2016-07-01 Thomas Preud'homme <thomas.preudhomme@arm.com>
bfd/
* elf32-arm.c (using_thumb2_bl): New function.
(arm_type_of_stub): Declare thumb2 variable together and change type
to bfd_boolean. Use using_thumb2_bl () to determine whether
THM_MAX_FWD_BRANCH_OFFSET or THM2_MAX_FWD_BRANCH_OFFSET should be
checked for BL range.
(elf32_arm_final_link_relocate): Use using_thumb2_bl () to determine
the bit size of BL offset.
ld/
* testsuite/ld-arm/arm-elf.exp (Thumb-2 BL): Assemble for ARMv7.
(Thumb-2 BL on ARMv6-M): New testcase.
* testsuite/ld-arm/thumb2-bl.d: Do not try to match testcase filename.
* testsuite/ld-arm/thumb2-bl.s: Do not select architecture.
bfd * elfnn-aarch64.c (is_aarch64_mapping_symbol): New function.
Returns TRUE for AArch64 mapping symbols.
(elfNN_aarch64_backend_symbol_processing): New function. Marks
mapping symbols as precious in object files so that they will not
be stripped.
(elf_backend_symbol_processing): Define.
* elf32-arm.c (is_arm_mapping_symbol): New function. Returns TRUE
for ARM mapping symbols.
(elf32_arm_backend_symbol_processing): Make use of the new function.
No need to check version if symbol is unreferenced and undefined.
bfd/
PR ld/20306
* elflink.c (elf_link_check_versioned_symbol): Return false
for unreferenced undefined symbol.
ld/testsuite/
* testsuite/ld-gc/gc.exp: Run pr20306 test.
* ld-gc/pr20306.c: New file.
* ld-gc/pr20306.d: Likewise.
bfin * elf32-bfin.c (bfin_adjust_dynamic_symbol): Fail if a COPY reloc
is needed.
ld * testsuite/ld-elf/comm-data.exp: Expect comm-data2 test to fail
for bfin.
* testsuite/ld-elf/elf.exp: Expect pr14170 and symbolic function
tests to fail for bfin.
* testsuite/ld-elf/endsym.d: Expect to fail with cr16, crx, dlx,
nds32 and visium.
* testsuite/ld-elf/var1.d: Expect to fail with d30v, dlx, ft32 and
microblaze.
* testsuite/ld-pe/pe.exp: Expect foreign symbol test to fail for
mcore-pe.
* elf32-arm.c (elf32_arm_backend_symbol_processing): New
function. Marks mapping symbols in object files as precious, so
that strip will not remove them.
(elf_backend_symbol_processing): Define.
bfd * elfxx-sparc.c (_bfd_sparc_elf_relocate_section): Don't convert
R_SPARC_32 to R_SPARC_RELATIVE if class is ELFCLASS64.
gold * sparc.cc (Target_sparc::Scan::local): Don't convert R_SPARC_32
to R_SPARC_RELATIVE if class is ELFCLASS64.
(Target_sparc::Scan::global): Likewise.
ld * testsuite/ld-elf/symbolic-func.r: Allow non-zero offsets from
.text.
b399102 fixed the testcase in this PR but it may be possible to
trigger the problem in other ways.
PR ld/19264
* elf64-ppc.c (STUB_SHRINK_ITER): Define.
(ppc64_elf_size_stubs): Exit stub sizing loop past STUB_SHRINK_ITER
if shrinking stubs.
(ppc64_elf_size_stubs): Adjust to suit.
The procstat AUXV core dump note in FreeBSD consists of 32-bit integer
followed by an array of auxiliary vector entries.
bfd/ChangeLog:
* elf.c (elfcore_grok_freebsd_note): Handle NT_FREEBSD_PROCSTAT_AUXV
notes.
Move parsing of FreeBSD-specific ELF core notes out of elfcore_grok_note
into a new elfcore_grok_freebsd_note function. Add core note grok routines
for FreeBSD's psinfo and prstatus notes while here rather than depending
on the native handling in elfcore_grok_note.
bfd/ChangeLog:
* elf.c (elfcore_grok_note): Remove handling of NT_X86_XSTATE for
FreeBSD. Remove case for NT_FREEBSD_THRMISC.
(elfcore_grok_freebsd_psinfo): New function.
(elfcore_grok_freebsd_prstatus): New function.
(elfcore_grok_freebsd_note): New function.
(elf_parse_notes): Use "elfcore_grok_freebsd_note" for "FreeBSD"
notes.
When configured with the default options, GDB currently fails to link,
due to an undefined reference to bfd_link_plugin_object_p, coming from
elflink.c:
#ifdef BFD_SUPPORTS_PLUGINS
|| (abfd->plugin_format == bfd_plugin_unknown
&& bfd_link_plugin_object_p (abfd))
#endif
This is because BFD_SUPPORTS_PLUGINS is always defined. It is its value
that determines whether plugin support is enabled or not.
bfd/ChangeLog:
* elflink.c: Check the value of BFD_SUPPORTS_PLUGINS rather
than its existance.
