93 lines
2.6 KiB
ArmAsm
93 lines
2.6 KiB
ArmAsm
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* Interpreter entry point.
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*/
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.set reorder
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.text
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.global ExecuteMterpImpl
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.type ExecuteMterpImpl, %function
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.balign 16
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/*
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* On entry:
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* a0 Thread* self
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* a1 code_item
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* a2 ShadowFrame
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* a3 JValue* result_register
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*
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*/
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ExecuteMterpImpl:
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.cfi_startproc
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.cpsetup t9, t8, ExecuteMterpImpl
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.cfi_def_cfa sp, 0
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daddu sp, sp, -STACK_SIZE
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.cfi_adjust_cfa_offset STACK_SIZE
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sd t8, STACK_OFFSET_GP(sp)
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.cfi_rel_offset 28, STACK_OFFSET_GP
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sd ra, STACK_OFFSET_RA(sp)
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.cfi_rel_offset 31, STACK_OFFSET_RA
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sd s0, STACK_OFFSET_S0(sp)
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.cfi_rel_offset 16, STACK_OFFSET_S0
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sd s1, STACK_OFFSET_S1(sp)
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.cfi_rel_offset 17, STACK_OFFSET_S1
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sd s2, STACK_OFFSET_S2(sp)
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.cfi_rel_offset 18, STACK_OFFSET_S2
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sd s3, STACK_OFFSET_S3(sp)
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.cfi_rel_offset 19, STACK_OFFSET_S3
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sd s4, STACK_OFFSET_S4(sp)
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.cfi_rel_offset 20, STACK_OFFSET_S4
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sd s5, STACK_OFFSET_S5(sp)
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.cfi_rel_offset 21, STACK_OFFSET_S5
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sd s6, STACK_OFFSET_S6(sp)
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.cfi_rel_offset 22, STACK_OFFSET_S6
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/* Remember the return register */
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sd a3, SHADOWFRAME_RESULT_REGISTER_OFFSET(a2)
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/* Remember the code_item */
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sd a1, SHADOWFRAME_CODE_ITEM_OFFSET(a2)
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/* set up "named" registers */
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move rSELF, a0
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daddu rFP, a2, SHADOWFRAME_VREGS_OFFSET
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lw v0, SHADOWFRAME_NUMBER_OF_VREGS_OFFSET(a2)
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dlsa rREFS, v0, rFP, 2
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daddu rPC, a1, CODEITEM_INSNS_OFFSET
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lw v0, SHADOWFRAME_DEX_PC_OFFSET(a2)
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dlsa rPC, v0, rPC, 1
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EXPORT_PC
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/* Starting ibase */
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REFRESH_IBASE
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/* Set up for backwards branches & osr profiling */
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ld a0, OFF_FP_METHOD(rFP)
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daddu a1, rFP, OFF_FP_SHADOWFRAME
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jal MterpSetUpHotnessCountdown
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move rPROFILE, v0 # Starting hotness countdown to rPROFILE
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/* start executing the instruction at rPC */
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FETCH_INST
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GET_INST_OPCODE v0
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GOTO_OPCODE v0
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/* NOTE: no fallthrough */
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