libgcrypt: Import libgcrypt 1.11

We currently use an old version of libgcrypt which results in us having
fewer ciphers and missing on many other improvements.

Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>

grub-core/lib/libgcrypt/mpi/arm/mpih-mul2.S

@@ -0,0 +1,94 @@
+/* ARM mul_2 -- Multiply a limb vector with a limb and add the result to
+ *              a second limb vector.
+ *
+ *      Copyright (C) 2013 Jussi Kivilinna <jussi.kivilinna@iki.fi>
+ *
+ * This file is part of Libgcrypt.
+ *
+ * Libgcrypt 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.
+ *
+ * Libgcrypt 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 this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ * Note: This code is heavily based on the GNU MP Library (version 4.2.1).
+ */
+
+#include "sysdep.h"
+#include "asm-syntax.h"
+
+.syntax unified
+.arm
+
+/*******************
+ * mpi_limb_t
+ * _gcry_mpih_addmul_1( mpi_ptr_t res_ptr,	r0
+ *		     mpi_ptr_t s1_ptr,		r1
+ *		     mpi_size_t s1_size,	r2
+ *		     mpi_limb_t s2_limb)	r3
+ */
+
+.text
+
+.globl _gcry_mpih_addmul_1
+.type  _gcry_mpih_addmul_1,%function
+_gcry_mpih_addmul_1:
+	push	{r4, r5, r6, r8, r10, lr};
+	mov	lr, #0;
+	cmn	r0, #0; /* clear carry flag */
+
+	tst	r2, #3;
+	beq	.Large_loop;
+.Loop:
+	ldr	r5, [r1], #4;
+	ldr	r4, [r0];
+	sub	r2, #1;
+	adcs	r4, lr;
+	mov	lr, #0;
+	umlal	r4, lr, r5, r3;
+	tst	r2, #3;
+	str	r4, [r0], #4;
+	bne	.Loop;
+
+	teq	r2, #0;
+	beq	.Lend;
+
+.Large_loop:
+	ldr	r5, [r1], #4;
+	ldm	r0, {r4, r6, r8, r10};
+
+	sub	r2, #4;
+	adcs	r4, lr;
+	mov	lr, #0;
+	umlal	r4, lr, r5, r3;
+
+	ldr	r5, [r1], #4;
+	adcs	r6, lr;
+	mov	lr, #0;
+	umlal	r6, lr, r5, r3;
+
+	ldr	r5, [r1], #4;
+	adcs	r8, lr;
+	mov	lr, #0;
+	umlal	r8, lr, r5, r3;
+
+	ldr	r5, [r1], #4;
+	adcs	r10, lr;
+	mov	lr, #0;
+	umlal	r10, lr, r5, r3;
+
+	teq	r2, #0;
+	stm	r0!, {r4, r6, r8, r10};
+	bne	.Large_loop;
+
+.Lend:
+	adc	r0, lr, #0;
+	pop	{r4, r5, r6, r8, r10, pc};
+.size _gcry_mpih_addmul_1,.-_gcry_mpih_addmul_1;