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2 Commits

Author SHA1 Message Date
Richard Sandiford
23cc69b663 bfd/ 
* elfxx-mips.c (mips_got_info): Add a "reloc_only_gotno" field.
	(mips_elf_got_section): Delete.
	(mips_elf_sort_hash_table): Use g->reloc_only_gotno to decide
	how many reloc-only entries there are.
	(mips_elf_count_got_symbols): Adjust g->reloc_only_gotno as
	well as g->global_gotno.
	(mips_elf_make_got_per_bfd): Initialize reloc_only_gotno.
	(mips_elf_multi_got): Likewise.  Use gg->reloc_only_gotno
	rather than gg->assigned_gotno to store the number of
	reloc-only GOT entries.
	(mips_elf_create_got_section): Remove the MAYBE_EXCLUDE parameter.
	Initialize reloc_only_gotno.
	(mips_elf_calculate_relocation): Check htab->got_info instead of
	dynobj when deciding whether to call mips_elf_adjust_gp,
	(_bfd_mips_elf_create_dynamic_sections): Adjust the call
	to mips_elf_create_got_section.
	(mips_elf_record_relocs): Likewise.  Remove redundant
	"dynobj == NULL" code.  Do not use mips_elf_create_got_section
	or mips_elf_record_global_got_symbol for R_MIPS_32, R_MIPS_REL32
	and R_MIPS_64; limit global_got_area to GGA_RELOC_ONLY instead.
	(_bfd_mips_elf_finish_dynamic_symbol): Use htab->sgot instead
	of mips_elf_got_section.
	(_bfd_mips_vxworks_finish_dynamic_symbol): Likewise.
	(_bfd_mips_elf_finish_dynamic_sections): Likewise.
	Move the initial assignment of G to the block that uses it;
	it is used for an unrelated purpose later.

ld/testsuite/
	* ld-mips-elf/tls-hidden4.got, ld-mips-elf/tls-hidden4.r: We have
	removed an unused GOT entry that was allocated for the R_MIPS_32
	relocation against "undef", so adjust addresses down by 4 bytes.
	* ld-mips-elf/got-dump-1.d, ld-mips-elf/got-dump-2.d: We have
	changed the order of the GOT entries so that reloc-only ones
	come last.  "undef" is only referred to by dynamic relocations,
	so it now comes after "glob".
	* ld-mips-elf/mips16-pic-2.dd, ld-mips-elf/mips16-pic-2.gd,
	ld-mips-elf/mips16-pic-2.nd, ld-mips-elf/mips16-pic-2.rd: We have
	removed two unused local GOT entries that were originally created
	as global entries for the hidden symbols "used2" and "used3".
	"used4" and "used5" are only referred to by relocations, so they
	now come after "used6" and "used7".
 2008-08-07 20:01:14 +00:00
Richard Sandiford
738e53487d bfd/ 
* reloc.c (BFD_RELOC_MIPS16_GOT16, BFD_RELOC_MIPS16_CALL16): Declare.
	* libbfd.h, bfd-in2.h: Regenerate.
	* elf32-mips.c (elf_mips16_howto_table_rel): Fill in reserved
	R_MIPS16_GOT16 and R_MIPS16_CALL16 entries.
	(mips16_reloc_map): Add mappings.
	* elf64-mips.c (mips16_elf64_howto_table_rel): Fill in reserved
	R_MIPS16_GOT16 and R_MIPS16_CALL16 entries.
	(mips16_elf64_howto_table_rela): Likewise.
	(mips16_reloc_map): Add mappings.
	* elfn32-mips.c (elf_mips16_howto_table_rel): Fill in reserved
	R_MIPS16_GOT16 and R_MIPS16_CALL16 entries.
	(elf_mips16_howto_table_rela): Likewise.
	(mips16_reloc_map): Add mappings.
	* elfxx-mips.c (mips_elf_create_shadow_symbol): New function.
	(section_allows_mips16_refs_p): Likewise.
	(mips16_stub_symndx): Likewise.
	(mips_elf_check_mips16_stubs): Treat the data argument as a
	bfd_link_info.  Mark every dynamic symbol as needing MIPS16 stubs
	and create a "shadow" symbol for the original MIPS16 definition.
	(mips16_reloc_p, got16_reloc_p, call16_reloc_p, hi16_reloc_p)
	(lo16_reloc_p, mips16_call_reloc_p): New functions.
	(_bfd_mips16_elf_reloc_unshuffle): Use mips16_reloc_p to generalize
	relocation checks.
	(_bfd_mips16_elf_reloc_shuffle): Likewise.
	(_bfd_mips_elf_lo16_reloc): Handle R_MIPS16_GOT16.
	(mips_elf_got16_entry): Add comment.
	(mips_elf_calculate_relocation): Use hi16_reloc_p,
	lo16_reloc_p, mips16_call_reloc_p, call16_reloc_p and got16_reloc_p
	to generalize relocation checks.  Use section_allows_mips16_refs_p
	instead of mips16_stub_section_p.   Handle R_MIPS16_CALL16 and
	R_MIPS16_GOT16, allowing the former to refer directly to a
	MIPS16 function if its stub is not needed.
	(mips16_stub_section_p): Delete.
	(_bfd_mips_elf_symbol_processing): Convert odd-valued function
	symbols into even MIPS16 symbols.
	(mips_elf_add_lo16_rel_addend): Use mips16_reloc_p to generalize
	a relocation check.
	(_bfd_mips_elf_check_relocs): Calculate "bed" and "rel_end"
	earlier in the function.  Use mips16_stub_symndx to identify
	the target function.  Avoid out-of-bounds accesses when the
	stub has no relocations; report an error instead.  Use
	section_allows_mips16_refs_p instead of mips16_stub_section_p.
	Use mips16_call_reloc_p and got16_reloc_p to generalize relocation
	checks.  Handle R_MIPS16_CALL16 and R_MIPS16_GOT16.  Don't create
	dynamic relocations for absolute references to __gnu_local_gp.
	(_bfd_mips_elf_always_size_sections): Pass a bfd_link_info as
	the argument to mips_elf_check_mips16_stubs.  Generalize comment.
	(_bfd_mips_elf_relocate_section): Use hi16_reloc_p and got16_reloc_p
	to generalize relocation checks.
	(_bfd_mips_elf_finish_dynamic_symbol): If a dynamic MIPS16 function
	symbol has a non-MIPS16 stub, redirect the symbol to the stub.
	Fix an overly long line.  Don't give dynamic symbols type STO_MIPS16.
	(_bfd_mips_elf_gc_sweep_hook): Handle R_MIPS16_CALL16 and
	R_MIPS16_GOT16.

