Enhance objdump so that it will use .got, .plt and .plt.got section symbols when disassembling, and it will use dynamic relocs to interpret entries in the PLT and GOT.

binutils * objdump.c (is_significant_symbol_name): New function.
(remove_useless_symbols): Do not remove significanr symbols.
(find_symbol_for_address): If an exact match for the specified
address has not been found, try scanning the dynamic relocs to see
if one of these matches the address.  If so, use the symbol
associated with the reloc.
(objdump_print_addr_with_symbol): Do not print offsets to symbols
with no value.
(disassemble_section): Only use dynamic relocs if the user
requested this.
(disassemble_data): Always load dynamic relocs if they are
available.

ld * ld-aarch64/emit-relocs-515-be.d: Adjust output to match change
in objdump.
* ld-aarch64/emit-relocs-515.d: Likewise.
* ld-aarch64/emit-relocs-516-be.d: Likewise.
* ld-aarch64/emit-relocs-516.d: Likewise.
* ld-aarch64/farcall-b-plt.d: Likewise.
* ld-aarch64/farcall-bl-plt.d: Likewise.
* ld-aarch64/gc-plt-relocs.d: Likewise.
* ld-aarch64/tls-desc-ie.d: Likewise.
* ld-aarch64/tls-tiny-desc.d: Likewise.
* ld-aarch64/tls-tiny-gd.d: Likewise.
* ld-aarch64/tls-tiny-ie.d: Likewise.
* ld-arm/arm-app-abs32.d: Likewise.
* ld-arm/arm-app.d: Likewise.
* ld-arm/arm-lib-plt32.d: Likewise.
* ld-arm/arm-lib.d: Likewise.
* ld-arm/armthumb-lib.d: Likewise.
* ld-arm/cortex-a8-fix-b-plt.d: Likewise.
* ld-arm/cortex-a8-fix-bcc-plt.d: Likewise.
* ld-arm/cortex-a8-fix-bl-plt.d: Likewise.
* ld-arm/cortex-a8-fix-bl-rel-plt.d: Likewise.
* ld-arm/cortex-a8-fix-blx-plt.d: Likewise.
* ld-arm/farcall-mixed-app-v5.d: Likewise.
* ld-arm/farcall-mixed-app.d: Likewise.
* ld-arm/farcall-mixed-app2.d: Likewise.
* ld-arm/farcall-mixed-lib-v4t.d: Likewise.
* ld-arm/farcall-mixed-lib.d: Likewise.
* ld-arm/ifunc-10.dd: Likewise.
* ld-arm/ifunc-14.dd: Likewise.
* ld-arm/ifunc-15.dd: Likewise.
* ld-arm/ifunc-3.dd: Likewise.
* ld-arm/ifunc-4.dd: Likewise.
* ld-arm/ifunc-9.dd: Likewise.
* ld-arm/long-plt-format.d: Likewise.
* ld-arm/mixed-app-v5.d: Likewise.
* ld-arm/mixed-app.d: Likewise.
* ld-arm/mixed-lib.d: Likewise.
* ld-arm/tls-lib-loc.d: Likewise.
* ld-cris/dso-pltdis1.d: Likewise.
* ld-cris/dso-pltdis2.d: Likewise.
* ld-cris/dso12-pltdis.d: Likewise.
* ld-elf/symbolic-func.r: Likewise.
* ld-frv/fdpic-pie-1.d: Likewise.
* ld-frv/fdpic-pie-2.d: Likewise.
* ld-frv/fdpic-pie-6.d: Likewise.
* ld-frv/fdpic-pie-7.d: Likewise.
* ld-frv/fdpic-pie-8.d: Likewise.
* ld-frv/fdpic-shared-1.d: Likewise.
* ld-frv/fdpic-shared-2.d: Likewise.
* ld-frv/fdpic-shared-3.d: Likewise.
* ld-frv/fdpic-shared-4.d: Likewise.
* ld-frv/fdpic-shared-5.d: Likewise.
* ld-frv/fdpic-shared-6.d: Likewise.
* ld-frv/fdpic-shared-7.d: Likewise.
* ld-frv/fdpic-shared-8.d: Likewise.
* ld-frv/fdpic-shared-local-2.d: Likewise.
* ld-frv/fdpic-shared-local-8.d: Likewise.
* ld-frv/fdpic-static-1.d: Likewise.
* ld-frv/fdpic-static-2.d: Likewise.
* ld-frv/fdpic-static-6.d: Likewise.
* ld-frv/fdpic-static-7.d: Likewise.
* ld-frv/fdpic-static-8.d: Likewise.
* ld-frv/tls-dynamic-2.d: Likewise.
* ld-frv/tls-initial-shared-2.d: Likewise.
* ld-frv/tls-relax-shared-2.d: Likewise.
* ld-frv/tls-shared-2.d: Likewise.
* ld-i386/plt-nacl.pd: Likewise.
* ld-i386/plt-pic-nacl.pd: Likewise.
* ld-i386/plt-pic.pd: Likewise.
* ld-i386/plt.pd: Likewise.
* ld-i386/pr19636-1d-nacl.d: Likewise.
* ld-i386/pr19636-1d.d: Likewise.
* ld-i386/pr19636-2c-nacl.d: Likewise.
* ld-i386/pr19636-2c.d: Likewise.
* ld-ifunc/ifunc-21-x86-64.d: Likewise.
* ld-ifunc/ifunc-22-x86-64.d: Likewise.
* ld-ifunc/pr17154-i386.d: Likewise.
* ld-ifunc/pr17154-x86-64.d: Likewise.
* ld-m68k/plt1-68020.d: Likewise.
* ld-m68k/plt1-cpu32.d: Likewise.
* ld-m68k/plt1-isab.d: Likewise.
* ld-m68k/plt1-isac.d: Likewise.
* ld-metag/shared.d: Likewise.
* ld-metag/stub_pic_app.d: Likewise.
* ld-metag/stub_pic_shared.d: Likewise.
* ld-metag/stub_shared.d: Likewise.
* ld-s390/tlsbin_64.dd: Likewise.
* ld-s390/tlspic_64.dd: Likewise.
* ld-tic6x/shlib-1.dd: Likewise.
* ld-tic6x/shlib-1b.dd: Likewise.
* ld-tic6x/shlib-1rb.dd: Likewise.
* ld-tic6x/shlib-app-1.dd: Likewise.
* ld-tic6x/shlib-app-1b.dd: Likewise.
* ld-tic6x/shlib-app-1r.dd: Likewise.
* ld-tic6x/shlib-app-1rb.dd: Likewise.
* ld-tic6x/shlib-noindex.dd: Likewise.
* ld-vax-elf/export-class-data.dd: Likewise.
* ld-vax-elf/plt-local-lib.dd: Likewise.
* ld-vax-elf/plt-local.dd: Likewise.
* ld-x86-64/bnd-ifunc-2.d: Likewise.
* ld-x86-64/bnd-plt-1.d: Likewise.
* ld-x86-64/gotpcrel1.dd: Likewise.
* ld-x86-64/libno-plt-1b.dd: Likewise.
* ld-x86-64/load1c-nacl.d: Likewise.
* ld-x86-64/load1c.d: Likewise.
* ld-x86-64/load1d-nacl.d: Likewise.
* ld-x86-64/load1d.d: Likewise.
* ld-x86-64/mov1a.d: Likewise.
* ld-x86-64/mov1b.d: Likewise.
* ld-x86-64/mov1c.d: Likewise.
* ld-x86-64/mov1d.d: Likewise.
* ld-x86-64/mov2a.d: Likewise.
* ld-x86-64/mov2b.d: Likewise.
* ld-x86-64/mov2c.d: Likewise.
* ld-x86-64/mov2d.d: Likewise.
* ld-x86-64/mpx3.dd: Likewise.
* ld-x86-64/mpx4.dd: Likewise.
* ld-x86-64/no-plt-1a.dd: Likewise.
* ld-x86-64/no-plt-1b.dd: Likewise.
* ld-x86-64/no-plt-1c.dd: Likewise.
* ld-x86-64/no-plt-1e.dd: Likewise.
* ld-x86-64/no-plt-1f.dd: Likewise.
* ld-x86-64/no-plt-1g.dd: Likewise.
* ld-x86-64/plt-main-bnd.dd: Likewise.
* ld-x86-64/plt-nacl.pd: Likewise.
* ld-x86-64/plt.pd: Likewise.
* ld-x86-64/pr18591.d: Likewise.
* ld-x86-64/pr19609-1c.d: Likewise.
* ld-x86-64/pr19609-1e.d: Likewise.
* ld-x86-64/pr19609-1j.d: Likewise.
* ld-x86-64/pr19609-1l.d: Likewise.
* ld-x86-64/pr19609-1m.d: Likewise.
* ld-x86-64/pr19609-5b.d: Likewise.
* ld-x86-64/pr19609-5c.d: Likewise.
* ld-x86-64/pr19609-5e.d: Likewise.
* ld-x86-64/pr19609-6b.d: Likewise.
* ld-x86-64/pr19609-7b.d: Likewise.
* ld-x86-64/pr19609-7d.d: Likewise.
* ld-x86-64/pr19636-2d.d: Likewise.
* ld-x86-64/pr20093-1.d: Likewise.
* ld-x86-64/pr20093-2.d: Likewise.
* ld-x86-64/pr20253-1b.d: Likewise.
* ld-x86-64/pr20253-1d.d: Likewise.
* ld-x86-64/pr20253-1f.d: Likewise.
* ld-x86-64/pr20253-1h.d: Likewise.
* ld-x86-64/pr20253-1j.d: Likewise.
* ld-x86-64/pr20253-1l.d: Likewise.
* ld-x86-64/protected3.d: Likewise.
* ld-x86-64/tlsbin.dd: Likewise.
* ld-x86-64/tlsbin2.dd: Likewise.
* ld-x86-64/tlsbindesc.dd: Likewise.
* ld-x86-64/tlsdesc-nacl.pd: Likewise.
* ld-x86-64/tlsdesc.dd: Likewise.
* ld-x86-64/tlsdesc.pd: Likewise.
* ld-x86-64/tlsgd10.dd: Likewise.
* ld-x86-64/tlsgd5.dd: Likewise.
* ld-x86-64/tlsgd6.dd: Likewise.
* ld-x86-64/tlsgd8.dd: Likewise.
* ld-x86-64/tlsgdesc.dd: Likewise.
* ld-x86-64/tlspic.dd: Likewise.
* ld-x86-64/tlspic2.dd: Likewise.

2016-10-11  Nick Clifton  <nickc@redhat.com>

PR ld/20535
* emultempl/elf32.em (_search_needed): Add support for pseudo
environment variables supported by ld.so.  Namely $ORIGIN, $LIB
and $PLATFORM.
* configure.ac: Add getauxval to list AC_CHECK_FUNCS list.
* config.in: Regenerate.
* configure: Regenerate.

2016-10-11  Alan Modra  <amodra@gmail.com>

* ldlang.c (lang_do_assignments_1): Descend into output section
statements that do not yet have bfd sections.  Set symbol section
temporarily for symbols defined in such statements to the undefined
section.  Don't error on data or reloc statements until final phase.
* ldexp.c (exp_fold_tree_1 <etree_assign>): Handle bfd_und_section
in expld.section.
* testsuite/ld-mmix/bpo-10.d: Adjust.
* testsuite/ld-mmix/bpo-11.d: Adjust.

2016-10-10  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

* emulparams/elf64_s390.sh: Move binary start to 16M.
* testsuite/ld-s390/tlsbin_64.dd: Adjust testcases accordingly.
* testsuite/ld-s390/tlsbin_64.rd: Likewise.

2016-10-07  Alan Modra  <amodra@gmail.com>

* ldexp.c (MAX): Define.
(exp_unop, exp_binop, exp_trinop): Alloc at least enough for
etree_type.value.

2016-10-07  Alan Modra  <amodra@gmail.com>

* testsuite/lib/ld-lib.exp (is_generic_elf): New, extracted from..
* testsuite/ld-elf/elf.exp: ..here.

2016-10-06  Ludovic Court?s  <ludo@gnu.org>

* emulparams/elf32bmipn32-defs.sh: Shift quote of
"x$EMULATION_NAME" to the left to work around
<http://ftp.gnu.org/gnu/bash/bash-4.2-patches/bash42-007>.

2016-10-06  Alan Modra  <amodra@gmail.com>

* lexsup.c: Spell fall through comments consistently and add
missing fall through comments.

2016-10-06  Alan Modra  <amodra@gmail.com>

* plugin.c (asymbol_from_plugin_symbol): Avoid compiler warning
by adding return.

2016-10-04  Alan Modra  <amodra@gmail.com>

* ld.texinfo (Expression Section): Update result of arithmetic
expressions.
* ldexp.c (arith_result_section): New function.
(fold_binary): Use it.

2016-10-04  Alan Modra  <amodra@gmail.com>

* ldexp.c (exp_value_fold): New function.
(exp_unop, exp_binop, exp_trinop): Use it.

