binutils-gdb/bfd/ChangeLog

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2017-02-17 Pedro Alves <palves@redhat.com>
* bfdio.c (real_ftell): Rename to ...
(_bfd_real_ftell): ... this.
(real_fseek): Rename to ...
(_bfd_real_fseek): ... this.
(real_fopen): Rename to ...
(_bfd_real_fopen): ... this.
* libbfd-in.h (real_ftell): Rename to ...
(_bfd_real_ftell): ... this.
(real_fseek): Rename to ...
(_bfd_real_fseek): ... this.
(real_fopen): Rename to ...
(_bfd_real_fopen): ... this.
* cache.c, dwarf2.c, opncls.c: Adjust all callers.
* libbfd.h: Regenerate.
2017-02-17 Pedro Alves <palves@redhat.com>
* dwarf2.c, elf-attrs.c, elf32-nds32.c: Adjust all callers.
* libbfd.c (read_unsigned_leb128): Rename to ...
(_bfd_read_unsigned_leb128): ... this.
(read_signed_leb128): Rename to ...
(_bfd_read_signed_leb128): ... this.
(safe_read_leb128): Rename to ...
(_bfd_safe_read_leb128): ... this.
* libbfd-in.h (read_unsigned_leb128): Rename to ...
(_bfd_read_unsigned_leb128): ... this.
(read_signed_leb128): Rename to ...
(_bfd_read_signed_leb128): ... this.
(safe_read_leb128): Rename to ...
(_bfd_safe_read_leb128): ... this.
* libbfd.h: Renegerate.
2017-02-16 Andrew Burgess <andrew.burgess@embecosm.com>
* dwarf2.c (_bfd_dwarf2_find_nearest_line): Perform symbol lookup
before trying to fine matching file and line information.
bfd/dwarf: Improve use of previously loaded dwarf information When parsing DWARF data in order to report file/line type error messages we perform section placement to make section addresses unique within relocatable object files. Currently, if we reuse previously loaded (and cached) dwarf data then we neglect to perform section placement, the result is that the section addresses will not be unique, and we might, incorrectly associate an address with the wrong debug information, and so report an incorrect file and line number. Further we neglect to check that that bfd for which we are looking up debug information is actually the bfd for which the previous debug information was loaded, it is possible that we will reuse previously loaded debug information for a different bfd. And finally, due to following of gnu_debuglink links in one bfd to another, the process of checking that the cached debug information is valid requires us to track the original bfd in the cached debug information. The original debug information here is either the bfd that we're interested in, not the bfd we finally load the debug information from. bfd/ChangeLog: * dwarf2.c (struct dwarf2_debug): Add orig_bfd member. (_bfd_dwarf2_slurp_debug_info): If stashed debug information does not match current bfd, then reload debug information. Record bfd we're loading debug info for in the stash. If we have debug informatin in the cache then perform section placement before returning. ld/ChangeLog: * testsuite/ld-elf/dwarf.exp (build_tests): Add new tests. * testsuite/ld-elf/dwarf2.err: New file. * testsuite/ld-elf/dwarf2a.c: New file. * testsuite/ld-elf/dwarf2b.c: New file. * testsuite/ld-elf/dwarf3.c: New file. * testsuite/ld-elf/dwarf3.err: New file.
2016-12-15 23:22:49 +08:00
2017-02-16 Andrew Burgess <andrew.burgess@embecosm.com>
* dwarf2.c (struct dwarf2_debug): Add orig_bfd member.
(_bfd_dwarf2_slurp_debug_info): If stashed debug information does
not match current bfd, then reload debug information. Record bfd
we're loading debug info for in the stash. If we have debug
informatin in the cache then perform section placement before
returning.
2017-02-16 Alan Modra <amodra@gmail.com>
PR 21000
* elf-bfd.h (struct elf_backend_data): Add no_page_alias.
* elfxx-target.h (elf_backend_no_page_alias): Define.
(elfNN_bed): Init new field.
* elf.c (assign_file_positions_for_load_sections): If no_page_alias
ensure PT_LOAD segment starts on a new page.
* elf32-hppa.c (elf_backend_no_page_alias): Define.
2017-02-16 Alan Modra <amodra@gmail.com>
PR 21132
* elf32-hppa.c (allocate_plt_static): Allocate space for relocs
if pic.
2017-02-16 Jiong Wang <jiong.wang@arm.com>
* bfd.c (BFD_FLAGS_SAVED): Add BFD_LINKER_CREATED.
* bfd-in2.h: Regenerated.
