* dcrt0.cc (child_info_fork::alloc_stack): Don't subtract 4096 from stack
pointer since getstack() already does that.
	* faq-using.xml (faq.using.multiple-copies): Modernize to reflect
	installation separation since Cygwin 1.7.
	(faq.using.third-party.multiple-copies): Ditto.
aarch64: Revert AArch64 ifunc changes.

The AArch64 ifunc patch introduced a regression caused by incorrect
PLT layout. Revert it until a fix is verified.

bfd/ChangeLog:

2013-06-19  Will Newton  <will.newton@linaro.org>

	* configure: Regenerated.
	* configure.in: Remove aarch64 dependency on elf-ifunc.c.
	* elf64-aarch64.c: Remove objalloc.h include.
	(elf64_aarch64_howto_dynrelocs): Remove R_AARCH64_IRELATIVE howto.
	(struct elf64_aarch64_link_hash_table): Remove ifunc related
	members. (elf_aarch64_local_htab_hash): Remove function.
	(elf_aarch64_local_htab_eq): Remove function.
	(elf_aarch64_get_local_sym_hash): Remove function.
	(elf64_aarch64_link_hash_table_create): Remove local hash
	table initialization.
	(elf64_aarch64_final_link_relocate): Remove sym argument and
	handling of ifunc symbols.
	(elf64_aarch64_relocate_section): Don't pass sym argument to
	elf64_aarch64_final_link_relocate.
	(elf64_aarch64_gc_sweep_hook): Remove handling of ifunc symbols.
	(elf64_aarch64_adjust_dynamic_symbol): Likewise.
	(elf64_aarch64_check_relocs): Likewise.
	(elf64_aarch64_post_process_headers): Remove call to
	_bfd_elf_set_osabi.
	(elf64_aarch64_is_function_type): New function.
	(elf64_aarch64_allocate_dynrelocs): Remove handling of ifunc
	symbols. (elf_aarch64_allocate_local_dynrelocs): Remove function.
	(elf64_aarch64_size_dynamic_sections): Remove call to
	elf_aarch64_allocate_local_dynrelocs.
	(elf64_aarch64_create_small_pltn_entry): Remove info argument.
	Remove creation of R_AARCH64_IRELATIVE dynamic relocs.
	(elf64_aarch64_finish_dynamic_symbol): Remove handling of ifunc
	symbols. (elf_aarch64_finish_local_dynamic_symbol): Remove
	function. (elf64_aarch64_finish_dynamic_sections): Remove call to
	elf_aarch64_finish_local_dynamic_symbol.
	(elf64_aarch64_add_symbol_hook): Remove function.

include/elf/ChangeLog:

2013-06-19  Will Newton  <will.newton@linaro.org>

	* aarch64.h: Remove R_AARCH64_IRELATIVE.

ld/ChangeLog:

2013-06-19  Will Newton  <will.newton@linaro.org>

	* emulparams/aarch64elf.sh: Remove IREL_IN_PLT.

ld/testsuite/ChangeLog:

2013-06-19  Will Newton  <will.newton@linaro.org>

	* ld-aarch64/aarch64-elf.exp: Remove ifunc tests.
	* ld-ifunc/ifunc.exp: Disable ifunc tests on AArch64.
	* ld-aarch64/ifunc-1-local.d: Remove.
	* ld-aarch64/ifunc-1-local.s: Likewise.
	* ld-aarch64/ifunc-1.d: Likewise.
	* ld-aarch64/ifunc-1.s: Likewise.
	* ld-aarch64/ifunc-10.d: Likewise.
	* ld-aarch64/ifunc-10.s: Likewise.
	* ld-aarch64/ifunc-11.d: Likewise.
	* ld-aarch64/ifunc-11.s: Likewise.
	* ld-aarch64/ifunc-12.d: Likewise.
	* ld-aarch64/ifunc-12.s: Likewise.
	* ld-aarch64/ifunc-13.d: Likewise.
	* ld-aarch64/ifunc-13a.s: Likewise.
	* ld-aarch64/ifunc-13b.s: Likewise.
	* ld-aarch64/ifunc-14a.d: Likewise.
	* ld-aarch64/ifunc-14a.s: Likewise.
	* ld-aarch64/ifunc-14b.d: Likewise.
	* ld-aarch64/ifunc-14b.s: Likewise.
	* ld-aarch64/ifunc-14c.d: Likewise.
	* ld-aarch64/ifunc-14c.s: Likewise.
	* ld-aarch64/ifunc-14d.d: Likewise.
	* ld-aarch64/ifunc-14e.d: Likewise.
	* ld-aarch64/ifunc-14f.d: Likewise.
	* ld-aarch64/ifunc-15.d: Likewise.
	* ld-aarch64/ifunc-15.s: Likewise.
	* ld-aarch64/ifunc-16.d: Likewise.
	* ld-aarch64/ifunc-16.s: Likewise.
	* ld-aarch64/ifunc-17a.d: Likewise.
	* ld-aarch64/ifunc-17a.s: Likewise.
	* ld-aarch64/ifunc-17b.d: Likewise.
	* ld-aarch64/ifunc-17b.s: Likewise.
	* ld-aarch64/ifunc-18a.d: Likewise.
	* ld-aarch64/ifunc-18a.s: Likewise.
	* ld-aarch64/ifunc-18b.d: Likewise.
	* ld-aarch64/ifunc-18b.s: Likewise.
	* ld-aarch64/ifunc-19a.d: Likewise.
	* ld-aarch64/ifunc-19a.s: Likewise.
	* ld-aarch64/ifunc-19b.d: Likewise.
	* ld-aarch64/ifunc-19b.s: Likewise.
	* ld-aarch64/ifunc-2-local.d: Likewise.
	* ld-aarch64/ifunc-2-local.s: Likewise.
	* ld-aarch64/ifunc-2.d: Likewise.
	* ld-aarch64/ifunc-2.s: Likewise.
	* ld-aarch64/ifunc-20.d: Likewise.
	* ld-aarch64/ifunc-20.s: Likewise.
	* ld-aarch64/ifunc-3.s: Likewise.
	* ld-aarch64/ifunc-3a.d: Likewise.
	* ld-aarch64/ifunc-3b.d: Likewise.
	* ld-aarch64/ifunc-4.d: Likewise.
	* ld-aarch64/ifunc-4.s: Likewise.
	* ld-aarch64/ifunc-4a.d: Likewise.
	* ld-aarch64/ifunc-5-local.s: Likewise.
	* ld-aarch64/ifunc-5.s: Likewise.
	* ld-aarch64/ifunc-5a-local.d: Likewise.
	* ld-aarch64/ifunc-5a.d: Likewise.
	* ld-aarch64/ifunc-5b-local.d: Likewise.
	* ld-aarch64/ifunc-5b.d: Likewise.
	* ld-aarch64/ifunc-5r-local.d: Likewise.
	* ld-aarch64/ifunc-6.s: Likewise.
	* ld-aarch64/ifunc-6a.d: Likewise.
	* ld-aarch64/ifunc-6b.d: Likewise.
	* ld-aarch64/ifunc-7.s: Likewise.
	* ld-aarch64/ifunc-7a.d: Likewise.
	* ld-aarch64/ifunc-7b.d: Likewise.
	* ld-aarch64/ifunc-7c.d: Likewise.
	* ld-aarch64/ifunc-8.d: Likewise.
	* ld-aarch64/ifunc-8a.s: Likewise.
	* ld-aarch64/ifunc-8b.s: Likewise.
	* ld-aarch64/ifunc-9.d: Likewise.
	* ld-aarch64/ifunc-9.s: Likewise.
* spawn.cc (child_info_spawn::worker): Eliminate wascygexec.
	* nlsfuncs.cc (__collate_range_cmp): Convert input to wchar_t and call
	wcscoll since all calling functions are using wide chars.  Explain in
	preceeding comment.
	* libc/posix/readdir_r.c: Fix potential read past dirp->dd_buf.
	* acconfig.h (_UNBUF_STREAM_OPT): Undefine.
	* newlib.hin (_UNBUF_STREAM_OPT): Undefine.
	* configure.in (--enable-newlib-unbuf-stream-opt): New option.
	* configure: Regenerate.
	* libc/stdio/vfprintf.c (_VFPRINTF_R): Don't do optimization on
	unbuffered stream files.
	* libc/stdio/vfwprintf.c (_VFWPRINTF_R): Likewise.
	* README: Add description about the option.
	* newlib.hin (_UNBUF_STREAM_OPT): Undefine.
	* configure.in (--enable-newlib-unbuf-stream-opt): New option.
	* configure: Regenerate.
	* libc/stdio/vfprintf.c (_VFPRINTF_R): Don't do optimization on
	unbuffered stream files.
	* libc/stdio/vfwprintf.c (_VFWPRINTF_R): Likewise.
	* README: Add description about the option.
* spawn.cc (child_info_spawn::worker): Eliminate call to newargv.set() in favor
of conglomerated newargv.setup().  Let newargv.setup() decide when to call
dup_all().  Only set argc and argv for cygwin processes.
(av::setup): Rename from av::fixup.  Accept argc and argv parameters.  Fill out
argv and argc here.  Duplicate whole argv structure when this is a Cygwin
executable.
* winf.cc (linebuf::fromargv): Don't bother duplicating argv elements since
they will never be used.
* winf.h (av::set): Delete.
(av::setup): Rename from av::fixup.  Add two parameters.
(av::replace0_maybe): Assign calloced to 1 rather than 'true' for clarity.
(av::dup_maybe): Delete.
(av::dup_all): Set calloced to show that we have duplicated all of the
arguments in the list.
*** empty log message ***
Fix ChangeLog entry
* winf.h (av::unshift): Make __reg2.
	* faq-using.xml (faq.using.private-cygwin): Drop.
	* path.cc (cygwin_conv_path): Handle NULL "from" path gracefully.
	* path.sgml (func-cygwin-conv-path): Document returning EINVAL if
	"from" is NULL.
newlib/MAINTAINERS: Add myself to Write After Approval.

2013-06-21  Will Newton  <will.newton@linaro.org>

	* MAINTAINERS: Add Will Newton to Write After Approval.
strlen-armv7.S: Import latest strlen cortex-strings code.

Import the latest version of strlen from the Linaro cortex-strings
package. This version is faster across a variety of block size and
alignments on ARMv7.

newlib/ChangeLog:

2013-06-21  Will Newton  <will.newton@linaro.org>

	* libc/machine/arm/strlen-armv7.S: Import latest strlen
	code from Linaro cortex-strings.