diff options
Diffstat (limited to 'vm/compiler/template/armv5te/TEMPLATE_INVOKE_METHOD_CHAIN.S')
| -rw-r--r-- | vm/compiler/template/armv5te/TEMPLATE_INVOKE_METHOD_CHAIN.S | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/vm/compiler/template/armv5te/TEMPLATE_INVOKE_METHOD_CHAIN.S b/vm/compiler/template/armv5te/TEMPLATE_INVOKE_METHOD_CHAIN.S new file mode 100644 index 0000000..a137d22 --- /dev/null +++ b/vm/compiler/template/armv5te/TEMPLATE_INVOKE_METHOD_CHAIN.S @@ -0,0 +1,45 @@ + /* + * 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. + */ + @ r0 = methodToCall, r1 = returnCell, rPC = dalvikCallsite + @ methodToCall is guaranteed to be non-native +.LinvokeChain: + ldrh r7, [r0, #offMethod_registersSize] @ r7<- methodToCall->regsSize + ldrh r2, [r0, #offMethod_outsSize] @ r2<- methodToCall->outsSize + ldr r9, [rGLUE, #offGlue_interpStackEnd] @ r9<- interpStackEnd + ldr r8, [rGLUE, #offGlue_pSelfSuspendCount] @ r8<- &suspendCount + add r3, r1, #1 @ Thumb addr is odd + SAVEAREA_FROM_FP(r1, rFP) @ r1<- stack save area + sub r1, r1, r7, lsl #2 @ r1<- newFp (old savearea - regsSize) + SAVEAREA_FROM_FP(r10, r1) @ r10<- stack save area + add r12, lr, #2 @ setup the punt-to-interp address + sub r10, r10, r2, lsl #2 @ r10<- bottom (newsave - outsSize) + ldr r8, [r8] @ r8<- suspendCount (int) + cmp r10, r9 @ bottom < interpStackEnd? + bxlo r12 @ return to raise stack overflow excep. + @ r1 = newFP, r0 = methodToCall, r3 = returnCell, rPC = dalvikCallsite + ldr r9, [r0, #offMethod_clazz] @ r9<- method->clazz + str rPC, [rFP, #(offStackSaveArea_currentPc - sizeofStackSaveArea)] + str rPC, [r1, #(offStackSaveArea_savedPc - sizeofStackSaveArea)] + ldr rPC, [r0, #offMethod_insns] @ rPC<- methodToCall->insns + + + @ set up newSaveArea + str rFP, [r1, #(offStackSaveArea_prevFrame - sizeofStackSaveArea)] + str r3, [r1, #(offStackSaveArea_returnAddr - sizeofStackSaveArea)] + str r0, [r1, #(offStackSaveArea_method - sizeofStackSaveArea)] + cmp r8, #0 @ suspendCount != 0 + bxne r12 @ bail to the interpreter + + ldr r3, [r9, #offClassObject_pDvmDex] @ r3<- method->clazz->pDvmDex + ldr r2, [rGLUE, #offGlue_self] @ r2<- glue->self + + @ Update "glue" values for the new method + str r0, [rGLUE, #offGlue_method] @ glue->method = methodToCall + str r3, [rGLUE, #offGlue_methodClassDex] @ glue->methodClassDex = ... + mov rFP, r1 @ fp = newFp + str rFP, [r2, #offThread_curFrame] @ self->curFrame = newFp + + bx lr @ return to the callee-chaining cell |