| """ |
| A stress-test of sorts for LLDB's handling of threads in the inferior. |
| |
| This test sets a breakpoint in the main thread where test parameters (numbers of |
| threads) can be adjusted, runs the inferior to that point, and modifies the |
| locals that control the event thread counts. This test also sets a breakpoint in |
| breakpoint_func (the function executed by each 'breakpoint' thread) and a |
| watchpoint on a global modified in watchpoint_func. The inferior is continued |
| until exit or a crash takes place, and the number of events seen by LLDB is |
| verified to match the expected number of events. |
| """ |
| |
| import os, signal, time |
| import unittest2 |
| import lldb |
| from lldbtest import * |
| import lldbutil |
| |
| # ================================================== |
| # Dictionary of signal names |
| # ================================================== |
| signal_names = dict((getattr(signal, n), n) \ |
| for n in dir(signal) if n.startswith('SIG') and '_' not in n ) |
| |
| |
| class ConcurrentEventsTestCase(TestBase): |
| |
| mydir = os.path.join("functionalities", "thread", "concurrent_events") |
| |
| # |
| ## Tests for multiple threads that generate a single event. |
| # |
| @unittest2.skipIf(TestBase.skipLongRunningTest(), "Skip this long running test") |
| @dwarf_test |
| def test_many_breakpoints_dwarf(self): |
| """Test 100 breakpoints from 100 threads.""" |
| self.buildDwarf(dictionary=self.getBuildFlags()) |
| self.do_thread_actions(num_breakpoint_threads=100) |
| |
| @skipIfLinux # llvm.org/pr16714 - LLDB sometimes crashes when setting watchpoints in multithreaded programs |
| @unittest2.skipIf(TestBase.skipLongRunningTest(), "Skip this long running test") |
| @dwarf_test |
| def test_many_watchpoints_dwarf(self): |
| """Test 100 watchpoints from 100 threads.""" |
| self.buildDwarf(dictionary=self.getBuildFlags()) |
| self.do_thread_actions(num_watchpoint_threads=100) |
| |
| @unittest2.skipIf(TestBase.skipLongRunningTest(), "Skip this long running test") |
| @dwarf_test |
| def test_many_signals_dwarf(self): |
| """Test 100 signals from 100 threads.""" |
| self.buildDwarf(dictionary=self.getBuildFlags()) |
| self.do_thread_actions(num_signal_threads=100) |
| |
| @unittest2.skipIf(TestBase.skipLongRunningTest(), "Skip this long running test") |
| @dwarf_test |
| def test_many_crash_dwarf(self): |
| """Test 100 threads that cause a segfault.""" |
| self.buildDwarf(dictionary=self.getBuildFlags()) |
| self.do_thread_actions(num_crash_threads=100) |
| |
| |
| # |
| ## Tests for concurrent signal and breakpoint |
| # |
| @expectedFailureFreeBSD("llvm.org/pr16696") # threaded inferior not yet implemented on FreeBSD |
| @dwarf_test |
| def test_signal_break_dwarf(self): |
| """Test signal and a breakpoint in multiple threads.""" |
| self.buildDwarf(dictionary=self.getBuildFlags()) |
| self.do_thread_actions(num_breakpoint_threads=1, num_signal_threads=1) |
| |
| @expectedFailureFreeBSD("llvm.org/pr16696") # threaded inferior not yet implemented on FreeBSD |
| @dwarf_test |
| def test_delay_signal_break_dwarf(self): |
| """Test (1-second delay) signal and a breakpoint in multiple threads.""" |
| self.buildDwarf(dictionary=self.getBuildFlags()) |
| self.do_thread_actions(num_breakpoint_threads=1, num_delay_signal_threads=1) |
| |
| @expectedFailureFreeBSD("llvm.org/pr16696") # threaded inferior not yet implemented on FreeBSD |
| @dwarf_test |
| def test_signal_delay_break_dwarf(self): |
| """Test signal and a (1 second delay) breakpoint in multiple threads.""" |
| self.buildDwarf(dictionary=self.getBuildFlags()) |
| self.do_thread_actions(num_delay_breakpoint_threads=1, num_signal_threads=1) |
| |
| |
| # |
