Fix add-auto-load-safe-path typo.

gdb/doc/ChangeLog
2014-11-30  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* gdb.texinfo (Auto-loading safe path): Fix add-auto-load-safe-path
	description typo.
Add add-auto-load-scripts-directory.

There is already "add-auto-load-safe-path" which works
like "set auto-load safe-path" but in append mode.

There was missing an append equivalent for "set auto-load scripts-directory".

ABRT has directory /var/cache/abrt-di/ as an alternative one
to /usr/lib/debug/ . Therefore ABRT needs to use -iex parameters to add this
/var/cache/abrt-di/ directory as a first-class debuginfo directory.
Using absolute "set auto-load scripts-directory" would hard-code the path
possibly overriding local system directory additions; besides it would not be
nice anyway.

gdb/ChangeLog
2014-11-30  Jan Kratochvil  <jan.kratochvil@redhat.com>

	Add add-auto-load-scripts-directory.
	* NEWS (Changes since GDB 7.8): Add add-auto-load-scripts-directory.
	* auto-load.c (add_auto_load_dir): New function.
	(_initialize_auto_load): Install it.

gdb/doc/ChangeLog
2014-11-30  Jan Kratochvil  <jan.kratochvil@redhat.com>

	Add add-auto-load-scripts-directory.
	* gdb.texinfo (Auto-loading): Add add-auto-load-scripts-directory link.
	(objfile-gdbdotext file): Add add-auto-load-scripts-directory.
Automatic date update in version.in
Don't enable gdbtk in testsuite

When I skim configure.ac and Makefile.in in gdb/testsuite, I happen to
see that directory gdb.gdbtk is added to subdirs, however it doesn't
exist.  gdb/testsuite/gdb.gdbtk was removed by the patch below,

  [rfa] git repo fixup: delete gdb/testsuite/gdb.gdbtk
  http://thread.gmane.org/gmane.comp.gdb.patches/61489

and we should cleanup configure.ac accordingly.

gdb/testsuite:

2014-12-01  Yao Qi  <yao@codesourcery.com>

	* configure.ac: Remove AC_ARG_ENABLE for gdbtk.  Don't invoke
	AC_CONFIG_SUBDIRS(gdb.gdbtk).
	* configure: Re-generated.
Add checks for memory access violations exposed by fuzzed archives.

	PR binutils/17531
	* dwarf.c (process_cu_tu_index): Check for an out of range row
	index.
	* elfcomm.c (adjust_relative_path): Change name_len parameter to
	an unsigned long.  Check for path length overflow.
	(process_archive_index_and_symbols): Check for invalid header
	size.
	(setup_archive): Add checks for invalid archives.
	(get_archive_member_name): Add range checks.
	* elfcomm.h (adjust_relative_path): Update prototyoe.
	* readelf.c (process_archive): Add range checks.
Use core regset iterators on GNU Hurd

Remove native-only core file handling on GNU Hurd.  Instead, enable the
x86 target generic core regset logic on the Hurd by providing an
appropriate register offset map.

Thanks to Samuel Thibault for testing!

gdb/

	* config/i386/i386gnu.mh (NATDEPFILES): Remove core-regset.o.
	* i386gnu-nat.c: Do not include <sys/procfs.h> or "gregset.h".
	(CREG_OFFSET, creg_offset, CREG_ADDR): Remove.
	(supply_gregset, supply_fpregset): Remove.
	* i386gnu-tdep.c (i386gnu_gregset_reg_offset): New variable.
	(i386gnu_init_abi): Set tdep->gregset_reg_offset, gregset_num_regs,
	and sizeof_gregset.
Fix Python help() test for Python 3

The message displayed when using help() changed a bit with time, so this
adjusts the test accordingly.

gdb/testsuite/ChangeLog:

	* gdb.python/python.exp: Change expected reply to help().
Add tests for PR ld/16452 and PR ld/16457

	PR ld/16452
	PR ld/16457
	* ld-elf/pr16452.map: New file.
	* ld-elf/pr16452.od: Likewise.
	* ld-elf/pr16452a.c: Likewise.
	* ld-elf/pr16452b.c: Likewise.
	* ld-elf/pr16457.od: Likewise.

	* ld-elf/shared.exp (build_tests): Add tests for PR ld/16452 and
	PR ld/16457.
Remove duplicate comment

gdb/ChangeLog:

	* objfiles.c (allocate_objfile): Remove duplicate comment.
More fixes for memory access violations exposed by fuzzed binaries.

	PR binutils/17512
	* dwarf.h (struct dwarf_section): Add user_data field.
	* dwarf.c (frame_need_space): Check for an over large register
	number.
	(display_debug_frames): Check the return value from
	frame_need_space.  Check for a CFA expression that is so long the
	start address wraps around.
	(debug_displays): Initialise the user_data field.
	* objdump.c (load_specific_debug_section): Save the BFD section
	pointer in the user_data field of the dwarf_section structure.
	(free_debug_section): Update BFD section data when freeing section
	contents.
	* readelf.c (load_specific_debug_section): Initialise the
	user_data field.

