1 %verify "executed" 2 %verify "negative array length" 3 %verify "allocation fails" 4 /* 5 * Allocate an array of objects, specified with the array class 6 * and a count. 7 * 8 * The verifier guarantees that this is an array class, so we don't 9 * check for it here. 10 */ 11 /* new-array/jumbo vBBBB, vCCCC, class@AAAAAAAA */ 12 FETCH(a2, 1) # a2<- aaaa (lo) 13 FETCH(a3, 2) # a3<- AAAA (hi) 14 FETCH(a0, 4) # a0<- vCCCC 15 sll a3,a3,16 # 16 or a2, a2, a3 # a2<- AAAAaaaa 17 18 LOAD_rSELF_methodClassDex(a3) # a3 <- pDvmDex 19 GET_VREG(a1, a0) # a1 <- vCCCC (array length) 20 LOAD_base_offDvmDex_pResClasses(a3, a3) # a3 <- pDvmDex->pResClasses 21 LOAD_eas2(a0, a3, a2) # a0 <- resolved class 22 # check length 23 bltz a1, common_errNegativeArraySize # negative length, bail - len in a1 24 EXPORT_PC() # req'd for resolve, alloc 25 # already resolved? 26 beqz a0, .L${opcode}_resolve # not resolved, 27 b .L${opcode}_finish 28 %break 29 30 /* 31 * Finish allocation. 32 * 33 * a0 holds class 34 * a1 holds array length 35 */ 36 .L${opcode}_finish: 37 li a2, ALLOC_DONT_TRACK # don't track in local refs table 38 JAL(dvmAllocArrayByClass) # v0 <- call(clazz, length, flags) 39 FETCH(a2, 3) # r2<- vBBBB 40 # failed? 41 beqz v0, common_exceptionThrown # yes, handle the exception 42 FETCH_ADVANCE_INST(5) # advance rPC, load rINST 43 GET_INST_OPCODE(t0) # extract opcode from rINST 44 SET_VREG(v0, a2) # vBBBB <- v0 45 GOTO_OPCODE(t0) # jump to next instruction 46 #%break 47 48 49 50 /* 51 * Resolve class. (This is an uncommon case.) 52 * 53 * a1 holds array length 54 * a2 holds class ref AAAAAAAA 55 */ 56 .L${opcode}_resolve: 57 LOAD_rSELF_method(a3) # a3 <- self->method 58 move rOBJ, a1 # rOBJ <- length (save) 59 move a1, a2 # a1 <- AAAAAAAA 60 li a2, 0 # a2 <- false 61 LOAD_base_offMethod_clazz(a0, a3) # a0 <- method->clazz 62 JAL(dvmResolveClass) # v0 <- call(clazz, ref) 63 move a1, rOBJ # a1 <- length (restore) 64 # got null? 65 beqz v0, common_exceptionThrown # yes, handle exception 66 move a0, v0 67 b .L${opcode}_finish # continue with to ${opcode}_finish 68 69 70
