qt5base-lts/tests/auto/corelib/global/qlogging
Thiago Macieira 644c06b48f Logging: fix crash when decoding a symbol that isn't a function
Saw this on my FreeBSD VM. The backtrace() function thought the nearest
symbol to something was "_ZTSNSt3__110__function6__baseIFbPvS2_EEE",
which decoded to

 typeinfo name for std::__1::__function::__base<bool (void*, void*)>

The function pointer type inside parameter threw the decoder for a loop
and caused it to crash with the failed assertion in qbytearray.h:

 inline char QByteArray::at(qsizetype i) const
 { Q_ASSERT(size_t(i) < size_t(size())); return d.data()[i]; }

I noticed this
 - because tst_qtimer hung
 - because qFormatLogMessage deadlocked acquiring QMessagePattern::mutex
 - because the logging recursed
 - because qCleanupFuncinfo failed an assertion while formatting the
   backtrace (my QT_MESSAGE_PATTERN has %{backtrace})
 - because QTimer::~QTimer -> QObject::killTimer printed a warning
 - because tst_QTimer::moveToThread produces warnings

Pick-to: 5.15 6.2 6.4 6.5
Change-Id: Ieec322d73c1e40ad95c8fffd17464f86e9725991
Reviewed-by: Kai Köhne <kai.koehne@qt.io>
2023-02-23 10:33:39 -08:00
..
app Use SPDX license identifiers 2022-05-16 16:37:38 +02:00
BLACKLIST CMake: Skip / ignore failing tests on CMake platforms 2020-07-01 14:55:29 +02:00
CMakeLists.txt tests: Remove remains of qmake conversion from CMakeLists.txt files 2023-02-17 21:56:49 +01:00
tst_qlogging.cpp Logging: fix crash when decoding a symbol that isn't a function 2023-02-23 10:33:39 -08:00
tst_qmessagelogger.cpp Use SPDX license identifiers 2022-05-16 16:37:38 +02:00