On Thu, Feb 19, 2015 at 1:04 PM, Uros Bizjak <ubiz...@gmail.com> wrote: > On Mon, Feb 16, 2015 at 5:30 PM, Richard Henderson <r...@redhat.com> wrote: > >>>>> 2015-02-12 H.J. Lu <hongjiu...@intel.com> >>>>> Richard Henderson <r...@redhat.com> >>>>> >>>>> PR rtl/32219 >>>>> * cgraphunit.c (cgraph_node::finalize_function): Set definition >>>>> before notice_global_symbol. >>>>> (varpool_node::finalize_decl): Likewise. >>>>> * varasm.c (default_binds_local_p_2): Rename from >>>>> default_binds_local_p_1, add weak_dominate argument. Use direct >>>>> returns instead of assigning to local variable. Unify varpool and >>>>> cgraph paths via symtab_node. Reject undef weak variables before >>>>> testing visibility. Reorder tests for simplicity. >>>>> (default_binds_local_p): Use default_binds_local_p_2. >>>>> (default_binds_local_p_1): Likewise. >>>>> (decl_binds_to_current_def_p): Unify varpool and cgraph paths >>>>> via symtab_node. >>>>> (default_elf_asm_output_external): Emit visibility when specified. >>>> >>>> It looks like this patch broke alphaev68-linux-gnu [1]. There are many >>>> failures of the type: >>>> >>>> /tmp/cck7V7MR.o: In function >>>> `__static_initialization_and_destruction_0(int, int)':^M >>>> (.text+0x3ac): relocation truncated to fit: GPRELHIGH against symbol >>>> `std::__cxx11::basic_string<char, std::char_traits<char>, >>>> std::allocator<char> >::~basic_string()@@GLIBCXX_3.4.21' defined in >>>> .text section in >>>> /space/uros/gcc-build/alphaev68-unknown-linux-gnu/./libstdc++-v3/src/.libs/libstdc++.so^M >>>> /space/homedirs/uros/local/bin/ld: /tmp/cck7V7MR.o: gp-relative >>>> relocation against dynamic symbol >>> >>> It could be related to: >>> >>> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65064 >>> >>> Before this bug fix, all common symbols don't bind locally, >>> which is one of PR 32219 bugs. After this fix, common >>> symbols bind locally. It may cause problems on targets with >>> small data sections and common symbols aren't in small >>> data section: >> >> This is a destructor, and so obviously not a common symbol. >> >> I'll have a look. > > The attached patch fixes all alpha-linux-gnu failures. > > 2015-02-19 Uros Bizjak <ubiz...@gmail.com> > > * config/alpha/alpha.c (alpha_in_small_data_p): Reject common symbols. > > Patch was bootstrapped and regression tested on alphaev68-linux-gnu. > > OK for mainline? >
You may want to use something like this: https://gcc.gnu.org/ml/gcc-patches/2015-02/msg01105.html -- H.J.
