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https://github.com/Gericom/teak-llvm.git
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783550be62
Starting with Windows 10, the Windows loader is itself multi-threaded, meaning that the loader spins up a few threads to do process initialization before it executes main. Windows delivers these notifications asynchronously and they can come out of order, so we can't be sure that the first thread we get a notification about is actually the zero'th thread. This patch fixes this by requesting the thread stopped at the breakpoint that was specified, rather than getting thread 0 and verifying that it is stopped at a breakpoint. Differential Revision: http://reviews.llvm.org/D16247 llvm-svn: 258432
264 lines
10 KiB
Python
264 lines
10 KiB
Python
"""
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Test thread states.
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"""
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from __future__ import print_function
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import unittest2
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import os, time
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import lldb
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from lldbsuite.test.lldbtest import *
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import lldbsuite.test.lldbutil as lldbutil
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class ThreadStateTestCase(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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@expectedFailureDarwin("rdar://15367566")
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@expectedFailureFreeBSD('llvm.org/pr15824')
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@expectedFailureLinux("llvm.org/pr15824") # thread states not properly maintained
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def test_state_after_breakpoint(self):
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"""Test thread state after breakpoint."""
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self.build(dictionary=self.getBuildFlags(use_cpp11=False))
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self.thread_state_after_breakpoint_test()
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@skipIfDarwin # 'llvm.org/pr23669', cause Python crash randomly
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@expectedFailureDarwin('llvm.org/pr23669')
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@expectedFailureFreeBSD('llvm.org/pr15824')
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@expectedFailureWindows("llvm.org/pr24660")
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def test_state_after_continue(self):
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"""Test thread state after continue."""
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self.build(dictionary=self.getBuildFlags(use_cpp11=False))
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self.thread_state_after_continue_test()
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@skipIfDarwin # 'llvm.org/pr23669', cause Python crash randomly
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@expectedFailureDarwin('llvm.org/pr23669')
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@expectedFailureWindows("llvm.org/pr24660")
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@unittest2.expectedFailure("llvm.org/pr16712") # thread states not properly maintained
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def test_state_after_expression(self):
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"""Test thread state after expression."""
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self.build(dictionary=self.getBuildFlags(use_cpp11=False))
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self.thread_state_after_expression_test()
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@unittest2.expectedFailure("llvm.org/pr16712") # thread states not properly maintained
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@expectedFailureWindows("llvm.org/pr24668") # Breakpoints not resolved correctly
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def test_process_interrupt(self):
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"""Test process interrupt."""
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self.build(dictionary=self.getBuildFlags(use_cpp11=False))
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self.process_interrupt_test()
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@unittest2.expectedFailure("llvm.org/pr15824") # thread states not properly maintained
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@expectedFailureWindows("llvm.org/pr24668") # Breakpoints not resolved correctly
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def test_process_state(self):
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"""Test thread states (comprehensive)."""
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self.build(dictionary=self.getBuildFlags(use_cpp11=False))
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self.thread_states_test()
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def setUp(self):
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# Call super's setUp().
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TestBase.setUp(self)
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# Find the line numbers for our breakpoints.
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self.break_1 = line_number('main.cpp', '// Set first breakpoint here')
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self.break_2 = line_number('main.cpp', '// Set second breakpoint here')
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def thread_state_after_breakpoint_test(self):
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"""Test thread state after breakpoint."""
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exe = os.path.join(os.getcwd(), "a.out")
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self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
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# This should create a breakpoint in the main thread.
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bp = lldbutil.run_break_set_by_file_and_line (self, "main.cpp", self.break_1, num_expected_locations=1)
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# Run the program.
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self.runCmd("run", RUN_SUCCEEDED)
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# Get the target process
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target = self.dbg.GetSelectedTarget()
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process = target.GetProcess()
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thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonBreakpoint)
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self.assertIsNotNone(thread)
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# Make sure the thread is in the stopped state.
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self.assertTrue(thread.IsStopped(), "Thread state isn't \'stopped\' during breakpoint 1.")
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self.assertFalse(thread.IsSuspended(), "Thread state is \'suspended\' during breakpoint 1.")
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# Kill the process
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self.runCmd("process kill")
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def wait_for_running_event(self):
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listener = self.dbg.GetListener()
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if lldb.remote_platform:
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lldbutil.expect_state_changes(self, listener, [lldb.eStateConnected])
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lldbutil.expect_state_changes(self, listener, [lldb.eStateRunning])
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def thread_state_after_continue_test(self):
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"""Test thread state after continue."""
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exe = os.path.join(os.getcwd(), "a.out")
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self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
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# This should create a breakpoint in the main thread.
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lldbutil.run_break_set_by_file_and_line (self, "main.cpp", self.break_1, num_expected_locations=1)
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lldbutil.run_break_set_by_file_and_line (self, "main.cpp", self.break_2, num_expected_locations=1)
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# Run the program.
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self.runCmd("run", RUN_SUCCEEDED)
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# Get the target process
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target = self.dbg.GetSelectedTarget()
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process = target.GetProcess()
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thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonBreakpoint)
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self.assertIsNotNone(thread)
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# Continue, the inferior will go into an infinite loop waiting for 'g_test' to change.
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self.dbg.SetAsync(True)
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self.runCmd("continue")
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self.wait_for_running_event()
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# Check the thread state. It should be running.