2017-02-15 H.J. Lu <hongjiu.lu@intel.com>
PR ld/21168
* elf32-i386.c (elf_i386_relocate_section): Allow
"lea foo@GOT, %reg" in PIC.
2017-02-15 H.J. Lu <hongjiu.lu@intel.com>
PR ld/20244
* elf32-i386.c (elf_i386_relocate_section): Properly get IFUNC
symbol name when reporting R_386_GOT32/R_386_GOT32X relocation
error against local IFUNC symbol without a base register for
PIC.
PowerPC/BFD: Convert `%P: %H:' to `%H:' in error messages Remove an inconsistency in BFD linker error messages across the PowerPC backends, where in the presence of line information the `%P: %H:' format sequence makes the first error message produced for any given function different from subsequent ones. Taking the `ld/testsuite/ld-powerpc/tocopt7.s' test case source as an example and the `powerpc-linux' target we have: $ as -gdwarf2 -o tocopt.o -a64 tocopt.s $ ld -o tocopt -melf64ppc tocopt.o ld: tocopt.o: In function `_start': tocopt.s:35:(.text+0x14): toc optimization is not supported for 0x3fa00000 instruction. ld: tocopt.s:49:(.text+0x34): toc optimization is not supported for 0x3fa00000 instruction. $ where the first error message does not have the source file name prefixed with the linker program executable's name, i.e. `ld:', whereas the second error message does, as would any subsequent. This is because with a multiple-line error message such as `%H' produces `%P' only prints the program executable's name on the first line and not any later ones. Also the PowerPC backend is the only part of BFD which uses `%P' along with one of the clever `%C', `%D', `%G', `%H' format specifiers. And last but not least this breaks a GNU Coding Standard's requirement that error messages from compilers should look like this: source-file-name:lineno: message also quoted in `vfinfo' code handling these specifiers. Convert `%P: %H:' to `%H:' in error messages across the PowerPC backends then, yielding: $ as -gdwarf2 -o tocopt.o -a64 tocopt.s $ ld -o tocopt -melf64ppc tocopt.o tocopt.o: In function `_start': tocopt.s:35:(.text+0x14): toc optimization is not supported for 0x3fa00000 instruction. tocopt.s:49:(.text+0x34): toc optimization is not supported for 0x3fa00000 instruction. $ instead, making it consistent and matching the GNU Coding Standard's requirement. bfd/ * elf32-ppc.c (ppc_elf_check_relocs): Use `%H:' rather than `%P: %H:' with `info->callbacks->einfo'. (ppc_elf_relocate_section): Likewise. * elf64-ppc.c (ppc64_elf_check_relocs): Likewise. (ppc64_elf_edit_toc): Likewise. (ppc64_elf_relocate_section): Likewise.
2017-02-07 10:07:21 +08:00
2017-02-15 Maciej W. Rozycki <macro@imgtec.com>
* elf32-ppc.c (ppc_elf_check_relocs): Use `%H:' rather than
`%P: %H:' with `info->callbacks->einfo'.
(ppc_elf_relocate_section): Likewise.
* elf64-ppc.c (ppc64_elf_check_relocs): Likewise.
(ppc64_elf_edit_toc): Likewise.
(ppc64_elf_relocate_section): Likewise.
2017-02-14 Alan Modra <amodra@gmail.com>
* elf64-ppc.c (ppc64_elf_gc_mark_dynamic_ref): Support
--gc-keep-exported, and test versioned field of sym rather than
looking for @ in name.
2017-02-13 Palmer Dabbelt <palmer@dabbelt.com>
* elfnn-riscv.c (riscv_global_pointer_value): Change _gp to
__global_pointer$.
2017-02-13 Nick Clifton <nickc@redhat.com>
PR binutils/21151
* dwarf2.c (_bfd_dwarf2_find_nearest_line): Check for an invalid
unit length field.
2017-02-07 Andrew Waterman <andrew@sifive.com>
* elfnn-riscv.c (riscv_elf_finish_dynamic_sections): Only write PLT
entry size if PLT header is written.
2017-02-06 Sheldon Lobo <sheldon.lobo@oracle.com>
Fix sparc64 dynamic relocation processing to use the dynamic
symbol count.
* elf64-sparc.c (elf64_sparc_slurp_one_reloc_table): Use 'dynamic'
to determine if bfd_get_symcount() or bfd_get_dynamic_symcount()
should be used.
2017-02-03 Nick Clifton <nickc@redhat.com>
PR 21096
* coffcode.h (coff_write_object_contents): Enlarge size of
s_name_buf in order to avoid compile time warning about possible
integer truncation.
