%default { "chaintgt" : ".LinvokeChain" } /* * For monomorphic callsite, setup the Dalvik frame and return to the * Thumb code through the link register to transfer control to the callee * method through a dedicated chaining cell. */ # a0 = methodToCall, a1 = returnCell, rPC = dalvikCallsite # methodToCall is guaranteed to be non-native $chaintgt: lh t7, offMethod_registersSize(a0) # t7<- methodToCall->regsSize lh a2, offMethod_outsSize(a0) # a2<- methodToCall->outsSize lw t9, offThread_interpStackEnd(rSELF) # t9<- interpStackEnd lbu t8, offThread_breakFlags(rSELF) # t8<- breakFlags move a3, a1 # a3<- returnCell SAVEAREA_FROM_FP(a1, rFP) # a1<- stack save area sll t6, t7, 2 # multiply regsSize by 4 (4 bytes per reg) sub a1, a1, t6 # a1<- newFp(old savearea-regsSize) SAVEAREA_FROM_FP(t0, a1) # t0<- stack save area add t2, ra, 8 # setup the punt-to-interp address # 8 bytes skips branch and delay slot sll t6, a2, 2 # multiply outsSize by 4 (4 bytes per reg) sub t0, t0, t6 # t0<- bottom (newsave-outsSize) bgeu t0, t9, 1f # bottom < interpStackEnd? jr t2 # return to raise stack overflow excep. 1: # a1 = newFP, a0 = methodToCall, a3 = returnCell, rPC = dalvikCallsite lw t9, offMethod_clazz(a0) # t9<- methodToCall->clazz sw rPC, (offStackSaveArea_currentPc - sizeofStackSaveArea)(rFP) sw rPC, (offStackSaveArea_savedPc - sizeofStackSaveArea)(a1) lw rPC, offMethod_insns(a0) # rPC<- methodToCall->insns # set up newSaveArea sw rFP, (offStackSaveArea_prevFrame - sizeofStackSaveArea)(a1) sw a3, (offStackSaveArea_returnAddr - sizeofStackSaveArea)(a1) sw a0, (offStackSaveArea_method - sizeofStackSaveArea)(a1) beqz t8, 2f # breakFlags != 0 jr t2 # bail to the interpreter 2: lw a3, offClassObject_pDvmDex(t9) # a3<- methodToCall->clazz->pDvmDex # Update "thread" values for the new method sw a0, offThread_method(rSELF) # self->method = methodToCall sw a3, offThread_methodClassDex(rSELF) # self->methodClassDex = ... move rFP, a1 # fp = newFp sw rFP, offThread_curFrame(rSELF) # self->curFrame = newFp #if defined(TEMPLATE_INLINE_PROFILING) # preserve a0-a2 and ra SCRATCH_STORE(a0, 0) SCRATCH_STORE(a1, 4) SCRATCH_STORE(a2, 8) SCRATCH_STORE(ra, 12) move a1, rSELF # a0=methodToCall, a1=rSELF la t9, dvmFastMethodTraceEnter jalr t9 lw gp, STACK_OFFSET_GP(sp) # restore a0-a2 and ra SCRATCH_LOAD(ra, 12) SCRATCH_LOAD(a2, 8) SCRATCH_LOAD(a1, 4) SCRATCH_LOAD(a0, 0) #endif RETURN # return to the callee-chaining cell