| """ |
| Test some SBValue APIs. |
| """ |
| |
| import os, time |
| import re |
| import unittest2 |
| import lldb, lldbutil |
| from lldbtest import * |
| |
| class ValueAPITestCase(TestBase): |
| |
| mydir = os.path.join("python_api", "value") |
| |
| @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin") |
| @python_api_test |
| @dsym_test |
| def test_with_dsym(self): |
| """Exercise some SBValue APIs.""" |
| d = {'EXE': self.exe_name} |
| self.buildDsym(dictionary=d) |
| self.setTearDownCleanup(dictionary=d) |
| self.value_api(self.exe_name) |
| |
| @python_api_test |
| @dwarf_test |
| def test_with_dwarf(self): |
| """Exercise some SBValue APIs.""" |
| d = {'EXE': self.exe_name} |
| self.buildDwarf(dictionary=d) |
| self.setTearDownCleanup(dictionary=d) |
| self.value_api(self.exe_name) |
| |
| def setUp(self): |
| # Call super's setUp(). |
| TestBase.setUp(self) |
| # We'll use the test method name as the exe_name. |
| self.exe_name = self.testMethodName |
| # Find the line number to of function 'c'. |
| self.line = line_number('main.c', '// Break at this line') |
| |
| def value_api(self, exe_name): |
| """Exercise some SBValue APIs.""" |
| exe = os.path.join(os.getcwd(), exe_name) |
| |
| # Create a target by the debugger. |
| target = self.dbg.CreateTarget(exe) |
| self.assertTrue(target, VALID_TARGET) |
| |
| # Create the breakpoint inside function 'main'. |
| breakpoint = target.BreakpointCreateByLocation('main.c', self.line) |
| self.assertTrue(breakpoint, VALID_BREAKPOINT) |
| |
| # Now launch the process, and do not stop at entry point. |
| process = target.LaunchSimple(None, None, os.getcwd()) |
| self.assertTrue(process, PROCESS_IS_VALID) |
| |
| # Get Frame #0. |
| self.assertTrue(process.GetState() == lldb.eStateStopped) |
| thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonBreakpoint) |
| self.assertTrue(thread != None, "There should be a thread stopped due to breakpoint condition") |
| frame0 = thread.GetFrameAtIndex(0) |
| |
| # Get global variable 'days_of_week'. |
| list = target.FindGlobalVariables('days_of_week', 1) |
| days_of_week = list.GetValueAtIndex(0) |
| self.assertTrue(days_of_week, VALID_VARIABLE) |
| self.assertTrue(days_of_week.GetNumChildren() == 7, VALID_VARIABLE) |
| self.DebugSBValue(days_of_week) |
| |
| # Get global variable 'weekdays'. |
| list = target.FindGlobalVariables('weekdays', 1) |
| weekdays = list.GetValueAtIndex(0) |
| self.assertTrue(weekdays, VALID_VARIABLE) |
| self.assertTrue(weekdays.GetNumChildren() == 5, VALID_VARIABLE) |
| self.DebugSBValue(weekdays) |
| |
| # Get global variable 'g_table'. |
| list = target.FindGlobalVariables('g_table', 1) |
| g_table = list.GetValueAtIndex(0) |
| self.assertTrue(g_table, VALID_VARIABLE) |
| self.assertTrue(g_table.GetNumChildren() == 2, VALID_VARIABLE) |
| self.DebugSBValue(g_table) |
| |
| fmt = lldbutil.BasicFormatter() |
| cvf = lldbutil.ChildVisitingFormatter(indent_child=2) |
| rdf = lldbutil.RecursiveDecentFormatter(indent_child=2) |
| if self.TraceOn(): |
| print fmt.format(days_of_week) |
| print cvf.format(days_of_week) |
| print cvf.format(weekdays) |
| print rdf.format(g_table) |
| |
| # Get variable 'my_int_ptr'. |
| value = frame0.FindVariable('my_int_ptr') |
| self.assertTrue(value, VALID_VARIABLE) |
| self.DebugSBValue(value) |
| |
| # Get what 'my_int_ptr' points to. |
| pointed = value.GetChildAtIndex(0) |
| self.assertTrue(pointed, VALID_VARIABLE) |
| self.DebugSBValue(pointed) |
| |
| # While we are at it, verify that 'my_int_ptr' points to 'g_my_int'. |
| symbol = target.ResolveLoadAddress(int(pointed.GetLocation(), 0)).GetSymbol() |
| self.assertTrue(symbol) |
| self.expect(symbol.GetName(), exe=False, |
| startstr = 'g_my_int') |
| |
| # Get variable 'str_ptr'. |
| value = frame0.FindVariable('str_ptr') |
| self.assertTrue(value, VALID_VARIABLE) |
| self.DebugSBValue(value) |
| |
| # SBValue::TypeIsPointerType() should return true. |
| self.assertTrue(value.TypeIsPointerType()) |
| |
| # Verify the SBValue::GetByteSize() API is working correctly. |
| arch = self.getArchitecture() |
| if arch == 'i386': |
| self.assertTrue(value.GetByteSize() == 4) |
| elif arch == 'x86_64': |
| self.assertTrue(value.GetByteSize() == 8) |
| |
| # Get child at index 5 => 'Friday'. |
| child = value.GetChildAtIndex(5, lldb.eNoDynamicValues, True) |
| self.assertTrue(child, VALID_VARIABLE) |
| self.DebugSBValue(child) |
| |
| self.expect(child.GetSummary(), exe=False, |
| substrs = ['Friday']) |
| |
| # Now try to get at the same variable using GetValueForExpressionPath(). |
| # These two SBValue objects should have the same value. |
| val2 = value.GetValueForExpressionPath('[5]') |
| self.assertTrue(val2, VALID_VARIABLE) |
| self.DebugSBValue(val2) |
| self.assertTrue(child.GetValue() == val2.GetValue() and |
| child.GetSummary() == val2.GetSummary()) |
| |
| if __name__ == '__main__': |
| import atexit |
| lldb.SBDebugger.Initialize() |
| atexit.register(lambda: lldb.SBDebugger.Terminate()) |
| unittest2.main() |