| /* |
| * Unwind a frame from the Dalvik stack for compiled OP_RETURN_XXX. |
| * If the stored value in returnAddr |
| * is non-zero, the caller is compiled by the JIT thus return to the |
| * address in the code cache following the invoke instruction. Otherwise |
| * return to the special dvmJitToInterpNoChain entry point. |
| */ |
| #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) |
| |
| # a0=rSELF |
| move a0, rSELF |
| la t9, dvmFastMethodTraceExit |
| 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 |
| SAVEAREA_FROM_FP(a0, rFP) # a0<- saveArea (old) |
| lw t0, offStackSaveArea_prevFrame(a0) # t0<- saveArea->prevFrame |
| lbu t1, offThread_breakFlags(rSELF) # t1<- breakFlags |
| lw rPC, offStackSaveArea_savedPc(a0) # rPC<- saveArea->savedPc |
| #if !defined(WITH_SELF_VERIFICATION) |
| lw t2, offStackSaveArea_returnAddr(a0) # t2<- chaining cell ret |
| #else |
| move t2, zero # disable chaining |
| #endif |
| lw a2, offStackSaveArea_method - sizeofStackSaveArea(t0) |
| # a2<- method we're returning to |
| #if !defined(WITH_SELF_VERIFICATION) |
| beq a2, zero, 1f # bail to interpreter |
| #else |
| bne a2, zero, 2f |
| JALR(ra) # punt to interpreter and compare state |
| # DOUG: assume this does not return ??? |
| 2: |
| #endif |
| la t4, .LdvmJitToInterpNoChainNoProfile # defined in footer.S |
| lw a1, (t4) |
| move rFP, t0 # publish new FP |
| beq a2, zero, 4f |
| lw t0, offMethod_clazz(a2) # t0<- method->clazz |
| 4: |
| |
| sw a2, offThread_method(rSELF) # self->method = newSave->method |
| lw a0, offClassObject_pDvmDex(t0) # a0<- method->clazz->pDvmDex |
| sw rFP, offThread_curFrame(rSELF) # self->curFrame = fp |
| add rPC, rPC, 3*2 # publish new rPC |
| sw a0, offThread_methodClassDex(rSELF) |
| movn t2, zero, t1 # check the breadFlags and |
| # clear the chaining cell address |
| sw t2, offThread_inJitCodeCache(rSELF) # in code cache or not |
| beq t2, zero, 3f # chaining cell exists? |
| JALR(t2) # jump to the chaining cell |
| # DOUG: assume this does not return ??? |
| 3: |
| #if defined(WITH_JIT_TUNING) |
| li a0, kCallsiteInterpreted |
| #endif |
| j a1 # callsite is interpreted |
| 1: |
| sw zero, offThread_inJitCodeCache(rSELF) # reset inJitCodeCache |
| SAVE_PC_TO_SELF() # SAVE_PC_FP_TO_SELF() |
| SAVE_FP_TO_SELF() |
| la t4, .LdvmMterpStdBail # defined in footer.S |
| lw a2, (t4) |
| move a0, rSELF # Expecting rSELF in a0 |
| JALR(a2) # exit the interpreter |
| # DOUG: assume this does not return ??? |
