| /* Copyright (C) 2008 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. |
| */ |
| |
| /* |
| * File: OP_INVOKE_DIRECT.S |
| * |
| * Code: Call a non-static direct method. Provides an "isrange" variable and |
| * a "routine" variable to specify this is the "range" version of |
| * invoke_direct that allows up to 255 arguments. |
| * |
| * For: invoke-direct, invoke-direct/range |
| * |
| * Description: invoke-direct is used to invoke a non-static direct method; |
| * an instance method that is non-overridable, for example, |
| * either a private instance method or a constructor. |
| * |
| * Format: B|A|op CCCC G|F|E|D (35c) |
| * AA|op BBBB CCCC (3rc) |
| * |
| * Syntax: [B=5] op {vD, vE, vF, vG, vA}, meth@CCCC (35c) |
| * [B=5] op {vD, vE, vF, vG, vA}, type@CCCC (35c) |
| * [B=4] op {vD, vE, vF, vG}, kind@CCCC (35c) |
| * [B=3] op {vD, vE, vF}, kind@CCCC (35c) |
| * [B=2] op {vD, vE}, kind@CCCC (35c) |
| * [B=1] op {vD}, kind@CCCC (35c) |
| * [B=0] op {}, kind@CCCC (35c) |
| * |
| * op {vCCCC .. vNNNN}, meth@BBBB (3rc) (where NNNN = CCCC+AA-1, that |
| * op {vCCCC .. vNNNN}, type@BBBB (3rc) is A determines the count 0..255, |
| * and C determines the first register) |
| */ |
| |
| %default { "isrange":"0", "routine":"NoRange" } |
| |
| movl rGLUE, %ecx # %ecx<- pMterpGlue |
| movl offGlue_methodClassDex(%ecx), %ecx # %ecx<- pDvmDex |
| FETCH 1, %eax # %eax<- method index |
| movl offDvmDex_pResMethods(%ecx), %ecx # %ecx<- pDvmDex->pResMethods |
| FETCH 2, %edx # %edx<- GFED or CCCC |
| movl (%ecx, %eax, 4), %ecx # %ecx<- resolved method to call |
| .if (!$isrange) |
| andl $$15, %edx # %edx<- D if not range |
| .endif |
| EXPORT_PC # must export for invoke |
| movl %edx, -4(%esp) # save "this" pointer register |
| cmp $$0, %ecx # check if already resolved |
| GET_VREG %edx # %edx<- "this" pointer |
| je .L${opcode}_resolve # handle resolve |
| |
| .L${opcode}_finish: |
| cmp $$0, %edx # check for null "this" |
| jne common_invokeMethod${routine} # invoke method common code |
| jmp common_errNullObject |
| %break |
| |
| /* |
| * %eax = reference (BBBB or CCCC) |
| * -4(%esp) = "this" register |
| */ |
| |
| .L${opcode}_resolve: |
| movl rGLUE, %edx # %edx<- pMterpGlue |
| movl $$METHOD_DIRECT, -8(%esp) # push parameter method type |
| movl offGlue_method(%edx), %edx # %edx<- glue->method |
| movl %eax, -12(%esp) # push parameter reference |
| lea -16(%esp), %esp |
| movl offMethod_clazz(%edx), %edx # %edx<- glue->method->clazz |
| movl %edx, (%esp) # push parameter clazz |
| call dvmResolveMethod # call: (const ClassObject* referrer, |
| # u4 methodIdx, MethodType methodType) |
| # return: Method* |
| lea 16(%esp), %esp |
| cmp $$0, %eax # check for null method return |
| movl -4(%esp), %edx # get "this" pointer register |
| GET_VREG %edx # get "this" pointer |
| je common_exceptionThrown # null pointer; handle exception |
| cmp $$0, %edx # check for null "this" |
| movl %eax, %ecx # %ecx<- method |
| jne common_invokeMethod${routine} # invoke method common code |
| jmp common_errNullObject # handle null object |
