be placed towards the front of local GOT space, while entries addressed
via a 32-bit index are placed towards the rear.
Provided that there are fewer than ~16K local GOT entries addressed via
a 16-bit index in total, this should eliminate any relocation overflows
caused by such GOT entries being allocated beyond the addressable range.
bfd/
* elfxx-mips.c (struct mips_got_info): Delete assigned_gotno
field. Add assigned_low_gotno and assigned_high_gotno fields.
(mips_elf_create_local_got_entry): Update out-of-space condition.
Set index of new GOT entry to assigned_low_gotno if required by
the current relocation, else set it to assigned_high_gotno.
(mips_elf_set_global_gotidx): Replace uses of assigned_gotno
with assigned_low_gotno.
(mips_elf_multi_got): Initialize assigned_low_gotno and
assigned_high_gotno in secondary GOTs. Use assigned_low_gotno
in place of assigned_gotno when handling global GOT entries.
(mips_elf_lay_out_got): Initialize assigned_low_gotno and
assigned_high_gotno.
(_bfd_mips_elf_finish_dynamic_sections): Account for a possible
gap in the middle of local GOT space.
ld/testsuite/
* ld-mips-elf/elf-rel-xgot-n32.d: Update for new GOT layout.
* ld-mips-elf/elf-rel-xgot-n32-embed.d: Likewise.
* ld-mips-elf/elf-rel-xgot-n64.d: Likewise.
* ld-mips-elf/elf-rel-xgot-n64-embed.d: Likewise.
* ld-mips-elf/elf-rel-xgot-n64-linux.d: Likewise.
* elfxx-mips.c (mips_got_entry): Adjust commentary.
(mips_elf_create_local_got_entry): If given a symbol, check that it
has been assigned to the local part of the GOT.
(mips_elf_count_got_symbols): Take the bfd_link_info as argument
instead of the master GOT. Put all locally-binding symbols in
the local area.
(mips_elf_make_got_per_bfd): Use global_got_area to decide whether
a symbol lives in the local or global area.
(mips_elf_local_relocation_p): Remove check_forced argument and
retain only the !check_forced behavior.
(mips_elf_calculate_relocation): Adjust call accordingly.
Use global_got_area to decide whether an output relocation
should be local or global. Explicitly decay R_MIPS_GOT_PAGE
into R_MIPS_GOT_DISP where appropriate. Fix selection of
local vs. global semantics for R_MIPS*_26. Remove redundant
reevaluation of what is stored in was_local_p.
(mips_elf_create_dynamic_relocation): Use global_got_area to decide
whether the relocation should be against a global or local symbol.
(mips_elf_lay_out_got): Update the GOT traversal after the above
change to mips_elf_count_got_symbols.
(mips_elf_adjust_addend): Adjust call to mips_elf_local_relocation_p.
(_bfd_mips_elf_relocate_section): Likewise.
(_bfd_mips_elf_finish_dynamic_symbol): Use global_got_area to decide
whether the symbol has a global got entry.
(_bfd_mips_vxworks_finish_dynamic_symbol): Likewise.
ld/testsuite/
* ld-mips-elf/elf-rel-got-n32.d: Swap two local GOT entries
and remove some duplication between the global and local GOT
entries. Adjust GP offsets accordingly.
* ld-mips-elf/elf-rel-got-n64-linux.d: Likewise.
* ld-mips-elf/elf-rel-xgot-n32.d: Reorder GOT entries and update
GP offsets accordingly.
* ld-mips-elf/elf-rel-xgot-n64-linux.d: Likewise.
* ld-mips-elf/mips16-pic-1.gd: Move all global GOT entries to
the local GOT.
* ld-mips-elf/mips16-pic-1.dd: Update GP offsets accordingly.
* ld-mips-elf/multi-got-no-shared.d: Adjust GP setup for
smaller GOT sizes.
* elfxx-mips.c (MIPS_ELF_GNU_GOT1_MASK): New macro.
(_bfd_mips_elf_finish_dynamic_sections): Use it instead of 0x80000000.
ld/testsuite/
* ld-mips-elf/elf-rel-got-n64-linux.d: Expect bit 63 rather than
bit 31 of the second GOT entry to be set.
* ld-mips-elf/elf-rel-got-n64.d: Likewise.
* ld-mips-elf/elf-rel-xgot-n64-linux.d: Likewise.
* ld-mips-elf/elf-rel-xgot-n64.d: Likewise.
* ld-mips-elf/elf-rel-got-n32.d: Adjust page gap from 0x100000
to 0x10000. Move .reginfo before .text and bump .text addresses
by 0x10 to make room. Move data segment down by 0x10 bytes to
account for new size of text segment.
* ld-mips-elf/elf-rel-xgot-n32.d: Likewise.
* ld-mips-elf/elf-rel-got-n64-linux.d: Adjust page gap from
0x100000 to 0x10000.
* ld-mips-elf/elf-rel-xgot-n64-linux.d: Likewise.
* elfxx-mips.c (mips_elf_calculate_relocation): Use
_bfd_elf_symbol_refs_local_p to decide whether to decay
a GOT_PAGE/GOT_OFST pair to GOT_DISP/addend.
(_bfd_mips_elf_check_relocs): Add a global GOT entry for GOT_PAGE
relocs if the symbol wasn't defined by a regular object file.
Don't check the symbol's dynindx.
ld/testsuite/
* ld-mips/elf/elf-rel-xgot-{n32,n64-linux}.d: Update after 2004-02-02
changes to the way large constants are added.
* ld-mips/elf/elf-rel-got-{n32,n64-linux}.d: Likewise. Adjust order
of GOT entries after today's change to the handling of GOT_PAGE
relocations.
Matthew Fortune
Kwok Cheung Yeung
Maciej W. Rozycki
Richard Sandiford
Daniel Jacobowitz
Thiemo Seufer