termios: Consolidate Output Modes definitions

This patch consolidates the termios symbolic constants used for ouput
modes with c_oflag member on its own header.  The Linux generic implementation
values match the kernel UAPI and each architecture with deviate values
have their own implementation (in this case alpha, powerpc, and sparc).

No semantic change is expected, checked on a build against x86_64-linux-gnu,
alpha-linux-gnu, mips64-linux-gnu, and sparc64-linux-gnu.

	* sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Add
	termios-c_oflag.h.
	* sysdeps/unix/sysv/linux/bits/termios-c_oflag.h: New file.
	* sysdeps/unix/sysv/linux/alpha/bits/termios-c_oflag.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/bits/termios-c_oflag.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/bits/termios-c_oflag.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/termios.h (OPOST, OLCUC, ONLCR, OCRNL,
	ONOCR, ONLRET, OFILL, OFDEL, VTDLY, VT0, VT1):  Move to
	termios-c_oflag.h.
	[__USE_MISC || __USE_XOPEN] (NLDLY, NL0, NL1, CRDLY, CR0, CR1, CR2,
	CR3, TABDLY, TAB0, TAB1, TAB2, TAB3, BSDLY, BS0, BS1, FFDLY, FF0,
	FFR1): Likewise.
	[USE_MISC] (XTABS): Likewise.
	* sysdeps/unix/sysv/linux/alpha/bits/termios.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/termios.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/bits/termios.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/bits/termios.h Likewise.

2 files changed, 67 insertions, 45 deletions

diff --git a/sysdeps/unix/sysv/linux/alpha/bits/termios-c_oflag.h b/sysdeps/unix/sysv/linux/alpha/bits/termios-c_oflag.h
new file mode 100644
index 0000000000..8961792769
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/alpha/bits/termios-c_oflag.h
@@ -0,0 +1,66 @@
+/* termios output mode definitions.  Linux/alpha version.
+   Copyright (C) 2019 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   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/>.  */
+
+#ifndef _TERMIOS_H
+# error "Never include <bits/termios-c_oflag.h> directly; use <termios.h> instead."
+#endif
+
+/* c_oflag bits */
+#define OPOST	0000001
+#define ONLCR	0000002
+#define OLCUC	0000004
+
+#define OCRNL	0000010
+#define ONOCR	0000020
+#define ONLRET	0000040
+
+#define OFILL	00000100
+#define OFDEL	00000200
+#if defined __USE_MISC || defined __USE_XOPEN
+# define NLDLY	00001400
+# define   NL0	00000000
+# define   NL1	00000400
+# if defined __USE_MISC
+#  define   NL2	00001000
+#  define   NL3	00001400
+# endif
+# define TABDLY	00006000
+# define   TAB0	00000000
+# define   TAB1	00002000
+# define   TAB2	00004000
+# define   TAB3	00006000
+# define CRDLY	00030000
+# define   CR0	00000000
+# define   CR1	00010000
+# define   CR2	00020000
+# define   CR3	00030000
+# define FFDLY	00040000
+# define   FF0	00000000
+# define   FF1	00040000
+# define BSDLY	00100000
+# define   BS0	00000000
+# define   BS1	00100000
+#endif
+
+#define VTDLY	00200000
+#define   VT0	00000000
+#define   VT1	00200000
+
+#ifdef __USE_MISC
+# define XTABS	TAB3
+#endif
diff --git a/sysdeps/unix/sysv/linux/alpha/bits/termios.h b/sysdeps/unix/sysv/linux/alpha/bits/termios.h
index a48a4b45d5..9f39f75e6c 100644
--- a/sysdeps/unix/sysv/linux/alpha/bits/termios.h
+++ b/sysdeps/unix/sysv/linux/alpha/bits/termios.h
@@ -27,51 +27,7 @@ typedef unsigned int	tcflag_t;
 #include <bits/termios-struct.h>
 #include <bits/termios-c_cc.h>
 #include <bits/termios-c_iflag.h>
-
-/* c_oflag bits */
-#define OPOST	0000001
-#define ONLCR	0000002
-#define OLCUC	0000004
-
-#define OCRNL	0000010
-#define ONOCR	0000020
-#define ONLRET	0000040
-
-#define OFILL	00000100
-#define OFDEL	00000200
-#if defined __USE_MISC || defined __USE_XOPEN
-# define NLDLY	00001400
-# define   NL0	00000000
-# define   NL1	00000400
-# if defined __USE_MISC
-#  define   NL2	00001000
-#  define   NL3	00001400
-# endif
-# define TABDLY	00006000
-# define   TAB0	00000000
-# define   TAB1	00002000
-# define   TAB2	00004000
-# define   TAB3	00006000
-# define CRDLY	00030000
-# define   CR0	00000000
-# define   CR1	00010000
-# define   CR2	00020000
-# define   CR3	00030000
-# define FFDLY	00040000
-# define   FF0	00000000
-# define   FF1	00040000
-# define BSDLY	00100000
-# define   BS0	00000000
-# define   BS1	00100000
-#endif
-
-#define VTDLY	00200000
-#define   VT0	00000000
-#define   VT1	00200000
-
-#ifdef __USE_MISC
-# define XTABS	TAB3
-#endif
+#include <bits/termios-c_oflag.h>
 
 /* c_cflag bit meaning */
 #ifdef __USE_MISC