def getIrefTable(vmPath, offset):
g = art.getFhandle(vmPath)
g.seek(offset) #beginning of the global table
fsize = os.fstat(g.fileno()).st_size
off = g.tell()
if off >= fsize:
offset = off - fsize
vmPath = getNFPath(vmPath)
g = art.getFhandle(vmPath)
g.seek(offset)
segment_state = unpack_dec(g.read(4))[0]
table_mem_map = hex(unpack_int(g.read(4))[0])
#print "TableMap "+table_mem_map
table_begin = hex(unpack_int(g.read(4))[0])
#print "Irtentry "+table_begin
ref_kind = unpack_dec(g.read(4))[0]
#print "ref_kind "+ str(ref_kind)
max_entries = unpack_dec(g.read(4))[0]
#print "max entries "+ str(max_entries)
num_holes = unpack_dec(g.read(4))[0]
#print "num_holes "+ str(num_holes)
last_known_state = unpack_dec(g.read(4))[0]
#print "last_known_state "+ str(last_known_state)
resizable = hex(unpack_int(g.read(4))[0])
#print "resizable "+ resizable
return [segment_state, table_begin]
def getJVMPointer(nPath, rAddr):
k = art.getFhandle(nPath)
index = art.getIndex('Runtime', 'java_vm_')
k.seek(rAddr + index)
ret = hex(unpack_int(k.read(4))[0])
k.close()
return ret
def getObjects(self, addrStart, objCount, jvm, lstList, mapList,
bitmap_size_, heapBegin_):
#heapBegin_ = int(heapBegin_, 16)
[start, end] = art.getSE(lstList)
objCount = int(objCount)
[aPath, offset] = art.getOffset(addrStart, mapList)
addr = art.getFhandle(aPath)
addr.seek(offset)
#obj = int(addrStart, 16)
while (objCount > 0):
oClass = hex(unpack_int(addr.read(4))[0])
if (art.validateAddr(
int(oClass, 16), start,
end)): # validating class pointer needs to edit
#if (self.hasAddress(obj+offset, bitmap_size_, heapBegin_)): Validating object pointer to ensure its within heap boundary
off = addr.tell() - 4
address = hex(start + off)
objSize = jvm.dumpRefs(oClass, addr, address, off)
if (objSize % 8 != 0):
objSize = 8 * (int(objSize / 8) + (objSize % 8 > 0))
if (objSize == 0):
objSize = 8
offset += objSize
addr.seek(offset)
objCount = objCount - 1
else:
objSize = 8
offset += objSize
addr.seek(offset)
addr.close()
def printRefs(refs, lstList, mapList):
[start, end] = art.getSE(lstList)
if refs:
for ref in refs:
[aPath, offset] = art.getOffset(ref, mapList)
addr = art.getFhandle(aPath)
dumpRefs(ref, addr, ref, offset)
def getLibsOffset(vmPath, offset):
index = art.getIndex('JavaVMExt', 'libraries_')
g = art.getFhandle(vmPath)
g.seek(offset+index)
libraries_ = hex(unpack_int(g.read(4))[0])
g.close()
return libraries_
def getPointer(addr, off): [tpath, offset] = art.getOffset(addr, memList) g = art.getFhandle(tpath) g.seek(offset+off) newAddr = hex(unpack_int(g.read(4))[0]) g.close() return newAddr
def getTLPointer(self, nPath, rAddr):
k = art.getFhandle(nPath)
index = types.art_types.get('Runtime')[1].get('thread_list_')[0]
k.seek(rAddr + index)
TLPointer = hex(unpack_int(k.read(4))[0])
k.close()
return TLPointer
def getObject(self, addrStart, jvm2, lstList, mapList):
[start, end] = art.getSE(lstList)
[aPath, offset] = art.getOffset(addrStart, mapList)
addr = art.getFhandle(aPath)
addr.seek(offset)
oClass = hex(struct.unpack("<I", addr.read(4))[0])
if (art.validateAddr(int(oClass, 16), start, end)):
off = addr.tell() - 4
objSize = jvm2.dumpRefs(oClass, addr, off, start)
def printRefs(refs, lstList, mapList):
[start, end] = art.getSE(lstList)
if refs:
for ref in refs:
[klass, monitor, refFile, refOff] = cls.getOKlass(ref, mapList)
name = cls.resolveName(klass, mapList)
if not name in notList:
#print ref
[aPath, offset] = art.getOffset(ref, mapList)
addr = art.getFhandle(aPath)
dumpRefs(ref, addr, ref, offset)
def getObject(self, addrStart, jvm2, lstList, mapList, bitmap_size_,
