elfcpp/ChangeLog:
2014-09-17 Han Shen <shenhan@google.com>
* aarch64.h (R_AARCH64_TLS_DTPREL64): Switch enum value with ...
(R_AARCH64_TLS_DTPMOD64): ... enum value.
gold/ChangeLog:
2014-09-17 Han Shen <shenhan@google.com>
Jing Yu <jingyu@google.com>
* aarch64-reloc.def: Add TLSGD_ADR_PAGE21, TLSGD_ADD_LO12_NC,
TLSDESC_ADR_PAGE21, TLSDESC_LD64_LO12, TLSDESC_ADD_LO12, TLSDESC_CALL.
* aarch64.cc (Target_aarch64): Add data members
got_irelative_, got_tlsdesc_, rela_irelative_, got_mod_index_offset_,
tlsdesc_reloc_info_, tls_base_symbol_defined_. Initialize them in
constructor.
(Target_aarch64::do_reloc_symbol_index): New method.
(Target_aarch64::do_reloc_addend): New method.
(Target_aarch64::add_tlsdesc_info): New method.
(Target_aarch64::do_dynsym_value): New method.
(Target_aarch64::do_make_data_plt): Add new parameters: got,
got_irelative. Pass them to Output_data_plt_aarch64_standard.
(Target_aarch64::make_data_plt): Add new parameters: got,
got_irelative. Pass them to do_make_data_plt.
(Target_aarch64::Relocate): Add skip_call_tls_get_addr_ variable.
(Target_aarch64::Relocate:tls_gd_to_le): New method.
(Target_aarch64::Relocate:tls_ie_to_le): New method.
(Target_aarch64::Relocate:tls_desc_gd_to_le): New method.
(Target_aarch64::Relocate:tls_desc_gd_to_ie): New method.
(Target_aarch64::got_tlsdesc_section): New method.
(Target_aarch64::make_local_ifunc_plt_entry): New method.
(Target_aarch64::define_tls_base_symbol): New method.
(Target_aarch64::reserve_tlsdesc_entries): New method.
(Target_aarch64::got_mod_index_entry): New method.
(Target_aarch64::rela_tlsdesc_section): New method.
(Target_aarch64::rela_irelative_section): New method.
(Target_aarch64::Tlsdesc_info): New struct.
(Target_aarch64::got_section): Create .got.plt space for IRELATIVE
relocations and tlsdesc relocations.
(Target_aarch64::optimize_tls_reloc): Implement method.
(Output_data_plt_aarch64): Add member variables: tlsdesc_rel_, got_,
got_irelative_, irelative_count_, tlsdesc_got_offset_. Initialize them
in constructor.
(Output_data_plt_aarch64::reserve_tlsdesc_entry): New method.
(Output_data_plt_aarch64::has_tlsdesc_entry): New method.
(Output_data_plt_aarch64::get_tlsdesc_got_offset): New method.
(Output_data_plt_aarch64::get_tlsdesc_plt_offset): New method.
(Output_data_plt_aarch64::rela_tlsdesc): New method.
(Output_data_plt_aarch64::rela_irelative): New method.
(Output_data_plt_aarch64::entry_count): Count IRELATIVE relocations.
(Output_data_plt_aarch64::first_plt_entry_offset): Add const attribute.
(Output_data_plt_aarch64::get_plt_tlsdesc_entry_size): New method.
(Output_data_plt_aarch64::fill_tlsdesc_entry): New method.
(Output_data_plt_aarch64::do_get_plt_tlsdesc_entry_size): New method.
(Output_data_plt_aarch64::do_fill_tlsdesc_entry): New method.
(Output_data_plt_aarch64_standard): New member variables:
plt_tlsdesc_entry_size, tlsdesc_plt_entry.
(Output_data_plt_aarch64_standard::Output_data_plt_aarch64_standard):
New parameter: got, got_irelative.
(Output_data_plt_aarch64_standard::do_get_plt_entry_size): New method.
(Output_data_plt_aarch64_standard::do_fill_tlsdesc_entry): New method.
(Output_data_plt_aarch64::do_write): Replace got_address with
gotplt_address. Add irelative_count_ to count. Write tlsdesc entry.
(AArch64_relocate_functions::update_movnz): New method.
(AArch64_relocate_functions): Correct format.
(AArch64_relocate_functions::movnz): New method.
(Target_aarch64::Scan::local): Correct format. Move r_sym, got to
before the switch. Add new cases to switch.
Check ie_to_le relaxation on tlsie relocations. Add code handling
tlsgd tlsdesc cases.
(Target_aarch64::Scan::global): Move arp to front. Do copy_reloc when
needed. Add new cases to switch. Insert dynamic RELATIVE relocation
when needed. Add code handling tlsgd, tlsie, tlsdesc cases.
Call reloc_name_in_error_message to print unsupported reloc.
(Target_aarch64::make_plt_section): Pass got_ and got_irelative_ to
make_data_plt.
(Target_aarch64::do_finalize_sections): Emit relocs to save COPY
relocs. Fill in some more dynamic tags.
(Target_aarch64::Relocate::relocate): Handle tlsgd, tlsdesc relocs.
Skip call tls_get_addr when tlsgd is relaxed.
(Target_aarch64::Relocate::relocate_tls): Correct format. Add code
handling tlsgd, tlsdesc relocs, and tls gd->le, ie->le, tlsdesc->le,
tlsdesc->ie relaxation.
bfd/
* aoutx.h (NAME (aout, machine_type)): Add mips32r6 and mips64r6.
* archures.c (bfd_architecture): Likewise.
* bfd-in2.h (bfd_architecture): Likewise.
(bfd_reloc_code_real): Add relocs BFD_RELOC_MIPS_21_PCREL_S2,
BFD_RELOC_MIPS_26_PCREL_S2, BFD_RELOC_MIPS_18_PCREL_S3 and
BFD_RELOC_MIPS_19_PCREL_S2.
* cpu-mips.c (arch_info_struct): Add mips32r6 and mips64r6.
* elf32-mips.c: Define relocs R_MIPS_PC21_S2, R_MIPS_PC26_S2
R_MIPS_PC18_S3, R_MIPS_PC19_S2, R_MIPS_PCHI16 and R_MIPS_PCLO16.
