| Ian Rogers | 7655f29 | 2013-07-29 11:07:13 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2012 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include "asm_support_mips.S" |
| 18 | |
| 19 | .set noreorder |
| 20 | .balign 4 |
| 21 | |
| 22 | /* |
| 23 | * Jni dlsym lookup stub. |
| 24 | */ |
| 25 | .extern artFindNativeMethod |
| 26 | ENTRY art_jni_dlsym_lookup_stub |
| 27 | GENERATE_GLOBAL_POINTER |
| 28 | addiu $sp, $sp, -32 # leave room for $a0, $a1, $a2, $a3, and $ra |
| 29 | .cfi_adjust_cfa_offset 32 |
| 30 | sw $ra, 16($sp) |
| 31 | .cfi_rel_offset 31, 16 |
| 32 | sw $a3, 12($sp) |
| 33 | .cfi_rel_offset 7, 12 |
| 34 | sw $a2, 8($sp) |
| 35 | .cfi_rel_offset 6, 8 |
| 36 | sw $a1, 4($sp) |
| 37 | .cfi_rel_offset 5, 4 |
| 38 | sw $a0, 0($sp) |
| 39 | .cfi_rel_offset 4, 0 |
| 40 | jal artFindNativeMethod # (Thread*) |
| 41 | move $a0, $s1 # pass Thread::Current() |
| 42 | lw $a0, 0($sp) # restore registers from stack |
| 43 | lw $a1, 4($sp) |
| 44 | lw $a2, 8($sp) |
| 45 | lw $a3, 12($sp) |
| 46 | lw $ra, 16($sp) |
| 47 | beq $v0, $zero, no_native_code_found |
| 48 | addiu $sp, $sp, 32 # restore the stack |
| 49 | .cfi_adjust_cfa_offset -32 |
| 50 | move $t9, $v0 # put method code result in $t9 |
| 51 | jr $t9 # leaf call to method's code |
| 52 | nop |
| 53 | no_native_code_found: |
| 54 | jr $ra |
| 55 | nop |
| 56 | END art_jni_dlsym_lookup_stub |
| 57 | |
| 58 | /* |
| 59 | * Entry point of native methods when JNI bug compatibility is enabled. |
| 60 | */ |
| 61 | .extern artWorkAroundAppJniBugs |
| 62 | ENTRY art_quick_work_around_app_jni_bugs |
| 63 | GENERATE_GLOBAL_POINTER |
| 64 | # save registers that may contain arguments and LR that will be crushed by a call |
| 65 | addiu $sp, $sp, -32 |
| 66 | .cfi_adjust_cfa_offset 32 |
| 67 | sw $ra, 28($sp) |
| 68 | .cfi_rel_offset 31, 28 |
| 69 | sw $a3, 24($sp) |
| 70 | .cfi_rel_offset 7, 28 |
| 71 | sw $a2, 20($sp) |
| 72 | .cfi_rel_offset 6, 28 |
| 73 | sw $a1, 16($sp) |
| 74 | .cfi_rel_offset 5, 28 |
| 75 | sw $a0, 12($sp) |
| 76 | .cfi_rel_offset 4, 28 |
| 77 | move $a0, rSELF # pass Thread::Current |
| 78 | jal artWorkAroundAppJniBugs # (Thread*, $sp) |
| 79 | move $a1, $sp # pass $sp |
| 80 | move $t9, $v0 # save target address |
| 81 | lw $a0, 12($sp) |
| 82 | lw $a1, 16($sp) |
| 83 | lw $a2, 20($sp) |
| 84 | lw $a3, 24($sp) |
| 85 | lw $ra, 28($sp) |
| 86 | jr $t9 # tail call into JNI routine |
| 87 | addiu $sp, $sp, 32 |
| 88 | .cfi_adjust_cfa_offset -32 |
| 89 | END art_quick_work_around_app_jni_bugs |