CHAR const* AOC_DX_MGR::get_class_name_by_method_id(UINT method_idx)
{
DexMethodId const* method_id = dexGetMethodId(m_df, method_idx);
IS_TRUE0(method_id);
CHAR const* class_name = dexStringByTypeIdx(m_df, method_id->classIdx);
return class_name;
}
CHAR const* AOC_DX_MGR::get_method_name(UINT method_idx)
{
DexMethodId const* method_id = dexGetMethodId(m_df, method_idx);
IS_TRUE0(method_id);
CHAR const* method_name = dexStringById(m_df, method_id->nameIdx);
IS_TRUE0(method_name);
return method_name;
}
/*
* Dump a method.
*/
void dumpMethod(DexFile* pDexFile, const char* fileName,
const DexMethod* pDexMethod, int i)
{
const DexMethodId* pMethodId;
const DexCode* pCode;
const char* classDescriptor;
const char* methodName;
int firstLine;
/* abstract and native methods don't get listed */
if (pDexMethod->codeOff == 0)
return;
pMethodId = dexGetMethodId(pDexFile, pDexMethod->methodIdx);
methodName = dexStringById(pDexFile, pMethodId->nameIdx);
classDescriptor = dexStringByTypeIdx(pDexFile, pMethodId->classIdx);
pCode = dexGetCode(pDexFile, pDexMethod);
assert(pCode != NULL);
/*
* If the filename is empty, then set it to something printable
* so that it is easier to parse.
*
* TODO: A method may override its class's default source file by
* specifying a different one in its debug info. This possibility
* should be handled here.
*/
if (fileName == NULL || fileName[0] == 0) {
fileName = "(none)";
}
firstLine = -1;
dexDecodeDebugInfo(pDexFile, pCode, classDescriptor, pMethodId->protoIdx,
pDexMethod->accessFlags, positionsCallback, NULL, &firstLine);
char* className = descriptorToDot(classDescriptor);
char* desc = dexCopyDescriptorFromMethodId(pDexFile, pMethodId);
u4 insnsOff = pDexMethod->codeOff + offsetof(DexCode, insns);
if (gParms.methodToFind != NULL &&
(strcmp(gParms.classToFind, className) != 0 ||
strcmp(gParms.methodToFind, methodName) != 0))
{
goto skip;
}
printf("0x%08x %d %s %s %s %s %d\n",
insnsOff, pCode->insnsSize * 2,
className, methodName, desc,
fileName, firstLine);
skip:
free(desc);
free(className);
}
/*
* Dump the positions list.
*/
void dumpPositions(DexFile* pDexFile, const DexCode* pCode,
const DexMethod *pDexMethod)
{
printf(" positions : \n");
const DexMethodId *pMethodId
= dexGetMethodId(pDexFile, pDexMethod->methodIdx);
const char *classDescriptor
= dexStringByTypeIdx(pDexFile, pMethodId->classIdx);
dexDecodeDebugInfo(pDexFile, pCode, classDescriptor, pMethodId->protoIdx,
pDexMethod->accessFlags, dumpPositionsCb, NULL, NULL);
}
/* Fill in the configuration Map from config file priority only*/
void dvmDexConfigMap(DvmDex* pDvmDex, DvmConfigMap* pconfigMap){
//ToDo: Handle this exception later
if(pDvmDex==NULL) return;
if(!pDvmDex->isConfigFile) return;
const char* curMethodName =NULL;
const char* sensitiveMethodName =NULL;
unsigned int priority = 0;
const DexClassDef* pDexClassDef = NULL;
const DexMethodId* pDexMethodId = NULL;
unsigned int methodIdsSize = pDvmDex->pDexFile->pHeader->methodIdsSize;
DvmConfigFile* pConfigFile = pDvmDex->pConfigFile;
//DvmConfigMap configMap; // it is already set in the previous function so we will access the pointer directly
for(int i =0; i<pConfigFile->numSensitiveClasses; i++){
pDexClassDef = dexFindClass(pDvmDex->pDexFile,pConfigFile->sensitiveClasses.at(i).className.c_str() );
if(pDexClassDef==NULL){
ALOGE("dvmDexConfigMap: pDexClassDef == NULL");
return;
}
unsigned int classIdx = dexGetIndexForClassDef(pDvmDex->pDexFile,pDexClassDef);
// ALOGD("dvmDexConfigMap: classIdx:%d",classIdx); //this is correct // 256
//sensitiveClassIdx.push_back(classIdx);
//((DexClassDef)(pDvmDex->pDexFile->pClassDefs[classIdx])).isSensitiveClass = 1;
// pDvmDex->pDexFile->pClassDefs[classIdx].isSensitiveClass = 1;
for(int j=0; j< pConfigFile->sensitiveClasses.at(i).numSensitiveMethods; j++){
sensitiveMethodName = pConfigFile->sensitiveClasses.at(i).sensitiveMethods.at(j).methodName.c_str();
// ALOGD("sensitiveMethodName = %s",sensitiveMethodName);
priority = pConfigFile->sensitiveClasses.at(i).sensitiveMethods.at(j).methodparam.priority;
// ALOGD("priority =%d",priority );
for(unsigned int methodIdx=0; methodIdx<methodIdsSize; methodIdx++){
pDexMethodId = dexGetMethodId(pDvmDex->pDexFile,methodIdx);
curMethodName = dexStringById(pDvmDex->pDexFile, pDexMethodId->nameIdx);
//if(curMethodName) ALOGD("curMethodName = %s",curMethodName);
if(curMethodName == NULL) return;
if(strcmp(curMethodName,sensitiveMethodName) == 0){
pconfigMap->insert(std::make_pair(key(classIdx,methodIdx),priority));
// ALOGD("After mapping");
}
}
}
}
}
/*
* Get information about a method.
