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
173 lines
8.2 KiB
Python
173 lines
8.2 KiB
Python
"""Test stepping through ObjC method dispatch in various forms."""
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from __future__ import print_function
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import os, time
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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 TestObjCStepping(TestBase):
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def getCategories (self):
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return ['basic_process']
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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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# Find the line numbers that we will step to in main:
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self.main_source = "stepping-tests.m"
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self.source_randomMethod_line = line_number (self.main_source, '// Source randomMethod start line.')
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self.sourceBase_randomMethod_line = line_number (self.main_source, '// SourceBase randomMethod start line.')
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self.source_returnsStruct_start_line = line_number (self.main_source, '// Source returnsStruct start line.')
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self.sourceBase_returnsStruct_start_line = line_number (self.main_source, '// SourceBase returnsStruct start line.')
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self.stepped_past_nil_line = line_number (self.main_source, '// Step over nil should stop here.')
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@skipUnlessDarwin
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@add_test_categories(['pyapi'])
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def test_with_python_api(self):
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"""Test stepping through ObjC method dispatch in various forms."""
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self.build()
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exe = os.path.join(os.getcwd(), "a.out")
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target = self.dbg.CreateTarget(exe)
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self.assertTrue(target, VALID_TARGET)
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self.main_source_spec = lldb.SBFileSpec (self.main_source)
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breakpoints_to_disable = []
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break1 = target.BreakpointCreateBySourceRegex ("// Set first breakpoint here.", self.main_source_spec)
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self.assertTrue(break1, VALID_BREAKPOINT)
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breakpoints_to_disable.append (break1)
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break2 = target.BreakpointCreateBySourceRegex ("// Set second breakpoint here.", self.main_source_spec)
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self.assertTrue(break2, VALID_BREAKPOINT)
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breakpoints_to_disable.append (break2)
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break3 = target.BreakpointCreateBySourceRegex ('// Set third breakpoint here.', self.main_source_spec)
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self.assertTrue(break3, VALID_BREAKPOINT)
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breakpoints_to_disable.append (break3)
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break4 = target.BreakpointCreateBySourceRegex ('// Set fourth breakpoint here.', self.main_source_spec)
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self.assertTrue(break4, VALID_BREAKPOINT)
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breakpoints_to_disable.append (break4)
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break5 = target.BreakpointCreateBySourceRegex ('// Set fifth breakpoint here.', self.main_source_spec)
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self.assertTrue(break5, VALID_BREAKPOINT)
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breakpoints_to_disable.append (break5)
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break_returnStruct_call_super = target.BreakpointCreateBySourceRegex ('// Source returnsStruct call line.', self.main_source_spec)
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self.assertTrue(break_returnStruct_call_super, VALID_BREAKPOINT)
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breakpoints_to_disable.append (break_returnStruct_call_super)
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break_step_nil = target.BreakpointCreateBySourceRegex ('// Set nil step breakpoint here.', self.main_source_spec)
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self.assertTrue(break_step_nil, VALID_BREAKPOINT)
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# Now launch the process, and do not stop at 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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# The stop reason of the thread should be breakpoint.
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threads = lldbutil.get_threads_stopped_at_breakpoint (process, break1)
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if len(threads) != 1:
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self.fail ("Failed to stop at breakpoint 1.")
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thread = threads[0]
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mySource = thread.GetFrameAtIndex(0).FindVariable("mySource")
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self.assertTrue(mySource, "Found mySource local variable.")
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mySource_isa = mySource.GetChildMemberWithName ("isa")
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self.assertTrue(mySource_isa, "Found mySource->isa local variable.")
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className = mySource_isa.GetSummary ()
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if self.TraceOn():
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print(mySource_isa)
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# Lets delete mySource so we can check that after stepping a child variable
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# with no parent persists and is useful.
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del (mySource)
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# Now step in, that should leave us in the Source randomMethod:
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thread.StepInto()
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line_number = thread.GetFrameAtIndex(0).GetLineEntry().GetLine()
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self.assertTrue (line_number == self.source_randomMethod_line, "Stepped into Source randomMethod.")
