[PATCH 3/4] elf: Avoid linker crash on corrupt .eh_frame section

[H.J. Lu]

Return false on corrupt .eh_frame section.  Cap the .eh_frame section
alignment to the larger of the section size and the pointer size.

PR ld/33453
* elf-bfd.h (ABI_64_P): New.
* elf-eh-frame.c (_bfd_elf_write_section_eh_frame): Return false
on corrupt .eh_frame section.
* elf.c (_bfd_elf_make_section_from_shdr): Limit .eh_frame section
alignment.
* elfxx-mips.c (ABI_64_P): Removed.
* elfxx-sparc.c (ABI_64_P): Likewise.
* elfxx-tilegx.c (ABI_64_P): Likewise.
* elfxx-x86.h (ABI_64_P): Likewise.

-- 
H.J.
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