*/
bool getMethodInfo(DexFile* pDexFile, u4 methodIdx, FieldMethodInfo* pMethInfo)
{
const DexMethodId* pMethodId;
if (methodIdx >= pDexFile->pHeader->methodIdsSize)
return false;
pMethodId = dexGetMethodId(pDexFile, methodIdx);
pMethInfo->name = dexStringById(pDexFile, pMethodId->nameIdx);
pMethInfo->signature = dexCopyDescriptorFromMethodId(pDexFile, pMethodId);
pMethInfo->classDescriptor =
dexStringByTypeIdx(pDexFile, pMethodId->classIdx);
return true;
}
/* Is called from vm/JarFile.cpp*/
void dvmDexConfigMethodMap(DvmDex* pDvmDex, DvmConfigMethodMap* pconfigMethodMap){
//ToDo: Handle this exception later
if(pDvmDex==NULL) return;
if(!pDvmDex->isConfigFile) return;
const char* curMethodName =NULL;
const char* sensitiveMethodName =NULL;
const DexClassDef* pDexClassDef = NULL;
const DexMethodId* pDexMethodId = NULL;
unsigned int methodIdsSize = pDvmDex->pDexFile->pHeader->methodIdsSize;
DvmConfigFile* pConfigFile = pDvmDex->pConfigFile;
for(int i =0; i<pConfigFile->numSensitiveClasses; i++){
pDexClassDef = dexFindClass(pDvmDex->pDexFile,pConfigFile->sensitiveClasses.at(i).className.c_str() );
if(pDexClassDef==NULL){
ALOGE("dvmDexConfigMap: pDexClassDef == NULL");
return;
}
unsigned int classIdx = dexGetIndexForClassDef(pDvmDex->pDexFile,pDexClassDef);
for(int j=0; j< pConfigFile->sensitiveClasses.at(i).numSensitiveMethods; j++){
sensitiveMethodName = pConfigFile->sensitiveClasses.at(i).sensitiveMethods.at(j).methodName.c_str();
for(unsigned int methodIdx=0; methodIdx<methodIdsSize; methodIdx++){
pDexMethodId = dexGetMethodId(pDvmDex->pDexFile,methodIdx);
curMethodName = dexStringById(pDvmDex->pDexFile, pDexMethodId->nameIdx);
if(curMethodName == NULL) return;
if(strcmp(curMethodName,sensitiveMethodName) == 0){
pconfigMethodMap->insert(std::make_pair(key(classIdx,methodIdx), pConfigFile->sensitiveClasses.at(i).sensitiveMethods.at(j).methodparam));
}
}
}
}
//DEBUG
// if(pDvmDex->pconfigMethodMap!=NULL){
// ALOGD("dvmDexConfigMapMethodDebug");
// if(pDvmDex->pconfigMethodMap==NULL) return;
// if(pDvmDex->pconfigMethodMap->size() ==0 ) return;
//
// ALOGD("dvmDexConfigMapDebug: pDvmConfigMap exists and size = %d",pDvmDex->pconfigMethodMap->size() );
//
// for(DvmConfigMethodMapIter it=pDvmDex->pconfigMethodMap->begin(); it!=pDvmDex->pconfigMethodMap->end(); ++it){
// ALOGD("ClassID:%d MethodID:%d ==> tag:%d, priority:%d, powerindex:%d, tempindex:%d, voltindex:%d ",it->first.first, it->first.second, it->second.tag, it->second.priority, it->second.ids.first, it->second.ids.second, it->second.ids.third);
// }
// }
}
// Based on dvmResolveMethod.
static void preloadDexCachesResolveMethod(DvmDex* pDvmDex,
uint32_t methodIdx,
MethodType methodType) {
Method* method = dvmDexGetResolvedMethod(pDvmDex, methodIdx);
if (method != NULL) {
return;
}
const DexFile* pDexFile = pDvmDex->pDexFile;
const DexMethodId* pMethodId = dexGetMethodId(pDexFile, methodIdx);
ClassObject* clazz = dvmDexGetResolvedClass(pDvmDex, pMethodId->classIdx);
if (clazz == NULL) {
return;
}
// Skip static methods for uninitialized classes because a filled
// cache entry implies the class is initialized.
if ((methodType == METHOD_STATIC) && !dvmIsClassInitialized(clazz)) {
return;
}
const char* methodName = dexStringById(pDexFile, pMethodId->nameIdx);
DexProto proto;
dexProtoSetFromMethodId(&proto, pDexFile, pMethodId);
if (methodType == METHOD_DIRECT) {
method = dvmFindDirectMethod(clazz, methodName, &proto);
} else if (methodType == METHOD_STATIC) {
method = dvmFindDirectMethodHier(clazz, methodName, &proto);
} else {
method = dvmFindVirtualMethodHier(clazz, methodName, &proto);
}
if (method == NULL) {
return;
}
// ALOGI("VMRuntime.preloadDexCaches found method %s.%s",
// clazz->descriptor, methodName);
dvmDexSetResolvedMethod(pDvmDex, methodIdx, method);
}
/*
* Dump a method.
*/
void dumpMethod(DexFile* pDexFile, const DexMethod* pDexMethod, int i)
{
const DexMethodId* pMethodId;
const char* backDescriptor;
const char* name;
char* typeDescriptor;
char* accessStr;
pMethodId = dexGetMethodId(pDexFile, pDexMethod->methodIdx);
name = dexStringById(pDexFile, pMethodId->nameIdx);
typeDescriptor = dexCopyDescriptorFromMethodId(pDexFile, pMethodId);
backDescriptor = dexStringByTypeIdx(pDexFile, pMethodId->classIdx);
accessStr = createAccessFlagStr(pDexMethod->accessFlags,
kAccessForMethod);
printf(" #%d : (in %s)\n", i, backDescriptor);
printf(" name : '%s'\n", name);
printf(" type : '%s'\n", typeDescriptor);
printf(" access : 0x%04x (%s)\n",
pDexMethod->accessFlags, accessStr);
if (pDexMethod->codeOff == 0) {
printf(" code : (none)\n");
} else {
printf(" code -\n");
dumpCode(pDexFile, pDexMethod);
}
if (gOptions.disassemble)
putchar('\n');
free(typeDescriptor);
free(accessStr);
}
//Dump LIR stmts stored in fu->lirList array.
void dump_lir2(LIR * lir, DexFile * df, INT pos)
{
if (g_tfile == NULL || lir == NULL) return;
if (pos < 0) {
fprintf(g_tfile, "%s", LIR_name(lir));
} else {
fprintf(g_tfile, "(%dth)%s", pos, LIR_name(lir));
}
switch (LIR_opcode(lir)) {
case LOP_NOP:
break;
case LOP_CONST:
switch (LIR_dt(lir)) {
case LIR_JDT_unknown:
fprintf(g_tfile, ", INT");
if (is_s4(LIR_int_imm(lir)) && LIR_res(lir) < 16) {
//AB
fprintf(g_tfile, ", v%d <- %d",
LIR_res(lir), (INT)LIR_int_imm(lir));
} else if (is_s16(LIR_int_imm(lir))) {
//AABBBB
fprintf(g_tfile, ", v%d <- %d",
LIR_res(lir), (INT)LIR_int_imm(lir));
} else {
//AABBBBBBBB
fprintf(g_tfile, ", v%d <- %d",
LIR_res(lir), (INT)LIR_int_imm(lir));
}
break;
case LIR_JDT_wide:
fprintf(g_tfile, ", %s", get_dt_name(lir));
if (is_swide16(LIR_int_imm(lir))) {
//AABBBB
fprintf(g_tfile, ", (v%d,v%d) <- %d",
LIR_res(lir), LIR_res(lir) + 1, (INT)LIR_int_imm(lir));
} else if (is_swide32(LIR_int_imm(lir))) {
//AABBBBBBBB
fprintf(g_tfile, ", (v%d,v%d) <- %d",
LIR_res(lir), LIR_res(lir) + 1, (INT)LIR_int_imm(lir));
} else {
//AABBBBBBBBBBBBBBBB
fprintf(g_tfile, ", (v%d,v%d) <- %lld",
LIR_res(lir), LIR_res(lir) + 1, LIR_int_imm(lir));
}
break;
default:
/* It seems dex does not distinguish
float and integer const. And regard float as
32bit integer, double will be 64bit integer. */
IS_TRUE0(0);
}
break;
case LOP_RETURN:
{
switch (LIR_dt(lir)) {
case LIR_JDT_unknown: //return preg.
fprintf(g_tfile, ", INT");
fprintf(g_tfile, ", v%d", LIR_res(lir));
break;
case LIR_JDT_void: //No return value.
break;
case LIR_JDT_object: //return object.
fprintf(g_tfile, ", obj_ptr:v%d", LIR_res(lir));
break;
case LIR_JDT_wide:
fprintf(g_tfile, ", %s", get_dt_name(lir));
fprintf(g_tfile, ", (v%d,v%d)", LIR_res(lir), LIR_res(lir) + 1);
break;
default: IS_TRUE0(0);
}
}
break;
case LOP_THROW: //AA
//Throws an exception object.
