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https://github.com/Gericom/teak-llvm.git
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19474e1801
This module was originally intended to be imported by top-level scripts to be able to find the LLDB packages and third party libraries. Packages themselves shouldn't need to import it, because by the time it gets into the package, the top-level script should have already done this. Indeed, it was just adding the same values to sys.path multiple times, so this patch is essentially no functional change. To make sure it doesn't get re-introduced, we also delete the `use_lldb_suite` module from `lldbsuite/test`, although the original copy still remains in `lldb/test` llvm-svn: 251963
113 lines
4.2 KiB
Python
113 lines
4.2 KiB
Python
"""
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Test calling a function that throws an ObjC exception, make sure that it doesn't propagate the exception.
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"""
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from __future__ import print_function
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import lldb
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import lldbsuite.test.lldbutil as lldbutil
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from lldbsuite.test.lldbtest import *
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class ExprCommandWithThrowTestCase(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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def setUp(self):
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# Call super's setUp().
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TestBase.setUp(self)
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self.main_source = "call-throws.m"
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self.main_source_spec = lldb.SBFileSpec (self.main_source)
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@skipUnlessDarwin
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def test(self):
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"""Test calling a function that throws and ObjC exception."""
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self.build()
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self.call_function()
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def check_after_call (self):
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# Check that we are back where we were before:
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frame = self.thread.GetFrameAtIndex(0)
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self.assertTrue (self.orig_frame_pc == frame.GetPC(), "Restored the zeroth frame correctly")
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def call_function(self):
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"""Test calling function that throws."""
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exe_name = "a.out"
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exe = os.path.join(os.getcwd(), exe_name)
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target = self.dbg.CreateTarget(exe)
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self.assertTrue(target, VALID_TARGET)
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breakpoint = target.BreakpointCreateBySourceRegex('I am about to throw.',self.main_source_spec)
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self.assertTrue(breakpoint.GetNumLocations() > 0, VALID_BREAKPOINT)
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# Launch the process, and do not stop at the entry point.
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process = target.LaunchSimple (None, None, self.get_process_working_directory())
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self.assertTrue(process, PROCESS_IS_VALID)
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# Frame #0 should be at our breakpoint.
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threads = lldbutil.get_threads_stopped_at_breakpoint (process, breakpoint)
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self.assertTrue(len(threads) == 1)
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self.thread = threads[0]
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options = lldb.SBExpressionOptions()
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options.SetUnwindOnError(True)
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frame = self.thread.GetFrameAtIndex(0)
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# Store away the PC to check that the functions unwind to the right place after calls
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self.orig_frame_pc = frame.GetPC()
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value = frame.EvaluateExpression ("[my_class callMeIThrow]", options)
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self.assertTrue (value.IsValid())
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self.assertTrue (value.GetError().Success() == False)
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self.check_after_call()
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# Okay, now try with a breakpoint in the called code in the case where
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# we are ignoring breakpoint hits.
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handler_bkpt = target.BreakpointCreateBySourceRegex("I felt like it", self.main_source_spec)
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self.assertTrue (handler_bkpt.GetNumLocations() > 0)
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options.SetIgnoreBreakpoints(True)
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options.SetUnwindOnError(True)
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value = frame.EvaluateExpression ("[my_class callMeIThrow]", options)
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self.assertTrue (value.IsValid() and value.GetError().Success() == False)
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self.check_after_call()
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# Now set the ObjC language breakpoint and make sure that doesn't interfere with the call:
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exception_bkpt = target.BreakpointCreateForException (lldb.eLanguageTypeObjC, False, True)
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self.assertTrue(exception_bkpt.GetNumLocations() > 0)
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options.SetIgnoreBreakpoints(True)
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options.SetUnwindOnError(True)
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value = frame.EvaluateExpression ("[my_class callMeIThrow]", options)
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self.assertTrue (value.IsValid() and value.GetError().Success() == False)
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self.check_after_call()
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# Now turn off exception trapping, and call a function that catches the exceptions,
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# and make sure the function actually completes, and we get the right value:
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options.SetTrapExceptions(False)
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value = frame.EvaluateExpression ("[my_class iCatchMyself]", options)
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self.assertTrue (value.IsValid())
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self.assertTrue (value.GetError().Success() == True)
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self.assertTrue (value.GetValueAsUnsigned() == 57)
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self.check_after_call()
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options.SetTrapExceptions(True)
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# Now set this unwind on error to false, and make sure that we stop where the exception was thrown
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options.SetUnwindOnError(False)
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value = frame.EvaluateExpression ("[my_class callMeIThrow]", options)
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self.assertTrue (value.IsValid() and value.GetError().Success() == False)
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self.check_after_call()
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