[AArch64][3/6] GAS support TLSLD move/add relocation types

2015-08-19  Jiong Wang  <jiong.wang@arm.com>

bfd/
  * reloc.c (BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_HI12,
  BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0,
  BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0_NC,
  BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1,
  BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1_NC,
  BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G2): New entries.
  * elfnn-aarch64.c (elfNN_aarch64_howto_table): Likewise.
  * bfd-in2.h: Regenerate.
  * libbfd.h: Regenerate.

gas/
  * config/tc-aarch64.c (reloc_table): New relocation modifiers,
  "dtprel_hi12", "dtprel_g0", "dtprel_g0_nc", "dtprel_g1",
  "dtprel_g1_nc", "dtprel_g2".
  (md_apply_fix): Support new relocation types.
  (aarch64_force_relocation): Likewise.
  (process_movw_reloc_info): Likewise.

gas/testsuite/
  * gas/aarch64/reloc-dtprel_g0.s: New testcase.
  * gas/aarch64/reloc-dtprel_g0-ilp32.s: Likewise.
  * gas/aarch64/reloc-dtprel_g0_nc.s: Likewise.
  * gas/aarch64/reloc-dtprel_g0_nc-ilp32.s: Likewise.
  * gas/aarch64/reloc-dtprel_g1.s: Likewise.
  * gas/aarch64/reloc-dtprel_g1-ilp32.s: Likewise.
  * gas/aarch64/reloc-dtprel_g1_nc.s: Likewise.
  * gas/aarch64/reloc-dtprel_g2.s: Likewise.
  * gas/aarch64/reloc-dtprel_hi12.s: Likewise.
  * gas/aarch64/reloc-dtprel_hi12-ilp32.s: Likewise.
  * gas/aarch64/reloc-dtprel_g0.d: New expectation file.
  * gas/aarch64/reloc-dtprel_g0-ilp32.d: Likewise.
  * gas/aarch64/reloc-dtprel_g0_nc.d: Likewise.
  * gas/aarch64/reloc-dtprel_g0_nc-ilp32.d: Likewise.
  * gas/aarch64/reloc-dtprel_g1.d: Likewise.
  * gas/aarch64/reloc-dtprel_g1-ilp32.d: Likewise.
  * gas/aarch64/reloc-dtprel_g1_nc.d: Likewise.
  * gas/aarch64/reloc-dtprel_g2.d: Likewise.
  * gas/aarch64/reloc-dtprel_hi12.d: Likewise.
  * gas/aarch64/reloc-dtprel_hi12-ilp32.d: Likewise.

[AArch64][2/6] LD support BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12_NC

2015-08-19  Jiong Wang  <jiong.wang@arm.com>

bfd/
  * elfnn-aarch64.c (IS_AARCH64_TLS_RELOC): Recognize
  BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12_NC.
  (aarch64_reloc_got_type): Likewise.
  (elfNN_aarch64_final_link_relocate): Likewise.
  (elfNN_aarch64_relocate_section): Likewise.
  * elfxx-aarch64.c (_bfd_aarch64_elf_put_addend): Likewise.
  (_bfd_aarch64_elf_resolve_relocation): Likewise.

ld/testsuite/
  * ld-aarch64/emit-relocs-530.s: New testcase.
  * ld-aarch64/emit-relocs-92.s: Likewise.
  * ld-aarch64/emit-relocs-530.d: New expectation file.
  * ld-aarch64/emit-relocs-92.d: Likewise.
  * ld-aarch64/aarch64-elf.exp: Run new testcases.

[AArch64][1/6] GAS support BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12_NC

2015-08-19  Jiong Wang  <jiong.wang@arm.com>

bfd/
  * reloc.c (BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12_NC): New entry.
  * bfd-in2.h: Regenerate.
  * libbfd.h: Regenerate.
  * elfnn-aarch64.c (elfNN_aarch64_howto_table): New entry for
  BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12_NC.

gas/
  * config/tc-aarch64.c (reloc_table): New relocation modifiers.
  (md_apply_fix): Support BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12_NC.
  (aarch64_force_relocation): Likewise.

gas/testsuite/
  * gas/aarch64/reloc-dtprel_lo12_nc.s: New testcase.
  * gas/aarch64/reloc-dtprel_lo12_nc-ilp32.s: Likewise.
  * gas/aarch64/reloc-dtprel_lo12_nc.d: New expectation file.
  * gas/aarch64/reloc-dtprel_lo12_nc-ilp32.d: Likewise.

Prelimit number of bytes to read in "vFile:pread:"

While handling "vFile:pread:" packets, gdbserver would read the
number of bytes requested regardless of whether this would fit
into the reply packet.  gdbserver would then return a packet's
worth of data and discard the remainder.  When accessing large
binaries GDB (via BFD) routinely makes large "vFile:pread:"
requests, resulting in gdbserver allocating large unnecessary
buffers and reading some portions of the file many times over.

This commit causes gdbserver to limit the number of bytes to be
read to a sensible maximum prior to allocating buffers and reading
data.

gdb/gdbserver/ChangeLog:

* hostio.c (handle_pread): Do not attempt to read more data
than hostio_reply_with_data can fit in a packet.

Remove link_info.pic

Adding type_pie to output_type allows us to remove link_info.pic and
with some reordering of the enum, produces better code.

include/
* bfdlink.h (enum output_type): Delete type_executable, add type_pde
and type_pie.  Reorder.
(struct bfd_link_info): Delete pic field.
(bfd_link_executable, bfd_link_pde, bfd_link_pie, bfd_link_pic): Adjust.
ld/
* emultempl/aix.em: Don't set link_info.pic.
* emultempl/pe.em: Likewise.
* emultempl/pep.em: Likewise.
* emultempl/sunos.em: Likewise.
* lexsup.c (parse_args): Likewise.  Set type_pie for -pie.
* plugin.c (set_tv_header <LDPT_LINKER_OUTPUT>): Simplify.

Add bfd_link_pde, and simplify some tests of link_info.type

include/
* bfdlink.h (bfd_link_pde): Define.
bfd/
* elf-s390-common.c: Simplify expressions using
bfd_linke_executable, bfd_link_pie and bfd_link_pic.
* elf32-arm.c: Likewise.
* elf32-bfin.c: Likewise.
* elf32-frv.c: Likewise.
* elf32-m68k.c: Likewise.
* elf32-nios2.c: Likewise.
* elf32-ppc.c: Likewise.
* elf32-s390.c: Likewise.
* elf32-sh.c: Likewise.
* elf64-alpha.c: Likewise.
* elf64-ppc.c: Likewise.
* elf64-s390.c: Likewise.
* elflink.c: Likewise.

Fix symbol versioning problems in PR 18703.

If a symbol is defined with ".symver foo,foo@VER", the assembler
creates two symbols in the object: one unversioned, and one with
the (non-default) version "VER". If foo is listed in a version
script, gold would then make the first of those symbols the
default version, and would ignore the second symbol as a
duplicate, without making it a non-default version. While this is
arguably reasonable behavior, it doesn't match Gnu ld behavior,
so this patch fixes that by allowing the second definition to
override the first by resetting the "default version" indication.

Several test cases from the Gnu ld testsuite also exposed another
related problem, where a symbol defined with ".symver foo,foo@",
placed into a shared library, is not handled properly by gold.
This patch also fixes that case, binding the symbol to the base
version.

gold/
PR gold/18703
* dynobj.cc (Versions::record_version): Handle symbol defined with
base version.
(Versions::symbol_section_contents): Likewise.
* symtab.h (Symbol::set_is_not_default): New class method.
(Symbol_table::resolve): Add is_default_version parameter.
(Symbol_table::should_override): Likewise.
* resolve.cc (Symbol_table::resolve): Add is_default_version parameter,
and pass to should_override. Adjust all callers and explicit
instantiations.
(Symbol_table::should_override): Add is_default_value parameter;
allow default version in a dynamic object to override existing
definition from same object.
* symtab.cc (Symbol_table::add_from_object): Handle case where same
symbol is defined as unversioned and non-default version in the same
object.
* testsuite/Makefile.am (ver_test_13): New test case.
* testsuite/Makefile.in: Regenerate.
* testsuite/ver_test_4.cc: Add test for symbol with base version.
* testsuite/ver_test_4.sh: Likewise.
* testsuite/ver_test_13.c: New source file.
* testsuite/ver_test_13.script: New version script.
* testsuite/ver_test_13.sh: New test case.

Automatic date update in version.in

gdbserver/linux-aarch32-low: build failure when NT_ARM_VFP not defined

On some older versions of GNU/Linux, gdbserver now fails to build
due to an undefined reference to NT_ARM_VFP. Same issue on Android,
where this macros is undefined until Android API level 21 (Android
5.0 "Lollipop").

This patch modifies linux-aarch32-low.c to define that macros when
not already defined.

gdb/gdbserver/ChangeLog:

        * linux-aarch32-low.c (NT_ARM_VFP): Define if not already defined.

PR mi/18833 gdb.execute ("set param value", to_string=True) will crash gdb if using MI

gdb/ChangeLog:

* cli/cli-logging.c (pop_output_files): Don't restore redirection
if MI-like.
* mi/mi-out.c: #include "vec.h".
(ui_filep): New type.
(DEV_VEC_P (ui_filep)): New type.
(struct ui_out_data) <buffer, original_buffer>: Delete.
(struct ui_out_data) <streams>: New member.
(mi_ui_out_impl): Add data_destroy field.
(mi_field_string, mi_field_fmt): Update.
(mi_flush, mi_redirect, field_separator): Update.
(mi_open, mi_close): Update.
(mi_out_buffered, mi_out_rewind, mi_out_put): Update.
(mi_out_data_ctor, mi_out_data_dtor): New functions.
(mi_out_new): Call mi_out_data_ctor.

testsuite/gdb/ChangeLog:

* lib/gdb.exp (skip_python_tests_prompt): Renamed from
skip_python_tests.  New arg prompt_regexp.
(skip_python_tests): New function.
* lib/mi-support.exp (mi_skip_python_tests): New function.
* gdb.python/py-mi-objfile-gdb.py: New file.
* gdb.python/py-mi-objfile.c: New file.
* gdb.python/py-mi-objfile.exp: New file.

Add another test for PR ld/18841

PR ld/18841
* ld-ifunc/ifunc.exp: Add another test for PR ld/18841.
* ld-ifunc/pr18841c.c: New file.

Fix mis-parsing of hex register numbers in 'T' stop replies.

2015-08-18  Sandra Loosemore  <sandra@codesourcery.com>

gdb/
* remote.c (strprefix): New.
(remote_parse_stop_reply): Use strprefix instead of strncmp
to ensure exact match of keyword.

Return reloc_class_ifunc for reloc against IFUNC

elf_XXX_reloc_type_class should return reloc_class_ifunc for relocation
against STT_GNU_IFUNC symbol.

bfd/

PR ld/18841
* elf-bfd.h (elf_link_hash_table): Add dynsym.
* elf32-i386.c (elf_i386_reloc_type_class): Return
reloc_class_ifunc for relocation against STT_GNU_IFUNC symbol.
* elf64-x86-64.c (elf_x86_64_reloc_type_class): Likewise.
* elflink.c (_bfd_elf_link_create_dynamic_sections): Set dynsym.
(bfd_elf_size_dynsym_hash_dynstr): Use dynsym.
(elf_final_link_info): Remove dynsym_sec.
(elf_link_output_extsym): Replace dynsym_sec with dynsym.
(bfd_elf_final_link): Remove reference to dynsym_sec.  Replace
dynsym_sec with dynsym.

ld/testsuite/

PR ld/18841
* ld-ifunc/ifunc.exp: Add a test for PR ld/18841.
* ld-ifunc/pr18841.out: New file.
* ld-ifunc/pr18841a.c: Likewise.
* ld-ifunc/pr18841b.c: Likewise.

gdb/doc: Fix build of 'info' manual.

In commit 18989b3c5642e2ba533e02737797dcf06134229b I broke the creation
of gdb's info manual; I added a new section without adding a suitable
menu entry.

