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Diffstat (limited to 'packages/Python/lldbsuite/test/functionalities/watchpoint/watchpoint_set_command/TestWatchLocationWithWatchSet.py')
-rw-r--r-- | packages/Python/lldbsuite/test/functionalities/watchpoint/watchpoint_set_command/TestWatchLocationWithWatchSet.py | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/packages/Python/lldbsuite/test/functionalities/watchpoint/watchpoint_set_command/TestWatchLocationWithWatchSet.py b/packages/Python/lldbsuite/test/functionalities/watchpoint/watchpoint_set_command/TestWatchLocationWithWatchSet.py new file mode 100644 index 000000000000..6bdac7024847 --- /dev/null +++ b/packages/Python/lldbsuite/test/functionalities/watchpoint/watchpoint_set_command/TestWatchLocationWithWatchSet.py @@ -0,0 +1,89 @@ +""" +Test lldb watchpoint that uses 'watchpoint set -w write -s size' to watch a pointed location with size. +""" + +from __future__ import print_function + + + +import os, time +import lldb +from lldbsuite.test.lldbtest import * +import lldbsuite.test.lldbutil as lldbutil + +class WatchLocationUsingWatchpointSetTestCase(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.') + # This is for verifying that watch location works. + self.violating_func = "do_bad_thing_with_location"; + # Build dictionary to have unique executable names for each test method. + + @expectedFailureAndroid(archs=['arm', 'aarch64']) # Watchpoints not supported + @expectedFailureWindows("llvm.org/pr24446") # WINDOWS XFAIL TRIAGE - Watchpoints not supported on Windows + def test_watchlocation_using_watchpoint_set(self): + """Test watching a location with 'watchpoint set expression -w write -s size' option.""" + self.build() + self.setTearDownCleanup() + + exe = os.path.join(os.getcwd(), 'a.out') + 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 pointed to by 'g_char_ptr' and + # with offset as 7. + # The main.cpp, by design, misbehaves by not following the agreed upon + # protocol of only accessing the allowable index range of [0, 6]. + self.expect("watchpoint set expression -w write -s 1 -- g_char_ptr + 7", WATCHPOINT_CREATED, + substrs = ['Watchpoint created', 'size = 1', 'type = w']) + self.runCmd("expr unsigned val = g_char_ptr[7]; val") + self.expect(self.res.GetOutput().splitlines()[0], exe=False, + endstr = ' = 0') + + # 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), but + # only once. The stop reason of the thread should be watchpoint. + self.expect("thread list", STOPPED_DUE_TO_WATCHPOINT, + substrs = ['stopped', + 'stop reason = watchpoint', + self.violating_func]) + + # Switch to the thread stopped due to watchpoint and issue some commands. + self.switch_to_thread_with_stop_reason(lldb.eStopReasonWatchpoint) + self.runCmd("thread backtrace") + self.runCmd("expr unsigned val = g_char_ptr[7]; val") + self.expect(self.res.GetOutput().splitlines()[0], exe=False, + endstr = ' = 99') + + # Use the '-v' option to do verbose listing of the watchpoint. + # The hit count should now be the same as the number of threads that + # stopped on a watchpoint. + threads = lldbutil.get_stopped_threads(self.process(), lldb.eStopReasonWatchpoint) + self.expect("watchpoint list -v", + substrs = ['hit_count = %d' % len(threads)]) + + self.runCmd("thread backtrace all") |