gcc:
* config/sh/sh.h (EXTRA_SPECS): Add subtarget_asm_relax_spec and
subtarget_asm_isa_spec.
(SUBTARGET_ASM_RELAX_SPEC, SUBTARGET_ASM_ISA_SPEC): Define.
(ASM_SPEC): Define as SH_ASM_SPEC.
(SH_ASM_SPEC): New; take the role of ASM_SPEC, but safe from svr4.h.
Use subtarget_asm_relax_spec and subtarget_asm_isa_spec.
* config/sh/elf.h (ASM_SPEC): Use SH_ASM_SPEC.
(SUBTARGET_ASM_ISA_SPEC): Undef / define.
gcc/testsuite:
gcc.dg/sh-relax.c: New test.
include/elf:
* sh.h (EF_SH_MERGE_MACH): Make sure SH2E & SH3/SH3E merge to SH3E,
and SH2E & SH4 merge to SH4, not SH2E.
gas:
* config/tc-sh.c (sh_dsp): Replace with preset_target_arch.
(md_begin): Use preset_target_arch.
(md_longopts): Make isa option unconditional.
(md_parse_option): Make OPTION_DSP and OPTION_ISA sh4 / any
set preset_target_arch.
(md_apply_fix3): If BFD_ASSEMBLER, adjust SWITCH_TABLE fixups
by -S_GET_VALUE (fixP->fx_subsy).
(tc_gen_reloc): For SWITCH_TABLE fixups, the symbol is fixp->fx_subsy,
and the addend is 0.
Adjust addend of R_SH_IND12W relocations by fixp->fx_offset - 4.
* config/tc-sh.h (TC_FORCE_RELOCATION_SUB_LOCAL): Define.
bfd:
elf32-sh.c (sh_elf_howto_tab): Make R_SH_IND12W into an ordinary
relocation (no special function), and make it non-partial_inplace.
(sh_elf_relax_section): When creating a bsr, use a consistent value
no matter if the symbol is extern or not; set addend to -4.
Don't swap load / non-load instructions for SH4.
(sh_elf_relax_delete_bytes): In R_SH_IND12W case, check the offset
rather than if the symbol is external to determine if adjusting the
offset makes sense. Adjust the addend too if appropriate.
(sh_elf_relocate_section): In R_SH_IND12W, don't fiddle with the
relocation.
(elfNN_ia64_check_relocs): Set it.
(allocate_global_data_got): Check it.
(allocate_local_got): Likewise.
(allocate_dynrel_entries): Likewise.
(elfNN_ia64_relax_ldxmov): New.
(elfNN_ia64_relax_section): Handle LTOFF22X, LDXMOV.
(elfNN_ia64_choose_gp): Split out from ...
(elfNN_ia64_final_link): ... here.
section flags before concluding that we've already been called.
Don't use register keyword.
(_bfd_elf_create_dynamic_sections): Don't use register keyword.
(_bfd_elf_create_linker_section): Formatting.
(allocate_dynrelocs): LD and GD relocs against the same sym need
separate GOT entries.
(ppc_elf_relocate_section): Correct GOT handling for multiple GOT
entries per symbol.
(ppc64_elf_check_relocs): Use it. Correct comment. Move SEC_ALLOC
test.
(ppc64_elf_adjust_dynamic_symbol): Use ELIMINATE_COPY_RELOCS.
(WILL_CALL_FINISH_DYNAMIC_SYMBOL): Pass SHARED instead of INFO.
(allocate_dynrelocs): Adjust WILL_CALL_FINISH_DYNAMIC_SYMBOL uses,
and optimize. Use ELIMINATE_COPY_RELOCS.
(ppc64_elf_relocate_section): Likewise.
(ppc_elf_copy_indirect_symbol): Copy pc_count field.
(ELIMINATE_COPY_RELOCS): Define.
(ppc_elf_adjust_dynamic_symbol): Convert copy relocs to dynamic.
(WILL_CALL_FINISH_DYNAMIC_SYMBOL): Pass SHARED instead of INFO.
(MUST_BE_DYN_RELOC): Define.
(allocate_dynrelocs): Adjust WILL_CALL_FINISH_DYNAMIC_SYMBOL uses,
and optimize. Trim dyn_relocs.
