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/* Copyright (C) 2017-2024 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "gdbsupport/common-defs.h"
#include "aarch64.h"
#include <stdlib.h>
#include "../features/aarch64-core.c"
#include "../features/aarch64-fpu.c"
#include "../features/aarch64-sve.c"
#include "../features/aarch64-pauth.c"
#include "../features/aarch64-mte.c"
#include "../features/aarch64-sme.c"
#include "../features/aarch64-sme2.c"
#include "../features/aarch64-tls.c"
/* See arch/aarch64.h. */
target_desc *
aarch64_create_target_description (const aarch64_features &features)
{
target_desc_up tdesc = allocate_target_description ();
#ifndef IN_PROCESS_AGENT
set_tdesc_architecture (tdesc.get (), "aarch64");
#endif
long regnum = 0;
regnum = create_feature_aarch64_core (tdesc.get (), regnum);
if (features.vq == 0)
regnum = create_feature_aarch64_fpu (tdesc.get (), regnum);
else
regnum = create_feature_aarch64_sve (tdesc.get (), regnum, features.vq);
if (features.pauth)
regnum = create_feature_aarch64_pauth (tdesc.get (), regnum);
/* Memory tagging extension registers. */
if (features.mte)
regnum = create_feature_aarch64_mte (tdesc.get (), regnum);
/* TLS registers. */
if (features.tls > 0)
regnum = create_feature_aarch64_tls (tdesc.get (), regnum, features.tls);
if (features.svq)
regnum = create_feature_aarch64_sme (tdesc.get (), regnum,
sve_vl_from_vq (features.svq));
if (features.sme2)
regnum = create_feature_aarch64_sme2 (tdesc.get (), regnum);
return tdesc.release ();
}
/* See arch/aarch64.h. */
CORE_ADDR
aarch64_remove_top_bits (CORE_ADDR pointer, CORE_ADDR mask)
{
/* The VA range select bit is 55. This bit tells us if we have a
kernel-space address or a user-space address. */
bool kernel_address = (pointer & VA_RANGE_SELECT_BIT_MASK) != 0;
/* Remove the top non-address bits. */
pointer &= ~mask;
/* Sign-extend if we have a kernel-space address. */
if (kernel_address)
pointer |= mask;
return pointer;
}
/* See arch/aarch64.h. */
CORE_ADDR
aarch64_mask_from_pac_registers (const CORE_ADDR cmask, const CORE_ADDR dmask)
{
/* If the masks differ, default to using the one with the most coverage. */
if (dmask != cmask)
return dmask > cmask ? dmask : cmask;
return cmask;
}
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