This commit adds the missing menu entry and fixes the build of gdb's
info manual.

gdb/doc/ChangeLog:

* gdb.texinfo (GDB Files): Add 'File Caching' menu entry.

[AArch64] Cleanup TLS relocation types which don't go through GOT table

This patch done two types of cleanup:

  * in aarch64_reloc_got_type and elfNN_aarch64_relocate_section

    We don't need those redundant "case" check, as they can be merged
    with the "default" which just "break".

  * in elfNN_aarch64_gc_sweep_hook and elfNN_aarch64_check_relocs

    All TLS local executable relocations and some local dynamic
    relocations (those calculate module offset) actually don't need GOT
    entry, so remove them from GOT entry counting.

2015-08-18  Jiong Wang  <jiong.wang@arm.com>

bfd/
  * elfnn-aarch64.c (aarch64_reloc_got_type): Delete useless check.
  (elfNN_aarch64_relocate_section): Likewise.
  (elfNN_aarch64_gc_sweep_hook): Likewise.
  (elfNN_aarch64_check_relocs): Likewise.

gdb: Add debug tracing for bfd cache activity.

This patch adds a new debug flag bfd-cache, which when set to non-zero
produces debugging log messages relating to gdb's bfd cache.

gdb/ChangeLog:

* gdb_bfd.c (debug_bfd_cache): New variable.
(show_bfd_cache_debug): New function.
(gdb_bfd_open): Add debug logging.
(gdb_bfd_ref): Likewise.
(gdb_bfd_unref): Likewise.
(_initialize_gdb_bfd): Add new set/show command.
* NEWS: Mention new command.

gdb/doc/ChangeLog:

* gdb.texinfo (File Caching): Document "set/show debug bfd-cache".

gdb: New maintenance command to disable bfd sharing.

In some rare maintainer cases it is desirable to be able to disable bfd
sharing.  This patch adds new commands maintenance set/show commands for
bfd-sharing, allowing gdb's bfd cache to be turned off.

gdb/ChangeLog:

* gdb_bfd.c (bfd_sharing): New variable.
(show_bfd_sharing): New function.
(gdb_bfd_open): Check bfd_sharing variable.
(_initialize_gdb_bfd): Add new set/show command.
* NEWS: Mention new command.

gdb/doc/ChangeLog:

* gdb.texinfo (Maintenance Commands): Move documentation of "main
info bfds" to...
(File Caching): A New section.  Outline bfd caching, and add new
description for "main set/show bfd-sharing".

gdb: Improve cache matching criteria for the bfd cache.

Within gdb open bfd objects are reused where possible if an attempt is
made to reopen a file that is already being debugged.  To spot if the on
disc file has changed gdb currently examines the mtime of the file and
compares it to the mtime of the open bfd in the cache.

A problem exists when the on disc file is being rapidly regenerated, as
happens, for example, with automated testing.  In some cases the file is
generated so quickly that the mtime appears not to change, while the on
disc file has changed.

This patch extends the bfd cache to also hold the file size of the file,
the inode of the file, and the device id of the file; gdb can then
compare filename, file size, mtime, inode, and device id to determine if
an existing bfd object can be reused.

gdb/ChangeLog:

* gdb_bfd.c (struct gdb_bfd_data): Add size, inode, and device id
field.
(struct gdb_bfd_cache_search): Likewise.
(eq_bfd): Compare the size, inode, and device id fields.
(gdb_bfd_open): Initialise the size, inode, and device id fields.
(gdb_bfd_ref): Likewise.
(gdb_bfd_unref): Likewise.

Add output_type to bfd_link_info

The "shared" field in bfd_link_info is set for both DSO and and PIE.
There are separate fields for executable and relocatable outputs.  This
patch adds an "output_type" field:

enum output_type
{
  type_unknown = 0,
  type_executable,
  type_dll,
  type_relocatable
};

and a "pic" field to bfd_link_info to replace shared, executable and
relocatable fields so that we can use the "output_type" field to check
for output type and the "pic" field check if output is PIC.  Macros,
bfd_link_executable, bfd_link_dll, bfd_link_relocatable, bfd_link_pic
and bfd_link_pie, are provided to check for output features.

bfd/

* bfd/aoutx.h: Replace shared, executable, relocatable and pie
fields with bfd_link_executable, bfd_link_dll,
bfd_link_relocatable, bfd_link_pic and bfd_link_pie.
* bfd/bout.c: Likewise.
* bfd/coff-alpha.c: Likewise.
* bfd/coff-arm.c: Likewise.
* bfd/coff-i386.c: Likewise.
* bfd/coff-i960.c: Likewise.
* bfd/coff-m68k.c: Likewise.
* bfd/coff-mcore.c: Likewise.
* bfd/coff-mips.c: Likewise.
* bfd/coff-ppc.c: Likewise.
* bfd/coff-rs6000.c: Likewise.
* bfd/coff-sh.c: Likewise.
* bfd/coff-tic80.c: Likewise.
* bfd/coff-x86_64.c: Likewise.
* bfd/coff64-rs6000.c: Likewise.
* bfd/coffgen.c: Likewise.
* bfd/cofflink.c: Likewise.
* bfd/ecoff.c: Likewise.
* bfd/ecofflink.c: Likewise.
* bfd/elf-bfd.h: Likewise.
* bfd/elf-eh-frame.c: Likewise.
* bfd/elf-ifunc.c: Likewise.
* bfd/elf-m10200.c: Likewise.
* bfd/elf-m10300.c: Likewise.
* bfd/elf-s390-common.c: Likewise.
* bfd/elf-vxworks.c: Likewise.
* bfd/elf.c: Likewise.
* bfd/elf32-arm.c: Likewise.
* bfd/elf32-avr.c: Likewise.
* bfd/elf32-bfin.c: Likewise.
* bfd/elf32-cr16.c: Likewise.
* bfd/elf32-cr16c.c: Likewise.
* bfd/elf32-cris.c: Likewise.
* bfd/elf32-crx.c: Likewise.
* bfd/elf32-d10v.c: Likewise.
* bfd/elf32-dlx.c: Likewise.
* bfd/elf32-epiphany.c: Likewise.
* bfd/elf32-fr30.c: Likewise.
* bfd/elf32-frv.c: Likewise.
* bfd/elf32-ft32.c: Likewise.
* bfd/elf32-h8300.c: Likewise.
* bfd/elf32-hppa.c: Likewise.
* bfd/elf32-i370.c: Likewise.
* bfd/elf32-i386.c: Likewise.
* bfd/elf32-i860.c: Likewise.
* bfd/elf32-ip2k.c: Likewise.
* bfd/elf32-iq2000.c: Likewise.
* bfd/elf32-lm32.c: Likewise.
* bfd/elf32-m32c.c: Likewise.
* bfd/elf32-m32r.c: Likewise.
* bfd/elf32-m68hc11.c: Likewise.
* bfd/elf32-m68hc1x.c: Likewise.
* bfd/elf32-m68k.c: Likewise.
* bfd/elf32-mcore.c: Likewise.
* bfd/elf32-mep.c: Likewise.
* bfd/elf32-metag.c: Likewise.
* bfd/elf32-microblaze.c: Likewise.
* bfd/elf32-moxie.c: Likewise.
* bfd/elf32-msp430.c: Likewise.
* bfd/elf32-mt.c: Likewise.
* bfd/elf32-nds32.c: Likewise.
* bfd/elf32-nios2.c: Likewise.
* bfd/elf32-or1k.c: Likewise.
* bfd/elf32-ppc.c: Likewise.
* bfd/elf32-rl78.c: Likewise.
* bfd/elf32-rx.c: Likewise.
* bfd/elf32-s390.c: Likewise.
* bfd/elf32-score.c: Likewise.
* bfd/elf32-score7.c: Likewise.
* bfd/elf32-sh-symbian.c: Likewise.
* bfd/elf32-sh.c: Likewise.
* bfd/elf32-sh64.c: Likewise.
* bfd/elf32-spu.c: Likewise.
* bfd/elf32-tic6x.c: Likewise.
* bfd/elf32-tilepro.c: Likewise.
* bfd/elf32-v850.c: Likewise.
* bfd/elf32-vax.c: Likewise.
* bfd/elf32-visium.c: Likewise.
* bfd/elf32-xc16x.c: Likewise.
* bfd/elf32-xstormy16.c: Likewise.
* bfd/elf32-xtensa.c: Likewise.
* bfd/elf64-alpha.c: Likewise.
* bfd/elf64-hppa.c: Likewise.
* bfd/elf64-ia64-vms.c: Likewise.
* bfd/elf64-mmix.c: Likewise.
* bfd/elf64-ppc.c: Likewise.
* bfd/elf64-s390.c: Likewise.
* bfd/elf64-sh64.c: Likewise.
* bfd/elf64-x86-64.c: Likewise.
* bfd/elflink.c: Likewise.
* bfd/elfnn-aarch64.c: Likewise.
* bfd/elfnn-ia64.c: Likewise.
* bfd/elfxx-mips.c: Likewise.
* bfd/elfxx-sparc.c: Likewise.
* bfd/elfxx-tilegx.c: Likewise.
* bfd/i386linux.c: Likewise.
* bfd/linker.c: Likewise.
* bfd/m68klinux.c: Likewise.
* bfd/pdp11.c: Likewise.
* bfd/pe-mips.c: Likewise.
* bfd/peXXigen.c: Likewise.
* bfd/reloc.c: Likewise.
* bfd/reloc16.c: Likewise.
* bfd/sparclinux.c: Likewise.
* bfd/sunos.c: Likewise.
* bfd/vms-alpha.c: Likewise.
* bfd/xcofflink.c: Likewise.

include/

* include/bfdlink.h (output_type): New enum.
(bfd_link_executable): New macro.
(bfd_link_dll): Likewise.
(bfd_link_relocatable): Likewise.
(bfd_link_pic): Likewise.
(bfd_link_pie): Likewise.
(bfd_link_info): Remove shared, executable, pie and relocatable.
Add output_type and pic.

ld/

* ld/ldctor.c: Replace shared, executable, relocatable and pie
fields with bfd_link_executable, bfd_link_dll,
bfd_link_relocatable, bfd_link_pic and bfd_link_pie.
* ld/ldemul.c: Likewise.
* ld/ldfile.c: Likewise.
* ld/ldlang.c: Likewise.
* ld/ldmain.c: Likewise.
* ld/ldwrite.c: Likewise.
* ld/lexsup.c: Likewise.
* ld/pe-dll.c: Likewise.
* ld/plugin.c: Likewise.
* ld/emultempl/aarch64elf.em: Likewise.
* ld/emultempl/aix.em: Likewise.
* ld/emultempl/alphaelf.em: Likewise.
* ld/emultempl/armcoff.em: Likewise.
* ld/emultempl/armelf.em: Likewise.
* ld/emultempl/avrelf.em: Likewise.
* ld/emultempl/beos.em: Likewise.
* ld/emultempl/cr16elf.em: Likewise.
* ld/emultempl/elf-generic.em: Likewise.
* ld/emultempl/elf32.em: Likewise.
* ld/emultempl/genelf.em: Likewise.
* ld/emultempl/generic.em: Likewise.
* ld/emultempl/gld960.em: Likewise.
* ld/emultempl/gld960c.em: Likewise.
* ld/emultempl/hppaelf.em: Likewise.
* ld/emultempl/irix.em: Likewise.
* ld/emultempl/linux.em: Likewise.
* ld/emultempl/lnk960.em: Likewise.
* ld/emultempl/m68hc1xelf.em: Likewise.
* ld/emultempl/m68kcoff.em: Likewise.
* ld/emultempl/m68kelf.em: Likewise.
* ld/emultempl/metagelf.em: Likewise.
* ld/emultempl/mipself.em: Likewise.
* ld/emultempl/mmo.em: Likewise.
* ld/emultempl/msp430.em: Likewise.
* ld/emultempl/nds32elf.em: Likewise.
* ld/emultempl/needrelax.em: Likewise.
* ld/emultempl/nios2elf.em: Likewise.
* ld/emultempl/pe.em: Likewise.
* ld/emultempl/pep.em: Likewise.
* ld/emultempl/ppc32elf.em: Likewise.
* ld/emultempl/ppc64elf.em: Likewise.
* ld/emultempl/sh64elf.em: Likewise.
* ld/emultempl/solaris2.em: Likewise.
* ld/emultempl/spuelf.em: Likewise.
* ld/emultempl/sunos.em: Likewise.
* ld/emultempl/tic6xdsbt.em: Likewise.
* ld/emultempl/ticoff.em: Likewise.
* ld/emultempl/v850elf.em: Likewise.
* ld/emultempl/vms.em: Likewise.
* ld/emultempl/vxworks.em: Likewise.

x86/Linux: disable all-stop on top of non-stop

Markus reported that ASNS breaks target record-btrace.  In particular,
the gdb.btrace/multi-thread-step.exp test fails (both with BTS and PT
tracing) with a crash in py-inferior.c:

 Program received signal SIGSEGV, Segmentation fault.

