Rename .plt.bnd to .plt.sec to indicate that this is used as the second
PLT section. There is no change in run-time behavior. We also scan the
.plt.sec section to synthesize PLT symbols.
bfd/
* elf64-x86-64.c (elf_x86_64_link_hash_entry): Rename plt_bnd
to plt_second.
(elf_x86_64_link_hash_table): Rename plt_bnd/plt_bnd_eh_frame
to plt_second/plt_second_eh_frame.
(elf_x86_64_link_hash_newfunc): Updated.
(elf_x86_64_allocate_dynrelocs): Likewise.
(elf_x86_64_size_dynamic_sections): Likewise.
(elf_x86_64_relocate_section): Likewise.
(elf_x86_64_finish_dynamic_symbol): Likewise.
(elf_x86_64_finish_dynamic_sections): Likewise.
(elf_x86_64_plt_type): Rename plt_bnd to plt_second.
(elf_x86_64_get_synthetic_symtab): Updated. Also scan the
.plt.sec section.
(elf_backend_setup_gnu_properties): Updated. Create the
.plt.sec section instead of the .plt.sec section.