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* [Bug lto/52687] New: [LTO] undefined vtable in dynamic library
@ 2012-03-23 16:57 dimhen at gmail dot com
2012-03-26 8:28 ` [Bug lto/52687] " rguenth at gcc dot gnu.org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: dimhen at gmail dot com @ 2012-03-23 16:57 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52687
Bug #: 52687
Summary: [LTO] undefined vtable in dynamic library
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: lto
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: dimhen@gmail.com
GCC trunk [trunk revision 185738], Fedora 16/x64
$ cat foo.cpp
class foo {
virtual void bar();
virtual ~foo() {}
};
$ g++ -flto -c foo.cpp -o foo.o && g++ -shared foo.o -flto -o libfoo.so && nm
-D -C -u libfoo.so foo.o | grep foo
libfoo.so:
U vtable for foo
foo.o:
nm: foo.o: No symbols
native F16/x64 gcc-4.6.3 do the same
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug lto/52687] [LTO] undefined vtable in dynamic library
2012-03-23 16:57 [Bug lto/52687] New: [LTO] undefined vtable in dynamic library dimhen at gmail dot com
@ 2012-03-26 8:28 ` rguenth at gcc dot gnu.org
2012-03-26 10:11 ` dimhen at gmail dot com
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: rguenth at gcc dot gnu.org @ 2012-03-26 8:28 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52687
--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-03-26 08:27:11 UTC ---
Seems to work for me.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug lto/52687] [LTO] undefined vtable in dynamic library
2012-03-23 16:57 [Bug lto/52687] New: [LTO] undefined vtable in dynamic library dimhen at gmail dot com
2012-03-26 8:28 ` [Bug lto/52687] " rguenth at gcc dot gnu.org
@ 2012-03-26 10:11 ` dimhen at gmail dot com
2012-03-27 9:40 ` dimhen at gmail dot com
2012-03-29 7:56 ` dimhen at gmail dot com
3 siblings, 0 replies; 5+ messages in thread
From: dimhen at gmail dot com @ 2012-03-26 10:11 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52687
--- Comment #2 from Dmitry G. Dyachenko <dimhen at gmail dot com> 2012-03-26 10:07:53 UTC ---
May be issue is Fedora 16 specific?
i update gcc-trunk and retest with gcc-4.8.0/r185790 and with F16 gcc
For gcc-4.8.0 i try -O0/1/2/3/fast and w/o -O with no differences
[dimhen@dim tst]$ gcc -v
Using built-in specs.
COLLECT_GCC=/usr/bin/gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-redhat-linux/4.6.3/lto-wrapper
Target: x86_64-redhat-linux
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man
--infodir=/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla
--enable-bootstrap --enable-shared --enable-threads=posix
--enable-checking=release --with-system-zlib --enable-__cxa_atexit
--disable-libunwind-exceptions --enable-gnu-unique-object
--enable-linker-build-id
--enable-languages=c,c++,objc,obj-c++,java,fortran,ada,go,lto --enable-plugin
--enable-java-awt=gtk --disable-dssi
--with-java-home=/usr/lib/jvm/java-1.5.0-gcj-1.5.0.0/jre
--enable-libgcj-multifile --enable-java-maintainer-mode
--with-ecj-jar=/usr/share/java/eclipse-ecj.jar --disable-libjava-multilib
--with-ppl --with-cloog --with-tune=generic --with-arch_32=i686
--build=x86_64-redhat-linux
Thread model: posix
gcc version 4.6.3 20120306 (Red Hat 4.6.3-2) (GCC)
w/o LTO
[dimhen@dim tst]$ rm -f foo.o libfoo.so && g++ -c foo.cpp -o foo.o && g++
-shared foo.o -o libfoo.so && nm -D -C -u libfoo.so foo.o | grep foo
nm: foo.o: No symbols
libfoo.so:
foo.o:
with LTO
[dimhen@dim tst]$ rm -f foo.o libfoo.so && g++ -flto -c foo.cpp -o foo.o && g++
-shared foo.o -flto -o libfoo.so && nm -D -C -u libfoo.so foo.o | grep foo
nm: foo.o: No symbols
libfoo.so:
U vtable for foo
foo.o:
[dimhen@dim tst]$ uname -a
Linux dim.cp.ru 3.3.0-4.fc16.x86_64 #1 SMP Tue Mar 20 18:05:40 UTC 2012 x86_64
x86_64 x86_64 GNU/Linux
gcc-4.8.0 with LTO
[dimhen@dim tst]$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/local/gcc_current/libexec/gcc/x86_64-unknown-linux-gnu/4.8.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: /home/dimhen/src/gcc-current/configure
--prefix=/usr/local/gcc_current --with-multilib-list=m64 --enable-__cxa_atexit
--enable-shared --enable-checking=df,fold,rtl,tree,yes
--enable-gnu-unique-object --enable-linker-build-id
--enable-languages=c,c++,lto --enable-plugin --with-tune=generic
--enable-version-specific-runtime-libs
Thread model: posix
gcc version 4.8.0 20120326 (experimental) [trunk revision 185790] (GCC)
[dimhen@dim tst]$ rm -f foo.o libfoo.so && g++ -flto -c foo.cpp -o foo.o && g++
-shared foo.o -flto -o libfoo.so && nm -D -C -u libfoo.so foo.o | grep foo
nm: foo.o: No symbols
libfoo.so:
U vtable for foo
foo.o:
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug lto/52687] [LTO] undefined vtable in dynamic library
2012-03-23 16:57 [Bug lto/52687] New: [LTO] undefined vtable in dynamic library dimhen at gmail dot com
2012-03-26 8:28 ` [Bug lto/52687] " rguenth at gcc dot gnu.org
2012-03-26 10:11 ` dimhen at gmail dot com
@ 2012-03-27 9:40 ` dimhen at gmail dot com
2012-03-29 7:56 ` dimhen at gmail dot com
3 siblings, 0 replies; 5+ messages in thread
From: dimhen at gmail dot com @ 2012-03-27 9:40 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52687
--- Comment #3 from Dmitry G. Dyachenko <dimhen at gmail dot com> 2012-03-27 09:39:05 UTC ---
Fedora 17 Alpha / x64 has no problems
gcc-4.7.0 20120208 (Red Hat 4.7.0-0.12)
binutils 2.22.52.0.1-4.fc17 20120131
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug lto/52687] [LTO] undefined vtable in dynamic library
2012-03-23 16:57 [Bug lto/52687] New: [LTO] undefined vtable in dynamic library dimhen at gmail dot com
` (2 preceding siblings ...)
2012-03-27 9:40 ` dimhen at gmail dot com
@ 2012-03-29 7:56 ` dimhen at gmail dot com
3 siblings, 0 replies; 5+ messages in thread
From: dimhen at gmail dot com @ 2012-03-29 7:56 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52687
Dmitry G. Dyachenko <dimhen at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |INVALID
--- Comment #4 from Dmitry G. Dyachenko <dimhen at gmail dot com> 2012-03-29 07:10:39 UTC ---
problem was with ld-2.21.53.0.1
gold works fine
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2012-03-29 7:10 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2012-03-23 16:57 [Bug lto/52687] New: [LTO] undefined vtable in dynamic library dimhen at gmail dot com
2012-03-26 8:28 ` [Bug lto/52687] " rguenth at gcc dot gnu.org
2012-03-26 10:11 ` dimhen at gmail dot com
2012-03-27 9:40 ` dimhen at gmail dot com
2012-03-29 7:56 ` dimhen at gmail dot com
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