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import lldb
from lldbsuite.test.lldbtest import *
from lldbsuite.test.decorators import *
from lldbsuite.test.gdbclientutils import *
from lldbsuite.test.lldbgdbclient import GDBRemoteTestBase
class TestMemoryRegionDirtyPages(GDBRemoteTestBase):
@skipIfXmlSupportMissing
def test(self):
class MyResponder(MockGDBServerResponder):
def qHostInfo(self):
return "ptrsize:8;endian:little;vm-page-size:4096;"
def qMemoryRegionInfo(self, addr):
if addr == 0:
return "start:0;size:100000000;"
if addr == 0x100000000:
return "start:100000000;size:4000;permissions:rx;dirty-pages:;"
if addr == 0x100004000:
return (
"start:100004000;size:4000;permissions:r;dirty-pages:100004000;"
)
if addr == 0x1000A2000:
return "start:1000a2000;size:5000;permissions:r;dirty-pages:1000a2000,1000a3000,1000a4000,1000a5000,1000a6000;"
self.server.responder = MyResponder()
target = self.dbg.CreateTarget("")
if self.TraceOn():
self.runCmd("log enable gdb-remote packets")
self.addTearDownHook(lambda: self.runCmd("log disable gdb-remote packets"))
process = self.connect(target)
# A memory region where we don't know anything about dirty pages
region = lldb.SBMemoryRegionInfo()
err = process.GetMemoryRegionInfo(0, region)
self.assertSuccess(err)
self.assertFalse(region.HasDirtyMemoryPageList())
self.assertEqual(region.GetNumDirtyPages(), 0)
region.Clear()
# A memory region with dirty page information -- and zero dirty pages
err = process.GetMemoryRegionInfo(0x100000000, region)
self.assertSuccess(err)
self.assertTrue(region.HasDirtyMemoryPageList())
self.assertEqual(region.GetNumDirtyPages(), 0)
self.assertEqual(region.GetPageSize(), 4096)
region.Clear()
# A memory region with one dirty page
err = process.GetMemoryRegionInfo(0x100004000, region)
self.assertSuccess(err)
self.assertTrue(region.HasDirtyMemoryPageList())
self.assertEqual(region.GetNumDirtyPages(), 1)
self.assertEqual(region.GetDirtyPageAddressAtIndex(0), 0x100004000)
region.Clear()
# A memory region with multple dirty pages
err = process.GetMemoryRegionInfo(0x1000A2000, region)
self.assertSuccess(err)
self.assertTrue(region.HasDirtyMemoryPageList())
self.assertEqual(region.GetNumDirtyPages(), 5)
self.assertEqual(region.GetDirtyPageAddressAtIndex(4), 0x1000A6000)
region.Clear()
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