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# Now step in again, through the super call, and that should leave us in the SourceBase randomMethod:
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thread.StepInto()
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line_number = thread.GetFrameAtIndex(0).GetLineEntry().GetLine()
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self.assertTrue (line_number == self.sourceBase_randomMethod_line, "Stepped through super into SourceBase randomMethod.")
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threads = lldbutil.continue_to_breakpoint (process, break2)
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self.assertTrue (len(threads) == 1, "Continued to second breakpoint in main.")
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# Again, step in twice gets us to a stret method and a stret super call:
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thread = threads[0]
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thread.StepInto()
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line_number = thread.GetFrameAtIndex(0).GetLineEntry().GetLine()
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self.assertTrue (line_number == self.source_returnsStruct_start_line, "Stepped into Source returnsStruct.")
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threads = lldbutil.continue_to_breakpoint (process, break_returnStruct_call_super)
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self.assertTrue (len(threads) == 1, "Stepped to the call super line in Source returnsStruct.")
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thread = threads[0]
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thread.StepInto()
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line_number = thread.GetFrameAtIndex(0).GetLineEntry().GetLine()
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self.assertTrue (line_number == self.sourceBase_returnsStruct_start_line, "Stepped through super into SourceBase returnsStruct.")
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# Cool now continue to get past the call that initializes the Observer, and then do our steps in again to see that
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# we can find our way when we're stepping through a KVO swizzled object.
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threads = lldbutil.continue_to_breakpoint (process, break3)
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self.assertTrue (len(threads) == 1, "Continued to third breakpoint in main, our object should now be swizzled.")
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newClassName = mySource_isa.GetSummary ()
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if self.TraceOn():
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print(mySource_isa)
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self.assertTrue (newClassName != className, "The isa did indeed change, swizzled!")
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# Now step in, that should leave us in the Source randomMethod:
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thread = threads[0]
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thread.StepInto()
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line_number = thread.GetFrameAtIndex(0).GetLineEntry().GetLine()
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self.assertTrue (line_number == self.source_randomMethod_line, "Stepped into Source randomMethod in swizzled object.")
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# Now step in again, through the super call, and that should leave us in the SourceBase randomMethod:
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thread.StepInto()
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line_number = thread.GetFrameAtIndex(0).GetLineEntry().GetLine()
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self.assertTrue (line_number == self.sourceBase_randomMethod_line, "Stepped through super into SourceBase randomMethod in swizzled object.")
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threads = lldbutil.continue_to_breakpoint (process, break4)
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self.assertTrue (len(threads) == 1, "Continued to fourth breakpoint in main.")
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thread = threads[0]
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# Again, step in twice gets us to a stret method and a stret super call:
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thread.StepInto()
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line_number = thread.GetFrameAtIndex(0).GetLineEntry().GetLine()
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self.assertTrue (line_number == self.source_returnsStruct_start_line, "Stepped into Source returnsStruct in swizzled object.")
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threads = lldbutil.continue_to_breakpoint(process, break_returnStruct_call_super)
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self.assertTrue (len(threads) == 1, "Stepped to the call super line in Source returnsStruct - second time.")
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thread = threads[0]
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thread.StepInto()
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line_number = thread.GetFrameAtIndex(0).GetLineEntry().GetLine()
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self.assertTrue (line_number == self.sourceBase_returnsStruct_start_line, "Stepped through super into SourceBase returnsStruct in swizzled object.")
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for bkpt in breakpoints_to_disable:
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bkpt.SetEnabled(False)
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threads = lldbutil.continue_to_breakpoint (process, break_step_nil)
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self.assertTrue (len(threads) == 1, "Continued to step nil breakpoint.")
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thread.StepInto()
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line_number = thread.GetFrameAtIndex(0).GetLineEntry().GetLine()
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self.assertTrue (line_number == self.stepped_past_nil_line, "Step in over dispatch to nil stepped over.")
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