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/* Target description related code for GNU/Linux x86 (i386 and x86-64).
Copyright (C) 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/>. */
#ifndef GDB_ARCH_X86_LINUX_TDESC_FEATURES_H
#define GDB_ARCH_X86_LINUX_TDESC_FEATURES_H
#include "gdbsupport/x86-xstate.h"
#include "gdbsupport/gdb_assert.h"
/* Return a mask of X86_STATE_* feature flags. The returned mask indicates
the set of features which are checked for when creating the target
description for each of amd64, x32, and i386. */
extern uint64_t x86_linux_amd64_xcr0_feature_mask ();
extern uint64_t x86_linux_x32_xcr0_feature_mask ();
extern uint64_t x86_linux_i386_xcr0_feature_mask ();
#ifdef GDBSERVER
/* Convert an xcr0 value into an integer. The integer will be passed from
gdbserver to the in-process-agent where it will then be passed through
x86_linux_tdesc_idx_to_xcr0 to get back the original xcr0 value. */
extern int x86_linux_xcr0_to_tdesc_idx (uint64_t xcr0);
#endif /* GDBSERVER */
#ifdef IN_PROCESS_AGENT
/* Return the maximum possible number of target descriptions for each of
amd64, x32, and i386. These are used by the in-process-agent to
generate every possible target description. */
extern int x86_linux_amd64_tdesc_count ();
extern int x86_linux_x32_tdesc_count ();
extern int x86_linux_i386_tdesc_count ();
/* Convert an index number (as returned from x86_linux_xcr0_to_tdesc_idx)
into an xcr0 value which can then be used to create a target
description. */
extern uint64_t x86_linux_tdesc_idx_to_xcr0 (int idx);
#endif /* IN_PROCESS_AGENT */
#endif /* GDB_ARCH_X86_LINUX_TDESC_FEATURES_H */
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