http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47874
Summary: Multiple Inheritance - Virtual Function - Segfault
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: isa...@xtra.co.nz
Created attachment 23449
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23449
gcc-4.6 -save-temps output, demos bug
The attached BugReport.ii demos a reproducible bug in a complex multiple
inheritance scheme. When the virtual function BugReport::Tier1::Object::Print
is overridden and called in a derived class then the program segfaults.
ggc-4.6 -v
==========
Using built-in specs.
COLLECT_GCC=gcc-4.6
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/4.6.0/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 4.6-20110216-1'
--with-bugurl=file:///usr/share/doc/gcc-4.6/README.Bugs
--enable-languages=c,c++,fortran,objc,obj-c++,go --prefix=/usr
--program-suffix=-4.6 --enable-shared --enable-multiarch
--enable-linker-build-id --with-system-zlib --libexecdir=/usr/lib
--without-included-gettext --enable-threads=posix
--with-gxx-include-dir=/usr/include/c++/4.6 --libdir=/usr/lib --enable-nls
--enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes
--enable-plugin --enable-gold --enable-ld=default --with-plugin-ld=ld.gold
--enable-objc-gc --with-arch-32=i586 --with-tune=generic
--enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu
--target=x86_64-linux-gnu
Thread model: posix
gcc version 4.6.0 20110216 (experimental) [trunk revision 170225] (Debian
4.6-20110216-1)
gcc-4.6 build command line
==========================
-std=c++0x -Wall -Wextra -pedantic -g -save-temps
Shell output
============
Segmentation fault
Gdb output
==========
Program received signal SIGSEGV, Segmentation fault.
0x0000000000000000 in ?? ()
