Age | Commit message (Collapse) | Author | Files | Lines |
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* elf32-msp430.c (rl78_sym_diff_handler): New function.
(msp430_howto_table): Use the new function for the SYM_DIFF reloc.
(msp430x_howto_table): Likewise.
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When building a shared lib from non-PIC objects, we'll get dynamic
text relocations. These need to move with any insns we move.
Otherwise the dynamic reloc will modify the branch, resulting in
crashes and other unpleasant behaviour.
Also, ld -r --ppc476-workaround used with sufficiently aligned PIC
objects needs a fix for emitted REL16 relocs.
bfd/
* elf64-ppc.c (ppc_elf_relocate_section): Move dynamic text
relocs with insns moved by --ppc476-workaround. Correct
output of REL16 relocs.
ld/testsuite/
* ld-powerpc/ppc476-shared.s,
* ld-powerpc/ppc476-shared.lnk,
* ld-powerpc/ppc476-shared.d,
* ld-powerpc/ppc476-shared2.d: New tests.
* ld-powerpc/powerpc.exp: Run them.
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This patch add BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14 relocation
supoprt in bfd linker.
2015-06-01 Jiong Wang <jiong.wang@arm.com>
bfd/
* elfnn-aarch64.c (aarch64_reloc_got_type): Support
BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14.
(elfNN_aarch64_final_link_relocate): Ditto.
(elfNN_aarch64_gc_swap_hook): Ditto.
(elfNN_aarch64_check_relocs): Ditto.
* elfxx-aarch64.c (_bfd_aarch64_elf_put_addend): Ditto.
ld/testsuite/
* ld-aarch64/emit-relocs-28.s: New test file.
* ld-aarch64/emit-relocs-28.d: Ditto.
* ld-aarch64/aarch64-elf.exp: Run new test.
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This patch add BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14 support in Gas.
The relocation modifier
===
:gotpage_lo14:symbol
2015-06-01 Jiong.Wang <jiong.wang@arm.com>
bfd/
* reloc.c (BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14): New entry.
* bfd-in2.h: Regenerate.
* libbfd.h: Regenerate.
* elfnn-aarch64.c (elfNN_aarch64_howto_table): New entry for
BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14.
gas/
* config/tc-aarch64.c (reloc_table): New relocation modifiers.
(md_apply_fix): Support BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14.
(aarch64_force_relocation): Ditto.
gas/testsuite/
* gas/aarch64/ilp32-basic.s: New testcase.
* gas/aarch64/ilp32-basic.d: Ditto.
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BFD_RELOC_AARCH64_TLSLE_ADD_LO12 is used to generate simplest
one-instruction addressing for TLS LE model when tls size is smaller
4K. Linker need to make sure there is no TLS offset overflow.
2015-06-01 Jiong Wang <jiong.wang@arm.com>
bfd/
* elfnn-aarch64.c (elfNN_aarch64_howto_table): Set overflow type to
complain_overflow_unsigned for BFD_RELOC_AARCH64_TLSLE_ADD_LO12.
* elfxx-aarch64.c (_bfd_aarch64_elf_resolve_relocation): Don't use
PGOFF for BFD_RELOC_AARCH64_TLSLE_ADD_LO12, that will mask off all
potential high overflowed bits.
ld/testsuite/
* ld-aarch64/tprel_add_lo12_overflow.s: New testcase.
* ld-aarch64/tprel_add_lo12_overflow.d: Nex expectation file.
* ld-aarch64/aarch64-elf.exp: Run new testcase.
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2015-06-01 Jiong Wang <jiong.wang@arm.com>
bfd/
* elfnn-aarch64.c (aarch64_reloc_got_type): Support
BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15.
(elfNN_aarch64_final_link_relocate): Ditto.
(elfNN_aarch64_gc_swap_hook): Ditto.
(elfNN_aarch64_check_relocs): Ditto.
* elfxx-aarch64.c (_bfd_aarch64_elf_put_addend): Ditto.
ld/testsuite/
* ld-aarch64/emit-relocs-313.s: New test file.
* ld-aarch64/emit-relocs-313.d: Ditto.
* ld-aarch64/aarch64-elf.exp: Run new test.
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2015-06-01 Jiong.Wang <jiong.wang@arm.com>
bfd/
* reloc.c (BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15): New entry.
* bfd-in2.h: Regenerate.
* libbfd.h: Regenerate.
* elfnn-aarch64.c (elfNN_aarch64_howto_table): New entry for
BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15.
gas/
* config/tc-aarch64.c (reloc_table): New relocation modifiers.
