We have not only removed all unsupported and obsolete code, but also supported lost of new features,
including better link-time relaxations and TLS implementations. Besides, the files generated by the
newly assembler and linker usually get higher performance and more optimized code size.
ld * emultempl/nds32elf.em (hyper_relax): New variable.
(nds32_elf_create_output_section_statements):
the parameters of bfd_elf32_nds32_set_target_option
(PARSE_AND_LIST_PROLOGUE, PARSE_AND_LIST_OPTIONS,
PARSE_AND_LIST_ARGS_CASES): Add new option --mhyper-relax.
* emultempl/nds32elf.em (nds32_elf_after_open): Updated.
* emultempl/nds32elf.em (tls_desc_trampoline): New variable.
* (nds32_elf_create_output_section_statements): Updated.
* (nds32_elf_after_parse): Disable relaxations when PIC is enable.
* (PARSE_AND_LIST_PROLOGUE, PARSE_AND_LIST_OPTIONS,
PARSE_AND_LIST_ARGS_CASES): Add new option --m[no-]tlsdesc-trampoline.
include * elf/nds32.h: Remove the unused target features.
* dis-asm.h (disassemble_init_nds32): Declared.
* elf/nds32.h (E_NDS32_NULL): Removed.
(E_NDS32_HAS_DSP_INST, E_NDS32_HAS_ZOL): New.
* opcode/nds32.h: Ident.
(N32_SUB6, INSN_LW): New macros.
(enum n32_opcodes): Updated.
* elf/nds32.h: Doc fixes.
* elf/nds32.h: Add R_NDS32_LSI.
* elf/nds32.h: Add new relocations for TLS.
gas * config/tc-nds32.c: Remove the unused target features.
(nds32_relax_relocs, md_pseudo_table, nds32_elf_record_fixup_exp,
nds32_set_elf_flags_by_insn, nds32_insert_relax_entry,
nds32_apply_fix): Likewise.
(nds32_no_ex9_begin): Removed.
* config/tc-nds32.c (add_mapping_symbol_for_align,
make_mapping_symbol, add_mapping_symbol): New functions.
* config/tc-nds32.h (enum mstate): New.
(nds32_segment_info_type): Likewise.
* configure.ac (--enable-dsp-ext, --enable-zol-ext): New options.
* config.in: Regenerated.
* configure: Regenerated.
* config/tc-nds32.c (nds32_dx_regs):
Set the value according to the configuration.
(nds32_perf_ext, nds32_perf_ext2, nds32_string_ext, nds32_audio_ext):
Likewise.
(nds32_dsp_ext): New variable. Set the value according to the
configuration.
(nds32_zol_ext): Likewise.
(asm_desc, nds32_pseudo_opcode_table): Make them static.
(nds32_set_elf_flags_by_insn): Updated.
(nds32_check_insn_available): Updated.
(nds32_str_tolower): New function.
* config/tc-nds32.c (relax_table): Updated.
(md_begin): Updated.
(md_assemble): Use XNEW macro to allocate space for `insn.info',
and then remember to free it.
(md_section_align): Cast (-1) to ValueT.
(nds32_get_align): Cast (~0U) to addressT.
(nds32_relax_branch_instructions): Updated.
(md_convert_frag): Add new local variable `final_r_type'.
(invalid_prev_frag): Add new bfd_boolean parameter `relax'.
All callers changed.
* config/tc-nds32.c (struct nds32_relocs_pattern): Add `insn' field.
(struct nds32_hint_map): Add `option_list' field.
(struct suffix_name, suffix_table): Remove the unused `pic' field.
(do_pseudo_b, do_pseudo_bal): Remove the suffix checking.
(do_pseudo_la_internal, do_pseudo_pushpopm): Indent.
(relax_hint_bias, relax_hint_id_current): New static variables.
(reset_bias, relax_hint_begin): New variables.
(nds_itoa): New function.
(CLEAN_REG, GET_OPCODE): New macros.
(struct relax_hint_id): New.
(nds32_relax_hint): For .relax_hint directive, we can use `begin'
and `end' to mark the relax pattern without giving exactly id number.
(nds32_elf_append_relax_relocs): Handle the case that the .relax_hint
directives are attached to pseudo instruction.
(nds32_elf_save_pseudo_pattern): Change the second parameter from
instruction's opcode to byte code.
(nds32_elf_build_relax_relation): Add new bfd_boolean parameter
`pseudo_hint'.
(nds32_lookup_pseudo_opcode): Fix the overflow issue.
(enum nds32_insn_type): Add N32_RELAX_ALU1 and N32_RELAX_16BIT.
(nds32_elf_record_fixup_exp, relax_ls_table, hint_map,
nds32_find_reloc_table, nds32_match_hint_insn, nds32_parse_name):
Updated.
* config/tc-nds32.h (MAX_RELAX_NUM): Extend it to 6.
(enum nds32_relax_hint_type): Merge NDS32_RELAX_HINT_LA and
NDS32_RELAX_HINT_LS into NDS32_RELAX_HINT_LALS. Add
NDS32_RELAX_HINT_LA_PLT, NDS32_RELAX_HINT_LA_GOT and
NDS32_RELAX_HINT_LA_GOTOFF.
* config/tc-nds32.h (relax_ls_table): Add floating load/store
to gp relax pattern.
(hint_map, nds32_find_reloc_table): Likewise.
* configure.ac: Define NDS32_LINUX_TOOLCHAIN.
* configure: Regenerated.
* config.in: Regenerated.
* config/tc-nds32.h (enum nds32_ramp): Updated.
(enum nds32_relax_hint_type): Likewise.
* config/tc-nds32.c: Include "errno.h" and "limits.h".
(relax_ls_table): Add TLS relax patterns.
(nds32_elf_append_relax_relocs): Attach BFD_RELOC_NDS32_GROUP on
each instructions of TLS patterns.
(nds32_elf_record_fixup_exp): Updated.
(nds32_apply_fix): Likewise.
(suffix_table): Add TLSDESC suffix.
binutils* testsuite/binutils-all/objcopy.exp: Set the unsupported reloc number
from 215 to 255 for NDS32.
bfd * elf32-nds32.c (nds32_elf_relax_loadstore):
Remove the unused target features.
(bfd_elf32_nds32_set_target_option): Remove the unused parameters.
(nds32_elf_relax_piclo12, nds32_elf_relax_letlslo12,
nds32_elf_relax_letlsadd, nds32_elf_relax_letlsls,
nds32_elf_relax_pltgot_suff, nds32_elf_relax_got_suff
nds32_elf_relax_gotoff_suff, calculate_plt_memory_address,
calculate_plt_offset, calculate_got_memory_address,
nds32_elf_check_dup_relocs): Removed.
All callers changed.
* elf32-nds32.h: Remove the unused macros and defines.
(elf_nds32_link_hash_table): Remove the unused variable.
(bfd_elf32_nds32_set_target_option): Update prototype.
(nds32_elf_ex9_init): Removed.
* elf32-nds32.c (nds32_convert_32_to_16): Updated.
* elf32-nds32.c (HOWTO2, HOWTO3): Define new HOWTO macros
to initialize array nds32_elf_howto_table in any order
without lots of EMPTY_HOWTO.
(nds32_reloc_map): Updated.
* reloc.c: Add BFD_RELOC_NDS32_LSI.
* bfd-in2.h: Regenerated.
* bfd/libbfd.h: Regenerated.
* elf32-nds32.c (nds32_elf_relax_howto_table): Add R_NDS32_LSI.
(nds32_reloc_map): Likewise.
(nds32_elf_relax_flsi): New function.
(nds32_elf_relax_section): Support floating load/store relaxation.
* elf32-nds32.c (NDS32_GUARD_SEC_P, elf32_nds32_local_gp_offset):
New macro.
(struct elf_nds32_link_hash_entry): New `offset_to_gp' field.
(struct elf_nds32_obj_tdata): New `offset_to_gp' and `hdr_size' fields.
(elf32_nds32_allocate_local_sym_info, nds32_elf_relax_guard,
nds32_elf_is_target_special_symbol, nds32_elf_maybe_function_sym):
New functions.
(nds32_info_to_howto_rel): Add BFD_ASSERT.
(bfd_elf32_bfd_reloc_type_table_lookup, nds32_elf_link_hash_newfunc,
nds32_elf_link_hash_table_create, nds32_elf_relocate_section,
nds32_elf_relax_loadstore, nds32_elf_relax_lo12, nds32_relax_adjust_label,
bfd_elf32_nds32_set_target_option, nds32_fag_mark_relax): Updated.
(nds32_elf_final_sda_base): Improve it to find the better gp value.
(insert_nds32_elf_blank): Must consider `len' when inserting blanks.
* elf32-nds32.h (bfd_elf32_nds32_set_target_option): Update prototype.
(struct elf_nds32_link_hash_table): Add new variable `hyper_relax'.
* elf32-nds32.c (elf32_nds32_allocate_dynrelocs): New function.
(create_got_section): Likewise.
(allocate_dynrelocs, nds32_elf_size_dynamic_sections,
nds32_elf_relocate_section, nds32_elf_finish_dynamic_symbol): Updated.
(nds32_elf_check_relocs): Fix the issue that the shared library may
has TEXTREL entry in the dynamic section.
(nds32_elf_create_dynamic_sections): Enable to call readonly_dynrelocs
since the TEXTREL issue is fixed in the nds32_elf_check_relocs.
(nds32_elf_finish_dynamic_sections): Update and add DT_RELASZ
dynamic entry.
(calculate_offset): Remove the unused parameter `pic_ext_target' and
related codes.
All callers changed.
(elf_backend_dtrel_excludes_plt): Disable it temporarily since it
will cause some errors for our test cases.
* elf32-nds32.c (nds32_elf_merge_private_bfd_data): Allow to link the
generic object.
* reloc.c: Add TLS relocations.
* libbfd.h: Regenerated.
* bfd-in2.h: Regenerated.
* elf32-nds32.h (struct section_id_list_t): New.
(elf32_nds32_lookup_section_id, elf32_nds32_check_relax_group,
elf32_nds32_unify_relax_group, nds32_elf_unify_tls_model):
New prototypes.
(elf32_nds32_compute_jump_table_size, elf32_nds32_local_tlsdesc_gotent):
New macro.
(nds32_insertion_sort, bfd_elf32_nds32_set_target_option,
elf_nds32_link_hash_table): Updated.
* elf32-nds32.c (enum elf_nds32_tls_type): New.
(struct elf32_nds32_relax_group_t, struct relax_group_list_t): New.
(elf32_nds32_add_dynreloc, patch_tls_desc_to_ie, get_tls_type,
fls, ones32, list_insert, list_insert_sibling, dump_chain,
elf32_nds32_check_relax_group, elf32_nds32_lookup_section_id,
elf32_nds32_unify_relax_group, nds32_elf_unify_tls_model): New functions.
(elf_nds32_obj_tdata): Add new fields.
(elf32_nds32_relax_group_ptr, nds32_elf_local_tlsdesc_gotent): New macros.
(nds32_elf_howto_table): Add TLS relocations.
(nds32_reloc_map): Likewise.
(nds32_elf_copy_indirect_symbol, nds32_elf_size_dynamic_sections,
nds32_elf_finish_dynamic_symbol, elf32_nds32_allocate_local_sym_info,
nds32_elf_relocate_section, bfd_elf32_nds32_set_target_option,
nds32_elf_check_relocs, allocate_dynrelocs): Updated.
(nds32_elf_relax_section): Call nds32_elf_unify_tls_model.
(dtpoff_base): Rename it to `gottpof' and then update it.
opcodes * nds32-asm.c (operand_fields): Remove the unused fields.
(nds32_opcodes): Remove the unused instructions.
* nds32-dis.c (nds32_ex9_info): Removed.
(nds32_parse_opcode): Updated.
(print_insn_nds32): Likewise.
* nds32-asm.c (config.h, stdlib.h, string.h): New includes.
(LEX_SET_FIELD, LEX_GET_FIELD): Update defines.
(nds32_asm_init, build_operand_hash_table, build_keyword_hash_table,
build_opcode_hash_table): New functions.
(nds32_keyword_table, nds32_keyword_count_table, nds32_field_table,
nds32_opcode_table): New.
(hw_ktabs): Declare it to a pointer rather than an array.
(build_hash_table): Removed.
* nds32-asm.h (enum): Add SYN_INPUT, SYN_OUTPUT, SYN_LOPT,
SYN_ROPT and upadte HW_GPR and HW_INT.
* nds32-dis.c (keywords): Remove const.
(match_field): New function.
(nds32_parse_opcode): Updated.
* disassemble.c (disassemble_init_for_target):
Add disassemble_init_nds32.
* nds32-dis.c (eum map_type): New.
(nds32_private_data): Likewise.
(get_mapping_symbol_type, is_mapping_symbol, nds32_symbol_is_valid,
nds32_add_opcode_hash_table, disassemble_init_nds32): New functions.
(print_insn_nds32): Updated.
* nds32-asm.c (parse_aext_reg): Add new parameter.
(parse_re, parse_re2, parse_aext_reg): Only reduced registers
are allowed to use.
All callers changed.
* nds32-asm.c (keyword_usr, keyword_sr): Updated.
(operand_fields): Add new fields.
(nds32_opcodes): Add new instructions.
(keyword_aridxi_mx): New keyword.
* nds32-asm.h (enum): Add NASM_ATTR_DSP_ISAEXT, HW_AEXT_ARIDXI_MX
and NASM_ATTR_ZOL.
(ALU2_1, ALU2_2, ALU2_3): New macros.
* nds32-dis.c (nds32_filter_unknown_insn): Updated.
binutils* testsuite/binutils-all/compress.exp: Rename second "objcopy
zlib-gnu compress debug sections 3" test to "objcopy zlib-gabi
compress debug sections 3" and use gabi object files instead
of gnu object files.
* testsuite/binutils-all/objcopy.exp: Add suffix to the names
of the "ELF group" tests.
* testsuite/binutils-all/readelf.exp (proc readelf_find_size):
Add an iteration parameter and include it in the name of the
test. Update callers to include an iteration count.
gas * testuite/gas/elf/group0a.d: Add extra details to the test
name.
* testuite/gas/elf/group0b.d: Likewise.
* testuite/gas/elf/group1a.d: Likewise.
* testuite/gas/elf/group1b.d: Likewise.
* testuite/gas/elf/group0b.d: Likewise.
* testuite/gas/elf/section9.d: Likewise.
* testuite/gas/i386/ilp32/lns/lns-common-1.d: Likewise.
* testuite/gas/i386/ilp32/lns/lns-duplicate-1.d: Likewise.
ld * testuite/ld/ld-elf/audit.exp: Differentiate the names of the
two "Run with shared with --audit" tests.
* testuite/ld/ld-elf/compress.exp: Differentiate the zlib
compressed debug output test names.
* testuite/ld/ld-i386/tlspie1.d: Add extra details to the test
name.
* testuite/ld/ld-i386/tlspie2.d: Likewise.
* testuite/ld/ld-size/size.exp: Add missing escapes to the end
of lines in the size-3e test.
* testuite/ld/ld-unique/unique.exp: Differentiate the names of
the two "Checking unique PIC object" tests.
* testuite/ld/ld-x86-64/tlspie1.d: Add extra details to the test
name.
When dereferencing a GOT slot with lgrl or lg we rewrite this using
larl to get rid of the extra memory access. However, we cannot do
this for:
- symbols marked for absolute addressing
- symbols at odd addresses (larl can handle only even addresses)
Fixed with the attached patch.
bfd/ChangeLog:
2018-09-17 Andreas Krebbel <krebbel@linux.ibm.com>
* elf64-s390.c (elf_s390_relocate_section): Prevent rewriting of
GOT accesses with larl for ABS or misaligned symbols.
ld/ChangeLog:
2018-09-17 Andreas Krebbel <krebbel@linux.ibm.com>
* testsuite/ld-s390/gotreloc-1.s: Add tests for ABS and misaligned
symbol. Move variables into data section. Make bar 8 bytes wide.
* testsuite/ld-s390/gotreloc-1.ver: Make misaligned_sym resolve locally.
* testsuite/ld-s390/gotreloc_31-1.dd: Adjust patterns.
* testsuite/ld-s390/gotreloc_64-norelro-1.dd: Likewise.
* testsuite/ld-s390/gotreloc_64-relro-1.dd: Likewise.
ld/testsuite/ld-s12z/
* reloc-ext18-1.d: New file.
* reloc-ext18-1.d: New file.
* reloc-ext18-2.d: New file.
* reloc-ext18.d: New file.
* reloc-ext18.s: New file.
* reloc-ext24.d: New file.
* reloc-ext24.s: New file.
* reloc-ext32.d: New file.
* reloc-ext32.s: New file.
* reloc-opr.d: New file.
* reloc-opr.d: New file.
* reloc-opr.s: New file.
* reloc-pc-rel-7-15.d: New file.
* reloc-pc-rel-7-15.s: New file.
This merges the three versions of run_dump_test. Improved warning
handling versus the old gas version shows up a number of tests that
need their disassembly updating:
arm-linuxeabi +FAIL: ARM v1 instructions
arm-linuxeabi +FAIL: Accepted v8-a with ARMv8.1 AdvSIMD.
arm-linuxeabi +FAIL: bl local instructions for v4t.
arm-linuxeabi +FAIL: UDF
and some that now fail due to detecting assembly warnings:
h8300-elf +FAIL: binutils-all/strip-13
h8300-elf +FAIL: binutils-all/strip-14
h8300-elf +FAIL: binutils-all/strip-15
I've generally kept the union of all run_dump_test features, except
that the ld target aliases "cfi" and "shared" have disappeared, as has
the binutils substitution of $srcdir as $scrdir/$subdir.
binutils/
* testsuite/binutils-all/add-symbol.d: Add "section_subst: no".
* testsuite/binutils-all/elfedit.exp: Don't set tempfile or copyfile.
* testsuite/binutils-all/symbols-1.d,
* testsuite/binutils-all/symbols-2.d,
* testsuite/binutils-all/symbols-3.d,
* testsuite/binutils-all/symbols-4.d: Quote '*' and '!'.
* testsuite/binutils-all/add-empty-section.d,
* testsuite/binutils-all/add-section.d,
* testsuite/binutils-all/elfedit.exp,
* testsuite/binutils-all/note-1.d,
* testsuite/binutils-all/pr23633.d: Add $subdir after $srcdir.
* testsuite/config/default.exp (AS, ASFLAGS): Define.
* testsuite/config/hppa.sed: Handle all common symbols.
* testsuite/lib/binutils-common.exp (run_dump_test): New proc,
merged from three other versions.
(slurp_options, file_contents, set_file_contents): Likewise.
(big_or_little_endian, get_standard_section_names): Likewise.
* testsuite/lib/utils-lib.exp (run_dump_test): Delete.
(slurp_options, proc file_contents): Delete.
(get_standard_section_names): Delete.
gas/
* testsuite/config/default.exp: Make tmpdir.
* testsuite/lib/gas-defs.exp (run_dump_test): Delete.
(get_standard_section_names, slurp_options): Delete.
ld/
* testsuite/ld-d10v/reloc-007.d,
* testsuite/ld-d10v/reloc-008.d,
* testsuite/ld-d10v/reloc-015.d,
* testsuite/ld-d10v/reloc-016.d: Remove "error:".
