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.
	* msp430-decode.opc: New.
	* msp430-decode.c: New/generated.
	* Makefile.am (TARGET_LIBOPCODES_CFILES): Add msp430-decode.c.
	(MAINTAINER_CLEANFILES): Likewise.
	Add rule to build msp430-decode.c frommsp430decode.opc
        using the opc2c program.
	* Makefile.in: Regenerate.
	* configure.in: Add msp430-decode.lo to msp430 architecture files.
	* configure: Regenerate.

	* msp430-decode.h: New.
	* configure.ac (mips*-*-bsd*, mips*-*-ultrix*, mips*-*-osf*)
	(mips*-*-ecoff*, mips*-*-pe*, mips*-*-irix* [v4 and earlier])
	(mips*-*-lnews*, mips*-*-riscos*): Add gas and ld to noconfigdirs.
	* configure: Regenerate.

gas/
	* NEWS: Note removal of ECOFF support.
	* doc/as.texinfo (--emulation): Update for the removal of MIPS ECOFF.
	* Makefile.am (TARG_ENV_HFILES): Remove config/te-lnews.h.
	(MULTI_CFILES): Remove config/e-mipsecoff.c.
	* Makefile.in: Regenerate.
	* configure.in: Remove MIPS ECOFF references.
	(mips-sony-bsd*, mips-*-bsd*, mips-*-lnews*-ecoff, mips-*-*-ecoff):
	Delete cases.
	(mips-*-irix5*-*, mips*-*-linux*-*, mips*-*-freebsd*)
	(mips*-*-kfreebsd*-gnu, mips-*-*-elf): Fold into...
	(mips-*-*): ...this single case.
	(mipsbecoff, mipslecoff, mipsecoff): Remove emulations.  Expect
	MIPS emulations to be e-mipself*.
	* configure: Regenerate.
	* configure.tgt (mips-sony-bsd*, mips-*-ultrix*, mips-*-osf*)
	(mips-*-ecoff*, mips-*-pe*, mips-*-irix*, ips-*-lnews*, mips-*-riscos*)
	(mips-*-sysv*): Remove coff and ecoff cases.
	* as.c (mipsbecoff, mipslecoff, mipsecoff): Remove.
	* ecoff.c: Remove reference to MIPS ECOFF.
	* config/e-mipsecoff.c, config/te-lnews.h: Delete files.
	* config/tc-mips.c (ECOFF_LITTLE_FORMAT): Delete.
	(RDATA_SECTION_NAME, mips_target_form): Remove COFF and ECOFF cases.
	(mips_hi_fixup): Tweak comment.
	(append_insn): Require a howto.
	(mips_after_parse_args): Remove OBJ_MAYBE_ECOFF code.

gas/testsuite/
	* gas/all/gas.exp: Remove reference to mips-ecoff.
	* gas/mips/branch-misc-1.d, gas/mips/branch-misc-2.d,
	gas/mips/branch-misc-2-64.d, gas/mips/branch-misc-2pic.d,
	gas/mips/branch-misc-2pic-64.d, gas/mips/branch-swap.d: Remove
	skips for mips-*-ecoff.

ld/
	* NEWS: Document the removal of MIPS ECOFF targets.
	* ld.texinfo (--gpsize=@var{value}): Use MIPS ELF rather than
	MIPS ECOFF as an example of a target that supports small data.
	* ldmain.c (g_switch_value): Likewise.
	* configure.tgt (mips*-*-pe, mips*-dec-ultrix*, mips*-dec-osf*)
	(mips*-sgi-irix* [v4 and earlier], mips*el-*-ecoff*, mips*-*-ecoff*)
	(mips*-*-bsd*, mips*-*-lnews*): Remove cases.
	* Makefile.am (ALL_EMULATION_SOURCES): Remove emipsbig.c, emipsbsd.c,
	emipsidt.c, emipsidtl.c, emipslit.c, emipslnews.c and emipspe.c.
	(emipsbig.c, emipsbsd.c, emipsidt.c, emipsidtl.c, emipslit.c)
	(emipslnews.c, emipspe.c): Delete rules.
	* Makefile.in: Regenerate.
	* emulparams/mipsbig.sh, emulparams/mipsbsd.sh, emulparams/mipsidt.sh,
	emulparams/mipsidtl.sh, emulparams/mipslit.sh, emulparams/mipslnews.sh,
	emulparams/mipspe.sh, emultempl/mipsecoff.em: Delete.
	* emultempl/m68kcoff.em: Update comment to say that MIPS ECOFF support
	has now been removed.
	* emultempl/pe.em: Remove TARGET_IS_mipspe checks.
include/opcode/
	* mips.h: Fix comment typo: "G" is _RS rather than _RD for microMIPS.