//The reference of the exception object is in vx.
fprintf(g_tfile, ", v%d", LIR_res(lir));
break;
case LOP_MONITOR_ENTER :
fprintf(g_tfile, ", v%d", LIR_res(lir));
break;
case LOP_MONITOR_EXIT :
break;
case LOP_MOVE_RESULT :
{
//Move function return value to regisiter.
//AA
LIRAOp * p = (LIRAOp*)lir;
switch (LIR_dt(lir)) {
case LIR_JDT_unknown: //lexOpcode = lc_mov_result32; break;
fprintf(g_tfile, ", INT");
fprintf(g_tfile, ", retval -> v%d", LIR_res(lir));
break;
case LIR_JDT_wide: //lexOpcode = lc_mov_result64; break;
fprintf(g_tfile, ", %s", get_dt_name(lir));
fprintf(g_tfile, ", retval -> (v%d,v%d)",
LIR_res(lir), LIR_res(lir) + 1);
break;
case LIR_JDT_object: //lexOpcode = lc_mov_result_object; break;
fprintf(g_tfile, ", obj-ptr");
fprintf(g_tfile, ", retval -> v%d", LIR_res(lir));
break;
}
}
break;
case LOP_MOVE_EXCEPTION : //AA
fprintf(g_tfile, ", v%d", LIR_res(lir));
break;
case LOP_GOTO : //AABBBBBBBB
{
LIRGOTOOp * p = (LIRGOTOOp*)lir;
fprintf(g_tfile, ", (lirIdx)%dth", p->target);
}
break;
case LOP_MOVE :
switch (LIR_dt(lir)) {
case LIR_JDT_unknown:
fprintf(g_tfile, ", INT");
if ((LIR_op0(lir) | LIR_res(lir)) < 16) {
//AB
fprintf(g_tfile, ", v%d <- v%d", LIR_res(lir), LIR_op0(lir));
} else if (LIR_res(lir) < 256) {
//AABBBB
fprintf(g_tfile, ", v%d <- v%d", LIR_res(lir), LIR_op0(lir));
} else {
//AAAABBBB
fprintf(g_tfile, ", v%d <- v%d", LIR_res(lir), LIR_op0(lir));
}
break;
case LIR_JDT_wide:
fprintf(g_tfile, ", %s", get_dt_name(lir));
if ((LIR_op0(lir) | LIR_res(lir)) < 16) {
//AB
fprintf(g_tfile, ", (v%d,v%d) <- (v%d,v%d)",
LIR_res(lir), LIR_res(lir) + 1,
LIR_op0(lir), LIR_op0(lir) + 1);
} else if (LIR_res(lir) < 256) {
//AABBBB
fprintf(g_tfile, ", (v%d,v%d) <- (v%d,v%d)",
LIR_res(lir), LIR_res(lir) + 1,
LIR_op0(lir), LIR_op0(lir) + 1);
} else {
//AAAABBBB
fprintf(g_tfile, ", (v%d,v%d) <- (v%d,v%d)",
LIR_res(lir), LIR_res(lir) + 1,
LIR_op0(lir), LIR_op0(lir) + 1);
}
break;
case LIR_JDT_object:
fprintf(g_tfile, ", obj-ptr");
if ((LIR_op0(lir) | LIR_res(lir)) < 16) {
//AB
fprintf(g_tfile, ", v%d <- v%d", LIR_res(lir), LIR_op0(lir));
} else if (LIR_res(lir) < 256) {
//AABBBB
fprintf(g_tfile, ", v%d <- v%d", LIR_res(lir), LIR_op0(lir));
} else {
//AAAABBBB
fprintf(g_tfile, ", v%d <- v%d", LIR_res(lir), LIR_op0(lir));
}
break;
}
break;
case LOP_NEG : //AB
case LOP_NOT : //AB
fprintf(g_tfile, ", %s", get_dt_name(lir));
if (is_wide(lir)) {
fprintf(g_tfile, ", (v%d,v%d) <- (v%d,v%d)",
LIR_res(lir), LIR_res(lir)+1, LIR_op0(lir), LIR_op0(lir)+1);
} else {
fprintf(g_tfile, ", v%d <- v%d", LIR_res(lir), LIR_op0(lir));
}
break;
case LOP_CONVERT : //AB
switch (LIR_dt(lir)) {
case LIR_convert_i2l:
fprintf(g_tfile, ", INT->LONG");
fprintf(g_tfile, ", (v%d,v%d) <- v%d",
LIR_res(lir), LIR_res(lir)+1, LIR_op0(lir));
break;
case LIR_convert_i2f: fprintf(g_tfile, ", INT->FLOAT"); break;
case LIR_convert_i2d:
fprintf(g_tfile, ", INT->DOUBLE");
fprintf(g_tfile, ", (v%d,v%d) <- v%d",
LIR_res(lir), LIR_res(lir)+1, LIR_op0(lir));
break;
case LIR_convert_l2i:
fprintf(g_tfile, ", LONG->INT");
fprintf(g_tfile, ", v%d <- (v%d,v%d)",
LIR_res(lir), LIR_op0(lir), LIR_op0(lir)+1);
break;
case LIR_convert_l2f:
fprintf(g_tfile, ", LONG->FLOAT");
fprintf(g_tfile, ", v%d <- (v%d,v%d)",
LIR_res(lir), LIR_op0(lir), LIR_op0(lir)+1);
break;
case LIR_convert_l2d:
fprintf(g_tfile, ", LONG->DOUBLE");
fprintf(g_tfile, ", (v%d,v%d) <- (v%d,v%d)",
LIR_res(lir), LIR_res(lir)+1, LIR_op0(lir), LIR_op0(lir)+1);
break;
case LIR_convert_f2i: fprintf(g_tfile, ", FLOAT->INT"); break;
case LIR_convert_f2l:
fprintf(g_tfile, ", FLOAT->LONG");
fprintf(g_tfile, ", (v%d,v%d) <- v%d",
LIR_res(lir), LIR_res(lir)+1, LIR_op0(lir));
break;
case LIR_convert_f2d:
fprintf(g_tfile, ", FLOAT->DOUBLE");
fprintf(g_tfile, ", (v%d,v%d) <- v%d",
LIR_res(lir), LIR_res(lir)+1, LIR_op0(lir));
break;
case LIR_convert_d2i:
fprintf(g_tfile, ", DOUBLE->INT");
fprintf(g_tfile, ", v%d <- (v%d,v%d)",
LIR_res(lir), LIR_op0(lir), LIR_op0(lir)+1);
break;
case LIR_convert_d2l:
fprintf(g_tfile, ", DOUBLE->LONG");
fprintf(g_tfile, ", (v%d,v%d) <- (v%d,v%d)",
LIR_res(lir), LIR_res(lir)+1, LIR_op0(lir), LIR_op0(lir)+1);
break;