(ppc_elf_check_relocs): Don't generate dyn_relocs when we know they'll
not be used. Do generate dyn_relocs for copy reloc avoidance. Keep
track of pc_rel dyn relocs.
(ppc_elf_relocate_section): Remove "will_become_local". Adjust
WILL_CALL_FINISH_DYNAMIC_SYMBOL use. Trim dyn relocs as per
allocate_dynrelocs. Don't recalculate "sec".
* elf64-ppc.c (ppc64_elf_tls_optimize): Decrement tlsld_got.refcount
on invalid LD relocs.
(allocate_dynrelocs): Invalid LD relocs don't use tlsld_got entry.
(ppc64_elf_relocate_section): Unify new handling of LD relocs and
tlsld_got entry. Use IS_PPC64_TLS_RELOC.
* elf32-ppc.c: Include elf32-ppc.h.
(NOP, CROR_151515, CROR_313131, TP_OFFSET, DTP_OFFSET): Define.
(struct ppc_elf_link_hash_entry): Rename "root" to "elf". Adjust uses.
Add "tls_mask" field.
(TLS_GD, TLS_LD, TLS_TPREL, TLS_DTPREL, TLS_TLS, TLS_TPRELGD): Define.
(struct ppc_elf_link_hash_table): Rename "root" to "elf". Adjust uses.
Add got, relgot, plt, relplt, dynbss, relbss, dynsbss, relsbss,
sdata, sdata2, tls_sec, tls_get_addr, tlsld_got fields.
Make use of htab shortcuts throughout file.
(ppc_elf_link_hash_newfunc): Init tls_mask field.
(ppc_elf_link_hash_table_create): Init new fields.
(ppc_elf_copy_indirect_symbol): Copy tls_mask.
(ppc_elf_howto_raw): Add tls relocs.
(ppc_elf_reloc_type_lookup): Handle them.
(ppc_elf_unhandled_reloc): New function.
(ppc_elf_create_got): Stash got section pointer in hash table,
return status. Make .rela.got too.
(ppc_elf_create_dynamic_sections): Stash section pointers in htab.
(ppc_elf_adjust_dynamic_symbol): Only set up copy relocs when
NON_GOT_REF set. Don't allocate space in .plt here..
(allocate_dynrelocs): ..do so here instead, properly ref-counting and
not allocating plt entries unnecessarily. Allocate got entries here.
(WILL_CALL_FINISH_DYNAMIC_SYMBOL): Define.
(ppc_elf_size_dynamic_sections): Allocate local got entries. Pass
"info" during allocate_dynrelocs hash traversal. Use htab section
shortcuts rather than searching for named sections. Get rid of
"plt" and "strip" booleans.
(update_local_sym_info, bad_shared_reloc): New functions.
(ppc_elf_check_relocs): Handle TLS relocs. Move .rela.got creation to
ppc_elf_create_got. Don't mark got or plt reloc syms dynamic, do so
in allocate_dynreloc. Use update_local_sym_info and bad_shared_reloc.
Disallow R_PPC_EMB_RELSDA, R_PPC_EMB_NADDR32, R_PPC_EMB_NADDR16,
R_PPC_EMB_NADDR16_LO, R_PPC_EMB_NADDR16_HI and R_PPC_EMB_NADDR16_HA
in shared libs. R_PPC_PLTREL32 is a plt reloc too. Refcount all
relocs that might use a plt entry. Set NON_GOT_REF too.
Enumerate all do-nothing relocs.
(ppc_elf_gc_sweep_hook): Simplify removal of dynrelocs. Handle
tls relocs and all plt relocs.
(ppc_elf_tls_setup, ppc_elf_tls_optimize): New functions.
(ppc_elf_finish_dynamic_symbol): Don't build got entries here.
(ppc_elf_finish_dynamic_sections): Rewrite tag code using htab
shortcuts.
(ppc_elf_relocate_section): Tidy. Handle TLS relocs. Use
bfd_elf_local_sym_name. Simplify unresolved reloc code. Build got
entries and got relocs here. Warn on non-zero got reloc addend.
Split out branch taken/not taken reloc code into a separate switch
and correct offset calculation. Allow BRTAKEN/BRNTAKEN dynamic relocs.
