d7fb086668
Some months ago, the LookupInfo constructor logic was refactored to not depend on language specific logic, and use languages plugins instead. In this refactor, when the language type is unknown, a single LookupInfo object will handle multiple languages. This doesn't work well, as multiple languages might want to configure the LookupInfo object in different ways. For example, different languages might want to set the m_lookup_name differently from each other, but the previous implementation would pick the first name a language provided, and effectively ignored every other language. Other fields of the LookupInfo object are also configured in incompatible ways. This approach doesn't seem to be a problem upstream, since only the C++/Objective-C language plugins are available, but it broke downstream on the Swift fork, as adding Swift to the list of default languages when the language type is unknown breaks C++ tests. This patch makes it so instead of building a single LookupInfo object for multiple languages, one LookupInfo object is built per language instead. rdar://159531216
546 lines
20 KiB
Python
546 lines
20 KiB
Python
"""
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Test breakpoint serialization.
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"""
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import os
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import json
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import lldb
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from lldbsuite.test.decorators import *
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from lldbsuite.test.lldbtest import *
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from lldbsuite.test import lldbutil
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class BreakpointSerialization(TestBase):
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NO_DEBUG_INFO_TESTCASE = True
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@add_test_categories(["pyapi"])
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def test_resolvers(self):
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"""Use Python APIs to test that we serialize resolvers."""
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self.build()
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self.setup_targets_and_cleanup()
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self.do_check_resolvers()
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def test_filters(self):
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"""Use Python APIs to test that we serialize search filters correctly."""
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self.build()
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self.setup_targets_and_cleanup()
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self.do_check_filters()
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def test_options(self):
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"""Use Python APIs to test that we serialize breakpoint options correctly."""
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self.build()
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self.setup_targets_and_cleanup()
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self.do_check_options()
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def test_appending(self):
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"""Use Python APIs to test that we serialize breakpoint options correctly."""
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self.build()
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self.setup_targets_and_cleanup()
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self.do_check_appending()
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def test_name_filters(self):
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"""Use python APIs to test that reading in by name works correctly."""
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self.build()
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self.setup_targets_and_cleanup()
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self.do_check_names()
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def test_scripted_extra_args(self):
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self.build()
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self.setup_targets_and_cleanup()
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self.do_check_extra_args()
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def test_resolver_serialization(self):
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"""Test that breakpoint resolvers contain the expected information"""
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self.build()
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self.setup_targets_and_cleanup()
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exe_path = self.getBuildArtifact("a.out")
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exe_module = self.orig_target.module["a.out"]
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self.assertTrue(
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exe_module.IsValid(), "Failed to find the executable module in target"
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)
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sym_ctx_list = exe_module.FindFunctions("main")
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self.assertEqual(sym_ctx_list.GetSize(), 1, "Unable to find function 'main'")
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sym_ctx = sym_ctx_list.GetContextAtIndex(0)
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self.assertTrue(
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sym_ctx.IsValid(), "SBSymbolContext representing function 'main' is invalid"
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)
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main_func = sym_ctx.GetFunction()
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self.assertTrue(
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main_func.IsValid(), "SBFunction representing 'main' is invalid"
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)
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main_addr = main_func.GetStartAddress()
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bkpt = self.orig_target.BreakpointCreateBySBAddress(main_addr)
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self.assertTrue(
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bkpt.IsValid(), "Could not place breakpoint on 'main' by address"
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)
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stream = lldb.SBStream()
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sd = bkpt.SerializeToStructuredData()
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sd.GetAsJSON(stream)
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serialized_data = json.loads(stream.GetData())
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self.assertIn(
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exe_path,
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serialized_data["Breakpoint"]["BKPTResolver"]["Options"]["ModuleName"],
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)
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def test_structured_data_serialization(self):
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target = self.dbg.GetDummyTarget()
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self.assertTrue(target.IsValid(), VALID_TARGET)
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interpreter = self.dbg.GetCommandInterpreter()
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result = lldb.SBCommandReturnObject()
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interpreter.HandleCommand("br set -f foo -l 42", result)
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result = lldb.SBCommandReturnObject()
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interpreter.HandleCommand("br set -c 'argc == 1' -n main", result)
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bkp1 = target.GetBreakpointAtIndex(0)
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self.assertTrue(bkp1.IsValid(), VALID_BREAKPOINT)
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stream = lldb.SBStream()
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sd = bkp1.SerializeToStructuredData()
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sd.GetAsJSON(stream)
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serialized_data = json.loads(stream.GetData())
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self.assertEqual(
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serialized_data["Breakpoint"]["BKPTResolver"]["Options"]["FileName"], "foo"
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)
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self.assertEqual(
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serialized_data["Breakpoint"]["BKPTResolver"]["Options"]["LineNumber"], 42
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)
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bkp2 = target.GetBreakpointAtIndex(1)
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self.assertTrue(bkp2.IsValid(), VALID_BREAKPOINT)
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stream = lldb.SBStream()
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sd = bkp2.SerializeToStructuredData()
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sd.GetAsJSON(stream)
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serialized_data = json.loads(stream.GetData())
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self.assertIn(
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"main",
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serialized_data["Breakpoint"]["BKPTResolver"]["Options"]["SymbolNames"],
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)
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self.assertEqual(
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serialized_data["Breakpoint"]["BKPTOptions"]["ConditionText"], "argc == 1"
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)
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invalid_bkp = lldb.SBBreakpoint()
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self.assertFalse(invalid_bkp.IsValid(), "Breakpoint should not be valid.")