* testsuite/ld-elf/eh-frame-hdr.d,
* testsuite/ld-elf/eh5.d,
* testsuite/ld-gc/personality.d: Replace "cfi" and "shared" in
target list with appropriate proc.
* testsuite/ld-elf/frame.exp: Use check_shared_lib_support rather
than "istarget shared".
* testsuite/lib/ld-lib.exp (proc big_or_little_endian): Delete.
(run_dump_test, slurp_options, file_contents): Delete.
(set_file_contents, istarget): Delete.
We have three copies of run_dump_test in the testsuite. This is a first
step towards consolidating them.
A few tests use objcopy to convert to verilog or srec output, then
check that output is as expected. Those tests can just as easily use
objdump, keeping the set of dump programs (addr2line, nm, objdump,
readelf, size) separate from utilities under test. That in turn makes
auto-detecting the dump program possible in more places.
binutils/
* testsuite/binutils-all/group-7a.d,
* testsuite/binutils-all/group-7b.d,
* testsuite/binutils-all/group-7c.d,
* testsuite/binutils-all/symbols-1.d,
* testsuite/binutils-all/symbols-2.d,
* testsuite/binutils-all/symbols-3.d,
* testsuite/binutils-all/symbols-4.d: Remove DUMPPROG.
gas/
* testsuite/gas/mri/char.d: Don't objcopy to srec, objdump instead.
* testsuite/gas/mri/float.d: Likewise.
* testsuite/lib/gas-defs.exp (run_dump_test): Remove support
for objcopy as a dump tool.
ld/
* testsuite/ld-elf/interleave-0.d,
* testsuite/ld-elf/interleave-4.d: Don't objcopy to srec,
objdump instead.
* testsuite/ld-gc/all-debug-sections.d,
* testsuite/ld-scripts/provide-4.d,
* testsuite/ld-scripts/provide-5.d,
* testsuite/ld-scripts/provide-6.d,
* testsuite/ld-scripts/provide-7.d,
* testsuite/ld-scripts/provide-8.d,
* testsuite/ld-scripts/segment-start.d: Remove PROG, specify
nm instead.
* testsuite/lib/ld-lib.exp (run_dump_test): Remove support
for objcopy as a dump tool.
Define a new procedure, `run_mips_undefweak_test', and use it to iterate
over several scenarios involving undefined weak symbols resolving to
zero, verifying expected regular MIPS, MIPS16 and microMIPS code, GOT
and dynamic symbol table generation, as well as the setting of the
EI_ABIVERSION field in the ELF file header. In particular ensure that
symbol versioning works and that `__gnu_absolute_zero' gets assigned a
version (any will do) even if it has not been listed for exportation in
a linker version script.
ld/
PR ld/21375
* testsuite/ld-mips-elf/pr21375-abi.hd: New test.
* testsuite/ld-mips-elf/pr21375-noabi.hd: New test.
* testsuite/ld-mips-elf/pr21375.dd: New test.
* testsuite/ld-mips-elf/pr21375h.dd: New test.
* testsuite/ld-mips-elf/pr21375p.dd: New test.
* testsuite/ld-mips-elf/pr21375ph.dd: New test.
* testsuite/ld-mips-elf/pr21375s.dd: New test.
* testsuite/ld-mips-elf/pr21375s-n32.dd: New test.
* testsuite/ld-mips-elf/pr21375s-n64.dd: New test.
* testsuite/ld-mips-elf/pr21375sh.dd: New test.
* testsuite/ld-mips-elf/pr21375sh-n32.dd: New test.
* testsuite/ld-mips-elf/pr21375sh-n64.dd: New test.
* testsuite/ld-mips-elf/pr21375shg.dd: New test.
* testsuite/ld-mips-elf/pr21375sx.dd: New test.
* testsuite/ld-mips-elf/pr21375sxh.dd: New test.
* testsuite/ld-mips-elf/pr21375sm16.dd: New test.
* testsuite/ld-mips-elf/pr21375sm16h.dd: New test.
* testsuite/ld-mips-elf/pr21375su.dd: New test.
* testsuite/ld-mips-elf/pr21375su-n32.dd: New test.
* testsuite/ld-mips-elf/pr21375su-n64.dd: New test.
* testsuite/ld-mips-elf/pr21375suh.dd: New test.
* testsuite/ld-mips-elf/pr21375suh-n32.dd: New test.
* testsuite/ld-mips-elf/pr21375suh-n64.dd: New test.
* testsuite/ld-mips-elf/pr21375sux.dd: New test.
* testsuite/ld-mips-elf/pr21375suxh.dd: New test.
* testsuite/ld-mips-elf/pr21375.gd: New test.
* testsuite/ld-mips-elf/pr21375h.gd: New test.
* testsuite/ld-mips-elf/pr21375p.gd: New test.
* testsuite/ld-mips-elf/pr21375ph.gd: New test.
* testsuite/ld-mips-elf/pr21375s.gd: New test.
* testsuite/ld-mips-elf/pr21375s-n32.gd: New test.
* testsuite/ld-mips-elf/pr21375s-n64.gd: New test.
* testsuite/ld-mips-elf/pr21375sh.gd: New test.
* testsuite/ld-mips-elf/pr21375sh-n32.gd: New test.
* testsuite/ld-mips-elf/pr21375sh-n64.gd: New test.
* testsuite/ld-mips-elf/pr21375shg.gd: New test.
* testsuite/ld-mips-elf/pr21375shl.gd: New test.
* testsuite/ld-mips-elf/pr21375shv.gd: New test.
* testsuite/ld-mips-elf/pr21375sx.gd: New test.
* testsuite/ld-mips-elf/pr21375sxh.gd: New test.
* testsuite/ld-mips-elf/pr21375.sd: New test.
* testsuite/ld-mips-elf/pr21375-irix.sd: New test.
* testsuite/ld-mips-elf/pr21375h.sd: New test.
* testsuite/ld-mips-elf/pr21375h-irix.sd: New test.
* testsuite/ld-mips-elf/pr21375p.sd: New test.
* testsuite/ld-mips-elf/pr21375p-irix.sd: New test.
* testsuite/ld-mips-elf/pr21375ph.sd: New test.
* testsuite/ld-mips-elf/pr21375ph-irix.sd: New test.
* testsuite/ld-mips-elf/pr21375s.sd: New test.
* testsuite/ld-mips-elf/pr21375s-irix.sd: New test.
* testsuite/ld-mips-elf/pr21375s-n32.sd: New test.
* testsuite/ld-mips-elf/pr21375s-n32-irix.sd: New test.
* testsuite/ld-mips-elf/pr21375s-n64.sd: New test.
* testsuite/ld-mips-elf/pr21375s-n64-irix.sd: New test.
* testsuite/ld-mips-elf/pr21375sh.sd: New test.
* testsuite/ld-mips-elf/pr21375sh-irix.sd: New test.
* testsuite/ld-mips-elf/pr21375sh-n32.sd: New test.
* testsuite/ld-mips-elf/pr21375sh-n32-irix.sd: New test.
* testsuite/ld-mips-elf/pr21375sh-n64.sd: New test.
* testsuite/ld-mips-elf/pr21375sh-n64-irix.sd: New test.
* testsuite/ld-mips-elf/pr21375shg.sd: New test.
* testsuite/ld-mips-elf/pr21375shg-irix.sd: New test.
* testsuite/ld-mips-elf/pr21375shl.sd: New test.
* testsuite/ld-mips-elf/pr21375shl-irix.sd: New test.
* testsuite/ld-mips-elf/pr21375shv.sd: New test.
* testsuite/ld-mips-elf/pr21375shv-irix.sd: New test.
* testsuite/ld-mips-elf/pr21375sx.sd: New test.
* testsuite/ld-mips-elf/pr21375sx-irix.sd: New test.
* testsuite/ld-mips-elf/pr21375sxh.sd: New test.
* testsuite/ld-mips-elf/pr21375sxh-irix.sd: New test.
* testsuite/ld-mips-elf/pr21375.ld: New test linker script.
* testsuite/ld-mips-elf/pr21375-xgot.ld: New test linker script.
* testsuite/ld-mips-elf/pr21375.ver: New test version script.
* testsuite/ld-mips-elf/pr21375v.ver: New test version script.
* testsuite/ld-mips-elf/pr21375.s: New test source.
* testsuite/ld-mips-elf/pr21375-mips16.s: New test source.
* testsuite/ld-mips-elf/pr21375-n32.s: New test source.
* testsuite/ld-mips-elf/pr21375-n64.s: New test source.
* testsuite/ld-mips-elf/pr21375-xgot.s: New test source.
* testsuite/ld-mips-elf/mips-elf.exp (run_mips_undefweak_test):
New procedure; run the new tests.
We have an issue in the MIPS backend, with the handling of undefined
hidden and internal weak symbols. References to such symbols are
supposed to resolve to 0 according to the ELF gABI[1]:
"Unresolved weak symbols have a zero value."
and the 64-bit MIPS psABI[2]:
"If a symbol with one of these [hidden or internal] attributes has no
definition within the executable/DSO being linked, then it must be
resolved to allocated space if common, resolved to zero if weak, or an
error reported otherwise."
however if a GOT relocation is used, then a local GOT entry is created
and used to satisfy the reference. Such an entry is then (in DSO and
PIE binaries) subject to the usual load-time relocation, which means a
non-zero value will be returned if the base address is non-zero. This
will defeat the usual run-time sequence like:
void a (void) __attribute__ ((visibility ("hidden"), weak));
void
x (void)
{
if (a)
a ();
}
This can be reproduced with this simple code:
$ cat libtest.c
extern int a __attribute__ ((visibility ("hidden"), weak));
int *
x (void)
{
return &a;
}
$ cat test.c
int *x (void);
int
main (void)
{
printf ("a: %p\n", x ());
return 0;
}
$ gcc -shared -fPIC -o libtest.so libtest.c
$ gcc -o test test.c -Wl,-rpath,$(pwd) libtest.so
$ ./test
a: 0x77184000
$
The usual approach targets take is making all the steps required to
assign a GOT entry for the symbol referred, and then leave its contents
at zero with no dynamic relocation attached, therefore ensuring that the
value does not change at load time. However this is not going to work
with the implicitly relocated GOT the MIPS psABI specifies[3]:
"The dynamic linker relocates the global offset table by first adding
the difference between the base where the shared object is loaded and
the value of the dynamic tag DT_MIPS_BASE_ADDRESS to all local global
offset table entries."
and we cannot therefore use the local GOT part.
And we cannot offhand use the global part either, as the symbol would
then have to be exported and possibly wrongly preempt symbols in other
modules involved in the dynamic load, because as per the ELF gABI[1] we
are not allowed to enter a hidden or internal symbol into the dynamic
symbol table (and then use its associated GOT entry):
"A hidden symbol contained in a relocatable object must be either
removed or converted to STB_LOCAL binding by the link-editor when the
relocatable object is included in an executable file or shared object."
and:
"An internal symbol contained in a relocatable object must be either
removed or converted to STB_LOCAL binding by the link-editor when the
relocatable object is included in an executable file or shared object."
So we have to choose something else.
Our choice is further limited by the need for the reference associated
with the GOT relocation to stay within the signed 16-bit limit from the
GOT pointer base register, while being compliant with the ELF gABI and
the MIPS psABI. However as Alan Modra has observed[4] one possibility
is to edit (relax) the code such that the GOT reference is removed
altogether.
Based on these observations then modify MIPS BFD linker backend code to:
1. Interpret code associated with GOT relocations and relax the usual LW
or LD instructions into a corresponding immediate load operation that
places the value of 0 in the intended register, while leaving the GOT
entry allocated and initialized as usually.
2. Leave any other instructions associated with GOT relocations in place
and instead redirect the reference to a global GOT entry associated
with a special `__gnu_absolute_zero' symbol created for this purpose,
whose value is 0, SHN_ABS section marks it absolute, binding is
global and export class protected, ensuring that the locally provided
value is always used at load time, and that the value is not
relocated by the dynamic loader.
3. Adjust any high-part GOT relocation used, typically associated with
a LUI instruction, accordingly, so that run-time consistency is
maintained, either by resolving to the original entry if the
instruction associated with the corresponding low-part GOT relocation
has been relaxed to an immediate load (in which case the value loaded
with LUI will be overwritten), or by also redirecting the reference
to `__gnu_absolute_zero' to complete the GOT access sequence if that
symbol has been used.
4. Add a target `elf_backend_hide_symbol' hook, for the three MIPS ABIs,
which prevents the `__gnu_absolute_zero' symbol from being forced
local, to ensure that the redirection works and the symbol remains
global/protected with existing linker scripts unchanged.
5. Observing the issue with handling SHN_ABS symbols in the GNU dynamic
loader, covered by glibc PR 19818, set the EI_ABIVERSION field in the
ELF file header produced to 4 (ABI_ABSOLUTE) if `__gnu_absolute_zero'
symbol has been produced and the target configured indicates the GNU
operating system, so that broken versions of the GNU dynamic loader
gracefully reject the file in loading rather than going astray. Keep
EI_ABIVERSION at the original value for other operating systems or if
no `__gnu_absolute_zero' symbol has been made.
The name of the special `__gnu_absolute_zero' has no meaning other than
how a human reader can interpret it, as it is ignored in dynamic loading
in the handling of the scenarios concerned. This is because the symbol
resolves locally, and it's only the symbol's attributes that matter so
that the associated GOT entry remains unchanged at load time.
Therefore the name is somewhat arbitrary, observing however the need to
use the name space reserved for the system so that it does not conflict
with a possible user symbol, and hence the leading underscore, and also
the `gnu' infix to denote a GNU feature. Other implementations wishing
to address the problem in a similar way may choose a different name and
have the solution still work, possibly with a mixture of modules used in
a dynamic having symbols of different names provided, which will however
not interact with each other due to the protected export class.
The symbol can be referred explicitly, however the name is an internal
implementation detail rather than a part of the ABI, and therefore no
specific semantics is guaranteed.
One limitation of this change is that if `__gnu_absolute_zero' has been
already defined, then we do not wipe the old definition and all kinds of
odd behavior can result. This is however like with other symbols we
internally define, such as `_GLOBAL_OFFSET_TABLE_' or `__rld_map', and
therefore left as a possible future enhancement.
As an optimization the relaxation of LW and LD instructions to a load of
immediate zero is always made, even SVR4 PIC code for code that will end
up in a regular (non-PIE) executable, because there is a cache advantage
with the avoidance of a load from the GOT, even if it is otherwise
guaranteed to remain zero. It does not reliably happen though, due to a
symbol exportation issue affecting executables, covered by PR ld/21805.
One existing test case needs to be updated, as it triggers relaxation
introduced with this change and consequently linker output does not
match expectations anymore. As we want to keep the original issue
covered with the test case modify it then to use the LWL instruction in
place of LW, and adjust the output expected accordingly.
References:
[1] "System V Application Binary Interface - DRAFT - 19 October 2010",
The SCO Group, Section "Symbol Table",
<http://www.sco.com/developers/gabi/2012-12-31/ch4.symtab.html>
[2] "64-bit ELF Object File Specification, Draft Version 2.5", MIPS
Technologies / Silicon Graphics Computer Systems, Order Number
007-4658-001, Section 2.5 "Symbol Table", p. 22,
<http://techpubs.sgi.com/library/manuals/4000/007-4658-001/pdf/007-4658-001.pdf>
[3] "SYSTEM V APPLICATION BINARY INTERFACE, MIPS RISC Processor
Supplement, 3rd Edition", Section "Global Offset Table", p. 5-10,
<http://www.linux-mips.org/pub/linux/mips/doc/ABI/mipsabi.pdf>
[4] "Undo dynamic symbol state after regular object sym type mismatch",
<https://sourceware.org/ml/binutils/2017-07/msg00265.html>
bfd/
PR ld/21375
* elfxx-mips.h (_bfd_mips_elf_hide_symbol): New prototype.
(_bfd_mips_elf_linker_flags): Update prototype.
* elf32-mips.c (elf_backend_hide_symbol): New macro.
* elf64-mips.c (elf_backend_hide_symbol): Likewise.
* elfn32-mips.c (elf_backend_hide_symbol): Likewise.
* elfxx-mips.c (mips_elf_link_hash_table): Add
`use_absolute_zero' and `gnu_target' members.
(mips_elf_record_global_got_symbol): Call
`_bfd_mips_elf_hide_symbol' rather than
`_bfd_elf_link_hash_hide_symbol'.
(mips_use_local_got_p): Return FALSE if the symbol is absolute.
(mips_elf_obtain_contents): Reorder function.
(mips_elf_nullify_got_load): New function.
(mips_elf_calculate_relocation): Add `contents' parameter.
Nullify GOT loads or if it is not possible, then redirect GOT
relocations to the `__gnu_absolute_zero' symbol, for references
that are supposed to resolve to zero.
(mips_elf_define_absolute_zero): New function.
(_bfd_mips_elf_check_relocs): Prepare for arrangements made in
`mips_elf_calculate_relocation' for references made via the GOT
that are supposed to resolve to zero.
(_bfd_mips_elf_hide_symbol): New function.
(_bfd_mips_elf_linker_flags): Add the `gnu_target' parameter,
set the `gnu_target' member of the MIPS hash table.
(MIPS_LIBC_ABI_ABSOLUTE): New enumeration constant.
(_bfd_mips_post_process_headers): Use it.
ld/
PR ld/21375
* emultempl/mipself.em: Set `gnu_target' according to ${target}.
(mips_create_output_section_statements): Update call to
`_bfd_mips_elf_linker_flags'.
* testsuite/ld-mips-elf/pr21334.s: Use LWL rather than LW.
* testsuite/ld-mips-elf/pr21334.dd: Update accordingly.
Fix an issue with the SEGMENT_START builtin function where its result is
absolute when taken from the default supplied, and section-relative when
taken from a `-T' command-line override. This is against documentation,
inconsistent and unexpected, and with PIE executables gives an incorrect
result with the `__executable_start' symbol.
Make the result of SEGMENT_START always section-relative then.
ld/
* ldexp.c (fold_binary): Always make the result of SEGMENT_START
section-relative.
* testsuite/ld-scripts/segment-start.d: New test.
* testsuite/ld-scripts/segment-start.ld: New test linker script.
* testsuite/ld-scripts/segment-start.s: New test source.
* testsuite/ld-scripts/script.exp: Run the new test.
Avoid a division by zero and thus a linker crash in SEGMENT_START script
builtin function handling, by not checking the value supplied with a
`-T' command-line override against the maximum page size if that has not
been set.
ld/
* ldexp.c (fold_binary): Check that `config.maxpagesize' is
non-zero before using it as a divisor.
Fixes pr23591 test failures on hppa64-hpux and score-elf, and xfails
frv-linux and lm32-linux.
PR ld/23591
* testsuite/ld-elf/pr23591a.s,
* testsuite/ld-elf/pr23591b.s,
* testsuite/ld-elf/pr23591c.s: Don't start directives in first column.
* testsuite/ld-elf/pr23591.d: xfail frv-linux and lm32-linux.