case LIR_convert_d2f:
fprintf(g_tfile, ", DOUBLE->FLOAT");
fprintf(g_tfile, ", v%d <- (v%d,v%d)",
LIR_res(lir), LIR_op0(lir), LIR_op0(lir)+1);
break;
case LIR_convert_i2b:
fprintf(g_tfile, ", INT->BOOL");
fprintf(g_tfile, ", v%d <- v%d", LIR_res(lir), LIR_op0(lir));
break;
case LIR_convert_i2c:
fprintf(g_tfile, ", INT->CHAR");
fprintf(g_tfile, ", v%d <- v%d", LIR_res(lir), LIR_op0(lir));
break;
case LIR_convert_i2s:
fprintf(g_tfile, ", INT->SHORT");
fprintf(g_tfile, ", v%d <- v%d", LIR_res(lir), LIR_op0(lir));
break;
default:
IS_TRUE0(0);
}
break;
case LOP_ADD_ASSIGN :
case LOP_SUB_ASSIGN :
case LOP_MUL_ASSIGN :
case LOP_DIV_ASSIGN :
case LOP_REM_ASSIGN :
case LOP_AND_ASSIGN :
case LOP_OR_ASSIGN :
case LOP_XOR_ASSIGN :
case LOP_SHL_ASSIGN :
case LOP_SHR_ASSIGN :
case LOP_USHR_ASSIGN:
fprintf(g_tfile, ", %s", get_dt_name(lir));
if (is_wide(lir)) {
fprintf(g_tfile, ", (v%d,v%d) <- (v%d,v%d), (v%d,v%d)",
LIR_res(lir), LIR_res(lir)+1,
LIR_res(lir), LIR_res(lir)+1,
LIR_op0(lir), LIR_op0(lir)+1);
} else {
fprintf(g_tfile, ", v%d <- v%d, v%d",
LIR_res(lir), LIR_res(lir), LIR_op0(lir));
}
break;
case LOP_ARRAY_LENGTH: //AABBBB
//Calculates the number of elements of the array referenced by vy
//and puts the length value into vx.
fprintf(g_tfile, ", v%d <- v%d", LIR_res(lir), LIR_op0(lir));
break;
case LOP_IFZ :
//AABBBB
switch (LIR_dt(lir)) {
case LIR_cond_EQ: fprintf(g_tfile, ", =="); break;
case LIR_cond_NE: fprintf(g_tfile, ", !="); break;
case LIR_cond_LT: fprintf(g_tfile, ", <"); break;
case LIR_cond_GE: fprintf(g_tfile, ", >="); break;
case LIR_cond_GT: fprintf(g_tfile, ", >"); break;
case LIR_cond_LE: fprintf(g_tfile, ", <="); break;
}
if (is_wide(lir)) {
fprintf(g_tfile, ", (v%d,v%d), 0, (lirIdx)%dth",
LIR_res(lir), LIR_res(lir)+1, LIR_op0(lir));
} else {
fprintf(g_tfile, ", v%d, 0, (lirIdx)%dth",
LIR_res(lir), LIR_op0(lir));
}
break;
case LOP_NEW_INSTANCE:
//AABBBB
//LIR_op0(lir) is class-type-id, not class-declaration-id.
IS_TRUE0(df);
fprintf(g_tfile, ", (obj_ptr)v%d <- (clsname<%d>)%s",
LIR_res(lir),
LIR_op0(lir),
get_class_name(df, LIR_op0(lir)));
break;
case LOP_CONST_STRING:
//AABBBB or AABBBBBBBB
IS_TRUE0(df);
fprintf(g_tfile, ", v%d <- (strofst<%d>)\"%s\"",
LIR_res(lir),
LIR_op0(lir),
dexStringById(df, LIR_op0(lir)));
break;
case LOP_CONST_CLASS :
//AABBBB
//const-class vx,type_id
//Moves the class object of a class identified by
//type_id (e.g. Object.class) into vx.
fprintf(g_tfile, ", v%d <- (clsname<%d>)%s",
LIR_res(lir),
LIR_op0(lir),
dexStringByTypeIdx(df, LIR_op0(lir)));
break;
case LOP_SGET :
//AABBBB
fprintf(g_tfile, ", %s", get_dt_name(lir));
IS_TRUE0(df);
fprintf(g_tfile, ", v%d <- (ofst<%d>)%s::%s",
LIR_res(lir),
LIR_op0(lir),
get_field_class_name(df, LIR_op0(lir)),
get_field_name(df, LIR_op0(lir)));
break;
case LOP_CHECK_CAST :
//AABBBB
IS_TRUE0(df);
fprintf(g_tfile, ", v%d '%s'",
LIR_res(lir),
dexStringByTypeIdx(df, LIR_op0(lir)));
break;
case LOP_SPUT :
{
//AABBBB
LIRABOp * p = (LIRABOp*)lir;
fprintf(g_tfile, ", %s", get_dt_name(lir));
IS_TRUE0(df);
if (is_wide(lir)) {
fprintf(g_tfile, ", (v%d,v%d) -> %s::%s",
LIR_res(lir), LIR_res(lir)+1,
get_field_class_name(df, LIR_op0(lir)),
get_field_name(df, LIR_op0(lir)));
} else {
fprintf(g_tfile, ", v%d -> %s::%s",
LIR_res(lir),
get_field_class_name(df, LIR_op0(lir)),
get_field_name(df, LIR_op0(lir)));
}
}
break;
case LOP_APUT :
//AABBCC
fprintf(g_tfile, ", %s", get_dt_name(lir));
IS_TRUE0(df);
if (is_wide(lir)) {
fprintf(g_tfile, ", (v%d,v%d) -> (array_base_ptr)v%d, (array_elem)v%d",
LIR_res(lir), LIR_res(lir)+1,
LIR_op0(lir), (UINT)LIR_op1(lir));
} else {
fprintf(g_tfile, ", v%d -> (array_base_ptr)v%d, (array_elem)v%d",
LIR_res(lir), LIR_op0(lir), (UINT)LIR_op1(lir));
}
break;
case LOP_AGET :
//AABBCC
fprintf(g_tfile, ", %s", get_dt_name(lir));
IS_TRUE0(df);
if (is_wide(lir)) {
fprintf(g_tfile, ", (v%d,v%d) <- (array_base_ptr)v%d, (array_elem)v%d",
LIR_res(lir), LIR_res(lir)+1,
LIR_op0(lir), (UINT)LIR_op1(lir));
} else {
fprintf(g_tfile, ", v%d <- (array_base_ptr)v%d, (array_elem)v%d",
LIR_res(lir), LIR_op0(lir), (UINT)LIR_op1(lir));
}
break;
case LOP_CMPL :
case LOP_CMP_LONG :
//AABBCC
IS_TRUE0(df);
