2238dcc393
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60 lines
2.2 KiB
Python
60 lines
2.2 KiB
Python
"""Test that we don't read objc class tables early in process startup."""
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import time
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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 TestEarlyProcessLaunch(TestBase):
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NO_DEBUG_INFO_TESTCASE = True
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@skipUnlessDarwin
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@skipIfAsan # rdar://103359354
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@skipIfOutOfTreeDebugserver # 2022-12-13 FIXME: skipping system debugserver
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# until this feature is included in the system
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# debugserver.
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@add_test_categories(["pyapi"])
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def test_early_process_launch(self):
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"""Test that we don't read objc class tables early in proc startup"""
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self.build()
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###
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### Hit a breakpoint on the first malloc() call, which
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### is before libSystem has finished initializing. At
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### this point, we should not read the objc class tables.
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### Then continue to main(), which is past libSystem
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### initializing. Try again, and they should be read.
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###
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### Use the types logging to detect the difference.
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target, process, _, bkpt = lldbutil.run_to_name_breakpoint(self, "malloc")
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target.DisableAllBreakpoints()
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target.BreakpointCreateByName("main")
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logfile_early = os.path.join(self.getBuildDir(), "types-log-early.txt")
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self.addTearDownHook(lambda: self.runCmd("log disable lldb types"))
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self.runCmd("log enable -f %s lldb types" % logfile_early)
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self.runCmd("expression global = 15")
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err = process.Continue()
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self.assertTrue(err.Success())
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logfile_later = os.path.join(self.getBuildDir(), "types-log-later.txt")
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self.runCmd("log enable -f %s lldb types" % logfile_later)
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self.runCmd("expression global = 25")
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self.assertTrue(os.path.exists(logfile_early))
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self.assertTrue(os.path.exists(logfile_later))
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early_text = open(logfile_early).read()
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later_text = open(logfile_later).read()
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self.assertIn("ran: no, retry: yes", early_text)
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self.assertNotIn("ran: no, retry: yes", later_text)
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self.assertNotIn("ran: yes, retry: no", early_text)
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self.assertIn("ran: yes, retry: no", later_text)
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