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