(md_apply_fix): Support BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15.
(aarch64_force_relocation): Ditto.
gas/testsuite/
* gas/aarch64/reloc-insn.s: New testcase.
* gas/aarch64/reloc-insn.d: Ditto.
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The specification for the Compact EH format is available at:
https://github.com/MentorEmbedded/cxx-abi/blob/master/MIPSCompactEH.pdf
2015-05-28 Catherine Moore <clm@codesourcery.com>
Bernd Schmidt <bernds@codesourcery.com>
Paul Brook <paul@codesourcery.com>
bfd/
* bfd-in2.h: Regenerated.
* elf-bfd.h (DWARF2_EH_HDR, COMPACT_EH_HDR): Define.
(COMPACT_EH_CANT_UNWIND_OPCODE): Define.
(dwarf_eh_frame_hdr_info): Move dwarf-specific fields from
eh_frame_hdr_info.
(compact_eh_frame_hdr_info): Declare.
(eh_frame_hdr_info): Redeclare with union for dwarf-specific
fields and compact-eh fields.
(elf_backend_data): Add cant_unwind_opcode and compact_eh_encoding.
(bfd_elf_section_data): Add eh_frame_entry_field.
(elf_section_eh_frame_entry): Define.
(bfd_elf_parse_eh_frame_entries): Declare.
(_bfd_elf_parse_eh_frame_entry): Declare.
(_bfd_elf_end_eh_frame_parsing): Declare.
(_bfd_elf_write_section_eh_frame_entry): Declare.
(_bfd_elf_eh_frame_entry_present): Declare.
(_bfd_elf_section_for_symbol): Declare.
* elf-eh-frame.c (bfd_elf_discard_eh_frame_entry): New function.
(bfd_elf_record_eh_frame_entry): New function.
(_bfd_elf_parse_eh_frame_entry): New function.
(_bfd_elf_parse_eh_frame): Update hdr_info field references.
(cmp_eh_frame_hdr): New function.
(add_eh_frame_hdr_terminator): New function.
(_bfd_elf_end_eh_frame_parsing): New function.
(find_merged_cie): Update hdr_info field references.
(_bfd_elf_discard_section_eh_frame): Likewise.
(_bfd_elf_discard_section_eh_frame_hdr): Add Compact EH support.
(_bfd_elf_eh_frame_entry_present): New function.
(_bfd_elf_maybe_strip_eh_frame_hdr): Add Compact EH support.
(_bfd_elf_write_section_eh_frame_entry): New function.
(_bfd_elf_write_section_eh_frame): Update hdr_info field references.
(_bfd_elf_fixup_eh_frame_hdr): New function.
(write_compact_eh_frame_hdr): New function.
(write_dwarf_eh_frame_hdr): New function.
(_bfd_elf_write_section_eh_frame_hdr): Add Compact EH support.
* elflink.c (_bfd_elf_section_for_symbol): New function.
(elf_section_ignore_discarded_relocs): Add Compact EH support.
(elf_link_input_bfd): Likewise.
(bfd_elf_final_link): Likewise.
(_bfd_elf_gc_mark): Likewise.
(bfd_elf_parse_eh_frame_entries): New function.
(bfd_elf_gc_sections): Add Compact EH support.
(bfd_elf_discard_info): Likewise.
* elfxx-mips.c: Include dwarf2.h.
(_bfd_mips_elf_compact_eh_encoding): New function.
(_bfd_mips_elf_cant_unwind_opcode): New function.
* elfxx-mips.h (_bfd_mips_elf_compact_eh_encoding): Declare.
(_bfd_mips_elf_cant_unwind_opcode): Declare.
(elf_backend_compact_eh_encoding): Define.
(elf_backend_cant_unwind_opcode): Define.
* elfxx-target.h (elf_backend_compact_eh_encoding): Provide default.
(elf_backend_cant_unwind_opcode): Provide default.
(elf_backend_data elfNN_bed): Add elf_backend_compact_eh_encoding and
elf_backend_cant_unwind_opcode.
* section.c (SEC_INFO_TYPE_EH_FRAME_ENTRY): Add definition.
gas/
* config/tc-alpha.c (all_cfi_sections): Declare.
(s_alpha_ent): Initialize all_cfi_sections.
(alpha_elf_md_end): Invoke cfi_set_sections.
* config/tc-mips.c (md_apply_fix): Handle BFD_RELOC_NONE.
(s_ehword): Use BFD_RELOC_32_PCREL.
