When trying to compile and link the attached not.i with lto the linker dies with this error: /usr/bin/ld: internal error in set_linkonce_size, at ../../gold/layout.h:250 This only occurs if I use -use-linker-plugin, so I think this may be a bug in gcc's gold plugin, so I'm filing this as a gcc bug (but it may also be a bug in gold triggered by lto). To reproduce: $ /home/edwin/inst/bin/g++ -flto -c not.i -o not.o $ /home/edwin/inst/bin/g++ -shared -flto -use-linker-plugin not.o /usr/bin/ld: internal error in set_linkonce_size, at ../../gold/layout.h:250 collect2: ld returned 1 exit status $ /home/edwin/inst/bin/g++ -v Using built-in specs. COLLECT_GCC=/home/edwin/inst/bin/g++ COLLECT_LTO_WRAPPER=/home/edwin/inst/bin/../libexec/gcc/x86_64-unknown-linux-gnu/4.5.0/lto-wrapper Target: x86_64-unknown-linux-gnu Configured with: ../gcc/configure --enable-lto --enable-languages=c,c++ --enable-gold : (reconfigured) ../gcc/configure --enable-lto --enable-languages=c,c++ --enable-gold Thread model: posix gcc version 4.5.0 20091020 (experimental) (GCC) $ ld -v GNU gold (GNU Binutils for Debian 2.20) 1.9
Created attachment 18855 [details] testcase (reduced not.i)
Works for me evans:/abuild/jh/trunk-3/build-inst2/gcc/:[0]# /abuild/jh/trunk-install/bin/ld --version GNU gold (GNU Binutils; SUSE Linux Enterprise 11 2.20.0.20100122-0.7.9) 1.9 Copyright 2008 Free Software Foundation, Inc. This program is free software; you may redistribute it under the terms of the GNU General Public License version 3 or (at your option) a later version. This program has absolutely no warranty. evans:/abuild/jh/trunk-3/build-inst2/gcc/:[0]# /abuild/jh/trunk-install/bin/g++ --version g++ (GCC) 4.6.0 20110108 (experimental) Copyright (C) 2011 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. So I guess the problem is fixed at 4.6 branch - there was a lot of improvments for plugin symtabs there.