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self.assertFalse(thread.IsStopped(), "Thread state is \'stopped\' when it should be running.")
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self.assertFalse(thread.IsSuspended(), "Thread state is \'suspended\' when it should be running.")
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# Go back to synchronous interactions
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self.dbg.SetAsync(False)
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# Kill the process
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self.runCmd("process kill")
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def thread_state_after_expression_test(self):
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"""Test thread state after expression."""
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exe = os.path.join(os.getcwd(), "a.out")
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self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
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# This should create a breakpoint in the main thread.
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lldbutil.run_break_set_by_file_and_line (self, "main.cpp", self.break_1, num_expected_locations=1)
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lldbutil.run_break_set_by_file_and_line (self, "main.cpp", self.break_2, num_expected_locations=1)
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# Run the program.
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self.runCmd("run", RUN_SUCCEEDED)
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# Get the target process
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target = self.dbg.GetSelectedTarget()
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process = target.GetProcess()
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thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonBreakpoint)
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self.assertIsNotNone(thread)
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# Get the inferior out of its loop
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self.runCmd("expression g_test = 1")
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# Check the thread state
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self.assertTrue(thread.IsStopped(), "Thread state isn't \'stopped\' after expression evaluation.")
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self.assertFalse(thread.IsSuspended(), "Thread state is \'suspended\' after expression evaluation.")
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# Let the process run to completion
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self.runCmd("process continue")
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def process_interrupt_test(self):
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"""Test process interrupt and continue."""
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exe = os.path.join(os.getcwd(), "a.out")
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self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
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# This should create a breakpoint in the main thread.
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lldbutil.run_break_set_by_file_and_line (self, "main.cpp", self.break_1, num_expected_locations=1)
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# Run the program.
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self.runCmd("run", RUN_SUCCEEDED)
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# Get the target process
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target = self.dbg.GetSelectedTarget()
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process = target.GetProcess()
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thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonBreakpoint)
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self.assertIsNotNone(thread)
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# Continue, the inferior will go into an infinite loop waiting for 'g_test' to change.
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self.dbg.SetAsync(True)
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self.runCmd("continue")
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self.wait_for_running_event()
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# Go back to synchronous interactions
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self.dbg.SetAsync(False)
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# Stop the process
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self.runCmd("process interrupt")
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self.assertEqual(thread.GetStopReason(), lldb.eStopReasonSignal)
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# Get the inferior out of its loop
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self.runCmd("expression g_test = 1")
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# Run to completion
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self.runCmd("continue")
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def thread_states_test(self):
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"""Test thread states (comprehensive)."""
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exe = os.path.join(os.getcwd(), "a.out")
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self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
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# This should create a breakpoint in the main thread.
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lldbutil.run_break_set_by_file_and_line (self, "main.cpp", self.break_1, num_expected_locations=1)
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lldbutil.run_break_set_by_file_and_line (self, "main.cpp", self.break_2, num_expected_locations=1)
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# Run the program.
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self.runCmd("run", RUN_SUCCEEDED)
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# Get the target process
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target = self.dbg.GetSelectedTarget()
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process = target.GetProcess()
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thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonBreakpoint)
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self.assertIsNotNone(thread)
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# Make sure the thread is in the stopped state.
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self.assertTrue(thread.IsStopped(), "Thread state isn't \'stopped\' during breakpoint 1.")
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self.assertFalse(thread.IsSuspended(), "Thread state is \'suspended\' during breakpoint 1.")
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# Continue, the inferior will go into an infinite loop waiting for 'g_test' to change.
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self.dbg.SetAsync(True)
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self.runCmd("continue")
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self.wait_for_running_event()
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# Check the thread state. It should be running.
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self.assertFalse(thread.IsStopped(), "Thread state is \'stopped\' when it should be running.")
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self.assertFalse(thread.IsSuspended(), "Thread state is \'suspended\' when it should be running.")
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# Go back to synchronous interactions
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self.dbg.SetAsync(False)
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# Stop the process
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self.runCmd("process interrupt")
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self.assertEqual(thread.GetState(), lldb.eStopReasonSignal)
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# Check the thread state
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self.assertTrue(thread.IsStopped(), "Thread state isn't \'stopped\' after process stop.")
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self.assertFalse(thread.IsSuspended(), "Thread state is \'suspended\' after process stop.")
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# Get the inferior out of its loop
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self.runCmd("expression g_test = 1")
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# Check the thread state
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self.assertTrue(thread.IsStopped(), "Thread state isn't \'stopped\' after expression evaluation.")
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self.assertFalse(thread.IsSuspended(), "Thread state is \'suspended\' after expression evaluation.")
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self.assertEqual(thread.GetState(), lldb.eStopReasonSignal)
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# Run to breakpoint 2
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self.runCmd("continue")
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self.assertEqual(thread.GetState(), lldb.eStopReasonBreakpoint)
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# Make sure both threads are stopped
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self.assertTrue(thread.IsStopped(), "Thread state isn't \'stopped\' during breakpoint 2.")
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self.assertFalse(thread.IsSuspended(), "Thread state is \'suspended\' during breakpoint 2.")
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# Run to completion
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self.runCmd("continue")
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# At this point, the inferior process should have exited.
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self.assertEqual(process.GetState(), lldb.eStateExited, PROCESS_EXITED)
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