jdk

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// Copyright (c) 2015, 2022, Red Hat Inc. All rights reserved.
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// Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved.
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// DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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//
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// This code is free software; you can redistribute it and/or modify it
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// under the terms of the GNU General Public License version 2 only, as
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// published by the Free Software Foundation.
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//
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// This code is distributed in the hope that it will be useful, but WITHOUT
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// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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// version 2 for more details (a copy is included in the LICENSE file that
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// accompanied this code).
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//
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// You should have received a copy of the GNU General Public License version
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// 2 along with this work; if not, write to the Free Software Foundation,
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// Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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//
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// Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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// or visit www.oracle.com if you need additional information or have any
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// questions.
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#include "defs.S.inc"
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        // JavaThread::aarch64_get_thread_helper()
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        //
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        // Return the current thread pointer in x0.
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        // Clobber x1, flags.
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        // All other registers are preserved,
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DECLARE_FUNC(_ZN10JavaThread25aarch64_get_thread_helperEv):
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        hint #0x19      // paciasp
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        stp x29, x30, [sp, -16]!
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        adrp x0, :tlsdesc:_ZN6Thread12_thr_currentE
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        ldr x1, [x0, #:tlsdesc_lo12:_ZN6Thread12_thr_currentE]
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        add x0, x0, :tlsdesc_lo12:_ZN6Thread12_thr_currentE
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        .tlsdesccall _ZN6Thread12_thr_currentE
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        blr x1
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        mrs x1, tpidr_el0
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        add x0, x1, x0
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        ldr x0, [x0]
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        ldp x29, x30, [sp], 16
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        hint #0x1d      // autiasp
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        ret
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        .size _ZN10JavaThread25aarch64_get_thread_helperEv, .-_ZN10JavaThread25aarch64_get_thread_helperEv
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