 0x00000000006aa40d in add_thread_object (tp=0x27d32d0)

     at /users/mmetzger/team/gdb/git/gdb/python/py-inferior.c:337

 337       entry->next = inf_obj->threads;

My machine doesn't support BTS nor PT, so I missed this...

Disabling ASNS temporarily on x86 until this is addressed.

Tested on x86_64 Fedora 20.

gdb/ChangeLog:
2015-08-18  Pedro Alves  <palves@redhat.com>

* linux-nat.c (linux_nat_always_non_stop_p): If the linux_ops
target implements to_always_non_stop_p, call it.
* x86-linux-nat.c (x86_linux_always_non_stop_p): New function.
(x86_linux_create_target): Install it as to_always_non_stop_p
method.

Use $SED in bfd Makefile

PR 18667
* Makefile.am: Use $(SED) in place of sed throughout.
* Makefile.in: Regenerate.

PPC64: Allow .TOC. in linker script to override backend calculated value

bfd/
* elf64-ppc.c (ppc64_elf_func_desc_adjust): Don't redefine .TOC.
if already defined, and set linker_def.
(ppc64_elf_set_toc): Use .TOC. value if defined other than by
the backend.
ld/
* ldexp.c (exp_fold_tree_1): Clear linker_def on symbol assignment.

Automatic date update in version.in

ui-out.c (default_ui_out_impl): Add comment.

gdb/ChangeLog:

* ui-out.c (default_ui_out_impl): Add comment.

[D] Implement looking up members of D enums.

In D, all named enums are explicitly scoped (the C++ equivalent of enum class)
so they should be handled as such in the language-specific symbol lookup
routines.  However so as to support D compilers that don't emit enums as
DW_AT_enum_class, need to make sure that appropriate checks for
TYPE_DECLARED_CLASS are done.

gdb/ChangeLog

* d-exp.y (type_aggregate_p): New function.
(PrimaryExpression : TypeExp '.' IdentifierExp): Use it.
(classify_inner_name): Likewise.
* d-namespace.c (d_lookup_nested_symbol): Handle TYPE_CODE_ENUM.

Move strace -m/explicit location test to strace.exp

One of the build slaves shows this error running explicit.exp:

(gdb) strace -m gdbfoobarbaz
Remote failure reply: E.In-process agent library not loaded in process.
Fast and static tracepoints unavailable.
(gdb) FAIL: gdb.linespec/explicit.exp: strace -m gdbfoobarbaz

There are two big problems with this test:
1) The expected output is actually not what the test is meant to test for.
2) This test should really only run where it is supported.

This is most easily fixed by moving the test to gdb.trace/strace.exp.

gdb/testsuite/ChangeLog

* gdb.linespec/explicit.exp: Move strace test from here ...
* gdb.trace/strace.exp: ... to here.

Regen binutils/configure

Looks like previous regen wasn't using current sources.

* configure: Regenerate.

Trailing space in opcodes/ generated files

HJ recently removed trailing space in binutils files, but unfortunately
they return when regenerating files in opcodes.  This fixes the regen
process.

* cgen.sh: Trim trailing space from cgen output.
* ia64-gen.c (print_dependency_table): Don't generate trailing space.
(print_dis_table): Likewise.
* opc2c.c (dump_lines): Likewise.
(orig_filename): Warning fix.
* ia64-asmtab.c: Regenerate.

Automatic date update in version.in

Rationalize ARM .align

* gas/config/tc-arm.c (s_align): Delete.
(md_pseudo_table): Use s_align_ptwo for "align".
* gas/config/tc-arm.h (TC_ALIGN_ZERO_IS_DEFAULT): Define.
* read.c (s_align): Modify for TC_ALIGN_ZERO_IS_DEFAULT.

psymtab.c (add_psymbol_to_bcache): Remove "val" arg.

gdb/ChangeLog:

* psymtab.c (add_psymbol_to_bcache): Remove "val" arg.  All callers
updated.
(add_psymbol_to_list): Ditto.

Automatic date update in version.in

Add end_psymtab_common, have all debug info readers call it.

gdb/ChangeLog:

* dbxread.c (dbx_end_psymtab): Renamed from end_psymtab.  All callers
updated.  Call end_psymtab_common.
* dwarf2read.c (process_psymtab_comp_unit_reader): Call
end_psymtab_common.
(build_type_psymtabs_reader): Ditto.
* psympriv.h (sort_pst_symbols): Delete.
(end_psymtab_common): Declare.
* psymtab.c (sort_pst_symbols): Make static.
(end_psymtab_common): New function.
* xcoffread.c (xcoff_end_psymtab): Call end_psymtab_common.

Use macros for some enum bit field sizes.

gdb/ChangeLog:

* defs.h (LANGUAGE_BITS): Define.
* psympriv.h (partial_symbol) <domain>: Use SYMBOL_DOMAIN_BITS.
(partial_symbol) <aclass>: Use SYMBOL_ACLASS_BITS.
* symtab.h (general_symbol_info> <language>: Usage LANGUAGE_BITS.
(minimal_symbol_type): Add nr_minsym_types.
(MINSYM_TYPE_BITS): Define.
(minimal_symbol) <type>: Use MINSYM_TYPE_BITS.
(domain_enum_tag): Add NR_DOMAINS.
(SYMBOL_DOMAIN_BITS): Change from 4 to 3.
(SYMBOL_ACLASS_BITS): Define from 6 to 5.

objfiles.h,psympriv.h,psymtab.c: Whitespace.

gdb/ChangeLog:

* objfiles.h: Whitespace cleanup.
* psympriv.h: Whitespace cleanup.
* psymtab.c: Whitespace/coding convention cleanup.

Fix invoking "[kill|detach] inferiors" on inferiors that are not running

Invoking either of the above commands on an inferior that's not running
triggers the following assert failure:

  .../binutils-gdb/gdb/thread.c:514: internal-error: any_thread_of_process: Assertion `pid != 0' failed.

The fix is straightforward.  This patch also adds a test to check the
basic functionality of these commands, along with testing this fix in
particular.  Tested on x86_64 Linux.

gdb/ChangeLog:

* inferior.c (detach_inferior_command): Don't call
any_thread_of_process when pid is 0.
(kill_inferior_command): Likewise.

gdb/testsuite/ChangeLog:

* gdb.base/kill-detach-inferiors-cmd.exp: New test file.
* gdb.base/kill-detach-inferiors-cmd.c: New test file.

perftest/utils.py (select_file): Kill any existing inferior before selecting a new file.

gdb/testsuite/ChangeLog:

* gdb.perf/lib/perftest/utils.py (select_file): Kill any existing
inferior before selecting a new file.

New /s modifier for the disassemble command.

The "source centric" /m option to the disassemble command is often
unhelpful, e.g., in the presence of optimized code.
This patch adds a /s modifier that is better.
For one, /m only prints instructions from the originating source file,
leaving out instructions from e.g., inlined functions from other files.

gdb/ChangeLog:

PR gdb/11833
* NEWS: Document new /s modifier for the disassemble command.
* cli/cli-cmds.c (disassemble_command): Add support for /s.
(_initialize_cli_cmds): Update online docs of disassemble command.
* disasm.c: #include "source.h".
(struct deprecated_dis_line_entry): Renamed from dis_line_entry.
All uses updated.
(dis_line_entry): New struct.
(hash_dis_line_entry, eq_dis_line_entry): New functions.
(allocate_dis_line_table): New functions.
(maybe_add_dis_line_entry, line_has_code_p): New functions.
(dump_insns): New arg end_pc.  All callers updated.
(do_mixed_source_and_assembly_deprecated): Renamed from
do_mixed_source_and_assembly.  All callers updated.
(do_mixed_source_and_assembly): New function.
(gdb_disassembly): Handle /s (DISASSEMBLY_SOURCE).
* disasm.h (DISASSEMBLY_SOURCE_DEPRECATED): Renamed from
DISASSEMBLY_SOURCE.  All uses updated.
(DISASSEMBLY_SOURCE): New macro.
* mi/mi-cmd-disas.c (mi_cmd_disassemble): New modes 4,5.

gdb/doc/ChangeLog:

* gdb.texinfo (Machine Code): Update docs for mixed source/assembly
disassembly.
(GDB/MI Data Manipulation): Update docs for new disassembly modes.

gdb/testsuite/ChangeLog:

* gdb.mi/mi-disassemble.exp: Update.
* gdb.base/disasm-optim.S: New file.
* gdb.base/disasm-optim.c: New file.
* gdb.base/disasm-optim.h: New file.
* gdb.base/disasm-optim.exp: New file.

Rename `typename' in d-exp.y to avoid C++ reserved word

A recent patch introduced a variable named `typename' into d-exp.y,
and one of the --enable-with-cxx build slaves consequently failed to compile
this.  This patch simply adds an underscore into the name to avoid the
reserved word.

gdb/ChangeLog

* d-exp.y (PrimaryExpression : TypeExp '.' IdentifierExp): Rename
`typename' to `type_name' to avoid C++ reserved word.

Automatic date update in version.in

Rename location accessor macro parameters to silence ARI

The locations patch I recently committed contains macro definitions
such as:

This causes an ARI error to be emitted by the server ("Do not use PTR, ISO C
90 implies `void *'").  While this ARI error is bogus in this context,
it is just easiest to squash the error completely by renaming the macro
parameters.

gdb/ChangeLog

* location.c (EL_TYPE, EL_LINESPEC, EL_PROBE, EL_ADDRESS)
(EL_EXPLICIT, EL_STRING): Change macro parameter to "P" to
silence ARI errors.

Add missing ChangeLog entry for previous commit.

mi_make_breakpoint: add "evaluated-by" option

For some time now, GDB has permitted target-side evaluation of
breakpoint conditions.  On targets that support this feature, GDB
may output an "evaluated-by" field into the breakpoint reply.

This patch adds handling for this option, and outputs a default
pattern to optionally recognize (and ignore) this pattern in the
reply.

gdb/testsuite/ChangeLog

* lib/mi-support.exp (mi_make_breakpoint): Add option/handling for
"evaluated-by".

Fix ARI warnings in d-exp.y

This fixes four ARI warnings found in d-exp.y.

This is comprised of three uses of the && or || at the end of a line, and one
use of sprintf.

gdb/ChangeLog

* d-exp.y (PrimaryExpression : TypeExp '.' IdentifierExp): Use
xstrprintf instead of malloc and sprintf.
(PrimaryExpression : IdentifierExp): Avoid operator at end of line.
(lex_one_token): Likewise.

Add support for DT_MIPS_RLD_MAP_REL.

This tag allows debugging of MIPS position independent executables
and provides access to shared library information.

gdb/gdbserver/

* linux-low.c (get_r_debug): Handle DT_MIPS_RLD_MAP_REL.

gdb/

* solib-svr4.c (read_program_header): Add base_addr argument to
report the runtime address of the segment.
(find_program_interpreter): Update read_program_header call to pass
a NULL pointer for the new argument.
(scan_dyntag): Add ptr_addr argument to report the runtime address
of the tag payload.
(scan_dyntag_auxv): Likewise and use thew new base_addr argument of
read_program_header to get the base address of the dynamic segment.
(elf_locate_base): Update uses of scan_dyntag, scan_dyntag_auxv and
read_program_header.
(elf_locate_base): Scan for and handle DT_MIPS_RLD_MAP_REL.

