* libelf.h (struct bfd_elf_section_data): Add field dynindx.

	* libelf.h (struct bfd_elf_section_data): Add field dynindx.
	* elfcode.h (NAME(bfd_elf,size_dynamic_sections)): Don't finalize
	the .dynsym, .dynstr or .hash sections until after the backend
	size_dynamic_sections routine, so that it can add dynamic symbols
	if it wants to.
	* elf32-i386.c (elf_i386_adjust_dynamic_symbol): Don't define the
	symbol to be in the .plt section when generating a shared library
	if it is a defined symbol.
	* elf32-sparc.c (elf32_sparc_adjust_dynamic_symbol): Likewise.
	(elf32_sparc_size_dynamic_sections): When generating a shared
	library, allocate space for a dynamic symbol for each output
	section, storing the index in the dynindx field of the ELF section
	data.  Adjust the other dynindx fields to account for this.
	(elf32_sparc_adjust_dynindx): New static function.
	(elf32_sparc_relocate_section): When copying a reloc into a shared
	library, use the original addend as appropriate.  Convert an
	R_SPARC_32 reloc into an R_SPARC_RELATIVE reloc.  Use the dynamic
	symbol index of the output section, not the normal symbol index.
	(elf32_sparc_finish_dynamic_sections): Don't die if a section does
	not exist when setting the value of the dynamic tags.  Write out
	a dynamic symbol for each output section.