(mips_reloc_map): Add entries for BFD_RELOC_MIPS_21_PCREL_S2,
BFD_RELOC_MIPS_26_PCREL_S2, BFD_RELOC_MIPS_18_PCREL_S3,
BFD_RELOC_MIPS_19_PCREL_S2, BFD_RELOC_HI16_S_PCREL and
BFD_RELOC_LO16_PCREL.
* elf64-mips.c: Define REL, and RELA relocations R_MIPS_PC21_S2,
R_MIPS_PC26_S2, R_MIPS_PC18_S3, R_MIPS_PC19_S2, R_MIPS_PCHI16
and R_MIPS_PCLO16.
(mips_reloc_map): Add entries for BFD_RELOC_MIPS_21_PCREL_S2,
BFD_RELOC_MIPS_26_PCREL_S2, BFD_RELOC_MIPS_18_PCREL_S3,
BFD_RELOC_MIPS_19_PCREL_S2, BFD_RELOC_HI16_S_PCREL and
BFD_RELOC_LO16_PCREL.
* elfn32-mips.c: Likewise.
* elfxx-mips.c (MIPSR6_P): New define.
(mipsr6_exec_plt_entry): New array.
(hi16_reloc_p): Add support for R_MIPS_PCHI16.
(lo16_reloc_p): Add support for R_MIPS_PCLO16.
(aligned_pcrel_reloc_p): New function.
(mips_elf_relocation_needs_la25_stub): Add support for relocs:
R_MIPS_PC21_S2 and R_MIPS_PC26_S2.
(mips_elf_calculate_relocation): Add support for relocs:
R_MIPS_PC21_S2, R_MIPS_PC26_S2, R_MIPS_PC18_S3, R_MIPS_PC19_S2,
R_MIPS_PCHI16 and R_MIPS_PCLO16.
(_bfd_elf_mips_mach): Add support for mips32r6 and mips64r6.
(mips_elf_add_lo16_rel_addend): Add support for R_MIPS_PCHI16.
(_bfd_mips_elf_check_relocs): Add support for relocs:
R_MIPS_PC21_S2 and R_MIPS_PC26_S2.
(_bfd_mips_elf_relocate_section): Add a check for unaligned
pc relative relocs.
(_bfd_mips_elf_finish_dynamic_symbol): Add support for MIPS r6
plt entry.
(mips_set_isa_flags): Add support for mips32r6 and mips64r6.
(_bfd_mips_elf_print_private_bfd_data): Likewise.
(mips_32bit_flags_p): Add support for mips32r6.
* libbfd.h (bfd_reloc_code_real_names): Add entries for
BFD_RELOC_MIPS_21_PCREL_S2, BFD_RELOC_MIPS_26_PCREL_S2,
BFD_RELOC_MIPS_18_PCREL_S3 and BFD_RELOC_MIPS_19_PCREL_S2.
* reloc.c: Document relocs BFD_RELOC_MIPS_21_PCREL_S2,
BFD_RELOC_MIPS_26_PCREL_S2, BFD_RELOC_MIPS_18_PCREL_S3 and
BFD_RELOC_MIPS_19_PCREL_S2.
binutils/
* readelf.c (get_machine_flags): Add support for mips32r6 and
mips64r6.
elfcpp/
* mips.h (E_MIPS_ARCH_32R6, E_MIPS_ARCH_64R6): New enum constants.
gas/
* config/tc-mips.c (mips_nan2008): New static global.
(mips_flag_nan2008): Removed.
(LL_SC_FMT): New define.
(COP12_FMT): Updated.
(ISA_IS_R6): New define.
(ISA_HAS_64BIT_REGS): Add mips64r6.
(ISA_HAS_DROR): Likewise.
(ISA_HAS_64BIT_FPRS): Add mips32r6 and mips64r6.
(ISA_HAS_ROR): Likewise.
(ISA_HAS_ODD_SINGLE_FPR): Likewise.
(ISA_HAS_MXHC1): Likewise.
(hilo_interlocks): Likewise.
(md_longopts): Likewise.
(ISA_HAS_LEGACY_NAN): New define.
(options): Add OPTION_MIPS32R6 and OPTION_MIPS64R6.
(mips_ase): Add field rem_rev.
(mips_ases): Updated to add which ISA an ASE was removed in.
(mips_isa_rev): Add support for mips32r6 and mips64r6.
(mips_check_isa_supports_ase): Add support to check if an ASE
has been removed in the specified MIPS ISA revision.
(validate_mips_insn): Skip '-' character.
(macro_build): Likewise.
(mips_check_options): Prevent R6 working with fp32, mips16,
micromips, or branch relaxation.
(file_mips_check_options): Set R6 floating point registers to
64 bit. Also deal with the nan2008 option.
(limited_pcrel_reloc_p): Add relocs: BFD_RELOC_MIPS_21_PCREL_S2,
BFD_RELOC_MIPS_26_PCREL_S2, BFD_RELOC_MIPS_18_PCREL_S3,
BFD_RELOC_MIPS_19_PCREL_S2, BFD_RELOC_HI16_S_PCREL and
BFD_RELOC_LO16_PCREL.
(operand_reg_mask): Add support for OP_SAME_RS_RT, OP_CHECK_PREV
and OP_NON_ZERO_REG.
(match_check_prev_operand): New static function.
(match_same_rs_rt_operand): New static function.
(match_non_zero_reg_operand): New static function.
(match_operand): Added entries for: OP_SAME_RS_RT, OP_CHECK_PREV
and OP_NON_ZERO_REG.
(insns_between): Added case to deal with forbidden slots.
(append_insn): Added support for relocs: BFD_RELOC_MIPS_21_PCREL_S2
and BFD_RELOC_MIPS_26_PCREL_S2.
(match_insn): Add support for operands -A, -B, +' and +". Also
skip '-' character.
(mips_percent_op): Add entries for %pcrel_hi and %pcrel_lo.
(md_parse_option): Add support for mips32r6 and mips64r6. Also
update the nan option handling.
(md_pcrel_from): Add cases for relocs: BFD_RELOC_MIPS_21_PCREL_S2,
BFD_RELOC_MIPS_26_PCREL_S2.
(mips_force_relocation): Prevent forced relaxation for MIPS r6.
(md_apply_fix): Add support for relocs: BFD_RELOC_MIPS_21_PCREL_S2,
BFD_RELOC_MIPS_26_PCREL_S2, BFD_RELOC_MIPS_18_PCREL_S3,
BFD_RELOC_MIPS_19_PCREL_S2, BFD_RELOC_HI16_S_PCREL and
BFD_RELOC_LO16_PCREL.
