lldb/test/API/python_api/function_symbol/TestSymbolAPI.py

"""
Test newly added SBSymbol and SBAddress APIs.
"""

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


class SymbolAPITestCase(TestBase):
    def setUp(self):
        # Call super's setUp().
        TestBase.setUp(self)
        # Find the line number to of function 'c'.
        self.line1 = line_number(
            "main.c", "// Find the line number for breakpoint 1 here."
        )
        self.line2 = line_number(
            "main.c", "// Find the line number for breakpoint 2 here."
        )

    @expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr21765")
    def test(self):
        """Exercise some SBSymbol and SBAddress APIs."""
        self.build()
        exe = self.getBuildArtifact("a.out")

        # Create a target by the debugger.
        target = self.dbg.CreateTarget(exe)
        self.assertTrue(target, VALID_TARGET)

        # Now create the two breakpoints inside function 'a'.
        breakpoint1 = target.BreakpointCreateByLocation("main.c", self.line1)
        breakpoint2 = target.BreakpointCreateByLocation("main.c", self.line2)
        self.trace("breakpoint1:", breakpoint1)
        self.trace("breakpoint2:", breakpoint2)
        self.assertTrue(
            breakpoint1 and breakpoint1.GetNumLocations() == 1, VALID_BREAKPOINT
        )
        self.assertTrue(
            breakpoint2 and breakpoint2.GetNumLocations() == 1, VALID_BREAKPOINT
        )

        # Now launch the process, and do not stop at entry point.
        process = target.LaunchSimple(None, None, self.get_process_working_directory())
        self.assertTrue(process, PROCESS_IS_VALID)

        # Frame #0 should be on self.line1.
        self.assertState(process.GetState(), lldb.eStateStopped)
        thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonBreakpoint)
        self.assertTrue(
            thread.IsValid(),
            "There should be a thread stopped due to breakpoint condition",
        )
        frame0 = thread.GetFrameAtIndex(0)
        symbol_line1 = frame0.GetSymbol()
        # We should have a symbol type of code.
        self.assertEqual(symbol_line1.GetType(), lldb.eSymbolTypeCode)
        addr_line1 = symbol_line1.GetStartAddress()
        # And a section type of code, too.
        self.assertEqual(
            addr_line1.GetSection().GetSectionType(), lldb.eSectionTypeCode
        )

        # Continue the inferior, the breakpoint 2 should be hit.
        process.Continue()
        self.assertState(process.GetState(), lldb.eStateStopped)
        thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonBreakpoint)
        self.assertTrue(
            thread.IsValid(),
            "There should be a thread stopped due to breakpoint condition",
        )
        frame0 = thread.GetFrameAtIndex(0)
        symbol_line2 = frame0.GetSymbol()
        # We should have a symbol type of code.
        self.assertEqual(symbol_line2.GetType(), lldb.eSymbolTypeCode)
        addr_line2 = symbol_line2.GetStartAddress()
        # And a section type of code, too.
        self.assertEqual(
            addr_line2.GetSection().GetSectionType(), lldb.eSectionTypeCode
        )

        # Now verify that both addresses point to the same module.
        if self.TraceOn():
            print("UUID:", addr_line1.GetModule().GetUUIDString())
        self.assertEqual(
            addr_line1.GetModule().GetUUIDString(),
            addr_line2.GetModule().GetUUIDString(),
        )