PR symtab/15885
* dwarf2read.c (dw2_dump): Print some minimal information indicating
.gdb_index is in use.
* symfile.c (reread_symbols): Reset objfile->sf.

testsuite/
* gdb.dwarf2/Makefile.in (EXECUTABLES): Add gdb-index.
(clean): rm -f *.gdb-index *.with-index.
* gdb.dwarf2/gdb-index.exp: New testcase.

* NEWS: Document "mt print objfiles" now takes optional regexp.
* symmisc.c (maintenance_print_objfiles): Argument is now an optional
regexp of objfiles to print.
(_initialize_symmisc): Update doc string for "mt print objfiles".

doc/
* gdb.texinfo (Maintenance Commands): "maint print objfiles" now takes
an optional regexp.

* dwarf2read.c (write_psymtabs_to_index): Move error checks ahead of
missing debug info checks.

* lib/gdb.exp (run_on_host): Moved here from gnu-debugdata.exp.
* gdb.base/gnu-debugdata.exp (run): Moved to gdb.exp and renamed to
run_on_host.  All callers updated.

2013-08-26  Raunaq Bathija  <raunaq12@in.ibm.com>
    Ulrich Weigand  <uweigand@de.ibm.com>

* xcoffread.c (arrange_linetable): Add fix to correctly handle
line tables generated by XLC compiled binaries.

daily update

daily update

* ld-elf/comm-data.exp: Use check_shared_lib_support rather than
explicit patterns for test target qualification.  Define extra
tool flags for *-*-hpux* and tic6x-*-* targets.  Link with a
linker script.  Use alternative patterns for targets that do not
eliminate copy relocs, currently mn10300-*-* and vax-*-*.
* ld-elf/comm-data2.s: Handle HPUX's `.comm' syntax.
* ld-elf/comm-data2.ld: New test linker script.
* ld-elf/comm-data2.xd: Match section's VMA too.  Ignore ASCII
data dump.
* ld-elf/comm-data2r.rd: New test pattern.
* ld-elf/comm-data2r.sd: New test pattern.
* ld-elf/comm-data2r.xd: New test pattern.
* ld-mips-elf/comm-data.exp: Use check_shared_lib_support rather
than an explicit pattern for test target qualification.  Link
with a linker script.

* ld-arm/export-class.exp: Handle non-EABI targets.

* elf32-tilepro.c (tilepro_elf_finish_dynamic_sections): Don't
set GOT's entry size if there is no ELF section data.
* elf64-s390.c (elf_s390_finish_dynamic_sections): Likewise.
* elfxx-sparc.c (_bfd_sparc_elf_finish_dynamic_sections):
Likewise.

gdb/testsuite/

* gdb.trace/entry-values.c (end): New
(main): Call end.
* gdb.trace/entry-values.exp: Load trace-support.exp.  Set
tracepoint and collect data.  Test entry value is unavailable.

gdb/testsuite/

* lib/dwarf.exp (_location): Handle DW_OP_deref_size.
* gdb.trace/entry-values.c: New.
* gdb.trace/entry-values.exp: New.

* symmisc.c (dump_symtab): Delete prototype.
(dump_msymbols, dump_objfile): Ditto.
(maintenance_info_symtabs): Mark as dont_repeat.
(_initialize_symmisc): Improve doc string for "mt info symtabs".

* elfread.c (elf_symfile_read): Move "Done reading minimal symbols"
debugging printf to better location.

daily update

ld/testsuite/
* ld-x86-64/ilp32-4-nacl.d: Update for 2013-05-31 gas alignment change.
* ld/testsuite/ld-x86-64/tlsbin-nacl.rd: Likewise.
* ld/testsuite/ld-x86-64/tlsbindesc-nacl.rd: Likewise.
* ld/testsuite/ld-x86-64/tlsdesc-nacl.rd: Likewise.
* ld/testsuite/ld-x86-64/tlspic-nacl.rd: Likewise.

ld/
* emulparams/elf_nacl.sh (nacl_rodata_addr): Don't add in
SIZEOF_HEADERS here; elf.sc does it already.

* config/rx-parse.y: Rearrange the components of a bison grammar to issue
assembler errors at correct position.

Add get_elf_x86_64_arch_data

* elf64-x86-64.c (get_elf_x86_64_arch_data): New.
(get_elf_x86_64_backend_data): Use it.
(elf_x86_64_size_dynamic_sections): Likewise.

Remove the extra space

* doc/binutils.texi: Remove the extra space.

Fix typo.

PR binutils/15777
(nm --special-syms): Fix typo.

PR binutils/15779
* doc/binutils.texi (ranlib -D): Correct description.

opcodes/
* micromips-opc.c (micromips_opcodes): Use RD_4 for "alnv.ps",
replacing NODS.

gas/testsuite/
* gas/testsuite/gas/mips/micromips-insn32.d: Adjust for delay
slot scheduling of ALNV.PS.
* gas/testsuite/gas/mips/micromips-noinsn32.d: Likewise.
* gas/testsuite/gas/mips/micromips-trap.d: Likewise.
* gas/testsuite/gas/mips/micromips.d: Likewise.
* gas/testsuite/gas/mips/micromips@alnv_ps-swap.d: Likewise.

PR binutils/14136
(nm): Add description of 'I' symbol type.

target.c:target_read_live_memory: Fix type of local.

'ret' is used to hold the return of target_read, and pass it on.  Both
target_read and target_read_live_memory return LONGEST.

gdb/
2013-08-23  Pedro Alves  <palves@redhat.com>

* target.c (target_read_live_memory): Change type of 'ret' local
to LONGEST.

PR binutils/15798
* doc/binutils.texi (ar cmdline): Update description of 'q'
command.

remote.c: don't install a deprecated_xfer_memory hook.

There's no need for deprecated_xfer_memory nowadays.  Memory access
goes through target_xfer_partial/TARGET_OBJECT_MEMORY, etc.  In fact,
the remote target already handles that, and is deferring to the same
helpers the deprecated_xfer_memory hook is.  Basically, only a few
adjustments to make these helper routines's interfaces closer to
target_xfer_partial's were necessary.

Tested on x86_64 Fedora 17 w/ gdbserver.

gdb/
2013-08-23  Pedro Alves  <palves@redhat.com>

* remote.c (remote_write_bytes_aux, remote_write_bytes)
(remote_read_bytes): Change return type to LONGEST, and adjust to
return a target_xfer_error on error.
(remote_xfer_memory): Delete.
(remote_flash_write): Change type of 'ret' local to LONGEST.
(remote_xfer_partial, remote_xfer_partial): Adjust.
(init_remote_ops): Don't install a deprecated_xfer_memory hook.

