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1 // Copyright (c) 2015, Red Hat Inc. All rights reserved. |
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2 // DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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3 // |
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4 // This code is free software; you can redistribute it and/or modify it |
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5 // under the terms of the GNU General Public License version 2 only, as |
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6 // published by the Free Software Foundation. |
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7 // |
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8 // This code is distributed in the hope that it will be useful, but WITHOUT |
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9 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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10 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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11 // version 2 for more details (a copy is included in the LICENSE file that |
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12 // accompanied this code). |
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13 // |
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14 // You should have received a copy of the GNU General Public License version |
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15 // 2 along with this work; if not, write to the Free Software Foundation, |
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16 // Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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17 // |
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18 // Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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19 // or visit www.oracle.com if you need additional information or have any |
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20 // questions. |
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21 |
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22 // JavaThread::aarch64_get_thread_helper() |
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23 // |
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24 // Return the current thread pointer in x0. |
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25 // Clobber x1, flags. |
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26 // All other registers are preserved, |
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27 |
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28 .global _ZN10JavaThread25aarch64_get_thread_helperEv |
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29 .type _ZN10JavaThread25aarch64_get_thread_helperEv, %function |
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30 |
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31 _ZN10JavaThread25aarch64_get_thread_helperEv: |
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32 stp x29, x30, [sp, -16]! |
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33 adrp x0, :tlsdesc:_ZN6Thread12_thr_currentE |
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34 ldr x1, [x0, #:tlsdesc_lo12:_ZN6Thread12_thr_currentE] |
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35 add x0, x0, :tlsdesc_lo12:_ZN6Thread12_thr_currentE |
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36 .tlsdesccall _ZN6Thread12_thr_currentE |
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37 blr x1 |
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38 mrs x1, tpidr_el0 |
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39 add x0, x1, x0 |
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40 ldr x0, [x0] |
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41 ldp x29, x30, [sp], 16 |
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42 ret |
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43 |
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44 .size _ZN10JavaThread25aarch64_get_thread_helperEv, .-_ZN10JavaThread25aarch64_get_thread_helperEv |