| """ |
| Test hardware breakpoints for multiple threads. |
| """ |
| |
| 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 |
| |
| # Hardware breakpoints are supported only by platforms mentioned in oslist. |
| @skipUnlessPlatform(oslist=['linux']) |
| class HardwareBreakpointMultiThreadTestCase(TestBase): |
| NO_DEBUG_INFO_TESTCASE = True |
| |
| mydir = TestBase.compute_mydir(__file__) |
| |
| # LLDB supports hardware breakpoints for arm and aarch64 architectures. |
| @skipIf(archs=no_match(['arm', 'aarch64'])) |
| @expectedFailureAndroid |
| def test_hw_break_set_delete_multi_thread(self): |
| self.build() |
| self.setTearDownCleanup() |
| self.break_multi_thread('delete') |
| |
| # LLDB supports hardware breakpoints for arm and aarch64 architectures. |
| @skipIf(archs=no_match(['arm', 'aarch64'])) |
| @expectedFailureAndroid |
| def test_hw_break_set_disable_multi_thread(self): |
| self.build() |
| self.setTearDownCleanup() |
| self.break_multi_thread('disable') |
| |
| 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.first_stop = line_number( |
| self.source, 'Starting thread creation with hardware breakpoint set') |
| |
| def break_multi_thread(self, removal_type): |
| """Test that lldb hardware breakpoints work for multiple threads.""" |
| self.runCmd("file " + self.getBuildArtifact("a.out"), |
| CURRENT_EXECUTABLE_SET) |
| |
| # Stop in main before creating any threads. |
| lldbutil.run_break_set_by_file_and_line( |
| self, None, self.first_stop, 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 set a hardware breakpoint in thread function. |
| self.expect("breakpoint set -b hw_break_function --hardware", |
| substrs=[ |
| 'Breakpoint', |
| 'hw_break_function', |
| 'address = 0x']) |
| |
| # We should stop in hw_break_function function for 4 threads. |
| count = 0 |
| |
| while count < 2 : |
| |
| self.runCmd("process continue") |
| |
| # We should be stopped in hw_break_function |
| # The stop reason of the thread should be breakpoint. |
| self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT, |
| substrs=[ |
| 'stop reason = breakpoint', |
| 'hw_break_function']) |
| |
| # Continue the loop and test that we are stopped 4 times. |
| count += 1 |
| |
| if removal_type == 'delete': |
| self.runCmd("settings set auto-confirm true") |
| |
| # Now 'breakpoint delete' should just work fine without confirmation |
| # prompt from the command interpreter. |
| self.expect("breakpoint delete", |
| startstr="All breakpoints removed") |
| |
| # Restore the original setting of auto-confirm. |
| self.runCmd("settings clear auto-confirm") |
| |
| elif removal_type == 'disable': |
| self.expect("breakpoint disable", |
| startstr="All breakpoints disabled.") |
| |
| # Continue. Program should exit without stopping anywhere. |
| self.runCmd("process continue") |
| |
| # Process should have stopped and exited with status = 0 |
| self.expect("process status", PROCESS_STOPPED, |
| patterns=['Process .* exited with status = 0']) |