| Alexey Frunze | 00b53b7 | 2016-02-02 20:25:45 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2016 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 | /* |
| 18 | * Interpreter entry point. |
| 19 | */ |
| 20 | |
| 21 | .set reorder |
| 22 | |
| 23 | .text |
| 24 | .global ExecuteMterpImpl |
| 25 | .type ExecuteMterpImpl, %function |
| 26 | .balign 16 |
| 27 | /* |
| 28 | * On entry: |
| 29 | * a0 Thread* self |
| 30 | * a1 code_item |
| 31 | * a2 ShadowFrame |
| 32 | * a3 JValue* result_register |
| 33 | * |
| 34 | */ |
| 35 | ExecuteMterpImpl: |
| 36 | .cfi_startproc |
| 37 | .cpsetup t9, t8, ExecuteMterpImpl |
| 38 | |
| 39 | .cfi_def_cfa sp, 0 |
| 40 | daddu sp, sp, -STACK_SIZE |
| 41 | .cfi_adjust_cfa_offset STACK_SIZE |
| 42 | |
| 43 | sd t8, STACK_OFFSET_GP(sp) |
| 44 | .cfi_rel_offset 28, STACK_OFFSET_GP |
| 45 | sd ra, STACK_OFFSET_RA(sp) |
| 46 | .cfi_rel_offset 31, STACK_OFFSET_RA |
| 47 | |
| 48 | sd s0, STACK_OFFSET_S0(sp) |
| 49 | .cfi_rel_offset 16, STACK_OFFSET_S0 |
| 50 | sd s1, STACK_OFFSET_S1(sp) |
| 51 | .cfi_rel_offset 17, STACK_OFFSET_S1 |
| 52 | sd s2, STACK_OFFSET_S2(sp) |
| 53 | .cfi_rel_offset 18, STACK_OFFSET_S2 |
| 54 | sd s3, STACK_OFFSET_S3(sp) |
| 55 | .cfi_rel_offset 19, STACK_OFFSET_S3 |
| 56 | sd s4, STACK_OFFSET_S4(sp) |
| 57 | .cfi_rel_offset 20, STACK_OFFSET_S4 |
| 58 | sd s5, STACK_OFFSET_S5(sp) |
| 59 | .cfi_rel_offset 21, STACK_OFFSET_S5 |
| Douglas Leung | 020b18a | 2016-06-03 18:05:35 -0700 | [diff] [blame] | 60 | sd s6, STACK_OFFSET_S6(sp) |
| 61 | .cfi_rel_offset 22, STACK_OFFSET_S6 |
| Alexey Frunze | 00b53b7 | 2016-02-02 20:25:45 -0800 | [diff] [blame] | 62 | |
| 63 | /* Remember the return register */ |
| 64 | sd a3, SHADOWFRAME_RESULT_REGISTER_OFFSET(a2) |
| 65 | |
| 66 | /* Remember the code_item */ |
| 67 | sd a1, SHADOWFRAME_CODE_ITEM_OFFSET(a2) |
| 68 | |
| 69 | /* set up "named" registers */ |
| 70 | move rSELF, a0 |
| 71 | daddu rFP, a2, SHADOWFRAME_VREGS_OFFSET |
| 72 | lw v0, SHADOWFRAME_NUMBER_OF_VREGS_OFFSET(a2) |
| 73 | dlsa rREFS, v0, rFP, 2 |
| 74 | daddu rPC, a1, CODEITEM_INSNS_OFFSET |
| 75 | lw v0, SHADOWFRAME_DEX_PC_OFFSET(a2) |
| 76 | dlsa rPC, v0, rPC, 1 |
| 77 | EXPORT_PC |
| 78 | |
| 79 | /* Starting ibase */ |
| 80 | REFRESH_IBASE |
| 81 | |
| Douglas Leung | 020b18a | 2016-06-03 18:05:35 -0700 | [diff] [blame] | 82 | /* Set up for backwards branches & osr profiling */ |
| 83 | ld a0, OFF_FP_METHOD(rFP) |
| 84 | daddu a1, rFP, OFF_FP_SHADOWFRAME |
| 85 | jal MterpSetUpHotnessCountdown |
| 86 | move rPROFILE, v0 # Starting hotness countdown to rPROFILE |
| 87 | |
| Alexey Frunze | 00b53b7 | 2016-02-02 20:25:45 -0800 | [diff] [blame] | 88 | /* start executing the instruction at rPC */ |
| 89 | FETCH_INST |
| 90 | GET_INST_OPCODE v0 |
| 91 | GOTO_OPCODE v0 |
| 92 | |
| 93 | /* NOTE: no fallthrough */ |