73 lines
2.5 KiB
Python
73 lines
2.5 KiB
Python
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"""
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Test that LLDB can launch a linux executable and then execs into the dynamic
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loader into this program again.
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"""
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import lldb
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import os
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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 TestLinux64ExecViaDynamicLoader(TestBase):
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NO_DEBUG_INFO_TESTCASE = True
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@skipIfXmlSupportMissing
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@skipIf(oslist=no_match(["linux"]))
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def test_with_svr4(self):
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self.runCmd("settings set plugin.process.gdb-remote.use-libraries-svr4 true")
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self._test()
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@skipIf(oslist=no_match(["linux"]))
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def test_without_svr4(self):
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self.runCmd("settings set plugin.process.gdb-remote.use-libraries-svr4 false")
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self._test()
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def _test(self):
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self.build()
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# Extracts path of the interpreter.
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exe = self.getBuildArtifact("a.out")
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spec = lldb.SBModuleSpec()
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spec.SetFileSpec(lldb.SBFileSpec(exe))
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interp_section = lldb.SBModule(spec).FindSection(".interp")
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if not interp_section:
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return
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section_data = interp_section.GetSectionData()
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error = lldb.SBError()
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dyld_path = section_data.GetString(error, 0)
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if error.Fail():
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return
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target = self.dbg.CreateTarget(exe)
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self.assertTrue(target, VALID_TARGET)
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# Set a breakpoint in the main function that will get hit after the
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# program exec's via the dynamic loader. The breakpoint will only get
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# hit if we can successfully read the shared library lists in the
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# DynamicLoaderPOSIXDYLD.cpp when we exec into the dynamic loader.
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breakpoint_main = target.BreakpointCreateBySourceRegex(
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"// Break here", lldb.SBFileSpec("main.cpp")
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)
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# Setup our launch info to supply the dynamic loader path to the
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# program so it gets two args:
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# - path to a.out
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# - path to dynamic loader
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launch_info = lldb.SBLaunchInfo([dyld_path])
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error = lldb.SBError()
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process = target.Launch(launch_info, error)
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self.assertSuccess(error)
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threads = lldbutil.get_stopped_threads(process, lldb.eStopReasonExec)
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self.assertEqual(len(threads), 1, "We got a thread stopped for exec.")
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process.Continue()
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# Stopped on main here.
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self.assertState(process.GetState(), lldb.eStateStopped)
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thread = process.GetSelectedThread()
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self.assertIn("main", thread.GetFrameAtIndex(0).GetDisplayFunctionName())
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