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Adds two new external authors to etc/update-copyright.py to cover
bfd/ax_tls.m4, and adds gprofng to dirs handled automatically, then
updates copyright messages as follows:
1) Update cgen/utils.scm emitted copyrights.
2) Run "etc/update-copyright.py --this-year" with an extra external
author I haven't committed, 'Kalray SA.', to cover gas testsuite
files (which should have their copyright message removed).
3) Build with --enable-maintainer-mode --enable-cgen-maint=yes.
4) Check out */po/*.pot which we don't update frequently.
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The newer update-copyright.py fixes file encoding too, removing cr/lf
on binutils/bfdtest2.c and ld/testsuite/ld-cygwin/exe-export.exp, and
embedded cr in binutils/testsuite/binutils-all/ar.exp string match.
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The linker merges all the input .sframe sections. When merging, the
linker verifies that all the input .sframe sections have the same
abi/arch.
The linker uses libsframe library to perform key actions on the
.sframe sections - decode, read, and create output data. This
implies buildsystem changes to make and install libsframe before
libbfd.
The linker places the output .sframe section in a new segment of its
own: PT_GNU_SFRAME. A new segment is not added, however, if the
generated .sframe section is empty.
When a section is discarded from the final link, the corresponding
entries in the .sframe section for those functions are also deleted.
The linker sorts the SFrame FDEs on start address by default and sets
the SFRAME_F_FDE_SORTED flag in the .sframe section.
This patch also adds support for generation of SFrame unwind
information for the .plt* sections on x86_64. SFrame unwind info is
generated for IBT enabled PLT, lazy/non-lazy PLT.
The existing linker option --no-ld-generated-unwind-info has been
adapted to include the control of whether .sframe unwind information
will be generated for the linker generated sections like PLT.
Changes to the linker script have been made as necessary.
ChangeLog:
* Makefile.def: Add install dependency on libsframe for libbfd.
* Makefile.in: Regenerated.
* bfd/Makefile.am: Add elf-sframe.c
* bfd/Makefile.in: Regenerated.
* bfd/bfd-in2.h (SEC_INFO_TYPE_SFRAME): Regenerated.
* bfd/configure: Regenerate.
* bfd/configure.ac: Add elf-sframe.lo.
* bfd/elf-bfd.h (struct sframe_func_bfdinfo): New struct.
(struct sframe_dec_info): Likewise.
(struct sframe_enc_info): Likewise.
(struct elf_link_hash_table): New member for encoded .sframe
object.
(struct output_elf_obj_tdata): New member.
(elf_sframe): New access macro.
(_bfd_elf_set_section_sframe): New declaration.
* bfd/elf.c (get_segment_type): Handle new segment
PT_GNU_SFRAME.
(bfd_section_from_phdr): Likewise.
(get_program_header_size): Likewise.
(_bfd_elf_map_sections_to_segments): Likewise.
* bfd/elf64-x86-64.c (elf_x86_64_link_setup_gnu_properties): Add
contents to the .sframe sections or .plt* entries.
* bfd/elflink.c (elf_section_ignore_discarded_relocs): Handle
SEC_INFO_TYPE_SFRAME.
(_bfd_elf_default_action_discarded): Handle .sframe section.
(elf_link_input_bfd): Merge .sframe section.
(bfd_elf_final_link): Write the output .sframe section.
(bfd_elf_discard_info): Handle discarding .sframe section.
* bfd/elfxx-x86.c (_bfd_x86_elf_size_dynamic_sections): Create
.sframe section for .plt and .plt.sec.
(_bfd_x86_elf_finish_dynamic_sections): Handle .sframe from
.plt* sections.
* bfd/elfxx-x86.h (PLT_SFRAME_FDE_START_OFFSET): New
definition.
(SFRAME_PLT0_MAX_NUM_FRES): Likewise.
(SFRAME_PLTN_MAX_NUM_FRES): Likewise.
(struct elf_x86_sframe_plt): New structure.
(struct elf_x86_link_hash_table): New member.
(struct elf_x86_init_table): New members for .sframe
creation.
* bfd/section.c: Add new definition SEC_INFO_TYPE_SFRAME.
* binutils/readelf.c (get_segment_type): Handle new segment
PT_GNU_SFRAME.
* ld/ld.texi: Update documentation for
--no-ld-generated-unwind-info.
* ld/scripttempl/elf.sc: Support .sframe sections.
* ld/Makefile.am (TESTSFRAMELIB): Use it.
(check-DEJAGNU): Likewise.
* ld/Makefile.in: Regenerated.
* ld/configure.ac (TESTSFRAMELIB): Set to the .so or .a like TESTBFDLIB.
* ld/configure: Regenerated.
* bfd/elf-sframe.c: New file.
include/ChangeLog:
* elf/common.h (PT_GNU_SFRAME): New definition.
* elf/internal.h (struct elf_segment_map): Handle new segment
type PT_GNU_SFRAME.
ld/testsuite/ChangeLog:
* ld/testsuite/ld-bootstrap/bootstrap.exp: Add SFRAMELIB.
* ld/testsuite/ld-aarch64/aarch64-elf.exp: Add new test
sframe-simple-1.
* ld/testsuite/ld-aarch64/sframe-bar.s: New file.
* ld/testsuite/ld-aarch64/sframe-foo.s: Likewise.
* ld/testsuite/ld-aarch64/sframe-simple-1.d: Likewise.
* ld/testsuite/ld-sframe/sframe-empty.d: New test.
* ld/testsuite/ld-sframe/sframe-empty.s: New file.
* ld/testsuite/ld-sframe/sframe.exp: New testsuite.
* ld/testsuite/ld-x86-64/sframe-bar.s: New file.
* ld/testsuite/ld-x86-64/sframe-foo.s: Likewise.
* ld/testsuite/ld-x86-64/sframe-simple-1.d: Likewise.
* ld/testsuite/ld-x86-64/sframe-plt-1.d: Likewise.