PR binutils/15834
Fix typos:
---
 bfd/bfdio.c                                  |  2 +-
 bfd/elf32-spu.c                              |  2 +-
 bfd/elfnn-aarch64.c                          |  2 +-
 binutils/od-xcoff.c                          |  2 +-
 config/tcl.m4                                |  2 +-
 gas/config/tc-ia64.c                         |  2 +-
 gas/config/tc-sparc.c                        |  2 +-
 gas/config/tc-z80.c                          | 12 ++++++------
 gas/doc/c-i386.texi                          |  6 +++---
 gas/doc/c-m32r.texi                          |  2 +-
 gas/testsuite/gas/d10v/instruction_packing.d |  2 +-
 gas/testsuite/gas/z80/atend.d                |  2 +-
 gold/object.h                                |  2 +-
 include/gdb/remote-sim.h                     |  2 +-
 include/opcode/ChangeLog                     |  2 +-
 include/opcode/i960.h                        |  2 +-
 ld/testsuite/ld-mips-elf/mips16-pic-1.inc    |  2 +-
 opcodes/aarch64-asm.c                        |  2 +-
 opcodes/aarch64-dis.c                        |  2 +-
 opcodes/msp430-dis.c                         |  2 +-

PR ld/15839
* scripttempl/avr.sc: Do not include gc'able sections into general
sections during relocatable links.

gas/config/tc-arm.c: Improve validation of NEON addressing modes.

NEON vector load and store instructions do not accept immediates
or pre-indexed base plus offset addressing modes, so make sure that
the assembler enforces this.

gas/ChangeLog:

2013-08-23  Will Newton  <will.newton@linaro.org>

* config/tc-arm.c (do_neon_ldx_stx): Add extra constraints
for pre-indexed addressing modes.
* testsuite/gas/arm/neon-addressing-bad.l: Add test for
VLDn and VSTn instructions.
* testsuite/gas/arm/neon-addressing-bad.s: Likewise.

gas/testsuite/ChangeLog:

2013-08-23  Will Newton  <will.newton@linaro.org>

* testsuite/gas/arm/neon-addressing-bad.l: Add test for
VLDn and VSTn instructions.
* testsuite/gas/arm/neon-addressing-bad.s: Likewise.

ARI fix: Push # directives to start of line.
* rs6000-nat.c (rs6000_ptrace32, rs6000_ptrace64): Rule applied.

2013-08-12  Muhammad Waqas  <mwaqas@codesourcery.com>

PR gdb/15501
* breakpoint.c (enable_command, disable_command): Iterate over
all specified breakpoint locations.
2013-07-12  Muhammad Waqas  <mwaqas@codesourccery.com>

PR gdb/15501
* gdb.base/ena-dis-br.exp: Add test to verify
  enable/disable commands work correctly with
multiple arguments that include multiple locations.

* common/linux-ptrace.c (linux_fork_to_function): Push #
directives to the start of the line.
(linux_check_ptrace_features): Fix warning message to use
the "_" markup.

daily update

Unify ptrace options discovery code and make both GDB and
gdbserver use it.

gdb/
* Makefile.in (HFILES_NO_SRCDIR): Add nat/linux-nat.h and
nat/linux-waitpid.h.
(linux-waitpid.o): New object file rule.
* common/linux-ptrace.c: Include nat/linux-waitpid.h.
(current_ptrace_options): Moved from linux-nat.c.
(linux_ptrace_test_ret_to_nx): Use type casts for ptrace
parameters.
(linux_fork_to_function): New function.
(linux_grandchild_function): Likewise.
(linux_child_function): Likewise.
(linux_check_ptrace_features): New function, heavily
based on linux-nat.c:linux_test_for_tracefork.
(linux_enable_event_reporting): New function.
(ptrace_supports_feature): Likewise.
(linux_supports_tracefork): Likewise.
(linux_supports_traceclone): Likewise.
(linux_supports_tracevforkdone): Likewise.
(linux_supports_tracesysgood): Likewise.
* common/linux-ptrace.h (HAS_NOMMU): Moved from
gdbserver/linux-low.c.
(linux_enable_event_reporting): New declaration.
(linux_supports_tracefork): Likewise.
(linux_supports_traceclone): Likewise.
(linux_supports_tracevforkdone): Likewise.
(linux_supports_tracesysgood): Likewise.
* config.in (PTRACE_TYPE_ARG4): Regenerate.
* config/aarch64/linux.mh (NATDEPFILES): Add linux-waitpid.o.
* config/alpha/alpha-linux.mh (NATDEPFILES): Likewise.
* config/arm/linux.mh (NATDEPFILES): Likewise.
* config/i386/linux.mh (NATDEPFILES): Likewise.
* config/i386/linux64.mh (NATDEPFILES): Likewise.
* config/ia64/linux.mh (NATDEPFILES): Likewise.
* config/m32r/linux.mh (NATDEPFILES): Likewise.
* config/m68k/linux.mh (NATDEPFILES): Likewise.
* config/mips/linux.mh (NATDEPFILES): Likewise.
* config/pa/linux.mh (NATDEPFILES): Likewise..
* config/powerpc/linux.mh (NATDEPFILES): Likewise..
* config/powerpc/ppc64-linux.mh (NATDEPFILES): Likewise.
* config/powerpc/spu-linux.mh (NATDEPFILES): Likewise.
* config/sparc/linux.mh (NATDEPFILES): Likewise.
* config/sparc/linux64.mh (NATDEPFILES): Likewise.
* config/tilegx/linux.mh (NATDEPFILES): Likewise.
* config/xtensa/linux.mh (NATDEPFILES): Likewise.
* configure.ac (AC_CACHE_CHECK): Add void * to the list of
ptrace's 4th argument's types.
Check the type of PTRACE_TYPE_ARG4.
* configure: Regenerate.
* linux-nat.c: Include nat/linux-nat.h and nat/linux-waitpid.h.
(SYSCALL_SIGTRAP): Moved to nat/linux-nat.h.
(linux_supports_tracefork_flag): Remove.
(linux_supports_tracesysgood_flag): Likewise.
(linux_supports_tracevforkdone_flag): Likewise.
(current_ptrace_options): Moved to
common/linux-ptrace.c.
(linux_tracefork_child): Remove.
(my_waitpid): Remove.
(linux_test_for_tracefork): Renamed to
linux_check_ptrace_features and moved to common/linux-ptrace.c.
(linux_test_for_tracesysgood): Remove.
(linux_supports_tracesysgood): Remove.
(linux_supports_tracefork): Remove.
(linux_supports_tracevforkdone): Remove.
(linux_enable_tracesysgood): Remove.
(linux_enable_event_reporting): Remove.
(linux_init_ptrace): New function.
(linux_child_post_attach): Call linux_init_ptrace.
(linux_child_post_startup_inferior): Call linux_init_ptrace.
(linux_child_follow_fork): Call linux_supports_tracefork
and linux_supports_tracevforkdone.
(linux_child_insert_fork_catchpoint): Call
linux_supports_tracefork.
(linux_child_insert_vfork_catchpoint): Likewise.
(linux_child_set_syscall_catchpoint): Call
linux_supports_tracesysgood.
(lin_lwp_attach_lwp): Call linux_supports_tracefork.
* nat/linux-nat.h: New file.
* nat/linux-waitpid.c: New file.
* nat/linux-waitpid.h: New file.