Add myself to gdb MAINTAINERS

gdb/
* MAINTAINERS (Write After Approval): Add Matthew Fortune.

Revert "Fix encoding or OpenRisk1000 PC relative relocations."

This reverts commit dbac553d28887561e3f154654ec8e70195d89943.

PR ld/18759
* elf32-or1k.c: Revert 2015-08-11 change.

Automatic date update in version.in

[D] Move classification of symbols from the grammar to the lexer.

This makes it so that alternating '.' and identifier tokens are resolved to
symbols as early as possible, which should all the addition of D properties -
such as EXP.sizeof and EXP.typeof - without the shift/reduce conflicts that
would occur in the current parsing strategy.

gdb/ChangeLog

* d-exp.y (%union): Add voidval.
(%token): Add UNKNOWN_NAME as a token to represent an unclassified
name in the lexing stage.
(PostfixExpression): Move symbol completion handling in grammar here
from PrimaryExpression.
(PrimaryExpression): Move routines to handle resolving identifier
tokens in the grammar here from push_expression_name.
(IdentifierExp): Remove the handling of alternating '.' and identifier
tokens.
(TypeExp): Allow TypeExp to be wrapped in parenthesis in the grammar.
(BasicType): Remove C-style typename rules.
(d_type_from_name, d_module_from_name, push_variable)
(push_fieldnames, push_type_name, push_module_name)
(push_expression_name): Remove.
(lex_one_token): Rename from yylex.  Replace pstate with par_state.
(token_and_value): New type.
(token_fifo, popping, name_obstack): New globals.
(classify_name): New function.
(classify_inner_name): Likewise.
(yylex): Likewise.
(d_parse): Initialize token_fifo, popping and name_obstack.

[D] Support looking up symbols in the current and imported modules.

In D, there is the notion of modules, and importing from one to the other,
whether it is a basic, selective or renamed import declaration.

module A;
import X;
void foo() {
  import Y : bar;
}

If the compiler emits DW_TAG_imported_declaration at the appropriate locations,
then we can make use of what gdb stores in using_direct when performing
nonlocal symbol lookups.

gdb/ChangeLog

* Makefile.in (SFILES): Add d-namespace.c.
(COMMON_OBS): Add d-namespace.o.
* d-lang.c (d_language_defn): Use d_lookup_symbol_nonlocal as the
la_lookup_symbol_nonlocal callback function pointer.
* d-lang.h (d_lookup_symbol_nonlocal): New declaration.
(d_lookup_nested_symbol): New declaration.
* d-namespace.c: New file.

gdb.base/dso2dso.exp: Improve testcase documentation.

gdb/testsuite/ChangeLog:

        * gdb.base/dso2dso.exp: Improve the testcase's documentation.

Fix Python frame unwinder issue caught by Valgrind

Valgrind shows:

 ==17026== Invalid write of size 8
 ==17026==    at 0x54AA80: pending_frame_invalidate (py-unwind.c:477)
 ==17026==    by 0x5AB934: do_my_cleanups (cleanups.c:155)
 ==17026==    by 0x5AB9AF: do_cleanups (cleanups.c:177)
 ==17026==    by 0x54B009: pyuw_sniffer (py-unwind.c:606)
 ==17026==    by 0x755DAC: frame_unwind_try_unwinder (frame-unwind.c:105)
 ==17026==    by 0x755EEE: frame_unwind_find_by_frame (frame-unwind.c:160)
 ==17026==    by 0x750FFA: compute_frame_id (frame.c:454)
 ==17026==    by 0x753BD6: get_prev_frame_if_no_cycle (frame.c:1781)
 ==17026==    by 0x754292: get_prev_frame_always_1 (frame.c:1955)
 ==17026==    by 0x7542DA: get_prev_frame_always (frame.c:1971)
 ==17026==    by 0x7547BE: get_prev_frame (frame.c:2213)
 ==17026==    by 0x7532BD: unwind_to_current_frame (frame.c:1450)
 ==17026==  Address 0xd27b570 is 16 bytes inside a block of size 32 free'd
 ==17026==    at 0x4A07577: free (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
 ==17026==    by 0x54B276: gdb_Py_DECREF (python-internal.h:185)
 ==17026==    by 0x54B298: py_decref (py-utils.c:34)
 ==17026==    by 0x5AB934: do_my_cleanups (cleanups.c:155)
 ==17026==    by 0x5AB9AF: do_cleanups (cleanups.c:177)
 ==17026==    by 0x54B009: pyuw_sniffer (py-unwind.c:606)
 ==17026==    by 0x755DAC: frame_unwind_try_unwinder (frame-unwind.c:105)
 ==17026==    by 0x755EEE: frame_unwind_find_by_frame (frame-unwind.c:160)
 ==17026==    by 0x750FFA: compute_frame_id (frame.c:454)
 ==17026==    by 0x753BD6: get_prev_frame_if_no_cycle (frame.c:1781)
 ==17026==    by 0x754292: get_prev_frame_always_1 (frame.c:1955)
 ==17026==    by 0x7542DA: get_prev_frame_always (frame.c:1971)
 ==17026==

Simply invalidate the object before releasing it.

gdb/ChangeLog:
2015-08-13  Pedro Alves  <palves@redhat.com>

* python/py-unwind.c (pyuw_sniffer): Install the invalidate
cleanup after the decref cleanup, not before.

Mass rename `explicit' -> `explicit_loc'.

BuildBot reminded me that "explicit" is a reserved keyword in C++.
This patch simply renames all the (illegal) uses of "explicit". This should
fix the build errors with --enable-build-with-cxx bots.

gdb/ChangeLog

* break-catch-throw.c (re_set_exception_catchpoint) Rename
reserved C++ keyword "explicit" to "explicit_loc".
* breakpoint.c (create_overlay_event_breakpoint)
(create_longjmp_master_breakpoint)
(create_std_terminate_master_breakpoint)
(create_exception_master_breakpoint, update_static_tracepoint):
Rename reserved C++ keyword "explicit" to "explicit_loc".
* completer.c (collect_explicit_location_matches)
(explicit_location_completer): Rename reserved C++ keyword
"explicit" to "explicit_loc".
* linespec.c (struct linespec) <explicit>: Rename to "explicit_loc".
(canonicalize_linespec, create_sals_line_offset)
(convert_linespec_to_sals, convert_explicit_location_to_sals)
(event_location_to_sals, decode_objc): Rename reserved C++ keyword
"explicit" to "explicit_loc".
* location.c (struct event_location) <explicit>: Rename to
"explicit_loc".
(initialize_explicit_location, new_explicit_location)
(explicit_location_to_string_internal, explicit_location_to_linespec):
Rename reserved C++ keyword "explicit" to "explicit_loc".
* location.h (explicit_location_to_string)
(explicit_location_to_linespec, initialize_explicit_location)
(new_explicit_location): Rename reserved C++ keyword "explicit"
to "explicit_loc".
* mi/mi-cmd-break.c (mi_cmd_break_insert_1): Rename reserved C++
keyword "explicit" to "explicit_loc".

Issue an error for read-only segment with dynamic IFUNC relocations

To load an ELF binary with DT_TEXTREL tag, the dynamic linker calls
__mprotect on the read-only segment with PROT_READ|PROT_WRITE before
applying dynamic relocation.  It leads to segfault when performing
IFUNC relocations since the read-only segment has no execute permission.
This patch changes x86 linker to issue an error for read-only segment
with dynamic IFUNC relocations.  Other backends with IFUNC support
may need a similar change.

bfd/

PR ld/18801
* elf32-i386.c (elf_i386_size_dynamic_sections): Issue an error
for read-only segment with dynamic IFUNC relocations.
* elf64-x86-64.c (elf_x86_64_size_dynamic_sections): Likewise.

ld/testsuite/

PR ld/18801
* ld-i386/i386.exp: Run pr18801.
* ld-x86-64/x86-64.exp: Likewise.
* ld-i386/pr18801.d: New file.
* ld-i386/pr18801.s: Likewise.
* ld-x86-64/pr18801.d: Likewise.
* ld-x86-64/pr18801.s: Likewise.

Fixes for unpredictable nops and 26-bit versions of teq,tst,cmn,cmp.

opcodes * arm-dis.c (print_insn_arm): Disassembling for all targets V6
and higher with ARM instruction set will now mark the 26-bit
versions of teq,tst,cmn and cmp as UNPREDICTABLE.
(arm_opcodes): Fix for unpredictable nop being recognized as a teq.

test    * gas/arm/nops.d: New.
* gas/arm/nops.s: New.
* gas/arm/inst.d: Changed expectation file for 26-bit  teq,
tst, cmn and cmp.

Add ChangeLog for check_ifunc_attribute_available

Add ChangeLog entries for the previous commit

[Ada] Add support for subprogram renamings

Consider the following declaration:

    function Foo (I : Integer) return Integer renames Pack.Bar;

As Foo is not materialized as a routine whose name is derived from Foo,
GDB currently cannot use it:

    (gdb) print foo(0)
    No definition of "foo" in current context.

However, compilers can emit DW_TAG_imported_declaration in order to
materialize the fact that Foo is actually another name for Pack.Bar.
This commit enhances the DWARF reader to record global renamings (it
used to put global ones in a static block) and enhances the Ada engine
to leverage this information during symbol lookup.

gdb/ChangeLog:

* ada-lang.c: Include namespace.h
(aux_add_nonlocal_symbols): Fix a function name in comment.
(ada_add_block_renamings): New.
(add_nonlocal_symbols): Add global renamings handling.
(ada_lookup_symbol_list_worker): Move the symbol lookup part
to...
(ada_add_all_symbols): ... this new function.
(ada_add_block_symbols): Try to match the input name against the
"using directives list", perform a recursive symbol lookup on
the matched declarations.
* block.h (struct block): Move the_namespace to top-level as
namespace_info. Remove the language_specific field.
(BLOCK_NAMESPACE): Update access to the namespace_info field.
* buildsym.h (using_directives): Rename into...
(local_using_directives): ... this.
(global_using_directives): New.
(struct context_stack): Rename the using_directives field into
local_using_directives.
* buildsym.c (finish_block_internal): Deal with the proper
using directives repository (local or global).
(prepare_for_building): Reset local_using_directives. Assert
that there is no pending global using directive.
(reset_symtab_globals): Reset global_using_directives and
local_using_directives.
(end_symtab_get_static_block): Don't ignore symtabs that have
only using directives.
(push_context): Update references to local_using_directives.
(buildsym_init): Do not reset using_directives.
* cp-support.c: Include namespace.h.
* cp-support.h (struct using_direct): Move to namespace.h.
(cp_add_using_directives): Move to namespace.h.
* cp-namespace.c: Include namespace.h
(cp_add_using_directive): Move to namespace.c, rename it to
add_using_directive, add a "using_directives" argument and use
it as the pending using directives repository.  All callers
updated.
* dwarf2read.c (using_directives): New.
(read_import_statement): Call using_directives.
(read_func_scope): Update references to local_using_directives.
(read_lexical_block_scope): Likewise.
(read_namespace): Update the heading comment, call
using_directives.
* namespace.h: New file.
* namespace.c: New file.
* Makefile.in (SFILES): Add namespace.c.
(COMMON_OBS): Add namespace.o

gdb/testsuite/ChangeLog:

* gdb.ada/fun_renaming.exp: New testcase.
* gdb.ada/fun_renaming/fun_renaming.adb: New file.
* gdb.ada/fun_renaming/pack.adb: New file.
* gdb.ada/fun_renaming/pack.ads: New file.