(s_mipsset): Add support for mips32r6 and mips64r6.
(s_nan): Update to support the new nan2008 framework.
(tc_gen_reloc): Add relocs: BFD_RELOC_MIPS_21_PCREL_S2,
BFD_RELOC_MIPS_26_PCREL_S2, BFD_RELOC_MIPS_18_PCREL_S3,
BFD_RELOC_MIPS_19_PCREL_S2, BFD_RELOC_HI16_S_PCREL and
BFD_RELOC_LO16_PCREL.
(mips_elf_final_processing): Updated to use the mips_nan2008.
(mips_cpu_info_table): Add entries for mips32r6 and mips64r6.
(macro): Enable ldc2, sdc2, ll, lld, swc2, sc, scd, cache, pref
macros for R6.
(mips_fix_adjustable): Make PC relative R6 relocations relative
to the symbol and not the section.
* configure.ac: Add support for mips32r6 and mips64r6.
* configure: Regenerate.
* doc/c-mips.texi: Document the -mips32r6 and -mips64r6 command line
options.
* doc/as.texinfo: Likewise.
gas/testsuite/
* gas/mips/24k-triple-stores-1.s: If testing for r6 prevent
non-supported instructions from being tested.
* gas/mips/24k-triple-stores-2.s: Likewise.
* gas/mips/24k-triple-stores-3.s: Likewise.
* gas/mips/24k-triple-stores-6.s: Likewise.
* gas/mips/beq.s: Likewise.
* gas/mips/eva.s: Likewise.
* gas/mips/ld-zero-3.s: Likewise.
* gas/mips/mips32-cp2.s: Likewise.
* gas/mips/mips32.s: Likewise.
* gas/mips/mips4.s: Likewise.
* gas/mips/add.s: Don't test the add instructions if r6, and
add padding.
* gas/mips/add.d: Check for a triple dot not a nop at the end of the
disassembly output.
* gas/mips/micromips@add.d: Likewise.
* gas/mips/mipsr6@24k-branch-delay-1.d: New file.
* gas/mips/mipsr6@24k-triple-stores-1.d: New file.
* gas/mips/mipsr6@24k-triple-stores-2-llsc.d: New file.
* gas/mips/mipsr6@24k-triple-stores-2.d: New file.
* gas/mips/mipsr6@24k-triple-stores-3.d: New file.
* gas/mips/mipsr6@24k-triple-stores-6.d: New file.
* gas/mips/mipsr6@add.d: New file.
* gas/mips/mipsr6@attr-gnu-4-1-msingle-float.l: New file.
* gas/mips/mipsr6@attr-gnu-4-1-msingle-float.s: New file.
* gas/mips/mipsr6@attr-gnu-4-1-msoft-float.l: New file.
* gas/mips/mipsr6@attr-gnu-4-1-msoft-float.s: New file.
* gas/mips/mipsr6@attr-gnu-4-2-mdouble-float.l: New file.
* gas/mips/mipsr6@attr-gnu-4-2-mdouble-float.s: New file.
* gas/mips/mipsr6@beq.d: New file.
* gas/mips/mipsr6@bge.d: New file.
* gas/mips/mipsr6@bgeu.d: New file.
* gas/mips/mipsr6@blt.d: New file.
* gas/mips/mipsr6@bltu.d: New file.
* gas/mips/mipsr6@branch-misc-1.d: New file.
* gas/mips/mipsr6@branch-misc-2-64.d: New file.
* gas/mips/mipsr6@branch-misc-2pic-64.d: New file.
* gas/mips/mipsr6@branch-misc-4-64.d: New file.
* gas/mips/mipsr6@cache.d: New file.
* gas/mips/mipsr6@eva.d: New file.
* gas/mips/mipsr6@jal-svr4pic-noreorder.d: New file.
* gas/mips/mipsr6@jal-svr4pic.d: New file.
* gas/mips/mipsr6@ld-zero-2.d: New file.
* gas/mips/mipsr6@ld-zero-3.d: New file.
* gas/mips/mipsr6@loc-swap-dis.d: New file.
* gas/mips/mipsr6@mips32-cp2.d: New file.
* gas/mips/mipsr6@mips32-imm.d: New file.
* gas/mips/mipsr6@mips32.d: New file.
* gas/mips/mipsr6@mips32r2.d: New file.
* gas/mips/mipsr6@mips4-fp.d: New file.
* gas/mips/mipsr6@mips4-fp.l: New file.
* gas/mips/mipsr6@mips4-fp.s: New file.
* gas/mips/mipsr6@mips4.d: New file.
* gas/mips/mipsr6@mips5-fp.d: New file.
* gas/mips/mipsr6@mips5-fp.l: New file.
* gas/mips/mipsr6@mips5-fp.s: New file.
* gas/mips/mipsr6@mips64.d: New file.
* gas/mips/mipsr6@msa-branch.d: New file.
* gas/mips/mipsr6@msa.d: New file.
* gas/mips/mipsr6@pref.d: New file.
* gas/mips/mipsr6@relax-swap3.d: New file.
* gas/mips/r6-64-n32.d: New file.
* gas/mips/r6-64-n64.d: New file.
* gas/mips/r6-64-removed.l: New file.
* gas/mips/r6-64-removed.s: New file.
* gas/mips/r6-64.s: New file.
* gas/mips/r6-attr-none-double.d: New file.
* gas/mips/r6-n32.d: New file.
* gas/mips/r6-n64.d: New file.
* gas/mips/r6-removed.l: New file.
* gas/mips/r6-removed.s: New file.
* gas/mips/r6.d: New file.
* gas/mips/r6.s: New file.
* gas/mips/mipsr6@mips32-dsp.d: New file.
* gas/mips/mipsr6@mips32-dspr2.d: New file.
* gas/mips/mipsr6@mips32r2-ill.l: New file.
* gas/mips/mipsr6@mips32r2-ill.s: New file.
* gas/mips/cache.s: Add r6 instruction varients.
* gas/mips/mips.exp: Add support for the mips32r6 and mips64r6
architectures. Also prevent non r6 supported tests from running.
Finally, add in support for running the new r6 tests.
(run_dump_test_arch): Add support for mipsr6 tests.
(run_list_test_arch): Add support for using files of the
form arch@testname.l .
include/elf/
* mips.h: Add relocs: R_MIPS_PC21_S2, R_MIPS_PC26_S2, R_MIPS_PC18_S3,
R_MIPS_PC19_S2, R_MIPS_PCHI16 and R_MIPS_PCLO16.
