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