2016-09-30  Alan Modra  <amodra@gmail.com>

* scripttempl/v850.sc: Don't reference __ctbp, __ep, __gp when
not relocating.
* scripttempl/v850_rh850.sc: Likewise.

2016-09-30  Alan Modra  <amodra@gmail.com>

PR ld/20528
* testsuite/ld-elf/pr20528a.d: xfail generic elf targets.  Allow
multiple .text sections for hppa-linux.
* testsuite/ld-elf/pr20528b.d: Likewise.

2016-09-30  Alan Modra  <amodra@gmail.com>

* ldmain.c (default_bfd_error_handler): New function pointer.
(ld_bfd_error_handler): New function.
(main): Arrange to call it on bfd errors/warnings.
(ld_bfd_assert_handler): Enable tail call.

2016-09-30  Alan Modra  <amodra@gmail.com>

* ldlang.c (ignore_bfd_errors): Update params.

2016-09-29  H.J. Lu  <hongjiu.lu@intel.com>

PR ld/20528
* emultempl/elf32.em (gld${EMULATION_NAME}_place_orphan): Don't
merge 2 sections with different SHF_EXCLUDE.
* testsuite/ld-elf/pr20528a.d: New file.
* testsuite/ld-elf/pr20528a.s: Likewise.
* testsuite/ld-elf/pr20528b.d: Likewise.
* testsuite/ld-elf/pr20528b.s: Likewise.

2016-09-28  Christophe Lyon  <christophe.lyon@linaro.org>

PR ld/20608
* testsuite/ld-arm/arm-elf.exp: Handle new testcase.
* testsuite/ld-arm/farcall-mixed-app2.d: New file.
* testsuite/ld-arm/farcall-mixed-app2.r: Likewise.
* testsuite/ld-arm/farcall-mixed-app2.s: Likewise.
* testsuite/ld-arm/farcall-mixed-app2.sym: Likewise.

2016-09-26  Vlad Zakharov  <vzakhar@synopsys.com>

* Makefile.in: Regenerate.
* configure: Likewise.

2016-09-26  Alan Modra  <amodra@gmail.com>

* testsuite/ld-powerpc/attr-gnu-4-4.s: Delete.
* testsuite/ld-powerpc/attr-gnu-4-14.d: Delete.
* testsuite/ld-powerpc/attr-gnu-4-24.d: Delete.
* testsuite/ld-powerpc/attr-gnu-4-34.d: Delete.
* testsuite/ld-powerpc/attr-gnu-4-41.d: Delete.
* testsuite/ld-powerpc/attr-gnu-4-32.d: Adjust expected warning.
* testsuite/ld-powerpc/attr-gnu-8-23.d: Likewise.
* testsuite/ld-powerpc/attr-gnu-4-01.d: Adjust expected output.
* testsuite/ld-powerpc/attr-gnu-4-02.d: Likewise.
* testsuite/ld-powerpc/attr-gnu-4-03.d: Likewise.
* testsuite/ld-powerpc/attr-gnu-4-10.d: Likewise.
* testsuite/ld-powerpc/attr-gnu-4-11.d: Likewise.
* testsuite/ld-powerpc/attr-gnu-4-20.d: Likewise.
* testsuite/ld-powerpc/attr-gnu-4-22.d: Likewise.
* testsuite/ld-powerpc/attr-gnu-4-33.d: Likewise.
* testsuite/ld-powerpc/attr-gnu-8-11.d: Likewise.
* testsuite/ld-powerpc/powerpc.exp: Don't run deleted tests.

2016-09-23  Akihiko Odaki  <akihiko.odaki.4i@stu.hosei.ac.jp>

PR ld/20595
* testsuite/ld-arm/unwind-4.d: Add -q option to linker command
line and -r option to objdump command line.  Match emitted relocs
to make sure that superflous relocs are not generated.

2016-09-23  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

* emulparams/elf64_s390.sh: Change TEXT_START_ADDR to 256MB.
* testsuite/ld-s390/tlsbin_64.dd: Adjust testcase accordingly.
* testsuite/ld-s390/tlsbin_64.rd: Likewise.

2016-09-22  Nick Clifton  <nickc@redhat.com>

* emultempl/elf32.em (_try_needed): In verbose mode, report failed
attempts to find a needed library.

2016-09-21  Richard Sandiford  <richard.sandiford@arm.com>

* testsuite/ld-aarch64/emit-relocs-28.d: Expect spaces after ","
in addresses.
* testsuite/ld-aarch64/emit-relocs-301-be.d: Likewise.
* testsuite/ld-aarch64/emit-relocs-301.d: Likewise.
* testsuite/ld-aarch64/emit-relocs-302-be.d: Likewise.
* testsuite/ld-aarch64/emit-relocs-302.d: Likewise.
* testsuite/ld-aarch64/emit-relocs-310-be.d: Likewise.
* testsuite/ld-aarch64/emit-relocs-310.d: Likewise.
* testsuite/ld-aarch64/emit-relocs-313.d: Likewise.
* testsuite/ld-aarch64/emit-relocs-515-be.d: Likewise.
* testsuite/ld-aarch64/emit-relocs-515.d: Likewise.
* testsuite/ld-aarch64/emit-relocs-516-be.d: Likewise.
* testsuite/ld-aarch64/emit-relocs-516.d: Likewise.
* testsuite/ld-aarch64/emit-relocs-531.d: Likewise.
* testsuite/ld-aarch64/emit-relocs-532.d: Likewise.
* testsuite/ld-aarch64/emit-relocs-533.d: Likewise.
* testsuite/ld-aarch64/emit-relocs-534.d: Likewise.
* testsuite/ld-aarch64/emit-relocs-535.d: Likewise.
* testsuite/ld-aarch64/emit-relocs-536.d: Likewise.
* testsuite/ld-aarch64/emit-relocs-537.d: Likewise.
* testsuite/ld-aarch64/emit-relocs-538.d: Likewise.
* testsuite/ld-aarch64/erratum835769.d: Likewise.
* testsuite/ld-aarch64/erratum843419.d: Likewise.
* testsuite/ld-aarch64/farcall-b-plt.d: Likewise.
* testsuite/ld-aarch64/farcall-bl-plt.d: Likewise.
* testsuite/ld-aarch64/gc-plt-relocs.d: Likewise.
* testsuite/ld-aarch64/ifunc-21.d: Likewise.
* testsuite/ld-aarch64/ifunc-7c.d: Likewise.
* testsuite/ld-aarch64/tls-desc-ie.d: Likewise.
* testsuite/ld-aarch64/tls-large-desc-be.d: Likewise.
* testsuite/ld-aarch64/tls-large-desc.d: Likewise.
* testsuite/ld-aarch64/tls-large-ie-be.d: Likewise.
* testsuite/ld-aarch64/tls-large-ie.d: Likewise.
* testsuite/ld-aarch64/tls-relax-all.d: Likewise.
* testsuite/ld-aarch64/tls-relax-gd-ie.d: Likewise.
* testsuite/ld-aarch64/tls-relax-gdesc-ie-2.d: Likewise.
* testsuite/ld-aarch64/tls-relax-gdesc-ie.d: Likewise.
* testsuite/ld-aarch64/tls-relax-large-desc-ie-be.d: Likewise.
* testsuite/ld-aarch64/tls-relax-large-desc-ie.d: Likewise.
* testsuite/ld-aarch64/tls-tiny-desc.d: Likewise.
* testsuite/ld-aarch64/tls-tiny-gd.d: Likewise.

gas * gas/arm/tls.d: Adjust output to match change in objdump.

Add support to the static linker for the tokens accepted by the dynamic linker when resolving search paths.

PR ld/20535
* emultempl/elf32.em (_search_needed): Add support for pseudo
environment variables supported by ld.so.  Namely $ORIGIN, $LIB
and $PLATFORM.
* configure.ac: Add getauxval to list AC_CHECK_FUNCS list.
* config.in: Regenerate.
* configure: Regenerate.

[AArch64] PR target/20666, fix wrong encoding of new introduced BFC pseudo

opcode/
PR target/20666
* aarch64-asm.c (convert_bfc_to_bfm): Fix dest index.

gas/
* testsuite/gas/aarch64/alias-2.d: Update expected results.

Always descend into output section statements in lang_do_assignments

See https://sourceware.org/ml/binutils/2016-07/msg00091.html
This patch stop --gc-sections elf_gc_sweep_symbol localizing symbols
that ought to remain global.

The difficulty with always descending into output section statements
is that symbols defined by the script in such statements don't have
a bfd section when lang_do_assignments runs early in the link process.
There are two approaches to curing this problem.  Either we can
create the bfd section early, or we can use a special section.  This
patch takes the latter approach and uses bfd_und_section.  (Creating
bfd sections early results in changed output section order, and thus
lots of testsuite failures.  You can't create all output sections
early to ensure proper ordering as KEEP then stops empty sections
from being stripped.)

The wrinkle with this approach is that some code that runs at
gc-sections time needs to be made aware of the odd defined symbols
using bfd_und_section.

bfd/
* elf64-x86-64.c (elf_x86_64_convert_load_reloc): Handle symbols
defined temporarily with bfd_und_section.
* elflink.c (_bfd_elf_gc_keep): Don't set SEC_KEEP for bfd_und_section.
* elfxx-mips.c (mips_elf_local_pic_function_p): Exclude defined
symbols with bfd_und_section.
ld/
* ldlang.c (lang_do_assignments_1): Descend into output section
statements that do not yet have bfd sections.  Set symbol section
temporarily for symbols defined in such statements to the undefined
section.  Don't error on data or reloc statements until final phase.
* ldexp.c (exp_fold_tree_1 <etree_assign>): Handle bfd_und_section
in expld.section.
* testsuite/ld-mmix/bpo-10.d: Adjust.
* testsuite/ld-mmix/bpo-11.d: Adjust.

Automatic date update in version.in

S/390: Move binary start to 16M.

Turned out that by moving the binary start to 256M I've hit a case with
potentially a lot of aliasing in the branch target buffer between
binaries and shared libs.  So moving on.

Tested on s390x. No regressions.

ld/ChangeLog:

2016-10-10  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

* emulparams/elf64_s390.sh: Move binary start to 16M.
* testsuite/ld-s390/tlsbin_64.dd: Adjust testcases accordingly.
* testsuite/ld-s390/tlsbin_64.rd: Likewise.

bfd/ChangeLog: Add missing PR ld/19908 reference

MIPS64: Adjust cfi* testcases.

The CFI* testcases fail on MIPS64 because the augmentation string does
not match the regexp. This is because MIPS64 doesn't use the default of
4 for DWARF2_FDE_RELOC_SIZE which ends up as "b" in the augmentation
string. MIPS64 uses the address size which is 8 resulting in "c".

Adding c to the regexp fixes a couple of them. Others also need
adjustments in the FDE header lines due to different
sizes/offsets.

gas/ChangeLog:

2016-10-10  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

* testsuite/gas/cfi/cfi-common-1.d: Adjust regexps for mips64.
* testsuite/gas/cfi/cfi-common-2.d: Likewise.
* testsuite/gas/cfi/cfi-common-3.d: Likewise.
* testsuite/gas/cfi/cfi-common-4.d: Likewise.
* testsuite/gas/cfi/cfi-common-5.d: Likewise.
* testsuite/gas/cfi/cfi-common-7.d: Likewise.
* testsuite/gas/cfi/cfi-common-8.d: Likewise.
* testsuite/gas/cfi/cfi-common-9.d: Likewise.
* testsuite/gas/cfi/cfi-mips-1.d: Likewise.

Share enum arm_breakpoint_kinds

This patch shares "enum arm_breakpoint_kinds", and use ARM_BP_KIND_THUMB2
in GDB.

gdb:

2016-10-10  Yao Qi  <yao.qi@linaro.org>

* arch/arm.h (enum arm_breakpoint_kinds): New.
* arm-tdep.c (arm_remote_breakpoint_from_pc): Use
ARM_BP_KIND_THUMB2.

gdb/gdbserver:

2016-10-10  Yao Qi  <yao.qi@linaro.org>

* linux-aarch32-low.c (enum arm_breakpoint_kinds): Remove.

Rename 'arch' by 'gdbarch' in m32c_gdbarch_init

This patch renames local 'arch' by 'gdbarch' in m32c_gdbarch_init, so
that I can use macros in the following patch.

gdb:

2016-10-10  Yao Qi  <yao.qi@linaro.org>

* m32c-tdep.c (m32c_gdbarch_init): Rename local 'arch' by
'gdbarch'.

Remove v850_dbtrap_breakpoint_from_pc

v850 has two functions to install to gdbarch_breakpoint_from_pc,
and it selects one according to info.bfd_arch_info->mach.  However,
we can select the kind/length of breakpoint instruction inside
v850_breakpoint_from_pc by gdbarch_bfd_arch_info (gdbarch)->mach.
This patch is to do that, and remove v850_dbtrap_breakpoint_from_pc.

gdb:

2016-08-30  Yao Qi  <yao.qi@linaro.org>

* v850-tdep.c (v850_breakpoint_from_pc): Use the right
breakpoint instruction.
(v850_dbtrap_breakpoint_from_pc): Remove.
(v850_gdbarch_init): Update.

