lldb/test/API/functionalities/unwind/ehframe/TestEhFrameUnwind.py

   1 """
   2 Test that we can backtrace correctly from Non ABI functions on the stack
   3 """
   4
   5
   6 import lldb
   7 from lldbsuite.test.decorators import *
   8 from lldbsuite.test.lldbtest import *
   9 from lldbsuite.test import lldbutil
  10
  11
  12 class EHFrameBasedUnwind(TestBase):
  13     @skipUnlessPlatform(["linux"])
  14     @skipIf(archs=["aarch64", "arm", "i386", "i686"])
  15     def test(self):
  16         """Test that we can backtrace correctly from Non ABI  functions on the stack"""
  17         self.build()
  18         self.setTearDownCleanup()
  19
  20         exe = self.getBuildArtifact("a.out")
  21         target = self.dbg.CreateTarget(exe)
  22
  23         self.assertTrue(target, VALID_TARGET)
  24
  25         lldbutil.run_break_set_by_symbol(self, "func")
  26
  27         process = target.LaunchSimple(
  28             ["abc", "xyz"], None, self.get_process_working_directory()
  29         )
  30
  31         if not process:
  32             self.fail("SBTarget.Launch() failed")
  33
  34         if process.GetState() != lldb.eStateStopped:
  35             self.fail(
  36                 "Process should be in the 'stopped' state, "
  37                 "instead the actual state is: '%s'"
  38                 % lldbutil.state_type_to_str(process.GetState())
  39             )
  40
  41         stacktraces = lldbutil.print_stacktraces(process, string_buffer=True)
  42         self.expect(stacktraces, exe=False, substrs=["(int)argc=3"])
  43
  44         self.runCmd("thread step-inst")
  45
  46         stacktraces = lldbutil.print_stacktraces(process, string_buffer=True)
  47         self.expect(stacktraces, exe=False, substrs=["(int)argc=3"])