Some MIPS targets use a named section symbol rather than a symbol with
no name as is used with most ELF targets. When renaming sections, the
named section symbol needs to be renamed too.
Rather than fix this bug, I'd originally intended to just correct the
xfail added recently for update-1.o vs update4.o in update-section.exp,
using the same set of targets for the localize-hidden-1 mips xfail.
I'd extracted that target test into a new function, is_bad_symtab. It
turns out to be useful in readelf.exp too.
bfd/
* config.bfd: Delete mips vxworks patterns matched earlier.
Combine mips*-*-none with mips*-*-elf*.
binutils/
* objcopy.c (find_section_rename): Forward declare. Remove
ibfd and sec_ptr param. Add old_name param. Allow for NULL
returned_flags. Move read of section name and flags to..
(setup_section): ..here. Update find_section_rename call.
(filter_symbols): Rename section symbols for renamed sections.
(copy_object): Call filter_symbols when renamed sections.
* testsuite/lib/binutils-common.exp (is_bad_symtab): New.
* testsuite/binutils-all/update-section.exp: Revert 96037eb0
mips xfail.
* testsuite/binutils-all/objcopy.exp (copy_executable): Use
is_bad_symtab.
(localize-hidden-1): xfail if is_bad_symtab.
* testsuite/binutils-all/readelf.exp: Use is_bad_symtab to select
between mips/tmips.
As with commit ed53407eec ("MIPS/BFD: Don't stop processing on
`bfd_reloc_outofrange'") don't bail out right away and instead continue
processing on a cross-mode jump conversion error, so that any further
issues are also reported. Adjust message formatting accordingly, using
`%X' to abort processing at conclusion. Remove the full stop from the
end of the message, for consistency across error reporting.
Adjust the corresponding test case accordingly and make it trigger the
error twice.
bfd/
* elfxx-mips.c (mips_elf_perform_relocation): Call
`info->callbacks->einfo' rather than `*_bfd_error_handler' and
use the `%X%H' format for the cross-mode jump conversion error
message. Remove the full stop from the end of the message.
Continue processing rather than returning failure.
ld/
* testsuite/ld-mips-elf/mode-change-error-1a.s: Trigger an error
twice rather than once.
* testsuite/ld-mips-elf/mode-change-error-1.d: Adjust
accordingly. Remove the full stop from the end of the message.
ELF linker shouldn't skip the IR object when searching the symbol table
of an archive element. If linker doesn't know if the object file is an
IR object, it should give LTO plugin a chance to get the correct symbol
table and use the IR symbol table if the input is an IR object.
bfd/
PR ld/18250
PR ld/20267
* elflink.c: Include plugin.h if BFD_SUPPORTS_PLUGINS is
defined.
(elf_link_is_defined_archive_symbol): Call
bfd_link_plugin_object_p on unknown plugin object and use the
IR symbol table if the input is an IR object.
* plugin.c (bfd_link_plugin_object_p): New function.
* plugin.h (bfd_link_plugin_object_p): New prototype.
ld/
PR ld/20267
* testsuite/ld-plugin/lto.exp (lto_link_tests): Add test for
PR ld/20267.
(lto_run_tests): Likewise.
* testsuite/ld-plugin/pr20267a.c: New file.
* testsuite/ld-plugin/pr20267b.c: Likewise.
Also, don't check alignment on symbol from plugin dummy input.
bfd/
PR ld/20276
* elflink.c (elf_link_add_object_symbols): Don't check alignment
on symbol from plugin dummy input.
ld/
PR ld/20276
* plugin.c (plugin_notice): Set non_ir_ref on common symbols.
* testsuite/ld-plugin/lto.exp (lto_link_tests): Add test for
PR ld/20276.
(lto_run_tests): Likewise.
* testsuite/ld-plugin/pass.out: New file.
* testsuite/ld-plugin/pr20276a.c: Likewise.
* testsuite/ld-plugin/pr20276b.c: Likewise.
2016-06-17 Thomas Preud'homme <thomas.preudhomme@arm.com>
Tony Wang <tony.wang@arm.com>
bfd/
* elf32-arm.c (elf32_arm_stub_long_branch_thumb2_only): Define stub
sequence.
(stub_long_branch_thumb2_only): Define stub.
(arm_stub_is_thumb): Add case for arm_stub_long_branch_thumb2_only.
(arm_stub_long_branch_thumb2_only): Likewise.
(arm_type_of_stub): Use arm_stub_long_branch_thumb2_only for Thumb-2
capable targets.
ld/
* testsuite/ld-arm/arm-elf.exp (Thumb-Thumb farcall M profile):
Assemble for ARMv6-M.
(Thumb2-Thumb2 farcall M profile): New testcase.
* testsuite/ld-arm/farcall-thumb2-thumb2-m.d: New file.
* testsuite/ld-arm/jump-reloc-veneers-cond-long-backward.d: Update to
reflect the use of Thumb-2 veneers for Thumb-2 capable targets.
* testsuite/ld-arm/jump-reloc-veneers-cond-long.d: Likewise.
