TEMPLATE_RETURN.S revision 5cc61d70ec727aa22f58463bf7940cc717cf3eb1
1 /* 2 * Unwind a frame from the Dalvik stack for compiled OP_RETURN_XXX. 3 * If the stored value in returnAddr 4 * is non-zero, the caller is compiled by the JIT thus return to the 5 * address in the code cache following the invoke instruction. Otherwise 6 * return to the special dvmJitToInterpNoChain entry point. 7 */ 8#if defined(WITH_INLINE_PROFILING) 9 stmfd sp!, {r0-r2,lr} @ preserve live registers 10 mov r0, r6 11 @ r0=rGlue 12 LDR_PC_LR ".LdvmFastJavaMethodTraceExit" 13 ldmfd sp!, {r0-r2,lr} @ restore live registers 14#endif 15 SAVEAREA_FROM_FP(r0, rFP) @ r0<- saveArea (old) 16 ldr r10, [r0, #offStackSaveArea_prevFrame] @ r10<- saveArea->prevFrame 17 ldr r8, [rGLUE, #offGlue_pSelfSuspendCount] @ r8<- &suspendCount 18 ldr rPC, [r0, #offStackSaveArea_savedPc] @ rPC<- saveArea->savedPc 19#if !defined(WITH_SELF_VERIFICATION) 20 ldr r9, [r0, #offStackSaveArea_returnAddr] @ r9<- chaining cell ret 21#else 22 mov r9, #0 @ disable chaining 23#endif 24 ldr r2, [r10, #(offStackSaveArea_method - sizeofStackSaveArea)] 25 @ r2<- method we're returning to 26 ldr r3, [rGLUE, #offGlue_self] @ r3<- glue->self 27 cmp r2, #0 @ break frame? 28#if !defined(WITH_SELF_VERIFICATION) 29 beq 1f @ bail to interpreter 30#else 31 blxeq lr @ punt to interpreter and compare state 32#endif 33 ldr r1, .LdvmJitToInterpNoChainNoProfile @ defined in footer.S 34 mov rFP, r10 @ publish new FP 35 ldrne r10, [r2, #offMethod_clazz] @ r10<- method->clazz 36 ldr r8, [r8] @ r8<- suspendCount 37 38 str r2, [rGLUE, #offGlue_method]@ glue->method = newSave->method 39 ldr r0, [r10, #offClassObject_pDvmDex] @ r0<- method->clazz->pDvmDex 40 str rFP, [r3, #offThread_curFrame] @ self->curFrame = fp 41 add rPC, rPC, #6 @ publish new rPC (advance 6 bytes) 42 str r0, [rGLUE, #offGlue_methodClassDex] 43 cmp r8, #0 @ check the suspendCount 44 movne r9, #0 @ clear the chaining cell address 45 str r9, [r3, #offThread_inJitCodeCache] @ in code cache or not 46 cmp r9, #0 @ chaining cell exists? 47 blxne r9 @ jump to the chaining cell 48#if defined(WITH_JIT_TUNING) 49 mov r0, #kCallsiteInterpreted 50#endif 51 mov pc, r1 @ callsite is interpreted 521: 53 stmia rGLUE, {rPC, rFP} @ SAVE_PC_FP_TO_GLUE() 54 ldr r2, .LdvmMterpStdBail @ defined in footer.S 55 mov r1, #0 @ changeInterp = false 56 mov r0, rGLUE @ Expecting rGLUE in r0 57 blx r2 @ exit the interpreter 58