57 lines
1.6 KiB
ArmAsm
57 lines
1.6 KiB
ArmAsm
/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "asm_support_arm64.S"
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/*
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* Jni dlsym lookup stub.
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*/
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.extern artFindNativeMethod
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// TODO: Add CFI directives.
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ENTRY art_jni_dlsym_lookup_stub
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// spill regs.
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stp x29, x30, [sp, #-16]!
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mov x29, sp
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stp d6, d7, [sp, #-16]!
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stp d4, d5, [sp, #-16]!
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stp d2, d3, [sp, #-16]!
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stp d0, d1, [sp, #-16]!
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stp x6, x7, [sp, #-16]!
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stp x4, x5, [sp, #-16]!
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stp x2, x3, [sp, #-16]!
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stp x0, x1, [sp, #-16]!
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bl artFindNativeMethod
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mov x17, x0 // store result in scratch reg.
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// load spill regs.
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ldp x0, x1, [sp], #16
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ldp x2, x3, [sp], #16
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ldp x4, x5, [sp], #16
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ldp x6, x7, [sp], #16
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ldp d0, d1, [sp], #16
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ldp d2, d3, [sp], #16
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ldp d4, d5, [sp], #16
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ldp d6, d7, [sp], #16
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ldp x29, x30, [sp], #16
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cbz x17, 1f // is method code null ?
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br x17 // if non-null, tail call to method's code.
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1:
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ret // restore regs and return to caller to handle exception.
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END art_jni_dlsym_lookup_stub
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