Messages in this thread | | | Date | Tue, 25 Sep 2007 14:46:53 +0100 | From | Andy Whitcroft <> | Subject | 2.6.23-rc8-mm1 -- powerpc link failure |
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2.6.23-rc6-mm1, 2.6.23-rc7-mm1 and 2.6.23-rc8-mm1 all fail to link correctly on a powerpc machine (elm3b19) in our test grid. It fails as below:
LD vmlinux.o ld: dynreloc miscount for fs/built-in.o, section .opd ld: can not edit opd Bad value make: *** [vmlinux.o] Error 1
Compiler versions and linker versions as below:
root@elm3b19:~/apw/linux-2.6.22# gcc -v Using built-in specs. Target: powerpc-linux-gnu Configured with: ../src/configure -v --enable-languages=c,c++,java,f95,objc,ada,treelang --prefix=/usr --with-gxx-include-dir=/usr/include/c++/4.0.2 --enable-shared --with-system-zlib --libexecdir=/usr/lib --enable-nls --without-included-gettext --enable-threads=posix --program-suffix=-4.0 --enable-__cxa_atexit --enable-libstdcxx-allocator=mt --enable-clocale=gnu --enable-libstdcxx-debug --enable-java-gc=boehm --enable-java-awt=gtk-default --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.4.2-gcj-4.0-1.4.2.0/jre --enable-mpfr --disable-softfloat --enable-targets=powerpc-linux,powerpc64-linux --with-cpu=default32 --disable-werror --enable-checking=release powerpc-linux-gnu Thread model: posix gcc version 4.0.2 20050808 (prerelease) (Ubuntu 4.0.1-4ubuntu9) root@elm3b19:~/apw/linux-2.6.22# ld -v GNU ld version 2.16.1 Debian GNU/Linux
As suggested elsewhere I have had a go at tracking this down. Previous problems of this kind were introduced as a result of using 'weak' declarations to provide default implementations. This investigation led me to the following commit:
commit c60473b5d32ea6cf4561232bc852bacd3a513528 Author: Jiri Kosina <jkosina@suse.cz> Date: Sat Sep 15 01:49:49 2007 +0000
i386-and-x86_64-randomize-brk
Backing this change out seems to get us past this problem. If we are to support compilers of this age, and I believe we currently do, then we probabally need to avoid the weak declarations and use the Kconfig system to provide the alternatives here.
Jiri?
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