* ld/testsuite/ld-x86-64/sframe-simple-1.d: Likewise.
* ld/testsuite/ld-x86-64/x86-64.exp: Add new tests -
sframe-simple-1, sframe-plt-1.
* ld/testsuite/lib/ld-lib.exp: Add new proc to check if
assembler supports SFrame section.
* ld/testsuite/ld-sframe/discard.d: New file.
* ld/testsuite/ld-sframe/discard.ld: Likewise.
* ld/testsuite/ld-sframe/discard.s: Likewise.
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The result of running etc/update-copyright.py --this-year, fixing all
the files whose mode is changed by the script, plus a build with
--enable-maintainer-mode --enable-cgen-maint=yes, then checking
out */po/*.pot which we don't update frequently.
The copy of cgen was with commit d1dd5fcc38ead reverted as that commit
breaks building of bfp opcodes files.
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Fixes additional locations not handled in the first patch.
When converting between addresses in ELF headers [octets] and bfd
LMA/VMA [bytes], the number of octets per byte needs to be incorporated.
include/
* bfdlink.h (struct bfd_link_order): Add unit (bytes/octets) to
offset and size members.
* elf/internal.h (struct elf_internal_phdr): Likewise for
p_align member.
(struct elf_segment_map): Likewise for p_paddr and p_size
members
bfd/
* bfd.c (bfd_record_phdr): New local "opb". Fix assignment of
"p_paddr" from "at".
* elfcode.h (bfd_from_remote_memory): Add units to several
parameters. New local "opb". Fix usage of p_align. Fix
calculation of "localbase" from "ehdr_vma" and "p_vaddr". Fix
call of target_read_memory.
* elflink.c (elf_fixup_link_order): Fix scope of "s" local. Fix
calculation of "offset" and "output_offset".
(bfd_elf_final_link): New local "opb". Fix calculation of "size"
from "offset" and fix calculation of "end" from "vma+size". Fix
comparison between "sh_addr" and "vma"/"output_offset".
(bfd_elf_discard_info): Fix calculation of "eh_alignment".
* elf-bfd.h (struct elf_link_hash_table): Add unit to tls_size
member.
* elf.c (_bfd_elf_map_sections_to_segments): Add unit (bytes/
octets) to "wrap_to2 and "phdr_size" locals. Fix calculation of
"wrap_to" value. Add unit (bytes) to phdr_lma variable. Fix
assignment of p_paddr from phdr_lma. Fix comparison between
"lma+size" and "next->lma".
(elf_sort_segments): Fix assignment from p_paddr to lma.
(assign_file_positions_for_load_sections): Add unit (bytes) to
local "align". Fix calculation of local "off_adjust". Fix
calculation of local "filehdr_vaddr".
(assign_file_positions_for_non_load_sections): New local "opb".
Fix calculation of "end" from "p_size". Fix comparison between
"vma+SECTION_SIZE" and "start". Fix calculation of "p_memsz"
from "end" and "p_vaddr".
(rewrite_elf_program_header): Fix comparison between p_vaddr and
vma. Fix assignment to p_paddr from lma. Fix comparison between
p_paddr and lma. Fix assignment to p_paddr from lma.
* merge.c (sec_merge_emit): New local "opb". Convert
"alignment_power" to octets.
(_bfd_add_merge_section): New locals "alignment_power" and
"opb". Fix comparison between "alignment_power" and
"sizeof(align)".
(_bfd_merge_sections): New local "opb". Divide size by opb
before checking align mask.
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When converting between addresses in ELF headers [octets] and bfd
LMA/VMA [bytes], the number of octets per byte needs to be
incorporated.
In ld, the SIZEOF_HEADERS linker script statement must be resolved to
bytes instead of octets.
include/
* elf/internal.h (struct elf_internal_phdr): Add unit (octets)
to several member field comments.
(Elf_Internal_Shdr): likewise.
bfd/
* elf.c (_bfd_elf_make_section_from_shdr): Introduce new temp
opb. Divide Elf_Internal_Shdr::sh_addr by opb when setting
section LMA/VMA.
(_bfd_elf_make_section_from_phdr): Similarly.
(elf_fake_sections): Fix calculation of
Elf_Internal_shdr::sh_addr from section VMA.
(_bfd_elf_map_sections_to_segments): Fix mixup between octets
and bytes.
(assign_file_positions_for_load_sections): Fix calculations of
Elf_Internal_shdr::p_vaddr and p_paddr from section LMA/VMA. Fix
comparison between program header address and section LMA.
(assign_file_positions_for_non_load_sections): Likewise.
(rewrite_elf_program_header): Likewise. Introduce new temp opb.
(IS_CONTAINED_BY_VMA): Add parameter opb.
(IS_CONTAINED_BY_LMA,IS_SECTION_IN_INPUT_SEGMENT,
INCLUDE_SECTION_IN_SEGMENT): Likewise.
(copy_elf_program_header): Update call to ELF_SECTION_IN_SEGMENT.
Fix calculations of p_addr_valid and p_vaddr_offset.
* elflink.c (elf_link_add_object_symbols): Multiply section VMA
with octets per byte when comparing against p_vaddr.
ld/
* ldexp.c (fold_name): Return SIZEOF_HEADERS in bytes.
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This rewrites much of assign_file_positions_for_non_load_sections to
allow objcopy and strip to handle cases like that in PR4499 where
program headers were not in their usual position immediately after the
ELF file header, and PT_LOAD headers were not sorted by paddr.
PR 4499
include/
* elf/internal.h (struct elf_segment_map): Delete header_size.
Add no_sort_lma and idx.
bfd/
* elf-nacl.c (nacl_modify_segment_map): Set no_sort_lma for all
PT_LOAD segments.
* elf32-spu.c (spu_elf_modify_segment_map): Likewise on overlay
PT_LOAD segments.
* elf.c (elf_sort_segments): New function.
(assign_file_positions_except_relocs): Use shortcuts to elfheader
and elf_tdata. Seek to e_phoff not sizeof_ehdr to write program
headers. Move PT_PHDR check..
