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      1 """Test that lldb command 'process signal SIGUSR1' to send a signal to the inferior works."""
      2 
      3 import os, time, signal
      4 import unittest2
      5 import lldb
      6 from lldbtest import *
      7 import lldbutil
      8 
      9 class SendSignalTestCase(TestBase):
     10 
     11     mydir = os.path.join("functionalities", "signal")
     12 
     13     @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
     14     @dsym_test
     15     def test_with_dsym_and_run_command(self):
     16         """Test that lldb command 'process signal SIGUSR1' sends a signal to the inferior process."""
     17         self.buildDsym()
     18         self.send_signal()
     19 
     20     @dwarf_test
     21     def test_with_dwarf_and_run_command(self):
     22         """Test that lldb command 'process signal SIGUSR1' sends a signal to the inferior process."""
     23         self.buildDwarf()
     24         self.send_signal()
     25 
     26     def setUp(self):
     27         # Call super's setUp().
     28         TestBase.setUp(self)
     29         # Find the line number to break inside main().
     30         self.line = line_number('main.c', 'Put breakpoint here')
     31 
     32     def send_signal(self):
     33         """Test that lldb command 'process signal SIGUSR1' sends a signal to the inferior process."""
     34 
     35         exe = os.path.join(os.getcwd(), "a.out")
     36         self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
     37 
     38         # Break inside the main() function and immediately send a signal to the inferior after resuming.
     39         lldbutil.run_break_set_by_file_and_line (self, "main.c", self.line, num_expected_locations=1, loc_exact=True)
     40 
     41         self.runCmd("run", RUN_SUCCEEDED)
     42         self.runCmd("thread backtrace")
     43 
     44         # The stop reason of the thread should be breakpoint.
     45         self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
     46             substrs = ['stopped',
     47                        'stop reason = breakpoint'])
     48 
     49         # The breakpoint should have a hit count of 1.
     50         self.expect("breakpoint list -f", BREAKPOINT_HIT_ONCE,
     51             substrs = [' resolved, hit count = 1'])
     52 
     53         self.runCmd("process status")
     54         output = self.res.GetOutput()
     55         pid = re.match("Process (.*) stopped", output).group(1)
     56 
     57         # After resuming the process, send it a SIGUSR1 signal.
     58 
     59         # It is necessary at this point to make command interpreter interaction
     60         # be asynchronous, because we want to resume the process and to send it
     61         # a signal.
     62         self.dbg.SetAsync(True)
     63         self.runCmd("process continue")
     64         # Insert a delay of 1 second before doing the signaling stuffs.
     65         time.sleep(1)
     66 
     67         self.runCmd("process handle -n False -p True -s True SIGUSR1")
     68         #os.kill(int(pid), signal.SIGUSR1)
     69         self.runCmd("process signal SIGUSR1")
     70 
     71         # Insert a delay of 1 second before checking the process status.
     72         time.sleep(1)
     73         # Make the interaction mode be synchronous again.
     74         self.dbg.SetAsync(False)
     75         self.expect("process status", STOPPED_DUE_TO_SIGNAL,
     76             startstr = "Process %s stopped" % pid,
     77             substrs = ['stop reason = signal SIGUSR1'])
     78         self.expect("thread backtrace", STOPPED_DUE_TO_SIGNAL,
     79             substrs = ['stop reason = signal SIGUSR1'])
     80 
     81 
     82 if __name__ == '__main__':
     83     import atexit
     84     lldb.SBDebugger.Initialize()
     85     atexit.register(lambda: lldb.SBDebugger.Terminate())
     86     unittest2.main()
     87