xref: /llvm-project-15.0.7/lldb/test/API/functionalities/set-data/TestSetData.py (revision 99451b44)

"""
Set the contents of variables and registers using raw data
"""



import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil


class SetDataTestCase(TestBase):

    mydir = TestBase.compute_mydir(__file__)

    @skipUnlessDarwin
    def test_set_data(self):
        """Test setting the contents of variables and registers using raw data."""
        self.build()
        exe = self.getBuildArtifact("a.out")
        self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)

        self.runCmd("br s -p First")
        self.runCmd("br s -p Second")

        self.runCmd("run", RUN_SUCCEEDED)

        self.expect("p myFoo.x", VARIABLES_DISPLAYED_CORRECTLY,
                    substrs=['2'])

        process = self.dbg.GetSelectedTarget().GetProcess()
        frame = process.GetSelectedThread().GetFrameAtIndex(0)

        x = frame.FindVariable("myFoo").GetChildMemberWithName("x")

        my_data = lldb.SBData.CreateDataFromSInt32Array(
            lldb.eByteOrderLittle, 8, [4])
        err = lldb.SBError()

        self.assertTrue(x.SetData(my_data, err))

        self.runCmd("continue")

        self.expect("p myFoo.x", VARIABLES_DISPLAYED_CORRECTLY,
                    substrs=['4'])

        frame = process.GetSelectedThread().GetFrameAtIndex(0)

        x = frame.FindVariable("string")

        if process.GetAddressByteSize() == 8:
            my_data = lldb.SBData.CreateDataFromUInt64Array(
                process.GetByteOrder(), 8, [0])
        else:
            my_data = lldb.SBData.CreateDataFromUInt32Array(
                process.GetByteOrder(), 4, [0])

        err = lldb.SBError()

        self.assertTrue(x.SetData(my_data, err))

        self.expect(
            "fr var -d run-target string",
            VARIABLES_DISPLAYED_CORRECTLY,
            substrs=[
                'NSString *',
                'nil'])