Tested on x86_64-linux.  Support for this in GCC is in the pipeline: see
<https://gcc.gnu.org/ml/gcc-patches/2015-07/msg02166.html>.

gas 0f handling

_start:
 .byte 0f-_start
0:

Fixes
..:2: Error: floating point number invalid
..:2: Error: junk at end of line, first unrecognized character is `_'

* expr.c (operand): Rewrite handling of operands starting with "0f".
If atof_generic only parses "-" or "+", treat as expression.

gas 0b vs 0b0 vs 00b

* expr.c (integer_constant): Return O_absent expression if eol.
(operand): For targets with both LOCAL_LABELS_FB and
NUMBERS_WITH_SUFFIX set, treat "0b" not followed by binary
digits as a local label reference.  Correct handling of 0b prefix.
If a suffix is not allowed, error on 0B.

Correct local label doc

* doc/as.texinfo (Local Labels): Allowed range of N in local
labels is non-negative integers, not positive integers.

gdb.base/dso2dso.exp sometimes broken

Keith reported that gdb.base/dso2dso.exp is broken, with the following
error:

| $ make check RUNTESTFLAGS=dso2dso.exp
| [snip]
| Running ../../../src/gdb/testsuite/gdb.base/dso2dso.exp ...
| ERROR: tcl error sourcing ../../../src/gdb/testsuite/gdb.base/dso2dso.exp.
| ERROR: couldn't open
| "../../../src/gdb/testsuite/gdb.base/../../../src/gdb/testsuite/gdb.base/dso2dso-dso1.c":
| no such file or directory
|     while executing
| "error "$message""
|     (procedure "gdb_get_line_number" line 14)
|     invoked from within
| "gdb_get_line_number "STOP HERE" $srcfile_libdso1"
|     (file "../../../src/gdb/testsuite/gdb.base/dso2dso.exp" line 60)
|     invoked from within
| "source ../../../src/gdb/testsuite/gdb.base/dso2dso.exp"
|     ("uplevel" body line 1)
|     invoked from within
| "uplevel #0 source ../../../src/gdb/testsuite/gdb.base/dso2dso.exp"
|     invoked from within
| "catch "uplevel #0 source $test_file_name""

This happens because gdb_get_line_number will prepend $srcdir/$subdir
if the given filename does not start with "/", and this happens when
GDB was configured using a relative path to the configure script.
When using an absolute path like I do, we avoid the pre-pending that
Keith is seeing.

gdb/testsuite/ChangeLog:

        Keith Seitz  <keiths@redhat.com>:
        * gdb.base/dso2dso.exp: Pass basename of source file in call
        to gdb_get_line_number.

Tested on x86_64-linux with both scenarios.

Automatic date update in version.in

Set EI_OSABI to ELFOSABI_GNU for local IFUNC symbols

Since the backend elf_add_symbol_hook isn't called on local symbols,
the EI_OSABI field isn't to ELFOSABI_GNU where are local IFUNC symbols.
This patch changes the x86 backends to set has_gnu_symbols if there are
relocations against IFUNC symbols.  Other backends with IFUNC support
may need a similar change.

This patch also changes the type of has_gnu_symbols from bfd_boolean to
enum elf_gnu_symbols.

bfd/

PR ld/18815
* elf-bfd.h (elf_gnu_symbols): New enum.
(elf_obj_tdata): Use elf_gnu_symbols on has_gnu_symbols.
* elf-s390-common.c (elf_s390_add_symbol_hook): Set
has_gnu_symbols to elf_gnu_symbol_any.
* elf32-arm.c (elf32_arm_add_symbol_hook): Likewise.
* elf32-m68k.c (elf_m68k_add_symbol_hook): Likewise.
* elf32-ppc.c (ppc_elf_add_symbol_hook): Likewise.
* elf32-sparc.c (elf32_sparc_add_symbol_hook): Likewise.
* elf64-ppc.c (ppc64_elf_add_symbol_hook): Likewise.
* elf64-sparc.c (elf64_sparc_add_symbol_hook): Likewise.
* lfxx-aarch64.c (_bfd_aarch64_elf_add_symbol_hook): Likewise.
* elf32-i386.c (elf_i386_check_relocs): Update has_gnu_symbols
if there are relocations against IFUNC symbols.
(elf_i386_add_symbol_hook): Don't check STT_GNU_IFUNC here.
* elf64-x86-64. (elf_x86_64_check_relocs): Update has_gnu_symbols
if there are relocations against IFUNC symbols.
(elf_x86_64_add_symbol_hook): Don't check STT_GNU_IFUNC here.

ld/testsuite/

PR ld/18815
* ld-i386/i386.exp: Run pr18815.
* ld-x86-64/x86-64.exp: Likewise.
* ld-i386/pr18815.d: New file.
* ld-i386/pr18815.s: Likewise.
* ld-x86-64/pr18815.d: Likewise.
* ld-x86-64/pr18815.s: Likewise.

[amd64] Invalid return address after displaced stepping

Making all-stop run on top of non-stop caused a small regression
in behavior. This was observed on x86_64-linux. The attached testcase
is in C whereas the investigation was done with an Ada program,
but it's the same scenario, and using a C testcase allows wider testing.
Basically: I am debugging a single-threaded program, and currently
stopped inside a function provided by a shared-library, at a line
calling a subprogram provided by a second shared library, and trying
to "next" over that function call.

Before we changed the default all-stop behavior, we had:

    7             Impl_Initialize;  -- Stop here and try "next" over this line
    (gdb) n
    8             return 5;  <<-- OK

But now, "next" just stops much earlier:

    (gdb) n
    0x00007ffff7bd8560 in impl.initialize@plt () from /[...]/lib/libpck.so

What happens is that next stops at a call instruction, which calls
the function's PLT, and GDB fails to notice that the inferior stepped
into a subroutine, and so decides that we're done. We can see another
symptom of the same issue by looking at the backtrace at the point
GDB stopped:

    (gdb) bt
    #0  0x00007ffff7bd8560 in impl.initialize@plt ()
       from /[...]/lib/libpck.so
    #1  0x00000000f7bd86f9 in ?? ()
    #2  0x00007fffffffdf50 in ?? ()
    #3  0x0000000000401893 in a () at /[...]/a.adb:7
    Backtrace stopped: frame did not save the PC

With a functioning GDB, the backtrace looks like the following instead:

    #0  0x00007ffff7bd8560 in impl.initialize@plt ()
       from /[...]/lib/libpck.so
    #1  0x00007ffff7bd86f9 in sub () at /[...]/pck.adb:7
    #2  0x0000000000401893 in a () at /[...]/a.adb:7

Note how, for frame #1, the address looks quite similar, except
for the high-order bits not being set:

    #1  0x00007ffff7bd86f9 in sub () at /[...]/pck.adb:7   <<<--  OK
    #1  0x00000000f7bd86f9 in ?? ()                        <<<--  WRONG
              ^^^^
              ||||
              Wrong

Investigating this further led me to displaced stepping.
As we are "next"-ing from a location where a breakpoint is inserted,
we need to step out of it, and since we're on non-stop mode, we need
to do it using displaced stepping. And looking at
amd64-tdep.c:amd64_displaced_step_fixup, I found the code that handles
the return address:

    regcache_cooked_read_unsigned (regs, AMD64_RSP_REGNUM, &rsp);
    retaddr = read_memory_unsigned_integer (rsp, retaddr_len, byte_order);
    retaddr = (retaddr - insn_offset) & 0xffffffffUL;

The mask used to compute retaddr looks wrong to me, keeping only
4 bytes instead of 8, and explains why the high order bits of
the backtrace are unset. What happens is that, after the displaced
stepping has completed, GDB restores that return address at the location
where the program expects it.  But because the top half bits of
the address have been masked out, the return address is now invalid.
The incorrect behavior of the "next" command and the backtrace at
that location are the first symptoms of that.  Another symptom is
that this actually alters the behavior of the program, where a "cont"
from there soon leads to a SEGV when the inferior tries to jump back
to that incorrect return address:

    (gdb) c
    Continuing.

    Program received signal SIGSEGV, Segmentation fault.
    0x00000000f7bd86f9 in ?? ()
    ^^^^^^^^^^^^^^^^^^

This patch fixes the issue by using a mask that seems more appropriate
for this architecture.

gdb/ChangeLog:

        * amd64-tdep.c (amd64_displaced_step_fixup): Fix the mask used to
        compute RETADDR.

gdb/testsuite/ChangeLog:

        * gdb.base/dso2dso-dso2.c, gdb.base/dso2dso-dso2.h,
        gdb.base/dso2dso-dso1.c, gdb.base/dso2dso-dso1.h, gdb.base/dso2dso.c,
        gdb.base/dso2dso.exp: New files.

Tested on x86_64-linux, no regression.

Initialize `location' in gdbpy_decode_line

BuildBot flagged an uninitialized variable coming from one of the patches
in my recently committed locations/explicit patchset.

The following patch fixes this.

gdb/ChangeLog

* python/python.c (gdbpy_decode_line): Initialize `location' to NULL
and only call decode_line_1 when it is non-NULL.

diff --git a/gdb/python/python.c b/gdb/python/python.c
index c28f98b..14da62c 100644
--- a/gdb/python/python.c
+++ b/gdb/python/python.c
@@ -730,7 +730,7 @@ gdbpy_decode_line (PyObject *self, PyObject *args)
   PyObject *result = NULL;
   PyObject *return_result = NULL;
   PyObject *unparsed = NULL;
-  struct event_location *location;
+  struct event_location *location = NULL;

   if (! PyArg_ParseTuple (args, "|s", &arg))
     return NULL;
@@ -747,7 +747,7 @@ gdbpy_decode_line (PyObject *self, PyObject *args)

   TRY
     {
-      if (arg)
+      if (location != NULL)
  sals = decode_line_1 (location, 0, 0, 0);
       else
  {

xtensa: add --auto-litpools option

Auto-litpools is the automated version of text-section-literals: literal
pool candidate frags are planted every N frags and during relaxation
they are turned into actual literal pools where literals are moved to
become reachable for their first reference by L32R instruction.

2015-08-12  David Weatherford  <weath@cadence.com>
gas/
* config/tc-xtensa.c (struct litpool_frag, struct litpool_seg):
New structures.
(xtensa_maybe_create_literal_pool_frag): New function.
(litpool_seg_list, auto_litpools, auto_litpool_limit)
(litpool_buf, litpool_slotbuf): New static variables.
(option_auto_litpools, option_no_auto_litpools)
(option_auto_litpool_limit): New enum identifiers.
(md_longopts): Add entries for auto-litpools, no-auto-litpools
and auto-litpool-limit.
(md_parse_option): Handle option_auto_litpools,
option_no_auto_litpools and option_auto_litpool_limit.
(md_show_usage): Add help for --[no-]auto-litpools and
--auto-litpool-limit.
(xtensa_mark_literal_pool_location): Record a place for literal
pool with a call to xtensa_maybe_create_literal_pool_frag.
(get_literal_pool_location): Find highest priority literal pool
or convert candidate to literal pool when auto-litpools are used.
(xg_assemble_vliw_tokens): Create literal pool after jump
instruction.
(xtensa_check_frag_count): Create candidate literal pool every
auto_litpool_limit frags.
(xtensa_relax_frag): Add jump around literals to non-empty
literal pool.
(xtensa_move_literals): Estimate literal pool addresses and move
unreachable literals closer to their users, converting candidate
to literal pool if needed.
(xtensa_switch_to_non_abs_literal_fragment): Only emit error
about missing .literal_position in case auto-litpools are not
used.
* config/tc-xtensa.h (xtensa_relax_statesE): New relaxation
state: RELAX_LITERAL_POOL_CANDIDATE_BEGIN.
* doc/as.texinfo (Xtensa options):  Document --auto-litpools and
--no-auto-litpools options.
* doc/c-xtensa.texi (Xtensa options): Likewise.

2015-08-12  Max Filippov  <jcmvbkbc@gmail.com>
gas/testsuite/
* gas/xtensa/all.exp: Add auto-litpools to the list of xtensa
tests.
* gas/xtensa/auto-litpools.s: New file: auto-litpools test.
* gas/xtensa/auto-litpools.s: New file: auto-litpools test
result pattern.

