| """ |
| Test 'watchpoint command'. |
| """ |
| |
| import os, time |
| import unittest2 |
| import lldb |
| from lldbtest import * |
| import lldbutil |
| |
| class WatchpointLLDBCommandTestCase(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} |
| |
| @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin") |
| @dsym_test |
| def test_watchpoint_command_with_dsym(self): |
| """Test 'watchpoint command'.""" |
| self.buildDsym(dictionary=self.d) |
| self.setTearDownCleanup(dictionary=self.d) |
| self.watchpoint_command() |
| |
| @dwarf_test |
| def test_watchpoint_command_with_dwarf(self): |
| """Test 'watchpoint command'.""" |
| self.buildDwarf(dictionary=self.d) |
| self.setTearDownCleanup(dictionary=self.d) |
| self.watchpoint_command() |
| |
| @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin") |
| @dsym_test |
| def test_watchpoint_command_can_disable_a_watchpoint_with_dsym(self): |
| """Test that 'watchpoint command' action can disable a watchpoint after it is triggered.""" |
| self.buildDsym(dictionary=self.d) |
| self.setTearDownCleanup(dictionary=self.d) |
| self.watchpoint_command_can_disable_a_watchpoint() |
| |
| @dwarf_test |
| def test_watchpoint_command_can_disable_a_watchpoint_with_dwarf(self): |
| """Test that 'watchpoint command' action can disable a watchpoint after it is triggered.""" |
| self.buildDwarf(dictionary=self.d) |
| self.setTearDownCleanup(dictionary=self.d) |
| self.watchpoint_command_can_disable_a_watchpoint() |
| |
| def watchpoint_command(self): |
| """Do 'watchpoint command add'.""" |
| exe = os.path.join(os.getcwd(), self.exe_name) |
| self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET) |
| |
| # Add a breakpoint to set a watchpoint when stopped on the breakpoint. |
| lldbutil.run_break_set_by_file_and_line (self, None, self.line, num_expected_locations=1) |
| |
| # Run the program. |
| self.runCmd("run", RUN_SUCCEEDED) |
| |
| # We should be stopped again due to the breakpoint. |
| # The stop reason of the thread should be breakpoint. |
| self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT, |
| substrs = ['stopped', |
| 'stop reason = breakpoint']) |
| |
| # Now let's set a write-type watchpoint for 'global'. |
| self.expect("watchpoint set variable -w write global", WATCHPOINT_CREATED, |
| substrs = ['Watchpoint created', 'size = 4', 'type = w', |
| '%s:%d' % (self.source, self.decl)]) |
| |
| self.runCmd('watchpoint command add 1 -o "expr -- cookie = 777"') |
| |
| # List the watchpoint command we just added. |
| self.expect("watchpoint command list 1", |
| substrs = ['expr -- cookie = 777']) |
| |
| # Use the '-v' option to do verbose listing of the watchpoint. |
| # The hit count should be 0 initially. |
| self.expect("watchpoint list -v", |
| substrs = ['hit_count = 0']) |
| |
| self.runCmd("process continue") |
| |
| # We should be stopped again due to the watchpoint (write type). |
| # The stop reason of the thread should be watchpoint. |
| self.expect("thread backtrace", STOPPED_DUE_TO_WATCHPOINT, |
| substrs = ['stop reason = watchpoint']) |
| |
| # Check that the watchpoint snapshoting mechanism is working. |
| self.expect("watchpoint list -v", |
| substrs = ['old value:', ' = 0', |
| 'new value:', ' = 1']) |
| |
| # The watchpoint command "forced" our global variable 'cookie' to become 777. |
| self.expect("frame variable --show-globals cookie", |
| substrs = ['(int32_t)', 'cookie = 777']) |
| |
| def watchpoint_command_can_disable_a_watchpoint(self): |
| """Test that 'watchpoint command' action can disable a watchpoint after it is triggered.""" |
| exe = os.path.join(os.getcwd(), self.exe_name) |
| self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET) |
| |
| # Add a breakpoint to set a watchpoint when stopped on the breakpoint. |
| lldbutil.run_break_set_by_file_and_line (self, None, self.line, num_expected_locations=1) |
| |
| # Run the program. |
| self.runCmd("run", RUN_SUCCEEDED) |
| |
| # We should be stopped again due to the breakpoint. |
| # The stop reason of the thread should be breakpoint. |
| self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT, |
| substrs = ['stopped', |
| 'stop reason = breakpoint']) |
| |
| # Now let's set a write-type watchpoint for 'global'. |
| self.expect("watchpoint set variable -w write global", WATCHPOINT_CREATED, |
| substrs = ['Watchpoint created', 'size = 4', 'type = w', |
| '%s:%d' % (self.source, self.decl)]) |
| |
| self.runCmd('watchpoint command add 1 -o "watchpoint disable 1"') |
| |
| # List the watchpoint command we just added. |
| self.expect("watchpoint command list 1", |
| substrs = ['watchpoint disable 1']) |
| |
| # Use the '-v' option to do verbose listing of the watchpoint. |
| # The hit count should be 0 initially. |
| self.expect("watchpoint list -v", |
| substrs = ['hit_count = 0']) |
| |
| self.runCmd("process continue") |
| |
| # We should be stopped again due to the watchpoint (write type). |
| # The stop reason of the thread should be watchpoint. |
| self.expect("thread backtrace", STOPPED_DUE_TO_WATCHPOINT, |
| substrs = ['stop reason = watchpoint']) |
| |
| # Check that the watchpoint has been disabled. |
| self.expect("watchpoint list -v", |
| substrs = ['disabled']) |
| |
| self.runCmd("process continue") |
| |
| # There should be no more watchpoint hit and the process status should |
| # be 'exited'. |
| self.expect("process status", |
| substrs = ['exited']) |
| |
| |
| if __name__ == '__main__': |
| import atexit |
| lldb.SBDebugger.Initialize() |
| atexit.register(lambda: lldb.SBDebugger.Terminate()) |
| unittest2.main() |
