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"""
Test the solution to issue 11581.
valobj.AddressOf() returns None when an address is
expected in a SyntheticChildrenProvider
"""
from __future__ import print_function
import os
import time
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class Issue11581TestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
@expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr24778")
def test_11581_commands(self):
# This is the function to remove the custom commands in order to have a
# clean slate for the next test case.
def cleanup():
self.runCmd('type synthetic clear', check=False)
# Execute the cleanup function during test case tear down.
self.addTearDownHook(cleanup)
"""valobj.AddressOf() should return correct values."""
self.build()
(target, process, thread, bkpt) = lldbutil.run_to_source_breakpoint(self,
'Set breakpoint here.',
lldb.SBFileSpec("main.cpp", False))
self.runCmd("command script import --allow-reload s11588.py")
self.runCmd(
"type synthetic add --python-class s11588.Issue11581SyntheticProvider StgClosure")
self.expect("expr --show-types -- *((StgClosure*)(r14-1))",
substrs=["(StgClosure) $",
"(StgClosure *) &$", "0x",
"addr = ",
"load_address = "])
# register r14 is an x86_64 extension let's skip this part of the test
# if we are on a different architecture
if self.getArchitecture() == 'x86_64':
target = self.dbg.GetSelectedTarget()
process = target.GetProcess()
frame = process.GetSelectedThread().GetSelectedFrame()
pointer = frame.FindVariable("r14")
addr = pointer.GetValueAsUnsigned(0)
self.assertTrue(addr != 0, "could not read pointer to StgClosure")
addr = addr - 1
self.runCmd("register write r14 %d" % addr)
self.expect(
"register read r14", substrs=[
"0x", hex(addr)[
2:].rstrip("L")]) # Remove trailing 'L' if it exists
self.expect("expr --show-types -- *(StgClosure*)$r14",
substrs=["(StgClosure) $",
"(StgClosure *) &$", "0x",
"addr = ",
"load_address = ",
hex(addr)[2:].rstrip("L"),
str(addr)])
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