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Update the test scenario for find_global_variables() to now start the inferior process
before issuing API calls to find the global variable and to get its value. rdar://problem/9700873 has been updated to reflect the latest status. The dwarf case now does not seg fault if the inferior is not started; instead, for dwarf case, the value retrieved from the global variable is None. llvm-svn: 134909
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@ -938,7 +938,7 @@ class TestBase(unittest2.TestCase):
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# Misc. helper methods for debugging test execution
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# =================================================
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def DebugSBValue(self, frame, val):
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def DebugSBValue(self, val):
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"""Debug print a SBValue object, if traceAlways is True."""
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from lldbutil import value_type_to_str
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@ -950,11 +950,11 @@ class TestBase(unittest2.TestCase):
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err.write('\t' + "TypeName -> " + val.GetTypeName() + '\n')
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err.write('\t' + "ByteSize -> " + str(val.GetByteSize()) + '\n')
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err.write('\t' + "NumChildren -> " + str(val.GetNumChildren()) + '\n')
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err.write('\t' + "Value -> " + str(val.GetValue(frame)) + '\n')
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err.write('\t' + "Value -> " + str(val.GetValue()) + '\n')
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err.write('\t' + "ValueType -> " + value_type_to_str(val.GetValueType()) + '\n')
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err.write('\t' + "Summary -> " + str(val.GetSummary(frame)) + '\n')
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err.write('\t' + "Summary -> " + str(val.GetSummary()) + '\n')
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err.write('\t' + "IsPointerType -> " + str(val.TypeIsPointerType()) + '\n')
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err.write('\t' + "Location -> " + val.GetLocation(frame) + '\n')
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err.write('\t' + "Location -> " + val.GetLocation() + '\n')
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def DebugPExpect(self, child):
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"""Debug the spwaned pexpect object."""
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@ -22,7 +22,12 @@ class TargetAPITestCase(TestBase):
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self.find_global_variables('a.out')
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#rdar://problem/9700873
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@unittest2.skip("segmentation fault -- skipping")
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# Find global variable value fails for dwarf if inferior not started
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# (Was CrashTracer: [USER] 1 crash in Python at _lldb.so: lldb_private::MemoryCache::Read + 94)
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#
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# It does not segfaults now. But for dwarf, the variable value is None if
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# the inferior process does not exist yet. The radar has been updated.
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#@unittest232.skip("segmentation fault -- skipping")
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@python_api_test
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def test_find_global_variables_with_dwarf(self):
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"""Exercise SBTarget.FindGlobalVariables() API."""
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@ -102,9 +107,24 @@ class TargetAPITestCase(TestBase):
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target = self.dbg.CreateTarget(exe)
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self.assertTrue(target, VALID_TARGET)
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#rdar://problem/9700873
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# Find global variable value fails for dwarf if inferior not started
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# (Was CrashTracer: [USER] 1 crash in Python at _lldb.so: lldb_private::MemoryCache::Read + 94)
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#
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# Remove the lines to create a breakpoint and to start the inferior
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# which are workarounds for the dwarf case.
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breakpoint = target.BreakpointCreateByLocation('main.c', self.line1)
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self.assertTrue(breakpoint, 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, os.getcwd())
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self.assertTrue(process, PROCESS_IS_VALID)
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value_list = target.FindGlobalVariables('my_global_var_of_char_type', 3)
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self.assertTrue(value_list.GetSize() == 1)
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my_global_var = value_list.GetValueAtIndex(0)
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self.DebugSBValue(my_global_var)
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self.assertTrue(my_global_var)
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self.expect(my_global_var.GetName(), exe=False,
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startstr = "my_global_var_of_char_type")
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