Move tilegx, tilepro, and linux-generic from ports to libc.

I've moved the TILE-Gx and TILEPro ports to the main sysdeps hierarchy,
along with the linux-generic ports infrastructure.  Beyond the README
update, the move was just

    git mv ports/sysdeps/tile sysdeps/tile
    git mv ports/sysdeps/unix/sysv/linux/tile \
      sysdeps/unix/sysv/linux/tile
    git mv ports/sysdeps/unix/sysv/linux/generic \
      sysdeps/unix/sysv/linux/generic

I updated the relevant ChangeLogs along the lines of the ARM move
in commit c6bfe5c4d75 and tested the 64-bit tilegx build to confirm that
there were no changes in "objdump -dr" output in the shared objects.

1 files changed, 0 insertions, 110 deletions

diff --git a/ports/sysdeps/tile/sysdep.h b/ports/sysdeps/tile/sysdep.h
deleted file mode 100644
index 32aca49ff1..0000000000
--- a/ports/sysdeps/tile/sysdep.h
+++ /dev/null
@@ -1,110 +0,0 @@
-/* Copyright (C) 2011-2014 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library.  If not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#include <sysdeps/generic/sysdep.h>
-#include <bits/wordsize.h>
-#include <arch/abi.h>
-
-#if defined __ASSEMBLER__ || defined REQUEST_ASSEMBLER_MACROS
-
-#include <feedback.h>
-
-/* Make use of .size directive.  */
-#define ASM_SIZE_DIRECTIVE(name) .size name,.-name;
-
-/* Define an entry point visible from C.  */
-#define	ENTRY(name)							      \
-  .globl C_SYMBOL_NAME(name);						      \
-  .type C_SYMBOL_NAME(name),@function;					      \
-  .align 8;								      \
-  C_LABEL(name)								      \
-  cfi_startproc;							      \
-  CALL_MCOUNT
-
-#undef	END
-#define END(name)							      \
-  cfi_endproc;								      \
-  ASM_SIZE_DIRECTIVE(name)
-
-/* Since C identifiers are not normally prefixed with an underscore
-   on this system, the asm identifier `syscall_error' intrudes on the
-   C name space.  Make sure we use an innocuous name.  */
-#define	syscall_error	__syscall_error
-#define mcount		__mcount
-
-/* If compiled for profiling, call `mcount' at the start of each function.
-   The mcount code requires the caller PC in r10.  The `mcount' function
-   sets lr back to the value r10 had on entry when it returns.  */
-#ifdef	PROF
-#define CALL_MCOUNT { move r10, lr; jal mcount }
-#else
-#define CALL_MCOUNT             /* Do nothing.  */
-#endif
-
-/* Local label name for asm code. */
-#define L(name)		.L##name
-
-/* Specify the size in bytes of a machine register.  */
-#ifdef __tilegx__
-#define REGSIZE		8
-#else
-#define REGSIZE		4
-#endif
-
-/* Support a limited form of shared assembly between tilepro and tilegx.
-   The presumption is that LD/ST are used for manipulating registers.
-   Since opcode parsing is case-insensitive, we don't need to provide
-   definitions for these on tilegx.  */
-#ifndef __tilegx__
-#define LD		lw
-#define LD4U		lw
-#define ST		sw
-#define ST4		sw
-#define BNEZ		bnz
-#define BEQZ		bz
-#define BEQZT		bzt
-#define BGTZ		bgz
-#define CMPEQI		seqi
-#define CMPEQ		seq
-#define CMOVEQZ		mvz
-#define CMOVNEZ		mvnz
-#endif
-
-/* Provide "pointer-oriented" instruction variants.  These differ not
-   just for tilepro vs tilegx, but also for tilegx -m64 vs -m32.  */
-#if defined __tilegx__ && __WORDSIZE == 32
-#define ADD_PTR		addx
-#define ADDI_PTR	addxi
-#define ADDLI_PTR	addxli
-#define LD_PTR		ld4s
-#define ST_PTR		st4
-#define SHL_PTR_ADD	shl2add
-#else
-#define ADD_PTR		add
-#define ADDI_PTR	addi
-#define ADDLI_PTR	addli
-#define LD_PTR		LD
-#define ST_PTR		ST
-#ifdef __tilegx__
-#define SHL_PTR_ADD	shl3add
-#else
-#define SHL_PTR_ADD	s2a
-#endif
-#endif
-
-#endif /* __ASSEMBLER__ */