derek.holloway
7502bf64a4
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101 lines
2.9 KiB
C
101 lines
2.9 KiB
C
/* Copyright (C) 2017-2024 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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#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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#include "../features/aarch64-sme.c"
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#include "../features/aarch64-sme2.c"
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#include "../features/aarch64-tls.c"
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/* See arch/aarch64.h. */
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target_desc *
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aarch64_create_target_description (const aarch64_features &features)
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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 (features.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, features.vq);
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if (features.pauth)
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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 (features.mte)
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regnum = create_feature_aarch64_mte (tdesc.get (), regnum);
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/* TLS registers. */
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if (features.tls > 0)
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regnum = create_feature_aarch64_tls (tdesc.get (), regnum, features.tls);
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if (features.svq)
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regnum = create_feature_aarch64_sme (tdesc.get (), regnum,
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sve_vl_from_vq (features.svq));
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if (features.sme2)
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regnum = create_feature_aarch64_sme2 (tdesc.get (), regnum);
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return tdesc.release ();
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}
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/* See arch/aarch64.h. */
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CORE_ADDR
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aarch64_remove_top_bits (CORE_ADDR pointer, CORE_ADDR mask)
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{
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/* The VA range select bit is 55. This bit tells us if we have a
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kernel-space address or a user-space address. */
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bool kernel_address = (pointer & VA_RANGE_SELECT_BIT_MASK) != 0;
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/* Remove the top non-address bits. */
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pointer &= ~mask;
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/* Sign-extend if we have a kernel-space address. */
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if (kernel_address)
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pointer |= mask;
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return pointer;
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}
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/* See arch/aarch64.h. */
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CORE_ADDR
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aarch64_mask_from_pac_registers (const CORE_ADDR cmask, const CORE_ADDR dmask)
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{
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/* If the masks differ, default to using the one with the most coverage. */
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if (dmask != cmask)
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return dmask > cmask ? dmask : cmask;
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return cmask;
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}
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