heapBegin_):
ret = []
[start, end] = art.getSE(lstList)
[aPath, offset] = art.getOffset(addrStart, mapList)
addr = art.getFhandle(aPath)
addr.seek(offset)
oClass = hex(unpack_int(addr.read(4))[0])
if (art.validateAddr(int(oClass, 16), start, end)):
off = addr.tell() - 4
objSize, ret = jvm2.dumpRefs(oClass, addr, off)
addr.close()
return ret
def getSuperClass(super_class_,fDict, ret):
superC = True
while superC:
[sPath, sOffset] = art.getOffset(super_class_, mapList)
sAddr = art.getFhandle(sPath)
[name, classFlag, primType, ifields_,methods_, sfields_, dexCache, objSize, refSize, super_class_] = cls.getClassMembers(super_class_, sAddr, sOffset, mapList)
sAddr.close()
if (name =="java.lang.Object" or super_class_ == None):
superC = False
elif ifields_!="0x0":
ret.append("Super Class Offset " + name)
fields = fld.getFields(ifields_, mapList)
for key, values in fields.items():
fieldIdx = values[2]
cl,type ,name = dx.getMeta(dexCache,fieldIdx,mapList, memList)
fDict[values[3]] = [name,type]
def regionHdr(self, regionAddr, num_regions_, memList):
[regPath, offset] = art.getOffset(regionAddr, memList)
g = art.getFhandle(regPath)
g.seek(offset)
count = 0
TLAB = []
NonTLAB = []
while (count < num_regions_):
regBegin = g.tell()
g.seek(regBegin + 16)
state_ = struct.unpack("<B", g.read(1))[0]
if (state_ > 0):
g.seek(regBegin + 33)
is_a_tlab_ = struct.unpack("<?", g.read(1))[0]
if (is_a_tlab_ == True):
g.seek(regBegin)
idx = struct.unpack("<i", g.read(4))[0]
begin_ = hex(struct.unpack("<I", g.read(4))[0])
top_ = hex(struct.unpack("<I", g.read(4))[0])
end_ = hex(struct.unpack("<I", g.read(4))[0])
#g.seek(regBegin+28)
#liveBytes = struct.unpack("<i", g.read(4))[0]
#print "Tlab "+str(liveBytes)
g.seek(regBegin + 36)
thread = hex(struct.unpack("<I", g.read(4))[0])
TLAB.append(
str(idx) + "\t" + begin_ + "\t" + top_ + "\t" + end_ +
"\t" + thread)
else:
g.seek(regBegin)
idx = struct.unpack("<i", g.read(4))[0]
begin_ = hex(struct.unpack("<I", g.read(4))[0])
top_ = hex(struct.unpack("<I", g.read(4))[0])
end_ = hex(struct.unpack("<I", g.read(4))[0])
g.seek(regBegin + 20)
objAlloc = struct.unpack("<i", g.read(4))[0]
#g.seek(regBegin+28)
#liveBytes = struct.unpack("<i", g.read(4))[0]
#print "NonTlab "+str(liveBytes)
NonTLAB.append(
str(idx) + "\t" + begin_ + "\t" + top_ + "\t" + end_ +
"\t" + str(objAlloc))
g.seek(regBegin + 40)
else:
g.seek(regBegin + 40)
count = count + 1
return [TLAB, NonTLAB]
def getBitmap(self, regionSPath, offset, memList):
mark_bitmap = self.readPointer(
regionSPath, offset,
164) #GetLiveBitmap for region space returns mark_bitmap
#print "live_bitmap " + mark_bitmap #GetLiveBitmap for region space returns mark_bitmap
[bitmapPath, offset] = art.getOffset(mark_bitmap, memList)
g = art.getFhandle(bitmapPath)
g.seek(offset)
memmap = hex(unpack_int(g.read(4))[0])
begin_ = hex(unpack_int(g.read(4))[0])
bitmap_size_ = unpack_dec(g.read(4))[0]
#print "Bitmap size = "+ str(bitmap_size_)
heapBegin_ = hex(unpack_int(g.read(4))[0])
name_ = art.getNames(hex(int(mark_bitmap, 16) + 16), memList)
#print memmap, begin_, bitmap_size_, heapBegin_, name_
g.close()
return [bitmap_size_, heapBegin_]
def getObjects(self, addrStart, objCount, jvm, lstList, mapList):
[start, end] = art.getSE(lstList)
objCount = int(objCount)
[aPath, offset] = art.getOffset(addrStart, mapList)
addr = art.getFhandle(aPath)
addr.seek(offset)
while (objCount > 0):
oClass = hex(struct.unpack("<I", addr.read(4))[0])
if (art.validateAddr(int(oClass, 16), start, end)):
off = addr.tell() - 4
objSize = jvm.dumpRefs(oClass, addr, off, start)
if (objSize % 8 != 0):
