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https://github.com/Gericom/teak-llvm.git
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19474e1801
This module was originally intended to be imported by top-level scripts to be able to find the LLDB packages and third party libraries. Packages themselves shouldn't need to import it, because by the time it gets into the package, the top-level script should have already done this. Indeed, it was just adding the same values to sys.path multiple times, so this patch is essentially no functional change. To make sure it doesn't get re-introduced, we also delete the `use_lldb_suite` module from `lldbsuite/test`, although the original copy still remains in `lldb/test` llvm-svn: 251963
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 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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