| ## Tests for concurrent watchpoint and breakpoint |
| # |
| @dwarf_test |
| @skipIfLinux # llvm.org/pr16714 - LLDB sometimes crashes when setting watchpoints in multithreaded programs |
| def test_watch_break_dwarf(self): |
| """Test watchpoint and a breakpoint in multiple threads.""" |
| self.buildDwarf(dictionary=self.getBuildFlags()) |
| self.do_thread_actions(num_breakpoint_threads=1, num_watchpoint_threads=1) |
| |
| @expectedFailureFreeBSD('llvm.org/pr16706') # Watchpoints fail on FreeBSD |
| @dwarf_test |
| @skipIfLinux # llvm.org/pr16714 - LLDB sometimes crashes when setting watchpoints in multithreaded programs |
| def test_delay_watch_break_dwarf(self): |
| """Test (1-second delay) watchpoint and a breakpoint in multiple threads.""" |
| self.buildDwarf(dictionary=self.getBuildFlags()) |
| self.do_thread_actions(num_breakpoint_threads=1, num_delay_watchpoint_threads=1) |
| |
| @expectedFailureFreeBSD('llvm.org/pr16706') # Watchpoints fail on FreeBSD |
| @dwarf_test |
| @skipIfLinux # llvm.org/pr16714 - LLDB sometimes crashes when setting watchpoints in multithreaded programs |
| def test_watch_break_dwarf(self): |
| """Test watchpoint and a (1 second delay) breakpoint in multiple threads.""" |
| self.buildDwarf(dictionary=self.getBuildFlags()) |
| self.do_thread_actions(num_delay_breakpoint_threads=1, num_watchpoint_threads=1) |
| |
| # |
| ## Tests for concurrent signal and watchpoint |
| # |
| @expectedFailureFreeBSD('llvm.org/pr16706') # Watchpoints fail on FreeBSD |
| @dwarf_test |
| @skipIfLinux # llvm.org/pr16714 - LLDB sometimes crashes when setting watchpoints in multithreaded programs |
| def test_signal_watch_dwarf(self): |
| """Test a watchpoint and a signal in multiple threads.""" |
| self.buildDwarf(dictionary=self.getBuildFlags()) |
| self.do_thread_actions(num_signal_threads=1, num_watchpoint_threads=1) |
| |
| @expectedFailureFreeBSD('llvm.org/pr16706') # Watchpoints fail on FreeBSD |
| @dwarf_test |
| @skipIfLinux # llvm.org/pr16714 - LLDB sometimes crashes when setting watchpoints in multithreaded programs |
| def test_delay_signal_watch_dwarf(self): |
| """Test a watchpoint and a (1 second delay) signal in multiple threads.""" |
| self.buildDwarf(dictionary=self.getBuildFlags()) |
| self.do_thread_actions(num_delay_signal_threads=1, num_watchpoint_threads=1) |
| |
| @expectedFailureFreeBSD('llvm.org/pr16706') # Watchpoints fail on FreeBSD |
| @dwarf_test |
| @skipIfLinux # llvm.org/pr16714 - LLDB sometimes crashes when setting watchpoints in multithreaded programs |
| def test_signal_delay_watch_dwarf(self): |
| """Test a (1 second delay) watchpoint and a signal in multiple threads.""" |
| self.buildDwarf(dictionary=self.getBuildFlags()) |
| self.do_thread_actions(num_signal_threads=1, num_delay_watchpoint_threads=1) |
| |
| |
| # |
| ## Tests for multiple breakpoint threads |
| # |
| @expectedFailureFreeBSD("llvm.org/pr16696") # threaded inferior not yet implemented on FreeBSD |
| @dwarf_test |
| def test_two_breakpoint_threads_dwarf(self): |
| """Test two threads that trigger a breakpoint. """ |
| self.buildDwarf(dictionary=self.getBuildFlags()) |
| self.do_thread_actions(num_breakpoint_threads=2) |
| |
| @expectedFailureFreeBSD("llvm.org/pr16696") # threaded inferior not yet implemented on FreeBSD |
| @dwarf_test |
| def test_breakpoint_one_delay_breakpoint_threads_dwarf(self): |
| """Test threads that trigger a breakpoint where one thread has a 1 second delay. """ |
| self.buildDwarf(dictionary=self.getBuildFlags()) |
| self.do_thread_actions(num_breakpoint_threads=1, |
| num_delay_breakpoint_threads=1) |
| |
| @expectedFailureFreeBSD("llvm.org/pr16696") # threaded inferior not yet implemented on FreeBSD |
| @dwarf_test |