Automatic date update in version.in

Automatic date update in version.in

ui-out.c: Remove unused parameter to push_level

The parameter "id" is unused.

gdb/ChangeLog:

* ui-out.c (push_level): Remove "id" parameter.
(ui_out_begin): Update call.

Auto-generated dependencies for rx-parse.o and rl78-parse.o

I noticed a while ago that the rx-elf gas gprel test regressed for no
apparent reason.  It turns out that the problem was rx-parse.y using
BFD_RELOC_RX_* values, which may change when other targets add new
relocs.  If rx-parse.o doesn't depend on bfd.h, it won't be recompiled.

* Makefile.am (EXTRA_as_new_SOURCES): Add config/rl78-parse.y and
config/rx-parse.y.  Move config/bfin-parse.y.
(bfin-parse.@OBJEXT@, rl78-parse.@OBJEXT@, rx-parse.@OBJEXT@): Delete.
($(srcdir)/config/rl78-defs.h): New rule.
* Makefile.in: Regenerate.

Automatic date update in version.in

Document the GDB 7.12 release in gdb/ChangeLog

gdb/ChangeLog:

GDB 7.12 released.

Fold arithmetic integer expressions fallout

* ldexp.c (MAX): Define.
(exp_unop, exp_binop, exp_trinop): Alloc at least enough for
etree_type.value.

[AArch64] PR target/20667, fix disassembler for the "special" optional SYS_Rt operand for "ic"/"tlbi"

gas/
PR target/20667
* testsuite/gas/aarch64/sys-rt-reg.s: Test source for instructions
using SYS_Rt reg.
* testsuite/gas/aarch64/sys-rt-reg.d: New testcase.

opcodes/
PR target/20667
* aarch64-opc.c (aarch64_print_operand): Always print operand if
it's available.

Set regdir in tdesc-regs.exp or arm

0a69eedb (Clean up the XML files for ARM) moves arm-*.xml files to
arm/ directory, so need update gdb.xml/tdesc-regs.exp accordingly.

gdb/testsuite:

2016-10-07  Yao Qi  <yao.qi@linaro.org>

* gdb.xml/tdesc-regs.exp: Set regdir to "arm/".

python: accept address and explicit locations in gdb.decode_line

The gdb.decode_line python function is documented to support the same location
expressions as the "break" command.  It currently expects a linespec location.

Instead of creating a linespec location directly, create the location via
string_to_event_location_basic.

Pass link_info to _bfd_merge_private_bfd_data

Most BFD linker functions take a bfd_link_info param, which reinforces
the fact that they are linker functions and allow access to linker
callbacks, eg. einfo for printing errors.  I was going to use einfo
for --fatal-warnings support before I decided a better way was the
patch commit 4519d071.

bfd/
* targets.c (bfd_target <_bfd_merge_private_bfd_data>): Replace
obfd param with struct bfd_link_info param.  Update all callers.
* linker.c (bfd_merge_private_bfd_data): Likewise.
(_bfd_generic_verify_endian_match): Likewise.
* aoutf1.h (sunos_merge_private_bfd_data): Likewise.
* coff-arm.c (coff_arm_merge_private_bfd_data): Likewise.
* elf-attrs.c (_bfd_elf_merge_object_attributes): Likewise.
* elf-bfd.h (_bfd_elf_ppc_merge_fp_attributes): Likewise.
(_bfd_elf_merge_object_attributes): Likewise.
* elf-m10300.c (_bfd_mn10300_elf_merge_private_bfd_data): Likewise.
* elf-s390-common.c (elf_s390_merge_obj_attributes): Likewise.
* elf32-arc.c (arc_elf_merge_private_bfd_data): Likewise.
* elf32-arm.c (elf32_arm_merge_eabi_attributes): Likewise.
(elf32_arm_merge_private_bfd_data): Likewise.
* elf32-bfin.c (elf32_bfin_merge_private_bfd_data): Likewise.
* elf32-cr16.c (_bfd_cr16_elf_merge_private_bfd_data): Likewise.
* elf32-cris.c (cris_elf_merge_private_bfd_data): Likewise.
* elf32-frv.c (frv_elf_merge_private_bfd_data): Likewise.
* elf32-h8300.c (elf32_h8_merge_private_bfd_data): Likewise.
* elf32-i370.c (i370_elf_merge_private_bfd_data): Likewise.
* elf32-iq2000.c (iq2000_elf_merge_private_bfd_data): Likewise.
* elf32-m32c.c (m32c_elf_merge_private_bfd_data): Likewise.
* elf32-m32r.c (m32r_elf_merge_private_bfd_data): Likewise.
* elf32-m68hc1x.c (_bfd_m68hc11_elf_merge_private_bfd_data): Likewise.
* elf32-m68hc1x.h (_bfd_m68hc11_elf_merge_private_bfd_data): Likewise.
* elf32-m68k.c (elf32_m68k_merge_private_bfd_data): Likewise.
* elf32-mcore.c (mcore_elf_merge_private_bfd_data): Likewise.
* elf32-mep.c (mep_elf_merge_private_bfd_data): Likewise.
* elf32-msp430.c (elf32_msp430_merge_mspabi_attributes): Likewise.
(elf32_msp430_merge_private_bfd_data): Likewise.
* elf32-mt.c (mt_elf_merge_private_bfd_data): Likewise.
* elf32-nds32.c (nds32_elf_merge_private_bfd_data): Likewise.
* elf32-nios2.c (nios2_elf32_merge_private_bfd_data): Likewise.
* elf32-or1k.c (elf32_or1k_merge_private_bfd_data): Likewise.
* elf32-ppc.c (_bfd_elf_ppc_merge_fp_attributes): Likewise.
(ppc_elf_merge_obj_attributes): Likewise.
(ppc_elf_merge_private_bfd_data): Likewise.
* elf32-rl78.c (rl78_elf_merge_private_bfd_data): Likewise.
* elf32-rx.c (rx_elf_merge_private_bfd_data): Likewise.
* elf32-s390.c (elf32_s390_merge_private_bfd_data): Likewise.
* elf32-score.c (s3_elf32_score_merge_private_bfd_data): Likewise.
(elf32_score_merge_private_bfd_data): Likewise.
* elf32-score.h (s7_elf32_score_merge_private_bfd_data): Likewise.
* elf32-score7.c (s7_elf32_score_merge_private_bfd_data): Likewise.
* elf32-sh.c (sh_merge_bfd_arch, sh_elf_merge_private_data): Likewise.
* elf32-sh64.c (sh64_elf_merge_private_data): Likewise.
* elf32-sparc.c (elf32_sparc_merge_private_bfd_data): Likewise.
* elf32-tic6x.c (elf32_tic6x_merge_attributes): Likewise.
(elf32_tic6x_merge_private_bfd_data): Likewise.
* elf32-v850.c (v850_elf_merge_private_bfd_data): Likewise.
* elf32-vax.c (elf32_vax_merge_private_bfd_data): Likewise.
* elf32-visium.c (visium_elf_merge_private_bfd_data): Likewise.
* elf32-xtensa.c (elf_xtensa_merge_private_bfd_data): Likewise.
* elf64-ia64-vms.c (elf64_ia64_merge_private_bfd_data): Likewise.
* elf64-ppc.c (ppc64_elf_merge_private_bfd_data): Likewise.
* elf64-s390.c (elf64_s390_merge_private_bfd_data): Likewise.
* elf64-sh64.c (sh_elf64_merge_private_data): Likewise.
* elf64-sparc.c (elf64_sparc_merge_private_bfd_data): Likewise.
* elfnn-aarch64.c (elfNN_aarch64_merge_private_bfd_data): Likewise.
* elfnn-ia64.c (elfNN_ia64_merge_private_bfd_data): Likewise.
* elfxx-mips.c (mips_elf_merge_obj_e_flags): Likewise.
(mips_elf_merge_obj_attributes): Likewise.
(_bfd_mips_elf_merge_private_bfd_data): Likewise.
* elfxx-mips.h (_bfd_mips_elf_merge_private_bfd_data): Likewise.
* elfxx-sparc.c (_bfd_sparc_elf_merge_private_bfd_data): Likewise.
* elfxx-sparc.h (_bfd_sparc_elf_merge_private_bfd_data): Likewise.
* elfxx-target.h (bfd_elfNN_bfd_merge_private_bfd_data): Likewise.
* elfxx-tilegx.c (_bfd_tilegx_elf_merge_private_bfd_data): Likewise.
* elfxx-tilegx.h (_bfd_tilegx_elf_merge_private_bfd_data): Likewise.
* libbfd-in.h (_bfd_generic_bfd_merge_private_bfd_data): Likewise.
* bfd-in2.h: Regenerate.
* libbfd.h: Regenerate.
ld/
* ldlang.c (lang_check): Update bfd_merge_private_bfd_data call.

bfd_merge_private_bfd_data tidy

bfd_merge_private_bfd_data and _bfd_generic_verify_endian_match are
linker functions, so move them to linker.c.

bfd/
* Makefile.am (LIBBFD_H_FILES): Update.
* doc/Makefile.am (LIBBFD_H_DEP): Likewise.
* cpu-sh.c (sh_merge_bfd_arch): Move to..
* elf32-sh.c: ..here, and make static.
* elf32-arc.c (arc_elf_merge_private_bfd_data): Delete extraneous
error.
* elf32-cris.c (cris_elf_merge_private_bfd_data): Don't call
_bfd_generic_verify_endian_match.
* elf32-microblaze.c (microblaze_elf_merge_private_bfd_data): Delete.
(bfd_elf32_bfd_merge_private_bfd_data): Define as
_bfd_generic_verify_endian_match.
* elf32-mt.c (mt_elf_merge_private_bfd_data): Don't test
boolean == FALSE.
* elf32-xgate.c (_bfd_xgate_elf_merge_private_bfd_data): Delete.
(bfd_elf32_bfd_merge_private_bfd_data): Don't define.
* elf32-xgate.h (_bfd_xgate_elf_merge_private_bfd_data): Delete.
* libbfd-in.h (_bfd_generic_verify_endian_match): Delete.
* libbfd.c (_bfd_generic_verify_endian_match): Move to..
* linker.c: ..here, and make internal.
* bfd.c (bfd_merge_private_bfd_data): Move to..
* linker.c: ..here.
* Makefile.in: Regenerate.
* doc/Makefile.in: Regenerate.
* bfd-in2.h: Regenerate.
* libbfd.h: Regenerate.
opcodes/
* sh-opc.h (sh_merge_bfd_arch): Delete prototype.

Add is_generic_elf to ld/ld-lib.exp

* testsuite/lib/ld-lib.exp (is_generic_elf): New, extracted from..
* testsuite/ld-elf/elf.exp: ..here.

Automatic date update in version.in

Consolidate API of target_supports_multi_process

This simple commit consolidates the API of
target_supports_multi_process.  Since both GDB and gdbserver use the
same function prototype, all that was needed was to move create this
prototype on gdb/target/target.h and turn the macros declared on
gdb/{,gdbserver/}target.h into actual functions.

Regtested (clean pass) on the BuildBot.

gdb/ChangeLog:
2016-10-06  Sergio Durigan Junior  <sergiodj@redhat.com>

* target.c (target_supports_multi_process): New function, moved
from...
* target.h (target_supports_multi_process): ... here.  Remove
macro.
* target/target.h (target_supports_multi_process): New prototype.

gdb/gdbserver/ChangeLog:
2016-10-06  Sergio Durigan Junior  <sergiodj@redhat.com>

* target.c (target_supports_multi_process): New function, moved
from...
* target.h (target_supports_multi_process): ... here.  Remove
macro.

gdb: Remove some C compiler support leftovers

Remove some __cplusplus checks, inline EXPORTED_CONST, and update some comments.

gdb/ChangeLog:
2016-10-06  Pedro Alves  <palves@redhat.com>

* cp-valprint.c (vtbl_ptr_name): Write "extern const" instead of
EXPORTED_CONST.
* stub-termcap.c: Remove __cplusplus checks.
* common/common-defs.h [!__cplusplus] (EXTERN_C, EXTERN_C_PUSH,
EXTERN_C_POP): Delete.
* common/common-exceptions.h (GDB_XCPT_SJMP): Update comments.
(GDB_XCPT) [!__cplusplus]: Delete.
(throw_exception, throw_exception_sjlj): Update comments.
* guile/guile-internal.h (as_a_scm_t_subr) [!__cplusplus]: Delete.
* guile/guile.c (extension_language_guile): Write "extern const"
instead of EXPORTED_CONST.
* features/feature_to_c.sh: Don't emit !__cplusplus code.  Write
"extern const" instead of EXPORTED_CONST.

Fix gdb.Value->python conversion for large unsigned ints.

gdb/ChangeLog:

* python/py-value.c (valpy_long): Handle unsigned values.

gdb/testsuite/ChangeLog:

* gdb.python/py-value.exp (test_value_creation): Add test for large
unsigned 64-bit value.

frame.h: Forward-declare struct ui_out

Fixes this failure when building in C mode.  I think it's relevant for master
as well, since it's a good practice to include (or forward-declare) what you
use.