(E_MIPS_ARCH_32R6): New define.
(E_MIPS_ARCH_64R6): New define.
include/opcode/
* mips.h (mips_operand_type): Add new entries: OP_SAME_RS_RT,
OP_CHECK_PREV and OP_NON_ZERO_REG. Add descriptions for the MIPS R6
instruction arguments: -a, -b, -d, -s, -t, -u, -v, -w, -x, -y, -A, -B,
+I, +O, +R, +:, +\, +", +;
(mips_check_prev_operand): New struct.
(INSN2_FORBIDDEN_SLOT): New define.
(INSN_ISA32R6): New define.
(INSN_ISA64R6): New define.
(INSN_UPTO32R6): New define.
(INSN_UPTO64R6): New define.
(mips_isa_table): Add INSN_UPTO32R6 and INSN_UPTO64R6.
(ISA_MIPS32R6): New define.
(ISA_MIPS64R6): New define.
(CPU_MIPS32R6): New define.
(CPU_MIPS64R6): New define.
(cpu_is_member): Add cases for CPU_MIPS32R6, and CPU_MIPS64R6.
ld/
* ldmain.c (get_emulation): Add support for -mips32r6 and -mips64r6.
opcodes/
* mips-dis.c (mips_arch_choices): Add entries for mips32r6 and
mips64r6.
(parse_mips_dis_option): Allow MSA and virtualization support for
mips64r6.
(mips_print_arg_state): Add fields dest_regno and seen_dest.
(mips_seen_register): New function.
(print_insn_arg): Refactored code to use mips_seen_register
function. Add support for OP_SAME_RS_RT, OP_CHECK_PREV and
OP_NON_ZERO_REG. Changed OP_REPEAT_DEST_REG case to print out
the register rather than aborting.
(print_insn_args): Add length argument. Add code to correctly
calculate the instruction address for pc relative instructions.
(validate_insn_args): New static function.
(print_insn_mips): Prevent jalx disassembling for r6. Use
validate_insn_args.
(print_insn_micromips): Use validate_insn_args.
all the arguments are valid.
* mips-formats.h (PREV_CHECK): New define.
* mips-opc.c (decode_mips_operand): Add support for -a, -b, -d, -s,
-t, -u, -v, -w, -x, -y, -A, -B, +I, +O, +R, +:, +\, +", +;
(RD_pc): New define.
(FS): New define.
(I37): New define.
(I69): New define.
(mips_builtin_opcodes): Add MIPS R6 instructions. Exclude recoded
MIPS R6 instructions from MIPS R2 instructions.
elfcpp/ChangeLog:
2014-08-08 Han Shen <shenhan@google.com>
* aarch64.h (withdrawn): Replaced with R_AARCH64_withdrawn.
2014-08-08 Jing Yu <jingyu@google.com>
Han Shen <shenhan@google.com>
* Makefile.am (HFILES): Add aarch64-reloc-property.h.
(DEFFILES): add aarch64-reloc.def.
(TARGETSOURCES): Add aarch64-reloc-property.cc.
(ALL_TARGETOBJS): Add aarch64-reloc-property.$(OBJEXT).
* Makefile.in: Regenerate.
* aarch64-reloc-property.cc: New file.
* aarch64-reloc-property.h: New file.
* aarch64-reloc.def: New file.
* aarch64.cc: Include aarch64-reloc-property.h. Replace spaces
with tab to make the format consistent.
(Output_data_got_aarch64::symbol_table_): New method.
(Target_aarch64::do_plt_address_for_global): New method.
(Target_aarch64::do_plt_address_for_local): New method.
(Target_aarch64::do_select_as_default_target): New method.
(Target_aarch64::do_make_data_plt): New method.
(Target_aarch64::make_data_plt): New method.
(Output_data_plt_aarch64::has_irelative_section): New method.
(Output_data_plt_aarch64::address_for_global): New method.
(Output_data_plt_aarch64::address_for_local): New method.
(Output_data_plt_aarch64::irelative_rel_): New parameter.
(Output_data_plt_aarch64::add_entry): Implement contents.
(Output_data_plt_aarch64::set_final_data_size): Fix typo.
(Output_data_plt_aarch64::do_write): Remove useless got_base. Set
the got_pov entry to plt0.
(Output_data_plt_aarch64_standard::do_fill_first_plt_entry):
Implement contents.
(Output_data_plt_aarch64_standard::do_fill_plt_entry): Implement.
(AArch64_howto): New struct.
(aarch64_howto[]): New static const array.
(AArch64_relocate_functions): New class.
(Target_aarch64::Scan::get_reference_flags): Remove method.
(Target_aarch64::Scan::local): Implement to support a few relocations.
(Target_aarch64::Scan::global): Implement to support a few relocations.
(Target_aarch64::make_plt_section): Implement contents.
(Target_aarch64::make_plt_entry): Implement contents.
(Target_aarch64::do_finalize_sections): Implement contents.
(Target_aarch64::Relocate::relocate): Implement a few relocations.
(Target_aarch64::relocate_section): Implement contents.
Initial patch to enable gold aarch64 backend.
This patch is just a skeleton which almost does nothing.
It does not support ILP32 now.
gold/ChangeLog:
* aarch64.cc: New file
* Makefile.am (TARGETSOURCES): Add aarch64.cc
(ALL_TARGETOBJS): Add aarch64.$(OBJEXT)
* Makefile.in: Regenerate.
* configure.tgt: Add entries for aarch64*.
* configure.ac: Likewise.
* configure: Likewise.
elfcpp/ChangeLog:
* aarch64.h: New file. New enums for aarch64-elf64 relocations.
* elfcpp.h (EM_AARCH64, SHT_AARCH64_ATTRIBUTES, PT_AARCH64_ARCHEXT,
PT_AARCH64_UNWIND): New enum constant.
This adds support for "func@localentry", an expression that returns the
ELFv2 local entry point address of function "func". I've excluded
dynamic relocation support because that obviously would require glibc
changes.
include/elf/
* ppc64.h (R_PPC64_REL24_NOTOC, R_PPC64_ADDR64_LOCAL): Define.
bfd/
* elf64-ppc.c (ppc64_elf_howto_raw): Add R_PPC64_ADDR64_LOCAL entry.