| def test_two_breakpoints_one_signal_dwarf(self): |
| """Test two threads that trigger a breakpoint and one signal thread. """ |
| self.buildDwarf(dictionary=self.getBuildFlags()) |
| self.do_thread_actions(num_breakpoint_threads=2, num_signal_threads=1) |
| |
| @expectedFailureFreeBSD("llvm.org/pr16696") # threaded inferior not yet implemented on FreeBSD |
| @dwarf_test |
| def test_breakpoint_delay_breakpoint_one_signal_dwarf(self): |
| """Test two threads that trigger a breakpoint (one with a 1 second delay) and one signal thread. """ |
| self.buildDwarf(dictionary=self.getBuildFlags()) |
| self.do_thread_actions(num_breakpoint_threads=1, |
| num_delay_breakpoint_threads=1, |
| num_signal_threads=1) |
| |
| @expectedFailureFreeBSD("llvm.org/pr16696") # threaded inferior not yet implemented on FreeBSD |
| @dwarf_test |
| def test_two_breakpoints_one_delay_signal_dwarf(self): |
| """Test two threads that trigger a breakpoint and one (1 second delay) signal thread. """ |
| self.buildDwarf(dictionary=self.getBuildFlags()) |
| self.do_thread_actions(num_breakpoint_threads=2, num_delay_signal_threads=1) |
| |
| @expectedFailureFreeBSD('llvm.org/pr16706') # Watchpoints fail on FreeBSD |
| @dwarf_test |
| @skipIfLinux # llvm.org/pr16714 - LLDB sometimes crashes when setting watchpoints in multithreaded programs |
| def test_two_breakpoints_one_watchpoint_dwarf(self): |
| """Test two threads that trigger a breakpoint and one watchpoint thread. """ |
| self.buildDwarf(dictionary=self.getBuildFlags()) |
| self.do_thread_actions(num_breakpoint_threads=2, num_watchpoint_threads=1) |
| |
| @expectedFailureFreeBSD('llvm.org/pr16706') # Watchpoints fail on FreeBSD |
| @dwarf_test |
| @skipIfLinux # llvm.org/pr16714 - LLDB sometimes crashes when setting watchpoints in multithreaded programs |
| def test_breakpoints_delayed_breakpoint_one_watchpoint_dwarf(self): |
| """Test a breakpoint, a delayed breakpoint, and one watchpoint thread. """ |
| self.buildDwarf(dictionary=self.getBuildFlags()) |
| self.do_thread_actions(num_breakpoint_threads=1, |
| num_delay_breakpoint_threads=1, |
| num_watchpoint_threads=1) |
| |
| # |
| ## Tests for multiple watchpoint threads |
| # |
| @expectedFailureFreeBSD('llvm.org/pr16706') # Watchpoints fail on FreeBSD |
| @dwarf_test |
| @skipIfLinux # llvm.org/pr16714 - LLDB sometimes crashes when setting watchpoints in multithreaded programs |
| def test_two_watchpoint_threads_dwarf(self): |
| """Test two threads that trigger a watchpoint. """ |
| self.buildDwarf(dictionary=self.getBuildFlags()) |
| self.do_thread_actions(num_watchpoint_threads=2) |
| |
| @expectedFailureFreeBSD('llvm.org/pr16706') # Watchpoints fail on FreeBSD |
| @dwarf_test |
| @skipIfLinux # llvm.org/pr16714 - LLDB sometimes crashes when setting watchpoints in multithreaded programs |
| def test_watchpoint_with_delay_waychpoint_threads_dwarf(self): |
| """Test two threads that trigger a watchpoint where one thread has a 1 second delay. """ |
| self.buildDwarf(dictionary=self.getBuildFlags()) |
| self.do_thread_actions(num_watchpoint_threads=1, |
| num_delay_watchpoint_threads=1) |
| |
| @expectedFailureFreeBSD('llvm.org/pr16706') # Watchpoints fail on FreeBSD |
| @dwarf_test |
| @skipIfLinux # llvm.org/pr16714 - LLDB sometimes crashes when setting watchpoints in multithreaded programs |
| def test_two_watchpoints_one_breakpoint_dwarf(self): |
| """Test two threads that trigger a watchpoint and one breakpoint thread. """ |
| self.buildDwarf(dictionary=self.getBuildFlags()) |
| self.do_thread_actions(num_watchpoint_threads=2, num_breakpoint_threads=1) |
| |
| @expectedFailureFreeBSD('llvm.org/pr16706') # Watchpoints fail on FreeBSD |
| @dwarf_test |
