1"""
2Test the solution to issue 11581.
3valobj.AddressOf() returns None when an address is
4expected in a SyntheticChildrenProvider
5"""
6
7
8
9import lldb
10from lldbsuite.test.decorators import *
11from lldbsuite.test.lldbtest import *
12from lldbsuite.test import lldbutil
13
14
15class Issue11581TestCase(TestBase):
16
17    @skipIfWindows #This test is now flaky on windows, see llvm.org/pr24778
18    def test_11581_commands(self):
19        # This is the function to remove the custom commands in order to have a
20        # clean slate for the next test case.
21        def cleanup():
22            self.runCmd('type synthetic clear', check=False)
23
24        # Execute the cleanup function during test case tear down.
25        self.addTearDownHook(cleanup)
26
27        """valobj.AddressOf() should return correct values."""
28        self.build()
29
30        (target, process, thread, bkpt) = lldbutil.run_to_source_breakpoint(self,
31                                              'Set breakpoint here.',
32                                              lldb.SBFileSpec("main.cpp", False))
33        self.runCmd("command script import --allow-reload s11588.py")
34        self.runCmd(
35            "type synthetic add --python-class s11588.Issue11581SyntheticProvider StgClosure")
36
37        self.expect("expr --show-types -- *((StgClosure*)(r14-1))",
38                    substrs=["(StgClosure) $",
39                             "(StgClosure *) &$", "0x",
40                             "addr = ",
41                             "load_address = "])
42
43        # register r14 is an x86_64 extension let's skip this part of the test
44        # if we are on a different architecture
45        if self.getArchitecture() == 'x86_64':
46            target = self.dbg.GetSelectedTarget()
47            process = target.GetProcess()
48            frame = process.GetSelectedThread().GetSelectedFrame()
49            pointer = frame.FindVariable("r14")
50            addr = pointer.GetValueAsUnsigned(0)
51            self.assertNotEqual(addr, 0, "could not read pointer to StgClosure")
52            addr = addr - 1
53            self.runCmd("register write r14 %d" % addr)
54            self.expect(
55                "register read r14", substrs=[
56                    "0x", hex(addr)[
57                        2:].rstrip("L")])  # Remove trailing 'L' if it exists
58            self.expect("expr --show-types -- *(StgClosure*)$r14",
59                        substrs=["(StgClosure) $",
60                                 "(StgClosure *) &$", "0x",
61                                 hex(addr)[2:].rstrip("L"),
62                                 "addr = ",
63                                 str(addr),
64                                 "load_address = ",
65                                 str(addr)])
66