switch (LIR_dt(lir)) {
case LIR_CMP_float:
fprintf(g_tfile, ", FLOAT");
fprintf(g_tfile, ", v%d, v%d, %d",
LIR_res(lir), LIR_op0(lir), (UINT)LIR_op1(lir));
break;
case LIR_CMP_double:
fprintf(g_tfile, ", DOUBLE");
fprintf(g_tfile, ", (v%d,v%d), (v%d,v%d), %d",
LIR_res(lir), LIR_res(lir)+1,
LIR_op0(lir), LIR_op0(lir)+1,
(UINT)LIR_op1(lir));
break;
default: IS_TRUE0(0);
}
break;
case LOP_ADD :
case LOP_SUB :
case LOP_MUL :
case LOP_DIV :
case LOP_REM :
case LOP_AND :
case LOP_OR :
case LOP_XOR :
case LOP_SHL :
case LOP_SHR :
case LOP_USHR :
{
fprintf(g_tfile, ", %s", get_dt_name(lir));
LIRABCOp * p = (LIRABCOp*)lir;
if (is_wide(lir)) {
fprintf(g_tfile, ", (v%d,v%d) <- (v%d,v%d), (v%d,v%d)",
LIR_res(lir), LIR_res(lir)+1,
LIR_op0(lir), LIR_op0(lir)+1,
(UINT)LIR_op1(lir), (UINT)LIR_op1(lir)+1);
} else {
fprintf(g_tfile, ", v%d <- v%d, v%d",
LIR_res(lir), LIR_op0(lir), (UINT)LIR_op1(lir));
}
}
break;
case LOP_IF :
//ABCCCC
switch (LIR_dt(lir)) {
case LIR_cond_EQ: fprintf(g_tfile, ", =="); break;
case LIR_cond_NE: fprintf(g_tfile, ", !="); break;
case LIR_cond_LT: fprintf(g_tfile, ", <"); break;
case LIR_cond_GE: fprintf(g_tfile, ", >="); break;
case LIR_cond_GT: fprintf(g_tfile, ", >"); break;
case LIR_cond_LE: fprintf(g_tfile, ", <="); break;
}
fprintf(g_tfile, ", v%d, v%d, (lirIdx)%dth",
LIR_res(lir), LIR_op0(lir), (UINT)LIR_op1(lir));
break;
case LOP_ADD_LIT : //AABBCC, AABBCCCC
case LOP_SUB_LIT : //AABBCC, AABBCCCC
case LOP_MUL_LIT : //AABBCC, AABBCCCC
case LOP_DIV_LIT : //AABBCC, AABBCCCC
case LOP_REM_LIT : //AABBCC, AABBCCCC
case LOP_AND_LIT : //AABBCC, AABBCCCC
case LOP_OR_LIT : //AABBCC, AABBCCCC
case LOP_XOR_LIT : //AABBCC, AABBCCCC
case LOP_SHL_LIT : //AABBCC
case LOP_SHR_LIT : //AABBCC
case LOP_USHR_LIT : //AABBCC
{
fprintf(g_tfile, ", %s", get_dt_name(lir));
LIRABCOp * p = (LIRABCOp*)lir;
if (is_wide(lir)) {
fprintf(g_tfile, ", (v%d,v%d) <- (v%d,v%d),",
LIR_res(lir), LIR_res(lir)+1,
LIR_op0(lir), LIR_op0(lir)+1);
} else {
fprintf(g_tfile, ", v%d <- v%d,",
LIR_res(lir), LIR_op0(lir));
}
if (is_s8((INT)LIR_op1(lir))) {
//8bit imm
fprintf(g_tfile, "(lit8)%d", (INT)LIR_op1(lir));
} else if (is_s16((INT)LIR_op1(lir))) {
//16bit imm
fprintf(g_tfile, "(lit16)%d", (INT)LIR_op1(lir));
} else {
IS_TRUE0(0);
}
}
break;
case LOP_IPUT :
fprintf(g_tfile, ", %s", get_dt_name(lir));
//ABCCCC
IS_TRUE0(df);
if (is_wide(lir)) {
fprintf(g_tfile, ", (v%d,v%d) -> (obj_ptr)v%d, (ofst<%d>)%s::%s",
LIR_res(lir), LIR_res(lir)+1,
LIR_op0(lir), (UINT)LIR_op1(lir),
get_field_class_name(df, (UINT)LIR_op1(lir)),
get_field_name(df, (UINT)LIR_op1(lir)));
} else {
fprintf(g_tfile, ", v%d -> (obj_ptr)v%d, (ofst<%d>)%s::%s",
LIR_res(lir),
LIR_op0(lir),
(UINT)LIR_op1(lir),
get_field_class_name(df, (UINT)LIR_op1(lir)),
get_field_name(df, (UINT)LIR_op1(lir)));
}
break;
case LOP_IGET :
fprintf(g_tfile, ", %s", get_dt_name(lir));
//ABCCCC
IS_TRUE0(df);
if (is_wide(lir)) {
fprintf(g_tfile, ", (v%d,v%d) <- (obj_ptr)v%d, (ofst<%d>)%s::%s",
LIR_res(lir), LIR_res(lir)+1,
LIR_op0(lir),
(UINT)LIR_op1(lir),
get_field_class_name(df, (UINT)LIR_op1(lir)),
get_field_name(df, (UINT)LIR_op1(lir)));
} else {
fprintf(g_tfile, ", v%d <- (obj_ptr)v%d, (ofst<%d>)%s::%s",
LIR_res(lir),
LIR_op0(lir),
(UINT)LIR_op1(lir),
get_field_class_name(df, (UINT)LIR_op1(lir)),
get_field_name(df, (UINT)LIR_op1(lir)));
}
break;
case LOP_INSTANCE_OF:
fprintf(g_tfile, ", (pred)v%d <- v%d, (clsname<%d>)'%s'",
LIR_res(lir),
LIR_op0(lir),
(UINT)LIR_op1(lir),
dexStringByTypeIdx(df, (UINT)LIR_op1(lir)));
break;
case LOP_NEW_ARRAY :
//ABCCCC
//new-array v%d(res) <- v%d(op0), LCAnimal(op1)
fprintf(g_tfile, ", %s", get_dt_name(lir));
//ABCCCC
IS_TRUE0(df);
fprintf(g_tfile, ", v%d <- (num_of_elem)v%d, (elem_type<%d>)'%s'",
LIR_res(lir),
LIR_op0(lir),
(UINT)LIR_op1(lir),
dexStringByTypeIdx(df, (UINT)LIR_op1(lir)));
break;
case LOP_TABLE_SWITCH:
{
LIRSwitchOp * p = (LIRSwitchOp*)lir;
IS_TRUE0(LIR_dt(p) == 0x1);
fprintf(g_tfile, ", v%d", p->value);
USHORT * pdata = p->data;
//data[0]: flag to indicate switch-table type:
// 0x1 TABLE_SWITCH, 0x2 LOOKUP_SWITCH
USHORT f = pdata[0];
IS_TRUE0(f == 0x100);
//data[1]: the number of CASE entry.