gas/
	* config/tc-mips.c (mips16_reloc_p, got16_reloc_p, hi16_reloc_p)
	(lo16_reloc_p): New functions.
	(reloc_needs_lo_p): Use hi16_reloc_p and got16_reloc_p to
	generalize relocation checks.
	(matching_lo_reloc): New function.
	(fixup_has_matching_lo_p): Use it.
	(mips16_mark_labels): Don't clobber a symbol's visibility.
	(append_insn): Use hi16_reloc_p and lo16_reloc_p.
	(mips16_ip): Handle BFD_RELOC_MIPS16_GOT16 and BFD_RELOC_MIPS16_CALL16.
	(md_apply_fix): Likewise.
	(mips16_percent_op): Add %got and %call16.
	(mips_frob_file): Use got16_reloc_p to generalize relocation checks.
	Use matching_lo_reloc.
	(mips_force_relocation): Use hi16_reloc_p and lo16_reloc_p to
	generalize relocation checks.
	(mips_fix_adjustable): Use lo16_reloc_p to generalize relocation
	checks.

gas/testsuite/
	* gas/mips/elf-rel8-mips16.d, gas/mips/elf-rel8-mips16.s,
	* gas/mips/elf-rel9-mips16.d, gas/mips/elf-rel9-mips16.s,
	* gas/mips/elf-rel13-mips16.d, gas/mips/elf-rel13-mips16.s: New tests.
	* gas/mips/mips.exp: Run them.

ld/testsuite/
	* ld-mips-elf/mips16-local-stubs-1.d: Remove stub_for_h3,
	which was only referenced by the .pdr section, and was not
	actually needed by code.
	* ld-mips-elf/mips16-intermix.d: Remove unused static function stubs.
	* ld-mips-elf/mips16-pic-1a.s,
	ld-mips-elf/mips16-pic-1b.s,
	ld-mips-elf/mips16-pic-1-dummy.s,
	ld-mips-elf/mips16-pic-1.dd,
	ld-mips-elf/mips16-pic-1.gd,
	ld-mips-elf/mips16-pic-1.inc,
	ld-mips-elf/mips16-pic-1.ld,
	ld-mips-elf/mips16-pic-2a.s,
	ld-mips-elf/mips16-pic-2b.s,
	ld-mips-elf/mips16-pic-2.ad,
	ld-mips-elf/mips16-pic-2.dd,
	ld-mips-elf/mips16-pic-2.gd,
	ld-mips-elf/mips16-pic-2.nd,
	ld-mips-elf/mips16-pic-2.rd: New tests.
	* ld-mips-elf/mips-elf.exp: Run them.
 2008-08-06 19:44:47 +00:00