gdb/gdbserver/
* Makefile.in: Explain why ../target and ../nat are not
listed as include file search paths.
(linux-waitpid.o): New object file rule.
* configure.srv (srv_native_linux_obj): New variable.
Replace all occurrences of linux native object files with
$srv_native_linux_obj.
* linux-low.c: Include nat/linux-nat.h and nat/linux-waitpid.h.
(HAS_NOMMU): Move defining logic to common/linux-ptrace.c.
(linux_enable_event_reporting): Remove declaration.
(my_waitpid): Moved to common/linux-waitpid.c.
(linux_wait_for_event): Pass ptid when calling
linux_enable_event_reporting.
(linux_supports_tracefork_flag): Remove.
(linux_enable_event_reporting): Likewise.
(linux_tracefork_grandchild): Remove.
(STACK_SIZE): Moved to common/linux-ptrace.c.
(linux_tracefork_child): Remove.
(linux_test_for_tracefork): Remove.
(linux_look_up_symbols): Call linux_supports_traceclone.
(initialize_low): Remove call to linux_test_for_tracefork.
* linux-low.h (PTRACE_TYPE_ARG3): Move to
common/linux-ptrace.h.
(PTRACE_TYPE_ARG4): Likewise.
Include linux-ptrace.h.

Adding missing files from my last commit.

[Committing the `catch syscall' patch for ARM, from Samuel Bronson.]

This time, it passes all the tests and comes with a nearly complete
XML file (plus a script that can nearly regenerate the XML file).

(I elected to leave out __ARM_NR_cmpxchg, since it has dire warnings
to the effect that the only pieces of code that should be aware of it
are the implementation and the __kuser_cmpxchg code in entry-armv.S.)

gdb/
2013-08-14  Samuel Bronson  <naesten@gmail.com>

ARM Linux support for `catch syscall'.
* syscalls/arm-linux.py: New file.
* syscalls/arm-linux.xml: Likewise.
* arm-linux-tdep.c (arm_linux_get_syscall_number): New function.
(arm_linux_init_abi): Register the new function and syscall xml file.
* data-directory/Makefile.in: Install the new syscall xml file.
* NEWS: Brag about this.

gdb/testsuite/
2013-08-14  Samuel Bronson  <naesten@gmail.com>

ARM Linux support for `catch syscall'.
* gdb.base/catch-syscall.exp: Test this on ARM now.
(fill_all_syscalls_numbers): ARM has close/chroot on 6/61, too.

* emultempl/pe.em: Add --disable-large-address-aware option.
* ld.texinfo (--disable-large-address-aware): Add documentation.

fix dwz.exp on 32-bit targets

This fixes dwz.exp on 32-bit targets.  It does so by introducing a new
"default" setting for the address size in the DWARF assembler.

Built and regtested on x86-64 Fedora 18.
I also ran the gdb.dwarf2 tests on an x86 machine (gcc45).

* lib/dwarf.exp (cu, tu): Handle addr_size of "default".  Change
default addr_size.
* lib/gdb.exp (is_64_target): New gdb_caching_proc.

convert one more caching proc

I noticed that skip_btrace_tests is a classic "caching proc" that I
missed when I added gdb_caching_proc.  This patch converts it.

Built and regtested on x86-64 Fedora 18.

* lib/gdb.exp (skip_btrace_tests): Use gdb_caching_proc and
standard_temp_file.

fix gdb.arch to be parallel-safe

This fixes parts of gdb.arch to be parallel-safe.
I only changed the bits I could test on this machine.

I don't have access to many of the machines needed to fully switch
gdb.arch; but I am happy to provide advice to others attempting this.
Or, I can send an untested patch to convert it all.

Tested on x86-64 Fedora 18.

* gdb.arch/amd64-byte.exp: Use standard_testfile,
clean_restart.
* gdb.arch/amd64-disp-step.exp: Use standard_testfile.
* gdb.arch/amd64-dword.exp: Use standard_testfile,
clean_restart.
* gdb.arch/amd64-entry-value-param.exp: Use standard_testfile.
* gdb.arch/amd64-entry-value.exp: Use standard_testfile.
* gdb.arch/amd64-prologue-xmm.exp: Use standard_testfile.
* gdb.arch/amd64-word.exp: Use standard_testfile,
clean_restart.
* gdb.arch/i386-avx.exp: Use standard_testfile, clean_restart.
* gdb.arch/i386-byte.exp: Use standard_testfile, clean_restart.
* gdb.arch/i386-disp-step.exp: Use standard_testfile.
* gdb.arch/i386-dr3-watch.exp: Use standard_testfile.
* gdb.arch/i386-permbkpt.exp: Use standard_testfile, clean_restart.
* gdb.arch/i386-signal.exp: Use standard_testfile.
* gdb.arch/i386-size-overlap.exp: Use standard_testfile, clean_restart.
* gdb.arch/i386-sse.exp: Use standard_testfile, clean_restart.
* gdb.arch/i386-unwind.exp: Use standard_testfile.
* gdb.arch/i386-word.exp: Use standard_testfile, clean_restart.

fix gdb.python to be parallel-safe

This fixes gdb.python to be parallel-safe, mostly by changing it to
use gdb_remote_download.

Tested on x86-64 Fedora 18.

