bfd/
2010-01-26 Alan Modra <amodra@gmail.com>
H.J. Lu <hongjiu.lu@intel.com>
PR ld/11218
* elflink.c (elf_link_output_extsym): Do not ignore undefined
symbols with ref_regular set when gc_sections is active.
ld/testsuite/
2010-01-26 H.J. Lu <hongjiu.lu@intel.com>
PR ld/11218
* ld-gc/dummy.s: New.
* ld-gc/pr11218-1.c: Likewise.
* ld-gc/pr11218-2.c: Likewise.
* ld-gc/pr11218.d: Likewise.
bfd/
2010-01-07 H.J. Lu <hongjiu.lu@intel.com>
PR ld/11138
* elflink.c (elf_link_check_versioned_symbol): Don't abort if
a symbol referenced by DSO is is defined in a non-shared object
and forced local.
ld/testsuite/
2010-01-07 H.J. Lu <hongjiu.lu@intel.com>
PR ld/11138
* ld-elf/pr11138-1.c: New.
* ld-elf/pr11138-1.map: Likewise.
* ld-elf/pr11138-2.c: Likewise.
* ld-elf/pr11138-2.map: Likewise.
* ld-elf/pr11138.out: Likewise.
* ld-elf/shared.exp (build_tests): Add libpr11138-1.so and
libpr11138-2.o.
(run_tests): Add 2 tests for PR ld/11138.
bfd/
2010-01-07 H.J. Lu <hongjiu.lu@intel.com>
PR ld/11133
* elflink.c (_bfd_elf_gc_mark_hook): Check section XXX for
undefined __start_XXX/__stop_XXX in all input files and set
SEC_KEEP.
ld/testsuite/
2010-01-07 H.J. Lu <hongjiu.lu@intel.com>
PR ld/11133
* ld-gc/gc.exp: Run start.
* ld-gc/start.d: New.
* ld-gc/start.s: Likewise.
info for STT_GNU_IFUNC.
* elf32-ppc.c (ppc_elf_check_relocs): Count a needed plt entry
on got refs in case the symbol turns out to be ifunc.
(ppc_elf_gc_sweep_hook): Similarly.
(ppc_elf_adjust_dynamic_symbol): Adjust assertion.
(allocate_dynrelocs): Don't specially allocate got relocs for ifunc.
(ppc_elf_size_dynamic_sections): Likewise.
(ppc_elf_relocate_section): Likewise.
gnu_unique_object.
* doc/as.texinfo: Document new feature of .type directive.
* NEWS: Mention support for gnu_unique_object symbol type.
* common.h (STB_GNU_UNIQUE): Define.
* NEWS: Mention the linker's support for symbols with a binding of
STB_GNU_UNIQUE.
* gas/elf/type.s: Add unique global symbol definition.
* gas/elf/type.e: Add expected readelf output for global unique
symbol.
* elfcpp.h (enum STB): Add STB_GNU_UNIQUE.
* readelf.c (get_symbol_binding): For Linux targeted files return
UNIQUE for symbols with the STB_GNU_UNIQUE binding.
* doc/binutils.texi: Document the meaning of the 'u' symbol
binding in the output of nm and objdump --syms.
* elf-bfd.h (struct elf_link_hash_entry): Add unique_global field.
* elf.c (swap_out_syms): Set binding to STB_GNU_UNIQUE for symbols
with the BSF_GNU_UNIQUE flag bit set.
* elfcode.h (elf_slurp_symbol_table): Set the BSF_GNU_UNIQUE flag
for symbols with STB_GNU_UNIQUE binding.
* elflink.c (_bfd_elf_merge_symbol): Set unique_global for symbols
with the STB_GNU_UNIQUE binding.
(elf_link_add_object_symbols): Set the BSF_GNU_UNIQUE flag for
symbols with STB_GNU_UNIQUE binding. Set STB_GNU_UNIQUE for
symbols with the unique_global field set.
(elf_link_output_extsym): Set unique_global field for symbols with
the STB_GNU_UNIQUE binding.
* syms.c (struct bfd_symbol): Define BSF_GNU_UNIQUE flag bit.
(bfd_print_symbol_vandf): Print a 'u' character for BSF_GNU_UNIQUE
symbols.
(bfd_decode_symclass): Return a 'u' character for BSF_GNU_UNIQUE
symbols.
* bfd-in2.h: Regenerate.
2009-07-21 H.J. Lu <hongjiu.lu@intel.com>
PR ld/10426
* elflink.c (elf_link_add_object_symbols): Turn an IFUNC symbol
from a DSO into a normal FUNC symbol.
