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