(assign_file_positions_for_non_load_sections): ..and code setting
PT_PHDR p_vaddr and p_paddr, and code setting __ehdr_start value..
(assign_file_positions_for_load_sections): ..to here. Sort
PT_LOAD headers. Delete header_pad code. Use actual number of
headers rather than allocated in calculating size for program
headers. Don't assume program headers follow ELF file header.
Simplify pt_load_count code. Only set "off" for PT_LOAD or
PT_NOTE in cores.
(rewrite_elf_program_header): Set p_vaddr_offset for segments
that include file and program headers.
(copy_elf_program_header): Likewise, replacing header_size code.
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* elf/internal.h (ELF_SECTION_IN_SEGMENT_1): Exclude non-alloc
sections in GNU_MBIND segments.
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We shouldn't include zero size sections at start of PT_NOTE segment,
similar to PT_DYNAMIC segment.
PR binutils/23694
* include/elf/internal.h (ELF_SECTION_IN_SEGMENT_1): Don't
include zero size sections at start of PT_NOTE segment.
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SHT_NOBITS"
This reverts commit 57c0d77c2ce5e583dab322e05f8291bcbad0ccd3.
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For sections that are not SHT_NOBITS, use sh_offset and p_offset instead of
sh_addr and p_vaddr when calculating if a section fits in a segment. Both
methods are valid when using the GNU linker.
include/
* elf/internal.h (ELF_SECTION_IN_SEGMENT): Don’t check addresses
for non SHT_NOBITS.
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Taking them out showed a bug in the powerpc64 backend with .branch_lt
being removed from output_bfd but not from previously set up segment
section maps. Removing the bfd sections meant their sh_flags (and
practically everything else) remaining zero, ie. not SHF_ALLOC,
triggering complaints about "`.branch_lt' can't be allocated in
segment".
include/elf/
* internal.h (ELF_SECTION_IN_SEGMENT_1): Ensure PT_LOAD and
similar segments only contain alloc sections.
ld/
* emultempl/ppc64elf.em (gld${EMULATION_NAME}_after_allocation):
Call gld${EMULATION_NAME}_map_segments regardless of need_laying_out.
ld/testsuite/
* ld-powerpc/tocnovar.d: Revert last change.
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* external.h (Elf32_External_Chdr): New.
(Elf64_External_Chdr): Likewise.
* internal.h (Elf_Internal_Chdr): Likewise.
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* internal.h (elf_internal_sym): Add st_target_internal.
* arm.h (arm_st_branch_type): New enum.
(ARM_SYM_BRANCH_TYPE): New macro.
bfd/
* elf-bfd.h (elf_link_hash_entry): Add target_internal.
* elf.c (swap_out_syms): Set st_target_internal for each
Elf_Internal_Sym.
* elfcode.h (elf_swap_symbol_in): Likewise.
* elf32-i370.c (i370_elf_finish_dynamic_sections): Likewise.
* elf32-sh-symbian.c (sh_symbian_relocate_section): Likewise.
* elf64-sparc.c (elf64_sparc_output_arch_syms): Likewise.
* elfxx-sparc.c (_bfd_sparc_elf_size_dynamic_sections): Likewise.
* elflink.c (elf_link_output_extsym): Likewise.
(bfd_elf_final_link): Likewise.
(elf_link_add_object_symbols): Copy st_target_internal
to the hash table if we see a definition.
(_bfd_elf_copy_link_hash_symbol_type): Copy target_internal.
* elf32-arm.c (elf32_arm_stub_hash_entry): Replace st_type with
a branch_type field.
(a8_erratum_fix, a8_erratum_reloc): Likewise.
(arm_type_of_stub): Replace actual_st_type with an
actual_branch_type parameter.
(arm_build_one_stub): Use branch types rather than st_types to
determine the type of branch.
(cortex_a8_erratum_scan): Likewise.
(elf32_arm_size_stubs): Likewise.
(bfd_elf32_arm_process_before_allocation): Likewise.
(allocate_dynrelocs_for_symbol): Likewise.
(elf32_arm_finish_dynamic_sections): Likewise.
(elf32_arm_final_link_relocate): Replace sym_flags parameter with
a branch_type parameter.
(elf32_arm_relocate_section): Update call accordingly.
(elf32_arm_adjust_dynamic_symbol): Don't check STT_ARM_TFUNC.
(elf32_arm_output_map_sym): Initialize st_target_internal.
(elf32_arm_output_stub_sym): Likewise.
(elf32_arm_symbol_processing): Delete.
(elf32_arm_swap_symbol_in): Convert STT_ARM_TFUNCs into STT_FUNCs.
Use st_target_internal to record the branch type.
(elf32_arm_swap_symbol_out): Use st_target_internal to test for
Thumb functions.
(elf32_arm_is_function_type): Delete.
(elf_backend_symbol_processing): Likewise.
(elf_backend_is_function_type): Likewise.
gas/
* config/tc-arm.c (arm_adjust_symtab): Set the branch type
for Thumb symbols.
ld/
* emultempl/armelf.em (gld${EMULATION_NAME}_finish): Check
eh->target_internal.
opcodes/
* arm-dis.c (get_sym_code_type): Don't check for STT_ARM_TFUNC.
Use branch types instead.
(print_insn): Likewise.
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* internal.h (ELF_SECTION_IN_SEGMENT_1): Don't match zero size
sections at start or end of PT_DYNAMIC.
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* internal.h (ELF_TBSS_SPECIAL): New macro, extracted from..
(ELF_SECTION_SIZE): ..here.
(ELF_SECTION_IN_SEGMENT_1): Add "strict" arg.
(ELF_SECTION_IN_SEGMENT_STRICT): New macro.
bfd/
* elf.c (assign_file_positions_for_load_sections): Check that
zero size sections are allocated in segments too.
(assign_file_positions_for_non_load_sections): Warn if zero
size alloc sections are found here.