Allow __start___sancov_cntrs as a local symbol.
When there are more than one input sections with the same section name,
SECNAME, linker picks the first one to define __start_SECNAME and
__stop_SECNAME symbols. When the first input section is removed by
comdat group, we need to check if there is still an output section
with section name SECNAME.
PR ld/23591
* ldlang.c (undef_start_stop): Lookup section in output with
the same name.
* testsuite/ld-elf/pr23591.d: New file.
* testsuite/ld-elf/pr23591a.s: Likewise.
* testsuite/ld-elf/pr23591b.s: Likewise.
* testsuite/ld-elf/pr23591c.s: Likewise.
Pass -z separate-code to ld for property-x86-4a tests to generate
the expected .note.gnu.property section. Also run i386 tests for
x86_64-*-elf* targets.
* testsuite/ld-i386/i386.exp: Also run for x86_64-*-elf* targets.
* testsuite/ld-i386/property-x86-4a.d: Pass -z separate-code to
ld.
* testsuite/ld-x86-64/property-x86-4a-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-4a.d: Likewise.
Since x86 assembler may generate .note.gnu.property section and S-records
can't handle .note.gnu.property sections, add -mx86-used-note=no to
S-records tests on ELF/x86 targets to avoid .note.gnu.property section.
* testsuite/ld-srec/srec.exp: Append -Wa,-mx86-used-note=no to
CC and CXX on ELF/x86 targets.
Since only the GNU_PROPERTY_X86_UINT32_VALID bit may be set in data-only
relocatable objects which don't contain any instructions, linker
shouldn't mask out the GNU_PROPERTY_X86_UINT32_VALID bit when merging
GNU_PROPERTY_X86_XXX bits. Otherwise, linker output doesn't contain
GNU_PROPERTY_X86_XXX property with any data-only relocatable inputs.
This patch keeps the GNU_PROPERTY_X86_UINT32_VALID bit and updates
readelf to print "<None>" if GNU_PROPERTY_X86_XXX property only has
the GNU_PROPERTY_X86_UINT32_VALID bit.
bfd/
* elfxx-x86.c (_bfd_x86_elf_parse_gnu_properties): Don't mask
out the GNU_PROPERTY_X86_UINT32_VALID bit.
binutils/
* readelf.c (decode_x86_isa): Print <None> if bitmask only
contains the GNU_PROPERTY_X86_UINT32_VALID bit.
(decode_x86_feature_1): Likewise.
(decode_x86_feature_2): Likewise.
(print_gnu_property_note): Don't mask out the
GNU_PROPERTY_X86_UINT32_VALID bit.
* testsuite/binutils-all/i386/pr21231b.d: Updated.
* testsuite/binutils-all/x86-64/pr21231b.d: Likewise.
gas/
* testsuite/gas/i386/i386.exp: Run property-1 and
x86-64-property-1.
* testsuite/gas/i386/property-1.d: New file.
* testsuite/gas/i386/property-1.s: Likewise.
* testsuite/gas/i386/x86-64-property-1.d: Likewise.
ld/
* testsuite/ld-i386/i386.exp: Run property-x86-5.
* testsuite/ld-i386/property-x86-5.d: New file.
* testsuite/ld-x86-64/property-x86-5-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-5.d: Likewise.
* testsuite/ld-x86-64/property-x86-5a.s: Likewise.
* testsuite/ld-x86-64/property-x86-5b.s: Likewise.
* testsuite/ld-x86-64/x86-64.exp: Run property-x86-5 and
property-x86-5-x32.
git commit 702d16713 broke expressions using CONSTANT(COMMONPAGESIZE)
in ALIGN or SUBALIGN of output section statements, because these
optional fields were evaluated at script parse time and the patch in
question delayed setting of config.commonpagesize. The right thing to
do is keep the tree representation of those fields for later
evaluation.
PR 23571
* ldlang.h (section_alignment): Make it an expression tree.
(subsection_alignment): Likewise.
* ldlang.c (topower): Delete.
(output_section_statement_newfunc): Adjust initialization.
(init_os): Evaluate section_alignment.
(lang_size_sections_1): Likewise.
(size_input_section): Evaluate subsection_alignment.
(lang_enter_output_section_statement): Don't evaluate here.
(lang_new_phdr): Use exp_get_vma rather than exp_get_value_int.
* ldexp.h (exp_get_value_int): Delete.
(exp_get_power): Declare.
* ldexp.c (exp_get_value_int): Delete.
(exp_get_power): New function.
* emultempl/pe.em (place_orphan): Build expression for section
alignment.
* emultempl/pep.em (place_orphan): Likewise.
* testsuite/ld-scripts/pr23571.d,
* testsuite/ld-scripts/pr23571.t: New test.
* testsuite/ld-scripts/align.exp: Run it.
ld/ChangeLog:
* testsuite/ld-mips-elf/mips-elf-flags.exp
(check_ld_support_32bit, check_is_32bit_args): New procedures.
(good_combination, bad_combination): Skip 32bit test if ld
not support 32bit emulations.
We force __ehdr_start to defined in before_allocation, then restore
the type and a union after dynamic symbols have been allocated.
The union contains a number of structs, all starting with a "next"
pointer, and various fields depending on the symbol type. The old
code restored the entire union, but it isn't necessary to restore the
"next" pointer, and in fact it could be wrong if __ehdr_start happened
to be last on the list and some symbols were added before restoring.
* emultempl/elf32.em (before_allocation): Don't restore
__ehdr_start u.*.next pointer.
There is no need to generate .note.gnu.property section with empty
X86_FEATURE_1_AND property. This patch adds fixup_gnu_properties
to ELF linker backend so that x86 backend can remove it.
bfd/
PR ld/23515
* elf-bfd.h (elf_backend_data): Add fixup_gnu_properties.
* elf-properties.c (_bfd_elf_link_setup_gnu_properties): Call
backend fixup_gnu_properties if it isn't NULL. Discard
.note.gnu.property section if all properties have been removed.
* elfxx-target.h (elf_backend_fixup_gnu_properties): New.
(elfNN_bed): Initialize fixup_gnu_properties.
* elfxx-x86.c (_bfd_x86_elf_link_fixup_gnu_properties): New
function.
* elfxx-x86.h (_bfd_x86_elf_link_fixup_gnu_properties): New
prototype.
(elf_backend_fixup_gnu_properties): New.
ld/
PR ld/23515
* testsuite/ld-i386/ibt-plt-2a.d: Updated.
* testsuite/ld-i386/ibt-plt-2b.d: Likewise.
* testsuite/ld-x86-64/ibt-plt-2a-x32.d: Likewise.
* testsuite/ld-x86-64/ibt-plt-2a.d: Likewise.
* testsuite/ld-x86-64/ibt-plt-2b-x32.d: Likewise.
* testsuite/ld-x86-64/ibt-plt-2b.d: Likewise.
Existing properties may be removed during property merging. We avoid
adding X86_ISA_1_NEEDED property only if existing properties won't be
removed.
bfd/
PR ld/23428
* elfxx-x86.c (_bfd_x86_elf_link_setup_gnu_properties): Don't
add X86_ISA_1_NEEDED property only if existing properties won't
be removed.
ld/
PR ld/23428
* testsuite/ld-elf/dummy.s: New file.
* testsuite/ld-elf/linux-x86.S: Add X86_FEATURE_1_AND property.
* testsuite/ld-elf/linux-x86.exp: Add dummy.s to pr23428.
Without the GNU_PROPERTY_X86_ISA_1_USED property, all ISAs may be used.
If a bit in the GNU_PROPERTY_X86_ISA_1_USED property is unset, the
corresponding x86 instruction set isn’t used. When merging properties
from 2 input files and one input file doesn't have the
GNU_PROPERTY_X86_ISA_1_USED property, the output file shouldn't have
it neither. This patch removes the GNU_PROPERTY_X86_ISA_1_USED
property if an input file doesn't have it.
This patch replaces the GNU_PROPERTY_X86_ISA_1_USED property with the
GNU_PROPERTY_X86_ISA_1_NEEDED property which is the minimum ISA
requirement.
bfd/
PR ld/23486
* elfxx-x86.c (_bfd_x86_elf_merge_gnu_properties): Remove
GNU_PROPERTY_X86_ISA_1_USED if an input file doesn't have it.
(_bfd_x86_elf_link_setup_gnu_properties): Adding the
GNU_PROPERTY_X86_ISA_1_NEEDED, instead of
GNU_PROPERTY_X86_ISA_1_USED, property.
ld/
PR ld/23486
* testsuite/ld-i386/i386.exp: Run PR ld/23486 tests.
* testsuite/ld-x86-64/x86-64.exp: Likewise.
* testsuite/ld-i386/pr23486a.d: New file.
* testsuite/ld-i386/pr23486b.d: Likewise.
* testsuite/ld-x86-64/pr23486a-x32.d: Likewise.
* testsuite/ld-x86-64/pr23486a.d: Likewise.
* testsuite/ld-x86-64/pr23486a.s: Likewise.
* testsuite/ld-x86-64/pr23486b-x32.d: Likewise.
* testsuite/ld-x86-64/pr23486b.d: Likewise.
* testsuite/ld-x86-64/pr23486b.s: Likewise.
* testsuite/ld-i386/property-3.r: Remove "x86 ISA used".
* testsuite/ld-i386/property-4.r: Likewise.
* testsuite/ld-i386/property-5.r: Likewise.
* testsuite/ld-i386/property-x86-ibt3a.d: Likewise.
* testsuite/ld-i386/property-x86-ibt3b.d: Likewise.
* testsuite/ld-i386/property-x86-shstk3a.d: Likewise.
* testsuite/ld-i386/property-x86-shstk3b.d: Likewise.
* testsuite/ld-x86-64/property-3.r: Likewise.
* testsuite/ld-x86-64/property-4.r: Likewise.
* testsuite/ld-x86-64/property-5.r: Likewise.
* testsuite/ld-x86-64/property-x86-ibt3a-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-ibt3a.d: Likewise.
* testsuite/ld-x86-64/property-x86-ibt3b-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-ibt3b.d: Likewise.
* testsuite/ld-x86-64/property-x86-shstk3a-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-shstk3a.d: Likewise.
* testsuite/ld-x86-64/property-x86-shstk3b-x32.d: Likewise.
* testsuite/ld-x86-64/property-x86-shstk3b.d: Likewise.
This patch generates EH info for the new _notoc linkage stubs, to
support unwinding from asynchronous signal handlers. Unwinding
through the __tls_get_addr_opt stub was already supported, but that
was just a single stub. With multiple stubs the EH opcodes need to be
emitted and sized when iterating over stubs, so this is done when
emitting and sizing the stub code. Emitting the CIEs and FDEs is done
when sizing the stubs, as we did before in order to have the linker
generated FDEs indexed in .eh_frame_hdr. I moved the final tweaks to
FDEs from ppc64_elf_finish_dynamic_sections to ppc64_elf_build_stubs
simply because it's tidier to be done with them at that point.
bfd/
* elf64-ppc.c (struct map_stub): Delete tls_get_addr_opt_bctrl.
Add lr_restore, eh_size and eh_base.
(eh_advance, eh_advance_size): New functions.
(build_tls_get_addr_stub): Emit EH info for stub.
(ppc_build_one_stub): Likewise for _notoc stubs.
(ppc_size_one_stub): Size EH info for stub.
(group_sections): Init new map_stub fields.
(stub_eh_frame_size): Delete.
(ppc64_elf_size_stubs): Size EH info for stubs. Set up dummy EH
program for stubs.
(ppc64_elf_build_stubs): Reinit new map_stub fields. Set FDE
offset to stub section here..
(ppc64_elf_finish_dynamic_sections): ..rather than here.
ld/
* testsuite/ld-powerpc/notoc.s: Generate some cfi.
* testsuite/ld-powerpc/notoc.d: Adjust.
* testsuite/ld-powerpc/notoc.wf: New file.
* testsuite/ld-powerpc/powerpc.exp: Run "ext" and "notoc" tests
as run_ld_link_tests rather than run_dump_test.
R_PPC64_REL24_NOTOC is used on calls like "bl foo@notoc" to tell the
linker that linkage stubs for PLT calls or long branches can't use r2
for pic addressing. Instead, new stubs that generate pc-relative
addresses are used. One complication is that pc-relative offsets to
the PLT may need to be 64-bit in large programs, in contrast to the
toc-relative addressing used by older PLT linkage stubs where a 32-bit
offset is sufficient until the PLT itself exceeds 2G in size.
.eh_frame info to cover the _notoc stubs is yet to be implemented.
bfd/
* elf64-ppc.c (ADDI_R12_R11, ADDI_R12_R12, LIS_R12),
(ADDIS_R12_R11, ORIS_R12_R12_0, ORI_R12_R12_0),
(SLDI_R12_R12_32, LDX_R12_R11_R12, ADD_R12_R11_R12): Define.
(ppc64_elf_howto_raw): Add R_PPC64_REL24_NOTOC entry.
(ppc64_elf_reloc_type_lookup): Support R_PPC64_REL24_NOTOC.
(ppc_stub_type): Add ppc_stub_long_branch_notoc,
ppc_stub_long_branch_both, ppc_stub_plt_branch_notoc,
ppc_stub_plt_branch_both, ppc_stub_plt_call_notoc, and
ppc_stub_plt_call_both.
(is_branch_reloc): Add R_PPC64_REL24_NOTOC.
(build_offset, size_offset): New functions.
(plt_stub_size): Support plt_call_notoc and plt_call_both.
(ppc_build_one_stub, ppc_size_one_stub): Support new stubs.
(toc_adjusting_stub_needed): Handle R_PPC64_REL24_NOTOC.
(ppc64_elf_size_stubs): Likewise, and new stubs.
(ppc64_elf_build_stubs, ppc64_elf_relocate_section): Likewise.
* reloc.c: Add BFD_RELOC_PPC64_REL24_NOTOC.
* bfd-in2.h: Regenerate.
* libbfd.h: Regenerate.
gas/
* config/tc-ppc.c (ppc_elf_suffix): Support @notoc.
(ppc_force_relocation, ppc_fix_adjustable): Handle REL24_NOTOC.
ld/
* testsuite/ld-powerpc/ext.d,
* testsuite/ld-powerpc/ext.s,
* testsuite/ld-powerpc/ext.lnk,
* testsuite/ld-powerpc/notoc.d,
* testsuite/ld-powerpc/notoc.s: New tests.
* testsuite/ld-powerpc/powerpc.exp: Run them.
Not a lot is conveyed by putting _r2off in a stub symbol that can't be
seen by inspecting the stub code or the toc restoring instruction
immediately after a call via such a stub. Also, we don't distinguish
plt_call stub symbols from plt_call_r2save stub symbols, so this patch
makes long branch and plt branch stub symbols consistent with that
decision.
bfd/
* elf64-ppc.c (ppc_build_one_stub): Lose "_r2off" in stub symbols.
ld/
* testsuite/ld-powerpc/elfv2exe.d: Adjust for stub symbol change.
* testsuite/ld-powerpc/tocopt6.d: Likewise.
The .note.gnu.property section should be aligned to 4 bytes for x32.
* testsuite/ld-x86-64/property-x86-3.s: Use ".p2align 2" to
align .note.gnu.property section if __64_bit__ is undefined.
A small rework of the PRU GCC port exposed that CIE data alignment is
erroneously set to 4 for PRU in GAS. In fact PRU stack must be aligned to 1.
Set the macro to -1, to allow output from GCC to be assembled without errors.
Also, while at it, set DWARF2 HW register numbering to follow latest
* config/tc-pru.c (pru_regname_to_dw2regnum): Return the starting HW
byte-register number.
(pru_frame_initial_instructions): Use byte-numbering for FP index.
* config/tc-pru.h (DWARF2_DEFAULT_RETURN_COLUMN): Use number from
latest GCC.
(DWARF2_CIE_DATA_ALIGNMENT): Set to -1.
Add a testcase to limit open files to 16 for AR with plugin. Before
commit 103da91bc0
Author: Nick Clifton <nickc@redhat.com>
Date: Wed Aug 1 14:34:41 2018 +0100
Close resource leaks in the BFD library's plugin handler.
it failed with:
../binutils/ar: tmpdir/pr23460f.o: plugin needed to handle lto object
PR binutils/23460
* testsuite/ld-plugin/lto.exp: Run the PR binutils/23460 test.
* testsuite/ld-plugin/pr23460a.c: New file.
* testsuite/ld-plugin/pr23460b.c: Likewise.
* testsuite/ld-plugin/pr23460c.c: Likewise.
* testsuite/ld-plugin/pr23460d.c: Likewise.
* testsuite/ld-plugin/pr23460e.c: Likewise.
* testsuite/ld-plugin/pr23460f.c: Likewise.
The modified test failed on some powerpc targets due to differences in
default hash style. If the default hash style is both, then more
sections are created, bumping section ids. Section id is used in stub
symbols and although the test is careful to not depend on id in
labels, the stub hash traversal order changes when stub names change.
That lead to the stubs being emitted in a different order and thus not
matching expected output.
* testsuite/ld-powerpc/powerpc.exp: Run tlsopt5 with hash-style
specified.
This patch sets stub_offset in ppc_size_one_stub rather than in
ppc_build_one_stub. That allows the plt stub alignment to be done in
just ppc_size_one_stub rather than both functions. The patch also
corrects the place where the alignment was done, fixing a possible
error in .eh_frame data, and tidies some offset calculations.
bfd/
* elf64-ppc.c (plt_stub_pad): Delay plt_stub_size call until needed.
(ppc_build_one_stub): Don't set stub_offset, instead assert that
it is sane. Don't adjust stub_offset for alignment. Adjust size
calculation. Use "targ" temp when calculating offsets.
(ppc_size_one_stub): Set stub_offset here. Use "targ" temp when
calculating offsets. Adjust for alignment before setting
tls_get_addr_opt_bctrl.
ld/
* testsuite/ld-powerpc/powerpc.exp: Run tlsopt5 with plt alignment.
* testsuite/ld-powerpc/tlsopt5.s: Add extra call.
* testsuite/ld-powerpc/tlsopt5.wf: Adjust expected output.
* testsuite/ld-powerpc/tlsopt5.d: Likewise.
This patch series is a new binutils port for C-SKY processors, including support for both the V1 and V2 processor variants. V1 is derived from the MCore architecture while V2 is substantially different, with mixed 16- and 32-bit instructions, a larger register set, a different (but overlapping) ABI, etc. There is support for bare-metal ELF targets and Linux with both glibc and uClibc.
This code is being contributed jointly by C-SKY Microsystems and Mentor Graphics. C-SKY is responsible for the technical content and has proposed Lifang Xia and Yunhai Shang as port maintainers. (Note that C-SKY does have a corporate copyright assignment on file with the FSF.) Mentor Graphics' role has been cleaning up the code, adding documentation and additional test cases, etc, to address issues we anticipated reviewers would complain about.
bfd * Makefile.am (ALL_MACHINES, ALL_MACHINES_CFILES): Add C-SKY.
(BFD32_BACKENDS, BFD_BACKENDS_CFILES): Likewise.
* Makefile.in: Regenerated.
* archures.c (enum bfd_architecture): Add bfd_arch_csky and
related bfd_mach defines.
