(bfd_section_from_shdr): Don't change SHT_GROUP section name.
* elflink.c (section_signature): New function.
(_bfd_elf_section_already_linked): Use it.
2008-09-16 H.J. Lu <hongjiu.lu@intel.com>
PR ld/6877
* elflink.c (_bfd_elf_merge_symbol): Allow a common symbol to
override the function in a shared library.
ld/testsuite/
2008-09-16 H.J. Lu <hongjiu.lu@intel.com>
PR ld/6877
* ld-elf/comm1.c: New.
* ld-elf/func1.c: Likewise.
* ld-elf/shared.exp: Add tests for libfunc1.so and comm1.
Fix PR ld/3290 regression for cross-files DW_FORM_ref_addr relocations.
* elflink.c (elf_link_add_object_symbols): Make debug symbols local
now only for non-RELOCATABLE targets.
ld/testsuite/
* ld-x86-64/dwarfreloc.exp, ld-x86-64/dwarfreloc.rd,
ld-x86-64/dwarfreloc1.s, ld-x86-64/dwarfreloc2.s: New test.
* elf-bfd.h (elf_backend_data): Add a "rela_plts_and_copies_p" field.
* elfxx-target.h (elf_backend_rela_plts_and_copies_p): New macro.
(elfNN_bed): Use it.
* elf.c (_bfd_elf_get_synthetic_symtab): Use rela_plts_and_copies_p
instead of default_use_rela_p to choose between ".rel.plt" and
".rela.plt".
* elflink.c (_bfd_elf_create_dynamic_sections): Use
rela_plts_and_copies_p instead of default_use_rela_p to choose
between ".rel.plt" and ".rela.plt", and between ".rel.bss" and
".rela.bss".
(_bfd_elf_canonicalize_dynamic_reloc): Find dynamic relocations
even if they are not loaded.
* elflink.c (_bfd_elf_init_2_index_sections): Set data_index_section
first.
* ld-arm/symbian-seg1.s, ld-arm/symbian-seg1.d: New files.
* ld-arm/arm-elf.exp: Run symbian-seg1.
* internal.h (Elf_Internal_Shdr): Change sh_link and sh_info from
unsigned long to unsigned int. Change sh_addralign to bfd_vma.
Order struct as for external version.
bfd/
* elf.c (_bfd_elf_make_section_from_shdr): Remove unnecessary cast.
(_bfd_elf_assign_file_position_for_section): Simplify align.
(_bfd_elf_init_reloc_shdr): Ensure shift expression wide enough
for sh_addralign.
(elf_fake_sections, swap_out_syms): Likewise.
* elflink.c (bfd_elf_final_link): Likewise.
binutils/
* readelf.c: Use %u throughout when printing sh_link or sh_info,
%lu when printing sh_addralign.
(process_version_sections): Use identical formats when printing
all offset and sh_link fields.
* libbfd.c (bfd_realloc_or_free): New function. Performs like
bfd_realloc, but if the (re)allocation fails, the pointer is
freed.
* libbfd-in.h: Prototype.
* libbfd.h: Regenerate.
* bfdio.c (bfd_bwrite): Use the new function.
(bfd_seek): Likewise.
* bfdwin.c:(bfd_get_file_window): Likewise.
* elf-strtab.c (_bfd_elf_strtab_add): Likewise.
* elf32-ppc.c (ppc_elf_relax_section): Likewise.
* elf32-xtensa.c (vsprintf_msg): Likewise.
* mach-o.c (bfd_mach_o_core_fetch_environment): Likewise.
* stabs.c (_bfd_link_seciton_stabs): Likewise.
* vms-misc.c (_bfd_vms_get_record): Likewise.
* vms-tir.c (check_section): Likewise.
* vms.c (vms_new_section_hook): Likewise.
* elf32-arm.c (elf32_arm_section_map_add): Check that the
allocation of sec_data->map succeeded before using it.
* elflink.c (elf_link_output_sym): Do not overwrite finfo->
symshndxbuf until it is known that the reallocation succeeded.
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.
2008-01-07 H.J. Lu <hongjiu.lu@intel.com>
PR ld/5522
* elflink.c (elf_link_input_bfd): Don't write out a section if
its output section is marked with SEC_NEVER_LOAD.
ld/testsuite/
2008-01-07 H.J. Lu <hongjiu.lu@intel.com>
PR ld/5522
* ld-elf/noload-3.d: New file.
* ld-elf/noload-3.s: Likewise.
* ld-elf/noload-3.t: Likewise.
* elf-bfd.h (eh_cie_fde): Add u.fde.next_for_section and
u.cie.gc_mark.
(bfd_elf_section_data): Add fde_list.
(elf_fde_list): New macro.
(elf_obj_tdata): Add eh_frame_section.
(elf_eh_frame_section): New macro.
