* elf32-ppc.c (ppc_elf_relocate_section): Delete __tls_get_addr
symbol reference from relocs belonging to calls that are
optimized away.
* elf64-ppc.c (ppc64_elf_relocate_section): Likewise.
* elf64-ppc.c (follow_link, elf_follow_link, ppc_follow_link): New
functions. Use throughout.
(ppc64_elf_copy_indirect_symbol): Set direct symbol "oh" field
from indirect symbol.
(lookup_fdh): Rename from get_fdh. Follow indirect sym links.
(add_symbol_adjust): Simplify.
(defined_code_entry, defined_func_desc): New functions.
(ppc64_elf_gc_keep): Follow indirect sym links. Use defined_code_entry.
(ppc64_elf_gc_mark_dynamic_ref): Use defined_func_desc and
defined_code_entry to follow indirect sym links.
(ppc64_elf_gc_mark_hook, func_desc_adjust): Likewise.
(ppc_type_of_stub): Follow indirect sym links.
(toc_adjusting_stub_needed): Likewise.
(ppc_build_one_stub): Likewise. Make undefined dot-symbols weak
rather than defining them at stub.
(ppc64_elf_relocate_section): Rewrite call test to avoid multiple
assignments in test.
ld/testsuite/
* ld-powerpc/tlsso.d: Update.
* ld-powerpc/tlsso.r: Update.
* ld-powerpc/tlstocso.d: Update.
* ld-powerpc/tlstocso.r: Update.
used by indirect function support. Count dynamic relocs for
ifunc syms.
(ppc_elf_adjust_dynamic_symbol): Tweak for ifunc.
(allocate_dynrelocs): Allocate all non-dynamic ifunc plt entries
in iplt and their relocs in reliplt. Don't make ifunc syms
dynamic. Allocate got entry relocs for non-dynamic ifunc in
reliplt. Handle other dynamic relocs for ifunc.
(ppc_elf_size_dynamic_sections): Alloc dyn relocs for static
ifunc in reliplt, likewise relocs for got against local ifunc.
Typo fix on reliplt size adjust.
(ppc_elf_relocate_section): Don't use plt scheme of allocating
relocs 1-1 with entries for iplt, instead just add using
reloc_count. Write got relocs and dyn relocs for ifunc to reliplt.
Error on invalid ifunc dyn relocs.
(ppc_elf_finish_dynamic_symbol): Adjust for non-dynamic ifunc plt
in iplt/reliplt.
* elf64-ppc.c (ppc64_elf_howto_raw): Add R_PPC64_JMP_IREL,
R_PPC64_REL16, R_PPC64_REL16_LO, R_PPC64_REL16_HI, R_PPC64_REL16_HA.
(ppc64_elf_reloc_type_lookup): Handle new relocs.
(ppc64_elf_check_relocs): Likewise. Count dyn relocs for ifunc.
(allocate_dynrelocs): As for elf32-ppc.c above.
(ppc64_elf_size_dynamic_sections): Likewise.
(ppc_build_one_stub): Put non-dynamic ifunc plt call stubs in iplt,
and their relocs in reliplt. Use R_PPC64_JMP_IREL.
(ppc_size_one_stub): Similarly.
(ppc64_elf_relocate_section): As for elf32-ppc.c above. Handle new
relocs too.
(ppc64_elf_finish_dynamic_symbol): As for elf32-ppc.c above.
* ppc.h (R_PPC_TLSGD, R_PPC_TLSLD): Add new relocs.
* ppc64.h (R_PPC64_TLSGD, R_PPC64_TLSLD): Add new relocs.
bfd/
* reloc.c (BFD_RELOC_PPC_TLSGD, BFD_RELOC_PPC_TLSLD): New.
* section.c (struct bfd_section): Add has_tls_get_addr_call.
(BFD_FAKE_SECTION): Init new flag.
* ecoff.c (bfd_debug_section): Likewise.
* bfd-in2.h: Regenerate.
* libbfd.h: Regenerate.
* elf32-ppc.c (ppc_elf_howto_raw): Add R_PPC_TLSGD and R_PPC_TLSLD.
(ppc_elf_reloc_type_lookup): Handle new relocs.
(ppc_elf_check_relocs): Set has_tls_get_addr_call on finding such
without marker relocs.
(ppc_elf_tls_optimize): Allow out-of-order __tls_get_addr relocs
if section has no old-style calls.