In file included from ../../binutils-gdb/gdb/gdbarch.h:38:0,
                 from ../../binutils-gdb/gdb/defs.h:653,
                 from ../../binutils-gdb/gdb/dictionary.c:23:
../../binutils-gdb/gdb/frame.h:710:48: warning: ‘struct ui_out’ declared inside parameter list will not be visible outside of this definition or declaration
 extern void print_stack_frame_to_uiout (struct ui_out *uiout,

gdb/ChangeLog:

* frame.h: Forward-declare struct ui_out.

Remove Java support

This patch removes the Java support from gdb.  gcj has not seen much
development or use for years now, and was recently removed from GCC.
This patch changes gdb to follow; in the unlikely event that there are
still users using gcj, they can continue to use an older gdb to debug.
Or, they can debug in C++ mode.

Built and regtested on x86-64 Fedora 24.

2016-10-06  Tom Tromey  <tom@tromey.com>

* MAINTAINERS: Remove Java test maintainer.
* varobj.h (java_varobj_ops): Don't declare.
* valprint.h (struct value_print_options)
<pascal_static_field_print>: Update comment.
* utils.c (producer_is_gcc): Remove java reference.
* symtab.h (struct general_symbol_info): Remove java references.
(SYMBOL_SEARCH_NAME): Likewise.
* objfiles.c (allocate_objfile): Update comment.
* linespec.c (find_linespec_symbols): Remove java references.
* gnu-v3-abi.c (gnuv3_rtti_type, gnuv3_baseclass_offset): Remove
java references.
* gdbtypes.h (struct cplus_struct_type) <is_java>: Remove.
(TYPE_CPLUS_REALLY_JAVA): Remove.
* c-varobj.c (enum vsections): Update comment.
* symtab.c (symbol_set_language, symbol_set_names)
(symbol_natural_name, symbol_demangled_name)
(demangle_for_lookup, symbol_matches_domain)
(default_make_symbol_completion_list_break_on_1): Remove java
references.
(JAVA_PREFIX, JAVA_PREFIX_LEN): Remove.
* psymtab.c (match_partial_symbol, psymtab_search_name)
(lookup_partial_symbol): Remove java references.
* dwarf2read.c (find_slot_in_mapped_hash): Remove java references.
(add_partial_symbol, dwarf2_compute_name, dwarf2_physname)
(dwarf2_add_member_fn, is_vtable_name, read_structure_type)
(process_structure_scope, read_subroutine_type)
(read_subrange_type, load_partial_dies)
(new_symbol_full, determine_prefix, typename_concat)
(dwarf2_name): Remove java references.
(set_cu_language): Treat Java as C++.
* c-typeprint.c (c_type_print_args): Remove java reference.
* defs.h (enum language) <language_java>: Remove.
* Makefile.in (SFILES, HFILES_NO_SRCDIR, COMMON_OBS, YYFILES)
(YYOBJ, local-maintainer-clean): Don't mention java files.
* jv-exp.y, jv-lang.c, jv-lang.h, jv-typeprint.c, jv-valprint.c,
jv-varobj.c: Remove.

2016-10-06  Tom Tromey  <tom@tromey.com>

* guile.texi (Types In Guile): Remove Java mentions.
* python.texi (Types In Python): Remove Java mentions.
* gdb.texinfo (Address Locations, Supported Languages)
(Index Section Format): Remove Java mentions.

2016-10-06  Tom Tromey  <tom@tromey.com>

* gdb.compile/compile.exp: Change java tests to rust.
* gdb.base/setshow.exp: Change java tests to rust.
* gdb.base/default.exp: Remove java from language list.
* README (Examples): Update language example.
* gdb.python/py-lookup-type.exp (test_lookup_type): Remove java
test.
* lib/gdb.exp (skip_java_tests): Remove.
* lib/java.exp: Remove.
* gdb.java: Remove.

mips-tdep: Make FCRs always 32-bit

Fix a regression from commit f8b73d13b7ca ("Target-described register
support for MIPS"),
<https://sourceware.org/ml/gdb-patches/2007-05/msg00340.html>,
<https://sourceware.org/ml/gdb-patches/2007-06/msg00256.html>, which
caused Floating Point Control Registers (FCRs) to be shown as 64-bit
with 64-bit targets.

This came from the legacy register format where all raw registers
matched the width of the architecture regardless of their actual size.
The correct size was then set in `mips_register_type' for cooked
registers presented to the user, which in the case of FCRs meant the
cooked size was always forced to 32 bits, reflecting their actual
hardware size, even though the raw format carried them in 64-bit
quantities on 64-bit targets.  The upper 32 bits carried in the raw FCR
format have always been don't-cares, not actually retrieved from
hardware and never written back.

With the introduction of XML register descriptions the layout of
previously defined raw registers has been preserved, so as to keep
existing register handling code unchanged and make it easier for GDB and
`gdbserver' to interact with each other whether neither, either or both
parties talking over RSP support XML register descriptions.  For the
XML-described case however `mips_register_type' is not used in raw to
cooked register conversion, so any special cases coded there are not
taken into account.

Instead a new function, `mips_pseudo_register_type', has been introduced
to handle size conversion, however lacking the special case for FCRs for
the Linux and the now defunct IRIX target.  The correct size has been
maintained for embedded targets however, due to the bundling of FCRs
with the embedded registers under the `rawnum >= MIPS_EMBED_FP0_REGNUM +
32' condition.

Add the missing case to `mips_pseudo_register_type' then, referring to
the FCR indices explicitly, and observing that between
`MIPS_EMBED_FP0_REGNUM + 32' and `MIPS_FIRST_EMBED_REGNUM' there is an
unused register slot whose contents are ignored so with the removal of
embedded FCRs from under that condition we don't have to care about it
and we can refer to the embedded registers starting from
MIPS_FIRST_EMBED_REGNUM instead.

Add a test case too so that we have means to check automatically that
the correct user-visible size of FCRs is maintained.

gdb/
* mips-tdep.c (mips_pseudo_register_type): Make FCRs always
32-bit.

gdb/testsuite/
* gdb.arch/mips-fcr.exp: New test.
* gdb.arch/mips-fcr.c: Source for the new test.

mips-tdep: Rearrange comments in `mips_pseudo_register_type'

Rearrange comments throughout `mips_pseudo_register_type', placing them
ahead the condtionals they apply to consistently.

gdb/
* mips-tdep.c (mips_pseudo_register_type): Rearrange comments
throughout.

[ARC] Fix parsing leave_s and enter_s mnemonics.

gas/
2016-10-06  Claudiu Zissulescu  <claziss@synopsys.com>

* testsuite/gas/arc/leave_enter.d: New file.
* testsuite/gas/arc/leave_enter.s: Likewise.
* testsuite/gas/arc/regnames.d: Likewise.
* testsuite/gas/arc/regnames.s: Likewise.
* config/tc-arc.c (arc_parse_name): Don't match reg names against
confirmed symbol names.

testsuite: solib-disc: Use `standard_output_file'

Correct a commit 2151ccc56c74 ("Always organize test artifacts in a
directory hierarchy") regression causing:

Running .../gdb/testsuite/gdb.base/solib-disc.exp ...
gdb compile failed, Assembler messages:
Fatal error: can't create .../gdb/testsuite/gdb.base/so-disc-shr.c.o: No such file or directory

by using `standard_output_file' to construct output file names
throughout.

gdb/testsuite/
* gdb.base/solib-disc.exp: Use `standard_output_file'
throughout.

Add workaround for bash 4.2 scripting problem.

* emulparams/elf32bmipn32-defs.sh: Shift quote of
"x$EMULATION_NAME" to the left to work around
<http://ftp.gnu.org/gnu/bash/bash-4.2-patches/bash42-007>.

stack: fix gdb.dwarf2/dw2-undefined-ret-addr.exp regression

Commit a038fa3e14a4 stack: check frame_unwind_caller_id adds a frame_id check to
frame_info and treats a missing frame_id as NOT_AVAILABLE_ERROR.  This causes a
regression in gdb.dwarf2/dw2-undefined-ret-addr.exp.

Treat a missing frame_id as OPTIMIZED_OUT_ERROR instead.

See also https://sourceware.org/ml/gdb-patches/2016-07/msg00273.html.

-Wimplicit-fallthrough dodgy fixes

The comment logically belongs inside the preprocessor conditional,
but gcc's -Wimplicit-fallthrough loses track of it.  Revert when/if
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77817 is fixed.

* app.c (do_scrub_chars): Move fall through comment.
* expr.c (operand): Likewise.

Add fall through comment to source in cpu/

I edited opcodes/mep-asm.c in 1a0670f3 without noticing it was a
generated file.

* mep.opc (expand_string): Add fall through comment.

[GOLD] two more fall-through comments

* powerpc.cc (Target_powerpc::Relocate::relocate): Add fall
through comment.
* tilegx.cc (Target_tilegx::Relocate::relocate): Likewise.

Fix PR11094: JIT breakpoint is not properly recreated on reruns

Even though this was supposedly in the gdb 7.2 timeframe, the testcase
in PR11094 crashes current GDB with a segfault:

  Program received signal SIGSEGV, Segmentation fault.
  0x00000000005ee894 in event_location_to_string (location=0x0) at
  src/gdb/location.c:412
  412       if (EL_STRING (location) == NULL)
  (top-gdb) bt
  #0  0x00000000005ee894 in event_location_to_string (location=0x0) at
  src/gdb/location.c:412
  #1  0x000000000057411a in print_breakpoint_location (b=0x18288e0, loc=0x0) at
  src/gdb/breakpoint.c:6201
  #2  0x000000000057483f in print_one_breakpoint_location (b=0x18288e0,
  loc=0x182cf10, loc_number=0, last_loc=0x7fffffffd258, allflag=1)
      at src/gdb/breakpoint.c:6473
  #3  0x00000000005751e1 in print_one_breakpoint (b=0x18288e0,
  last_loc=0x7fffffffd258, allflag=1) at
  src/gdb/breakpoint.c:6707
  #4  0x000000000057589c in breakpoint_1 (args=0x0, allflag=1, filter=0x0) at
  src/gdb/breakpoint.c:6947
  #5  0x0000000000575aa8 in maintenance_info_breakpoints (args=0x0, from_tty=0)
  at src/gdb/breakpoint.c:7026
  [...]

This is GDB trying to print the location spec of the JIT event
breakpoint, but that's an internal breakpoint without one.

If I add a NULL check, then we see that the JIT breakpoint is now
pending (because its location has shlib_disabled set):

  (gdb) maint info breakpoints
  Num     Type           Disp Enb Address            What
  [...]
  -8      jit events     keep y   <PENDING>           inf 1
  [...]

But that's incorrect.  GDB should have managed to recreate the JIT
breakpoint's location for the second run.  So the problem is
elsewhere.

The problem is that if the JIT loads at the same address on the second
run, we never recreate the JIT breakpoint, because we hit this early
return:

  static int
  jit_breakpoint_re_set_internal (struct gdbarch *gdbarch,
  struct jit_program_space_data *ps_data)
  {
    [...]
    if (ps_data->cached_code_address == addr)
      return 0;

    [...]
      delete_breakpoint (ps_data->jit_breakpoint);
    [...]
    ps_data->jit_breakpoint = create_jit_event_breakpoint (gdbarch, addr);

Fix this by deleting the breakpoint and discarding the cached code
address when the objfile where the previous JIT breakpoint was found
is deleted/unloaded in the first place.

The test that was originally added for PR11094 doesn't trip on this
because:

  #1 - It doesn't test the case of the JIT descriptor's address _not_
       changing between reruns.

  #2 - And then it doesn't do "maint info breakpoints", or really
       anything with the JIT at all.

  #3 - and even then, to trigger the problem the JIT descriptor needs
       to be in a separate library, while the current test puts it in
       the main program.

The patch extends the test to cover all combinations of these
scenarios.

gdb/ChangeLog:
2016-10-06  Pedro Alves  <palves@redhat.com>

* jit.c (free_objfile_data): Delete the JIT breakpoint and clear
the cached code address.

gdb/testsuite/ChangeLog:
2016-10-06  Pedro Alves  <palves@redhat.com>

* gdb.base/jit-simple-dl.c: New file.
* gdb.base/jit-simple-jit.c: New file, factored out from ...
* gdb.base/jit-simple.c: ... this.
* gdb.base/jit-simple.exp (jit_run): Delete.
(build_jit): New proc.
(jit_test_reread): Recompile either the main program or the shared
library, depending on what is being tested.  Skip changing address
if caller wants to.  Compare before/after addresses.  If testing
standalone, explicitly load the binary.  Test "maint info
breakpoints".
(top level): Add "standalone vs shared lib" and "change address"
vs "same address" axes.