(copy_elf_program_header): Don't drop zero size sections from
segment map.
(copy_private_bfd_data): Check for changes in zero size sections.
binutils/
* readelf.c (process_program_headers): Don't ignore all zero size
sections.
ld/testsuite/
* ld-powerpc/tlsexe.r: Update.
* ld-powerpc/tlsexetoc.r: Update.
* ld-powerpc/tlsso.r: Update.
* ld-powerpc/tlstocso.r: Update.
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* internal.h (ELF_SECTION_SIZE): Protect macro args with parentheses.
Invert logic to clarify test for .tbss.
(ELF_IS_SECTION_IN_SEGMENT): Rename to..
(ELF_SECTION_IN_SEGMENT_1): ..this. Add check_vma param. Protect
macro args with parentheses.
(ELF_SECTION_IN_SEGMENT): Define.
(ELF_IS_SECTION_IN_SEGMENT_FILE): Delete.
(ELF_IS_SECTION_IN_SEGMENT_MEMORY): Delete.
bfd/
* elf.c: Replace use of ELF_IS_SECTION_IN_SEGMENT and
ELF_IS_SECTION_IN_SEGMENT_FILE with ELF_SECTION_IN_SEGMENT
throughout file.
(assign_file_positions_for_load_sections): Modify section in
segment warning to ignore overlay vmas.
* elf32-spu.c (spu_elf_object_p): Replace use of
ELF_IS_SECTION_IN_SEGMENT_MEMORY with ELF_SECTION_IN_SEGMENT.
binutils/
* readelf.c (process_program_headers): Replace use of
ELF_IS_SECTION_IN_SEGMENT_MEMORY with ELF_SECTION_IN_SEGMENT.
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cannot contain any sections.
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* elf.c (assign_file_positions_for_load_sections): Use header_size
to avoid moving the load address of file headers.
(assign_file_positions_for_load_sections): Set header_size for
segments containing the file header.
include/elf/
* internal.h (struct elf_segment_map): Add header_size field.
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* internal.h (Elf_Internal_Shdr): Change sh_link and sh_info from
unsigned long to unsigned int. Change sh_addralign to bfd_vma.
Order struct as for external version.
bfd/
* elf.c (_bfd_elf_make_section_from_shdr): Remove unnecessary cast.
(_bfd_elf_assign_file_position_for_section): Simplify align.
(_bfd_elf_init_reloc_shdr): Ensure shift expression wide enough
for sh_addralign.
(elf_fake_sections, swap_out_syms): Likewise.
* elflink.c (bfd_elf_final_link): Likewise.
binutils/
* readelf.c: Use %u throughout when printing sh_link or sh_info,
%lu when printing sh_addralign.
(process_version_sections): Use identical formats when printing
all offset and sh_link fields.
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PR 5900
* common.h (SHN_BAD): Delete.
(SHN_LORESERVE .. SHN_HIRESERVE): Move to..
* external.h: ..here.
* internal.h (SHN_LORESERVE, SHN_HIRESERVE): Define.
(SHN_LOPROC, SHN_HIPROC, SHN_LOOS, SHN_HIOS): Define.
(SHN_ABS, SHN_COMMON, SHN_XINDEX, SHN_BAD): Define.
bfd/
PR 5900
* elf-bfd.h: Include elf/internal.h after elf/external.h.
* elfcode.h (elf_swap_symbol_in): Map reserved shndx range.
(elf_swap_symbol_out): Adjust SHN_XINDEX test.
(elf_swap_ehdr_out): Mask SHN_LORESERVE and SHN_XINDEX to values
seen in external structs.
(valid_section_index_p): Delete.
(elf_object_p): Don't increment section numbers over reserved range.
Simplify test for valid sh_link, sh_info and e_shstrndx fields.
(elf_write_shdrs_and_ehdr): Mask SHN_LORESERVE and SHN_XINDEX to values
seen in external structs. Don't increment section numbers over
reserved range.
* elf.c (bfd_elf_sym_name): Remove redundant tests on st_shndx.
(bfd_section_from_shdr): Likewise.
(group_signature): Range check before accessing elf_elfsections.
(_bfd_elf_setup_sections): Likewise.
(bfd_section_from_shdr): Likewise.
(bfd_section_from_shdr): Don't increment section number over
reserved sections.
(assign_file_positions_for_non_load_sections): Likewise.
(assign_file_positions_except_relocs): Likewise.
(_bfd_elf_write_object_contents): Likewise.
(assign_section_numbers): Likewise. Adjust for changed SHN_*.
(prep_headers): Delete unused variable.
* elflink.c (bfd_elf_link_record_local_dynamic_symbol): Adjust
for changed SHN_* values.
(check_dynsym, elf_link_input_bfd): Likewise.
(bfd_elf_final_link): Likewise. Don't skip over reserved section
range.
(elf_fixup_link_order): Check that sh_link field is valid.
* elf-hppa.h (elf_hppa_add_symbol_hook): Make "index" unsigned.
* elf32-arm.c (elf32_arm_gc_mark_extra_sections): Range check before
accesssing elf_elfsections.
* elf32-avr.c (elf32_avr_size_stubs): Likewise.
* elf32-hppa.c (elf32_hppa_size_stubs): Likewise.
* elf32-m68hc1x.c (elf32_m68hc11_size_stubs): Likewise.
* elf64-hppa.c (elf64_hppa_check_relocs): Adjust for changed
SHN_* defines. Test for SHN_BAD return from
_bfd_elf_section_from_bfd_section
binutils/
PR 5900
* readelf.c (SECTION_HEADER_INDEX, SECTION_HEADER_NUM): Delete.
Remove use throughout file.
(SECTION_HEADER): Likewise.
(dump_relocations): Don't adjust st_shndx for reserved range.
(process_file_header): Mask SHN_XINDEX to values seen in external
elf structs. Simplify valid section index tests.
(get_32bit_elf_symbols, get_64bit_elf_symbols): Mask SHN_XINDEX.