Split out HA reloc adjustments to separate switch statement. Don't
warn on reloc overflow if we've already warned about undefined.
Don't rebuild sym name when reporting errors. Report all possible
errors from _bfd_final_link_relocate.
(bfd_elf32_bfd_final_link): Don't define.
(ppc64_elf_copy_indirect_symbol): Merge tls_mask too.
(ppc64_elf_gc_sweep_hook): Simplify removal of dyn_relocs.
(allocate_dynrelocs): Don't treat undefined and undefweak specially.
(ppc_size_one_stub): Fix warning, and tighten plt entry check.
(group_sections): Don't share a stub section if stubs are for a large
section. Adjust comment.
(ppc64_elf_size_stubs): Roughly double the size left for stubs if
!stubs_always_before_branch.
(ppc64_elf_relocate_section): Initialize tlsld GOT entry once. Don't
treat undefined and undefweak specially when processing dyn relocs.
(elf_sh_link_hash_entry): Remove tls_tpoff32 field.
(sh_elf_link_hash_newfunc): Remove the initialization of
tls_tpoff32 field.
(allocate_dynrelocs): Keep dyn_relocs if it includes the entry
for which tls_tpoff32 flag is set.
(sh_elf_relocate_section): Covert to LE only if the dyn_relocs
of the symbol includes the entry matched with the input_section
and having tls_tpoff32 flag on. When linking statically, set
symbol index of R_SH_TLS_TPOFF32 relocation to zero if the symbol
is defined in this executable.
(sh_elf_check_relocs): Set tls_tpoff32 flag appropriately.
variables, structure fields or function params to tls_mask or
similar to better reflect usage.
(struct got_entry): Comment.
(struct ppc_link_hash_entry): Expand comment, and renumber TLS_*.
(get_tls_mask): Rename from get_tls_type.
(TLS_GD): ..define this instead and update all uses.
(TLS_TPRELGD): Define.
(ppc64_elf_link_hash_table_create): Tweak initialization of
init_refcount and init_offset.
(ppc64_elf_check_relocs): Add one extra element to t_symndx array.
Mark second slot of GD or LD toc entries.
(get_tls_type): Return an int. Distinguish toc GD and LD entries
from other tls types.
(ppc64_elf_tls_setup): New function, split out from..
(ppc64_elf_tls_optimize): ..here. Don't optimize when symbols are
defined in a dynamic object. Fix LD optimization. Don't set TLS_TPREL
on GD->IE optimization, use TLS_TPRELGD instead. Use get_tls_type
return value to properly decide whether toc GD and LD entries can
optimize away __tls_get_addr call. Check next reloc after DTPMOD64
to determine GD or LD rather than looking at TLS_LD flag. Don't
attempt to adjust got entry tls_type here..
(allocate_dynrelocs): ..instead, adjust got entry tls_type here, and
look for possible merges.
(ppc64_elf_size_dynamic_sections): Adjust local got entries for
optimization.
(ppc64_elf_size_stubs): Tweak __tls_get_addr fudge.
(ppc64_elf_relocate_section): Rename some vars to better reflect usage.
Make use of return value from get_tls_type to properly detect GD and
LD optimizations. Split tlsld/gd hi/ha from lo/ds case. Don't
handle tls_get_addr removal when looking at REL24 relocs, do it when
looking at the previous reloc. Check reloc after DTPMOD64 to determine
GD or LD.
* elf64-ppc.h (ppc64_elf_tls_setup): Declare.
(read_value): Add parameter is_signed, use signed extraction if
the value is signed.
(_bfd_elf_write_section_eh_frame): Pass signed flag of the
encoding to read_value.
* libbfd.h: Regenerate.
* bfd-in2.h: Regenerate.
* elf64-ppc.c (TP_OFFSET, DTP_OFFSET): Declare.
(ppc64_elf_howto_raw): Add TLS howto's. Adjust R_PPC64_NONE to be
against a 32 bit field.
(ppc64_elf_reloc_type_lookup): Handle TLS relocs.
(_ppc64_elf_section_data): Add t_symndx and comments.
(ppc64_elf_section_data): Use elf_section_data macro.
(ppc64_elf_new_section_hook): American spelling.
(struct got_entry, struct plt_entry): New.
(MUST_BE_DYN_RELOC): Rename from IS_ABSOLUTE_RELOC.
