boringssl symbols conflict with openssl in component builds

[Chris Coulson]

I imagine this has been happening for a while, but it's just recently started causing crashes like this, probably due to ABI differences between openssl/boringssl:

Thread 1 "qmltest_api" received signal SIGSEGV, Segmentation fault.
__GI___pthread_rwlock_wrlock (rwlock=rwlock@entry=0x1) at pthread_rwlock_wrlock.c:100
100 pthread_rwlock_wrlock.c: No such file or directory.
(gdb) bt
#0 0x00007ffff5864854 in __GI___pthread_rwlock_wrlock (rwlock=rwlock@entry=0x1) at pthread_rwlock_wrlock.c:100
#1 0x00007fffef5df219 in CRYPTO_MUTEX_lock_write (lock=lock@entry=0x1) at ../../third_party/boringssl/src/crypto/thread_pthread.c:71
#2 0x00007fffef5c850f in CRYPTO_get_ex_new_index (ex_data_class=0x1, out_index=0x0, argl=0, argp=0x0, dup_func=0x0, free_func=0x0) at ../../third_party/boringssl/src/crypto/ex_data.c:148
#3 0x00007ffff757a370 in QSslSocketPrivate::ensureLibraryLoaded() () at ssl/qsslsocket_openssl.cpp:486
#4 0x00007ffff757cfed in QSslSocketPrivate::ensureInitialized() () at ssl/qsslsocket_openssl.cpp:608
#5 0x00007ffff757cfed in QSslSocketPrivate::ensureInitialized() () at ssl/qsslsocket_openssl.cpp:462
#6 0x00007ffff757cfed in QSslSocketPrivate::ensureInitialized() () at ssl/qsslsocket_openssl.cpp:604
#7 0x00007ffff75605d7 in QSslCertificate::QSslCertificate(QByteArray const&, QSsl::EncodingFormat) (this=0x997210) at ssl/qsslcertificate_p.h:79
#8 0x00007ffff75605d7 in QSslCertificate::QSslCertificate(QByteArray const&, QSsl::EncodingFormat) (this=0x7fffffff6800, data=..., format=QSsl::Der) at ssl/qsslcertificate.cpp:151
#9 0x00007ffff7e96e3b in OxideQSslCertificate::fingerprintSHA1() const (this=<optimised out>) at ../../oxide/qt/core/api/oxideqsslcertificate.cc:226
#10 0x00007ffff7e8e3e0 in OxideQSslCertificate::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) (_o=<optimised out>, _c=<optimised out>, _id=<optimised out>, _a=<optimised out>)
    at gen/oxide/qt/core/api/moc_oxideqsslcertificate.cc:147
#11 0x00007ffff78a611d in QV4::QQmlValueTypeWrapper::get(QV4::Managed*, QV4::String*, bool*) (m=<optimised out>, name=<optimised out>, hasProperty=0x0) at qml/qqmlvaluetypewrapper.cpp:374
#12 0x00007ffff780d90e in QV4::Runtime::getProperty(QV4::ExecutionEngine*, QV4::Value const&, int) (hasProperty=0x0, name=<optimised out>, this=<optimised out>) at jsruntime/qv4object_p.h:279
#13 0x00007ffff780d90e in QV4::Runtime::getProperty(QV4::ExecutionEngine*, QV4::Value const&, int) (engine=0x8f6910, object=..., nameIndex=<optimised out>) at jsruntime/qv4runtime.cpp:679
#14 0x00007fffc5aa0a8d in ()
#15 0x0000000000a16680 in ()
#16 0x00007fffc00aa3c8 in ()
#17 0x0003000000000001 in ()
#18 0x0000000000000000 in ()

[Chris Coulson (chrisccoulson)]

This doesn't affect normal builds because boringssl is statically linked and its symbols aren't public.