USHORT num_of_case = pdata[1];
//data[2..3]: the base value of case-table
UINT base_val = *((UINT*)(&pdata[2]));
fprintf(g_tfile, ", basev:%d", base_val);
//((BYTE*)data)[4..num_of_case*4]:
// the position of the index table is at current instruction.
if (num_of_case > 0) {
UINT * pcase_entry = (UINT*)&pdata[4];
fprintf(g_tfile, " tgtidx:");
for (USHORT i = 0; i < num_of_case; i++) {
UINT idx_of_insn = pcase_entry[i];
fprintf(g_tfile, "%d", idx_of_insn);
if (i != num_of_case - 1) {
fprintf(g_tfile, ",");
}
}
}
}
break;
case LOP_LOOKUP_SWITCH:
{
LIRSwitchOp * p = (LIRSwitchOp*)lir;
IS_TRUE0(LIR_dt(p) == 0x2);
fprintf(g_tfile, ", v%d", p->value);
USHORT * pdata = p->data;
//pdata[0]: flag to indicate switch-table type:
// 0x1 TABLE_SWITCH, 0x2 LOOKUP_SWITCH
UINT f = pdata[0];
IS_TRUE0(f == 0x200);
//pdata[1]: the number of CASE entry.
UINT num_of_case = pdata[1];
if (num_of_case > 0) {
BYTE * tp = (BYTE*)pdata;
//((BYTE*)pdata)[4..4+num_of_case*4-1]: the case-value buffer.
UINT * pcase_value = (UINT*)&tp[4];
//((BYTE*)pdata)[4+num_of_case*4, 4+num_of_case*8-1]:
// the position of the index table is at current instruction.
UINT * pcase_entry = (UINT*)&tp[4 + num_of_case * 4];
fprintf(g_tfile, " val2idx(");
for (UINT i = 0; i < num_of_case; i++) {
UINT idx_of_insn = pcase_entry[i];
fprintf(g_tfile, "%d:%d", pcase_value[i], idx_of_insn);
if (i != num_of_case - 1) {
fprintf(g_tfile, ",");
}
}
fprintf(g_tfile, ")");
}
}
break;
case LOP_FILL_ARRAY_DATA:
{
fprintf(g_tfile, ", %s", get_dt_name(lir));
//AABBBBBBBB
//pdata[0]: the magic number of code
//0x100 PACKED_SWITCH, 0x200 SPARSE_SWITCH, 0x300 FILL_ARRAY_DATA
LIRSwitchOp * r = (LIRSwitchOp*)lir;
UInt16 const* pdata = (UInt16 const*)r->data;
IS_TRUE0(pdata[0] == 0x300);
//pdata[1]: size of each element.
//pdata[2]: the number of element.
UINT size_of_elem = pdata[1];
UINT num_of_elem = pdata[2];
UINT data_size = num_of_elem * size_of_elem;
//fprintf(g_tfile, ", (elem_sz<%d>), (elem_num<%d>), (data_ptr)0x%x",
fprintf(g_tfile, ", (elem_sz<%d>), (elem_num<%d>)",
size_of_elem, num_of_elem);
}
break;
case LOP_INVOKE:
{
/*
ABCCCCDDDD the layout clarifies:
A(p4), B(argc), CCCC(method_id), DDDD(p0, p1, p2, p3)
where p0,p1,p2,p3,p4 are five parameters.
AABBBBCCCC the layout clarifies:
AA(argc), BBBB(method_id), CCCC(p0,p1,...p(argc-1))
*/
LIRInvokeOp * r = (LIRInvokeOp*)lir;
UINT flags = LIR_dt(lir);
UINT flag1 = flags & 0x0F;
UINT flag2 = flags & 0xF0;
IS_TRUE(flag1 != 0, ("means LIR is LOP_FILLED_NEW_ARRAY"));
DexMethodId const* method_id = dexGetMethodId(df, r->ref);
IS_TRUE0(method_id);
CHAR const* method_name = dexStringById(df, method_id->nameIdx);
CHAR const* class_name =
dexStringByTypeIdx(df, method_id->classIdx);
IS_TRUE0(method_name);
DexProtoId const* proto_id =
dexGetProtoId(df, method_id->protoIdx);
CHAR const* shorty_name = dexStringById(df, proto_id->shortyIdx);
fprintf(g_tfile, ", %s::%s", class_name, method_name);
UINT k = LIR_dt(lir);
bool is_range = HAVE_FLAG((k & 0xf0), LIR_Range);
if (is_range) {
switch (k & 0x0f) {
case LIR_invoke_unknown: IS_TRUE0(0); break;
case LIR_invoke_virtual:
fprintf(g_tfile, ", virtual-range"); break;
case LIR_invoke_direct:
fprintf(g_tfile, ", direct-range"); break;
case LIR_invoke_super:
fprintf(g_tfile, ", super-range"); break;
case LIR_invoke_interface:
fprintf(g_tfile, ", interface-range"); break;
case LIR_invoke_static:
fprintf(g_tfile, ", static-range"); break;
default: IS_TRUE0(0);
}
} else {
switch (k & 0x0f) {
case LIR_invoke_unknown: IS_TRUE0(0); break;
case LIR_invoke_virtual:
fprintf(g_tfile, ", virtual"); break;
case LIR_invoke_direct:
fprintf(g_tfile, ", direct"); break;
case LIR_invoke_super:
fprintf(g_tfile, ", super"); break;
case LIR_invoke_interface:
fprintf(g_tfile, ", interface"); break;
case LIR_invoke_static:
fprintf(g_tfile, ", static"); break;
default: IS_TRUE0(0);
}
}
if (r->argc != 0) {
fprintf(g_tfile, ", arg(");
for (USHORT i = 0; i < r->argc; i++) {
fprintf(g_tfile, "v%d", r->args[i]);
if (i != r->argc-1) {
fprintf(g_tfile, ",");
}
}
fprintf(g_tfile, ")");
}
}
break;
case LOP_FILLED_NEW_ARRAY:
{
/*
AABBBBCCCC or ABCCCCDEFG
e.g:
A(argc), B,D,E,F,G(parampters), CCCC(class_tyid)
*/
LIRInvokeOp * r = (LIRInvokeOp*)lir;
UINT flags = LIR_dt(lir);
CHAR const* class_name = dexStringByTypeIdx(df, r->ref);
IS_TRUE0(class_name);
fprintf(g_tfile, ", %s", class_name);
if (r->argc != 0) {
fprintf(g_tfile, ", arg(");
for (USHORT i = 0; i < r->argc; i++) {
fprintf(g_tfile, "v%d", r->args[i]);
if (i != r->argc-1) {
fprintf(g_tfile, ",");
}
}
fprintf(g_tfile, ")");
}
}
break;
case LOP_CMPG:
//AABBCC
IS_TRUE0(df);
switch (LIR_dt(lir)) {
case LIR_CMP_float:
fprintf(g_tfile, ", FLOAT");
fprintf(g_tfile, ", v%d, v%d, %d",
LIR_res(lir),
LIR_op0(lir),
(INT)LIR_op1(lir));
break;
case LIR_CMP_double:
fprintf(g_tfile, ", DOUBLE");
fprintf(g_tfile, ", (v%d,v%d), v%d, %d",
LIR_res(lir), LIR_res(lir)+1,
LIR_op0(lir),
(INT)LIR_op1(lir));
break;
default: IS_TRUE0(0);
}
break;
case LOP_PHI:
IS_TRUE0(0);
break;
default: IS_TRUE0(0);
} //end switch
fflush(g_tfile);
}
CHAR const* get_func_name(DexFile * df, DexMethod const* dm)
{
IS_TRUE0(df && dm);
DexMethodId const* pMethodId = dexGetMethodId(df, dm->methodIdx);
return dexStringById(df, pMethodId->nameIdx);
}
CHAR const* get_class_name(DexFile * df, DexMethod const* dm)
{
IS_TRUE0(df && dm);
DexMethodId const* pMethodId = dexGetMethodId(df, dm->methodIdx);
return dexStringByTypeIdx(df, pMethodId->classIdx);
}
/*
* Resolve an interface method reference.
