48 lines
1.7 KiB
ArmAsm
48 lines
1.7 KiB
ArmAsm
/*
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* Copyright (C) 2012 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_arm.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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ENTRY art_jni_dlsym_lookup_stub
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push {r0, r1, r2, r3, lr} @ spill regs
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.cfi_adjust_cfa_offset 20
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.cfi_rel_offset r0, 0
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.cfi_rel_offset r1, 4
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.cfi_rel_offset r2, 8
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.cfi_rel_offset r3, 12
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.cfi_rel_offset lr, 16
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sub sp, #12 @ pad stack pointer to align frame
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.cfi_adjust_cfa_offset 12
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blx artFindNativeMethod
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mov r12, r0 @ save result in r12
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add sp, #12 @ restore stack pointer
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.cfi_adjust_cfa_offset -12
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cbz r0, 1f @ is method code null?
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pop {r0, r1, r2, r3, lr} @ restore regs
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.cfi_adjust_cfa_offset -20
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.cfi_restore r0
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.cfi_restore r1
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.cfi_restore r2
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.cfi_restore r3
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.cfi_restore lr
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bx r12 @ if non-null, tail call to method's code
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1:
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pop {r0, r1, r2, r3, pc} @ restore regs and return to caller to handle exception
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END art_jni_dlsym_lookup_stub
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