* elf32-nds32.c (nds32_elf_ex9_import_table): Mask off lower
32-bits of insn value before printing into buffer.
2017-02-02 Maciej W. Rozycki <macro@imgtec.com>
* elfxx-mips.c (mips_elf_hash_sort_data): Add
`max_local_dynindx'.
(mips_elf_sort_hash_table): Handle it.
(mips_elf_sort_hash_table_f) <GGA_NONE>: For forced local
symbols bump up `max_local_dynindx' rather than
`max_non_got_dynindx'.
2017-02-02 Maciej W. Rozycki <macro@imgtec.com>
* elfxx-mips.c (mips_elf_hash_sort_data): Convert the
`min_got_dynindx', `max_unref_got_dynindx' and
`max_non_got_dynindx' members to the `bfd_size_type' data type.
(mips_elf_sort_hash_table): Adjust accordingly.
2017-02-02 Maciej W. Rozycki <macro@imgtec.com>
* elfxx-mips.c (mips_elf_sort_hash_table): Use `htab' throughout
to access the hash table.
2017-02-02 Maciej W. Rozycki <macro@imgtec.com>
* elfxx-mips.c (mips_elf_sort_hash_table): Move assertion on
non-NULL `htab' to the beginning.
2017-02-02 Maciej W. Rozycki <macro@imgtec.com>
* elflink.c (elf_gc_sweep): Wrap overlong line.
MIPS: Add options to control branch ISA checks Complement commit 9d862524f6ae ("MIPS: Verify the ISA mode and alignment of branch and jump targets") and add GAS and LD options to control the checks for invalid branches between ISA modes introduced there, to help with some handwritten code lacking `.insn' annotation for labels used as branch targets and code produced by older versions of GCC which suffers from the issue with branches to code that has been optimized away, addressed with GCC commit 242424 ("MIPS/GCC: Mark trailing labels with `.insn'"), <https://gcc.gnu.org/ml/gcc-patches/2016-11/msg01061.html>. bfd/ * elfxx-mips.h (_bfd_mips_elf_insn32): Rename prototype to... (_bfd_mips_elf_linker_flags): ... this. Add another parameter. * elfxx-mips.c (mips_elf_link_hash_table): Add `ignore_branch_isa' member. (mips_elf_perform_relocation): Do not treat an ISA mode mismatch in branch relocation calculation as an error if `ignore_branch_isa' has been set. (_bfd_mips_elf_insn32): Rename to... (_bfd_mips_elf_linker_flags): ... this. Rename the `on' parameter to `insn32' and add an `ignore_branch_isa' parameter. Handle the new parameter. gas/ * config/tc-mips.c (mips_ignore_branch_isa): New variable. (options): Add OPTION_IGNORE_BRANCH_ISA and OPTION_NO_IGNORE_BRANCH_ISA enum values. (md_longopts): Add "mignore-branch-isa" and "mno-ignore-branch-isa" options. (md_parse_option): Handle OPTION_IGNORE_BRANCH_ISA and OPTION_NO_IGNORE_BRANCH_ISA. (fix_bad_cross_mode_branch_p): Return FALSE if `mips_ignore_branch_isa' has been set. (md_show_usage): Add `-mignore-branch-isa' and `-mno-ignore-branch-isa'. * doc/as.texinfo (Target MIPS options): Add `-mignore-branch-isa' and `-mno-ignore-branch-isa' options. (-mignore-branch-isa, -mno-ignore-branch-isa): New options. * doc/c-mips.texi (MIPS Options): Add `-mignore-branch-isa' and `-mno-ignore-branch-isa' options. * testsuite/gas/mips/branch-local-ignore-2.d: New test. * testsuite/gas/mips/branch-local-ignore-3.d: New test. * testsuite/gas/mips/branch-local-ignore-n32-2.d: New test. * testsuite/gas/mips/branch-local-ignore-n32-3.d: New test. * testsuite/gas/mips/branch-local-ignore-n64-2.d: New test. * testsuite/gas/mips/branch-local-ignore-n64-3.d: New test. * testsuite/gas/mips/mips.exp: Run the new tests. ld/ * emultempl/mipself.em (ignore_branch_isa): New variable. (mips_create_output_section_statements): Rename `_bfd_mips_elf_insn32' called to `_bfd_mips_elf_linker_flags', add `ignore_branch_isa' argument. (PARSE_AND_LIST_PROLOGUE): Add OPTION_IGNORE_BRANCH_ISA and OPTION_NO_IGNORE_BRANCH_ISA enum values. (PARSE_AND_LIST_LONGOPTS): Add "ignore-branch-isa" and "no-ignore-branch-isa" options. (PARSE_AND_LIST_OPTIONS): Add `--ignore-branch-isa' and `--no-ignore-branch-isa'. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_IGNORE_BRANCH_ISA and OPTION_NO_IGNORE_BRANCH_ISA. * ld.texinfo (Options specific to MIPS targets): Add `--ignore-branch-isa' and `--no-ignore-branch-isa' options. (ld and the MIPS family): Likewise. * testsuite/ld-mips-elf/bal-jalx-pic-ignore.d: New test. * testsuite/ld-mips-elf/bal-jalx-pic-ignore-n32.d: New test. * testsuite/ld-mips-elf/bal-jalx-pic-ignore-n64.d: New test. * testsuite/ld-mips-elf/unaligned-branch-ignore-2.d: New test. * testsuite/ld-mips-elf/unaligned-branch-ignore-r6-1: New test. * testsuite/ld-mips-elf/unaligned-branch-ignore-mips16: New test. * testsuite/ld-mips-elf/unaligned-branch-ignore-micromips: New test. * testsuite/ld-mips-elf/mips-elf.exp: Run the new tests.
