| /* |
| * Copyright (C) 2012 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_arm.S" |
| |
| /* |
| * Jni dlsym lookup stub. |
| */ |
| .extern artFindNativeMethod |
| ENTRY art_jni_dlsym_lookup_stub |
| push {r0, r1, r2, r3, lr} @ spill regs |
| .save {r0, r1, r2, r3, lr} |
| .pad #20 |
| .cfi_adjust_cfa_offset 20 |
| sub sp, #12 @ pad stack pointer to align frame |
| .pad #12 |
| .cfi_adjust_cfa_offset 12 |
| blx artFindNativeMethod |
| mov r12, r0 @ save result in r12 |
| add sp, #12 @ restore stack pointer |
| .cfi_adjust_cfa_offset -12 |
| cbz r0, 1f @ is method code null? |
| pop {r0, r1, r2, r3, lr} @ restore regs |
| .cfi_adjust_cfa_offset -20 |
| bx r12 @ if non-null, tail call to method's code |
| 1: |
| .cfi_adjust_cfa_offset 20 |
| pop {r0, r1, r2, r3, pc} @ restore regs and return to caller to handle exception |
| .cfi_adjust_cfa_offset -20 |
| END art_jni_dlsym_lookup_stub |