*
* Returns NULL with an exception raised on failure.
*/
Method* dvmResolveInterfaceMethod(const ClassObject* referrer, u4 methodIdx)
{
DvmDex* pDvmDex = referrer->pDvmDex;
ClassObject* resClass;
const DexMethodId* pMethodId;
Method* resMethod;
int i;
LOGVV("--- resolving interface method %d (referrer=%s)\n",
methodIdx, referrer->descriptor);
pMethodId = dexGetMethodId(pDvmDex->pDexFile, methodIdx);
resClass = dvmResolveClass(referrer, pMethodId->classIdx, false);
if (resClass == NULL) {
/* can't find the class that the method is a part of */
assert(dvmCheckException(dvmThreadSelf()));
return NULL;
}
if (!dvmIsInterfaceClass(resClass)) {
/* whoops */
dvmThrowExceptionWithClassMessage(
"Ljava/lang/IncompatibleClassChangeError;",
resClass->descriptor);
return NULL;
}
/*
* This is the first time the method has been resolved. Set it in our
* resolved-method structure. It always resolves to the same thing,
* so looking it up and storing it doesn't create a race condition.
*
* If we scan into the interface's superclass -- which is always
* java/lang/Object -- we will catch things like:
* interface I ...
* I myobj = (something that implements I)
* myobj.hashCode()
* However, the Method->methodIndex will be an offset into clazz->vtable,
* rather than an offset into clazz->iftable. The invoke-interface
* code can test to see if the method returned is abstract or concrete,
* and use methodIndex accordingly. I'm not doing this yet because
* (a) we waste time in an unusual case, and (b) we're probably going
* to fix it in the DEX optimizer.
*
* We do need to scan the superinterfaces, in case we're invoking a
* superinterface method on an interface reference. The class in the
* DexTypeId is for the static type of the object, not the class in
* which the method is first defined. We have the full, flattened
* list in "iftable".
*/
const char* methodName =
dexStringById(pDvmDex->pDexFile, pMethodId->nameIdx);
DexProto proto;
dexProtoSetFromMethodId(&proto, pDvmDex->pDexFile, pMethodId);
LOGVV("+++ looking for '%s' '%s' in resClass='%s'\n",
methodName, methodSig, resClass->descriptor);
resMethod = dvmFindVirtualMethod(resClass, methodName, &proto);
if (resMethod == NULL) {
LOGVV("+++ did not resolve immediately\n");
for (i = 0; i < resClass->iftableCount; i++) {
resMethod = dvmFindVirtualMethod(resClass->iftable[i].clazz,
methodName, &proto);
if (resMethod != NULL)
break;
}
if (resMethod == NULL) {
dvmThrowException("Ljava/lang/NoSuchMethodError;", methodName);
return NULL;
}
} else {
LOGVV("+++ resolved immediately: %s (%s %d)\n", resMethod->name,
resMethod->clazz->descriptor, (u4) resMethod->methodIndex);
}
LOGVV("--- found interface method %d (%s.%s)\n",
methodIdx, resClass->descriptor, resMethod->name);
/* we're expecting this to be abstract */
assert(dvmIsAbstractMethod(resMethod));
/* interface methods are always public; no need to check access */
/*
* The interface class *may* be initialized. According to VM spec
* v2 2.17.4, the interfaces a class refers to "need not" be initialized
* when the class is initialized.
*
* It isn't necessary for an interface class to be initialized before
* we resolve methods on that interface.
*
* We choose not to do the initialization now.
*/
//assert(dvmIsClassInitialized(resMethod->clazz));
/*
* The class is initialized, the method has been found. Add a pointer
* to our data structure so we don't have to jump through the hoops again.
*/
dvmDexSetResolvedMethod(pDvmDex, methodIdx, resMethod);
return resMethod;
}
/*
* Find the method corresponding to "methodRef".
*
* We use "referrer" to find the DexFile with the constant pool that
* "methodRef" is an index into. We also use its class loader. The method
* being resolved may very well be in a different DEX file.
*
* If this is a static method, we ensure that the method's class is
* initialized.
*/
Method* dvmResolveMethod(const ClassObject* referrer, u4 methodIdx,
MethodType methodType)
{
DvmDex* pDvmDex = referrer->pDvmDex;
ClassObject* resClass;
const DexMethodId* pMethodId;
Method* resMethod;
assert(methodType != METHOD_INTERFACE);
LOGVV("--- resolving method %u (referrer=%s)\n", methodIdx,
referrer->descriptor);
pMethodId = dexGetMethodId(pDvmDex->pDexFile, methodIdx);
resClass = dvmResolveClass(referrer, pMethodId->classIdx, false);
if (resClass == NULL) {
/* can't find the class that the method is a part of */
assert(dvmCheckException(dvmThreadSelf()));
return NULL;
}
if (dvmIsInterfaceClass(resClass)) {
/* method is part of an interface */
dvmThrowExceptionWithClassMessage(
"Ljava/lang/IncompatibleClassChangeError;",
resClass->descriptor);
return NULL;
}
const char* name = dexStringById(pDvmDex->pDexFile, pMethodId->nameIdx);
DexProto proto;
dexProtoSetFromMethodId(&proto, pDvmDex->pDexFile, pMethodId);
/*
* We need to chase up the class hierarchy to find methods defined
* in super-classes. (We only want to check the current class
* if we're looking for a constructor; since DIRECT calls are only
* for constructors and private methods, we don't want to walk up.)