(_bfd_elf_gc_mark_reloc): Remove last parameter.
(_bfd_elf_gc_mark_fdes): Declare.
* elf-eh-frame.c (_bfd_elf_get_eh_frame_sec_info): Chain the FDEs
for each input section.
(mark_entry, _bfd_elf_gc_mark_fdes): New functions.
* elflink.c (_bfd_elf_gc_mark_reloc): Remove is_eh parameter.
(_bfd_elf_gc_mark): Update call accordingly. Mark the relocations
againts the section's FDEs. Don't mark the bfd's elf_eh_frame_section.
(bfd_elf_gc_sections): Parse each input bfd's .eh_frame before
marking any input sections. Remove the current EH handling.
* section.c (bfd_section): Remove gc_mark_from_eh.
* ecoff.c (bfd_debug_section): Update initializer accordingly.
* elf-bfd.h (eh_cie_fde): Add u.cie. Document how u.fde.cie_inf
changes when removed == 0.
(eh_frame_hdr_info): Add parsed_eh_frames.
(_bfd_elf_begin_eh_frame_parsing): Declare.
(_bfd_elf_parse_eh_frame): Declare.
(_bfd_elf_end_eh_frame_parsing): Declare.
* elf-eh-frame.c (_bfd_elf_begin_eh_frame_parsing): New function.
(_bfd_elf_parse_eh_frame): New function, split out from
_bfd_elf_discard_section_eh_frame. Make a first pass through the
buffer to calculate the number of entries and CIEs. Allocate memory
for them before the main loop. Replace current extended cie
representation with a pair of pointers, one to the local eh_cie_fde
and one to the full struct cie. Allocate a separate array of struct
cies if not merging. Merge CIEs during the main loop and set up each
u.cie.merged field. Point an FDE's cie_inf field directly at the
local CIE. Initially assume that all entries should be removed.
(_bfd_elf_end_eh_frame_parsing): New function.
(_bfd_elf_discard_section_eh_frame): Assume that the section has
already been parsed. Use a separate pass to mark entries that
need to be kept. Use the u.cie.merged field to track a CIE's
group representative.
* elflink.c (bfd_elf_discard_info): Call _bfd_elf_parse_eh_frame
before _bfd_elf_discard_section_eh_frame. Wrap loop with calls to
_bfd_elf_begin_eh_frame_parsing and _bfd_elf_end_eh_frame_parsing.
* elf-bfd.h (_bfd_elf_gc_mark_rsec, _bfd_elf_gc_mark_reloc): Declare.
(_bfd_elf_gc_mark): Use elf_gc_mark_hook_fn.
* elflink.c (init_reloc_cookie, fini_reloc_cookie)
(init_reloc_cookie_rels, fini_reloc_cookie_rels): New functions,
split out from...
(bfd_elf_discard_info): ...here.
(init_reloc_cookie_for_section): New function.
(fini_reloc_cookie_for_section): Likewise.
(_bfd_elf_gc_mark_rsec, _bfd_elf_gc_mark_reloc): New functions,
split out from...
(_bfd_elf_gc_mark): ...here. Use init_reloc_cookie_for_section
and fini_reloc_cookie_for_section.
* lib/ld-lib.exp (check_gc_sections_available): New proc, based on the version in gcc/testsuite/lib/target-supports.exp.
* ld-elf/eld.exp: Use check_gc_sections_available.
params. Change symidx to a size_t. Don't access past end
of symbol buffer.
(resolve_symbol): Add isymbuf param and use instead of
finfo->internal_syms.
(eval_symbol, evaluate_complex_relocation_symbols): Likewise.
(elf_link_input_bfd): Don't read symbols specially for
evaluate_complex_relocation_symbols.
* linker.c (bfd_section_already_linked_table_insert): Change
return type from void to boolean. Return FALSE on failure.
(_bfd_generic_section_already_linked): Test return value of
bfd_section_already_linked_table_insert, call fatal on error.
* elflink.c (_bfd_elf_section_already_linked): Test return value
of bfd_section_already_linked_table_insert, call fatal on error.
* libbfd-in.h (bfd_section_already_linked_table_insert): Update
return type to bfd_boolean.
* libbfd.h: Regenerate.
* elflink.c (_bfd_elf_fix_symbol_flags): Only assert the type
of weakdef->root.type if weakdef has no regular definition.
ld/testsuite/
* ld-elf/weak-dyn-1a.s, ld-elf/weak-dyn-1b.s, ld-elf/weak-dyn-1.ld,
* ld-elf/weak-dyn-1.rd: New test.
* ld-elf/elf.exp: Run it.
* elflink.c (bfd_elf_record_link_assignment): Handle indirect
symbol.
(_bfd_elf_merge_symbol): Properly update normal symbol when
overriding the versioned symbol from a dynamic library.