* gdb.python/py-error.exp: Use gdb_remote_download.
* gdb.python/py-mi.exp: Use gdb_remote_download.
* gdb.python/py-objfile-script.exp: Use standard_output_file.
* gdb.python/py-prettyprint.exp: Use gdb_remote_download.
(run_lang_tests): Likewise.
* gdb.python/py-section-script.c: Use SCRIPT_FILE rather than
filename.
* gdb.python/py-section-script.exp: Set SCRIPT_FILE when
compiling.  Use gdb_remote_download.  Update some tests.
* gdb.python/py-strfns.exp (test_strfns_core_file): Use
standard_output_file.
* gdb.python/py-typeprint.exp: Use gdb_remote_download.
* gdb.python/py-frame-args.exp: Use gdb_remote_download.
* gdb.python/py-framefilter-mi.exp: Use gdb_remote_download.
* gdb.python/py-framefilter.exp: Use gdb_remote_download,
standard_output_file.

use standard_temp_file in another caching proc

In an earlier patch I forgot to change the caching proc in cell.exp to
use standard_temp_file.  This fixes the oversight.

Tested on x86-64 Fedora 18.

       * lib/cell.exp (skip_cell_tests): Use standard_temp_file.

introduce gdb_remote_download and finish parallel fixes in gdb.dwarf2

This finishes making gdb.dwarf2 parallel-safe.

To do this, this patch introduces a new gdb_remote_download proc, that
works somewhat differently in the one specific case where it matters:
for a copy to "host", if no destination was given, and the host is not
actually remote, then standard_output_file is used.  In parallel mode
this guarantees that the resulting file will end up in a parallel-safe
location.

Tested on x86-64 Fedora 18.

* gdb.dwarf2/dw2-basic.exp: Use gdb_remote_download.
* gdb.dwarf2/dw2-compressed.exp: Use gdb_remote_download.
* gdb.dwarf2/dw2-intercu.exp: Use gdb_remote_download.
* gdb.dwarf2/dw2-intermix.exp: Use gdb_remote_download.
* gdb.dwarf2/dw2-producer.exp: Use gdb_remote_download.
* gdb.dwarf2/mac-fileno.exp: Use gdb_remote_download.
* lib/gdb.exp (gdb_remote_download): New proc.

fix some gdb.dwarf2 tests for parallel safety

This fixes a few gdb.dwarf2 tests to be more parallel-safe.  This
mostly amounts to changing them to write their files into the
directory designated by standard_output_file.

Built and regtested on x86-64 Fedora 18.

* gdb.dwarf2/clztest.exp: Use standard_testfile.
* gdb.dwarf2/dw2-minsym-in-cu.exp: Use standard_testfile.
* gdb.dwarf2/fission-base.S: Remove directory from
DW_AT_GNU_dwo_name.
* gdb.dwarf2/fission-base.exp: Use build_executable.  Set
debug-file-directory.
* gdb.dwarf2/fission-reread.S: Remove directory from
DW_AT_GNU_dwo_name.
* gdb.dwarf2/fission-reread.exp: Use build_executable.  Set
debug-file-directory.

* binutils-all/nm.exp: --size-sort test: Add more ELF-like
targets.
* binutils-all/nm-1.s: Use .byte instead of .long.
Provide a terminating symbol.

PR gdb/15871: Unavailable entry value is not shown correctly

In entry-values.exp, we have a test where the entry value of 'j' is
unavailable, so it is expected that printing j@entry yields
"<unavailable>".  However, the actual output is:

 (gdb) frame
 #0  0x0000000000400540 in foo (i=0, i@entry=2, j=2, j@entry=<error reading variable: Cannot access memory at address 0x6009e8>)

The error is thrown here:

#0  throw_it (reason=RETURN_ERROR, error=MEMORY_ERROR, fmt=0x8cd550 "Cannot access memory at address %s", ap=0x7fffffffc8e8) at ../../src/gdb/exceptions.c:373
#1  0x00000000005e2f9c in throw_error (error=MEMORY_ERROR, fmt=0x8cd550 "Cannot access memory at address %s") at ../../src/gdb/exceptions.c:422
#2  0x0000000000673a5f in memory_error (status=5, memaddr=6293992) at ../../src/gdb/corefile.c:204
#3  0x0000000000673aea in read_memory (memaddr=6293992, myaddr=0x7fffffffca60 "\200\316\377\377\377\177", len=4) at ../../src/gdb/corefile.c:223
#4  0x00000000006784d1 in dwarf_expr_read_mem (baton=0x7fffffffcd50, buf=0x7fffffffca60 "\200\316\377\377\377\177", addr=6293992, len=4) at ../../src/gdb/dwarf2loc.c:334
#5  0x000000000067645e in execute_stack_op (ctx=0x1409480, op_ptr=0x7fffffffce87 "\237<\005@", op_end=0x7fffffffce88 "<\005@") at ../../src/gdb/dwarf2expr.c:1045
#6  0x0000000000674e29 in dwarf_expr_eval (ctx=0x1409480, addr=0x7fffffffce80 "\003\350\t`", len=8) at ../../src/gdb/dwarf2expr.c:364
#7  0x000000000067c5b2 in dwarf2_evaluate_loc_desc_full (type=0x10876d0, frame=0xd8ecc0, data=0x7fffffffce80 "\003\350\t`", size=8, per_cu=0xf24c40, byte_offset=0)
    at ../../src/gdb/dwarf2loc.c:2236
#8  0x000000000067cc65 in dwarf2_evaluate_loc_desc (type=0x10876d0, frame=0xd8ecc0, data=0x7fffffffce80 "\003\350\t`", size=8, per_cu=0xf24c40)
    at ../../src/gdb/dwarf2loc.c:2407
#9  0x000000000067a5d4 in dwarf_entry_parameter_to_value (parameter=0x13a7960, deref_size=18446744073709551615, type=0x10876d0, caller_frame=0xd8ecc0, per_cu=0xf24c40)
    at ../../src/gdb/dwarf2loc.c:1160
#10 0x000000000067a962 in value_of_dwarf_reg_entry (type=0x10876d0, frame=0xd8de70, kind=CALL_SITE_PARAMETER_DWARF_REG, kind_u=...) at ../../src/gdb/dwarf2loc.c:1310
#11 0x000000000067aaca in value_of_dwarf_block_entry (type=0x10876d0, frame=0xd8de70, block=0xf1c2d4 "Q", block_len=1) at ../../src/gdb/dwarf2loc.c:1363
#12 0x000000000067e7c9 in locexpr_read_variable_at_entry (symbol=0x13a7540, frame=0xd8de70) at ../../src/gdb/dwarf2loc.c:3326
#13 0x00000000005daab6 in read_frame_arg (sym=0x13a7540, frame=0xd8de70, argp=0x7fffffffd0e0, entryargp=0x7fffffffd100) at ../../src/gdb/stack.c:362
#14 0x00000000005db384 in print_frame_args (func=0x13a7470, frame=0xd8de70, num=-1, stream=0xea3890) at ../../src/gdb/stack.c:669
#15 0x00000000005dc338 in print_frame (frame=0xd8de70, print_level=1, print_what=SRC_AND_LOC, print_args=1, sal=...) at ../../src/gdb/stack.c:1199
#16 0x00000000005db8ee in print_frame_info (frame=0xd8de70, print_level=1, print_what=SRC_AND_LOC, print_args=1) at ../../src/gdb/stack.c:851
#17 0x00000000005da2bb in print_stack_frame (frame=0xd8de70, print_level=1, print_what=SRC_AND_LOC) at ../../src/gdb/stack.c:169
#18 0x00000000005de236 in frame_command (level_exp=0x0, from_tty=1) at ../../src/gdb/stack.c:2265

dwarf2_evaluate_loc_desc_full (frame #7) knows to handle
NOT_AVAILABLE_ERROR errors, but read_memory always throws
a generic error.