(bfd_csky_arch): Declare.
(bfd_archures_list): Add C-SKY.
* bfd-in.h (elf32_csky_build_stubs): Declare.
(elf32_csky_size_stubs): Declare.
(elf32_csky_next_input_section: Declare.
(elf32_csky_setup_section_lists): Declare.
* bfd-in2.h: Regenerated.
* config.bfd: Add C-SKY.
* configure.ac: Likewise.
* configure: Regenerated.
* cpu-csky.c: New file.
* elf-bfd.h (enum elf_target_id): Add C-SKY.
* elf32-csky.c: New file.
* libbfd.h: Regenerated.
* reloc.c: Add C-SKY relocations.
* targets.c (csky_elf32_be_vec, csky_elf32_le_vec): Declare.
(_bfd_target_vector): Add C-SKY target vector entries.
binutils* readelf.c: Include elf/csky.h.
(guess_is_rela): Handle EM_CSKY.
(dump_relocations): Likewise.
(get_machine_name): Likewise.
(is_32bit_abs_reloc): Likewise.
include * dis-asm.h (csky_symbol_is_valid): Declare.
* opcode/csky.h: New file.
opcodes * Makefile.am (TARGET_LIBOPCODES_CFILES): Add csky-dis.c.
* Makefile.in: Regenerated.
* configure.ac: Add C-SKY.
* configure: Regenerated.
* csky-dis.c: New file.
* csky-opc.h: New file.
* disassemble.c (ARCH_csky): Define.
(disassembler, disassemble_init_for_target): Add case for ARCH_csky.
* disassemble.h (print_insn_csky, csky_get_disassembler): Declare.
gas * Makefile.am (TARGET_CPU_CFILES): Add entry for C-SKY.
(TARGET_CPU_HFILES, TARGET_ENV_HFILES): Likewise.
* Makefile.in: Regenerated.
* config/tc-csky.c: New file.
* config/tc-csky.h: New file.
* config/te-csky_abiv1.h: New file.
* config/te-csky_abiv1_linux.h: New file.
* config/te-csky_abiv2.h: New file.
* config/te-csky_abiv2_linux.h: New file.
* configure.tgt: Add C-SKY.
* doc/Makefile.am (CPU_DOCS): Add entry for C-SKY.
* doc/Makefile.in: Regenerated.
* doc/all.texi: Set CSKY feature.
* doc/as.texi (Overview): Add C-SKY options.
(Machine Dependencies): Likewise.
* doc/c-csky.texi: New file.
* testsuite/gas/csky/*: New test cases.
ld * Makefile.am (ALL_EMULATION_SOURCES): Add C-SKY emulations.
(ecskyelf.c, ecskyelf_linux.c): New rules.
* Makefile.in: Regenerated.
* configure.tgt: Add C-SKY.
* emulparams/cskyelf.sh: New file.
* emulparams/cskyelf_linux.sh: New file.
* emultempl/cskyelf.em: New file.
* gen-doc.texi: Add C-SKY.
* ld.texi: Likewise.
(Options specific to C-SKY targets): New section.
* testsuite/ld-csky/*: New tests.
gold * layout.cc (section_name_mapping): Add an entry for
.gnu.build.attributes.
ld * scripttempl/elf.sc: Place .gnu.build.attributes sections with
other read-only sections.
This adds support for ".localentry 1", a new st_other
STO_PPC64_LOCAL_MASK encoding that signifies a function with a single
entry point like ".localentry 0", but unlike a ".localentry 0"
function does not preserve r2.
include/
* elf/ppc64.h: Specify byte offset to local entry for values
of two to six in STO_PPC64_LOCAL_MASK. Clarify r2 return
value for such functions when entering via global entry point.
Specify meaning of a value of one in STO_PPC64_LOCAL_MASK.
bfd/
* elf64-ppc.c (ppc64_elf_size_stubs): Use a ppc_stub_long_branch_r2off
for calls to symbols with STO_PPC64_LOCAL_MASK bits set to 1.
gas/
* config/tc-ppc.c (ppc_elf_localentry): Allow .localentry values
of 1 and 7 to directly set value into STO_PPC64_LOCAL_MASK bits.
ld/testsuite/
* ld-powerpc/elfv2.s: Add .localentry f5,1 testcase.
* ld-powerpc/elfv2exe.d: Update.
* ld-powerpc/elfv2so.d: Update.
One of the ill effects of ld -r is to mash together sections. That
can result in reduced icache performance at runtime due to unexpected
movement of code. Another problem is that sections can become too
large to link on targets that have limited relative addressing. ld -r
--relax attempts to overcome the large section problem for branches by
inserting trampolines, but the powerpc support added lots of
unnecessary trampolines. This patch trims them somewhat.
bfd/
* elf32-ppc.c (ppc_elf_relax_section): Ignore common or undef locals.
Avoid trashing toff with added when used as a symbol index.
Ignore R_PPC_PLTREL24 addends in unused example code. Avoid
creating unnecessary fixups when relocatable.
ld/
* testsuite/ld-powerpc/big.s: New file.
* testsuite/ld-powerpc/relaxrl.d: New test.
* testsuite/ld-powerpc/powerpc.exp: Run new test.
* testsuite/ld-powerpc/relaxr.d: Adjust.
Three tests with individual .exp files can be implemented in less
verbose way with run_dump_test infrastructure. Convert them.
ld/
2018-07-23 Max Filippov <jcmvbkbc@gmail.com>
* testsuite/ld-xtensa/coalesce.d: New file.
* testsuite/ld-xtensa/coalesce.exp: Remove file.
* testsuite/ld-xtensa/diff_overflow.d: New file.
* testsuite/ld-xtensa/diff_overflow.exp: Remove file.
* testsuite/ld-xtensa/lcall.d: New file.
* testsuite/ld-xtensa/lcall.exp: Remove file.
* testsuite/ld-xtensa/xtensa.exp (coalesce, diff_overflow)
(lcall): New tests.
ld/
2018-07-23 Max Filippov <jcmvbkbc@gmail.com>
* testsuite/ld-xtensa/relax-static-defs.s: New file.
* testsuite/ld-xtensa/relax-static-local-pie.d: New file.
* testsuite/ld-xtensa/relax-static-local-shared.d: New file.
* testsuite/ld-xtensa/relax-static-local.s: New file.
* testsuite/ld-xtensa/relax-static-pie.d: New file.
* testsuite/ld-xtensa/relax-static-shared.d: New file.
* testsuite/ld-xtensa/relax-static.s: New file.
* testsuite/ld-xtensa/relax-undef-weak-local-pie.d: New file.
* testsuite/ld-xtensa/relax-undef-weak-local-shared.d: New file.
* testsuite/ld-xtensa/relax-undef-weak-local.s: New file.
* testsuite/ld-xtensa/relax-undef-weak-pie.d: New file.
* testsuite/ld-xtensa/relax-undef-weak-shared.d: New file.
* testsuite/ld-xtensa/relax-undef-weak.s: New file.
* testsuite/ld-xtensa/xtensa.exp: New file.
xtensa.exp in fact only checks xtensa*-*-linux* configurations, rename
it to xtensa-linux.exp to allow xtensa.exp to check xtensa*-*-*.
ld/
2018-07-23 Max Filippov <jcmvbkbc@gmail.com>
* testsuite/ld-xtensa/xtensa.exp: Rename to xtensa-linux.exp.
PowerPC64 fails here due to emitting a warning about discarded dynamic
relocations. That's a good thing, since accidentally discarding
dynamic relocations will likely result in a non-working binary.
* testsuite/ld-elf/reloc-discard-warn.d: New.
* testsuite/ld-elf/reloc-discard.d: Skip test on PowerPC64.
On many targets, like x86, .rel.dyn/.rela.dyn section is combined from
different .rel/.rela sections by -z combreloc. To discard dynamic
relocation section, we need to discard .rel.* and .rela.* sections
instead of .rel.dyn and .rela.dyn sections.
Note: This test fails for targets which issue a warning when dynamic
section is discarded.
* testsuite/ld-elf/reloc-discard.ld: Discard .rel.* and .rela.*
sections instead of .rel.dyn and .rela.dyn sections.
When -z separate-code, which is enabled by default for Linux/x86, is
used to create executable, ld won't place any data in the code-only
PT_LOAD segment. If there are no data sections placed before the
code-only PT_LOAD segment, the program headers won't be mapped into
any PT_LOAD segment. When the executable tries to access it (based
on the program header address passed in AT_PHDR), it will lead to
segfault. This patch inserts a GNU_PROPERTY_X86_ISA_1_USED note if
there may be no data sections before the text section so that the
first PT_LOAD segment won't be code-only and will contain the program
header.
Testcases are adjusted to either pass "-z noseparate-code" to ld or
discard the .note.gnu.property section. A Linux/x86 run-time test is
added.
bfd/
PR ld/23428
* elfxx-x86.c (_bfd_x86_elf_link_setup_gnu_properties): If the
separate code program header is needed, make sure that the first
read-only PT_LOAD segment has no code by adding a
GNU_PROPERTY_X86_ISA_1_USED note.
ld/
PR ld/23428
* testsuite/ld-elf/linux-x86.S: New file.
* testsuite/ld-elf/linux-x86.exp: Likewise.
* testsuite/ld-elf/pr23428.c: Likewise.
* testsuite/ld-elf/sec64k.exp: Pass "-z noseparate-code" to ld
for Linux/x86 targets.
* testsuite/ld-i386/abs-iamcu.d: Likewise.
* testsuite/ld-i386/abs.d: Likewise.
* testsuite/ld-i386/pr12718.d: Likewise.
* testsuite/ld-i386/pr12921.d: Likewise.
* testsuite/ld-x86-64/abs-k1om.d: Likewise.
* testsuite/ld-x86-64/abs-l1om.d: Likewise.
* testsuite/ld-x86-64/abs.d: Likewise.
* testsuite/ld-x86-64/pr12718.d: Likewise.
* testsuite/ld-x86-64/pr12921.d: Likewise.
* testsuite/ld-linkonce/zeroeh.ld: Discard .note.gnu.property
section.
* testsuite/ld-scripts/print-memory-usage.t: Likewise.
* testsuite/ld-scripts/size-2.t: Likewise.
* testsuite/lib/ld-lib.exp (run_ld_link_exec_tests): Use ld
to create executable if language is "asm".
This patch fixes some ifunc testisms after H.J. Lu's patch to enable the
use of IFUNC pointers in position dependent code for binutils. See PR
LD/23169 in binutils bugzilla.
The aarch64 ifunc error message test was changed to no longer expect
this error message as this is now an accepted combination. This patch
also disables the executable tests added by H.J. Lu for aarch64, just as
Alan Modra did with his patch, as these tests only seem to work on some
architectures.
ld/ChangeLog:
2018-07-19 Andre Vieira <andre.simoesdiasvieira@arm.com>
* testsuite/ld-aarch64/ifunc-9.d: Remove no longer expected error.
* testsuite/ld-ifunc/ifunc.exp: Disable tests for aarch64.
Fix a crash that occurs in `_bfd_mips_elf_finish_dynamic_sections' if a
dynamic relocation section has been created, but marked to be discarded
by an assignment to the /DISCARD/ output section in a linker script.
In that case the output section is the absolute section, which has no
ELF section data attached, so trying to set its `sh_size' parameter
causes a null pointer dereference.
This is only done as the value for the DT_RELSZ dynamic entry is being
set, so fix the problem by not creating DT_REL, DT_RELSZ or DT_RELENT
dynamic entries in the first place if the dynamic relocation section
will not be output, as with no dynamic relocation data present these
would not serve their purpose anyway.
Add a generic ELF test case to verify that no dynamic relocation data is
reported in the dynamic segment.
bfd/
* elfxx-mips.c (_bfd_mips_elf_size_dynamic_sections): Do not
create DT_REL, DT_RELSZ or DT_RELENT dynamic entries if the
dynamic relocation section will be discarded from output.
(_bfd_mips_elf_finish_dynamic_sections) <DT_RELSZ>: Assert that
the dynamic relocation section will be retained in output.
ld/
* testsuite/ld-elf/reloc-discard.d: New test.
* testsuite/ld-elf/reloc-discard.ld: New test linker script.
* testsuite/ld-elf/reloc-discard.s: New test source.
Currently on S/390 the .got.plt always comes first which prevents the
GNU_RELRO segment from being extended across the non-plt GOT entries.
Just swapping both unfortunately is not that simple since our ABI
requires the _GLOBAL_OFFSET_TABLE_ symbol to point to the very
beginning of the entire GOT. Of the 3 magic GOT entries the first is
accessed via got pointer while second and third are being accessed via
DT_PLTGOT. In order to keep them together we make DT_PLTGOT to point
to the .got instead of .got.plt. However, this violates an assumption
in the dynamic linker prelink undo code about the GOTPLT entries
starting at DT_PLTGOT + 3. We got rid of this requirement with a
Glibc patch already in version 2.24:
https://sourceware.org/ml/libc-alpha/2016-06/msg01302.html
So the S/390 relro GOT layout will look like this with this patch:
+----------------------------------+
|got[0]: DYNAMIC | <--- _GLOBAL_OFFSET_TABLE_ == DT_PLTGOT .got
|got[1]: link_map parm |
|got[2]: &_dl_runtime_resolve |
+----------------------------------+
| | non-plt GOT entries
| |
| |
+----------------------------------+
| | <--- .gotplt, PLT GOT entries
| |
| |
| |
+----------------------------------+
The patch detects the current layout in size_dynamic_section in order
to deal also with linker scripts not generated by this ld version.
With partial relro enabled we pick a linker script where .got and
.got.plt are swapped which then triggers the rest of the logic.
ld/ChangeLog:
2018-07-18 Andreas Krebbel <krebbel@linux.ibm.com>
* emulparams/elf64_s390.sh: Define GENERATE_RELRO_SCRIPT and
SEPARATE_GOTPLT.
* testsuite/ld-s390/gotreloc_64-relro-1.dd: New test.
* testsuite/ld-s390/gotreloc_64-norelro-1.dd: Renamed from ...
* testsuite/ld-s390/gotreloc_64-1.dd: ... this.
* testsuite/ld-s390/s390.exp: Split the GOT testcase into two.
bfd/ChangeLog:
2018-07-18 Andreas Krebbel <krebbel@linux.ibm.com>
* elf-s390-common.c (s390_gotplt_after_got_p): New function.
(s390_got_pointer): New function.
(s390_got_offset): New function.
(s390_gotplt_offset): New function.
* elf64-s390.c (allocate_dynrelocs): Adjust comment.
(elf_s390_size_dynamic_sections): Move space for magic GOT entries
from .got.plt to .got if necessary and pick the right location for
_GLOBAL_OFFSET_TABLE_.
(elf_s390_relocate_section): Use the wrapper functions from
elf-s390-common.c to deal with both possible layouts (either .got
or .got.plt first).
(elf_s390_finish_dynamic_sections): Likewise.
(elf_s390_finish_dynamic_symbol): Make the location of the GOT
magic entries conditional.
With this patch dedicated linker scripts can be generated for partial
relro triggered by defining GENERATE_RELRO_SCRIPT in the target
specific scripts.
This is necessary for e.g. S/390 where usually the .got.plt comes
first and prevents the relro segment from being extended across the
non-plt GOT entries.
The patch started with the work from Marcin taken from the mwk user
branches. However, the patch needed substantial changes due to the
'separate code' feature which got committed in the meantime.
ld/ChangeLog:
2018-07-18 Andreas Krebbel <krebbel@linux.ibm.com>
Marcin Kościelnicki <koriakin@0x04.net>
* emultempl/elf32.em: Add code to pick dedicated linker scripts
for partial relro.
* genscripts.sh: Generate dedicated linker scripts for partial relro.
It is usually possible to tell absolute and ordinary symbols apart in
BFD throughout the link, by checking whether the section that owns the
symbol is absolute or not.
That however does not work for ordinary symbols defined in a linker
script outside an output section statement. Initially such symbols are
entered into to the link hash as absolute symbols, owned by the absolute
section. A flag is set in the internal linker expression defining such
symbols to tell the linker to convert them to section-relative ones in
the final phase of the link. That flag is however not accessible to BFD
linker code, including BFD target code in particular.
Add a flag to the link hash then to copy the information held in the
linker expression. Define a macro, `bfd_is_abs_symbol', for BFD code to
use where determining whether a symbol is absolute or ordinary is
required before the final link phase.
This macro will correctly identify the special `__ehdr_start' symbol as
ordinary throughout link, for example, even though early on it will be
assigned to the absolute section. Of course this does not let BFD code
identify what the symbol's ultimate section will be before the final
link phase has converted this symbol (in `update_definedness').
include/
* bfdlink.h (bfd_link_hash_entry): Add `rel_from_abs' member.
bfd/
* linker.c (bfd_is_abs_symbol): New macro.
* bfd-in2.h: Regenerate.
ld/
* ldexp.c (exp_fold_tree_1) <etree_assign, etree_provide>
<etree_provided>: Copy expression's `rel_from_abs' flag to the
link hash.
Complement commit 500c05ddbe ("MIPS/ld/testsuite: Limit export class
call reloc tests to DSO targets") and also check for target's shared
library support in determining whether to run reloc 6 tests, which
require it. No changes in results as all targets currently enabled for
NewABI testing support shared libraries.
ld/
* testsuite/ld-mips-elf/mips-elf.exp: Limit reloc 6 tests to
shared library targets.
Correct an issue with commit 0f20cc3522 ("TLS support for MIPS"),
<https://sourceware.org/ml/binutils/2005-02/msg00607.html>, where a
condition used to determine whether to use a dynamic symbol for GD, LD
and IE TLS dynamic relocations against a symbol that has been defined
locally has been incorrectly reversed.
It's executables rather than dynamic shared objects where no symbol is
required, because such symbols cannot be preempted and therefore their
values (thread pointer offsets) are fixed at the static link time as is
the associated module ID of the main executable, so the original
condition should have been `shared' instead of `!shared'. This wrong
condition was then later converted from `!shared' to `!bfd_link_pic',
with commit 0e1862bb40 ("Add output_type to bfd_link_info").
Use the correct `bfd_link_dll' condition then, and adjust code for the
dynamic symbol index possibly being -1 as with symbols that have been
forced local, removing unnecessary dynamic relocations from dynamic
regular executables. PIE executables are unaffected as the existing
condition excluded them by chance due to the conversion mentioned above.
Adjust test cases accordingly.
bfd/
* elfxx-mips.c (mips_tls_got_relocs): Use `bfd_link_dll' rather
than `!bfd_link_pic' in determining the dynamic symbol index.
Avoid the index of -1.
(mips_elf_initialize_tls_slots): Likewise. Flatten code by
moving `dyn' to the beginning of the function block.
ld/
* testsuite/ld-mips-elf/tlsdyn-o32.d: Update test for dynamic
relocation removal.
* testsuite/ld-mips-elf/tlsdyn-o32.got: Likewise.
* testsuite/ld-mips-elf/tlsdyn-o32-1.d: Likewise.
* testsuite/ld-mips-elf/tlsdyn-o32-1.got: Likewise.
* testsuite/ld-mips-elf/tlsdyn-o32-2.d: Likewise.