(elf_link_output_extsym): Turn an undefined IFUNC symbol into
a normal FUNC symbol.
ld/testsuite/
2009-07-21 H.J. Lu <hongjiu.lu@intel.com>
PR ld/10426
* ld-ifunc/ifunc.exp: Check test-1 and libtest-2.so. Updated.
* ld-ifunc/test-1.c: New.
* ld-ifunc/test-2.c: Likewise.
and ref_regular_nonweak comment.
* elflink.c (elf_link_output_extsym): Special case ifunc syms
when def_regular, not ref_regular.
(elf_link_add_object_symbols): Don't set needs_plt on ifunc syms,..
* elf32-i386.c (elf_i386_check_relocs): ..set it here instead..
* elf64-x86-64.c (elf64_x86_64_check_relocs): ..and here.
2009-06-06 H.J. Lu <hongjiu.lu@intel.com>
* elf32-i386.c (elf_i386_link_hash_table): Add irelifunc.
(elf_i386_link_hash_table_create): Initialize irelifunc.
(elf_i386_check_relocs): Updated. Set up irelifunc for
shared objects.
(elf_i386_allocate_dynrelocs): Use irelifunc for dynamic
relocation for non-GOT reference of STT_GNU_IFUNC symbol in
shared objects.
(elf_i386_relocate_section): Likewise.
* elf64-x86-64.c (elf64_x86_64_link_hash_table): Add irelifunc.
(elf64_x86_64_link_hash_table_create): Initialize irelifunc.
(elf64_x86_64_check_relocs): Updated. Set up irelifunc for
shared objects.
(elf64_x86_64_allocate_dynrelocs): Use irelifunc for dynamic
relocation for non-GOT reference of STT_GNU_IFUNC symbol in
shared objects.
(elf64_x86_64_relocate_section): Likewise.
* elf-bfd.h (_bfd_elf_create_static_ifunc_sections): Renamed to
...
(_bfd_elf_create_ifunc_sections): This.
* elflink.c (_bfd_elf_create_static_ifunc_sections): Renamd to
...
(_bfd_elf_create_ifunc_sections): This. Create .rel[a].ifunc
for shared objects.
ld/
2009-06-06 H.J. Lu <hongjiu.lu@intel.com>
* scripttempl/elf.sc: Add .rel.ifunc and .rela.ifunc.
* elflink.c (find_version_for_sym): Remove from here, ...
* linker.c (bfd_find_version_for_sym): ... rename, replace
here, make public and update all callers.
* bfd-in2.h: Regenerate.
ld/ChangeLog
* NEWS: Mention new feature.
* ld.texinfo (--version-script): Document extent of PE support.
(WIN32): Mention --version-script. Extend auto-export description.
* pe-dll.c (process_def_file): Use version script info to filter
symbols from auto-export.
* testsuite/ld-pe/vers-script-1.d: New file.
* testsuite/ld-pe/vers-script-2.d: New file.
* testsuite/ld-pe/vers-script-3.d: New file.
* testsuite/ld-pe/vers-script-4.d: New file.
* testsuite/ld-pe/vers-script-1.ver: New file.
* testsuite/ld-pe/vers-script-2.ver: New file.
* testsuite/ld-pe/vers-script-3.ver: New file.
* testsuite/ld-pe/vers-script-4.ver: New file.
* testsuite/ld-pe/vers-script-dll.c: New file.
* testsuite/ld-pe/vers-script.exp: New test script.
2009-04-30 Nick Clifton <nickc@redhat.com>
* common.h (STT_GNU_IFUNC): Define.
elfcpp
2009-04-30 Nick Clifton <nickc@redhat.com>
* (enum STT): Add STT_GNU_IFUNC.
gas
2009-04-30 Nick Clifton <nickc@redhat.com>
* config/obj-elf.c (obj_elf_type): Add support for a
gnu_indirect_function type.
* config/tc-i386.c (tc_i386_fix_adjustable): Do not adjust fixups
against indirect function symbols.
* doc/as.texinfo (.type): Document the support for the
gnu_indirect_function symbol type.
* NEWS: Mention the new feature.
gas/testsuite
2009-04-30 Nick Clifton <nickc@redhat.com>
* gas/elf/elf.exp: Extend type test to include an ifunc symbol.
Provide an alternative test for targets which do not support ifunc
symbols.
(type.s): Add entry for an ifunc symbol.
(type.e): Add ifunc entry to expected symbol dump.
(section2.e-armelf): Add entry for ifunc symbol.
(type-noifunc.s): New file.
(type-noifunc.e): New file.
bfd/
2009-04-30 Nick Clifton <nickc@redhat.com>
* elf-bfd.h (struct bfd_elf_section_data): Add indirect_relocs
section pointer.
