(struct Opd_ent): Make "discard" a bit field. Add "gc_mark".
(Target_powerpc::do_gc_mark_symbol): Delay marking function code
section if scan_opd_relocs not yet called.
(Target_powerpc::gc_process_relocs): Call process_gc_mark.
do_plt_address_for_global): New functions.
(Output_data_got_powerpc::do_write): Don't segfault when linking
statically.
(Output_data_plt_powerpc::add_entry, add_ifunc_entry,
add_local_ifunc_entry): Return true on adding entry..
(Target_powerpc::make_plt_entry): ..use to avoid unnecessary
glink->add_entry call. Remove unused symtab param. Adjust calls.
(Target_powerpc::make_local_ifunc_plt_entry): Likewise.
(Target_powerpc::make_iplt_section): Remove symtab param. Don't
set up symbols here.
(Target_powerpc::do_finalize_sections): Instead set up __rela_iplt
syms here. Do so even when no .iplt. Don't segfault when linking
statically.
(Output_data_glink::add_entry, find_entry): Rearrange params. Add
new variants without reloc param.
(Glink_sym_ent::Glink_sym_ent): Likewise.
(Target_powerpc::Scan::reloc_needs_plt_for_ifunc): Accept any
reloc when refs will resolve to plt call stub.
(Target_powerpc::Scan::local): Correct ifunc handling. Allow
R_PPC_PLTREL24 to resolve locally.
(Target_powerpc::Scan::global): Correct ifunc handling.
(Target_powerpc::Relocate::relocate): Correct local sym glink
lookup. Don't destroy "value" when we have a plt call stub,
and when checking plt call validity.
(Target_powerpc::do_dynsym_value): Simplify.
bytes, so that the 16 bit relocations have a greater chance of
working.
* tilegx.cc (Target_tilegx::do_finalize_sections): Adjust
global_offset_table_ value for larget got.
(Target_tilegx::Relocate::relocate): Handle adjusted got value.
(Target_powerpc::iplt_section, make_iplt_section,
reloc_needs_plt_for_ifunc, make_local_ifunc_plt_entry): New functions.
(Target_powerpc::make_plt_entry): Handle ifunc syms.
Target_powerpc::plt_entry_count): Count iplt entries too.
(Output_data_plt_powerpc::Output_data_plt_powerpc): Don't create
reloc section in constructor. New params.
(Target_powerpc::make_plt_section): Create reloc section here instead.
(Output_data_plt_powerpc::add_ifunc_entry, add_local_ifunc_entry): New
functions.
(Output_data_plt_powerpc::initial_plt_entry_size_, name_): New vars.
(Output_data_glink::add_entry, find_entry): New functions to
deal with local syms.
(Glink_sym_ent): Add support for local syms.
(Output_data_glink::do_write): Handle ifunc plt entries.
(Target_powerpc::Scan::get_reference_flags): Handle more relocs.
(Target_powerpc::Scan::local, global): Handle ifunc syms.
(Target_powerpc::Relocate::relocate): Likewise.
(Target_powerpc::do_dynsym_value): Use glink stub, not plt entry.
do_adjust_local_symbol): New functions.
* object.cc (Sized_relobj_file::do_count_local_symbols): Use the above.
* powerpc.cc (Powerpc_relobj::do_adjust_local_symbol): New function.
(Powerpc_relobj::scan_opd_relocs): Warn on unexpected opd relocs
and irregular opd entry spacing.
(Powerpc_relobj::do_read_relocs): Add opd size checks.
(Global_symbol_visitor_opd): New functor.
(Target_powerpc::do_finalize_sections): Omit global symbols defined
on deleted opd entries.
against symbols in discarded sections. Pass is_discarded
param.
* arm.cc, * i386.cc, * sparc.cc, * x86_64.cc (Target_*::Scan::local):
Add is_discarded param.
* powerpc (Target_powerpc::Scan::local): Likewise. Use
is_discarded to flag opd entry as discarded. Don't emit dyn
relocs on such entries.
(Target_powerpc::Scan::global): Similarly detect and handle
such opd entries.
(Powerpc_relobj): Replace opd_ent_shndx_ and opd_ent_off_ with
opd_ent_. Update all uses.
(Powerpc_relobj::get_opd_discard, set_opd_discard): New functions.
(Target_powerpc::relocate_section): Zero out discarded opd
entry relocs.
* output.cc: Rename Output_data_got template parameter from size
to got_size for all functions. Compile all variants of
Output_data_got.
(Output_data_got::Got_entry::write): Correct use of size for
symbol value. Use local_is_tls rather than casting to
Sized_relobj_file.
* object.h (class Object): Add local_is_tls and do_local_is_tls.