| @skipIfLinux # llvm.org/pr16714 - LLDB sometimes crashes when setting watchpoints in multithreaded programs |
| def test_two_watchpoints_one_delay_breakpoint_dwarf(self): |
| """Test two threads that trigger a watchpoint and one (1 second delay) breakpoint thread. """ |
| self.buildDwarf(dictionary=self.getBuildFlags()) |
| self.do_thread_actions(num_watchpoint_threads=2, num_delay_breakpoint_threads=1) |
| |
| @expectedFailureFreeBSD('llvm.org/pr16706') # Watchpoints fail on FreeBSD |
| @dwarf_test |
| @skipIfLinux # llvm.org/pr16714 - LLDB sometimes crashes when setting watchpoints in multithreaded programs |
| def test_watchpoint_delay_watchpoint_one_breakpoint_dwarf(self): |
| """Test two threads that trigger a watchpoint (one with a 1 second delay) and one breakpoint thread. """ |
| self.buildDwarf(dictionary=self.getBuildFlags()) |
| self.do_thread_actions(num_watchpoint_threads=1, |
| num_delay_watchpoint_threads=1, |
| num_breakpoint_threads=1) |
| |
| @expectedFailureFreeBSD('llvm.org/pr16706') # Watchpoints fail on FreeBSD |
| @dwarf_test |
| @skipIfLinux # llvm.org/pr16714 - LLDB sometimes crashes when setting watchpoints in multithreaded programs |
| def test_two_watchpoints_one_signal_dwarf(self): |
| """Test two threads that trigger a watchpoint and one signal thread. """ |
| self.buildDwarf(dictionary=self.getBuildFlags()) |
| self.do_thread_actions(num_watchpoint_threads=2, num_signal_threads=1) |
| |
| # |
| ## Test for watchpoint, signal and breakpoint happening concurrently |
| # |
| @dwarf_test |
| @skipIfLinux # llvm.org/pr16714 - LLDB sometimes crashes when setting watchpoints in multithreaded programs |
| def test_signal_watch_break_dwarf(self): |
| """Test a signal/watchpoint/breakpoint in multiple threads.""" |
| self.buildDwarf(dictionary=self.getBuildFlags()) |
| self.do_thread_actions(num_signal_threads=1, |
| num_watchpoint_threads=1, |
| num_breakpoint_threads=1) |
| |
| @dwarf_test |
| @skipIfLinux # llvm.org/pr16714 - LLDB sometimes crashes when setting watchpoints in multithreaded programs |
| def test_signal_watch_break_dwarf(self): |
| """Test one signal thread with 5 watchpoint and breakpoint threads.""" |
| self.buildDwarf(dictionary=self.getBuildFlags()) |
| self.do_thread_actions(num_signal_threads=1, |
| num_watchpoint_threads=5, |
| num_breakpoint_threads=5) |
| |
| @expectedFailureFreeBSD('llvm.org/pr16706') # Watchpoints fail on FreeBSD |
| @dwarf_test |
| @skipIfLinux # llvm.org/pr16714 - LLDB sometimes crashes when setting watchpoints in multithreaded programs |
| def test_signal_watch_break_dwarf(self): |
| """Test with 5 watchpoint and breakpoint threads.""" |
| self.buildDwarf(dictionary=self.getBuildFlags()) |
| self.do_thread_actions(num_watchpoint_threads=5, |
| num_breakpoint_threads=5) |
| |
| |
| # |
| ## Test for crashing threads happening concurrently with other events |
| # |
| @expectedFailureFreeBSD("llvm.org/pr16696") # threaded inferior not yet implemented on FreeBSD |
| @dwarf_test |
| def test_crash_with_break_dwarf(self): |
| """ Test a thread that crashes while another thread hits a breakpoint.""" |
| self.buildDwarf(dictionary=self.getBuildFlags()) |
| self.do_thread_actions(num_crash_threads=1, num_breakpoint_threads=1) |
| |
| @expectedFailureFreeBSD('llvm.org/pr16706') # Watchpoints fail on FreeBSD |
| @dwarf_test |
| @skipIfLinux # llvm.org/pr16714 - LLDB sometimes crashes when setting watchpoints in multithreaded programs |
| def test_crash_with_watchpoint_dwarf(self): |
| """ Test a thread that crashes while another thread hits a watchpoint.""" |
| self.buildDwarf(dictionary=self.getBuildFlags()) |
| self.do_thread_actions(num_crash_threads=1, num_watchpoint_threads=1) |
| |