(struct ppc_stub_hash_entry): Add "addend" field.
(struct ppc_link_hash_entry): Add "tls_type".
(TLS_TLS, TLS_GD_LD, TLS_LD, TLS_TPREL, TLS_DTPREL,
TLS_EXPLICIT): Define.
(struct ppc_link_hash_table): Add tls_sec, tls_get_addr, tlsld_got.
(link_hash_newfunc): Init new fields.
(ppc64_elf_link_hash_table_create): Likewise. Set init_relcount and
init_offset to NULL.
(ppc64_elf_copy_indirect_symbol): Copy got and plt info. Don't call
_bfd_elf_link_hash_copy_indirect, rather insert relevant code from
there.
(update_local_sym_info, update_plt_info): New functions.
(ppc64_elf_check_relocs): Use them. Handle TLS relocs. Adjust GOT
handling to use got.glist rather than got.refcount. Likewise for PLT.
(ppc64_elf_gc_sweep_hook): Handle TLS relocs, new GOT and PLT lists.
(func_desc_adjust): Adjust for new PLT list.
(ppc64_elf_adjust_dynamic_symbol): Likewise.
(get_sym_h, get_tls_type): New functions.
(ppc64_elf_edit_opd): Remove unused variable. Use get_sym_h.
(ppc64_elf_tls_optimize): New function.
(allocate_dynrelocs): Adjust for new PLT and GOT lists. Allocate
TLS relocs.
(ppc64_elf_size_dynamic_sections): Likewise.
(ppc_type_of_stub): Adjust for new PLT list.
(ppc_build_one_stub): Likewise.
(ppc64_elf_size_stubs): Likewise. Use get_sym_h. Treat __tls_get_addr
calls specially.
(ppc64_elf_relocate_section): Adjust for new GOT and PLT lists. Handle
TLS relocs. Report local syms using bfd_elf_local_sym_name. Don't
init GOT entries that have a reloc. Generate GOT relocs here..
(ppc64_elf_finish_dynamic_symbol): ..not here. Adjust for PLT list.
* elf64-ppc.h (ppc64_elf_tls_optimize): Declare.
(elf_m68k_link_hash_traverse): Remove.
(elf_m68k_link_hash_newfunc): Use struct bfd_hash_entry and
elf_m68k_hash_entry instead of struct elf_m68k_link_hash_entry to
reduce casting.
(elf_m68k_check_relocs): Use elf_m68k_hash_entry instead of
casting.
(elf_m68k_size_dynamic_sections): Use elf_link_hash_traverse
instead of elf_m68k_link_hash_traverse.
(elf_m68k_discard_copies): Change first parameter to pointer to
struct elf_link_hash_entry and use elf_m68k_hash_entry when struct
elf_m68k_link_hash_entry is needed.
(struct elf_link_hash_entry): Add "glist" and "plist" fields to
"got" union, and declare as gotplt_union. Use gotplt_uinion for
"plt" field.
(struct elf_link_hash_table): Make "init_refcount" a gotplt_union.
Add "init_offset" field.
(struct elf_obj_tdata <local_got>): Add "struct got_entry **" to union.
(elf_local_got_ents): Declare.
* elf.c (_bfd_elf_link_hash_newfunc): Adjust initialization of "got"
and "plt".
(_bfd_elf_link_hash_hide_symbol): Use "init_offset".
(_bfd_elf_link_hash_table_init): Set "init_offset".
* elflink.h (NAME(bfd_elf,size_dynamic_sections)): Set init_refcount
from init_offset.
(elf_adjust_dynamic_symbol): Set plt and got offsets using init_offset.
* elf.c (bfd_elf_local_sym_name): Split out from..
(group_signature): ..here.
* elf-bfd.h (bfd_elf_local_sym_name): Declare.
(struct mips_got_entry): Make symndx and gotidx signed. Moved
addend into union along with address and link hash entry.
(struct mips_got_info): Added bfd2got and next.
(struct mips_elf_hash_sort_data): Added max_unref_got_dynindx.
(mips_elf_got_section, mips_elf_create_got_section): Use
SEC_EXCLUDE bit to tell whether we really need the got
section. Take boolean arguments to disregard an excluded
section, or to create it as excluded. Adjust all callers.