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stream = lldb.SBStream()
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sd = invalid_bkp.SerializeToStructuredData()
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sd.GetAsJSON(stream)
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self.assertFalse(
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stream.GetData(), "Invalid breakpoint should have an empty structured data"
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)
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def setup_targets_and_cleanup(self):
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def cleanup():
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self.RemoveTempFile(self.bkpts_file_path)
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if self.orig_target.IsValid():
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self.dbg.DeleteTarget(self.orig_target)
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self.dbg.DeleteTarget(self.copy_target)
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self.addTearDownHook(cleanup)
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self.RemoveTempFile(self.bkpts_file_path)
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exe = self.getBuildArtifact("a.out")
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# Create the targets we are making breakpoints in and copying them to:
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self.orig_target = self.dbg.CreateTarget(exe)
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self.assertTrue(self.orig_target, VALID_TARGET)
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self.copy_target = self.dbg.CreateTarget(exe)
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self.assertTrue(self.copy_target, VALID_TARGET)
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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.bkpts_file_path = self.getBuildArtifact("breakpoints.json")
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self.bkpts_file_spec = lldb.SBFileSpec(self.bkpts_file_path)
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def check_equivalence(self, source_bps, do_write=True):
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error = lldb.SBError()
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if do_write:
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error = self.orig_target.BreakpointsWriteToFile(
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self.bkpts_file_spec, source_bps
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)
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self.assertSuccess(error, "Failed writing breakpoints to file")
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copy_bps = lldb.SBBreakpointList(self.copy_target)
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error = self.copy_target.BreakpointsCreateFromFile(
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self.bkpts_file_spec, copy_bps
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)
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self.assertSuccess(error, "Failed reading breakpoints from file")
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num_source_bps = source_bps.GetSize()
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num_copy_bps = copy_bps.GetSize()
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self.assertEqual(
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num_source_bps,
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num_copy_bps,
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"Didn't get same number of input and output breakpoints - orig: %d copy: %d"
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% (num_source_bps, num_copy_bps),
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)
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for i in range(0, num_source_bps):
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source_bp = source_bps.GetBreakpointAtIndex(i)
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source_desc = lldb.SBStream()
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source_bp.GetDescription(source_desc, False)
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source_text = source_desc.GetData()
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# I am assuming here that the breakpoints will get written out in breakpoint ID order, and
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# read back in ditto. That is true right now, and I can't see any reason to do it differently
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# but if we do we can go to writing the breakpoints one by one, or sniffing the descriptions to
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# see which one is which.
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copy_id = source_bp.GetID()
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copy_bp = copy_bps.FindBreakpointByID(copy_id)
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self.assertTrue(
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copy_bp.IsValid(), "Could not find copy breakpoint %d." % (copy_id)
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)
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copy_desc = lldb.SBStream()
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copy_bp.GetDescription(copy_desc, False)
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copy_text = copy_desc.GetData()
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# These two should be identical.
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self.trace("Source text for %d is %s." % (i, source_text))
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self.assertEqual(
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source_text,
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copy_text,
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"Source and dest breakpoints are not identical: \nsource: %s\ndest: %s"
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% (source_text, copy_text),
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)
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self.assertEqual(
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source_bp.GetNumLocations(),
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copy_bp.GetNumLocations(),
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"Source and dest num locations are not the same",
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)
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def do_check_resolvers(self):
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"""Use Python APIs to check serialization of breakpoint resolvers"""
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empty_module_list = lldb.SBFileSpecList()
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empty_cu_list = lldb.SBFileSpecList()
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blubby_file_spec = lldb.SBFileSpec(
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os.path.join(self.getSourceDir(), "blubby.c")
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)
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# It isn't actually important for these purposes that these breakpoint
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# actually have locations.
