1/* Common target dependent for AArch64 systems. 2 3 Copyright (C) 2018-2020 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#ifndef NAT_AARCH64_SVE_LINUX_PTRACE_H 21#define NAT_AARCH64_SVE_LINUX_PTRACE_H 22 23#include <signal.h> 24#include <sys/utsname.h> 25#include <sys/ptrace.h> 26#include <asm/ptrace.h> 27 28#ifndef SVE_SIG_ZREGS_SIZE 29#include "aarch64-sve-linux-sigcontext.h" 30#endif 31 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 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 40uint64_t aarch64_sve_get_vq (int tid); 41 42/* Set VQ in the kernel for the given tid, using either the value VQ or 43 reading from the register VG in the register buffer. */ 44 45bool aarch64_sve_set_vq (int tid, uint64_t vq); 46bool aarch64_sve_set_vq (int tid, struct reg_buffer_common *reg_buf); 47 48/* Read the current SVE register set using ptrace, allocating space as 49 required. */ 50 51extern std::unique_ptr<gdb_byte[]> aarch64_sve_get_sveregs (int tid); 52 53/* Put the registers from linux structure buf into register buffer. Assumes the 54 vector lengths in the register buffer match the size in the kernel. */ 55 56extern void aarch64_sve_regs_copy_to_reg_buf (struct reg_buffer_common *reg_buf, 57 const void *buf); 58 59/* Put the registers from register buffer into linux structure buf. Assumes the 60 vector lengths in the register buffer match the size in the kernel. */ 61 62extern void 63aarch64_sve_regs_copy_from_reg_buf (const struct reg_buffer_common *reg_buf, 64 void *buf); 65 66#endif /* NAT_AARCH64_SVE_LINUX_PTRACE_H */ 67