* testsuite/ld-mips-elf/tlsdyn-o32-2.got: Likewise.
* testsuite/ld-mips-elf/tlsdyn-o32-3.d: Likewise.
* testsuite/ld-mips-elf/tlsdyn-o32-3.got: Likewise.
Correct a commit 0e1862bb40 ("Add output_type to bfd_link_info") issue
and use `bfd_link_dll' rather than `bfd_link_pic' in determining whether
to fully resolve GD, LD and IE TLS relocations referring to symbols
locally defined rather than deferring them to the load time by means of
dynamic relocations.
Such symbols cannot be preempted in PIE executables, which are
necessarily PIC, and therefore their values (thread pointer offsets) are
fixed at the static link time as is the associated module ID of the main
executable.
Given the `tlsbin-o32.s' and `tlsdyn-o32.s' sources from our test suite
this removes the absolute TLS relocations from the static:
DYNAMIC RELOCATION RECORDS
OFFSET TYPE VALUE
00000000 R_MIPS_NONE *ABS*
1000002c R_MIPS_TLS_TPREL32 *ABS*
10000030 R_MIPS_TLS_DTPMOD32 *ABS*
10000038 R_MIPS_TLS_DTPMOD32 *ABS*
and the dynamic:
DYNAMIC RELOCATION RECORDS
OFFSET TYPE VALUE
00000000 R_MIPS_NONE *ABS*
1000002c R_MIPS_TLS_TPREL32 *ABS*
10000038 R_MIPS_TLS_DTPMOD32 *ABS*
10000044 R_MIPS_TLS_DTPMOD32 *ABS*
10000030 R_MIPS_TLS_DTPMOD32 tlsvar_gd
10000034 R_MIPS_TLS_DTPREL32 tlsvar_gd
10000040 R_MIPS_TLS_TPREL32 tlsvar_ie
PIE executable respectively, as reported by `objdump -R', and fills the
corresponding GOT slots with the values expected, as recorded with the
test cases added. The new output from `objdump -R' is:
DYNAMIC RELOCATION RECORDS (none)
and:
DYNAMIC RELOCATION RECORDS
OFFSET TYPE VALUE
00000000 R_MIPS_NONE *ABS*
10000030 R_MIPS_TLS_DTPMOD32 tlsvar_gd
10000034 R_MIPS_TLS_DTPREL32 tlsvar_gd
10000040 R_MIPS_TLS_TPREL32 tlsvar_ie
for the static and the dynamic executable respectively.
2018-07-11 Maciej W. Rozycki <macro@mips.com>
Rich Felker <bugdal@aerifal.cx>
bfd/
PR ld/22570
* elfxx-mips.c (mips_tls_got_relocs): Use `bfd_link_dll' rather
than `bfd_link_pic' to determine whether dynamic relocations are
to be produced.
(mips_elf_initialize_tls_slots): Likewise.
ld/
PR ld/22570
* testsuite/ld-mips-elf/tlsbin-pie-o32.d: New test.
* testsuite/ld-mips-elf/tlsbin-pie-o32.got: New test.
* testsuite/ld-mips-elf/tlsdyn-pie-o32.d: New test.
* testsuite/ld-mips-elf/tlsdyn-pie-o32.got: New test.
* testsuite/ld-mips-elf/mips-elf.exp: Run the new tests.
git commit 624940689a wrongly changed fill.d and fill16.d notarget
entries to xfail, so revert that change and instead replace notarget
with skip. The two tests are complementary.
This patch also modifies the pr20022 test to use .data, avoiding
xfails on targets that complain about dynamic relocations in .text.
This shows a bug in metag which discards section _foo in pr2022.so.
* testsuite/ld-elf/hash.d: Comment on mips xfail.
* testsuite/ld-gc/pr20022b.s: Use .data not .text.
* testsuite/ld-gc/pr20022.d: Remove xfails.
* testsuite/ld-scripts/fill.d: Revert most of last patch, but use
skip rather than notarget.
* testsuite/ld-scripts/fill16.d: Likewise.
Only run MIPS/LD export class call relocation tests with shared library
targets, avoiding:
.../ld/ld-new: -shared not supported
linker errors and removing:
FAIL: MIPS export class call relocation test (o32)
regressions with `mipsel-ps2-elf' and `mips64el-ps2-elf' targets.
ld/
* testsuite/ld-mips-elf/mips-elf.exp: Limit export class call
relocation tests to shared library targets.
elf32-xgate.c contains many functions that are only stubs and
elf32-xgate.h contains unused declarations. While this might be
reasonable for the initial commit of a port with subsequent work
fleshing out the stubs, xgate has only had two minor target specific
patches since the initial commit over six years ago. The rest of the
changes have been general maintenance work applied to all ELF targets,
and some of this work could have been avoided if the stubs hadn't been
there. So this patch removes all the stubs.
I've kept the functionality of the old elf32_xgate_add_symbol_hook,
implemented in elf32_xgate_backend_symbol_processing. Presumably,
that's to set the symbol st_target_internal flag for use in
elf32-m68hc1x.c:elf32_m68hc11_relocate_section.
The empty elf32_xgate_relocate_section meant that xgate had no linker.
Or at least, no linker relocation processing. Deleting the
elf_backend_relocate_section define means the target will now use the
generic linker reloc processing. How good that is will depend on the
accuracy of the reloc howtos..
I haven't updated the ld testsuite to xfail tests expected to fail
for generic elf targets.
bfd/
* elf32-xgate.h: Delete.
* elf32-xgate.c: Delete unnecessary forward declarations, add two
that are now needed.
(xgate_elf_bfd_link_hash_table_create)
(xgate_elf_bfd_link_hash_table_free)
(xgate_elf_set_mach_from_flags, struct xgate_scan_param)
(stub_hash_newfunc, elf32_xgate_add_symbol_hook)
(elf32_xgate_setup_section_lists, elf32_xgate_size_stubs)
(elf32_xgate_build_stubs, elf32_xgate_check_relocs)
(elf32_xgate_relocate_section, _bfd_xgate_elf_set_private_flags)
(elf32_xgate_post_process_headers): Delete.
(elf32_xgate_backend_symbol_processing): New function.
(xgate_elf_ignore_reloc, xgate_elf_special_reloc)
(_bfd_xgate_elf_print_private_bfd_data): Make static.
(ELF_TARGET_ID, elf_info_to_howto, elf_backend_check_relocs)
(elf_backend_relocate_section, elf_backend_object_p)
(elf_backend_final_write_processing, elf_backend_can_gc_sections)
(elf_backend_post_process_headers, elf_backend_add_symbol_hook)
(bfd_elf32_bfd_link_hash_table_create)
(bfd_elf32_bfd_set_private_flags)
(xgate_stub_hash_lookup): Don't define.
(elf_backend_symbol_processing): Define.
* elf-bfd.h (elf_target_id): Delete XGATE_ELF_DATA.
ld/
* emulparams/xgateelf.sh (TEMPLATE_NAME) Set to generic.
(EXTRA_EM_FILE): Set to genelf.
The current default dumps for n64 GOT relocation tests only work for
IRIX targets really, while the Linux dumps are suitable for non-Linux
targets as well. Make the Linux dumps the default then and handle the
IRIX ones as a special case.
Define an `irix' variable as a shorthand for `[istarget *-*-irix*]' and
use it for these n64 GOT relocation tests as well as export class call
relocation tests.
ld/
* testsuite/ld-mips-elf/elf-rel-got-n64.d: Rename to...
* testsuite/ld-mips-elf/elf-rel-got-n64-irix.d: ... this.
* testsuite/ld-mips-elf/elf-rel-got-n64-linux.d: Rename to...
* testsuite/ld-mips-elf/elf-rel-got-n64.d: ... this.
* testsuite/ld-mips-elf/elf-rel-xgot-n64.d: Rename to...
* testsuite/ld-mips-elf/elf-rel-xgot-n64-irix.d: ... this.
* testsuite/ld-mips-elf/elf-rel-xgot-n64-linux.dd: Rename to...
* testsuite/ld-mips-elf/elf-rel-xgot-n64.d: ... this.
* testsuite/ld-mips-elf/mips-elf.exp: Update accordingly.
Define `irix' as a shorthand for `[istarget *-*-irix*]' and use
it throughout.
Factor in the presence of a `.gnu.attributes' section at the end of the
respective dumps:
Disassembly of section .gnu.attributes:
0000000000000000 <.gnu.attributes>:
0: 41000000 bc0f 4 <__dso_displacement+0x4>
4: 0f676e75 jal d9db9d4 <__dso_displacement+0xd9db9d4>
8: 00010000 sll zero,at,0x0
c: 00070401 0x70401
and also ignore any trailing output with the IRIX variant of n64 GOT
relocation tests, like already done with the Linux and the embedded
ones, removing:
FAIL: MIPS ELF got reloc n64
FAIL: MIPS ELF xgot reloc n64
LD testsuite regressions with the `mips-sgi-irix6' target.
ld/
* testsuite/ld-mips-elf/elf-rel-got-n64.d: Add `#pass' at the
end.
* testsuite/ld-mips-elf/elf-rel-xgot-n64.d: Likewise.
Correct a MIPS/BFD linker issue with dynamic symbol and corresponding
GOT entry values being redirected to lazy binding stubs where the stubs
section has been discarded by assigning to the `/DISCARD/' output
section in the linker script used. The issue manifests itself by the
values entered being relative to the absolute section, which is what any
discarded sections are internally assigned in the linker.
For the `stub-dynsym-2.s' piece of code included as a test case with
this change this issue results in the dynamic symbol table and the GOT
looking like:
Symbol table '.dynsym' contains 3 entries:
Num: Value Size Type Bind Vis Ndx Name
0: 00000000 0 NOTYPE LOCAL DEFAULT UND
1: 00000010 0 FUNC GLOBAL DEFAULT UND bar
2: 00000000 0 FUNC GLOBAL DEFAULT UND foo
Primary GOT:
Canonical gp value: 00097ff0
Reserved entries:
Address Access Initial Purpose
00090000 -32752(gp) 00000000 Lazy resolver
00090004 -32748(gp) 80000000 Module pointer (GNU extension)
Global entries:
Address Access Initial Sym.Val. Type Ndx Name
00090008 -32744(gp) 00000010 00000010 FUNC UND bar
0009000c -32740(gp) 00000000 00000000 FUNC UND foo
if assembled to regular MIPS code, or:
Symbol table '.dynsym' contains 3 entries:
Num: Value Size Type Bind Vis Ndx Name
0: 00000000 0 NOTYPE LOCAL DEFAULT UND
1: 0000000d 0 FUNC GLOBAL DEFAULT UND bar
2: 00000001 0 FUNC GLOBAL DEFAULT UND foo
Primary GOT:
Canonical gp value: 00097ff0
Reserved entries:
Address Access Initial Purpose
00090000 -32752(gp) 00000000 Lazy resolver
00090004 -32748(gp) 80000000 Module pointer (GNU extension)
Global entries:
Address Access Initial Sym.Val. Type Ndx Name
00090008 -32744(gp) 0000000d 0000000d FUNC UND bar
0009000c -32740(gp) 00000001 00000001 FUNC UND foo
if assembled to microMIPS code. Symbol values and GOT entries record
the offset into the inexistent stubs section and the ISA bit rather than
zero, which would be the case if a lazy binding stub was not used for
other reasons, such as the value of the symbol being taken for a purpose
other than making a function call (e.g. an R_MIPS_GOT16 relocation).
Correct the issue by refraining from redirecting symbols to lazy binding
stubs if the stubs section is going to be discarded.
bfd/
* elfxx-mips.c (_bfd_mips_elf_adjust_dynamic_symbol): Don't set
`->needs_lazy_stub' if the stubs output section is the absolute
section.
ld/
* testsuite/ld-mips-elf/stub-dynsym-2.dd: New test.
* testsuite/ld-mips-elf/stub-dynsym-2.gd: New test.
* testsuite/ld-mips-elf/stub-dynsym-2.sd: New test.
* testsuite/ld-mips-elf/stub-dynsym-discard-2.gd: New test.
* testsuite/ld-mips-elf/stub-dynsym-discard-2.sd: New test.
* testsuite/ld-mips-elf/stub-dynsym-micromips-2.dd: New test.
* testsuite/ld-mips-elf/stub-dynsym-micromips-2.gd: New test.
* testsuite/ld-mips-elf/stub-dynsym-micromips-2.sd: New test.
* testsuite/ld-mips-elf/stub-dynsym-micromips-insn32-2.dd: New
test.
* testsuite/ld-mips-elf/stub-dynsym-micromips-insn32-2.gd: New
test.
* testsuite/ld-mips-elf/stub-dynsym-micromips-insn32-2.sd: New
test.
* testsuite/ld-mips-elf/stub-dynsym-2.ld: New test linker
script.
* testsuite/ld-mips-elf/stub-dynsym-discard-2.ld: New test
linker script.
* testsuite/ld-mips-elf/mips-elf.exp: Run the new tests.
Bring the LD implementation of `run_dump_test' in line with its binutils
and GAS counterparts and report the UNSUPPORTED status for tests the run
of which has been prevented by means of one or more of `target',
`alltargets' and `notarget' tags. Define `skip', `anyskip' and `noskip'
tags, which do not report anything for tests that are not run.
The rationale behind this is that we want to have unsupported tests
reported to ensure that they have actually been attempted and have not
been accidentally suppressed. Then tests which have target-specific
variants that cannot be expressed with a single .d file can make use of
the newly added tags to silently suppress the uninteresting variants.
ld/
* testsuite/lib/ld-lib.exp (run_dump_test): Call `unsupported'
if the target being tested has been excluded by means of one or
more of `target', `alltargets' and `notarget' tags. Add support
for `skip', `anyskip' and `noskip' tags.
Bring the LD implementation of `run_dump_test' in line with its binutils
and GAS counterparts and use the intended test name, from the `name' tag
if set, for test status reporting as soon as it is available.
ld/
* testsuite/lib/ld-lib.exp (run_dump_test): Move the setting of
`testname' earlier on and use it for test status reporting.
With config.sub now properly returning m68hc12-unknown-elf rather than
m68hc12-unknown-none, more ELF tests run. This patch enables
STB_GNU_UNIQUE processing fixing some testsuite failures that probably
no m68hc12 user cares about, and removes some XPASSes.
bfd/
* elf32-m68hc1x.c (elf32_m68hc11_post_process_headers): Call
_bfd_elf_post_process_headers.
ld/
* testsuite/ld-discard/extern.d: Remove m68hc12 xfail.
* testsuite/ld-discard/start.d: Likewise.
* testsuite/ld-discard/static.d: Likewise.
In case params.thumb_entry_symbol has its default NULL value, using it
to print a warning in gld${EMULATION_NAME}_finish results in a crash.
Use h->root.string instead which either points to
params.thumb_entry_symbol name or to entry_symbol name.
2018-07-09 Christophe Lyon <christophe.lyon@linaro.org>
* emultempl/armelf.em (gld${EMULATION_NAME}_finish): Use the right
symbol name in case of warning.
Change-Id: Iec61a833c0ad538b1440bf326ba67834c314dd63
bfd/
* config.bfd (riscv32*-*-*): Renamed from riscv32-*-*.
(riscv64*-*-*): Likewise.
(riscv-*-*): Add as an alias for riscv32*-*-*.
ld/
* configure.tgt (riscv-*-*): Add as an alias for riscv32*-*-*.
Replace two remaining spelled-out calls to `[istarget mips*-*-linux*]'
in `mips-elf.exp' with $linux_gnu, which is equivalent.
ld/
* testsuite/ld-mips-elf/mips-elf.exp: Replace remaining calls to
`[istarget mips*-*-linux*]' with $linux_gnu.
There is no need to generate x86 ISA properties with empty bits in
linker output.
bfd/
PR ld/23372
* elfxx-x86.c (_bfd_x86_elf_merge_gnu_properties): Remove x86
ISA properties with empty bits.
ld/
PR ld/23372
* testsuite/ld-i386/i386.exp: Run pr23372a and pr23372b.
* testsuite/ld-i386/pr23372a.d: New file.
* testsuite/ld-i386/pr23372a.s: Likewise.
* testsuite/ld-i386/pr23372b.d: Likewise.
* testsuite/ld-i386/pr23372b.s: Likewise.
* testsuite/ld-i386/pr23372c.s: Likewise.
* testsuite/ld-x86-64/pr23372a-x32.d: Likewise.
* testsuite/ld-x86-64/pr23372a.d: Likewise.
* testsuite/ld-x86-64/pr23372a.s: Likewise.
* testsuite/ld-x86-64/pr23372b-x32.d: Likewise.
* testsuite/ld-x86-64/pr23372b.d: Likewise.
* testsuite/ld-x86-64/pr23372b.s: Likewise.
* testsuite/ld-x86-64/pr23372c.s: Likewise.
* testsuite/ld-x86-64/x86-64.exp: Run pr23372a, pr23372a-x32,
pr23372b and pr23372b-x32.
And report the two input files that are incompatible rather than
reporting that an input file is incompatible with the output.
bfd/
* elf-bfd.h (_bfd_elf_ppc_merge_fp_attributes): Update prototype.
* elf32-ppc.c (_bfd_elf_ppc_merge_fp_attributes): Return error
on mismatch. Remove "warning: " from messages. Track last bfd
used to set tags.
(ppc_elf_merge_obj_attributes): Likewise. Handle status from
_bfd_elf_ppc_merge_fp_attributes.
* elf64-ppc.c (ppc64_elf_merge_private_bfd_data): Handle status
from _bfd_elf_ppc_merge_fp_attributes.
ld/
* testsuite/ld-powerpc/attr-gnu-4-12.d: Update expected output.
* testsuite/ld-powerpc/attr-gnu-4-13.d: Likewise.
* testsuite/ld-powerpc/attr-gnu-4-21.d: Likewise.
* testsuite/ld-powerpc/attr-gnu-4-23.d: Likewise.
* testsuite/ld-powerpc/attr-gnu-4-31.d: Likewise.
* testsuite/ld-powerpc/attr-gnu-4-32.d: Likewise.
* testsuite/ld-powerpc/attr-gnu-8-23.d: Likewise.
* testsuite/ld-powerpc/attr-gnu-12-21.d: Likewise.
Set non_ir_ref_regular to TRUE for symbols forced into the output file
so that they won't be removed by garbage collection with LTO.
PR ld/23309
* ldlang.c (insert_undefined): Set non_ir_ref_regular to TRUE.
* plugin.c (is_visible_from_outside): Don't scan entry_symbol.
* testsuite/ld-plugin/pr23309.c: New file.
* testsuite/ld-plugin/pr23309.d: Likewise.
We need to clear the R_X86_64_converted_reloc_bit bit after setting it
to avoid leaking it out by --emit-relocs.
bfd/
PR ld/23324
* elf64-x86-64.c (elf_x86_64_relocate_section): Clear the
R_X86_64_converted_reloc_bit bit.
ld/
PR ld/23324
* testsuite/ld-x86-64/pr23324.s: New file.
* testsuite/ld-x86-64/pr23324a.d: Likewise.
* testsuite/ld-x86-64/pr23324b.d: Likewise.