Map reserved st_shndx to internal form.
(process_section_groups): Test that group symbol st_shndx is in
range, not just non-zero. Delete reserved range check.
(get_symbol_index_type): Mask "type" to 16 bits when printing PRC,
OS or RSV.
gdb/
PR 5900
* elfread.c (elf_symtab_read): Make shndx an unsigned int.
* mipsread.c: Include elf/internal.h.
(read_alphacoff_dynamic_symtab): Map external reserved sym_shndx
to internal range.
ld/testsuite/
PR 5900
* ld-elf/sec64k.exp: Update.
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segments at the end of memory.
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2007-09-17 H.J. Lu <hongjiu.lu@intel.com>
PR binutils/3281
PR binutils/5037
* elf-bfd.h (elf_obj_tdata): Remove relro.
* elf.c (get_program_header_size): Check info->relro instead
of elf_tdata (abfd)->relro.
(_bfd_elf_map_sections_to_segments): Likewise.
(assign_file_positions_for_load_sections): Don't set
PT_GNU_RELRO segment alignment here.
(assign_file_positions_for_non_load_sections): Properly set up
PT_GNU_RELRO segment for copying executable/shared library.
(rewrite_elf_program_header): Remove PT_GNU_RELRO segment.
(copy_elf_program_header): Set p_size and p_size_valid fields for
PT_GNU_RELRO segment.
include/elf/
2007-09-17 H.J. Lu <hongjiu.lu@intel.com>
PR binutils/3281
PR binutils/5037
* internal.h (elf_segment_map): Add p_size and p_size_valid.
(ELF_IS_SECTION_IN_SEGMENT): Allow SHF_TLS sections in
PT_GNU_RELRO segments.
ld/
2007-09-17 H.J. Lu <hongjiu.lu@intel.com>
PR binutils/3281
PR binutils/5037
* ldexp.h (ldexp_control): Add relro, relro_start_stat and
relro_end_stat.
* ldexp.c (fold_binary): Set expld.dataseg.relro to
exp_dataseg_relro_start or exp_dataseg_relro_end when
seeing DATA_SEGMENT_ALIGN or DATA_SEGMENT_RELRO_END,
respectively.
* ldlang.c (lang_size_sections_1): Properly set
expld.dataseg.relro_start_stat and
expld.dataseg.relro_end_stat.
(find_relro_section_callback): New function.
(lang_find_relro_sections_1): Likewise.
(lang_find_relro_sections): Likewise.
(lang_process): Call lang_find_relro_sections for
non-relocatable link.
ld/testsuite/
2007-09-17 H.J. Lu <hongjiu.lu@intel.com>
PR binutils/3281
PR binutils/5037
* ld-elf/binutils.exp: Update "-z relro" tests to use relro1.s.
Add "-z relro" tests with relro2.s. Add "-z relro" tests with
TLS for objcopy.
* ld-elf/relro1.s: New file.
* ld-elf/relro2.s: Likewise.
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* internal.h (ELF_IS_SECTION_IN_SEGMENT): Check both file offset
and vma for appropriate sections.
bfd/
* elf.c (assign_file_positions_for_load_sections): Set sh_offset
here. Set sh_type to SHT_NOBITS if we won't be allocating
file space. Don't bump p_memsz for non-alloc sections. Adjust
section-in-segment check.
(assign_file_positions_for_non_load_sections): Don't set sh_offset
here for sections that have already been handled above.
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* elf.c (assign_file_positions_for_load_sections): Adjust p_vaddr
by p_vaddr_offset. Copy alignment & use if it is valid.
(rewrite_elf_program_headers): Cope with leading padding in a
segment that does not contain file or program headers.
(copy_elf_program_header): Likewise.
include/elf/
* internal.h (struct elf_segment_map): Add p_vaddr_offset field.
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2006-05-31 H.J. Lu <hongjiu.lu@intel.com>
* internal.h (ELF_SECTION_SIZE): New.
(ELF_IS_SECTION_IN_SEGMENT): Likewise.
(ELF_IS_SECTION_IN_SEGMENT_FILE): Updated.
(ELF_IS_SECTION_IN_SEGMENT_MEMORY): Likewise.
ld/testsuite/
2006-05-31 H.J. Lu <hongjiu.lu@intel.com>
* ld-elf/binutils.exp: Make it Linux only.
(strip_test): Renamed to binutils_test. Check for unsupported
options.
Add more tests.
* ld-elf/commonpage1.d: Make it Linux only.
* ld-elf/maxpage1.d: Likewise.
* ld-elf/maxpage1.s: Add main, start and __start.
* ld-elf/maxpage2.d: New file.
* ld-elf/tbss1.s: Likewise.
* ld-elf/tbss2.s: Likewise.
* ld-elf/tdata1.s: Likewise.
* ld-elf/tdata2.s: Likewise.
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* elf.c (assign_file_positions_for_load_sections): Retrieve
maxpagesize from m->p_align if it is valid. Set p_vaddr,
p_paddr and p_align earlier. Revert 2006-05-19 change to p_align.
(copy_elf_program_header): Copy p_align. Set p_align_valid.
include/elf/
* internal.h (elf_segment_map): Add p_align and p_align_valid.
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2006-02-10 H.J. Lu <hongjiu.lu@intel.com>
PR binutils/2258
* elf.c (copy_private_bfd_data): Renamed to ...
(rewrite_elf_program_header): This.
(copy_elf_program_header): New function.
(copy_private_bfd_data): Likewise.
binutils/
2006-02-10 H.J. Lu <hongjiu.lu@intel.com>
PR binutils/2258
* readelf.c (process_program_headers): Use
ELF_IS_SECTION_IN_SEGMENT_MEMORY.
include/elf/
2006-02-10 H.J. Lu <hongjiu.lu@intel.com>
PR binutils/2258
* internal.h (ELF_IS_SECTION_IN_SEGMENT_FILE): New.