(mips_fix_adjustable): Handle BFD_RELOC_32_PCREL.
(mips_cfi_reloc_for_encoding): New function.
* tc-mips.h (DWARF2_FDE_RELOC_SIZE): Redefine.
(DWARF2_FDE_RELOC_ENCODING): Define.
(tc_cfi_reloc_for_encoding): Define.
(mips_cfi_reloc_for_encoding): Define.
(tc_compact_eh_opcode_stop): Define.
(tc_compact_eh_opcode_pad): Define.
* doc/as.texinfo: Document Compact EH extensions.
* doc/internals.texi: Likewise.
* dw2gencfi.c (EH_FRAME_LINKONCE): Redefine.
(tc_cfi_reloc_for_encoding): Provide default.
(compact_eh): Declare.
(emit_expr_encoded): New function.
(get_debugseg_name): Add Compact EH support.
(alloc_debugseg_item): Likewise.
(cfi_set_sections): New function.
(dot_cfi_fde_data): New function.
(dot_cfi_personality_id): New function.
(dot_cfi_inline_lsda): New function.
(cfi_pseudo_table): Add cfi_fde_data, cfi_personality_id,
and cfi_inline_lsda.
(dot_cfi_personality): Add Compact EH support.
(dot_cfi_lsda): Likewise.
(dot_cfi_sections): Likewise.
(dot_cfi_startproc): Likewise.
(get_cfi_seg): Likewise.
(output_compact_unwind_data): New function.
(output_cfi_insn): Add Compact EH support.
(output_cie): Likewise.
(output_fde): Likewise.
(cfi_finish): Likewise.
(cfi_emit_eh_header): New function.
(output_eh_header): New function.
* dw2gencfi.h (cfi_set_sections): Declare.
(SUPPORT_COMPACT_EH): Define.
(MULTIPLE_FRAME_SECTIONS): Define.
New enumeration to describe the Compact EH header format.
(fde_entry): Add new fields personality_id, eh_header_type, eh_data_size,
eh_data, eh_loc and sections.
(CFI_EMIT_eh_frame, CFI_EMIT_debug_frame, CFI_EMIT_target,
CFI_EMIT_eh_frame_compact): Define.
2015-05-22 Catherine Moore <clm@codesourcery.com>
Bernd Schmidt <bernds@codesourcery.com>
gas/testsuite/
* gas/mips/mips.exp: Run new tests.
* gas/mips/compact-eh-1.s: New file.
* gas/mips/compact-eh-2.s: New file.
* gas/mips/compact-eh-3.s: New file.
* gas/mips/compact-eh-4.s: New file.
* gas/mips/compact-eh-5.s: New file.
* gas/mips/compact-eh-6.s: New file.
* gas/mips/compact-eh-7.s: New file.
* gas/mips/compact-eh-eb-1.d: New file.
* gas/mips/compact-eh-eb-2.d: New file.
* gas/mips/compact-eh-eb-3.d: New file.
* gas/mips/compact-eh-eb-4.d: New file.
* gas/mips/compact-eh-eb-5.d: New file.
* gas/mips/compact-eh-eb-6.d: New file.
* gas/mips/compact-eh-eb-7.d: New file.
* gas/mips/compact-eh-el-1.d: New file.
* gas/mips/compact-eh-el-2.d: New file.
* gas/mips/compact-eh-el-3.d: New file.
* gas/mips/compact-eh-el-4.d: New file.
* gas/mips/compact-eh-el-5.d: New file.
* gas/mips/compact-eh-el-6.d: New file.
* gas/mips/compact-eh-el-7.d: New file.
* gas/mips/compact-eh-err1.l: New file.
* gas/mips/compact-eh-err1.s: New file.
* gas/mips/compact-eh-err2.l: New file.
* gas/mips/compact-eh-err2.s: New file.
2015-05-22 Catherine Moore <clm@codesourcery.com>
include/
* bfdlink.h: Rename eh_frame_hdr to eh_frame_hdr_type.
2015-05-22 Catherine Moore <clm@codesourcery.com>
Paul Brook <paul@codesourcery.com>
ld/
* emultempl/elf32.em (gld${EMULATION_NAME}_after_open):
Add Compact EH support.
* scripttempl/elf.sc: Handle .eh_frame_entry and .gnu_extab
sections.
2015-05-22 Catherine Moore <clm@codesourcery.com>
ld/testsuite/
* ld-mips-elf/compact-eh.ld: New linker script.
* ld-mips-elf/compact-eh1.d: New.