Guarantee save-and-restore of GDBFLAGS on gdb.base/checkpoint-ns.exp

Keith found out that several tests were failing when testing the
native-gdbserver board on Fedora (x86_64).  Strangely, these failures
had not been reported by our BuildBot.  Later, he found that the reason
for this was because the failures only happened when running the
testsuite without FORCE_PARALLEL (i.e., on serial mode; maybe it would
be worth having a builder testing things on serial...).  Then, he
decided to start bisecting the changes to see which one introduced the
failure (it was not trivial to know this only by looking at gdb.log).

After a lot of time, he found that Pedro's commit
e1316e60d4d1fe406efc6e7536b2bdb43733e9d2 was the culprit.  There was
nothing wrong in the code, but the new gdb.base/checkpoint-ns.exp
testcase did something that left the GDBFLAGS variable in an
inconsistent state.  This test works by modifying this variable to set
non-stop on, sourcing gdb.base/checkpoint.exp (which does the hard
work), and then restoring the old value on GDBFLAGS.  However, this was
not working because gdb.base/checkpoint.exp bails out if it is being
tested on gdbserver, and when it calls "continue" the control goes back
to the function calling the tests, and not to
gdb.base/checkpoint-ns.exp.

The fix is simple: just wrap the "source" call, and make
gdb.base/checkpoint-ns.exp aware of the "continue"/"return" calls made
by gdb.base/checkpoint.exp.

gdb/testsuite/ChangeLog:
2015-08-12  Sergio Durigan Junior  <sergiodj@redhat.com>
    Pedro Alves  <palves@redhat.com>
    Keith Seitz  <keiths@redhat.com>

* gdb.base/checkpoint-ns.exp: Use save_vars to save and restore
GDBFLAGS.

[MIPS] Map 'move' to 'or'.

The MIPS assembly idiom 'move' now maps to the 'or' machine instruction. This
change affects microMIPS, MIPS32, MIPS64.

2015-08-12  Simon Dardis  <simon.dardis@imgtec.com>

opcodes/

* micromips-opc.c (micromips_opcodes): Re-order table so that move
based on 'or' is first.
* mips-opc.c (mips_builtin_opcodes): Ditto.

bfd/

* elfxx-mips.c (STUB_MOVE): Change to use 'or' only.
(mips_o32_exec_plt0_entry, mips_n32_exec_plt0_entry,
mips_n64_exec_plt0_entry, micromips_insn32_o32_exec_plt0_entry):
Update to use 'or' instead of 'addu/daddu'.
(_bfd_mips_elf_finish_dynamic_symbol): Update usage of STUB_MOVE.
(move_insns_32): Reorder table.

gas/

* config/tc-mips.c (move_register): Change to use 'or' only.
(s_cpload, s_cpsetup, s_cprestore, s_cpreturn): Update to
use or for move.

gas/testsuite/

* gas/mips/elf-rel23.d: Update test.
* gas/mips/elf-rel23.d: Ditto.
* gas/mips/elf-rel23a.d: Ditto.
* gas/mips/elf-rel23b.d: Ditto.
* gas/mips/elf_e_flags1.d: Ditto.
* gas/mips/elf_e_flags2.d: Ditto.
* gas/mips/elf_e_flags3.d: Ditto.
* gas/mips/elf_e_flags4.d: Ditto.
* gas/mips/loc-swap-dis.d: Ditto.
* gas/mips/micromips-insn32.d: Ditto.
* gas/mips/micromips-noinsn32.d: Ditto.
* gas/mips/micromips-trap.d: Ditto.
* gas/mips/micromips.d: Ditto.
* gas/mips/mips-abi32-pic.d: Ditto.
* gas/mips/mips-abi32.d: Ditto.
* gas/mips/mips-gp32-fp32-pic.d: Ditto.
* gas/mips/mips-gp32-fp32.d: Ditto.
* gas/mips/mips-gp32-fp64-pic.d: Ditto.
* gas/mips/mips-gp32-fp64.d: Ditto.
* gas/mips/mips-gp64-fp32-pic.d: Ditto.
* gas/mips/mips-gp64-fp32.d: Ditto.
* gas/mips/mips-gp64-fp64-pic.d: Ditto.
* gas/mips/mips-gp64-fp64.d: Ditto.
* gas/mips/mipsr6@loc-swap-dis.d: Ditto.
* gas/mips/tls-o32.d: Ditto.
* gas/mips/uld2-eb.d: Ditto.
* gas/mips/uld2-el.d: Ditto.
* gas/mips/ulw2-eb-ilocks.d: Ditto.
* gas/mips/ulw2-eb.d: Ditto.
* gas/mips/ulw2-el-ilocks.d: Ditto.
* gas/mips/ulw2-el.d: Ditto.
* gas/mips/move.d: New test.
* gas/mips/move.s: Ditto.
* gas/mips/micromips32-move.d: Ditto.
* gas/mips/micromips32-move.s: Ditto.
* gas/mips/mips.exp: Run the new tests.

gold/

* mips.cc (plt0_entry_o32, plt0_entry_n32, plt0_entry_n64,
lazy_stub_normal_1, lazy_stub_normal_1_n64,
lazy_stub_normal_2, lazy_stub_normal_2_n64, lazy_stub_big,
lazy_stub_big_n64, lazy_stub_micromips32_normal_1_n64,
lazy_stub_micromips32_normal_2_n64, lazy_stub_micromips32_big,
lazy_stub_micromips32_big_n64): Update to use 'or' for move instead
of 'addu/daddu'.

ld/testsuite/

* ld-mips-elf/compressed-plt-1-n32-mips16.od: Update test.
* ld-mips-elf/compressed-plt-1-n32-umips.od: Ditto.
* ld-mips-elf/compressed-plt-1-o32-mips16-got.od: Ditto.
* ld-mips-elf/compressed-plt-1-o32-mips16-only.od: Ditto.
* ld-mips-elf/compressed-plt-1-o32-mips16-word.od: Ditto.
* ld-mips-elf/compressed-plt-1-o32-mips16.od: Ditto.
* ld-mips-elf/compressed-plt-1-o32-se.od: Ditto.
* ld-mips-elf/compressed-plt-1-o32-umips-got.od: Ditto.
* ld-mips-elf/compressed-plt-1-o32-umips-word.od: Ditto.
* ld-mips-elf/compressed-plt-1-o32-umips.od: Ditto.
* ld-mips-elf/jalx-2.dd: Ditto.
* ld-mips-elf/mips16-pic-3.dd: Ditto.
* ld-mips-elf/pic-and-nonpic-3a.dd: Ditto.
* ld-mips-elf/pic-and-nonpic-3b.dd: Ditto.
* ld-mips-elf/pic-and-nonpic-5b.dd: Ditto.
* ld-mips-elf/pic-and-nonpic-6-n32.dd: Ditto.
* ld-mips-elf/pic-and-nonpic-6-o32.dd: Ditto.
* ld-mips-elf/stub-dynsym-1-10000.d: Ditto.
* ld-mips-elf/stub-dynsym-1-2fe80.d: Ditto.
* ld-mips-elf/stub-dynsym-1-7fff.d: Ditto.
* ld-mips-elf/stub-dynsym-1-8000.d: Ditto.
* ld-mips-elf/stub-dynsym-1-fff0.d: Ditto.
* ld-mips-elf/tlsbin-o32.d: Ditto.
* ld-mips-elf/tlsdyn-o32-1.d: Ditto.
* ld-mips-elf/tlsdyn-o32-2.d: Ditto.
* ld-mips-elf/tlsdyn-o32-3.d: Ditto.
* ld-mips-elf/tlsdyn-o32.d: Ditto.
* ld-mips-elf/tlslib-o32.d: Ditto.

Use save_vars to replace existing manipulation of globals in tests

gdb/testsuite/ChangeLog:

* gdb.base/gdbhistsize-history.exp
(test_histsize_history_setting): Use save_vars.
* gdb.base/gdbinit-history.exp (test_gdbinit_history_setting):
Use save_vars.
(test_no_truncation_of_unlimited_history_file): Use save_vars.
* gdb.base/readline.exp: Use save_vars.

Remove ChangeLog separator

Introduce save_vars, a testsuite proc for safely manipulating globals

gdb/testsuite/ChangeLog:

* lib/gdb.exp (save_vars): New proc.

[AArch64] Fix test failures on elf configuration

This patch fixed those failures on elf configuration by:

   * Improve the ILP32 target selector "aarch64_choose_ilp32_emul",
     makes it more robust. Target triples copied from configure.tgt

   * Updated emit-relocs-86/-overflow.d to use aarch64_choose_ilp32_emul
     which is following what have done with emit-relocs-28.

   * Those instruction encoding mismatch is because those encoding
     contains pc-relative address. As for elf, we may have different
     start address. relaxed encodind check, especially for
     aarch64-farcall-b/bl-plt, as the main purpose of those check are
     ELF text/data layout, we just want to make sure veneer to plt stub
     is generated.

2015-08-12  Jiong Wang  <jiong.wang@arm.com>

ld/testsuite/
  * ld-aarch64/aarch64-elf.exp (aarch64_choose_ilp32_emul): Support all
  four triple shapes: aarch64-*-linux*, aarch64-*-elf,
  aarch64_be-*-linux*, aarch64_be-*-elf.
  * ld-aarch64/emit-relocs-86.d: Use aarch64_choose_ilp32_emul.
  * ld-aarch64/emit-relocs-86-overflow.d: Likewise.
  * ld-aarch64/ld-aarch64/farcall-b-plt.d: Relax instrucion encoding
  check when they reflect address.
  * ld-aarch64/ld-aarch64/farcall-bl-plt.d: Likewise.

Sync ansidecl.h with GCC

Sync with GCC
2015-08-11  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

* ansidecl.h (GCC_FINAL): New macro.

Remove trailing spaces in ld

Remove trailing spaces in opcodes

Remove trailing spaces in gprof

Remove trailing spaces in binutils

Remove trailing spaces in gas

Remove trailing spaces in bfd

Update Swedish translation in gprof.

* po/sv.po: Updated Swedish translation.

[regression] Do not read from catchpoint/watchpoint locations' addresses when checking for a permanent breakpoint

While running bare-metal tests with GDB i noticed some failures in
gdb.base/break.exp, related to the use of the catch commands.

It turns out GDB tries to access memory address 0x0 whenever one tries
to insert a catchpoint, which should obviously not happen.

This was introduced with the changes for permanent breakpoints. In special,
bp_loc_is_permanent tries to check if there is a breakpoint inserted at
the same address as the current breakpoint's location's address. In the
case of catchpoints, this is 0x0.

(top-gdb) catch fork
Sending packet: $m0,1#fa...Packet received: E01
Catchpoint 4 (fork)

(top-gdb) catch vfork
Sending packet: $m0,1#fa...Packet received: E01
Catchpoint 5 (vfork)

It is not obvious to detect because this fails silently for Linux. For our
bare-metal testing, though, this fails with a clear error message from the
target about not being able to read such address.

The attached patch addresses this by bailing out of bp_loc_is_permanent (...)
if the location address is not meaningful. I also took the opportunity to
update the comment for breakpoint_address_is_meaningful, which mentioned
breakpoint addresses as opposed to their locations' addresses.

gdb/ChangeLog:

2015-08-11  Luis Machado  <lgustavo@codesourcery.com>

* breakpoint.c (bp_loc_is_permanent): Return 0 when breakpoint
location address is not meaningful.
(breakpoint_address_is_meaningful): Update comment.

Properly skip IFUNC relocations in debug sections

Use "continue" instead of "break" to skip IFUNC relocations in debug
sections.

* elf32-i386.c (elf_i386_relocate_section): Properly skip IFUNC
relocations in debug sections.
* elf64-x86-64.c (elf_x86_64_relocate_section): Likewise.

[AArch64] Rename relocs-257-symbolic-func ld test to relocs-1027-symbolic-func.