(ELF_IS_SECTION_IN_SEGMENT_MEMORY): Likewise.
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* common.h (NT_AUXV, AT_*): New macros.
* external.h (Elf32_External_Auxv, Elf64_External_Auxv): New types.
* internal.h (Elf_Internal_Auxv): New type.
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* internal.h (elf32_internal_ehdr, Elf32_Internal_Ehdr,
elf64_internal_ehdr, Elf64_Internal_Ehdr, elf32_internal_phdr,
Elf32_Internal_Phdr, elf64_internal_phdr, Elf64_Internal_Phdr,
elf32_internal_shdr, Elf32_Internal_Shdr, elf64_internal_shdr,
Elf64_Internal_Shdr, elf32_internal_sym, elf64_internal_sym,
Elf32_Internal_Sym, Elf64_Internal_Sym, Elf32_Internal_Note,
elf32_internal_note, elf32_internal_rel, Elf32_Internal_Rel,
elf64_internal_rel, Elf64_Internal_Rel, elf32_internal_rela,
elf64_internal_rela, Elf32_Internal_Rela, Elf64_Internal_Rela,
elf32_internal_dyn, elf64_internal_dyn, Elf32_Internal_Dyn,
Elf64_Internal_Dyn, elf32_internal_verdef, elf64_internal_verdef,
elf32_internal_verdaux, elf64_internal_verdaux, elf32_internal_verneed,
elf64_internal_verneed, elf32_internal_vernaux, elf64_internal_vernaux,
elf32_internal_versym, elf64_internal_versym, Elf32_Internal_Verdef,
Elf64_Internal_Verdef, Elf32_Internal_Verdaux, Elf64_Internal_Verdaux,
Elf32_Internal_Verneed, Elf64_Internal_Verneed, Elf32_Internal_Vernaux,
Elf64_Internal_Vernaux, Elf32_Internal_Versym, Elf64_Internal_Versym,
Elf32_Internal_Syminfo, Elf64_Internal_Syminfo): Delete.
(Elf_Internal_Rel): Delete.
bfd/ChangeLog
* elf-bfd.h: Replace occurrences of Elf32_Internal_* and
Elf64_Internal_* with Elf_Internal_*. Replace Elf_Internal_Rel
with Elf_Internal_Rela.
* elf-hppa.h, elf-m10200.c, elf-m10300.c, elf32-arc.c, elf32-arm.h,
elf32-avr.c, elf32-cris.c, elf32-d10v.c, elf32-d30v.c, elf32-dlx.c,
elf32-fr30.c, elf32-frv.c, elf32-gen.c, elf32-h8300.c, elf32-hppa.c,
elf32-i370.c, elf32-i386.c, elf32-i860.c, elf32-i960.c, elf32-ip2k.c,
elf32-m32r.c, elf32-m68hc11.c, elf32-m68hc12.c, elf32-m68k.c,
elf32-mcore.c, elf32-mips.c, elf32-openrisc.c, elf32-or32.c,
elf32-ppc.c, elf32-s390.c, elf32-sh.c, elf32-v850.c, elf32-vax.c,
elf32-xstormy16.c, elf64-alpha.c, elf64-gen.c, elf64-hppa.c,
elf64-mips.c, elf64-mmix.c, elf64-ppc.c, elf64-s390.c, elf64-sh64.c,
elf64-sparc.c, elf64-x86-64.c, elfarm-nabi.c, elfarm-oabi.c,
elfcode.h, elflink.h, elfn32-mips.c, elfxx-ia64.c, elfxx-mips.c: Ditto.
* elf-hppa.h (elf_hppa_internal_shdr): Delete. Use Elf_Internal_Shdr
throughout instead.
* elf.c (_bfd_elf_no_info_to_howto_rel): Delete.
* elfcode.h (elf_swap_reloca_in): Pass source operand as a bfd_byte *.
Remove INLINE keyword.
(elf_swap_reloc_in): Likewise. Also clear r_addend.
(elf_swap_reloc_out, elf_swap_reloca_out): Pass destination operand
as a bfd_byte *.
(elf_write_relocs): Consolidate REL and RELA code.
(elf_slurp_reloc_table_from_section): Simplify REL code.
(NAME(_bfd_elf,size_info)): Populate reloc swap entries.
* elf-bfd.h (MAX_INT_RELS_PER_EXT_REL): Define.
* elflink.h (elf_link_read_relocs_from_section): Consolidate REL and
RELA code.
(elf_link_adjust_relocs): Likewise. Don't malloc space for temp
reloc array, use a fixed size of MAX_INT_RELS_PER_EXT_REL.
(elf_link_output_relocs): Likewise.
(elf_reloc_link_order): Likewise.
(elf_finish_pointer_linker_section): Likewise.
(struct elf_link_sort_rela): Remove union.
(elf_link_sort_cmp1): Update to suit.
(elf_link_sort_cmp2): Here too.
(elf_link_sort_relocs): Consolidate REL and RELA code. Fix memory
over-allocation for int_rels_per_ext_rel != 1 case.
* elf32-arm.h: Update all bfd_elf32_swap_reloc_out calls.
* elf32-i386.c: Likewise.
* elf32-cris.c: Likewise for bfd_elf32_swap_reloca_out.
* elf32-hppa.c, elf32-i370.c, elf32-m68k.c, elf32-ppc.c, elf32-s390.c,
elf32-sh.c, elf32-vax.c, elfxx-mips.c: Likewise.
* elf64-alpha.c: Likewise for bfd_elf64_swap_reloca_out.
* elf64-hppa.c, elf64-mips.c, elf64-ppc.c, elf64-s390.c, elf64-sh64.c,
elf64-sparc.c, elf64-x86-64.c: Likewise.
* elfxx-ia64.c: Likewise for bfd_elfNN_swap_reloca_out.
* elfxx-mips.c (sort_dynamic_relocs): Likewise for
bfd_elf32_swap_reloc_in.
* elf32-arm.h: Update elf32_arm_info_to_howto calls.