Presently, only the value machinery knows to handle unavailable
memory.  We need to push the awareness down to the target_xfer layer,
making it return a finer grained error indication.  We can only return
a generic -1 nowadays, which leaves the upper layers with no clue on
why the xfer failed.  Use target_xfer_partial directly, rather than
propagating the error through target_read_memory so as to get a better
address to display in the error message.

(target_read_memory & friends build on top of target_read (thus the
target_xfer machinery), but turn all errors to EIO, an errno value.  I
think this is a mistake, and we'd better convert all these to return a
target_xfer_error too, but that can be done separately.  I looked
around a bit over memory_error calls, and the need to handle random
errno values, other than the EIOs gdb itself hardcodes, probably comes
(only) from deprecated_xfer_memory, which uses errno for error
indication, but I didn't look exhaustively.  We should really get rid
of deprecated_xfer_memory and of passing down errno values as error
indication in target_read & friends methods).

Tested on x86_64 Fedora 17, native and gdbserver.  Fixes the test in
the PR, which will be added to the testsuite later.

gdb/
2013-08-22  Pedro Alves  <palves@redhat.com>

PR gdb/15871
* corefile.c (target_xfer_memory_error): New function.
(memory_error): Defer EIO to target_memory_error.
(read_memory): Use target_xfer_partial, and handle finer-grained
target xfer errors.
* target.c (target_xfer_error_to_string): New function.
(memory_xfer_partial_1): If memory is known to be
unavailable, return TARGET_XFER_E_UNAVAILABLE instead of -1.
(target_xfer_partial): Make extern.
* target.h (enum target_xfer_error): New enum.
(target_xfer_error_to_string): Declare function.
(target_xfer_partial): Declare function.
(struct target_ops) <xfer_partial>: Adjust describing comment.

* ld-powerpc/powerpc.exp: Substitute for le in options_regsub(ld).
Correct ppc64elftests option replacement.
(supports_ppc64): Match elf64lppc too.
* ld-powerpc/relbrlt.d: Update for little-endian.
* ld-powerpc/symtocbase.d: Likewise.
* ld-powerpc/tls.t: Likewise.
* ld-powerpc/tlsexetoc.g: Likewise.
* ld-powerpc/tlsso.d: Likewise.
* ld-powerpc/tlsso.g: Likewise.
* ld-powerpc/tlstoc.t: Likewise.
* ld-powerpc/tlstocso.d: Likewise.
* ld-powerpc/tlstocso.g: Likewise.
* ld-powerpc/tlstocso.t: Likewise.
* ld-powerpc/tocopt.d: Likewise.
* ld-powerpc/tocopt2.d: Likewise.
* ld-powerpc/tocopt3.d: Likewise.
* ld-powerpc/tocopt4.d: Likewise.
* ld-powerpc/tocopt5.d: Likewise.

* configure.host: Support powerpc64le-linux and powerpcle-linux hosts.
* configure.tgt: Likewise as targets.

daily update

Renegerate gdbserver/config.in.

In:
    gdb/gdbserver/
    2013-07-03  Pedro Alves  <palves@redhat.com>

        * Makefile.in (config.status): Depend on development.sh.
        * acinclude.m4: Include libmcheck.m4.
        * configure: Regenerate.

I missed regenerating config.in...

Tested on x86_64 Fedora 17.

gdb/gdbserver/
2013-08-21  Pedro Alves  <palves@redhat.com>

* config.in: Renegerate.

Fix whitespace.

2013-08-21  Tristan Gingold  <gingold@adacore.com>

* coff-rs6000.c (_bfd_xcoff_sizeof_headers): Also count
.ovrflo sections.
* coffcode.h (coff_compute_section_file_positions): Force
match between file offset and vma offset.

Fix typo

* symbols.c (fb_label_instance_inc, fb_label_instance): Properly
range check label number for use with fb_low_counter array.

* elflink.c (_bfd_elf_merge_symbol): Set *poldbfd, *poldweak,
and *poldalignment before exiting when !relocs_compatible.

* elflink.c (_bfd_elf_define_linkage_sym): Don't set STV_INTERNAL
symbols to STV_HIDDEN.

daily update

* binutils-all/nm.exp: Revert last change.  Instead use nm-elf-1.s
for mmix-knuth-mmixware.

* buildsym.c (subfile_stack): Move here from buildsym.h.
(pending_macros): Ditto.
(get_macro_table): New function.
(buildsym_init): Initialize subfile_stack.
* coffread.c (type_vector,type_vector_length): Moved here from
buildsym.h.
(INITIAL_TYPE_VECTOR_LENGTH): Ditto.
(coff_symtab_read): Use it.
* dbxread.c (read_ofile_symtab): Delete init of subfile_stack.
* dwarf2read.c (macro_start_file): Replace uses of pending_macros
with call to get_macro_table.
* stabsread.c (type_vector,type_vector_length): Moved here from
buildsym.h.
(INITIAL_TYPE_VECTOR_LENGTH): Ditto.
* buildsym.h (get_macro_table): Declare.

* dbxread.c (record_minimal_symbol): Make 'name' argument const.
Update.
(read_dbx_dynamic_symtab): Make 'name' const.  Remove casts.

* blockframe.c: Remove #include "psymtab.h".
* cp-support.c: Ditto.
* source.c: Ditto.
* stack.c: Ditto.

fix PR python/15816

This fixes PR python/15816.

The bug here is that python-selftest.exp can fail:

    No symbol "RETURN_MASK_ALL" in current context.

RETURN_MASK_ALL is a macro, so if macros do not end up in the
debuginfo (very typical) then the test fails.

It seemed simplest to me to simply turn the RETURN_MASK_ defines into
enum constants.  This way they end up in the debuginfo and all is
well.

