1 /* Common target dependent for AArch64 systems.
3 Copyright (C) 2018-2021 Free Software Foundation, Inc.
5 This file is part of GDB.
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.
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.
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/>. */
20 #ifndef NAT_AARCH64_SVE_LINUX_PTRACE_H
21 #define NAT_AARCH64_SVE_LINUX_PTRACE_H
24 #include <sys/utsname.h>
26 /* The order in which <sys/ptrace.h> and <asm/ptrace.h> are included
27 can be important. <sys/ptrace.h> often declares various PTRACE_*
28 enums. <asm/ptrace.h> often defines preprocessor constants for
29 these very same symbols. When that's the case, build errors will
30 result when <asm/ptrace.h> is included before <sys/ptrace.h>. */
31 #include <sys/ptrace.h>
32 #include <asm/ptrace.h>
34 #ifndef SVE_SIG_ZREGS_SIZE
35 #include "aarch64-sve-linux-sigcontext.h"
38 /* Indicates whether a SVE ptrace header is followed by SVE registers or a
41 #define HAS_SVE_STATE(header) ((header).flags & SVE_PT_REGS_SVE)
43 /* Read VQ for the given tid using ptrace. If SVE is not supported then zero
44 is returned (on a system that supports SVE, then VQ cannot be zero). */
46 uint64_t aarch64_sve_get_vq (int tid
);
48 /* Set VQ in the kernel for the given tid, using either the value VQ or
49 reading from the register VG in the register buffer. */
51 bool aarch64_sve_set_vq (int tid
, uint64_t vq
);
52 bool aarch64_sve_set_vq (int tid
, struct reg_buffer_common
*reg_buf
);
54 /* Read the current SVE register set using ptrace, allocating space as
57 extern std::unique_ptr
<gdb_byte
[]> aarch64_sve_get_sveregs (int tid
);
59 /* Put the registers from linux structure buf into register buffer. Assumes the
60 vector lengths in the register buffer match the size in the kernel. */
62 extern void aarch64_sve_regs_copy_to_reg_buf (struct reg_buffer_common
*reg_buf
,
65 /* Put the registers from register buffer into linux structure buf. Assumes the
66 vector lengths in the register buffer match the size in the kernel. */
69 aarch64_sve_regs_copy_from_reg_buf (const struct reg_buffer_common
*reg_buf
,
72 #endif /* NAT_AARCH64_SVE_LINUX_PTRACE_H */
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