1 %default { "postbarrier":"@ no-op ", "prebarrier":"@ no-op " } 2 %verify "executed" 3 %verify "field already resolved" 4 %verify "field not yet resolved" 5 %verify "field cannot be resolved" 6 /* 7 * 32-bit SPUT handler for objects 8 * 9 * for: sput-object, sput-object-volatile 10 */ 11 /* op vAA, field@BBBB */ 12 ldr r2, [rSELF, #offThread_methodClassDex] @ r2<- DvmDex 13 FETCH(r1, 1) @ r1<- field ref BBBB 14 ldr r10, [r2, #offDvmDex_pResFields] @ r10<- dvmDex->pResFields 15 ldr r0, [r10, r1, lsl #2] @ r0<- resolved StaticField ptr 16 cmp r0, #0 @ is resolved entry null? 17 beq .L${opcode}_resolve @ yes, do resolve 18 .L${opcode}_finish: @ field ptr in r0 19 mov r2, rINST, lsr #8 @ r2<- AA 20 FETCH_ADVANCE_INST(2) @ advance rPC, load rINST 21 GET_VREG(r1, r2) @ r1<- fp[AA] 22 ldr r2, [rSELF, #offThread_cardTable] @ r2<- card table base 23 ldr r9, [r0, #offField_clazz] @ r9<- field->clazz 24 GET_INST_OPCODE(ip) @ extract opcode from rINST 25 $prebarrier @ releasing store 26 b .L${opcode}_end 27 %break 28 29 30 .L${opcode}_end: 31 str r1, [r0, #offStaticField_value] @ field<- vAA 32 $postbarrier 33 cmp r1, #0 @ stored a null object? 34 strneb r2, [r2, r9, lsr #GC_CARD_SHIFT] @ mark card based on obj head 35 GOTO_OPCODE(ip) @ jump to next instruction 36 37 /* Continuation if the field has not yet been resolved. 38 * r1: BBBB field ref 39 * r10: dvmDex->pResFields 40 */ 41 .L${opcode}_resolve: 42 ldr r2, [rSELF, #offThread_method] @ r2<- current method 43 #if defined(WITH_JIT) 44 add r10, r10, r1, lsl #2 @ r10<- &dvmDex->pResFields[field] 45 #endif 46 EXPORT_PC() @ resolve() could throw, so export now 47 ldr r0, [r2, #offMethod_clazz] @ r0<- method->clazz 48 bl dvmResolveStaticField @ r0<- resolved StaticField ptr 49 cmp r0, #0 @ success? 50 beq common_exceptionThrown @ no, handle exception 51 #if defined(WITH_JIT) 52 /* 53 * If the JIT is actively building a trace we need to make sure 54 * that the field is fully resolved before including this instruction. 55 */ 56 bl common_verifyField 57 #endif 58 b .L${opcode}_finish @ resume 59 60