BFD's bfd_get_mach () function returns a bfd specific value representing
the architecture of the target which is populated from the Tag_CPU_arch
build attribute value of that target. Among other users of that
interfacem, objdump which uses it to print the architecture version of
the binary being examinated and to decide what instruction is available
if run with "-m arm" via its own mapping from bfd_mach_arm_X values to
feature bits available.
However, both BFD and objdump's most recent known architecture is
Armv5TE. When encountering a newer architecture bfd_get_mach will return
bfd_mach_arm_unknown. This is unfortunate since objdump uses that value
to allow all instructions on all architectures which is already what it
does by default, making the "-m arm" trick useless.
This patch updates BFD and objdump's knowledge of Arm architecture
versions up to the latest Armv8-M Baseline and Mainline, Armv8-R and
Armv8.4-A architectures. Since several architecture versions (eg. 8.X-A)
share the same Tag_CPU_arch build attribute value and
bfd_mach_arm values, the mapping from bfd machine value to feature bits
need to return the most featureful feature bits that would yield the
given bfd machine value otherwise some instruction would not disassemble
under "-m arm" mode. The patch rework that mapping to make this clearer
and simplify writing the mapping rules. In particular, for simplicity
all FPU instructions are allowed in all cases.
Finally, the patch also rewrite the cpu_arch_ver table in GAS to use the
TAG_CPU_ARCH_X macros rather than hardcode their value.
2018-07-02 Thomas Preud'homme <thomas.preudhomme@arm.com>
bfd/
* archures.c (bfd_mach_arm_5TEJ, bfd_mach_arm_6, bfd_mach_arm_6KZ,
bfd_mach_arm_6T2, bfd_mach_arm_6K, bfd_mach_arm_7, bfd_mach_arm_6M,
bfd_mach_arm_6SM, bfd_mach_arm_7EM, bfd_mach_arm_8, bfd_mach_arm_8R,
bfd_mach_arm_8M_BASE, bfd_mach_arm_8M_MAIN): Define.
* bfd-in2.h: Regenerate.
* cpu-arm.c (arch_info_struct): Add entries for above new
bfd_mach_arm values.
* elf32-arm.c (bfd_arm_get_mach_from_attributes): Add Tag_CPU_arch to
bfd_mach_arm mapping logic for pre Armv4 and Armv5TEJ and later
architectures. Force assert failure for any new Tag_CPU_arch value.
gas/
* config/tc-arm.c (cpu_arch_ver): Use symbolic TAG_CPU_ARCH macros
rather than hardcode their values.
ld/
* arm-dis.c (select_arm_features): Fix typo in heading comment. Allow
all FPU features and add mapping from new bfd_mach_arm values to
allowed CPU feature bits.
opcodes/
* testsuite/ld-arm/tls-descrelax-be8.d: Add architecture version in
expected result.
* testsuite/ld-arm/tls-descrelax-v7.d: Likewise.
* testsuite/ld-arm/tls-longplt-lib.d: Likewise.
* testsuite/ld-arm/tls-longplt.d: Likewise.
Binutils documentation uses a mix of spelling for the compound word
"command-line X". According to [1]:
"Sometimes compound words are written separately (nail polish),
sometimes with a hyphen (short-sighted) and sometimes as one word
(eyelashes). Often new compounds are written as two separate words and,
as they become more familiar, they are either connected with a hyphen
(-) or made into one word."
I think command-line X is common enough in our industry that the two
workds command and line should be connected. Since command-line is more
common than commandline, I propose to update binutils documentation to
consistently use "command-line" when this is used as an adjective to a
noun (eg. command-line argument, command-line switch, command-line
option and command-line flag). I've left occurences of "the command
line" as is. I've also left gdb, sim and readline alone and have only
touched public documentation (texi and NEWS files).
[1]
http://dictionary.cambridge.org/grammar/british-grammar/word-formation/compounds
2018-07-02 Thomas Preud'homme <thomas.preudhomme@arm.com>
bfd/
* doc/bfdint.texi: Use command-line consistently when used in a
compount word.
* doc/bfdsumm.texi: Likewise.
binutils/
* NEWS: Use command-line consistently when used in a compount word.
* doc/binutils.texi: Likewise and fix trailing whitespace on same
line.
gas/
* NEWS: Use command-line consistently when used in a compount word.
* doc/as.texi: Likewise.
* doc/c-aarch64.texi: Likewise.
* doc/c-alpha.texi: Likewise.
* doc/c-arc.texi: Likewise.
* doc/c-arm.texi: Likewise.
* doc/c-avr.texi: Likewise.
* doc/c-bfin.texi: Likewise.
* doc/c-cris.texi: Likewise.
* doc/c-epiphany.texi: Likewise.
* doc/c-i386.texi: Likewise.
* doc/c-ia64.texi: Likewise.
* doc/c-lm32.texi: Likewise.
* doc/c-m32r.texi: Likewise.
* doc/c-m68k.texi: Likewise.
* doc/c-mips.texi: Likewise.
* doc/c-mmix.texi: Likewise.
* doc/c-msp430.texi: Likewise.
* doc/c-mt.texi: Likewise.
* doc/c-nios2.texi: Likewise.
* doc/c-ppc.texi: Likewise.
* doc/c-pru.texi: Likewise.
* doc/c-rl78.texi: Likewise.
* doc/c-rx.texi: Likewise.
* doc/c-tic6x.texi: Likewise.
* doc/c-v850.texi: Likewise.
* doc/c-vax.texi: Likewise.
* doc/c-visium.texi: Likewise.
* doc/c-xstormy16.texi: Likewise.
* doc/c-xtensa.texi: Likewise.
* doc/c-z80.texi: Likewise.
* doc/c-z8k.texi: Likewise.
* doc/internals.texi: Likewise.
gprof/
* gprof.texi: Use command-line consistently when used in a compount
word.
ld/
* NEWS: Use command-line consistently when used in a compount word.
* ld.texinfo: Likewise.
* ldint.texinfo: Likewise.
The testcase isn't valid. If it happens to run on your target, you're
lucky.
PR 23169
* testsuite/ld-ifunc/ifunc.exp: Don't run pr23169 tests on
powerpc. Comment.
The addressable signed 32-bit range for n64 MIPS `.got.plt' references
is from 0xffffffff7fff8000 to 0x7fff7fff, due to how the composition of
an LUI and an LD instruction works for address calculation in the 64-bit
addressing mode, such as when CP0.Status.UX=1.
We currently have a range check in `mips_finish_exec_plt', however it is
not correct as it verifies that the `.got.plt' start address referred is
between 0xffffffff80000000 and 0x7fffffff. It is also implemented as an
assertion rather than a proper error message despite that the situation
can be triggered by user input. Additionally there is no check made for
individual `.got.plt' entries referred even though they can be out of
range while the `.got.plt' start address is not.
Fix all these problems and use the correct range for the check, limiting
it to n64 output files, and then issue a proper error message both in
`mips_finish_exec_plt' and in `_bfd_mips_elf_finish_dynamic_symbol',
suggesting the use of the `-Ttext-segment=...' option that will often
work and with the default linker scripts in particular. Add suitable
tests covering boundary cases.
bfd/
PR ld/22966
* elfxx-mips.c (_bfd_mips_elf_finish_dynamic_symbol): Verify the
`.got.plt' entry referred is in range.
(mips_finish_exec_plt): Correct the range check for `.got.plt'
start. Replace the assertion used for that with a proper error
message.
ld/
PR ld/22966
* testsuite/ld-mips-elf/n64-plt-1.dd: New test.
* testsuite/ld-mips-elf/n64-plt-1.gd: New test.
* testsuite/ld-mips-elf/n64-plt-2.ed: New test.
* testsuite/ld-mips-elf/n64-plt-3.ed: New test.
* testsuite/ld-mips-elf/n64-plt-4.dd: New test.
* testsuite/ld-mips-elf/n64-plt-4.gd: New test.
* testsuite/ld-mips-elf/n64-plt-1.ld: New test linker script.
* testsuite/ld-mips-elf/n64-plt-2.ld: New test linker script.
* testsuite/ld-mips-elf/n64-plt-3.ld: New test linker script.
* testsuite/ld-mips-elf/n64-plt-4.ld: New test linker script.
* testsuite/ld-mips-elf/n64-plt.s: New test source.
* testsuite/ld-mips-elf/n64-plt-lib.s: New test source.
* testsuite/ld-mips-elf/mips-elf.exp: Run the new tests.
Remove:
FAIL: DT_TEXTREL map file warning
introduced with commit 63c1f59d66 ("readonly_dynrelocs"), coming from
the lack of a "dynamic relocation against `foo' in read-only section
`.rodata'" warning message produced.
The cause of the failure is that for sections which have dynamic
relocations attached the MIPS backend sets SHF_WRITE, in
`mips_elf_create_dynamic_relocation', yielding:
$ readelf -S textrel.so | grep rodata
[ 8] .rodata PROGBITS 00000254 000254 000004 00 WA 0 0 1
$
so the section is read/write and therefore there is nothing to warn
about.
This arrangement came from commit 7403cb6305 ("PATCH for N32 ABI"),
<https://sourceware.org/ml/binutils/1999-q2/msg00375.html>, i.e. for all
practical purposes it has been there since forever, and therefore it can
be considered a part of the ABI and the test case irrelevant for MIPS
targets.
We don't have a clean way to request UNSUPPORTED result, which would be
the most appropriate here, so just XFAIL the test instead.
ld/
* testsuite/ld-elf/shared.exp: XFAIL DT_TEXTREL map file warning
test for `mips*-*-*'.
When trying to run the update-gnulib.sh script in gdb, I get this:
Error: Wrong automake version (Unescaped left brace in regex is deprecated, passed through in regex; marked by <-- HERE in m/\${ <-- HERE ([^ =:+{}]+)}/ at /opt/automake/1.11.1/bin/automake line 4113.), we need 1.11.1.
Aborting.
Apparently, it's an issue with a regex in automake that triggers a
warning starting with Perl 5.22. It has been fixed in automake 1.15.1.
So I think it's a good excuse to bump the versions of autoconf and
automake used in the gnulib import. And to avoid requiring multiple
builds of autoconf/automake, it was suggested that we bump the required
version of those tools for all binutils-gdb.
For autoconf, the 2.69 version is universally available, so it's an easy
choice. For automake, different distros and distro versions have
different automake versions. But 1.15.1 seems to be the most readily
available as a package. In any case, it's easy to build it from source.
I removed the version checks from AUTOMAKE_OPTIONS and AC_PREREQ,
because I don't think they are useful in our case. They only specify a
lower bound for the acceptable version of automake/autoconf. That's
useful if you let the user choose the version of the tool they want to
use, but want to set a minimum version (because you use a feature that
was introduced in that version). In our case, we force people to use a
specific version anyway. For the autoconf version, we have the check in
config/override.m4 that enforces the version we want. It will be one
less thing to update next time we change autotools version.
I hit a few categories of problems that required some changes. They are
described below along with the chosen solutions.
Problem 1:
configure.ac:17: warning: AM_INIT_AUTOMAKE: two- and three-arguments forms are deprecated. For more info, see:
configure.ac:17: http://www.gnu.org/software/automake/manual/automake.html#Modernize-AM_005fINIT_005fAUTOMAKE-invocation
Solution 1:
Adjust the code based on the example at that URL.
Problem 2 (in zlib/):
Makefile.am: error: required file './INSTALL' not found
Makefile.am: 'automake --add-missing' can install 'INSTALL'
Makefile.am: error: required file './NEWS' not found
Makefile.am: error: required file './AUTHORS' not found
Makefile.am: error: required file './COPYING' not found
Makefile.am: 'automake --add-missing' can install 'COPYING'
Solution 2:
Add the foreign option to AUTOMAKE_OPTIONS.
Problem 3:
doc/Makefile.am:20: error: support for Cygnus-style trees has been removed
Solution 3:
Remove the cygnus options.
Problem 4:
Makefile.am:656: warning: 'INCLUDES' is the old name for 'AM_CPPFLAGS' (or '*_CPPFLAGS')
Solution 4:
Rename "INCLUDES = " to "AM_CPPFLAGS += " (because AM_CPPFLAGS is
already defined earlier).
Problem 5:
doc/Makefile.am:71: warning: suffix '.texinfo' for Texinfo files is discouraged; use '.texi' instead
doc/Makefile.am: warning: Oops!
doc/Makefile.am: It appears this file (or files included by it) are triggering
doc/Makefile.am: an undocumented, soon-to-be-removed automake hack.
doc/Makefile.am: Future automake versions will no longer place in the builddir
doc/Makefile.am: (rather than in the srcdir) the generated '.info' files that
doc/Makefile.am: appear to be cleaned, by e.g. being listed in CLEANFILES or
doc/Makefile.am: DISTCLEANFILES.
doc/Makefile.am: If you want your '.info' files to be placed in the builddir
doc/Makefile.am: rather than in the srcdir, you have to use the shiny new
doc/Makefile.am: 'info-in-builddir' automake option.
Solution 5:
Rename .texinfo files to .texi.
Problem 6:
doc/Makefile.am: warning: Oops!
doc/Makefile.am: It appears this file (or files included by it) are triggering
doc/Makefile.am: an undocumented, soon-to-be-removed automake hack.
doc/Makefile.am: Future automake versions will no longer place in the builddir
doc/Makefile.am: (rather than in the srcdir) the generated '.info' files that
doc/Makefile.am: appear to be cleaned, by e.g. being listed in CLEANFILES or
doc/Makefile.am: DISTCLEANFILES.
doc/Makefile.am: If you want your '.info' files to be placed in the builddir
doc/Makefile.am: rather than in the srcdir, you have to use the shiny new
doc/Makefile.am: 'info-in-builddir' automake option.
Solution 6:
Remove the hack at the bottom of doc/Makefile.am and use
the info-in-builddir automake option.
Problem 7:
doc/Makefile.am:35: error: required file '../texinfo.tex' not found
doc/Makefile.am:35: 'automake --add-missing' can install 'texinfo.tex'
Solution 7:
Use the no-texinfo.tex automake option. We also have one in
texinfo/texinfo.tex, not sure if we should point to that, or move it
(or a newer version of it added with automake --add-missing) to
top-level.
Problem 8:
Makefile.am:131: warning: source file 'config/tc-aarch64.c' is in a subdirectory,
Makefile.am:131: but option 'subdir-objects' is disabled
automake: warning: possible forward-incompatibility.
automake: At least a source file is in a subdirectory, but the 'subdir-objects'
automake: automake option hasn't been enabled. For now, the corresponding output
automake: object file(s) will be placed in the top-level directory. However,
automake: this behaviour will change in future Automake versions: they will
automake: unconditionally cause object files to be placed in the same subdirectory
automake: of the corresponding sources.
automake: You are advised to start using 'subdir-objects' option throughout your
automake: project, to avoid future incompatibilities.
Solution 8:
Use subdir-objects, that means adjusting references to some .o that will now
be in config/.
Problem 9:
configure.ac:375: warning: AC_LANG_CONFTEST: no AC_LANG_SOURCE call detected in body
../../lib/autoconf/lang.m4:193: AC_LANG_CONFTEST is expanded from...
../../lib/autoconf/general.m4:2601: _AC_COMPILE_IFELSE is expanded from...
../../lib/autoconf/general.m4:2617: AC_COMPILE_IFELSE is expanded from...
../../lib/m4sugar/m4sh.m4:639: AS_IF is expanded from...
../../lib/autoconf/general.m4:2042: AC_CACHE_VAL is expanded from...
../../lib/autoconf/general.m4:2063: AC_CACHE_CHECK is expanded from...
configure.ac:375: the top level
Solution 9:
Use AC_LANG_SOURCE, or use proper quoting.
Problem 10 (in intl/):
configure.ac:7: warning: AC_COMPILE_IFELSE was called before AC_USE_SYSTEM_EXTENSIONS
/usr/share/aclocal/threadlib.m4:36: gl_THREADLIB_EARLY_BODY is expanded from...
/usr/share/aclocal/threadlib.m4:29: gl_THREADLIB_EARLY is expanded from...
/usr/share/aclocal/threadlib.m4:318: gl_THREADLIB is expanded from...
/usr/share/aclocal/lock.m4:9: gl_LOCK is expanded from...
/usr/share/aclocal/intl.m4:211: gt_INTL_SUBDIR_CORE is expanded from...
/usr/share/aclocal/intl.m4:25: AM_INTL_SUBDIR is expanded from...
/usr/share/aclocal/gettext.m4:57: AM_GNU_GETTEXT is expanded from...
configure.ac:7: the top level
Solution 10:
Add AC_USE_SYSTEM_EXTENSIONS in configure.ac.
ChangeLog:
* libtool.m4: Use AC_LANG_SOURCE.
* configure.ac: Remove AC_PREREQ, use AC_LANG_SOURCE.
* README-maintainer-mode: Update version requirements.
* ar-lib: New file.
* test-driver: New file.
* configure: Re-generate.
bfd/ChangeLog:
* Makefile.am (AUTOMAKE_OPTIONS): Remove 1.11.
(INCLUDES): Rename to ...
(AM_CPPFLAGS): ... this.
* configure.ac: Remove AC_PREREQ.
* doc/Makefile.am (AUTOMAKE_OPTIONS): Remove 1.9, cygnus, add
info-in-builddir no-texinfo.tex.
(info_TEXINFOS): Rename bfd.texinfo to bfd.texi.
* doc/bfd.texinfo: Rename to ...
* doc/bfd.texi: ... this.
* Makefile.in: Re-generate.
* aclocal.m4: Re-generate.
* config.in: Re-generate.
* configure: Re-generate.
* doc/Makefile.in: Re-generate.
binutils/ChangeLog:
* configure.ac: Remove AC_PREREQ.
* doc/Makefile.am (AUTOMAKE_OPTIONS): Remove cygnus, add
info-in-builddir no-texinfo.tex.
* Makefile.in: Re-generate.
* aclocal.m4: Re-generate.
* config.in: Re-generate.
* configure: Re-generate.
* doc/Makefile.in: Re-generate.
config/ChangeLog:
* override.m4 (_GCC_AUTOCONF_VERSION): Bump from 2.64 to 2.69.
etc/ChangeLog:
* configure.in: Remove AC_PREREQ.
* configure: Re-generate.
gas/ChangeLog:
* Makefile.am (AUTOMAKE_OPTIONS): Remove 1.11, add subdir-objects.
(TARG_CPU_O, OBJ_FORMAT_O, ATOF_TARG_O): Add config/ prefix.
* configure.ac (TARG_CPU_O, OBJ_FORMAT_O, ATOF_TARG_O, emfiles,
extra_objects): Add config/ prefix.
* doc/as.texinfo: Rename to...
* doc/as.texi: ... this.
* doc/Makefile.am: Rename as.texinfo to as.texi throughout.
Remove DISTCLEANFILES hack.
(AUTOMAKE_OPTIONS): Remove 1.8, cygnus, add no-texinfo.tex and
info-in-builddir.
* Makefile.in: Re-generate.
* aclocal.m4: Re-generate.
* config.in: Re-generate.
* configure: Re-generate.