PR python/15816:
* exceptions.h (return_mask): Now an enum.
(RETURN_MASK_QUIT, RETURN_MASK_ERROR, RETURN_MASK_ALL): Now
enum constants.

Built and regtested on x86-64 Fedora 18.

move gdbarch object from objfile to per-BFD

This moves the "gdbarch" field from the objfile into the BFD.

This field's value is derived from the BFD and is immutable over the
lifetime of the BFD.  This makes it a reasonable candidate for pushing
into the per-BFD object.

This is part of the long-term objfile splitting project.  In the long
run I think this patch will make it simpler to moves types from the
objfile to the per-BFD object; but the patch makes sense as a minor
cleanup by itself.

Built and regtested on x86-64 Fedora 18.

* cp-namespace.c (cp_lookup_symbol_imports_or_template): Use
get_objfile_arch.
* elfread.c (elf_rel_plt_read, elf_gnu_ifunc_record_cache)
(elf_gnu_ifunc_resolve_by_got): Use get_objfile_arch.
* jit.c (jit_object_close_impl): Update.
* jv-lang.c (get_dynamics_objfile): Update.
* linespec.c (add_minsym): Use get_dynamics_objfile.
* objfiles.c (get_objfile_bfd_data): Initialize 'gdbarch' field.
(allocate_objfile): Don't initialize 'gdbarch' field.
(get_objfile_arch): Update.
* objfiles.h (struct objfile_per_bfd_storage) <gdbarch>: New field,
moved from...
(struct objfile) <gdbarch>: ... here.  Remove.
* stap-probe.c (stap_can_evaluate_probe_arguments): Use
get_objfile_arch.
* symfile.c (init_entry_point_info): Use get_objfile_arch.

* doublest.c (convert_floatformat_to_doublest): Use fmt->split_half
for IBM long double nan and inf.
(floatformat_is_negative, floatformat_classify,
floatformat_mantissa): Similarly.
(floatformat_ieee_single, floatformat_ieee_double,
floatformat_ieee_quad, floatformat_arm_ext,
floatformat_ia64_spill): Delete unused vars.
(_initialize_doublest): Delete unused function.
* gdbtypes.c (floatformats_ibm_long_double): Use new big- and
little-endian variants of floatformat_ibm_long_double.

merge from gcc

* binutils-all/nm.exp: Xfail test for nm --size-sort for
mmix-knuth-mmixware.

daily update

gas/
* config/tc-mips.c (mips_check_isa_supports_ase, reg_lookup)
(mips_parse_argument_token, validate_micromips_insn, md_begin)
(check_regno, match_float_constant, check_completed_insn, append_insn)
(match_insn, match_mips16_insn, match_insns, macro_start)
(macro_build_ldst_constoffset, load_register, macro, mips_ip)
(mips16_ip, mips_set_option_string, md_parse_option)
(mips_after_parse_args, mips_after_parse_args, md_pcrel_from)
(md_apply_fix, s_align, s_option, s_mipsset, s_tls_rel_directive)
(s_gpword, s_gpdword, s_ehword, s_nan, tc_gen_reloc, md_convert_frag)
(s_mips_end, s_mips_ent, s_mips_frame, s_mips_mask, mips_parse_cpu):
Start error messages with a lower-case letter.  Do not end error
messages with a period.  Wrap long messages to 80 character-lines.
Use "cannot" instead of "can't" and "can not".

gas/testsuite/
* gas/mips/ase-errors-1.l, gas/mips/ase-errors-2.l,
gas/mips/ase-errors-3.l, gas/mips/ase-errors-4.l, gas/mips/at-2.l,
gas/mips/baddata1.l, gas/mips/elf-rel30.l, gas/mips/illegal.l,
gas/mips/jalr.l, gas/mips/ldstla-32-1.l, gas/mips/ldstla-32-mips3-1.l,
gas/mips/lui-1.l, gas/mips/macro-warn-1.l, gas/mips/macro-warn-1-n32.l,
gas/mips/macro-warn-2.l, gas/mips/macro-warn-3.l,
gas/mips/macro-warn-4.l, gas/mips/micromips-branch-delay.l,
gas/mips/micromips-branch-relax.l,
gas/mips/micromips-branch-relax-pic.l, gas/mips/micromips-ill.l,
gas/mips/micromips.l, gas/mips/micromips-size-0.l,
gas/mips/micromips-size-1.l, gas/mips/micromips-warn-branch-delay.l,
gas/mips/micromips-warn.l, gas/mips/mips16e-64.l,
gas/mips/mips16e-save-err.l, gas/mips/mips1-fp.l,
gas/mips/mips32r2-fp32.l, gas/mips/mips32r2-ill.l,
gas/mips/mips32-sf32.l, gas/mips/mips4-branch-likely.l,
gas/mips/mips4-fp.l, gas/mips/mips5-fp.l, gas/mips/mips64-mips3d.l,
gas/mips/mips-double-float-flag.l, gas/mips/mips-gp64-fp32.l,
gas/mips/mips-gp64-fp64.l, gas/mips/mips-hard-float-flag.l,
gas/mips/mips-macro-ill-nofp.l, gas/mips/mips-macro-ill-sfp.l,
gas/mips/nan-error-1.l, gas/mips/nan-error-2.l, gas/mips/noat-2.l,
gas/mips/noat-3.l, gas/mips/noat-4.l, gas/mips/noat-5.l,
gas/mips/noat-6.l, gas/mips/noat-7.l, gas/mips/octeon-ill.l,
gas/mips/r5900-error-vu0.l, gas/mips/r5900-nollsc.l,
gas/mips/relax-bc1any.l, gas/mips/relax-bposge.l, gas/mips/relax.l,
gas/mips/relax-swap1.l, gas/mips/relax-swap2.l, gas/mips/set-arch.l,
gas/mips/tls-ill.l, gas/mips/vr5400-ill.l: Adjust expected output.

gas/
* config/tc-mips.c (imm_expr): Expand comment.
(set_at, macro, mips16_macro): Expect imm_expr to be O_constant
when populated.

include/opcode/
* mips.h: Remove references to "+I" and imm2_expr.

gas/
* config/tc-mips.c (imm2_expr): Delete.
(md_assemble, match_insn, imm2_expr.X_op, mips_ip): Update accordingly.

include/opcode/
* mips.h (M_DEXT, M_DINS): Delete.

opcodes/
* micromips-opc.c (micromips_opcodes): Replace "dext" and "dins"
macro entries with "dextm", "dextu", "dinsm" and "dinsu" aliases.
Use +H rather than +C for the real "dext".
* mips-opc.c (mips_builtin_opcodes): Likewise.

