x86: don't recognize bnd<N> as registers without CpuMPX

This is just like for all other extended/optional register sets.

x86: x87-related adjustments

Neither 287 wrt 8087 nor 387 wrt 287 are proper supersets - in each case
some insns get removed from the ISA (they become NOPs, but code intended
for newer co-processors should not use them).

Furthermore with .no87, ST should not be recognized as a register name.

x86: fix indentation in build_modrm_byte()

The VEX3SOURCES code was (originally) written with just space
indentation, which is not in line with general coding style as well as
the style later in the function.

x86: move and fold common code in build_modrm_byte()

The source and reg_slot calculations in the VEX3SOURCES only depend on
the number of immediate operands.

x86: drop VexImmExt

It's only used in assertions, and hence not really needed for correct
code generation.

x86: tighten assertion in build_modrm_byte()

All VEX3SOURCES cases should have VexW set, and all should have a SIMD
register destination.

x86: drop dead code from build_modrm_byte()

There are no templates with VexImmExt and ImmExt set at the same time.
There are also no VEX3SOURCES templates with CpuFMA. I assume both are
left-overs from the implementation of an early specification which was
later revised.

Automatic date update in version.in

[ARM] FDPIC: Update testsuite so that many tests pass with arm*-uclinuxfdpiceabi.

2018-04-25  Christophe Lyon  <christophe.lyon@st.com>

binutils/
* testsuite/binutils-all/elfedit-2.d: Accept arm*-*-uclinuxfdpiceabi.
* testsuite/binutils-all/elfedit-3.d: Likewise.
* testsuite/binutils-all/objcopy.exp: Likewise.
* testsuite/binutils-all/strip-3.d: Likewise.
* testsuite/lib/binutils-common.exp: Likewise.

ld/
* testsuite/ld-arm/export-class.exp: Accept arm*-*-uclinuxfdpiceabi.
* testsuite/ld-discard/discard.exp: Likewise.
* testsuite/ld-elf/binutils.exp: Likewise.
* testsuite/ld-elf/commonpage1.d: Likewise.
* testsuite/ld-elf/compress1c.d: Likewise.
* testsuite/ld-elf/compressed1b.d: Likewise.
* testsuite/ld-elf/compressed1c.d: Likewise.
* testsuite/ld-elf/compressed1e.d: Likewise.
* testsuite/ld-elf/dynamic1.d: Likewise.
* testsuite/ld-elf/dynsym1.d: Likewise.
* testsuite/ld-elf/ehdr_start-missing.d: Likewise.
* testsuite/ld-elf/ehdr_start-shared.d: Likewise.
* testsuite/ld-elf/ehdr_start-userdef.d: Likewise.
* testsuite/ld-elf/ehdr_start-weak.d: Likewise.
* testsuite/ld-elf/ehdr_start.d: Likewise.
* testsuite/ld-elf/exclude3b.d: Likewise.
* testsuite/ld-elf/export-class.exp: Likewise.
* testsuite/ld-elf/global1.d: Likewise.
* testsuite/ld-elf/hash.d: Likewise.
* testsuite/ld-elf/header.d: Likewise.
* testsuite/ld-elf/loadaddr1.d: Likewise.
* testsuite/ld-elf/loadaddr2.d: Likewise.
* testsuite/ld-elf/loadaddr3a.d: Likewise.
* testsuite/ld-elf/loadaddr3b.d: Likewise.
* testsuite/ld-elf/local1.d: Likewise.
* testsuite/ld-elf/maxpage1.d: Likewise.
* testsuite/ld-elf/maxpage2.d: Likewise.
* testsuite/ld-elf/maxpage3a.d: Likewise.
* testsuite/ld-elf/mbind1a.d: Likewise.
* testsuite/ld-elf/mbind1b.d: Likewise.
* testsuite/ld-elf/mbind1c.d: Likewise.
* testsuite/ld-elf/multibss1.d: Likewise.
* testsuite/ld-elf/noload-2.d: Likewise.
* testsuite/ld-elf/now-1.d: Likewise.
* testsuite/ld-elf/now-2.d: Likewise.
* testsuite/ld-elf/now-3.d: Likewise.
* testsuite/ld-elf/now-4.d: Likewise.
* testsuite/ld-elf/pie.d: Likewise.
* testsuite/ld-elf/pr12975.d: Likewise.
* testsuite/ld-elf/pr13177.d: Likewise.
* testsuite/ld-elf/pr13195.d: Likewise.
* testsuite/ld-elf/pr16322.d: Likewise.
* testsuite/ld-elf/pr16498a.d: Likewise.
* testsuite/ld-elf/pr16498b.d: Likewise.
* testsuite/ld-elf/pr17615.d: Likewise.
* testsuite/ld-elf/pr19162.d: Likewise.
* testsuite/ld-elf/pr19539.d: Likewise.
* testsuite/ld-elf/pr19617a.d: Likewise.
* testsuite/ld-elf/pr19617b.d: Likewise.
* testsuite/ld-elf/pr19617c.d: Likewise.
* testsuite/ld-elf/pr19698.d: Likewise.
* testsuite/ld-elf/pr19789.d: Likewise.
* testsuite/ld-elf/pr20513c.d: Likewise.
* testsuite/ld-elf/pr20513d.d: Likewise.
* testsuite/ld-elf/pr21384.d: Likewise.
* testsuite/ld-elf/pr21389a.d: Likewise.
* testsuite/ld-elf/pr21389b.d: Likewise.
* testsuite/ld-elf/pr21389c.d: Likewise.
* testsuite/ld-elf/pr21562a.d: Likewise.
* testsuite/ld-elf/pr21562b.d: Likewise.
* testsuite/ld-elf/pr21562c.d: Likewise.
* testsuite/ld-elf/pr21562d.d: Likewise.
* testsuite/ld-elf/pr21562e.d: Likewise.
* testsuite/ld-elf/pr21562f.d: Likewise.
* testsuite/ld-elf/pr21562g.d: Likewise.
* testsuite/ld-elf/pr21562h.d: Likewise.
* testsuite/ld-elf/pr21562i.d: Likewise.
* testsuite/ld-elf/pr21562j.d: Likewise.
* testsuite/ld-elf/pr21562k.d: Likewise.
* testsuite/ld-elf/pr21562l.d: Likewise.
* testsuite/ld-elf/pr21562m.d: Likewise.
* testsuite/ld-elf/pr21562n.d: Likewise.
* testsuite/ld-elf/pr21903a.d: Likewise.
* testsuite/ld-elf/pr21903b.d: Likewise.
* testsuite/ld-elf/pr21903d.d: Likewise.
* testsuite/ld-elf/pr22269a.d: Likewise.
* testsuite/ld-elf/pr22269b.d: Likewise.
* testsuite/ld-elf/pr22393-1a.d: Likewise.
* testsuite/ld-elf/pr22393-1b.d: Likewise.
* testsuite/ld-elf/pr22393-1c.d: Likewise.
* testsuite/ld-elf/pr22393-1d.d: Likewise.
* testsuite/ld-elf/pr22393-1e.d: Likewise.
* testsuite/ld-elf/pr22393-1f.d: Likewise.
* testsuite/ld-elf/pr22423.d: Likewise.
* testsuite/ld-elf/rpath-1.d: Likewise.
* testsuite/ld-elf/rpath-2.d: Likewise.
* testsuite/ld-elf/runpath-1.d: Likewise.
* testsuite/ld-elf/runpath-2.d: Likewise.
* testsuite/ld-elf/seg.d: Likewise.
* testsuite/ld-elf/sizeofb.d: Likewise.
* testsuite/ld-elf/startofb.d: Likewise.
* testsuite/ld-elf/strtab.d: Likewise.
* testsuite/ld-elf/textaddr1.d: Likewise.
* testsuite/ld-elf/textaddr2.d: Likewise.
* testsuite/ld-elf/textaddr3.d: Likewise.
* testsuite/ld-elf/textaddr4.d: Likewise.
* testsuite/ld-elf/textaddr5.d: Likewise.
* testsuite/ld-elf/textaddr6.d: Likewise.
* testsuite/ld-elf/textaddr7.d: Likewise.
* testsuite/ld-elf/tls.exp: Likewise.
* testsuite/ld-elf/tls_common.exp: Likewise.
* testsuite/ld-elf/unknown2.d: Likewise.
* testsuite/ld-gc/abi-note.d: Likewise.
* testsuite/ld-gc/pr11218.d: Likewise.
* testsuite/ld-gc/pr19167.d: Likewise.
* testsuite/ld-gc/pr20022.d: Likewise.
* testsuite/ld-gc/start.d: Likewise.
* testsuite/ld-gc/stop.d: Likewise.
* testsuite/ld-scripts/phdrs2.exp: Likewise.
* testsuite/ld-scripts/rgn-at5.d: Likewise.
* testsuite/ld-undefined/entry-3.d: Likewise.
* testsuite/ld-undefined/entry-4.d: Likewise.

[ARM] FDPIC: Implement Thumb-only PLT for FDPIC.

2018-04-25  Christophe Lyon  <christophe.lyon@st.com>
Mickaël Guêné  <mickael.guene@st.com>

bfd/
* elf32-arm.c (elf32_arm_fdpic_thumb_plt_entry): New.
(elf32_arm_plt_needs_thumb_stub_p): Handle thumb-only case.
(elf32_arm_populate_plt_entry): Likewise.
(elf32_arm_output_plt_map_1): Likewise.
(elf32_arm_output_arch_local_syms): Likewise.

ld/testsuite/
* arm-elf.exp: Execute the new FDPIC Thumb-only tests.
* fdpic-main-m.d: New test.
* fdpic-main-m.s: New.
* fdpic-main-m.sym: New.
* fdpic-shared-m.d: New test.
* fdpic-shared-m.s: New.
* fdpic-shared-m.sym: New.

[ARM] FDPIC: New tests.

2018-04-25  Christophe Lyon  <christophe.lyon@st.com>
Mickaël Guêné  <mickael.guene@st.com>

ld/
* testsuite/ld-arm/arm-elf.exp: Execute the new FDPIC tests.
* testsuite/ld-arm/fdpic-main.d: New test.
* testsuite/ld-arm/fdpic-main.ld: New.
* testsuite/ld-arm/fdpic-main.r: New.
* testsuite/ld-arm/fdpic-main.s: New.
* testsuite/ld-arm/fdpic-main.sym: New.
* testsuite/ld-arm/fdpic-shared.d: New test.
* testsuite/ld-arm/fdpic-shared.ld: New.
* testsuite/ld-arm/fdpic-shared.r: New.
* testsuite/ld-arm/fdpic-shared.s: New.
* testsuite/ld-arm/fdpic-shared.sym: New.

[ARM] FDPIC: Fix ld testcase not to conflict with uclibc's includes.

2018-04-25  Christophe Lyon  <christophe.lyon@st.com>
Mickaël Guêné  <mickael.guene@st.com>

ld/
* testsuite/ld-elf/pr2404b.c (main): Rename time variable into
time1.

[ARM] FDPIC: Make _GLOBAL_OFFSET_TABLE_ a relative symbol

2018-04-25  Christophe Lyon  <christophe.lyon@st.com>
Mickaël Guêné  <mickael.guene@st.com>

bfd/
* elf32-arm.c (elf32_arm_finish_dynamic_symbol): Handle
_GLOBAL_OFFSET_TABLE_ in FDPIC mode.

[ARM] FDPIC: Translate R_ARM_TARGET2 relocation into R_ARM_GOT32 relocation for FDPIC platform

2018-04-25  Christophe Lyon  <christophe.lyon@st.com>
Mickaël Guêné  <mickael.guene@st.com>

bfd/
* elf32-arm.c (bfd_elf32_arm_set_target_params): Handle FDPIC case
for R_ARM_TARGET2.

[ARM] FDPIC: Add stack segment

The size of the stack segment defaults to 32KB, and can be overridden
by defining the __stacksize symbol.

2018-04-25  Christophe Lyon  <christophe.lyon@st.com>
Mickaël Guêné  <mickael.guene@st.com>

bfd/
* elf32-arm.c (DEFAULT_STACK_SIZE): New.
(elf32_arm_always_size_sections): Create stack segment.