* doc/Makefile.in: Re-generate.
gdb/ChangeLog:
* common/common-defs.h (PACKAGE_NAME, PACKAGE_VERSION,
PACKAGE_STRING, PACKAGE_TARNAME): Undefine.
* configure.ac: Remove AC_PREREQ, add missing quoting.
* gnulib/configure.ac: Modernize usage of
AC_INIT/AM_INIT_AUTOMAKE. Remove AC_PREREQ.
* gnulib/update-gnulib.sh (AUTOCONF_VERSION): Bump to 2.69.
(AUTOMAKE_VERSION): Bump to 1.15.1.
* configure: Re-generate.
* config.in: Re-generate.
* aclocal.m4: Re-generate.
* gnulib/aclocal.m4: Re-generate.
* gnulib/config.in: Re-generate.
* gnulib/configure: Re-generate.
* gnulib/import/Makefile.in: Re-generate.
gdb/gdbserver/ChangeLog:
* configure.ac: Remove AC_PREREQ, add missing quoting.
* configure: Re-generate.
* config.in: Re-generate.
* aclocal.m4: Re-generate.
gdb/testsuite/ChangeLog:
* configure.ac: Remove AC_PREREQ.
* configure: Re-generate.
gold/ChangeLog:
* configure.ac: Remove AC_PREREQ, add missing quoting and usage
of AC_LANG_SOURCE.
* Makefile.in: Re-generate.
* aclocal.m4: Re-generate.
* configure: Re-generate.
* testsuite/Makefile.in: Re-generate.
gprof/ChangeLog:
* configure.ac: Remove AC_PREREQ.
* Makefile.am: Remove DISTCLEANFILES hack.
(AUTOMAKE_OPTIONS): Remove 1.11, add info-in-builddir.
* Makefile.in: Re-generate.
* aclocal.m4: Re-generate.
* configure: Re-generate.
* gconfig.in: Re-generate.
intl/ChangeLog:
* configure.ac: Add AC_USE_SYSTEM_EXTENSIONS, remove AC_PREREQ.
* configure: Re-generate.
* config.h.in: Re-generate.
* aclocal.m4: Re-generate.
ld/ChangeLog:
* configure.ac: Remove AC_PREREQ.
* Makefile.am: Remove DISTCLEANFILES hack, rename ld.texinfo to
ld.texi, ldint.texinfo to ldint.texi throughout.
(AUTOMAKE_OPTIONS): Add info-in-builddir.
* README: Rename ld.texinfo to ld.texi, ldint.texinfo to
ldint.texi throughout.
* gen-doc.texi: Likewise.
* h8-doc.texi: Likewise.
* ld.texinfo: Rename to ...
* ld.texi: ... this.
* ldint.texinfo: Rename to ...
* ldint.texi: ... this.
* Makefile.in: Re-generate.
* aclocal.m4: Re-generate.
* config.in: Re-generate.
* configure: Re-generate.
libdecnumber/ChangeLog:
* configure.ac: Remove AC_PREREQ.
* configure: Re-generate.
* aclocal.m4.
libiberty/ChangeLog:
* configure.ac: Remove AC_PREREQ.
* configure: Re-generate.
* config.in: Re-generate.
opcodes/ChangeLog:
* Makefile.am (AUTOMAKE_OPTIONS): Remove 1.11.
* configure.ac: Remove AC_PREREQ.
* Makefile.in: Re-generate.
* aclocal.m4: Re-generate.
* configure: Re-generate.
readline/ChangeLog.gdb:
* configure: Re-generate.
* examples/rlfe/configure: Re-generate.
sim/ChangeLog:
* All configure.ac: Remove AC_PREREQ.
* All configure: Re-generate.
zlib/ChangeLog.bin-gdb:
* configure.ac: Modernize AC_INIT call, remove AC_PREREQ.
* Makefile.am (AUTOMAKE_OPTIONS): Remove 1.8, cygnus, add
foreign.
* Makefile.in: Re-generate.
* aclocal.m4: Re-generate.
* configure: Re-generate.
Plus a number of fixes to the pr23169 tests.
* testsuite/lib/ld-lib.exp (check_ifunc_available): Pass without
running executable when non-native.
(check_ifunc_attribute_available): Likewise.
* testsuite/ld-ifunc/pr23169a.rd: Remove extraneous lines. Match
st_other strings. Pass when func is an ifunc.
* testsuite/ld-ifunc/pr23169b.rd: Remove extraneous lines. Correct
reloc regexp. Correct match-anything line.
* testsuite/ld-ifunc/pr23169c.rd: Remove extraneous lines. Match
st_other strings.
Many ELF targets arrange to emit a number of section symbols in
.dynsym for use by dynamic relocations. This happens before the
dynamic relocations are output, and the need for those symbols
determined. In most cases they are not needed. A proper analysis of
the need for dynamic section symbols is target specific and tedious,
so this patch just excludes them in the obvious case when no
dynamic relocations are present.
The patch also runs the new pr23161 and pr23162 tests on more targets.
bfd/
* elf-bfd.h (struct elf_link_hash_table): Add "dynamic_relocs".
* elflink.c (_bfd_elf_init_2_index_sections): Comment fix.
(_bfd_elf_add_dynamic_entry): Set "dynamic_relocs".
(_bfd_elf_link_renumber_dynsyms): Exclude all section symbols when
"dynamic_relocs" is not set.
* elfxx-mips.c (count_section_dynsyms): Likewise.
ld/
* testsuite/ld-elf/readelf.exp: Delete DUMP and selection of
variant ver_def.vd.
* testsuite/ld-elf/ver_def-tic6x.vd: Delete.
* testsuite/ld-elf/shared.exp: Run most pr23161 and pr23162 tests for
linux, nacl and gnu targets.
* testsuite/ld-mips-elf/mips-elf.exp: Set base_syms to 1.
* testsuite/ld-elf/pr23161a.rd: Don't check reloc type. Allow any
order of __bss_start, _edata and _end.
* testsuite/ld-elf/pr23161b.rd: Don't check plt and dyn relocs.
Allow and order of __bss_start, _edata and _end.
* testsuite/ld-elf/pr23162.rd: Fail if __bss_start, _edata or _end
relocs are present rather than testing for no relocations.
* testsuite/ld-aarch64/gc-plt-relocs.d,
* testsuite/ld-aarch64/ifunc-1-local.d,
* testsuite/ld-aarch64/ifunc-1.d,
* testsuite/ld-aarch64/ifunc-2-local.d,
* testsuite/ld-aarch64/ifunc-2.d,
* testsuite/ld-aarch64/ifunc-21.d,
* testsuite/ld-aarch64/ifunc-3a.d,
* testsuite/ld-arm/farcall-mixed-lib-v4t.d,
* testsuite/ld-arm/farcall-mixed-lib.d,
* testsuite/ld-arm/gc-hidden-1.d,
* testsuite/ld-arm/tls-gdesc-got.d,
* testsuite/ld-arm/tls-lib-loc.d,
* testsuite/ld-arm/tls-longplt-lib.d,
* testsuite/ld-arm/tls-thumb1.d,
* testsuite/ld-cris/libdso-10.d,
* testsuite/ld-cris/libdso-11.d,
* testsuite/ld-cris/libdso-13b.d,
* testsuite/ld-cris/libdso-14.d,
* testsuite/ld-cris/libdso-15.d,
* testsuite/ld-cris/pic-gc-72.d,
* testsuite/ld-cris/pic-gc-73.d,
* testsuite/ld-cris/tls-gc-71.d,
* testsuite/ld-mips-elf/mips16-pic-4a.nd,
* testsuite/ld-mips-elf/pic-and-nonpic-3a.dd,
* testsuite/ld-mips-elf/pie-n32.d,
* testsuite/ld-mips-elf/pie-n64.d,
* testsuite/ld-mips-elf/pie-o32.d: Update for removed dynamic
section symbols.
See email thread starting here for more details:
https://sourceware.org/ml/binutils/2018-06/msg00036.html
PR 22983
* testsuite/ld-plugin/lto.exp: Use individual tests to check for
the presence of each expected symbol.
* testsuite/ld-plugin/pr22983.1.d: New file.
* testsuite/ld-plugin/pr22983.2.d: New file.
* testsuite/ld-plugin/pr22983.3.d: New file.
* testsuite/ld-plugin/pr22983.4.d: New file.
Adapt the existing regular MIPS lazy binding stub tests for microMIPS
code verification. Check both regular and `--insn32' variants.
Correct indentation issues in the conditional updated.
ld/
* testsuite/ld-mips-elf/stub-dynsym-micromips-1-7fff.d: New
test.
* testsuite/ld-mips-elf/stub-dynsym-micromips-1-8000.d: New
test.
* testsuite/ld-mips-elf/stub-dynsym-micromips-1-fff0.d: New
test.
* testsuite/ld-mips-elf/stub-dynsym-micromips-1-10000.d: New
test.
* testsuite/ld-mips-elf/stub-dynsym-micromips-1-2fe80.d: New
test.
* testsuite/ld-mips-elf/stub-dynsym-micromips-insn32-1-7fff.d:
New test.
* testsuite/ld-mips-elf/stub-dynsym-micromips-insn32-1-8000.d:
New test.
* testsuite/ld-mips-elf/stub-dynsym-micromips-insn32-1-fff0.d:
New test.
* testsuite/ld-mips-elf/stub-dynsym-micromips-insn32-1-10000.d:
New test.
* testsuite/ld-mips-elf/stub-dynsym-micromips-insn32-1-2fe80.d:
New test.
* testsuite/ld-mips-elf/mips-elf.exp: Run the new tests. Fix
indentation.
As from commit 2ebd05b80b ("MIPS/LD: Correct `mips-*-windiss' target
emulation configuration") we have:
EXTRA_EM_FILE=mipself
in `emulparams/elf32mipswindiss.sh', however no corresponding Makefile
`mipself.em' dependency for `eelf32mipswindiss.c'. Add it.
ld/
* Makefile.am (eelf32mipswindiss.c): Add `mipself.em' dependency.
* Makefile.in: Regenerate.
There is no need to put hidden _edata, __bss_start, and _end in dynamic
symbol table in shared libraries.
bfd/
PR ld/23161
* elfxx-x86.c (elf_x86_hide_linker_defined): New function.
(_bfd_x86_elf_link_check_relocs): Use it to hide hidden
__bss_start, _end and _edata in shared libraries.
ld/
PR ld/23161
* testsuite/ld-elf/pr23161d.rd: Remove local _edata, __bss_start,
and _end from dynamic symbol table.
EXECUTABLE_SYMBOLS is supposed to be true to its name, only defining
symbols for the executable.
* emulparams/elf64bmip.sh (EXECUTABLE_SYMBOLS): Don't define.
(OTHER_SYMBOLS): Define this instead.
* emulparams/elf32bmipn32.sh (EXECUTABLE_SYMBOLS): Don't define.
(OTHER_SYMBOLS): Define similarly to elf64bmip.sh.
* emulparams/elf64hppa.sh (EXECUTABLE_SYMBOLS): Don't define.
(OTHER_SYMBOLS): Define instead.
Adding an undefined __c6xabi_DSBT_BASE via an EXTERN in the linker
script isn't ideal, as the symbol is not always needed. This patch
adds the undefined symbol on encountering relocations where it is
implicitly referenced.
bfd/
* elf32-tic6x.c (elf32_tic6x_check_relocs): Reference
__c6xabi_DSBT_BASE explicitly for R_C6000_SBR_* relocs.
ld/
* emulparams/elf32_tic6x_le.sh (EXECUTABLE_SYMBOLS): Don't define.
Best practice is to not mix lseek/read with fseek/fread on the same
underlying file descriptor, as not all stdio implementations will cope.
Since the plugin uses lseek/read while bfd uses fseek/fread this patch
reopens the file for exclusive use by the plugin rather than trying to
restore the file descriptor. That allows the plugin to read the file
after plugin_call_claim_file too.
bfd/
PR 23254
* plugin.c (bfd_plugin_open_input): Allow for possibility of
nested archives. Open file again for plugin.
(try_claim): Don't save and restore file position. Close file
if not claimed.
* sysdep.h (O_BINARY): Define.
ld/
PR 23254
* plugin.c (plugin_call_claim_file): Revert 2016-07-19 patch.
(plugin_object_p): Don't dup file descriptor.
Bump version number to 2.30.52 since _bfd_link_hide_symbol has been added
to bfd_target.
bfd/
* version.m4: Bump version to 2.30.52
* configure: Regenerated.
binutils/
* configure: Regenerated.
gas/
* configure: Regenerated.
gprof/
* configure: Regenerated.
ld/
* configure: Regenerated.
opcodes/
* configure: Regenerated.
bfd_hide_sym_by_version can't be used to check if a versioned symbol is
hidden. This patch adds _bfd_elf_link_hide_sym_by_version to support
both versioned and unversioned symbols by extracting versioned symbol
check from _bfd_elf_link_assign_sym_version.
bfd/
PR ld/23194
* elf-bfd.h (_bfd_elf_link_hide_sym_by_version): New.
* elflink.c (_bfd_elf_link_hide_versioned_symbol): New function.
Extracted from _bfd_elf_link_assign_sym_version.
(_bfd_elf_link_hide_sym_by_version): New function.
(_bfd_elf_link_assign_sym_version): Use
_bfd_elf_link_hide_versioned_symbol.
* elfxx-x86.c (_bfd_x86_elf_link_symbol_references_local): Call
_bfd_elf_link_hide_sym_by_version instead of
bfd_hide_sym_by_version. Don't check unversioned symbol.
ld/
PR ld/23194
* testsuite/ld-i386/pr23194.d: Expect only R_386_GLOB_DAT
against foobar.
* testsuite/ld-i386/pr23194.map: Add foobar.
* testsuite/ld-x86-64/pr23194.map: Likewise.
* testsuite/ld-i386/pr23194.s: Add a common foobar symbol.
* testsuite/ld-x86-64/pr23194.s: Likewise.
* testsuite/ld-x86-64/pr23194.d: Expect only R_X86_64_GLOB_DAT
against foobar.
This patch regenerates a number of files that either were edited by
hand or not regenerated when s12z support was added to binutils.
bfd/
* Makefile.in: Regenerate.
* po/SRC-POTFILES.in: Regenerate.
gas/
* po/POTFILES.in: Regenerate.
ld/
* po/BLD-POTFILES.in: Regenerate.
opcodes/
* Makefile.in: Regenerate.
* po/POTFILES.in: Regenerate.
bfd_hide_sym_by_version can't be used to check if a versioned symbol is
hidden. It has to be synced with _bfd_elf_link_assign_sym_version to
get the correct answer.
bfd/
PR ld/23194
* elfxx-x86.c (_bfd_x86_elf_link_symbol_references_local): Don't
set eh->local_ref to 1 if a symbol is versioned and there is a
version script.
ld/
PR ld/23194
* testsuite/ld-i386/i386.exp: Run pr23194.
* testsuite/ld-x86-64/x86-64.exp: Likewise.
* testsuite/ld-i386/pr23194.d: New file.
* testsuite/ld-i386/pr23194.map: Likewise.
* testsuite/ld-i386/pr23194.s: Likewise.
* testsuite/ld-x86-64/pr23194.d: Likewise.
* testsuite/ld-x86-64/pr23194.map: Likewise.
* testsuite/ld-x86-64/pr23194.s: Likewise.
Since the pr23189 test isn't Linux specific, run it for all targets.
* testsuite/ld-i386/i386.exp: Run pr23189 for all targets.
* testsuite/ld-x86-64/x86-64.exp: Likewise.
bfd * Makefile.am: Add s12z files.
* Makefile.in: Regenerate.
* archures.c: Add bfd_s12z_arch.
* bfd-in.h: Add exports of bfd_putb24 and bfd_putl24.
* bfd-in2.h: Regenerate.
* config.bfd: Add s12z target.
* configure.ac: Add s12z target.
* configure: Regenerate.
* cpu-s12z.c: New file.
* elf32-s12z.c: New file.
* libbfd.c (bfd_putb24): New function.
(bfd_putl24): New function.
* libbfd.h: Regenerate.
* reloc.c: Add s12z relocations.
(bfd_get_reloc_size): Handle size 5 relocs.
* targets.c: Add s12z_elf32_vec.
opcodes * Makefile.am: Add support for s12z architecture.
* configure.ac: Likewise.
* disassemble.c: Likewise.
* disassemble.h: Likewise.
* Makefile.in: Regenerate.
* configure: Regenerate.
* s12z-dis.c: New file.
* s12z.h: New file.
include * elf/s12z.h: New header.
ld * Makefile.am: Add support for s12z architecture.
* configure.tgt: Likewise.
* Makefile.in: Regenerate.
* emulparams/m9s12zelf.sh: New file.
* scripttempl/elfm9s12z.sc: New file.
* testsuite/ld-discard/static.d: Expect to fail for the s12z
target.
* testsuite/ld-elf/endsym.d: Likewise.
* testsuite/ld-elf/merge.d: Likewise.
* testsuite/ld-elf/pr14926.d: Skip for the s12z target.
* testsuite/ld-elf/sec64k.exp: Likewise.
* testsuite/ld-s12z: New directory.
* testsuite/ld-s12z/opr-linking.d: New file.
* testsuite/ld-s12z/opr-linking.s: New file.
* testsuite/ld-s12z/relative-linking.d: New file.
* testsuite/ld-s12z/relative-linking.s: New file.
* testsuite/ld-s12z/z12s.exp: New file.
gas * Makefile.am: Add support for s12z target.
* Makefile.in: Regenerate.
* NEWS: Mention the new support.
* config/tc-s12z.c: New file.
* config/tc-s12z.h: New file.
* configure.tgt: Add s12z support.
* doc/Makefile.am: Likewise.
* doc/Makefile.in: Regenerate.
* doc/all.texi: Add s12z documentation.
* doc/as.textinfo: Likewise.
* doc/c-s12z.texi: New file.
* testsuite/gas/s12z: New directory.
* testsuite/gas/s12z/abs.d: New file.
* testsuite/gas/s12z/abs.s: New file.
* testsuite/gas/s12z/adc-imm.d: New file.
* testsuite/gas/s12z/adc-imm.s: New file.
* testsuite/gas/s12z/adc-opr.d: New file.
* testsuite/gas/s12z/adc-opr.s: New file.
* testsuite/gas/s12z/add-imm.d: New file.
* testsuite/gas/s12z/add-imm.s: New file.
* testsuite/gas/s12z/add-opr.d: New file.
* testsuite/gas/s12z/add-opr.s: New file.
* testsuite/gas/s12z/and-imm.d: New file.
* testsuite/gas/s12z/and-imm.s: New file.
* testsuite/gas/s12z/and-opr.d: New file.
* testsuite/gas/s12z/and-opr.s: New file.
* testsuite/gas/s12z/and-or-cc.d: New file.
* testsuite/gas/s12z/and-or-cc.s: New file.
* testsuite/gas/s12z/bfext-special.d: New file.
* testsuite/gas/s12z/bfext-special.s: New file.
* testsuite/gas/s12z/bfext.d: New file.
* testsuite/gas/s12z/bfext.s: New file.
* testsuite/gas/s12z/bit-manip.d: New file.
* testsuite/gas/s12z/bit-manip.s: New file.
* testsuite/gas/s12z/bit.d: New file.
