1 /* Common AArch64 definitions for MTE 2 3 Copyright (C) 2021-2024 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 GDB_ARCH_AARCH64_MTE_H 21 #define GDB_ARCH_AARCH64_MTE_H 22 23 24 /* We have one tag per 16 bytes of memory. */ 25 #define AARCH64_MTE_GRANULE_SIZE 16 26 #define AARCH64_MTE_TAG_BIT_SIZE 4 27 #define AARCH64_MTE_LOGICAL_TAG_START_BIT 56 28 #define AARCH64_MTE_LOGICAL_MAX_VALUE 0xf 29 30 /* Return the number of tag granules in the memory range 31 [ADDR, ADDR + LEN) given GRANULE_SIZE. */ 32 extern size_t aarch64_mte_get_tag_granules (CORE_ADDR addr, size_t len, 33 size_t granule_size); 34 35 /* Return the 4-bit tag made from VALUE. */ 36 extern CORE_ADDR aarch64_mte_make_ltag_bits (CORE_ADDR value); 37 38 /* Return the 4-bit tag that can be OR-ed to an address. */ 39 extern CORE_ADDR aarch64_mte_make_ltag (CORE_ADDR value); 40 41 /* Helper to set the logical TAG for a 64-bit ADDRESS. 42 43 It is always possible to set the logical tag. */ 44 extern CORE_ADDR aarch64_mte_set_ltag (CORE_ADDR address, CORE_ADDR tag); 45 46 /* Helper to get the logical tag from a 64-bit ADDRESS. 47 48 It is always possible to get the logical tag. */ 49 extern CORE_ADDR aarch64_mte_get_ltag (CORE_ADDR address); 50 51 #endif /* GDB_ARCH_AARCH64_MTE_H */ 52
Indexes created Wed Apr 08 00:23:23 UTC 2026