2017-01-31 01:11:22 +08:00
2017-01-30 Maciej W. Rozycki <macro@imgtec.com>
* elfxx-mips.h (_bfd_mips_elf_insn32): Rename prototype to...
(_bfd_mips_elf_linker_flags): ... this. Add another parameter.
* elfxx-mips.c (mips_elf_link_hash_table): Add
`ignore_branch_isa' member.
(mips_elf_perform_relocation): Do not treat an ISA mode mismatch
in branch relocation calculation as an error if
`ignore_branch_isa' has been set.
(_bfd_mips_elf_insn32): Rename to...
(_bfd_mips_elf_linker_flags): ... this. Rename the `on'
parameter to `insn32' and add an `ignore_branch_isa' parameter.
Handle the new parameter.
2017-01-27 Hans-Peter Nilsson <hp@axis.com>
* elf32-cris.c (elf_cris_finish_dynamic_symbol): Remove now unused
local variable dynobj.
PR ld/20995
* elf32-cris.c (elf_cris_size_dynamic_sections): Handle sdynrelro.
(elf_cris_adjust_dynamic_symbol): Place variables copied into the
executable from read-only sections into sdynrelro.
(elf_cris_finish_dynamic_symbol): Select sreldynrelro for
dynamic relocs in sdynrelro.
(elf_backend_want_dynrelro): Define.
2017-01-25 Sebastian Huber <sebastian.huber@embedded-brains.de>
* config.bfd (*-*-rtemsaout*): Mark as removed.
2017-01-25 Sebastian Huber <sebastian.huber@embedded-brains.de>
* config.bfd (powerpcle-*-rtems*): Do not mark as removed.
(arm-*-rtems*): Move to (arm*-*-eabi*).
(i[3-7]86-*-rtems*): Move to (i[3-7]86-*-elf*).
(m68-*-rtems*): Move to (m68*-*-elf*).
2017-01-25 Sebastian Huber <sebastian.huber@embedded-brains.de>
* config.bfd (*-*-rtemscoff*): Mark as removed.
PR ld/20828: Reorder the symbol sweep stage of section GC Complement commit 81ff47b3a546 ("PR ld/20828: Fix linker script symbols wrongly forced local with section GC") and move the symbol sweep stage of section GC from `elf_gc_sweep' to `bfd_elf_size_dynamic_sections', avoiding the need to clear the `forced_local' marker, problematic for targets that have special processing in their `elf_backend_hide_symbol' handler. Set `mark' instead in `bfd_elf_record_link_assignment' and, matching changes from commit 3bd43ebcb602 ("ld --gc-sections fail with __tls_get_addr_opt"), also in PowerPC `__tls_get_addr_opt' handling code, removing a: FAIL: PR ld/20828 dynamic symbols with section GC (version script) test suite failure with the `score-elf' target. The rationale is it is enough if symbols are swept at the beginning of `bfd_elf_size_dynamic_sections' as it is only in this function that the size of the GOT, the dynamic symbol table and other dynamic sections is determined, which will depend on the number of symbols making it to the dynamic symbol table. It is also appropriate to do the sweep at this point as it is already after any changes have been made to symbols with `bfd_elf_record_link_assignment', and not possible any earlier as calls to that function are only made just beforehand -- barring audit entry processing -- via `gld${EMULATION_NAME}_find_statement_assignment' invoked from `gld${EMULATION_NAME}_before_allocation' which is the ELF handler for `ldemul_before_allocation'. bfd/ PR ld/20828 * elflink.c (bfd_elf_record_link_assignment): Revert last change and don't ever clear `forced_local'. Set `mark' unconditionally. (elf_gc_sweep_symbol_info, elf_gc_sweep_symbol): Reorder within file. (elf_gc_sweep): Move the call to `elf_gc_sweep_symbol'... (bfd_elf_size_dynamic_sections): ... here. * elf32-ppc.c (ppc_elf_tls_setup): Don't clear `forced_local' and set `mark' instead in `__tls_get_addr_opt' processing. * elf64-ppc.c (ppc64_elf_tls_setup): Likewise.