Fix a few gdb.base/jit-simple.exp problems

I noticed that we sometimes get this:

  (gdb) print &__jit_debug_descriptor
  $1 = (struct jit_descriptor *) 0x601040 <__jit_debug_descriptor>
  (gdb) PASS: gdb.base/jit-simple.exp: blah 1
  [...]
  (gdb) run
  [...]
  Starting program: build/gdb/testsuite/outputs/gdb.base/jit-simple/jit-simple
  Unsupported JIT protocol version 4 in descriptor (expected 1)

  Breakpoint 2, main () at src/gdb/testsuite/gdb.base/jit-simple.c:36
  36        return 0;
  (gdb) print &__jit_debug_descriptor
  $2 = (struct jit_descriptor *) 0x601040 <__jit_debug_descriptor>
  (gdb) PASS: gdb.base/jit-simple.exp: blah 1

All tests PASSed, but note the "Unsupported JIT protocol version 4"
message.

Also notice that "__jit_debug_descriptor" has the same address before
and after the rerun, while the test is built in a way that should make
that address change between runs.

The test doesn't catch any of this because it doesn't compare
before/after addresses.

And then notice the "blah 1" test messages.  "blah" is clearly a WIP
message, but it should be at least "blah 2" the second time.  :-)

The reason this sometimes happens is that the test recompiles the
program and expects gdb to reload it automaticallyt on "run".  However,
if the original program and the new recompilation happen to be in the
same second, then gdb does not realize that the binary needs to be
reloaded.  (This is an old problem out of scope of this series.)  If
that happens, then GDB ends up using the wrong symbols for the program
that it spawns, reads the JIT descriptor out of the wrong address,
finds garbage, and prints that "unsupported version" notice.

Fix that in the same way gdb.base/reread.exp handles it -- by sleeping
one second before recompiling.

gdb/testsuite/ChangeLog:
2016-10-06  Pedro Alves  <palves@redhat.com>

* gdb.base/jit-simple.exp (top level) Delete get_compiler_info
call.
(jit_run): Delete.
(jit_test_reread): Use with_test_prefix.  Reload the main binary
explicitly.  Compare the before/after addresses of the JIT
descriptor.

Remove redundant assignment in gprof.

PR gprof/20656
* source.c (annotate_source): Delete redundant assignment to
new_line.

Refine .cfi_sections check to only consider compact eh_frame

The .cfi_sections directive can be safely used multiple times
with different sections named at any time unless the compact form
of exception handling is requested after CFI information has
been emitted.  Only the compact form of CFI information changes
the way in which CFI is generated and therefore cannot be
retrospectively requested after generating CFI information.

gas/

PR gas/20648
* dw2gencfi.c (dot_cfi_sections): Refine the check for
inconsistent .cfi_sections to only consider compact vs non
compact forms.
* testsuite/gas/cfi/cfi-common-9.d: New file.
* testsuite/gas/cfi/cfi-common-9.s: New file.
* testsuite/gas/cfi/cfi.exp: Run new test.

Make "end" field in feature specs required again.

Newer gdbservers may be talking to older gdbs,
and older gdbs will flag a missing "end" as an error.
So just make "end" required again, and for compatibility
change the default field type to "bool".

gdb/ChangeLog:
2016-10-06  Doug Evans  <dje@google.com>

* features/aarch64-core.xml (cpsr_flags): Elide "type" and specify
"end" in all fields.
* features/aarch64.c: Regenerate.
* features/i386/32bit-mpx.xml (_bndcfgu): Specify type of "preserved"
and "enabled" fields. Correct size of "enabled" field.
* features/i386/64bit-mpx.xml (_bndcfgu): Specify type of "preserved"
and "enabled" fields.
* features/i386/i386-avx-mpx-linux.c: Regenerate.
* features/i386/i386-avx-mpx.c: Regenerate.
* features/i386/i386-avx512-linux.c: Regenerate.
* features/i386/i386-avx512.c: Regenerate.
* features/i386/i386-mpx-linux.c: Regenerate.
* features/i386/i386-mpx.c: Regenerate.
* features/arc-arcompact.c: Regenerate.
* features/arc-v2.c: Regenerate.
* xml-tdesc.c (tdesc_start_field): Require "end" spec.  Single bit
fields default to "bool" type.

Revert 2016-03-15  Doug Evans  <dje@google.com>
* features/i386/32bit-core.xml (i386_eflags): Remove "end" spec.
* features/i386/32bit-sse.xml (i386_eflags): Ditto.
* features/i386/64bit-core.xml (i386_eflags): Ditto.
* features/i386/64bit-sse.xml (i386_eflags): Ditto.
* features/i386/x32-core.xml (i386_eflags): Ditto.

gdb/doc/ChangeLog:
2016-10-06  Doug Evans  <dje@google.com>

* gdb.texinfo (Target Description Format): Update docs on "end"
field spec and field default type.

gdb/testsuite/ChangeLog:
2016-10-06  Doug Evans  <dje@google.com>

* gdb.xml/extra-regs.xml: Update, end field now required, default type
for single bitfields is bool.
* gdb.xml/tdesc-regs.exp: Ditto.

Automatic date update in version.in

-Wimplicit-fallthrough warning fixes

Comment changes.

bfd/
* coff-h8300.c: Spell fall through comments consistently.
* coffgen.c: Likewise.
* elf32-hppa.c: Likewise.
* elf32-ppc.c: Likewise.
* elf32-score.c: Likewise.
* elf32-score7.c: Likewise.
* elf64-ppc.c: Likewise.
* elfxx-aarch64.c: Likewise.
* elfxx-mips.c: Likewise.
* cpu-ns32k.c: Add missing fall through comments.
* elf-m10300.c: Likewise.
* elf32-arm.c: Likewise.
* elf32-avr.c: Likewise.
* elf32-bfin.c: Likewise.
* elf32-frv.c: Likewise.
* elf32-i386.c: Likewise.
* elf32-microblaze.c: Likewise.
* elf32-nds32.c: Likewise.
* elf32-ppc.c: Likewise.
* elf32-rl78.c: Likewise.
* elf32-rx.c: Likewise.
* elf32-s390.c: Likewise.
* elf32-sh.c: Likewise.
* elf32-tic6x.c: Likewise.
* elf64-ia64-vms.c: Likewise.
* elf64-ppc.c: Likewise.
* elf64-s390.c: Likewise.
* elf64-x86-64.c: Likewise.
* elflink.c: Likewise.
* elfnn-aarch64.c: Likewise.
* elfnn-ia64.c: Likewise.
* ieee.c: Likewise.
* oasys.c: Likewise.
* pdp11.c: Likewise.
* srec.c: Likewise.
* versados.c: Likewise.
opcodes/
* aarch64-opc.c: Spell fall through comments consistently.
* i386-dis.c: Likewise.
* aarch64-dis.c: Add missing fall through comments.
* aarch64-opc.c: Likewise.
* arc-dis.c: Likewise.
* arm-dis.c: Likewise.
* i386-dis.c: Likewise.
* m68k-dis.c: Likewise.
* mep-asm.c: Likewise.
* ns32k-dis.c: Likewise.
* sh-dis.c: Likewise.
* tic4x-dis.c: Likewise.
* tic6x-dis.c: Likewise.
* vax-dis.c: Likewise.
binutils/
* dlltool.c: Spell fall through comments consistently.
* objcopy.c: Likewise.
* readelf.c: Likewise.
* dwarf.c: Add missing fall through comments.
* elfcomm.c: Likewise.
* sysinfo.y: Likewise.
* readelf.c: Likewise.  Also remove extraneous comments.
gas/
* app.c: Add missing fall through comments.
* dw2gencfi.c: Likewise.
* expr.c: Likewise.
* config/tc-alpha.c: Likewise.
* config/tc-arc.c: Likewise.
* config/tc-arm.c: Likewise.
* config/tc-cr16.c: Likewise.
* config/tc-crx.c: Likewise.
* config/tc-dlx.c: Likewise.
* config/tc-h8300.c: Likewise.
* config/tc-hppa.c: Likewise.
* config/tc-i370.c: Likewise.
* config/tc-i386.c: Likewise.
* config/tc-i960.c: Likewise.
* config/tc-ia64.c: Likewise.
* config/tc-m68hc11.c: Likewise.
* config/tc-m68k.c: Likewise.
* config/tc-mep.c: Likewise.
* config/tc-metag.c: Likewise.
* config/tc-microblaze.c: Likewise.
* config/tc-mips.c: Likewise.
* config/tc-ns32k.c: Likewise.
* config/tc-rx.c: Likewise.
* config/tc-score.c: Likewise.
* config/tc-score7.c: Likewise.
* config/tc-sh.c: Likewise.
* config/tc-tic4x.c: Likewise.
* config/tc-vax.c: Likewise.
* config/tc-xstormy16.c: Likewise.
* config/tc-z80.c: Likewise.
* config/tc-z8k.c: Likewise.
* config/obj-elf.c: Likewise.
* config/tc-i386.c: Likewise.
* depend.c: Spell fall through comments consistently.
* config/tc-arm.c: Likewise.
* config/tc-d10v.c: Likewise.
* config/tc-i960.c: Likewise.
* config/tc-ia64.c: Likewise.
* config/tc-m68k.c: Likewise.
* config/tc-mcore.c: Likewise.
* config/tc-mep.c: Likewise.
* config/tc-ns32k.c: Likewise.
* config/tc-visium.c: Likewise.
* config/tc-xstormy16.c: Likewise.
* config/tc-z8k.c: Likewise.
gprof/
* gprof.c: Add missing fall through comments.
ld/
* lexsup.c: Spell fall through comments consistently and add
missing fall through comments.

-Wimplicit-fallthrough noreturn fixes

binutils/
* cxxfilt.c (usage): Add ATTRIBUTE_NORETURN.
* elfedit.c (usage): Likewise.
* nm.c (usage): Likewise.
* objcopy.c (copy_usage, strip_usage): Likewise.
* srconv.c (show_usage): Likewise.
* strings.c (usage): Likewise.
* sysdump.c (show_usage): Likewise.
* srconv.c: Remove unneeded forward function declarations.
* strings.c: Likewise.
* sysdump.c: Likewise.
gas/
* as.h (as_assert): Add ATTRIBUTE_NORETURN.

-Wimplicit-fallthrough error fixes

Well, not all are errors, but a little more substantive than just
fiddling with comments.

bfd/
* coffcode.h (coff_slurp_symbol_table): Revert accidental commit
made 2015-01-08.
* elf32-nds32.c (nds32_elf_grok_psinfo): Add missing break.
* reloc.c (bfd_default_reloc_type_lookup): Add missing breaks.
opcodes/
* arc-ext.c (create_map): Add missing break.
* msp430-decode.opc (encode_as): Likewise.
* msp430-decode.c: Regenerate.
binutils/
* coffdump.c (dump_coff_where): Add missing break.
* stabs.c (stab_xcoff_builtin_type): Likewise.
gas/
* config/tc-arc.c (find_opcode_match): Add missing break.
* config/tc-i960.c (get_cdisp): Likewise.
* config/tc-metag.c (parse_swap, md_apply_fix): Likewise.
* config/tc-mt.c (md_parse_option): Likewise.
* config/tc-nds32.c (nds32_apply_fix): Likewise.
* config/tc-hppa.c (pa_ip): Assert rather than testing last
condition of multiple if statements.
* config/tc-s390.c (s390_exp_compare): Return 0 on error.
* config/tc-tic4x.c (tic4x_operand_parse): Add as_bad and break
out of case rather than falling into next case.  Formatting.
ld/
* plugin.c (asymbol_from_plugin_symbol): Avoid compiler warning
by adding return.

[GOLD] -Wimplicit-fallthrough warning fixes

* aarch64.cc: Spell fall through comments as "// Fall through.".
* arm.cc: Likewise.
* mips.cc: Likewise.
* powerpc.cc: Likewise.
* s390.cc: Likewise.
* sparc.cc: Likewise.
* x86_64.cc: Likewise.
* powerpc.cc (Target_powerpc::Relocate::relocate): Add missing
fall through comments.
* sparc.cc: (Target_sparc::Scan::global): Likewise.
(Target_sparc::Relocate::relocate): Likewise.
* tilegx.cc (Target_tilegx::Relocate::relocate): Likewise.
* resolve.cc (symbol_to_bits): Add missing break.

bison warning fixes

* config/rl78-parse.y: Don't use deprecated %name-prefix.
* config/rx-parse.y: Likewise.

Don't use boolean OR in arithmetic expressions

bfd/
* elf32-epiphany.c (epiphany_final_link_relocate): Use bitwise
OR in arithmetic expression, not boolean OR.
opcodes/
* cr16-dis.c (print_insn_cr16): Don't use boolean OR in arithmetic.
* crx-dis.c (print_insn_crx): Likewise.

testsuite: Fix recent GCC FAIL: gdb.arch/i386-signal.exp

gcc-6.2.1-2.fc24.x86_64

(gdb) backtrace 10^M
(gdb) FAIL: gdb.arch/i386-signal.exp: backtrace 10

(gdb) disas/s
Dump of assembler code for function main:
.../gdb/testsuite/gdb.arch/i386-signal.c:
30      {
   0x000000000040057f <+0>:     push   %rbp
   0x0000000000400580 <+1>:     mov    %rsp,%rbp
31        setup ();
   0x0000000000400583 <+4>:     callq  0x400590 <setup>
=> 0x0000000000400588 <+9>:     mov    $0x0,%eax
32      }
   0x000000000040058d <+14>:    pop    %rbp
   0x000000000040058e <+15>:    retq
End of assembler dump.