2015-08-12  Thomas Preud'homme  <thomas.preudhomme@arm.com>

ld/testsuite/
    * ld-aarch64/aarch64-elf.exp: Rename relocs-257-symbolic-func to
    relocs-1027-symbolic-func.
    * ld-aarch64/relocs-257-symbolic-func.d: Rename to ...
    * ld-aarch64/relocs-1027-symbolic-func.d: ... this.
    * ld-aarch64/relocs-257-symbolic-func.s: Rename to ...
    * ld-aarch64/relocs-1027-symbolic-func.s: ... this.

Explicit locations: documentation updates

This patch adds documentation for explicit locations to both the
User Manual and gdb's online help system.

gdb/ChangeLog:

* NEWS: Mention explicit locations.
* breakpoint.c [LOCATION_HELP_STRING]: New macro.
[BREAK_ARGS_HELP]: Use LOCATION_HELP_STRING.
(_initialize_breakpoint): Update documentation for
"clear", "break", "trace", "strace", "ftrace", and "dprintf".

gdb/doc/ChangeLog:

* gdb.texinfo (Thread-Specific Breakpoints, Printing Source Lines):
Use "location(s)"instead of "linespec(s)".
(Specifying a Location): Rewrite.
Add subsections describing linespec, address, and explicit locations.
Add node/menu for each subsection.
(Source and Machine Code, C Preprocessor Macros)
(Create and Delete Trace points)
(Extensions for Ada Tasks): Use "location(s)" instead of "linespec(s)".
(Continuing at a Different Address): Remove "linespec" examples.
Add reference to "Specify a Location"
(The -break-insert Command): Rewrite.  Add anchor.
Add reference to appropriate manual section discussing locations.
(The -dprintf-insert Command): Refer to -break-insert for
specification of 'location'.

gdb/testsuite/ChangeLog:

* gdb.base/help.exp: Update help_breakpoint_text.

Explicit locations: MI support for explicit locations

This patch adds support for explicit locations to MI's -break-insert
command. The new options, documented in the User Manual, are
--source, --line, --function, and --label.

gdb/ChangeLog:

* mi/mi-cmd-break.c (mi_cmd_break_insert_1): Add support for
explicit locations, options "--source", "--function",
"--label", and "--line".

gdb/testsuite/ChangeLog:

* gdb.mi/mi-break.exp (test_explicit_breakpoints): New proc.
(at toplevel): Call test_explicit_breakpoints.
* gdb.mi/mi-dprintf.exp: Add tests for explicit dprintf
breakpoints.
* lib/mi-support.exp (mi_make_breakpoint): Add support for
breakpoint conditions, "-cond".

Explicit locations: add UI features for CLI

This patch exposes explicit locations to the CLI user.  This enables
users to "explicitly" specify attributes of the breakpoint location
to avoid any ambiguity that might otherwise exist with linespecs.

The general syntax of explicit locations is:
-source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME
-label LABEL_NAME

Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users
may use the completer with either options or values.

gdb/ChangeLog:

* completer.c: Include location.h.
(enum match_type): New enum.
(location_completer): Rename to ...
(linespec_completer): ... this.
(collect_explicit_location_matches, backup_text_ptr)
(explicit_location_completer): New functions.
(location_completer): "New" function; handle linespec
and explicit location completions.
(complete_line_internal): Remove all location completer-specific
handling.
* linespec.c (linespec_lexer_lex_keyword, is_ada_operator)
(find_toplevel_char): Export.
(linespec_parse_line_offset): Export.
Issue error if STRING is not numerical.
(gdb_get_linespec_parser_quote_characters): New function.
* linespec.h (linespec_parse_line_offset): Declare.
(get_gdb_linespec_parser_quote_characters): Declare.
(is_ada_operator): Declare.
(find_toplevel_char): Declare.
(linespec_lexer_lex_keyword): Declare.
* location.c (explicit_to_event_location): New function.
(explicit_location_lex_one): New function.
(string_to_explicit_location): New function.
(string_to_event_location): Handle explicit locations.
* location.h (explicit_to_event_location): Declare.
(string_to_explicit_location): Declare.

gdb/testsuite/ChangeLog:

* gdb.linespec/3explicit.c: New file.
* gdb.linespec/cpexplicit.cc: New file.
* gdb.linespec/cpexplicit.exp: New file.
* gdb.linespec/explicit.c: New file.
* gdb.linespec/explicit.exp: New file.
* gdb.linespec/explicit2.c: New file.
* gdb.linespec/ls-errs.exp: Add explicit location tests.
* lib/gdb.exp (capture_command_output): Regexp-escape `command'
before using in the matching pattern.
Clarify that `prefix' is a regular expression.

Explicit locations: introduce explicit locations

This patch add support for explicit locations and switches many linespec
locations to this new location type.  This patch also converts all
linespec locations entered by the user to an explicit representation
internally (thus bypassing the linespec parser when resetting the
breakpoint).

This patch does not introduce any user-visible changes.

gdb/ChangeLog:

* break-catch-throw.c (re_set_exception_catchpoint): Convert
linespec into explicit location.
* breakpoint.c (create_overlay_breakpoint)
(create_longjmp_master_breakpoint)
(create_std_terminate_master_breakpoint)
(create_exception_master_breakpoint): Convert linespec into explicit
location.
(update_static_tracepoint): Convert linespec into explicit location.
* linespec.c (enum offset_relative_sign, struct line_offset): Move
location.h.
(struct linespec) <expression, expr_pc, source_filename>
<function_name, label_name, line_offset>: Replace with ...
<explicit>: ... this.
<is_linespec>: New member.
(PARSER_EXPLICIT): New accessor macro.
(undefined_label_error): New function.
(source_file_not_found_error): New function.
(linespec_parse_basic): The parser result is now an explicit location.
Use PARSER_EXPLICIT to access it.
Use undefined_label_error.
(canonicalize_linespec): Convert canonical linespec into explicit
location.
Move string representation of location to explicit_location_to_linespec
and use it and explicit_location_to_string to save string
representations of the canonical location.
(create_sals_line_offset, convert_linespec_to_sals): `ls' contains an
explicit location.  Update all references.
(convert_explicit_location_to_sals): New function.
(parse_linespec): Use PARSER_EXPLICIT to access the parser
result's explicit location.
(linespec_state_constructor): Initialize is_linespec.
Use PARSER_EXPLICIT.
(linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's
result.
(event_location_to_sals): For linespec locations, set is_linespec.
Handle explicit locations.
(decode_objc): 'ls' contains an explicit location now. Update all
references.
(symtabs_from_filename): Use source_file_not_found_error.
* location.c (struct event_location.u) <explicit>: New member.
(initialize_explicit_location): New function.
(initialize_event_location): Initialize explicit locations.
(new_explicit_location, get_explicit_location)
(get_explicit_location_const): New functions.
(explicit_to_string_internal): New function; most of contents moved
from canonicalize_linespec.
(explicit_location_to_string): New function.
(explicit_location_to_linespec): New function.
(copy_event_location, delete_event_location)
(event_location_to_string_const, event_location_empty_p): Handle
explicit locations.
* location.h (enum offset_relative_sign, struct line_offset): Move
here from linespec.h.
(enum event_location_type): Add EXPLICIT_LOCATION.
(struct explicit_location): New structure.
(explicit_location_to_string): Declare.
(explicit_location_to_linespec): Declare.
(new_explicit_location, get_explicit_locationp
(get_explicit_location_const, initialize_explicit_location): Declare.

Explicit locations: introduce probe locations

This patch adds support for probe locations and converts existing
probe linespec locations to the new location type.

gdb/ChangeLog:

* break-catch-throw.c (re_set_exception_catchpoint): Convert
linespec for stap probe to probe location.
* breakpoint.c (create_longjmp_master_breakpoint)
(create_exception_master_breakpoint): Likewise.
(break_command_1): Remove local variable `arg_cp'.
Check location type to set appropriate breakpoint ops methods.
(trace_command): Likewise.
* linespec.c (event_location_to_sals): Assert on probe locations.
* location.c (EL_PROBE): Add macro definition.
(new_probe_location, get_probe_location): New functions.
(copy_event_location, delete_event_location, event_location_to_string)
(string_to_event_location, event_location_empty_p): Handle probe
locations.
* location.h (enum event_location_type): Add PROBE_LOCATION.
(new_probe_location, get_probe_location): Declare.
* probe.c (parse_probes): Assert that LOCATION is a probe location.
Convert linespec into probe location.

Explicit locations: introduce address locations

This patch adds support for address locations, of the form "*ADDR".
[Support for address linespecs has been removed/replaced by this "new"
location type.] This patch also converts any existing address locations
from its previous linespec type.

gdb/ChangeLog:

* breakpoint.c (create_thread_event_breakpoint, init_breakpoint_sal):
Convert linespec to address location.
* linespec.c (canonicalize_linespec): Do not handle address
locations here.
(convert_address_location_to_sals): New function; contents moved
from ...
(convert_linespc_to_sals): ... here.
(parse_linespec): Remove address locations from linespec grammar.
Remove handling of address locations.
(linespec_lex_to_end): Remove handling of address linespecs.
(event_location_to_sals): Handle ADDRESS_LOCATION.
(linespec_expression_to_pc): Export.
* linespec.h (linespec_expression_to_pc): Add declaration.
* location.c (struct event_location.u) <address>: New member.
(new_address_location, get_address_location): New functions.
(copy_event_location, delete_event_location, event_location_to_string)
(string_to_event_location, event_location_empty_p): Handle address
locations.
* location.h (enum event_location_type): Add ADDRESS_LOCATION.
(new_address_location, get_address_location): Declare.
* python/py-finishbreakpoint.c (bpfinishpy_init): Convert linespec
to address location.
* spu-tdep.c (spu_catch_start): Likewise.

Explicit locations: use new location API

This patch converts the code base to use the new struct event_location
API being introduced. This patch preserves the current functionality and
adds no new features.

The "big picture" API usage introduced by this patch may be illustrated
with a simple exmaple. Where previously developers would write:

void
my_command (char *arg, int from_tty)
{
   create_breakpoint (..., arg, ...);
   ...
}

one now uses:

void
my_command (char *arg, int from_tty)
{
   struct event_locaiton *location;
   struct cleanup *back_to;

   location = string_to_event_locaiton (&arg, ...);
   back_to = make_cleanup_delete_event_location (location);
   create_breakpoint (..., location, ...);
   do_cleanups (back_to);
}

Linespec-decoding functions (now called location-decoding) such as
decode_line_full no longer skip argument pointers over processed input.
That functionality has been moved into string_to_event_location as
demonstrated above.

