xref: /llvm-project-15.0.7/lldb/test/API/functionalities/breakpoint/address_breakpoints/TestBadAddressBreakpoints.py (revision 4cc8f2a0)

"""
Test that breakpoints set on a bad address say they are bad.
"""



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


class BadAddressBreakpointTestCase(TestBase):

    NO_DEBUG_INFO_TESTCASE = True

    def test_bad_address_breakpoints(self):
        """Test that breakpoints set on a bad address say they are bad."""
        self.build()
        self.address_breakpoints()

    def address_breakpoints(self):
        """Test that breakpoints set on a bad address say they are bad."""
        target, process, thread, bkpt = \
            lldbutil.run_to_source_breakpoint(self,
                                              "Set a breakpoint here",
                                              lldb.SBFileSpec("main.c"))



        # illegal_address will hold (optionally) an address that, if
        # used as a breakpoint, will generate an unresolved breakpoint.
        illegal_address = None

        # Walk through all the memory regions in the process and
        # find an address that is invalid.
        regions = process.GetMemoryRegions()
        for region_idx in range(regions.GetSize()):
            region = lldb.SBMemoryRegionInfo()
            regions.GetMemoryRegionAtIndex(region_idx, region)
            if illegal_address == None or \
                region.GetRegionEnd() > illegal_address:
                illegal_address = region.GetRegionEnd()

        if illegal_address is not None:
            # Now, set a breakpoint at the address we know is illegal.
            bkpt = target.BreakpointCreateByAddress(illegal_address)
            # Verify that breakpoint is not resolved.
            for bp_loc in bkpt:
                self.assertEquals(bp_loc.IsResolved(), False)
        else:
            self.fail(
                "Could not find an illegal address at which to set a bad breakpoint.")