%verify "executed" %verify "negative array length" %verify "allocation fails" /* * Allocate an array of objects, specified with the array class * and a count. * * The verifier guarantees that this is an array class, so we don't * check for it here. */ /* new-array vA, vB, class@CCCC */ mov r0, rINST, lsr #12 @ r0<- B FETCH(r2, 1) @ r2<- CCCC ldr r3, [rSELF, #offThread_methodClassDex] @ r3<- pDvmDex GET_VREG(r1, r0) @ r1<- vB (array length) ldr r3, [r3, #offDvmDex_pResClasses] @ r3<- pDvmDex->pResClasses cmp r1, #0 @ check length ldr r0, [r3, r2, lsl #2] @ r0<- resolved class bmi common_errNegativeArraySize @ negative length, bail - len in r1 cmp r0, #0 @ already resolved? EXPORT_PC() @ req'd for resolve, alloc bne .L${opcode}_finish @ resolved, continue b .L${opcode}_resolve @ do resolve now %break /* * Resolve class. (This is an uncommon case.) * * r1 holds array length * r2 holds class ref CCCC */ .L${opcode}_resolve: ldr r3, [rSELF, #offThread_method] @ r3<- self->method mov r9, r1 @ r9<- length (save) mov r1, r2 @ r1<- CCCC mov r2, #0 @ r2<- false ldr r0, [r3, #offMethod_clazz] @ r0<- method->clazz bl dvmResolveClass @ r0<- call(clazz, ref) cmp r0, #0 @ got null? mov r1, r9 @ r1<- length (restore) beq common_exceptionThrown @ yes, handle exception @ fall through to ${opcode}_finish /* * Finish allocation. * * r0 holds class * r1 holds array length */ .L${opcode}_finish: mov r2, #ALLOC_DONT_TRACK @ don't track in local refs table bl dvmAllocArrayByClass @ r0<- call(clazz, length, flags) cmp r0, #0 @ failed? mov r2, rINST, lsr #8 @ r2<- A+ beq common_exceptionThrown @ yes, handle the exception FETCH_ADVANCE_INST(2) @ advance rPC, load rINST and r2, r2, #15 @ r2<- A GET_INST_OPCODE(ip) @ extract opcode from rINST SET_VREG(r0, r2) @ vA<- r0 GOTO_OPCODE(ip) @ jump to next instruction