| """ |
| Test that expr will time out and allow other threads to run if it blocks. |
| """ |
| |
| import os, time |
| import re |
| import unittest2 |
| import lldb, lldbutil |
| from lldbtest import * |
| |
| class ExprDoesntDeadlockTestCase(TestBase): |
| |
| mydir = os.path.join("functionalities", "expr-doesnt-deadlock") |
| |
| @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin") |
| def test_with_dsym_and_run_command(self): |
| """Test that expr will time out and allow other threads to run if it blocks - with dsym.""" |
| self.buildDsym() |
| self.expr_doesnt_deadlock() |
| |
| def test_with_dwarf_and_run_command(self): |
| """Test that expr will time out and allow other threads to run if it blocks.""" |
| self.buildDwarf() |
| self.expr_doesnt_deadlock() |
| |
| def setUp(self): |
| # Call super's setUp(). |
| TestBase.setUp(self) |
| |
| def expr_doesnt_deadlock (self): |
| """Test that expr will time out and allow other threads to run if it blocks.""" |
| exe = os.path.join(os.getcwd(), "a.out") |
| |
| # Create a target by the debugger. |
| target = self.dbg.CreateTarget(exe) |
| self.assertTrue(target, VALID_TARGET) |
| |
| # Now create a breakpoint at source line before call_me_to_get_lock gets called. |
| |
| main_file_spec = lldb.SBFileSpec ("locking.c") |
| breakpoint = target.BreakpointCreateBySourceRegex('Break here', main_file_spec) |
| if self.TraceOn(): |
| print "breakpoint:", breakpoint |
| self.assertTrue(breakpoint and |
| breakpoint.GetNumLocations() == 1, |
| VALID_BREAKPOINT) |
| |
| # Now launch the process, and do not stop at entry point. |
| process = target.LaunchSimple(None, None, os.getcwd()) |
| self.assertTrue(process, PROCESS_IS_VALID) |
| |
| # Frame #0 should be on self.line1 and the break condition should hold. |
| from lldbutil import get_stopped_thread |
| thread = get_stopped_thread(process, lldb.eStopReasonBreakpoint) |
| self.assertTrue(thread != None, "There should be a thread stopped due to breakpoint condition") |
| |
| frame0 = thread.GetFrameAtIndex(0) |
| |
| var = frame0.EvaluateExpression ("call_me_to_get_lock()") |
| self.assertTrue (var.IsValid()) |
| self.assertTrue (var.GetValueAsSigned (0) == 567) |
| |
| if __name__ == '__main__': |
| import atexit |
| lldb.SBDebugger.Initialize() |
| atexit.register(lambda: lldb.SBDebugger.Terminate()) |
| unittest2.main() |