(ppc_elf_relocate_section): Set tls_mask for non-tls relocs too.
Don't try to optimize new-style __tls_get_addr call when handling
arg setup relocs. Instead do so for R_PPC_TLSGD and R_PPC_TLSLD
relocs.
* elf64-ppc.c (ppc64_elf_howto_raw): Add R_PPC64_TLSGD, R_PPC64_TLSLD.
(ppc64_elf_reloc_type_lookup): Handle new relocs.
(ppc64_elf_check_relocs): Set has_tls_get_addr_call on finding such
without marker relocs.
(ppc64_elf_tls_optimize): Allow out-of-order __tls_get_addr relocs
if section has no old-style calls. Set toc_ref for new relocs as
appropriate.
(ppc64_elf_relocate_section): Set tls_mask for non-tls relocs too.
Don't try to optimize new-style __tls_get_addr call when handling
arg setup relocs. Instead do so for R_PPC_TLSGD and R_PPC_TLSLD
relocs.
gas/
* config/tc-ppc.c (ppc_elf_suffix): Error if ppc32 tls got relocs
have non-zero addend.
(md_assemble): Parse args of __tls_get_addr calls.
(md_apply_fix): Handle BFD_RELOC_PPC_TLSGD and BFD_RELOC_PPC_TLSLD.
ld/testsuite/
* ld-powerpc/tlsmark.s, * ld-powerpc/tlsmark.d: New test.
* ld-powerpc/tlsmark32.s, * ld-powerpc/tlsmark32.d: New test.
* ld-powerpc/powerpc.exp: Run them.
add toc.symndx and toc.add.
(ppc64_elf_check_relocs): Don't set htab->tls_get_addr here.
Set up toc.add.
(get_tls_mask): Add toc_addend param, set from toc.add. Adjust all
callers.
(ppc64_elf_tls_setup): Set htab->tls_get_addr and tls_get_addr_fd.
(branch_reloc_hash_match): New function, extracted from..
(ppc64_elf_tls_optimize): ..here.
(ppc64_elf_relocate_section): Properly set addends when optimizing
tls sequences. Avoid unnecessary reading and writing of insns.
Only redo reloc when symbol changed. Bypass symbol checks when
using tlsld_got.
* elf32-ppc.c (ppc_elf_tls_setup): Correct comment.
(branch_reloc_hash_match): New function, extracted from..
(ppc_elf_tls_optimize): ..here.
(ppc_elf_relocate_section): Avoid unnecessary reading of insns.
Don't clear addend on zapped __tls_get_addr reloc.
given name matches the name of the reloc-containing section
associated with the given section.
(get_dynamic_reloc_section_name): New function. Computes the name
of the section that contains the dynamic relocs associated with
the given section.
(_bfd_elf_get_dynamic_reloc_section): New function. Returns a
pointer to the section containing the dynamic relocs associated
with the given section.
(_bfd_elf_make_dynamic_reloc_section): New function. Creates a
section to contain the dynamic relocs associated with a given
section.
* elf-bfd.h: Prototype the new functions.
* elf-m10300.c (mn10300_elf_check_relocs): Use new functions.
(mn10300_elf_final_link_relocs): Likewise.
* elf32-arm.c (reloc_section_p): Delete - replaced by new
functions.
(elf32_arm_final_link_relocate): Use new functions.
(elf32_arm_check_relocs): Likewise.
* elf32-cris.c (cris_elf_relocate_section): Likewise.
(elf_cris_check_relocs): Likewise.
* elf32-hppa.c (elf32_hppa_check_relocs): Likewise.
* elf32-i370.c (i370_elf_check_relocs): Likewise.
(i370_elf_relocate_section): Likewise.
* elf32-i386.c (elf_i386_check_relocs): Likewise.
* elf32-m32r.c (m32r_elf_relocate_section): Likewise.
(m32r_elf_check_relocs): Likewise.
* elf32-m68k.c (elf_m68k_check_relocs): Likewise.
* elf32_ppc.c (ppc_elf_check_relocs): Likewise.
(ppc_elf_relocate_section): Likewise.
* elf32-s390.c (elf_s390_check_relocs): Likewise.
* elf32-sh.c (sh_elf_relocate_section): Likewise.
(sh_elf_check_relocs): Likewise.