This patch adds support for the opcode architectures
SPARC_OPCODE_ARCH_V9{C,D,E,V,M} and its associated BFD machine numbers
bfd_mach_sparc_v9{c,d,e,v,m} and bfd_mach_sparc_v8plus{c,d,e,v,m}.
Note that for arches up to v9b (UltraSPARC III), the detection of the
BFD machine type was based on the bits in the e_machine field of the ELF
header. However, there are no more available bits in that field, so
this patch takes the approach of using the hardware capabilities stored
in the object attributes HWCAPS/HWCAPS2 in order to characterize the
machine the object was built for.
bfd/ChangeLog:
2016-06-17 Jose E. Marchesi <jose.marchesi@oracle.com>
* archures.c (bfd_mach_sparc_v8plusc): Define.
(bfd_mach_sparc_v9c): Likewise.
(bfd_mach_sparc_v8plusd): Likewise.
(bfd_mach_sparc_v9d): Likewise.
(bfd_mach_sparc_v8pluse): Likewise.
(bfd_mach_sparc_v9e): Likewise.
(bfd_mach_sparc_v8plusv): Likewise
(bfd_mach_sparc_v9v): Likewise.
(bfd_mach_sparc_v8plusm): Likewise.
(bfd_mach_sparc_v9m): Likewise.
(bfd_mach_sparc_v9_p): Adapt to v8plusm and v9m.
(bfd_mach_sparc_64bit_p): Likewise.
* bfd-in2.h: Regenerate.
* cpu-sparc.c (arch_info_struct): Add entries for
bfd_mach_sparc_v8plus{c,d,e,v,m} and bfd_mach_sparc_v9{c,d,e,v,m}.
* aoutx.h (machine_type): Handle bfd_mach_sparc_v8plus{c,d,e,v,m}
and bfd_mach_sparc_v9{c,d,e,v,m}.
* elf32-sparc.c (elf32_sparc_final_write_processing): Likewise.
* elfxx-sparc.c (_bfd_sparc_elf_object_p): Likewise.
include/ChangeLog:
2016-06-17 Jose E. Marchesi <jose.marchesi@oracle.com>
* opcode/sparc.h (enum sparc_opcode_arch_val): Add
SPARC_OPCODE_ARCH_V9C, SPARC_OPCODE_ARCH_V9D,
SPARC_OPCODE_ARCH_V9E, SPARC_OPCODE_ARCH_V9V and
SPARC_OPCODE_ARCH_V9M.
opcodes/ChangeLog:
2016-06-17 Jose E. Marchesi <jose.marchesi@oracle.com>
* sparc-dis.c (MASK_V9): Add SPARC_OPCODE_ARCH_V9{C,D,E,V,M}.
(compute_arch_mask): Handle bfd_mach_sparc_v8plus{c,d,e,v,m} and
bfd_mach_sparc_v9{c,d,e,v,m}.
* sparc-opc.c (MASK_V9C): Define.
(MASK_V9D): Likewise.
(MASK_V9E): Likewise.
(MASK_V9V): Likewise.
(MASK_V9M): Likewise.
(v6): Add MASK_V9{C,D,E,V,M}.
(v6notlet): Likewise.
(v7): Likewise.
(v8): Likewise.
(v9): Likewise.
(v9andleon): Likewise.
(v9a): Likewise.
(v9b): Likewise.
(v9c): Define.
(v9d): Likewise.
(v9e): Likewise.
(v9v): Likewise.
(v9m): Likewise.
(sparc_opcode_archs): Add entry for v9{c,d,e,v,m}.
Since x86 elf_*_check_relocs is called after all symbols have been
resolved, there is no need to check undefined symbols for relocations
against IFUNC symbols.
bfd/
* elf32-i386.c (elf_i386_check_relocs): Don't check undefined
symbols for relocations against IFUNC symbols.
* elf64-x86-64.c (elf_x86_64_check_relocs): Likewise.
ld/
* testsuite/ld-i386/i386.exp: Run pr19636-2e-nacl.
* testsuite/ld-i386/pr19636-2e.d: Skip for NaCl targets.
Remove .rel.plt section.
* testsuite/ld-i386/pr19636-2e-nacl.d: New file.
This was broken by 4ade44b727,
which changed the calculation to use the .rela.plt linker section
instead of its output section - thus skipping .rela.iplt .
Fix the calculations to include it.
bfd/ChangeLog:
* elf32-s390.c (elf_s390_finish_dynamic_sections): Include
.rela.iplt in DT_PLTRELSZ.
* elf64-s390.c (elf_s390_finish_dynamic_sections): Likewise,
for DT_PLTRELSZ and DT_RELASZ as well.
Don't do anything special with non-loaded, non-alloced sections.
In particular, any relocs in such sections should not affect GOT
and PLT reference counting (ie. we don't allow them to create GOT
or PLT entries), there's no possibility or desire to optimize TLS
relocs, and there's not much point in propagating relocs to shared
libs that the dynamic linker won't relocate.
* elf32-i386.c (elf_i386_check_relocs): Skip relocations in
non-loaded, non-alloced sections.
* elf64-x86-64.c (elf_x86_64_check_relocs): Likewise.
