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"""Test printing ObjC objects that use unbacked properties - so that the static ivar offsets are incorrect."""
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class TestObjCIvarStripped(TestBase):
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# Find the line numbers to break inside main().
self.main_source = "main.m"
self.stop_line = line_number(self.main_source, "// Set breakpoint here.")
@skipIf(
debug_info=no_match("dsym"),
bugnumber="This test requires a stripped binary and a dSYM",
)
@add_test_categories(["pyapi"])
def test_with_python_api(self):
"""Test that we can find stripped Objective-C ivars in the runtime"""
self.build()
exe = self.getBuildArtifact("a.out.stripped")
target = self.dbg.CreateTarget(exe)
self.assertTrue(target, VALID_TARGET)
self.dbg.HandleCommand("add-dsym " + self.getBuildArtifact("a.out.dSYM"))
breakpoint = target.BreakpointCreateByLocation(self.main_source, self.stop_line)
self.assertTrue(
breakpoint.IsValid() and breakpoint.GetNumLocations() > 0, VALID_BREAKPOINT
)
process = target.LaunchSimple(None, None, self.get_process_working_directory())
self.assertTrue(process, "Created a process.")
self.assertEqual(process.GetState(), lldb.eStateStopped, "Stopped it too.")
thread_list = lldbutil.get_threads_stopped_at_breakpoint(process, breakpoint)
self.assertEqual(len(thread_list), 1)
thread = thread_list[0]
frame = thread.GetFrameAtIndex(0)
self.assertTrue(frame, "frame 0 is valid")
# Test the expression for mc->_foo
error = lldb.SBError()
ivar = frame.EvaluateExpression("(mc->_foo)")
self.assertTrue(ivar, "Got result for mc->_foo")
ivar_value = ivar.GetValueAsSigned(error)
self.assertSuccess(error)
self.assertEqual(ivar_value, 3)
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