The .exp patch is an obvious typo fix I think.  The regex was written to
accept "ADDR in main" and I find it OK as checking .debug_line validity is not
the purpose of this testfile.

gcc-4.8.5-11.el7.x86_64 did not put the 'mov $0x0,%eax' instruction there at
all so there was no problem with .debug_line.

gdb/testsuite/ChangeLog
2016-10-05  Jan Kratochvil  <jan.kratochvil@redhat.com>

* gdb.arch/i386-signal.exp (backtrace 10): Fix #2 typo.

PR remote/20655 - small fix in handle_tracepoint_bkpts

handle_tracepoint_bkpts has two parallel "if"s.  This changes the
second one to check ipa_error_tracepoint, which seems to be what was
intended.

2016-10-05  Tom Tromey  <tom@tromey.com>

PR remote/20655:
* tracepoint.c (handle_tracepoint_bkpts): Check
ipa_error_tracepoint, not ipa_stopping_tracepoint.

PR gdb/20653 - small cleanup in string_to_explicit_location

This bug points out that string_to_explicit_location compares a char*
against '\0'; whereas comparing against NULL is more normal.

2016-10-05  Tom Tromey  <tom@tromey.com>

PR breakpoints/20653:
* location.c (string_to_explicit_location): Use NULL, not '\0'.

PR symtab/20652 - fix psymbol_compare

This fixes an oversight in psymbol_compare.

2016-10-05  Tom Tromey  <tom@tromey.com>

PR symtab/20652:
* psymtab.c (psymbol_compare): Correctly compare "ginfo.value"
fields.

Skip complex types tests if gdb_skip_float_test

If the target doesn't support float, we don't run float complex types
tests.

gdb/testsuite:

2016-10-05  Yao Qi  <yao.qi@linaro.org>

* lib/gdb.exp (support_complex_tests): Return zero if
gdb_skip_float_test return true.

Fix incorrect formatting of a ChangeLog entry

My previous commit had an invalid formatting of a ChangeLog entry.  This commit
fixes that.

Allow DW_OP_GNU_uninit in dwarf_expr_require_composition

In DWARF expression handling, some operators are required to be either
at the end of an expression or followed by a composition operator.  So
far only the operators DW_OP_reg0-31 were allowed to be followed by
DW_OP_GNU_uninit instead, and particularly DW_OP_regx was not, which is
obviously inconsistent.

This patch allows DW_OP_GNU_uninit after all operators requiring a
composition, to simplify the code and make it more consistent.  This
policy may be more permissive than necessary, but in the worst case just
leads to a DWARF location description resulting in an uninitialized
value instead of an error message.

gdb/ChangeLog:

* dwarf2expr.c (dwarf_expr_require_composition): Allow
DW_OP_GNU_uninit.
(execute_stack_op): Use dwarf_expr_require_composition instead of
copying its logic.

arc: Remove annoying debug message

The logging message is called too often - once for each register when it's
value has to be evaluated. This floods the screen for commands like "info
register all", but doesn't give really any help at debugging GDB issues.
Between increasing the debug level of this message and removing it altogether I
think that removing it is preferable.

gdb/ChangeLog:

arc-tdep.c (arc_frame_prev_register): Remove annoying log message.

Update the path arm-*.xml files for aarch64

0a69eedb (Clean up the XML files for ARM) breaks the GDBserver build
on aarch64 because some arm-*.xml files can't be found.

This patch is to fix the build failure.

gdb/gdbserver:

2016-10-05  Yao Qi  <yao.qi@linaro.org>

* configure.srv: Update the path of arm-*.xml files.

Regenerate some regformats/rs6000/*.dat files

If I remove all regformats/*.dat files and run
make GDB=/scratch/yao/gdb/build-git/all-targets/gdb/gdb all, some
powerpc .dat files are not generated.

This patch fixes it by adding them to WHICH, so these .dat files can
be generated.

gdb:

2016-10-05  Yao Qi  <yao.qi@linaro.org>

* features/Makefile (WHICH): Add
rs6000/powerpc-isa205-32l, rs6000/powerpc-isa205-64l,
rs6000/powerpc-isa205-altivec32l, rs6000/powerpc-isa205-altivec64l,
rs6000/powerpc-isa205-vsx32l and rs6000/powerpc-isa205-vsx64l.
* regformats/rs6000/powerpc-isa205-32l.dat: Regenerated.
* regformats/rs6000/powerpc-isa205-64l.dat: Likewise.
* regformats/rs6000/powerpc-isa205-altivec32l.dat: Likewise.
* regformats/rs6000/powerpc-isa205-altivec64l.dat: Likewise.
* regformats/rs6000/powerpc-isa205-vsx32l.dat: Likewise.
* regformats/rs6000/powerpc-isa205-vsx64l.dat: Likewise.

Generate s390 target description c files

If I delete all target description c files under features/ directory,
and run make GDB=/scratch/yao/gdb/build-git/all-targets/gdb/gdb cfiles,
some s390 target description c files are not generated.

This patch adds these s390 xml files to XMLTOC, so these c files can
be generated.

gdb:

2016-10-05  Yao Qi  <yao.qi@linaro.org>

* features/Makefile (XMLTOC): Add s390-tevx-linux64.xml,
s390-vx-linux64.xml, s390x-tevx-linux64.xml and
s390x-vx-linux64.xml.

Simplify i386, amd64 and x32 expedite registers

Nowadays, there are a lot of duplication about
i386/{i386, amd64, x32}*-expedite in features/Makefile.  However,
in features/Makefile, we have

 echo "expedite:$(if $($*-expedite),$($*-expedite),$($(firstword $(subst -, ,$(notdir $*)))-expedite))" \
  >> $(outdir)/$*.tmp

which means for a given bar/foo-baz.xml, we'll look for either
bar/foo-baz-expedite or foo-expedite.  In x86 expedite registers, we
use the former now, but it will be much simpler if we use the latter.
This is what this patch does.  This patch removes them, and defines
three generic expedite.  Re-run 'make GDB=/path/build/gdb all' to
regenerate regformats/*.dat files, and they are not changed.

gdb:

2016-10-05  Yao Qi  <yao.qi@linaro.org>

* features/Makefile: Remove i386/*-expedite. Add i386-expedite,
amd64-expedite, and x32-expedite.

Clean up the XML files for ARM

This patch is move features/arm-*.xml to features/arm/, and it is based
on Terry's patch posted here
https://sourceware.org/ml/gdb-patches/2014-06/msg00794.html

One comment to Terry's patch is about losing "arm" prefix, and the new
patch fixes this problem.

gdb:

2016-10-05  Terry Guo  <terry.guo@arm.com>
    Yao Qi  <yao.qi@linaro.org>

* arm-tdep.c: Adjust includes.
* features/Makefile (WHICH): Add "arm/" directory to arm
target descriptions.
(XMLTOC): Likewise.
(arm/arm-with-iwmmxt.dat): Adjust the path for
dependencies.
* features/arm-core.xml: Moved to ...
* features/arm/arm-core.xml: ... it.
* features/arm-fpa.xml: Moved to ...
* features/arm/arm-fpa.xml: ... it.
* features/arm-m-profile.xml: Moved to ...
* features/arm/arm-m-profile.xm: ... it.
* features/arm-vfpv2.xml: Moved to ...
* features/arm/arm-vfpv2.xm: ... it.
* features/arm-vfpv3.xml: Moved to ...
* features/arm/arm-vfpv3.xml: ... it.
* features/arm-with-iwmmxt.c: Moved to ...
* features/arm/arm-with-iwmmxt.c: ... it.
* features/arm-with-iwmmxt.xml: Moved to ...
* features/arm/arm-with-iwmmxt.xml: ... it.
* features/arm-with-m-fpa-layout.c: Moved to ...
* features/arm/arm-with-m-fpa-layout.c: ... it.
* features/arm-with-m-fpa-layout.xml: Moved to ...
* features/arm/arm-with-m-fpa-layout.xml: ... it.
* features/arm-with-m-vfp-d16.c: Moved to ...
* features/arm/arm-with-m-vfp-d16.c: ... it.
* features/arm-with-m-vfp-d16.xml: Moved to ...
* features/arm/arm-with-m-vfp-d16.xml: ... it.
* features/arm-with-m.c: Moved to ...
* features/arm/arm-with-m.c: ... it.
* features/arm-with-m.xml: Moved to ...
* features/arm/arm-with-m.xm: ... it.
* features/arm-with-neon.c: Moved to ...
* features/arm/arm-with-neon.c: ... it.
* features/arm-with-neon.xml: Moved to ...
* features/arm/arm-with-neon.xml: ... it.
* features/arm-with-vfpv2.c: Moved to ...
* features/arm/arm-with-vfpv2.c: ... it.
* features/arm-with-vfpv2.xml: Moved to ...
* features/arm/arm-with-vfpv2.xml: ... it.
* features/arm-with-vfpv3.c: Moved to ...
* features/arm/arm-with-vfpv3.c: ... it.
* features/arm-with-vfpv3.xml: Moved to ...
* features/arm/arm-with-vfpv3.xml: ... it.
* features/xscale-iwmmxt.xml: Moved to ...
* features/arm/xscale-iwmmxt.xml: ... it.

gdb/gdbserver:

2016-10-05  Terry Guo  <terry.guo@arm.com>
    Yao Qi  <yao.qi@linaro.org>

* Makefile.in: Adjust the path of rules.
* configure.srv: Update the path of xml files.
* regformats/arm-with-iwmmxt.dat: Regenerated.
* regformats/arm-with-neon.dat: Likewise.
* regformats/arm-with-vfpv2.dat: Likewise.
* regformats/arm-with-vfpv3.dat Likewise.

Automatic date update in version.in

ld expression section

Changes the result of ld expressions that were previously plain
numbers to be an absolute address, in the same circumstances where
numbers are treated as absolute addresses.

* ld.texinfo (Expression Section): Update result of arithmetic
expressions.
* ldexp.c (arith_result_section): New function.
(fold_binary): Use it.

Fold arithmetic integer expressions

Commit b751e639 regressed arm linux kernel builds, that have an
ASSERT (((__hyp_idmap_text_end - (__hyp_idmap_text_start
                  & ~ (((0x1 << 0xc) - 0x1))))
         <= (0x1 << 0xc)), HYP init code too big or misaligned)

Due to some insanity in ld expression evaluation, the integer values
0x1 and 0xc above are treated as absolute addresses (ie. they have an
associated section, *ABS*, see exp_fold_tree_1 case etree_value) while
the expression (0x1 << 0xc) has a plain number result.  The left hand
side of the inequality happens to evaluate to a "negative" .text
section relative value.  Comparing a section relative value against an
absolute value works since the section relative value is first
converted to absolute.  Comparing a section relative value against a
number just compares the offsets, which fails since the "negative"
offset is really a very large positive number.

This patch works around the problem by folding integer expressions, so
the assert again becomes
ASSERT (((__hyp_idmap_text_end - (__hyp_idmap_text_start
                  & 0xfffffffffffff000))
         <= 0x1000), HYP init code too big or misaligned)

* ldexp.c (exp_value_fold): New function.
(exp_unop, exp_binop, exp_trinop): Use it.

Automatic date update in version.in

Add test for user context selection sync

This patch adds a test to verify that events are sent properly to all
UIs when the user selection context (inferior, thread, frame) changes.

The goal of the C test file is to provide two threads that are stopped with the
same predictable backtrace (so that we can test frame switching).  The barrier
helps us know when the child threads are started.  Then, scheduler-locking is
used to bring each thread one by one to the position we expect them to be
during the test.

gdb/testsuite/ChangeLog:

YYYY-MM-DD  Antoine Tremblay  <antoine.tremblay@ericsson.com>
YYYY-MM-DD  Simon Marchi  <simon.marchi@ericsson.com>

PR gdb/20487
* gdb.mi/user-selected-context-sync.exp: New file.
* gdb.mi/user-selected-context-sync.c: New file.

Emit inferior, thread and frame selection events to all UIs

With this patch, when an inferior, thread or frame is explicitly
selected by the user, notifications will appear on all CLI and MI UIs.
When a GDB console is integrated in a front-end, this allows the
front-end to follow a selection made by the user ont he CLI, and it
informs the user about selection changes made behind the scenes by the
front-end.

This patch addresses PR gdb/20487.

In order to communicate frame changes to the front-end, this patch adds
a new field to the =thread-selected event for the selected frame.  The
idea is that since inferior/thread/frame can be seen as a composition,
it makes sense to send them together in the same event.  The vision
would be to eventually send the inferior information as well, if we find
that it's needed, although the "=thread-selected" event would be
ill-named for that job.

