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, 119 insertions, 0 deletions

diff --git a/sysdeps/alpha/setjmp.S b/sysdeps/alpha/setjmp.S
new file mode 100644
index 0000000000..f79837c86b
--- /dev/null
+++ b/sysdeps/alpha/setjmp.S
@@ -0,0 +1,119 @@
+/* Copyright (C) 1992-2014 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/>.  */
+
+#define __ASSEMBLY__
+
+#include <sysdep.h>
+#include <jmpbuf-offsets.h>
+
+	.ent __sigsetjmp
+	.global __sigsetjmp
+__sigsetjmp:
+	ldgp    gp, 0(pv)
+
+$sigsetjmp_local:
+#ifndef PIC
+#define FRAME	16
+	subq    sp, FRAME, sp
+	.frame  sp, FRAME, ra, 0
+	stq     ra, 0(sp)
+	.mask   0x04000000, -FRAME
+#else
+#define FRAME	0
+	.frame	sp, FRAME, ra, 0
+#endif
+#ifdef PROF
+	.set noat
+	lda	AT, _mcount
+	jsr	AT, (AT), _mcount
+	.set at
+#endif
+	.prologue 1
+
+	stq	s0, JB_S0*8(a0)
+	stq	s1, JB_S1*8(a0)
+	stq	s2, JB_S2*8(a0)
+	stq	s3, JB_S3*8(a0)
+	stq	s4, JB_S4*8(a0)
+	stq	s5, JB_S5*8(a0)
+#ifdef PTR_MANGLE
+	PTR_MANGLE(t1, ra, t0)
+	stq	t1, JB_PC*8(a0)
+#else
+	stq	ra, JB_PC*8(a0)
+#endif
+#if defined(PTR_MANGLE) && FRAME == 0
+	PTR_MANGLE2(t1, sp, t0)
+#else
+	addq	sp, FRAME, t1
+# ifdef PTR_MANGLE
+	PTR_MANGLE2(t1, t1, t0)
+# endif
+#endif
+	stq	t1, JB_SP*8(a0)
+#ifdef PTR_MANGLE
+	PTR_MANGLE2(t1, fp, t0)
+	stq	t1, JB_FP*8(a0)
+#else
+	stq	fp, JB_FP*8(a0)
+#endif
+	stt	$f2, JB_F2*8(a0)
+	stt	$f3, JB_F3*8(a0)
+	stt	$f4, JB_F4*8(a0)
+	stt	$f5, JB_F5*8(a0)
+	stt	$f6, JB_F6*8(a0)
+	stt	$f7, JB_F7*8(a0)
+	stt	$f8, JB_F8*8(a0)
+	stt	$f9, JB_F9*8(a0)
+
+#ifndef PIC
+	/* Call to C to (potentially) save our signal mask.  */
+	jsr	ra, __sigjmp_save
+	ldq	ra, 0(sp)
+	addq	sp, 16, sp
+	ret
+#elif defined NOT_IN_libc && defined IS_IN_rtld
+	/* In ld.so we never save the signal mask.  */
+	mov	0, v0
+	ret
+#else
+	/* Tailcall to save the signal mask.  */
+	br	$31, __sigjmp_save	!samegp
+#endif
+
+END(__sigsetjmp)
+
+/* Put these traditional entry points in the same file so that we can
+   elide much of the nonsense in trying to jmp to the real function.  */
+
+ENTRY(_setjmp)
+	ldgp	gp, 0(pv)
+	.prologue 1
+	mov	0, a1
+	br	$sigsetjmp_local
+END(_setjmp)
+libc_hidden_def (_setjmp)
+
+ENTRY(setjmp)
+	ldgp	gp, 0(pv)
+	.prologue 1
+	mov	1, a1
+	br	$sigsetjmp_local
+END(setjmp)
+
+weak_extern(_setjmp)
+weak_extern(setjmp)