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# Copyright (C) 2017 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
import os
import sys
import imp
from distutils.version import LooseVersion
MODULE_NAME = 'qt'
debug = print if 'QT_LLDB_SUMMARY_PROVIDER_DEBUG' in os.environ \
else lambda *a, **k: None
def import_bridge(path, debugger, session_dict, reload_module=False):
if not reload_module and MODULE_NAME in sys.modules:
del sys.modules[MODULE_NAME]
if sys.version_info[0] >= 3:
sys.path.append(os.path.dirname(path))
debug(f"Loading source of Qt Creator bridge from '{path}'")
bridge = imp.load_source(MODULE_NAME, path)
if not hasattr(bridge, '__lldb_init_module'):
print("Could not find '__lldb_init_module'. Ignoring.")
return None
# Make available for the current LLDB session, so that LLDB
# can find the functions when initializing the module.
session_dict[MODULE_NAME] = bridge
# Initialize the module now that it's available globally
debug(f"Initializing Qt Creator bridge by calling __lldb_init_module(): {bridge}")
bridge.__lldb_init_module(debugger, session_dict)
if not debugger.GetCategory('Qt'):
debug("Could not find Qt debugger category. Qt Creator summary providers not loaded.")
# Summary provider failed for some reason
del session_dict[MODULE_NAME]
return None
debug("Bridge loaded successfully")
return bridge
def __lldb_init_module(debugger, session_dict):
# Check if the module has already been imported globally. This ensures
# that the Qt Creator application search is only performed once per
# LLDB process invocation, while still reloading for each session.
if MODULE_NAME in sys.modules:
module = sys.modules[MODULE_NAME]
debug(f"Module '{module.__file__}' already imported. Reloading for this session.")
# Reload module for this sessions
bridge = import_bridge(module.__file__, debugger, session_dict,
reload_module = True)
if bridge:
debug("Qt summary providers successfully reloaded.")
return
else:
print("Bridge reload failed. Trying to find other Qt Creator bridges.")
versions = {}
for path in os.popen('mdfind kMDItemCFBundleIdentifier=org.qt-project.qtcreator'):
path = path.strip()
file = open(os.path.join(path, 'Contents', 'Info.plist'), "rb")
import plistlib
plist = plistlib.load(file)
version = None
for key in ["CFBundleVersion", "CFBundleShortVersionString"]:
if key in plist:
version = plist[key]
break
if not version:
print(f"Could not resolve version for '{path}'. Ignoring.")
continue
versions[version] = path
if not len(versions):
print("Could not find Qt Creator installation. No Qt summary providers installed.")
return
for version in sorted(versions, key=LooseVersion, reverse=True):
path = versions[version]
debug(f"Loading Qt summary providers from Creator Qt {version} in '{path}'")
bridge_path = '{}/Contents/Resources/debugger/lldbbridge.py'.format(path)
bridge = import_bridge(bridge_path, debugger, session_dict)
if bridge:
debug(f"Qt summary providers successfully loaded.")
return
if 'QT_LLDB_SUMMARY_PROVIDER_DEBUG' not in os.environ:
print("Could not find any valid Qt Creator bridges with summary providers. "
"Launch lldb or Qt Creator with the QT_LLDB_SUMMARY_PROVIDER_DEBUG environment "
"variable to debug.")
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