(class Sized_relobj_file): Add do_local_is_tls.
* incremental.h (class Sized_relobj_incr): Add do_local_is_tls.
* layout.cc (Layout::set_segment_offsets): When using
common-page-size alignment, ensure we are on a new max-page-size
page.
* output.cc (Output_segment::set_section_addresses): Use
abi_pagesize, not common_pagesize for relro boundary.
(Output_segment::set_offset): Likewise.
* gdb-index.cc (Gdb_index::pubnames_read): New parameter.
(Gdb_index::pubtypes_read): New parameter.
(Gdb_index_info_reader::read_pubnames_and_pubtypes): Add parameters
to calls.
* gdb-index.h (Gdb_index): New fields pubnames_object_ and
pubtypes_object_.
(Sized_target::gc_add_reference, do_gc_add_reference): New functions.
* gc.h (gc_process_relocs): Call target gc_add_reference.
* gold.cc (queue_middle_tasks): Use gc_mark_symbol on start sym.
* symtab.cc (Symbol_table::gc_mark_undef_symbols): Use gc_mark_symbol.
(Symbol_table::gc_mark_symbol): Call target gc_mark_symbol. Remove
unnecessary cast.
* powerpc.cc (Powerpc_relobj::get_opd_ent): Rearrange parameters
to cater for when we don't need code offset. Update use.
(Powerpc_relobj::access_from_map_, opd_valid_): New vars.
(Powerpc_relobj::access_from_map, add_reference, opd_valid,
set_opd_valid): New functions.
(Target_powerpc::do_gc_add_reference): New function.
(Target_powerpc::gc_process_relocs): Call gc()->add_reference on
stashed refs.
(Target_powerpc::do_gc_mark_symbol): New function.
(Powerpc_relobj::toc_base_offset): New stub function.
(Target_powerpc): Add tp_offset, dtp_offset. Rename
got_mod_index_offset to tlsld_got_offset. Update all refs.
(Target_powerpc::Relocate::enum skip_tls): New.
(Target_powerpc::call_tls_get_addr_): New var.
(Target_powerpc::is_branch_reloc): Move to file scope.
(Target_powerpc::relocate_tls, optimize_tls_reloc): Delete.
(Target_powerpc::optimize_tls_gd, optimize_tls_ld, optimize_tls_ie):
New functions.
(Target_powerpc::enum Got_type): Delete old values, add new ones.
(powerpc_info): Correct common_pagesize for ppc64.
(at_tls_transform, needs_dynamic_reloc, use_plt_offset): New functions.
(Powerpc_relocate_functions): Add overflow check enums and functions.
Add non-shift version of rela, rela_ua. Delete all rel public
functions. Delete addr16_lo. Add addr64, addr64_u, addr32,
addr32_u, addr24, addr16_u, addr16_hi2, addr16_ha2, addr16_hi3,
addr16_ha3, addr14 functions.
(Output_data_got_powerpc::add_constant_pair): New function.
(Output_data_got_powerpc::got_base_offset): Likewise.
(Output_data_got_powerpc::do_write): Correct 64-bit got header.
(instruction constants): Sort, add some more.
(Output_data_glink::do_write): Add and use Address typedef. Use
object->toc_base_offset() stub for 64-bit.
(Target_powerpc::tlsld_got_offset): Use add_constant_pair.
(Target_powerpc::Scan::get_reference_flags): Handle more relocs.
(Target_powerpc::Scan::local, global): Emit relative dynamic reloc
for R_PPC64_TOC. Handle more relocs. Generate got entries for TLS.
Always treat .opd relocs as against locally defined symbol.
Correct condition for RELATIVE relocs.
(Target_powerpc::do_finalize_sections): Test for NULL sections.
(Target_powerpc::Relocate::relocate): Use plt call stub as value
for 32-bit syms with a plt entry. Correct ppc64 toc base
calculations. Handle TLS relocs, and more. Add overflow
checking and adjust for Powerpc_relocate_functions changes.
(Target_powerpc::relocate_for_relocatable): Handle zero r_sym.
Reinstate --emit-relocs code with FIXME.
segments.
2012-08-24 Sriraman Tallam <tmsriram@google.com>
* gold.cc (queue_middle_tasks): Call layout again when unique
segments for sections is desired.
* layout.cc (Layout::Layout): Initialize new members.
(Layout::get_output_section_flags): New function.
(Layout::choose_output_section): Call get_output_section_flags.
(Layout::layout): Make output section for mapping to a unique segment.
(Layout::insert_section_segment_map): New function.
(Layout::attach_allocated_section_to_segment): Make unique segment for
output sections marked so.
