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