2017-01-23 19:38:20 +08:00
2017-01-24 Maciej W. Rozycki <macro@imgtec.com>
PR ld/20828
* elflink.c (bfd_elf_record_link_assignment): Revert last
change and don't ever clear `forced_local'. Set `mark'
unconditionally.
(elf_gc_sweep_symbol_info, elf_gc_sweep_symbol): Reorder within
file.
(elf_gc_sweep): Move the call to `elf_gc_sweep_symbol'...
(bfd_elf_size_dynamic_sections): ... here.
* elf32-ppc.c (ppc_elf_tls_setup): Don't clear `forced_local'
and set `mark' instead in `__tls_get_addr_opt' processing.
* elf64-ppc.c (ppc64_elf_tls_setup): Likewise.
PowerPC dynamic relocations This patch fixes a number of issues with powerpc dynamic relocations. 1) Both ppc and ppc64 were emitting more dynamic symbols and relocations than necessary, due to not supporting static linker resolution of tls_index entries for __tls_get_addr_opt. This meant that any @got@tlsgd or @got@tlsld reloc needed to make their symbols dynamic and generate dptmod and dtprel relocs for the dynamic linker. That would have been passable, but what happened was that practically all @got relocations resulted in their symbols being made dynamic and dynamic relocations emitted against the GOT entries. (Mostly visible on ppc32 executables since ppc64 gcc really only uses @got style relocs for TLS.) 2) The PowerOpen syntax was not supported with __tls_get_addr_opt. DTPMOD/DTPREL relocs on tls_index TOC entries did not use the trick of forcing dynamic symbols and relocations so those entries always resulted in the full __tls_get_addr processing. gcc doesn't use the PowerOpen syntax for TLS, and normally such code would be optimized to TLS IE or LE so the impact of missing this support was minimal. 3) In an executable, relocations against GNU indirect functions always used the value of their PLT stub. While this is correct, it is better in some cases to use a dynamic relocation. An extra dynamic relocation can mean that calls via function pointers need not bounce through the PLT stub at runtime. The patch also tidies the PLT handling code in ppc32 allocate_dynrelocs. Allocating PLT entries after other dynamic relocs allows the PLT loop to omit special handling for undefined weak symbols, and that in turn allows the loop to be simplified. bfd/ * elf32-ppc.c (ppc_elf_adjust_dynamic_symbol): Merge two cases where dynamic relocs are preferable. Allow ifunc too. (ensure_undefweak_dynamic): New function. (allocate_dynrelocs): Use it here. Move plt handling last and don't make symbols dynamic, simplifying loop. Only make undef weak symbols with GOT entries dynamic. Correct condition for GOT relocs. Handle dynamic relocs on ifuncs. Correct comments. Remove goto. (ppc_elf_relocate_section): Correct test for using dynamic symbol on GOT relocs. Rearrange test for emitting GOT relocs to suit. Set up explicit tls_index entries and implicit GOT tls_index entries resolvable at link time for __tls_get_addr_opt. Simplify test to clear mem for prelink. * elf64-ppc.c (allocate_got): Correct condition for GOT relocs. (ensure_undefweak_dynamic): New function. (allocate_dynrelocs): Use it here. Only make undef weak symbols with GOT entries dynamic. Remove unnecessary test of WILL_CALL_FINISH_DYNAMIC_SYMBOL in PLT handling. (ppc64_elf_relocate_section): Correct test for using dynamic symbol on GOT relocs. Rearrange test for emitting GOT relocs to suit. Set up explicit tls_index entries and implicit GOT tls_index entries resolvable at link time for __tls_get_addr_opt. Simplify expression to clear mem for prelink. ld/ * testsuite/ld-powerpc/tlsexe.r: Update for fewer dynamic relocs and symbols. * testsuite/ld-powerpc/tlsexe.d: Likewise. * testsuite/ld-powerpc/tlsexe.g: Likewise.