[ARM] Add TLS relocations for FDPIC.

Define and handle TLS relocations for FDPIC in BFD and gas.

In gas, the new relocations are rejected if the --fdpic option was not
specified.

We also define the __tdata_start symbol to mark the start of the
.tdata section. This allows FDPIC static binaries to find the start of
.tdata section, since phdr->p_vaddr of TLS segment is not a valid
value for FDPIC.

2018-04-25  Christophe Lyon  <christophe.lyon@st.com>
Mickaël Guêné  <mickael.guene@st.com>

bfd/:
* bfd-in2.h (BFD_RELOC_ARM_TLS_GD32_FDPIC)
(BFD_RELOC_ARM_TLS_LDM32_FDPIC, BFD_RELOC_ARM_TLS_IE32_FDPIC): New
relocations.
* elf32-arm.c (elf32_arm_howto_table_2): Add R_ARM_TLS_GD32_FDPIC,
R_ARM_TLS_LDM32_FDPIC, R_ARM_TLS_IE32_FDPIC relocations.
(elf32_arm_reloc_map): Add R_ARM_TLS_GD32_FDPIC,
R_ARM_TLS_LDM32_FDPIC, R_ARM_TLS_IE32_FDPIC.
(struct elf32_arm_link_hash_table): Update comment.
(elf32_arm_final_link_relocate): Handle TLS FDPIC relocations.
(IS_ARM_TLS_RELOC): Likewise.
(elf32_arm_check_relocs): Likewise.
(allocate_dynrelocs_for_symbol): Likewise.
(elf32_arm_size_dynamic_sections): Update comment.
* reloc.c: Add BFD_RELOC_ARM_TLS_GD32_FDPIC,
BFD_RELOC_ARM_TLS_LDM32_FDPIC, BFD_RELOC_ARM_TLS_IE32_FDPIC.

gas/
* config/tc-arm.c (reloc_names): Add TLSGD_FDPIC, TLSLDM_FDPIC,
GOTTPOFF_FDIC relocations.
(md_apply_fix): Handle the new TLS FDPIC relocations.
(tc_gen_reloc): Likewise.
(arm_fix_adjustable): Likewise.

include/
* elf/arm.h: Add R_ARM_TLS_GD32_FDPIC, R_ARM_TLS_LDM32_FDPIC,
R_ARM_TLS_IE32_FDPIC.

ld/
* scripttempl/elf.sc: Define __tdata_start for .tdata section.

[ARM] Implement PLT for FDPIC.

FDPIC requires special PLT entries, defined in this patch.

Note that lazy binding is not supported because of a race condition
for lack of an atomic 64-bits load instruction.

2018-04-25  Christophe Lyon  <christophe.lyon@st.com>
Mickaël Guêné  <mickael.guene@st.com>

bfd/
* elf32-arm.c (elf32_arm_fdpic_plt_entry): New.
(elf32_arm_create_dynamic_sections): Handle FDPIC.
(elf32_arm_allocate_plt_entry): Likewise.
(elf32_arm_populate_plt_entry): Likewise.
(elf32_arm_output_plt_map_1): Likewise.

[ARM] Implement FDPIC relocations.

This is the main BFD patch, that enables the linker to actually handle
the FDPIC relocations.

2018-04-25  Christophe Lyon  <christophe.lyon@st.com>
Mickaël Guêné  <mickael.guene@st.com>

bfd/
* elf32-arm.c (struct fdpic_local): New.
(elf_arm_obj_tdata): Add local_fdpic_cnts field.
(elf32_arm_local_fdpic_cnts): New.
(struct fdpic_global): New.
(elf32_arm_link_hash_entry): Add fdpic_cnts field.
(elf32_arm_link_hash_table): Add srofixup field.
(arm_elf_add_rofixup): New.
(arm_elf_fill_funcdesc): New.
(elf32_arm_link_hash_newfunc): Handle fdpic_cnts.
(elf32_arm_allocate_local_sym_info): Likewise.
(create_got_section): Create .rofixup section.
(elf32_arm_copy_indirect_symbol): Handle fdpic_cnts.
(bfd_elf32_arm_set_target_params): Handle FDPIC.
(elf32_arm_final_link_relocate): Likewise.
(elf32_arm_check_relocs): Likewise.
(allocate_dynrelocs_for_symbol): Likewise.
(elf32_arm_size_dynamic_sections): Likewise.
(elf32_arm_finish_dynamic_sections): Likewise.
(elf32_arm_output_arch_local_syms): Likewise.
(elf32_arm_fdpic_omit_section_dynsym): New.

ld/
* emulparams/armelf_linux_fdpiceabi.sh: Add .rofixup section.

[ARM] Add FDPIC relocations definitions

Add FDPIC relocation definitions in BFD and gas.
Gas rejects them if the --fdpic option was not specified.

2018-04-25  Christophe Lyon  <christophe.lyon@st.com>
Mickaël Guêné  <mickael.guene@st.com>

bfd/
* bfd-in2.c (BFD_RELOC_ARM_GOTFUNCDESC)
(BFD_RELOC_ARM_GOTOFFFUNCDESC, BFD_RELOC_ARM_FUNCDESC)
(BFD_RELOC_ARM_FUNCDESC_VALUE): New.
* elf32-arm.c (elf32_arm_howto_table_2): Add R_ARM_GOTFUNCDESC,
R_ARM_GOTOFFFUNCDESC, R_ARM_FUNCDESC, R_ARM_FUNCDESC_VALUE.
(elf32_arm_howto_from_type): Take new members of
elf32_arm_howto_table_2 into account.
(elf32_arm_reloc_map): Add BFD_RELOC_ARM_GOTFUNCDESC,
BFD_RELOC_ARM_GOTOFFFUNCDESC, BFD_RELOC_ARM_FUNCDESC,
BFD_RELOC_ARM_FUNCDESC_VALUE.
* reloc.c: Add BFD_RELOC_ARM_GOTFUNCDESC,
BFD_RELOC_ARM_GOTOFFFUNCDESC, BFD_RELOC_ARM_FUNCDESC,
BFD_RELOC_ARM_FUNCDESC_VALUE.

gas/
* config/tc-arm.c (reloc_names): Add gotfuncdesc, gotofffuncdesc,
funcdesc.
(md_apply_fix): Support the new relocations.
(tc_gen_reloc): Likewise.
* testsuite/gas/arm/reloc-fdpic.d: New.
* testsuite/gas/arm/reloc-fdpic.s: New.

include/
* elf/arm.h (R_ARM_GOTFUNCDESC, R_ARM_GOTOFFFUNCDESC)
(R_ARM_FUNCDESC)
(R_ARM_FUNCDESC_VALUE): Define new relocations.

[ARM] Add FDPIC OSABI flag support.

ELF files targetting ARM FDPIC use the ELFOSABI_ARM_FDPIC flag.
Set it appropriately in file generators (eg. gas), and handle it in
readers (eg. readelf).

2018-04-25  Christophe Lyon  <christophe.lyon@st.com>
Mickaël Guêné  <mickael.guene@st.com>

bfd/
* elf32-arm.c (elf32_arm_print_private_bfd_data): Support
EF_ARM_PIC and ELFOSABI_ARM_FDPIC.
(elf32_arm_post_process_headers): Support ELFOSABI_ARM_FDPIC.
(ELF_OSABI): Define to ELFOSABI_ARM_FDPIC.

binutils/
* readelf.c (decode_ARM_machine_flags): Support EF_ARM_PIC.
(get_osabi_name): Support ELFOSABI_ARM_FDPIC.

gas/
* config/tc-arm.c (arm_fdpic): New.
(elf32_arm_target_format): Support FDPIC.
(OPTION_FDPIC): New.
(md_longopts): Support FDPIC.
(md_parse_option): Likewise.
(md_show_usage): Likewise.

include/
* elf/arm.h (EF_ARM_FDPIC): New.

[ARM] Add armelf_linux_fdpiceabi and armelfb_linux_fdpiceabi BFD backends

Initial definition of these new backends.

2018-04-25  Christophe Lyon  <christophe.lyon@st.com>
Mickaël Guêné  <mickael.guene@st.com>

bfd/
* config.bfd (arm*-*-linux-*): Add arm_elf32_fdpic_be_vec and
arm_elf32_fdpic_le_vec to targ_selvecs. Accept
arm*-*-uclinuxfdpiceabi.
* configure.ac: Add support for arm_elf32_fdpic_be_vec and
arm_elf32_fdpic_le_vec.
* configure: Regenerate.
* elf32-arm.c (struct elf32_arm_link_hash_table): Add fdpic_p.
(elf32_arm_link_hash_table_create): Initialize fdpic_p.
(TARGET_LITTLE_SYM, TARGET_LITTLE_NAME, TARGET_BIG_SYM)
(TARGET_BIG_NAME, elf_match_priority): Define for FDPIC targets.
(elf32_arm_fdpic_link_hash_table_create): New.
* targets.c (_bfd_target_vector): Add arm_elf32_fdpic_be_vec and
arm_elf32_fdpic_le_vec.

ld/
* Makefile.am (ALL_EMULATION_SOURCES): Add
earmelf_linux_fdpiceabi.c and earmelfb_linux_fdpiceabi.c.
(earmelf_linux_fdpiceabi.c, earmelfb_linux_fdpiceabi.c): New rules.
* Makefile.in: Regenerate.
* configure.tgt (arm*-*-uclinuxfdpiceabi): Handle new target.
* emulparams/armelf_linux_fdpiceabi.sh: New.
* emulparams/armelfb_linux_fdpiceabi.sh: New.

Fix new inferior events output

Since f67c0c917150 ("Enable 'set print inferior-events' and improve
detach/fork/kill/exit messages"), when detaching a remote process, we
get, for detach against a remote target:

 (gdb) detach
 Detaching from program: ...., process 5388
 Ending remote debugging.
 [Inferior 1 (Thread 5388.5388) detached]
              ^^^^^^^^^^^^^^^^

That is incorrect, for it is printing a thread id as string while we
should be printing the process id instead.  I.e., either one of:

 [Inferior 1 (process 5388) detached]
 [Inferior 1 (Remote target) detached]

depending on remote stub support for the multi-process extensions.

Similarly, after killing a process, we're printing thread ids while we
should be printing process ids.  E.g., on native GNU/Linux:

 (gdb) k
 Kill the program being debugged? (y or n) y
 [Inferior 1 (Thread 0x7ffff7faa8c0 (LWP 30721)) has been killed]
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

while it should have been:

 Kill the program being debugged? (y or n) y
 [Inferior 1 (process 30721) has been killed]
              ^^^^^^^^^^^^^

There's a wording inconsistency between detach and kill:

 [Inferior 1 (process 30721) has been killed]
 [Inferior 1 (process 30721) detached]

Given we were already saying "detached" instead of "has been
detached", and we used to say just "exited", and given that the "has
been" doesn't really add any information, this commit changes the
message to just "killed":

 [Inferior 1 (process 30721) killed]

gdb/ChangeLog:
2018-04-25  Pedro Alves  <palves@redhat.com>

* infcmd.c (kill_command): Print the pid as string, not the whole
thread's ptid.  Add comment.  s/has been killed/killed/ in output
message.
* remote.c (remote_detach_1): Print the pid as string, not the
whole thread's ptid.

gdb/testsuite/ChangeLog:
2018-04-25  Pedro Alves  <palves@redhat.com>

* gdb.base/hook-stop.exp: Expect "killed" instead of "has been
killed".
* gdb.base/kill-after-signal.exp: Likewise.
* gdb.threads/kill.exp: Likewise.

x86: drop redundant AVX512VL shift templates

These were wrongly left in place by commit ed438a93f1 ("x86: fold
certain AVX512 rotate and shift templates").

Fix the mask for the sqrdml(a|s)h instructions.

Rn is supposed to have a 5 bit range but instead was given 4 bits
causing these instructions to disassemble as unknown instructions.

opcodes/

* aarch64-tbl.h (sqrdmlah, sqrdmlsh): Fix masks.

gas/

* testsuite/gas/aarch64/rdma.s: Test for larger register numbers.
* testsuite/gas/aarch64/rdma.d: Update results.
* testsuite/gas/aarch64/rdma-directive.d: Likewise.