| @expectedFailureFreeBSD("llvm.org/pr16696") # threaded inferior not yet implemented on FreeBSD |
| @dwarf_test |
| def test_crash_with_signal_dwarf(self): |
| """ Test a thread that crashes while another thread generates a signal.""" |
| self.buildDwarf(dictionary=self.getBuildFlags()) |
| self.do_thread_actions(num_crash_threads=1, num_signal_threads=1) |
| |
| @expectedFailureFreeBSD('llvm.org/pr16706') # Watchpoints fail on FreeBSD |
| @dwarf_test |
| @skipIfLinux # llvm.org/pr16714 - LLDB sometimes crashes when setting watchpoints in multithreaded programs |
| def test_crash_with_watchpoint_breakpoint_signal_dwarf(self): |
| """ Test a thread that crashes while other threads generate a signal and hit a watchpoint and breakpoint. """ |
| self.buildDwarf(dictionary=self.getBuildFlags()) |
| self.do_thread_actions(num_crash_threads=1, |
| num_breakpoint_threads=1, |
| num_signal_threads=1, |
| num_watchpoint_threads=1) |
| |
| @expectedFailureFreeBSD('llvm.org/pr16706') # Watchpoints fail on FreeBSD |
| @dwarf_test |
| @skipIfLinux # llvm.org/pr16714 - LLDB sometimes crashes when setting watchpoints in multithreaded programs |
| def test_delayed_crash_with_breakpoint_watchpoint_dwarf(self): |
| """ Test a thread with a delayed crash while other threads hit a watchpoint and a breakpoint. """ |
| self.buildDwarf(dictionary=self.getBuildFlags()) |
| self.do_thread_actions(num_delay_crash_threads=1, |
| num_breakpoint_threads=1, |
| num_watchpoint_threads=1) |
| |
| @expectedFailureFreeBSD("llvm.org/pr16696") # threaded inferior not yet implemented on FreeBSD |
| @dwarf_test |
| def test_delayed_crash_with_breakpoint_signal_dwarf(self): |
| """ Test a thread with a delayed crash while other threads generate a signal and hit a breakpoint. """ |
| self.buildDwarf(dictionary=self.getBuildFlags()) |
| self.do_thread_actions(num_delay_crash_threads=1, |
| num_breakpoint_threads=1, |
| num_signal_threads=1) |
| |
| def setUp(self): |
| # Call super's setUp(). |
| TestBase.setUp(self) |
| # Find the line number for our breakpoint. |
| self.filename = 'main.cpp' |
| self.thread_breakpoint_line = line_number(self.filename, '// Set breakpoint here') |
| self.setup_breakpoint_line = line_number(self.filename, '// Break here and adjust num') |
| self.finish_breakpoint_line = line_number(self.filename, '// Break here and verify one thread is active') |
| |
| def describe_threads(self): |
| ret = [] |
| for x in self.inferior_process: |
| id = x.GetIndexID() |
| reason = x.GetStopReason() |
| status = "stopped" if x.IsStopped() else "running" |
| reason_str = lldbutil.stop_reason_to_str(reason) |
| if reason == lldb.eStopReasonBreakpoint: |
| bpid = x.GetStopReasonDataAtIndex(0) |
| bp = self.inferior_target.FindBreakpointByID(bpid) |
| reason_str = "%s hit %d times" % (lldbutil.get_description(bp), bp.GetHitCount()) |
| elif reason == lldb.eStopReasonWatchpoint: |
| watchid = x.GetStopReasonDataAtIndex(0) |
| watch = self.inferior_target.FindWatchpointByID(watchid) |
| reason_str = "%s hit %d times" % (lldbutil.get_description(watch), watch.GetHitCount()) |
| elif reason == lldb.eStopReasonSignal: |
| reason_str = "signal %s" % (signal_names[x.GetStopReasonDataAtIndex(0)]) |
| |
| location = "\t".join([lldbutil.get_description(x.GetFrameAtIndex(i)) for i in range(x.GetNumFrames())]) |
| ret.append("thread %d %s due to %s at\n\t%s" % (id, status, reason_str, location)) |
| return ret |
| |
| def add_breakpoint(self, line, descriptions): |
| """ Adds a breakpoint at self.filename:line and appends its description to descriptions, and |
| returns the LLDB SBBreakpoint object. |
| """ |
| |
| bpno = lldbutil.run_break_set_by_file_and_line(self, self.filename, line, num_expected_locations=-1) |
