lldb/test/API/functionalities/dyld-launch-linux/TestDyldLaunchLinux.py

   1 """
   2 Test that LLDB can launch a linux executable through the dynamic loader and still hit a breakpoint.
   3 """
   4
   5 import lldb
   6 import os
   7
   8 from lldbsuite.test.decorators import *
   9 from lldbsuite.test.lldbtest import *
  10 from lldbsuite.test import lldbutil
  11
  12
  13 class TestLinux64LaunchingViaDynamicLoader(TestBase):
  14     @skipIf(oslist=no_match(["linux"]))
  15     @no_debug_info_test
  16     @skipIf(oslist=["linux"], archs=["arm"])
  17     def test(self):
  18         self.build()
  19
  20         # Extracts path of the interpreter.
  21         spec = lldb.SBModuleSpec()
  22         spec.SetFileSpec(lldb.SBFileSpec(self.getBuildArtifact("a.out")))
  23         interp_section = lldb.SBModule(spec).FindSection(".interp")
  24         if not interp_section:
  25             return
  26         section_data = interp_section.GetSectionData()
  27         error = lldb.SBError()
  28         exe = section_data.GetString(error, 0)
  29         if error.Fail():
  30             return
  31
  32         target = self.dbg.CreateTarget(exe)
  33         self.assertTrue(target, VALID_TARGET)
  34
  35         # Set breakpoints both on shared library function as well as on
  36         # main. Both of them will be pending breakpoints.
  37         breakpoint_main = target.BreakpointCreateBySourceRegex(
  38             "// Break here", lldb.SBFileSpec("main.cpp")
  39         )
  40         breakpoint_shared_library = target.BreakpointCreateBySourceRegex(
  41             "get_signal_crash", lldb.SBFileSpec("signal_file.cpp")
  42         )
  43         inferior_exe_path = lldbutil.install_to_target(
  44             self, self.getBuildArtifact("a.out")
  45         )
  46         lldbutil.install_to_target(self, self.getBuildArtifact("libsignal_file.so"))
  47
  48         launch_info = lldb.SBLaunchInfo(
  49             [
  50                 "--library-path",
  51                 self.get_process_working_directory(),
  52                 inferior_exe_path,
  53             ]
  54         )
  55         launch_info.SetWorkingDirectory(self.get_process_working_directory())
  56         error = lldb.SBError()
  57         process = target.Launch(launch_info, error)
  58         self.assertSuccess(error)
  59
  60         # Stopped on main here.
  61         self.assertState(process.GetState(), lldb.eStateStopped)
  62         thread = process.GetSelectedThread()
  63         self.assertIn("main", thread.GetFrameAtIndex(0).GetDisplayFunctionName())
  64         process.Continue()
  65
  66         # Stopped on get_signal_crash function here.
  67         self.assertState(process.GetState(), lldb.eStateStopped)
  68         self.assertIn(
  69             "get_signal_crash", thread.GetFrameAtIndex(0).GetDisplayFunctionName()
  70         )
  71         process.Continue()
  72
  73         # Stopped because of generated signal.
  74         self.assertState(process.GetState(), lldb.eStateStopped)
  75         self.assertIn("raise", lldbutil.get_function_names(thread))