Use mips_elf_got_section all over.
(mips_elf_local_got_index, mips_elf_got_page,
mips_elf_got16_entry): Take input bfd as argument, and pass it
on to mips_elf_create_local_got_entry.
(mips_elf_global_got_index, mips_elf_create_local_got_entry):
Take input bfd as argument, and manage entries in the
appropriate GOT.
(mips_elf_got_offset_from_index): Take input bfd as argument,
and use it to adjust the GP offset of the bfd.
(mips_elf_sort_hash_table, mips_elf_sort_hash_table_f): Move
unreferenced GOT entries of global symbols to the end.
(mips_elf_record_global_got_symbol): Take input bfd as
argument. Add entries to the master GOT hash table.
(struct mips_elf_bfd2got_hash): New.
(struct mips_elf_got_per_bfd_arg): New.
(struct mips_elf_set_global_got_offset_arg): New.
(mips_elf_hash_bfd_vma, mips_elf_multi_got_entry_hash,
mips_elf_multi_got_entry_eq, mips_elf_bfd2got_entry_hash,
mips_elf_bfd2got_entry_eq, mips_elf_make_got_per_bfd,
mips_elf_merge_gots, mips_elf_set_global_got_offset,
mips_elf_resolve_final_got_entry,
mips_elf_resolve_final_got_entries, mips_elf_adjust_gp,
mips_elf_got_for_ibfd): New functions.
(ELF_MIPS_GP_OFFSET): Don't depend on SGI_COMPAT.
(MIPS_ELF_GOT_MAX_SIZE): New macro.
(STUB_LW): Generate 64-bit stub regardless of SGI_COMPAT.
(mips_elf_got_entry_hash): Take new fields into account. Use
mips_elf_hash_bfd_vma.
(mips_elf_got_entry_eq): Take new fields into account.
(mips_elf_create_got_section): Initialize new fields.
(mips_elf_calculate_relocation): Pass input_bfd to functions
that now take it. Adjust gp for the input_bfd.
(mips_elf_allocate_dynamic_relocation,
mips_elf_create_dynamic_relocation,
_bfd_mips_elf_create_dynamic_sections): Use...
(mips_elf_rel_dyn_section): New function. Borrow code from...
(_bfd_mips_elf_check_relocs): Pass input_bfd to functions that
now take it. Create the got section if needed, even if
excluded, before recording a global got symbol. Move some
code to...
(mips_elf_record_local_got_symbol): New fn.
(_bfd_mips_elf_size_dynamic_sections): Disable combreloc.
Compute multi-got global entries offsets. Move GOT code to...
(_bfd_mips_elf_always_size_sections): Call mips_elf_multi_got
if the GOT is too big.
(_bfd_mips_elf_finish_dynamic_symbol): Set got entry of
undefweak symbol to zero. Generate dynamic relocations for
non-primary GOT entries for global symbols.
(_bfd_mips_elf_finish_dynamic_sections): Handle multi-got
case. Generate dynamic relocations for local got entries.
Sort dynamic relocations on N64 too, using...
(sort_dynamic_relocs_64): New fns.
(_bfd_mips_elf_hide_symbol): Adjust multi-got counters.
(_bfd_mips_elf_merge_private_bfd_data): Ignore EF_MIPS_XGOT.
(struct alpha_elf_link_hash_entry): Add plt_old_section, plt_old_value.
(elf64_alpha_adjust_dynamic_symbol): Set them.
(elf64_alpha_size_plt_section_1): Reset them when plt entry removed.
(elf64_alpha_relax_tls_get_addr): Handle LDM relocs. Frob the
symbol index when relaxing LDM to TPREL.
(elf64_alpha_relax_section): Likewise. Allow relaxation of GD
relocs, even if the target isn't locally defined.
(elf64_alpha_check_relocs): Frob LDM reloc symndx to zero.
(elf64_alpha_relocate_section): Likewise. Force TP-relative
relocs vs symndx 0 to the tp base.
H.J. Lu
Alan Modra
Joern Rennecke
Nick Clifton
Thiemo Seufer
Richard Henderson
Andrew Cagney
Jakub Jelinek
Kaz Kojima
Andreas Schwab
Alexandre Oliva
Martin Schwidefsky