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"""
Test the solution to issue 11581.
valobj.AddressOf() returns None when an address is
expected in a SyntheticChildrenProvider
"""
import os, time
import unittest2
import lldb
from lldbtest import *
class Issue11581TestCase(TestBase):
mydir = os.path.join("expression_command", "issue_11588")
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.buildDefault()
self.runCmd("file a.out", CURRENT_EXECUTABLE_SET)
self.runCmd("breakpoint set --name main")
self.runCmd("run", RUN_SUCCEEDED)
self.runCmd("next", RUN_SUCCEEDED)
self.runCmd("next", RUN_SUCCEEDED)
self.runCmd("next", RUN_SUCCEEDED)
self.runCmd("next", RUN_SUCCEEDED)
self.runCmd("next", RUN_SUCCEEDED)
self.runCmd("command script import --allow-reload s11588.py")
self.runCmd("type synthetic add --python-class s11588.Issue11581SyntheticProvider StgClosure")
self.expect("print *((StgClosure*)(r14-1))",
substrs = ["(StgClosure) $",
"(StgClosure *) &$","0x",
"addr = ",
"load_address = "])
target = lldb.debugger.GetSelectedTarget()
process = target.GetProcess()
# register r14 does not exist on 32-bit architectures, it is an x86_64 extension
# let's skip this part of the test if we are in 32-bit mode
if process.GetAddressByteSize() == 8:
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("print *(StgClosure*)$r14",
substrs = ["(StgClosure) $",
"(StgClosure *) &$","0x",
"addr = ",
"load_address = ",
hex(addr)[2:].rstrip("L"),
str(addr)])
if __name__ == '__main__':
import atexit
lldb.SBDebugger.Initialize()
atexit.register(lambda: lldb.SBDebugger.Terminate())
unittest2.main()
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