| """ |
| Test breakpoint conditions with 'breakpoint modify -c <expr> id'. |
| """ |
| |
| import os, time |
| import re |
| import unittest2 |
| import lldb, lldbutil |
| from lldbtest import * |
| |
| class BreakpointConditionsTestCase(TestBase): |
| |
| mydir = "breakpoint_conditions" |
| |
| @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin") |
| def test_with_dsym_and_run_command(self): |
| """Exercise breakpoint condition with 'breakpoint modify -c <expr> id'.""" |
| self.buildDsym() |
| self.breakpoint_conditions() |
| |
| @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin") |
| @python_api_test |
| def test_with_dsym_and_python_api(self): |
| """Use Python APIs to set breakpoint conditions.""" |
| self.buildDsym() |
| self.breakpoint_conditions_python() |
| |
| def test_with_dwarf_and_run_command(self): |
| """Exercise breakpoint condition with 'breakpoint modify -c <expr> id'.""" |
| self.buildDwarf() |
| self.breakpoint_conditions() |
| |
| @python_api_test |
| def test_with_dwarf_and_python_api(self): |
| """Use Python APIs to set breakpoint conditions.""" |
| self.buildDwarf() |
| self.breakpoint_conditions_python() |
| |
| def setUp(self): |
| # Call super's setUp(). |
| TestBase.setUp(self) |
| # Find the line number to of function 'c'. |
| self.line1 = line_number('main.c', '// Find the line number of function "c" here.') |
| self.line2 = line_number('main.c', "// Find the line number of c's parent call here.") |
| |
| def breakpoint_conditions(self): |
| """Exercise breakpoint condition with 'breakpoint modify -c <expr> id'.""" |
| exe = os.path.join(os.getcwd(), "a.out") |
| self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET) |
| |
| # Create a breakpoint by function name 'c'. |
| self.expect("breakpoint set -n c", BREAKPOINT_CREATED, |
| startstr = "Breakpoint created: 1: name = 'c', locations = 1") |
| |
| # And set a condition on the breakpoint to stop on when 'val == 3'. |
| self.runCmd("breakpoint modify -c 'val == 3' 1") |
| |
| # Now run the program. |
| self.runCmd("run", RUN_SUCCEEDED) |
| |
| # The process should be stopped at this point. |
| self.expect("process status", PROCESS_STOPPED, |
| patterns = ['Process .* stopped']) |
| |
| # 'frame variable -t val' should return 3 due to breakpoint condition. |
| self.expect("frame variable -t val", VARIABLES_DISPLAYED_CORRECTLY, |
| startstr = '(int) val = 3') |
| |
| # Also check the hit count, which should be 3, by design. |
| self.expect("breakpoint list -f", BREAKPOINT_HIT_THRICE, |
| substrs = ["resolved = 1", |
| "Condition: val == 3", |
| "hit count = 3"]) |
| |
| # The frame #0 should correspond to main.c:36, the executable statement |
| # in function name 'c'. And the parent frame should point to main.c:24. |
| self.expect("thread backtrace", STOPPED_DUE_TO_BREAKPOINT_CONDITION, |
| #substrs = ["stop reason = breakpoint"], |
| patterns = ["frame #0.*main.c:%d" % self.line1, |
| "frame #1.*main.c:%d" % self.line2]) |
| |
| # Test that "breakpoint modify -c ''" clears the condition for the last |
| # created breakpoint, so that when the breakpoint hits, val == 1. |
| self.runCmd("process kill") |
| self.runCmd("breakpoint modify -c ''") |
| self.expect("breakpoint list -f", BREAKPOINT_STATE_CORRECT, matching=False, |
| substrs = ["Condition:"]) |
| |
| # Now run the program again. |
| self.runCmd("run", RUN_SUCCEEDED) |
| |
| # The process should be stopped at this point. |
| self.expect("process status", PROCESS_STOPPED, |
| patterns = ['Process .* stopped']) |
| |
| # 'frame variable -t val' should return 1 since it is the first breakpoint hit. |
| self.expect("frame variable -t val", VARIABLES_DISPLAYED_CORRECTLY, |
| startstr = '(int) val = 1') |
| |
| |
| def breakpoint_conditions_python(self): |
| """Use Python APIs to set breakpoint conditions.""" |
| exe = os.path.join(os.getcwd(), "a.out") |
| |
| # Create a target by the debugger. |
| target = self.dbg.CreateTarget(exe) |
| self.assertTrue(target.IsValid(), VALID_TARGET) |
| |
| # Now create a breakpoint on main.c by name 'c'. |
| breakpoint = target.BreakpointCreateByName('c', 'a.out') |
| #print "breakpoint:", breakpoint |
| self.assertTrue(breakpoint.IsValid() and |
| breakpoint.GetNumLocations() == 1, |
| VALID_BREAKPOINT) |
| |
| # We didn't associate a thread index with the breakpoint, so it should be invalid. |
| self.assertTrue(breakpoint.GetThreadIndex() == lldb.UINT32_MAX, |
| "The thread index should be invalid") |
| # The thread name should be invalid, too. |
| self.assertTrue(breakpoint.GetThreadName() is None, |
| "The thread name should be invalid") |
| |
| # Let's set the thread index for this breakpoint and verify that it is, |
| # indeed, being set correctly. |
| breakpoint.SetThreadIndex(1) # There's only one thread for the process. |
| self.assertTrue(breakpoint.GetThreadIndex() == 1, |
| "The thread index has been set correctly") |
| |
| # Get the breakpoint location from breakpoint after we verified that, |
| # indeed, it has one location. |
| location = breakpoint.GetLocationAtIndex(0) |
| self.assertTrue(location.IsValid() and |
| location.IsEnabled(), |
| VALID_BREAKPOINT_LOCATION) |
| |
| # Set the condition on the breakpoint location. |
| location.SetCondition('val == 3') |
| self.expect(location.GetCondition(), exe=False, |
| startstr = 'val == 3') |
| |
| # Now launch the process, and do not stop at entry point. |
| error = lldb.SBError() |
| self.process = target.Launch (self.dbg.GetListener(), None, None, os.ctermid(), os.ctermid(), os.ctermid(), None, 0, False, error) |
| |
| self.process = target.GetProcess() |
| self.assertTrue(self.process.IsValid(), PROCESS_IS_VALID) |
| |
| # Frame #0 should be on self.line1 and the break condition should hold. |
| frame0 = self.process.GetThreadAtIndex(0).GetFrameAtIndex(0) |
| var = frame0.FindValue('val', lldb.eValueTypeVariableArgument) |
| self.assertTrue(frame0.GetLineEntry().GetLine() == self.line1 and |
| var.GetValue(frame0) == '3') |
| |
| # The hit count for the breakpoint should be 3. |
| self.assertTrue(breakpoint.GetHitCount() == 3) |
| |
| self.process.Continue() |
| |
| |
| if __name__ == '__main__': |
| import atexit |
| lldb.SBDebugger.Initialize() |
| atexit.register(lambda: lldb.SBDebugger.Terminate()) |
| unittest2.main() |