2017-01-24 06:13:01 +08:00
2017-01-24 Alan Modra <amodra@gmail.com>
* elf32-ppc.c (ppc_elf_adjust_dynamic_symbol): Merge two cases
where dynamic relocs are preferable. Allow ifunc too.
(ensure_undefweak_dynamic): New function.
(allocate_dynrelocs): Use it here. Move plt handling last and
don't make symbols dynamic, simplifying loop. Only make undef
weak symbols with GOT entries dynamic. Correct condition
for GOT relocs. Handle dynamic relocs on ifuncs. Correct
comments. Remove goto.
(ppc_elf_relocate_section): Correct test for using dynamic
symbol on GOT relocs. Rearrange test for emitting GOT relocs
to suit. Set up explicit tls_index entries and implicit GOT
tls_index entries resolvable at link time for
__tls_get_addr_opt. Simplify test to clear mem for prelink.
* elf64-ppc.c (allocate_got): Correct condition for GOT relocs.
(ensure_undefweak_dynamic): New function.
(allocate_dynrelocs): Use it here. Only make undef weak symbols
with GOT entries dynamic. Remove unnecessary test of
WILL_CALL_FINISH_DYNAMIC_SYMBOL in PLT handling.
(ppc64_elf_relocate_section): Correct test for using dynamic
symbol on GOT relocs. Rearrange test for emitting GOT relocs
to suit. Set up explicit tls_index entries and implicit GOT
tls_index entries resolvable at link time for __tls_get_addr_opt.
Simplify expression to clear mem for prelink.
2017-01-23 Yury Norov <ynorov@caviumnetworks.com>
* elfnn-aarch64.c: Fix relaxations for ILP32 mode.
2017-01-20 Jiong Wang <jiong.wang@arm.com>
* elfnn-aarch64.c (elf_aarch64_hash_symbol): New function.
(elf_backend_hash_symbol): Define.
PR ld/20828: Fix linker script symbols wrongly forced local with section GC Fix a generic ELF linker regression introduced with a chain of changes made to unused input section garbage collection: - commit 1a766c6843ce ("Also hide symbols without PLT nor GOT references."), <https://sourceware.org/ml/binutils/2011-09/msg00076.html>, - commit 1d5316ab67e1 ("PR ld/13177: garbage collector retains zombie references to external libraries"), <https://sourceware.org/ml/binutils/2011-10/msg00161.html>, - commit 6673f753c019 ("Fix PR 12772, garbage collection of dynamic syms"), <https://sourceware.org/ml/binutils/2011-12/msg00077.html>, causing the garbage collection of unused symbols present in a DSO involved in a link to make identically named symbols ordinarily defined (i.e. not hidden or PROVIDEd) by a linker script local, even though the latter symbols are supposed to be global as if no DSO defined them as well. This is because linker script assignments are processed very late as `lang_process' proceeds, down in the call to `ldemul_before_allocation', which is made after the call to `lang_gc_sections' to do input section garbage collecting. Consequently if unused, then any such DSO-defined symbol has already been garbage-collected and internally marked local. It would ordinarily be removed from dynamic symbol table output, however a linker script assignment correctly replaces its original definition with the new one and enters it into the dynamic symbol table produced as it is supposed to be exported. The original local marking is however retained making the symbol local in the dynamic symbol table and therefore not available externally. This also causes a sorting problem with the MIPS target, which does not expect non-section local dynamic symbols to be output and produces an invalid binary. Fix the problem then, by removing the `forced_local' marking for the offending case and add suitable test cases. First to verify that unused symbols ordinarily defined with linker script assignments remain exported in the context of input section garbage collection whether or not a DSO defining identically named symbols is present in the link. Second that a linker version script still correctly retains or removes such symbols as requested. bfd/ PR ld/20828 * elflink.c (bfd_elf_record_link_assignment): Clear any `forced_local' marking for DSO symbols that are not being provided. ld/ PR ld/20828 * testsuite/ld-elf/pr20828-1.sd: New test. * testsuite/ld-elf/pr20828-2a.sd: New test. * testsuite/ld-elf/pr20828-2b.sd: New test. * testsuite/ld-elf/pr20828.ld: New test linker script. * testsuite/ld-elf/pr20828.ver: New test version script. * testsuite/ld-elf/pr20828.s: New test source. * testsuite/ld-elf/shared.exp: Run the new test.
