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/* Common target dependent for AArch64 systems.
Copyright (C) 2018-2021 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/>. */
#ifndef NAT_AARCH64_SVE_LINUX_PTRACE_H
#define NAT_AARCH64_SVE_LINUX_PTRACE_H
#include <signal.h>
#include <sys/utsname.h>
/* The order in which <sys/ptrace.h> and <asm/ptrace.h> are included
can be important. <sys/ptrace.h> often declares various PTRACE_*
enums. <asm/ptrace.h> often defines preprocessor constants for
these very same symbols. When that's the case, build errors will
result when <asm/ptrace.h> is included before <sys/ptrace.h>. */
#include <sys/ptrace.h>
#include <asm/ptrace.h>
#ifndef SVE_SIG_ZREGS_SIZE
#include "aarch64-sve-linux-sigcontext.h"
#endif
/* Indicates whether a SVE ptrace header is followed by SVE registers or a
fpsimd structure. */
#define HAS_SVE_STATE(header) ((header).flags & SVE_PT_REGS_SVE)
/* Read VQ for the given tid using ptrace. If SVE is not supported then zero
is returned (on a system that supports SVE, then VQ cannot be zero). */
uint64_t aarch64_sve_get_vq (int tid);
/* Set VQ in the kernel for the given tid, using either the value VQ or
reading from the register VG in the register buffer. */
bool aarch64_sve_set_vq (int tid, uint64_t vq);
bool aarch64_sve_set_vq (int tid, struct reg_buffer_common *reg_buf);
/* Read the current SVE register set using ptrace, allocating space as
required. */
extern std::unique_ptr<gdb_byte[]> aarch64_sve_get_sveregs (int tid);
/* Put the registers from linux structure buf into register buffer. Assumes the
vector lengths in the register buffer match the size in the kernel. */
extern void aarch64_sve_regs_copy_to_reg_buf (struct reg_buffer_common *reg_buf,
const void *buf);
/* Put the registers from register buffer into linux structure buf. Assumes the
vector lengths in the register buffer match the size in the kernel. */
extern void
aarch64_sve_regs_copy_from_reg_buf (const struct reg_buffer_common *reg_buf,
void *buf);
#endif /* NAT_AARCH64_SVE_LINUX_PTRACE_H */
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