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b782c65ba1
This commit moves aarch64_linux_memtag_matches_p,
aarch64_linux_set_memtags, aarch64_linux_get_memtag, and
aarch64_linux_memtag_to_string hooks (plus the aarch64_mte_get_atag
function used by them), along with the setting of the memtag granule
size, from aarch64-linux-tdep.c to aarch64-tdep.c, making MTE available
on baremetal targets. Since the aarch64-linux-tdep.c layer inherits
these hooks from aarch64-tdep.c, there is no effective change for
aarch64-linux targets.
Helpers used both by aarch64-tdep.c and by aarch64-linux-tdep.c were
moved from arch/aarch64-mte-linux.{c,h} to new arch/aarch64-mte.{c,h}
files.
Signed-off-by: Gustavo Romero <gustavo.romero@linaro.org>
Tested-By: Luis Machado <luis.machado@arm.com>
Approved-By: Luis Machado <luis.machado@arm.com>
Reviewed-By: Eli Zaretskii <eliz@gnu.org>
52 lines
1.8 KiB
C
52 lines
1.8 KiB
C
/* Common AArch64 definitions for MTE
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Copyright (C) 2021-2024 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef ARCH_AARCH64_MTE_H
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#define ARCH_AARCH64_MTE_H
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/* We have one tag per 16 bytes of memory. */
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#define AARCH64_MTE_GRANULE_SIZE 16
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#define AARCH64_MTE_TAG_BIT_SIZE 4
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#define AARCH64_MTE_LOGICAL_TAG_START_BIT 56
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#define AARCH64_MTE_LOGICAL_MAX_VALUE 0xf
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/* Return the number of tag granules in the memory range
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[ADDR, ADDR + LEN) given GRANULE_SIZE. */
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extern size_t aarch64_mte_get_tag_granules (CORE_ADDR addr, size_t len,
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size_t granule_size);
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/* Return the 4-bit tag made from VALUE. */
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extern CORE_ADDR aarch64_mte_make_ltag_bits (CORE_ADDR value);
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/* Return the 4-bit tag that can be OR-ed to an address. */
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extern CORE_ADDR aarch64_mte_make_ltag (CORE_ADDR value);
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/* Helper to set the logical TAG for a 64-bit ADDRESS.
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It is always possible to set the logical tag. */
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extern CORE_ADDR aarch64_mte_set_ltag (CORE_ADDR address, CORE_ADDR tag);
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/* Helper to get the logical tag from a 64-bit ADDRESS.
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It is always possible to get the logical tag. */
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extern CORE_ADDR aarch64_mte_get_ltag (CORE_ADDR address);
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#endif /* ARCH_AARCH64_MTE_H */
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