* elf32-vax.c (elf_vax_check_relocs): Likewise.
(elf_vax_relocate_section): Likewise.
* elf64-alpha.c (elf64_alpha_check_relocs): Likewise.
* elf64-ppc.c (ppc64_elf_check_relocs): Likewise.
* elf64-s390.c (elf_s390_check_relocs): Likewise.
* elf64-sh64.c (sh_elf64_relocate_section): Likewise.
* elf64-x86-64.c (elf64_x86_64_check_relocs): Likewise.
* elfxx-sparc.c (_bfd_sparc_elf_check_relocs): Likewise.
* elf32-bfin.c (bfin_check_relocs): Remove redundant local
variable 'sreloc'.
(bfin_relocate_section): Likewise.
* elf32-v850.c (v850_elf_check_relocs): Likewise.
(ppc_elf_get_synthetic_symtab): New function.
(bfd_elf32_get_synthetic_symtab): Define.
* elf64-ppc.c (section_covers_vma): New function.
(ppc64_elf_get_synthetic_symtab): Generate sym@plt on glink branch
table entries, and __glink_PLTresolve on resolver stub.
(ppc64_elf_build_stubs): Rename __glink sym to __glink_PLTresolve.
* elf32-ppc.c (MUST_BE_DYN_RELOC): Delete.
(must_be_dyn_reloc): New function.
(ppc_elf_check_relocs): Don't set DF_STATIC_TLS for tprel relocs
in pies.
(ppc_elf_tls_optimize): Optimise pies.
(ppc_elf_relocate_section): Use a section symbol rather than no
symbol if possible for LD->IE TLS sequence, but don't error if
we must use no symbol.
* elf64-ppc.c (MUST_BE_DYN_RELOC): As for elf32-ppc.c.
(must_be_dyn_reloc): Likewise.
(ppc64_elf_check_relocs): Likewise.
(ppc64_elf_tls_optimize): Likewise.
(ppc64_elf_relocate_section): Likewise.
* elf-bfd.h (enum elf_object_id): New enum, used to identify
target specific extensions to the elf_obj_tdata structure.
(struct elf_obj_tdata): New field 'object_id'.
(elf_object_id, elf_program_header_size, elf_symtab_hdr): New
macros for accessing fields in the elf_obj_tdata structure.
(bfd_elf_mkobject): Rename to bfd_elf_make_generic_object.
(bfd_elf_allocate_object): New function.
* elf.c (bfd_elf_mkobject): Rename to bfd_elf_make_generic_object
and implement by calling bfd_elf_allocate_object.
(bfd_elf_allocate_object): New function: Allocates an
elf_obj_tdata structure, possibly with a target specific
extension.
* elfxx-target.h (bfd_elfNN_mkobject): Use
bfd_elf_make_generic_object as the default value.
* elf32-arm.c (elf32_arm_obj_tdata): Rename to elf_arm_obj_tdata
for consistency with other, similar structures.
(is_arm_elf): New macro. Checks a BFD to make sure that is an ARM
ELF bfd.
(elf32_arm_mkobject): Call bfd_elf_allocate_object.
(bfd_elf32_arm_vfp11_erratum_scan): Use is_arm_elf macro to check
the bfd being processed.
(bfd_elf32_arm_vfp11_fix_veneer_locations): Likewise.
(bfd_elf32_arm_set_target_relocs): Likewise.
(bfd_elf32_arm_final_link_relocate): Likewise.
(bfd_elf32_arm_copy_private_bfd_data): Likewise.
(bfd_elf32_arm_merge_eabi_attributes): Likewise.
(bfd_elf32_arm_merge_private_bfd_data): Likewise.
(bfd_elf32_arm_check_relocs): Likewise.
(bfd_elf32_arm_gc_mark_extra_sections): Likewise.
(bfd_elf32_arm_size_dynamic_sections): Likewise.
(bfd_elf32_arm_process_before_allocation): Use elf_symtab_hdr.
(bfd_elf32_arm_init_maps): Likewise.
(bfd_elf32_arm_final_link_relocate): Likewise.
(bfd_elf32_arm_relocate_section): Likewise.
(bfd_elf32_arm_gc_sweep_hook): Likewise.
(bfd_elf32_arm_check_relocs): Likewise.
(bfd_elf32_arm_size_dynamic_sections): Likewise.
* elf32-i386.c (elf_i386_mkobject): Call bfd_elf_allocate_object.
