text: """Test that lldb functions correctly after the inferior has crashed while in a recursive routine."""
  
  import os, time
  import unittest2
  import lldb, lldbutil, lldbplatformutil
  import sys
  from lldbtest import *
  
  class CrashingRecursiveInferiorTestCase(TestBase):
  
      mydir = TestBase.compute_mydir(__file__)
  
      @skipUnlessDarwin
      def test_recursive_inferior_crashing_dsym(self):
          """Test that lldb reliably catches the inferior crashing (command)."""
          self.buildDsym()
          self.recursive_inferior_crashing()
  
      @expectedFailureFreeBSD("llvm.org/pr23699 SIGSEGV is reported as exception, not signal")
      def test_recursive_inferior_crashing_dwarf(self):
          """Test that lldb reliably catches the inferior crashing (command)."""
          self.buildDwarf()
          self.recursive_inferior_crashing()
  
      @skipUnlessDarwin
      def test_recursive_inferior_crashing_registers_dsym(self):
          """Test that lldb reliably reads registers from the inferior after crashing (command)."""
          self.buildDsym()
          self.recursive_inferior_crashing_registers()
  
      def test_recursive_inferior_crashing_register_dwarf(self):
          """Test that lldb reliably reads registers from the inferior after crashing (command)."""
          self.buildDwarf()
          self.recursive_inferior_crashing_registers()
  
      @python_api_test
      def test_recursive_inferior_crashing_python(self):
          """Test that lldb reliably catches the inferior crashing (Python API)."""
          self.buildDefault()
          self.recursive_inferior_crashing_python()
  
      @skipUnlessDarwin
      def test_recursive_inferior_crashing_expr_dsym(self):
          """Test that the lldb expression interpreter can read from the inferior after crashing (command)."""
          self.buildDsym()
          self.recursive_inferior_crashing_expr()
  
      def test_recursive_inferior_crashing_expr_dwarf(self):
          """Test that the lldb expression interpreter can read from the inferior after crashing (command)."""
          self.buildDwarf()
          self.recursive_inferior_crashing_expr()
  
      @skipUnlessDarwin
      def test_recursive_inferior_crashing_step_dsym(self):
          """Test that lldb functions correctly after stepping through a crash."""
          self.buildDsym()
          self.recursive_inferior_crashing_step()
  
      def test_recursive_inferior_crashing_step_dwarf(self):
          """Test that stepping after a crash behaves correctly."""
          self.buildDwarf()
          self.recursive_inferior_crashing_step()
  
      @skipUnlessDarwin
      def test_recursive_inferior_crashing_step_after_break_dsym(self):
          """Test that stepping after a crash behaves correctly."""
          self.buildDsym()
          self.recursive_inferior_crashing_step_after_break()
  
      @skipIfFreeBSD # llvm.org/pr16684
      def test_recursive_inferior_crashing_step_after_break_dwarf(self):
          """Test that lldb functions correctly after stepping through a crash."""
          self.buildDwarf()
          self.recursive_inferior_crashing_step_after_break()
  
      @skipUnlessDarwin
      def test_recursive_inferior_crashing_expr_step_and_expr_dsym(self):
          """Test that lldb expressions work before and after stepping after a crash."""
          self.buildDsym()
          self.recursive_inferior_crashing_expr_step_expr()
  
      @expectedFailureFreeBSD('llvm.org/pr15989') # Couldn't allocate space for the stack frame
      @skipIfLinux # Inferior exits after stepping after a segfault. This is working as intended IMHO.
      def test_recursive_inferior_crashing_expr_step_and_expr_dwarf(self):
          """Test that lldb expressions work before and after stepping after a crash."""
          self.buildDwarf()
          self.recursive_inferior_crashing_expr_step_expr()
  
      def set_breakpoint(self, line):
          lldbutil.run_break_set_by_file_and_line (self, "main.c", line, num_expected_locations=1, loc_exact=True)
  
      def check_stop_reason(self):
          # We should have one crashing thread
          self.assertEquals(
                  len(lldbutil.get_crashed_threads(self, self.dbg.GetSelectedTarget().GetProcess())),
                  1,
                  STOPPED_DUE_TO_EXC_BAD_ACCESS)
  
      def setUp(self):
          # Call super's setUp().
          TestBase.setUp(self)
          # Find the line number of the crash.
          self.line = line_number('main.c', '// Crash here.')
  
      def recursive_inferior_crashing(self):
          """Inferior crashes upon launching; lldb should catch the event and stop."""
          exe = os.path.join(os.getcwd(), "a.out")
          self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
  
          self.runCmd("run", RUN_SUCCEEDED)
  
          # The exact stop reason depends on the platform
          if self.platformIsDarwin():
              stop_reason = 'stop reason = EXC_BAD_ACCESS'
          elif self.getPlatform() == "linux":
              stop_reason = 'stop reason = signal SIGSEGV'
          else:
              stop_reason = 'stop reason = invalid address'
          self.expect("thread list", STOPPED_DUE_TO_EXC_BAD_ACCESS,
              substrs = ['stopped',
                         stop_reason])
  