Updated Spanish translation for the gas directory.

Silence gcc-8 warnings

This seems to work with gcc-8 and a bunch of prior gcc versions I tested.

* elf-linux-core.h: Disable gcc-8 string truncation warning.
* elf.c (elfcore_write_prpsinfo): Likewise.

Fix bug with relocation addends and merge sections with --icf.

During --icf processing, gold was incorrectly processing the relocation
addend for references to items in a merge section. PC-relative references
and other forms of reference with a biased base address require a
non-section local symbol, where the addend is purely the bias.

gold/
PR gold/20642
PR gold/22820
* gc.h (gc_process_relocs): Flag STT_SECTION symbols in symvec.
* icf.cc (get_section_contents): For merge sections, ignore the
addend for relocations against non-section symbols.

Remove arm-aout and arm-coff support

This also removes arm-netbsd (not arm-netbsdelf!), arm-openbsd, and
arm-riscix.  Those targets weren't on the obsolete list but they are
all aout, and it doesn't make all that much sense to remove arm-aout
without removing them too.

bfd/
* Makefile.am: Remove arm-aout and arm-coff support.
* config.bfd: Likewise.
* configure.ac: Likewise.
* targets.c: Likewise.
* aout-arm.c: Delete.
* armnetbsd.c: Delete.
* riscix.c: Delete.
* Makefile.in: Regenerate.
* configure: Regenerate.
* po/SRC-POTFILES.in: Regenerate.
binutils/
* testsuite/binutils-all/arm/objdump.exp: Remove arm-aout and
arm-coff support.
* testsuite/binutils-all/objcopy.exp: Likewise.
* testsuite/lib/binutils-common.exp: Likewise.
gas/
* Makefile.am: Remove arm-aout and arm-coff support.
* config/tc-arm.c: Likewise.
* config/tc-arm.h: Likewise.
* configure.tgt: Likewise.
* testsuite/gas/aarch64/codealign.d: Likewise.
* testsuite/gas/aarch64/mapping.d: Likewise.
* testsuite/gas/aarch64/mapping2.d: Likewise.
* testsuite/gas/arm/adds-thumb1-reloc-local-armv7-m.d: Likewise.
* testsuite/gas/arm/adds-thumb1-reloc-local.d: Likewise.
* testsuite/gas/arm/addsw-bad.d: Likewise.
* testsuite/gas/arm/align.d: Likewise.
* testsuite/gas/arm/align64.d: Likewise.
* testsuite/gas/arm/arch7.d: Likewise.
* testsuite/gas/arm/arch7a-mp.d: Likewise.
* testsuite/gas/arm/arch7em.d: Likewise.
* testsuite/gas/arm/archv8m-main-dsp-5.d: Likewise.
* testsuite/gas/arm/arm-it-auto-2.d: Likewise.
* testsuite/gas/arm/arm-it-auto-3.d: Likewise.
* testsuite/gas/arm/arm-it-auto.d: Likewise.
* testsuite/gas/arm/arm-it-bad-2.d: Likewise.
* testsuite/gas/arm/arm-it.d: Likewise.
* testsuite/gas/arm/armv7e-m+fpv5-d16.d: Likewise.
* testsuite/gas/arm/armv7e-m+fpv5-sp-d16.d: Likewise.
* testsuite/gas/arm/armv8-2-fp16-scalar-thumb.d: Likewise.
* testsuite/gas/arm/armv8-2-fp16-scalar.d: Likewise.
* testsuite/gas/arm/armv8-2-fp16-simd-thumb.d: Likewise.
* testsuite/gas/arm/armv8-2-fp16-simd.d: Likewise.
* testsuite/gas/arm/armv8-a+crypto.d: Likewise.
* testsuite/gas/arm/armv8-a+fp.d: Likewise.
* testsuite/gas/arm/armv8-a+ras.d: Likewise.
* testsuite/gas/arm/armv8-a+rdma-warning.d: Likewise.
* testsuite/gas/arm/armv8-a+rdma.d: Likewise.
* testsuite/gas/arm/armv8-a+simd.d: Likewise.
* testsuite/gas/arm/armv8-a-barrier-thumb.d: Likewise.
* testsuite/gas/arm/armv8-r+fp.d: Likewise.
* testsuite/gas/arm/armv8-r+simd.d: Likewise.
* testsuite/gas/arm/armv8-r-barrier-thumb.d: Likewise.
* testsuite/gas/arm/armv8_1-a+simd.d: Likewise.
* testsuite/gas/arm/armv8_2+rdma.d: Likewise.
* testsuite/gas/arm/armv8_2-a.d: Likewise.
* testsuite/gas/arm/armv8_3-a-fp.d: Likewise.
* testsuite/gas/arm/armv8_3-a-simd.d: Likewise.
* testsuite/gas/arm/armv8a-automatic-hlt.d: Likewise.
* testsuite/gas/arm/armv8a-automatic-lda.d: Likewise.
* testsuite/gas/arm/attr-syntax.d: Likewise.
* testsuite/gas/arm/automatic-bw.d: Likewise.
* testsuite/gas/arm/automatic-cbz.d: Likewise.
* testsuite/gas/arm/automatic-clrex.d: Likewise.
* testsuite/gas/arm/automatic-lda.d: Likewise.
* testsuite/gas/arm/automatic-ldaex.d: Likewise.
* testsuite/gas/arm/automatic-ldaexb.d: Likewise.
* testsuite/gas/arm/automatic-ldrex.d: Likewise.
* testsuite/gas/arm/automatic-ldrexd.d: Likewise.
* testsuite/gas/arm/automatic-movw.d: Likewise.
* testsuite/gas/arm/automatic-sdiv.d: Likewise.
* testsuite/gas/arm/automatic-strexb.d: Likewise.
* testsuite/gas/arm/barrier-bad-thumb.d: Likewise.
* testsuite/gas/arm/barrier-bad.d: Likewise.
* testsuite/gas/arm/barrier-thumb.d: Likewise.
* testsuite/gas/arm/barrier.d: Likewise.
* testsuite/gas/arm/bignum1.d: Likewise.
* testsuite/gas/arm/blx-bad.d: Likewise.
* testsuite/gas/arm/blx-bl-convert.d: Likewise.
* testsuite/gas/arm/blx-local.s: Likewise.
* testsuite/gas/arm/crc32-armv8-a-bad.d: Likewise.
* testsuite/gas/arm/crc32-armv8-a.d: Likewise.
* testsuite/gas/arm/crc32-armv8-r-bad.d: Likewise.
* testsuite/gas/arm/crc32-armv8-r.d: Likewise.
* testsuite/gas/arm/dis-data.d: Likewise.
* testsuite/gas/arm/dis-data2.d: Likewise.
* testsuite/gas/arm/dis-data3.d: Likewise.
* testsuite/gas/arm/eabi_attr_1.d: Likewise.
* testsuite/gas/arm/fp-save.d: Likewise.
* testsuite/gas/arm/group-reloc-alu-encoding-bad.d: Likewise.
* testsuite/gas/arm/group-reloc-alu-parsing-bad.d: Likewise.
* testsuite/gas/arm/group-reloc-alu.d: Likewise.
* testsuite/gas/arm/group-reloc-ldc-encoding-bad.d: Likewise.
* testsuite/gas/arm/group-reloc-ldc-parsing-bad.d: Likewise.
* testsuite/gas/arm/group-reloc-ldc.d: Likewise.
* testsuite/gas/arm/group-reloc-ldr-encoding-bad.d: Likewise.
* testsuite/gas/arm/group-reloc-ldr-parsing-bad.d: Likewise.
* testsuite/gas/arm/group-reloc-ldr.d: Likewise.
* testsuite/gas/arm/group-reloc-ldrs-encoding-bad.d: Likewise.
* testsuite/gas/arm/group-reloc-ldrs-parsing-bad.d: Likewise.
* testsuite/gas/arm/group-reloc-ldrs.d: Likewise.
* testsuite/gas/arm/insn-error-a.d: Likewise.
* testsuite/gas/arm/insn-error-t.d: Likewise.
* testsuite/gas/arm/inst-po-2.d: Likewise.
* testsuite/gas/arm/inst-po-3.d: Likewise.
* testsuite/gas/arm/inst-po-be.d: Likewise.
* testsuite/gas/arm/inst-po.d: Likewise.
* testsuite/gas/arm/ldconst.d: Likewise.
* testsuite/gas/arm/ldgesb-bad.d: Likewise.
* testsuite/gas/arm/ldgesh-bad.d: Likewise.
* testsuite/gas/arm/ldst-offset0.d: Likewise.
* testsuite/gas/arm/local_function.d: Likewise.
* testsuite/gas/arm/local_label_coff.d: Likewise.
* testsuite/gas/arm/local_label_elf.d: Likewise.
* testsuite/gas/arm/mapping.d: Likewise.
* testsuite/gas/arm/mapping2.d: Likewise.
* testsuite/gas/arm/mapping3.d: Likewise.
* testsuite/gas/arm/mapping4.d: Likewise.
* testsuite/gas/arm/mapshort-elf.d: Likewise.
* testsuite/gas/arm/mask_1-armv8-a.d: Likewise.
* testsuite/gas/arm/mask_1-armv8-r.d: Likewise.
* testsuite/gas/arm/movs-thumb1-reloc-local-armv7-m.d: Likewise.
* testsuite/gas/arm/movs-thumb1-reloc-local.d: Likewise.
* testsuite/gas/arm/movw-local.d: Likewise.
* testsuite/gas/arm/mrs-msr-thumb-v6t2.d: Likewise.
* testsuite/gas/arm/mrs-msr-thumb-v7-m.d: Likewise.
* testsuite/gas/arm/mrs-msr-thumb-v7e-m.d: Likewise.
* testsuite/gas/arm/msr-imm-bad.d: Likewise.
* testsuite/gas/arm/msr-reg-bad.d: Likewise.
* testsuite/gas/arm/msr-reg-thumb.d: Likewise.
* testsuite/gas/arm/nomapping.d: Likewise.
* testsuite/gas/arm/nops.d: Likewise.
* testsuite/gas/arm/pic.d: Likewise.
* testsuite/gas/arm/pinsn.d: Likewise.
* testsuite/gas/arm/plt-1.d: Likewise.
* testsuite/gas/arm/pr21458.d: Likewise.
* testsuite/gas/arm/pr9722.d: Likewise.
* testsuite/gas/arm/strex-t.d: Likewise.
* testsuite/gas/arm/t2-branch-global.d: Likewise.
* testsuite/gas/arm/target-reloc-1.d: Likewise.
* testsuite/gas/arm/thumb-b-bad.d: Likewise.
* testsuite/gas/arm/thumb-w-bad.d: Likewise.
* testsuite/gas/arm/thumb-w-good.d: Likewise.
* testsuite/gas/arm/thumb.d: Likewise.
* testsuite/gas/arm/thumb2_it.d: Likewise.
* testsuite/gas/arm/thumb2_it_auto.d: Likewise.
* testsuite/gas/arm/thumb2_it_search.d: Likewise.
* testsuite/gas/arm/thumb2_ldmstm.d: Likewise.
* testsuite/gas/arm/thumb2_ldr_immediate_armv6.d: Likewise.
* testsuite/gas/arm/thumb2_ldr_immediate_armv6t2.d: Likewise.
* testsuite/gas/arm/thumb2_ldr_immediate_highregs_armv6t2.d: Likewise.
* testsuite/gas/arm/thumb2_pool.d: Likewise.
* testsuite/gas/arm/thumb2_vpool.d: Likewise.
* testsuite/gas/arm/thumb2_vpool_be.d: Likewise.
* testsuite/gas/arm/thumb32.d: Likewise.
* testsuite/gas/arm/thumbver.d: Likewise.
* testsuite/gas/arm/tls.d: Likewise.
* testsuite/gas/arm/tls_vxworks.d: Likewise.
* testsuite/gas/arm/undefined.d: Likewise.
* testsuite/gas/arm/undefined_coff.d: Likewise.
* testsuite/gas/arm/unwind.d: Likewise.
* testsuite/gas/arm/v4bx.d: Likewise.
* testsuite/gas/arm/vcmp-noprefix-imm.d: Likewise.
* testsuite/gas/arm/vcvt-bad.d: Likewise.
* testsuite/gas/arm/vfma1.d: Likewise.
* testsuite/gas/arm/vldconst.d: Likewise.
* testsuite/gas/arm/vldconst_be.d: Likewise.
* testsuite/gas/arm/vldm-arm.d: Likewise.
* testsuite/gas/arm/vldr.d: Likewise.
* testsuite/gas/arm/weakdef-1.d: Likewise.
* testsuite/gas/arm/weakdef-2.d: Likewise.
* config/te-riscix.h: Delete.
* Makefile.in: Regenerate.
* po/POTFILES.in: Regenerate.
ld/
* Makefile.am: Remove arm-aout and arm-coff support.
* configure.tgt: Likewise.
* testsuite/ld-arm/attr-merge-div-00.d: Likewise.
* testsuite/ld-arm/attr-merge-div-01-m3.d: Likewise.
* testsuite/ld-arm/attr-merge-div-01.d: Likewise.
* testsuite/ld-arm/attr-merge-div-02.d: Likewise.
* testsuite/ld-arm/attr-merge-div-10-m3.d: Likewise.
* testsuite/ld-arm/attr-merge-div-10.d: Likewise.
* testsuite/ld-arm/attr-merge-div-11.d: Likewise.
* testsuite/ld-arm/attr-merge-div-12.d: Likewise.
* testsuite/ld-arm/attr-merge-div-120.d: Likewise.
* testsuite/ld-arm/attr-merge-div-20.d: Likewise.
* testsuite/ld-arm/attr-merge-div-21.d: Likewise.
* testsuite/ld-arm/attr-merge-div-22.d: Likewise.
* testsuite/ld-arm/attr-merge-hardfp-use-1.d: Likewise.
* testsuite/ld-arm/attr-merge-hardfp-use-2.d: Likewise.
* testsuite/ld-arm/attr-merge-nosection-1.d: Likewise.
* testsuite/ld-arm/attr-merge-unknown-2.d: Likewise.
* testsuite/ld-arm/attr-merge-unknown-2r.d: Likewise.
* testsuite/ld-arm/attr-merge-unknown-3.d: Likewise.
* testsuite/ld-arm/attr-merge-vfp-1.d: Likewise.
* testsuite/ld-arm/attr-merge-vfp-10.d: Likewise.
* testsuite/ld-arm/attr-merge-vfp-10r.d: Likewise.
* testsuite/ld-arm/attr-merge-vfp-11.d: Likewise.
* testsuite/ld-arm/attr-merge-vfp-11r.d: Likewise.
* testsuite/ld-arm/attr-merge-vfp-12.d: Likewise.
* testsuite/ld-arm/attr-merge-vfp-12r.d: Likewise.
* testsuite/ld-arm/attr-merge-vfp-13.d: Likewise.
* testsuite/ld-arm/attr-merge-vfp-13r.d: Likewise.
* testsuite/ld-arm/attr-merge-vfp-14.d: Likewise.
* testsuite/ld-arm/attr-merge-vfp-14r.d: Likewise.
* testsuite/ld-arm/attr-merge-vfp-1r.d: Likewise.
* testsuite/ld-arm/attr-merge-vfp-2.d: Likewise.
* testsuite/ld-arm/attr-merge-vfp-2r.d: Likewise.
* testsuite/ld-arm/attr-merge-vfp-3.d: Likewise.
* testsuite/ld-arm/attr-merge-vfp-3r.d: Likewise.
* testsuite/ld-arm/attr-merge-vfp-4.d: Likewise.
* testsuite/ld-arm/attr-merge-vfp-4r.d: Likewise.
* testsuite/ld-arm/attr-merge-vfp-5.d: Likewise.
* testsuite/ld-arm/attr-merge-vfp-5r.d: Likewise.
* testsuite/ld-arm/attr-merge-vfp-6.d: Likewise.
* testsuite/ld-arm/attr-merge-vfp-6r.d: Likewise.
* testsuite/ld-arm/attr-merge-vfp-7.d: Likewise.
* testsuite/ld-arm/attr-merge-vfp-7r.d: Likewise.
* testsuite/ld-arm/attr-merge-vfp-8.d: Likewise.
* testsuite/ld-arm/attr-merge-vfp-8r.d: Likewise.
* testsuite/ld-arm/attr-merge-vfp-9.d: Likewise.
* testsuite/ld-arm/attr-merge-vfp-9r.d: Likewise.
* testsuite/ld-arm/attr-merge-wchar-00-nowarn.d: Likewise.
* testsuite/ld-arm/attr-merge-wchar-00.d: Likewise.
* testsuite/ld-arm/attr-merge-wchar-02-nowarn.d: Likewise.
* testsuite/ld-arm/attr-merge-wchar-02.d: Likewise.
* testsuite/ld-arm/attr-merge-wchar-04-nowarn.d: Likewise.
* testsuite/ld-arm/attr-merge-wchar-04.d: Likewise.
* testsuite/ld-arm/attr-merge-wchar-20-nowarn.d: Likewise.
* testsuite/ld-arm/attr-merge-wchar-20.d: Likewise.
* testsuite/ld-arm/attr-merge-wchar-22-nowarn.d: Likewise.
* testsuite/ld-arm/attr-merge-wchar-22.d: Likewise.
* testsuite/ld-arm/attr-merge-wchar-24-nowarn.d: Likewise.
* testsuite/ld-arm/attr-merge-wchar-40-nowarn.d: Likewise.
* testsuite/ld-arm/attr-merge-wchar-40.d: Likewise.
* testsuite/ld-arm/attr-merge-wchar-42-nowarn.d: Likewise.
* testsuite/ld-arm/attr-merge-wchar-44-nowarn.d: Likewise.
* testsuite/ld-arm/attr-merge-wchar-44.d: Likewise.
* testsuite/ld-arm/eabi-hard-float.d: Likewise.
* testsuite/ld-arm/eabi-soft-float-ABI4.d: Likewise.
* testsuite/ld-arm/eabi-soft-float-r.d: Likewise.
* testsuite/ld-arm/eabi-soft-float.d: Likewise.
* testsuite/ld-arm/gc-hidden-1.d: Likewise.
* emulparams/armaoutb.sh: Delete.
* emulparams/armaoutl.sh: Delete.
* emulparams/armcoff.sh: Delete.
* emulparams/armnbsd.sh: Delete.
* emulparams/riscix.sh: Delete.
* scripttempl/armaout.sc: Delete.
* scripttempl/armcoff.sc: Delete.
* scripttempl/riscix.sc: Delete.
* Makefile.in: Regenerate.
* po/BLD-POTFILES.in: Regenerate.