(ppc64_elf_reloc_type_lookup): Support R_PPC64_ADDR64_LOCAL.
(ppc64_elf_check_relocs): Likewise.
(ppc64_elf_relocate_section): Likewise.
* Add BFD_RELOC_PPC64_ADDR64_LOCAL.
* bfd-in2.h: Regenerate.
* libbfd.h: Regenerate.
gas/
* config/tc-ppc.c (ppc_elf_suffix): Support @localentry.
(md_apply_fix): Support R_PPC64_ADDR64_LOCAL.
ld/testsuite/
* ld-powerpc/elfv2-2a.s, ld-powerpc/elfv2-2b.s: New files.
* ld-powerpc/elfv2-2exe.d, ld-powerpc/elfv2-2so.d: New files.
* ld-powerpc/powerpc.exp: Run new test.
elfcpp/
* powerpc.h (R_PPC64_REL24_NOTOC, R_PPC64_ADDR64_LOCAL): Define.
gold/
* powerpc.cc (Target_powerpc::Scan::local, global): Support
R_PPC64_ADDR64_LOCAL.
(Target_powerpc::Relocate::relocate): Likewise.
elfcpp/
* powerpc.h (EF_PPC64_ABI): New enum constant.
(STO_PPC64_LOCAL_BIT, STO_PPC64_LOCAL_MASK): Likewise.
(ppc64_decode_local_entry): New function.
(ppc64_encode_local_entry): Likewise.
gold/
* powerpc.cc (Powerpc_relobj::abiversion, set_abiversion,
ppc64_local_entry_offset, ppc64_local_entry_offset,
do_read_symbols): New functions.
(Powerpc_relobj::e_flags_, st_other_): New vars.
(Powerpc_relobj::Powerpc_relobj): Call set_abiversion.
(Powerpc_dynobj::abiversion, set_abiversion): New functions.
(Powerpc_relobj::e_flags_): New var.
(Target_powerpc::first_plt_entry_offset, plt_entry_size): Inline
and adjust for ELFv2.
(Target_powerpc::abiversion, set_abiversion, stk_toc): New functions.
(Powerpc_relobj::do_find_special_sections): Check no .opd in ELFv2.
(Powerpc_dynobj::do_find_special_sections): Likewise.
(Target_powerpc::do_define_standard_symbols): Define ".TOC.".
(Target_powerpc::Branch_info::make_stub): Adjust stub destination
to ELFv2 local entry.
(Target_powerpc::do_relax): No thread safe barriers needed for
ELFv2.
(Output_data_plt_powerpc::initial_plt_entry_size_,
plt_entry_size): Delete. Replace all uses with
first_plt_entry_offset() and plt_entry_size().
(Output_data_plt_powerpc::Output_data_plt_powerpc): Remove
reserved_size parm. Update callers.
(Output_data_plt_powerpc::entry_count): Update.
(Output_data_plt_powerpc::first_plt_entry_offset): Make private
and use Target_powerpc::first_plt_entry_offset().
(Output_data_plt_powerpc::get_plt_entry_size): Similarly and
rename to plt_entry_size.
(Output_data_plt_powerpc::add_ifunc_entry,
add_local_ifunc_entry): Adjust reloc for ELFv2.
(glink_eh_frame_fde_64): Rename to glink_eh_frame_fde_64v1.
(glink_eh_frame_fde_64v2): New.
(Stub_table::plt_call_size): Support ELFv2 sizing.
(Output_data_glink::add_eh_frame): Use the new FDE.
(Output_data_glink::set_final_data_size): Adjust for ELFv2 glink.
(Stub_table::do_write): Write ELFv2 stubs and glink.
(Target_powerpc::Relocate::relocate): Replaces nop after call
with ld 2,24(1) and adjust local offset destination for ELFv2.
This changes the behaviour of @h and @ha on PowerPC64 to report errors
on 32-bit overflow. The motivation for this change is that on
PowerPC64, most uses of @h and @ha modifiers and their corresponding
relocations are to build up 32-bit offsets. We'd like to know when
such offsets overflow. Only rarely do people use @h or @ha with the
high 32-bit modifiers to build a 64-bit constant. Those uses will now
need to use two new modifiers, @high and @higha, if the constant isn't
known at assembly time. For now, we won't report overflow at assembly
time..
This also fixes an error when applying some of the HIGHER and HIGHEST
relocations.
include/elf/
* ppc64.h (R_PPC64_ADDR16_HIGH, R_PPC64_ADDR16_HIGHA,
R_PPC64_TPREL16_HIGH, R_PPC64_TPREL16_HIGHA,
R_PPC64_DTPREL16_HIGH, R_PPC64_DTPREL16_HIGHA): New.
(IS_PPC64_TLS_RELOC): Match new tls relocs.
bfd/
* reloc.c (BFD_RELOC_PPC64_ADDR16_HIGH, BFD_RELOC_PPC64_ADDR16_HIGHA,
BFD_RELOC_PPC64_TPREL16_HIGH, BFD_RELOC_PPC64_TPREL16_HIGHA,
BFD_RELOC_PPC64_DTPREL16_HIGH, BFD_RELOC_PPC64_DTPREL16_HIGHA): New.
* elf64-ppc.c (ppc64_elf_howto_raw): Add entries for new relocs.
Make all _HA and _HI relocs report signed overflow.
(ppc64_elf_reloc_type_lookup): Handle new relocs.
(must_be_dyn_reloc, ppc64_elf_check_relocs): Likewise.
(dec_dynrel_count, ppc64_elf_relocate_section): Likewise.
(ppc64_elf_relocate_section): Don't apply 0x8000 adjust to
R_PPC64_TPREL16_HIGHER, R_PPC64_TPREL16_HIGHEST,
R_PPC64_DTPREL16_HIGHER, and R_PPC64_DTPREL16_HIGHEST.
* libbfd.h: Regenerate.
* bfd-in2.h: Regenerate.
gas/
* config/tc-ppc.c (SEX16): Don't mask.
(REPORT_OVERFLOW_HI): Define as zero.
(ppc_elf_suffix): Support @high, @higha, @dtprel@high, @dtprel@higha,
@tprel@high, and @tprel@higha modifiers.
(md_assemble): Ignore X_unsigned when applying 16-bit insn fields.
Add (disabled) code to check @h and @ha reloc overflow for powerpc64.
Handle new relocs.
