d5629b5d4d
When rebase_exec=true in DidAttach(), all modules are loaded before the rendezvous breakpoint is set, which means the LoadInterpreterModule() method is not called and m_interpreter_module is not initialized. This causes the very first rendezvous breakpoint hit with m_initial_modules_added=false to accidentally unload the module_sp that corresponds to the dynamic loader. This bug (introduced in D92187) was causing the rendezvous mechanism to not work in Android 28. The mechanism works fine on older/newer versions of Android. Test: Verified rendezvous on Android 28 and 29 Test: Added dlopen test Reviewed By: labath Differential Revision: https://reviews.llvm.org/D109797
64 lines
2.3 KiB
Python
64 lines
2.3 KiB
Python
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 TestCase(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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@skipIfRemote
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def test_load_after_attach(self):
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self.build()
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ctx = self.platformContext
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lib_name = ctx.shlib_prefix + 'lib_b.' + ctx.shlib_extension
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exe = self.getBuildArtifact("a.out")
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lib = self.getBuildArtifact(lib_name)
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# Spawn a new process.
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# use realpath to workaround llvm.org/pr48376
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# Pass path to solib for dlopen to properly locate the library.
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popen = self.spawnSubprocess(os.path.realpath(exe), args = [os.path.realpath(lib)])
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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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# Continue until first breakpoint.
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breakpoint1 = self.target().BreakpointCreateBySourceRegex(
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"// break here", lldb.SBFileSpec("main.cpp"))
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self.assertEqual(breakpoint1.GetNumResolvedLocations(), 1)
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stopped_threads = lldbutil.continue_to_breakpoint(self.process(), breakpoint1)
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self.assertEqual(len(stopped_threads), 1)
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# Check that image list does not contain liblib_b before dlopen.
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self.match(
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"image list",
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patterns = [lib_name],
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matching = False,
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msg = lib_name + " should not have been in image list")
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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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# Continue so that dlopen is called.
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breakpoint2 = self.target().BreakpointCreateBySourceRegex(
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"// break after dlopen", lldb.SBFileSpec("main.cpp"))
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self.assertEqual(breakpoint2.GetNumResolvedLocations(), 1)
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stopped_threads = lldbutil.continue_to_breakpoint(self.process(), breakpoint2)
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self.assertEqual(len(stopped_threads), 1)
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# Check that image list contains liblib_b after dlopen.
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self.match(
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"image list",
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patterns = [lib_name],
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matching = True,
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msg = lib_name + " missing in image list")
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