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source_bps = lldb.SBBreakpointList(self.orig_target)
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source_bps.Append(self.orig_target.BreakpointCreateByLocation("blubby.c", 666))
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# Make sure we do one breakpoint right:
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self.check_equivalence(source_bps)
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source_bps.Clear()
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source_bps.Append(
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self.orig_target.BreakpointCreateByName(
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"blubby", lldb.eFunctionNameTypeAuto, empty_module_list, empty_cu_list
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)
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)
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source_bps.Append(
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self.orig_target.BreakpointCreateByName(
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"blubby", lldb.eFunctionNameTypeFull, empty_module_list, empty_cu_list
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)
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)
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source_bps.Append(
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self.orig_target.BreakpointCreateBySourceRegex(
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"dont really care", blubby_file_spec
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)
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)
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# And some number greater than one:
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self.check_equivalence(source_bps)
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def do_check_filters(self):
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"""Use Python APIs to check serialization of breakpoint filters."""
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module_list = lldb.SBFileSpecList()
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module_list.Append(lldb.SBFileSpec("SomeBinary"))
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module_list.Append(lldb.SBFileSpec("SomeOtherBinary"))
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cu_list = lldb.SBFileSpecList()
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cu_list.Append(lldb.SBFileSpec("SomeCU.c"))
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cu_list.Append(lldb.SBFileSpec("AnotherCU.c"))
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cu_list.Append(lldb.SBFileSpec("ThirdCU.c"))
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blubby_file_spec = lldb.SBFileSpec(
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os.path.join(self.getSourceDir(), "blubby.c")
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)
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# It isn't actually important for these purposes that these breakpoint
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# actually have locations.
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source_bps = lldb.SBBreakpointList(self.orig_target)
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bkpt = self.orig_target.BreakpointCreateByLocation(
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blubby_file_spec, 666, 0, module_list
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)
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source_bps.Append(bkpt)
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# Make sure we do one right:
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self.check_equivalence(source_bps)
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source_bps.Clear()
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bkpt = self.orig_target.BreakpointCreateByName(
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"blubby", lldb.eFunctionNameTypeAuto, module_list, cu_list
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)
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source_bps.Append(bkpt)
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bkpt = self.orig_target.BreakpointCreateByName(
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"blubby", lldb.eFunctionNameTypeFull, module_list, cu_list
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)
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source_bps.Append(bkpt)
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bkpt = self.orig_target.BreakpointCreateBySourceRegex(
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"dont really care", blubby_file_spec
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)
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source_bps.Append(bkpt)
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# And some number greater than one:
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self.check_equivalence(source_bps)
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def do_check_options(self):
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"""Use Python APIs to check serialization of breakpoint options."""
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empty_module_list = lldb.SBFileSpecList()
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empty_cu_list = lldb.SBFileSpecList()
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blubby_file_spec = lldb.SBFileSpec(
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os.path.join(self.getSourceDir(), "blubby.c")
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)
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# It isn't actually important for these purposes that these breakpoint
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# actually have locations.
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source_bps = lldb.SBBreakpointList(self.orig_target)
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bkpt = self.orig_target.BreakpointCreateByLocation(
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lldb.SBFileSpec("blubby.c"), 666, 333, 0, lldb.SBFileSpecList()
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)
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bkpt.SetEnabled(False)
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bkpt.SetOneShot(True)
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bkpt.SetThreadID(10)
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source_bps.Append(bkpt)
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# Make sure we get one right:
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self.check_equivalence(source_bps)
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source_bps.Clear()
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bkpt = self.orig_target.BreakpointCreateByName(
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"blubby", lldb.eFunctionNameTypeAuto, empty_module_list, empty_cu_list
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)
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bkpt.SetIgnoreCount(10)
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bkpt.SetThreadName("grubby")
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source_bps.Append(bkpt)
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bkpt = self.orig_target.BreakpointCreateByName(
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"blubby", lldb.eFunctionNameTypeAuto, empty_module_list, empty_cu_list
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)
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bkpt.SetCondition("gonna remove this")
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bkpt.SetCondition("")
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source_bps.Append(bkpt)
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bkpt = self.orig_target.BreakpointCreateByName(
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"blubby", lldb.eFunctionNameTypeFull, empty_module_list, empty_cu_list
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)
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bkpt.SetCondition("something != something_else")
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bkpt.SetQueueName("grubby")
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bkpt.AddName("FirstName")
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bkpt.AddName("SecondName")
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bkpt.SetScriptCallbackBody(
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'\tprint("I am a function that prints.")\n\tprint("I don\'t do anything else")\n'
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)
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source_bps.Append(bkpt)
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bkpt = self.orig_target.BreakpointCreateBySourceRegex(
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"dont really care", blubby_file_spec
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)
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cmd_list = lldb.SBStringList()
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cmd_list.AppendString("frame var")
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cmd_list.AppendString("thread backtrace")
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bkpt.SetCommandLineCommands(cmd_list)
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source_bps.Append(bkpt)
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self.check_equivalence(source_bps)
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def do_check_appending(self):
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"""Use Python APIs to check appending to already serialized options."""