gas/
	* config/tc-mips.c (mips_ip): Fix swapped bit numbers in comments.
	* libc/include/sys/reent.h (_ATEXIT_INIT_PTR): Remove.
	(_REENT_INIT_ATEXIT_PTR): Remove.
	(_REENT_INIT_PTR): Reduce code size if _REENT_SMALL.
	* libc/reent/reent.c (_reclaim_reent): Free also _misc and
	_signal_buf.
* libc/include/string.h (rawmemchr): Declare.
* libc/string/Makefile.am (ELIX_4_SOURCES): Add rawmemchr.c.
(CHEWOUT_FILES): Add rawmemchr.def.
* libc/string/Makefile.in: Regenerate.
* libc/string/rawmemchr.c: New file.
* common.din (rawmemchr): Export.
* posix.sgml (std-gnu): Add rawmemchr.
* include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump.
* new-features.sgml (ov-new1.7.21): New section. Document rawmemchr.
	bfd/
	* elfxx-mips.h (_bfd_mips_elf_get_synthetic_symtab): New
	prototype.
	* elf32-mips.c (elf_backend_plt_sym_val): Remove macro.
	(bfd_elf32_get_synthetic_symtab): New macro.
	* elfxx-mips.c (plt_entry): New structure.
	(mips_elf_link_hash_entry): Add use_plt_entry member.
	(mips_elf_link_hash_table): Rename plt_entry_size member to
	plt_mips_entry_size.  Add plt_comp_entry_size, plt_mips_offset,
	plt_comp_offset, plt_got_index entries and plt_header_is_comp
	members.
	(STUB_LW_MICROMIPS, STUB_MOVE_MICROMIPS): New macros.
	(STUB_LUI_MICROMIPS, STUB_JALR_MICROMIPS): Likewise.
	(STUB_ORI_MICROMIPS, STUB_LI16U_MICROMIPS): Likewise.
	(STUB_LI16S_MICROMIPS): Likewise.
	(MICROMIPS_FUNCTION_STUB_NORMAL_SIZE): Likewise.
	(MICROMIPS_FUNCTION_STUB_BIG_SIZE): Likewise.
	(micromips_o32_exec_plt0_entry): New variable.
	(mips16_o32_exec_plt_entry): Likewise.
	(micromips_o32_exec_plt_entry): Likewise.
	(mips_elf_link_hash_newfunc): Initialize use_plt_entry.
	(mips_elf_output_extsym): Update to use gotplt_union's plist
	member rather than offset.
	(mips_elf_gotplt_index): Likewise.  Remove the VxWorks
	restriction.  Use MIPS_ELF_GOT_SIZE to calculate GOT address.
	(mips_elf_count_got_symbols): Update to use gotplt_union's plist
	member rather than offset.
	(mips_elf_calculate_relocation): Handle MIPS16/microMIPS PLT
	entries.
	(_bfd_mips_elf_create_dynamic_sections): Don't set PLT sizes
	here.
	(mips_elf_make_plt_record): New function.
	(_bfd_mips_elf_check_relocs): Update comment.  Record occurences
	of JAL relocations that might need a PLT entry.
	(_bfd_mips_elf_adjust_dynamic_symbol): Update to use
	gotplt_union's plist member rather than offset.  Set individual
	PLT entry sizes here.  Handle MIPS16/microMIPS PLT entries.
	Don't set the symbol's value in the symbol table for PLT
	references here.  Don't set the PLT or PLT GOT section sizes
	here.
	(mips_elf_estimate_stub_size): Handle microMIPS stubs.
	(mips_elf_allocate_lazy_stub): Likewise.
	(mips_elf_lay_out_lazy_stubs): Likewise.  Define a _MIPS_STUBS_
	magic symbol.
	(mips_elf_set_plt_sym_value): New function.
	(_bfd_mips_elf_size_dynamic_sections): Set PLT header size and
	PLT and PLT GOT section sizes here.  Set the symbol values in
	the symbol table for PLT references here.  Handle microMIPS
	annotation of the _PROCEDURE_LINKAGE_TABLE_ magic symbol.
	(_bfd_mips_elf_finish_dynamic_symbol): Update to use
	gotplt_union's plist member rather than offset.  Handle
	MIPS16/microMIPS PLT entries.  Handle microMIPS stubs.
	(_bfd_mips_vxworks_finish_dynamic_symbol): Update to use
	gotplt_union's plist member rather than offset.  Use
	MIPS_ELF_GOT_SIZE to calculate GOT address.
	(mips_finish_exec_plt): Handle microMIPS PLT.  Return status.
	(_bfd_mips_elf_finish_dynamic_sections): Handle result from
	mips_finish_exec_plt.
	(_bfd_mips_elf_link_hash_table_create): Update to use
	gotplt_union's plist member rather than offset.
	(_bfd_mips_elf_get_synthetic_symtab): New function.

	include/elf/
	* mips.h (ELF_ST_IS_MIPS_PLT): Respect STO_MIPS16 setting.
	(ELF_ST_SET_MIPS_PLT): Likewise.

	gdb/
	* mips-tdep.c (mips_elf_make_msymbol_special): Handle MIPS16 and
	microMIPS synthetic symbols.

	ld/
	* emulparams/elf32btsmip.sh: Arrange for .got.plt to be placed
	as close to .plt as possible.
	* scripttempl/elf.sc: Handle $INITIAL_READWRITE_SECTIONS and
	$PLT_NEXT_DATA variables.

	ld/testsuite/
	* ld-mips-elf/jalx-2.dd: Update for microMIPS PLT support.
	* ld-mips-elf/pic-and-nonpic-3a.dd: Update for the _MIPS_STUBS_
	magic symbol.
	* ld-mips-elf/pic-and-nonpic-3b.dd: Likewise.
	* ld-mips-elf/pic-and-nonpic-6-n32.dd: Likewise.
	* ld-mips-elf/pic-and-nonpic-6-n64.dd: Likewise.
	* ld-mips-elf/pic-and-nonpic-6-o32.dd: Likewise.
	* ld-mips-elf/stub-dynsym-1-10000.d: Likewise.
	* ld-mips-elf/stub-dynsym-1-2fe80.d: Likewise.
	* ld-mips-elf/stub-dynsym-1-7fff.d: Likewise.
	* ld-mips-elf/stub-dynsym-1-8000.d: Likewise.
	* ld-mips-elf/stub-dynsym-1-fff0.d: Likewise.
	* ld-mips-elf/tlslib-o32.d: Likewise.

	opcodes/
	* mips-dis.c (is_mips16_plt_tail): New function.
	(print_insn_mips16): Handle MIPS16 PLT entry's GOT slot address
	word.
	(is_compressed_mode_p): Handle MIPS16/microMIPS PLT entries.