2017-01-17 06:10:57 +08:00
2017-01-18 Maciej W. Rozycki <macro@imgtec.com>
PR ld/20828
* elflink.c (bfd_elf_record_link_assignment): Clear any
`forced_local' marking for DSO symbols that are not being
provided.
2017-01-17 Kuan-Lin Chen <kuanlinchentw@gmail.com>
* elfnn-riscv.c (riscv_elf_object_p): New function.
2017-01-12 H.J. Lu <hongjiu.lu@intel.com>
PR ld/21038
* elf64-x86-64.c (elf_x86_64_link_hash_table): Add
plt_bnd_eh_frame.
(elf_x86_64_check_relocs): Create .eh_frame section for the
.plt.bnd section.
(elf_x86_64_size_dynamic_sections): Allocate and initialize
.eh_frame section for the .plt.bnd section.
(elf_x86_64_finish_dynamic_sections): Adjust .eh_frame section
for the .plt.bnd section.
2017-01-12 Nick Clifton <nickc@redhat.com>
PR binutils/20876
* opncls.c (find_separate_debug_file): Add include_dirs
parameter. Only include the directory part of the bfd's filename
in search paths if include_dirs is true. Add a couple of extra
locations for looking for debug files.
( bfd_follow_gnu_debuglink): Update invocation of
find_separate_debug_file.
(bfd_follow_gnu_debugaltlink): Likewise.
(get_build_id): New function: Finds the build-id of the given bfd.
(get_build_id_name): New function: Computes the name of the
separate debug info file for a bfd, based upon its build-id.
(check_build_id_file): New function: Checks to see if a separate
debug info file exists at the given location, and that its
build-id matches that of the original bfd.
(bfd_follow_build_id_debuglink): New function: Finds a separate
debug info file for a given bfd by using the build-id method.
* dwarf2.c (_bfd_dwarf2_slurp_debug_info): Try using the build-id
method of locating a separate debug info file before using the
debuglink method.
* bfd-in2.h: Regenerate.
2017-01-11 H.J. Lu <hongjiu.lu@intel.com>
PR ld/21038
* elf64-x86-64.c (elf_x86_64_eh_frame_bnd_plt): New.
(elf_x86_64_bnd_arch_bed): Use elf_x86_64_eh_frame_bnd_plt and
elf_x86_64_eh_frame_plt_got.
(elf_x86_64_size_dynamic_sections): Get unwind info from
elf_x86_64_bnd_arch_bed for the BND PLT.
2017-01-11 Jeremy Soller <jackpot51@gmail.com>
* config.bfd: Add entries for i686-redox and x86_64-redox.
2017-01-10 H.J. Lu <hongjiu.lu@intel.com>
* elf32-i386.c (elf_i386_check_relocs): Align .eh_frame section
to 4 bytes.
* elf64-x86-64.c (elf_x86_64_create_dynamic_sections): Align
.eh_frame section to 4 bytes for x32.
(elf_x86_64_check_relocs): Likewise.
i386/x86-64: Add unwind info for .plt.got section When there are both PLT and GOT references to the same function symbol, linker combines GOTPLT and GOT slots into a single GOT slot and create an entry in .plt.got section for PLT access via the GOT slot. This patch adds unwind info for .plt.got section. bfd/ PR ld/20830 * elf32-i386.c (elf_i386_eh_frame_plt_got): New. (PLT_GOT_FDE_LENGTH): Likewise. (elf_i386_plt_layout): Add eh_frame_plt_got and eh_frame_plt_got_size. (elf_i386_plt): Updated. (elf_i386_link_hash_table): Add plt_got_eh_frame. (elf_i386_check_relocs): Create .eh_frame section for .plt.got. (elf_i386_size_dynamic_sections): Allocate and initialize .eh_frame section for .plt.got. (elf_i386_finish_dynamic_sections): Adjust .eh_frame section for .plt.got. (elf_i386_nacl_plt): Add FIXME for eh_frame_plt_got and eh_frame_plt_got_size. * elf64-x86-64.c (elf_x86_64_eh_frame_plt_got): New. (PLT_GOT_FDE_LENGTH): Likewise. (elf_x86_64_backend_data): Add eh_frame_plt_got and eh_frame_plt_got_size. (elf_x86_64_arch_bed): Updated. (elf_x86_64_bnd_arch_bed): Add FIXME for eh_frame_plt_got and eh_frame_plt_got_size. (elf_x86_64_nacl_arch_bed): Likewise. (elf_x86_64_link_hash_table): Add plt_got_eh_frame. (elf_x86_64_check_relocs): Create .eh_frame section for .plt.got. (elf_x86_64_size_dynamic_sections): Allocate and initialize .eh_frame section for .plt.got. (elf_x86_64_finish_dynamic_sections): Adjust .eh_frame section for .plt.got. ld/ PR ld/20830 * testsuite/ld-i386/i386.exp: Run pr20830. * testsuite/ld-x86-64/x86-64.exp: Likewise. * testsuite/ld-i386/pr20830.d: New file. * testsuite/ld-i386/pr20830.s: Likewise. * testsuite/ld-x86-64/pr20830.d: Likewise. * testsuite/ld-x86-64/pr20830.s: Likewise.