* elf32-mips.c: Likewise for mips_info_to_howto_rel.
(mips_elf64_swap_reloc_in): Zero r_addend.
(mips_elf64_be_swap_reloc_in): Likewise.
(mips_elf64_slurp_one_reloc_table): Simplify.
* elf64-alpha.c (alpha_elf_size_info): Populate reloc swap entries.
* elf64-hppa.c (hppa64_elf_size_info): Likewise.
* elf64-sparc.c (sparc64_elf_size_info): Likewise.
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include/elf/ChangeLog
* external.h (Elf_External_Sym_Shndx): Declare.
* internal.h (struct elf_internal_sym <st_shndx>): Make it an
unsigned int.
* common.h (SHN_BAD): Define.
bfd/ChangeLog
* configure.in: Bump bfd version.
* configure: Regenerate.
* elf-bfd.h (elf_size_info <swap_symbol_out>): Add shndx param.
(bfd_elf32_swap_symbol_in): Likewise.
(bfd_elf32_swap_symbol_out): Likewise.
(bfd_elf64_swap_symbol_in): Likewise.
(bfd_elf64_swap_symbol_out): Likewise.
(elf_reloc_cookie): Add locsym_shndx field. Make locsyms a PTR.
(elf_obj_tdata): Add num_elf_sections, symtab_shndx_hdr and
symtab_shndx_section.
(elf_numsections): Define.
(elf_symtab_shndx): Define.
* elf.c (setup_group): Use elf_numsections rather than header e_shnum.
(bfd_elf_find_section): Likewise.
(bfd_section_from_elf_index): Likewise.
(bfd_section_from_shdr): Likewise. Handle SHT_SYMTAB_SHNDX.
(bfd_section_from_r_symndx): Read symbol shndx extension, and
translate st_shndx for > SHN_HIRESERVE.
(assign_section_numbers): Skip reserved sections. Assign
symtab_shndx_section and elf_numsections. Exclude reserved
sections from e_shnum. Set up symtab_shndx_hdr.
(_bfd_elf_compute_section_file_positions): Handle symtab_shndx_hdr.
(map_sections_to_segments): Don't map eh_frame_hdr unless required.
(assign_file_positions_except_relocs): Use elf_numsections rather
than header e_shnum. Skip reserved sections and symtab_shndx_section.
(prep_headers): Set name for symtab_shndx_hdr.
(_bfd_elf_assign_file_positions_for_relocs): Use elf_numsections.
(_bfd_elf_write_object_contents): Likewise. Skip reserved sections.
(_bfd_elf_section_from_bfd_section): Check bfd_{abs,com,und}_section
first. Use elf_section_data if available. Use elf_numsections.
Start scan at index 1.
(copy_private_bfd_data ): Comment fixes.
(MAP_ONESYMTAB): Define above SHN_HIOS.
(MAP_DYNSYMTAB): Likewise.
(MAP_STRTAB): Likewise.
(MAP_SHSTRTAB): Likewise.
(MAP_SYM_SHNDX): New define.
(_bfd_elf_copy_private_symbol_data): Handle symtab_shndx_section.
(swap_out_syms): Swap out SHT_SYMTAB_SHNDX section too.
* elfcode.h (elf_swap_symbol_in): Add shndx param, and handle shndx
extension.
(elf_swap_symbol_out): Likewise.
(elf_object_p): Set elf_numsections, and use instead of e_shnum.
Initialialise reserved elf_elfsections to point at shdr[0]. Remove
redundant bfd_release calls.
(elf_slurp_symbol_table): Read symbol shndx extension, and use with
elf_swap_symbol_in. Translate st_shndx for > SHN_HIRESERVE too.
* elflink.h (elf_link_is_defined_archive_symbol): Read symbol shndx
extension, and use with elf_swap_symbol_in.
(elf_link_record_local_dynamic_symbol): Likewise.
(elf_link_add_object_symbols): Likewise. Also translate st_shndx
for elf sections > SHN_HIRESERVE.
(NAME(bfd_elf,size_dynamic_sections)): Adjust elf_swap_symbol_out
call.
(struct elf_final_link_info): Add locsym_shndx and symshndxbuf.
(elf_bfd_final_link): Allocate the above, and tidy code allocating
other buffers. Use elf_numsections instead of e_shnum. Adjust
elf_swap_symbol_out calls.
(elf_link_output_sym): Swap out symbol shndx extension too.
(elf_link_flush_output_syms): And flush them to disk.
(elf_link_output_extsym): Use SHN_BAD. Adjust elf_swap_symbol_out
calls.
(elf_gc_mark): Read symbol shndx extension, and use with
elf_swap_symbol_in.
(elf_link_input_bfd): Likewise, Translate st_shndx for elf sections
> SHN_HIRESERVE too. Use SHN_BAD.
(elf_reloc_symbol_deleted_p): Use symbol shndx extensions with
elf_swap_symbol_in. Translate st_shndx > SHN_HIRESERVE too.
(elf_bfd_discard_info): Read symbol shndx extension. Don't attempt
to continue after a bfd error.
* elf-m10200.c (mn10200_elf_relax_section): Only read local syms.
Stash them immediately to symtab_hdr->contents rather than later
in multiple places. Clean up afterwards. Read symbol shndx
extension, and use with swap_symbol_in. Translate SHN_UNDEF,
SHN_ABS, SHN_COMMON and elf sections > SHN_HIRESERVE to bfd
sections too. Remove dead code.
(mn10200_elf_relax_delete_bytes): Use symbol shndx extension
when swapping in symbols. Tidy code adjusting global syms.
Don't swap in global syms.
(mn10200_elf_symbol_address_p): Likewise. Remove extsyms param.
(mn10200_elf_get_relocated_section_contents): Read symbol shndx
extension, and use with swap_symbol_in. Rename "size" -> "amt"
to maximize code in common with other files. Translate st_shndx
for > SHN_HIRESERVE too. Remove dead code.
