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"""
Test Process::FindInMemory.
"""
import lldb
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
from address_ranges_helper import *
class FindInMemoryTestCase(TestBase):
NO_DEBUG_INFO_TESTCASE = True
def setUp(self):
TestBase.setUp(self)
self.build()
(
self.target,
self.process,
self.thread,
self.bp,
) = lldbutil.run_to_source_breakpoint(
self,
"break here",
lldb.SBFileSpec("main.cpp"),
)
self.assertTrue(self.bp.IsValid())
def test_check_stack_pointer(self):
"""Make sure the 'stack_pointer' variable lives on the stack"""
self.assertTrue(self.process, PROCESS_IS_VALID)
self.assertState(self.process.GetState(), lldb.eStateStopped, PROCESS_STOPPED)
frame = self.thread.GetSelectedFrame()
ex = frame.EvaluateExpression("&stack_pointer")
variable_region = lldb.SBMemoryRegionInfo()
self.assertTrue(
self.process.GetMemoryRegionInfo(
ex.GetValueAsUnsigned(), variable_region
).Success(),
)
stack_region = lldb.SBMemoryRegionInfo()
self.assertTrue(
self.process.GetMemoryRegionInfo(frame.GetSP(), stack_region).Success(),
)
self.assertEqual(variable_region, stack_region)
def test_find_in_memory_ok(self):
"""Make sure a match exists in the heap memory and the right address ranges are provided"""
self.assertTrue(self.process, PROCESS_IS_VALID)
self.assertState(self.process.GetState(), lldb.eStateStopped, PROCESS_STOPPED)
error = lldb.SBError()
addr = self.process.FindInMemory(
SINGLE_INSTANCE_PATTERN_STACK,
GetStackRange(self, True),
1,
error,
)
self.assertSuccess(error)
self.assertNotEqual(addr, lldb.LLDB_INVALID_ADDRESS)
def test_find_in_memory_double_instance_ok(self):
"""Make sure a match exists in the heap memory and the right address ranges are provided"""
self.assertTrue(self.process, PROCESS_IS_VALID)
self.assertState(self.process.GetState(), lldb.eStateStopped, PROCESS_STOPPED)
error = lldb.SBError()
addr = self.process.FindInMemory(
DOUBLE_INSTANCE_PATTERN_HEAP,
GetHeapRanges(self, True)[0],
1,
error,
)
self.assertSuccess(error)
self.assertNotEqual(addr, lldb.LLDB_INVALID_ADDRESS)
def test_find_in_memory_invalid_alignment(self):
"""Make sure the alignment 0 is failing"""
self.assertTrue(self.process, PROCESS_IS_VALID)
self.assertState(self.process.GetState(), lldb.eStateStopped, PROCESS_STOPPED)
error = lldb.SBError()
addr = self.process.FindInMemory(
SINGLE_INSTANCE_PATTERN_STACK,
GetStackRange(self, True),
0,
error,
)
self.assertFailure(error)
self.assertEqual(addr, lldb.LLDB_INVALID_ADDRESS)
def test_find_in_memory_invalid_address_range(self):
"""Make sure invalid address range is failing"""
self.assertTrue(self.process, PROCESS_IS_VALID)
self.assertState(self.process.GetState(), lldb.eStateStopped, PROCESS_STOPPED)
error = lldb.SBError()
addr = self.process.FindInMemory(
SINGLE_INSTANCE_PATTERN_STACK,
lldb.SBAddressRange(),
1,
error,
)
self.assertFailure(error)
self.assertEqual(addr, lldb.LLDB_INVALID_ADDRESS)
def test_find_in_memory_invalid_buffer(self):
"""Make sure the empty buffer is failing"""
self.assertTrue(self.process, PROCESS_IS_VALID)
self.assertState(self.process.GetState(), lldb.eStateStopped, PROCESS_STOPPED)
error = lldb.SBError()
addr = self.process.FindInMemory(
"",
GetStackRange(self, True),
1,
error,
)
self.assertFailure(error)
self.assertEqual(addr, lldb.LLDB_INVALID_ADDRESS)
def test_find_in_memory_unaligned(self):
"""Make sure the unaligned match exists in the heap memory and is not found with alignment 8"""
self.assertTrue(self.process, PROCESS_IS_VALID)
self.assertState(self.process.GetState(), lldb.eStateStopped, PROCESS_STOPPED)
error = lldb.SBError()
range = GetAlignedRange(self, True)
# First we make sure the pattern is found with alignment 1
addr = self.process.FindInMemory(
UNALIGNED_INSTANCE_PATTERN_HEAP,
range,
1,
error,
)
self.assertSuccess(error)
self.assertNotEqual(addr, lldb.LLDB_INVALID_ADDRESS)
# With alignment 8 the pattern should not be found
addr = self.process.FindInMemory(
UNALIGNED_INSTANCE_PATTERN_HEAP,
range,
8,
error,
)
self.assertSuccess(error)
self.assertEqual(addr, lldb.LLDB_INVALID_ADDRESS)
def test_memory_info_list_iterable(self):
"""Make sure the SBMemoryRegionInfoList is iterable and each yielded object is unique"""
self.assertTrue(self.process, PROCESS_IS_VALID)
self.assertState(self.process.GetState(), lldb.eStateStopped, PROCESS_STOPPED)
info_list = self.process.GetMemoryRegions()
self.assertTrue(info_list.GetSize() > 0)
collected_info = []
try:
for info in info_list:
collected_info.append(info)
except Exception:
self.fail("SBMemoryRegionInfoList is not iterable")
for i in range(len(collected_info)):
region = lldb.SBMemoryRegionInfo()
info_list.GetMemoryRegionAtIndex(i, region)
self.assertEqual(
collected_info[i],
region,
f"items {i}: iterator data should match index access data",
)
self.assertTrue(
len(collected_info) >= 2, "Test requires at least 2 memory regions"
)
self.assertNotEqual(
collected_info[0].GetRegionBase(),
collected_info[1].GetRegionBase(),
"Different items should have different base addresses",
)
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