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empty_module_list = lldb.SBFileSpecList()
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empty_cu_list = lldb.SBFileSpecList()
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blubby_file_spec = lldb.SBFileSpec(
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os.path.join(self.getSourceDir(), "blubby.c")
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)
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# It isn't actually important for these purposes that these breakpoint
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# actually have locations.
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all_bps = lldb.SBBreakpointList(self.orig_target)
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source_bps = lldb.SBBreakpointList(self.orig_target)
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bkpt = self.orig_target.BreakpointCreateByLocation(
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lldb.SBFileSpec("blubby.c"), 666, 333, 0, lldb.SBFileSpecList()
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)
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bkpt.SetEnabled(False)
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bkpt.SetOneShot(True)
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bkpt.SetThreadID(10)
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source_bps.Append(bkpt)
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all_bps.Append(bkpt)
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error = lldb.SBError()
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error = self.orig_target.BreakpointsWriteToFile(
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self.bkpts_file_spec, source_bps
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)
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self.assertSuccess(error, "Failed writing breakpoints to file")
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source_bps.Clear()
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bkpt = self.orig_target.BreakpointCreateByName(
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"main", lldb.eFunctionNameTypeAuto, empty_module_list, empty_cu_list
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)
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bkpt.SetIgnoreCount(10)
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bkpt.SetThreadName("grubby")
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source_bps.Append(bkpt)
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all_bps.Append(bkpt)
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bkpt = self.orig_target.BreakpointCreateByName(
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"main", lldb.eFunctionNameTypeFull, empty_module_list, empty_cu_list
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)
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bkpt.SetCondition("something != something_else")
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bkpt.SetQueueName("grubby")
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bkpt.AddName("FirstName")
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bkpt.AddName("SecondName")
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source_bps.Append(bkpt)
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all_bps.Append(bkpt)
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error = self.orig_target.BreakpointsWriteToFile(
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self.bkpts_file_spec, source_bps, True
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)
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self.assertSuccess(error, "Failed appending breakpoints to file")
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self.check_equivalence(all_bps)
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def do_check_names(self):
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bkpt = self.orig_target.BreakpointCreateByLocation(
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lldb.SBFileSpec("blubby.c"), 666, 333, 0, lldb.SBFileSpecList()
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)
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good_bkpt_name = "GoodBreakpoint"
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write_bps = lldb.SBBreakpointList(self.orig_target)
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bkpt.AddName(good_bkpt_name)
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write_bps.Append(bkpt)
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error = lldb.SBError()
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error = self.orig_target.BreakpointsWriteToFile(self.bkpts_file_spec, write_bps)
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self.assertSuccess(error, "Failed writing breakpoints to file")
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copy_bps = lldb.SBBreakpointList(self.copy_target)
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names_list = lldb.SBStringList()
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names_list.AppendString("NoSuchName")
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error = self.copy_target.BreakpointsCreateFromFile(
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self.bkpts_file_spec, names_list, copy_bps
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)
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self.assertSuccess(error, "Failed reading breakpoints from file")
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self.assertEqual(
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copy_bps.GetSize(), 0, "Found breakpoints with a nonexistent name."
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)
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names_list.AppendString(good_bkpt_name)
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error = self.copy_target.BreakpointsCreateFromFile(
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self.bkpts_file_spec, names_list, copy_bps
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)
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self.assertSuccess(error, "Failed reading breakpoints from file")
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self.assertEqual(copy_bps.GetSize(), 1, "Found the matching breakpoint.")