*/
if (methodType == METHOD_DIRECT) {
resMethod = dvmFindDirectMethod(resClass, name, &proto);
} else if (methodType == METHOD_STATIC) {
resMethod = dvmFindDirectMethodHier(resClass, name, &proto);
} else {
resMethod = dvmFindVirtualMethodHier(resClass, name, &proto);
}
if (resMethod == NULL) {
dvmThrowException("Ljava/lang/NoSuchMethodError;", name);
return NULL;
}
LOGVV("--- found method %d (%s.%s)\n",
methodIdx, resClass->descriptor, resMethod->name);
/* see if this is a pure-abstract method */
if (dvmIsAbstractMethod(resMethod) && !dvmIsAbstractClass(resClass)) {
dvmThrowException("Ljava/lang/AbstractMethodError;", name);
return NULL;
}
/*
* If we're the first to resolve this class, we need to initialize
* it now. Only necessary for METHOD_STATIC.
*/
if (methodType == METHOD_STATIC) {
if (!dvmIsClassInitialized(resMethod->clazz) &&
!dvmInitClass(resMethod->clazz))
{
assert(dvmCheckException(dvmThreadSelf()));
return NULL;
} else {
assert(!dvmCheckException(dvmThreadSelf()));
}
} else {
/*
* Edge case: if the <clinit> for a class creates an instance
* of itself, we will call <init> on a class that is still being
* initialized by us.
*/
assert(dvmIsClassInitialized(resMethod->clazz) ||
dvmIsClassInitializing(resMethod->clazz));
}
/*
* The class is initialized, the method has been found. Add a pointer
* to our data structure so we don't have to jump through the hoops again.
*/
dvmDexSetResolvedMethod(pDvmDex, methodIdx, resMethod);
return resMethod;
}
/*
* Alternate version of dvmResolveMethod().
*
* Doesn't throw exceptions, and checks access on every lookup.
*
* On failure, returns NULL, and sets *pFailure if pFailure is not NULL.
*/
Method* dvmOptResolveMethod(ClassObject* referrer, u4 methodIdx,
MethodType methodType, VerifyError* pFailure)
{
DvmDex* pDvmDex = referrer->pDvmDex;
Method* resMethod;
assert(methodType == METHOD_DIRECT ||
methodType == METHOD_VIRTUAL ||
methodType == METHOD_STATIC);
LOGVV("--- resolving method %u (referrer=%s)", methodIdx,
referrer->descriptor);
resMethod = dvmDexGetResolvedMethod(pDvmDex, methodIdx);
if (resMethod == NULL) {
const DexMethodId* pMethodId;
ClassObject* resClass;
pMethodId = dexGetMethodId(pDvmDex->pDexFile, methodIdx);
resClass = dvmOptResolveClass(referrer, pMethodId->classIdx, pFailure);
if (resClass == NULL) {
/*
* Can't find the class that the method is a part of, or don't
* have permission to access the class.
*/
ALOGV("DexOpt: can't find called method's class (?.%s)",
dexStringById(pDvmDex->pDexFile, pMethodId->nameIdx));
if (pFailure != NULL) { assert(!VERIFY_OK(*pFailure)); }
return NULL;
}
if (dvmIsInterfaceClass(resClass)) {
/* method is part of an interface; this is wrong method for that */
ALOGW("DexOpt: method is in an interface");
if (pFailure != NULL)
*pFailure = VERIFY_ERROR_GENERIC;
return NULL;
}
/*
* We need to chase up the class hierarchy to find methods defined
* in super-classes. (We only want to check the current class
* if we're looking for a constructor.)
*/
DexProto proto;
dexProtoSetFromMethodId(&proto, pDvmDex->pDexFile, pMethodId);
if (methodType == METHOD_DIRECT) {
resMethod = dvmFindDirectMethod(resClass,
dexStringById(pDvmDex->pDexFile, pMethodId->nameIdx), &proto);
} else {
/* METHOD_STATIC or METHOD_VIRTUAL */
resMethod = dvmFindMethodHier(resClass,
dexStringById(pDvmDex->pDexFile, pMethodId->nameIdx), &proto);
}
if (resMethod == NULL) {
ALOGV("DexOpt: couldn't find method '%s'",
dexStringById(pDvmDex->pDexFile, pMethodId->nameIdx));
if (pFailure != NULL)
*pFailure = VERIFY_ERROR_NO_METHOD;
return NULL;
}
if (methodType == METHOD_STATIC) {
if (!dvmIsStaticMethod(resMethod)) {
ALOGD("DexOpt: wanted static, got instance for method %s.%s",
resClass->descriptor, resMethod->name);
if (pFailure != NULL)
*pFailure = VERIFY_ERROR_CLASS_CHANGE;
return NULL;
}
} else if (methodType == METHOD_VIRTUAL) {
if (dvmIsStaticMethod(resMethod)) {
ALOGD("DexOpt: wanted instance, got static for method %s.%s",
resClass->descriptor, resMethod->name);
if (pFailure != NULL)
*pFailure = VERIFY_ERROR_CLASS_CHANGE;
return NULL;
}
}
/* see if this is a pure-abstract method */
if (dvmIsAbstractMethod(resMethod) && !dvmIsAbstractClass(resClass)) {
ALOGW("DexOpt: pure-abstract method '%s' in %s",
dexStringById(pDvmDex->pDexFile, pMethodId->nameIdx),
resClass->descriptor);
if (pFailure != NULL)
*pFailure = VERIFY_ERROR_GENERIC;
return NULL;
}
/*
* Add it to the resolved table so we're faster on the next lookup.
*
* We can only do this for static methods if we're not in "dexopt",
* because the presence of a valid value in the resolution table
* implies that the class containing the static field has been
* initialized.
*/
if (methodType != METHOD_STATIC || gDvm.optimizing)
dvmDexSetResolvedMethod(pDvmDex, methodIdx, resMethod);
}
LOGVV("--- found method %d (%s.%s)",
methodIdx, resMethod->clazz->descriptor, resMethod->name);
/* access allowed? */
tweakLoader(referrer, resMethod->clazz);
bool allowed = dvmCheckMethodAccess(referrer, resMethod);
untweakLoader(referrer, resMethod->clazz);
if (!allowed) {
IF_ALOGI() {
char* desc = dexProtoCopyMethodDescriptor(&resMethod->prototype);
ALOGI("DexOpt: illegal method access (call %s.%s %s from %s)",
resMethod->clazz->descriptor, resMethod->name, desc,
referrer->descriptor);
free(desc);
}
