* elf64-alpha.c (elf64_alpha_relax_with_lituse): Reject undefined

    * elf64-alpha.c (elf64_alpha_relax_with_lituse): Reject undefined
        symbols from JSR relaxation.
        (elf64_alpha_size_plt_section_1): New.
        (elf64_alpha_calc_dynrel_sizes): Split out .rela.got bits ...
        (elf64_alpha_size_rela_got_1): ... here.
        (elf64_alpha_size_dynamic_sections): Split out .rela.got bits ...
        (elf64_alpha_size_rela_got_section): ... here.
        (elf64_alpha_size_plt_section): New.
        (elf64_alpha_relax_section): Call them.
        (elf64_alpha_size_got_sections): Remove output_bfd arg.
        (elf64_alpha_finish_dynamic_symbol): Check gotent use_count.