On Fri, Jul 29, 2011 at 02:00:16PM +0100, Andrew Haley wrote: following errors are given when linking a .so with -static-libgcc: /usr/lib/gcc/armv5tel-redhat-linux-gnueabi/4.5.1/libgcc_eh.a(unwind-arm.o): In function `__gnu_Unwind_Backtrace': (.text+0xf28): undefined reference to `__stack_chk_guard' No idea if this is related, but I think that the unwind-arm.o is the part that is responsible for generating backtraces. I'm not familiar with the internals of glibc nor gcc, so don't trust me too much on this ;) For this issue with building glibc on ARM, I have opend Bug 726495: - https://bugzilla.redhat.com/show_bug.cgi?id=726495 HTH, Niels