          # And it should report a backtrace that includes main and the crash site.
          self.expect("thread backtrace all",
              substrs = [stop_reason, 'main', 'argc', 'argv', 'recursive_function'])
  
          # And it should report the correct line number.
          self.expect("thread backtrace all",
              substrs = [stop_reason,
                         'main.c:%d' % self.line])
  
      def recursive_inferior_crashing_python(self):
          """Inferior crashes upon launching; lldb should catch the event and stop."""
          exe = os.path.join(os.getcwd(), "a.out")
  
          target = self.dbg.CreateTarget(exe)
          self.assertTrue(target, VALID_TARGET)
  
          # Now launch the process, and do not stop at entry point.
          # Both argv and envp are null.
          process = target.LaunchSimple (None, None, self.get_process_working_directory())
  
          if process.GetState() != lldb.eStateStopped:
              self.fail("Process should be in the 'stopped' state, "
                        "instead the actual state is: '%s'" %
                        lldbutil.state_type_to_str(process.GetState()))
  
          threads = lldbutil.get_crashed_threads(self, process)
          self.assertEqual(len(threads), 1, "Failed to stop the thread upon bad access exception")
  
          if self.TraceOn():
              lldbutil.print_stacktrace(threads[0])
  
      def recursive_inferior_crashing_registers(self):
          """Test that lldb can read registers after crashing."""
          exe = os.path.join(os.getcwd(), "a.out")
          self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
  
          self.runCmd("run", RUN_SUCCEEDED)
          self.check_stop_reason()
  
          # lldb should be able to read from registers from the inferior after crashing.
          lldbplatformutil.check_first_register_readable(self)
  
      def recursive_inferior_crashing_expr(self):
          """Test that the lldb expression interpreter can read symbols after crashing."""
          exe = os.path.join(os.getcwd(), "a.out")
          self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
  
          self.runCmd("run", RUN_SUCCEEDED)
          self.check_stop_reason()
  
          # The lldb expression interpreter should be able to read from addresses of the inferior after a crash.
          self.expect("p i",
              startstr = '(int) $0 =')
  
      def recursive_inferior_crashing_step(self):
          """Test that lldb functions correctly after stepping through a crash."""
          exe = os.path.join(os.getcwd(), "a.out")
          self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
  
          self.set_breakpoint(self.line)
          self.runCmd("run", RUN_SUCCEEDED)
  
          self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
              substrs = ['main.c:%d' % self.line,
                         'stop reason = breakpoint'])
  
          self.runCmd("next")
          self.check_stop_reason()
  
          # The lldb expression interpreter should be able to read from addresses of the inferior after a crash.
          self.expect("p i",
              substrs = ['(int) $0 ='])
  
          # lldb should be able to read from registers from the inferior after crashing.
          lldbplatformutil.check_first_register_readable(self)
  
          # And it should report the correct line number.
          self.expect("thread backtrace all",
              substrs = ['main.c:%d' % self.line])
  
      def recursive_inferior_crashing_step_after_break(self):
          """Test that lldb behaves correctly when stepping after a crash."""
          exe = os.path.join(os.getcwd(), "a.out")
          self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
  
          self.runCmd("run", RUN_SUCCEEDED)
          self.check_stop_reason()
  
          expected_state = 'exited' # Provide the exit code.
          if self.platformIsDarwin():
              expected_state = 'stopped' # TODO: Determine why 'next' and 'continue' have no effect after a crash.
          elif re.match(".*-.*-.*-android", self.dbg.GetSelectedPlatform().GetTriple()):
              expected_state = 'stopped' # android has a default SEGV handler, which will re-raise the signal, so we come up stopped again
  
  
          self.expect("next",
              substrs = ['Process', expected_state])
  
          if expected_state == 'exited':
              self.expect("thread list", error=True,substrs = ['Process must be launched'])
          else:
              self.check_stop_reason()
  
      def recursive_inferior_crashing_expr_step_expr(self):
          """Test that lldb expressions work before and after stepping after a crash."""
          exe = os.path.join(os.getcwd(), "a.out")
          self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
  
          self.runCmd("run", RUN_SUCCEEDED)
          self.check_stop_reason()
  
          # The lldb expression interpreter should be able to read from addresses of the inferior after a crash.
          self.expect("p null",
              startstr = '(char *) $0 = 0x0')
  
          self.runCmd("next")
  
          # The lldb expression interpreter should be able to read from addresses of the inferior after a step.
          self.expect("p null",
              startstr = '(char *) $1 = 0x0')
  
          self.check_stop_reason()
  
  if __name__ == '__main__':
      import atexit
      lldb.SBDebugger.Initialize()
      atexit.register(lambda: lldb.SBDebugger.Terminate())
      unittest2.main()
  