| """ |
| Test watchpoint condition API. |
| """ |
| |
| from __future__ import print_function |
| |
| |
| import os |
| import time |
| import lldb |
| from lldbsuite.test.decorators import * |
| from lldbsuite.test.lldbtest import * |
| from lldbsuite.test import lldbutil |
| |
| |
| class WatchpointConditionAPITestCase(TestBase): |
| |
| mydir = TestBase.compute_mydir(__file__) |
| |
| def setUp(self): |
| # Call super's setUp(). |
| TestBase.setUp(self) |
| # Our simple source filename. |
| self.source = 'main.cpp' |
| # Find the line number to break inside main(). |
| self.line = line_number( |
| self.source, '// Set break point at this line.') |
| # And the watchpoint variable declaration line number. |
| self.decl = line_number(self.source, |
| '// Watchpoint variable declaration.') |
| # Build dictionary to have unique executable names for each test |
| # method. |
| self.exe_name = self.testMethodName |
| self.d = {'CXX_SOURCES': self.source, 'EXE': self.exe_name} |
| |
| @expectedFailureAll( |
| oslist=["linux"], |
| archs=["aarch64"], |
| bugnumber="llvm.org/pr27710") |
| @skipIfWindows # Watchpoints not supported on Windows, and this test hangs |
| def test_watchpoint_cond_api(self): |
| """Test watchpoint condition API.""" |
| self.build(dictionary=self.d) |
| self.setTearDownCleanup(dictionary=self.d) |
| exe = self.getBuildArtifact(self.exe_name) |
| |
| # Create a target by the debugger. |
| target = self.dbg.CreateTarget(exe) |
| self.assertTrue(target, VALID_TARGET) |
| |
| # Now create a breakpoint on main.c. |
| breakpoint = target.BreakpointCreateByLocation(self.source, self.line) |
| self.assertTrue(breakpoint and |
| breakpoint.GetNumLocations() == 1, |
| VALID_BREAKPOINT) |
| |
| # Now launch the process, and do not stop at the entry point. |
| process = target.LaunchSimple( |
| None, None, self.get_process_working_directory()) |
| |
| # We should be stopped due to the breakpoint. Get frame #0. |
| process = target.GetProcess() |
| self.assertTrue(process.GetState() == lldb.eStateStopped, |
| PROCESS_STOPPED) |
| thread = lldbutil.get_stopped_thread( |
| process, lldb.eStopReasonBreakpoint) |
| frame0 = thread.GetFrameAtIndex(0) |
| |
| # Watch 'global' for write. |
| value = frame0.FindValue('global', lldb.eValueTypeVariableGlobal) |
| error = lldb.SBError() |
| watchpoint = value.Watch(True, False, True, error) |
| self.assertTrue(value and watchpoint, |
| "Successfully found the variable and set a watchpoint") |
| self.DebugSBValue(value) |
| |
| # Now set the condition as "global==5". |
| watchpoint.SetCondition('global==5') |
| self.expect(watchpoint.GetCondition(), exe=False, |
| startstr='global==5') |
| |
| # Hide stdout if not running with '-t' option. |
| if not self.TraceOn(): |
| self.HideStdout() |
| |
| print(watchpoint) |
| |
| # Continue. Expect the program to stop due to the variable being |
| # written to. |
| process.Continue() |
| |
| if (self.TraceOn()): |
| lldbutil.print_stacktraces(process) |
| |
| thread = lldbutil.get_stopped_thread( |
| process, lldb.eStopReasonWatchpoint) |
| self.assertTrue(thread, "The thread stopped due to watchpoint") |
| self.DebugSBValue(value) |
| |
| # Verify that the condition is met. |
| self.assertTrue(value.GetValueAsUnsigned() == 5) |
