1/*
2 * Copyright (C) 2014 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_mips64.S"
18
19    .set noreorder
20    .balign 16
21
22    /*
23     * Jni dlsym lookup stub.
24     */
25    .extern artFindNativeMethod
26ENTRY art_jni_dlsym_lookup_stub
27    daddiu $sp, $sp, -80        # save a0-a7 and $ra
28    .cfi_adjust_cfa_offset 80
29    sd     $ra, 64($sp)
30    .cfi_rel_offset 31, 64
31    sd     $a7, 56($sp)
32    .cfi_rel_offset 11, 56
33    sd     $a6, 48($sp)
34    .cfi_rel_offset 10, 48
35    sd     $a5, 40($sp)
36    .cfi_rel_offset 9, 40
37    sd     $a4, 32($sp)
38    .cfi_rel_offset 8, 32
39    sd     $a3, 24($sp)
40    .cfi_rel_offset 7, 24
41    sd     $a2, 16($sp)
42    .cfi_rel_offset 6, 16
43    sd     $a1, 8($sp)
44    .cfi_rel_offset 5, 8
45    sd     $a0, 0($sp)
46    .cfi_rel_offset 4, 0
47    move   $a0, $s1             # pass Thread::Current()
48    jal    artFindNativeMethod  # (Thread*)
49    .cpreturn                   # Restore gp from t8 in branch delay slot. gp is not used
50                                # anymore, and t8 may be clobbered in artFindNativeMethod.
51
52    ld     $a0, 0($sp)          # restore registers from stack
53    .cfi_restore 4
54    ld     $a1, 8($sp)
55    .cfi_restore 5
56    ld     $a2, 16($sp)
57    .cfi_restore 6
58    ld     $a3, 24($sp)
59    .cfi_restore 7
60    ld     $a4, 32($sp)
61    .cfi_restore 8
62    ld     $a5, 40($sp)
63    .cfi_restore 9
64    ld     $a6, 48($sp)
65    .cfi_restore 10
66    ld     $a7, 56($sp)
67    .cfi_restore 11
68    ld     $ra, 64($sp)
69    .cfi_restore 31
70    beq    $v0, $zero, .Lno_native_code_found
71    daddiu $sp, $sp, 80         # restore the stack
72    .cfi_adjust_cfa_offset -80
73    move   $t9, $v0             # put method code result in $t9
74    jalr   $zero, $t9           # leaf call to method's code
75    nop
76.Lno_native_code_found:
77    jalr   $zero, $ra
78    nop
79END art_jni_dlsym_lookup_stub
80