* elf-m10300.c (mn10300_elf_relax_section): Only read local syms.
Stash them immediately to symtab_hdr->contents rather than later
in multiple places. Clean up afterwards. Read symbol shndx
extension, and use with swap_symbol_in. Remove dead code.
(mn10300_elf_relax_delete_bytes): As for elf-m10200.c.
(mn10300_elf_symbol_address_p): Likewise.
(mn10300_elf_get_relocated_section_contents): Likewise.
* elf32-h8300.c (elf32_h8_relax_section): As for elf-m10300.c.
(elf32_h8_relax_delete_bytes): Likewise.
(elf32_h8_symbol_address_p): Likewise.
(elf32_h8_get_relocated_section_contents): Likewise.
* elf32-hppa.c (elf32_hppa_size_stubs): Read symbol shndx
extension, and use with swap_symbol_in.
* elf64-hppa.c (elf64_hppa_check_relocs): Likewise.
* elf32-i370.c (i370_elf_finish_dynamic_sections): Adjust call to
bfd_elf32_swap_symbol_out.
* elf32-m32r.c (m32r_elf_get_relocated_section_contents): Translate
elf sections > SHN_HIRESERVE too.
* elf32-m68k.c (bfd_m68k_elf32_create_embedded_relocs): Only read
local syms. Read symbol shndx extension, and use with swap_symbol_in.
* elf32-mips.c (_bfd_mips_elf_final_write_processing): Use
elf_numsections rather than header e_shnum.
* elf32-sh.c (sh_elf_relax_section): As for elf-m10300.c.
(sh_elf_relax_delete_bytes): Likewise.
(sh_elf_get_relocated_section_contents): Likewise. Only read local
symbols.
* elf32-v850.c (v850_elf_symbol_processing): Use an unsigned int to
hold section index. Use elf_numsections rather than e_shnum.
Rename "index" -> "indx" to avoid shadowing warning.
(v850_elf_add_symbol_hook): Likewise.
* elf64-alpha.c (elf64_alpha_relax_section): Only read local syms.
Read symbol shndx extension, and use with swap_symbol_in.
* elf32-xstormy16.c (xstormy16_elf_relax_section): Likewise.
Translate SHN_COMMON and elf sections > SHN_HIRESERVE too.
* elfxx-ia64.c (elfNN_ia64_relax_section): Likewise.
(elfNN_ia64_aix_add_symbol_hook): Use elf_numsections.
* elf-m10300.c (mn10300_elf_gc_mark_hook): Remove unnecessary checks
before calling bfd_section_from_elf_index on local syms.
* elf32-arm.h (elf32_arm_gc_mark_hook): Likewise.
* elf32-avr.c (elf32_avr_gc_mark_hook): Likewise.
* elf32-cris.c (cris_elf_gc_mark_hook): Likewise.
* elf32-d10v.c (elf32_d10v_gc_mark_hook): Likewise.
* elf32-fr30.c (fr30_elf_gc_mark_hook): Likewise.
* elf32-hppa.c (elf32_hppa_gc_mark_hook): Likewise.
* elf32-i386.c (elf_i386_gc_mark_hook): Likewise.
* elf32-m32r.c (m32r_elf_gc_mark_hook): Likewise.
* elf32-m68k.c (elf_m68k_gc_mark_hook): Likewise.
* elf32-mcore.c (mcore_elf_gc_mark_hook): Likewise.
* elf32-mips.c (_bfd_mips_elf_gc_mark_hook): Likewise.
* elf32-openrisc.c (openrisc_elf_gc_mark_hook): Likewise.
* elf32-ppc.c (ppc_elf_gc_mark_hook): Likewise.
* elf32-s390.c (elf_s390_gc_mark_hook): Likewise.
* elf32-sh.c (sh_elf_gc_mark_hook): Likewise.
* elf32-sparc.c (elf32_sparc_gc_mark_hook): Likewise.
* elf32-v850.c (v850_elf_gc_mark_hook): Likewise.
* elf32-xstormy16.c (xstormy16_elf_gc_mark_hook): Likewise.
* elf64-mips.c (mips_elf64_gc_mark_hook): Likewise.
* elf64-mmix.c (mmix_elf_gc_mark_hook): Likewise.
* elf64-ppc.c (ppc64_elf_gc_mark_hook): Likewise.
* elf64-s390.c (elf_s390_gc_mark_hook): Likewise.
* elf64-x86-64.c (elf64_x86_64_gc_mark_hook): Likewise.
binutils/ChangeLog
* readelf.c (symtab_shndx_hdr): New global.
(SECTION_HEADER_INDEX): Define.
(SECTION_HEADER_NUM): Define.
(SECTION_HEADER): Define.
(GET_ELF_SYMBOLS): Pass two params rather than three.
(get_32bit_elf_symbols): Take file and section args. Read and
use SHT_SYMTAB_SHNDX.
(get_64bit_elf_symbols): Likewise.
(dump_relocations): Use SECTION_HEADER to index "section_headers".
(process_section_headers): Likewise. Use SECTION_HEADER_NUM too.
Remember symtab_shdx_hdr.
(process_program_headers): Scan from index 1 for segment map.
(slurp_ia64_unwind_table): Use SECTION_HEADER to index
"section_headers".
(process_relocs): Likewise. Also adjust call to GET_ELF_SYMBOLS.
(process_unwind): Likewise.
(process_version_sections): Likewise.
(process_symbol_table): Likewise.
(display_debug_info): Likewise.
(process_dynamic_segment): Fake up a symtab section for changed
GET_ELF_SYMBOLS.
(get_symbol_index_type): Check SHN_LOOS before SHN_LORESERVE.
(process_program_headers): Kill signed/unsigned warning.
(load_debug_str): Likewise.
(display_debug_info): Likewise.
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* internal.h (Elf_Internal_Ehdr): Change existing "unsigned short"
size, count and index fields to "unsigned int".
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* internal.h (elf_internal_shdr): Make contents a unsigned char *.
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