gdb/ChangeLog

* ax-gdb.c: Include location.h.
(agent_command_1) Use linespec location instead of address
string.
* break-catch-throw.c: Include location.h.
(re_set_exception_catchpoint): Use linespec locations instead
of address strings.
* breakpoint.c: Include location.h.
(create_overlay_event_breakpoint, create_longjmp_master_breakpoint)
(create_std_terminate_master_breakpoint)
(create_exception_master_breakpoint, update_breakpoints_after_exec):
Use linespec location instead of address string.
(print_breakpoint_location):  Use locations and
event_location_to_string.
Print extra_string for pending locations for non-MI streams.
(print_one_breakpoint_location): Use locations and
event_location_to_string.
(init_raw_breakpoint_without_location): Initialize b->location.
(create_thread_event_breakpoint): Use linespec location instead of
address string.
(init_breakpoint_sal): Likewise.
Only save extra_string if it is non-NULL and not the empty string.
Use event_location_to_string instead of `addr_string'.
Constify `p' and `endp'.
Use skip_spaces_const/skip_space_const instead of non-const versions.
Copy the location into the breakpoint.
If LOCATION is NULL, save the breakpoint address as a linespec location
instead of an address string.
(create_breakpoint_sal): Change `addr_string' parameter to a struct
event_location. All uses updated.
(create_breakpoints_sal): Likewise for local variable `addr_string'.
(parse_breakpoint_sals): Use locations instead of address strings.
Remove check for empty linespec with conditional.
Refactor.
(decode_static_tracepoint_spec): Make argument const and update
function.
(create_breakpoint): Change `arg' to a struct event_location and
rename.
Remove `copy_arg' and `addr_start'.
If EXTRA_STRING is empty, set it to NULL.
Don't populate `canonical' for pending breakpoints.
Pass `extra_string' to find_condition_and_thread.
Clear `extra_string' if `rest' was NULL.
Do not error with "garbage after location" if setting a dprintf
breakpoint.
Copy the location into the breakpoint instead of an address string.
(break_command_1): Use string_to_event_location and pass this to
create_breakpoint instead of an address string.
Check against `arg_cp' for a probe linespec.
(dprintf_command): Use string_to_event_location and pass this to
create_breakpoint instead of an address string.
Throw an exception if no format string was specified.
(print_recreate_ranged_breakpoint): Use event_location_to_string
instead of address strings.
(break_range_command, until_break_command)
(init_ada_exception_breakpoint): Use locations instead
of address strings.
(say_where): Print out extra_string for pending locations.
(base_breakpoint_dtor): Delete `location' and `location_range_end' of
the breakpoint.
(base_breakpoint_create_sals_from_location): Use struct event_location
instead of address string.
Remove `addr_start' and `copy_arg' parameters.
(base_breakpoint_decode_location): Use struct event_location instead of
address string.
(bkpt_re_set): Use locations instead of address strings.
Use event_location_empty_p to check for unset location.
(bkpt_print_recreate): Use event_location_to_string instead of
an address string.
Print out extra_string for pending locations.
(bkpt_create_sals_from_location, bkpt_decode_location)
  (bkpt_probe_create_sals_from_location): Use struct event_location
instead of address string.
(bkpt_probe_decode_location): Use struct event_location instead of
address string.
(tracepoint_print_recreate): Use event_location_to_string to
recreate the tracepoint.
(tracepoint_create_sals_from_location, tracepoint_decode_location)
(tracepoint_probe_create_sals_from_location)
(tracepoint_probe_decode_location): Use struct event_location
instead of address string.
(dprintf_print_recreate): Use event_location_to_string to recreate
the dprintf.
(dprintf_re_set): Remove check for valid/missing format string.
(strace_marker_create_sals_from_location)
(strace_marker_create_breakpoints_sal, strace_marker_decode_location)
(update_static_tracepoint): Use struct event_location instead of
address string.
(location_to_sals): Likewise.
Pass `extra_string' to find_condition_and_thread.
For newly resolved pending breakpoint locations, clear the location's
string representation.
Assert that the breakpoint's condition string is NULL when
condition_not_parsed.
(breakpoint_re_set_default, create_sals_from_location_default)
(decode_location_default, trace_command, ftrace_command)
(strace_command, create_tracepoint_from_upload): Use locations
instead of address strings.
* breakpoint.h (struct breakpoint_ops) <create_sals_from_location>:
Use struct event_location instead of address string.
Update all uses.
<decode_location>: Likewise.
(struct breakpoint) <addr_string>: Change to struct event_location
and rename `location'.
<addr_string_range_end>: Change to struct event_location and rename
`location_range_end'.
(create_breakpoint): Use struct event_location instead of address
string.
* cli/cli-cmds.c: Include location.h.
(edit_command, list_command): Use locations instead of address strings.
* elfread.c: Include location.h.
(elf_gnu_ifunc_resolver_return_stop): Use event_location_to_string.
* guile/scm-breakpoint.c: Include location.h.
(bpscm_print_breakpoint_smob): Use event_location_to_string.
(gdbscm_register_breakpoint): Use locations instead of address
strings.
* linespec.c: Include location.h.
(struct ls_parser) <stream>: Change to const char *.
(PARSER_STREAM): Update.
(lionespec_lexer_lex_keyword): According to find_condition_and_thread,
keywords must be followed by whitespace.
(canonicalize_linespec): Save a linespec location into `canonical'.
Save a canonical linespec into `canonical'.
(parse_linespec): Change `argptr' to const char * and rename `arg'.
All uses updated.
Update function description.
(linespec_parser_new): Initialize `parser'.
Update initialization of  parsing stream.
(event_location_to_sals): New function.
(decode_line_full): Change `argptr' to a struct event_location and
rename it `location'.
Use locations instead of address strings.
Call event_location_to_sals instead of parse_linespec.
(decode_line_1): Likewise.
(decode_line_with_current_source, decode_line_with_last_displayed)
Use locations instead of address strings.
(decode_objc): Likewise.
Change `argptr' to const char * and rename `arg'.
(destroy_linespec_result): Delete the linespec result's location
instead of freeing the address string.
* linespec.h (struct linespec_result) <addr_string>: Change to
struct event_location and rename to ...
<location>: ... this.
(decode_line_1, decode_line_full): Change `argptr' to struct
event_location.  All callers updated.
* mi/mi-cmd-break.c: Include language.h, location.h, and linespec.h.
(mi_cmd_break_insert_1): Use locations instead of address strings.
Throw an error if there was "garbage" at the end of the specified
linespec.
* probe.c: Include location.h.
(parse_probes): Change `argptr' to struct event_location.
Use event locations instead of address strings.
* probe.h (parse_probes): Change `argptr' to struct event_location.
* python/py-breakpoint.c: Include location.h.
(bppy_get_location): Constify local variable `str'.
Use event_location_to_string.
(bppy_init): Use locations instead of address strings.
* python/py-finishbreakpoint.c: Include location.h.
(bpfinishpy_init): Remove local variable `addr_str'.
Use locations instead of address strings.
* python/python.c: Include location.h.
(gdbpy_decode_line): Use locations instead of address strings.
* remote.c: Include location.h.
(remote_download_tracepoint): Use locations instead of address
strings.
* spu-tdep.c: Include location.h.
(spu_catch_start): Remove local variable `buf'.
Use locations instead of address strings.
* tracepoint.c: Include location.h.
(scope_info): Use locations instead of address strings.
(encode_source_string): Constify parameter `src'.
* tracepoint.h (encode_source_string): Likewise.

gdb/testsuite/ChangeLog

* gdb.base/dprintf-pending.exp: Update dprintf "without format"
test.
Add tests for missing ",FMT" and ",".

Explicit locations: introduce new struct event_location-based API

This patch introduces the new breakpoint/"linespec" API based on
a new struct event_location.  This API currently only supports
traditional linespecs, maintaining the status quo of the code base.
Future patches will add additional functionality for other location
types such as address locations.

gdb/ChangeLog:

* Makefile.in (SFILES): Add location.c.
(HFILES_NO_SRCDIR): Add location.h.
(COMMON_OBS): Add location.o.
* linespec.c (linespec_lex_to_end): New function.
* linespec.h (linespec_lex_to_end): Declare.
* location.c: New file.
* location.h: New file.

Explicit locations: rename "address string"/"addr_string" to "location"

This patch renames all occurrances of "addr_string" and "address
string" in the breakpoint/linespec APIs.  This will emphasize the
change from address strings used in setting breakpoints (et al) to the
new locations-based API introduced in subsequent patches.

gdb/ChangeLog:

* breakpoint.h (struct breakpoint_ops) <create_sals_from_address>:
Renamed to create_sals_from_location.
<decode_linespec>: Renamed to decode_location.
Update all callers.
* breakpoint.c (create_sals_from_address_default): Renamed to ...
(create_sals_from_location_default): ... this.
(addr_string_to_sals): Renamed to ...
(location_to_sals): ... this.
(decode_linespec_default): Renamed to ...
(decode_location_default): ... this.
(base_breakpoint_create_sals_from_address): Renamed to ...
(base_breakpoint_create_sals_from_location): ... this.
(bkpt_create_sals_from_address): Renamed to ...
(bkpt_create_sals_from_location): ... this.
(bkpt_decode_linespec): Renamed to ...
(bkpt_decode_location): ... this.
(bkpt_probe_create_sals_from_address): Renamed to ...
(bkpt_probe_create_sals_from_location): ... this.
(tracepoint_create_sals_from_address): Renamed to ...
(tracepoint_create_sals_from_location): ... this.
(tracepoint_decode_linespec): Renamed to ...
(tracepoint_decode_location): ... this.
(tracepoint_probe_create_sals_from_address): Renamed to ...
(tracepoint_probe_create_sals_from_location): ... this.
(tracepoint_probe_decode_linespec): Renamed to ...
(tracepoint_probe_decode_location): ... this.
(strace_marker_create_sals_from_address): Renamed to ...
(strace_marker_create_sals_from_location): ... this.
(decode_linespec_default): Renamed to ...
(decode_location_default): ... this.

Automatic date update in version.in

[AArch64] Improve BFD overflow warning message for -fpic

2015-08-11  Jiong Wang  <jiong.wang@arm.com>

bfd/
  * elfnn-aarch64.c (elfNN_aarch64_relocate_section): Improve warning
  message for R_AARCH64_LD64_GOTPAGE_LO15/R_AARCH64_LD32_GOTPAGE_LO14.

[AArch64] Commit missing testcases

[AArch64]Speed up linking speed by skipping unncessary TLS reloc type check

2015-08-11  Jiong Wang  <jiong.wang@arm.com>

bfd/
   * elfnn-aarch64.c (IS_AARCH64_TLS_RELAX_RELOC): New.
  (aarch64_can_relax_tls): Use the new IS_AARCH64_TLS_RELAX_RELOC.

[AArch64] Long branch veneer support far symbol defined by --defsym

2015-08-11  Jiong Wang  <jiong.wang@arm.com>

bfd/
  * bfd/elfnn-aarch64.c (aarch64_type_of_stub): New parameter "sym_sec".
  Loose the check for symbol from ABS section.
  (elfNN_aarch64_size_stubs): Pass sym_sec.

ld/testsuite/
  * ld-aarch64/farcall-b-defsym.s: New test.
  * ld-aarch64/farcall-bl-defsym.s: Likewise.
  * ld-aarch64/farcall-b-defsym.d: New expectation.
  * ld-aarch64/farcall-bl-defsym.d: Likewise.

[AArch64] PR18668, repair long branch veneer for plt stub

2015-08-11  Jiong Wang  <jiong.wang@arm.com>
bfd/
   PR ld/18668
   * elfnn-aarch64.c (aarch64_type_of_stub): Update destination for
   calls go through plt stub.
   (elfNN_aarch64_final_link_relocate): Adjust code logic for CALL26,
   JUMP26 relocation to support inserting veneer for call to plt stub.

ld/testsuite/
   * ld-aarch64/farcall-b-gsym.s: New test.
   * ld-aarch64/farcall-b-plt.s: Likewise.
   * ld-aarch64/farcall-bl-plt.s: Likewise.
   * ld-aarch64/farcall-b-gsym.d: New expect file.
   * ld-aarch64/farcall-b-plt.d: Likewise.
   * ld-aarch64/farcall-bl-plt.d: Likewise.

[AArch64][8/8] LD support BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12

2015-08-11  Jiong Wang  <jiong.wang@arm.com>

bfd/
  * elfnn-aarch64.c (IS_AARCH64_TLS_RELOC): Recognize
  BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12.
  (aarch64_reloc_got_type): Likewise.
  (elfNN_aarch64_final_link_relocate): Likewise.
  (elfNN_aarch64_relocate_section): Likewise.
  * elfxx-aarch64.c (_bfd_aarch64_elf_put_addend): Likewise.
  (_bfd_aarch64_elf_resolve_relocation): Likewise.

ld/testsuite/
  * ld-aarch64/emit-relocs-529.s: New testcase.
  * ld-aarch64/emit-relocs-529-overflow.s: Likewise.
  * ld-aarch64/emit-relocs-86.s: Likewise.
  * ld-aarch64/emit-relocs-86-overflow.s: Likewise.
  * ld-aarch64/emit-relocs-529.d: New expectation file.
  * ld-aarch64/emit-relocs-529-overflow.d: Likewise.
  * ld-aarch64/emit-relocs-86.d: Likewise.
  * ld-aarch64/emit-relocs-86-overflow.d: Likewise.
  * ld-aarch64/aarch64-elf.exp: Run new testcases.