objSize = 8 * (int(objSize / 8) + (objSize % 8 > 0))
if (objSize == 0):
objSize = 8
offset += objSize
addr.seek(offset)
objCount = objCount - 1
else:
objSize = 8
offset += objSize
addr.seek(offset)
def readInt(self, nPath, rAddr, index):
k = art.getFhandle(nPath)
k.seek(rAddr + index)
addr = struct.unpack("<i", k.read(4))[0]
return addr
def readPointer(self, nPath, rAddr, index):
k = art.getFhandle(nPath)
k.seek(rAddr + index)
addr = hex(struct.unpack("<I", k.read(4))[0])
return addr
def getPointer(addr, off):
[tpath, offset] = art.getOffset(addr, memList)
g = art.getFhandle(tpath)
g.seek(offset + off)
newAddr = hex(struct.unpack("<I", g.read(4))[0])
return newAddr
def getJVMPointer(nPath, rAddr):
k = art.getFhandle(nPath)
index = art.getIndex('Runtime', 'java_vm_')
k.seek(rAddr + index)
return hex(struct.unpack("<I", k.read(4))[0])
def readInt(self, nPath, rAddr, index):
k = art.getFhandle(nPath)
k.seek(rAddr + index)
addr = unpack_dec(k.read(4))[0]
k.close()
return addr
def readPointer(self, nPath, rAddr, index):
k = art.getFhandle(nPath)
k.seek(rAddr + index)
addr = hex(unpack_int(k.read(4))[0])
k.close()
return addr
def readBool(self, nPath, rAddr, index):
k = art.getFhandle(nPath)
k.seek(rAddr + index)
addr = struct.unpack("<?", k.read(1))[0]
k.close()
return addr
def regionHdr(self, regionAddr, num_regions_, memList):
[regPath, offset] = art.getOffset(regionAddr, memList)
g = art.getFhandle(regPath)
g.seek(offset)
count = 0
TLAB = []
NonTLAB = []
oCount = 0
while (count < num_regions_):
regBegin = g.tell()
g.seek(regBegin + 16)
state_ = struct.unpack("<B", g.read(1))[0]
#g.seek(regBegin+17)
#type = struct.unpack("<B", g.read(1))[0]
#print "Region Type "+str(type)
if (
state_ > 0
): # non-free region state_=1 means kRegionStateAllocated, our none-free regions are type = 3 (kRegionTypeToSpace), 4 (kRegionTypeNone)
g.seek(regBegin + 33)
is_a_tlab_ = struct.unpack("<?", g.read(1))[0]
if (is_a_tlab_ == True):
g.seek(regBegin)
idx = unpack_dec(g.read(4))[0]
begin_ = hex(unpack_int(g.read(4))[0])
top_ = hex(unpack_int(g.read(4))[0])
end_ = hex(unpack_int(g.read(4))[0])
#for debug to be removed #Android 8 /art/runtime/gc/space/region_space-inl.h line 249
g.seek(regBegin + 28)
liveBytes = unpack_dec(g.read(4))[0]
diff = int(top_, 16) - int(begin_, 16)
need_bitmap = liveBytes != -1 and liveBytes != diff
#print "Tlab "+str(need_bitmap)
#end debug
g.seek(regBegin + 36)
thread = hex(unpack_int(g.read(4))[0])
TLAB.append(
str(idx) + "\t" + begin_ + "\t" + top_ + "\t" + end_ +
"\t" + str(need_bitmap) + "(" + str(liveBytes) + " " +
str(diff) + ")" + "\t\t\t" + thread)
else:
g.seek(regBegin)
idx = unpack_dec(g.read(4))[0]
begin_ = hex(unpack_int(g.read(4))[0])
top_ = hex(unpack_int(g.read(4))[0])
end_ = hex(unpack_int(g.read(4))[0])
g.seek(regBegin + 20)
objAlloc = unpack_dec(g.read(4))[0]
oCount = oCount + objAlloc
#for debug to be removed
g.seek(regBegin + 28)
liveBytes = unpack_dec(g.read(4))[0]
diff = int(top_, 16) - int(begin_, 16)
need_bitmap = liveBytes != -1 and liveBytes != diff
#print "NonTlab "+str(need_bitmap)
#end debug
NonTLAB.append(
str(idx) + "\t" + begin_ + "\t" + top_ + "\t" + end_ +
"\t" + str(objAlloc) + "\t" + str(need_bitmap) + "(" +
str(liveBytes) + " " + str(diff) + ")")
g.seek(regBegin + 40)
else:
g.seek(regBegin + 40)
count = count + 1
g.close()
print "NonTlab Total " + str(oCount)
return [TLAB, NonTLAB]
def getLibsOffset(vmPath, offset):
index = art.getIndex('JavaVMExt', 'libraries_')
g = art.getFhandle(vmPath)
g.seek(offset + index)
libraries_ = hex(struct.unpack("<I", g.read(4))[0])
return libraries_