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def do_check_extra_args(self):
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import side_effect
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interp = self.dbg.GetCommandInterpreter()
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error = lldb.SBError()
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script_name = os.path.join(self.getSourceDir(), "resolver.py")
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command = "command script import " + script_name
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result = lldb.SBCommandReturnObject()
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interp.HandleCommand(command, result)
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self.assertTrue(
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result.Succeeded(), "com scr imp failed: %s" % (result.GetError())
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)
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# First make sure a scripted breakpoint with no args works:
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bkpt = self.orig_target.BreakpointCreateFromScript(
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"resolver.Resolver",
|
|
lldb.SBStructuredData(),
|
|
lldb.SBFileSpecList(),
|
|
lldb.SBFileSpecList(),
|
|
)
|
|
self.assertTrue(bkpt.IsValid(), "Bkpt is valid")
|
|
write_bps = lldb.SBBreakpointList(self.orig_target)
|
|
|
|
error = self.orig_target.BreakpointsWriteToFile(self.bkpts_file_spec, write_bps)
|
|
self.assertSuccess(error, "Failed writing breakpoints")
|
|
|
|
side_effect.g_extra_args = None
|
|
copy_bps = lldb.SBBreakpointList(self.copy_target)
|
|
error = self.copy_target.BreakpointsCreateFromFile(
|
|
self.bkpts_file_spec, copy_bps
|
|
)
|
|
self.assertSuccess(error, "Failed reading breakpoints")
|
|
|
|
self.assertEqual(copy_bps.GetSize(), 1, "Got one breakpoint from file.")
|
|
no_keys = lldb.SBStringList()
|
|
side_effect.g_extra_args.GetKeys(no_keys)
|
|
self.assertEqual(no_keys.GetSize(), 0, "Should have no keys")
|
|
|
|
self.orig_target.DeleteAllBreakpoints()
|
|
self.copy_target.DeleteAllBreakpoints()
|
|
|
|
# Now try one with extra args:
|
|
|
|
extra_args = lldb.SBStructuredData()
|
|
stream = lldb.SBStream()
|
|
stream.Print('{"first_arg" : "first_value", "second_arg" : "second_value"}')
|
|
extra_args.SetFromJSON(stream)
|
|
self.assertTrue(extra_args.IsValid(), "SBStructuredData is valid.")
|
|
|
|
bkpt = self.orig_target.BreakpointCreateFromScript(
|
|
"resolver.Resolver",
|
|
extra_args,
|
|
lldb.SBFileSpecList(),
|
|
lldb.SBFileSpecList(),
|
|
)
|
|
self.assertTrue(bkpt.IsValid(), "Bkpt is valid")
|
|
write_bps = lldb.SBBreakpointList(self.orig_target)
|
|
|
|
error = self.orig_target.BreakpointsWriteToFile(self.bkpts_file_spec, write_bps)
|
|
self.assertSuccess(error, "Failed writing breakpoints")
|
|
|
|
orig_extra_args = side_effect.g_extra_args
|
|
self.assertTrue(orig_extra_args.IsValid(), "Extra args originally valid")
|
|
|
|
orig_keys = lldb.SBStringList()
|
|
orig_extra_args.GetKeys(orig_keys)
|
|
self.assertEqual(2, orig_keys.GetSize(), "Should have two keys")
|
|
|
|
side_effect.g_extra_args = None
|
|
|
|
copy_bps = lldb.SBBreakpointList(self.copy_target)
|
|
error = self.copy_target.BreakpointsCreateFromFile(
|
|
self.bkpts_file_spec, copy_bps
|
|
)
|
|
self.assertSuccess(error, "Failed reading breakpoints")
|
|
|
|
self.assertEqual(copy_bps.GetSize(), 1, "Got one breakpoint from file.")
|
|
|
|
copy_extra_args = side_effect.g_extra_args
|
|
copy_keys = lldb.SBStringList()
|
|
copy_extra_args.GetKeys(copy_keys)
|
|
self.assertEqual(2, copy_keys.GetSize(), "Copy should have two keys")
|
|
|
|
for idx in range(0, orig_keys.GetSize()):
|
|
key = orig_keys.GetStringAtIndex(idx)
|
|
copy_value = copy_extra_args.GetValueForKey(key).GetStringValue(100)
|
|
|
|
if key == "first_arg":
|
|
self.assertEqual(copy_value, "first_value")
|
|
elif key == "second_arg":
|
|
self.assertEqual(copy_value, "second_value")
|
|
else:
|
|
self.Fail("Unknown key: %s" % (key))
|