Relocate alpha from ports to libc

Also fixed the following whitespace nits to satisfy the push:

sysdeps/alpha/alphaev6/memset.S:142: space before tab in indent.
sysdeps/alpha/configure:1: new blank line at EOF.
sysdeps/alpha/fpu/e_sqrt.c:126: space before tab in indent.
sysdeps/alpha/preconfigure:1: new blank line at EOF.
sysdeps/unix/sysv/linux/alpha/syscalls.list:1: new blank line at EOF.

1 files changed, 85 insertions, 0 deletions

diff --git a/sysdeps/alpha/start.S b/sysdeps/alpha/start.S
new file mode 100644
index 0000000000..cf195c1c44
--- /dev/null
+++ b/sysdeps/alpha/start.S
@@ -0,0 +1,85 @@
+/* Startup code for Alpha/ELF.
+   Copyright (C) 1993-2014 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Richard Henderson <rth@tamu.edu>
+
+   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.
+
+   In addition to the permissions in the GNU Lesser General Public
+   License, the Free Software Foundation gives you unlimited
+   permission to link the compiled version of this file with other
+   programs, and to distribute those programs without any restriction
+   coming from the use of this file. (The GNU Lesser General Public
+   License restrictions do apply in other respects; for example, they
+   cover modification of the file, and distribution when not linked
+   into another program.)
+
+   Note that people who make modified versions of this file are not
+   obligated to grant this special exception for their modified
+   versions; it is their choice whether to do so. The GNU Lesser
+   General Public License gives permission to release a modified
+   version without this exception; this exception also makes it
+   possible to release a modified version which carries forward this
+   exception.
+
+   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 <sysdep.h>
+
+	.text
+	.align 3
+	.globl _start
+	.ent _start, 0
+	.type _start,@function
+_start:
+	.frame	$15, 0, $15
+	br	gp, 1f
+1:	ldgp	gp, 0(gp)
+	subq	sp, 16, sp
+	mov	0, $15
+	.prologue 0
+
+  /* Load address of the user's main function.  */
+	lda	a0, main
+
+	ldl	a1, 16(sp)	/* get argc */
+	lda	a2, 24(sp)	/* get argv */
+
+  /* Load address of our own entry points to .fini and .init.  */
+	lda	a3, __libc_csu_init
+	lda	a4, __libc_csu_fini
+
+  /* Store address of the shared library termination function.  */
+	mov	v0, a5
+
+  /* Provide the highest stack address to the user code.  */
+	stq	sp, 0(sp)
+
+  /* Call the user's main function, and exit with its value.
+     But let the libc call main.  */
+	jsr	ra, __libc_start_main
+
+  /* Die very horribly if exit returns.  Call_pal hlt is callable from
+     kernel mode only; this will result in an illegal instruction trap.  */
+	call_pal 0
+	.end _start
+
+/* For ECOFF backwards compatibility. */
+weak_alias (_start, __start)
+
+/* Define a symbol for the first piece of initialized data.  */
+	.data
+	.globl __data_start
+__data_start:
+	.weak data_start
+	data_start = __data_start