(is_i386_elf): New macro. Checks a BFD to make sure that is an x86
ELF bfd.
(elf_i386_check_relocs): Use is_i386_elf macro to check the bfd
being processed.
(elf_i386_size_dynamic_sections): Likewise.
(elf_i386_relocate_section): Likewise.
(elf_i386_check_relocs): Use elf_symtab_hdr.
(elf_i386_gc_sweep_hook): Likewise.
(elf_i386_size_dynamic_sections): Likewise.
(elf_i386_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_mkobject): Call bfd_elf_allocate_object.
(elf_create_pointer_linker_section): Use is_ppc_elf_target to
verify that the bfd before accessing target specific fields.
(ppc_elf_check_relocs): Likewise.
(elf_finish_pointer_linker_section): Likewise.
(elf_create_pointer_linker_section): Use elf_symtab_hdr.
(ppc_elf_check_relocs): Likewise.
(ppc_elf_gc_sweep_hook): Likewise.
(ppc_elf_tls_optimize): Likewise.
(ppc_elf_size_dynamic_sections): Likewise.
(ppc_elf_relax_section): Likewise.
(ppc_elf_relocate_section): Likewise.
* elf32-s390.c (struct elf_s390_obj_tdata): Add a comment
reminding programmers to keep this structure in sync with the one
defined in elf64-s390.c.
(elf_s390_mkobject): Call bfd_elf_allocate_object.
(is_s390_elf): New macro. Checks a BFD to make sure that is an s390
ELF bfd.
(elf_s390_check_relocs): Use is_s390_elf macro to check the bfd
being processed.
(elf_s390_size_dynamic_sections): Likewise.
(elf_s390_relocate_section): Likewise.
(elf_s390_check_relocs): Use elf_symtab_hdr.
(elf_s390_gc_sweep_hook): Likewise.
(elf_s390_size_dynamic_sections): Likewise.
(elf_s390_relocate_section): Likewise.
* elf32-sh.c (sh_elf_mkobject): Call bfd_elf_allocate_object.
(is_sh_elf): New macro. Checks a BFD to make sure that is an SH
ELF bfd.
(sh_elf_size_dynamic_sections): Use is_sh_elf macro to check the
bfd being processed.
(sh_elf_relocate_section): Likewise.
(sh_elf_check_relocs): Likewise.
(sh_elf_copy_private_data): Likewise.
(sh_elf_relax_section): Use elf_symtab_hdr.
(sh_elf_size_dynamic_sections): Likewise.
(sh_elf_relocate_section): Likewise.
(sh_elf_get_relocated_section_contents): Likewise.
(sh_elf_gc_sweep_hook): Likewise.
(sh_elf_check_relocs): Likewise.
* elf64-alpha.c (elf64_alpha_mkobject): Call bfd_elf_allocate_object.
(is_alpha_elf): New macro. Checks a BFD to make sure that is an
Alpha ELF bfd.
(elf64_alpha_create_got_section): Use is_alpha_elf macro to check
the bfd being processed.
(elf64_alpha_create_dynamic_section): Likewise.
(elf64_alpha_check_relocs): Likewise.
(elf64_alpha_size_got_sections): Likewise.
(elf64_alpha_relax_section): Likewise.
(elf64_alpha_relocate_section): Likewise.
(elf64_alpha_final_link): Likewise.
(elf64_alpha_check_relocs): Use elf_symtab_hdr.
(elf64_alpha_relax_section): Likewise.
(elf64_alpha_relocate_section_r): Likewise.
(elf64_alpha_relocate_section): Likewise.
* elf64-ppc.c (ppc64_elf_mkobject): Call bfd_elf_allocate_object.
(ppc64_elf_check_relocs): Use is_ppc64_elf_target to check the bfd
being processed.
(opd_entry_value): Likewise.
(allocate_dynrelocs): Likewise.
(ppc64_elf_relocate_section): Likewise.
(ppc64_elf_check_relocs): Use elf_symtab_hdr.
(opd_entry_value): Likewise.
(ppc64_elf_gc_sweep_hook): Likewise.
(get_sym_h): Likewise.
(ppc64_elf_edit_opd): Likewise.
(ppc64_elf_tls_optimize): Likewise.
(ppc64_elf_edit_toc): Likewise.
(ppc64_elf_size_dynamic_sections): Likewise.
