[PATCH] (version 2) Change MIPS linker stubs to allow for more than 2^15 symbols.

[Eric Christopher]

>
> Tested on mipsel-linux-gnu, mips64-linux-gnu and mipsisa64-elf.
> OK to install?
>
> bfd/
> 	* elfxx-mips.c (mips_elf_link_hash_table): Add function_stub_size.
> 	(STUB_ORI): New macro.
> 	(STUB_LI16U): Fix formatting.
> 	(MIPS_FUNCTION_STUB_SIZE): Delete.
> 	(MIPS_FUNCTION_STUB_MAX_SIZE): Likewise.
> 	(MIPS_FUNCTION_STUB_NORMAL_SIZE): New macro.
> 	(MIPS_FUNCTION_STUB_BIG_SIZE): Likewise.
> 	(_bfd_mips_elf_adjust_dynamic_symbol): Use htab->function_stub_size
> 	instead of MIPS_FUNCTION_STUB_SIZE.
> 	(count_section_dynsyms): New function, split out from
> 	_bfd_mips_elf_final_link.
> 	(_bfd_mips_elf_always_size_sections): Get a worst-case estimate
> 	of the number of dynamic symbols needed and use it to set up
> 	function_stub_size.  Use function_stub_size rather than
> 	MIPS_FUNCTION_STUB_SIZE to determine the size of the stub section.
> 	Use 16-byte stubs for 0x10000 dynamic symbols.
> 	(_bfd_mips_elf_size_dynamic_sections): Use htab->function_stub_size
> 	instead of MIPS_FUNCTION_STUB_SIZE.  Fix formatting.
> 	(_bfd_mips_elf_finish_dynamic_symbol): Likewise.  Change the
> 	size of the stub buffer from MIPS_FUNCTION_STUB_MAX_SIZE to
> 	MIPS_FUNCTION_STUB_BIG_SIZE.  Tweak the check for unhandled  
> dynindxes.
> 	Use MIPS_FUNCTION_STUB_BIG_SIZE rather than a hard-coded 20.
> 	Use STUB_ORI rather than STUB_LI16U for big stubs.
> 	(_bfd_mips_elf_link_hash_table_create): Initialize  
> function_stub_size.
> 	(_bfd_mips_elf_final_link): Use count_section_dynsyms.
>
> ld/testsuite/
> 	* ld-mips-elf/stub-dynsym-1.s,
> 	* ld-mips-elf/stub-dynsym-1.ld,
> 	* ld-mips-elf/stub-dynsym-1-7fff.d,
> 	* ld-mips-elf/stub-dynsym-1-8000.d,
> 	* ld-mips-elf/stub-dynsym-1-fff0.d,
> 	* ld-mips-elf/stub-dynsym-1-10000.d,
> 	* ld-mips-elf/stub-dynsym-1-2fe80.d: New test.
> 	* ld-mips-elf/mips-elf.exp: Run it.

OK.

-eric