(md_apply_fix): Similarly.
elfcpp/
* powerpc.h (R_PPC64_ADDR16_HIGH, R_PPC64_ADDR16_HIGHA,
R_PPC64_TPREL16_HIGH, R_PPC64_TPREL16_HIGHA,
R_PPC64_DTPREL16_HIGH, R_PPC64_DTPREL16_HIGHA): Define.
gold/
* powerpc.cc (Target_powerpc::Scan::check_non_pic): Handle new relocs.
(Target_powerpc::Scan::global, local): Likewise.
(Target_powerpc::Relocate::relocate): Likewise. Check for overflow
on all ppc64 @h and @ha relocs.
* elf32-arm.c (elf32_arm_print_private_bfd_data): Recognise and
display the new ARM hard-float/soft-float ABI flags for EABI_VER5
(elf32_arm_post_process_headers): Add the hard-float/soft-float
ABI flag as appropriate for ET_DYN/ET_EXEC in EABI_VER5.
binutils:
* readelf.c (decode_ARM_machine_flags): Recognise and display the
new ARM hard-float/soft-float ABI flags for EABI_VER5. Split out
the code for EABI_VER4 and EABI_VER5 to allow this.
elfcpp:
* arm.h: New enum for EABI soft- and hard-float flags.
gold:
* gold.cc (Target_arm::do_adjust_elf_header): Add the
hard-float/soft-float ABI flag as appropriate for ET_DYN/ET_EXEC
in EABI_VER5.
include:
* elf/arm.h (EF_ARM_ABI_FLOAT_SOFT): New define.
(EF_ARM_ABI_FLOAT_HARD): Likewise.
ld/testsuite:
* ld-arm/eabi-hard-float.s: New test source.
* ld-arm/eabi-soft-float.s: New test source.
* ld-arm/eabi-hard-float.d: New test.
* ld-arm/eabi-soft-float.d: New test.
* ld-arm/eabi-soft-float-ABI4.d: New test.
* ld-arm/eabi-soft-float-r.d: New test.
* ld-arm/arm-elf.xp: Use the new tests.
binutils:
PR binutils/14779
* configure.in: Add checks for wchar.h and mbstate_t.
* config.in: Regenerate.
* configure: Regenerate.
* readelf.c: Conditionally include wchar.h.
(print_symbol): Conditionally use mbstate_t.
* 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.
elfcpp/
PR gold/14091
* x86_64.h (R_X86_64_RELATIVE64): New.
gold/
PR gold/14091
* x86_64.cc (Target_x86_64::Scan::local): For x32, generate
R_X86_64_RELATIVE64 instead of R_X86_64_RELATIVE in case of
R_X86_64_64.
* elfcpp_swap.h (struct Swap_aligned32): New template.
gold/
* gdb-index.cc (Gdb_index::do_write): Use Swap_aligned32 for writing
CU range table of gdb index.
elfcpp/
* sparc.h (R_SPARC_JMP_IREL): New relocation.
gold/
* sparc.cc (class Target_sparc): Add rela_ifunc_.
(Target_sparc::Target_sparc): Initialize new field.
(Target_sparc::do_plt_section_for_global): New function.
(Target_sparc::do_plt_section_for_local): New function.
(Target_sparc::reloc_needs_plt_for_ifunc): New function.
(Target_sparc::make_plt_section): New function, broken out of
make_plt_entry. Use ORDER_NON_RELRO_FIRST for ".plt".
(Target_sparc::make_plt_entry): Call make_plt_section.
(Target_sparc::make_local_ifunc_plt_entry): New function.
(Target_sparc::rela_ifunc_section): New function.
(Target_sparc::plt_section): Remove const.
(Output_data_plt_sparc): Update declarations. Define Global_ifunc
and Local_ifunc types. Add global_ifuncs_, local_ifuncs_, ifunc_rel_,
and ifunc_count_ fields.
(Output_data_plt_sparc::Output_data_plt_sparc): Initialize new fields.
(Output_data_plt_sparc::add_entry): Handle IFUNC symbols.
(Output_data_plt_sparc::add_local_ifunc_entry): New function.
(Output_data_plt_sparc::rela_ifunc): New function.
(Output_data_plt_sparc::emit_pending_ifunc_relocs): New function.
(Output_data_plt_sparc::has_ifunc_section): New function.
(Output_data_plt_sparc::entry_count): Include ifunc_count_.
(Output_data_plt_sparc::address_for_global): New function.
(Output_data_plt_sparc::address_for_local): New function.
(Output_data_plt_sparc::plt_index_to_offset): New function.
(Output_data_plt_sparc::set_final_data_size): Use plt_index_to_offset
and entry_count.
(Output_data_plt_sparc::do_write): Use first_plt_entry_offset and
entry_count.
(Target_sparc::Scan::get_reference_flags): Add R_SPARC_IRELATIVE and
R_SPARC_JMP_IREL to switch.
(Target_sparc::Scan::check_non_pic): Likewise.
(Target_sparc::Scan::local): Handle IFUNC symbols.
(Target_sparc::Scan::local): Likewise.
(Target_sparc::Relocate::relocate): Likewise, use plt_address_for_global
and plt_address_for_local.
(Target_sparc::do_finalize_sections): Call emit_pending_ifunc_relocs.
Define __rel_iplt_start and __rel_iplt_end if doing a static link.
Update DWARF enums from ../include/dwarf2.h.
* dwarf.h (enum DW_TAG): Add new DWARF-4 tags.
(enum DW_FORM): Add new DWARF-4 and Fission extensions.
(enum DW_AT): New enum.
(enum DW_LINE_EXTENDED_OPS): Add new DWARF-4 opcode.
(enum DW_ENCODING): Add new DWARF-4 encoding.
(enum DW_OP): Add new DWARF-4 opcodes.
(enum DW_CHILDREN): New enum.
(enum DW_LANG): New enum.
gold/
* reduced_debug_output.cc
(Output_reduced_debug_info_section::get_die_end): Add new FORM
codes to switch.
* elfcpp.h (enum SHT): Add SHT_GNU_INCREMENTAL_SYMTAB,
SHT_GNU_INCREMENTAL_RELOCS.
gold/ChangeLog:
* archive.cc: Include incremental.h.
(Archive::Archive): Initialize incremental_info_.
(Archive::include_member): Record archive members in incremental info.
(Add_archive_symbols::run): Record begin and end of an archive in
incremental info.
(Lib_group::include_member): Record objects in incremental info.
