95c453a221
For convenience, we had added the folder that dotest.py was in to sys.path, so that we could easily write things like `import lldbutil` from anywhere and any test. This introduces a subtle problem when using Python's package system, because when unittest2 imports a particular test suite, the test suite is detached from the package. Thus, writing "import lldbutil" from dotest imports it as part of the package, and writing the same line from a test does a fresh import since the importing module was not part of the same package. The real way to fix this is to use absolute imports everywhere. Instead of writing "import lldbutil", we need to write "import lldbsuite.test.util". This patch fixes up that and all other similar cases, and additionally removes the script directory from sys.path to ensure that this can't happen again. llvm-svn: 251886
88 lines
3.1 KiB
Python
88 lines
3.1 KiB
Python
"""
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Test "print object" where another thread blocks the print object from making progress.
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"""
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from __future__ import print_function
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import use_lldb_suite
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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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@skipUnlessDarwin
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class PrintObjTestCase(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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# My source program.
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self.source = "blocked.m"
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# Find the line numbers to break at.
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self.line = line_number(self.source, '// Set a breakpoint here.')
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def test_print_obj(self):
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"""
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Test "print object" where another thread blocks the print object from making progress.
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Set a breakpoint on the line in my_pthread_routine. Then switch threads
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to the main thread, and do print the lock_me object. Since that will
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try to get the lock already gotten by my_pthread_routime thread, it will
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have to switch to running all threads, and that should then succeed.
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"""
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d = {'EXE': 'b.out'}
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self.build(dictionary=d)
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self.setTearDownCleanup(dictionary=d)
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exe = os.path.join(os.getcwd(), 'b.out')
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target = self.dbg.CreateTarget(exe)
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self.assertTrue(target, VALID_TARGET)
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breakpoint = target.BreakpointCreateByLocation(self.source, self.line)
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self.assertTrue(breakpoint, VALID_BREAKPOINT)
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self.runCmd("breakpoint list")
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# Launch the process, and do not stop at the entry point.
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process = target.LaunchSimple (None, None, self.get_process_working_directory())
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self.runCmd("thread backtrace all")
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# Let's get the current stopped thread. We'd like to switch to the
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# other thread to issue our 'po lock_me' command.
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import lldbsuite.test.lldbutil as lldbutil
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this_thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonBreakpoint)
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self.assertTrue(this_thread)
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# Find the other thread. The iteration protocol of SBProcess and the
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# rich comparison methods (__eq__/__ne__) of SBThread come in handy.
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other_thread = None
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for t in process:
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if t != this_thread:
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other_thread = t
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break
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# Set the other thread as the selected thread to issue our 'po' command.other
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self.assertTrue(other_thread)
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process.SetSelectedThread(other_thread)
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if self.TraceOn():
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print("selected thread:" + lldbutil.get_description(other_thread))
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self.runCmd("thread backtrace")
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# We want to traverse the frame to the one corresponding to blocked.m to
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# issue our 'po lock_me' command.
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depth = other_thread.GetNumFrames()
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for i in range(depth):
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frame = other_thread.GetFrameAtIndex(i)
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name = frame.GetFunctionName()
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if name == 'main':
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other_thread.SetSelectedFrame(i)
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if self.TraceOn():
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print("selected frame:" + lldbutil.get_description(frame))
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break
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self.expect("po lock_me", OBJECT_PRINTED_CORRECTLY,
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substrs = ['I am pretty special.'])
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