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Implement TLS for CRIS.

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* elf32-cris.c: Include limits.h.
	(TLSHOWTO16): Redefine in terms of and move contents to...
	(TLSHOWTO16X): New macro.
	(TLSHOWTO16S, LGOT_REG_NDX, LGOT_DTP_NDX, LGOT_ALLOC_NELTS_FOR)
	(elf_cris_hash_entry): New macros.
	(cris_elf_howto_table): Make R_CRIS_16_DTPREL,
	R_CRIS_16_GOT_TPREL, R_CRIS_16_TPREL check overflow for signed,
	not unsigned values.
	(cris_info_to_howto_rela): Make r_type a enum elf_cris_reloc_type,
	not unsigned int.
	(struct elf_cris_link_hash_entry): New members reg_got_refcount,
	tprel_refcount, and dtp_refcount.
	(struct elf_cris_link_hash_table): New member dtpmod_refcount.
	(elf_cris_link_hash_newfunc): Initialize new members.
	(elf_cris_link_hash_table_create): Similar.
	(cris_final_link_relocate, elf_cris_reloc_type_class): Use a
	temporary variable when testing the relocation type.
	(cris_elf_gc_mark_hook): Ditto.  Add default case where needed.
	(cris_elf_gc_sweep_hook): Ditto.  Handle reference-counting for
	the new assembly-generated relocs.  Rewrite refcount handling to
	set temporary variables to pointers to reloc-specific variables
	and entry size and common code for the update.
	(additional_relocation_error_msg_count): New variable.
	(cris_elf_relocate_section): Use a function-local variable srelgot
	for the .rela.got section instead of looking it up for every need.
	Make r_type a enum elf_cris_reloc_type, not int.  Actually set
	symname for non-local symbols.  Handle new assembly-generated
	relocs.  For overflow, emit additional messages for the new 16-bit
	relocs as well as R_CRIS_16_GOTPLT and R_CRIS_16_GOT.
	(elf_cris_finish_dynamic_symbol): Use elf_cris_finish_dynamic_symbol
	instead of plain casts.  Check new hash entry member
	reg_got_refcount when checking whether to emit a GOT entry.
	(elf_cris_finish_dynamic_sections): Update head comment to warn
	about emitting relocs here.  Use a temporary variable when testing
	the relocation type.
	(elf_cris_discard_excess_program_dynamics)
	(elf_cris_adjust_gotplt_to_got): Handle reference counting change
	regarding h->reg_got_refcount.
	(cris_elf_check_relocs): Rewrite refcount handling to set
	temporary variables and entry size and common code for the update
	for local symbols.  Use new macro elf_cris_hash_entry.  Adjust
	allocation for change in reference counting of GOT entries for
	local symbols.
	(elf_cris_size_dynamic_sections): Adjust calculated size of
	.got.plt and .rela.got if we need a GOT entry for a
	R_CRIS_DTPMOD relocation.
	(elf_cris_got_elt_size): New function.
	(elf_backend_got_elt_size): Define.
This commit is contained in:
Hans-Peter Nilsson 2008-11-25 04:02:12 +00:00
parent a973d22c63
commit 100382c76e
2 changed files with 910 additions and 77 deletions
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52
bfd/ChangeLog
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@ -1,3 +1,55 @@
2008-11-23 Hans-Peter Nilsson <hp@axis.com>
Implement TLS for CRIS.
* elf32-cris.c: Include limits.h.
(TLSHOWTO16): Redefine in terms of and move contents to...
(TLSHOWTO16X): New macro.
(TLSHOWTO16S, LGOT_REG_NDX, LGOT_DTP_NDX, LGOT_ALLOC_NELTS_FOR)
(elf_cris_hash_entry): New macros.
(cris_elf_howto_table): Make R_CRIS_16_DTPREL,
R_CRIS_16_GOT_TPREL, R_CRIS_16_TPREL check overflow for signed,
not unsigned values.
(cris_info_to_howto_rela): Make r_type a enum elf_cris_reloc_type,
not unsigned int.
(struct elf_cris_link_hash_entry): New members reg_got_refcount,
tprel_refcount, and dtp_refcount.
(struct elf_cris_link_hash_table): New member dtpmod_refcount.
(elf_cris_link_hash_newfunc): Initialize new members.
(elf_cris_link_hash_table_create): Similar.
(cris_final_link_relocate, elf_cris_reloc_type_class): Use a
temporary variable when testing the relocation type.
(cris_elf_gc_mark_hook): Ditto. Add default case where needed.
(cris_elf_gc_sweep_hook): Ditto. Handle reference-counting for
the new assembly-generated relocs. Rewrite refcount handling to
set temporary variables to pointers to reloc-specific variables
and entry size and common code for the update.
(additional_relocation_error_msg_count): New variable.
(cris_elf_relocate_section): Use a function-local variable srelgot
for the .rela.got section instead of looking it up for every need.
Make r_type a enum elf_cris_reloc_type, not int. Actually set
symname for non-local symbols. Handle new assembly-generated
relocs. For overflow, emit additional messages for the new 16-bit
relocs as well as R_CRIS_16_GOTPLT and R_CRIS_16_GOT.
(elf_cris_finish_dynamic_symbol): Use elf_cris_finish_dynamic_symbol
instead of plain casts. Check new hash entry member
reg_got_refcount when checking whether to emit a GOT entry.
(elf_cris_finish_dynamic_sections): Update head comment to warn
about emitting relocs here. Use a temporary variable when testing
the relocation type.
(elf_cris_discard_excess_program_dynamics)
(elf_cris_adjust_gotplt_to_got): Handle reference counting change
regarding h->reg_got_refcount.
(cris_elf_check_relocs): Rewrite refcount handling to set
temporary variables and entry size and common code for the update
for local symbols. Use new macro elf_cris_hash_entry. Adjust
allocation for change in reference counting of GOT entries for
local symbols.
(elf_cris_size_dynamic_sections): Adjust calculated size of
.got.plt and .rela.got if we need a GOT entry for a
R_CRIS_DTPMOD relocation.
(elf_cris_got_elt_size): New function.
(elf_backend_got_elt_size): Define.
2008-11-21 Sterling Augustine <sterling@tensilica.com>
* xtensa-isa.c (xtensa_state_is_shared_or): New function.

935
bfd/elf32-cris.c
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