| bp = self.inferior_target.FindBreakpointByID(bpno) |
| descriptions.append(": file = 'main.cpp', line = %d" % self.finish_breakpoint_line) |
| return bp |
| |
| def inferior_done(self): |
| """ Returns true if the inferior is done executing all the event threads (and is stopped at self.finish_breakpoint, |
| or has terminated execution. |
| """ |
| return self.finish_breakpoint.GetHitCount() > 0 or \ |
| self.crash_count > 0 or \ |
| self.inferior_process.GetState == lldb.eStateExited |
| |
| def do_thread_actions(self, |
| num_breakpoint_threads = 0, |
| num_signal_threads = 0, |
| num_watchpoint_threads = 0, |
| num_crash_threads = 0, |
| num_delay_breakpoint_threads = 0, |
| num_delay_signal_threads = 0, |
| num_delay_watchpoint_threads = 0, |
| num_delay_crash_threads = 0): |
| """ Sets a breakpoint in the main thread where test parameters (numbers of threads) can be adjusted, runs the inferior |
| to that point, and modifies the locals that control the event thread counts. Also sets a breakpoint in |
| breakpoint_func (the function executed by each 'breakpoint' thread) and a watchpoint on a global modified in |
| watchpoint_func. The inferior is continued until exit or a crash takes place, and the number of events seen by LLDB |
| is verified to match the expected number of events. |
| """ |
| exe = os.path.join(os.getcwd(), "a.out") |
| self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET) |
| |
| # Get the target |
| self.inferior_target = self.dbg.GetSelectedTarget() |
| |
| expected_bps = [] |
| |
| # Initialize all the breakpoints (main thread/aux thread) |
| self.setup_breakpoint = self.add_breakpoint(self.setup_breakpoint_line, expected_bps) |
| self.finish_breakpoint = self.add_breakpoint(self.finish_breakpoint_line, expected_bps) |
| |
| # Set the thread breakpoint |
| if num_breakpoint_threads + num_delay_breakpoint_threads > 0: |
| self.thread_breakpoint = self.add_breakpoint(self.thread_breakpoint_line, expected_bps) |
| |
| # Verify breakpoints |
| self.expect("breakpoint list -f", "Breakpoint locations shown correctly", substrs = expected_bps) |
| |
| # Run the program. |
| self.runCmd("run", RUN_SUCCEEDED) |
| |
| # Check we are at line self.setup_breakpoint |
| self.expect("thread backtrace", STOPPED_DUE_TO_BREAKPOINT, |
| substrs = ["stop reason = breakpoint 1."]) |
| |
| # Initialize the (single) watchpoint on the global variable (g_watchme) |
| if num_watchpoint_threads + num_delay_watchpoint_threads > 0: |
| self.runCmd("watchpoint set variable g_watchme") |
| for w in self.inferior_target.watchpoint_iter(): |
| self.thread_watchpoint = w |
| self.assertTrue("g_watchme" in str(self.thread_watchpoint), "Watchpoint location not shown correctly") |
| |
| # Get the process |
| self.inferior_process = self.inferior_target.GetProcess() |
| |
| # We should be stopped at the setup site where we can set the number of |
| # threads doing each action (break/crash/signal/watch) |
| self.assertEqual(self.inferior_process.GetNumThreads(), 1, 'Expected to stop before any additional threads are spawned.') |
| |
| self.runCmd("expr num_breakpoint_threads=%d" % num_breakpoint_threads) |
| self.runCmd("expr num_crash_threads=%d" % num_crash_threads) |
| self.runCmd("expr num_signal_threads=%d" % num_signal_threads) |
| self.runCmd("expr num_watchpoint_threads=%d" % num_watchpoint_threads) |
| |
| self.runCmd("expr num_delay_breakpoint_threads=%d" % num_delay_breakpoint_threads) |
| self.runCmd("expr num_delay_crash_threads=%d" % num_delay_crash_threads) |
| self.runCmd("expr num_delay_signal_threads=%d" % num_delay_signal_threads) |
| self.runCmd("expr num_delay_watchpoint_threads=%d" % num_delay_watchpoint_threads) |
| |
