packages/Python/lldbsuite/test/expression_command/issue_11588/Test11588.py

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