(Layout::segment_precedes): Check for unique segments when sorting.
* layout.h (Layout::Unique_segment_info): New struct.
(Layout::Section_segment_map): New typedef.
(Layout::insert_section_segment_map): New function.
(Layout::get_output_section_flags): New function.
(Layout::is_unique_segment_for_sections_specified): New function.
(Layout::set_unique_segment_for_sections_specified): New function.
(Layout::unique_segment_for_sections_specified_): New member.
(Layout::section_segment_map_): New member.
* object.cc (Sized_relobj_file<size, big_endian>::do_layout):
Rename is_gc_pass_one to is_pass_one.
Rename is_gc_pass_two to is_pass_two.
Rename is_gc_or_icf to is_two_pass.
Check for which pass based on whether symbols data is present.
Make it two pass when unique segments for sections is desired.
* output.cc (Output_section::Output_section): Initialize new
members.
* output.h (Output_section::is_unique_segment): New function.
(Output_section::set_is_unique_segment): New function.
(Output_section::is_unique_segment_): New member.
(Output_section::extra_segment_flags): New function.
(Output_section::set_extra_segment_flags): New function.
(Output_section::extra_segment_flags_): New member.
(Output_section::segment_alignment): New function.
(Output_section::set_segment_alignment): New function.
(Output_section::segment_alignment_): New member.
(Output_segment::Output_segment): Initialize is_unique_segment_.
(Output_segment::is_unique_segment): New function.
(Output_segment::set_is_unique_segment): New function.
(Output_segment::is_unique_segment_): New member.
* plugin.cc (allow_unique_segment_for_sections): New function.
(unique_segment_for_sections): New function.
(Plugin::load): Add new functions to transfer vector.
* Makefile.am (plugin_final_layout.readelf.stdout): Add readelf output.
* Makefile.in: Regenerate.
* testsuite/plugin_final_layout.sh: Check if unique segment
functionality works.
* testsuite/plugin_section_order.c (onload): Check if new interfaces
are available.
(allow_unique_segment_for_sections): New global.
(unique_segment_for_sections): New global.
(claim_file_hook): Call allow_unique_segment_for_sections.
(all_symbols_read_hook): Call unique_segment_for_sections.
2012-08-24 Sriraman Tallam <tmsriram@google.com>
* plugin-api.h (ld_plugin_allow_unique_segment_for_sections):
New interface.
(ld_plugin_unique_segment_for_sections): New interface.
(LDPT_ALLOW_UNIQUE_SEGMENT_FOR_SECTIONS): New enum val.
(LDPT_UNIQUE_SEGMENT_FOR_SECTIONS): New enum val.
(tv_allow_unique_segment_for_sections): New member.
(tv_unique_segment_for_sections): New member.
(Powerpc_relobj): Rename got2_section_ to special_.
Add opd_ent_shndx_ and opd_ent_off_ vectors.
(Powerpc_relobj::opd_shndx, init_opd, get_opd_ent, set_opd_ent,
scan_opd_relocs, do_read_relocs, opd_ent_ndx): New functions.
(Target_powerpc): Add Address typedef and invalid_address. Use
throughout.
(Target_powerpc::is_branch_reloc): New function.
(Powerpc_relocate_functions): Add Address typedef, use throughout.
(Powerpc_relocate_functions:rela, rela_ua): Correct type used
for dst_mask, value and addend.
(Powerpc_relobj::do_find_special_sections): Find .opd for 64-bit.
(ld_2_1, cror_15_15_15, cror_31_31_31): New insn constants.
(Output_data_glink::do_write): Correct toc base. Don't try to use
uint16_t for 24-bit offset. Use get_output_section_offset and
check return.
(Target_powerpc::Scan::local): Handle more relocs.
(Target_powerpc::do_finalize_sections): Set up DT_PPC64_GLINK.
(Target_powerpc::Relocate::relocate): Correct toc base calculation.
Plug in toc restoring insn after plt calls. Translate branches
to function descriptor symbols to corresponding entry point.
(Target_powerpc::relocate_for_relocatable): Check return from
get_output_section_offset.
* symtab.h: Comment typo.
* script-sections.cc (Sections_element::output_section_name): Add
keep return parameter.
(Output_section_element::match_name): Add keep return parameter.
Return the value of the keep_ member.
* script-sections.h (class Output_section): Update
output_section_name prototype.
* layout.cc (Layout::keep_input_section): New public member
function.
(Layout::choose_output_section): Pass keep parameter to
output_section_name.
* layout.h (class Layout): Add keep_input_section.
* object.cc (Sized_relobj_file::do_layout): Check for kept input
sections.
* testsuite/Makefile.am: Add a test.
* testsuite/Makefile.in: Regenerate.