Front-ends need to handle this new field if they want to follow the
frame selection changes that originate from the console.  The format of
the frame attribute is the same as what is found in the *stopped events.

Here's a detailed example for each command and the events they generate:

thread
------

1. CLI command:

     thread 1.3

   MI event:

     =thread-selected,id="3",frame={...}

2. MI command:

     -thread-select 3

   CLI event:

     [Switching to thread 1.3 ...]

3. MI command (CLI-in-MI):

     thread 1.3

   MI event/reply:

     &"thread 1.3\n"
     ~"#0  child_sub_function () ...
     =thread-selected,id="3",frame={level="0",...}
     ^done

frame
-----

1. CLI command:

     frame 1

   MI event:

     =thread-selected,id="3",frame={level="1",...}

2. MI command:

     -stack-select-frame 1

   CLI event:

     #1  0x00000000004007f0 in child_function...

3. MI command (CLI-in-MI):

     frame 1

   MI event/reply:

     &"frame 1\n"
     ~"#1  0x00000000004007f9 in ..."
     =thread-selected,id="3",frame={level="1"...}
     ^done

inferior
--------

Inferior selection events only go from the console to MI, since there's
no way to select the inferior in pure MI.

1. CLI command:

     inferior 2

   MI event:

     =thread-selected,id="3"

Note that if the user selects an inferior that is not started or exited,
the MI doesn't receive a notification.  Since there is no threads to
select, the =thread-selected event does not apply...

2. MI command (CLI-in-MI):

     inferior 2

   MI event/reply:

     &"inferior 2\n"
     ~"[Switching to inferior 2 ...]"
     =thread-selected,id="4",frame={level="0"...}
     ^done

Internal implementation detail: this patch makes it possible to suppress
notifications caused by a CLI command, like what is done in mi-interp.c.
This means that it's now possible to use the
add_com_suppress_notification function to register a command with some
event suppressed.  It is used to implement the select-frame command in
this patch.

The function command_notifies_uscc_observer was added to extract
the rather complicated logical expression from the if statement.  It is
also now clearer what that logic does: if the command used by the user
already notifies the user_selected_context_changed observer, there is
not need to notify it again.  It therefore protects again emitting the
event twice.

No regressions, tested on ubuntu 14.04 x86 with target boards unix and
native-extended-gdbserver.

gdb/ChangeLog:

YYYY-MM-DD  Antoine Tremblay  <antoine.tremblay@ericsson.com>
YYYY-MM-DD  Simon Marchi  <simon.marchi@ericsson.com>

PR gdb/20487
* NEWS: Mention new frame field of =thread-selected event.
* cli/cli-decode.c (add_cmd): Initialize c->suppress_notification.
(add_com_suppress_notification): New function definition.
(cmd_func): Set and restore the suppress_notification flag.
* cli/cli-deicode.h (struct cmd_list_element)
<suppress_notification>: New field.
* cli/cli-interp.c (cli_suppress_notification): New global variable.
(cli_on_user_selected_context_changed): New function.
(_initialize_cli_interp): Attach to user_selected_context_changed
observer.
* command.h (struct cli_suppress_notification): New structure.
(cli_suppress_notification): New global variable declaration.
(add_com_suppress_notification): New function declaration.
* defs.h (enum user_selected_what_flag): New enum.
(user_selected_what): New enum flag type.
* frame.h (print_stack_frame_to_uiout): New function declaration.
* gdbthread.h (print_selected_thread_frame): New function declaration.
* inferior.c (print_selected_inferior): New function definition.
(inferior_command): Remove printing of inferior/thread/frame switch
notifications, notify user_selected_context_changed observer.
* inferior.h (print_selected_inferior): New function declaration.
* mi/mi-cmds.c (struct mi_cmd): Add user_selected_context
suppression to stack-select-frame and thread-select commands.
* mi/mi-interp.c (struct mi_suppress_notification)
<user_selected_context>: Initialize.
(mi_user_selected_context_changed): New function definition.
(_initialize_mi_interp): Attach to user_selected_context_changed.
* mi/mi-main.c (mi_cmd_thread_select): Print thread selection reply.
(mi_execute_command): Handle notification suppression.  Notify
user_selected_context_changed observer on thread change instead of printing
event directly.  Don't send it if command already sends the notification.
(command_notifies_uscc_observer): New function.
(mi_cmd_execute): Don't handle notification suppression.
* mi/mi-main.h (struct mi_suppress_notification)
<user_selected_context>: New field.
* stack.c (print_stack_frame_to_uiout): New function definition.
(select_frame_command): Notify user_selected_context_changed
observer.
(frame_command): Call print_selected_thread_frame if there's no frame
change or notify user_selected_context_changed observer if there is.
(up_command): Notify user_selected_context_changed observer.
(down_command): Likewise.
(_initialize_stack): Suppress user_selected_context notification for
command select-frame.
* thread.c (thread_command): Notify
user_selected_context_changed if the thread has changed, print
thread info directly if it hasn't.
(do_captured_thread_select): Do not print thread switch event.
(print_selected_thread_frame): New function definition.
* tui/tui-interp.c (tui_on_user_selected_context_changed):
New function definition.
(_initialize_tui_interp): Attach to user_selected_context_changed
observer.

gdb/doc/ChangeLog:

PR gdb/20487
* gdb.texinfo (Context management): Update mention of frame
change notifications.
(gdb/mi Async Records): Document frame field in
=thread-select event.
* observer.texi (GDB Observers): New user_selected_context_changed
observer.

gdb/testsuite/ChangeLog:

PR gdb/20487
* gdb.mi/mi-pthreads.exp (check_mi_thread_command_set): Adapt
=thread-select-event check.

Automatic date update in version.in

Automatic date update in version.in

Automatic date update in version.in

PR 20627: Use resume_stop to stop lwp

Commit 049a8570 (Use target_continue{,_no_signal} instead of target_resume)
replaces the code stopping lwp with target_continue_no_signal in
target_stop_and_wait, like this,

-  resume_info.thread = ptid;
-  resume_info.kind = resume_stop;
-  resume_info.sig = GDB_SIGNAL_0;
-  (*the_target->resume) (&resume_info, 1);
+  target_continue_no_signal (ptid);

the replacement is not equivalent, and it causes PR 20627.  This patch
is just to revert that change.

Regression testing it on x86_64-linux.

gdb/gdbserver:

2016-09-30  Yao Qi  <yao.qi@linaro.org>

PR gdbserver/20627
* target.c (target_stop_and_wait): Don't call
target_continue_no_signal, use resume_stop instead.

Don't assign alt twice

PR binutils/20657
* i386-dis.c (putop): Don't assign alt twice.

Add missing dependencies to BFD_H_FILES

* Makefile.am (BFD_H_FILES): Add linker.c and simple.c.  Sort
as per comment at head of bfd-in2.h.
* Makefile.in: Regenerate.

[AArch64] PR target/20553, fix opcode mask for SIMD multiply by element

opcode/
PR target/20553
        * aarch64-tbl.h (fmla, fmls, fmul, fmulx): Fix opcode mask field.

gas/
        * testsuite/gas/aarch64/advsimd-fp16.s (indexed_elem): New high index
        testcases for H and S variants.  New low index testcases for D variant.
        * testsuite/gas/aarch64/advsimd-fp16.d: Update expected results.

v850 linker scripts

This should mean the 2010-10-28 change for ld -r --gc-sections can
be reverted.

* scripttempl/v850.sc: Don't reference __ctbp, __ep, __gp when
not relocating.
* scripttempl/v850_rh850.sc: Likewise.

Fix pr20528 testsuite

PR ld/20528
* testsuite/ld-elf/pr20528a.d: xfail generic elf targets.  Allow
multiple .text sections for hppa-linux.
* testsuite/ld-elf/pr20528b.d: Likewise.

Remove syntactic sugar

Now that _bfd_error_handler is not a function pointer.

* aout-adobe.c: Replace (*_bfd_error_handler) (...) with
_bfd_error_handler (...) throughout.
* aout-cris.c, * aoutx.h, * archive.c, * bfd.c, * binary.c,
* cache.c, * coff-alpha.c, * coff-arm.c, * coff-h8300.c,
* coff-i860.c, * coff-mcore.c, * coff-ppc.c, * coff-rs6000.c,
* coff-sh.c, * coff-tic4x.c, * coff-tic54x.c, * coff-tic80.c,
* coff64-rs6000.c, * coffcode.h, * coffgen.c, * cofflink.c,
* coffswap.h, * cpu-arm.c, * cpu-m68k.c, * cpu-sh.c, * dwarf2.c,
* ecoff.c, * elf-eh-frame.c, * elf-m10300.c, * elf.c, * elf32-arc.c,
* elf32-arm.c, * elf32-avr.c, * elf32-bfin.c, * elf32-cr16.c,
* elf32-cris.c, * elf32-crx.c, * elf32-dlx.c, * elf32-frv.c,
* elf32-hppa.c, * elf32-i370.c, * elf32-i386.c, * elf32-lm32.c,
* elf32-m32c.c, * elf32-m32r.c, * elf32-m68hc1x.c, * elf32-m68k.c,
* elf32-mcore.c, * elf32-mep.c, * elf32-metag.c, * elf32-microblaze.c,
* elf32-mips.c, * elf32-nds32.c, * elf32-nios2.c, * elf32-or1k.c,
* elf32-pj.c, * elf32-ppc.c, * elf32-rl78.c, * elf32-s390.c,
* elf32-score.c, * elf32-score7.c, * elf32-sh.c, * elf32-sh64.c,
* elf32-sparc.c, * elf32-spu.c, * elf32-tic6x.c, * elf32-tilepro.c,
* elf32-v850.c, * elf32-vax.c, * elf32-xtensa.c, * elf64-alpha.c,
* elf64-hppa.c, * elf64-ia64-vms.c, * elf64-mips.c, * elf64-mmix.c,
* elf64-ppc.c, * elf64-s390.c, * elf64-sh64.c, * elf64-sparc.c,
* elf64-x86-64.c, * elfcode.h, * elfcore.h, * elflink.c,
* elfn32-mips.c, * elfnn-aarch64.c, * elfnn-ia64.c, * elfxx-mips.c,
* elfxx-sparc.c, * elfxx-tilegx.c, * hpux-core.c, * i386linux.c,
* ieee.c, * ihex.c, * libbfd.c, * linker.c, * m68klinux.c,
* mach-o.c, * merge.c, * mmo.c, * oasys.c, * osf-core.c, * pdp11.c,
* pe-mips.c, * peXXigen.c, * pef.c, * plugin.c, * reloc.c,
* rs6000-core.c, * sco5-core.c, * som.c, * sparclinux.c, * srec.c,
* stabs.c, * syms.c, * vms-alpha.c, * vms-lib.c, * vms-misc.c,
* xcofflink.c: Likewise.

Better ld --fatal-warnings support

* ldmain.c (default_bfd_error_handler): New function pointer.
(ld_bfd_error_handler): New function.
(main): Arrange to call it on bfd errors/warnings.
(ld_bfd_assert_handler): Enable tail call.

Make bfd_error_handler_type like vprintf

It was like printf, which means you can't use bfd_set_error_handler to
hook in a function to do something and then call the original handler.

The patch also deletes some unused functions and makes pointers local.

bfd/
* bfd-in.h: Include stdarg.h.
* bfd.c (bfd_error_handler_type): Make like vprintf.
(_bfd_error_internal): Rename from _bfd_error_handler.  Make static.
(error_handler_internal): New function, split out from..
(_bfd_default_error_handler): ..here.  Rename to _bfd_error_handler.
(bfd_set_error_handler): Update.
(bfd_get_error_handler, bfd_get_assert_handler): Delete.
(_bfd_assert_handler): Make static.
* coffgen.c (null_error_handler): Update params.
* elf-bfd.h (struct elf_backend_data <link_order_error_handler>):
Don't use bfd_error_handler_type.
* elf64-mmix.c (mmix_dump_bpo_gregs): Likewise.
* elfxx-target.h (elf_backend_link_order_error_handler): Default
to _bfd_error_handler.
* libbfd-in.h (_bfd_default_error_handler): Don't declare.
(bfd_assert_handler_type): Likewise.
(_bfd_error_handler): Update.
* bfd-in2.h: Regenerate.
* libbfd.h: Regenerate.
ld/
* ldlang.c (ignore_bfd_errors): Update params.

Automatic date update in version.in

Update tests to account for the L operand being compulsory.

* gdb.arch/powerpc-power.exp <cmprb>: Update tests to account for
the compulsory L operand changes.
* gdb.arch/powerpc-power.s: Likewise.

Don't merge 2 sections with different SHF_EXCLUDE

SEC_EXCLUDE is ignored when doing a relocatable link.  But we can't
merge 2 input sections with the same name when only one of them has
SHF_EXCLUDE.