(toc_adjusting_stub_needed): Likewise.
(ppc64_elf_size_stubs): Likewise.
(ppc64_elf_relocate_section): Likewise.
* elf64-s390.c (struct elf_s390_obj_tdata): Add a comment
reminding programmers to keep this structure in sync with the one
defined in elf32-s390.c.
(elf_s390_mkobject): Call bfd_elf_allocate_object.
(is_s390_elf): New macro. Checks a BFD to make sure that is an s390
ELF bfd.
(elf_s390_check_relocs): Use is_s390_elf macro to check the bfd
being processed.
(elf_s390_size_dynamic_sections): Likewise.
(elf_s390_relocate_section): Likewise.
(elf_s390_check_relocs): Use elf_symtab_hdr.
(elf_s390_gc_sweep_hook): Likewise.
(elf_s390_size_dynamic_sections): Likewise.
(elf_s390_relocate_section): Likewise.
* elf64-x86_64.c (elf64_x86_64_mkobject): Call bfd_elf_allocate_object.
(is_x86_64_elf): New macro. Checks a BFD to make sure that is an
x86_64 ELF bfd.
(elf64_x86_64_check_relocs): Use is_x86_64_elf macro to check the bfd
being processed.
(elf64_x86_64_size_dynamic_sections): Likewise.
(elf64_x86_64_relocate_section): Likewise.
(elf64_x86_64_check_relocs): Use elf_symtab_hdr.
(elf64_x86_64_gc_sweep_hook): Likewise.
(elf64_x86_64_size_dynamic_sections): Likewise.
(elf64_x86_64_relocate_section): Likewise.
* elfxx-sparc.c (_bfd_sparc_elf_mkobject): Call bfd_elf_allocate_object.
(is_sparc_elf): New macro. Checks a BFD to make sure that is a Sparc
ELF bfd.
(_bfd_sparc_elf_check_relocs): Use is_sparc_elf macro to check the
bfd being processed.
(_bfd_sparc_elf_gc_sweep_hook): Likewise.
(_bfd_sparc_elf_size_dynamic_sections): Likewise.
(_bfd_sparc_elf_check_relocs): Use elf_symtab_hdr.
(_bfd_sparc_elf_gc_sweep_hook): Likewise.
(_bfd_sparc_elf_size_dynamic_sections): Likewise.
(_bfd_sparc_elf_relocate_section): Likewise.
PR 5604
* elf-bfd.h (struct elf_backend_data): Add gc_keep. Remove param
names from others.
(_bfd_elf_gc_keep): Declare.
* elfxx-target.h (elf_backend_gc_keep): Define.
(elfNN_bed): Init new field.
* elflink.c (_bfd_elf_gc_keep): New function.
(bfd_elf_gc_sections): Call gc_keep.
* elf64-ppc.c (elf_backend_gc_keep): Define.
(struct _ppc64_elf_section_data): Move .opd related fields to
a struct so they don't occupy the same storage. Adjust accesses
throughout file.
(ppc64_elf_gc_keep): New function, split out from..
(ppc64_elf_gc_mark_hook): ..here. Don't call _bfd_elf_gc_mark
to mark .opd section, just set gc_mark.
(ppc64_elf_edit_opd): Remove no_opd_opt parm. Don't set opd->adjust
unless we are changing .opd. Test non-NULL opd->adjust at all
accesses throughout file.
* elf64-ppc.h (ppc64_elf_edit_opd): Update prototype.
ld/
PR 5604
* ldlang.c (lang_gc_sections): Move code to set SEC_KEEP on entry
syms to _bfd_elf_gc_keep.
* emultempl/ppc64elf.em (ppc_before_allocation): Don't call
ppc64_elf_edit_opd if no_opd_opt.
* elf64-ppc.c (ppc64_elf_get_synthetic_symtab): Set udata.p of
synthetic symbol to point to the ELF symbol it was derived from.
gdb/ChangeLog:
* elfread.c (ST_REGULAR, ST_DYNAMIC, ST_SYNTHETIC): New defines.
(elf_symtab_read): Rename DYNAMIC argument to TYPE. Do not access
ELF-private symbol data when processing synthetic symbols. Use
udata.p to get at size of ppc64 synthetic 'dot' symbols.
(elf_symfile_read): Pass TYPE argument to elf_symtab_read.
Alan Modra