* testsuite/pr14265.c: Source file for the test.
* testsuite/pr14265.t: Linker script for the test.
* testsuite/pr14265.sh: Shell script for the test.
* ld-gc/gc.exp: Add a new test.
* ld-gc/pr14265.c: Source file for the new test.
* ld-gc/pr14265.t: Linker script for the new test.
* ld-gc/pr14265.d: Expected symbol dump.
(Target::do_output_section_name): New function.
* layout.cc (Layout::choose_output_section): Call the above.
* powerpc.cc (Target_powerpc::do_output_section_name): New function.
* powerpc.h: Add more relocs.
(R_PPC_REL16*): Rename to R_POWERPC_REL16*.
gold/
* powerpc.cc: Update for renamed R_PPC_REL16 relocs.
(Output_data_got_powerpc::do_write): Don't rely on base class lookup
for replace_constant call.
(Output_data_plt_powerpc::do_print_to_mapfile): New function.
(Output_data_glink::do_print_to_mapfile): New function.
(Target_powerpc::Scan::local): Ignore R_PPC64_TOCSAVE.
(Target_powerpc::Relocate::relocate): Likewise.
(Powerpc_relobj::do_find_special_sections): Don't use set_got2_shndx.
(Output_data_glink::add_entry,find_entry): Remove shndx param.
(class Glink_sym_ent): Rename from struct Glink_sym_ent. Remove
all references to shndx_. Handle special case for R_PPC_PLTREL24
here.
(class Glink_sym_ent_hash): Rename from struct Glink_sym_ent_hash.
(Output_data_glink::do_write): Retrieve got2_shdnx from object.
(Target_powerpc::make_plt_entry): Don't special case R_PPC_PLTREL24
here.
(Target_powerpc::Scan::global): Nor on make_plt_entry call.
(Target_powerpc::Relocate::relocate): Nor on glink->find_entry call.
(Sized_relobj_file::find_special_sections): New function.
* object.cc (Sized_relobj_file::find_shdr): New function.
(Sized_relobj_file::find_eh_frame): Use find_shdr.
(Sized_relobj_file::find_special_sections): New function, split out..
(Sized_relobj_file::do_read_symbols): ..from here.
* output.h (Output_data_got::replace_constant): New function.
(Output_data_got::num_entries): New function.
(Output_data_got::last_got_offset,set_got_size): Use num_entries.
(Output_data_got::got_offset): Protected rather than private.
(Output_data_got::replace_got_entry): New function.
* output.cc (Output_data_got::replace_got_entry): New function.
* powerpc.cc (class Powerpc_relobj): New.
(class Powerpc_relocate_functions): Delete all psymval variants or
convert to value,addend type. Delete pcrela, pcrela_unaligned.
Implement _ha functions using corresponding _hi function.
(Powerpc_relobj::find_special_sections): New function.
(Target_powerpc::do_make_elf_object): New function.
(class Output_data_got_powerpc): New.
(class Output_data_glink): New.
(class Powerpc_scan_relocatable_reloc): New.
Many more changes througout file.
PR gold/14344
* configure.ac: Add check for -gpubnames support.
* configure: Regenerate.
* testsuite/Makefile.am (gdb_index_test_1): Add check for -gpubnames
support; force -gno-pubnames.
(gdb_index_test_2, gdb_index_test_3): Add check for -gpubnames
support.
(gdb_index_test_4): New test.
* testsuite/Makefile.in: Regenerate.
* testsuite/gdb_index_test_1.sh: Refactor code into common file.
* testsuite/gdb_index_test_2.sh: Likewise.
* testsuite/gdb_index_test_3.sh: Don't look for space after colon.
* testsuite/gdb_index_test_4.sh: New script.
* testsuite/gdb_index_test_comm.sh: New script with common code;
don't look for space after colon.
* layout.cc (gdb_sections): Remove ".debug_" prefixes,
add .debug_macro.
(lines_only_debug_sections): Likewise.
(gdb_fast_lookup_sections): New static array.
(is_gdb_debug_section): Rename formal parameter.
(is_lines_only_debug_section): Likewise.
(is_gdb_fast_lookup_section): New function.
(Layout::include_section): Check for ".zdebug_" prefix; pass
section name suffix to is_gdb_debug_section, et al.; check for
fast-lookup sections when building .gdb_index.
* options.h (--strip-debug-gdb): Update GDB version number.
Alan Modra
Walter Lee
Ian Lance Taylor
Sterling Augustine
Cary Coutant
H.J. Lu
Andreas Schwab
Sriraman Tallam
Nick Clifton
Roland McGrath
Rafael Ávila de Espíndola
Doug Kwan