	* archive.c (do_slurp_coff_armap): Add range checks to prevent
	running off the end of the string table.
	* compress.c (bfd_get_full_section_contents): Return a NULL
	pointer for zero sized sections.  Do not attempt to copy a buffer
	onto itself.
	* elf-attrs.c (_bfd_elf_parse_attributes): Check for an empty
	header.  Add range checks to avoid running off the end of the
	section.
	* elf.c (bfd_elf_get_str_section): Seek before allocating so that
	if the seek fails, no memory is allocated.
	(bfd_elf_string_from_elf_section): Do not allocate a string from a
	non string section.  It only leads to trouble later on.
	(_bfd_elf_print_private_bfd_data): Check for there being too
	little external dynamic data.
	(bfd_section_from_shdr): Replace assertion with a failure mode.
	(bfd_section_from_shdr): When walking a loaded group section use
	the internal structure size, not the external size.  Check for the
	group section being empty.
	* elf32-i386.c (elf_i386_rtype_to_howto): Replace assertion with a
	failure mode.
	* elfcode.h (elf_slurp_reloc_table): Likewise.
	* reloc.c (bfd_perform_relocation): Avoid seg-fault if the howto
	parameter is NULL.
Properly check for an out of range row index

	* dwarf.c (process_cu_tu_index): Properly check for an out of
	range row index.
Fix extraneous warning about executable stack.

PR gold/17578 notes that gold will print a warning about an executable stack
when the -z execstack option is given, even when there is no --warn_execstack
option. The warning is completely useless and unexpected, since the user
explicitly requested an executable stack, and did not even ask for warnings.

This patch fixes that, and adds an extra warning when --warn_execstack
and -z noexecstack are both given and an input file requires an executable
stack.

gold/
	PR gold/17578
	* layout.cc (Layout::layout_gnu_stack): Don't warn when -z execstack
	is given.
	(Layout::create_executable_stack_info): Warn when -z noexecstack is
	given but some inputs require executable stack.
Add support for -z global.

gold/
	* layout.cc (Layout::finish_dynamic_section): When '-z global'
	is specified set DF_1_GLOBAL in DT_FLAGS_1 flags.
	* options.h (General_options): New -z option (global).
Automatic date update in version.in
S390: Fix 'expedite' for s390-te-linux64

Fix a typo in the expedited registers for s390-te-linux64.

gdb/ChangeLog:

	* features/Makefile (s390-te-linux64-expedite): Replace
	non-existant r14 and r15 by r14l and r15l, respectively.
	* regformats/s390-te-linux64.dat: Regenerate.
ppc64_elf_edit_opd revamp

This patch sorts .opd relocs (see pr17666) and allows .opd sections
with a mix of 16 and 24 byte entries to be edited.

	* elf64-ppc.c (OPD_NDX): Define.  Use throughout for sizing/indexing
	_opd_sec_data array, halving required memory.
	(sort_r_offset): New function.
	(ppc64_elf_edit_opd): Sort incoming relocs.  Accept .opd
	sections with a mix of 16 and 24 byte OPD entries.  Don't
	attempt to honour --non-overlapping-opd for .opd sections with
	unexpected relocs.  Simplify opd entry size calculations by
	first finding the reloc for the next entry.  Make edit loop
	handle one opd entry per iteration, with an inner loop
	handling relocs per entry.
[MIPS] When calculating a relocation using an undefined weak symbol don't check for overflow.

In MIPS the relocation calculation only ignores the overflow checks for undefined
weak symbols on relocations associated with j/jal.   This patch extends this to
the relocations used by the: b* instructions; pc/gp relative symbol offsets; and the
lwpc/ldpc MIPS r6 instructions.

bfd/
	* elfxx-mips.c (mips_elf_calculate_relocation): Only check for overflow
	on non-weak undefined symbols.

ld/testsuite/
	* ld-mips-elf/mips-elf.exp: Add in undefined weak overflow tests for
	o32, n32 and n64.
	* ld-mips-elf/undefweak-overflow.s: New test.
	* ld-mips-elf/undefweak-overflow.d: New test.
	* ld-mips-elf/undefweak-overflow-n32.d: New test.
	* ld-mips-elf/undefweak-overflow-n64.d: New test.
execl-update-breakpoints.exp: Move whole segment instead of .text section

The test case builds two copies of the program, one with the compile
option "ldflags=-Wl,-Ttext=0x1000000" and the other with the address
changed to 0x2000000.  However, when linking with ld.bfd, the
resulting executables crash early in ld.so on S390 and i386.

Analysis of the crash: The default linker script establishes a certain
order of loadable sections, and the option "-Ttext" effectively splits
these into an "unaffected" lot (everything before .text) and an
"affected" lot.  The affected lot is placed at the given address,
whereas the unaffected lot stays at its default address.  The
unaffected lot starts at an aligned address plus Elf header sizes,
which is good if it is the first LOAD segment (like on AMD64).  But if
the affected lot comes first instead (like on S390 and i386), the PHDR
doesn't fit there and is placed *outside* any LOAD segments.  Then the
PHDR is not mapped when the loader gets control, and the loader runs
into a segmentation fault while trying to access it.

Since we are lucky about the order of segments on AMD64, the test
succeeds there, but the resulting binaries are unusually large -- 2.1M
each, with lots of padding within.

When replacing '-Ttext' by '-Ttext-segment', the linker moves all
segments consistently, the binaries have normal sizes, and the test
case succeeds on all mentioned platforms.

Since old versions of the gold linker don't support '-Ttext-segment',
the patch also adds logic for falling back to '-Ttext'.

gdb/testsuite/ChangeLog:

	* gdb.base/execl-update-breakpoints.exp: Specify the link address
	with '-Ttext-segment' instead of '-Ttext'.  Fall back to '-Ttext'
	if the linker doesn't understand this.
	* MAINTAINERS: Fix my email address.
python/py-infthread.c: Whitespace fixes.

gdb/ChangeLog:

	* python/py-infthread.c: Whitespace fixes.