diff options
Diffstat (limited to 'packages/Python/lldbsuite/test/functionalities/breakpoint/breakpoint_conditions/TestBreakpointConditions.py')
| -rw-r--r-- | packages/Python/lldbsuite/test/functionalities/breakpoint/breakpoint_conditions/TestBreakpointConditions.py | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/packages/Python/lldbsuite/test/functionalities/breakpoint/breakpoint_conditions/TestBreakpointConditions.py b/packages/Python/lldbsuite/test/functionalities/breakpoint/breakpoint_conditions/TestBreakpointConditions.py new file mode 100644 index 000000000000..8c22c8fe869c --- /dev/null +++ b/packages/Python/lldbsuite/test/functionalities/breakpoint/breakpoint_conditions/TestBreakpointConditions.py @@ -0,0 +1,181 @@ +""" +Test breakpoint conditions with 'breakpoint modify -c <expr> id'. +""" + +from __future__ import print_function + + + +import os, time +import re +import lldb +import lldbsuite.test.lldbutil as lldbutil +from lldbsuite.test.lldbtest import * + +class BreakpointConditionsTestCase(TestBase): + + mydir = TestBase.compute_mydir(__file__) + + @skipIfWindows # Requires EE to support COFF on Windows (http://llvm.org/pr22232) + def test_breakpoint_condition_and_run_command(self): + """Exercise breakpoint condition with 'breakpoint modify -c <expr> id'.""" + self.build() + self.breakpoint_conditions() + + @skipIfWindows # Requires EE to support COFF on Windows (http://llvm.org/pr22232) + def test_breakpoint_condition_inline_and_run_command(self): + """Exercise breakpoint condition inline with 'breakpoint set'.""" + self.build() + self.breakpoint_conditions(inline=True) + + @skipIfWindows # Requires EE to support COFF on Windows (http://llvm.org/pr22232) + @add_test_categories(['pyapi']) + def test_breakpoint_condition_and_python_api(self): + """Use Python APIs to set breakpoint conditions.""" + self.build() + 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, inline=False): + """Exercise breakpoint condition with 'breakpoint modify -c <expr> id'.""" + exe = os.path.join(os.getcwd(), "a.out") + self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET) + + if inline: + # Create a breakpoint by function name 'c' and set the condition. + lldbutil.run_break_set_by_symbol (self, "c", extra_options="-c 'val == 3'", num_expected_locations=1, sym_exact=True) + else: + # Create a breakpoint by function name 'c'. + lldbutil.run_break_set_by_symbol (self, "c", num_expected_locations=1, sym_exact=True) + + # 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 --show-types val' should return 3 due to breakpoint condition. + self.expect("frame variable --show-types 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_ONCE, + substrs = ["resolved = 1", + "Condition: val == 3", + "hit count = 1"]) + + # 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 --show-types val' should return 1 since it is the first breakpoint hit. + self.expect("frame variable --show-types val", VARIABLES_DISPLAYED_CORRECTLY, + startstr = '(int) val = 1') + + self.runCmd("process kill") + self.runCmd("breakpoint disable") + + self.runCmd("breakpoint set -p Loop") + arch = self.getArchitecture() + if arch in ['x86_64', 'i386']: + self.runCmd("breakpoint modify -c ($eax&&i)") + elif arch in ['aarch64']: + self.runCmd("breakpoint modify -c ($x1&&i)") + elif arch in ['arm']: + self.runCmd("breakpoint modify -c ($r0&&i)") + elif re.match("mips",arch): + self.runCmd("breakpoint modify -c ($r2&&i)") + self.runCmd("run") + + self.expect("process status", PROCESS_STOPPED, + patterns = ['Process .* stopped']) + + self.runCmd("continue") + + self.expect("process status", PROCESS_EXITED, + patterns = ['Process .* exited']) + + 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, VALID_TARGET) + + # Now create a breakpoint on main.c by name 'c'. + breakpoint = target.BreakpointCreateByName('c', 'a.out') + #print("breakpoint:", breakpoint) + self.assertTrue(breakpoint 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 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. + process = target.LaunchSimple (None, None, self.get_process_working_directory()) + self.assertTrue(process, PROCESS_IS_VALID) + + # Frame #0 should be on self.line1 and the break condition should hold. + from lldbsuite.test.lldbutil import get_stopped_thread + thread = get_stopped_thread(process, lldb.eStopReasonBreakpoint) + self.assertTrue(thread.IsValid(), "There should be a thread stopped due to breakpoint condition") + frame0 = thread.GetFrameAtIndex(0) + var = frame0.FindValue('val', lldb.eValueTypeVariableArgument) + self.assertTrue(frame0.GetLineEntry().GetLine() == self.line1 and + var.GetValue() == '3') + + # The hit count for the breakpoint should be 1. + self.assertTrue(breakpoint.GetHitCount() == 1) + + process.Continue() |