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c1bd443b4d
This patch adds a target description and feature "mte" for aarch64. It includes one new register, tag_ctl, that can be used to configure the tag generation rules and sync/async modes. It is 64-bit in size. The patch also adjusts the code that creates the target descriptions at runtime based on CPU feature checks. gdb/ChangeLog: 2021-03-24 Luis Machado <luis.machado@linaro.org> * aarch64-linux-nat.c (aarch64_linux_nat_target::read_description): Take MTE flag into account. Slight refactor to hwcap flag checking. * aarch64-linux-tdep.c (aarch64_linux_core_read_description): Likewise. * aarch64-tdep.c (tdesc_aarch64_list): Add one more dimension for MTE. (aarch64_read_description): Add mte_p parameter and update to use it. Update the documentation. (aarch64_gdbarch_init): Update call to aarch64_read_description. * aarch64-tdep.h (aarch64_read_description): Add mte_p parameter. * arch/aarch64.c: Include ../features/aarch64-mte.c. (aarch64_create_target_description): Add mte_p parameter and update the code to use it. * arch/aarch64.h (aarch64_create_target_description): Add mte_p parameter. * features/Makefile (FEATURE_XMLFILES): Add aarch64-mte.xml. * features/aarch64-mte.c: New file, generated. * features/aarch64-mte.xml: New file. gdbserver/ChangeLog: 2021-03-24 Luis Machado <luis.machado@linaro.org> * linux-aarch64-ipa.cc (get_ipa_tdesc): Update call to aarch64_linux_read_description. (initialize_low_tracepoint): Likewise. * linux-aarch64-low.cc (aarch64_target::low_arch_setup): Take MTE flag into account. * linux-aarch64-tdesc.cc (tdesc_aarch64_list): Add one more dimension for MTE. (aarch64_linux_read_description): Add mte_p parameter and update to use it. * linux-aarch64-tdesc.h (aarch64_linux_read_description): Add mte_p parameter.
57 lines
1.7 KiB
C
57 lines
1.7 KiB
C
/* Copyright (C) 2017-2021 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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#include "gdbsupport/common-defs.h"
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#include "aarch64.h"
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#include <stdlib.h>
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#include "../features/aarch64-core.c"
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#include "../features/aarch64-fpu.c"
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#include "../features/aarch64-sve.c"
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#include "../features/aarch64-pauth.c"
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#include "../features/aarch64-mte.c"
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/* See arch/aarch64.h. */
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target_desc *
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aarch64_create_target_description (uint64_t vq, bool pauth_p, bool mte_p)
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{
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target_desc_up tdesc = allocate_target_description ();
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#ifndef IN_PROCESS_AGENT
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set_tdesc_architecture (tdesc.get (), "aarch64");
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#endif
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long regnum = 0;
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regnum = create_feature_aarch64_core (tdesc.get (), regnum);
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if (vq == 0)
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regnum = create_feature_aarch64_fpu (tdesc.get (), regnum);
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else
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regnum = create_feature_aarch64_sve (tdesc.get (), regnum, vq);
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if (pauth_p)
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regnum = create_feature_aarch64_pauth (tdesc.get (), regnum);
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/* Memory tagging extension registers. */
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if (mte_p)
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regnum = create_feature_aarch64_mte (tdesc.get (), regnum);
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return tdesc.release ();
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}
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