| 1 | /* Common target dependent for AArch64 systems. |
| 2 | |
| 3 | Copyright (C) 2018-2019 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 | |
| 40 | uint64_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 | |
| 45 | bool aarch64_sve_set_vq (int tid, uint64_t vq); |
| 46 | bool 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 | |
| 51 | extern 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 | |
| 56 | extern 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 | |
| 62 | extern void |
| 63 | aarch64_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 */ |