* ld-mips-elf/compact-eh1.s: New.
* ld-mips-elf/compact-eh1a.s: New.
* ld-mips-elf/compact-eh1b.s: New.
* ld-mips-elf/compact-eh2.d: New.
* ld-mips-elf/compact-eh2.s: New.
* ld-mips-elf/compact-eh3.d: New.
* ld-mips-elf/compact-eh3.s: New.
* ld-mips-elf/compact-eh3a.s: New.
* ld-mips-elf/compact-eh4.d: New.
* ld-mips-elf/compact-eh5.d: New.
* ld-mips-elf/compact-eh6.d: New.
* ld-mips-elf/mips-elf.exp: Run new tests.
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When pointer equality needed, we can't replace PLT relocations with
GOT relocations for -z now. This patch checks if pointer equality is
needed before converting PLT relocations to GOT relocations.
bfd/
PR binutils/18458
* elf32-i386.c (elf_i386_check_relocs): Create .plt.got section
for now binding only if pointer equality isn't needed.
(elf_i386_allocate_dynrelocs): Use .plt.got section for now
binding only if pointer equality isn't needed.
* elf64-x86-64.c (elf_x86_64_check_relocs): Create .plt.got
section for now binding only if pointer equality isn't needed.
(elf_x86_64_allocate_dynrelocs): Use .plt.got section for now
binding only if pointer equality isn't needed.
ld/testsuite/
PR binutils/18458
* ld-elf/shared.exp (build_tests): Build libpr18458a.so and
libpr18458b.so.
(run_tests): Run pr18458 test.
* ld-elf/pr18458a.c: New file.
* ld-elf/pr18458b.c: Likewise.
* ld-elf/pr18458c.c: Likewise.
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Extra relocations may be added to the .rel.plt/.rela.plt section, which
are unrelated to PLT. We should skip them when retrieving PLT entry
symbol values.
PR binutils/18437
* elf32-i386.c (elf_i386_get_plt_sym_val): Skip extra relocations
in .rel.plt/.rela.plt.
* elf64-x86-64.c (elf_x86_64_get_plt_sym_val): Likewise.
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2015-05-19 Jiong Wang <jiong.wang@arm.com>
bfd/
* elfnn-aarch64.c (aarch64_tls_transition_without_check): Sort
relocation case labels alphabetically.
(elfNN_aarch64_final_link_relocate): Ditto.
(elfNN_aarch64_tls_relax): Ditto.
(elfNN_aarch64_relocate_section): Ditto.
(elfNN_aarch64_gc_sweep_hook): Ditto.
(elfNN_aarch64_check_relocs): Ditto.
* elfxx-aarch64.c (_bfd_aarch64_elf_put_addend): Ditto.
(_bfd_aarch64_elf_resolve_relocation): Ditto.
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bfd/
* elfnn-aarch64.c (elfNN_aarch64_adjust_dynamic_symbol): Rewrite comments.
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There is no need for PLT relocations with -z now. We can use GOT
relocations, which take less space, instead and replace 16-byte .plt
entres with 8-byte .plt.got entries.
bfd/
* elf32-i386.c (elf_i386_check_relocs): Create .plt.got section
for now binding.
(elf_i386_allocate_dynrelocs): Use .plt.got section for now
binding.
* elf64-x86-64.c (elf_x86_64_check_relocs): Create .plt.got
section for now binding.
(elf_x86_64_allocate_dynrelocs): Use .plt.got section for now
binding.
ld/testsuite/
* ld-i386/i386.exp: Run PR ld/17689 tests with -z now.
* ld-x86-64/x86-64.exp: Likewise
* ld-i386/pr17689now.rd: New file.
* ld-x86-64/pr17689now.rd: Likewise
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In a SHF_COMPRESSED compressed section, the raw compressed data should
begin immediately after the compression header. This patch removes the
extra zlib header from the SHF_COMPRESSED section.
bfd/
* bfd.c (bfd_update_compression_header): Also write the zlib
header if the SHF_COMPRESSED bit cleared..
(bfd_check_compression_header): Return the uncompressed size.
* compress.c (decompress_contents): Don't skip the zlib header.
(bfd_compress_section_contents): Properly handle ELFCOMPRESS_ZLIB,
which doesn't have the zlib header.
(bfd_init_section_decompress_status): Likewise.
(bfd_get_full_section_contents): Updated.
(bfd_is_section_compressed): Likewise.
(bfd_is_section_compressed_with_header): Return the uncompressed
size.