(struct elf_obj_data): Add has_ifunc_symbols boolean.
* elf.c (swap_out_syms): Convert BSF_GNU_INDIRECT_FUNCTION flags
into a STT_GNU_IFUNC symbol type.
(_bfd_elf_is_function_type): Accept STT_GNU_IFUNC as a function
type.
(_bfd_elf_set_osabi): Set the osasbi field to ELFOSABI_LINUX if
the binary contains ifunc symbols.
* elfcode.h (elf_slurp_symbol_table): Translate the STT_GNU_IFUNC
symbol type into a BSF_GNU_INDIRECT_FUNCTION flag.
* elf32-i386.c (is_indirect_function): New function.
(elf_i386_check_relocs): Create an ifunc output section.
(allocate_dynrelocs): Create dynamic relocs in the ifunc output
section if necessary.
(elf_i386_relocate_section): Emit a reloc against an ifunc symbol
if necessary.
(elf_i386_add_symbol_hook): New function. Set the
has_ifunc_symbols field of the elf_obj_data structure if an ifunc
symbol is encountered.
(elf_backend_post_process_headers): Define.
(elf_backend_add_symbol_hook): Define.
(elf_i386_post_process_headers): Rename to
elf_i388_fbsd_post_process_headers.
* elf64-x86_64.c (IS_X86_64_PCREL_TYPE): New macro.
(is_indirect_function): New function.
(elf64_x86_64_check_relocs): Create an ifunc output section.
(allocate_dynrelocs): Create dynamic relocs in the ifunc output
section if necessary.
(elf64_x86_64_relocate_section): Emit a reloc against an ifunc
symbol if necessary.
(elf_i386_add_symbol_hook): Set the has_ifunc_symbols field of the
elf_obj_data structure if an ifunc symbol is encountered.
(elf_backend_post_process_headers): Define.
* elflink.c (_bfd_elf_adjust_dynamic_symbol): Always create a PLT
if we have ifunc symbols to handle.
(get_ifunc_reloc_section_name): New function. Computes the name
for an ifunc section.
(_bfd_elf_make_ifunc_reloc_section): New function. Creates a
section to hold ifunc relocs.
* syms.c (BSF_GNU_INDIRECT_FUNCTION): Define.
(bfd_print_symbol_vandf): Handle ifunc symbols.
(bfd_decode_symclass): Likewise.
* bfd-in2.h: Regenerate.
binutils
2009-04-30 Nick Clifton <nickc@redhat.com>
* readelf.c (dump_relocations): Display a relocation against an
ifunc symbol as if it were a function invocation.
(get_symbol_type): Handle STT_GNU_IFUNC.
ld
2009-04-30 Nick Clifton <nickc@redhat.com>
* NEWS: Mention support for IFUNC symbols.
ld/testsuite
2009-04-30 Nick Clifton <nickc@redhat.com>
* ld-ifunc: New directory.
* ld-ifunc/ifunc.exp: New file: Run the IFUNC tests.
* ld-ifunc/prog.c: New file.
* ld-ifunc/lib.c: New file.
* elf-bfd.h (NUM_SHDR_ENTRIES): Cope with an empty section.
* elflink.c (elf_link_read_relocs_from_section): Use
NUM_SHDR_ENTRIES. Gracefully handle the case where there are
relocs but no symbol table.
* elf32-arm.c (elf32_arm_check_relocs): Likewise.
* elflink.c (bfd_elf_final_link): When counting the relocations,
if the header size has not been set yet then assume that it will
match the output section's reloc type.
* NEWS: Mention --as-needed change.
ld/
* ld.texinfo (--as-needed): Update.
bfd/
* elflink.c (on_needed_list): New function.
(elf_link_add_object_symbols): Link in --as-needed libs if they
satisfy undefined symbols in other libs.
* elflink.c (find_version_for_sym): New function split out from,
but without export_dynamic test, ..
(_bfd_elf_link_assign_sym_version): ..here.
(_bfd_elf_export_symbol): Use it.
2009-01-14 H.J. Lu <hongjiu.lu@intel.com>
PR ld/9727
* elflink.c (elf_gc_sweep): Exclude the group section if the
first member of the section group is excluded.
ld/testsuite/
2009-01-14 H.J. Lu <hongjiu.lu@intel.com>
PR ld/9727
* ld-elf/group8.s: New.
* ld-elf/group8a.d: Likewise.
* ld-elf/group8b.d: Likewise.
* ld-elf/group9.s: Likewise.
* ld-elf/group9a.d: Likewise.
* ld-elf/group9b.d: Likewise.