Automatic date update in version.in

Fix internal error caused by conflicting default version definitions.

gold/
PR gold/16504
* dynobj.cc (Versions::symbol_section_contents): Don't set
VERSYM_HIDDEN flag for undefined symbols.
* symtab.cc (Symbol_table::add_from_object): Don't override default
version definition with a different default version.
* symtab.h (Symbol::from_dyn): New method.
* testsuite/plugin_test.c (struct sym_info): Add ver field.
(claim_file_hook): Pass symbol version to plugin API.
(parse_readelf_line): Parse symbol version.
* testsuite/Makefile.am (ver_test_pr16504): New test case.
* testsuite/Makefile.in: Regenerate.
* testsuite/ver_test_pr16504.sh: New test script.
* testsuite/ver_test_pr16504_a.c: New source file.
* testsuite/ver_test_pr16504_a.script: New version script.
* testsuite/ver_test_pr16504_b.c: New source file.
* testsuite/ver_test_pr16504_b.script: New version script.

Enable 'set print inferior-events' and improve detach/fork/kill/exit messages

This patch aims to turn 'set print inferior-events' always on, and do
some cleanup on the messages printed by GDB when various inferior
events happen (attach, detach, fork, kill, exit).

To make sure that the patch is correct, I've tested it with a handful
of combinations of 'set follow-fork-mode', 'set detach-on-fork' and
'set print inferior-events'.  In the end, I decided to make my
hand-made test into an official testcase.  More on that below.

Using the following program as an example:

  #include <unistd.h>
  int main ()
  {
    fork ();
    return 0;
  }

We see the following outputs from the patched GDB:

- With 'set print inferior-events on':

    (gdb) r
    Starting program: a.out
    [Detaching after fork from child process 27749]
    [Inferior 1 (process 27745) exited normally]
    (gdb)

- With 'set print inferior-events off':

    (gdb) r
    Starting program: a.out
    [Inferior 1 (process 27823) exited normally]
    (gdb)

  Comparing this against an unpatched GDB:

- With 'set print inferior-events off' and 'set follow-fork-mode
  child':

    (gdb) r
    Starting program: a.out
    [Inferior 2 (process 5993) exited normally]
    (gdb)

  Compare this against an unpatched GDB:

    (unpatched-gdb) r
    Starting program: a.out
    [New process 5702]
    [Inferior 2 (process 5702) exited normally]
    (unpatched-gdb)

  It is possible to notice that, in this scenario, the patched GDB
  will lose the '[New process %d]' message.

- With 'set print inferior-events on', 'set follow-fork-mode child'
  and 'set detach-on-fork on':

    (gdb) r
    Starting program: a.out
    [Attaching after process 27905 fork to child process 27909]
    [New inferior 2 (process 27909)]
    [Detaching after fork from parent process 27905]
    [Inferior 1 (process 27905) detached]
    [Inferior 2 (process 27909) exited normally]
    (gdb)

  Compare this output with an unpatched GDB, using the same settings:

    (unpatched-gdb) r
    Starting program: a.out
    [New inferior 28033]
    [Inferior 28029 detached]
    [New process 28033]
    [Inferior 2 (process 28033) exited normally]
    [Inferior 28033 exited]
    (unpatched-gdb)

As can be seen above, I've also made a few modifications to messages
that are printed when 'set print inferior-events' is on.  For example,
a few of the messages did not contain the '[' and ']' as
prefix/suffix, which led to a few inconsistencies like:

  Attaching after process 22995 fork to child process 22999.
  [New inferior 22999]
  Detaching after fork from child process 22999.
  [Inferior 22995 detached]
  [Inferior 2 (process 22999) exited normally]

So I took the opportunity and included the square brackets where
applicable.  I have also made the existing messages more uniform, by
always printing "Inferior %d (process %d)..." where applicable.  This
makes it easier to identify the inferior number and the PID number
from the messages.

As suggested by Pedro, the "[Inferior %d exited]" message from
'exit_inferior' has been removed, because it got duplicated when
'inferior-events' is on.  I'm also using the
'add_{thread,inferior}_silent' versions (instead of their verbose
counterparts) on some locations, also to avoid duplicated messages.
For example, a patched GDB with 'set print inferior-events on', 'set
detach-on-fork on' and 'set follow-fork-mode child', but using
'add_thread', would print:

  (gdb) run
  Starting program: a.out
  [Attaching after process 25088 fork to child process 25092.]
  [New inferior 25092]   <--- duplicated
  [Detaching after fork from child process 25092.]
  [Inferior 25088 detached]
  [New process 25092]    <--- duplicated
  [Inferior 2 (process 25092) exited normally]

But if we use 'add_thread_silent' (with the same configuration as
before):

  (gdb) run
  Starting program: a.out
  [Attaching after process 31606 fork to child process 31610]
  [New inferior 2 (process 31610)]
  [Detaching after fork from parent process 31606]
  [Inferior 1 (process 31606) detached]
  [Inferior 2 (process 31610) exited normally]

As for the tests, the configuration options being exercised are:

- follow-fork-mode: child/parent
- detach-on-fork: on/off
- print inferior-events: on/off

It was also necessary to perform adjustments on several testcases,
because the expected messages changed considerably.

