700dd17399
Remove the forkSubprocess method and its bookkeeping. TestCreateAfterAttach is the only test using the fork method and I'm not convinced it adds enough to warrant the maintenance. Pavel suggested the same thing in D83815.
109 lines
3.9 KiB
Python
109 lines
3.9 KiB
Python
"""
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Test thread creation after process attach.
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"""
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import lldb
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from lldbsuite.test.decorators import *
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from lldbsuite.test.lldbtest import *
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from lldbsuite.test import lldbutil
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class CreateAfterAttachTestCase(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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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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self.break_3 = line_number('main.cpp', '// Set third breakpoint here')
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@skipIfFreeBSD # Hangs. May be the same as Linux issue llvm.org/pr16229 but
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# not yet investigated. Revisit once required functionality
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# is implemented for FreeBSD.
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# Occasionally hangs on Windows, may be same as other issues.
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@skipIfWindows
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@skipIfiOSSimulator
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@expectedFailureNetBSD
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def test_create_after_attach(self):
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"""Test thread creation after process attach."""
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self.build(dictionary=self.getBuildFlags(use_cpp11=False))
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exe = self.getBuildArtifact("a.out")
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# Spawn a new process
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popen = self.spawnSubprocess(exe)
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pid = popen.pid
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# Attach to the spawned process
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self.runCmd("process attach -p " + str(pid))
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target = self.dbg.GetSelectedTarget()
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process = target.GetProcess()
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self.assertTrue(process, PROCESS_IS_VALID)
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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(
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self, "main.cpp", self.break_1, num_expected_locations=1)
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# This should create a breakpoint in the second child thread.
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lldbutil.run_break_set_by_file_and_line(
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self, "main.cpp", self.break_2, num_expected_locations=1)
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# This should create a breakpoint in the first child thread.
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lldbutil.run_break_set_by_file_and_line(
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self, "main.cpp", self.break_3, num_expected_locations=1)
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# Note: With std::thread, we cannot rely on particular thread numbers. Using
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# std::thread may cause the program to spin up a thread pool (and it does on
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# Windows), so the thread numbers are non-deterministic.
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# Run to the first breakpoint
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self.runCmd("continue")
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# The stop reason of the thread should be breakpoint.
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self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
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substrs=['stopped',
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'* thread #',
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'main',
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'stop reason = breakpoint'])
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# Change a variable to escape the loop
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self.runCmd("expression main_thread_continue = 1")
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# Run to the second breakpoint
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self.runCmd("continue")
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# The stop reason of the thread should be breakpoint.
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self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
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substrs=['stopped',
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'* thread #',
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'thread_2_func',
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'stop reason = breakpoint'])
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# Change a variable to escape the loop
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self.runCmd("expression child_thread_continue = 1")
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# Run to the third breakpoint
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self.runCmd("continue")
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# The stop reason of the thread should be breakpoint.
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# Thread 3 may or may not have already exited.
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self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
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substrs=['stopped',
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'* thread #',
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'thread_1_func',
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'stop reason = breakpoint'])
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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.assertTrue(
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process.GetState() == lldb.eStateExited,
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PROCESS_EXITED)
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