gas/
* config/tc-mips.c (report_bad_range, report_bad_field): Delete.
(macro): Remove M_DEXT and M_DINS handling.

gas/testsuite/
* gas/mips/ext-ill.l, gas/mips/mips64r2-ill.l: Expect DEXT and DINS
error messages to have the same form as the EXT and INS ones.
* gas/mips/micromips-insn32.d, gas/mips/micromips-noinsn32.d,
gas/mips/micromips-trap.d, gas/mips/micromips.d,
gas/mips/micromips@mips64r2.d, gas/mips/mips64r2.d: Expect
"dext" and "dins" instead of "dextm", "dextu", "dinsm" and "dinsu".

gas/
* config/tc-mips.c (mips_arg_info): Replace allow_nonconst and
lax_max with lax_match.
(match_int_operand): Update accordingly.  Don't report an error
for !lax_match-only cases.
(match_insn): Replace more_alts with lax_match and use it to
initialize the mips_arg_info field.  Add a complete_p parameter.
Handle implicit VU0 suffixes here.
(match_invalid_for_isa, match_insns, match_mips16_insns): New
functions.
(mips_ip, mips16_ip): Use them.

gas/
* config/tc-mips.c (match_expression):  Report uses of registers here.
Add a "must be an immediate expression" error.  Handle elided offsets
here rather than...
(match_int_operand): ...here.

gas/testsuite/
* gas/mips/octeon-ill.l: Adjust expected output.
* gas/mips/lui-1.l, gas/mips/lui-1.s: Add more cases.

gas/
* config/tc-mips.c (mips_arg_info): Remove soft_match.
(match_out_of_range, match_not_constant): New functions.
(match_const_int): Remove fallback parameter and check for soft_match.
Use match_not_constant.
(match_mapped_int_operand, match_addiusp_operand)
(match_perf_reg_operand, match_save_restore_list_operand)
(match_mdmx_imm_reg_operand): Update accordingly.  Use
match_out_of_range and set_insn_error* instead of as_bad.
(match_int_operand): Likewise.  Use match_not_constant in the
!allows_nonconst case.
(match_float_constant): Report invalid float constants.
(match_insn, match_mips16_insn): Remove soft_match code.  Rely on
match_float_constant to check for invalid constants.  Fail the
match if match_const_int or match_float_constant return false.
(mips_ip): Update accordingly.
(mips16_ip): Likewise.  Undo null termination of instruction name
once lookup is complete.

gas/testsuite/
* gas/mips/ext-ill.l, gas/mips/lui-1.l, gas/mips/mips16e-64.l,
gas/mips/mips32r2-ill-fp64.l, gas/mips/mips32r2-ill-nofp.l,
gas/mips/mips32r2-ill.l, gas/mips/mips64r2-ill.l,
gas/mips/octeon-ill.l, gas/mips/r5900-error-vu0.l,
gas/mips/vr5400-ill.l: Adjust expected errors.
* gas/mips/micromips-size-0.l,
gas/mips/micromips-size-0.s: Likewise.  Add new tests.
* gas/mips/mips16e-save-err.s, gas/mips/mips16e-save-err.l: New test.
* gas/mips/mips.exp: Run it.

gas/
* config/tc-mips.c (mips_insn_error_format): New enum.
(mips_insn_error): New struct.
(insn_error): Change to a mips_insn_error.
(clear_insn_error, set_insn_error_format, set_insn_error)
(set_insn_error_i, set_insn_error_ss, report_insn_error): New
functions.
(mips_parse_argument_token, md_assemble, match_insn)
(match_mips16_insn): Use them instead of manipulating insn_error
directly.
(mips_ip, mips16_ip): Likewise.  Simplify control flow.

gas/testsuite/
* gas/mips/micromips-ill.l: Expect "floating-point expression required"

gas/
* config/tc-mips.c (normalize_constant_expr): Move further up file.
(normalize_address_expr): Likewise.
(match_insn, match_mips16_insn): New functions, split out from...
(mips_ip, mips16_ip): ...here.

include/opcode/
* mips.h (OP_OPTIONAL_REG): New mips_operand_type.
(mips_optional_operand_p): New function.

opcodes/
* mips-formats.h (OPTIONAL_REG, OPTIONAL_MAPPED_REG): New macros.
* micromips-opc.c (decode_micromips_operand): Use OPTIONAL_REG
and OPTIONAL_MAPPED_REG.
* mips-opc.c (decode_mips_operand): Likewise.
* mips16-opc.c (decode_mips16_operand): Likewise.
* mips-dis.c (print_insn_arg): Handle OP_OPTIONAL_REG.

gas/
* config/tc-mips.c (operand_reg_mask, match_operand): Handle
OP_OPTIONAL_REG.
(mips_ip, mips16_ip): Use mips_optional_operand_p to check
for optional operands.

gdb/
* Makefile.in (SFILES): Remove common/target-common.c and
add target/waitstatus.c.
(HFILES_NO_SRCDIR): Remove common/target-common.h and add
target/resume.h, target/wait.h and target/waitstatus.h.
(COMMON_OBS): Remove target-common.o and add
waitstatus.o.
(target-common.o): Remove.
(waitstatus.o): New target object file.
* common/target-common.c: Move contents to
target/waitstatus.c and remove.
* common/target-common.h: Move contents to other files and
remove.
(enum resume_kind: Move to target/resume.h.
(TARGET_WNOHANG): Move to target/wait.h.
(enum target_waitkind): Move to target/waitstatus.h.
(struct target_waitstatus): Likewise.
* target.h: Do not include target-common.h and
include target/resume.h, target/wait.h and
target/waitstatus.h.
* target/resume.h: New file.
* target/wait.h: New file.
* target/waitstatus.h: New file.
* target/waitstatus.c: New file.

gdb/gdbserver/
* Makefile.in (INCLUDE_CFLAGS): Include -I$(srcdir)/../.
(SFILES): Remove $(srcdir)/common/target-common.c and
add $(srcdir)/target/waitstatus.c.
(OBS): Remove target-common.o and add waitstatus.o.
(server_h): Remove $(srcdir)/../common/target-common.h and
add $(srcdir)/../target/resume.h, $(srcdir)/../target/wait.h
and $(srcdir)/../target/waitstatus.h.
(target-common.o): Remove.
(waitstatus.o): New target object file.
* target.h: Do not include target-common.h and
include target/resume.h, target/wait.h and
target/waitstatus.h.