Built and regtested on BuildBot, without regressions.

gdb/ChangeLog:
2018-04-24  Jan Kratochvil  <jan.kratochvil@redhat.com>
    Sergio Durigan Junior  <sergiodj@redhat.com>
    Pedro Alves  <palves@redhat.com>

* infcmd.c (kill_command): Print message when inferior has
been killed.
* inferior.c (print_inferior_events): Remove 'static'.  Set as
'1'.
(add_inferior): Improve message printed when
'print_inferior_events' is on.
(exit_inferior): Remove message printed when
'print_inferior_events' is on.
(detach_inferior): Improve message printed when
'print_inferior_events' is on.
(initialize_inferiors): Use 'add_inferior_silent' to set
'current_inferior_'.
* inferior.h (print_inferior_events): Declare here as
'extern'.
* infrun.c (follow_fork_inferior): Print '[Attaching...]' or
'[Detaching...]' messages when 'print_inferior_events' is on.
Use 'add_thread_silent' instead of 'add_thread'.  Add '[' and ']'
as prefix/suffix for messages.  Remove periods.  Fix erroneous
'Detaching after fork from child...', replace it by '... from
parent...'.
(handle_vfork_child_exec_or_exit): Add '[' and ']' as
prefix/suffix when printing 'Detaching...' messages.  Print
them when 'print_inferior_events' is on.
* remote.c (remote_detach_1): Print message when detaching
from inferior and '!is_fork_parent'.

gdb/testsuite/ChangeLog:
2018-04-24  Jan Kratochvil  <jan.kratochvil@redhat.com>
    Sergio Durigan Junior  <sergiodj@redhat.com>
    Pedro Alves  <palves@redhat.com>

* gdb.base/attach-non-pgrp-leader.exp: Adjust 'Detaching...'
regexps to expect for '[Inferior ... detached]' as well.
* gdb.base/attach.exp: Likewise.
* gdb.base/catch-syscall.exp (check_for_program_end): Adjust
"gdb_continue_to_end".
(test_catch_syscall_with_wrong_args): Likewise.
* gdb.base/foll-fork.exp: Adjust regexps to match '[' and
']'.  Don't set 'verbose' on.
* gdb.base/foll-vfork.exp: Likewise.
* gdb.base/fork-print-inferior-events.c: New file.
* gdb.base/fork-print-inferior-events.exp: New file.
* gdb.base/hook-stop.exp: Adjust regexps to expect for new
'[Inferior ... has been killed]' message.
* gdb.base/kill-after-signal.exp: Likewise.
* gdb.base/solib-overlap.exp: Adjust regexps to expect for new
detach message.
* gdb.threads/kill.exp: Adjust regexps to expect for new kill
message.
* gdb.threads/clone-attach-detach.exp: Adjust 'Detaching...'
regexps to expect for '[Inferior ... detached]' as well.
* gdb.threads/process-dies-while-detaching.exp: Likewise.

Fix an illegal memory access when trying to copy an ELF binary with corrupt section symbols.

PR 23113
* elf.c (ignore_section_sym): Check for the output_section pointer
being NULL before dereferencing it.

Fix an illegal memory access when copying a PE format file with corrupt debug information.

PR 23110
* peXXigen.c (_bfd_XX_bfd_copy_private_bfd_data_common): Check for
a negative PE_DEBUG_DATA size before iterating over the debug data.

info-shared.exp: Replace libs=-ldl with shlib_load

As reported in PR 23104, -ldl doesn't work on FreeBSD.  Replace it with
shlib_load, which adds the right flags for dynamic library loading based
on the current target platform.

The test still passes on Linux, and should now pass on FreeBSD, though I
did not test personally.

gdb/testsuite/ChangeLog:

PR gdb/23104
* gdb.base/info-shared.exp: Replace libs=-ldl with shlib_load.

Reindent cli-out.h

I noticed that cli-out.h had incorrect indentation in some spots.
This fixes it.

ChangeLog
2018-04-24  Tom Tromey  <tom@tromey.com>

* cli-out.h: Reindent.

Remove cli_ui_out::out_field_fmt

I noticed that cli_ui_out::out_field_fmt is only used by a single
caller, and it can easily be replaced by fputs_filtered.  So, this
patch removes it.

ChangeLog
2018-04-24  Tom Tromey  <tom@tromey.com>

* cli-out.c (cli_ui_out::out_field_fmt): Remove.
(cli_ui_out::do_field_string): Use fputs_filtered.
* cli-out.h (class cli_ui_out) <out_field_fmt>: Remove.

Automatic date update in version.in

Remove a cleanup from scm-frame.c

This removes a cleanup from scm-frame.c, replacing it with
unique_xmalloc_ptr and a new scope.  I believe this also fixes a
latent bug involving calling do_cleanups twice for a single cleanup.

Regression tested using the gdb.guile test suite on x86-64 Fedora 26.

ChangeLog
2018-04-23  Tom Tromey  <tom@tromey.com>

* guile/scm-frame.c (gdbscm_frame_read_var): Use
gdb::unique_xmalloc_ptr.

Regenerate gdb/configure and gdbserver/configure

Pedro pointed out that gdb/configure and gdbserver/configure weren't
updated after some recent *.m4 changes.

This patch rebuilds those files.  Tested by rebuilding.  Pedro
approved this in the thread where he raised this issue, so I'm pushing
it in.

ChangeLog
2018-04-23  Tom Tromey  <tom@tromey.com>

* configure: Rebuild.

gdbserver/ChangeLog
2018-04-23  Tom Tromey  <tom@tromey.com>

* configure: Rebuild.

Revert bfd part of "Silence gcc-8 warnings"

The gcc warning has been fixed, and the patch regressed builds with
some older versions of gcc.

* elf-linux-core.h: Revert last change.
* elf.c: Likewise.

Prevent an illegal memory access in gprof by ensuring that string tables for aout format files are always zero-terminated.

PR 23056
* aoutx.h (aout_get_external_symbols): Allocate an extra byte at
the end of the string table, and zero it.

Silence gcc-8 warnings

All of these warnings were false positives.  -Wstringop-truncation is
particularly annoying when it warns about strncpy used quite correctly.

bfd/
* elf-linux-core.h (swap_linux_prpsinfo32_ugid32_out): Disable
gcc-8 string truncation warning.
(swap_linux_prpsinfo32_ugid16_out): Likewise.
(swap_linux_prpsinfo64_ugid32_out): Likewise.
(swap_linux_prpsinfo64_ugid16_out): Likewise.
* elf.c (elfcore_write_prpsinfo): Likewise.
gas/
* stabs.c (generate_asm_file): Use memcpy rather than strncpy.
Remove call to strlen inside loop.
* config/tc-cr16.c (getreg_image): Warning fix.
* config/tc-crx.c (getreg_image): Warning fix.

Automatic date update in version.in

Fixed test case to compile & run on FreeBSD

Problems:
1. linking -dl lib on FreeBSD platform
2. backtrace from ld-elf shows r_debug_state() instead of _dl_debug_state()

Cause:
1. There is no dl library on FreeBSD platform test has to ignore linking "-ldl"
2. The stop due to a shared library event shows backtrace frame #0
   function as r_debug_state()

gdb/ChangeLog:

PR gdb/23095
* gdb/testsuite/gdb.base/break-probes.exp: Pass shlib_load to
prepare_for_testing.  Set normal_bp to r_debug_state if target
is bsd.

Automatic date update in version.in

FreeBSD: Fix 'Couldn't get registers: Device busy' error (PR gdb/23077)

As Rajendra SY reported at
<https://sourceware.org/ml/gdb-patches/2018-04/msg00399.html>, several
attach-related tests are failing on FreeBSD.  The "attach" command
errors with "Couldn't get registers: Device busy".

When the "attach" command is executed, it calls target_attach ->
inf_ptrace_attach, which just does the ptrace(PT_ATTACH), it does not
wait for the child to stop with SIGSTOP.  Afterwards, the command is
complete and we go back to the event loop.  The event loop wakes up
and we end up in target_wait -> fbsd_wait, and handle the SIGSTOP
stop.

At the end of execute_command, though, before going back to the event
loop, we check if the frame language changed via
check_frame_language_change().  That reads the current PC, which is
what leads to the registers read that fails.

The problem is that we fail to mark the attached-to thread as
executing between the initial attach, and the subsequent target_wait.
Until we see the thread stop with SIGSTOP, we shouldn't try to read
registers off of it.  I guess there may a timing issue here - if
you're "lucky", the thread may stop before gdb reads its registers,
masking the problem.

With that fixed, check_frame_language_change() becomes a nop until the
thread is marked not-executing again, after target_wait is called and
we go through handle_inferior_event -> normal_stop.

We haven't seen the problem on Linux because there, the target_attach
implementation waits for the thread to stop before returning.  Still,
that's supposedly hidden from the core, since the Linux target, like
most targets, is a '!to_attach_no_wait' target.

This fixes:
 FAIL: gdb.base/attach.exp: attach1, after setting file
 FAIL: gdb.base/attach.exp: attach2, with no file
 FAIL: gdb.base/attach.exp: load file manually, after attach2 (re-read) (got interactive prompt)
 FAIL: gdb.base/attach.exp: attach when process' a.out not in cwd

 FAIL: gdb.base/dprintf-detach.exp: bai=on ds=gdb dd=on: re-attach to inferior
 FAIL: gdb.base/dprintf-detach.exp: bai=on ds=gdb dd=off: re-attach to inferior
 FAIL: gdb.base/dprintf-detach.exp: bai=on ds=call dd=on: re-attach to inferior
 FAIL: gdb.base/dprintf-detach.exp: bai=on ds=call dd=off: re-attach to inferior
 FAIL: gdb.base/dprintf-detach.exp: bai=on ds=agent dd=on: re-attach to inferior
 FAIL: gdb.base/dprintf-detach.exp: bai=on ds=agent dd=off: re-attach to inferior
 FAIL: gdb.base/dprintf-detach.exp: bai=off ds=gdb dd=on: re-attach to inferior
 FAIL: gdb.base/dprintf-detach.exp: bai=off ds=gdb dd=off: re-attach to inferior
 FAIL: gdb.base/dprintf-detach.exp: bai=off ds=call dd=on: re-attach to inferior
 FAIL: gdb.base/dprintf-detach.exp: bai=off ds=call dd=off: re-attach to inferior
 FAIL: gdb.base/dprintf-detach.exp: bai=off ds=agent dd=on: re-attach to inferior
 FAIL: gdb.base/dprintf-detach.exp: bai=off ds=agent dd=off: re-attach to inferior

gdb/ChangeLog:
2018-04-21  Pedro Alves  <palves@redhat.com>
    Rajendra SY  <rajendra.sy@gmail.com>

* inf-ptrace.c (inf_ptrace_attach): Mark the thread as executing.
* remote.c (extended_remote_attach): In all-stop mode, mark the
thread as executing.

Test that gcc -B picks up new ld

gcc configured using --with-ld always uses that particular version of
ld if it exists.  This patch adds a check that the ld version reported
directly from ld-new matches that reported via gcc.  I chose to
compare the ld --version output rather than a more strict test (for
example by gcc --print-prog-name=ld), because the version test allows
a user to run the ld testsuite after installing a new ld (in the place
expected by gcc).

Sample output:

Running target unix
Using /usr/share/dejagnu/baseboards/unix.exp as board description file for target.
Using /usr/share/dejagnu/config/unix.exp as generic interface file for target.
Using /home/alan/src/binutils-gdb/ld/testsuite/config/default.exp as tool-and-target-specific interface file.
ERROR: ************************************************************************
ERROR: Your compiler driver ignores -B when choosing ld.
ERROR: You will not be testing the new ld in many of the following tests.
ERROR: It seems you will be testing /usr/bin/x86_64-w64-mingw32-ld instead.
ERROR: ************************************************************************
WARNING: Assuming target board is the local machine (which is probably wrong).
You may need to set your DEJAGNU environment variable.
Running /home/alan/src/binutils-gdb/ld/testsuite/ld-aarch64/aarch64-elf.exp ...

* testsuite/lib/ld-lib.exp (run_host_cmd): Check that gcc -B
works.

