"""Test the SBData APIs.""" import os import unittest2 import lldb import pexpect from lldbtest import * from math import fabs class SBDataAPICase(TestBase): mydir = os.path.join("python_api", "sbdata") @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin") @python_api_test def test_with_dsym_and_run_command(self): """Test the SBData APIs.""" self.buildDsym() self.data_api() @python_api_test def test_with_dwarf_and_run_command(self): """Test the SBData APIs.""" self.buildDwarf() self.data_api() def setUp(self): # Call super's setUp(). TestBase.setUp(self) # Find the line number to break on inside main.cpp. self.line = line_number('main.cpp', '// set breakpoint here') def data_api(self): """Test the SBData APIs.""" self.runCmd("file a.out", CURRENT_EXECUTABLE_SET) self.expect("breakpoint set -f main.cpp -l %d" % self.line, BREAKPOINT_CREATED, startstr = "Breakpoint created: 1: file ='main.cpp', line = %d, locations = 1" % self.line) self.runCmd("run", RUN_SUCCEEDED) # The stop reason of the thread should be breakpoint. self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT, substrs = ['stopped', 'stop reason = breakpoint']) target = self.dbg.GetSelectedTarget() process = target.GetProcess() thread = process.GetThreadAtIndex(0) frame = thread.GetSelectedFrame() foobar = frame.FindVariable('foobar') if self.TraceOn(): print foobar data = foobar.GetPointeeData(0, 2) if self.TraceOn(): print data offset = 0 error = lldb.SBError() self.assertTrue(data.GetUnsignedInt32(error, offset) == 1, 'foo[0].a == 1') offset += 4 low = data.GetSignedInt16(error, offset) offset += 2 high = data.GetSignedInt16(error, offset) offset += 2 self.assertTrue ((low == 9 and high == 0) or (low == 0 and high == 9), 'foo[0].b == 9') self.assertTrue( fabs(data.GetFloat(error, offset) - 3.14) < 1, 'foo[0].c == 3.14') offset += 4 self.assertTrue(data.GetUnsignedInt32(error, offset) == 8, 'foo[1].a == 8') offset += 4 self.assertTrue(data.GetUnsignedInt32(error, offset) == 5, 'foo[1].b == 5') offset += 4 self.runCmd("n") offset = 16 self.assertTrue(data.GetUnsignedInt32(error, offset) == 5, 'saved foo[1].b == 5') data = foobar.GetPointeeData(1, 1) offset = 0 self.assertTrue(data.GetSignedInt32(error, offset) == 8, 'new foo[1].a == 8') offset += 4 self.assertTrue(data.GetSignedInt32(error, offset) == 7, 'new foo[1].a == 7') offset += 8 self.assertTrue(data.GetUnsignedInt32(error, offset) == 0, 'do not read beyond end') star_foobar = foobar.Dereference() data = star_foobar.GetData() if self.TraceOn(): print data offset = 0 self.assertTrue(data.GetUnsignedInt32(error, offset) == 1, 'foo[0].a == 1') offset += 4 self.assertTrue(data.GetUnsignedInt32(error, offset) == 9, 'foo[0].b == 9') foobar_addr = star_foobar.GetLoadAddress() foobar_addr += 12 # http://llvm.org/bugs/show_bug.cgi?id=11579 # lldb::SBValue::CreateValueFromAddress does not verify SBType::GetPointerType succeeds # This should not crash LLDB. nothing = foobar.CreateValueFromAddress("nothing", foobar_addr, star_foobar.GetType().GetBasicType(lldb.eBasicTypeInvalid)) new_foobar = foobar.CreateValueFromAddress("f00", foobar_addr, star_foobar.GetType()) if self.TraceOn(): print new_foobar data = new_foobar.GetData() if self.TraceOn(): print data offset = 0 self.assertTrue(data.GetUnsignedInt32(error, offset) == 8, 'then foo[1].a == 8') offset += 4 self.assertTrue(data.GetUnsignedInt32(error, offset) == 7, 'then foo[1].b == 7') offset += 4 self.assertTrue(fabs(data.GetFloat(error, offset) - 3.14) < 1, 'foo[1].c == 3.14') self.runCmd("n") offset = 0 self.assertTrue(data.GetUnsignedInt32(error, offset) == 8, 'then foo[1].a == 8') offset += 4 self.assertTrue(data.GetUnsignedInt32(error, offset) == 7, 'then foo[1].b == 7') offset += 4 self.assertTrue(fabs(data.GetFloat(error, offset) - 3.14) < 1, 'foo[1].c == 3.14') data = new_foobar.GetData() if self.TraceOn(): print data offset = 0 self.assertTrue(data.GetUnsignedInt32(error, offset) == 8, 'finally foo[1].a == 8') offset += 4 self.assertTrue(data.GetUnsignedInt32(error, offset) == 7, 'finally foo[1].b == 7') offset += 4 self.assertTrue(fabs(data.GetFloat(error, offset) - 6.28) < 1, 'foo[1].c == 6.28') self.runCmd("n") barfoo = frame.FindVariable('barfoo') data = barfoo.GetData() if self.TraceOn(): print barfoo if self.TraceOn(): print data offset = 0 self.assertTrue(data.GetUnsignedInt32(error, offset) == 1, 'barfoo[0].a = 1') offset += 4 self.assertTrue(data.GetUnsignedInt32(error, offset) == 2, 'barfoo[0].b == 2') offset += 4 self.assertTrue(fabs(data.GetFloat(error, offset) - 3) < 1, 'barfoo[0].c == 3') offset += 4 self.assertTrue(data.GetUnsignedInt32(error, offset) == 4, 'barfoo[1].a = 4') offset += 4 self.assertTrue(data.GetUnsignedInt32(error, offset) == 5, 'barfoo[1].b == 5') offset += 4 self.assertTrue(fabs(data.GetFloat(error, offset) - 6) < 1, 'barfoo[1].c == 6') new_object = barfoo.CreateValueFromData("new_object",data,barfoo.GetType().GetBasicType(lldb.eBasicTypeInt)) if self.TraceOn(): print new_object self.assertTrue(new_object.GetLoadAddress() == 0xFFFFFFFFFFFFFFFF, 'GetLoadAddress() == invalid') self.assertTrue(new_object.AddressOf().IsValid() == False, 'AddressOf() == invalid') self.assertTrue(new_object.GetAddress().IsValid() == False, 'GetAddress() == invalid') self.assertTrue(new_object.GetValue() == "1", 'new_object == 1') data.SetData(error, 'A\0\0\0', data.GetByteOrder(), data.GetAddressByteSize()) data2 = lldb.SBData() data2.SetData(error, 'BCD', data.GetByteOrder(), data.GetAddressByteSize()) data.Append(data2) if self.TraceOn(): print data # this breaks on EBCDIC offset = 0 self.assertTrue(data.GetUnsignedInt32(error, offset) == 65, 'made-up data == 65') offset += 4 self.assertTrue(data.GetUnsignedInt8(error, offset) == 66, 'made-up data == 66') offset += 1 self.assertTrue(data.GetUnsignedInt8(error, offset) == 67, 'made-up data == 67') offset += 1 self.assertTrue(data.GetUnsignedInt8(error, offset) == 68, 'made-up data == 68') offset += 1 if __name__ == '__main__': import atexit lldb.SBDebugger.Initialize() atexit.register(lambda: lldb.SBDebugger.Terminate()) unittest2.main()