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* [Bug c++/17182] New: [3.5 regression] virtual destructor not in shared library @ 2004-08-25 13:07 Ralf dot Wildenhues at gmx dot de 2004-08-25 13:17 ` [Bug c++/17182] " Ralf dot Wildenhues at gmx dot de ` (2 more replies) 0 siblings, 3 replies; 4+ messages in thread From: Ralf dot Wildenhues at gmx dot de @ 2004-08-25 13:07 UTC (permalink / raw) To: gcc-bugs This example fails on CVS HEAD gcc (as of yesterday), but not 3.4, neither does the original problem from which I stripped this example fail with CVS from 6 weeks ago. /* Save this as a.cc g++ -fPIC -DPIC -c -o a.o a.cc g++ -shared a.o -o libfoo.so Now, link a trivial program against it (int main(void) { }). g++ -o b b.cc -L. -lfoo */ struct B { virtual ~B () { } virtual void dummy() { } }; void bar() { struct C : public B { C (const B& b) : B(b) { } }; B b; new C(b); } The error given is ./libfoo.so: undefined reference to `bar()::C::~C()' ./libfoo.so: undefined reference to `bar()::C::~C()' with current gcc. BTW, the 'new C(b);' line is not necessary with CVS HEAD to expose the bug. With 3.4, however, class C is optimized away completely without this line. Regards, Ralf -- Summary: [3.5 regression] virtual destructor not in shared library Product: gcc Version: 3.5.0 Status: UNCONFIRMED Severity: normal Priority: P2 Component: c++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: Ralf dot Wildenhues at gmx dot de CC: gcc-bugs at gcc dot gnu dot org GCC host triplet: i686-pc-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17182 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/17182] [3.5 regression] virtual destructor not in shared library 2004-08-25 13:07 [Bug c++/17182] New: [3.5 regression] virtual destructor not in shared library Ralf dot Wildenhues at gmx dot de @ 2004-08-25 13:17 ` Ralf dot Wildenhues at gmx dot de 2004-08-25 13:18 ` Ralf dot Wildenhues at gmx dot de 2004-08-25 15:06 ` pinskia at gcc dot gnu dot org 2 siblings, 0 replies; 4+ messages in thread From: Ralf dot Wildenhues at gmx dot de @ 2004-08-25 13:17 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From Ralf dot Wildenhues at gmx dot de 2004-08-25 13:17 ------- Created an attachment (id=6985) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=6985&action=view) nm output of good object nm output of object generated by gcc-3.4.1 -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17182 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/17182] [3.5 regression] virtual destructor not in shared library 2004-08-25 13:07 [Bug c++/17182] New: [3.5 regression] virtual destructor not in shared library Ralf dot Wildenhues at gmx dot de 2004-08-25 13:17 ` [Bug c++/17182] " Ralf dot Wildenhues at gmx dot de @ 2004-08-25 13:18 ` Ralf dot Wildenhues at gmx dot de 2004-08-25 15:06 ` pinskia at gcc dot gnu dot org 2 siblings, 0 replies; 4+ messages in thread From: Ralf dot Wildenhues at gmx dot de @ 2004-08-25 13:18 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From Ralf dot Wildenhues at gmx dot de 2004-08-25 13:18 ------- Created an attachment (id=6986) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=6986&action=view) nm output of bad object this is what CVS HEAD generates. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17182 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/17182] [3.5 regression] virtual destructor not in shared library 2004-08-25 13:07 [Bug c++/17182] New: [3.5 regression] virtual destructor not in shared library Ralf dot Wildenhues at gmx dot de 2004-08-25 13:17 ` [Bug c++/17182] " Ralf dot Wildenhues at gmx dot de 2004-08-25 13:18 ` Ralf dot Wildenhues at gmx dot de @ 2004-08-25 15:06 ` pinskia at gcc dot gnu dot org 2 siblings, 0 replies; 4+ messages in thread From: pinskia at gcc dot gnu dot org @ 2004-08-25 15:06 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From pinskia at gcc dot gnu dot org 2004-08-25 15:06 ------- *** This bug has been marked as a duplicate of 17155 *** -- What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution| |DUPLICATE http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17182 ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2004-08-25 15:06 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2004-08-25 13:07 [Bug c++/17182] New: [3.5 regression] virtual destructor not in shared library Ralf dot Wildenhues at gmx dot de 2004-08-25 13:17 ` [Bug c++/17182] " Ralf dot Wildenhues at gmx dot de 2004-08-25 13:18 ` Ralf dot Wildenhues at gmx dot de 2004-08-25 15:06 ` pinskia at gcc dot gnu dot org
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