https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64163
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2014-12-04
Ever confirmed|0 |1
--- Comment #8 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Markus Trippelsdorf from comment #7)
> Here is another reduced testcase. This time hopefully without and ODR issues.
>
> % cat qmimeglobpattern.ii
> class A
> {
> public:
> bool deref ();
> };
> class QString;
> struct B
> {
> A ref;
> };
> template <typename> class QList
> {
> B d;
> public:
> ~QList ();
> class const_iterator
> {
> };
> const_iterator constBegin ();
> void clear ();
> void dealloc ();
> };
> template <typename T> QList<T>::~QList ()
> {
> if (d.ref.deref ())
> dealloc ();
> }
> template <typename T>
> void
> QList<T>::clear ()
> {
> QList ();
> }
> class A1 : public QList<QString>
> {
> };
> class B1
> {
> public:
> B1 (A1);
> };
> struct F
> {
> void addMatch (const QString &&);
> A1 m_matchingMimeTypes;
> };
> class G
> {
> A1 matchingGlobs (const QString &) const;
> };
> void
> F::addMatch (const QString &&)
> {
> m_matchingMimeTypes.clear ();
> }
> A1
> G::matchingGlobs (const QString &) const
> {
> A1 a;
> for (B1 b (a);;)
> ;
> }
>
> % cat qmimeprovider.ii
> class A
> {
> public:
> bool deref ();
> };
> class QString;
> struct B
> {
> A ref;
> };
> template <typename> class QList
> {
> B d;
> public:
> ~QList ();
> class const_iterator
> {
> };
> const_iterator constBegin ();
> void clear ();
> void dealloc ();
> };
>
> class C
> {
> QList<QString> c;
> QList<QString>::const_iterator i;
>
> public:
> C (QList<QString>) : i (c.constBegin ()) {}
> };
> template <typename T> QList<T>::~QList ()
> {
> if (d.ref.deref ())
> dealloc ();
> }
>
> void
> fn1 ()
> {
> QList<QString> a;
> C b (a);
> }
>
> % g++ -fuse-ld=bfd -shared -fPIC -O3 -fvisibility=hidden -std=c++0x
> qmimeglobpattern.ii qmimeprovider.ii
> % g++ -fuse-ld=gold -shared -fPIC -O3 -fvisibility=hidden -std=c++0x
> qmimeglobpattern.ii qmimeprovider.ii
> /usr/bin/ld.gold: error: /tmp/ccRfiSrB.o: requires dynamic R_X86_64_PC32
> reloc against '_ZN5QListI7QStringED1Ev' which may overflow at runtime;
> recompile with -fPIC
> /tmp/ccRfiSrB.o:qmimeprovider.ii:function fn1(): warning: relocation refers
> to discarded section
> /tmp/ccRfiSrB.o:qmimeprovider.ii:function fn1(): warning: relocation refers
> to discarded section
> /tmp/ccRfiSrB.o:qmimeprovider.ii:function fn1(): warning: relocation refers
> to discarded section
> collect2: error: ld returned 1 exit status
This is caused by r218024.