* elf.c (_bfd_elf_make_section_from_shdr): Updated.
* bfd-in2.h: Regenerated.
binutils/
* readelf.c (uncompress_section_contents): Add a parameter for
uncompressed size. Don't check the zlib header.
(load_specific_debug_section): Updated.
binutils/testsuite/
* binutils-all/compress.exp: Replace "$OBJDUMP -s -j .debug_info"
with "$OBJDUMP -W".
* binutils-all/libdw2-compressedgabi.out: Updated.
gas/
2015-05-14 H.J. Lu <hongjiu.lu@intel.com>
* write.c (compress_debug): Don't write the zlib header, which
is handled by bfd_update_compression_header.
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bfd/
* elfnn-aarch64.c (elfNN_aarch64_relocate_section): Remove overflow
check restriction.
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elf_xtensa_gc_sweep_hook doesn't correctly unreference symbols that were
made local, that results in link failure with the following message:
BFD (GNU Binutils) 2.24 internal error, aborting at elf32-xtensa.c line
3372 in elf_xtensa_finish_dynamic_sections
elf_xtensa_gc_sweep_hook determines symbol reference type (PLT or GOT) by
relocation type. Relocation types are not changed when symbol becomes
local, but its PLT references are added to GOT references and
plt.refcount is set to 0. Such symbol cannot be unreferences in the
elf_xtensa_gc_sweep_hook and its extra references make calculated GOT
relocations section size not match number of GOT relocations.
Fix it by treating PLT reference as GOT reference when plt.refcount is
not positive.
2015-05-14 Max Filippov <jcmvbkbc@gmail.com>
bfd/
* elf32-xtensa.c (elf_xtensa_gc_sweep_hook): Treat PLT reference
as GOT reference when plt.refcount is not positive.
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Commit dd7e64d45b317128f5fe813a8da0b13b4ad046ae may optimize out
i386/x86-64 JUMP_SLOT relocation. If there is no JUMP_SLOT relocation
left, we don't need to the first .plt entry. This patch allocates
space for the first .plt entry only if we also reserve space for a PLT
slot for JUMP_SLOT relocation.
bfd/
* elf32-i386.c (elf_i386_allocate_dynrelocs): Allocate space
for the first .plt entry only if needed.
* elf64-x86-64.c (elf_x86_64_allocate_dynrelocs): Likewise.
ld/testsuite/
* ld-i386/i386.exp: Run pltgot-1 for Linux targets.
* ld-x86-64/x86-64.exp: Likewise.
* ld-i386/pltgot-1.d: New file.
* ld-i386/pltgot-1.s: Likewise.
* ld-x86-64/pltgot-1.d: Likewise.
* ld-x86-64/pltgot-1.s: Likewise.
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bfd/
* Makefile.am (ALL_MACHINES): Add cpu-iamcu.lo.
(ALL_MACHINES_CFILES): Likewise.
* archures.c (bfd_mach_iamcu): New.
(bfd_mach_i386_iamcu): Likewise.
(bfd_mach_i386_iamcu_intel_syntax): Likewise.
(bfd_iamcu_arch): Likewise.
(bfd_archures_list): Add &bfd_iamcu_arch.
* config.bfd (targ_selvecs): Add iamcu_elf32_vec to
i386_elf32_vec.
(targ_archs): Add bfd_iamcu_arch if needed.
* configure.ac: Support iamcu_elf32_vec.
* cpu-iamcu.c: New file.
* elf32-i386.c (elf32_iamcu_elf_object_p): New function.
Add support for iamcu_elf32_vec and elf32_iamcu_bed.
* targets.c (iamcu_elf32_vec): New.
(_bfd_target_vector): Add iamcu_elf32_vec.
* Makefile.in: Regenerated.
* bfd-in2.h: Likewise.
* configure: Likewise.
binutils/testsuite/
* binutils-all/objdump.exp (cpus_expected): Append iamcu.
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bfd/
* elfcode.h (elf_object_p): Replace EM_486 with EM_IAMCU.
binutils/
* dwarf.c (init_dwarf_regnames): Replace EM_486 with EM_IAMCU.
* readelf.c (guess_is_rela): Likewise.
(dump_relocations): Likewise.
(get_machine_name): Likewise.
(get_elf_section_flags): Likewise.
(process_section_headers): Likewise.
(is_32bit_abs_reloc): Likewise.
(is_32bit_pcrel_reloc): Likewise.
include/elf/
* common.h (EM_486): Renamed to ...
(EM_IAMCU): This.
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