| """ |
| Test breakpoint ignore count features. |
| """ |
| |
| from __future__ import print_function |
| |
| |
| import os |
| import time |
| import re |
| import lldb |
| from lldbsuite.test.decorators import * |
| from lldbsuite.test.lldbtest import * |
| from lldbsuite.test import lldbutil |
| |
| |
| class BreakpointIgnoreCountTestCase(TestBase): |
| |
| mydir = TestBase.compute_mydir(__file__) |
| |
| def test_with_run_command(self): |
| """Exercise breakpoint ignore count with 'breakpoint set -i <count>'.""" |
| self.build() |
| self.breakpoint_ignore_count() |
| |
| @add_test_categories(['pyapi']) |
| def test_with_python_api(self): |
| """Use Python APIs to set breakpoint ignore count.""" |
| self.build() |
| self.breakpoint_ignore_count_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', '// b(2) -> c(2) Find the call site of b(2).') |
| self.line3 = line_number( |
| 'main.c', '// a(3) -> c(3) Find the call site of c(3).') |
| self.line4 = line_number( |
| 'main.c', '// a(3) -> c(3) Find the call site of a(3).') |
| self.line5 = line_number( |
| 'main.c', '// Find the call site of c in main.') |
| |
| def breakpoint_ignore_count(self): |
| """Exercise breakpoint ignore count with 'breakpoint set -i <count>'.""" |
| exe = self.getBuildArtifact("a.out") |
| self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET) |
| |
| # Create a breakpoint in main.c at line1. |
| lldbutil.run_break_set_by_file_and_line( |
| self, |
| 'main.c', |
| self.line1, |
| extra_options='-i 1', |
| num_expected_locations=1, |
| loc_exact=True) |
| |
| # 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']) |
| |
| # Also check the hit count, which should be 2, due to ignore count of |
| # 1. |
| self.expect("breakpoint list -f", BREAKPOINT_HIT_THRICE, |
| substrs=["resolved = 1", |
| "hit count = 2"]) |
| |
| # The frame #0 should correspond to main.c:37, the executable statement |
| # in function name 'c'. And frame #2 should point to main.c:45. |
| self.expect("thread backtrace", STOPPED_DUE_TO_BREAKPOINT_IGNORE_COUNT, |
| #substrs = ["stop reason = breakpoint"], |
| patterns=["frame #0.*main.c:%d" % self.line1, |
| "frame #2.*main.c:%d" % self.line2]) |
| |
| # continue -i 1 is the same as setting the ignore count to 1 again, try that: |
| # Now run the program. |
| self.runCmd("process continue -i 1", RUN_SUCCEEDED) |
| |
| # The process should be stopped at this point. |
| self.expect("process status", PROCESS_STOPPED, |
| patterns=['Process .* stopped']) |
| |
| # Also check the hit count, which should be 2, due to ignore count of |
| # 1. |
| self.expect("breakpoint list -f", BREAKPOINT_HIT_THRICE, |
| substrs=["resolved = 1", |
| "hit count = 4"]) |
| |
| # The frame #0 should correspond to main.c:37, the executable statement |
| # in function name 'c'. And frame #2 should point to main.c:45. |
| self.expect("thread backtrace", STOPPED_DUE_TO_BREAKPOINT_IGNORE_COUNT, |
| #substrs = ["stop reason = breakpoint"], |
| patterns=["frame #0.*main.c:%d" % self.line1, |
| "frame #1.*main.c:%d" % self.line5]) |
| |
| def breakpoint_ignore_count_python(self): |
| """Use Python APIs to set breakpoint ignore count.""" |
| exe = self.getBuildArtifact("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') |
| self.assertTrue(breakpoint and |
| breakpoint.GetNumLocations() == 1, |
| VALID_BREAKPOINT) |
| |
| # 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 ignore count on the breakpoint location. |
| location.SetIgnoreCount(2) |
| self.assertTrue(location.GetIgnoreCount() == 2, |
| "SetIgnoreCount() works correctly") |
| |
| # 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 main.c:37, frame#1 should be on main.c:25, and |
| # frame#2 should be on main.c:48. |
| # lldbutil.print_stacktraces(process) |
| 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") |
| frame0 = thread.GetFrameAtIndex(0) |
| frame1 = thread.GetFrameAtIndex(1) |
| frame2 = thread.GetFrameAtIndex(2) |
| self.assertTrue(frame0.GetLineEntry().GetLine() == self.line1 and |
| frame1.GetLineEntry().GetLine() == self.line3 and |
| frame2.GetLineEntry().GetLine() == self.line4, |
| STOPPED_DUE_TO_BREAKPOINT_IGNORE_COUNT) |
| |
| # The hit count for the breakpoint should be 3. |
| self.assertTrue(breakpoint.GetHitCount() == 3) |
| |
| process.Continue() |