Automatic date update in version.in

RISC-V: Add new option -mrelax/-mno-relax.

gas/
* config/tc-riscv.c (options): Add OPTION_RELAX and
OPTION_NO_RELAX.
(md_longopts): New option -mrelax and -mno-relax.
(md_parse_option): Handle -mrelax and -mno-relax.
* doc/c-riscv.texi: Document for -mrelax and -mno-relax.
* testsuite/gas/riscv/no-relax-reloc.d: New.
* testsuite/gas/riscv/no-relax-reloc.s: New.
* testsuite/gas/riscv/relax-reloc.d: New.
* testsuite/gas/riscv/relax-reloc.s: New.

Improve on-line help for thread_apply_command and thread_apply_all_command.

Add a Usage: line for thread_apply_command, in particular to mention
the thread ID list.

In thread_apply_command and thread_apply_all_command help, use
uppercase for arg names, as this style seems to be more standard.

2018-04-20  Philippe Waroquiers  <philippe.waroquiers@skynet.be>

* thread.c (_initialize_thread): improve on-line help for
thread_apply_command and thread_apply_all_command.

PR22978, TLS local-dynamic incorrectly linked on hppa-linux

We were emitting dynamic relocs on the second word of a TLS GD GOT
entry pair (the dtprel offset), without the addend necessary when no
symbol is present on the dynamic reloc.  Unfortunately the simple
solution of providing the proper addend doesn't work due to an hppa
glibc ld.so bug that ignores such addends.  So instead optimize the
relocs.  The dtprel offset is known at link time for locally defined
symbols (the only case where we'll end up with no symbol on a dynamic
reloc) so we can omit the dynamic reloc in that case.

Furthermore, we can omit a dynamic reloc on the first word of a TLS GD
GOT entry pair (the module id) if the symbol is local and we are
producing an executable.  Similarly, a tprel reloc on a TLS IE GOT
entry is not needed for local symbols in an executable.  So the
condition for TLS GOT relocs can become bfd_link_dll(info) rather than
bfd_link_pic(info) as needed for normal GOT relocs.

This all presumes hppa ld.so doesn't need to differentiate TLS GD GOT
pairs from TLS LD GOT pairs, which is currently true.

PR 22978
* elf32-hppa.c (got_relocs_needed): Add extra param to special
case both dtprel and tprel relocs.
(allocate_dynrelocs): Adjust conditions for got relocs.
(elf32_hppa_relocate_section): Likewise for local sym got relocs.
Emit dynamic relocs on TLS GOT entries for shared libraries,
not when pic.  Omit dynamic reloc on dtprel entry when local,
and on tprel entry when local and executable.

Updated Spanish translation for gas sub-directory

Add test case for a known hang in infrun

The hang occurs when GDB tries to call inferior functions on two
different threads with scheduler-locking turned on. The first call works
fine, with the call to infrun_async(1) causing the signal_handler to be
marked and the event to be handled, but then the event loop resets the
"ready" member to zero, while leaving infrun_is_async set to 1. As a
result, GDB hangs if the user switches to another thread and calls a
second function because calling infrun_async(1) a second time has no
effect, meaning the inferior call events are never handled.

The added test case provokes the above issue.

gdb/testsuite/ChangeLog:

* gdb.threads/multiple-successive-infcall.c: New test.
* gdb.threads/multiple-successive-infcall.exp: New file.

Automatic date update in version.in

[OB PATCH] Fix some comments in thread.c

Fix some typos.
Remove obsolete comment about dispatch to thread_apply_command,
rather tell that thread_command either switches to a thread,
or prints the current thread.

2018-04-19  Philippe Waroquiers  <philippe.waroquiers@skynet.be>

* thread.c (thread_apply_all_command): Fix comment.
(thread_command): Fix comment.

Fix dependency tracking in gdbserver subdirectories

The dependency tracking (the thing that knows which source file included
which other source file during last build to know what to rebuild when
an included file changes) is broken for gdbserver subdirectories (arch
and common).

The dependency tracking files are created in the form

  arch/.deps/i386.Po

but we try to include

  .deps/arch/i386.Po

An easy smoke test is too "touch" the gdb/features/i386/32bit-core.c
file in the source directory and try to rebuild gdbserver.  This file is
included by gdb/arch/i386.c, so it should cause
gdb/gdbserver/arch/i386.o in the build directory to be rebuilt.  It
currently isn't rebuilt, but is with this patch applied.

This patch copies the technique used in GDB to transform the dep file
paths to the proper form.

Also, while testing using the depcomp method of dependency tracking (by
just hacking the condition), I noticed that depcomp was not found.  The
path to depcomp seems to be missing a "..".

gdb/gdbserver/ChangeLog:

* Makefile.in (depcomp): Add "..".
(all_deps_files): New and use it.

Fix second bug where --icf=safe triggers segfault when linking ARM.

When checking a R_ARM_TARGET[12] relocation, we need a valid target
pointer, but the garbage collection code was passing a NULL instead.
The previous fix for this bug fixed the call to
scan.global_reloc_may_be_function_pointer, but missed the similar
call to scan.local_reloc_may_be_function_pointer.

gold/
PR gold/23046
* gc.h (gc_process_relocs): Pass target to
scan.local_reloc_may_be_function_pointer.

PR22537, Segmentation fault with static PIE

The only stub type that makes sense for undefined symbols, or those
defined in shared libraries, is a plt call stub.  This patch arranges
to have "destination" set to -1 on such symbols, making for an easy
test in hppa_type_of_stub.

PR 22537
* elf32-hppa.c (elf32_hppa_size_stubs): Init "destination" to -1.
(hppa_type_of_stub): Don't return a long branch stub for
symbols other than those defined statically.

Reinstate mips ecoff support

* Makefile.am: Revert 2018-04-18 coff-mips changes.
* config.bfd: Add back mips_ecoff_le_vec and mips_ecoff_be_vec
to selvecs for mips targets change 2018-04-18.
* configure.ac: Reinstate mips_ecoff_le_vec, mips_ecoff_be_vec
and  mips_ecoff_bele_vec.
* targets.c: Likewise.
* coff-mips.c: Resurrect.
* Makefile.in: Regenerate.
* configure: Regenerate.
* po/SRC-POTFILES.in: Regenerate.

Automatic date update in version.in

Remove xml files from gdbserver

For ports which use new target descriptions, remove
the xml files from being built into gdbserver.

gdbserver/
* configure.srv (aarch64*-*-linux*): Don't include xml.
(i[34567]86-*-cygwin*): Likewise.
(i[34567]86-*-linux*): Likewise.
(i[34567]86-*-lynxos*): Likewise.
(i[34567]86-*-mingw32ce*): Likewise.
(i[34567]86-*-mingw*): Likewise.
(i[34567]86-*-nto*): Likewise.
(tic6x-*-uclinux): Likewise.
(x86_64-*-linux*): Likewise.
(x86_64-*-mingw*): Likewise.
(x86_64-*-cygwin*): Likewise.

Remove xml file references from target descriptions

gdb/
* common/tdesc.h (tdesc_create_feature): Remove xml filename
parameter.
* features/aarch64-core.c (create_feature_aarch64_core):
Regenerate.
* features/aarch64-fpu.c (create_feature_aarch64_fpu):
Likewise.
* features/i386/32bit-avx.c (create_feature_i386_32bit_avx):
Likewise.
* features/i386/32bit-avx512.c
(create_feature_i386_32bit_avx512): Likewise.
* features/i386/32bit-core.c (create_feature_i386_32bit_core):
Likewise.
* features/i386/32bit-linux.c (create_feature_i386_32bit_linux):
Likewise.
* features/i386/32bit-mpx.c (create_feature_i386_32bit_mpx):
Likewise.
* features/i386/32bit-pkeys.c (create_feature_i386_32bit_pkeys):
Likewise.
* features/i386/32bit-sse.c (create_feature_i386_32bit_sse):
Likewise.
* features/i386/64bit-avx.c (create_feature_i386_64bit_avx):
Likewise.
* features/i386/64bit-avx512.c
(create_feature_i386_64bit_avx512): Likewise.
* features/i386/64bit-core.c (create_feature_i386_64bit_core):
Likewise.
* features/i386/64bit-linux.c (create_feature_i386_64bit_linux):
Likewise.
* features/i386/64bit-mpx.c (create_feature_i386_64bit_mpx):
Likewise.
* features/i386/64bit-pkeys.c (create_feature_i386_64bit_pkeys):
Likewise.
* features/i386/64bit-segments.c
(create_feature_i386_64bit_segments): Likewise.
* features/i386/64bit-sse.c (create_feature_i386_64bit_sse):
Likewise.
* features/i386/x32-core.c
(create_feature_i386_x32_core): Likewise.
* features/tic6x-c6xp.c (create_feature_tic6x_c6xp): Likewise.
* features/tic6x-core.c (create_feature_tic6x_core): Likewise.
* features/tic6x-gp.c (create_feature_tic6x_gp): Likewise.
* target-descriptions.c: In generated code, don't pass xml
filename.

gdbserver/
* tdesc.c: Remove xml parameter.

Create xml from target descriptions

Add a print_xml_feature visitor class which turns a
target description into xml. Both gdb and gdbserver can do this.

gdb/
* common/tdesc.c (print_xml_feature::visit_pre): Add xml parsing.
(print_xml_feature::visit_post): Likewise.
(print_xml_feature::visit): Likewise.
* common/tdesc.h (tdesc_get_features_xml): Use const tdesc.
(print_xml_feature): Add new class.
* regformats/regdat.sh: Null xmltarget on feature targets.
* target-descriptions.c (struct target_desc): Add xmltarget.
(maintenance_check_tdesc_xml_convert): Add unittest function.
(tdesc_get_features_xml): Add function to get xml.
(maintenance_check_xml_descriptions): Test xml generation.
* xml-tdesc.c (string_read_description_xml): Add function.
* xml-tdesc.h (string_read_description_xml): Add declaration.

gdbserver/
* gdb/gdbserver/server.c (get_features_xml): Remove cast.
* tdesc.c (void target_desc::accept): Fill in function.
(tdesc_get_features_xml): Remove old xml creation.
(print_xml_feature::visit_pre): Add xml vistor.
* tdesc.h (struct target_desc): Make xmltarget mutable.
(tdesc_get_features_xml): Remove declaration.

Add feature reference in .dat files

For all targets which use the newer style target descriptions, add a
"feature" marker in the dat files.
Update regdat.sh to parse feature, but do not use it (yet).

gdb/
* features/Makefile: Add feature marker to targets with new style
target descriptions.
* regformats/aarch64.dat: Regenerate.
* regformats/i386/amd64-avx-avx512-linux.dat: Likewise.
* regformats/i386/amd64-avx-linux.dat: Likewise.
* regformats/i386/amd64-avx-mpx-avx512-pku-linux.dat: Likewise.
* regformats/i386/amd64-avx-mpx-linux.dat: Likewise.
* regformats/i386/amd64-linux.dat: Likewise.
* regformats/i386/amd64-mpx-linux.dat: Likewise.
* regformats/i386/amd64.dat: Likewise.
* regformats/i386/i386-avx-avx512-linux.dat: Likewise.
* regformats/i386/i386-avx-linux.dat: Likewise.
* regformats/i386/i386-avx-mpx-avx512-pku-linux.dat: Likewise.
* regformats/i386/i386-avx-mpx-linux.dat: Likewise.
* regformats/i386/i386-linux.dat: Likewise.
* regformats/i386/i386-mmx-linux.dat: Likewise.
* regformats/i386/i386-mpx-linux.dat: Likewise.
* regformats/i386/i386.dat: Likewise.
* regformats/i386/x32-avx-avx512-linux.dat: Likewise.
* regformats/i386/x32-avx-linux.dat: Likewise.
* regformats/i386/x32-linux.dat: Likewise.
* regformats/tic6x-c62x-linux.dat: Likewise.
* regformats/tic6x-c64x-linux.dat: Likewise.
* regformats/tic6x-c64xp-linux.dat: Likewise.
* regformats/regdat.sh: Parse feature marker.