2017-01-11 05:31:59 +08:00
2017-01-10 H.J. Lu <hongjiu.lu@intel.com>
PR ld/20830
* elf32-i386.c (elf_i386_eh_frame_plt_got): New.
(PLT_GOT_FDE_LENGTH): Likewise.
(elf_i386_plt_layout): Add eh_frame_plt_got and
eh_frame_plt_got_size.
(elf_i386_plt): Updated.
(elf_i386_link_hash_table): Add plt_got_eh_frame.
(elf_i386_check_relocs): Create .eh_frame section for .plt.got.
(elf_i386_size_dynamic_sections): Allocate and initialize
.eh_frame section for .plt.got.
(elf_i386_finish_dynamic_sections): Adjust .eh_frame section for
.plt.got.
(elf_i386_nacl_plt): Add FIXME for eh_frame_plt_got and
eh_frame_plt_got_size.
* elf64-x86-64.c (elf_x86_64_eh_frame_plt_got): New.
(PLT_GOT_FDE_LENGTH): Likewise.
(elf_x86_64_backend_data): Add eh_frame_plt_got and
eh_frame_plt_got_size.
(elf_x86_64_arch_bed): Updated.
(elf_x86_64_bnd_arch_bed): Add FIXME for eh_frame_plt_got and
eh_frame_plt_got_size.
(elf_x86_64_nacl_arch_bed): Likewise.
(elf_x86_64_link_hash_table): Add plt_got_eh_frame.
(elf_x86_64_check_relocs): Create .eh_frame section for .plt.got.
(elf_x86_64_size_dynamic_sections): Allocate and initialize
.eh_frame section for .plt.got.
(elf_x86_64_finish_dynamic_sections): Adjust .eh_frame section
for .plt.got.
2017-01-10 H.J. Lu <hongjiu.lu@intel.com>
* elf32-i386.c (elf_i386_size_dynamic_sections): Set
plt_eh_frame->size to eh_frame_plt_size and use eh_frame_plt.
2017-01-09 Nick Clifton <nickc@redhat.com>
* dwarf2.c (lookup_address_in_function_table): Return early if
there are no functions in the given comp unit, or if the high
address of the last function in the comp unit is less than the
desired address.
2017-01-09 Nick Clifton <nickc@redhat.com>
PR binutils/21013
* coffgen.c (_bfd_coff_get_external_symbols): Generate an error
message if there are too many symbols to load.
2017-01-04 James Clarke <jrtc27@jrtc27.com>
* elf64-alpha.c (elf64_alpha_relax_opt_call): Don't set tsec_free
if relocs are cached.
2017-01-03 Rich Felker <bugdal@aerifal.cx>
PR ld/21017
* elf32-microblaze.c (microblaze_elf_check_relocs): Add an entry
for R_MICROBLAZE_GOTOFF_64.
2017-01-03 Nick Clifton <nickc@redhat.com>
* mach-o.c (bfd_mach_o_lookup_uuid_command): Fix compile time
warning about using a possibly uninitialised variable.
2017-01-02 Alan Modra <amodra@gmail.com>
* elf32-hppa.c (ensure_undef_weak_dynamic): New function.
(allocate_plt_static, allocate_dynrelocs): Use it.
2017-01-02 Alan Modra <amodra@gmail.com>
* elf-hppa.h (elf_hppa_fake_sections): Set SHF_INFO_LINK for
.PARISC.unwind section.
2017-01-02 Alan Modra <amodra@gmail.com>
PR ld/20989
* elfxx-sparc.c (gdop_relative_offset_ok): New function.
(_bfd_sparc_elf_relocate_section): Use it to validate GOT
indirect to GOT pointer relative code edit.
2017-01-02 Alan Modra <amodra@gmail.com>
Update year range in copyright notice of all files.
2017-01-02 11:25:05 +08:00
For older changes see ChangeLog-2016
2017-01-02 11:25:05 +08:00
Copyright (C) 2017 Free Software Foundation, Inc.
Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved.
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