* archive.h (Incremental_archive_entry): Forward declaration.
(Archive::set_incremental_info): New member function.
(Archive::incremental_info): New member function.
(Archive::Unused_symbol_iterator): New class.
(Archive::unused_symbols_begin): New member function.
(Archive::unused_symbols_end): New member function.
(Archive::incremental_info_): New data member.
* incremental-dump.cc (find_input_containing_global): New function.
(dump_incremental_inputs): Dump new incremental info sections.
* incremental.cc: Include symtab.h.
(Output_section_incremental_inputs): New class.
(Sized_incremental_binary::do_find_incremental_inputs_sections): Support
new incremental info sections.
(Sized_incremental_binary::do_check_inputs): Likewise.
(Incremental_inputs::report_archive): Remove.
(Incremental_inputs::report_archive_begin): New function.
(Incremental_inputs::report_archive_end): New function.
(Incremental_inputs::report_object): New function.
(Incremental_inputs::finalize_inputs): Remove.
(Incremental_inputs::report_input_section): New function.
(Incremental_inputs::report_script): Rewrite.
(Incremental_inputs::finalize): Do nothing but finalize string table.
(Incremental_inputs::create_incremental_inputs_section_data): Remove.
(Incremental_inputs::sized_create_inputs_section_data): Remove.
(Incremental_inputs::create_data_sections): New function.
(Incremental_inputs::relocs_entsize): New function.
(Output_section_incremental_inputs::set_final_data_size): New function.
(Output_section_incremental_inputs::do_write): New function.
(Output_section_incremental_inputs::write_header): New function.
(Output_section_incremental_inputs::write_input_files): New function.
(Output_section_incremental_inputs::write_info_blocks): New function.
(Output_section_incremental_inputs::write_symtab): New function.
* incremental.h (Incremental_script_entry): Forward declaration.
(Incremental_object_entry): Forward declaration.
(Incremental_archive_entry): Forward declaration.
(Incremental_inputs): Forward declaration.
(Incremental_inputs_header_data): Remove.
(Incremental_inputs_header): Remove.
(Incremental_inputs_header_write): Remove.
(Incremental_inputs_entry_data): Remove.
(Incremental_inputs_entry): Remove.
(Incremental_inputs_entry_write): Remove.
(enum Incremental_input_type): Add INCREMENTAL_INPUT_ARCHIVE_MEMBER.
(Incremental_binary::find_incremental_inputs_sections): Add parameters.
(Incremental_binary::do_find_incremental_inputs_sections): Likewise.
(Sized_ncremental_binary::do_find_incremental_inputs_sections):
Likewise.
(Incremental_input_entry): New class.
(Incremental_script_entry): New class.
(Incremental_object_entry): New class.
(Incremental_archive_entry): New class.
(Incremental_inputs::Incremental_inputs): Initialize new data members.
(Incremental_inputs::report_inputs): Remove.
(Incremental_inputs::report_archive): Remove.
(Incremental_inputs::report_archive_begin): New function.
(Incremental_inputs::report_archive_end): New function.
(Incremental_inputs::report_object): Change prototype.
(Incremental_inputs::report_input_section): New function.
(Incremental_inputs::report_script): Change prototype.
(Incremental_inputs::get_reloc_count): New function.
(Incremental_inputs::set_reloc_count): New function.
(Incremental_inputs::create_data_sections): New function.
(Incremental_inputs::create_incremental_inputs_section_data): Remove.
(Incremental_inputs::inputs_section): New function.
(Incremental_inputs::symtab_section): New function.
(Incremental_inputs::relocs_section): New function.
(Incremental_inputs::get_stringpool): Add const.
(Incremental_inputs::command_line): Add const.
(Incremental_inputs::inputs): Remove.
(Incremental_inputs::command_line_key): New function.
(Incremental_inputs::input_file_count): New function.
(Incremental_inputs::input_files): New function.
(Incremental_inputs::relocs_entsize): New function.
(Incremental_inputs::sized_create_inputs_section_data): Remove.
(Incremental_inputs::finalize_inputs): Remove.
(Incremental_inputs::Input_info): Remove.
(Incremental_inputs::lock_): Remove.
(Incremental_inputs::inputs_): Change type.
(Incremental_inputs::inputs_map_): Remove.
(Incremental_inputs::current_object_entry_): New data member.
(Incremental_inputs::inputs_section_): New data member.
(Incremental_inputs::symtab_section_): New data member.
(Incremental_inputs::relocs_section_): New data member.
(Incremental_inputs::reloc_count_): New data member.
(Incremental_inputs_reader): New class.
(Incremental_symtab_reader): New class.
(Incremental_relocs_reader): New class.
* layout.cc (Layout::finalize): Move finalization of incremental info
and creation of incremental info sections to follow finalization of
symbol table. Set offsets for postprocessing sections.
(Layout::create_incremental_info_sections): Call
Incremental_inputs::create_data_sections. Add incremental symtab
and relocs sections. Set sh_entsize and sh_link fields. Arrange for
sections to layout after input sections.
* layout.h (struct Timespec): Forward declaration.
(Layout::incremental_inputs): Add const.
(Layout::create_incremental_info_sections): Add parameter.
* main.cc (main): Remove call to Incremental_inputs::report_inputs.
* object.cc: Include incremental.h.
(Relobj::finalize_incremental_relocs): New function.
(Sized_relobj::do_layout): Record input sections in incremental info.
* object.h (Object::output_section): New function.
(Object::output_section_offset): Moved from Relobj.
(Object::get_incremental_reloc_base): New function.
(Object::get_incremental_reloc_count): New function.
(Object::do_output_section): New function.
(Object::do_output_section_offset): Moved from Relobj.
(Object::do_get_incremental_reloc_base): New function.
(Object::do_get_incremental_reloc_count): New function.
(Object::Object): Initialize new data members.
(Relobj::output_section): Renamed do_output_section and moved to
protected.
(Relobj::output_section_offset): Moved to Object.
(Relobj::do_get_incremental_reloc_base): New function.
(Relobj::do_get_incremental_reloc_count): New function.
(Relobj::allocate_incremental_reloc_counts): New function.
(Relobj::count_incremental_reloc): New function.
(Relobj::finalize_incremental_relocs): New function.
(Relobj::next_incremental_reloc_index): New function.
(Relobj::reloc_counts_): New data member.
(Relobj::reloc_bases_): New data member.