PR ld/20528
* emultempl/elf32.em (gld${EMULATION_NAME}_place_orphan): Don't
merge 2 sections with different SHF_EXCLUDE.
* testsuite/ld-elf/pr20528a.d: New file.
* testsuite/ld-elf/pr20528a.s: Likewise.
* testsuite/ld-elf/pr20528b.d: Likewise.
* testsuite/ld-elf/pr20528b.s: Likewise.

PR gdb/20609 - attach of JIT-debug-enabled inf 7.11.1 regression

Regression: gdb --pid $(pidof qemu-system-x86_64) stopped working with gdb 7.11.1
https://sourceware.org/bugzilla/show_bug.cgi?id=20609

It was reported for qemu-system-x86_64 but it happens for any multithreaded
inferior with a JIT debugging hook.

136613ef0c6850427317e57be1b644080ff6decb is the first bad commit
Author: Pedro Alves <palves@redhat.com>
    Fix PR gdb/19828: gdb -p <process from a container>: internal error
Message-ID: <cbdf2e04-4fa8-872a-2a23-08c9c1b26e00@redhat.com>
https://sourceware.org/ml/gdb-patches/2016-05/msg00450.html

jit_breakpoint_re_set() is specific by trying to insert a breakpoint into the
main executable, not into a shared library.  During attachment GDB thinks it
needs to use 'breakpoint always-inserted' from
breakpoints_should_be_inserted_now() as a newly attached thread is
'thread_info->executing' due to 'lwp_info->must_set_ptrace_flags' enabled and
the task not yet stopped.  This did not happen before the 'bad commit' above
which adds tracking of such thread.

GDB then fails to insert the breakpoints to invalid address as PIE executable
gets properly relocated during later phase of attachment.  One can see in the
backtraces below:
 -> jit_breakpoint_re_set_internal()
later:
 -> svr4_exec_displacement()

One can suppress the initial breakpoint_re_set() call as there will be another
breakpoint_re_set() done from the final post_create_inferior() call in
setup_inferior().

BTW additionally 'threads_executing' cache bool is somehow stale (somewhere is
missing update_threads_executing()).  I was trying to deal with that in my
first/second attempt below but in my final third attempt (attached) I have
left it as it is.

First attempt trying not to falsely require 'breakpoint always-inserted':
  https://people.redhat.com/jkratoch/rhbz1375553-fix1.patch
Reduced first attempt:
  https://people.redhat.com/jkratoch/rhbz1375553-fix2.patch

The third attempt suppresses breakpoint insertion until PIE executable gets
relocated by svr4_exec_displacement().  Applied.

gdb/ChangeLog
2016-09-29  Jan Kratochvil  <jan.kratochvil@redhat.com>

PR gdb/20609 - attach of JIT-debug-enabled inf 7.11.1 regression
* exec.c (exec_file_locate_attach): Add parameter defer_bp_reset.
Use it.
* gdbcore.h (exec_file_locate_attach): Add parameter defer_bp_reset.
* infcmd.c (setup_inferior): Update caller.
* remote.c (remote_add_inferior): Likewise.

gdb/testsuite/ChangeLog
2016-09-29  Jan Kratochvil  <jan.kratochvil@redhat.com>

PR gdb/20609 - attach of JIT-debug-enabled inf 7.11.1 regression
* gdb.base/jit-attach-pie.c: New file.
* gdb.base/jit-attach-pie.exp: New file.

Frame info dump: Fix bad register marks.

On S/390 we see quite often registers marked as "bad register" in the
readelf --debug-dump=frames or objdump -Wf output.

00000000 0000000000000014 00000000 CIE
      Version:               1
      Augmentation:          "zR"
      Code alignment factor: 1
      Data alignment factor: -8
      Return address column: 14
      Augmentation data:     1b

      DW_CFA_def_cfa: r15 ofs 160
      DW_CFA_nop
      DW_CFA_nop
      DW_CFA_nop

    ...

    00000050 000000000000001c 00000054 FDE cie=00000000 pc=0000000080000e58..0000000080000e84
      DW_CFA_advance_loc: 6 to 0000000080000e5e
      DW_CFA_offset: r14 at cfa-48
      DW_CFA_offset: r15 at cfa-40
      DW_CFA_advance_loc: 6 to 0000000080000e64
      DW_CFA_def_cfa_offset: 320
      DW_CFA_advance_loc: 18 to 0000000080000e76
      DW_CFA_restore: bad register: r15              <------
      DW_CFA_restore: r14
      DW_CFA_def_cfa_offset: 160

    This is triggered by this check in display_debug_frames (dwarf.c):

case DW_CFA_restore:
  if (opa >= (unsigned int) cie->ncols
      || opa >= (unsigned int) fc->ncols)
    reg_prefix = bad_reg;

cie->ncols is number of registers referenced in the CIE which is 15 due
to r14 being given as return address column.  So for the CFA_restore of
r15 a "bad register" is being printed while the same rule on r14 is ok.

The reason for this check is to prevent wild memory accesses when
reading input with corrupted register values while accessing the
col_type/col_offset arrays. However in that case r15 is a perfectly
valid register. It just happens not to be mentioned in the CIE.  Hence
restoring the CIE rule for r15 should end up with the default rule which
is DW_CFA_undefined.

This probably wasn't observed on other platforms because they either do
not use CFA_restore (x86-64) or do not issue CFA_restore on registers
with a higher number than the return address column.

binutils/ChangeLog:

2016-09-29  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

* dwarf.c (frame_display_row): Fix formatting of return address
register column.
(display_debug_frames): Ignore invalid indices into
cie->col_type/cie->col_offset arrays and default to
DW_CF_undefined instead.

Add .cfi_val_offset GAS command.

This patch adds support for .cfi_val_offset GAS pseudo command which
maps to DW_CFA_val_offset and DW_CFA_val_offset_sf.

gas/ChangeLog:

2016-09-29  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

* doc/as.texinfo: Add docu for .cfi_val_offset.
* dw2gencfi.c (cfi_add_CFA_val_offset): New function.
(dot_cfi): Add case for DW_CFA_val_offset.
(output_cfi_insn): Likewise.
(cfi_pseudo_table): Add entry for cfi_val_offset.
* dw2gencfi.h: Add prototype for cfi_add_CFA_val_offset.
* testsuite/gas/cfi/cfi-common-8.d: New test.
* testsuite/gas/cfi/cfi-common-8.s: New test.
* testsuite/gas/cfi/cfi.exp: Run cfi-common-8 testcase.

binutils/ChangeLog:

2016-09-29  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

* dwarf.c (display_debug_frames): Adjust output line.

Disallow 3-operand cmp[l][i] for ppc64

cmp[l][o] get an optional L field only when generating 32-bit code.
dcbf, tlbie and tlbiel keep their optional L field, ditto for R field
of tbegin.  cmprb, tsr., wlcr[all] and mtsle all change to a
compulsory L field.

L field of dcbf and wclr is 2 bits.

PR 20641
include/
* opcode/ppc.h (PPC_OPERAND_OPTIONAL32): Define.
opcodes/
* ppc-opc.c (L): Make compulsory.
(LOPT): New, optional form of L.
(HTM_R): Define as LOPT.
(L0, L1): Delete.
(L32OPT): New, optional for 32-bit L.
(L2OPT): New, 2-bit L for dcbf.
(SVC_LEC): Update.
(L2): Define.
(insert_l0, extract_l0, insert_l1, extract_l2): Delete.
(powerpc_opcodes <cmpli, cmpi, cmpl, cmp>): Use L32OPT.
<dcbf>: Use L2OPT.
<tlbiel, tlbie>: Use LOPT.
<wclr, wclrall>: Use L2.
gas/
* config/tc-ppc.c (md_assemble): Handle PPC_OPERAND_OPTIONAL32.
* testsuite/gas/ppc/power8.s: Provide tbegin. operand.
* testsuite/gas/ppc/power9.d: Update cmprb disassembly.

Display .gnu.attributes tags for powerpc64

* readelf.c (process_arch_specific): Call process_power_specific
for EM_PPC64.

Automatic date update in version.in

Fix PR 20345 - call_function_by_hand_dummy: Assertion `tp->thread_fsm == &sm->thread_fsm' failed

If you run an infcall from the command line, and immediately after run
some other command, GDB incorrectly processes the other command before
the infcall finishes.

The problem is that the fix for PR gdb/20418 (Problems with
synchronous commands and new-ui, git 3eb7562a983b) moved the
add_file_handler/delete_file_handler calls out of
target_terminal_$foo, and missed adjusting the infcall code.

gdb/ChangeLog:
2016-09-28  Pedro Alves  <palves@redhat.com>

* infcall.c (run_inferior_call): Remove input from the event
loop while running the infcall.

gdb/testsuite/ChangeLog:
2016-09-28  Pedro Alves  <palves@redhat.com>

* gdb.base/infcall-input.c: New file.
* gdb.base/infcall-input.exp: New file.

Small improvements to the remote protocol manual

I was reading the gdb RSP manual recently and I found a number of
small problems in the documentation.  This patch attempts to improve
these areas.  Specfically:

* The term "memory breakpoint" is used only in this section of the
  manual, and there inconsistently.  I found this term confusing --
  initially I thought it might be a watchpoint.  This patch changes it
  to use the term "software breakpoint", which is used in the rest of
  the manual.

* The z0 packet didn't document how "kind" was written.  And, it had a
  stray link to the architecture-specific protocol details node.  This
  patch moves this link to a better spot.

* The z1 patch didn't document that it accepts cmd_list.

* I couldn't find any text saying what response is given to a command
  like vCont in non-stop mode.  The answer is that OK is sent, and
  then a stop reply is sent as a notification.  This patch adds a note
  about this.

* The "create" stop reply did not document that the "R" argument is
  ignored.

* The "W", "X", and "w" packets did not document how the "AA" part is
  formatted.

* The %Stop notification example said "%%Stop", but I think this is
  incorrect.

2016-09-28  Tom Tromey  <tom@tromey.com>

* gdb.texinfo (Packets) <z0>: Use "software breakpoint" rather
than "memory breakpoint".  Further document "kind".  Move
protocol-details link earlier.
<z1>: Document the cmd_list argument.  Fix typo.
<g>: Remove incorrect sentence.
(Stop Reply Packets): Document "OK" response to requests when in
non-stop mode.
<swbreak>: Use "software breakpoint" rather than "memory
breakpoint".
<create>: Document that "R" is ignored.
<W, X, w>: Document formatting of "AA".
(Notification Packets): Use "%Stop", not "%%Stop".

Fix seg-fault in the linker introduced by the previous delta.

PR ld/20636
* elf-bfd.h (struct elf_backend_data): Delete
elf_backend_count_output_relocs callback and add
elf_backend_update_relocs.
* elf32-arm.c (elf32_arm_count_output_relocs): Deleted.
(emit_relocs): Deleted.
(elf32_arm_emit_relocs): Deleted.
(elf_backend_emit_relocs): Updated not to use the old functions.
(elf32_arm_update_relocs): New function.
(elf_backend_update_relocs): New define.
* elflink.c (bfd_elf_final_link): Add additional_reloc_count to the
relocation count. Call elf_backend_emit_relocs.
(_bfd_elf_size_reloc_section): Do not call
elf_backend_count_output_relocs.
* elfxx-target.h (elf_backend_count_output_relocs): Deleted.
(elf_backend_update_relocs): New define.

Automatic date update in version.in

[ARM] PR ld/20608 Relocation truncated to fit: R_ARM_THM_JUMP24 for relocation to PLT entry

2016-09-28  Christophe Lyon  <christophe.lyon@linaro.org>

PR ld/20608
bfd/
* elf32-arm.c (arm_type_of_stub): Handle the case when the pre-PLT
Thumb-ARM stub is too far.

ld
* testsuite/ld-arm/arm-elf.exp: Handle new testcase.
* testsuite/ld-arm/farcall-mixed-app2.d: New file.
* testsuite/ld-arm/farcall-mixed-app2.r: Likewise.
* testsuite/ld-arm/farcall-mixed-app2.s: Likewise.
* testsuite/ld-arm/farcall-mixed-app2.sym: Likewise.

Don't treat as separate symbols if unversioned symbol is undefined.

When we see an unversioned symbol reference in a shared library, followed
by a default definition of the symbol in another shared library, we were
treating them as separate symbols. That should only happen when both are
definitions.

gold/
PR gold/20238
* symtab.cc (Symbol_table::define_default_version): Check that
unversioned symbol is defined.

Add archives and make stamps to the .gitignore file.

Ensure that the timestamp in PE/COFF headers is always initialised.

PR ld/20634
* peXXigen.c (_bfd_XXi_only_swap_filehdr_out): Put 0 in the
timestamp field if real time values are not being stored.

Detect the magic address of EXC_RETURN in ARM coretx-m profile

On ARMv6-M and ARMv7-M, the exception return address is sort of magic
address defined by the manual.  This patch is to let GDB well handle
these magic addresses.

2016-09-27  Fredrik Hederstierna  <fredrik.hederstierna@verisure.com>

* arm-tdep.c (arm_m_addr_is_magic): New function.
(arm_addr_bits_remove): Call arm_m_addr_is_magic.
(arm_m_exception_unwind_sniffer): Likewise.