* testsuite/gas/s12z/bit.s: New file.
* testsuite/gas/s12z/bra-expression-defined.d: New file.
* testsuite/gas/s12z/bra-expression-defined.s: New file.
* testsuite/gas/s12z/bra-expression-undef.d: New file.
* testsuite/gas/s12z/bra-expression-undef.s: New file.
* testsuite/gas/s12z/bra.d: New file.
* testsuite/gas/s12z/bra.s: New file.
* testsuite/gas/s12z/brclr-symbols.d: New file.
* testsuite/gas/s12z/brclr-symbols.s: New file.
* testsuite/gas/s12z/brset-clr-opr-imm-rel.d: New file.
* testsuite/gas/s12z/brset-clr-opr-imm-rel.s: New file.
* testsuite/gas/s12z/brset-clr-opr-reg-rel.d: New file.
* testsuite/gas/s12z/brset-clr-opr-reg-rel.s: New file.
* testsuite/gas/s12z/brset-clr-reg-imm-rel.d: New file.
* testsuite/gas/s12z/brset-clr-reg-imm-rel.s: New file.
* testsuite/gas/s12z/brset-clr-reg-reg-rel.d: New file.
* testsuite/gas/s12z/brset-clr-reg-reg-rel.s: New file.
* testsuite/gas/s12z/clb.d: New file.
* testsuite/gas/s12z/clb.s: New file.
* testsuite/gas/s12z/clr-opr.d: New file.
* testsuite/gas/s12z/clr-opr.s: New file.
* testsuite/gas/s12z/clr.d: New file.
* testsuite/gas/s12z/clr.s: New file.
* testsuite/gas/s12z/cmp-imm.d: New file.
* testsuite/gas/s12z/cmp-imm.s: New file.
* testsuite/gas/s12z/cmp-opr-inc.d: New file.
* testsuite/gas/s12z/cmp-opr-inc.s: New file.
* testsuite/gas/s12z/cmp-opr-rdirect.d: New file.
* testsuite/gas/s12z/cmp-opr-rdirect.s: New file.
* testsuite/gas/s12z/cmp-opr-reg.d: New file.
* testsuite/gas/s12z/cmp-opr-reg.s: New file.
* testsuite/gas/s12z/cmp-opr-rindirect.d: New file.
* testsuite/gas/s12z/cmp-opr-rindirect.s: New file.
* testsuite/gas/s12z/cmp-opr-sxe4.d: New file.
* testsuite/gas/s12z/cmp-opr-sxe4.s: New file.
* testsuite/gas/s12z/cmp-opr-xys.d: New file.
* testsuite/gas/s12z/cmp-opr-xys.s: New file.
* testsuite/gas/s12z/cmp-s-imm.d: New file.
* testsuite/gas/s12z/cmp-s-imm.s: New file.
* testsuite/gas/s12z/cmp-s-opr.d: New file.
* testsuite/gas/s12z/cmp-s-opr.s: New file.
* testsuite/gas/s12z/cmp-xy.d: New file.
* testsuite/gas/s12z/cmp-xy.s: New file.
* testsuite/gas/s12z/com-opr.d: New file.
* testsuite/gas/s12z/com-opr.s: New file.
* testsuite/gas/s12z/complex-shifts.d: New file.
* testsuite/gas/s12z/complex-shifts.s: New file.
* testsuite/gas/s12z/db-tb-cc-opr.d: New file.
* testsuite/gas/s12z/db-tb-cc-opr.s: New file.
* testsuite/gas/s12z/db-tb-cc-reg.d: New file.
* testsuite/gas/s12z/db-tb-cc-reg.s: New file.
* testsuite/gas/s12z/dbCC.d: New file.
* testsuite/gas/s12z/dbCC.s: New file.
* testsuite/gas/s12z/dec-opr.d: New file.
* testsuite/gas/s12z/dec-opr.s: New file.
* testsuite/gas/s12z/dec.d: New file.
* testsuite/gas/s12z/dec.s: New file.
* testsuite/gas/s12z/div.d: New file.
* testsuite/gas/s12z/div.s: New file.
* testsuite/gas/s12z/eor.d: New file.
* testsuite/gas/s12z/eor.s: New file.
* testsuite/gas/s12z/exg.d: New file.
* testsuite/gas/s12z/exg.s: New file.
* testsuite/gas/s12z/ext24-ld-xy.d: New file.
* testsuite/gas/s12z/ext24-ld-xy.s: New file.
* testsuite/gas/s12z/inc-opr.d: New file.
* testsuite/gas/s12z/inc-opr.s: New file.
* testsuite/gas/s12z/inc.d: New file.
* testsuite/gas/s12z/inc.s: New file.
* testsuite/gas/s12z/inh.d: New file.
* testsuite/gas/s12z/inh.s: New file.
* testsuite/gas/s12z/jmp.d: New file.
* testsuite/gas/s12z/jmp.s: New file.
* testsuite/gas/s12z/jsr.d: New file.
* testsuite/gas/s12z/jsr.s: New file.
* testsuite/gas/s12z/ld-imm-page2.d: New file.
* testsuite/gas/s12z/ld-imm-page2.s: New file.
* testsuite/gas/s12z/ld-imm.d: New file.
* testsuite/gas/s12z/ld-imm.s: New file.
* testsuite/gas/s12z/ld-immu18.d: New file.
* testsuite/gas/s12z/ld-immu18.s: New file.
* testsuite/gas/s12z/ld-large-direct.d: New file.
* testsuite/gas/s12z/ld-large-direct.s: New file.
* testsuite/gas/s12z/ld-opr.d: New file.
* testsuite/gas/s12z/ld-opr.s: New file.
* testsuite/gas/s12z/ld-s-opr.d: New file.
* testsuite/gas/s12z/ld-s-opr.s: New file.
* testsuite/gas/s12z/ld-small-direct.d: New file.
* testsuite/gas/s12z/ld-small-direct.s: New file.
* testsuite/gas/s12z/lea-immu18.d: New file.
* testsuite/gas/s12z/lea-immu18.s: New file.
* testsuite/gas/s12z/lea.d: New file.
* testsuite/gas/s12z/lea.s: New file.
* testsuite/gas/s12z/mac.d: New file.
* testsuite/gas/s12z/mac.s: New file.
* testsuite/gas/s12z/min-max.d: New file.
* testsuite/gas/s12z/min-max.s: New file.
* testsuite/gas/s12z/mod.d: New file.
* testsuite/gas/s12z/mod.s: New file.
* testsuite/gas/s12z/mov.d: New file.
* testsuite/gas/s12z/mov.s: New file.
* testsuite/gas/s12z/mul-imm.d: New file.
* testsuite/gas/s12z/mul-imm.s: New file.
* testsuite/gas/s12z/mul-opr-opr.d: New file.
* testsuite/gas/s12z/mul-opr-opr.s: New file.
* testsuite/gas/s12z/mul-opr.d: New file.
* testsuite/gas/s12z/mul-opr.s: New file.
* testsuite/gas/s12z/mul-reg.d: New file.
* testsuite/gas/s12z/mul-reg.s: New file.
* testsuite/gas/s12z/mul.d: New file.
* testsuite/gas/s12z/mul.s: New file.
* testsuite/gas/s12z/neg-opr.d: New file.
* testsuite/gas/s12z/neg-opr.s: New file.
* testsuite/gas/s12z/not-so-simple-shifts.d: New file.
* testsuite/gas/s12z/not-so-simple-shifts.s: New file.
* testsuite/gas/s12z/opr-18u.d: New file.
* testsuite/gas/s12z/opr-18u.s: New file.
* testsuite/gas/s12z/opr-expr.d: New file.
* testsuite/gas/s12z/opr-expr.s: New file.
* testsuite/gas/s12z/opr-ext-18.d: New file.
* testsuite/gas/s12z/opr-ext-18.s: New file.
* testsuite/gas/s12z/opr-idx-24-reg.d: New file.
* testsuite/gas/s12z/opr-idx-24-reg.s: New file.
* testsuite/gas/s12z/opr-idx3-reg.d: New file.
* testsuite/gas/s12z/opr-idx3-reg.s: New file.
* testsuite/gas/s12z/opr-idx3-xysp-24.d: New file.
* testsuite/gas/s12z/opr-idx3-xysp-24.s: New file.
* testsuite/gas/s12z/opr-indirect-expr.d: New file.
* testsuite/gas/s12z/opr-indirect-expr.s: New file.
* testsuite/gas/s12z/opr-symbol.d: New file.
* testsuite/gas/s12z/opr-symbol.s: New file.
* testsuite/gas/s12z/or-imm.d: New file.
* testsuite/gas/s12z/or-imm.s: New file.
* testsuite/gas/s12z/or-opr.d: New file.
* testsuite/gas/s12z/or-opr.s: New file.
* testsuite/gas/s12z/p2-mul.d: New file.
* testsuite/gas/s12z/p2-mul.s: New file.
* testsuite/gas/s12z/page2-inh.d: New file.
* testsuite/gas/s12z/page2-inh.s: New file.
* testsuite/gas/s12z/psh-pul.d: New file.
* testsuite/gas/s12z/psh-pul.s: New file.
* testsuite/gas/s12z/qmul.d: New file.
* testsuite/gas/s12z/qmul.s: New file.
* testsuite/gas/s12z/rotate.d: New file.
* testsuite/gas/s12z/rotate.s: New file.
* testsuite/gas/s12z/s12z.exp: New file.
* testsuite/gas/s12z/sat.d: New file.
* testsuite/gas/s12z/sat.s: New file.
* testsuite/gas/s12z/sbc-imm.d: New file.
* testsuite/gas/s12z/sbc-imm.s: New file.
* testsuite/gas/s12z/sbc-opr.d: New file.
* testsuite/gas/s12z/sbc-opr.s: New file.
* testsuite/gas/s12z/shift.d: New file.
* testsuite/gas/s12z/shift.s: New file.
* testsuite/gas/s12z/simple-shift.d: New file.
* testsuite/gas/s12z/simple-shift.s: New file.
* testsuite/gas/s12z/single-ops.d: New file.
* testsuite/gas/s12z/single-ops.s: New file.
* testsuite/gas/s12z/specd6.d: New file.
* testsuite/gas/s12z/specd6.s: New file.
* testsuite/gas/s12z/st-large-direct.d: New file.
* testsuite/gas/s12z/st-large-direct.s: New file.
* testsuite/gas/s12z/st-opr.d: New file.
* testsuite/gas/s12z/st-opr.s: New file.
* testsuite/gas/s12z/st-s-opr.d: New file.
* testsuite/gas/s12z/st-s-opr.s: New file.
* testsuite/gas/s12z/st-small-direct.d: New file.
* testsuite/gas/s12z/st-small-direct.s: New file.
* testsuite/gas/s12z/st-xy.d: New file.
* testsuite/gas/s12z/st-xy.s: New file.
* testsuite/gas/s12z/sub-imm.d: New file.
* testsuite/gas/s12z/sub-imm.s: New file.
* testsuite/gas/s12z/sub-opr.d: New file.
* testsuite/gas/s12z/sub-opr.s: New file.
* testsuite/gas/s12z/tfr.d: New file.
* testsuite/gas/s12z/tfr.s: New file.
* testsuite/gas/s12z/trap.d: New file.
* testsuite/gas/s12z/trap.s: New file.
binutils* readelf.c: Add support for s12z architecture.
* testsuite/lib/binutils-common.exp (is_elf_format): Excluse s12z
targets.
Since symbols created by HIDDEN and PROVIDE_HIDDEN assignments in
linker script may be marked as defined, but not hidden, we can't
set eh->local_ref to 1 in _bfd_x86_elf_link_symbol_references_local.
Also R_386_GOT32X should be handled as just like R_386_GOT32 when
relocating a section. The input R_386_GOT32X relocations, which
can be relaxed, should have been converted to R_386_PC32, R_386_32
or R_386_GOTOFF.
bfd/
PR ld/23189
* elf32-i386.c (elf_i386_relocate_section): Handle R_386_GOT32X
like R_386_GOT32.
* elfxx-x86.c (_bfd_x86_elf_link_symbol_references_local): Don't
set eh->local_ref to 1 for linker defined symbols.
ld/
PR ld/23189
* testsuite/ld-i386/i386.exp: Run pr23189.
* testsuite/ld-x86-64/x86-64.exp: Likewise.
* testsuite/ld-i386/pr23189.d: New file.
* testsuite/ld-i386/pr23189.s: Likewise.
* testsuite/ld-i386/pr23189.t: Likewise.
* testsuite/ld-x86-64/pr23189.d: Likewise.
* testsuite/ld-x86-64/pr23189.s: Likewise.
* testsuite/ld-x86-64/pr23189.t: Likewise.
gas * write.c (maybe_generate_build_notes): Generate notes on a
per-code-section basis. Skip linkonce sections.
ld * testsuite/ld-elf/notes.exp: New file: Run new test.
* testsuite/ld-elf/note1_1.s: New file: Source file for test.
* testsuite/ld-elf/note1_2.s: New file: Source file for test.
* testsuite/ld-elf/note1.r: New file: Expected readelf output.
If IFUNC symbol is defined in position-dependent executable, we should
change it to the normal function and set its address to its PLT entry
which should be resolved by R_*_IRELATIVE at run-time. All external
references should be resolved to its PLT in executable.
bfd/
PR ld/23169
* elf-ifunc.c (_bfd_elf_allocate_ifunc_dyn_relocs): Don't issue
an error on IFUNC pointer defined in PDE.
* elf32-i386.c (elf_i386_finish_dynamic_symbol): Call
_bfd_x86_elf_link_fixup_ifunc_symbol.
* elf64-x86-64.c (elf_x86_64_finish_dynamic_symbol): Likewise.
* elfxx-x86.c (_bfd_x86_elf_link_fixup_ifunc_symbol): New
function.
* elfxx-x86.h (_bfd_x86_elf_link_fixup_ifunc_symbol): New.
ld/
PR ld/23169
* testsuite/ld-ifunc/ifunc-9-i386.d: New file.
* testsuite/ld-ifunc/ifunc-9-x86-64.d: Likewise.
* testsuite/ld-ifunc/pr23169a.c: Likewise.
* testsuite/ld-ifunc/pr23169a.rd: Likewise.
* testsuite/ld-ifunc/pr23169b.c: Likewise.
* testsuite/ld-ifunc/pr23169b.c: Likewise.
* testsuite/ld-ifunc/pr23169c.rd: Likewise.
* testsuite/ld-ifunc/pr23169c.rd: Likewise.
* testsuite/ld-ifunc/ifunc-9-x86.d: Removed.
* testsuite/ld-ifunc/ifunc.exp: Run PR ld/23169 tests.
__bss_start, _end and _edata are defined by linker to mark regions
within executables and shared libraries. All references within
executables should be locally resolved.
This patch doesn't change how their references within shared libraries
are resolved.
bfd/
PR ld/23162
* elfxx-x86.c (elf_x86_linker_defined): New function.
(_bfd_x86_elf_link_check_relocs): Use it to mark __bss_start,
_end and _edata locally defined within executables.
ld/
PR ld/23162
* testsuite/ld-elf/pr23162.map: New file.
* testsuite/ld-elf/pr23162.rd: Likewise.
* testsuite/ld-elf/pr23162a.c: Likewise.
* testsuite/ld-elf/pr23162b.c: Likewise.
* testsuite/ld-elf/shared.exp: Run PR ld/23162 tests.
Sections may well belong in multiple segments. The testcase in the PR
saw an allocated section being assigned to an ABIFLAGS segment, then
not being assigned to a LOAD segment because it had already been
handled. To fix that particular problem this patch sets and tests
segment_mark only for LOAD segments. I kept the segment_mark test for
LOAD segments because I think there may otherwise be a problem with
zero size sections.
A few other problems showed up with the testcase. Some targets align
.dynamic, resulting in the test failing with "section .dynamic lma
0x800000c0 adjusted to 0x800000cc" and similar messages. I've tried
to handle that with some more hacks to the segment lma, which do the
right thing for the testcase, but may well fail in other situations.
I've also removed the tests of segment lma (p_paddr) and code involved
in deciding that an adjusted segment no longer covers the file or
program headers. Those test can't be correct in the face of objcopy
--change-section-lma. It may be necessary to reinstate the tests but
do them modulo page size, but we'll see how this goes.
PR 20659
bfd/
* elf.c (rewrite_elf_program_header): Use segment_mark only for
PT_LOAD headers. Delete first_matching_lma and first_suggested_lma.
Instead make matching_lma and suggested_lma pointers to the
sections. Align section vma and lma calculated from segment.
Don't clear includes_phdrs or includes_filehdr based on p_paddr
test. Try to handle alignment padding before first section by
adjusting new segment lma down. Adjust PT_PHDR map p_paddr.
ld/
* testsuite/ld-elf/changelma.d,
* testsuite/ld-elf/changelma.lnk,
* testsuite/ld-elf/changelma.s: New test.
My original implementation for LDI32 pseudo does not conform to
the TI ABI. I wrongly documented my TI PRU ELF object files inspection,
which got propagated into my binutils implementation.
Issue was exposed when running the GCC ABI testsuite against TI toolchain.
According to TI ABI, LDI32 must use first LDI instruction to load
the MSB 16bits, and second LDI instruction for the LSB 16bits.
This patch will break binary compatibility with previously released
binutils versions for PRU. Still, I think it is better to fix
binutils to conform to the chip vendor ABI.
bfd * elf32-pru.c (pru_elf32_do_ldi32_relocate): Make LDI32 relocation
conformant to TI ABI.
(pru_elf32_relax_section): Likewise.
(pru_elf_relax_delete_bytes): Fix offsets for new LDI32 code.
* elf32-pru.c (pru_elf32_do_ldi32_relocate): Ignore addend.
(pru_elf32_pmem_relocate): Trap - should not get here.
(pru_elf32_relocate_section): Add support for REL relocations.
(elf_info_to_howto_rel): Enable REL.
(elf_backend_may_use_rel_p): Likewise.
(elf_backend_may_use_rela_p): Likewise.
(elf_backend_default_use_rela_p): Likewise.
gas * config/tc-pru.c (md_apply_fix): Make LDI32 relocation conformant
to TI ABI.
(pru_assemble_arg_i): Likewise.
(output_insn_ldi32): Likewise.
* testsuite/gas/pru/ldi.d: Update test for the now fixed LDI32.
* gas/config/tc-pru.c (pru_assemble_arg_b): Check imm8 operand range.
* gas/testsuite/gas/pru/illegal2.l: New test.
* gas/testsuite/gas/pru/illegal2.s: New test.
* gas/testsuite/gas/pru/pru.exp: Register new illegal2 test.
ld * scripttempl/pru.sc: Add LD sections to allow linking TI
toolchain object files.
* scripttempl/pru.sc: Switch to init_array.
* testsuite/ld-pru/ldi32.d: Update LDI32 test to conform to TI ABI.
* testsuite/ld-pru/norelax_ldi32-data.d: Likewise.
* testsuite/ld-pru/norelax_ldi32-dis.d: Likewise.
* testsuite/ld-pru/relax_ldi32-data.d: Likewise.
* testsuite/ld-pru/relax_ldi32-dis.d: Likewise.