(Sized_relobj::do_relocate_sections): Add parameter. Change caller.
(Sized_relobj::relocate_sections): Add parameter. Change all callers.
(Sized_relobj::incremental_relocs_scan): New function.
(Sized_relobj::incremental_relocs_scan_reltype): New function.
(Sized_relobj::incremental_relocs_write): New function.
(Sized_relobj::incremental_relocs_write_reltype): New function.
* plugin.cc (Plugin_manager::add_input_file): Rewrite test for
incremental link.
* readsyms.cc (Read_symbols::do_read_symbols): Move reporting of
archives and object files elsewhere.
(Add_symbols::run): Report object files here.
(Finish_group::run): Report end of archive at end of group.
* reloc.cc: Include layout.h, incremental.h.
(Sized_relobj::do_read_relocs): Need relocations for incremental link.
(Sized_relobj::do_scan_relocs): Record relocations for incremental link.
(Sized_relobj::incremental_relocs_scan): New function.
(Sized_relobj::incremental_relocs_scan_reltype): New function.
(Sized_relobj::do_relocate_sections): Write incremental relocations.
(Sized_relobj::incremental_relocs_write): New function.
(Sized_relobj::incremental_relocs_write_reltype): New function.
* script.cc (read_input_script): Rewrite test for incremental link.
Change call to Incremental_inputs::report_script.
* symtab.h (Symbol_table::first_global_index): New function.
(Symbol_table::output_count): New function.
* elfcpp.h (PN_XNUM): Define.
gold/:
* output.cc (Output_section_headers::do_sized_write): Write large
segment count to sh_info field.
(Output_file_header::do_sized_write): For large segment count,
write PN_XNUM to e_phnum field.
elfcpp/ChangeLog
* arm.h: New enums for EABI object attribute tags and values.
gold/ChangeLog
* arm.cc (attributes.h): New include.
(Arm_relobj::Arm_relobj): Initialize attributes_section_data_.
(Arm_relobj::~Arm_relobj): Delete object pointed by
attributes_section_data_.
(Arm_relobj::attributes_section_data): New method definition.
(Arm_relobj::attributes_section_data_): New data member declaration.
(Arm_dynobj::Arm_dynobj): Initialize attributes_section_data_.
(Arm_dynobj::~Arm_dynobj): Delete object pointed by
attributes_section_data_.
(Arm_dynobj::attributes_section_data): New method definition.
(Arm_dynobj::attributes_section_data_): New data member declaration.
(Target_arm::Target_arm): Initialize attributes_section_data_. Change
initialization value of may_use_blx_ to false.
(Target_arm::using_thumb2, Target_arm::using_thumb_only,
Target_arm::may_use_arm_nop, Target_arm::may_use_thumb2_nop): Use
object attributes to compute results instead of hard-coding.
(Target_arm::do_attribute_arg_type, Target_arm::do_attributes_order,
Target_arm::get_secondary_compatible_arch,
Target_arm::set_secondary_compatible_arch
Target_arm::tag_cpu_arch_combine, Target_arm::aeabi_enum_name,
Target_arm::tag_cpu_name_value, Target_arm::merge_object_attributes):
New method declarations.
(Target_arm::get_aeabi_object_attribute): New method definition.
(Target_arm::attributes_section_data_): New data member declaration.
(read_arm_attributes_section): New template definition.
(Arm_relobj::do_read_symbols): Read attributes section if it exists.
(Arm_dynobj::do_read_symbols): Ditto.
(Target_arm::do_finalize_sections): Merge attributes sections from
input. Check for BLX use after attributes section merging.
Fix __exidx_start and __exidx_end visibility. Create an
.ARM.attributes section if necessary.
(Target_arm::get_secondary_compatible_arch,
Target_arm::set_secondary_compatible_arch,
Target_arm::tag_cpu_arch_combine, Target_arm::aeabi_enum_name,
Target_arm::tag_cpu_name_value, Target_arm::merge_object_attributes,
Target_arm::do_attribute_arg_type, Target_arm::do_attributes_order):
New method definitions.
* elf_file.h: (class Elf_strtab): New class.
gold/:
* gold.cc: (queue_initial_tasks): Pass incremental_inputs to
Incremental_checker.
* incremental.cc: (INCREMENTAL_LINK_VERSION): Change type to
unsigned int.
(class Incremental_inputs_header): New class.
(Incremental_inputs_header_writer): Edit comment.
(Incremental_inputs_entry): New class.
(Incremental_inputs_entry_writer): Edit comment.
(Sized_incremental_binary::do_find_incremental_inputs_section):
Add *strtab_shndx parameter, fill it.
(Sized_incremental_binary::do_check_inputs): New method.
(Incremental_checker::can_incrementally_link_output_file): Use
Sized_incremental_binary::check_inputs.
(Incremental_inputs::report_command_line): Save command line in
command_line_.
* incremental.h:
(Incremental_binary::find_incremental_inputs_section): New
method.
(Incremental_binary::do_find_incremental_inputs_section): Add
strtab_shndx parameter.
(Incremental_binary::do_check_inputs): New pure virtual method.
(Sized_incremental_binary::do_check_inputs): Declare.
(Incremental_checker::Incremental_checker): Add incremental_inputs
parameter, use it to initialize incremental_inputs_.
(Incremental_checker::incremental_inputs_): New field.
(Incremental_checker::command_line): New method.
(Incremental_checker::inputs): New method.
(Incremental_checker::command_line_): New field.
* elfcpp_file.h: Fix header guard. Include <cstdio>.
(class Elf_recognizer): New class, code from gold/object.cc.
(Elf_file::find_section_by_type): New method.
gold/:
* incremental.cc: Include <cstdarg> and "target-select.h".
(vexplain_no_incremental): New function.
(explain_no_incremental): New function.
(Incremental_binary::error): New method.
(Sized_incremental_binary::do_find_incremental_inputs_section): New
method.
(make_sized_incremental_binary): New function.
(open_incremental_binary): New function.
(can_incrementally_link_file): Add checks if output is ELF and has
inputs section.
* incremental.h: Include "elfcpp_file.h" and "output.h".
(Incremental_binary): New class.
(Sized_incremental_binary): New class.
(open_incremental_binary): Declare.
* object.cc (is_elf_object): Use
elfcpp::Elf_recognizer::is_elf_file.
(make_elf_object): Use elfcpp::Elf_recognizer::is_valid_header.
* output.h (Output_file::filesize): New method.
