forked from OSchip/llvm-project
146 lines
5.3 KiB
Python
146 lines
5.3 KiB
Python
"""
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Test some SBValue APIs.
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"""
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import os, time
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import re
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import unittest2
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import lldb, lldbutil
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from lldbtest import *
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class ValueAPITestCase(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
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@python_api_test
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@dsym_test
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def test_with_dsym(self):
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"""Exercise some SBValue APIs."""
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d = {'EXE': self.exe_name}
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self.buildDsym(dictionary=d)
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self.setTearDownCleanup(dictionary=d)
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self.value_api(self.exe_name)
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@python_api_test
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@dwarf_test
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def test_with_dwarf(self):
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"""Exercise some SBValue APIs."""
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d = {'EXE': self.exe_name}
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self.buildDwarf(dictionary=d)
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self.setTearDownCleanup(dictionary=d)
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self.value_api(self.exe_name)
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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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# We'll use the test method name as the exe_name.
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self.exe_name = self.testMethodName
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# Find the line number to of function 'c'.
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self.line = line_number('main.c', '// Break at this line')
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def value_api(self, exe_name):
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"""Exercise some SBValue APIs."""
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exe = os.path.join(os.getcwd(), exe_name)
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# Create a target by the debugger.
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target = self.dbg.CreateTarget(exe)
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self.assertTrue(target, VALID_TARGET)
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# Create the breakpoint inside function 'main'.
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breakpoint = target.BreakpointCreateByLocation('main.c', self.line)
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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, self.get_process_working_directory())
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self.assertTrue(process, PROCESS_IS_VALID)
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# Get Frame #0.
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self.assertTrue(process.GetState() == lldb.eStateStopped)
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thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonBreakpoint)
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self.assertTrue(thread.IsValid(), "There should be a thread stopped due to breakpoint condition")
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frame0 = thread.GetFrameAtIndex(0)
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# Get global variable 'days_of_week'.
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list = target.FindGlobalVariables('days_of_week', 1)
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days_of_week = list.GetValueAtIndex(0)
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self.assertTrue(days_of_week, VALID_VARIABLE)
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self.assertTrue(days_of_week.GetNumChildren() == 7, VALID_VARIABLE)
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self.DebugSBValue(days_of_week)
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# Get global variable 'weekdays'.
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list = target.FindGlobalVariables('weekdays', 1)
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weekdays = list.GetValueAtIndex(0)
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self.assertTrue(weekdays, VALID_VARIABLE)
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self.assertTrue(weekdays.GetNumChildren() == 5, VALID_VARIABLE)
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self.DebugSBValue(weekdays)
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# Get global variable 'g_table'.
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list = target.FindGlobalVariables('g_table', 1)
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g_table = list.GetValueAtIndex(0)
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self.assertTrue(g_table, VALID_VARIABLE)
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self.assertTrue(g_table.GetNumChildren() == 2, VALID_VARIABLE)
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self.DebugSBValue(g_table)
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fmt = lldbutil.BasicFormatter()
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cvf = lldbutil.ChildVisitingFormatter(indent_child=2)
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rdf = lldbutil.RecursiveDecentFormatter(indent_child=2)
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if self.TraceOn():
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print fmt.format(days_of_week)
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print cvf.format(days_of_week)
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print cvf.format(weekdays)
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print rdf.format(g_table)
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# Get variable 'my_int_ptr'.
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value = frame0.FindVariable('my_int_ptr')
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self.assertTrue(value, VALID_VARIABLE)
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self.DebugSBValue(value)
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# Get what 'my_int_ptr' points to.
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pointed = value.GetChildAtIndex(0)
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self.assertTrue(pointed, VALID_VARIABLE)
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self.DebugSBValue(pointed)
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# While we are at it, verify that 'my_int_ptr' points to 'g_my_int'.
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symbol = target.ResolveLoadAddress(int(pointed.GetLocation(), 0)).GetSymbol()
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self.assertTrue(symbol)
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self.expect(symbol.GetName(), exe=False,
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startstr = 'g_my_int')
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# Get variable 'str_ptr'.
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value = frame0.FindVariable('str_ptr')
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self.assertTrue(value, VALID_VARIABLE)
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self.DebugSBValue(value)
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# SBValue::TypeIsPointerType() should return true.
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self.assertTrue(value.TypeIsPointerType())
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# Verify the SBValue::GetByteSize() API is working correctly.
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arch = self.getArchitecture()
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if arch == 'i386':
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self.assertTrue(value.GetByteSize() == 4)
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elif arch == 'x86_64':
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self.assertTrue(value.GetByteSize() == 8)
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# Get child at index 5 => 'Friday'.
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child = value.GetChildAtIndex(5, lldb.eNoDynamicValues, True)
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self.assertTrue(child, VALID_VARIABLE)
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self.DebugSBValue(child)
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self.expect(child.GetSummary(), exe=False,
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substrs = ['Friday'])
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# Now try to get at the same variable using GetValueForExpressionPath().
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# These two SBValue objects should have the same value.
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val2 = value.GetValueForExpressionPath('[5]')
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self.assertTrue(val2, VALID_VARIABLE)
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self.DebugSBValue(val2)
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self.assertTrue(child.GetValue() == val2.GetValue() and
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child.GetSummary() == val2.GetSummary())
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if __name__ == '__main__':
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import atexit
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lldb.SBDebugger.Initialize()
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atexit.register(lambda: lldb.SBDebugger.Terminate())
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unittest2.main()
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