Add tdesc osabi and architecture functions

gdb/
* common/tdesc.h (tdesc_architecture_name): Add new declaration.
(tdesc_osabi_name): Likewise.
* target-descriptions.c (tdesc_architecture_name): Add new function.
(tdesc_osabi_name): Likewise.

gdbserver/
* tdesc.c (tdesc_architecture_name): Add new function.
(tdesc_osabi_name): Likewise.
(tdesc_get_features_xml): Use new functions.

Commonise tdesc types and makes use of them in gdbserver tdesc

gdb/
* common/tdesc.c (tdesc_predefined_type): Move to here.
(tdesc_named_type): Likewise.
(tdesc_create_vector): Likewise.
(tdesc_create_struct): Likewise.
(tdesc_set_struct_size): Likewise.
(tdesc_create_union): Likewise.
(tdesc_create_flags): Likewise.
(tdesc_create_enum): Likewise.
(tdesc_add_field): Likewise.
(tdesc_add_typed_bitfield): Likewise.
(tdesc_add_bitfield): Likewise.
(tdesc_add_flag): Likewise.
(tdesc_add_enum_value): Likewise.
* common/tdesc.h (struct tdesc_type_builtin): Likewise.
(struct tdesc_type_vector): Likewise.
(struct tdesc_type_field): Likewise.
(struct tdesc_type_with_fields): Likewise.
(tdesc_create_enum): Add declaration.
(tdesc_add_typed_bitfield): Likewise.
(tdesc_add_enum_value): Likewise.
* target-descriptions.c (tdesc_type_field): Move from here.
(tdesc_type_builtin): Likewise.
(tdesc_type_vector): Likewise.
(tdesc_type_with_fields): Likewise.
(tdesc_predefined_types): Likewise.
(tdesc_named_type): Likewise.
(tdesc_create_vector): Likewise.
(tdesc_create_struct): Likewise.
(tdesc_set_struct_size): Likewise.
(tdesc_create_union): Likewise.
(tdesc_create_flags): Likewise.
(tdesc_create_enum): Likewise.
(tdesc_add_field): Likewise.
(tdesc_add_typed_bitfield): Likewise.
(tdesc_add_bitfield): Likewise.
(tdesc_add_flag): Likewise.
(tdesc_add_enum_value): Likewise.
* gdb/target-descriptions.h (tdesc_create_enum): Likewise.
(tdesc_add_typed_bitfield): Likewise.
(tdesc_add_enum_value): Likewise.

gdbserver/
* tdesc.c (tdesc_create_flags): Remove.
(tdesc_add_flag): Likewise.
(tdesc_named_type): Likewise.
(tdesc_create_union): Likewise.
(tdesc_create_struct): Likewise.
(tdesc_create_vector): Likewise.
(tdesc_add_bitfield): Likewise.
(tdesc_add_field): Likewise.
(tdesc_set_struct_size): Likewise.

Commonise tdesc_feature and makes use of it in gdbserver tdesc

gdb/
* common/tdesc.c (tdesc_feature::accept): Move to here.
(tdesc_feature::operator==): Likewise.
(tdesc_create_reg): Likewise.
* common/tdesc.h (tdesc_type_kind): Likewise.
(struct tdesc_type): Likewise.
(struct tdesc_feature): Likewise.
* regformats/regdat.sh: Create a feature.
* target-descriptions.c (tdesc_type_kind): Move from here.
(tdesc_type): Likewise.
(tdesc_type_up): Likewise.
(tdesc_feature): Likewise.
(tdesc_create_reg): Likewise.

gdbserver/
* tdesc.c (~target_desc): Remove implictly deleted items.
(init_target_desc): Iterate all features.
(tdesc_get_features_xml): Use vector.
(tdesc_create_feature): Create feature.
* tdesc.h (tdesc_feature) Remove
(target_desc): Add features.

Commonise tdesc_reg and makes use of it in gdbserver tdesc

gdb/
* Makefile.in: Add arch/tdesc.c
* common/tdesc.c: New file.
* common/tdesc.h (tdesc_element_visitor): Move to here.
(tdesc_element): Likewise.
(tdesc_reg): Likewise.
(tdesc_reg_up): Likewise.
* regformats/regdef.h (reg): Add offset to constructors.
* target-descriptions.c (tdesc_element_visitor): Move from here.
(tdesc_element): Likewise.
(tdesc_reg): Likewise.
(tdesc_reg_up): Likewise.

gdbserver/
* Makefile.in: Add common/tdesc.c
* tdesc.c (init_target_desc): init all reg_defs from register vector.
(tdesc_create_reg): Create tdesc_reg.
* tdesc.h (tdesc_feature): Add register vector.

Prevent an assertion failure in readelf & objdump when parsing corrupt DWARF information.

PR 23062
* dwarf.c (read_and_display_attr_value): Replace assertions with
test and warning message.

Updated Spanish translation for gprof directory

Updated Spanish translations for the gold and gprof sub-directories

Remove mips aout, coff, and pe support

include/coff/mips.h needs to stay for ecoff debug support.

include/
* coff/mipspe.h: Delete.
bfd/
* Makefile.am: Remove mips aout, coff, and pe support.
* config.bfd: Likewise.
* configure.ac: Likewise.
* targets.c: Likewise.
* coff-mips.c: Delete
* mipsbsd.c: Delete
* pe-mips.c: Delete
* pei-mips.c: Delete
* Makefile.in: Regenerate.
* configure: Regenerate.
* po/SRC-POTFILES.in: Regenerate.

x86: Don't define elf32_bed/elf64_bed variables

Define elf32_bed and elf64_bed before including "elf32-target.h" and
"elf64-target.h" to avoid local elf32_bed and elf64_bed variables.

* elf32-i386.c (elf32_bed): Define before including
"elf32-target.h".
* elf64-x86-64.c (elf64_bed): Define before including
"elf64-target.h".
(elf32_bed): Define before including "elf32-target.h".

elf32_bed/elf64_bed

x86: Use a normal input file with compatible relocation

Use a normal input file with compatible relocation to hold linker
created sections,

PR ld/23055
* elfxx-x86.c (_bfd_x86_elf_link_setup_gnu_properties): Use a
normal input file with compatible relocation.

various i386-aout and i386-coff target removal

Also tidies some other aout leftovers in binutils-common.exp.

bfd/
* Makefile.am: Remove support for assorted i386 aout and coff targets.
* config.bfd: Likewise.
* configure.ac: Likewise.
* doc/bfdint.texi: Likewise.
* targets.c: Likewise.
* freebsd.h: Delete.
* i386dynix.c: Delete.
* i386freebsd.c: Delete.
* i386linux.c: Delete.
* i386mach3.c: Delete.
* i386netbsd.c: Delete.
* i386os9k.c: Delete.
* Makefile.in: Regenerate.
* configure: Regenerate.
* po/SRC-POTFILES.in: Regenerate.
binutils/
* testsuite/lib/binutils-common.exp: Remove support for assorted
aout targets.
gas/
* Makefile.am: Remove support for assorted i386 aout and coff targets.
* config/obj-elf.c: Likewise.
* config/tc-i386.h: Likewise.
* configure.ac: Likewise.
* configure.tgt: Likewise.
* config/te-dynix.h: Delete.
* config/te-i386aix.h: Delete.
* config/te-mach.h: Delete.
* Makefile.in: Regenerate.
* config.in: Regenerate.
* configure: Regenerate.
* po/POTFILES.in: Regenerate.
include/
* aout/dynix3.h: Delete.
ld/
* Makefile.am: Remove support for assorted i386 aout and coff targets.
* configure.tgt: Likewise.
* testsuite/ld-discard/discard.exp: Likewise.
* testsuite/ld-elf/binutils.exp: Likewise.
* testsuite/ld-elf/tls.exp: Likewise.
* testsuite/ld-elf/tls_common.exp: Likewise.
* testsuite/ld-elfvers/vers.exp: Likewise.
* testsuite/ld-elfvsb/elfvsb.exp: Likewise.
* testsuite/ld-elfweak/elfweak.exp: Likewise.
* testsuite/ld-gc/abi-note.d: Likewise.
* testsuite/ld-gc/pr19167.d: Likewise.
* testsuite/ld-gc/pr20022.d: Likewise.
* testsuite/ld-gc/start.d: Likewise.
* testsuite/ld-gc/stop.d: Likewise.
* testsuite/ld-i386/i386.exp: Likewise.
* testsuite/ld-ifunc/binutils.exp: Likewise.
* testsuite/ld-ifunc/ifunc.exp: Likewise.
* testsuite/ld-linkonce/linkonce.exp: Likewise.
* testsuite/ld-plugin/lto.exp: Likewise.
* testsuite/ld-scripts/empty-address-2a.d: Likewise.
* testsuite/ld-scripts/empty-address-2b.d: Likewise.
* testsuite/ld-scripts/phdrs2.exp: Likewise.
* testsuite/ld-scripts/section-match-1.d: Likewise.
* testsuite/ld-shared/shared.exp: Likewise.
* testsuite/ld-size/size.exp: Likewise.
* testsuite/ld-sparc/sparc.exp: Likewise.
* emulparams/i386coff.sh: Delete.
* emulparams/i386linux.sh: Delete.
* emulparams/i386mach.sh: Delete.
* emulparams/i386nbsd.sh: Delete.
* emulparams/vsta.sh: Delete.
* scripttempl/i386coff.sc: Delete.
* Makefile.in: Regenerate.
* po/BLD-POTFILES.in: Regenerate.

Tidy gas/configure.tgt

Should have been removed with m68k bsd support.

* configure.tgt: Remove *-*-bsd* entry.

Correct ChangeLog dates for git commit 3f0a5f17d7f

Automatic date update in version.in

[MicroBlaze] PIC data text relative

Andrew Sadek <andrew.sadek.se@gmail.com>

A new implemented feature in GCC Microblaze that allows Position
Independent Code to run using Data Text Relative addressing instead
of using Global Offset Table.

Its aim was to make 'PIC' more efficient and flexible as elf size
excess performance overhead were noticed when using GOT due to the
indirect addressing.

include/ChangeLog:
* bfdlink.h (Add flag): Add new flag @ 'bfd_link_info' struct.
* elf/microblaze.h (Add 3 new relocations):
R_MICROBLAZE_TEXTPCREL_64, R_MICROBLAZE_TEXTREL_64
and R_MICROBLAZE_TEXTREL_32_LO for relax function.
bfd/ChangeLog:
* bfd/reloc.c (2 new BFD relocations):
BFD_RELOC_MICROBLAZE_64_TEXTPCREL &
BFD_RELOC_MICROBLAZE_64_TEXTPCREL
* bfd/bfd-in2.h: Regenerate
* bfd/libbfd.h: Regenerate
* bfd/elf32-microblaze.c (Handle new relocs): define 'HOWTO' of 3
new relocs and handle them in both relocate and relax functions.
(microblaze_elf_reloc_type_lookup): add mapping between for new
bfd relocs.
(microblaze_elf_relocate_section): Handle new relocs in case of
elf relocation.
(microblaze_elf_relax_section): Handle new relocs for elf relaxation.
gas/ChangeLog:
* gas/config/tc-microblaze.c (Handle new relocs directives in
assembler): Handle new relocs from compiler output.
(imm_types): add new imm types for data text relative addressing
TEXT_OFFSET, TEXT_PC_OFFSET
(md_convert_frag): conversion for BFD_RELOC_MICROBLAZE_64_TEXTPCREL,
BFD_RELOC_MICROBLAZE_64_TEXTPCREL
(md_apply_fix): apply fix for BFD_RELOC_MICROBLAZE_64_TEXTPCREL,
BFD_RELOC_MICROBLAZE_64_TEXTPCREL
(md_estimate_size_before_relax): estimate size for
BFD_RELOC_MICROBLAZE_64_TEXTPCREL,
BFD_RELOC_MICROBLAZE_64_TEXTPCREL
(tc_gen_reloc): generate relocations for
BFD_RELOC_MICROBLAZE_64_TEXTPCREL,
BFD_RELOC_MICROBLAZE_64_TEXTPCREL
ld/ChangeLog:
* ld/lexsup.c (Add 2 ld options):
(ld_options): add disable-multiple-abs-defs @ 'ld_options' array
(parse_args): parse new option and pass flag to 'link_info' struct.
* ld/ldlex.h (Add enum): add new enum @ 'option_values' enum.
* ld/ld.texinfo (Add new option): Add description for
'disable-multiple-abs-defs'
* ld/main.c: Initialize flags with false @ 'main'. Handle
disable-multiple-abs-defs @ 'mutiple_definition'.