Remove PREFIX_EVEX_0F3A3E and PREFIX_EVEX_0F3A3F

* i386-dis.c (PREFIX_EVEX_0F3A3E): Removed.
(PREFIX_EVEX_0F3A3F): Likewise.
* i386-dis-evex.h (evex_table): Updated.

binutils/
2013-08-19  Tristan Gingold  <gingold@adacore.com>

* nm.c (print_size_symbols): Directly get symbol size.

binutils/testsuite/
2013-08-19  Tristan Gingold  <gingold@adacore.com>

* binutils-all/nm.exp: Add a test for nm --size-sort
* binutils-all/nm-elf-1.s: New file.
* binutils-all/nm-1.s: New file.

linux-nat.c: no need to block child signals so aggressively.

In http://sourceware.org/ml/gdb-patches/2013-08/msg00174.html , the
issue of child signal handling around ptrace option support discovery
being different between GDB and GDBserver came up.

I recalled adding these block_child_signals calls, and the "We don't
want those ptrace calls to be interrupted" comment, but not exactly
why.  So I looked into it.  My first guess is that I got confused.
The patch that added this
<http://sourceware.org/ml/gdb-patches/2009-04/msg00125.html> rewrote
the linux native async support completely, and the old async support
code had the SIGCHLD handler itself do waitpid, so in places that we'd
want a blocking waitpid, we'd have to have the signal handler blocked.
That was probably the mindset I had at the time.  Anyway, whatever the
case, looks like I was wrong on the need for this blocking.
Given GDBserver doesn't block like this, I investigated why this is
currently needed on GDB but not on GDBserver.

I removed the block_child_signals (and restore) calls, and hacked
linux-nat.c to call linux_test_for_tracefork in a loop, like:

 @@ -534,7 +534,10 @@ static int
  linux_supports_tracefork (int pid)
  {
    if (linux_supports_tracefork_flag == -1)
 -    linux_test_for_tracefork (pid);
 +    {
 +      while (1)
 +       linux_test_for_tracefork (pid);
 +    }
    return linux_supports_tracefork_flag;
  }

Running the resulting GDB, I then saw bad things happening.
Specifically, I'd end up with a bunch of zombies, and eventually, the
machine would refuse to spawn new processes, claming insufficient
resources.

The issue is that linux_test_for_tracefork test forks, and has the
child fork again.  If we don't block SIGCHLD on entry to the function,
the children will inherit SIGCHLD's action/disposition (meaning,
SIGCHLD will be unblocked in the child).  When the first child forks
again a second child, and that child exits, the first child gets a
SIGCHLD.  Now, when we try to wrap up for the whole options test, we
kill the first child, and collect the waitstatus.  Here, when SIGCHLD
isn't blocked, GDB will first see the child reporting a stop with
SIGCHLD.  gdbserver's ptrace options test does a PTRACE_KILL loop at
the end, which catches the SIGCHLD, and retries the kill.  The GDB
version did not do that.  So the GDB version would proceed, leaving
the child zombie (until GDB exists), as nothing collected its final
waitstatus.

So this patch makes the GDB version of linux_test_for_tracefork do the
exact same as the GDBserver version, removes all this unnecessary
blocking throughout, and adds a couple comments at places that do need
it -- namely: places where we'll use sleep with sigsuspend; and
linux_async_pipe, as that destroys the pipe the signal handler
touches.

Tested on x86_64 Fedora 17, sync and async.

gdb/
2013-08-19  Pedro Alves  <palves@redhat.com>

* linux-nat.c (linux_test_for_tracefork)
(linux_test_for_tracesysgood, linux_child_follow_fork)
(lin_lwp_attach_lwp, linux_nat_resume): Don't block child signals.
(linux_nat_wait_1): Extend comment.
(linux_async_pipe): Add comment.

daily update

daily update

src-release: Strip "-cvs" from GDB source dir and tarball.

The nightly snapshots we have been creating in the past did not
include the "-cvs" suffix at the end of the version number. Snapshot
packaging started breaking ever since GDB switched to using BFD's
version number. Things got partially fixed with the previous change
to this file, but the change missed the fact that the "-cvs" suffix
in the tarball name (Eg: gdb-7.6.50-20130816-cvs.tar) is undesirable.
This patch removes it.

ChangeLog:

        * src-release (VER): When using $(TOOL)/common/create-version.sh,
        strip the "-cvs" suffix from the version number if present.

daily update

gold/
* i386.cc (Target_i386_nacl::do_code_fill): New virtual function.
* x86_64.cc (Target_x86_64_nacl::do_code_fill): New virtual function.

* lib/prelink-support.exp (prelink_yes): Flag test as unsupported if
prelink complains about an unhandled DWARF version.

* config/tc-ppc.c (ppc_elf_cons): Allow @l and other reloc
modifiers generally.

* config/tc-ppc.c (ppc_elf_lcomm): Use subsection 1.

Make RL78_PC_REGNUM a pseudo-register in rl78-tdep.c.

daily update

2013-08-15  Muhammad Bilal  <mbilal@codesourcery.com>

PR cli/15841
* top.c (quit_force): Skip writing history file
if input is not from terminal.

* ldexp.c: Add LOG2CEIL() builtin function to linker script language
* ldgram.y: Likewise
* ldlex.l: Likewise
* NEWS: Mention the new feature.
* ld.texinfo: Document the new feature.

* ld-scripts/log2.exp: New: Run the new log2 test.
* ld-scripts/log2.s: Source for the new test.
* ld-scripts/log2.t: Linker script for new test.

daily update

    * config/tc-ppc.c (ppc_comm): Accept optional fourth .lcomm
        argument as alignment.

* boards/fission.exp: Add -fdebug-types-section to debug_flags.

move some static thread state into remote_state

This moves a few static variables from thread-info functions into
remote_state.  Pedro said on irc that these functions implement the
ancient thread-discovery method and that he wouldn't be surprised if
they had rotted; nevertheless it seems safer to me to make them
explicitly per-remote.

This necessitated moving a couple of macros and a typedef earlier in
the file.

* remote.c (struct remote_state) <echo_nextthread, nextthread,
resultthreadlist>: New fields.
(OPAQUETHREADBYTES, threadref, MAXTHREADLISTRESULTS): Move earlier.
(remote_get_threadlist, remote_threadlist_iterator): Use
new fields.  Remove static variables.

move remote_stopped_by_watchpoint_p and remote_watch_data_address into remote_state

This moves the globals remote_stopped_by_watchpoint_p and
remote_watch_data_address into remote_state.

* remote.c (struct remote_state) <remote_stopped_by_watchpoint_p,
remote_watch_data_address>: New fields.
(remote_stopped_by_watchpoint_p, remote_watch_data_address): Remove.
(process_stop_reply, remote_wait_as)
(remote_check_watch_resources, remote_stopped_data_address): Update.