* ldso/include/dl-hash.h (struct elf_resolve) [__arc__ && USE_TLS]:
         New member l_tls_get_addr.
        * ldso/ldso/arc/dl-sysdep.h: Add double-include guards.
        (tls_get_addr_t, __tls_get_gd_dispatch_t): New typedefs.
        * ldso/ldso/arc/elfinterp.c (dl-sysdep.h): Include.
        (__tls_get_ie_addr, tls_get_gd_dispatch): New functions.
        (_dl_do_reloc) [R_ARC_TLS_DTP{MOD,OFF}: Change to descriptor model.
        * libpthread/nptl/sysdeps/arc/tls_get_addr_refresh_dtv.S: New file.