Conditionally drop the discriminant field in quirk_rust_enum

While debugging the crash that Jan reported, I noticed that in some
situations we could end up with a situation where one branch of a Rust
enum type ended up with a field count of -1.

The fix is simple: only conditionally drop the discriminant field when
rewriting the enum variants.

I couldn't find a way to test this; I only noticed it while debugging
the DWARF reader.

2018-04-17  Tom Tromey  <tom@tromey.com>

* dwarf2read.c (quirk_rust_enum): Conditionally drop the
discriminant field.

Fix crash in quirk_rust_enum

I noticed that quirk_rust_enum can crash when presented with a union
whose fields are all scalar types.

This patch adds a new test case and fixes the bug.

Regression tested on Fedora 26 x86-64.

2018-04-17  Tom Tromey  <tom@tromey.com>

* dwarf2read.c (quirk_rust_enum): Handle unions correctly.

2018-04-17  Tom Tromey  <tom@tromey.com>

* gdb.rust/simple.rs (Union): New type.
(main): New local "u".
* gdb.rust/simple.exp (test_one_slice): Add new test case.

Don't print symbol declaration's line number in rbreak output

This commit:

  b744723f57 -- Show line numbers in output for "info var/func/type"

adds the symbol declaration's line number to the output of certain GDB
commands.  It also (inadvertently) changes the `rbreak' command's output,
like this:

  (gdb) rbreak foo
  Breakpoint 1 at 0x40049b: file rbreak.c, line 6.
  4:      static int foo1(void);
  Breakpoint 2 at 0x4004b1: file rbreak.c, line 12.
  10:     static int foo2(void);
  (gdb)

where the function declaration is now prefixed by its source line number,
followed by a colon.  But without showing the declaration's file name, the
line number is useless and can possibly cause severe confusion.

No declaration line number was shown before.  Instead, the function
declaration started at the first column:

  (gdb) rbreak foo
  Breakpoint 1 at 0x40049b: file rbreak.c, line 6.
  static int foo1(void);
  Breakpoint 2 at 0x4004b1: file rbreak.c, line 12.
  static int foo2(void);
  (gdb)

This old behavior is restored, fixing some FAILs in fullpath-expand.exp,
realname-expand.exp, and pr10179.exp.

In order to distinguish when to print location information, the meaning of
print_symbol_info()'s parameter `last' is changed.  Now NULL means to skip
any filename or line number information.  Previously NULL meant to always
print the filename.

gdb/ChangeLog:

* symtab.c (print_symbol_info): Skip printing filename and line
number when `last' is NULL.
(symtab_symbol_info): Use empty string instead of NULL for first
invocation of print_symbol_info.
(rbreak_command): Pass NULL to `last' parameter of
print_symbol_info.

Fix illegal memory accesses trigeered when linking corrupt input files.

PR 23055
* aoutx.h (find_nearest_line): Check that the symbol name exists
and is long enough, before attempting to see if it is for a .o
file.
* hash.c (bfd_hash_hash): Add an assertion that the string is not
NULL.
* linker.c (bfd_link_hash_lookup): Fail if the table or string are
NULL.
(_bfd_generic_link_add_archive_symbols): Fail if an archive entry
has no name.

Fix typo in ChangeLog entry in previous delta.

PR 23063
* readelf.c (print_symbol): If the width is zero, return straight
away.

Remove an abort() from the readelf sources.

PR 26063
* readelf.c (print_symbol): If the width is zero, return straight
away.

Add a check for a NULL table pointer before attempting to compute a DWARF filename.

PR 23065
* dwarf2.c (concat_filename): Check for a NULL table pointer.

Resync libiberty sources with master version in GCC repository.

2018-04-13  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

PR lto/81968
* simple-object.c (handle_lto_debug_sections): Keep .comment
section.

2018-03-02  David Malcolm  <dmalcolm@redhat.com>

* cp-demangle.c: Update URL for g++ V3 ABI.

2018-01-20  Eli Zaretskii  <eliz@gnu.org>

* simple-object-xcoff.c (simple_object_xcoff_find_sections): Use
ulong_type to avoid warning about 32-bit shift.

2018-01-11  Richard Biener  <rguenther@suse.de>
Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

PR lto/81968
* simple-object-common.h (struct simple_object_functions):
Change copy_lto_debug_sections callback signature.
* simple-object-elf.c (SHN_HIRESERVE, SHT_SYMTAB_SHNDX,
SHF_INFO_LINK): Add defines.
(simple_object_elf_copy_lto_debug_sections): Instead of
leaving not to be copied sections empty unnamed SHT_NULL
remove them from the target section headers and adjust section
reference everywhere.  Handle SHN_XINDEX in the symbol table
processing properly.
* simple-object.c (handle_lto_debug_sections): Change
interface to return a modified string and handle renaming
of relocation sections.

2018-01-10  Daniel van Gerpen  <daniel@vangerpen.de>

* argv.c (expandargv): Correct check for dynamically
allocated argv.

Fix tests to avoid cldemote encoding.

gas/
* testsuite/gas/i386/nops.s: Revert back deleted lines and
change encoding to 0x0f1c /1 to map to NOP.
* testsuite/gas/i386/x86-64-nops.s: Likewise.
* testsuite/gas/i386/nops.d: Likewise.
* testsuite/gas/i386/x86-64-nops.d: Likewise.
* testsuite/gas/i386/ilp32/x86-64-nops.d: Likewis.

Fix illegal memory access when parsing corrupt DWARF information.

PR 23064
* dwarf.c (process_cu_tu_index): Test for a potential buffer
overrun before copying signature pointer.

Enable Intel CLDEMOTE instruction.

gas/
* config/tc-i386.c (cpu_arch): Add .cldemote.
* doc/c-i386.texi: Document cldemote/.cldemote.
* testsuite/gas/i386/cldemote-intel.d: New.
* testsuite/gas/i386/cldemote.d: Likewise.
* testsuite/gas/i386/cldemote.s: Likewise.
* testsuite/gas/i386/i386.exp: Run new tests.
* testsuite/gas/i386/x86-64-cldemote-intel.d: New.
* testsuite/gas/i386/x86-64-cldemote.d: Likewise.
* testsuite/gas/i386/x86-64-cldemote.s: Likewise.
* testsuite/gas/i386/ilp32/x86-64-nops.d: Remove 0x0f1c
NOP encoding that maps to cldemote.
* testsuite/gas/i386/nops.d: Likewise.
* testsuite/gas/i386/nops.s: Likewise.
* testsuite/gas/i386/x86-64-nops.d: Likewise.
* testsuite/gas/i386/x86-64-nops.s: Likewise.

opcode/
* i386-dis.c: Add REG_0F1C_MOD_0, MOD_0F1C_PREFIX_0,
PREFIX_0F1C.
* i386-gen.c (cpu_flag_init): Add CPU_CLDEMOTE_FLAGS,
(cpu_flags): Add CpuCLDEMOTE.
* i386-init.h: Regenerate.
* i386-opc.h (enum): Add CpuCLDEMOTE,
(i386_cpu_flags): Add cpucldemote.
* i386-opc.tbl: Add cldemote.
* i386-tbl.h: Regenerate.

Reinstate readelf decoding of i860, i960 and i370 relocs

include/
* elf/i370.h: Revert removal.
* elf/i860.h: Likewise.
* elf/i960.h: Likewise.
binutils
* readelf.c: Revert 2018-04-16 and 2018-04-11 changes.

Automatic date update in version.in

linux_spu_make_corefile_notes: return note_data instead of nullptr

Since commit

  9018be2 ("Make target_read_alloc & al return vectors")

the test gdb.threads/gcore-stale-thread.exp test results in UNSUPPORTED:

  UNSUPPORTED: gdb.threads/gcore-stale-thread.exp: save a corefile

The problem is that the linux_spu_make_corefile_notes started returning
nullptr when reading TARGET_OBJECT_SPU fails.  The previous (and proper)
behaviour is to return the note_data received as a parameter, so that
other functions may continue to append to this buffer.

With this patch, the test goes back to PASS.

gdb/ChangeLog:

* linux-tdep.c (linux_spu_make_corefile_notes): Return note_data
instead of nullptr.

Adjust more test cases to changed output of info var/func/type

After this commit:

  b744723f57 -- Show line numbers in output for "info var/func/type"

the test cases dbx.exp and info-fun.exp yield new FAILs because two
regular expressions have not been adjusted to the changed output yet.
This is fixed.

gdb/testsuite/ChangeLog:

* gdb.base/dbx.exp (test_whereis): Adjust regexp to added line
number information in output of "whereis" command.
* gdb.base/info-fun.exp: Likewise, for "info fun" command.

Fix illegal memory accesses in the assembler when attempting to parse corrup tinput files.

PR 23054
* cond.c (s_ifsef): Replace use of obstack_copy with obstack_alloc
followed by memcpy.
(s_if, s_ifb, s_ifc, s_ifeqs): Likewise.
* obj-elf.c (elf_adjust_symtab): Check for local symbols before
attempting to dereference the sy_next field of a symbol.
* stabs.c (get_stab_string_offset): Fail if there is no string
following the stab directive.

Remove sunos.em

Should have been removed with the m68k and sparc aout targets.

* emultempl/sunos.em: Delete.

Fix i960 machine name

* readelf.c (get_machine_name): Correct typo.

gdb: Remove support for SH-5/SH64

Since bfd dropped support for SH-5, there's no point in keeping it in
GDB either.

This restores --enable-targets=all builds.

gdb/ChangeLog:
2018-04-16  Pedro Alves  <palves@redhat.com>

* MAINTAINERS (sh): Remove.
* Makefile.in (ALL_TARGET_OBS): Remove sh64-tdep.o.
(HFILES_NO_SRCDIR): Remove sh64-tdep.h.
(ALLDEPFILES): Remove sh64-tdep.c.
* NEWS: Mentions that support for SH-5/SH64 is removed.
* configure.tgt (sh*-*-linux*): Remove reference to sh64-tdep.o.
(sh*-*-openbsd*): Ditto.
(sh64-*-elf*): Remove.
(sh*): Remove.
* regcache.c (cooked_write_test): Remove bfd_mach_sh5 case.
* sh-linux-tdep.c: Remove reference to bfd_mach_sh5.
* sh-tdep.c: No longer include "sh64-tdep.h".
(sh_gdbarch_init): Remove reference to bfd_mach_sh5.
* sh64-tdep.c, sh64-tdep.h: Remove files.

gdb: Remove OpenBSD/m88k support

Support for m88k was fully removed from bfd, which broke gdb
--enable-targets=all builds:

  > gdb/m88k-tdep.c: In function void _initialize_m88k_tdep():
  > gdb/m88k-tdep.c:867:21: error: bfd_arch_m88k was not declared in this scope
  >    gdbarch_register (bfd_arch_m88k, m88k_gdbarch_init, NULL);

There's no point in keeping GDB support for OpenBSD/m88k with no bfd
support, so this commit simply removes the port.

gdb/ChangeLog:
2018-04-16  Pedro Alves  <palves@redhat.com>

* MAINTAINERS: Remove m88k.
* Makefile.in (ALL_TARGET_OBS): Remove m88k-tdep.o.
(HFILES_NO_SRCDIR): Remove m88k-tdep.h.
(ALLDEPFILES): Remove m88k-bsd-nat.c and m88k-tdep.c.
* NEWS: Mention that support for OpenBSD/m88k was removed.
* configure.host (m88*-*-*): Remove support.
* configure.nat (m88k-*-*): Remove support.
* configure.tgt (m88*-*-openbsd*): Remove.
* m88k-bsd-nat.c, m88k-tdep.c, m88k-tdep.h: Delete.