| # Continue the inferior so threads are spawned |
| self.runCmd("continue") |
| |
| # Make sure we see all the threads. The inferior program's threads all synchronize with a pseudo-barrier; that is, |
| # the inferior program ensures all threads are started and running before any thread triggers its 'event'. |
| num_threads = self.inferior_process.GetNumThreads() |
| expected_num_threads = num_breakpoint_threads + num_delay_breakpoint_threads \ |
| + num_signal_threads + num_delay_signal_threads \ |
| + num_watchpoint_threads + num_delay_watchpoint_threads \ |
| + num_crash_threads + num_delay_crash_threads + 1 |
| self.assertEqual(num_threads, expected_num_threads, |
| 'Expected to see %d threads, but seeing %d. Details:\n%s' % (expected_num_threads, |
| num_threads, |
| "\n\t".join(self.describe_threads()))) |
| |
| self.signal_count = len(lldbutil.get_stopped_threads(self.inferior_process, lldb.eStopReasonSignal)) |
| self.crash_count = len(lldbutil.get_stopped_threads(self.inferior_process, lldb.eStopReasonException)) |
| |
| # Run to completion (or crash) |
| while not self.inferior_done(): |
| if self.TraceOn(): |
| self.runCmd("thread backtrace all") |
| self.runCmd("continue") |
| self.signal_count += len(lldbutil.get_stopped_threads(self.inferior_process, lldb.eStopReasonSignal)) |
| self.crash_count += len(lldbutil.get_stopped_threads(self.inferior_process, lldb.eStopReasonException)) |
| |
| if num_crash_threads > 0 or num_delay_crash_threads > 0: |
| # Expecting a crash |
| self.assertTrue(self.crash_count > 0, |
| "Expecting at least one thread to crash. Details: %s" % "\t\n".join(self.describe_threads())) |
| |
| # Ensure the zombie process is reaped |
| self.runCmd("process kill") |
| |
| elif num_crash_threads == 0 and num_delay_crash_threads == 0: |
| # There should be a single active thread (the main one) which hit the breakpoint after joining |
| self.assertEqual(1, self.finish_breakpoint.GetHitCount(), "Expected main thread (finish) breakpoint to be hit once") |
| |
| num_threads = self.inferior_process.GetNumThreads() |
| self.assertEqual(1, num_threads, "Expecting 1 thread but seeing %d. Details:%s" % (num_threads, |
| "\n\t".join(self.describe_threads()))) |
| self.runCmd("continue") |
| |
| # The inferior process should have exited without crashing |
| self.assertEqual(0, self.crash_count, "Unexpected thread(s) in crashed state") |
| self.assertTrue(self.inferior_process.GetState() == lldb.eStateExited, PROCESS_EXITED) |
| |
| # Verify the number of actions took place matches expected numbers |
| expected_breakpoint_threads = num_delay_breakpoint_threads + num_breakpoint_threads |
| breakpoint_hit_count = self.thread_breakpoint.GetHitCount() if expected_breakpoint_threads > 0 else 0 |
| self.assertEqual(expected_breakpoint_threads, breakpoint_hit_count, |
| "Expected %d breakpoint hits, but got %d" % (expected_breakpoint_threads, breakpoint_hit_count)) |
| |
| expected_signal_threads = num_delay_signal_threads + num_signal_threads |
| self.assertEqual(expected_signal_threads, self.signal_count, |
| "Expected %d stops due to signal delivery, but got %d" % (expected_signal_threads, self.signal_count)) |
| |
| expected_watchpoint_threads = num_delay_watchpoint_threads + num_watchpoint_threads |
| watchpoint_hit_count = self.thread_watchpoint.GetHitCount() if expected_watchpoint_threads > 0 else 0 |
| self.assertEqual(expected_watchpoint_threads, watchpoint_hit_count, |
| "Expected %d watchpoint hits, got %d" % (expected_watchpoint_threads, watchpoint_hit_count)) |
| |
| |
| if __name__ == '__main__': |
| import atexit |
| lldb.SBDebugger.Initialize() |
| atexit.register(lambda: lldb.SBDebugger.Terminate()) |
| unittest2.main() |
