
27
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28#ifndef SVE_SIG_ZREGS_SIZE
29#include "aarch64-sve-linux-sigcontext.h"
30#endif
31
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32/* Indicates whether a SVE ptrace header is followed by SVE registers or a
33 fpsimd structure. */
34
35#define HAS_SVE_STATE(header) ((header).flags && SVE_PT_REGS_SVE)
36
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37/* Read VQ for the given tid using ptrace. If SVE is not supported then zero
38 is returned (on a system that supports SVE, then VQ cannot be zero). */
39
39bfb937 40uint64_t aarch64_sve_get_vq (int tid);
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42/* Read the current SVE register set using ptrace, allocating space as
43 required. */
44
45extern std::unique_ptr<gdb_byte[]> aarch64_sve_get_sveregs (int tid);
46
47/* Put the registers from linux structure buf into register buffer. */
48
49extern void aarch64_sve_regs_copy_to_reg_buf (struct reg_buffer_common *reg_buf,
50 const void *buf);
51
52/* Put the registers from register buffer into linux structure buf. */
53
54extern void
55aarch64_sve_regs_copy_from_reg_buf (const struct reg_buffer_common *reg_buf,
56 void *buf);
57
122394f1 58#endif /* aarch64-sve-linux-ptrace.h */